Import project from sourceforge.net

AUTHORS

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+This file contains a list of the people who have contributed code and/or
+documentation to the vchanger project. Thanks to all!
+
+
+Principle Authors:
+
+    Josh Fisher
+
+Contributors:

COPYING

@@ -0,0 +1,381 @@
+COPYRIGHTS:
+Vchanger is Copyright (C) 2008-2015 Josh Fisher.
+
+LICENSE:
+Vchanger is licensed under the GNU GPL version 2, the full text
+of which is included below.
+
+IP RIGHTS:
+Recipient understands that although each Contributor grants the
+licenses to its Contributions set forth herein, no assurances are
+provided by any Contributor that the Program does not infringe
+the patent or other intellectual property rights of any other
+entity.  Each Contributor disclaims any liability to Recipient
+for claims brought by any other entity based on infringement of
+intellectual property rights or otherwise.  As a condition to
+exercising the rights and licenses granted hereunder, each
+Recipient hereby assumes sole responsibility to secure any other
+intellectual property rights needed, if any.  For example, if a
+third party patent license is required to allow Recipient to
+distribute the Program, it is Recipient's responsibility to
+acquire that license before distributing the Program.
+
+
+DISCLAIMER:
+NO WARRANTY
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
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+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+=====================================
+
+
+============== Text of GPL version 2 license ========
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+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
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+
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+  Ty Coon, President of Vice
+
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+library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.

ChangeLog

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+vchanger ChangeLog
+
+1.0.1  (2015-06-09)
+  - When looking up the mountpoint of a magazine by UUID with libudev,
+    also look for mountpoint of device alias names in DEVLINKS in addition
+	to the DEVNAME.	(Fixes bug 12)
+  - The f_mntonname field in struct statfs was misspelled, causing a compile
+    error on BSD systems. (Fixes bug 10)
+  - Use static linking of libwinpthread on Windows builds to prevent missing
+    libwinpthreads-1.dll error. (Fixes bug 11)
+  - Set signal handler for SIGPIPE to SIG_IGN and do not reacquire process
+    lockfile when deleting the update lockfile. This should prevent a race
+    condition in vchanger when Bacula invokes other instances of vchanger
+    recursively when an 'update slots' or 'label barcodes' command is issued
+    via bconsole. (Fixes bug 9)
+  - Fixed nsis script error causing Windows installer to install incorrectly
+    for 64-bit Windows and fail to create Start Menu items. Also now correctly
+	removes itself from the Installed Programs list when uninstalled.
+1.0.0  (2015-04-14)
+  - Major change to magazine and work directory structure.
+     - Virtual drive symlink points to volume file directly
+     - All drive and magazine state info kept in work directory
+     - Magazines have a dynamic number of virtual slots corresponding
+       to a variable number of volume files
+     - Volume files may be moved from one magazine to another
+  - Allow an unlimited number of virtual drives
+  - Add ability to issue 'update slots' and 'label barcodes' commands
+    to Bacula to support plug-n-play of removable drives
+  - Add support for undocumented Bacula Autochanger Interface command LISTALL
+  - Added extended API command CREATEVOLS to allow creating and labelling
+    volume files with a single command.
+  - Added extended API command REFRESH to support plug-n-play of removable
+    drives
+  - Removed deprecated extended API command INITMAG
+  - Add udev support for finding devices by UUID
+  - Increased amount of logging
+  - Enable use of getfsstat() for finding mountpoint by UUID to support
+    building for BSD / OSX
+  - Allow building without UUID capability to support minimal systems having
+    neither libudev nor libblkid/libuuid.
+  - Changed Windows version requirement to Server 2008+ / Vista+
+  - Allow cross-compile of 64-bit Windows target
+0.8.6  (2010-05-13)
+  - Use opendir instead of stat to trigger automounts
+  - Add ability to configure logging level
+  - Add extensive logging output to enhance debugging
+  - Maintain persistent magazine bay state to prevent magazines
+    in multi-magazine changers from inadvertently being moved
+    when a lower numbered bay has its magazine detached.
+0.8.5  (2010-02-05)
+  - Fix esfsprogs link errors on some Linux distros (bug 2941290)
+  - Merge "safe strncat" patch
+0.8.4  (2009-12-02)
+  - Ignore slot number passed to 'loaded' command (bug 2907225)
+  - Fix libblkid linking for FreeBSD (bug 2872006)
+0.8.3  (2009-10-27)
+  - Add specification of magazines by partition UUID
+  - Add LISTMAGS command to list magazines assigned to an autochanger
+  - Empty, rather than delete, loadedN files to prevent out of space
+    error on magazine partition
+  - Fix error parsing index files. (bug 2785183)
+  - Fixes for FreeBSD compatibility. (bug 2872006)
+0.8.2  [2009-04-14]
+  - Corrections to documentation
+0.8.1  [2009-01-27]
+  - Add extended command INITMAG for initializing new magazines
+  - Added command line flags to set uid and gid when run as root
+  - Force LOADED command to return zero when no slot is loaded
+  - Changed 99-by-label-fix.rules to work with centos5/el5
+  - Added stateN files to track the loaded state of each virtual
+    drive when last invoked
+  - Removed debug line inadvertently left in by_label_fix.sh
+  
+0.8.0  [2008-10-03]
+  - Initial Release

INSTALL

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+
+This file explains general installation instructions. The documentation
+included in the ./doc directory of the vchanger source archive should be
+consulted instead.
+
+
+--------------------------------------------------------------------------
+Using GNU autoconfig
+--------------------------------------------------------------------------
+  1.    Run ./configure to generate config.h and the various Makefiles.
+        ./configure --help   gives a list of possible options. Usually,
+        the default options will suffice to install vchanger under the
+        /usr/local directory.
+
+        Some systems require unusual options for compilation or linking that
+        the `configure' script does not know about.  You can give `configure'
+        initial values for variables by setting them in the environment.  Using
+        a Bourne-compatible shell, you can do that on the command line like
+        this:
+                CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure
+        Or on systems that have the `env' program, you can do it like this:
+                env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure
+        Or if you're using a non Bourne-compatible shell, you can do:
+                sh -c 'CFLAGS="-O2 -g" ./configure
+
+        A typical vchanger development configuration for Linux is:
+
+        CFLAGS="-g -O2 -Wall" \
+          ./configure
+
+  2.    Carefully review the output from ./configure.  If it is not
+        what you want, re-run the ./configure.  Often ./configure "caches"
+        things and thus remembers the last ./configure options.  If you
+        want to be sure you are starting fresh after a ./configure,
+        do a:
+
+            make distclean
+
+        before re-running ./configure.  "make distclean" wipes out any
+        knowledge of the ./configure, so don't do it after you have a
+        configuration that suits your needs, otherwise the "make" will
+        not work.
+
+  3.    Build it
+            make
+
+  4.    Install it
+            make install-strip
+
+  5.    Create a autochanger configuration file and configure Bacula(TM)
+        to use that autochanger. Please see the documentation in the
+        ./doc directory for details.

Makefile.am

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+AUTOMAKE_OPTIONS = foreign
+SUBDIRS = src doc scripts
+docdir = $(datadir)/doc/$(PACKAGE)-${VERSION}
+doc_DATA = AUTHORS \
+	ChangeLog \
+	COPYING \
+	INSTALL \
+	NEWS \
+	README \
+    ReleaseNotes \
+	doc/vchangerHowto.html \
+	doc/vchanger-example.conf \
+	doc/example-vchanger-udev.rules

Makefile.in

@@ -0,0 +1,817 @@
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+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
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+
+VPATH = @srcdir@
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+am__make_running_with_option = \
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+	$(am__post_remove_distdir)
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+	$(am__post_remove_distdir)
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+	*.tar.gz*) \
+	  GZIP=$(GZIP_ENV) gzip -dc $(distdir).tar.gz | $(am__untar) ;;\
+	*.tar.bz2*) \
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+	*.tar.xz*) \
+	  xz -dc $(distdir).tar.xz | $(am__untar) ;;\
+	*.tar.Z*) \
+	  uncompress -c $(distdir).tar.Z | $(am__untar) ;;\
+	*.shar.gz*) \
+	  GZIP=$(GZIP_ENV) gzip -dc $(distdir).shar.gz | unshar ;;\
+	*.zip*) \
+	  unzip $(distdir).zip ;;\
+	esac
+	chmod -R a-w $(distdir)
+	chmod u+w $(distdir)
+	mkdir $(distdir)/_build $(distdir)/_inst
+	chmod a-w $(distdir)
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+	dc_install_base=`$(am__cd) $(distdir)/_inst && pwd | sed -e 's,^[^:\\/]:[\\/],/,'` \
+	  && dc_destdir="$${TMPDIR-/tmp}/am-dc-$$$$/" \
+	  && am__cwd=`pwd` \
+	  && $(am__cd) $(distdir)/_build \
+	  && ../configure --srcdir=.. --prefix="$$dc_install_base" \
+	    $(AM_DISTCHECK_CONFIGURE_FLAGS) \
+	    $(DISTCHECK_CONFIGURE_FLAGS) \
+	  && $(MAKE) $(AM_MAKEFLAGS) \
+	  && $(MAKE) $(AM_MAKEFLAGS) dvi \
+	  && $(MAKE) $(AM_MAKEFLAGS) check \
+	  && $(MAKE) $(AM_MAKEFLAGS) install \
+	  && $(MAKE) $(AM_MAKEFLAGS) installcheck \
+	  && $(MAKE) $(AM_MAKEFLAGS) uninstall \
+	  && $(MAKE) $(AM_MAKEFLAGS) distuninstallcheck_dir="$$dc_install_base" \
+	        distuninstallcheck \
+	  && chmod -R a-w "$$dc_install_base" \
+	  && ({ \
+	       (cd ../.. && umask 077 && mkdir "$$dc_destdir") \
+	       && $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" install \
+	       && $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" uninstall \
+	       && $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" \
+	            distuninstallcheck_dir="$$dc_destdir" distuninstallcheck; \
+	      } || { rm -rf "$$dc_destdir"; exit 1; }) \
+	  && rm -rf "$$dc_destdir" \
+	  && $(MAKE) $(AM_MAKEFLAGS) dist \
+	  && rm -rf $(DIST_ARCHIVES) \
+	  && $(MAKE) $(AM_MAKEFLAGS) distcleancheck \
+	  && cd "$$am__cwd" \
+	  || exit 1
+	$(am__post_remove_distdir)
+	@(echo "$(distdir) archives ready for distribution: "; \
+	  list='$(DIST_ARCHIVES)'; for i in $$list; do echo $$i; done) | \
+	  sed -e 1h -e 1s/./=/g -e 1p -e 1x -e '$$p' -e '$$x'
+distuninstallcheck:
+	@test -n '$(distuninstallcheck_dir)' || { \
+	  echo 'ERROR: trying to run $@ with an empty' \
+	       '$$(distuninstallcheck_dir)' >&2; \
+	  exit 1; \
+	}; \
+	$(am__cd) '$(distuninstallcheck_dir)' || { \
+	  echo 'ERROR: cannot chdir into $(distuninstallcheck_dir)' >&2; \
+	  exit 1; \
+	}; \
+	test `$(am__distuninstallcheck_listfiles) | wc -l` -eq 0 \
+	   || { echo "ERROR: files left after uninstall:" ; \
+	        if test -n "$(DESTDIR)"; then \
+	          echo "  (check DESTDIR support)"; \
+	        fi ; \
+	        $(distuninstallcheck_listfiles) ; \
+	        exit 1; } >&2
+distcleancheck: distclean
+	@if test '$(srcdir)' = . ; then \
+	  echo "ERROR: distcleancheck can only run from a VPATH build" ; \
+	  exit 1 ; \
+	fi
+	@test `$(distcleancheck_listfiles) | wc -l` -eq 0 \
+	  || { echo "ERROR: files left in build directory after distclean:" ; \
+	       $(distcleancheck_listfiles) ; \
+	       exit 1; } >&2
+check-am: all-am
+check: check-recursive
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+	for dir in "$(DESTDIR)$(docdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
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+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
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+clean-am: clean-generic mostlyclean-am
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+distclean: distclean-recursive
+	-rm -f $(am__CONFIG_DISTCLEAN_FILES)
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+install-dvi-am:
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+install-exec-am:
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+install-html: install-html-recursive
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+install-html-am:
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+	-rm -f $(am__CONFIG_DISTCLEAN_FILES)
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+.MAKE: $(am__recursive_targets) all install-am install-strip
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+.PHONY: $(am__recursive_targets) CTAGS GTAGS TAGS all all-am \
+	am--refresh check check-am clean clean-cscope clean-generic \
+	cscope cscopelist-am ctags ctags-am dist dist-all dist-bzip2 \
+	dist-gzip dist-lzip dist-shar dist-tarZ dist-xz dist-zip \
+	distcheck distclean distclean-generic distclean-hdr \
+	distclean-tags distcleancheck distdir distuninstallcheck dvi \
+	dvi-am html html-am info info-am install install-am \
+	install-data install-data-am install-docDATA install-dvi \
+	install-dvi-am install-exec install-exec-am install-html \
+	install-html-am install-info install-info-am install-man \
+	install-pdf install-pdf-am install-ps install-ps-am \
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+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:

NEWS

@@ -0,0 +1 @@
+Please see the ReleaseNotes file.

README

@@ -0,0 +1,6 @@
+vchanger is designed to implement a disk-based virtual autochanger device for
+use with Bacula(TM), an open-source network backup solution.
+
+Please see the vchangerHowto.html in the doc directory of the vchanger source
+for further documentation and installation instructions.
+

ReleaseNotes

@@ -0,0 +1,254 @@
+ Release Notes for vchanger 1.0.1                  2015-06-09
+
+ Release 1.0.1
+ 
+ This is a bug fix release, fixing four issues found in version 1.0.0.
+ Additionally, the Windows installer was fixed to correctly install on
+ 64-bit Windows and create Start Menu items.
+
+Bugs Fixed:
+
+      9  Vchanger may hang when issuing commands to Bacula
+     10  uuidlookup.c compilation failure on FreeBSD 9.3
+     11  Missing libwinpthread-1.dll error in Windows version
+     12  Mounted magazines specified by UUID not always detected
+
+ ==================================================================
+ 
+
+ Release 1.0.0
+
+ This is a major release adding several features and a change in the  
+ structure of magazines and the way volume files are "loaded" into  
+ virtual drives. These changes allow for an unlimited and variable 
+ number  of volume files on each magazine, and allow adding and deleting  
+ volumes to/from magazines, as well as moving volume files from one  
+ magazine to another. Virtual drives are now symlinks dynamically 
+ created  by the LOAD command. An unlimited number of virtual drives per 
+ autochanger  is supported without requiring a vchanger configuration 
+ change. The  number of virtual drives used is determined solely by the 
+ Device resources  defined in bacula-sd.conf.
+ 
+ Also, vchanger will now automatically issue 'update slots' and
+ 'label barcodes' commands to Bacula via bconsole when it detects a
+ change in the availability of any of its defined magazines or when
+ volume files are created with the CREATEVOLS command. Together with
+ an automounting mechanism, this makes the attachment and detachment
+ of removable drives a plug-n-play operation.
+ 
+ To aid in using removable drives on systems having udev, vchanger now
+ includes a udev rules generator and helper scripts to enable the
+ automatic mounting of magazine filesystems triggered by udev hotplug
+ events. The advantage to using this automounting method, as opposed to
+ autofs or window manager automounters using dbus, etc., is that these
+ scripts will invoke vchanger with a new REFRESH command that will issue
+ an 'update slots' command via bconsole whenever removable drives
+ are attached or detached.
+ 
+ Change Summary:
+ 
+ The concept of a 'magazine' has changed. A magazine remains a 
+ directory,   usually the mountpoint of a filesystem, however no metadata 
+ files are  now  stored on the magazines and volume files are not renamed 
+ when loading  and  unloading virtual drives. There is now no requirement 
+ that all  magazines  have the same number of volumes, and volume files 
+ may have any  filename.  New volume files can be created on a magazine 
+ at any time. A  new extended  interface command, CREATEVOLS, has been 
+ implemented for this  purpose. A  magazine is now simply a filesystem 
+ (or directory) containing  some  variable number of volume files. Any 
+ directory containing volume  files  can be used as a magazine in 
+ vchanger, including for example  volumes  created using Bacula's 
+ built-in disk storage handling. Volume files may  be deleted from 
+ magazines or moved between magazines. The only caveat is  that the 
+ volume's Media Type must match that of the autochanger's  Storage 
+ resource.
+
+ Virtual drives are now simply a symlink in the autochanger's work 
+ directory. The  drive number is the name of the symlink. For example,
+ if the autochanger's  work directory is /var/spool/vchanger/changer1,
+ then virtual drive 0 is a  symlink at the path 
+ /var/spool/vchanger/changer1/0. The symlink's path is  then specified as 
+ the Archive Device in the Device resource defined in  bacula-sd.conf for 
+ the autochanger's drive 0. Vchanger implements the LOAD  command by 
+ creating this symlink pointing at the volume file mapped to the  slot 
+ requested to be loaded. A subsequent UNLOAD command deletes the  
+ symlink. In previous versions, a LOAD created a symlink pointing to the  
+ mountpoint of the magazine and then renamed the volume file on the  
+ magazine to 'drive0', 'drive1', etc. This was because the original 
+ design  criteria, (dating to before the release of Bacula 2.0.0), 
+ required that vchanger run on Windows Server 2003, which did not have 
+ the capability of file-level symlinks. However, file-level symlinks is 
+ a much more robust method, handling any "out of space" conditions in a 
+ clean, expected way. For that reason, use of vchanger on versions of 
+ Windows without file-level symlinks is no longer supported.
+ 
+ An autochanger's magazines are assigned in its vchanger configuration
+ file. An unlimited number of magazines is supported and the storage space used
+ by an autochanger can be scaled at any time by simply adding additional
+ magazines and creating volume files on them. Expansion of the storage
+ space does not require any change to Bacula's configuration. Any
+ combination of one or more of the assigned magazines can be attached
+ (mounted) at any time. 
+ 
+ When a magazine is attached or detached there is of course a change in
+ which volumes are available for reading and writing. Bacula must be
+ instructed to update its database to reflect the change. This is
+ analogous to swapping tapes in a tape autochanger library. Bacula has a
+ bconsole command used for this purpose, the 'update slots' command. In
+ general, one would insert or remove tapes and then issue an 'update slots'
+ command in bconsole to inform Bacula of the change. With vchanger,
+ attaching or detaching a magazine also requires that the 'update slots'
+ command be issued, however vchanger now detects changes to the currently
+ available volume files and automatically issues the 'update slots'
+ command when needed. This allows swapping magazines to be a true
+ plug-n-play operation.
+ 
+ The scripts directory in the vchanger source tree contains a script to
+ generate the udev rules needed to automatically mount the magazines
+ filesystems defined in the vchanger configuration file. These rules will
+ cause udev to launch scripts, also included in the scripts directory, to
+ handle a "hot add" event by mounting the magazine filesystem and invoking
+ vchanger with the REFRESH command to issue an 'update slots' command to
+ Bacula. Likewise, a "hot delete" event will launch a script to unmount
+ the filesystem and again invoke vchanger with the REFRESH command.
+ 
+ If vchanger is compiled on a system supporting udev, then libudev will be  
+ used to determine the device node of magazine partitions specified by  
+ UUID. If compiled on a system without udev, the older method of using 
+ libblkid and  libuuid will be used if available. For Windows builds, 
+ win32 API functions are used to map filesystem UUID to device node. If
+ the getmntent() function is not available on the target system for
+ determining a filesystem's mountpoint, then vchanger will use the
+ getfsstat() function, allowing magazines to be specified by UUID on many
+ BSD and OSX systems. A build for a minimal system having neither libudev
+ nor libblkid will succeed, however specifying magazines by UUID will not
+ function and result in an error, meaning that such minimal systems must
+ only specify magazines by directory path. These changes should alleviate
+ many of the problems people have had in the past building vchanger for
+ non-Linux systems. 
+ 
+ Bugs Fixed:
+      5  Compile errors on Debian or Ubuntu
+      6  Broken libblkid returns wrong device for UUID
+      7  Limitation on number of virtual drives
+      8  Compile errors under Solaris 10
+
+ ==================================================================
+ 
+
+ Release 0.8.6
+
+ When using the automount_dir directive, opendir() is now used rather 
+ than  stat(), to trigger automounts. For some combinations of Linux 
+ kernel and older  versions of autofs, stat() is not sufficient to 
+ trigger an automount.
+
+ Extensive logging was added to this version, along with a new 
+ configuration  directive to set the logging level. This should greatly 
+ help problem diagnosis.
+
+ State information for the magazine bays is now kept in the work 
+ directory  along with virtual drive state. In a multi-magazine changer, 
+ when a magazine  was unloaded from a bay, magazines in higher numbered 
+ bays were being shifted  down to appear loaded into a different bay 
+ than they were before the magazine  was unloaded. With this version, 
+ magazines will remain loaded in the same bay  until they are unloaded.
+
+ Bugs Fixed:
+
+ ==================================================================
+
+
+ Release 0.8.5
+
+ Minor bug fix release. Fixes link errors for older versions of 
+ e2fsprogs on some  distros (bug 4). Also applies the "safe strncat" 
+ patch to prevent a buffer  overrun present in strncat in some standard 
+ C libraries.
+ 
+ Bugs Fixed:
+      4  Compile errors related to e2fsprogs libraries
+
+ ==================================================================
+
+
+ Release 0.8.4
+
+ This release is a bug fix release. All users of version 0.8.3 should 
+ upgrade to  0.8.4 to prevent a bug causing Bacula to mark volumes in 
+ error.
+
+ Change Summary:
+ The slot number passed in parameter 3 is now ignored for the LOADED 
+ command. This should fix a bug causing Bacula to mark a volume 
+ loaded into a drive in error when a job starts after the magazine 
+ has been removed. 
+
+ Bugs Fixed:
+      3  LOADED command fails when param 3 (slot) is zero
+      2  Compile fail on FreeBSD 7.2
+
+ ==================================================================
+
+ Release 0.8.3
+
+ This release adds the ability to specify magazine partitions by UUID,
+ making it much easier to use multiple simultaneous magazines.
+ 
+ Change Summary:
+
+ Specifying magazine partitions by UUID is a paradigm shift in the way 
+ magazines may be assigned to a particular autochanger. Previously, 
+ magazines were assigned to an autochanger by giving the magazine a 
+ filesystem label matching the autochanger's name. Standard udev 
+ rules on many distributions create a device symlink in 
+ /dev/disk/by-label that allow easily configuring autofs to mount the   
+ magazine at a known mountpoint. This works well for a single magazine 
+ autochanger, but for a multi-magazine autochanger special udev rules 
+ are needed to create unique device symlinks when all of the 
+ magazines have the same filesystem label. Since the standard udev 
+ rules on most systems create device symlinks by filesystem UUID 
+ under /dev/disk/by-uuid, assigning magazines to an autochanger by UUID 
+ makes it much easier to configure automounting that will work for an 
+ autochanger with any number of simultaneously mounted magazines.
+  
+ Note that magazines may still be specified as a directory path, so the 
+ previous methods still work, however it is recommended to assign 
+ magazines by UUID if possible.
+ 
+ As an aid to working with multi-magazine autochangers, a new extended 
+ API command, LISTMAGS, was added to list the magazines currently 
+ "inserted" into each of the autochanger's magazine bays. Like the 
+ INITMAG command, it is an extension to the Bacula Autochanger API and so 
+ is never invoked by Bacula.
+
+ Bugs Fixed:
+      1  Unable to detect when drives inserted using the vchanger
+      2  Compile fail on FreeBSD 7.2
+
+ ==================================================================
+
+ Release 0.8.2
+ 
+ This release fixes some documentation errors. No changes were
+ made to the vchanger source.
+ 
+ Change Summary:
+ 2009-04-14
+  - Fixed ambiguities in the Howto kindly pointed out by Sean Brannon.
+ 2009-01-27
+  - Added command line flags to set uid and gid when run as root
+  - Force LOADED command to return zero when no slot is loaded
+  - Changed 99-by-label-fix.rules to work with centos5/el5
+  - Added stateN files to track the loaded state of each virtual
+    drive when last invoked
+  - Removed debug line inadvertently left in by_label_fix.sh
+ 
+ 2008-10-03
+ - This initial release has been running on a test server with
+   Bacula 2.4.2 on Linux for over a week, so is considered beta.
+ 
+ Bugs Fixed:
+ 
+ =================================================================
+

config.h.in

@@ -0,0 +1,310 @@
+/* config.h.in.  Generated from configure.ac by autoheader.  */
+
+/* Copyright notice */
+#undef COPYRIGHT_NOTICE
+
+/* Define to 1 if you have the <alloca.h> header file. */
+#undef HAVE_ALLOCA_H
+
+/* Have blkid_evaluate_tag function */
+#undef HAVE_BLKID_EVALUATE_TAG
+
+/* Have blkid_get_devname function */
+#undef HAVE_BLKID_GET_DEVNAME
+
+/* Define to 1 if you have the <ctype.h> header file. */
+#undef HAVE_CTYPE_H
+
+/* Define to 1 if you have the <dirent.h> header file. */
+#undef HAVE_DIRENT_H
+
+/* Define to 1 if you don't have `vprintf' but do have `_doprnt.' */
+#undef HAVE_DOPRNT
+
+/* Define to 1 if you have the <errno.h> header file. */
+#undef HAVE_ERRNO_H
+
+/* Define to 1 if you have the <fcntl.h> header file. */
+#undef HAVE_FCNTL_H
+
+/* Define to 1 if you have the `getfsstat' function. */
+#undef HAVE_GETFSSTAT
+
+/* Define to 1 if you have the `getline' function. */
+#undef HAVE_GETLINE
+
+/* Define to 1 if you have the `getmntent' function. */
+#undef HAVE_GETMNTENT
+
+/* Define to 1 if you have the `getmntent_r' function. */
+#undef HAVE_GETMNTENT_R
+
+/* Define to 1 if you have the <getopt.h> header file. */
+#undef HAVE_GETOPT_H
+
+/* Define to 1 if you have the `gettimeofday' function. */
+#undef HAVE_GETTIMEOFDAY
+
+/* Define to 1 if you have the `getuid' function. */
+#undef HAVE_GETUID
+
+/* Define to 1 if you have the <grp.h> header file. */
+#undef HAVE_GRP_H
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#undef HAVE_INTTYPES_H
+
+/* Define to 1 if you have the <io.h> header file. */
+#undef HAVE_IO_H
+
+/* Define to 1 if you have the <libgen.h> header file. */
+#undef HAVE_LIBGEN_H
+
+/* Define to 1 if you have the <libudev.h> header file. */
+#undef HAVE_LIBUDEV_H
+
+/* Define to 1 if you have the <limits.h> header file. */
+#undef HAVE_LIMITS_H
+
+/* Define to 1 if you have the <locale.h> header file. */
+#undef HAVE_LOCALE_H
+
+/* Define to 1 if you have the `localtime_r' function. */
+#undef HAVE_LOCALTIME_R
+
+/* Define to 1 if you have the <memory.h> header file. */
+#undef HAVE_MEMORY_H
+
+/* Define to 1 if you have the <mntent.h> header file. */
+#undef HAVE_MNTENT_H
+
+/* Define to 1 if you have the <ndir.h> header file, and it defines `DIR'. */
+#undef HAVE_NDIR_H
+
+/* Define to 1 if you have the <optarg.h> header file. */
+#undef HAVE_OPTARG_H
+
+/* Define to 1 if you have the `pipe' function. */
+#undef HAVE_PIPE
+
+/* Define to 1 if you have the <pthread.h> header file. */
+#undef HAVE_PTHREAD_H
+
+/* Define to 1 if you have the <pwd.h> header file. */
+#undef HAVE_PWD_H
+
+/* Define to 1 if you have the `readlink' function. */
+#undef HAVE_READLINK
+
+/* Define to 1 if you have the `setlocale' function. */
+#undef HAVE_SETLOCALE
+
+/* have header shlobj.h */
+#undef HAVE_SHLOBJ_H
+
+/* Define to 1 if you have the <signal.h> header file. */
+#undef HAVE_SIGNAL_H
+
+/* Define to 1 if you have the `sleep' function. */
+#undef HAVE_SLEEP
+
+/* Define to 1 if you have the <stdarg.h> header file. */
+#undef HAVE_STDARG_H
+
+/* Define to 1 if stdbool.h conforms to C99. */
+#undef HAVE_STDBOOL_H
+
+/* Define to 1 if you have the <stddef.h> header file. */
+#undef HAVE_STDDEF_H
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#undef HAVE_STDINT_H
+
+/* Define to 1 if you have the <stdio.h> header file. */
+#undef HAVE_STDIO_H
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#undef HAVE_STDLIB_H
+
+/* Define to 1 if you have the <strings.h> header file. */
+#undef HAVE_STRINGS_H
+
+/* Define to 1 if you have the <string.h> header file. */
+#undef HAVE_STRING_H
+
+/* Define to 1 if you have the `symlink' function. */
+#undef HAVE_SYMLINK
+
+/* Define to 1 if you have the `syslog' function. */
+#undef HAVE_SYSLOG
+
+/* Define to 1 if you have the <syslog.h> header file. */
+#undef HAVE_SYSLOG_H
+
+/* Define to 1 if you have the <sys/bitypes.h> header file. */
+#undef HAVE_SYS_BITYPES_H
+
+/* Define to 1 if you have the <sys/dir.h> header file, and it defines `DIR'.
+   */
+#undef HAVE_SYS_DIR_H
+
+/* Define to 1 if you have the <sys/mount.h> header file. */
+#undef HAVE_SYS_MOUNT_H
+
+/* Define to 1 if you have the <sys/ndir.h> header file, and it defines `DIR'.
+   */
+#undef HAVE_SYS_NDIR_H
+
+/* Define to 1 if you have the <sys/param.h> header file. */
+#undef HAVE_SYS_PARAM_H
+
+/* Define to 1 if you have the <sys/select.h> header file. */
+#undef HAVE_SYS_SELECT_H
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#undef HAVE_SYS_STAT_H
+
+/* Define to 1 if you have the <sys/timespec.h> header file. */
+#undef HAVE_SYS_TIMESPEC_H
+
+/* Define to 1 if you have the <sys/time.h> header file. */
+#undef HAVE_SYS_TIME_H
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#undef HAVE_SYS_TYPES_H
+
+/* Define to 1 if you have the <sys/ucred.h> header file. */
+#undef HAVE_SYS_UCRED_H
+
+/* Define to 1 if you have the <sys/wait.h> header file. */
+#undef HAVE_SYS_WAIT_H
+
+/* Define to 1 if you have the <time.h> header file. */
+#undef HAVE_TIME_H
+
+/* Define to 1 if typeof works with your compiler. */
+#undef HAVE_TYPEOF
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#undef HAVE_UNISTD_H
+
+/* Define to 1 if you have the <utime.h> header file. */
+#undef HAVE_UTIME_H
+
+/* Define to 1 if you have the <varargs.h> header file. */
+#undef HAVE_VARARGS_H
+
+/* Define to 1 if you have the `vprintf' function. */
+#undef HAVE_VPRINTF
+
+/* have header windows.h */
+#undef HAVE_WINDOWS_H
+
+/* have header winioctl.h */
+#undef HAVE_WINIOCTL_H
+
+/* have header winreg.h */
+#undef HAVE_WINREG_H
+
+/* have header winsock.h */
+#undef HAVE_WINSOCK_H
+
+/* Define to 1 if the system has the type `_Bool'. */
+#undef HAVE__BOOL
+
+/* Name of package */
+#undef PACKAGE
+
+/* Define to the address where bug reports for this package should be sent. */
+#undef PACKAGE_BUGREPORT
+
+/* Define to the full name of this package. */
+#undef PACKAGE_NAME
+
+/* Define to the full name and version of this package. */
+#undef PACKAGE_STRING
+
+/* Define to the one symbol short name of this package. */
+#undef PACKAGE_TARNAME
+
+/* Define to the home page for this package. */
+#undef PACKAGE_URL
+
+/* Define to the version of this package. */
+#undef PACKAGE_VERSION
+
+/* Define to 1 if you have the ANSI C header files. */
+#undef STDC_HEADERS
+
+/* Version number of package */
+#undef VERSION
+
+/* Enable large inode numbers on Mac OS X 10.5.  */
+#ifndef _DARWIN_USE_64_BIT_INODE
+# define _DARWIN_USE_64_BIT_INODE 1
+#endif
+
+/* Number of bits in a file offset, on hosts where this is settable. */
+#undef _FILE_OFFSET_BITS
+
+/* Define for large files, on AIX-style hosts. */
+#undef _LARGE_FILES
+
+/* Define for Solaris 2.5.1 so the uint32_t typedef from <sys/synch.h>,
+   <pthread.h>, or <semaphore.h> is not used. If the typedef were allowed, the
+   #define below would cause a syntax error. */
+#undef _UINT32_T
+
+/* Define for Solaris 2.5.1 so the uint64_t typedef from <sys/synch.h>,
+   <pthread.h>, or <semaphore.h> is not used. If the typedef were allowed, the
+   #define below would cause a syntax error. */
+#undef _UINT64_T
+
+/* Define to empty if `const' does not conform to ANSI C. */
+#undef const
+
+/* Define to `int' if <sys/types.h> doesn't define. */
+#undef gid_t
+
+/* Define to `__inline__' or `__inline' if that's what the C compiler
+   calls it, or to nothing if 'inline' is not supported under any name.  */
+#ifndef __cplusplus
+#undef inline
+#endif
+
+/* Define to the type of a signed integer type of width exactly 32 bits if
+   such a type exists and the standard includes do not define it. */
+#undef int32_t
+
+/* Define to the type of a signed integer type of width exactly 64 bits if
+   such a type exists and the standard includes do not define it. */
+#undef int64_t
+
+/* Define to `int' if <sys/types.h> does not define. */
+#undef mode_t
+
+/* Define to `long int' if <sys/types.h> does not define. */
+#undef off_t
+
+/* Define to `int' if <sys/types.h> does not define. */
+#undef pid_t
+
+/* Define to `unsigned int' if <sys/types.h> does not define. */
+#undef size_t
+
+/* Define to `int' if <sys/types.h> does not define. */
+#undef ssize_t
+
+/* Define to __typeof__ if your compiler spells it that way. */
+#undef typeof
+
+/* Define to `int' if <sys/types.h> doesn't define. */
+#undef uid_t
+
+/* Define to the type of an unsigned integer type of width exactly 32 bits if
+   such a type exists and the standard includes do not define it. */
+#undef uint32_t
+
+/* Define to the type of an unsigned integer type of width exactly 64 bits if
+   such a type exists and the standard includes do not define it. */
+#undef uint64_t

configure.ac

@@ -0,0 +1,71 @@
+#                                               -*- Autoconf -*-
+# Process this file with autoconf to produce a configure script.
+
+AC_PREREQ([2.63])
+AC_INIT([vchanger], [1.0.1], [jfisher@jaybus.com])
+AC_DEFINE([COPYRIGHT_NOTICE],["AC_PACKAGE_NAME Copyright (c) 2006-2015 Josh Fisher"],[Copyright notice])
+AC_CONFIG_SRCDIR([src])
+AC_CONFIG_LIBOBJ_DIR([src/compat])
+AC_CONFIG_HEADERS([config.h])
+AM_INIT_AUTOMAKE
+
+# Checks for programs.
+AC_PROG_CC
+AC_PROG_CXX
+AC_PROG_INSTALL
+AC_CHECK_TOOL([STRIP],[strip], [])
+
+# Checks for typedefs, structures, and compiler characteristics.
+AC_C_CONST
+AC_C_INLINE
+AC_C_TYPEOF
+AC_HEADER_STDBOOL
+AC_TYPE_PID_T
+AC_TYPE_OFF_T
+AC_TYPE_SIZE_T
+AC_TYPE_SSIZE_T
+AC_TYPE_UID_T
+AC_TYPE_INT32_T
+AC_TYPE_UINT32_T
+AC_TYPE_INT64_T
+AC_TYPE_UINT64_T
+AC_TYPE_MODE_T
+AC_SYS_LARGEFILE
+
+# Use multithreading
+AC_SEARCH_LIBS([pthread_create], [pthread], [], [AC_MSG_ERROR(["could not find libpthread"])])
+# Support using libudev or libblkid for UUID lookup
+AC_SEARCH_LIBS([udev_new],[udev],[AC_CHECK_HEADERS([libudev.h])])
+AC_CHECK_HEADER([blkid/blkid.h],
+  [ AC_SEARCH_LIBS([blkid_evaluate_tag],[blkid],
+      [AC_DEFINE([HAVE_BLKID_EVALUATE_TAG],,[Have blkid_evaluate_tag function])],
+      [ AC_SEARCH_LIBS([blkid_get_devname],[blkid],
+          [AC_DEFINE([HAVE_BLKID_GET_DEVNAME],,[Have blkid_get_devname function])])
+      ])
+  ])
+
+# Checks for header files.
+AC_HEADER_DIRENT
+AC_CHECK_HEADERS_ONCE([stdio.h stdlib.h string.h stdarg.h stddef.h])
+AC_CHECK_HEADERS_ONCE([time.h sys/time.h sys/timespec.h sys/wait.h limits.h locale.h syslog.h])
+AC_CHECK_HEADERS_ONCE([sys/types.h strings.h alloca.h sys/bitypes.h getopt.h utime.h sys/stat.h])
+AC_CHECK_HEADERS_ONCE([inttypes.h ctype.h errno.h unistd.h varargs.h mntent.h])
+AC_CHECK_HEADERS_ONCE([sys/param.h sys/mount.h sys/ucred.h grp.h pwd.h dirent.h fcntl.h])
+AC_CHECK_HEADERS_ONCE([sys/select.h optarg.h pthread.h libgen.h io.h signal.h])
+AC_CHECK_HEADER([windows.h],
+  [AC_DEFINE([HAVE_WINDOWS_H],,[have header windows.h])
+   WINLDADD=-static])
+AC_SUBST(WINLDADD)
+AC_CHECK_HEADER([winioctl.h], [AC_DEFINE([HAVE_WINIOCTL_H],,[have header winioctl.h])], [], [#include <windows.h>])
+AC_CHECK_HEADER([winsock.h], [AC_DEFINE([HAVE_WINSOCK_H],,[have header winsock.h])], [], [#include <windows.h>])
+AC_CHECK_HEADER([winreg.h], [AC_DEFINE([HAVE_WINREG_H],,[have header winreg.h])], [], [#include <windows.h>])
+AC_CHECK_HEADER([shlobj.h], [AC_DEFINE([HAVE_SHLOBJ_H],,[have header shlobj.h])], [], [#include <windows.h>])
+# Checks for functions.
+AC_FUNC_VPRINTF
+AC_CHECK_FUNCS([setlocale getmntent getmntent_r getfsstat])
+
+AC_REPLACE_FUNCS([getline gettimeofday getuid localtime_r pipe readlink sleep symlink syslog])
+
+AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile scripts/Makefile])
+
+AC_OUTPUT

depcomp

@@ -0,0 +1,791 @@
+#! /bin/sh
+# depcomp - compile a program generating dependencies as side-effects
+
+scriptversion=2013-05-30.07; # UTC
+
+# Copyright (C) 1999-2013 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
+
+case $1 in
+  '')
+    echo "$0: No command.  Try '$0 --help' for more information." 1>&2
+    exit 1;
+    ;;
+  -h | --h*)
+    cat <<\EOF
+Usage: depcomp [--help] [--version] PROGRAM [ARGS]
+
+Run PROGRAMS ARGS to compile a file, generating dependencies
+as side-effects.
+
+Environment variables:
+  depmode     Dependency tracking mode.
+  source      Source file read by 'PROGRAMS ARGS'.
+  object      Object file output by 'PROGRAMS ARGS'.
+  DEPDIR      directory where to store dependencies.
+  depfile     Dependency file to output.
+  tmpdepfile  Temporary file to use when outputting dependencies.
+  libtool     Whether libtool is used (yes/no).
+
+Report bugs to <bug-automake@gnu.org>.
+EOF
+    exit $?
+    ;;
+  -v | --v*)
+    echo "depcomp $scriptversion"
+    exit $?
+    ;;
+esac
+
+# Get the directory component of the given path, and save it in the
+# global variables '$dir'.  Note that this directory component will
+# be either empty or ending with a '/' character.  This is deliberate.
+set_dir_from ()
+{
+  case $1 in
+    */*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;;
+      *) dir=;;
+  esac
+}
+
+# Get the suffix-stripped basename of the given path, and save it the
+# global variable '$base'.
+set_base_from ()
+{
+  base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'`
+}
+
+# If no dependency file was actually created by the compiler invocation,
+# we still have to create a dummy depfile, to avoid errors with the
+# Makefile "include basename.Plo" scheme.
+make_dummy_depfile ()
+{
+  echo "#dummy" > "$depfile"
+}
+
+# Factor out some common post-processing of the generated depfile.
+# Requires the auxiliary global variable '$tmpdepfile' to be set.
+aix_post_process_depfile ()
+{
+  # If the compiler actually managed to produce a dependency file,
+  # post-process it.
+  if test -f "$tmpdepfile"; then
+    # Each line is of the form 'foo.o: dependency.h'.
+    # Do two passes, one to just change these to
+    #   $object: dependency.h
+    # and one to simply output
+    #   dependency.h:
+    # which is needed to avoid the deleted-header problem.
+    { sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile"
+      sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile"
+    } > "$depfile"
+    rm -f "$tmpdepfile"
+  else
+    make_dummy_depfile
+  fi
+}
+
+# A tabulation character.
+tab='	'
+# A newline character.
+nl='
+'
+# Character ranges might be problematic outside the C locale.
+# These definitions help.
+upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ
+lower=abcdefghijklmnopqrstuvwxyz
+digits=0123456789
+alpha=${upper}${lower}
+
+if test -z "$depmode" || test -z "$source" || test -z "$object"; then
+  echo "depcomp: Variables source, object and depmode must be set" 1>&2
+  exit 1
+fi
+
+# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
+depfile=${depfile-`echo "$object" |
+  sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
+tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
+
+rm -f "$tmpdepfile"
+
+# Avoid interferences from the environment.
+gccflag= dashmflag=
+
+# Some modes work just like other modes, but use different flags.  We
+# parameterize here, but still list the modes in the big case below,
+# to make depend.m4 easier to write.  Note that we *cannot* use a case
+# here, because this file can only contain one case statement.
+if test "$depmode" = hp; then
+  # HP compiler uses -M and no extra arg.
+  gccflag=-M
+  depmode=gcc
+fi
+
+if test "$depmode" = dashXmstdout; then
+  # This is just like dashmstdout with a different argument.
+  dashmflag=-xM
+  depmode=dashmstdout
+fi
+
+cygpath_u="cygpath -u -f -"
+if test "$depmode" = msvcmsys; then
+  # This is just like msvisualcpp but w/o cygpath translation.
+  # Just convert the backslash-escaped backslashes to single forward
+  # slashes to satisfy depend.m4
+  cygpath_u='sed s,\\\\,/,g'
+  depmode=msvisualcpp
+fi
+
+if test "$depmode" = msvc7msys; then
+  # This is just like msvc7 but w/o cygpath translation.
+  # Just convert the backslash-escaped backslashes to single forward
+  # slashes to satisfy depend.m4
+  cygpath_u='sed s,\\\\,/,g'
+  depmode=msvc7
+fi
+
+if test "$depmode" = xlc; then
+  # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information.
+  gccflag=-qmakedep=gcc,-MF
+  depmode=gcc
+fi
+
+case "$depmode" in
+gcc3)
+## gcc 3 implements dependency tracking that does exactly what
+## we want.  Yay!  Note: for some reason libtool 1.4 doesn't like
+## it if -MD -MP comes after the -MF stuff.  Hmm.
+## Unfortunately, FreeBSD c89 acceptance of flags depends upon
+## the command line argument order; so add the flags where they
+## appear in depend2.am.  Note that the slowdown incurred here
+## affects only configure: in makefiles, %FASTDEP% shortcuts this.
+  for arg
+  do
+    case $arg in
+    -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
+    *)  set fnord "$@" "$arg" ;;
+    esac
+    shift # fnord
+    shift # $arg
+  done
+  "$@"
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  mv "$tmpdepfile" "$depfile"
+  ;;
+
+gcc)
+## Note that this doesn't just cater to obsosete pre-3.x GCC compilers.
+## but also to in-use compilers like IMB xlc/xlC and the HP C compiler.
+## (see the conditional assignment to $gccflag above).
+## There are various ways to get dependency output from gcc.  Here's
+## why we pick this rather obscure method:
+## - Don't want to use -MD because we'd like the dependencies to end
+##   up in a subdir.  Having to rename by hand is ugly.
+##   (We might end up doing this anyway to support other compilers.)
+## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
+##   -MM, not -M (despite what the docs say).  Also, it might not be
+##   supported by the other compilers which use the 'gcc' depmode.
+## - Using -M directly means running the compiler twice (even worse
+##   than renaming).
+  if test -z "$gccflag"; then
+    gccflag=-MD,
+  fi
+  "$@" -Wp,"$gccflag$tmpdepfile"
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  # The second -e expression handles DOS-style file names with drive
+  # letters.
+  sed -e 's/^[^:]*: / /' \
+      -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
+## This next piece of magic avoids the "deleted header file" problem.
+## The problem is that when a header file which appears in a .P file
+## is deleted, the dependency causes make to die (because there is
+## typically no way to rebuild the header).  We avoid this by adding
+## dummy dependencies for each header file.  Too bad gcc doesn't do
+## this for us directly.
+## Some versions of gcc put a space before the ':'.  On the theory
+## that the space means something, we add a space to the output as
+## well.  hp depmode also adds that space, but also prefixes the VPATH
+## to the object.  Take care to not repeat it in the output.
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly.  Breaking it into two sed invocations is a workaround.
+  tr ' ' "$nl" < "$tmpdepfile" \
+    | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \
+    | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+hp)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
+sgi)
+  if test "$libtool" = yes; then
+    "$@" "-Wp,-MDupdate,$tmpdepfile"
+  else
+    "$@" -MDupdate "$tmpdepfile"
+  fi
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+
+  if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files
+    echo "$object : \\" > "$depfile"
+    # Clip off the initial element (the dependent).  Don't try to be
+    # clever and replace this with sed code, as IRIX sed won't handle
+    # lines with more than a fixed number of characters (4096 in
+    # IRIX 6.2 sed, 8192 in IRIX 6.5).  We also remove comment lines;
+    # the IRIX cc adds comments like '#:fec' to the end of the
+    # dependency line.
+    tr ' ' "$nl" < "$tmpdepfile" \
+      | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' \
+      | tr "$nl" ' ' >> "$depfile"
+    echo >> "$depfile"
+    # The second pass generates a dummy entry for each header file.
+    tr ' ' "$nl" < "$tmpdepfile" \
+      | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
+      >> "$depfile"
+  else
+    make_dummy_depfile
+  fi
+  rm -f "$tmpdepfile"
+  ;;
+
+xlc)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
+aix)
+  # The C for AIX Compiler uses -M and outputs the dependencies
+  # in a .u file.  In older versions, this file always lives in the
+  # current directory.  Also, the AIX compiler puts '$object:' at the
+  # start of each line; $object doesn't have directory information.
+  # Version 6 uses the directory in both cases.
+  set_dir_from "$object"
+  set_base_from "$object"
+  if test "$libtool" = yes; then
+    tmpdepfile1=$dir$base.u
+    tmpdepfile2=$base.u
+    tmpdepfile3=$dir.libs/$base.u
+    "$@" -Wc,-M
+  else
+    tmpdepfile1=$dir$base.u
+    tmpdepfile2=$dir$base.u
+    tmpdepfile3=$dir$base.u
+    "$@" -M
+  fi
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+    exit $stat
+  fi
+
+  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+  do
+    test -f "$tmpdepfile" && break
+  done
+  aix_post_process_depfile
+  ;;
+
+tcc)
+  # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26
+  # FIXME: That version still under development at the moment of writing.
+  #        Make that this statement remains true also for stable, released
+  #        versions.
+  # It will wrap lines (doesn't matter whether long or short) with a
+  # trailing '\', as in:
+  #
+  #   foo.o : \
+  #    foo.c \
+  #    foo.h \
+  #
+  # It will put a trailing '\' even on the last line, and will use leading
+  # spaces rather than leading tabs (at least since its commit 0394caf7
+  # "Emit spaces for -MD").
+  "$@" -MD -MF "$tmpdepfile"
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  # Each non-empty line is of the form 'foo.o : \' or ' dep.h \'.
+  # We have to change lines of the first kind to '$object: \'.
+  sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile"
+  # And for each line of the second kind, we have to emit a 'dep.h:'
+  # dummy dependency, to avoid the deleted-header problem.
+  sed -n -e 's|^  *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+## The order of this option in the case statement is important, since the
+## shell code in configure will try each of these formats in the order
+## listed in this file.  A plain '-MD' option would be understood by many
+## compilers, so we must ensure this comes after the gcc and icc options.
+pgcc)
+  # Portland's C compiler understands '-MD'.
+  # Will always output deps to 'file.d' where file is the root name of the
+  # source file under compilation, even if file resides in a subdirectory.
+  # The object file name does not affect the name of the '.d' file.
+  # pgcc 10.2 will output
+  #    foo.o: sub/foo.c sub/foo.h
+  # and will wrap long lines using '\' :
+  #    foo.o: sub/foo.c ... \
+  #     sub/foo.h ... \
+  #     ...
+  set_dir_from "$object"
+  # Use the source, not the object, to determine the base name, since
+  # that's sadly what pgcc will do too.
+  set_base_from "$source"
+  tmpdepfile=$base.d
+
+  # For projects that build the same source file twice into different object
+  # files, the pgcc approach of using the *source* file root name can cause
+  # problems in parallel builds.  Use a locking strategy to avoid stomping on
+  # the same $tmpdepfile.
+  lockdir=$base.d-lock
+  trap "
+    echo '$0: caught signal, cleaning up...' >&2
+    rmdir '$lockdir'
+    exit 1
+  " 1 2 13 15
+  numtries=100
+  i=$numtries
+  while test $i -gt 0; do
+    # mkdir is a portable test-and-set.
+    if mkdir "$lockdir" 2>/dev/null; then
+      # This process acquired the lock.
+      "$@" -MD
+      stat=$?
+      # Release the lock.
+      rmdir "$lockdir"
+      break
+    else
+      # If the lock is being held by a different process, wait
+      # until the winning process is done or we timeout.
+      while test -d "$lockdir" && test $i -gt 0; do
+        sleep 1
+        i=`expr $i - 1`
+      done
+    fi
+    i=`expr $i - 1`
+  done
+  trap - 1 2 13 15
+  if test $i -le 0; then
+    echo "$0: failed to acquire lock after $numtries attempts" >&2
+    echo "$0: check lockdir '$lockdir'" >&2
+    exit 1
+  fi
+
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  # Each line is of the form `foo.o: dependent.h',
+  # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
+  # Do two passes, one to just change these to
+  # `$object: dependent.h' and one to simply `dependent.h:'.
+  sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
+  # Some versions of the HPUX 10.20 sed can't process this invocation
+  # correctly.  Breaking it into two sed invocations is a workaround.
+  sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \
+    | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+hp2)
+  # The "hp" stanza above does not work with aCC (C++) and HP's ia64
+  # compilers, which have integrated preprocessors.  The correct option
+  # to use with these is +Maked; it writes dependencies to a file named
+  # 'foo.d', which lands next to the object file, wherever that
+  # happens to be.
+  # Much of this is similar to the tru64 case; see comments there.
+  set_dir_from  "$object"
+  set_base_from "$object"
+  if test "$libtool" = yes; then
+    tmpdepfile1=$dir$base.d
+    tmpdepfile2=$dir.libs/$base.d
+    "$@" -Wc,+Maked
+  else
+    tmpdepfile1=$dir$base.d
+    tmpdepfile2=$dir$base.d
+    "$@" +Maked
+  fi
+  stat=$?
+  if test $stat -ne 0; then
+     rm -f "$tmpdepfile1" "$tmpdepfile2"
+     exit $stat
+  fi
+
+  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
+  do
+    test -f "$tmpdepfile" && break
+  done
+  if test -f "$tmpdepfile"; then
+    sed -e "s,^.*\.[$lower]*:,$object:," "$tmpdepfile" > "$depfile"
+    # Add 'dependent.h:' lines.
+    sed -ne '2,${
+               s/^ *//
+               s/ \\*$//
+               s/$/:/
+               p
+             }' "$tmpdepfile" >> "$depfile"
+  else
+    make_dummy_depfile
+  fi
+  rm -f "$tmpdepfile" "$tmpdepfile2"
+  ;;
+
+tru64)
+  # The Tru64 compiler uses -MD to generate dependencies as a side
+  # effect.  'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'.
+  # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
+  # dependencies in 'foo.d' instead, so we check for that too.
+  # Subdirectories are respected.
+  set_dir_from  "$object"
+  set_base_from "$object"
+
+  if test "$libtool" = yes; then
+    # Libtool generates 2 separate objects for the 2 libraries.  These
+    # two compilations output dependencies in $dir.libs/$base.o.d and
+    # in $dir$base.o.d.  We have to check for both files, because
+    # one of the two compilations can be disabled.  We should prefer
+    # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
+    # automatically cleaned when .libs/ is deleted, while ignoring
+    # the former would cause a distcleancheck panic.
+    tmpdepfile1=$dir$base.o.d          # libtool 1.5
+    tmpdepfile2=$dir.libs/$base.o.d    # Likewise.
+    tmpdepfile3=$dir.libs/$base.d      # Compaq CCC V6.2-504
+    "$@" -Wc,-MD
+  else
+    tmpdepfile1=$dir$base.d
+    tmpdepfile2=$dir$base.d
+    tmpdepfile3=$dir$base.d
+    "$@" -MD
+  fi
+
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+    exit $stat
+  fi
+
+  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+  do
+    test -f "$tmpdepfile" && break
+  done
+  # Same post-processing that is required for AIX mode.
+  aix_post_process_depfile
+  ;;
+
+msvc7)
+  if test "$libtool" = yes; then
+    showIncludes=-Wc,-showIncludes
+  else
+    showIncludes=-showIncludes
+  fi
+  "$@" $showIncludes > "$tmpdepfile"
+  stat=$?
+  grep -v '^Note: including file: ' "$tmpdepfile"
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  # The first sed program below extracts the file names and escapes
+  # backslashes for cygpath.  The second sed program outputs the file
+  # name when reading, but also accumulates all include files in the
+  # hold buffer in order to output them again at the end.  This only
+  # works with sed implementations that can handle large buffers.
+  sed < "$tmpdepfile" -n '
+/^Note: including file:  *\(.*\)/ {
+  s//\1/
+  s/\\/\\\\/g
+  p
+}' | $cygpath_u | sort -u | sed -n '
+s/ /\\ /g
+s/\(.*\)/'"$tab"'\1 \\/p
+s/.\(.*\) \\/\1:/
+H
+$ {
+  s/.*/'"$tab"'/
+  G
+  p
+}' >> "$depfile"
+  echo >> "$depfile" # make sure the fragment doesn't end with a backslash
+  rm -f "$tmpdepfile"
+  ;;
+
+msvc7msys)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
+#nosideeffect)
+  # This comment above is used by automake to tell side-effect
+  # dependency tracking mechanisms from slower ones.
+
+dashmstdout)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the preprocessed file to stdout, regardless of -o.
+  "$@" || exit $?
+
+  # Remove the call to Libtool.
+  if test "$libtool" = yes; then
+    while test "X$1" != 'X--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+
+  # Remove '-o $object'.
+  IFS=" "
+  for arg
+  do
+    case $arg in
+    -o)
+      shift
+      ;;
+    $object)
+      shift
+      ;;
+    *)
+      set fnord "$@" "$arg"
+      shift # fnord
+      shift # $arg
+      ;;
+    esac
+  done
+
+  test -z "$dashmflag" && dashmflag=-M
+  # Require at least two characters before searching for ':'
+  # in the target name.  This is to cope with DOS-style filenames:
+  # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise.
+  "$@" $dashmflag |
+    sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile"
+  rm -f "$depfile"
+  cat < "$tmpdepfile" > "$depfile"
+  # Some versions of the HPUX 10.20 sed can't process this sed invocation
+  # correctly.  Breaking it into two sed invocations is a workaround.
+  tr ' ' "$nl" < "$tmpdepfile" \
+    | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
+    | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+dashXmstdout)
+  # This case only exists to satisfy depend.m4.  It is never actually
+  # run, as this mode is specially recognized in the preamble.
+  exit 1
+  ;;
+
+makedepend)
+  "$@" || exit $?
+  # Remove any Libtool call
+  if test "$libtool" = yes; then
+    while test "X$1" != 'X--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+  # X makedepend
+  shift
+  cleared=no eat=no
+  for arg
+  do
+    case $cleared in
+    no)
+      set ""; shift
+      cleared=yes ;;
+    esac
+    if test $eat = yes; then
+      eat=no
+      continue
+    fi
+    case "$arg" in
+    -D*|-I*)
+      set fnord "$@" "$arg"; shift ;;
+    # Strip any option that makedepend may not understand.  Remove
+    # the object too, otherwise makedepend will parse it as a source file.
+    -arch)
+      eat=yes ;;
+    -*|$object)
+      ;;
+    *)
+      set fnord "$@" "$arg"; shift ;;
+    esac
+  done
+  obj_suffix=`echo "$object" | sed 's/^.*\././'`
+  touch "$tmpdepfile"
+  ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
+  rm -f "$depfile"
+  # makedepend may prepend the VPATH from the source file name to the object.
+  # No need to regex-escape $object, excess matching of '.' is harmless.
+  sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile"
+  # Some versions of the HPUX 10.20 sed can't process the last invocation
+  # correctly.  Breaking it into two sed invocations is a workaround.
+  sed '1,2d' "$tmpdepfile" \
+    | tr ' ' "$nl" \
+    | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
+    | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile" "$tmpdepfile".bak
+  ;;
+
+cpp)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the preprocessed file to stdout.
+  "$@" || exit $?
+
+  # Remove the call to Libtool.
+  if test "$libtool" = yes; then
+    while test "X$1" != 'X--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+
+  # Remove '-o $object'.
+  IFS=" "
+  for arg
+  do
+    case $arg in
+    -o)
+      shift
+      ;;
+    $object)
+      shift
+      ;;
+    *)
+      set fnord "$@" "$arg"
+      shift # fnord
+      shift # $arg
+      ;;
+    esac
+  done
+
+  "$@" -E \
+    | sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
+             -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
+    | sed '$ s: \\$::' > "$tmpdepfile"
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  cat < "$tmpdepfile" >> "$depfile"
+  sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+msvisualcpp)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the preprocessed file to stdout.
+  "$@" || exit $?
+
+  # Remove the call to Libtool.
+  if test "$libtool" = yes; then
+    while test "X$1" != 'X--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+
+  IFS=" "
+  for arg
+  do
+    case "$arg" in
+    -o)
+      shift
+      ;;
+    $object)
+      shift
+      ;;
+    "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
+        set fnord "$@"
+        shift
+        shift
+        ;;
+    *)
+        set fnord "$@" "$arg"
+        shift
+        shift
+        ;;
+    esac
+  done
+  "$@" -E 2>/dev/null |
+  sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile"
+  echo "$tab" >> "$depfile"
+  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+msvcmsys)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
+none)
+  exec "$@"
+  ;;
+
+*)
+  echo "Unknown depmode $depmode" 1>&2
+  exit 1
+  ;;
+esac
+
+exit 0
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC"
+# time-stamp-end: "; # UTC"
+# End:

doc/Makefile.am

@@ -0,0 +1,2 @@
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+man5_MANS = vchanger.conf.5

doc/Makefile.in

@@ -0,0 +1,509 @@
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+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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+distdir: $(DISTFILES)
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+	  fi; \
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+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:

doc/example-vchanger-udev.rules

@@ -0,0 +1,5 @@
+# This file contains udev rules for automounting drives assigned to vchanger
+#
+# Rules for magazine 0 (uuid:7b4526c4-d8e9-48ba-b227-f67f855a0dc7)
+ACTION=="add",SUBSYSTEM=="block", ENV{ID_FS_UUID}=="7b4526c4-d8e9-48ba-b227-f67f855a0dc7", RUN+="/usr/libexec/vchanger/vchanger-launch-mount.sh 7b4526c4-d8e9-48ba-b227-f67f855a0dc7"
+ACTION=="remove",SUBSYSTEM=="block", ENV{ID_FS_UUID}=="7b4526c4-d8e9-48ba-b227-f67f855a0dc7", RUN+="/usr/libexec/vchanger/vchanger-launch-umount.sh 7b4526c4-d8e9-48ba-b227-f67f855a0dc7"

doc/vchanger-example.conf

@@ -0,0 +1,75 @@
+# Example vchanger 1.0.0 config file
+
+#
+# Storage Resource     Name of the Storage resource defined in bacula-dir.conf
+#                      that is associated with this changer.
+#                      [Default: 'vchanger' ]
+#Storage Resource = "vchanger"
+
+#
+# User                 User to run as when invoked by root. This must be the
+#                      owner of the volume files controlled by this changer, and
+#                      so will need to be the same user that bacula-sd runs as.
+#                      [Default: none ]
+User = bacula
+
+#
+# Group                Group to run as when invoked by root. This should be the
+#                      owner group of the volume files controlled by this changer,
+#                      and should also be the default group pf the user that
+#                      bacula-sd runs as.
+#                      [Default: none ]
+group = tape
+
+#
+# Work Dir             Directory where virtual drive and magazine state information
+#                      and symlinks for this changer are stored.
+#                      [Default: /var/spool/vchanger/[StorageResource] ]
+#work dir = "/var/spool/vchanger/vcahnger"
+
+#
+# Logfile              Path to log file for this changer.
+#                      [Default: /var/log/vchanger/[StorageResource].log ]
+#logfile = "/var/log/vchanger/vchanger.log"
+
+#
+# Log Level            Sets the level of detail being logged. An integer value from
+#                      0-7 is expected, where 7 logs the most detail. The levels
+#                      correspond to LOG_EMERG - LOG_DEBUG. (See man 3 syslog)
+#                      [Default: 3 (LOG_ERR) ]
+#log_level = 3
+
+#
+# bconsole             Sets the path to the bconsole binary that vchanger will run
+#                      in order to send 'update slots' and 'label barcodes' commands
+#                      to Bacula. To disable sending commands to Bacula, set
+#                      bconsole="".
+#                      [Default: "/usr/sbin/bconsole" ]
+#bconsole = "/usr/sbin/bconsole"
+
+#
+# bconsole config      Path to the config file bconsole will use when vchanger
+#                      invokes bconsole. By default, bconsole will be invoked
+#                      without the -c flag.
+#                      [Default: none ]
+#bconsole config = /etc/bacula/bconsole.conf
+
+#
+# Default Pool         Name of the pool that new volumes created by vcahnger
+#                      should be placed into when using bconsole to send a
+#                      'label barcodes' command.
+#                      [Default: "Scratch" ]
+#default pool = "Scratch"
+
+#
+# Magazine             [Required] Gives the list of magazines known to this changer.
+#                      One or more magazine directives must be specified. A magazine
+#                      may be specified as either a directory path or as the UUID
+#                      of a filesystem partition. A magazine is specified by UUID
+#                      by prefixing the string "UUID:" to the filesystem's UUID.
+#                      For magazines specified by UUID, the mountpoint of the
+#                      filesystem will be queried from the system. Note that vchanger
+#                      does not attempt to mount the filesystem.
+#                      [Default: none ]
+#magazine = "uuid:4fcb1422-f15c-4d7a-8a32-a4dcc0af5e00"
+#Magazine = "/mnt/backup2"

doc/vchanger.8

@@ -0,0 +1,206 @@
+'\" t
+.\"     Title: vchanger
+.\"    Author: Josh Fisher <jfisher@jaybus.com>
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\"      Date: 06/03/2015
+.\"    Manual: vchanger Manual
+.\"    Source: vchanger 1.0.1
+.\"  Language: English
+.\"
+.TH "VCHANGER" "8" "06/03/2015" "vchanger 1\&.0\&.1" "vchanger Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+vchanger \- Virtual disk\-based autochanger for Bacula network backup system
+.SH "SYNOPSIS"
+.sp
+\fBvchanger\fR [\fIOptions\fR] config command [slot] [device] [drive]
+.sp
+\fBvchanger\fR [\fIOptions\fR] config CREATEVOLS mag_ndx count [start]
+.sp
+\fBvchanger\fR [\fIOptions\fR] config LISTMAGS
+.sp
+\fBvchanger\fR [\fIOptions\fR] config REFRESH
+.SH "DESCRIPTION"
+.sp
+The \fBvchanger(8)\fR utility is used to emulate and control a virtual autochanger within the Bacula network backup system environment\&. Backup volumes stored on multiple disk filesystems are mapped to a single set of virtual slots, allowing an unlimited number of virtual drives for concurrent backup jobs and easy, unlimited scaling to any size by simply adding additional disks/filesystems,
+.sp
+Vchanger is primarily deigned for use with removable disk drives\&. Its ability to interact with Bacula and determine removable drive mount points through udev allow for plug\-n\-play operation when attaching and detaching removable disk drives\&.
+.sp
+The first argument, \fIconfig\fR, is required amd specifies the path to the \fBvchanger\&.conf(5)\fR configuration file of the autochanger to be commanded\&.
+.sp
+The second argument, \fIcommand\fR, is the Bacula Autochanger Interface command to perform\&.
+.sp
+The third argument, \fIslot\fR, is required for the LOAD, LOADED, and UNLOAD commands and gives the slot number of the volume to act upon\&.
+.sp
+The fourth argument, \fIdevice\fR, is required for the LOAD, LOADED, and UNLOAD commands\&. It normally specifies the device node of a tape drive for tape autochangers\&. For vcahnger, it is only required as a place holder, and its value is ignored\&.
+.sp
+The fifth argument, \fIdrive\fR, is required for the LOAD, LOADED, and UNLOAD commands and gives the zero\-based drive number to act upon\&.
+.sp
+Vchanger implements the commands defined by the Bacula Autochanger Interface specification\&. The following commands are supported\&.
+.PP
+\fBLIST\fR
+.RS 4
+List slots, one line each, in the format slot:label\&.
+.RE
+.PP
+\fBLOAD\fR \fIslot\fR \fIdevice\fR \fIdrive\fR
+.RS 4
+Load the volume in slot
+\fIslot\fR
+into drive
+\fIdrive\fR\&.
+.RE
+.PP
+\fBLOADED\fR \fIslot\fR \fIdevice\fR \fIdrive\fR
+.RS 4
+Print the slot number currently loaded into drive
+\fIdrive\fR, or print
+\fI0\fR
+if the drive is unloaded\&.
+.RE
+.PP
+\fBSLOTS\fR
+.RS 4
+Print the number of slots\&.
+.RE
+.PP
+\fBUNLOAD\fR \fIslot\fR \fIdevice\fR \fIdrive\fR
+.RS 4
+Unload the volume currently loaded in drive
+\fIdrive\fR\&.
+.RE
+.sp
+Vchanger also implements the following undocumented comands
+.PP
+\fBLISTALL\fR
+.RS 4
+List drive status followed by slot status, one line for each drive or slot, in the format type:number:status:label, where
+\fItype\fR
+is D for a drive or S for a slot,
+\fInumber\fR
+is the drive or slot number,
+\fIstatus\fR
+is E for empty or F for full, and
+\fIlabel\fR
+is the volume label (barcode)\&.
+.RE
+.sp
+Additionally, the following extended commands are supported\&.
+.PP
+\fBCREATEVOLS\fR \fImag_ndx\fR \fIcount\fR \fI[start]\fR
+.RS 4
+Create
+\fIcount\fR
+volume files on the magazine indexed by
+\fImag_ndx\fR\&. Magazines are directories and/or filesystems that have been defined in the
+\fBvchanger(5)\fR
+configuration file given by
+\fIconfig\fR\&. The magazine index is based on the order in which the Magazine directives appear in the configuration file, where index zero is the first occurrence\&. Optionally,
+\fIstart\fR
+specifies the minimum integer uniqueness number to append to a prefix string when generating filenames for the created volume files\&. The default is to use a uniqueness number greater than highest number currently used for any volume file on the selected magazine\&.
+.RE
+.PP
+\fBLISTMAGS\fR
+.RS 4
+List the status of all assigned magazines (directories and filesystems), one per line, in the format mag:count:start:mnt, where
+\fImag\fR
+is zero\-based index of the magazines specified in configuration file
+\fIconfig\fR,
+\fIcount\fR
+is the number of volume files on that magazine,
+\fIstart\fR
+is the virtual slot number of the beginning of the range of slots mapped to the magazine\(cqs volume files, and
+\fImnt\fR
+is the magazine\(cqs directory/mountpoint if mounted, or blank if not currently mounted\&.
+.RE
+.PP
+\fBREFRESH\fR
+.RS 4
+Refresh state information for the autochanger defined by the configuration file
+\fIconfig\fR, issuing an
+\fIupdate slots\fR
+command to Bacula if required\&.
+.RE
+.sp
+\fBBacula Interaction\fR
+.sp
+By default, vcahgner will invoke bconsole and issue commands to Bacula when certain operator actions are needed\&. When anything happens that changes the current set of volume files being used, vchanger will invoke bconsole and issue an \fIupdate slots\fR command\&. For example, when the operator attaches a removable drive defined as one of the changer\(cqs magazines, the volume files on the removable drive must be mapped to virtual slots\&. Since the volume\-to\-slot mapping will have changed, Bacula will need to be informed of the change via the \fIupdate slots\fR command\&. The \fBREFRESH\fR command can be invoked to force vchanger to update state info and trigger \fIupdate slots\fR if needed\&.
+.sp
+Additionally, when new volumes are created with the \fBCREATEVOLS\fR command, vchanger will invoke bconsole and issue a \fIlabel barcodes\fR command to write volume labels on the newly created volume files\&.
+.SH "COMMAND LINE OPTIONS"
+.PP
+\fB\-u, \-\-user\fR=\fIuid\fR
+.RS 4
+Override the default user to run as when invoked by root\&. The default is normally specified in the configuration file given by
+\fIconfig\fR\&.
+.RE
+.PP
+\fB\-g, \-\-group\fR=\fIgid\fR
+.RS 4
+Override the default group to run as when invoked by root\&. The default is normally specified in the configuration file given by
+\fIconfig\fR\&.
+.RE
+.PP
+\fB\-\-pool\fR=\fIpool\fR
+.RS 4
+Overrides the name of the pool into which volumes created by the CREATEVOLS command will be placed when vchanger is configured to label new volumes by sending Bacula a
+\fIlabel barcodes\fR
+command\&. The default is given by the
+\fIDefault Pool\fR
+setting in the configuration file\&.
+.RE
+.PP
+\fB\-l, \-\-label\fR=\fIprefix\fR
+.RS 4
+Overrides the default volume label prefix when generating names for new volume files created by the CREATEVOLS command\&. The default is
+\fIname_ndx\fR, where
+\fIname\fR
+is the autochanger name and
+\fIndx\fR
+is the magazine index\&.
+.RE
+.PP
+\fB\-\-help\fR
+.RS 4
+Displays command help for the vchanger command\&.
+.RE
+.PP
+\fB\-\-version\fR
+.RS 4
+Displays vchanger version information\&.
+.RE
+.SH "NOTES"
+.sp
+See the vchangerHowto\&.html file included in the doc directory of the source distribution for more detailed documentation\&.
+.SH "SEE ALSO"
+.sp
+\fBvchanger\&.conf(5)\fR
+.SH "COPYRIGHT"
+.sp
+Copyright 2006\-2015 Josh Fisher
+.sp
+This is free software; See the source for copying conditions\&. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE\&.
+.SH "AUTHOR"
+.PP
+\fBJosh Fisher\fR <\&jfisher@jaybus\&.com\&>
+.RS 4
+Author.
+.RE

doc/vchanger.8.asciidoc

@@ -0,0 +1,180 @@
+VCHANGER(8)
+===========
+Josh Fisher <jfisher@jaybus.com>
+:doctype: manpage
+:man source:   vchanger
+:man version:  1.0.1
+:man manual:   vchanger Manual
+
+NAME
+----
+vchanger - Virtual disk-based autochanger for Bacula network backup system 
+
+
+SYNOPSIS
+--------
+*vchanger* ['Options'] config command [slot] [device] [drive]
+
+*vchanger* ['Options'] config CREATEVOLS mag_ndx count [start]
+
+*vchanger* ['Options'] config LISTMAGS
+
+*vchanger* ['Options'] config REFRESH
+
+
+DESCRIPTION
+-----------
+The *vchanger(8)* utility is used to emulate and control a virtual
+autochanger within the Bacula network backup system environment.
+Backup volumes stored on multiple disk filesystems are mapped to a
+single set of virtual slots, allowing an unlimited number of virtual
+drives for concurrent backup jobs and easy, unlimited scaling to any
+size by simply adding additional disks/filesystems, 
+
+Vchanger is primarily deigned for use with removable disk drives. Its
+ability to interact with Bacula and determine removable drive mount
+points through udev allow for plug-n-play operation when attaching
+and detaching removable disk drives.
+
+The first argument, 'config', is required amd specifies the path to the
+*vchanger.conf(5)* configuration file of the autochanger to be
+commanded.
+
+The second argument, 'command', is the Bacula Autochanger Interface command
+to perform.
+
+The third argument, 'slot', is required for the LOAD, LOADED, and UNLOAD
+commands and gives the slot number of the volume to act upon.
+
+The fourth argument, 'device', is required for the LOAD, LOADED, and UNLOAD
+commands. It normally specifies the device node of a tape drive for tape
+autochangers. For vcahnger, it is only required as a place holder, and its
+value is ignored.
+
+The fifth argument, 'drive', is required for the LOAD, LOADED, and UNLOAD
+commands and gives the zero-based drive number to act upon.
+
+Vchanger implements the commands defined by the Bacula Autochanger
+Interface specification. The following commands are supported.
+
+*LIST*::
+	List slots, one line each, in the format slot:label.
+
+*LOAD* 'slot' 'device' 'drive'::
+	Load the volume in slot 'slot' into drive 'drive'.
+
+*LOADED* 'slot' 'device' 'drive'::
+	Print the slot number currently loaded into drive 'drive', or print
+	'0' if the drive is unloaded.
+	
+*SLOTS*::
+	Print the number of slots.
+
+*UNLOAD* 'slot' 'device' 'drive'::
+	Unload the volume currently loaded in drive 'drive'.
+	
+Vchanger also implements the following undocumented comands
+
+*LISTALL*::
+	List drive status followed by slot status, one line for each
+	drive or slot, in the format type:number:status:label, where
+	'type' is D for a drive or S for a slot, 'number' is the drive
+	or slot number, 'status' is E for empty or F for full, and
+	'label' is the volume label (barcode).
+
+Additionally, the following extended commands are supported.
+
+*CREATEVOLS* 'mag_ndx' 'count' '[start]'::
+	Create 'count' volume files on the magazine indexed by 'mag_ndx'.
+	Magazines are directories and/or filesystems that have been
+	defined in the *vchanger(5)* configuration file given by 'config'.
+	The magazine index is based on the order in which the Magazine
+	directives appear in the configuration file, where index zero is
+	the	first occurrence. Optionally, 'start' specifies the minimum
+	integer uniqueness number to append to a prefix string when
+	generating filenames for the created volume files. The default
+	is to use a uniqueness number greater than highest number
+	currently used for any volume file on the selected magazine. 
+
+*LISTMAGS*::
+	List the status of all assigned magazines (directories and
+	filesystems), one per line, in the format mag:count:start:mnt,
+	where 'mag' is zero-based index of the magazines specified in
+	configuration file 'config', 'count' is the number of volume
+	files on that magazine, 'start' is the virtual slot number
+	of the beginning of the range of slots mapped to the magazine's
+	volume files, and 'mnt' is the magazine's directory/mountpoint
+	if mounted, or blank if not currently mounted.
+
+*REFRESH*::
+	Refresh state information for the autochanger defined by the
+	configuration file 'config', issuing an 'update slots' command to
+	Bacula if required.
+
+*Bacula Interaction*
+
+By default, vcahgner will invoke bconsole and issue commands to Bacula
+when certain operator actions are needed. When anything happens that
+changes the current set of volume files being used, vchanger will
+invoke bconsole and issue an 'update slots' command. For example,
+when the operator attaches a removable drive defined as one of the
+changer's magazines, the volume files on the removable drive must be
+mapped to virtual slots. Since the volume-to-slot mapping will have
+changed, Bacula will need to be informed of the change via the
+'update slots' command. The *REFRESH* command can be invoked to force
+vchanger to update state info and trigger 'update slots' if needed.
+
+Additionally, when new volumes are created with the *CREATEVOLS* command,
+vchanger will invoke bconsole and issue a 'label barcodes' command to
+write volume labels on the newly created volume files.
+
+COMMAND LINE OPTIONS
+--------------------
+
+*-u, --user*='uid'::
+    Override the default user to run as when invoked by root. The default
+    is normally specified in the configuration file given by 'config'.
+
+*-g, --group*='gid'::
+    Override the default group to run as when invoked by root. The default
+    is normally specified in the configuration file given by 'config'.
+
+*--pool*='pool'::
+    Overrides the name of the pool into which volumes created by the
+    CREATEVOLS command will be placed when vchanger is configured to
+	label new volumes by sending Bacula a 'label barcodes' command. The
+	default is given by the 'Default Pool' setting in the configuration
+	file.
+
+*-l, --label*='prefix'::
+    Overrides the default volume label prefix when generating names	for
+	new volume files created by the CREATEVOLS command. The default is
+	'name_ndx', where 'name' is the autochanger name and 'ndx' is the
+	magazine index.
+    
+*--help*::
+    Displays command help for the vchanger command.
+
+*--version*::
+    Displays vchanger version information.
+
+
+NOTES
+-----
+See the vchangerHowto.html file included in the doc directory of the
+source distribution for more detailed documentation.
+
+
+SEE ALSO
+--------
+*vchanger.conf(5)*
+
+
+COPYRIGHT
+---------
+Copyright 2006-2015 Josh Fisher
+
+This is free software;
+See the source for copying conditions.
+There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
+PARTICULAR PURPOSE.

doc/vchanger.conf.5

@@ -0,0 +1,145 @@
+'\" t
+.\"     Title: vchanger.conf
+.\"    Author: Josh Fisher <jfisher@jaybus.com>
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\"      Date: 06/03/2015
+.\"    Manual: vchanger Manual
+.\"    Source: vchanger.conf 1.0.1
+.\"  Language: English
+.\"
+.TH "VCHANGER\&.CONF" "5" "06/03/2015" "vchanger\&.conf 1\&.0\&.1" "vchanger Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+vchanger.conf \- configuration file for *vchanger(8)*
+.SH "SYNOPSIS"
+.sp
+/etc/vchanger/vchanger\&.conf
+.SH "DESCRIPTION"
+.sp
+\fBvchanger(8)\fR is passed the path to a configuration file as its first positional parameter\&. The file contains keyword\-value pairs, specified by the free\-form syntax \fIkeyword\fR = \fIvalue\fR\&. Keywords are case\-insensitive and embedded whitespace is ignored\&. For example, "LOGLEVEL" is equivalent to "Log Level"\&. Values are case\-sensitive and embedded whitespace is preserved, however leading and trailing whitespace is ignored\&. Values may be one of the following types:
+.PP
+BOOLEAN
+.RS 4
+The case insensitive strings "true", "yes", and "1" are accepted as a true value, and "false", "no", and "0" as a false value\&.
+.RE
+.PP
+INTEGER
+.RS 4
+A numeric integer value
+.RE
+.PP
+PATH
+.RS 4
+A filesystem path\&. If the path does not begin with a
+\fI\*(Aq/\fR\*(Aq character, then the path is considered a relative path\&. The directory to which the path is relative is described for the relevant keyword in the
+\fBCONFIGURATION SETTINGS\fR
+section\&.
+.RE
+.PP
+STRING
+.RS 4
+A text string\&. The string may be enclosed in double quotes\&. A quoted string may also contain escape sequences\&. An escape sequence begins with the back slash character \(oq\e\(cq\&. Valid escape sequences are \ea, \eb, \en, \er, \et, \ev, \e\e, and \e", and are interpreted as in the C language\&.
+.RE
+.SH "CONFIGURATION SETTINGS"
+.PP
+\fBbconsole\fR = \fIPATH\fR
+.RS 4
+Specifies the path to the bconsole utility used to interface with the Bacula console\&. If given as a relative path, standard shell path search semantics apply\&. Specifying the empty string "" disables the sending of commands to Bacula\&. The default is "bconsole"\&.
+.RE
+.PP
+\fBbconsole config\fR = \fIPATH\fR
+.RS 4
+Specifies the path to the bconsole configuration file to use when invoking bconsole\&. The path is passed to bconsole using its \-c flag\&. If the empty string "" is specified, then bconsole is invoked without the \-c flag\&. The default is ""\&.
+.RE
+.PP
+\fBDefault Pool\fR = \fISTRING\fR
+.RS 4
+Specifies the name of the pool into which newly created volumes should be placed when labeling the new volumes via bconsole\&. The default is "Scratch"\&.
+.RE
+.PP
+\fBGroup\fR = \fISTRING\fR
+.RS 4
+Specifies the group that
+\fBvchanger(8)\fR
+should run as when invoked by the root user\&. The default \-s "tape"\&.
+.RE
+.PP
+\fBLogfile\fR = \fIPATH\fR
+.RS 4
+Specifies the path to the vchanger logfile\&. If a relative path is specified, then it is relative to the directory defined by the
+\fBWork Dir\fR
+keyword\&. The default is a file name that is the string "\&.conf" appended to the value of the
+\fIStorage Resource\fR
+keyword in the
+\fIWork Dir\fR
+directory\&.
+.RE
+.PP
+\fBLog Level\fR = \fIINTEGER\fR
+.RS 4
+Specifies the amount of logging desired\&. The value is an integer between 0 and 7, inclusive, corresponding to the LOG_EMERG through LOG_DEBUG log levels defined in
+\fBsyslog(3)\fR\&.
+.RE
+.PP
+\fBMagazine\fR = (\fIPATH\fR or \fISTRING\fR)
+.RS 4
+Specifies a directory or file system that contains volume files that the changer specified by the
+\fBStorage Resource\fR
+keyword may use\&. this keyword may appear more than once in the configuration file in order to specify multiple magazines\&. Mounted file systems may be specified by prepending the string "UUID:" (case insensitive) to the UUID of the file system\&. Otherwise, the value specifies the path to a directory\&.
+.RE
+.PP
+\fBStorage Resource\fR = \fISTRING\fR
+.RS 4
+Specifies the name of the Storage resource, defined in the Bacula Director daemon\*(Aq\*(Aqs configuration file (bacula\-dir\&.conf), that is associated with this changer\&. The default is "vchanger"\&.
+.RE
+.PP
+\fBUser\fR = \fISTRING\fR
+.RS 4
+Specifies the user that
+\fBvchanger(8)\fR
+should run as when invoked by the root user\&. The default is "bacula"\&.
+.RE
+.PP
+\fBWork Dir\fR = \fIPATH\fR
+.RS 4
+Specifies the path to the work directory
+\fBvchanger(8)\fR
+will use for this changer\&. The default is a sub\-directory of /var/spool/vchanger named as the value of the
+\fBStorage Resource\fR
+keyword\&.
+.RE
+.SH "NOTES"
+.sp
+See the vchangerHowto\&.html file included in the doc directory of the source distribution for more detailed documentation\&.
+.SH "SEE ALSO"
+.sp
+\fBvchanger(8)\fR
+.SH "COPYRIGHT"
+.sp
+Copyright 2006\-2015 Josh Fisher
+.sp
+This is free software; See the source for copying conditions\&. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE\&.
+.SH "AUTHOR"
+.PP
+\fBJosh Fisher\fR <\&jfisher@jaybus\&.com\&>
+.RS 4
+Author.
+.RE

doc/vchanger.conf.5.asciidoc

@@ -0,0 +1,120 @@
+VCHANGER.CONF(5)
+================
+Josh Fisher <jfisher@jaybus.com>
+:doctype: manpage
+:man source:   vchanger.conf
+:man version:  1.0.1
+:man manual:   vchanger Manual
+
+NAME
+----
+vchanger.conf - configuration file for *vchanger(8)* 
+
+SYNOPSIS
+--------
+/etc/vchanger/vchanger.conf
+
+DESCRIPTION
+-----------
+*vchanger(8)* is passed the path to a configuration file as its first
+positional parameter. The file contains keyword-value pairs, specified
+by the free-form syntax 'keyword' = 'value'. Keywords are case-insensitive
+and embedded whitespace is ignored. For example, "LOGLEVEL" is equivalent
+to "Log Level". Values are case-sensitive and embedded whitespace is
+preserved, however leading and trailing whitespace is ignored. Values
+may be one of the following types:
+
+	BOOLEAN::
+		The  case insensitive strings "true", "yes", and "1" are accepted
+		as a true value, and "false", "no", and "0" as a false value.
+	INTEGER::
+		A numeric integer value
+	PATH::
+		A filesystem path. If the path does not begin with a ''/'' character,
+		then the path is considered a relative path. The directory to
+		which the path is relative is described for the relevant keyword
+		in the *CONFIGURATION SETTINGS* section.
+	STRING::
+		A text string. The string may be enclosed in double quotes. A
+		quoted  string  may  also  contain escape sequences. An escape
+		sequence begins with the back slash character `\'. Valid escape
+		sequences are \a, \b, \n, \r, \t, \v, \\, and \", and are
+		interpreted as in the C language.
+		
+CONFIGURATION SETTINGS
+----------------------
+*bconsole* = 'PATH'::
+	Specifies the path to the bconsole utility used to interface with
+	the Bacula console. If given as a relative path, standard shell
+	path search semantics apply. Specifying the empty string "" disables
+	the sending of commands to Bacula. The default is "bconsole".
+
+*bconsole config* = 'PATH'::
+	Specifies the path to the bconsole configuration file to use when
+	invoking bconsole. The path is passed to bconsole using its -c
+	flag. If the empty string "" is specified, then bconsole is invoked
+	without the -c flag. The default is "".
+	
+*Default Pool* = 'STRING'::
+	Specifies the name of the pool into which newly created volumes
+	should be placed when labeling the new volumes via bconsole.
+	The default is "Scratch".
+
+*Group* = 'STRING'::
+	Specifies the group that *vchanger(8)* should run as when invoked
+	by the root user. The default -s "tape".
+
+*Logfile* = 'PATH'::
+	Specifies the path to the vchanger logfile. If a relative path is
+	specified, then it is relative to the directory defined by the
+	*Work Dir* keyword. The default is a file name that is the string
+	".conf" appended to the value of the 'Storage Resource' keyword in
+	the 'Work Dir' directory.
+
+*Log Level* = 'INTEGER'::
+	Specifies the amount of logging desired. The value is an integer
+	between 0 and 7, inclusive, corresponding to the LOG_EMERG through
+	LOG_DEBUG log levels defined in *syslog(3)*.
+
+*Magazine* = ('PATH' or 'STRING')::
+	Specifies a directory or file system that contains volume files that
+	the changer specified by the *Storage Resource* keyword may use. this
+	keyword may appear more than once in the configuration file in order
+	to specify multiple magazines. Mounted file systems may be specified
+	by prepending the string "UUID:" (case insensitive) to the UUID of
+	the file system. Otherwise, the value specifies the path to a
+	directory.
+
+*Storage Resource* = 'STRING'::
+	Specifies the name of the Storage resource, defined in the Bacula
+	Director daemon''s configuration file (bacula-dir.conf), that is
+	associated with this changer. The default is "vchanger".
+
+*User* = 'STRING'::
+	Specifies the user that *vchanger(8)* should run as when invoked
+	by the root user. The default is "bacula".
+
+*Work Dir* = 'PATH'::
+	Specifies the path to the work directory *vchanger(8)* will use for
+	this changer. The default is a sub-directory of /var/spool/vchanger
+	named as the value of the *Storage Resource* keyword.
+	
+NOTES
+-----
+See the vchangerHowto.html file included in the doc directory of the
+source distribution for more detailed documentation.
+
+
+SEE ALSO
+--------
+*vchanger(8)*
+
+
+COPYRIGHT
+---------
+Copyright 2006-2015 Josh Fisher
+
+This is free software;
+See the source for copying conditions.
+There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
+PARTICULAR PURPOSE.

install-sh

@@ -0,0 +1,527 @@
+#!/bin/sh
+# install - install a program, script, or datafile
+
+scriptversion=2011-11-20.07; # UTC
+
+# This originates from X11R5 (mit/util/scripts/install.sh), which was
+# later released in X11R6 (xc/config/util/install.sh) with the
+# following copyright and license.
+#
+# Copyright (C) 1994 X Consortium
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to
+# deal in the Software without restriction, including without limitation the
+# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+# sell copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
+# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+# Except as contained in this notice, the name of the X Consortium shall not
+# be used in advertising or otherwise to promote the sale, use or other deal-
+# ings in this Software without prior written authorization from the X Consor-
+# tium.
+#
+#
+# FSF changes to this file are in the public domain.
+#
+# Calling this script install-sh is preferred over install.sh, to prevent
+# 'make' implicit rules from creating a file called install from it
+# when there is no Makefile.
+#
+# This script is compatible with the BSD install script, but was written
+# from scratch.
+
+nl='
+'
+IFS=" ""	$nl"
+
+# set DOITPROG to echo to test this script
+
+# Don't use :- since 4.3BSD and earlier shells don't like it.
+doit=${DOITPROG-}
+if test -z "$doit"; then
+  doit_exec=exec
+else
+  doit_exec=$doit
+fi
+
+# Put in absolute file names if you don't have them in your path;
+# or use environment vars.
+
+chgrpprog=${CHGRPPROG-chgrp}
+chmodprog=${CHMODPROG-chmod}
+chownprog=${CHOWNPROG-chown}
+cmpprog=${CMPPROG-cmp}
+cpprog=${CPPROG-cp}
+mkdirprog=${MKDIRPROG-mkdir}
+mvprog=${MVPROG-mv}
+rmprog=${RMPROG-rm}
+stripprog=${STRIPPROG-strip}
+
+posix_glob='?'
+initialize_posix_glob='
+  test "$posix_glob" != "?" || {
+    if (set -f) 2>/dev/null; then
+      posix_glob=
+    else
+      posix_glob=:
+    fi
+  }
+'
+
+posix_mkdir=
+
+# Desired mode of installed file.
+mode=0755
+
+chgrpcmd=
+chmodcmd=$chmodprog
+chowncmd=
+mvcmd=$mvprog
+rmcmd="$rmprog -f"
+stripcmd=
+
+src=
+dst=
+dir_arg=
+dst_arg=
+
+copy_on_change=false
+no_target_directory=
+
+usage="\
+Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
+   or: $0 [OPTION]... SRCFILES... DIRECTORY
+   or: $0 [OPTION]... -t DIRECTORY SRCFILES...
+   or: $0 [OPTION]... -d DIRECTORIES...
+
+In the 1st form, copy SRCFILE to DSTFILE.
+In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
+In the 4th, create DIRECTORIES.
+
+Options:
+     --help     display this help and exit.
+     --version  display version info and exit.
+
+  -c            (ignored)
+  -C            install only if different (preserve the last data modification time)
+  -d            create directories instead of installing files.
+  -g GROUP      $chgrpprog installed files to GROUP.
+  -m MODE       $chmodprog installed files to MODE.
+  -o USER       $chownprog installed files to USER.
+  -s            $stripprog installed files.
+  -t DIRECTORY  install into DIRECTORY.
+  -T            report an error if DSTFILE is a directory.
+
+Environment variables override the default commands:
+  CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
+  RMPROG STRIPPROG
+"
+
+while test $# -ne 0; do
+  case $1 in
+    -c) ;;
+
+    -C) copy_on_change=true;;
+
+    -d) dir_arg=true;;
+
+    -g) chgrpcmd="$chgrpprog $2"
+	shift;;
+
+    --help) echo "$usage"; exit $?;;
+
+    -m) mode=$2
+	case $mode in
+	  *' '* | *'	'* | *'
+'*	  | *'*'* | *'?'* | *'['*)
+	    echo "$0: invalid mode: $mode" >&2
+	    exit 1;;
+	esac
+	shift;;
+
+    -o) chowncmd="$chownprog $2"
+	shift;;
+
+    -s) stripcmd=$stripprog;;
+
+    -t) dst_arg=$2
+	# Protect names problematic for 'test' and other utilities.
+	case $dst_arg in
+	  -* | [=\(\)!]) dst_arg=./$dst_arg;;
+	esac
+	shift;;
+
+    -T) no_target_directory=true;;
+
+    --version) echo "$0 $scriptversion"; exit $?;;
+
+    --)	shift
+	break;;
+
+    -*)	echo "$0: invalid option: $1" >&2
+	exit 1;;
+
+    *)  break;;
+  esac
+  shift
+done
+
+if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
+  # When -d is used, all remaining arguments are directories to create.
+  # When -t is used, the destination is already specified.
+  # Otherwise, the last argument is the destination.  Remove it from $@.
+  for arg
+  do
+    if test -n "$dst_arg"; then
+      # $@ is not empty: it contains at least $arg.
+      set fnord "$@" "$dst_arg"
+      shift # fnord
+    fi
+    shift # arg
+    dst_arg=$arg
+    # Protect names problematic for 'test' and other utilities.
+    case $dst_arg in
+      -* | [=\(\)!]) dst_arg=./$dst_arg;;
+    esac
+  done
+fi
+
+if test $# -eq 0; then
+  if test -z "$dir_arg"; then
+    echo "$0: no input file specified." >&2
+    exit 1
+  fi
+  # It's OK to call 'install-sh -d' without argument.
+  # This can happen when creating conditional directories.
+  exit 0
+fi
+
+if test -z "$dir_arg"; then
+  do_exit='(exit $ret); exit $ret'
+  trap "ret=129; $do_exit" 1
+  trap "ret=130; $do_exit" 2
+  trap "ret=141; $do_exit" 13
+  trap "ret=143; $do_exit" 15
+
+  # Set umask so as not to create temps with too-generous modes.
+  # However, 'strip' requires both read and write access to temps.
+  case $mode in
+    # Optimize common cases.
+    *644) cp_umask=133;;
+    *755) cp_umask=22;;
+
+    *[0-7])
+      if test -z "$stripcmd"; then
+	u_plus_rw=
+      else
+	u_plus_rw='% 200'
+      fi
+      cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
+    *)
+      if test -z "$stripcmd"; then
+	u_plus_rw=
+      else
+	u_plus_rw=,u+rw
+      fi
+      cp_umask=$mode$u_plus_rw;;
+  esac
+fi
+
+for src
+do
+  # Protect names problematic for 'test' and other utilities.
+  case $src in
+    -* | [=\(\)!]) src=./$src;;
+  esac
+
+  if test -n "$dir_arg"; then
+    dst=$src
+    dstdir=$dst
+    test -d "$dstdir"
+    dstdir_status=$?
+  else
+
+    # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
+    # might cause directories to be created, which would be especially bad
+    # if $src (and thus $dsttmp) contains '*'.
+    if test ! -f "$src" && test ! -d "$src"; then
+      echo "$0: $src does not exist." >&2
+      exit 1
+    fi
+
+    if test -z "$dst_arg"; then
+      echo "$0: no destination specified." >&2
+      exit 1
+    fi
+    dst=$dst_arg
+
+    # If destination is a directory, append the input filename; won't work
+    # if double slashes aren't ignored.
+    if test -d "$dst"; then
+      if test -n "$no_target_directory"; then
+	echo "$0: $dst_arg: Is a directory" >&2
+	exit 1
+      fi
+      dstdir=$dst
+      dst=$dstdir/`basename "$src"`
+      dstdir_status=0
+    else
+      # Prefer dirname, but fall back on a substitute if dirname fails.
+      dstdir=`
+	(dirname "$dst") 2>/dev/null ||
+	expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	     X"$dst" : 'X\(//\)[^/]' \| \
+	     X"$dst" : 'X\(//\)$' \| \
+	     X"$dst" : 'X\(/\)' \| . 2>/dev/null ||
+	echo X"$dst" |
+	    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+		   s//\1/
+		   q
+		 }
+		 /^X\(\/\/\)[^/].*/{
+		   s//\1/
+		   q
+		 }
+		 /^X\(\/\/\)$/{
+		   s//\1/
+		   q
+		 }
+		 /^X\(\/\).*/{
+		   s//\1/
+		   q
+		 }
+		 s/.*/./; q'
+      `
+
+      test -d "$dstdir"
+      dstdir_status=$?
+    fi
+  fi
+
+  obsolete_mkdir_used=false
+
+  if test $dstdir_status != 0; then
+    case $posix_mkdir in
+      '')
+	# Create intermediate dirs using mode 755 as modified by the umask.
+	# This is like FreeBSD 'install' as of 1997-10-28.
+	umask=`umask`
+	case $stripcmd.$umask in
+	  # Optimize common cases.
+	  *[2367][2367]) mkdir_umask=$umask;;
+	  .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
+
+	  *[0-7])
+	    mkdir_umask=`expr $umask + 22 \
+	      - $umask % 100 % 40 + $umask % 20 \
+	      - $umask % 10 % 4 + $umask % 2
+	    `;;
+	  *) mkdir_umask=$umask,go-w;;
+	esac
+
+	# With -d, create the new directory with the user-specified mode.
+	# Otherwise, rely on $mkdir_umask.
+	if test -n "$dir_arg"; then
+	  mkdir_mode=-m$mode
+	else
+	  mkdir_mode=
+	fi
+
+	posix_mkdir=false
+	case $umask in
+	  *[123567][0-7][0-7])
+	    # POSIX mkdir -p sets u+wx bits regardless of umask, which
+	    # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
+	    ;;
+	  *)
+	    tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
+	    trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
+
+	    if (umask $mkdir_umask &&
+		exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
+	    then
+	      if test -z "$dir_arg" || {
+		   # Check for POSIX incompatibilities with -m.
+		   # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
+		   # other-writable bit of parent directory when it shouldn't.
+		   # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
+		   ls_ld_tmpdir=`ls -ld "$tmpdir"`
+		   case $ls_ld_tmpdir in
+		     d????-?r-*) different_mode=700;;
+		     d????-?--*) different_mode=755;;
+		     *) false;;
+		   esac &&
+		   $mkdirprog -m$different_mode -p -- "$tmpdir" && {
+		     ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
+		     test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
+		   }
+		 }
+	      then posix_mkdir=:
+	      fi
+	      rmdir "$tmpdir/d" "$tmpdir"
+	    else
+	      # Remove any dirs left behind by ancient mkdir implementations.
+	      rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
+	    fi
+	    trap '' 0;;
+	esac;;
+    esac
+
+    if
+      $posix_mkdir && (
+	umask $mkdir_umask &&
+	$doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
+      )
+    then :
+    else
+
+      # The umask is ridiculous, or mkdir does not conform to POSIX,
+      # or it failed possibly due to a race condition.  Create the
+      # directory the slow way, step by step, checking for races as we go.
+
+      case $dstdir in
+	/*) prefix='/';;
+	[-=\(\)!]*) prefix='./';;
+	*)  prefix='';;
+      esac
+
+      eval "$initialize_posix_glob"
+
+      oIFS=$IFS
+      IFS=/
+      $posix_glob set -f
+      set fnord $dstdir
+      shift
+      $posix_glob set +f
+      IFS=$oIFS
+
+      prefixes=
+
+      for d
+      do
+	test X"$d" = X && continue
+
+	prefix=$prefix$d
+	if test -d "$prefix"; then
+	  prefixes=
+	else
+	  if $posix_mkdir; then
+	    (umask=$mkdir_umask &&
+	     $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
+	    # Don't fail if two instances are running concurrently.
+	    test -d "$prefix" || exit 1
+	  else
+	    case $prefix in
+	      *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
+	      *) qprefix=$prefix;;
+	    esac
+	    prefixes="$prefixes '$qprefix'"
+	  fi
+	fi
+	prefix=$prefix/
+      done
+
+      if test -n "$prefixes"; then
+	# Don't fail if two instances are running concurrently.
+	(umask $mkdir_umask &&
+	 eval "\$doit_exec \$mkdirprog $prefixes") ||
+	  test -d "$dstdir" || exit 1
+	obsolete_mkdir_used=true
+      fi
+    fi
+  fi
+
+  if test -n "$dir_arg"; then
+    { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
+    { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
+    { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
+      test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
+  else
+
+    # Make a couple of temp file names in the proper directory.
+    dsttmp=$dstdir/_inst.$$_
+    rmtmp=$dstdir/_rm.$$_
+
+    # Trap to clean up those temp files at exit.
+    trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
+
+    # Copy the file name to the temp name.
+    (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
+
+    # and set any options; do chmod last to preserve setuid bits.
+    #
+    # If any of these fail, we abort the whole thing.  If we want to
+    # ignore errors from any of these, just make sure not to ignore
+    # errors from the above "$doit $cpprog $src $dsttmp" command.
+    #
+    { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
+    { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
+    { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
+    { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
+
+    # If -C, don't bother to copy if it wouldn't change the file.
+    if $copy_on_change &&
+       old=`LC_ALL=C ls -dlL "$dst"	2>/dev/null` &&
+       new=`LC_ALL=C ls -dlL "$dsttmp"	2>/dev/null` &&
+
+       eval "$initialize_posix_glob" &&
+       $posix_glob set -f &&
+       set X $old && old=:$2:$4:$5:$6 &&
+       set X $new && new=:$2:$4:$5:$6 &&
+       $posix_glob set +f &&
+
+       test "$old" = "$new" &&
+       $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
+    then
+      rm -f "$dsttmp"
+    else
+      # Rename the file to the real destination.
+      $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
+
+      # The rename failed, perhaps because mv can't rename something else
+      # to itself, or perhaps because mv is so ancient that it does not
+      # support -f.
+      {
+	# Now remove or move aside any old file at destination location.
+	# We try this two ways since rm can't unlink itself on some
+	# systems and the destination file might be busy for other
+	# reasons.  In this case, the final cleanup might fail but the new
+	# file should still install successfully.
+	{
+	  test ! -f "$dst" ||
+	  $doit $rmcmd -f "$dst" 2>/dev/null ||
+	  { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
+	    { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
+	  } ||
+	  { echo "$0: cannot unlink or rename $dst" >&2
+	    (exit 1); exit 1
+	  }
+	} &&
+
+	# Now rename the file to the real destination.
+	$doit $mvcmd "$dsttmp" "$dst"
+      }
+    fi || exit 1
+
+    trap '' 0
+  fi
+done
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC"
+# time-stamp-end: "; # UTC"
+# End:

missing

@@ -0,0 +1,215 @@
+#! /bin/sh
+# Common wrapper for a few potentially missing GNU programs.
+
+scriptversion=2012-06-26.16; # UTC
+
+# Copyright (C) 1996-2013 Free Software Foundation, Inc.
+# Originally written by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+if test $# -eq 0; then
+  echo 1>&2 "Try '$0 --help' for more information"
+  exit 1
+fi
+
+case $1 in
+
+  --is-lightweight)
+    # Used by our autoconf macros to check whether the available missing
+    # script is modern enough.
+    exit 0
+    ;;
+
+  --run)
+    # Back-compat with the calling convention used by older automake.
+    shift
+    ;;
+
+  -h|--h|--he|--hel|--help)
+    echo "\
+$0 [OPTION]... PROGRAM [ARGUMENT]...
+
+Run 'PROGRAM [ARGUMENT]...', returning a proper advice when this fails due
+to PROGRAM being missing or too old.
+
+Options:
+  -h, --help      display this help and exit
+  -v, --version   output version information and exit
+
+Supported PROGRAM values:
+  aclocal   autoconf  autoheader   autom4te  automake  makeinfo
+  bison     yacc      flex         lex       help2man
+
+Version suffixes to PROGRAM as well as the prefixes 'gnu-', 'gnu', and
+'g' are ignored when checking the name.
+
+Send bug reports to <bug-automake@gnu.org>."
+    exit $?
+    ;;
+
+  -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
+    echo "missing $scriptversion (GNU Automake)"
+    exit $?
+    ;;
+
+  -*)
+    echo 1>&2 "$0: unknown '$1' option"
+    echo 1>&2 "Try '$0 --help' for more information"
+    exit 1
+    ;;
+
+esac
+
+# Run the given program, remember its exit status.
+"$@"; st=$?
+
+# If it succeeded, we are done.
+test $st -eq 0 && exit 0
+
+# Also exit now if we it failed (or wasn't found), and '--version' was
+# passed; such an option is passed most likely to detect whether the
+# program is present and works.
+case $2 in --version|--help) exit $st;; esac
+
+# Exit code 63 means version mismatch.  This often happens when the user
+# tries to use an ancient version of a tool on a file that requires a
+# minimum version.
+if test $st -eq 63; then
+  msg="probably too old"
+elif test $st -eq 127; then
+  # Program was missing.
+  msg="missing on your system"
+else
+  # Program was found and executed, but failed.  Give up.
+  exit $st
+fi
+
+perl_URL=http://www.perl.org/
+flex_URL=http://flex.sourceforge.net/
+gnu_software_URL=http://www.gnu.org/software
+
+program_details ()
+{
+  case $1 in
+    aclocal|automake)
+      echo "The '$1' program is part of the GNU Automake package:"
+      echo "<$gnu_software_URL/automake>"
+      echo "It also requires GNU Autoconf, GNU m4 and Perl in order to run:"
+      echo "<$gnu_software_URL/autoconf>"
+      echo "<$gnu_software_URL/m4/>"
+      echo "<$perl_URL>"
+      ;;
+    autoconf|autom4te|autoheader)
+      echo "The '$1' program is part of the GNU Autoconf package:"
+      echo "<$gnu_software_URL/autoconf/>"
+      echo "It also requires GNU m4 and Perl in order to run:"
+      echo "<$gnu_software_URL/m4/>"
+      echo "<$perl_URL>"
+      ;;
+  esac
+}
+
+give_advice ()
+{
+  # Normalize program name to check for.
+  normalized_program=`echo "$1" | sed '
+    s/^gnu-//; t
+    s/^gnu//; t
+    s/^g//; t'`
+
+  printf '%s\n' "'$1' is $msg."
+
+  configure_deps="'configure.ac' or m4 files included by 'configure.ac'"
+  case $normalized_program in
+    autoconf*)
+      echo "You should only need it if you modified 'configure.ac',"
+      echo "or m4 files included by it."
+      program_details 'autoconf'
+      ;;
+    autoheader*)
+      echo "You should only need it if you modified 'acconfig.h' or"
+      echo "$configure_deps."
+      program_details 'autoheader'
+      ;;
+    automake*)
+      echo "You should only need it if you modified 'Makefile.am' or"
+      echo "$configure_deps."
+      program_details 'automake'
+      ;;
+    aclocal*)
+      echo "You should only need it if you modified 'acinclude.m4' or"
+      echo "$configure_deps."
+      program_details 'aclocal'
+      ;;
+   autom4te*)
+      echo "You might have modified some maintainer files that require"
+      echo "the 'automa4te' program to be rebuilt."
+      program_details 'autom4te'
+      ;;
+    bison*|yacc*)
+      echo "You should only need it if you modified a '.y' file."
+      echo "You may want to install the GNU Bison package:"
+      echo "<$gnu_software_URL/bison/>"
+      ;;
+    lex*|flex*)
+      echo "You should only need it if you modified a '.l' file."
+      echo "You may want to install the Fast Lexical Analyzer package:"
+      echo "<$flex_URL>"
+      ;;
+    help2man*)
+      echo "You should only need it if you modified a dependency" \
+           "of a man page."
+      echo "You may want to install the GNU Help2man package:"
+      echo "<$gnu_software_URL/help2man/>"
+    ;;
+    makeinfo*)
+      echo "You should only need it if you modified a '.texi' file, or"
+      echo "any other file indirectly affecting the aspect of the manual."
+      echo "You might want to install the Texinfo package:"
+      echo "<$gnu_software_URL/texinfo/>"
+      echo "The spurious makeinfo call might also be the consequence of"
+      echo "using a buggy 'make' (AIX, DU, IRIX), in which case you might"
+      echo "want to install GNU make:"
+      echo "<$gnu_software_URL/make/>"
+      ;;
+    *)
+      echo "You might have modified some files without having the proper"
+      echo "tools for further handling them.  Check the 'README' file, it"
+      echo "often tells you about the needed prerequisites for installing"
+      echo "this package.  You may also peek at any GNU archive site, in"
+      echo "case some other package contains this missing '$1' program."
+      ;;
+  esac
+}
+
+give_advice "$1" | sed -e '1s/^/WARNING: /' \
+                       -e '2,$s/^/         /' >&2
+
+# Propagate the correct exit status (expected to be 127 for a program
+# not found, 63 for a program that failed due to version mismatch).
+exit $st
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC"
+# time-stamp-end: "; # UTC"
+# End:

rpm/vchanger.el6.spec

@@ -0,0 +1,91 @@
+#
+#  Spec file for vchanger - RHEL 6
+#
+Summary: A virtual autochanger for Bacula
+Name: vchanger
+Version: 1.0.1
+Release: 1.el6
+License: GPLv2
+Group: System Environment/Daemons
+Source: http://sourceforge.net/projects/vchanger/files/vchanger/%{version}/vchanger-%{version}.tar.gz
+URL: http://vchanger.sourceforge.net
+Vendor: Josh Fisher.
+Packager: Josh Fisher <jfisher@jaybus.com>
+BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
+Requires(post): /bin/mkdir, /bin/chown, /usr/bin/getent, /usr/sbin/useradd, /usr/sbin/groupadd
+
+%description
+Vchanger implements a virtual autochanger for use with the Bacula open source
+network backup system. Vchanger emulates a magazine-based tape autoloader
+using disk file system mountpoints as virtual magazines and the files in
+each virtual magazine as virtual tape volumes. Vchanger is primarily
+designed to use an unlimited number of removable disk drives as an easily
+scalable virtual autochanger and allow seamless removal of backups for
+offsite storage. 
+
+%prep
+%setup -q -n %{name}
+
+%build
+CFLAGS="%{optflags} -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE" \
+%configure
+make
+
+%install
+rm -rf $RPM_BUILD_ROOT
+mkdir -p ${RPM_BUILD_ROOT}%{_bindir}
+mkdir -p ${RPM_BUILD_ROOT}%{_sysconfdir}/sysconfig
+mkdir -p ${RPM_BUILD_ROOT}%{_sysconfdir}/%{name}
+mkdir -p ${RPM_BUILD_ROOT}%{_libexecdir}/%{name}
+mkdir -p ${RPM_BUILD_ROOT}%{_mandir}/man5
+mkdir -p ${RPM_BUILD_ROOT}%{_mandir}/man8
+mkdir -p ${RPM_BUILD_ROOT}%{_docdir}/%{name}-%{version}
+mkdir -m 0770 -p ${RPM_BUILD_ROOT}%{_localstatedir}/spool/%{name}
+mkdir -m 0755 -p ${RPM_BUILD_ROOT}%{_localstatedir}/log/%{name}
+make DESTDIR=${RPM_BUILD_ROOT} install-strip
+install -m 0644 scripts/vchanger.default ${RPM_BUILD_ROOT}%{_sysconfdir}/sysconfig/vchanger
+
+%clean
+rm -rf $RPM_BUILD_ROOT
+
+%files
+%defattr(-,root,root,-)
+%{_bindir}/*
+%{_libexecdir}/%{name}/*
+%doc %{_docdir}/%{name}-%{version}/AUTHORS
+%doc %{_docdir}/%{name}-%{version}/ChangeLog
+%doc %{_docdir}/%{name}-%{version}/COPYING
+%doc %{_docdir}/%{name}-%{version}/INSTALL
+%doc %{_docdir}/%{name}-%{version}/NEWS
+%doc %{_docdir}/%{name}-%{version}/README
+%doc %{_docdir}/%{name}-%{version}/ReleaseNotes
+%doc %{_docdir}/%{name}-%{version}/vchanger-example.conf
+%doc %{_docdir}/%{name}-%{version}/example-vchanger-udev.rules
+%doc %{_docdir}/%{name}-%{version}/vchangerHowto.html
+%{_mandir}/man5/*
+%{_mandir}/man8/*
+%config(noreplace) %{_sysconfdir}/sysconfig/vchanger
+
+%post
+if [ $1 -eq 1 ] ; then
+  /usr/bin/getent group tape &>/dev/null || /usr/sbin/groupadd -r tape
+  /usr/bin/getent group bacula &>/dev/null || /usr/sbin/groupadd -r bacula
+  /usr/bin/getent passwd bacula &>/dev/null || /usr/sbin/useradd -r -g bacula -d %{_localstatedir}/spool/bacula -s /bin/bash bacula
+  if [ ! -d %{_localstatedir}/spool/vchanger ] ; then
+    /bin/mkdir -p -m 0770 %{_localstatedir}/spool/vchanger
+    /bin/chown bacula:tape %{_localstatedir}/spool/vchanger
+  fi
+  if [ ! -d %{_localstatedir}/log/vchanger ] ; then
+    /bin/mkdir -p -m 0755 %{_localstatedir}/log/vchanger
+    /bin/chown bacula:tape %{_localstatedir}/log/vchanger
+  fi
+  if [ ! -d %{_sysconfdir}/vchanger ] ; then
+    /bin/mkdir -p -m 0755 %{_sysconfdir}/vchanger
+  fi
+fi
+
+%changelog
+* Wed Jun 3 2015 Josh Fisher <jfisher@jaybus.com>
+- Updated to release 1.0.1
+* Fri Apr 3 2015 Josh Fisher <jfisher@jaybus.com>
+- Initial spec file

rpm/vchanger.el7.spec

@@ -0,0 +1,91 @@
+#
+#  Spec file for vchanger - RHEL 7
+#
+Summary: A virtual autochanger for Bacula
+Name: vchanger
+Version: 1.0.1
+Release: 1.el7
+License: GPLv2
+Group: System Environment/Daemons
+Source: http://sourceforge.net/projects/vchanger/files/vchanger/%{version}/vchanger-%{version}.tar.gz
+URL: http://vchanger.sourceforge.net
+Vendor: Josh Fisher.
+Packager: Josh Fisher <jfisher@jaybus.com>
+BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
+Requires(post): /bin/mkdir, /bin/chown, /usr/bin/getent, /usr/sbin/useradd, /usr/sbin/groupadd
+
+%description
+Vchanger implements a virtual autochanger for use with the Bacula open source
+network backup system. Vchanger emulates a magazine-based tape autoloader
+using disk file system mountpoints as virtual magazines and the files in
+each virtual magazine as virtual tape volumes. Vchanger is primarily
+designed to use an unlimited number of removable disk drives as an easily
+scalable virtual autochanger and allow seamless removal of backups for
+offsite storage. 
+
+%prep
+%setup -q -n %{name}
+
+%build
+CFLAGS="%{optflags} -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE" \
+%configure
+make
+
+%install
+rm -rf $RPM_BUILD_ROOT
+mkdir -p ${RPM_BUILD_ROOT}%{_bindir}
+mkdir -p ${RPM_BUILD_ROOT}%{_sysconfdir}/sysconfig
+mkdir -p ${RPM_BUILD_ROOT}%{_sysconfdir}/%{name}
+mkdir -p ${RPM_BUILD_ROOT}%{_libexecdir}/%{name}
+mkdir -p ${RPM_BUILD_ROOT}%{_mandir}/man5
+mkdir -p ${RPM_BUILD_ROOT}%{_mandir}/man8
+mkdir -p ${RPM_BUILD_ROOT}%{_docdir}/%{name}-%{version}
+mkdir -m 0770 -p ${RPM_BUILD_ROOT}%{_localstatedir}/spool/%{name}
+mkdir -m 0755 -p ${RPM_BUILD_ROOT}%{_localstatedir}/log/%{name}
+make DESTDIR=${RPM_BUILD_ROOT} install-strip
+install -m 0644 scripts/vchanger.default ${RPM_BUILD_ROOT}%{_sysconfdir}/sysconfig/vchanger
+
+%clean
+rm -rf $RPM_BUILD_ROOT
+
+%files
+%defattr(-,root,root,-)
+%{_bindir}/*
+%{_libexecdir}/%{name}/*
+%doc %{_docdir}/%{name}-%{version}/AUTHORS
+%doc %{_docdir}/%{name}-%{version}/ChangeLog
+%doc %{_docdir}/%{name}-%{version}/COPYING
+%doc %{_docdir}/%{name}-%{version}/INSTALL
+%doc %{_docdir}/%{name}-%{version}/NEWS
+%doc %{_docdir}/%{name}-%{version}/README
+%doc %{_docdir}/%{name}-%{version}/ReleaseNotes
+%doc %{_docdir}/%{name}-%{version}/vchanger-example.conf
+%doc %{_docdir}/%{name}-%{version}/example-vchanger-udev.rules
+%doc %{_docdir}/%{name}-%{version}/vchangerHowto.html
+%{_mandir}/man5/*
+%{_mandir}/man8/*
+%config(noreplace) %{_sysconfdir}/sysconfig/vchanger
+
+%post
+if [ $1 -eq 1 ] ; then
+  /usr/bin/getent group tape &>/dev/null || /usr/sbin/groupadd -r tape
+  /usr/bin/getent group bacula &>/dev/null || /usr/sbin/groupadd -r bacula
+  /usr/bin/getent passwd bacula &>/dev/null || /usr/sbin/useradd -r -g bacula -d %{_localstatedir}/spool/bacula -s /bin/bash bacula
+  if [ ! -d %{_localstatedir}/spool/vchanger ] ; then
+    /bin/mkdir -p -m 0770 %{_localstatedir}/spool/vchanger
+    /bin/chown bacula:tape %{_localstatedir}/spool/vchanger
+  fi
+  if [ ! -d %{_localstatedir}/log/vchanger ] ; then
+    /bin/mkdir -p -m 0755 %{_localstatedir}/log/vchanger
+    /bin/chown bacula:tape %{_localstatedir}/log/vchanger
+  fi
+  if [ ! -d %{_sysconfdir}/vchanger ] ; then
+    /bin/mkdir -p -m 0755 %{_sysconfdir}/vchanger
+  fi
+fi
+
+%changelog
+* Wed Jun 3 2015 Josh Fisher <jfisher@jaybus.com>
+- Updated to release 1.0.1
+* Fri Apr 3 2015 Josh Fisher <jfisher@jaybus.com>
+- Initial spec file

scripts/Makefile.am

@@ -0,0 +1,4 @@
+vscriptdir=$(libexecdir)/vchanger
+dist_vscript_SCRIPTS = vchanger-launch-mount.sh vchanger-mount-uuid.sh \
+	vchanger-launch-umount.sh vchanger-umount-uuid.sh
+dist_bin_SCRIPTS = vchanger-genudevrules

scripts/Makefile.in

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+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic mostlyclean-am
+
+distclean: distclean-am
+	-rm -f Makefile
+distclean-am: clean-am distclean-generic
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am: install-dist_vscriptSCRIPTS
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-dist_binSCRIPTS
+
+install-html: install-html-am
+
+install-html-am:
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+install-info: install-info-am
+
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+
+install-man:
+
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+
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+
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+
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+
+maintainer-clean: maintainer-clean-am
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
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+pdf: pdf-am
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+uninstall-am: uninstall-dist_binSCRIPTS uninstall-dist_vscriptSCRIPTS
+
+.MAKE: install-am install-strip
+
+.PHONY: all all-am check check-am clean clean-generic cscopelist-am \
+	ctags-am distclean distclean-generic distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dist_binSCRIPTS \
+	install-dist_vscriptSCRIPTS install-dvi install-dvi-am \
+	install-exec install-exec-am install-html install-html-am \
+	install-info install-info-am install-man install-pdf \
+	install-pdf-am install-ps install-ps-am install-strip \
+	installcheck installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-generic pdf \
+	pdf-am ps ps-am tags-am uninstall uninstall-am \
+	uninstall-dist_binSCRIPTS uninstall-dist_vscriptSCRIPTS
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:

scripts/vchanger-genudevrules

@@ -0,0 +1,28 @@
+#!/bin/bash
+#
+#  vchanger-genudevrules ( vchanger v.1.0.1 ) 2015-06-03
+#
+#  Search all autochanger configuration files for magazines being defined
+#  by filesystem UUID and print to stdout the udev rules for launching
+#  mount and umount scripts for those filesystems whenever the corresponding
+#  disk drives are attached or detached from the system.
+#
+LEDIR=/usr/libexec/vchanger
+echo "# This file contains udev rules to launch mount and umount scripts"
+echo "# for magazines defined by filesystem UUID in the autochanger configuration"
+echo "# files under /etc/vchanger."
+echo "#"
+echo "# This file was generated by the vchanger-genudevrules script."
+echo "#"
+for cf in `ls -1 /etc/vchanger/*.conf` ; do
+  for tmp in `cat ${cf} | grep -v "^#" | tr -d " \t" | grep -i "^magazine="` ; do
+    tmp=`echo $tmp | grep -i "^magazine=uuid:"`
+    if [ -n "$tmp" ]; then
+      tmp=`echo $tmp | cut -d ':' -f 2 | tr -d ' \t\r\n'`
+      uuid=${tmp,,}
+      echo "ACTION==\"add\",SUBSYSTEM==\"block\", ENV{ID_FS_UUID}==\"$uuid\", RUN+=\"$LEDIR/vchanger-launch-mount.sh $uuid\""
+      echo "ACTION==\"remove\",SUBSYSTEM==\"block\", ENV{ID_FS_UUID}==\"$uuid\", RUN+=\"$LEDIR/vchanger-launch-umount.sh $uuid\""
+    fi
+  done
+done
+exit 0

scripts/vchanger-launch-mount.sh

@@ -0,0 +1,12 @@
+#!/bin/sh
+#
+#  vchanger-launch-mount.sh ( vchanger v.1.0.1 ) 2015-06-03
+#
+#  This script is used to run the vchanger-mount-uuid.sh script in
+#  another [background] process launched by the at command in order
+#  to prevent delays when invoked by a udev rule. 
+#
+VCHANGER_MOUNT=/usr/libexec/vchanger/vchanger-mount-uuid.sh
+{
+$VCHANGER_MOUNT $1
+} &

scripts/vchanger-launch-umount.sh

@@ -0,0 +1,12 @@
+#!/bin/sh
+#
+#  vchanger-launch-umount.sh ( vchanger v.1.0.1 ) 2015-06-03
+#
+#  This script is used to run the vchanger-umount-uuid.sh script in
+#  another [background] process launched by the at command in order
+#  to prevent delays when invoked by a udev rule. 
+#
+VCHANGER_UMOUNT=/usr/libexec/vchanger/vchanger-umount-uuid.sh
+{
+$VCHANGER_UMOUNT $1
+} &

scripts/vchanger-mount-uuid.sh

@@ -0,0 +1,93 @@
+#!/bin/bash
+#
+#  vchanger-mount-uuid.sh ( vchanger v.1.0.1 ) 2015-06-03
+#
+#  This script is used to mount the filesystem having the
+#  UUID specified in parameter 1 at a fixed path. The path
+#  will be a subdirectory of the path given by the MOUNT_DIR
+#  environment variable, where the UUID is used as the
+#  subdirectory name. The MOUNT_DIR variable is sourced from
+#  /etc/default/vchanger or /etc/sysconfig/vchanger. Also,
+#  the MOUNT_OPTIONS variable may be set to specify additional
+#  options to pass through to the mount command.
+#
+#  Generally, this script is designed to be invoked by a
+#  launcher script, vchanger-launch-mount.sh, that is itself
+#  launched directly by udev in response to a hotplug event.
+#  This is useful for headless systems that do not have an
+#  automount capability such as Gnome Nautilus, but have
+#  non-root daemons that require plug-n-play attachment of
+#  external disk drives.
+#
+
+MOUNT_DIR="/mnt"
+MOUNT_OPTIONS=
+[ -f /etc/sysconfig/vchanger ] && . /etc/sysconfig/vchanger
+[ -f /etc/default/vchanger ] && . /etc/default/vchanger
+[ -d "$MOUNT_DIR" ] || exit 0  # mount directory does not exist
+
+#  Parameter 1 specifies the UUID of the magazine
+#  to be mounted
+uuid=${1,,}
+[ -n "$uuid" ] || exit 0  # ignore invalid param
+
+#
+#  Return mountpoint of filesystem having UUID passed in param 1
+#  or else empty if UUID not found in fstab
+#
+function check_fstab {
+  local uuid=${1,,}
+  cat /etc/fstab | grep "^UUID=" | while read lin; do
+    line=`echo $lin | sed -e "s/[[:space:]]\+/ /g"`
+    tmp=`echo $line | cut -s -d ' ' -f 1 | cut -s -d '=' -f 2`
+    fu=${tmp,,}
+    if [ "z$fu" == "z$uuid" ]; then
+      echo $line | cut -s -d ' ' -f 2
+      return 0
+    fi
+  done
+}
+
+#  Search all autochanger configuration files for a magazine
+#  definition matching the UUID in parameter 1
+for cf in `ls -1 /etc/vchanger/*.conf` ; do
+  for tmp in `cat ${cf} | grep -v "^#" | tr -d " \t" | grep -i "^magazine="` ; do
+    tmp=`echo $tmp | grep -i "^magazine=uuid:"`
+    if [ -n "$tmp" ] ; then
+      tmp=`echo $tmp | cut -d ':' -f 2 | tr -d ' \t\r\n'`
+      tmp=${tmp,,}
+      if [ "z$uuid" == "z$tmp" ] ; then
+        # param 1 UUID matches a magazine filesystem
+        mdir=$(check_fstab $uuid)
+        if [ -n "$mdir" ]; then
+          # filesystem has UUID entry in fstab, so use it
+          if [ ! -d $mdir ]; then
+            mkdir -p $mdir &>/dev/null
+            [ -d $mdir ] || exit 0  # cannot create mountpoint dir
+            chmod 0750 $mdir
+          fi
+          mount $mdir
+          [ $? -eq 0 ] || exit 0
+          /usr/bin/vchanger $cf refresh
+          exit 0
+        fi
+        # Mount under configured MOUNT_DIR
+        if [ ! -d $MOUNT_DIR/$uuid ]; then
+          mkdir -p $MOUNT_DIR/$uuid &>/dev/null
+          [ -d $MOUNT_DIR/$uuid ] || exit 0  # cannot create mountpoint dir
+          chmod 0750 $MOUNT_DIR/$uuid
+        fi
+        echo checking dev
+        [ -e /dev/disk/by-uuid/$uuid ] || exit 0  # udev has no by-uuid symlinks
+        mount $MOUNT_OPTIONS /dev/disk/by-uuid/$uuid $MOUNT_DIR/$uuid &>/dev/null
+        if [ $? -eq 0 ] ; then
+		  # On successful mount, cause update slots to be issued in bconsole
+          /usr/bin/vchanger $cf refresh
+		fi
+        exit 0
+      fi
+    fi
+  done
+done
+exit 0
+            

scripts/vchanger-umount-uuid.sh

@@ -0,0 +1,76 @@
+#!/bin/bash
+#
+#  vchanger-umount-uuid.sh ( vchanger v.1.0.1 ) 2015-06-03
+#
+#  This script is used to unmount the filesystem having the
+#  UUID specified in parameter 1. The mountpoint path
+#  will be a subdirectory of the path given by the MOUNT_DIR
+#  environment variable, where the UUID is used as the
+#  subdirectory name. The MOUNT_DIR variable is sourced from
+#  /etc/default/vchanger or /etc/sysconfig/vchanger.
+#
+#  Generally, this script is designed to be invoked by a
+#  launcher script, vchanger-launch-umount.sh, that is itself
+#  launched directly by udev in response to a hotplug event.
+#  This is useful for headless systems that do not have an
+#  automount capability such as Gnome Nautilus, but have
+#  non-root daemons that require plug-n-play attachment of
+#  external disk drives.
+#
+
+MOUNT_DIR="/mnt/vchanger"
+MOUNT_OPTIONS=
+[ -f /etc/sysconfig/vchanger ] && . /etc/sysconfig/vchanger
+[ -f /etc/default/vchanger ] && . /etc/default/vchanger
+[ -d "$MOUNT_DIR" ] || exit 0  # mount directory does not exist
+
+#  Parameter 1 specifies the UUID of the magazine
+#  to be unmounted
+uuid=${1,,}
+[ -n "$uuid" ] || exit 0  # ignore invalid param
+
+#
+#  Return mountpoint of filesystem having UUID passed in param 1
+#  or else empty if UUID not found in fstab
+#
+function check_fstab {
+  local uuid=${1,,}
+  cat /etc/fstab | grep "^UUID=" | while read lin; do
+    line=`echo $lin | sed -e "s/[[:space:]]\+/ /g"`
+    tmp=`echo $line | cut -s -d ' ' -f 1 | cut -s -d '=' -f 2`
+    fu=${tmp,,}
+    if [ "z$fu" == "z$uuid" ]; then
+      echo $line | cut -s -d ' ' -f 2
+      return 0
+    fi
+  done
+}
+
+#  Search all autochanger configuration files for a magazine
+#  definition matching the UUID in parameter 1
+for cf in `ls -1 /etc/vchanger/*.conf` ; do
+  for tmp in `cat ${cf} | grep -v "^#" | tr -d " \t" | grep -i "^magazine="` ; do
+    tmp=`echo $tmp | grep -i "^magazine=uuid:"`
+    if [ -n "$tmp" ] ; then
+      tmp=`echo $tmp | cut -d ':' -f 2 | tr -d ' \t\r\n'`
+      tmp=${tmp,,}
+      if [ "z$uuid" == "z$tmp" ] ; then
+        # param 1 UUID matches a magazine filesystem
+        mdir=$(check_fstab $uuid)
+        if [ -n "$mdir" ]; then
+          # filesystem has UUID entry in fstab, so umount it
+          [ -d $mdir ] || exit 0  # mountpoint not found
+          umount $mdir &>/dev/null
+          /usr/bin/vchanger $cf refresh
+          exit 0
+        fi
+        # Unmount from configured MOUNT_DIR
+        [ -d $MOUNT_DIR/$uuid ] || exit 0  # mountpoint not found
+        umount $MOUNT_DIR/$uuid &>/dev/null
+        /usr/bin/vchanger $cf refresh
+        exit 0
+      fi
+    fi
+  done
+done
+exit 0

scripts/vchanger.default

@@ -0,0 +1,2 @@
+MOUNT_DIR=/mnt/vchanger
+MOUNT_OPTIONS=

src/Makefile.am

@@ -0,0 +1,14 @@
+AUTOMAKE_OPTIONS = foreign
+AM_CFLAGS = -DLOCALSTATEDIR='"${localstatedir}"'
+AM_CXXFLAGS = -DLOCALSTATEDIR='"${localstatedir}"'
+AM_LDFLAGS = @WINLDADD@
+bin_PROGRAMS = vchanger
+vchanger_SOURCES = compat/getline.c compat/gettimeofday.c \
+					compat/localtime_r.c \
+					compat/readlink.c \
+					compat/symlink.c compat/sleep.c compat/syslog.c \
+					win32_util.c uuidlookup.c bconsole.cpp \
+					tstring.cpp inifile.cpp mypopen.cpp \
+					vconf.cpp loghandler.cpp errhandler.cpp \
+					util.cpp changerstate.cpp diskchanger.cpp \
+					vchanger.cpp

src/Makefile.in

@@ -0,0 +1,722 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
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+      *=*|--*) continue;; \
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+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
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+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+bin_PROGRAMS = vchanger$(EXEEXT)
+subdir = src
+DIST_COMMON = $(srcdir)/Makefile.in $(srcdir)/Makefile.am \
+	$(top_srcdir)/depcomp
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
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+am__installdirs = "$(DESTDIR)$(bindir)"
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+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='compat/sleep.c' object='sleep.obj' libtool=no @AMDEPBACKSLASH@
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+
+syslog.o: compat/syslog.c
+@am__fastdepCC_TRUE@	$(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT syslog.o -MD -MP -MF $(DEPDIR)/syslog.Tpo -c -o syslog.o `test -f 'compat/syslog.c' || echo '$(srcdir)/'`compat/syslog.c
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+
+syslog.obj: compat/syslog.c
+@am__fastdepCC_TRUE@	$(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT syslog.obj -MD -MP -MF $(DEPDIR)/syslog.Tpo -c -o syslog.obj `if test -f 'compat/syslog.c'; then $(CYGPATH_W) 'compat/syslog.c'; else $(CYGPATH_W) '$(srcdir)/compat/syslog.c'; fi`
+@am__fastdepCC_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/syslog.Tpo $(DEPDIR)/syslog.Po
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+
+.cpp.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)$(CXXCOMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
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+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
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+
+.cpp.obj:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)$(CXXCOMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ `$(CYGPATH_W) '$<'`
+@am__fastdepCXX_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
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+	$(am__define_uniq_tagged_files); mkid -fID $$unique
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+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
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+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
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+	     $$unique
+
+GTAGS:
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+	  && $(am__cd) $(top_srcdir) \
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+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
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+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
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+check: check-am
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+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
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+
+clean-am: clean-binPROGRAMS clean-generic mostlyclean-am
+
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+	-rm -rf ./$(DEPDIR)
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+	distclean distclean-compile distclean-generic distclean-tags \
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+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:

src/bconsole.cpp

@@ -0,0 +1,176 @@
+/* bconsole.cpp
+ *
+ *  Copyright (C) 2008-2014 Josh Fisher
+ *
+ *  This program is free software. You may redistribute it and/or modify
+ *  it under the terms of the GNU General Public License, as published by
+ *  the Free Software Foundation; either version 2, or (at your option)
+ *  any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ *  General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  See the file "COPYING".  If not,
+ *  see <http://www.gnu.org/licenses/>.
+*/
+
+#include "config.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+#ifdef HAVE_SYS_WAIT_H
+#include <sys/wait.h>
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include <sys/select.h>
+#else
+#ifdef HAVE_WINSOCK_H
+#include <winsock.h>
+#endif
+#endif
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#ifdef HAVE_CTYPE_H
+#include <ctype.h>
+#endif
+
+#include "loghandler.h"
+#include "mypopen.h"
+#include "vconf.h"
+#include "bconsole.h"
+
+
+/*
+ *  Function to issue command in Bacula console.
+ *  Returns zero on success, or errno if there was an error running the command
+ *  or a timeout occurred.
+ */
+int issue_bconsole_command(const char *bcmd)
+{
+   int pid, rc, n, len, fno_in = -1, fno_out = -1;
+   struct timeval tv;
+   fd_set rfd;
+   tString cmd, tmp;
+   char buf[4096];
+
+#ifndef HAVE_WINDOWS_H
+   /* Build command line */
+   cmd = conf.bconsole;
+   if (cmd.empty()) return 0;
+   if (!conf.bconsole_config.empty()) {
+      cmd += " -c ";
+      cmd += conf.bconsole_config;
+   }
+   cmd += " -n -u 30";
+   /* Start bconsole process */
+   log.Debug("bconsole: running '%s'", bcmd);
+   pid = mypopen_raw(cmd.c_str(), &fno_in, &fno_out, NULL);
+   if (pid < 0) {
+      rc = errno;
+      log.Error("bconsole: run failed errno=%d", rc);
+      errno = rc;
+      return rc;
+   }
+   /* Wait for bconsole to accept input */
+   tv.tv_sec = 30;
+   tv.tv_usec = 0;
+   FD_ZERO(&rfd);
+   FD_SET(fno_in, &rfd);
+   rc = select(fno_in + 1, NULL, &rfd, NULL, &tv);
+   if (rc == 0) {
+      log.Error("bconsole: timed out waiting to send command");
+      close(fno_in);
+      close(fno_out);
+      errno = ETIMEDOUT;
+      return ETIMEDOUT;
+   }
+   if (rc < 0) {
+      rc = errno;
+      log.Error("bconsole: errno=%d waiting to send command", rc);
+      close(fno_in);
+      close(fno_out);
+      errno = rc;
+      return rc;
+   }
+   /* Send command to bconsole's stdin */
+   len = strlen(bcmd);
+   n = 0;
+   while (n < len) {
+      rc = write(fno_in, bcmd + n, len - n);
+      if (rc < 0) {
+         rc = errno;
+         log.Error("bconsole: send to bconsole's stdin failed errno=%d", rc);
+         close(fno_in);
+         close(fno_out);
+         errno = rc;
+         return rc;
+      }
+      n += rc;
+   }
+   close(fno_in);
+
+   /* Read stdout from bconsole */
+   memset(buf, 0, sizeof(buf));
+   tmp.clear();
+   while (true) {
+      tv.tv_sec = 30;
+      tv.tv_usec = 0;
+      FD_ZERO(&rfd);
+      FD_SET(fno_out, &rfd);
+      rc = select(fno_out + 1, &rfd, NULL, NULL, &tv);
+      if (rc == 0) {
+         log.Error("bconsole: timed out waiting for bconsole output");
+         close(fno_out);
+         errno = ETIMEDOUT;
+         return ETIMEDOUT;
+      }
+      if (rc < 0) {
+         rc = errno;
+         log.Error("bconsole: errno=%d waiting for bconsole output", rc);
+         close(fno_out);
+         errno = rc;
+         return rc;
+      }
+      rc = read(fno_out, buf, 4095);
+      if (rc < 0) {
+         rc = errno;
+         log.Error("bconsole: errno=%d reading bconsole stdout", rc);
+         close(fno_out);
+         errno = rc;
+         return rc;
+      } else if (rc > 0) {
+         buf[rc] = 0;
+         tmp += buf;
+      } else break;
+   }
+   close(fno_out);
+   log.Debug("bconsole: output:\n%s", tmp.c_str());
+
+   /* Wait for bconsole process to finish */
+   pid = waitpid(pid, &rc, 0);
+   if (!WIFEXITED(rc)) {
+      log.Error("bconsole: abnormal exit of bconsole process");
+      return EPIPE;
+   }
+   if (WEXITSTATUS(rc)) {
+      log.Error("bconsole: exited with rc=%d", WEXITSTATUS(rc));
+      return WEXITSTATUS(rc);
+   }
+   return 0;
+#else
+   return EINVAL;
+#endif
+}

src/bconsole.h

@@ -0,0 +1,29 @@
+/*  bconsole.h
+ *
+ *  This file is part of vchanger by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2008-2014 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+*/
+
+#ifndef BCONSOLE_H_
+#define BCONSOLE_H_
+
+int issue_bconsole_command(const char *bcmd);
+
+#endif /* BCONSOLE_H_ */

src/changerstate.cpp

@@ -0,0 +1,851 @@
+/* changerstate.cpp
+ *
+ *  This file is part of vchanger by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2008-2015 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+ *
+ *  Provides a class to track state of virtual drives using files in
+ *  the vchanger state directory.
+*/
+
+#include "config.h"
+#include "compat_defs.h"
+#ifdef HAVE_STDIO_H
+#include <stdio.h>
+#endif
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#ifdef HAVE_STDDEF_H
+#include <stddef.h>
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif
+#ifdef HAVE_DIRENT_H
+#include <dirent.h>
+#endif
+#ifdef HAVE_CTYPE_H
+#include <ctype.h>
+#endif
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+
+#include "compat/getline.h"
+#include "compat/readlink.h"
+#include "compat/symlink.h"
+#include "vconf.h"
+#include "loghandler.h"
+#include "errhandler.h"
+#include "util.h"
+#define __CHANGERSTATE_SOURCE 1
+#include "changerstate.h"
+#include "uuidlookup.h"
+
+///////////////////////////////////////////////////
+//  Class MagazineSlot
+///////////////////////////////////////////////////
+
+MagazineSlot::MagazineSlot(const MagazineSlot &b)
+{
+   mag_bay = b.mag_bay;
+   mag_slot = b.mag_slot;
+   label = b.label;
+}
+
+MagazineSlot& MagazineSlot::operator=(const MagazineSlot &b)
+{
+   if (&b != this) {
+      mag_bay = b.mag_bay;
+      mag_slot = b.mag_slot;
+      label = b.label;
+   }
+   return *this;
+}
+
+bool MagazineSlot::operator==(const MagazineSlot &b)
+{
+   if (&b == this) return true;
+   if (label == b.label) return true;
+   return false;
+}
+
+bool MagazineSlot::operator!=(const MagazineSlot &b)
+{
+   if (&b == this) return false;
+   if (label != b.label) return true;
+   return false;
+}
+
+/*-------------------------------------------------
+ *  Method to clear object values
+ *-------------------------------------------------*/
+void MagazineSlot::clear()
+{
+   mag_bay = -1;
+   mag_slot = -1;
+   label.clear();
+}
+
+
+
+///////////////////////////////////////////////////
+//  Class MagazineState
+///////////////////////////////////////////////////
+
+MagazineState::MagazineState(const MagazineState &b)
+{
+   mag_bay = b.mag_bay;
+   num_slots = b.num_slots;
+   start_slot = b.start_slot;
+   prev_num_slots = b.prev_num_slots;
+   prev_start_slot = b.prev_start_slot;
+   mag_dev = b.mag_dev;
+   mountpoint = b.mountpoint;
+   mslot = b.mslot;
+   verr = b.verr;
+}
+
+MagazineState& MagazineState::operator=(const MagazineState &b)
+{
+   if (&b != this) {
+      mag_bay = b.mag_bay;
+      num_slots = b.num_slots;
+      start_slot = b.start_slot;
+      prev_num_slots = b.prev_num_slots;
+      prev_start_slot = b.prev_start_slot;
+      mag_dev = b.mag_dev;
+      mountpoint = b.mountpoint;
+      mslot = b.mslot;
+      verr = b.verr;
+   }
+   return *this;
+}
+
+void MagazineState::clear()
+{
+   /* Notice that device and bay number are not cleared */
+   num_slots = 0;
+   start_slot = 0;
+   mountpoint.clear();
+   mslot.clear();
+   verr.clear();
+}
+
+/*-------------------------------------------------
+ *  Method to save current state of magazine bay to a file in
+ *  the work directory named "bay" + bay_number.
+ *  On success returns zero, otherwise sets lasterr and
+ *  returns errno.
+ *-------------------------------------------------*/
+int MagazineState::save()
+{
+   mode_t old_mask;
+   int rc;
+   FILE *FS;
+   char sname[4096];
+
+   if (mag_bay < 0) {
+      verr.SetErrorWithErrno(EINVAL, "cannot save state of invalid magazine %d", mag_bay);
+      log.Error("ERROR! %s", verr.GetErrorMsg());
+      return EINVAL;
+   }
+   /* Build path to state file */
+   snprintf(sname, sizeof(sname), "%s%sbay_state-%d", conf.work_dir.c_str(), DIR_DELIM, mag_bay);
+   /* Remove magazine state files for unmounted magazines */
+   if (mountpoint.empty() || mslot.empty()) {
+      unlink(sname);
+      return 0;
+   }
+   /* Write state file for mounted magazine */
+   old_mask = umask(027);
+   FS = fopen(sname, "w");
+   if (!FS) {
+      /* Unable to open state file for writing */
+      rc = errno;
+      umask(old_mask);
+      verr.SetErrorWithErrno(rc, "cannot open magazine %d state file for writing", mag_bay);
+      log.Error("ERROR! %s", verr.GetErrorMsg());
+      return rc;
+   }
+   /* Save magazine device (directory or UUID), number of volumes, and start of
+    * virtual slot range it is assigned */
+   if (fprintf(FS, "%s,%d,%d\n", mag_dev.c_str(), num_slots, start_slot) < 0) {
+      /* I/O error writing state file */
+      rc = errno;
+      fclose(FS);
+      unlink(sname);
+      umask(old_mask);
+      verr.SetErrorWithErrno(rc, "cannot write to magazine %d state file", mag_bay);
+      log.Error("ERROR! %s", verr.GetErrorMsg());
+      return rc;
+   }
+   fclose(FS);
+   umask(old_mask);
+   log.Notice("saved state of magazine %d", mag_bay);
+   return 0;
+}
+
+
+/*-------------------------------------------------
+ *  Method to restore state of magazine from a file in the work
+ *  directory named "bay_state-N", where N is the bay number.
+ *  On success returns zero, otherwise sets lasterr and
+ *  returns errno.
+ *-------------------------------------------------*/
+int MagazineState::restore()
+{
+   int rc;
+   tString line, word;
+   struct stat st;
+   FILE *FS;
+   size_t p;
+   char sname[4096];
+
+   if (mag_bay < 0) {
+      verr.SetErrorWithErrno(EINVAL, "cannot restore state of invalid magazine %d", mag_bay);
+      log.Error("ERROR! %s", verr.GetErrorMsg());
+      return EINVAL;
+   }
+   clear();
+   prev_num_slots = 0;
+   prev_start_slot = 0;
+   snprintf(sname, sizeof(sname), "%s%sbay_state-%d", conf.work_dir.c_str(), DIR_DELIM, mag_bay);
+
+   /* Check for existing state file */
+   if (stat(sname, &st)) {
+      /* magazine bay state file not found, so bay did not previously
+       * contain a magazine */
+      return 0;
+   }
+   /* Read bay state file */
+   FS = fopen(sname, "r");
+   if (!FS) {
+      /* No read permission? */
+      rc = errno;
+      verr.SetErrorWithErrno(rc, "cannot open magazine %d state file for reading", mag_bay);
+      log.Error("ERROR! %s", verr.GetErrorMsg());
+      return rc;
+   }
+   if (tGetLine(line, FS) == NULL) {
+      rc = errno;
+      if (!feof(FS)) {
+         /* error reading bay state file */
+         fclose(FS);
+         verr.SetErrorWithErrno(rc, "error reading magazine %d state file", mag_bay);
+         log.Error("ERROR! %s", verr.GetErrorMsg());
+         return rc;
+      }
+   }
+   fclose(FS);
+
+   /* Get magazine device (UUID or path specified in config) */
+   tStrip(tRemoveEOL(line));
+   p = 0;
+   if (tParseCSV(word, line, p) <= 0) {
+      /* bay state file should not be empty, assume it didn't exist */
+      log.Warning("WARNING! magazine %d state file was empty, deleting it", mag_bay);
+      unlink(sname);
+      return 0;
+   }
+   if (mag_dev != word) {
+      /* Order of mag bays has changed in config file so ignore old state */
+      unlink(sname);
+      return 0;
+   }
+
+   /* Get number of slots */
+   if (tParseCSV(word, line, p) <= 0) {
+      /* Bay state file is corrupt.
+       * Treat as if it was not mounted at last invocation */
+      clear();
+      log.Warning("WARNING! magazine %d state file corrupt, deleting it", mag_bay);
+      unlink(sname);
+      return 0;
+   }
+   if (!isdigit(word[0])) {
+      /* Corrupt bay state file, assume it doesn't exist */
+      clear();
+      unlink(sname);
+      log.Warning("WARNING! magazine %d state file has invalid number of slots field, deleting it", mag_bay);
+      return 0;
+   }
+   prev_num_slots = (int)strtol(word.c_str(), NULL, 10);
+   if (prev_num_slots < 0) {
+      /* Corrupt bay state file, assume it doesn't exist */
+      clear();
+      prev_num_slots = 0;
+      unlink(sname);
+      log.Warning("WARNING! magazine %d state file has invalid number of slots field, deleting it", mag_bay);
+      return 0;
+   }
+
+   /* Get virtual slot number offset */
+   if (tParseCSV(word, line, p) <= 0) {
+      /* Bay state file is corrupt.
+       * Treat as if it was not mounted at last invocation */
+      clear();
+      prev_num_slots = 0;
+      log.Warning("WARNING! magazine %d state file corrupt, deleting it", mag_bay);
+      unlink(sname);
+      return 0;
+   }
+   if (!isdigit(word[0])) {
+      /* Corrupt bay state file, assume it doesn't exist */
+      clear();
+      prev_num_slots = 0;
+      unlink(sname);
+      log.Warning("WARNING! magazine %d state file has invalid virtual slot assignment field, deleting it",
+            mag_bay);
+      return 0;
+   }
+   prev_start_slot = (int)strtol(word.c_str(), NULL, 10);
+   if (prev_start_slot <= 0) {
+      /* Corrupt bay state file, assume it doesn't exist */
+      clear();
+      prev_num_slots = 0;
+      prev_start_slot = 0;
+      unlink(sname);
+      log.Warning("WARNING! magazine %d state file has invalid virtual slot assignment field, deleting it",
+            mag_bay);
+      return 0;
+   }
+   log.Notice("restored state of magazine %d", mag_bay);
+   return 0;
+}
+
+
+/*-------------------------------------------------
+ *  Method to update a magazine from vchanger version 0.x format
+ *  to the format used with version 1.0.0 or higher.
+ *  Return values are:
+ *       0    Success
+ *-------------------------------------------------*/
+int MagazineState::UpdateMagazineFormat()
+{
+   FILE *fs;
+   DIR *dir;
+   struct dirent *de;
+   struct stat st;
+   tString str, fname, lname, vname;
+   int drv;
+
+   /* Rename driveN files to their volume file name */
+   dir = opendir(mountpoint.c_str());
+   if (!dir) return -1;
+   de = readdir(dir);
+   while (de) {
+      /* Skip if not regular file */
+      tFormat(fname, "%s%s%s", mountpoint.c_str(), DIR_DELIM, de->d_name);
+      stat(fname.c_str(), &st);
+      if (!S_ISREG(st.st_mode)) {
+         de = readdir(dir);
+         continue;
+      }
+      /* Skip index file */
+      if (tCaseCmp(de->d_name, "index") == 0) {
+         de = readdir(dir);
+         continue;
+      }
+      str = de->d_name;
+      if (str.find("drive") == 0) {
+         str.erase(0, 5);
+         if (str.find_first_of("0123456789") == tString::npos) {
+            de = readdir(dir);
+            continue;
+         }
+         if (str.find_first_not_of("0123456789") != tString::npos) {
+            de = readdir(dir);
+            continue;
+         }
+         drv = (int)strtol(str.c_str(), NULL, 10);
+         tFormat(lname, "%s%sloaded%d", mountpoint.c_str(), DIR_DELIM, drv);
+         fs = fopen(lname.c_str(), "r");
+         if (fs == NULL) {
+            verr.SetErrorWithErrno(errno, "failed to find loaded%d file when updating magazine %d", drv, mag_bay);
+            log.Error("ERROR! %s", verr.GetErrorMsg());
+            de = readdir(dir);
+            continue;
+         }
+         tGetLine(str, fs);
+         fclose(fs);
+         if (str.empty()) {
+            verr.SetError(-1, "loaded%d file empty when updating magazine %d", drv, mag_bay);
+            log.Error("ERROR! %s", verr.GetErrorMsg());
+            de = readdir(dir);
+            continue;
+         }
+         tStrip(tRemoveEOL(str));
+         tFormat(vname, "%s%s%s", mountpoint.c_str(), DIR_DELIM, str.c_str());
+         if (rename(fname.c_str(), vname.c_str())) {
+            verr.SetError(EINVAL, "unable to rename 'drive%d' on magazine %d",
+                           drv, mag_bay);
+            log.Error("ERROR! %s", verr.GetErrorMsg());
+         }
+      }
+      de = readdir(dir);
+   }
+   closedir(dir);
+
+   /* Delete loadedN files */
+   dir = opendir(mountpoint.c_str());
+   de = readdir(dir);
+   while (de) {
+      str = de->d_name;
+      /* Skip if not regular file */
+      tFormat(fname, "%s%s%s", mountpoint.c_str(), DIR_DELIM, de->d_name);
+      stat(fname.c_str(), &st);
+      if (!S_ISREG(st.st_mode)) {
+         de = readdir(dir);
+         continue;
+      }
+      if (str.find("loaded") == 0) {
+         str.erase(0, 6);
+         if (str.find_first_of("0123456789") == tString::npos) {
+            de = readdir(dir);
+            continue;
+         }
+         if (str.find_first_not_of("0123456789") != tString::npos) {
+            de = readdir(dir);
+            continue;
+         }
+         unlink(fname.c_str());
+      }
+      de = readdir(dir);
+   }
+   closedir(dir);
+
+   /* Delete index file */
+   tFormat(fname, "%s%sindex", mountpoint.c_str(), DIR_DELIM);
+   unlink(fname.c_str());
+
+   log.Warning("magaine %d updated from old format", mag_bay);
+   return 0;
+}
+
+
+/*-------------------------------------------------
+ *  Method to determine mountpoint of magazine and assign its volume files
+ *  to magazine slots. Regular files on the magazine are assigned slots in
+ *  ascending alphanumeric order by filename beginning with magazine slot zero.
+ *  If the magazine's device string begins with "UUID:" (case insensitive),
+ *  then it specifies the UUID of a file system on a disk partition to be used
+ *  as the virtual magazine. Otherwise, it specifies a directory to be used as
+ *  the virtual magazine. If a UUID is given, then the system is queried to
+ *  determine the mountpoint of the filesystem with the given UUID. The magazine
+ *  device must already be mounted or configured to be auto-mounted.
+ *  Return values are:
+ *       0    Magazine assigned successfully
+ *      -1    system error
+ *      -2    parameter error
+ *      -3    magname not found or not mounted
+ *      -5    permission denied
+ *-------------------------------------------------*/
+int MagazineState::Mount()
+{
+   int rc, s;
+   DIR *dir;
+   struct dirent *de;
+   struct stat st;
+   tString fname, line, path;
+   MagazineSlot v;
+   std::list<tString> vname;
+   std::list<tString>::iterator p;
+   char buf[4096];
+
+   clear();
+   if (tCaseFind(mag_dev, "uuid:") != 0) {
+      /* magazine specified as filesystem path */
+      mountpoint = mag_dev;
+   } else {
+      /* magazine specified as UUID, so query OS for mountpoint */
+      rc = GetMountpointFromUUID(buf, sizeof(buf), mag_dev.substr(5).c_str());
+      mountpoint = buf;
+      if (rc == -3 || rc == -4) {
+         /* magazine device not found or not mounted */
+         mountpoint.clear();
+         return -3;
+      }
+      if (rc) {
+         verr.SetError(rc, "system error determining mountpoint from UUID");
+         log.Error("ERROR! %s", verr.GetErrorMsg());
+         mountpoint.clear();
+         return -1;
+      }
+   }
+
+   /* Check mountpoint exists */
+   if (access(mountpoint.c_str(), F_OK) != 0) {
+      /* Mountpoint not found */
+      mountpoint.clear();
+      return -3;
+   }
+
+   /* Ensure access to magazine mountpoint */
+   if (access(mountpoint.c_str(), W_OK) != 0) {
+      verr.SetError(rc, "no write access to directory %s", mountpoint.c_str());
+      log.Error("%s", verr.GetErrorMsg());
+      mountpoint.clear();
+      return -5;
+   }
+
+   /* If this magazine contains a file named index then assume it was
+    * created by an old version of vchanger and prepare it for use
+    * by removing meta-information files. */
+   tFormat(fname, "%s%sindex", mountpoint.c_str(), DIR_DELIM);
+   if (access(fname.c_str(), F_OK) == 0) {
+      UpdateMagazineFormat();
+   }
+
+   /* Build list of this magazine's volume files */
+   dir = opendir(mountpoint.c_str());
+   if (!dir) {
+      /* could not open mountpoint dir */
+      rc = errno;
+      verr.SetErrorWithErrno(rc, "cannot open directory '%s'", mountpoint.c_str());
+      log.Error("ERROR! %s", verr.GetErrorMsg());
+      mountpoint.clear();
+      if (rc == ENOTDIR || rc == ENOENT) return -3;
+      if (rc == EACCES) return -5;
+      return -1;
+   }
+   de = readdir(dir);
+   while (de) {
+      /* Skip if not regular file */
+      tFormat(path, "%s%s%s", mountpoint.c_str(), DIR_DELIM, de->d_name);
+      stat(path.c_str(), &st);
+      if (!S_ISREG(st.st_mode)) {
+         de = readdir(dir);
+         continue;
+      }
+      /* Writable regular files on magazine are considered volume files */
+      if (access(path.c_str(), W_OK) == 0) {
+         vname.push_back(de->d_name);
+      }
+      de = readdir(dir);
+   }
+   closedir(dir);
+   if (vname.empty()) {
+      /* Magazine is ready for use but has no volumes */
+      start_slot = 0;
+      num_slots = 0;
+      return 0;
+   }
+   /* Assign volume files to slots in alphanumeric order */
+   vname.sort();
+   s = 0;
+   for (p = vname.begin(); p != vname.end(); p++) {
+      v.mag_bay = mag_bay;
+      v.label = *p;
+      v.mag_slot = s++;
+      mslot.push_back(v);
+   }
+   num_slots = (int)mslot.size();
+   return 0;
+}
+
+
+/*-------------------------------------------------
+ *  Method to get path to volume file in a magazine slot
+ *  On success returns path, else returns empty string
+ *-------------------------------------------------*/
+const char* MagazineState::GetVolumeLabel(int ms) const
+{
+   if (ms >= 0 && ms < (int)mslot.size() && !mslot[ms].empty()) {
+      return mslot[ms].label.c_str();
+   }
+   return "";
+}
+
+
+/*-------------------------------------------------
+ *  Method to get path to volume file in a magazine slot
+ *  On success returns path, else returns empty string
+ *-------------------------------------------------*/
+tString MagazineState::GetVolumePath(int ms)
+{
+   tString result;
+   if (ms >= 0 && ms < (int)mslot.size()) {
+      tFormat(result, "%s%s%s", mountpoint.c_str(), DIR_DELIM, GetVolumeLabel(ms));
+   }
+   return result;
+}
+
+
+/*-------------------------------------------------
+ *  Method to get path to volume file in a magazine slot
+ *  On success returns path, else returns empty string
+ *-------------------------------------------------*/
+const char* MagazineState::GetVolumePath(tString &path, int ms)
+{
+   path = GetVolumePath(ms);
+   return path.c_str();
+}
+
+
+/*-------------------------------------------------
+ *  Method to get magazine slot containing a label.
+ *  On success returns magazine slot number, else negative.
+ *-------------------------------------------------*/
+int MagazineState::GetVolumeSlot(const char *label)
+{
+   int n;
+   for (n = 0; n < num_slots; n++) {
+      if (mslot[n].label == label) return n;
+   }
+   return -1;
+}
+
+
+/*-------------------------------------------------
+ *  Method to create a new volume file. 'vol_label_in' gives the
+ *  name of the new volume file to create on the magazine. If empty,
+ *  then a volume file name is generated based on the magazine's name.
+ *  A new magazine slot is appended to hold the new volume and a new
+ *  virtual slot is appended that maps to the new magazine slot.
+ *  On success returns zero, else sets lasterr and returns negative
+ *-------------------------------------------------*/
+int MagazineState::CreateVolume(const char *vol_label_in)
+{
+   int rc = 0, slot;
+   FILE *fs;
+   tString fname, label(vol_label_in);
+   MagazineSlot new_mslot;
+
+   if (label.empty()) {
+      slot = (int)mslot.size();
+      --slot;
+      while(rc == 0) {
+         ++slot;
+         tFormat(label, "%s_%d_%d", conf.storage_name.c_str(), mag_bay, slot);
+         tFormat(fname, "%s%s%s", mountpoint.c_str(), DIR_DELIM, label.c_str());
+         if (access(fname.c_str(), F_OK)) rc = errno;
+         else rc = 0;
+      }
+   } else {
+      tFormat(fname, "%s%s%s", mountpoint.c_str(), DIR_DELIM, label.c_str());
+      if (access(fname.c_str(), F_OK)) rc = errno;
+      else rc = 0;
+      if (rc == 0) {
+         verr.SetErrorWithErrno(rc, "volume %s already exists on magazine %d", label.c_str(), mag_bay);
+         return EEXIST;
+      }
+   }
+   if (rc != ENOENT) {
+      verr.SetErrorWithErrno(rc, "error %d accessing volumes on magazine %d", rc, mag_bay);
+      log.Error("MagazineState::CreateVolume: %s", verr.GetErrorMsg());
+      return -1;
+   }
+   /* Create new volume file on magazine */
+   fs = fopen(fname.c_str(), "w");
+   if (!fs) {
+      rc = errno;
+      verr.SetErrorWithErrno(rc, "error %d creating volume on magazine %d", rc, mag_bay);
+      log.Error("MagazineState::CreateVolume: %s", verr.GetErrorMsg());
+      return -1;
+   }
+   fclose(fs);
+   new_mslot.mag_bay = mag_bay;
+   new_mslot.mag_slot = mslot.size();
+   new_mslot.label = label;
+   mslot.push_back(new_mslot);
+   ++num_slots;
+   log.Notice("created volume '%s' on magazine %d (%s)", label.c_str(), mag_bay, mag_dev.c_str());
+   return 0;
+}
+
+
+/*-------------------------------------------------
+ *  Method to assign bay number and device for this magazine
+ *-------------------------------------------------*/
+void MagazineState::SetBay(int bay, const char *dev)
+{
+   mag_bay = bay;
+   mag_dev = dev;
+   clear();
+}
+
+
+
+///////////////////////////////////////////////////
+//  Class VirtualSlot
+///////////////////////////////////////////////////
+
+VirtualSlot::VirtualSlot(const VirtualSlot &b)
+{
+   vs = b.vs;
+   drv = b.drv;
+   mag_bay = b.mag_bay;
+   mag_slot = b.mag_slot;
+}
+
+VirtualSlot& VirtualSlot::operator=(const VirtualSlot &b)
+{
+   if (this != &b) {
+      vs = b.vs;
+      drv = b.drv;
+      mag_bay = b.mag_bay;
+      mag_slot = b.mag_slot;
+   }
+   return *this;
+}
+
+
+/*-------------------------------------------------
+ *  Method to clear an virtual slot's values
+ *-------------------------------------------------*/
+void VirtualSlot::clear()
+{
+   drv = -1;
+   mag_bay = -1;
+   mag_slot = -1;
+}
+
+
+
+///////////////////////////////////////////////////
+//  Class DriveState
+///////////////////////////////////////////////////
+
+DriveState::DriveState(const DriveState &b)
+{
+   drv = b.drv;
+   vs = b.vs;
+}
+
+DriveState& DriveState::operator=(const DriveState &b)
+{
+   if (&b != this) {
+      drv = b.drv;
+      vs = b.vs;
+   }
+   return *this;
+}
+
+/*
+ *  Method to clear a drive's values
+ */
+void DriveState::clear()
+{
+   /* do not clear drive number */
+   vs = -1;
+}
+
+
+
+///////////////////////////////////////////////////
+//  Class DynamicConfig
+///////////////////////////////////////////////////
+
+/*-------------------------------------------------
+ *  Method to save dynamic configuration info to a file in
+ *  the work directory named dynamic.conf.
+ *-------------------------------------------------*/
+void DynamicConfig::save()
+{
+   mode_t old_mask;
+   int rc;
+   FILE *FS;
+   char sname[4096];
+
+   if (max_slot < 10) max_slot = 10;
+   /* Build path to dynamic.conf file */
+   snprintf(sname, sizeof(sname), "%s%sdynamic.conf", conf.work_dir.c_str(), DIR_DELIM);
+   /* Write dynamic config info */
+   old_mask = umask(027);
+   FS = fopen(sname, "w");
+   if (!FS) {
+      /* Unable to open dynamic.conf file for writing */
+      rc = errno;
+      umask(old_mask);
+      log.Error("ERROR! cannot open dynamic.conf file for writing (errno=%d)", rc);
+      return;
+   }
+   /* Save max slot number in use to dynamic configuration */
+   if (fprintf(FS, "max_used_slot=%d\n", max_slot) < 0) {
+      /* I/O error writing dynamic.conf file */
+      rc = errno;
+      fclose(FS);
+      unlink(sname);
+      umask(old_mask);
+      log.Error("ERROR! i/o error writing dynamic.conf file (errno=%d)", rc);
+      return;
+   }
+   fclose(FS);
+   umask(old_mask);
+   log.Notice("saved dynamic configuration (max used slot: %d)", max_slot);
+}
+
+
+/*-------------------------------------------------
+ *  Method to restore dynamic configuration info.
+ *-------------------------------------------------*/
+void DynamicConfig::restore()
+{
+   int rc;
+   tString line;
+   struct stat st;
+   FILE *FS;
+   char sname[4096];
+
+   if (max_slot < 10) max_slot = 10;
+   /* Build path to dynamic.conf file */
+   snprintf(sname, sizeof(sname), "%s%sdynamic.conf", conf.work_dir.c_str(), DIR_DELIM);
+   /* Check for existing file */
+   if (stat(sname, &st)) {
+      /* dynamic configuration file not found */
+      return;
+   }
+   /* Read dynamic.conf file */
+   FS = fopen(sname, "r");
+   if (!FS) {
+      /* No read permission? */
+      rc = errno;
+      log.Error("ERROR! cannot open dynamic.conf file for restore (errno=%d)", rc);
+      return;
+   }
+   if (tGetLine(line, FS) == NULL) {
+      rc = errno;
+      if (!feof(FS)) {
+         /* error reading bay state file */
+         fclose(FS);
+         log.Error("ERROR! i/o error reading dynamic.conf file (errno=%d)", rc);
+         return;
+      }
+   }
+   fclose(FS);
+
+   /* Get magazine device (UUID or path specified in config) */
+   tStrip(tRemoveEOL(line));
+   if (tCaseFind(line, "max_used_slot") == 0) {
+      max_slot = (int)strtol(line.substr(14).c_str(), NULL, 10);
+      if (max_slot < 10) max_slot = 10;
+   }
+}
+

src/changerstate.h

@@ -0,0 +1,137 @@
+/* changerstate.h
+ *
+ *  This file is part of vchanger by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2008-2015 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+*/
+#ifndef CHANGERSTATE_H_
+#define CHANGERSTATE_H_
+
+#include <vector>
+#include "tstring.h"
+#include "errhandler.h"
+
+class MagazineSlot
+{
+public:
+   MagazineSlot() : mag_bay(-1), mag_slot(-1) {}
+   MagazineSlot(const MagazineSlot &b);
+	virtual ~MagazineSlot() {}
+	MagazineSlot& operator=(const MagazineSlot &b);
+   bool operator==(const MagazineSlot &b);
+   bool operator!=(const MagazineSlot &b);
+   void clear();
+   inline bool empty() { return label.empty(); }
+   inline bool empty() const { return label.empty(); }
+   inline bool operator==(const char *lab) { return (label == lab); }
+   inline bool operator!=(const char *lab) { return (label != lab); }
+public:
+	int mag_bay;
+	int mag_slot;
+	tString label;
+};
+
+typedef std::vector<MagazineSlot> MagazineSlotArray;
+
+class MagazineState
+{
+public:
+   MagazineState() : mag_bay(-1), num_slots(0), start_slot(0), prev_num_slots(0), prev_start_slot(0) {}
+	MagazineState(const MagazineState &b);
+	virtual ~MagazineState() {}
+	MagazineState& operator=(const MagazineState &b);
+	void clear();
+   int save();
+	int restore();
+	int Mount();
+	void SetBay(int bay, const char *dev);
+	inline void SetBay(int bay, const tString &dev) { SetBay(bay, dev.c_str()); }
+   tString GetVolumePath(int mag_slot);
+   const char* GetVolumePath(tString &path, int slot);
+   const char* GetVolumeLabel(int mag_slot) const;
+   int GetVolumeSlot(const char *fname);
+   inline int GetVolumeSlot(const tString &fname) { return GetVolumeSlot(fname.c_str()); }
+	int CreateVolume(const char *vol_label = "");
+	inline int CreateVolume(const tString &labl) { return CreateVolume(labl.c_str()); }
+   inline bool empty() { return mountpoint.empty(); }
+   inline bool empty() const { return mountpoint.empty(); }
+protected:
+	int ReadMagazineIndex();
+	int UpdateMagazineFormat();
+public:
+	int mag_bay;
+	int num_slots;
+	int start_slot;
+	int prev_num_slots;
+	int prev_start_slot;
+	tString mag_dev;
+	tString mountpoint;
+	MagazineSlotArray mslot;
+   ErrorHandler verr;
+};
+
+typedef std::vector<MagazineState> MagazineStateArray;
+
+class VirtualSlot
+{
+public:
+   VirtualSlot() : vs(0), drv(-1), mag_bay(-1), mag_slot(-1) {}
+   VirtualSlot(const VirtualSlot &b);
+   virtual ~VirtualSlot() {}
+   VirtualSlot& operator=(const VirtualSlot &b);
+   void clear();
+   bool empty() { return mag_bay < 0; }
+   bool empty() const { return mag_bay < 0; }
+public:
+   int vs;
+   int drv;
+   int mag_bay;
+   int mag_slot;
+};
+
+typedef std::vector<VirtualSlot> VirtualSlotArray;
+
+class DynamicConfig
+{
+public:
+   DynamicConfig() : max_slot(0) {}
+   void save();
+   void restore();
+public:
+   int max_slot;
+};
+
+class DriveState
+{
+public:
+   DriveState() : drv(-1), vs(-1) {}
+   DriveState(const DriveState &b);
+   virtual ~DriveState() {}
+   DriveState& operator=(const DriveState &b);
+   void clear();
+   inline bool empty() { return vs < 0; }
+   inline bool empty() const { return vs < 0; }
+public:
+   int drv;
+   int vs;
+};
+
+typedef std::vector<DriveState> DriveStateArray;
+
+#endif /*CHANGERSTATE_H_*/

src/compat/getline.c

@@ -0,0 +1,81 @@
+/*  getline.c
+ *
+ *  This file is part of vchanger by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2008-2013 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+ */
+
+#include "config.h"
+
+#ifndef HAVE_GETLINE
+
+#ifdef HAVE_WINDOWS_H
+#include "targetver.h"
+#endif
+#include <stdio.h>
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#include "compat/getline.h"
+
+/*
+ *   Emulate GNU extension function getline().
+ */
+ssize_t getline(char **lineptr, size_t *lineptr_sz, FILE *stream)
+{
+   int c;
+   size_t n = 0;
+
+   c = fgetc(stream);
+   if (c == EOF) {
+      return -1;
+   }
+   if (*lineptr == NULL) {
+      *lineptr_sz = 4096;
+      *lineptr = (char*)malloc(*lineptr_sz);
+      if (*lineptr == NULL) {
+         return -1;
+      }
+   }
+   while (c != EOF && c != '\n')
+   {
+      if (n + 1 >= *lineptr_sz) {
+         *lineptr_sz += 4096;
+         *lineptr = (char*)realloc(*lineptr, *lineptr_sz);
+         if (*lineptr == NULL) {
+            return -1;
+         }
+      }
+      (*lineptr)[n++] = (char)c;
+      c = fgetc(stream);
+   }
+   if (c == '\n') {
+      if (n && (*lineptr)[n-1] == '\r') {
+         (*lineptr)[n-1] = '\n';
+      } else {
+         (*lineptr)[n++] = '\n';
+      }
+   }
+   (*lineptr)[n] = 0;
+   return (ssize_t)n;
+}
+#endif

src/compat/getline.h

@@ -0,0 +1,38 @@
+/*  getline.h
+ *
+ *  This file is part of vchanger by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2008-2013 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+*/
+
+#ifndef _GETLINE_H_
+#define _GETLINE_H_
+
+#ifndef HAVE_GETLINE
+/* For systems without getline function, use internal version */
+#ifdef __cplusplus
+extern "C" {
+#endif
+ssize_t getline(char **lineptr, size_t *n, FILE *stream);
+#ifdef __cplusplus
+}
+#endif
+#endif
+
+#endif  /* _GETLINE_H */

src/compat/gettimeofday.c

@@ -0,0 +1,118 @@
+/*  gettimeofday.c
+ *
+ *  This file is part of vchanger by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2008-2013 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+ */
+
+#include "config.h"
+
+#ifndef HAVE_GETTIMEOFDAY
+
+#ifdef HAVE_WINDOWS_H
+#include "targetver.h"
+#include <windows.h>
+#endif
+#ifdef HAV_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_TIME_H
+#include <time.h>
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+#include "compat/gettimeofday.h"
+
+
+#ifndef HAVE_WINDOWS_H
+/*
+ *  Emulate POSIX.1-2001 gettimeofday() function using the time() function.
+ */
+int gettimeofday(struct timeval *tv, struct timezone* tz)
+{
+   if (tv != NULL) {
+      tv->tv_sec = time(NULL);
+      tv->tv_usec = 0;
+   }
+   if (tz != NULL) {
+      if (!tzflag) {
+         tzset();
+         tzflag++;
+      }
+      // Adjust for the timezone west of Greenwich
+      tz->tz_minuteswest = _timezone / 60;
+      tz->tz_dsttime = _daylight;
+   }
+   return 0;
+}
+
+#else
+
+/*
+ *  Emulate POSIX.1-2001 gettimeofday() function using the win32
+ *  GetSystemTimeAsFIleTime() system function.
+*/
+int gettimeofday(struct timeval *tv, struct timezone* tz)
+{
+   FILETIME ft;
+   int64_t tmpres = 0;
+   static int tzflag = 0;
+
+   if (tv != NULL) {
+      GetSystemTimeAsFileTime(&ft);
+
+      /* The GetSystemTimeAsFileTime returns the number of 100 nanosecond
+       * intervals since Jan 1, 1601 in a structure. Copy the high bits to
+       * the 64 bit tmpres, shift it left by 32 then or in the low 32 bits.
+       */
+      tmpres |= ft.dwHighDateTime;
+      tmpres <<= 32;
+      tmpres |= ft.dwLowDateTime;
+
+      /* Convert to microseconds by dividing by 10 */
+      tmpres /= 10;
+
+      /* The Unix epoch starts on Jan 1 1970.  Need to subtract the difference
+       * in seconds from Jan 1 1601.
+       */
+      tmpres -= DELTA_EPOCH_IN_MICROSECS;
+
+      /* Finally change microseconds to seconds and place in the seconds value.
+       * The modulus picks up the microseconds.
+       */
+      tv->tv_sec = tmpres / 1000000L;
+      tv->tv_usec = (tmpres % 1000000L);
+   }
+
+   if (NULL != tz) {
+      if (!tzflag) {
+         _tzset();
+         tzflag++;
+      }
+      // Adjust for the timezone west of Greenwich
+      tz->tz_minuteswest = _timezone / 60;
+      tz->tz_dsttime = _daylight;
+   }
+
+   return 0;
+}
+#endif
+
+#endif

src/compat/gettimeofday.h

@@ -0,0 +1,62 @@
+/*  gettimeofday.h
+ *
+ *  This file is part of vchanger by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2008-2013 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+*/
+
+#ifndef _GETTIMEOFDAY_H
+#define _GETTIMEOFDAY_H
+
+#ifndef HAVE_GETTIMEOFDAY
+/* For systems without gettimeofday function, use internal version */
+
+#ifdef HAVE_WINDOWS_H
+#define EPOCH_FILETIME (116444736000000000LL) // 100 ns intervals between FILETIME epoch and Unix epoch
+#if defined(_MSC_VER) || defined(_MSC_EXTENSIONS)
+  #define DELTA_EPOCH_IN_MICROSECS  11644473600000000Ui64
+#else
+  #define DELTA_EPOCH_IN_MICROSECS  11644473600000000ULL
+#endif
+
+#define suseconds_t long
+struct timeval
+{
+   time_t  tv_sec;
+   suseconds_t tv_usec;
+};
+
+struct timezone
+{
+   int tz_minuteswest;
+   int tz_dsttime;
+};
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+int gettimeofday(struct timeval *tv, struct timezone *tz);
+#ifdef __cplusplus
+}
+#endif
+#endif
+
+
+#endif  /* _GETTIMEOFDAY_H */

src/compat/getuid.c

@@ -0,0 +1,46 @@
+/*  getuid.c
+ *
+ *  This file is part of vchanger by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2008-2014 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+ */
+
+#include "config.h"
+
+#ifndef HAVE_GETUID
+
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#include "compat/getuid.h"
+
+/*
+ *   Emulate GNU extension function getline().
+ */
+uid_t getuid()
+{
+   return 999;
+}
+
+gid_t getgid()
+{
+   return 999;
+}
+
+#endif

src/compat/getuid.h

@@ -0,0 +1,45 @@
+/*  getuid.h
+*
+*  This file is part of vchanger by Josh Fisher.
+*
+*  vchanger copyright (C) 2008-2014 Josh Fisher
+*
+*  vchanger is free software.
+*  You may redistribute it and/or modify it under the terms of the
+*  GNU General Public License version 2, as published by the Free
+*  Software Foundation.
+*
+*  vchanger is distributed in the hope that it will be useful,
+*  but WITHOUT ANY WARRANTY; without even the implied warranty of
+*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+*  See the GNU General Public License for more details.
+*
+*  You should have received a copy of the GNU General Public License
+*  along with vchanger.  See the file "COPYING".  If not,
+*  write to:  The Free Software Foundation, Inc.,
+*             59 Temple Place - Suite 330,
+*             Boston,  MA  02111-1307, USA.
+*/
+
+#ifndef _GETUID_H_
+#define _GETUID_H_
+
+#ifndef HAVE_GETUID
+/* For systems without getuid function, use internal version */
+
+#ifdef HAVE_WINDOWS_H
+typedef unsigned int uid_t;
+typedef unsigned int gid_t;
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+uid_t getuid();
+gid_t getgid();
+#ifdef __cplusplus
+}
+#endif
+#endif
+
+#endif  /* _GETUID_H */

src/compat/localtime_r.c

@@ -0,0 +1,57 @@
+/*
+ *
+ *  This file is part of vchanger by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2008-2013 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+ */
+
+#include "config.h"
+
+#ifndef HAVE_LOCALTIME_R
+
+#ifdef HAVE_WINDOWS_H
+#include "targetver.h"
+#endif
+#ifdef HAVE_TIME_H
+#include <time.h>
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#include "compat/localtime_r.h"
+
+/*
+ *  Emulate SUSv2 localtime_r() function using C89 localtime(). On Win32
+ *  localtime() is thread safe. For all others, note that this keeps the
+ *  caller from using the unsafe buffer over any extended period,
+ *  but it is still not thread safe and will fail if two threads call this
+ *  function nearly simultaneously.
+ */
+struct tm* localtime_r(const time_t *timep, struct tm *buf)
+{
+   struct tm *tm1 = localtime(timep);
+   if (!tm1) return NULL;
+   memcpy(buf, tm1, sizeof(struct tm));
+   return buf;
+}
+
+#endif

src/compat/localtime_r.h

@@ -0,0 +1,39 @@
+/*
+ *
+ *  This file is part of vchanger by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2008-2013 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+ */
+
+#ifndef _LOCALTIME_R_H_
+#define _LOCALTIME_R_H_
+
+#ifndef HAVE_LOCALTIME_R
+/* For systems without localtime_r function, use internal version */
+#ifdef __cplusplus
+extern "C" {
+#endif
+struct tm* localtime_r(const time_t *timep, struct tm *buf);
+#ifdef __cplusplus
+}
+#endif
+#endif
+
+
+#endif /* _LOCALTIME_R_H_ */

src/compat/readlink.c

@@ -0,0 +1,126 @@
+/*  readlink.c
+ *
+ *  This file is part of vchanger by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2013 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+ */
+
+#include "config.h"
+
+#ifndef HAVE_READLINK
+
+#ifdef HAVE_WINDOWS_H
+#include "targetver.h"
+#include <windows.h>
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_STDDEF_H
+#include <stddef.h>
+#endif
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#ifdef HAVE_TIME_H
+#include <time.h>
+#endif
+#include "win32_util.h"
+#include "compat/readlink.h"
+
+#ifdef HAVE_WINDOWS_H
+
+/*-------------------------------------------------
+ *  Emulate POSIX.1-2001 readlink() function using win32/win64 CreateFileW()
+ *  and GetFinalPathNameByHandleW() functions.
+ *  On success returns the length of the target path string. On
+ *  error returns -1 and sets errno.
+ *-------------------------------------------------*/
+ssize_t readlink(const char *path_in, char *buf, size_t bufsiz)
+{
+   HANDLE hFS;
+   DWORD dw;
+   wchar_t *p16, *path = NULL;
+   size_t path_sz = 0;
+
+   /* Convert path string to UTF16 encoding */
+   if (!AnsiToUTF16(path_in, &path, &path_sz)) {
+      errno = w32errno(ERROR_BAD_PATHNAME);
+      return -1;
+   }
+   /* Check attributes of path to see if it is a symlink */
+   dw = GetFileAttributesW(path);
+   if (dw == INVALID_FILE_ATTRIBUTES) {
+      /* Error getting attributes */
+      errno = w32errno(GetLastError());
+      free(path);
+      return -1;
+   }
+   if ((dw & FILE_ATTRIBUTE_REPARSE_POINT) == 0) {
+      /* path does not point to a symlink */
+      errno = EINVAL;
+      return -1;
+   }
+   /* Get an open handle to the symlink's target file */
+   hFS = CreateFileW(path, FILE_READ_ATTRIBUTES, FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
+                     NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL);
+   if (hFS == INVALID_HANDLE_VALUE) {
+      /* Failed to open file */
+      errno = w32errno(GetLastError());
+      free(path);
+      return -1;
+   }
+   /* Get the full final UTF-16 path name of the opened file */
+   free(path);
+   path = (wchar_t*)malloc(65536);
+   dw = GetFinalPathNameByHandleW(hFS, path, 32768, FILE_NAME_OPENED);
+   if (dw == 0) {
+      /* Failed to get final path */
+      errno = w32errno(GetLastError());
+      CloseHandle(hFS);
+      free(path);
+      return -1;
+   }
+   /* Close file handle and get pointer to UTF-16 target path */
+   CloseHandle(hFS);
+   p16 = path;
+   if (path[0] == L'\\' && path[2] == L'?' && path[3] == L'\\') {
+      p16 = path + 4;
+      dw -= 4;
+   }
+   if (dw > bufsiz) {
+      /* Caller's buffer too small */
+      errno = EINVAL;
+      free(path);
+      return -1;
+   }
+   /* Convert target path to ANSI in caller's buffer */
+   if (!UTF16ToAnsi(p16, &buf, &bufsiz)) {
+      /* Failed to convert to ANSI */
+      errno = EINVAL;
+      free(path);
+      return -1;
+   }
+   free(path);
+   return strlen(buf);
+ }
+
+#endif
+
+#endif

src/compat/readlink.h

@@ -0,0 +1,42 @@
+/*  readlink.h
+ *
+ *  This file is part of vchanger by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2008-2013 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+*/
+
+#ifndef _READLINK_H
+#define _READLINK_H
+
+#ifndef HAVE_READLINK
+/* For systems without readlink function, use internal version */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+ssize_t readlink(const char *path, char *buf, size_t bufsiz);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+#endif  /* _READLINK_H */

src/compat/sleep.c

@@ -0,0 +1,39 @@
+/*  sleep.c
+ *
+ *  This file is part of vchanger by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2008-2014 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+ */
+
+#include "config.h"
+
+#ifdef HAVE_WINDOWS_H
+#include "targetver.h"
+#include "windows.h"
+
+/*
+ *   Emulate GNU extension function getline().
+ */
+unsigned int sleep(unsigned int seconds)
+{
+   Sleep(seconds * 1000);
+   return 0;
+}
+
+#endif

src/compat/sleep.h

@@ -0,0 +1,42 @@
+/*  sleep.h
+ *
+ *  This file is part of vchanger by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2008-2014 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+*/
+
+#ifndef _SLEEP_H
+#define _SLEEP_H
+
+#ifdef HAVE_WINDOWS_H
+/* For Windows provide sleep() function using Win32 API Sleep() */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+unsigned int sleep(unsigned int seconds);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+#endif  /* _SLEEP_H */

src/compat/symlink.c

@@ -0,0 +1,87 @@
+/*  symlink.c
+ *
+ *  This file is part of vchanger by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2013 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+ */
+
+#include "config.h"
+
+#ifndef HAVE_SYMLINK
+
+#ifdef HAVE_WINDOWS_H
+#include "targetver.h"
+#include <windows.h>
+#include "win32_util.h"
+#endif
+/*
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+*/
+#include "compat/symlink.h"
+
+#ifdef HAVE_WINDOWS_H
+
+/*-------------------------------------------------
+ *  Emulate POSIX.1-2001 symlink() function using win32/win64 CreateSymbolicLinkW() function.
+ *  On success returns zero, else negative on error.
+ *-------------------------------------------------*/
+int symlink(const char *oldpath, const char *newpath)
+{
+   DWORD rc, attr, dwFlags;
+   wchar_t *woldpath = NULL, *wnewpath = NULL;
+   size_t woldpath_sz = 0, wnewpath_sz = 0;
+
+   /* Convert path strings to UTF16 encoding */
+   if (!AnsiToUTF16(oldpath, &woldpath, &woldpath_sz)) {
+      rc = ERROR_BAD_PATHNAME;
+      errno = w32errno(rc);
+      return -1;
+   }
+   if (!AnsiToUTF16(newpath, &wnewpath, &wnewpath_sz)) {
+      rc = ERROR_BAD_PATHNAME;
+      errno = w32errno(rc);
+      free(woldpath);
+      return -1;
+   }
+   /* Determine if oldpath is a file or directory */
+   attr = GetFileAttributesW(woldpath);
+   if (attr == INVALID_FILE_ATTRIBUTES) {
+      free(woldpath);
+      free(wnewpath);
+      errno = w32errno(GetLastError());
+      return -1;
+   }
+   dwFlags = (attr & FILE_ATTRIBUTE_DIRECTORY) == 0 ? 0 : 1;
+   /* Create the symlink */
+   if (CreateSymbolicLinkW(wnewpath, woldpath, dwFlags)) {
+      free(woldpath);
+      free(wnewpath);
+      return 0;
+   }
+   free(woldpath);
+   free(wnewpath);
+   errno = w32errno(GetLastError());
+   return -1;
+}
+
+#endif
+
+#endif

src/compat/symlink.h

@@ -0,0 +1,42 @@
+/*  symlink.h
+ *
+ *  This file is part of vchanger by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2013 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+*/
+
+#ifndef _SYMLINK_H
+#define _SYMLINK_H
+
+#ifndef HAVE_SYMLINK
+/* For systems without symlink() function, use internal version */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int symlink(const char *oldpath, const char *newpath);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+#endif  /* _SYMLINK_H */

src/compat/syslog.c

@@ -0,0 +1,57 @@
+/*  compat_syslog.c
+ *
+ *  This file is part of vchanger by Josh Fisher.
+ *
+ *  Provide syslog() replacement function for non-POSIX systems.
+ *
+ *  vchanger copyright (C) 2008-2013 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+ */
+
+#include "config.h"
+
+#ifndef HAVE_SYSLOG
+
+#ifdef HAVE_STDARG_H
+#include <stdarg.h>
+#endif
+#include "compat/syslog.h"
+
+#ifdef HAVE_WINDOWS_H
+/*  Windows doesn't do syslog() ... ignore for now. Perhaps win32 event logging
+ *  could be used to emulate syslog in future.
+ */
+void openlog(const char *app, int option, int facility)
+{
+}
+
+void closelog(void)
+{
+}
+
+void syslog(int type, const char *fmt, ...)
+{
+}
+
+void vsyslog(int type, const char *fmt, va_list ap)
+{
+}
+
+#endif
+
+#endif

src/compat/syslog.h

@@ -0,0 +1,80 @@
+/*  compat_syslog.h
+ *
+ *  This file is part of vchanger by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2008-2013 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+*/
+
+#ifndef _COMPAT_SYSLOG_H_
+#define _COMPAT_SYSLOG_H_
+
+
+#ifndef HAVE_SYSLOG
+/*  For systems without syslog(), provide fake one */
+
+#define LOG_EMERG   0
+#define LOG_ALERT   1
+#define LOG_CRIT    2
+#define LOG_ERR     3
+#define LOG_WARNING 4
+#define LOG_NOTICE  5
+#define LOG_INFO    6
+#define LOG_DEBUG   7
+#define LOG_KERN    0
+#define LOG_USER    8
+#define LOG_MAIL    16
+#define LOG_DAEMON  24
+#define LOG_AUTH    32
+#define LOG_SYSLOG  40
+#define LOG_LPR     48
+#define LOG_NEWS    56
+#define LOG_UUCP    64
+#define LOG_CRON    72
+#define LOG_AUTHPRIV 80
+#define LOG_FTP     88
+#define LOG_LOCAL0  128
+#define LOG_LOCAL1  136
+#define LOG_LOCAL2  144
+#define LOG_LOCAL3  152
+#define LOG_LOCAL4  160
+#define LOG_LOCAL5  168
+#define LOG_LOCAL6  176
+#define LOG_LOCAL7  184
+#define LOG_PID     1
+#define LOG_CONS    2
+#define LOG_ODELAY  4
+#define LOG_NDELAY  8
+#define LOG_NOWAIT  16
+#define LOG_PERROR  32
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void syslog(int type, const char *fmt, ...);
+void vsyslog(int type, const char *fmt, va_list ap);
+void openlog(const char *app, int option, int facility);
+void closelog(void);
+
+#ifdef __cplusplus
+}
+#endif
+#endif
+
+#endif  /* __SYSLOG_H */

src/compat_defs.h

@@ -0,0 +1,37 @@
+/*  vchanger_common.h
+ *
+ *  This file is part of vchanger by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2008-2015 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+ */
+#ifndef _COMPAT_DEFS_H_
+#define _COMPAT_DEFS_H_ 1
+
+#ifdef HAVE_WINDOWS_H
+#include "targetver.h"
+#define DIR_DELIM "\\"
+#define DIR_DELIM_C '\\'
+#define MAG_VOLUME_MASK 0
+#else
+#define DIR_DELIM "/"
+#define DIR_DELIM_C '/'
+#define MAG_VOLUME_MASK S_IWGRP|S_IRWXO
+#endif
+
+#endif /* _VCHANGER_COMMON_H_ */

src/diskchanger.cpp

@@ -0,0 +1,993 @@
+/* diskchanger.cpp
+ *
+ *  This file is part of vchanger by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2008-2015 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+ *
+ *  The bulk of the work gets done by the DiskChanger class, which does
+ *  the actual "loading" and "unloading" of volumes.
+ */
+
+#include "config.h"
+#include "compat_defs.h"
+#ifdef HAVE_STDIO_H
+#include <stdio.h>
+#endif
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_DIRENT_H
+#include <dirent.h>
+#endif
+#ifdef HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#ifdef HAVE_TIME_H
+#include <time.h>
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#include "compat/gettimeofday.h"
+#include "compat/readlink.h"
+#include "compat/sleep.h"
+#include "compat/symlink.h"
+#include "util.h"
+#include "loghandler.h"
+#include "bconsole.h"
+#include "diskchanger.h"
+
+
+/*=================================================
+ *  Class DiskChanger
+ *=================================================*/
+
+/*-------------------------------------------------
+ * destructor
+ *-------------------------------------------------*/
+DiskChanger::~DiskChanger()
+{
+   Unlock();
+}
+
+
+/*-------------------------------------------------
+ *  Protected method to read previous state of magazine bays.
+ *  Returns zero on success, else negative and sets lasterr
+ *-------------------------------------------------*/
+void DiskChanger::InitializeMagazines()
+{
+   int n;
+   MagazineState m;
+
+   magazine.clear();
+   for (n = 0; (size_t)n < conf.magazine.size(); n++) {
+      m.SetBay(n, conf.magazine[n].c_str());
+      m.prev_num_slots = 0;
+      m.prev_start_slot = 0;
+      magazine.push_back(m);
+      /* Restore previous slot count and starting virtual slot */
+      magazine[n].restore();
+      /* Get mountpoint and build magazine slot array  */
+      magazine[n].Mount();
+   }
+}
+
+
+/*-------------------------------------------------
+ *  Protected method to find the start of an empty range of
+ *  'count' virtual slots, adding slots if needed.
+ *  Returns the starting slot number of the range found.
+ *------------------------------------------------*/
+int DiskChanger::FindEmptySlotRange(int count)
+{
+   VirtualSlot vs;
+   int start = 0, n = 1, found = 0;
+   /* Find next empty slot */
+   while (n < (int)vslot.size() && vslot[n].mag_bay >= 0) n++;
+   start = n;
+   while (n < (int)vslot.size() && found < count) {
+      if (vslot[n].mag_bay < 0) {
+         ++found;
+         ++n;
+      } else {
+         found = 0;
+         while (n < (int)vslot.size() && vslot[n].mag_bay >= 0) n++;
+         start = n;
+      }
+   }
+   if (found >= count) return start;
+   while (found < count) {
+      vs.vs = n++;
+      vslot.push_back(vs);
+      ++found;
+   }
+   return start;
+}
+
+/*-------------------------------------------------
+ *  Protected method to initialize array of virtual slot and
+ *  assign magazine volumes to virtual slots. When possible,
+ *  volumes are assigned to the same slot they were in
+ *  previously.
+ *------------------------------------------------*/
+void DiskChanger::InitializeVirtSlots()
+{
+   int s, m, v, last;
+   VirtualSlot vs;
+   bool found;
+
+   /* Create all known slots as initially empty */
+   vslot.clear();
+   for (s = 0; s <= dconf.max_slot; s++) {
+      vs.vs = s;
+      vslot.push_back(vs);
+   }
+   /* Re-create virtual slots that existed previously if possible */
+   for (m = 0; m < (int)magazine.size(); m++) {
+      /* Create slots if needed to match max slot used by previous magazines */
+      last = magazine[m].prev_start_slot + magazine[m].prev_num_slots;
+      if (last >= (int)vslot.size()) {
+         vs.clear();
+         while ((int)vslot.size() <= last) {
+            vs.vs = (int)vslot.size();
+            vslot.push_back(vs);
+         }
+      }
+      /* Check this magazine's slots */
+      if (magazine[m].empty()) {
+         log.Info("magazine %d is not mounted", m);
+         /* magazine is not currently mounted, so will have no slots assigned */
+         if (magazine[m].prev_start_slot) {
+            /* Since it was previously mounted, an 'update slots' is needed */
+            log.Warning("update slots needed. magazine %d no longer mounted; previous: %d volumes in slots %d-%d", m,
+                  magazine[m].prev_num_slots, magazine[m].prev_start_slot,
+                  magazine[m].prev_start_slot + magazine[m].prev_num_slots - 1);
+            needs_update = true;
+         }
+         continue;
+      }
+      /* Magazine is currently mounted, so check for change in slot assignment */
+      log.Info("magazine %d has %d volumes on %s", m, magazine[m].num_slots,
+                  magazine[m].mountpoint.c_str());
+      if (magazine[m].num_slots != magazine[m].prev_num_slots) {
+         /* Number of volumes has changed or magazine was not previously mounted, so
+          * needs new slot assignment and also 'update slots' will be needed */
+         log.Warning("update slots needed. magazine %d has %d volumes, previously had %d", m,
+                  magazine[m].num_slots, magazine[m].prev_num_slots);
+         needs_update = true;
+         continue;
+      }
+      if (magazine[m].num_slots == 0) {
+         /* Magazine has no volumes so needs no slot assignment */
+         continue;
+      }
+      /* Magazine is mounted, was previously mounted, and has the same volume count,
+       * so attempt to assign to the same slots previously assigned */
+      found = false;
+      for (v = magazine[m].prev_start_slot; v < (int)vslot.size(); v++) {
+         if (!vslot[v].empty()) {
+            found = true;
+            break;
+         }
+      }
+      if (found) {
+         /* Slot used previously has already been assigned to another magazine.
+          * Magazine will need to be assigned a new slot range, so an
+          * 'update slots' will also be needed. */
+         log.Warning("update slots needed. magazine %d previous slots %d-%d are not available", m,
+                  magazine[m].prev_start_slot, magazine[m].prev_start_slot + magazine[m].prev_num_slots - 1);
+         needs_update = true;
+         continue;
+      }
+      /* Assign this magazine's volumes to the same slots as previously assigned */
+      magazine[m].start_slot = magazine[m].prev_start_slot;
+      for (s = 0; s < magazine[m].num_slots; s++) {
+         v = magazine[m].start_slot + s;
+         vslot[v].mag_bay = m;
+         vslot[v].mag_slot = s;
+      }
+      log.Notice("%d volumes on magazine %d assigned slots %d-%d", magazine[m].num_slots, m,
+            magazine[m].start_slot, magazine[m].start_slot + magazine[m].num_slots - 1);
+   }
+
+   /* Assign slots to mounted magazines that have not already been assigned. */
+   for (m = 0; m < (int)magazine.size(); m++) {
+      if (magazine[m].empty() || magazine[m].start_slot > 0) continue;
+      if (magazine[m].num_slots == 0) continue;
+      magazine[m].start_slot = FindEmptySlotRange(magazine[m].num_slots);
+      for (s = 0; s < magazine[m].num_slots; s++) {
+         v = magazine[m].start_slot + s;
+         vslot[v].mag_bay = m;
+         vslot[v].mag_slot = s;
+      }
+      log.Notice("%d volumes on magazine %d assigned slots %d-%d", magazine[m].num_slots, m,
+            magazine[m].start_slot, magazine[m].start_slot + magazine[m].num_slots - 1);
+   }
+
+   /* Save updated state of magazines */
+   for (m = 0; m < (int)magazine.size(); m++) {
+      magazine[m].save();
+   }
+   /* Update dynamic configuration info */
+   if ((int)vslot.size() >= dconf.max_slot) {
+      dconf.max_slot = (int)vslot.size() - 1;
+      dconf.save();
+   }
+}
+
+
+/*-------------------------------------------------
+ *  Protected method to initialize state of virtual drives.
+ *  On success, returns zero. On error, returns non-zero.
+ *------------------------------------------------*/
+int DiskChanger::InitializeDrives()
+{
+   int n, rc, max_drive = -1;
+   DIR *d;
+   struct dirent *de;
+   DriveState ds;
+   tString tmp;
+
+   /* For each drive for which a state file exists. try to restore its state */
+   d = opendir(conf.work_dir.c_str());
+   if (!d) {
+      rc = errno;
+      verr.SetErrorWithErrno(rc, "error %d accessing work directory", rc);
+      log.Error("ERROR! %s", verr.GetErrorMsg());
+      return rc;
+   }
+   de = readdir(d);
+   while (de) {
+      /* Find next drive state file */
+      tmp = de->d_name;
+      if (tmp.find("drive_state-") == 0) {
+         tmp.erase(0, 12);
+         if (tmp.find_first_of("0123456789") == tString::npos) {
+            de = readdir(d);
+            continue;
+         }
+         if (tmp.find_first_not_of("0123456789") != tString::npos) {
+            de = readdir(d);
+            continue;
+         }
+         n = (int)strtol(tmp.c_str(), NULL, 10);
+         if (n > max_drive) max_drive = n;
+      }
+      de = readdir(d);
+   }
+   closedir(d);
+   if (max_drive < 0) {
+      /* No drive state files exist, so create at least one drive */
+      max_drive = 0;
+   }
+
+   /* Restore last known state of virtual drives where possible.  */
+   for (n = 0; n <= max_drive; n++) {
+      ds.drv = n;
+      drive.push_back(ds);
+      /* Attempt to restore drive's last state */
+      if (RestoreDriveState(n)) {
+         log.Error("ERROR! %s", verr.GetErrorMsg());
+      }
+   }
+   return 0;
+}
+
+
+/*-------------------------------------------------
+ *  Protected method to ensure that there are at least n drives
+ *------------------------------------------------*/
+void DiskChanger::SetMaxDrive(int need)
+{
+   int n = (int)drive.size();
+   DriveState ds;
+   while (n <= need) {
+      ds.drv = n++;
+      drive.push_back(ds);
+   }
+}
+
+/*
+ *  Method to create symlink for drive pointing to currently loaded volume file
+ */
+int DiskChanger::CreateDriveSymlink(int drv)
+{
+   int mag, mslot, rc;
+   tString sname, fname;
+   char lname[4096];
+
+   if (drv < 0 || drv >= (int)drive.size()) {
+      verr.SetError(EINVAL, "cannot create symlink for invalid drive %d", drv);
+      return EINVAL;
+   }
+   if (drive[drv].vs <= 0) {
+      verr.SetError(ENOENT, "cannot create symlink for unloaded drive %d", drv);
+      return ENOENT;
+   }
+   mag = vslot[drive[drv].vs].mag_bay;
+   mslot = vslot[drive[drv].vs].mag_slot;
+   fname = magazine[mag].GetVolumePath(mslot);
+   if (fname.empty()) {
+      verr.SetError(ENOENT, "cannot create symlink for unloaded drive %d", drv);
+      return ENOENT;
+   }
+   tFormat(sname, "%s%s%d", conf.work_dir.c_str(), DIR_DELIM, drv);
+   rc = readlink(sname.c_str(), lname, sizeof(lname));
+   if (rc > 0) {
+      if (rc >= (int)sizeof(lname)) {
+         verr.SetError(ENAMETOOLONG, "symlink target too long on readlink for drive %d", drv);
+         return ENAMETOOLONG;
+      }
+      lname[rc] = 0;
+      if (fname == lname) {
+         /* symlink already exists */
+         log.Info("found symlink for drive %d -> %s", drv, fname.c_str());
+         return 0;
+      }
+      /* Symlink points to wrong mountpoint, so delete and re-create */
+      if (RemoveDriveSymlink(drv)) return EEXIST;
+   }
+   if (symlink(fname.c_str(), sname.c_str())) {
+      rc = errno;
+      verr.SetErrorWithErrno(rc, "error %d creating symlink for drive %d", rc, drv);
+      return rc;
+   }
+   log.Notice("created symlink for drive %d -> %s", drv, fname.c_str());
+   return 0;
+}
+
+/*-------------------------------------------------
+ *  Method to delete this drive's symlink.
+ *  On success returns zero, else on error sets lasterr and
+ *  returns errno.
+ *-------------------------------------------------*/
+int DiskChanger::RemoveDriveSymlink(int drv)
+{
+   int rc;
+   tString sname;
+
+   if (drv < 0 || drv >= (int)drive.size()) {
+      verr.SetError(EINVAL, "cannot delete symlink for invalid drive %d", drv);
+      return EINVAL;
+   }
+   /* Remove symlink pointing to loaded volume file */
+   tFormat(sname, "%s%s%d", conf.work_dir.c_str(), DIR_DELIM, drv);
+   if (unlink(sname.c_str())) {
+      if (errno == ENOENT) return 0;  /* Ignore if not found */
+      /* System error preventing deletion of symlink */
+      rc = errno;
+      verr.SetErrorWithErrno(errno, "error %d deleting symlink for drive %d: ", rc, drv);
+      return rc;
+   }
+   log.Notice("deleted symlink for drive %d", drv);
+   return 0;
+}
+
+
+/*-------------------------------------------------
+ *  Method to save current drive state, device string and
+ *  volume label (filename), to a file in the work
+ *  directory named "drive_state-N", where N is the drive number.
+ *  On success returns zero, else on error sets lasterr and
+ *  returns errno.
+ *-------------------------------------------------*/
+int DiskChanger::SaveDriveState(int drv)
+{
+   mode_t old_mask;
+   FILE *FS;
+   int rc, mag, mslot;
+   tString sname;
+
+   if (drv < 0 || drv >= (int)drive.size()) {
+      verr.SetError(EINVAL, "cannot save state of invalid drive %d", drv);
+      return EINVAL;
+   }
+   /* Delete old state file */
+   tFormat(sname, "%s%sdrive_state-%d", conf.work_dir.c_str(), DIR_DELIM, drv);
+   if (drive[drv].empty()) {
+      if (access(sname.c_str(), F_OK) == 0) {
+         log.Notice("deleted state file for drive %d", drv);
+      }
+      unlink(sname.c_str());
+      return 0;
+   }
+   old_mask = umask(027);
+   FS = fopen(sname.c_str(), "w");
+   if (!FS) {
+      /* Unable to open state file */
+      rc = errno;
+      umask(old_mask);
+      verr.SetErrorWithErrno(rc, "failed opening state file for drive %d", drv);
+      return rc;
+   }
+   mag = vslot[drive[drv].vs].mag_bay;
+   mslot = vslot[drive[drv].vs].mag_slot;
+   if (fprintf(FS, "%s,%s\n", magazine[mag].mag_dev.c_str(),
+               magazine[mag].GetVolumeLabel(mslot)) < 0) {
+      /* I/O error writing state file */
+      rc = errno;
+      fclose(FS);
+      umask(old_mask);
+      verr.SetErrorWithErrno(rc, "error %d writing state file for drive %d", rc, drv);
+      return rc;
+   }
+   fclose(FS);
+   umask(old_mask);
+   log.Notice("wrote state file for drive %d", drv);
+   return 0;
+}
+
+
+/*-------------------------------------------------
+ *  Method to restore drive state from a file in the work directory
+ *  named "drive_state-N", where N is drive_number. If the volume
+ *  previously loaded is available, then restore drive to the loaded
+ *  state, otherwise set drive unloaded and remove the symlink and
+ *  state file for this drive.
+ *  On success returns zero, else on error sets lasterr and
+ *  returns errno.
+ *-------------------------------------------------*/
+int DiskChanger::RestoreDriveState(int drv)
+{
+   int rc, v, m, ms;
+   tString line, dev, labl;
+   size_t p;
+   struct stat st;
+   FILE *FS;
+   tString sname;
+
+   if (drv < 0 || drv >= (int)drive.size()) {
+      verr.SetError(EINVAL, "cannot restore state of invalid drive %d", drv);
+      return EINVAL;
+   }
+   drive[drv].clear();
+
+   /* Check for existing state file */
+   tFormat(sname, "%s%sdrive_state-%d", conf.work_dir.c_str(), DIR_DELIM, drv);
+   if (stat(sname.c_str(), &st)) {
+      /* drive state file not found, so drive is not loaded */
+      RemoveDriveSymlink(drv);
+      log.Info("drive %d previously unloaded", drv);
+      return 0;
+   }
+   /* Read loaded volume info from state file */
+   FS = fopen(sname.c_str(), "r");
+   if (!FS) {
+      /* Error opening state file, so leave drive unloaded */
+      verr.SetError(EACCES, "drive %d state file is not readable", drv);
+      return EACCES;
+   }
+   if (tGetLine(line, FS) == NULL) {
+      if (!feof(FS)) {
+         /* i/o error reading line from state file. Change state to unloaded */
+         rc = ferror(FS);
+         fclose(FS);
+         unlink(sname.c_str());
+         RemoveDriveSymlink(drv);
+         verr.SetErrorWithErrno(rc, "error %d reading state file for drive %d", rc, drv);
+         return rc;
+      }
+   }
+   fclose(FS);
+   tStrip(tRemoveEOL(line));
+   /* Extract the device drive was last loaded from */
+   p = 0;
+   rc = tParseCSV(dev, line, p);
+   if (rc != 1 || dev.empty()) {
+      /* Device string not found. Change state to unloaded. */
+      verr.SetError(EINVAL, "deleting corrupt state file for drive %d", drv);
+      unlink(sname.c_str());
+      RemoveDriveSymlink(drv);
+      return EINVAL;
+   }
+   /* Extract label of volume drive was last loaded from */
+   rc = tParseCSV(labl, line, p);
+   if (rc != 1 || labl.empty()) {
+      /* Label string not found. Change state to unloaded. */
+      verr.SetError(EINVAL, "deleting corrupt state file for drive %d", drv);
+      unlink(sname.c_str());
+      RemoveDriveSymlink(drv);
+      return EINVAL;
+   }
+
+   /* Find virtual slot assigned the volume file last loaded in drive */
+   for (v = 1; v < (int)vslot.size(); v++) {
+      if (labl == GetVolumeLabel(v)) break;
+   }
+   if (v >= (int)vslot.size()) {
+      /* Volume last loaded is no longer available. Change state to unloaded. */
+      log.Notice("volume %s no longer available, unloading drive %d",
+                  labl.c_str(), drv);
+      unlink(sname.c_str());
+      RemoveDriveSymlink(drv);
+      return 0;
+   }
+   drive[drv].vs = v;
+
+   /* Ensure symlink exists or create it */
+   if ((rc = CreateDriveSymlink(drv)) != 0) {
+      /* Unable to create symlink */
+      drive[drv].vs = -1;
+      log.Error("ERROR! %s", verr.GetErrorMsg());
+      return rc;
+   }
+
+   /* Assign drive to virtual slot */
+   vslot[v].drv = drv;
+   m = vslot[v].mag_bay;
+   ms = vslot[v].mag_slot;
+   log.Notice("drive %d previously loaded from slot %d (%s)", drv, v, magazine[m].GetVolumeLabel(ms));
+   return 0;
+}
+
+
+/*-------------------------------------------------
+ *  Method to initialize changer parameters and state of magazines,
+ *  virtual slots, and virtual drives.
+ *  On success, returns zero. On error, returns negative.
+ *  In either case, obtains a lock on the changer unless the lock operation
+ *  itself fails. The lock will be released when the DiskChanger object
+ *  is destroyed.
+ *------------------------------------------------*/
+int DiskChanger::Initialize()
+{
+   /* Make sure we have a lock on this changer */
+   if (Lock()) return verr.GetError();
+   magazine.clear();
+   vslot.clear();
+   drive.clear();
+   dconf.restore();
+   needs_update = false;
+
+   /* Initialize array of mounted magazines */
+   InitializeMagazines();
+
+   /* Initialize array of virtual slots */
+   InitializeVirtSlots();
+
+   /* Initialize array of virtual drives */
+   if (InitializeDrives()) return verr.GetError();
+
+   return 0;
+}
+
+
+/*-------------------------------------------------
+ *  Method to load virtual drive 'drv' from virtual slot 'slot'.
+ *  Returns zero on success, else sets lasterr and
+ *  returns negative.
+ *------------------------------------------------*/
+int DiskChanger::LoadDrive(int drv, int slot)
+{
+   int rc, m, ms;
+
+   if (!changer_lock) {
+      verr.SetError(EINVAL, "changer not initialized");
+      log.Error("ERROR! %s", verr.GetErrorMsg());
+      return EINVAL;
+   }
+   if (drv < 0) {
+      verr.SetError(EINVAL, "invalid drive number %d", drv);
+      log.Error("ERROR! %s", verr.GetErrorMsg());
+      return EINVAL;
+   }
+   SetMaxDrive(drv);
+   if (slot < 1 || slot >= (int)vslot.size()) {
+      verr.SetError(EINVAL, "cannot load drive %d from invalid slot %d", drv, slot);
+      log.Error("ERROR! %s", verr.GetErrorMsg());
+      return EINVAL;
+   }
+   if (!drive[drv].empty()) {
+      if (drive[drv].vs == slot) return 0;  /* already loaded from this slot */
+      verr.SetError(EBUSY, "drive %d already loaded from slot %d", drv, slot);
+      log.Error("ERROR! %s", verr.GetErrorMsg());
+      return EBUSY;
+   }
+   if (vslot[slot].empty()) {
+      verr.SetError(EINVAL, "cannot load drive %d from empty slot %d", drv, slot);
+      log.Error("ERROR! %s", verr.GetErrorMsg());
+      return ENOENT;
+   }
+   /* Create symlink for drive pointing to volume file */
+   drive[drv].vs = slot;
+   if ((rc = CreateDriveSymlink(drv))) {
+      drive[drv].vs = -1;
+      log.Error("ERROR! %s", verr.GetErrorMsg());
+      return rc;
+   }
+   /* Save state of newly loaded drive */
+   if ((rc = SaveDriveState(drv)) != 0) {
+      /* Error writing drive state file */
+      RemoveDriveSymlink(drv);
+      drive[drv].vs = -1;
+      log.Error("ERROR! %s", verr.GetErrorMsg());
+      return rc;
+   }
+   /* Assign virtual slot to drive */
+   vslot[slot].drv = drv;
+   m = vslot[slot].mag_bay;
+   ms = vslot[slot].mag_slot;
+   log.Notice("loaded drive %d from slot %d (%s)", drv, slot, magazine[m].GetVolumeLabel(ms));
+   return 0;
+}
+
+
+/*-------------------------------------------------
+ *  Method to unload volume in virtual drive 'drv'. Deletes symlink
+ *  and state file for the drive.
+ *  On success, returns zero. Otherwise sets lasterr and returns
+ *  errno.
+ *------------------------------------------------*/
+int DiskChanger::UnloadDrive(int drv)
+{
+   int rc;
+
+   if (!changer_lock) {
+      verr.SetError(EINVAL, "changer not initialized");
+      log.Error("ERROR! %s", verr.GetErrorMsg());
+      return EINVAL;
+   }
+   if (drv < 0) {
+      verr.SetError(EINVAL, "invalid drive number %d", drv);
+      log.Error("ERROR! %s", verr.GetErrorMsg());
+      return EINVAL;
+   }
+   SetMaxDrive(drv);
+   if (drive[drv].empty()) {
+      /* Drive is already empty so assume successful */
+      return 0;
+   }
+   /* Remove drive's symlink */
+   if ((rc = RemoveDriveSymlink(drv)) != 0) {
+      log.Error("ERROR! %s", verr.GetErrorMsg());
+      return rc;
+   }
+   /* Remove virtual slot assignment */
+   vslot[drive[drv].vs].drv = -1;
+   drive[drv].vs = -1;
+   /* Update drive state file (will delete state file due to negative slot number) */
+   if ((rc = SaveDriveState(drv)) != 0) {
+      log.Error("ERROR! %s", verr.GetErrorMsg());
+      return rc;
+   }
+   log.Notice("unloaded drive %d", drv);
+   return 0;
+}
+
+
+/*-------------------------------------------------
+ *  Method to create new volume files in virtual slots 'slot1' through 'slot2'.
+ *  Use volume labels (barcodes) of the form prefix + '_' + mag_slot_number, where
+ *  mag_slot_number is the magazine relative slot number of the magazine slot that
+ *  the virtual slot maps to. If 'label_prefix' is blank, then use the magazine name
+ *  of the magazine the virtual slot is mapped onto as the prefix.
+ *  Returns zero on success, else returns negative and sets lasterr.
+ *------------------------------------------------*/
+int DiskChanger::CreateVolumes(int bay, int count, int start, const char *label_prefix_in)
+{
+   MagazineSlot vol;
+   tString label, label_prefix(label_prefix_in);
+   int i;
+
+   if (!changer_lock) {
+      verr.SetError(EINVAL, "changer not initialized");
+      log.Error("ERROR! %s", verr.GetErrorMsg());
+      return -1;
+   }
+   if (bay < 0 || bay >= (int)magazine.size()) {
+      verr.SetError(EINVAL, "invalid magazine");
+      log.Error("ERROR! %s", verr.GetErrorMsg());
+      return -1;
+   }
+   if (count < 1) count = 1;
+   tStrip(tRemoveEOL(label_prefix));
+   if (label_prefix.empty()) {
+      /* Default prefix is storage-name_magazine-number */
+      tFormat(label_prefix, "%s_%d", conf.storage_name.c_str(), bay);
+   }
+   if (start < 0) {
+      /* Find highest uniqueness number for this filename prefix */
+      for (i = magazine[bay].num_slots * 5; i > 0; i--) {
+         tFormat(label, "%s_%d", label_prefix.c_str(), i);
+         if (magazine[bay].GetVolumeSlot(label) >= 0) break;
+      }
+      start = i;
+   }
+   for (i = 0; i < count; i++) {
+      tFormat(label, "%s_%d", label_prefix.c_str(), start);
+      if (!magazine[bay].empty()) {
+         while (magazine[bay].GetVolumeSlot(label) >= 0) {
+            ++start;
+            tFormat(label, "%s_%d", label_prefix.c_str(), start);
+         }
+      }
+      fprintf(stdout, "creating label '%s'\n", label.c_str());
+      if (magazine[bay].CreateVolume(label)) {
+         if (i) magazine[bay].save();
+         return -1;
+      }
+      ++start;
+   }
+   /* Update magazine state */
+   magazine[bay].save();
+   /* New mag state will require 'update slots' and 'label barcodes' in Bacula */
+   needs_update = true;
+   needs_label = true;
+   log.Notice("update slots needed. %d volumes added to magazine %d",count , bay);
+   return 0;
+}
+
+/*-------------------------------------------------
+ *  Method to cause Bacula to update its catalog to reflect
+ *  changes in the available volumes
+ *-------------------------------------------------*/
+int DiskChanger::UpdateBacula()
+{
+   int rc;
+   FILE *update_lock;
+   tString cmd;
+   char lockfile[4096];
+
+   /* Check if update needed */
+   if (!needs_update && !needs_label) return 0; /* Nothing to do */
+   /* Create update lock lockfile */
+   snprintf(lockfile, sizeof(lockfile), "%s%s%s.updatelock", conf.work_dir.c_str(), DIR_DELIM,
+         conf.storage_name.c_str());
+   rc = exclusive_fopen(lockfile, &update_lock);
+   if (rc == EEXIST) {
+      /* Update already in progress in another process, so skip */
+      return 0;
+   }
+   if (rc) {
+      /* error creating lockfile, so skip */
+      log.Error("bconsole: errno=%d creating update lockfile", rc);
+      if (needs_update)
+         log.Error("WARNING! 'update slots' needed in bconsole");
+      if (needs_label)
+         log.Error("WARNING! 'label barcodes' needed in bconsole");
+      return 0;
+   }
+   log.Debug("created update lockfile for pid %d", getpid());
+   /* Perform update slots command in bconsole */
+   if (needs_update) {
+      /* Issue update slots command in bconsole */
+      tFormat(cmd, "update slots storage=\"%s\"", conf.storage_name.c_str());
+      if(issue_bconsole_command(cmd.c_str())) {
+         log.Error("WARNING! 'update slots' needed in bconsole");
+      }
+   }
+   /* Perform label barcodes command in bconsole */
+   if (needs_label) {
+      tFormat(cmd, "label storage=\"%s\" pool=\"%s\" barcodes\nyes\nyes\n", conf.storage_name.c_str(),
+            conf.def_pool.c_str());
+      if (issue_bconsole_command(cmd.c_str())) {
+         log.Error("WARNING! 'label barcodes' needed in bconsole");
+      }
+   }
+   /* Obtain changer lock before removing update lock */
+   fclose(update_lock);
+   unlink(lockfile);
+   log.Debug("removed update lockfile for pid %d", getpid());
+   return 0;
+}
+
+
+/*-------------------------------------------------
+ *  Method to get label of volume in this slot
+ *-------------------------------------------------*/
+const char* DiskChanger::GetVolumeLabel(int slot)
+{
+   if (slot <= 0 || slot >= (int)vslot.size()) {
+      verr.SetError(-1, "volume label request from invalid slot %d", slot);
+      log.Error("ERROR! %s", verr.GetErrorMsg());
+      return NULL;
+   }
+   if (vslot[slot].empty()) return "";
+   return magazine[vslot[slot].mag_bay].GetVolumeLabel(vslot[slot].mag_slot);
+}
+
+
+/*-------------------------------------------------
+ *  Method to get filename path of volume in this slot
+ *-------------------------------------------------*/
+const char* DiskChanger::GetVolumePath(tString &path, int slot)
+{
+   path.clear();
+   if (slot <= 0 || slot >= (int)vslot.size()) {
+      verr.SetError(-1, "volume path request from invalid slot %d", slot);
+      log.Error("ERROR! %s", verr.GetErrorMsg());
+      return NULL;
+   }
+   if (vslot[slot].empty()) return path.c_str();
+   return magazine[vslot[slot].mag_bay].GetVolumePath(path, vslot[slot].mag_slot);
+}
+
+
+/*-------------------------------------------------
+ *  Protected method to lock changer device using a lock file such that
+ *  only one process at a time may execute changer commands on the
+ *  same autochanger. If another process has the lock, then this process
+ *  will sleep 1 second before trying again. This try/wait loop will continue
+ *  until the lock is obtained or 'timeout' seconds have expired. If
+ *  timeout = 0 then only tries to obtain lock once. If timeout < 0
+ *  then doesn't return until the lock is obtained.
+ *  On success, returns true. Otherwise on error or timeout, sets
+ *  lasterr negative and returns false.
+ *------------------------------------------------*/
+int DiskChanger::Lock(long timeout_seconds)
+{
+   int rc;
+   time_t timeout = 0;
+   char lockfile[4096];
+
+   if (changer_lock) return 0;
+
+   if (timeout_seconds < 0) {
+      timeout_seconds = 3600 * 24 * 365;
+   }
+   if (timeout_seconds > 0) {
+      timeout = time(NULL) + timeout_seconds;
+   }
+   snprintf(lockfile, sizeof(lockfile), "%s%s%s.lock", conf.work_dir.c_str(), DIR_DELIM,
+         conf.storage_name.c_str());
+   rc = exclusive_fopen(lockfile, &changer_lock);
+   if (rc == EEXIST && timeout == 0) {
+      /* timeout=0 means do not wait */
+      verr.SetErrorWithErrno(rc, "cannot open lockfile");
+      log.Error("ERROR! %s", verr.GetErrorMsg());
+      return -1;
+   }
+   while (rc == EEXIST) {
+      /* sleep before trying again */
+      sleep(1);
+      if (time(NULL) > timeout) {
+         verr.SetError(EBUSY, "timeout waiting for lockfile");
+         log.Error("ERROR! %s", verr.GetErrorMsg());
+         return EACCES;
+      }
+      rc = exclusive_fopen(lockfile, &changer_lock);
+   }
+   if (rc) {
+      verr.SetErrorWithErrno(rc, "cannot open lockfile");
+      log.Error("ERROR! %s", verr.GetErrorMsg());
+      return -1;
+   }
+   /* Write PID to lockfile and leave open for exclusive R/W */
+   fprintf(changer_lock, "%d", getpid());
+   fflush(changer_lock);
+   log.Debug("created lockfile for pid %d", getpid());
+   return 0;
+}
+
+/*-------------------------------------------------
+ *  Protected method to unlock changer device
+ *------------------------------------------------*/
+void DiskChanger::Unlock()
+{
+   char lockfile[4096];
+   if (!changer_lock) return;
+   fclose(changer_lock);
+   changer_lock = NULL;
+   snprintf(lockfile, sizeof(lockfile), "%s%s%s.lock", conf.work_dir.c_str(), DIR_DELIM,
+         conf.storage_name.c_str());
+   log.Debug("removing lockfile for pid %d", getpid());
+   unlink(lockfile);
+}
+
+
+/*-------------------------------------------------
+ *  Method returns true if magazine is not mounted,
+ *  else returns false.
+ *------------------------------------------------*/
+bool DiskChanger::MagazineEmpty(int mag) const
+{
+   if (mag < 0 || mag >= (int)magazine.size()) return true;
+   return magazine[mag].empty();
+}
+
+
+/*-------------------------------------------------
+ *  Method returns true if no magazine volume is assigned
+ *  to virtual slot, else returns false.
+ *------------------------------------------------*/
+bool DiskChanger::SlotEmpty(int slot) const
+{
+   if (slot <= 0 || slot >= (int)vslot.size()) return true;
+   return vslot[slot].empty();
+}
+
+
+/*-------------------------------------------------
+ *  Method returns true if no magazine volume is loaded
+ *  into drive drv, else returns false.
+ *------------------------------------------------*/
+bool DiskChanger::DriveEmpty(int drv) const
+{
+   if (drv < 0 || drv >= (int)drive.size()) return true;
+   return drive[drv].empty();
+}
+
+
+/*-------------------------------------------------
+ *  Method to get virtual slot currently loaded in virtual drive 'drv'.
+ *  If drive is loaded then returns the virtual slot number of the
+ *  loaded volume. If unloaded, returns zero.
+ *------------------------------------------------*/
+int DiskChanger::GetDriveSlot(int drv) const
+{
+   if (drv < 0 || drv >= (int)drive.size()) return 0;
+   return drive[drv].vs;
+}
+
+
+/*-------------------------------------------------
+ *  Method to get drive a virtual slot is currently loaded in.
+ *  Returns the drive number a slot's volume is loaded in.
+ *  If unloaded, returns negative.
+ *------------------------------------------------*/
+int DiskChanger::GetSlotDrive(int slot) const
+{
+   if (slot <= 0 || slot >= (int)vslot.size()) return -1;
+   return vslot[slot].drv;
+}
+
+
+/*-------------------------------------------------
+ *  Method to return number of volumes on magazine 'mag'.
+ *------------------------------------------------*/
+int DiskChanger::GetMagazineSlots(int mag) const
+{
+   if (mag < 0 || mag >= (int)magazine.size()) return 0;
+   return magazine[mag].num_slots;
+}
+
+
+/*-------------------------------------------------
+ *  Method to return the start of the virtual slot range
+ *  that is assigned to magazine 'mag' volumes.
+ *------------------------------------------------*/
+int DiskChanger::GetMagazineStartSlot(int mag) const
+{
+   if (mag < 0 || mag >= (int)magazine.size()) return 0;
+   return magazine[mag].start_slot;
+}
+
+
+/*-------------------------------------------------
+ *  Method to return the mountpoint of magazine 'mag'.
+ *------------------------------------------------*/
+const char* DiskChanger::GetMagazineMountpoint(int mag) const
+{
+   if (mag < 0 || mag >= (int)magazine.size()) return "";
+   return magazine[mag].mountpoint.c_str();
+}

src/diskchanger.h

@@ -0,0 +1,80 @@
+/* diskchanger.h
+ *
+ *  This file is part of vchanger by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2008-2015 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+ */
+#ifndef DISKCHANGER_H_
+#define DISKCHANGER_H_
+
+#include "vconf.h"
+#include "errhandler.h"
+#include "changerstate.h"
+
+class DiskChanger
+{
+public:
+   DiskChanger() : changer_lock(NULL), needs_update(false), needs_label(false)  {}
+   virtual ~DiskChanger();
+   int Initialize();
+   int LoadDrive(int drv, int slot);
+   int UnloadDrive(int drv);
+   int CreateVolumes(int bay, int count, int start = -1, const char *label_prefix = "");
+   int UpdateBacula();
+   const char* GetVolumeLabel(int slot);
+   const char* GetVolumePath(tString &fname, int slot);
+   bool MagazineEmpty(int bay) const;
+   bool SlotEmpty(int slot) const;
+   bool DriveEmpty(int drv) const;
+   int GetDriveSlot(int drv) const;
+   int GetSlotDrive(int slot) const;
+   int GetMagazineSlots(int mag) const;
+   int GetMagazineStartSlot(int mag) const;
+   const char* GetMagazineMountpoint(int mag) const;
+   inline int NumDrives() { return (int)drive.size(); }
+   inline int NumMagazines() { return (int)magazine.size(); }
+   inline int NumSlots() { return (int)vslot.size() - 1; }
+   inline int GetError() { return verr.GetError(); }
+   inline const char* GetErrorMsg() const { return verr.GetErrorMsg(); }
+   inline bool NeedsUpdate() const { return needs_update; }
+   inline bool NeedsLabel() const { return needs_label; }
+   int Lock(long timeout = 30);
+   void Unlock();
+protected:
+   void InitializeMagazines();
+   int FindEmptySlotRange(int count);
+   int InitializeDrives();
+   void InitializeVirtSlots();
+   void SetMaxDrive(int n);
+   int CreateDriveSymlink(int drv);
+   int RemoveDriveSymlink(int drv);
+   int SaveDriveState(int drv);
+   int RestoreDriveState(int drv);
+protected:
+   FILE *changer_lock;
+   bool needs_update;
+   bool needs_label;
+   ErrorHandler verr;
+   DynamicConfig dconf;
+   MagazineStateArray magazine;
+   DriveStateArray drive;
+   VirtualSlotArray vslot;
+};
+
+#endif /*DISKCHANGER_H_*/

src/errhandler.cpp

@@ -0,0 +1,73 @@
+/* errhandler.cpp
+ *
+ *  This file is part of vchanger by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2008-2014 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+ *
+ *  Provides a class for logging messages to a file
+ */
+
+#include "config.h"
+#include <stdio.h>
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#ifdef HAVE_STDARG_H
+#include <stdarg.h>
+#endif
+#ifdef HAVE_VARARGS_H
+#include <varargs.h>
+#endif
+
+#include "errhandler.h"
+
+///////////////////////////////////////////////////
+//  Class ErrorHandler
+///////////////////////////////////////////////////
+
+/*-------------------------------------------------
+ *  Method to set error and error message
+ *------------------------------------------------*/
+void ErrorHandler::SetError(int errnum, const char *fmt, ...)
+{
+   va_list vl;
+   char buf[4096];
+   err = errnum;
+   va_start(vl, fmt);
+   vsnprintf(buf, sizeof(buf), fmt, vl);
+   va_end(vl);
+   msg = buf;
+}
+
+/*-------------------------------------------------
+ *  Method to set error and error message and append the text
+ *  returned from strerror(errnum).
+ *------------------------------------------------*/
+void ErrorHandler::SetErrorWithErrno(int errnum, const char *fmt, ...)
+{
+   va_list vl;
+   char buf[4096];
+   err = errnum;
+   va_start(vl, fmt);
+   vsnprintf(buf, sizeof(buf), fmt, vl);
+   va_end(vl);
+   msg = buf;
+   msg += ": ";
+   msg += strerror(err);
+}

src/errhandler.h

@@ -0,0 +1,43 @@
+/*  errhandler.h
+ *
+ *  This file is part of vchanger by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2008-2014 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+*/
+#ifndef _ERRHANDLER_H_
+#define _ERRHANDLER_H_ 1
+
+#include "tstring.h"
+
+class ErrorHandler
+{
+public:
+   ErrorHandler() : err(0) {}
+   ~ErrorHandler() {}
+   inline void clear() { err = 0; msg.clear(); }
+   void SetError(int errnum, const char *fmt, ...);
+   void SetErrorWithErrno(int errnum, const char *fmt, ...);
+   inline const char* GetErrorMsg() const { return msg.c_str(); }
+   inline int GetError() { return err; }
+protected:
+   int err;
+   tString msg;
+};
+
+#endif /* _ERRHANDLER_H_ */

src/inifile.h

@@ -0,0 +1,190 @@
+/*  inifile.h
+ *
+ *  Copyright (C) 2013-2014 Josh Fisher
+ *
+ *  This program is free software. You may redistribute it and/or modify
+ *  it under the terms of the GNU General Public License, as published by
+ *  the Free Software Foundation; either version 2, or (at your option)
+ *  any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ *  General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  See the file "COPYING".  If not,
+ *  see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _INIPARSE_H_
+#define _INIPARSE_H_ 1
+
+#include <list>
+#include "tstring.h"
+
+#define INIKEYWORDTYPE_SECTION      0
+#define INIKEYWORDTYPE_ORDERED_SECTION     1
+#define INIKEYWORDTYPE_SZ		      2
+#define INIKEYWORDTYPE_MULTISZ      3
+#define INIKEYWORDTYPE_LONGLONG     4
+#define INIKEYWORDTYPE_ULONGLONG    5
+#define INIKEYWORDTYPE_LONG         6
+#define INIKEYWORDTYPE_ULONG        7
+#define INIKEYWORDTYPE_INT          8
+#define INIKEYWORDTYPE_UINT         9
+#define INIKEYWORDTYPE_SHORT        10
+#define INIKEYWORDTYPE_USHORT       11
+#define INIKEYWORDTYPE_CHAR         12
+#define INIKEYWORDTYPE_UCHAR        13
+#define INIKEYWORDTYPE_LONGDOUBLE   14
+#define INIKEYWORDTYPE_DOUBLE       15
+#define INIKEYWORDTYPE_FLOAT		   16
+#define INIKEYWORDTYPE_BOOL		   17
+
+class IniValue
+{
+public:
+   IniValue() : type(INIKEYWORDTYPE_SZ) {}
+   IniValue(const IniValue &b) : type(b.type), value(b.value) {}
+   virtual ~IniValue() {}
+   IniValue& operator=(const IniValue &b);
+   IniValue& operator=(const tStringArray &b);
+   IniValue& operator=(const tString &b);
+   IniValue& operator=(const char *b);
+   IniValue& operator=(long long b);
+   IniValue& operator=(unsigned long long b);
+   IniValue& operator=(long b);
+   IniValue& operator=(unsigned long b);
+   IniValue& operator=(int b);
+   IniValue& operator=(unsigned int b);
+   IniValue& operator=(short b);
+   IniValue& operator=(unsigned short b);
+   IniValue& operator=(char b);
+   IniValue& operator=(unsigned char b);
+   IniValue& operator=(long double b);
+   IniValue& operator=(double b);
+   IniValue& operator=(float b);
+   IniValue& operator=(bool b);
+   IniValue& operator+=(const IniValue &b);
+   IniValue& operator+=(const tStringArray &b);
+   IniValue& operator+=(const tString &b);
+   IniValue& operator+=(const char *b);
+   IniValue& operator+=(const char c);
+   long long GetLONG() const;
+   unsigned long long GetULONG() const;
+   long double GetDOUBLE() const;
+   bool GetBOOL() const;
+   const char* GetSZ() const;
+   const tString& GetString() const;
+   size_t size() const;
+   inline void SetType(int newtype) { type = newtype; }
+   inline void clear() { value.clear(); }
+   inline int GetType() const { return type; }
+   inline bool empty() const { return size() == 0; }
+   inline bool IsSet() const { return value.size() != 0; }
+   inline operator long long() { return GetLONG(); }
+   inline operator unsigned long long() { return GetULONG(); }
+   inline operator long() { return (long)GetLONG(); }
+   inline operator unsigned long() { return (unsigned long)GetULONG(); }
+   inline operator int() { return (int)GetULONG(); }
+   inline operator unsigned int() { return (unsigned int)GetULONG(); }
+   inline operator short() { return (short)GetULONG(); }
+   inline operator unsigned short() { return (unsigned short)GetULONG(); }
+   inline operator char() { return (char)GetULONG(); }
+   inline operator unsigned char() { return (unsigned char)GetULONG(); }
+   inline operator long double() { return GetDOUBLE(); }
+   inline operator double() { return (double)GetDOUBLE(); }
+   inline operator float() { return (float)GetDOUBLE(); }
+   inline operator bool() { return GetBOOL(); }
+   inline operator const char*() const { return GetSZ(); }
+   inline operator const tString&() const { return GetString(); }
+   inline operator const tStringArray&() const { return value; }
+   friend class IniFile;
+protected:
+   int type;
+   tStringArray value;
+};
+
+
+class IniValuePair
+{
+public:
+   IniValuePair() {}
+   virtual ~IniValuePair() {}
+   inline IniValuePair& operator=(const IniValuePair &b)
+   {
+      if (&b != this) {
+         key = b.key;
+         value = b.value;
+      }
+      return *this;
+   }
+public:
+   tString key;
+   IniValue value;
+};
+
+typedef std::list<IniValuePair> IniValuePairList;
+
+class IniFile
+{
+public:
+   IniFile() {}
+   IniFile(const IniFile &b);
+   virtual ~IniFile() {}
+   IniFile& operator=(const IniFile &b);
+   IniValue& operator[](const char *key);
+   inline IniValue& operator[](const tString &key) { return operator[](key.c_str()); }
+   inline const IniValue& operator[](const char *key) const
+      { return (const IniValue&)((*this)[key]); }
+   inline const IniValue& operator[](const tString &key) const
+      { return (const IniValue&)((*this)[key.c_str()]); }
+   bool AddKeyword(const char *kw, int kwtype = INIKEYWORDTYPE_SZ);
+   inline bool AddKeyword(const tString &kw, int kwtype = INIKEYWORDTYPE_SZ)
+      { return AddKeyword(kw.c_str(), kwtype); }
+   bool AddSection(const char *sect, bool is_ordered = false);
+   inline bool AddSection(const tString &sect, bool is_ordered = false)
+      { return AddSection(sect.c_str(), is_ordered); }
+   bool AddSectionKeyword(const char *sect, const char *kw, int kwtype = INIKEYWORDTYPE_SZ);
+   inline bool AddSectionKeyword(const tString &sect, const char *kw, int kwtype = INIKEYWORDTYPE_SZ)
+      { return AddSectionKeyword(sect.c_str(), kw, kwtype); }
+   inline bool AddSectionKeyword(const char *sect, const tString &kw, int kwtype = INIKEYWORDTYPE_SZ)
+      { return AddSectionKeyword(sect, kw.c_str(), kwtype); }
+   inline bool AddSectionKeyword(const tString &sect, const tString &kw, int kwtype = INIKEYWORDTYPE_SZ)
+      { return AddSectionKeyword(sect.c_str(), kw.c_str(), kwtype); }
+   inline bool KeywordExists(const char *kw) { return FindValue(kw) != kwmap.end(); }
+   inline bool KeywordExists(const tString &kw) { return FindValue(kw.c_str()) != kwmap.end(); }
+   inline bool SectionExists(const char *sect) { return FindSection(sect) != kwmap.end(); }
+   inline bool SectionExists(const tString &sect) { return FindSection(sect.c_str()) != kwmap.end(); }
+   bool GetKey(const char *key, tString &base, size_t &ndx, tString &sect, tString &kw);
+   bool GetKey(const tString &key, tString &base, size_t &ndx, tString &sect, tString &kw)
+      { return GetKey(key.c_str(), base, ndx, sect, kw); }
+   void ClearKeywordValues();
+   bool Update(const IniFile &b);
+   int Read(FILE* stream_in);
+   int Read(const char *fname);
+   inline int Read(const tString &fname) { return Read(fname.c_str()); }
+   size_t GetSetKeywords(tStringArray &kw);
+   size_t GetKeywords(tStringArray &kw);
+   inline void clear() { kwmap.clear(); }
+   inline bool empty() { return kwmap.empty(); }
+   inline tString GetErrorMessage() { return err_msg; }
+protected:
+   bool ParseKey(const char *key, tString &base, size_t &ndx, tString &sect, tString &kw);
+   inline bool ParseKey(const tString &key, tString &base, size_t &ndx, tString &sect, tString &kw)
+      { return ParseKey(key.c_str(), base, ndx, sect, kw); }
+   IniValuePairList::iterator FindKey(const char *key);
+   inline IniValuePairList::iterator FindKey(const tString &key) { return FindKey(key.c_str()); }
+   IniValuePairList::iterator FindValue(const char *key);
+   inline IniValuePairList::iterator FindValue(const tString &key) { return FindValue(key.c_str()); }
+   IniValuePairList::iterator FindSection(const char *sect);
+   inline IniValuePairList::iterator FindSection(const tString &sect) { return FindSection(sect.c_str()); }
+   int ReadToken(FILE* fs, tString &str);
+protected:
+   IniValuePairList kwmap;
+   IniValue bogus;
+   tString err_msg;
+};
+
+#endif /* _INIPARSE_H_ */

src/loghandler.cpp

@@ -0,0 +1,206 @@
+/* loghandler.cpp
+ *
+ *  Copyright (C) 2013-2014 Josh Fisher
+ *
+ *  This program is free software. You may redistribute it and/or modify
+ *  it under the terms of the GNU General Public License, as published by
+ *  the Free Software Foundation; either version 2, or (at your option)
+ *  any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ *  General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  See the file "COPYING".  If not,
+ *  see <http://www.gnu.org/licenses/>.
+*/
+
+#include "config.h"
+#include "compat_defs.h"
+#ifdef HAVE_STDIO_H
+#include <stdio.h>
+#endif
+#ifdef HAVE_TIME_H
+#include <time.h>
+#endif
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#ifdef HAVE_STDARG_H
+#include <stdarg.h>
+#endif
+#ifndef HAVE_LOCALTIME_R
+#include "compat/localtime_r.h"
+#endif
+#define LOGHANDLER_SOURCE 1
+#include "loghandler.h"
+
+LogHandler log;
+
+LogHandler::LogHandler() : use_syslog(false), max_debug_level(LOG_WARNING), errfs(stderr)
+{
+#ifdef HAVE_PTHREAD_H
+   pthread_mutex_init(&mut, NULL);
+#endif
+}
+
+LogHandler::~LogHandler()
+{
+   if (use_syslog) closelog();
+#ifdef HAVE_PTHREAD_H
+   pthread_mutex_destroy(&mut);
+#endif
+}
+
+void LogHandler::OpenLog(FILE *fs, int max_level)
+{
+   Lock();
+   if (use_syslog) closelog();
+   if (max_level < LOG_EMERG || max_level > LOG_DEBUG) max_level = LOG_DEBUG;
+   errfs = fs;
+   use_syslog = false;
+   max_debug_level = max_level;
+   Unlock();
+}
+
+void LogHandler::OpenLog(const char *ident, int facility, int max_level,
+                         int syslog_options)
+{
+   Lock();
+   if (use_syslog) closelog();
+   if (facility < LOG_KERN || facility > LOG_LOCAL7) facility = LOG_DAEMON;
+   if (max_level < LOG_EMERG || max_level > LOG_DEBUG) max_level = LOG_DEBUG;
+   openlog(ident, syslog_options, facility);
+   use_syslog = true;
+   errfs = stderr;
+   if (errfs == NULL) errfs = stderr;
+   max_debug_level = max_level;
+   Unlock();
+}
+
+void LogHandler::Emergency(const char *fmt, ...)
+{
+   va_list vl;
+   va_start(vl, fmt);
+   WriteLog(LOG_EMERG, fmt, vl);
+   va_end(vl);
+}
+
+void LogHandler::Alert(const char *fmt, ...)
+{
+   va_list vl;
+   va_start(vl, fmt);
+   WriteLog(LOG_ALERT, fmt, vl);
+   va_end(vl);
+}
+
+void LogHandler::Critical(const char *fmt, ...)
+{
+   va_list vl;
+   va_start(vl, fmt);
+   WriteLog(LOG_CRIT, fmt, vl);
+   va_end(vl);
+}
+
+void LogHandler::Error(const char *fmt, ...)
+{
+   va_list vl;
+   va_start(vl, fmt);
+   WriteLog(LOG_ERR, fmt, vl);
+   va_end(vl);
+}
+
+void LogHandler::Warning(const char *fmt, ...)
+{
+   va_list vl;
+   va_start(vl, fmt);
+   WriteLog(LOG_WARNING, fmt, vl);
+   va_end(vl);
+}
+
+void LogHandler::Notice(const char *fmt, ...)
+{
+   va_list vl;
+   va_start(vl, fmt);
+   WriteLog(LOG_NOTICE, fmt, vl);
+   va_end(vl);
+}
+
+void LogHandler::Info(const char *fmt, ...)
+{
+   va_list vl;
+   va_start(vl, fmt);
+   WriteLog(LOG_INFO, fmt, vl);
+   va_end(vl);
+}
+
+void LogHandler::Debug(const char *fmt, ...)
+{
+   va_list vl;
+   va_start(vl, fmt);
+   WriteLog(LOG_DEBUG, fmt, vl);
+   va_end(vl);
+}
+
+void LogHandler::MajorDebug(const char *fmt, ...)
+{
+#ifdef MAJOR_DEBUG
+   va_list vl;
+   va_start(vl, fmt);
+   WriteLog(LOG_DEBUG, fmt, vl);
+   va_end(vl);
+#endif
+}
+
+// Method to acquire mutex lock
+void LogHandler::Lock()
+{
+#ifdef HAVE_PTHREAD_H
+   pthread_mutex_lock(&mut);
+#endif
+}
+
+// Method to release mutex lock
+void LogHandler::Unlock()
+{
+#ifdef HAVE_PTHREAD_H
+   pthread_mutex_unlock(&mut);
+#endif
+}
+
+// Method to write to log
+void LogHandler::WriteLog(int priority, const char *fmt, va_list vl)
+{
+   size_t n;
+   struct tm bt;
+   time_t t;
+   char buf[1024];
+   Lock();
+   if (priority > max_debug_level || priority < LOG_EMERG || !fmt) {
+      Unlock();
+      return;
+   }
+   t = time(NULL);
+   localtime_r(&t, &bt);
+   strftime(buf, 100, "%b %d %T: ", &bt);
+   strncpy(buf + strlen(buf), fmt, sizeof(buf) - strlen(buf));
+   if (use_syslog) vsyslog(priority, buf, vl);
+   else {
+      n = strlen(buf);
+      if (!n) {
+         fprintf(errfs, "\n");
+      } else {
+         vfprintf(errfs, buf, vl);
+         if (buf[n - 1] != '\n') {
+            fprintf(errfs, "\n");
+         }
+         fflush(errfs);
+      }
+   }
+   Unlock();
+}

src/loghandler.h

@@ -0,0 +1,70 @@
+/*  loghandler.h
+ *
+ *  Copyright (C) 2013-2014 Josh Fisher
+ *
+ *  This program is free software. You may redistribute it and/or modify
+ *  it under the terms of the GNU General Public License, as published by
+ *  the Free Software Foundation; either version 2, or (at your option)
+ *  any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ *  General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  See the file "COPYING".  If not,
+ *  see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _LOGHANDLER_H_
+#define _LOGHANDLER_H_ 1
+
+#ifdef HAVE_SYSLOG_H
+#include <syslog.h>
+#else
+#include "compat/syslog.h"
+#endif
+#ifdef HAVE_STDARG_H
+#include <stdarg.h>
+#endif
+#ifdef HAVE_PTHREAD_H
+#include <pthread.h>
+#endif
+
+class LogHandler
+{
+public:
+   LogHandler();
+   virtual ~LogHandler();
+   void OpenLog(FILE *fs, int max_level = LOG_WARNING);
+   void OpenLog(const char *ident = NULL, int facility = LOG_DAEMON,
+      int max_level = LOG_WARNING, int syslog_options = 0);
+   void Emergency(const char *fmt, ... );
+   void Alert(const char *fmt, ... );
+   void Critical(const char *fmt, ... );
+   void Error(const char *fmt, ... );
+   void Warning(const char *fmt, ... );
+   void Notice(const char *fmt, ... );
+   void Info(const char *fmt, ... );
+   void Debug(const char *fmt, ... );
+   void MajorDebug(const char *fmt, ... );
+   inline bool UsingSyslog() { return use_syslog; }
+protected:
+   void Lock();
+   void Unlock();
+   void WriteLog(int priority, const char *fmt, va_list vl);
+protected:
+   bool use_syslog;
+   int max_debug_level;
+   FILE *errfs;
+#ifdef HAVE_PTHREAD_H
+   pthread_mutex_t mut;
+#endif
+};
+
+#ifndef LOGHANDLER_SOURCE
+extern LogHandler log;
+#endif
+
+#endif /* _LOGHANDLER_H_ */

src/mypopen.cpp

@@ -0,0 +1,726 @@
+/* mypopen.cpp
+ *
+ *  Copyright (C) 2013-2014 Josh Fisher
+ *
+ *  This program is free software. You may redistribute it and/or modify
+ *  it under the terms of the GNU General Public License, as published by
+ *  the Free Software Foundation; either version 2, or (at your option)
+ *  any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ *  General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  See the file "COPYING".  If not,
+ *  see <http://www.gnu.org/licenses/>.
+*/
+
+#include "config.h"
+#include <stdio.h>
+#include <stdlib.h>
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#ifdef HAVE_CTYPE_H
+#include <ctype.h>
+#endif
+#ifdef HAVE_LIMITS_H
+#include <limits.h>
+#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#ifdef HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif
+#ifdef HAVE_SYS_WAIT_H
+#include <sys/wait.h>
+#endif
+#ifdef HAVE_FCNTL_H
+#include <fcntl.h>
+#endif
+
+#include "loghandler.h"
+#include "mypopen.h"
+
+/*
+ *  Function to parse command line into argv and argc.
+ *  cmd is command line to be executed. Arguments in cmd will be
+ *  parsed and copied to buffer. On output, each element of argv[]
+ *  will point to a NULL-terminated string located in buffer.
+ *  argv[0] will point to the command and argc will be updated to
+ *  indicate the number of arguments found (including the command
+ *  in argv[0]). On input, if *argv_in is NULL, then memory for
+ *  the argv[] array will be allocated and the caller will be
+ *  responsible for freeing it. If *argv_in is non-null, then
+ *  *argc must be set to the max number of elements that *argv_in
+ *  can hold, including the terminating NULL pointer.
+ */
+static int mypopen_args(const char *cmd, char* (&argv)[50], int &argc, char *buffer, size_t buffer_sz)
+{
+   char quote, *b, *b1;
+   const char *p;
+   int maxargs = 50;
+
+   /* Initialize arg array */
+   if (argc < 2) return -1;
+   maxargs = argc;
+   argc = 0;
+   memset(argv, 0, maxargs * sizeof(char*));
+   /* Initialize arg buffer */
+   if (strlen(cmd) + 1 >= buffer_sz) return -1;
+   *buffer = '\0';
+
+   /* Parse args */
+   b = buffer;
+   p = cmd;
+   b1 = b;
+   --maxargs; /* Ensure room for trailing NULL arg ptr */
+   while (*p) {
+      /* skip whitespace between args */
+      if (isspace(*p)) {
+         ++p;
+         continue;
+      }
+      /* Copy next arg to buffer */
+      if (*p == '"' || *p == '\'') {
+         /* Quoted string is treated as one arg */
+         quote = *p;
+         ++p;
+         while (*p && *p != quote) {
+            if (*p == '\\') {
+               ++p;
+               if (*p == 0) break;
+            }
+            *b = *p;
+            ++b;
+            ++p;
+         }
+      } else {
+         /* Arg is space-delimited */
+         while (*p && !isspace(*p)) {
+            *b = *p;
+            ++b;
+            ++p;
+         }
+      }
+      *b = '\0';
+      ++b;
+      /* Set argument array pointer */
+      argv[argc] = b1;
+      /* Position to next arg */
+      b1 = b;
+      argc += 1;
+      if (argc >= maxargs) {
+         /* Max args exceeded */
+         argc = 0;
+         return -1;
+      }
+   }
+   /* Check for no args at all */
+   if (argc == 0) {
+      return -1;
+   }
+
+   return 0;
+}
+
+
+/*
+ *  Function to close all pipes that may be open
+ */
+static void CloseAllPipes(int *pipe_in, int *pipe_out, int *pipe_err)
+{
+   if (pipe_in[0] >= 0) close(pipe_in[0]);
+   if (pipe_in[1] >= 0) close(pipe_in[1]);
+   if (pipe_out[0] >= 0) close(pipe_out[0]);
+   if (pipe_out[1] >= 0) close(pipe_out[1]);
+   if (pipe_err[0] >= 0) close(pipe_err[0]);
+   if (pipe_err[1] >= 0) close(pipe_err[1]);
+}
+
+
+
+/*
+ *  Function to fork a child process, specifying the command and arguments to be
+ *  run in the child and the child's standard i/o files. If fno_stdXXX is NULL,
+ *  then the child will inherit the parent's stdXXX. If *fno_stdXXX is -1, then
+ *  a pipe will be created with the child's stdXXX being one end of the pipe and
+ *  the other end of the pipe being passed back to the caller in *fno_stdXXX. If
+ *  *fno_stdXXX is zero or greater, then it specifies a file descriptor that will be
+ *  used as the corresponding stdXXX in the child.
+ *  On success, returns the pid of the child. On error, returns -1 and sets errno.
+ */
+#ifndef HAVE_WINDOWS_H
+static int do_mypopen_raw(const char *cline, int *fno_stdin, int *fno_stdout, int *fno_stderr)
+{
+   int rc, pipe_in[2], pipe_out[2], pipe_err[2];
+   int n, pid = -1, argc = 50;
+   char* argv[50];
+   char argbuf[4096];
+
+   /* Sanity check parameters */
+   if (!cline || !cline[0]) {
+      errno = EINVAL;
+      return -1;
+   }
+   for (n = 0; n < 2; n++)
+   {
+      pipe_in[n] = -1;
+      pipe_out[n] = -1;
+      pipe_err[n] = -1;
+   }
+
+   /* Build argv array from command line string */
+   if (mypopen_args(cline, argv, argc, argbuf, sizeof(argbuf))) {
+      /* Invalid args, so terminate child */
+      log.Debug("popen: invalid cmdline args for child");
+      errno = EINVAL;
+      return -1;
+   }
+
+   /* Setup child's stdin */
+   if (fno_stdin) {
+      if (*fno_stdin < 0) {
+         /* Caller requests a pipe by specifying descriptor -1 */
+         rc = pipe(pipe_in);
+         if (rc) {
+            /* error creating pipe */
+            return -1;
+         }
+         log.Debug("popen: child stdin uses pipe (%d -> %d)", pipe_in[0], pipe_in[1]);
+      } else if (*fno_stdin == STDIN_FILENO) {
+         /* Caller specified stdin so just let child inherit it */
+         fno_stdin = NULL;
+      }
+   }
+
+   /* Setup child's stdout */
+   if (fno_stdout) {
+      if (*fno_stdout < 0) {
+         /* Caller requests a pipe by specifying descriptor -1 */
+         rc = pipe(pipe_out);
+         if (rc) {
+            /* error creating pipe */
+            rc = errno;
+            CloseAllPipes(pipe_in, pipe_out, pipe_err);
+            errno = rc;
+            return -1;
+         }
+         log.Debug("popen: child stdout uses pipe (%d -> %d)", pipe_out[0], pipe_out[1]);
+      } else {
+         if (*fno_stdout == STDOUT_FILENO) fno_stdout = NULL;
+         else fsync(*fno_stdout);
+      }
+   }
+
+   /* Setup child's stderr */
+   if (fno_stderr) {
+      if (*fno_stderr < 0) {
+         /* Caller requests a pipe by specifying descriptor -1 */
+         rc = pipe(pipe_err);
+         if (rc) {
+            /* error creating pipe */
+            rc = errno;
+            CloseAllPipes(pipe_in, pipe_out, pipe_err);
+            errno = rc;
+            return -1;
+         }
+         log.Debug("popen: child stderr uses pipe (%d -> %d)", pipe_err[0], pipe_err[1]);
+      } else {
+         if (*fno_stderr == STDERR_FILENO) fno_stderr = NULL;
+         else fsync(*fno_stderr);
+      }
+   }
+
+   /* fork a child process to run the command in */
+   log.Debug("popen: forking now");
+   pid = fork();
+   switch (pid)
+   {
+   case -1: /* error creating process */
+      rc = errno;
+      CloseAllPipes(pipe_in, pipe_out, pipe_err);
+      errno = rc;
+      return -1;
+
+   case 0: /* child is running */
+      /* close pipe ends always used by parent */
+      log.Debug("popen: child closing pipe ends %d,%d,%d used by parent", pipe_in[1], pipe_out[0], pipe_err[0]);
+      if (pipe_in[1] >= 0) close(pipe_in[1]);
+      if (pipe_out[0] >= 0) close(pipe_out[0]);
+      if (pipe_err[0] >= 0) close(pipe_err[0]);
+      /* assign child's stdin */
+      if (fno_stdin) {
+         if (*fno_stdin < 0) {
+            /* Read end of pipe will be child's stdin */
+            log.Debug("popen: child will read stdin from %d", pipe_in[0]);
+            dup2(pipe_in[0], STDIN_FILENO);
+            close(pipe_in[0]);
+         } else {
+            /* Child's stdin will read from caller's input file */
+            dup2(*fno_stdin, STDIN_FILENO);
+            close(*fno_stdin);
+         }
+      }
+      /* assign child's stdout */
+      if (fno_stdout) {
+         if (*fno_stdout < 0) {
+            /* Write end of pipe will be child's stdout */
+            log.Debug("popen: child will write stdout to %d", pipe_out[1]);
+            dup2(pipe_out[1], STDOUT_FILENO);
+            close(pipe_out[1]);
+         } else {
+            /* Child's stdout will write to caller's output file */
+            dup2(*fno_stdout, STDOUT_FILENO);
+            close(*fno_stdout);
+         }
+      }
+      /* assign child's stderr */
+      if (fno_stderr) {
+         if (*fno_stderr < 0) {
+            /* Write end of pipe will be child's stderr */
+            log.Debug("popen: child will write stderr to %d", pipe_err[1]);
+            dup2(pipe_err[1], STDERR_FILENO);
+            close(pipe_err[1]);
+         } else {
+            /* Child's stderr will write to caller's error file */
+            dup2(*fno_stderr, STDERR_FILENO);
+            close(*fno_stderr);
+         }
+      }
+      /* now run the command */
+      log.Debug("popen: child executing '%s'", argv[0]);
+      execvp(argv[0], argv);
+      /* only gets here if execvp fails */
+      return -1;
+   }
+
+   /* parent is running this */
+
+   /* close pipe ends always used by child */
+   log.Debug("popen: parent closing pipe ends %d,%d,%d used by child", pipe_in[0], pipe_out[1], pipe_err[1]);
+   if (pipe_in[0] >= 0) close(pipe_in[0]);
+   if (pipe_out[1] >= 0) close(pipe_out[1]);
+   if (pipe_err[1] >= 0) close(pipe_err[1]);
+
+   /* Pass pipe ends being used back to caller */
+   if (fno_stdin) {
+      if (*fno_stdin < 0) {
+         /* Caller will be writing to child's stdin through pipe */
+         *fno_stdin = pipe_in[1];
+         log.Debug("popen: parent writes child's stdin to %d", pipe_in[1]);
+      }
+   }
+   if (fno_stdout) {
+      if (*fno_stdout < 0) {
+         /* Caller will be reading from child's stdout through pipe */
+         *fno_stdout = pipe_out[0];
+         log.Debug("popen: parent reads child's stdout from %d", pipe_out[0]);
+      }
+   }
+   if (fno_stderr) {
+      if (*fno_stderr < 0) {
+         /* Caller will be reading from child's stderr through pipe */
+         *fno_stderr = pipe_err[0];
+         log.Debug("popen: parent reads child's stderr from %d", pipe_err[0]);
+      }
+   }
+   //sleep(2);
+   log.Debug("popen: parent returning pid=%d of child", pid);
+   return pid;
+}
+
+#else
+static int do_mypopen_raw(const char *cline, int *fno_stdin, int *fno_stdout, int *fno_stderr)
+{
+   int rc, pipe_in[2], pipe_out[2], pipe_err[2];
+   int save_in = -1, save_out = -1, save_err = -1;
+   int child_in = -1, child_out = -1, child_err = -1;
+   int n, pid = -1, argc = 50;
+   char *argv[50], argbuf[4096];
+
+   /* Sanity check parameters */
+   if (!cline || !cline[0]) {
+      errno = EINVAL;
+      return -1;
+   }
+   for (n = 0; n < 2; n++)
+   {
+      pipe_in[n] = -1;
+      pipe_out[n] = -1;
+      pipe_err[n] = -1;
+   }
+
+   /* Build argv array from command line string */
+   if (mypopen_args(cline, argv, argc, argbuf, sizeof(argbuf))) {
+      /* Invalid args, so terminate child */
+      log.Debug("popen: invalid cmdline args for child");
+      errno = EINVAL;
+      return -1;
+   }
+
+   /* Determine child's stdin */
+   if (fno_stdin) {
+      if (*fno_stdin < 0) {
+         /* Caller requests a pipe for writing to child's stdin */
+         rc = _pipe(pipe_in, 4096, O_NOINHERIT);
+         if (rc) {
+            /* error creating pipe */
+            return -1;
+         }
+         child_in = pipe_in[0];
+         log.Debug("popen: child stdin uses pipe (%d -> %d)", pipe_in[0], pipe_in[1]);
+      } else {
+         if (*fno_stdin != STDIN_FILENO) {
+            /* Caller supplied an open file to use as child's stdin */
+            child_in = *fno_stdin;
+         }
+      }
+   }
+
+   /* Determine child's stdout */
+   if (fno_stdout) {
+      if (*fno_stdout < 0) {
+         /* Caller requests a pipe for reading from child's stdout */
+         rc = _pipe(pipe_out, 4096, O_NOINHERIT);
+         if (rc) {
+            /* error creating pipe */
+            rc = errno;
+            CloseAllPipes(pipe_in, pipe_out, pipe_err);
+            errno = rc;
+            return -1;
+         }
+         child_out = pipe_out[1];
+         log.Debug("popen: child stdout uses pipe (%d -> %d)", pipe_out[0], pipe_out[1]);
+      } else {
+         if (*fno_stdout != STDOUT_FILENO) {
+            /* Caller supplied open file to use as child's stdout */
+            child_out = *fno_stdout;
+         }
+      }
+   }
+
+   /* Setup child's stderr */
+   if (fno_stderr) {
+      if (*fno_stderr < 0) {
+         /* Caller requests a pipe for reading from child's stderr */
+         rc = _pipe(pipe_err, 5096, O_NOINHERIT);
+         if (rc) {
+            /* error creating pipe */
+            rc = errno;
+            CloseAllPipes(pipe_in, pipe_out, pipe_err);
+            errno = rc;
+            return -1;
+         }
+         child_err = pipe_err[1];
+         log.Debug("popen: child stderr uses pipe (%d -> %d)", pipe_err[0], pipe_err[1]);
+      } else {
+         if (*fno_stderr != STDERR_FILENO) {
+            /* Caller supplied an open file to use as child's stderr */
+            child_err = *fno_stderr;
+         }
+      }
+   }
+
+   /* Save original stdin and make stdin a duplicate of file child is to use */
+   if (child_in >= 0) {
+      save_in = _dup(STDIN_FILENO);
+      if (save_in < 0) {
+         rc = errno;
+         CloseAllPipes(pipe_in, pipe_out, pipe_err);
+         errno = rc;
+         return -1;
+      }
+      if(_dup2(child_in, STDIN_FILENO) != 0) {
+         rc = errno;
+         close(save_in);
+         CloseAllPipes(pipe_in, pipe_out, pipe_err);
+         errno = rc;
+         return -1;
+      }
+   }
+
+   /* Save original stdout and make stdout a duplicate of file child is to use */
+   if (child_out >= 0) {
+      save_out = _dup(STDOUT_FILENO);
+      if (save_out < 0) {
+         rc = errno;
+         if (save_in >= 0) {
+            _dup2(save_in, STDIN_FILENO);
+            close(save_in);
+            pipe_in[0] = -1;
+         }
+         CloseAllPipes(pipe_in, pipe_out, pipe_err);
+         errno = rc;
+         return -1;
+      }
+      if(_dup2(child_out, STDOUT_FILENO) != 0) {
+         rc = errno;
+         close(save_out);
+         if (save_in >= 0) {
+            _dup2(save_in, STDIN_FILENO);
+            close(save_in);
+            pipe_in[0] = -1;
+         }
+         CloseAllPipes(pipe_in, pipe_out, pipe_err);
+         errno = rc;
+         return -1;
+      }
+   }
+
+   /* Save original stderr and make stderr a duplicate of file child is to use */
+   if (child_err >= 0) {
+      save_err = _dup(STDERR_FILENO);
+      if (save_err < 0) {
+         rc = errno;
+         if (save_in >= 0) {
+            _dup2(save_in, STDIN_FILENO);
+            close(save_in);
+            pipe_in[0] = -1;
+         }
+         if (save_out >= 0) {
+            _dup2(save_out, STDOUT_FILENO);
+            close(save_out);
+            pipe_out[1] = -1;
+         }
+         CloseAllPipes(pipe_in, pipe_out, pipe_err);
+         errno = rc;
+         return -1;
+      }
+      if(_dup2(child_err, STDERR_FILENO) != 0) {
+         rc = errno;
+         close(save_out);
+         if (save_in >= 0) {
+            _dup2(save_in, STDIN_FILENO);
+            close(save_in);
+            pipe_in[0] = -1;
+         }
+         if (save_out >= 0) {
+            _dup2(save_out, STDOUT_FILENO);
+            close(save_out);
+            pipe_out[1] = -1;
+         }
+        CloseAllPipes(pipe_in, pipe_out, pipe_err);
+         errno = rc;
+         return -1;
+      }
+   }
+
+   /* Spawn the child process */
+   rc = 0;
+   pid = _spawnvp(_P_NOWAIT, argv[0], argv);
+   if (pid < 0) {
+      /* spawn failed */
+      rc = errno;
+   }
+
+   /* Restore parent's stdin, stdout, and stderr */
+   if (save_in >= 0) {
+      _dup2(save_in, STDIN_FILENO);
+      close(save_in);
+      pipe_in[0] = -1;
+   }
+   if (save_out >= 0) {
+      _dup2(save_out, STDOUT_FILENO);
+      close(save_out);
+      pipe_out[1] = -1;
+   }
+   if (save_err >= 0) {
+      _dup2(save_err, STDERR_FILENO);
+      close(save_err);
+      pipe_err[1] = -1;
+   }
+
+   if (rc) {
+      CloseAllPipes(pipe_in, pipe_out, pipe_err);
+      return -1;
+   }
+
+   /* Pass requested pipe ends back to caller */
+   if (pipe_in[1] >= 0) *fno_stdin = pipe_in[1];
+   if (pipe_out[0] >= 0) *fno_stdout = pipe_out[0];
+   if (pipe_err[0] >= 0) *fno_stderr = pipe_err[0];
+
+   log.Debug("popen: parent returning pid=%d of child", pid);
+   return pid;
+}
+
+#endif
+
+/*
+ *  Function to fork a child process, specifying the command and arguments to be
+ *  run in the child and the child's standard i/o files. If fno_stdXXX is NULL,
+ *  then the child will inherit the parent's stdXXX. If *fno_stdXXX is -1, then
+ *  a pipe will be created with the child's stdXXX being one end of the pipe and
+ *  the other end of the pipe being passed back to the caller in *fno_stdXXX. If
+ *  *fno_stdXXX zero or greater, then it specifies a file descriptor that will be
+ *  used as stdXXX in the child.
+ *  On success, returns the pid of the child. On error, returns -1 and sets errno.
+ */
+int mypopen_raw(const char *command, int *fno_stdin, int *fno_stdout, int *fno_stderr)
+{
+   return do_mypopen_raw(command, fno_stdin, fno_stdout, fno_stderr);
+}
+
+
+/*
+ *  Function to fork a child process, specifying the command to be run in the child
+ *  and acquiring open file streams to the child's stdXXX files. If any of fs_XXX are
+ *  NULL, then the child will inherit the parent's corresponding stdXXX. If fs_XXX points
+ *  to an open file stream, then the child will use that file as its stdXXX. If fs_XXX
+ *  points to NULL, then on return *fs_XXX will be an open file connected by a pipe to
+ *  the child's corresponding stdXXX.
+ *  On success, returns the pid of the child process. On error, returns -1 and
+ *  sets errno appropriately.
+ */
+int mypopen(const char *cmd, FILE **fs_in, FILE **fs_out, FILE **fs_err)
+{
+   int pid, fno_in = -1, fno_out = -1, fno_err = -1;
+   int *in_p = NULL, *out_p = NULL, *err_p = NULL;
+   if (fs_in) {
+      in_p = &fno_in;
+      if (*fs_in) {
+         fno_in = fileno(*fs_in);
+         if (fno_in == STDIN_FILENO) {
+            in_p = NULL;
+            fs_in = NULL;
+         }
+      }
+   }
+   if (fs_out) {
+      out_p = &fno_out;
+      if (*fs_out) {
+         fno_out = fileno(*fs_out);
+         if (fno_out == STDOUT_FILENO) {
+            out_p = NULL;
+            fs_out = NULL;
+         }
+      }
+   }
+   if (fs_err) {
+      err_p = &fno_err;
+      if (*fs_err) {
+         fno_err = fileno(*fs_err);
+         if (fno_err == STDERR_FILENO) {
+            err_p = NULL;
+            fs_err = NULL;
+         }
+      }
+   }
+   pid = do_mypopen_raw(cmd, in_p, out_p, err_p);
+   if (pid < 0) return -1;
+   if (fs_in && *fs_in == NULL) *fs_in = fdopen(fno_in, "w");
+   if (fs_out && *fs_out == NULL) *fs_out = fdopen(fno_out, "r");
+   if (fs_err && *fs_err == NULL) *fs_err = fdopen(fno_err, "r");
+   return pid;
+}
+
+
+/*
+ *  Function to fork a child process, specifying the command to be run in the child
+ *  and files the child will use for stdXXX. If cmd_XXX is non-null, then it specifies
+ *  the name of a file that the child is to use as its stdXXX. If the filename is empty
+ *  then "/dev/null" is used. If cmd_XXX is NULL, then the child will use the caller's stdXXX.
+ *  On success, returns the result code from the command. On error, returns -1 and
+ *  sets errno appropriately.
+ */
+int mypopenrw(const char *command, const char *cmd_in, const char *cmd_out, const char *cmd_err)
+{
+   int pid, rc, st;
+   int fno_in = -1, fno_out = -1, fno_err = -1;
+   int *fno_in_p = NULL, *fno_out_p = NULL, *fno_err_p = NULL;
+
+   /* Execute command in a child process, setting child's stdin, stdout, and stderr */
+   if (cmd_in) {
+      if (cmd_in[0]) fno_in = open(cmd_in, O_RDONLY);
+      else fno_in = open("/dev/null", O_RDONLY);
+      if (fno_in < 0) return -1;
+      fno_in_p = &fno_in;
+   }
+   if (cmd_out) {
+      if (cmd_out[0]) {
+#ifndef HAVE_WINDOWS_H
+         fno_out = open(cmd_out, O_WRONLY|O_CREAT, S_IRUSR|S_IWUSR|S_IRGRP);
+#else
+         fno_out = _open(cmd_out, O_WRONLY|O_CREAT, _S_IWRITE);
+#endif
+      } else fno_out = open("/dev/null", O_WRONLY);
+      if (fno_out < 0) {
+         rc = errno;
+         if (fno_in >= 0) close(fno_in);
+         errno = rc;
+         return -1;
+      }
+      fno_out_p = &fno_out;
+   }
+   if (cmd_err) {
+      if (cmd_err[0]) {
+#ifndef HAVE_WINDOWS_H
+         fno_err = open(cmd_err, O_WRONLY|O_CREAT, S_IRUSR|S_IWUSR|S_IRGRP);
+#else
+         fno_err = _open(cmd_err, O_WRONLY|O_CREAT, _S_IWRITE);
+#endif
+      } else fno_err = open("/dev/null", O_WRONLY);
+      if (fno_err < 0) {
+         rc = errno;
+         if (fno_in >= 0) close(fno_in);
+         if (fno_out >= 0) close(fno_out);
+         errno = rc;
+         return -1;
+      }
+      fno_err_p = &fno_err;
+   }
+   pid = do_mypopen_raw(command, fno_in_p, fno_out_p, fno_err_p);
+   if (pid < 0) {
+      /* Command execution failed */
+      if (fno_in >= 0) close(fno_in);
+      if (fno_out >= 0) close(fno_out);
+      if (fno_err >= 0) close(fno_err);
+      return -1;
+   }
+   /* Wait for child process to exit */
+#ifndef HAVE_WINDOWS_H
+   rc = waitpid(pid, &st, 0);
+   while (rc < 0) {
+      if (errno != EINTR) {
+         if (fno_in >= 0) close(fno_in);
+         if (fno_out >= 0) close(fno_out);
+         if (fno_err >= 0) close(fno_err);
+         return -1;
+      }
+      rc = waitpid(pid, &st, 0);
+   }
+   /* get child's result code */
+   if (!WIFEXITED(st)) {
+      /* Command was killed for some reason */
+      return -1;
+   }
+   rc = WEXITSTATUS(st);
+
+#else
+   if (_cwait(&rc, pid, WAIT_CHILD) != pid) {
+      if (fno_in >= 0) close(fno_in);
+      if (fno_out >= 0) close(fno_out);
+      if (fno_err >= 0) close(fno_err);
+      return -1;
+   }
+#endif
+
+   if (fno_in >= 0) {
+      close(fno_in);
+   }
+   if (fno_out >= 0) {
+      close(fno_out);
+   }
+   if (fno_err >= 0) {
+      close(fno_err);
+   }
+   return rc;
+}
+

src/mypopen.h

@@ -0,0 +1,37 @@
+/*  mypopen.h
+ *
+ *  Copyright (C) 2013-2014 Josh Fisher
+ *
+ *  This program is free software. You may redistribute it and/or modify
+ *  it under the terms of the GNU General Public License, as published by
+ *  the Free Software Foundation; either version 2, or (at your option)
+ *  any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ *  General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  See the file "COPYING".  If not,
+ *  see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _MYPOPEN_H_
+#define _MYPOPEN_H_ 1
+
+#include "tstring.h"
+
+int mypopen_raw(const char *command, int *fno_stdin, int *fno_stdout, int *fno_stderr);
+inline int mypopen_raw(const tString &command, int *fno_stdin, int *fno_stdout, int *fno_stderr)
+   { return mypopen_raw(command.c_str(), fno_stdin, fno_stdout, fno_stderr); }
+int mypopen(const char *command, FILE **cmd_stdin = NULL, FILE **cmd_stdout = NULL,
+            FILE **cmd_stderr = NULL);
+inline int mypopen(const tString &command, FILE **cmd_stdin = NULL, FILE **cmd_stdout = NULL,
+      FILE **cmd_stderr = NULL)
+   { return mypopen(command.c_str(), cmd_stdin, cmd_stdout, cmd_stderr); }
+int mypopenrw(const char *command, const char *cmd_in = NULL, const char *cmd_out = NULL, const char *cmd_err = NULL);
+inline int mypopenrw(const tString &command, const char *cmd_in = NULL, const char *cmd_out = NULL, const char *cmd_err = NULL)
+   { return mypopenrw(command.c_str(), cmd_in, cmd_out, cmd_err); }
+
+#endif /* _MYPOPEN_H_ */

src/targetver.h

@@ -0,0 +1,24 @@
+
+/* The following macros define the minimum required platform.  The minimum required platform
+ * is the earliest version of Windows, Internet Explorer etc. that has the necessary features to run
+ * your application.  The macros work by enabling all features available on platform versions up to and
+ * including the version specified.
+ *
+ * Modify the following defines if you have to target a platform prior to the ones specified below.
+ * Refer to MSDN for the latest info on corresponding values for different platforms.
+ */
+#ifndef _TARGETVER_H_
+#define _TARGETVER_H_ 1
+#ifdef HAVE_WINDOWS_H
+#ifndef WINVER
+#define WINVER 0x0600
+#endif
+#ifndef _WIN32_WINNT
+#define _WIN32_WINNT 0x0600
+#endif
+#ifndef _WIN32_IE
+#define _WIN32_IE 0x0700
+#endif
+#define _POSIX 1
+#endif
+#endif

src/tstring.cpp

@@ -0,0 +1,476 @@
+/* tstring.cpp
+ *
+ *  This file is part of the msafe package by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2006-2014 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License, version 2, as published by the Free
+ *  Software Foundation
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with msafe.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+ */
+#include "config.h"
+#include <stdio.h>
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#ifdef HAVE_STDARG_H
+#include <stdarg.h>
+#endif
+#ifdef HAVE_CTYPE_H
+#include <ctype.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
+#include "tstring.h"
+
+
+
+/*
+ *  Function to make string lower case
+ */
+tString& tToLower(tString &b)
+{
+   tStringIterator p;
+   for (p = b.begin(); p != b.end(); p++) {
+      *p = tolower(*p);
+   }
+   return b;
+}
+
+tString tToLower(const char *sin)
+{
+   tString b(sin);
+   tToLower(b);
+   return b;
+}
+
+/*
+ *  Function to make string upper case
+ */
+tString& tToUpper(tString &b)
+{
+   tStringIterator p;
+   for (p = b.begin(); p != b.end(); p++) {
+      *p = toupper(*p);
+   }
+   return b;
+}
+
+tString tToUpper(const char *sin)
+{
+   tString b(sin);
+   tToUpper(b);
+   return b;
+}
+
+/*
+ *  Function to strip leading whitespace
+ */
+tString& tStripLeft(tString &b)
+{
+   tStringIterator p;
+   for (p = b.begin(); p != b.end() && isblank(*p); p++) ;
+   if (p != b.begin()) {
+      b.erase(b.begin(), p);
+   }
+   return b;
+}
+
+tString tStripLeft(const char *sin)
+{
+   tString b(sin);
+   tStripLeft(b);
+   return b;
+}
+
+/*
+ *  Function to strip trailing blanks
+ */
+tString& tStripRight(tString &b)
+{
+   tStringIterator p = b.begin();
+   size_t n = b.find_last_not_of(" \t");
+   if (n != tString::npos) p += (n + 1);
+   b.erase(p, b.end());
+   return b;
+}
+
+tString tStripRight(const char *sin)
+{
+   tString b(sin);
+   tStripRight(b);
+   return b;
+}
+
+/*
+ *  Function to strip leading and trailing whitespace
+ */
+tString& tStrip(tString &b)
+{
+   return tStripLeft(tStripRight(b));
+}
+
+tString tStrip(const char *sin)
+{
+   tString b(sin);
+   tStrip(b);
+   return b;
+}
+
+/*
+ *  Function to remove all SP and HTAB chars from b
+ */
+tString& tRemoveWS(tString &b)
+{
+   size_t n = b.find_first_of(" \t");
+   while (n != tString::npos) {
+      b.erase(n, 1);
+      n = b.find_first_of(" \t", n);
+   }
+   return b;
+}
+
+tString tRemoveWS(const char *sin)
+{
+   tString b(sin);
+   tRemoveWS(b);
+   return b;
+}
+
+/*
+ *  Function to remove trailing line ending
+ */
+tString& tRemoveEOL(tString &b)
+{
+   if (b.empty() || b[b.size() - 1] != '\n') return b;
+   b.erase(b.end() - 1);
+   if (!b.empty() && b[b.size() - 1] == '\r') b.erase(b.end() - 1);
+   return b;
+}
+
+tString tRemoveEOL(const char *sin)
+{
+   tString b(sin);
+   tRemoveEOL(b);
+   return b;
+}
+
+/*
+ *  Function to change LF endings to CRLF
+ */
+tString& tLF2CRLF(tString &b)
+{
+   size_t n = b.find_first_of('\n');
+   while (n != tString::npos) {
+      if (n && b[n-1] != '\r') {
+         b.insert(n, 1, '\r');
+         n += 2;
+      } else ++n;
+      n = b.find_first_of('\n', n);
+   }
+   return b;
+}
+
+tString tLF2CRLF(const char *sin)
+{
+   tString b(sin);
+   tLF2CRLF(b);
+   return b;
+}
+
+/*
+ *  Function to change CRLF endings to LF
+ */
+tString& tCRLF2LF(tString &b)
+{
+   size_t n = b.find("\r\n");
+   while (n != tString::npos) {
+      b.erase(n, 1);
+      n = b.find("\r\n", n);
+   }
+   return b;
+}
+
+tString tCRLF2LF(const char *sin)
+{
+   tString b(sin);
+   tCRLF2LF(b);
+   return b;
+}
+
+/*
+ *  Function to extract the next line of text from sin
+ *  Returns line extracted.
+ */
+tString tExtractLine(const tString &b, size_t &pos)
+{
+   size_t p1 = pos;
+   pos = b.find('\n', pos);
+   if (pos == tString::npos) pos = b.size();
+   else ++pos;
+   return b.substr(p1, pos - p1);
+}
+
+tString tExtractLine(const char *sin, size_t &pos)
+{
+   tString b(sin);
+   return tExtractLine(b, pos);
+}
+
+/*
+ *  Function to compare two case-insensitive strings as in C function strcasecmp()
+ */
+int tCaseCmp(const char *a, const char *b)
+{
+   if (!a || !a[0]) return b && b[0] ? -1 : 0;
+   if (!b || !b[0]) return 1;
+   return strcasecmp(a, b);
+}
+
+/*
+ *  Function to do case-insensitive search for character b from position pos
+ *  in string a
+ */
+size_t tCaseFind(const tString &a, char b, size_t pos)
+{
+   b = tolower(b);
+   tString str = a;
+   tToLower(str);
+   return str.find(b, pos);
+}
+
+/*
+ *  Function to do case-insensitive search for C string b from position pos
+ *  in string a
+ */
+size_t tCaseFind(const tString &a, const char *b_in, size_t pos)
+{
+   tString str(a), b(b_in);
+   tToLower(str);
+   tToLower(b);
+   return str.find(b, pos);
+}
+
+/*
+ *  Function to get line of text from a file stream
+ */
+const char* tGetLine(tString &str, FILE *FS)
+{
+   char buf[4096];
+   if (fgets(buf, sizeof(buf), FS) == NULL) {
+      str.clear();
+      return NULL;
+   }
+   str = buf;
+   return str.c_str();
+}
+
+/*
+ *  Function to format a string using sprintf
+ */
+const char* tFormat(tString &str, const char *fmt, ...)
+{
+   char buf[8192];
+   va_list vl;
+   va_start(vl, fmt);
+   vsnprintf(buf, sizeof(buf), fmt, vl);
+   va_end(vl);
+   buf[8191] = 0;
+   str = buf;
+   return str.c_str();
+}
+
+/*
+ *  Function to parse next token from position 'pos' in string 'str'.
+ *  The text determining the token is placed in 'word'. 'pos' is
+ *  updated to reference the character following the token text, or
+ *  end of string if no characters follow the token text.
+ *  Returns:
+ *    0        Past end of string
+ *    'A'      Atom was found
+ *    ' '      Whitespace was found
+ *    '\n'     EOL char sequence was found
+ *    <other>  Special char was found
+ */
+char tParseStandard(tString &word, const char *str, size_t &pos, tString special, tString ws)
+{
+   size_t n, slen;
+   if (ws.empty()) ws = " \t";
+   word.clear();
+   if (!str || !str[0]) return 0;
+   slen = strlen(str);
+   if (pos >= slen) {
+      pos = slen;
+      return 0;
+   }
+   if (ws.find(str[pos]) != tString::npos) {
+      /* Extract whitespace sequence */
+      for (n = pos; n < slen && ws.find(str[n]) != tString::npos; n++) ;
+      word.insert(0, str + pos, n - pos);
+      pos = n;
+      return ' ';
+   }
+   if (special.find(str[pos]) != tString::npos) {
+      /* Extract special character */
+      word = str[pos++];
+      return word[0];
+   }
+   if (str[pos] == '\r') {
+      /* Extract CR or CRLF line ending */
+      word = '\r';
+      ++pos;
+      if (str[pos] == '\n') {
+         word += '\n';
+         ++pos;
+      }
+      return '\n';
+   }
+   if (str[pos] == '\n') {
+      /* Extract LF line ending */
+      word = '\n';
+      ++pos;
+      return '\n';
+   }
+   /* Extract atom */
+   for (n = pos; n < slen && str[n] != '\r' && str[n] != '\n' && ws.find(str[n]) == tString::npos
+         && special.find(str[n]) == tString::npos; n++) ;
+   word.insert(0, str + pos, n - pos);
+   pos = n;
+   return 'A';
+}
+
+
+/*
+ *  Function to parse next value in comma-separated-value string 'str'
+ *  on or after position 'pos' and store the value in 'word'. The value
+ *  returned in 'word' will have quoting and escape sequences decoded.
+ *  'pos' is updated and set to the position in 'str' of the character
+ *  following the next delimiter (',') or end of line/string if there are
+ *  no more delimiters.
+ *  Returns:
+ *     -1    Missing closing quote
+ *     0     Past end of string
+ *     1     Found column field
+ *     2     Found line ending
+ */
+int tParseCSV(tString &word, const char *str, size_t &pos)
+{
+   size_t p, slen = strlen(str);
+   char c;
+   tString w;
+
+   word.clear();
+   c = tParseStandard(w, str, pos, "\",");
+   if (!c) return 0; /* At end of string */
+   if (c == '\n') {
+      /* EOL found */
+      word = w;
+      return 2;
+   }
+   /* Skip leading whitespace */
+   while (c == ' ') c = tParseStandard(w, str, pos, "\",");
+   if (c == 0) {
+      /* Found empty field terminated by end of string */
+      return 0;
+   }
+   if (c == '\n') {
+      /* Found empty field terminated by EOL */
+      word = w;
+      return 2;
+   }
+   /* extract field */
+   while (c && c != '\n' && c != ',') {
+      if (c == '"') {
+         /* Extracting quoted string */
+         c = tParseStandard(w, str, pos, "\"\\");
+         while (c && c != '"') {
+            if (c == '\\') {
+               switch (str[pos]) {
+               case 0:
+                  return -1;
+               case 'r':
+                  word += '\r';
+                  break;
+               case 'n':
+                  word += '\n';
+                  break;
+               case 't':
+                  word += '\t';
+                  break;
+               case 'v':
+                  word += '\v';
+                  break;
+               case 'b':
+                  word += '\b';
+                  break;
+               case 'a':
+                  word += '\a';
+                  break;
+               case 'x':
+                  /* Process hex escape sequence */
+                  if (isxdigit(str[pos + 1])) {
+                     ++pos;
+                     w.clear();
+                     for (p = 0; pos < slen && p < 2 && isxdigit(str[pos]); p++) {
+                        w += str[pos++];
+                     }
+                     word += (char)strtoul(w.c_str(), NULL, 16);
+                     --pos;
+                  } else word += 'x';
+                  break;
+               default:
+                  if (str[pos] >= '0' && str[pos] <= '7') {
+                     /* Process octal escape sequence */
+                     w.clear();
+                     for (p = 0; pos < slen && p < 3 && str[pos] >= '0' && str[pos] <= '7'; p++) {
+                        w += str[pos++];
+                     }
+                     word += (char)strtoul(w.c_str(), NULL, 8);
+                     --pos;
+                  } else {
+                     /* anything else following an escape is a literal */
+                     word += str[pos];
+                  }
+               }
+               ++pos;
+            } else {
+               word += w;
+            }
+         }
+         if (c != '"') {
+            /* Closing '"' not found */
+            return -1;
+         }
+      } else if (c == ' ' || c == '\n') {
+         /* Extracting  unquoted whitespace. Replace with single SP */
+         if (c == ' ') word += ' ';
+      }
+      else {
+         /* Extracting atom or special char */
+         word += w;
+      }
+      c = tParseStandard(w, str, pos, "\",");
+   }
+   /* Found a field */
+   if (c == '\n') {
+      /* If line ending terminated field, put it back */
+      pos -= w.size();
+   }
+   return 1;
+}

src/tstring.h

@@ -0,0 +1,80 @@
+/*  tstring.h
+ *
+ *  This file is part of msafe by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2006-2014 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License, as published by the Free Software
+ *  Foundation; either version 2, or (at your option) any later version.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with msafe.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+ */
+#ifndef _TSTRING_H_
+#define _TSTRING_H_
+
+#include <string>
+#include <list>
+#include <vector>
+#include <map>
+
+typedef std::basic_string<char> tString;
+typedef tString::iterator tStringIterator;
+typedef tString::const_iterator tStringConstIterator;
+typedef tString::reverse_iterator tStringReverseIterator;
+typedef tString::const_reverse_iterator tStringConstReverseIterator;
+typedef std::list<tString> tStringList;
+typedef tStringList::iterator tStringListIterator;
+typedef tStringList::const_iterator tStringListConstIterator;
+typedef tStringList::reverse_iterator tStringListReverseIterator;
+typedef tStringList::const_reverse_iterator tStringListConstReverseIterator;
+typedef std::vector<tString> tStringArray;
+typedef std::map<tString, tString> tStringMap;
+typedef std::map<tString, tStringList> tStringListMap;
+
+tString& tToLower(tString &b);
+tString tToLower(const char *sin);
+tString& tToUpper(tString &b);
+tString tToUpper(const char *sin);
+tString& tStripLeft(tString &b);
+tString tStripLeft(const char *sin);
+tString& tStripRight(tString &b);
+tString tStripRight(const char *sin);
+tString& tStrip(tString &b);
+tString tStrip(const char *sin);
+tString& tRemoveWS(tString &b);
+tString tRemoveWS(const char *b);
+tString& tRemoveEOL(tString &b);
+tString tRemoveEOL(const char *sin);
+tString& tLF2CRLF(tString &b);
+tString tLF2CRLF(const char *sin);
+tString& tCRLF2LF(tString &b);
+tString tCRLF2LF(const char *sin);
+tString tExtractLine(const tString &b, size_t &pos);
+tString tExtractLine(const char *sin, size_t &pos);
+size_t tCaseFind(const tString &str, char c, size_t pos = 0);
+size_t tCaseFind(const tString &str, const char *pat, size_t pos = 0);
+inline size_t tCaseFind(const tString &str, const tString &pat, size_t pos = 0)
+   { return tCaseFind(str, pat.c_str(), pos); }
+int tCaseCmp(const char *a, const char *b);
+inline int tCaseCmp(const tString &a, const char *b) { return tCaseCmp(a.c_str(), b); }
+inline int tCaseCmp(const char *a, const tString &b) { return tCaseCmp(a, b.c_str()); }
+inline int tCaseCmp(const tString &a, const tString &b) { return tCaseCmp(a.c_str(), b.c_str()); }
+const char* tGetLine(tString &str, FILE *FS);
+const char* tFormat(tString &str, const char *fmt, ...);
+char tParseStandard(tString &word, const char *str, size_t &pos, tString special = "", tString ws = "");
+int tParseCSV(tString &word, const char *str, size_t &pos);
+inline int tParseCSV(tString &word, const tString &str, size_t &pos)
+   { return tParseCSV(word, str.c_str(), pos); }
+
+#endif

src/util.cpp

@@ -0,0 +1,192 @@
+/* util.cpp
+ *
+ *  This file is part of vchanger by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2008-2014 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+ *
+ * This file simply provides some utility functions
+ */
+
+#include "config.h"
+#include <stdio.h>
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#ifdef HAVE_CTYPE_H
+#include <ctype.h>
+#endif
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#ifdef HAVE_STDARG_H
+#include <stdarg.h>
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif
+#ifdef HAVE_FCNTL_H
+#include <fcntl.h>
+#endif
+#ifdef HAVE_GRP_H
+#include <grp.h>
+#endif
+#ifdef HAVE_PWD_H
+#include <pwd.h>
+#endif
+#ifdef HAVE_TIME_H
+#include <time.h>
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+
+#include "util.h"
+
+/*-------------------------------------------------
+ *  Function to return elapsed time between two struct timeval values
+ *  in microseconds.
+ *------------------------------------------------*/
+long timeval_et(struct timeval *tv1, struct timeval *tv2)
+{
+   if (!tv1 || !tv2) return 0;
+   return ((tv2->tv_sec - tv1->tv_sec) * 1000000) + tv2->tv_usec - tv1->tv_usec;
+}
+
+
+/*-------------------------------------------------
+ *  Function to open file 'fname' for write in exclusive access mode.
+ *  On success, returns the opened stream. Otherwise, on error returns
+ *  NULL.
+ *------------------------------------------------*/
+int exclusive_fopen(const char *fname, FILE **fs)
+{
+   int fd, result = 0;
+   *fs = NULL;
+   fd = open(fname, O_CREAT | O_EXCL | O_RDWR, S_IRUSR | S_IWUSR);
+   if (fd > 0) {
+      *fs = fdopen(fd, "w");
+      if (*fs == NULL) {
+         result = errno;
+         close(fd);
+         unlink(fname);
+      }
+   } else {
+      result = errno;
+   }
+   return result;
+}
+
+
+/*-------------------------------------------------
+ *  Function to copy file 'from_path' to new file 'to_path'.
+ *  On success returns zero, else returns errno
+ *------------------------------------------------*/
+int file_copy(const char *to_path, const char *from_path)
+{
+   int rc;
+   size_t n;
+   FILE *to, *from;
+   char *buf;
+   size_t buf_sz = 1024 * 1024;
+
+   if (access(to_path, F_OK) == 0) return EEXIST;
+   from = fopen(from_path, "r");
+   if (!from) return errno;
+   to = fopen(to_path, "w");
+   if (!to) {
+      rc = errno;
+      fclose(from);
+      return rc;
+   }
+   buf = (char*)malloc(buf_sz);
+   while ((n = fread(buf, 1, buf_sz, from)) > 0) {
+      if (fwrite(buf, 1 , n, to) != n) {
+         rc = ferror(to);
+         fclose(to);
+         unlink(to_path);
+         fclose(from);
+         free(buf);
+         return rc;
+      }
+   }
+   free(buf);
+   fclose(to);
+   if (!feof(from)) {
+      rc = ferror(from);
+      unlink(to_path);
+      fclose(from);
+      return rc;
+   }
+   fclose(from);
+   return 0;
+}
+
+/*-------------------------------------------------
+ *  Function to drop root privileges and change persona to uid:gid
+ *  of the given user name and group name.
+ *  On success returns zero, else on error returns errno.
+ *------------------------------------------------*/
+int drop_privs(const char *uname, const char *gname)
+{
+#ifdef HAVE_WINDOWS_H
+   return 0;  /* For windows ignore user switching */
+#else
+   gid_t new_gid;
+   struct passwd *pw;
+   struct group *gr;
+   if (!uname || !uname[0] || getuid()) return 0; /* Nothing to do */
+   if ((pw = getpwnam(uname)) == NULL) return errno;
+   if (pw->pw_uid == 0) return 0; /* already running as root */
+   new_gid = pw->pw_gid;
+   if (gname && gname[0]) {
+      /* find given group */
+      if ((gr = getgrnam(gname)) == NULL) return errno; /* no such group */
+      new_gid = gr->gr_gid;
+   }
+   /* Set supplemental groups */
+   if (initgroups(uname, new_gid)) return errno;
+   /* Start running as given group */
+   if (setgid(new_gid)) return errno;
+   /* Drop root and run as given user */
+   if (setuid(pw->pw_uid)) return errno;
+   return 0;
+#endif
+}
+
+
+/*-------------------------------------------------
+ *  Function returns zero if current user not superuser
+ *  else non-zero.
+ *------------------------------------------------*/
+int is_root_user()
+{
+#ifndef HAVE_WINDOWS_H
+   return getuid() == 0 ? 1 : 0;
+#endif
+   return 0;
+}

src/util.h

@@ -0,0 +1,33 @@
+/*  util.h
+ *
+ *  This file is part of vchanger by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2008-2014 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+ */
+#ifndef _UTIL_H_
+#define _UTIL_H_ 1
+
+/* Utility Functions */
+long timeval_et(struct timeval *tv1, struct timeval *tv2);
+int exclusive_fopen(const char *fname, FILE **fs);
+int file_copy(const char *to, const char *from);
+int drop_privs(const char *uname, const char *gname);
+int is_root_user();
+
+#endif /* _UTIL_H_ */

src/uuidlookup.c

@@ -0,0 +1,364 @@
+/* uuidlookup.c
+ *
+ *  This file is part of vchanger by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2008-2013 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+ *
+ */
+
+#include "config.h"
+#include <stdio.h>
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
+#ifdef HAVE_CTYPE_H
+#include <ctype.h>
+#endif
+
+#include "uuidlookup.h"
+
+#ifdef HAVE_WINDOWS_H
+
+#include "targetver.h"
+#include <windows.h>
+#include <winioctl.h>
+#include "win32_util.h"
+
+/*
+ *  Locates disk partition containing file system with volume serial number
+ *  given by 'uuid_str'. If found, and the filesystem is mounted, returns the
+ *  first mountpoint found in 'mountp'. On success, returns zero. On error,
+ *  returns negative value :
+ *      -1    system error
+ *      -2    parameter error
+ *      -3    volume with given uuid not found
+ *      -4    'mountp' buffer too small
+ */
+int GetMountpointFromUUID(char *mountp, size_t mountp_sz, const char *uuid_str)
+{
+   HANDLE hnd, hFile;
+   wchar_t volname[2048];
+   wchar_t pname[2048];
+   char tmp[128], *utf8name = NULL;
+   BOOL rc;
+   DWORD volser, count, eov, uuid;
+   size_t n;
+
+   /* Convert uuid_str to binary. Note that win32 volume serial number is not
+    * in standard UUID format, but is the form xxxx-xxxx, where x is a hex digit.
+    * Win32 returns volume serial number as 32-bit unsigned binary.
+    */
+   mountp[0] = '\0';
+   strncpy(tmp, uuid_str, sizeof(tmp));
+   if (strlen(uuid_str) != 9 || tmp[4] != '-') {
+      /* invalid volume serial number */
+      return -2;
+   }
+   for (n = 4; n < 9; n++) {
+      tmp[n] = tmp[n+1];
+   }
+   uuid = strtoul(tmp, NULL, 16);
+
+   /* Enumerate volumes on this system looking for matching volume serial number.
+    * Skip unmounted volumes.
+    */
+   hnd = FindFirstVolumeW(volname, 2048);
+   if (hnd == INVALID_HANDLE_VALUE) {
+      /* out of memory?? permissions problem?? */
+      return -1;
+   }
+   rc = TRUE;
+   while (rc) {
+      /* make sure it's a proper volume name */
+      if (volname[0] == L'\\' && volname[1] == L'\\' && volname[2] == L'?'
+            && volname[3] == L'\\' && volname[eov] == L'\\') {
+         /* Get volume's first mountpoint */
+         if (GetVolumePathNamesForVolumeNameW(volname, pname, 2048, &count)) {
+            /* retrieve serial from volume information */
+            if (GetVolumeInformationW(pname, NULL, 0, &volser, NULL, NULL, NULL, 0)) {
+               /* see if this volume matches requested UUID */
+               if (volser == uuid) {
+                  /* found matching volume. UTF16 mountpoint path is in pname. */
+                  break;
+               }
+            }
+         }
+      }
+      /* get next volume name */
+      rc = FindNextVolumeW(hnd, volname, 2048);
+   }
+   FindVolumeClose(hnd);
+   if (!rc) {
+      return -3;  /* volume not found */
+   }
+
+   /* Convert UTF16 mountpoint path to UTF8 */
+   UTF16ToAnsi(pname, &utf8name, &n);
+   if (n > mountp_sz) {
+      free(utf8name);
+      return -4;  /* mountp buffer too small */
+   }
+   strncpy(mountp, utf8name, mountp_sz);
+   free(utf8name);
+   return 0;
+}
+
+#else
+
+#ifdef HAVE_MNTENT_H
+#include <mntent.h>
+
+/*
+ *  Lookup mount point for device 'devname' and place in 'mountp'
+ *  using SunOS 4.1.3+ function getmntent().
+ *  On success, returns zero. On error, returns negative value :
+ *      -1    system error
+ *      -2    parameter error
+ *      -4    devname not mounted
+ *      -5    mountp buffer too small
+ */
+static int GetDevMountpoint(char *mountp, size_t mountp_sz, const char *devname)
+{
+   size_t n;
+   FILE *fs;
+   struct mntent *ent;
+   int rc;
+
+   mountp[0] = '\0';
+   if (!mountp_sz || !devname || !strlen(devname)) return -2;
+
+   /* Read either /proc/mounts or /etc/mtab depending on build system's glibc */
+   fs = setmntent(_PATH_MOUNTED, "r");
+   if (fs == NULL) return -1; /* unknown non-POSIX system?? */
+
+   rc = -4;
+   ent = getmntent(fs);
+   while (ent)
+   {
+      if (strcasecmp(devname, ent->mnt_fsname) == 0) {
+         n = strlen(ent->mnt_dir);
+         if (n >= mountp_sz) {
+            rc = -5;
+            break;
+         }
+         memmove(mountp, ent->mnt_dir, n);
+         mountp[n] = 0;
+         rc = 0;
+         break;
+      }
+      ent = getmntent(fs);
+   }
+   endmntent(fs);
+   return rc;
+}
+
+#else
+
+#ifdef HAVE_GETFSSTAT
+
+#ifdef HAVE_SYS_PARAM_H
+#include <sys/param.h>
+#endif
+#ifdef HAVE_SYS_MOUNT_H
+#include <sys/mount.h>
+#endif
+#ifdef HAVE_SYS_UCRED_H
+#include <sys/ucred.h>
+#endif
+
+/*
+ *  Lookup mount point for device 'devname' and place in 'mountp'
+ *  using BSD4.4+ function getfsstat().
+ *  On success, returns zero. On error, returns negative value :
+ *      -1    system error
+ *      -2    parameter error
+ *      -4    devname not mounted
+ */
+static int GetDevMountpoint(char *mountp, size_t mountp_sz, const char *devname)
+{
+   struct statfs *fs;
+   int mcount, fs_size, n, rc = -4;
+
+   mountp[0] = '\0';
+   if (!devname || !strlen(devname)) return -2;
+   mcount = getfsstat(NULL, 0, MNT_WAIT);
+   if (mcount < 1) return -1;
+   fs_size = (mcount + 1) * sizeof(struct statfs);
+   fs = (struct statfs*)malloc(fs_size);
+   if (!fs) return -1;
+   mcount = getfsstat(fs, fs_size, MNT_NOWAIT);
+   for (n = 0; n < mcount; n++)
+   {
+      if (strcasecmp(devname, fs[n].f_mntfromname) == 0) {
+         strncpy(mountp, fs[n].f_mntonname, mountp_sz);
+         rc = 0;
+      }
+   }
+   free(fs);
+   return rc;
+}
+
+#else
+
+/*
+ *  System has neither getmntent() nor getfsstat(). Return system error.
+ */
+static int GetDevMountpoint(char *mountp, size_t mountp_sz, const char *devname)
+{
+   return -1;
+}
+
+#endif  /* HAVE_GETFSSTAT */
+#endif  /* HAVE_MNTENT_H */
+
+#ifdef HAVE_LIBUDEV_H
+#include <libudev.h>
+
+/*
+ *  Locates disk partition containing file system with UUID given by 'uuid_str'.
+ *  If found, and the filesystem is mounted, returns the first mountpoint found in
+ *  string 'mountp'. On success, returns zero. On error, returns negative value :
+ *      -1    system error
+ *      -2    parameter error
+ *      -3    filesystem with given uuid not found
+ *      -4    filesystem not mounted
+ *      -5    mountp buffer too small
+ */
+int GetMountpointFromUUID(char *mountp, size_t mountp_sz, const char *uuid_str)
+{
+   struct udev *udev;
+   struct udev_enumerate *enumerate;
+   struct udev_list_entry *devices, *dev_list_entry;
+   struct udev_device *dev;
+   int rc = -3;
+   const char *dev_name, *path, *uuid;
+   size_t n, pos, dev_name_len;
+   char devlink[4096];
+
+   if (!mountp || !mountp_sz) return -2;
+   if (!uuid_str || !strlen(uuid_str)) return -2;
+
+   /* Enumerate devices with a filesystem UUID property */
+   udev = udev_new();
+   if (!udev) return -1;
+   enumerate = udev_enumerate_new(udev);
+   udev_enumerate_add_match_property(enumerate, "ID_FS_UUID", uuid_str);
+   udev_enumerate_scan_devices(enumerate);
+   devices = udev_enumerate_get_list_entry(enumerate);
+   /* Find device with specified UUID */
+   udev_list_entry_foreach(dev_list_entry, devices) {
+      path = udev_list_entry_get_name(dev_list_entry);
+      dev = udev_device_new_from_syspath(udev, path);
+      uuid = udev_device_get_property_value(dev, "ID_FS_UUID");
+      if (uuid && strcasecmp(uuid, uuid_str) == 0) {
+         /* Found device with this UUID, so get its kernel device node */
+         dev_name = udev_device_get_property_value(dev, "DEVNAME");
+         if (dev_name == NULL) {
+            /* Failed to get kernel device node */
+            break;
+         }
+         /* Lookup mountpoint of the kernel device node */
+         rc = GetDevMountpoint(mountp, mountp_sz, dev_name);
+         if (rc == 0) break;
+         /* If not mounted as the DEVNAME, also check if mounted as
+          * a device alias name from DEVLINKS */
+         dev_name = udev_device_get_property_value(dev, "DEVLINKS");
+         if (dev_name == NULL) {
+            /* Failed to get device alias links */
+            break;
+         }
+         dev_name_len = strlen(dev_name);
+         pos = 0;
+         while (rc == -4 && pos < dev_name_len) {
+            for (n = pos; n < dev_name_len && !isblank(dev_name[n]); n++) ;
+            n -= pos;
+            memmove(devlink, dev_name + pos, n);
+            devlink[n] = 0;
+            rc = GetDevMountpoint(mountp, mountp_sz, devlink);
+            pos += n;
+            while (pos < dev_name_len && isblank(dev_name[pos])) ++pos;
+         }
+         break;
+      }
+   }
+   udev_enumerate_unref(enumerate);
+   udev_unref(udev);
+   return rc;
+}
+
+#else
+
+#ifdef HAVE_BLKID_BLKID_H
+#include <blkid/blkid.h>
+
+/*
+ *  Locates disk partition containing file system with UUID given by 'uuid_str'.
+ *  If found, and the filesystem is mounted, returns the first mountpoint found in
+ *  string 'mountp'. On success, returns zero. On error, returns negative value :
+ *      -1    system error
+ *      -2    parameter error
+ *      -3    volume with given uuid not found
+ *      -4    volume not mounted
+ *      -5    mountp buffer too small
+ */
+int GetMountpointFromUUID(char *mountp, size_t mountp_sz, const char *uuid_str)
+{
+   int rc;
+   char *dev_name;
+
+   if (!mountp || !mountp_sz) return -2;
+   if (!uuid_str || !strlen(uuid_str)) return -2;
+
+   /* Get device with requested UUID from libblkid */
+#ifdef HAVE_BLKID_EVALUATE_TAG
+   dev_name = blkid_evaluate_tag("UUID", uuid_str, NULL);
+#else
+   dev_name = blkid_get_devname(NULL, "UUID", uuid_str);
+#endif
+   if (!dev_name) return -3;  /* no device with UUID found */
+
+   /* find mount point for device */
+   rc = GetDevMountpoint(mountp, mountp_sz, dev_name);
+   free(dev_name);
+   return rc;
+}
+
+#else
+
+/*
+ *  If built without libudev or libblkid support, then UUID lookup is a system error
+ */
+int GetMountpointFromUUID(char *mountp, size_t mountp_sz, const char *uuid_str)
+{
+   return -1;
+}
+
+#endif  /* HAVE_BLKID_BLKID_H */
+#endif  /* HAVE_LIBUDEV_H */
+
+#endif  /* HAVE_WINDOWS_H */

src/uuidlookup.h

@@ -0,0 +1,37 @@
+/* uuidlookup.h
+ *
+ *  This file is part of vchanger by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2008-2013 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+ */
+
+#ifndef __UUIDLOOKUP_H_
+#define __UUIDLOOKUP_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int GetMountpointFromUUID(char *mountp, size_t mountp_sz, const char *uuid_str);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /*  __UUIDLOOKUP_H_  */

src/vchanger.cpp

@@ -0,0 +1,661 @@
+/* vchanger.cpp
+ *
+ *  This file is part of the vchanger package
+ *
+ *  vchanger copyright (C) 2008-2015 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+ */
+
+#include "config.h"
+#ifdef HAVE_STDIO_H
+#include <stdio.h>
+#endif
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#ifdef HAVE_STDINT_H
+#include <stdint.h>
+#endif
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#ifdef HAVE_CTYPE_H
+#include <ctype.h>
+#endif
+#ifdef HAVE_LOCALE_H
+#include <locale.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#ifdef HAVE_SIGNAL_H
+#include <signal.h>
+#endif
+
+#include "util.h"
+#include "compat_defs.h"
+#include "loghandler.h"
+#include "diskchanger.h"
+
+DiskChanger changer;
+
+/*-------------------------------------------------
+ *  Commands
+ * ------------------------------------------------*/
+#define NUM_AUTOCHANGER_COMMANDS 9
+static char autochanger_command[NUM_AUTOCHANGER_COMMANDS][32] = { "list", "slots", "load",
+      "unload", "loaded", "listall", "listmags", "createvols", "refresh" };
+#define CMD_LIST        0
+#define CMD_SLOTS       1
+#define CMD_LOAD        2
+#define CMD_UNLOAD      3
+#define CMD_LOADED      4
+#define CMD_LISTALL     5
+#define CMD_LISTMAGS    6
+#define CMD_CREATEVOLS  7
+#define CMD_REFRESH     8
+
+/*-------------------------------------------------
+ *  Command line parameters
+ * ------------------------------------------------*/
+typedef struct _cmdparams_s
+{
+   bool print_version;
+   bool print_help;
+   int command;
+   int slot;
+   int drive;
+   int mag_bay;
+   int count;
+   tString label_prefix;
+   tString pool;
+   tString runas_user;
+   tString runas_group;
+   tString config_file;
+   tString archive_device;
+} CMDPARAMS;
+CMDPARAMS cmdl;
+
+/*-------------------------------------------------
+ *  Function to print version info to stdout
+ *------------------------------------------------*/
+static void print_version(void)
+{
+   fprintf(stdout, "%s version %s\n", PACKAGE_NAME, PACKAGE_VERSION);
+   fprintf(stdout, "\n%s.\n", COPYRIGHT_NOTICE);
+}
+
+/*-------------------------------------------------
+ *  Function to print command help to stdout
+ *------------------------------------------------*/
+static void print_help(void)
+{
+   fprintf(stdout, "vchanger version %s\n\n", PACKAGE_VERSION);
+   fprintf(stdout, "USAGE:\n\n"
+      "  vchanger [options] config_file command slot device drive\n"
+      "    Perform Bacula Autochanger API command for virtual\n"
+      "    changer defined by vchanger configuration file\n"
+      "    'config_file' using 'slot', 'device', and 'drive'\n"
+      "  vchanger [options] config_file LISTMAGS\n"
+      "    vchanger extension to list info on all defined magazines.\n"
+      "  vchanger [options] config_file CREATEVOLS mag_ndx count [start] [CREATEVOLS options]\n"
+      "    vchanger extension to create 'count' empty volume files on the magazine at\n"
+      "    index 'mag_ndx'. If specified, 'start' is the lowest integer to use when\n"
+      "    appending integers to the label prefix when generating volume names.\n"
+      "  vchanger [options] config_file REFRESH\n"
+      "  vchanger --version\n"
+      "    print version info\n"
+      "  vchanger --help\n"
+      "    print help\n"
+      "\nGeneral options:\n"
+      "    -u, --user=uid       user to run as (when invoked by root)\n"
+      "    -g, --group=gid      group to run as (when invoked by root)\n"
+      "\nCREATEVOLS command options:\n"
+      "    -l, --label=string   string to use as a prefix for determining the\n"
+      "                         barcode label of the volume files created. Labels\n"
+      "                         will be of the form 'string'_N, where N is an\n"
+      "                         integer. By default the prefix will be generated\n"
+      "                         using the changer name and the position of the\n"
+      "                         magazine's declaration in the configuration file.\n"
+      "    --pool=string        Overrides the default pool, defined in the vchanger\n"
+      "                         config file, that new volumes should be placed into\n"
+      "                         when labeling newly created volumes.\n"
+      "\nReport bugs to %s.\n", PACKAGE_BUGREPORT);
+}
+
+/*-------------------------------------------------
+ *  Function to parse command line parameters
+ *------------------------------------------------*/
+#define LONGONLYOPT_VERSION   0
+#define LONGONLYOPT_HELP      1
+#define LONGONLYOPT_POOL      2
+
+static int parse_cmdline(int argc, char *argv[])
+{
+   int c, ndx = 0;
+   tString tmp;
+   struct option options[] = { { "version", 0, 0, LONGONLYOPT_VERSION },
+         { "help", 0, 0, LONGONLYOPT_HELP },
+         { "user", 1, 0, 'u' },
+         { "group", 1, 0, 'g' },
+         { "label", 1, 0, 'l' },
+         { "pool", 1, 0, LONGONLYOPT_POOL },
+         { 0, 0, 0, 0 } };
+
+   cmdl.print_version = false;
+   cmdl.print_help = false;
+   cmdl.command = 0;
+   cmdl.slot = 0;
+   cmdl.drive = 0;
+   cmdl.mag_bay = 0;
+   cmdl.count = 0;
+   cmdl.label_prefix.clear();
+   cmdl.pool.clear();
+   cmdl.runas_user.clear();
+   cmdl.runas_group.clear();
+   cmdl.config_file.clear();
+   cmdl.archive_device.clear();
+   /* process the command line */
+   for (;;) {
+      c = getopt_long(argc ,argv, "u:g:l:", options, NULL);
+      if (c == -1) break;
+      switch (c) {
+      case LONGONLYOPT_VERSION:
+         cmdl.print_version = true;
+         cmdl.print_help = false;
+         return 0;
+      case LONGONLYOPT_HELP:
+         cmdl.print_version = false;
+         cmdl.print_help = true;
+         return 0;
+      case 'u':
+         cmdl.runas_user = optarg;
+         break;
+      case 'g':
+         cmdl.runas_group = optarg;
+         break;
+      case 'l':
+         cmdl.label_prefix = optarg;
+         break;
+      case LONGONLYOPT_POOL:
+         cmdl.pool = optarg;
+         break;
+      default:
+         fprintf(stderr, "unknown option %s\n", optarg);
+         return -1;
+      }
+   }
+
+   /* process positional params */
+   ndx = optind;
+   /* First parameter is the vchanger config file path */
+   if (ndx >= argc) {
+      fprintf(stderr, "missing parameter 1 (config_file)\n");
+      return -1;
+   }
+   cmdl.config_file = argv[ndx];
+   /* Second parameter is the command */
+   ++ndx;
+   if (ndx >= argc) {
+      fprintf(stderr, "missing parameter 2 (command)\n");
+      return -1;
+   }
+   tmp = argv[ndx];
+   tToLower(tStrip(tmp));
+   for (cmdl.command = 0; cmdl.command < NUM_AUTOCHANGER_COMMANDS; cmdl.command++) {
+      if (tmp == autochanger_command[cmdl.command]) break;
+   }
+   if (cmdl.command >= NUM_AUTOCHANGER_COMMANDS) {
+      fprintf(stderr, "'%s' is not a recognized command", argv[ndx]);
+      return -1;
+   }
+   /* Make sure only CREATEVOLS command has -l flag */
+   if (!cmdl.label_prefix.empty() && cmdl.command != CMD_CREATEVOLS) {
+      fprintf(stderr, "flag -l not valid for this command\n");
+      return -1;
+   }
+   /* Make sure only CREATEVOLS command has --pool flag */
+   if (!cmdl.pool.empty() && cmdl.command != CMD_CREATEVOLS) {
+      fprintf(stderr, "flag --pool not valid for this command\n");
+      return -1;
+   }
+   /* Check param 3 exists */
+   ++ndx;
+   if (ndx >= argc) {
+      /* Only 2 parameters given */
+      switch (cmdl.command) {
+      case CMD_LIST:
+      case CMD_LISTALL:
+      case CMD_SLOTS:
+      case CMD_LISTMAGS:
+      case CMD_REFRESH:
+         return 0;   /* OK, because these commands only need 2 parameters */
+      case CMD_CREATEVOLS:
+         fprintf(stderr, "missing parameter 3 (magazine index)\n");
+         break;
+      default:
+         fprintf(stderr, "missing parameter 3 (slot number)\n");
+         break;
+      }
+      return -1;
+   }
+   /* Process parameter 3 */
+   switch (cmdl.command) {
+   case CMD_LIST:
+   case CMD_LISTALL:
+   case CMD_SLOTS:
+   case CMD_LISTMAGS:
+   case CMD_REFRESH:
+      return 0;  /* These commands only need 2 params, so ignore extraneous */
+   case CMD_CREATEVOLS:
+      /* Param 3 for CREATEVOLS command is magazine index */
+      cmdl.mag_bay = (int)strtol(argv[ndx], NULL, 10);
+      if (cmdl.mag_bay < 0) {
+         fprintf(stderr, "invalid magazine index in parameter 3\n");
+         return -1;
+      }
+      break;
+   case CMD_LOADED:
+      /* slot is ignored for LOADED command, so just set to 1 */
+      cmdl.slot = 1;
+      break;
+   default:
+      /* Param 3 for all other commands is the slot number */
+      cmdl.slot = (int)strtol(argv[ndx], NULL, 10);
+      if (cmdl.slot < 1) {
+         fprintf(stderr, "invalid slot number in parameter 3\n");
+         return -1;
+      }
+      break;
+   }
+   /* Check param 4 exists */
+   ++ndx;
+   if (ndx >= argc) {
+      /* Only 3 parameters given */
+      switch (cmdl.command) {
+      case CMD_CREATEVOLS:
+         fprintf(stderr, "missing parameter 4 (count)\n");
+         break;
+      default:
+         fprintf(stderr, "missing parameter 4 (archive device)\n");
+         break;
+      }
+      return -1;
+   }
+   /* Process param 4 */
+   switch (cmdl.command) {
+   case CMD_CREATEVOLS:
+      /* Param 4 for CREATEVOLS command is volume count */
+      cmdl.count = (int)strtol(argv[ndx], NULL, 10);
+      if (cmdl.count <= 0 ) {
+         fprintf(stderr, "invalid count in parameter 4\n");
+         return -1;
+      }
+      break;
+   default:
+      /* Param 4 for all other commands is the archive device path */
+      cmdl.archive_device = argv[ndx];
+      break;
+   }
+   /* Check param 5 exists */
+   ++ndx;
+   if (ndx >= argc) {
+      /* Only 4 parameters given */
+      switch (cmdl.command) {
+      case CMD_CREATEVOLS:
+         cmdl.slot = -1;
+         return 0; /* OK, because parameter 5 optional */
+      default:
+         fprintf(stderr, "missing parameter 5 (drive index)\n");
+         break;
+      }
+      return -1;
+   }
+   switch (cmdl.command) {
+   case CMD_CREATEVOLS:
+      cmdl.slot = (int)strtol(argv[ndx], NULL, 10);
+      if (cmdl.slot < 0) cmdl.slot = -1;
+      break;
+   default:
+      /* Param 5 for all other commands is drive index number */
+      if (!isdigit(argv[ndx][0])) {
+         fprintf(stderr, "invalid drive index in parameter 5\n");
+         return -1;
+      }
+      cmdl.drive = (int)strtol(argv[ndx], NULL, 10);
+      if (cmdl.drive < 0) {
+         fprintf(stderr, "invalid drive index in parameter 5\n");
+         return -1;
+      }
+      break;
+   }
+
+   /*  note that any extraneous parameters are simply ignored */
+   return 0;
+}
+
+
+/*-------------------------------------------------
+ *   LIST Command
+ * Prints a line on stdout for each autochanger slot that contains a
+ * volume file, even if that volume is currently loaded in a drive.
+ * Output is of the form:
+ *       s:barcode
+ * where 's' is the one-based virtual slot number and 'barcode' is the barcode
+ * label of the volume in the slot. The volume in the slot is a file on one
+ * of the changer's magazines. A magazine is a directory, which is usually the
+ * mountpoint of a filesystem partition. The changer has one or more
+ * magazines, each of which may or may not be attached. Each volume file on
+ * each magazine is mapped to a virtual slot. The barcode is the volume filename.
+ *------------------------------------------------*/
+static int do_list_cmd()
+{
+   int slot, num_slots = changer.NumSlots();
+
+   /* Print all slot numbers, adding volume labels for non-empty slots */
+   for (slot = 1; slot <= num_slots; slot++) {
+      if (changer.SlotEmpty(slot)) {
+         fprintf(stdout, "%d:\n", slot);
+      } else {
+         fprintf(stdout, "%d:%s\n", slot, changer.GetVolumeLabel(slot));
+      }
+   }
+   log.Info("  SUCCESS sent list to stdout");
+   return 0;
+}
+
+
+/*-------------------------------------------------
+ *   SLOTS Command
+ * Prints the number of virtual slots the changer has
+ *------------------------------------------------*/
+static int do_slots_cmd()
+{
+   fprintf(stdout, "%d\n", changer.NumSlots());
+   log.Info("  SUCCESS reporting %d slots", changer.NumSlots());
+   return 0;
+}
+
+
+/*-------------------------------------------------
+ *   LOAD Command
+ * Loads the volume file mapped to a virtual slot into a virtual drive
+ *------------------------------------------------*/
+static int do_load_cmd()
+{
+   if (changer.LoadDrive(cmdl.drive, cmdl.slot)) {
+      fprintf(stderr, "%s\n", changer.GetErrorMsg());
+      log.Error("  ERROR loading slot %d into drive %d", cmdl.slot, cmdl.drive);
+      return 1;
+   }
+   log.Info("  SUCCESS loading slot %d into drive %d", cmdl.slot, cmdl.drive);
+   return 0;
+}
+
+
+/*-------------------------------------------------
+ *   UNLOAD Command
+ * Unloads the volume in a virtual drive
+ *------------------------------------------------*/
+static int do_unload_cmd()
+{
+   if (changer.UnloadDrive(cmdl.drive)) {
+      fprintf(stderr, "%s\n", changer.GetErrorMsg());
+      log.Error("  ERROR unloading slot %d from drive %d", cmdl.slot, cmdl.drive);
+      return 1;
+   }
+   log.Info("  SUCCESS unloading slot %d from drive %d", cmdl.slot, cmdl.drive);
+   return 0;
+}
+
+
+/*-------------------------------------------------
+ *   LOADED Command
+ * Prints the virtual slot number of the volume file currently loaded
+ * into a virtual drive, or zero if the drive is unloaded.
+ *------------------------------------------------*/
+static int do_loaded_cmd()
+{
+   int slot = changer.GetDriveSlot(cmdl.drive);
+   if (slot < 0) slot = 0;
+   fprintf(stdout, "%d\n", slot);
+   log.Info("  SUCCESS reporting drive %d loaded from slot %d", cmdl.drive, slot);
+   return 0;
+}
+
+/*-------------------------------------------------
+ *   LISTALL Command
+ * Prints state of drives (loaded or empty), followed by state
+ * of virtual slots (full or empty).
+ *------------------------------------------------*/
+static int do_list_all()
+{
+   int n, s, num_slots = changer.NumSlots();
+
+   /* Print drive state info */
+   for (n = 0; n < changer.NumDrives(); n++) {
+      if (changer.DriveEmpty(n)) {
+         fprintf(stdout, "D:%d:E\n", n);
+      } else {
+         s = changer.GetDriveSlot(n);
+         fprintf(stdout, "D:%d:F:%d:%s\n", n, s,
+               changer.GetVolumeLabel(s));
+      }
+   }
+   /* Print slot state info */
+   for (n = 1; n <= num_slots; n++) {
+      if (changer.SlotEmpty(n)) {
+         fprintf(stdout, "S:%d:E\n", n);
+      } else {
+         if (changer.GetSlotDrive(n) < 0)
+            fprintf(stdout, "S:%d:F:%s\n", n, changer.GetVolumeLabel(n));
+         else
+            fprintf(stdout, "S:%d:E\n", n);
+      }
+   }
+   log.Info("  SUCCESS sent listall to stdout");
+   return 0;
+}
+
+
+/*-------------------------------------------------
+ *   LISTMAGS (List Magazines) Command
+ * Prints a listing of all magazine bays and info on the magazine
+ * (if any) each bay contains.
+ *------------------------------------------------*/
+static int do_list_magazines()
+{
+   int n;
+
+   if (changer.NumMagazines() == 0) {
+      fprintf(stdout, "No magazines are defined\n");
+      log.Info("  SUCCESS no magazines are defined");
+      return 0;
+   }
+   for (n = 0; n < changer.NumMagazines(); n++) {
+      if (changer.MagazineEmpty(n)) {
+         fprintf(stdout, "%d:::\n", n);
+      } else {
+         fprintf(stdout, "%d:%d:%d:%s\n", n, changer.GetMagazineSlots(n),
+               changer.GetMagazineStartSlot(n), changer.GetMagazineMountpoint(n));
+      }
+   }
+   log.Info("  SUCCESS listing magazine info to stdout");
+   return 0;
+}
+
+/*-------------------------------------------------
+ *   CREATEVOLS (Create Volumes) Command
+ * Creates volume files on the specified magazine
+ *------------------------------------------------*/
+static int do_create_vols()
+{
+   /* Create new volume files on magazine */
+   if (changer.CreateVolumes(cmdl.mag_bay, cmdl.count, cmdl.slot, cmdl.label_prefix.c_str())) {
+      fprintf(stderr, "%s\n", changer.GetErrorMsg());
+      log.Error("  ERROR");
+      return -1;
+   }
+   fprintf(stdout, "Created %d volume files on magazine %d\n",
+           cmdl.count, cmdl.mag_bay);
+   log.Info("  SUCCESS");
+   return 0;
+}
+
+
+
+/* -------------  Main  -------------------------*/
+
+int main(int argc, char *argv[])
+{
+   int rc;
+   FILE *fs = NULL;
+   int32_t error_code;
+
+#ifdef HAVE_LOCALE_H
+   setlocale(LC_ALL, "");
+#endif
+
+   /* Log initially to stderr */
+   log.OpenLog(stderr, LOG_ERR);
+   /* parse the command line */
+   if ((error_code = parse_cmdline(argc, argv)) != 0) {
+      print_help();
+      return 1;
+   }
+   /* Check for --version flag */
+   if (cmdl.print_version) {
+      print_version();
+      return 0;
+   }
+   /* Check for --help flag */
+   if (cmdl.print_help) {
+      print_help();
+      return 0;
+   }
+   /* Read vchanger config file */
+   if (!conf.Read(cmdl.config_file)) {
+      return 1;
+   }
+   /* User:group from cmdline overrides config file values */
+   if (cmdl.runas_user.size()) conf.user = cmdl.runas_user;
+   if (cmdl.runas_group.size()) conf.group = cmdl.runas_group;
+   /* Pool from cmdline overrides config file */
+   if (!cmdl.pool.empty()) conf.def_pool = cmdl.pool;
+   /* If root, try to run as configured user:group */
+   rc = drop_privs(conf.user.c_str(), conf.group.c_str());
+   if (rc) {
+      fprintf(stderr, "Error %d attempting to run as user '%s'", rc, conf.user.c_str());
+      return 1;
+   }
+   /* Start logging to log file specified in configuration file */
+   if (!conf.logfile.empty()) {
+      fs = fopen(conf.logfile.c_str(), "a");
+      if (fs == NULL) {
+         fprintf(stderr, "Error opening opening log file\n");
+         return 1;
+      }
+      log.OpenLog(fs, conf.log_level);
+   }
+   /* Validate and commit configuration parameters */
+   if (!conf.Validate()) {
+      return 1;
+   }
+#ifndef HAVE_WINDOWS_H
+   /* Ignore SIGPIPE signals */
+   signal(SIGPIPE, SIG_IGN);
+#endif
+   /* Initialize changer. A lock file is created to serialize access
+    * to the changer. As a result, changer initialization may block
+    * for up to 30 seconds, and may fail if a timeout is reached */
+   if (changer.Initialize()) {
+      fprintf(stderr, "%s\n", changer.GetErrorMsg());
+      return 1;
+   }
+
+   /* Perform command */
+   switch (cmdl.command) {
+   case CMD_LIST:
+      log.Debug("==== preforming LIST command pid=%d", getpid());
+      error_code = do_list_cmd();
+      break;
+   case CMD_SLOTS:
+      log.Debug("==== preforming SLOTS command pid=%d", getpid());
+      error_code = do_slots_cmd();
+      break;
+   case CMD_LOAD:
+      log.Debug("==== preforming LOAD command pid=%d", getpid());
+      error_code = do_load_cmd();
+      break;
+   case CMD_UNLOAD:
+      log.Debug("==== preforming UNLOAD command pid=%d", getpid());
+      error_code = do_unload_cmd();
+      break;
+   case CMD_LOADED:
+      log.Debug("==== preforming LOADED command pid=%d", getpid());
+      error_code = do_loaded_cmd();
+      break;
+   case CMD_LISTALL:
+      log.Debug("==== preforming LISTALL command pid=%d", getpid());
+      error_code = do_list_all();
+      break;
+   case CMD_LISTMAGS:
+      log.Debug("==== preforming LISTMAGS command pid=%d", getpid());
+      error_code = do_list_magazines();
+      break;
+   case CMD_CREATEVOLS:
+      log.Debug("==== preforming CREATEVOLS command pid=%d", getpid());
+      error_code = do_create_vols();
+      break;
+   case CMD_REFRESH:
+      log.Debug("==== preforming REFRESH command pid=%d", getpid());
+      error_code = 0;
+      log.Info("  SUCCESS pid=%d", getpid());
+      break;
+   }
+   changer.Unlock();
+
+   /* If there was an error, then exit */
+   if (error_code) return error_code;
+
+   /* If not updating Bacula, then exit */
+   if (conf.bconsole.empty()) {
+      /* Bacula interaction via bconsole is disabled, so log warnings */
+      if (changer.NeedsUpdate())
+         log.Error("WARNING! 'update slots' needed in bconsole pid=%d", getpid());
+      if (changer.NeedsLabel())
+         log.Error("WARNING! 'label barcodes' needed in bconsole pid=%d", getpid());
+      return 0;
+   }
+
+   /* Update Bacula via bconsole */
+#ifndef HAVE_WINDOWS_H
+   changer.UpdateBacula();
+#else
+   /* Auto-update of bacula not working for Windows */
+   if (changer.NeedsUpdate())
+      log.Error("WARNING! 'update slots' needed in bconsole");
+   if (changer.NeedsLabel())
+      log.Error("WARNING! 'label barcodes' needed in bconsole");
+#endif
+
+   return 0;
+}

src/vconf.cpp

@@ -0,0 +1,309 @@
+/* vconf.cpp
+ *
+ *  This file is part of vchanger by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2008-2014 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+ *
+ *  Provides class for reading configuration file and providing access
+ *  to config variables.
+ */
+
+#include "config.h"
+#include <stdio.h>
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#ifdef HAVE_SYSLOG_H
+#include <syslog.h>
+#endif
+#ifdef HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif
+#ifdef HAVE_WINDOWS_H
+#include "targetver.h"
+#include <windows.h>
+#include <shlobj.h>
+#include <direct.h>
+#define DIR_DELIM "\\"
+#define DIR_DELIM_C '\\'
+#define MAG_VOLUME_MASK 0
+#else
+#define DIR_DELIM "/"
+#define DIR_DELIM_C '/'
+#define MAG_VOLUME_MASK S_IWGRP|S_IRWXO
+#endif
+
+#include "loghandler.h"
+#include "util.h"
+#define __VCONF_SOURCE 1
+#include "vconf.h"
+
+/* Global configuration object */
+VchangerConfig conf;
+
+/*-------------------------------------------
+ * Config file keywords and defaults
+ *-------------------------------------------*/
+
+#define VK_STORAGE_NAME "storage resource"
+#define VK_MAGAZINE "magazine"
+#define VK_WORK_DIR "work dir"
+#define VK_LOGFILE "logfile"
+#define VK_LOG_LEVEL "log level"
+#define VK_USER "user"
+#define VK_GROUP "group"
+#define VK_BCONSOLE "bconsole"
+#define VK_BCONSOLE_CONFIG "bconsole config"
+#define VK_DEF_POOL "default pool"
+
+
+/*================================================
+ *  Class VchangerConfig
+ *================================================*/
+
+/*--------------------------------------------------
+ * Default constructor
+ *------------------------------------------------*/
+VchangerConfig::VchangerConfig() : log_level(DEFAULT_LOG_LEVEL)
+{
+#ifdef HAVE_WINDOWS_H
+   char tmp[4096];
+   wchar_t wtmp[2048];
+#endif
+   storage_name = DEFAULT_STORAGE_NAME;
+   /* Set default Bacula work directory and vchanger config file path */
+#ifdef HAVE_WINDOWS_H
+   /* Bacula installs its work directory in the FOLDERID_ProgramData folder, which
+    * is in a different location depending on Windows version. */
+   wtmp[0] = 0;
+   memset(tmp, 0, sizeof(tmp));
+   if (SHGetFolderPathW(NULL, CSIDL_COMMON_APPDATA, NULL, SHGFP_TYPE_CURRENT, wtmp) == S_OK) {
+      wcstombs(tmp, wtmp, sizeof(tmp) - 1);
+      snprintf(DEFAULT_STATEDIR, sizeof(DEFAULT_STATEDIR), "%s%svchanger", tmp, DIR_DELIM);
+      snprintf(DEFAULT_LOGDIR, sizeof(DEFAULT_LOGDIR), "%s%svchanger", tmp, DIR_DELIM);
+   }
+#else
+   snprintf(DEFAULT_STATEDIR, sizeof(DEFAULT_STATEDIR), "%s/spool/vchanger", LOCALSTATEDIR);
+   snprintf(DEFAULT_LOGDIR, sizeof(DEFAULT_LOGDIR), "%s/log/vchanger", LOCALSTATEDIR);
+#endif
+   tFormat(work_dir, "%s%s%s", DEFAULT_STATEDIR, DIR_DELIM, storage_name.c_str());
+   /* Set default logfile path and log level */
+   tFormat(logfile, "%s%s%s.log", DEFAULT_LOGDIR, DIR_DELIM, storage_name.c_str());
+   /* Set default runas user and group */
+   user = DEFAULT_USER;
+   group = DEFAULT_GROUP;
+   /* Set default bconsole binary path */
+   bconsole = DEFAULT_BCONSOLE;
+   /* Set default pool for created volumes */
+   def_pool = DEFAULT_POOL;
+   /* Define config file keywords */
+   keyword.AddKeyword(VK_MAGAZINE, INIKEYWORDTYPE_MULTISZ);
+   keyword.AddKeyword(VK_WORK_DIR, INIKEYWORDTYPE_SZ);
+   keyword.AddKeyword(VK_LOGFILE, INIKEYWORDTYPE_SZ);
+   keyword.AddKeyword(VK_LOG_LEVEL, INIKEYWORDTYPE_LONG);
+   keyword.AddKeyword(VK_USER, INIKEYWORDTYPE_SZ);
+   keyword.AddKeyword(VK_GROUP, INIKEYWORDTYPE_SZ);
+   keyword.AddKeyword(VK_BCONSOLE, INIKEYWORDTYPE_SZ);
+   keyword.AddKeyword(VK_BCONSOLE_CONFIG, INIKEYWORDTYPE_SZ);
+   keyword.AddKeyword(VK_STORAGE_NAME, INIKEYWORDTYPE_SZ);
+   keyword.AddKeyword(VK_DEF_POOL, INIKEYWORDTYPE_SZ);
+}
+
+/*-------------------------------------------------
+ *  Method to read config file and set config values from keyword
+ *  value pairs. On success, returns true. Otherwise returns false.
+ *------------------------------------------------*/
+bool VchangerConfig::Read(const char *cfile)
+{
+   int rc, n;
+   IniFile tmp_ini = keyword;
+
+   tmp_ini.ClearKeywordValues();
+   if (!cfile || !cfile[0]) {
+      log.Error("config file not specified");
+      return false;
+   }
+   /* Does config file exist */
+   if (access(cfile, R_OK)) {
+      log.Error("could not access config file %s", cfile);
+      return false;
+   }
+   /* Read config file values */
+   rc = tmp_ini.Read(cfile);
+   if (rc) {
+      if (rc > 0) log.Error("Parse error in %s at line %d", cfile, rc);
+      else log.Error("could not open config file  %s", cfile);
+      return false;
+   }
+   /* Update keyword values */
+   keyword.Update(tmp_ini);
+
+   /* Get bacula-dir.conf storage resource name associated with this changer name */
+   if (keyword[VK_STORAGE_NAME].IsSet()) {
+      storage_name = (const char*)keyword[VK_STORAGE_NAME];
+      tStrip(storage_name);
+      if (storage_name.empty()) {
+         log.Error("config file keyword '%s' must specify a non-empty string", VK_STORAGE_NAME);
+         return false;
+      }
+      /* Update defaults for this changer name */
+      tFormat(work_dir, "%s%s%s", DEFAULT_STATEDIR, DIR_DELIM, storage_name.c_str());
+      tFormat(logfile, "%s%s%s.log", DEFAULT_LOGDIR, DIR_DELIM, storage_name.c_str());
+   }
+
+   /* Get work directory for this changer */
+   if (keyword[VK_WORK_DIR].IsSet()) {
+      work_dir = (const char*)keyword[VK_WORK_DIR];
+      tStrip(work_dir);
+      if (work_dir.empty()) {
+         log.Error("config file keyword '%s' must specify a non-empty string", VK_WORK_DIR);
+         return false;
+      }
+   }
+
+   /* Get logfile path */
+   if (keyword[VK_LOGFILE].IsSet()) {
+      logfile = (const char*)keyword[VK_LOGFILE];
+      tStrip(logfile);
+      if (logfile.empty()) {
+         log.Error("config file keyword '%s' must specify a non-empty string", VK_LOGFILE);
+         return false;
+      }
+   }
+
+   /* Get log level */
+   if (keyword[VK_LOG_LEVEL].IsSet()) {
+      log_level = (int)keyword[VK_LOG_LEVEL];
+      if (log_level < 0 || log_level > 7) {
+         log.Error("config file keyword '%s' must specify a value between 0 and 7 inclusive", VK_LOG_LEVEL);
+         return false;
+      }
+   }
+
+   /* Get user to run as */
+   if (keyword[VK_USER].IsSet()) {
+      user = (const char*)keyword[VK_USER];
+      tStrip(user);
+      if (user.empty()) {
+         log.Error("keyword '%s' value cannot be empty", VK_USER);
+         return false;
+      }
+   }
+
+   /* Get group to run as */
+   if (keyword[VK_GROUP].IsSet()) {
+      group = (const char*)keyword[VK_GROUP];
+      tStrip(group);
+      if (group.empty()) {
+         log.Error("keyword '%s' value cannot be empty", VK_GROUP);
+         return false;
+      }
+   }
+
+   /* Get path of bconsole binary */
+   if (keyword[VK_BCONSOLE].IsSet()) {
+      bconsole = (const char*)keyword[VK_BCONSOLE];
+      tStrip(bconsole);
+   }
+
+   /* Get path of bconsole config file */
+   if (keyword[VK_BCONSOLE_CONFIG].IsSet()) {
+      bconsole_config = (const char*)keyword[VK_BCONSOLE_CONFIG];
+      tStrip(bconsole_config);
+   }
+
+   /* Get default pool */
+   if (keyword[VK_DEF_POOL].IsSet()) {
+      def_pool = (const char*)keyword[VK_DEF_POOL];
+      tStrip(def_pool);
+      if (def_pool.empty()) {
+         log.Error("keyword '%s' value cannot be empty", VK_DEF_POOL);
+         return false;
+      }
+   }
+
+   /* Get list of assigned magazines */
+   if (keyword[VK_MAGAZINE].IsSet()) {
+      magazine = keyword[VK_MAGAZINE];
+   }
+   if (magazine.empty()) {
+      log.Error("config file keyword '%s' must appear at least once", VK_MAGAZINE);
+      return false;
+   }
+   for (n = 0; n < (int)magazine.size(); n++) {
+      tStrip(magazine[n]);
+      if (magazine[n].empty()) {
+         log.Error("config file keyword '%s' cannot be set to the empty string", VK_MAGAZINE);
+         return false;
+      }
+   }
+   return true;
+}
+
+/*-------------------------------------------------
+ *  Method to validate config file values and commit default
+ *  values for any keywords not specified
+ *------------------------------------------------*/
+bool VchangerConfig::Validate()
+{
+   mode_t old_mask;
+
+   /* Validate work directory is usable */
+   if (access(work_dir.c_str(), W_OK)) {
+      if (errno == ENOENT) {
+         /* If not found then try to create work dir */
+         old_mask = umask(027);
+#ifndef HAVE_WINDOWS_H
+         if (mkdir(work_dir.c_str(), 0770)) {
+#else
+         if (_mkdir(work_dir.c_str())) {
+#endif
+            log.Error("could not create work directory '%s'", work_dir.c_str());
+            umask(old_mask);
+            return false;
+         }
+         umask(old_mask);
+      } else {
+         log.Error("could not access work directory '%s'", work_dir.c_str());
+         return false;
+      }
+   }
+
+   /* Validate bconsole config file is readable */
+   if (bconsole.empty()) bconsole_config.clear();
+   if (!bconsole_config.empty()) {
+      if (access(bconsole_config.c_str(), R_OK)) {
+         /* If bconsole config doesn't exist or is not readable, disable use of bconsole */
+         log.Warning("cannot read bconsole config file. Disabling Bacula interaction.");
+         bconsole.clear();
+         bconsole_config.clear();
+      }
+   }
+
+   return true;
+}

src/vconf.h

@@ -0,0 +1,70 @@
+/*  vconf.h
+ *
+ *  This file is part of vchanger by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2008-2014 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+*/
+
+#ifndef _VCONF_H_
+#define _VCONF_H_ 1
+
+#include "inifile.h"
+
+#define DEFAULT_LOG_LEVEL 3
+#define DEFAULT_USER "bacula"
+#define DEFAULT_GROUP "tape"
+#define DEFAULT_BCONSOLE "/usr/sbin/bconsole"
+#define DEFAULT_STORAGE_NAME "vchanger"
+#define DEFAULT_POOL "Scratch"
+
+/* Configuration values */
+
+class VchangerConfig
+{
+public:
+   IniFile keyword;
+   tString work_dir;
+   tString config_file;
+   tString logfile;
+   int log_level;
+   tString user;
+   tString group;
+   tString bconsole;
+   tString bconsole_config;
+   tString storage_name;
+   tString def_pool;
+   tStringArray magazine;
+public:
+   VchangerConfig();
+   virtual ~VchangerConfig() {}
+   bool Read(const char *cfile);
+   inline bool Read(const tString &cfile) { return Read(cfile.c_str()); }
+   bool Validate();
+};
+
+#ifndef __VCONF_SOURCE
+extern VchangerConfig conf;
+extern char DEFAULT_LOGDIR[4096];
+extern char DEFAULT_STATEDIR[4096];
+#else
+char DEFAULT_LOGDIR[4096];
+char DEFAULT_STATEDIR[4096];
+#endif
+
+#endif /* _VCONF_H_ */

src/win32_util.c

@@ -0,0 +1,259 @@
+/*  win32_util.c
+ *
+ *  This file is part of vchanger by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2008-2012 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+ */
+
+#include "config.h"
+
+#ifdef HAVE_WINDOWS_H
+
+#include "targetver.h"
+#include <windows.h>
+#include <winerror.h>
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#ifdef HAVE_STDINT_H
+#include <stdint.h>
+#endif
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+
+#include "win32_util.h"
+
+#ifndef ENODATA
+#define ENODATA EIO
+#endif
+#ifndef ENOMEDIUM
+#define ENOMEDIUM ENOSPC
+#endif
+
+/*-------------------------------------------------
+ *  Convert 100 ns intervals since 1601-01-01 00:00:00 UTC in 'ftime' to
+ *  seconds since 1970-01-01 00:00:00 UTC and return as type time_t.
+ *-------------------------------------------------*/
+time_t ftime2utime(const FILETIME *ftime)
+{
+   uint64_t ut = ftime->dwHighDateTime;
+   ut <<= 32;
+   ut |= ftime->dwLowDateTime; /* 100 ns intervals since FILETIME epoch */
+   ut -= EPOCH_FILETIME; /* convert to 100 ns intervals since Unix epoch */
+   ut /= 10000000; /* convert to seconds since Unix epoch */
+   return (time_t)ut;
+}
+
+
+/*-------------------------------------------------
+ *  Utility function to convert an ANSI string 'str' to a UTF-16 string.
+ *  'u16str' is pointer to a pointer to a caller supplied buffer where the
+ *  UTF-16 string will be created. 'u16size' is a pointer to a size_t variable
+ *  that contains the size of the supplied buffer. On entry, if the pointer that
+ *  'u16str' points to is NULL, then a buffer for the result UTF-16 string will
+ *  be allocated using malloc. A pointer to the allocated buffer will be
+ *  returned in *u16str and the size of the allocated buffer (in bytes) will be
+ *  returned in *u16size. It is the caller's responsibility to free the
+ *  allocated buffer. If the caller supplies a buffer then no memory will be
+ *  allocated, and if the buffer is too small then NULL will be returned.
+ *  On success, a pointer to the UTF-16 string is returned.
+ *  On error, NULL is returned.
+ *-------------------------------------------------*/
+wchar_t* AnsiToUTF16(const char *str, wchar_t **u16str, size_t *u16size)
+{
+   size_t needed;
+   UINT acp = GetACP();  /* Use current active code page for conversion */
+
+   if (!str) {
+      return NULL; /* NULL input string is an error */
+   }
+   /* Determine size of buffer needed for the UTF-16 string */
+   needed = MultiByteToWideChar(acp, 0, str, -1, NULL, 0);
+   if (*u16str) {
+      /* If caller supplied a buffer, check that it's large enough */
+      if (*u16size < needed) {
+         return NULL; /* caller's buffer is too small */
+      }
+   } else {
+      /* If caller did not supply buffer, then allocate one */
+      *u16size = needed * sizeof(wchar_t);
+      *u16str = (wchar_t*)malloc(*u16size);
+   }
+   /* Do the ANSI to UTF-16 conversion */
+   MultiByteToWideChar(acp, 0, str, -1, *u16str, *u16size);
+   return *u16str;
+}
+
+
+/*-------------------------------------------------
+ *  Utility function to convert UTF-16 string 'u16str' to an ANSI string.
+ *  'str' is a pointer to a pointer to a caller supplied buffer where the UTF-8
+ *  string will be created. 'str_size' is a pointer to a size_t variable that
+ *  contains the size of the supplied buffer. On entry, if the pointer that
+ *  'str' points to is NULL, then a buffer for the result ANSI string will
+ *  be allocated using malloc. A pointer to the allocated buffer will be
+ *  returned in *str and the size of the allocated buffer (in bytes) will
+ *  be returned in *str_size. It is the caller's responsibility to free the
+ *  allocated buffer.If the caller supplies a buffer then no memory will be
+ *  allocated, and if the buffer is too small then NULL will be returned.
+ *  On success, a pointer to the ANSI string is returned.
+ *  On error, NULL is returned.
+ *-------------------------------------------------*/
+char *UTF16ToAnsi(const wchar_t *u16str, char **str, size_t *str_size)
+{
+   size_t needed;
+   UINT acp = GetACP();  /* Use current code page for conversion */
+
+   if (!u16str) {
+      return NULL; /* NULL input string is an error */
+   }
+   /* Determine size of buffer needed for UTF-8 string */
+   needed = WideCharToMultiByte(acp, 0, u16str, -1, NULL, 0, NULL, NULL);
+   if (*str) {
+      /* If caller supplied a buffer, check that it's large enough */
+      if (*str_size < needed) {
+         return NULL; // caller's buffer is too small */
+      }
+   } else {
+      /* If caller did not supply buffer, then allocate one */
+      *str_size = needed;
+      *str = (char*)malloc(*str_size);
+   }
+   /* Do the UTF-16 to ANSI conversion */
+   WideCharToMultiByte(acp, 0, u16str, -1, *str, *str_size, NULL, NULL);
+   return *str;
+}
+
+
+/*-------------------------------------------------
+ *  Translate win32 error codes to errno
+ *-------------------------------------------------*/
+int w32errno(DWORD werr)
+{
+   switch (werr) {
+   case ERROR_SUCCESS:
+      return 0;
+   case ERROR_ACCESS_DENIED:
+   case ERROR_SHARING_VIOLATION:
+   case ERROR_LOCK_VIOLATION:
+      return EACCES;
+   case ERROR_NO_PROC_SLOTS:
+   case ERROR_MORE_DATA:
+   case ERROR_MAX_THRDS_REACHED:
+   case ERROR_ACTIVE_CONNECTIONS:
+   case ERROR_DEVICE_IN_USE:
+      return EAGAIN;
+   case ERROR_INVALID_HANDLE:
+      return EBADF;
+   case ERROR_BUSY:
+   case ERROR_PIPE_BUSY:
+   case ERROR_PIPE_CONNECTED:
+   case ERROR_SIGNAL_PENDING:
+   case ERROR_CHILD_NOT_COMPLETE:
+      return EBUSY;
+   case ERROR_WAIT_NO_CHILDREN:
+      return ECHILD;
+   case ERROR_POSSIBLE_DEADLOCK:
+      return EDEADLOCK;
+   case ERROR_FILE_EXISTS:
+   case ERROR_ALREADY_EXISTS:
+      return EEXIST;
+   case ERROR_PROCESS_ABORTED:
+   case ERROR_NOACCESS:
+      return EFAULT;
+   case ERROR_INVALID_AT_INTERRUPT_TIME:
+      return EINTR;
+   case ERROR_INVALID_DATA:
+   case ERROR_INVALID_PARAMETER:
+   case ERROR_FILENAME_EXCED_RANGE:
+   case ERROR_META_EXPANSION_TOO_LONG:
+   case ERROR_INVALID_SIGNAL_NUMBER:
+   case ERROR_THREAD_1_INACTIVE:
+   case ERROR_BAD_PIPE:
+   case ERROR_NO_TOKEN:
+   case ERROR_NEGATIVE_SEEK:
+   case ERROR_BAD_USERNAME:
+      return EINVAL;
+   case ERROR_OPEN_FAILED:
+   case ERROR_SIGNAL_REFUSED:
+   case ERROR_NO_SIGNAL_SENT:
+   case ERROR_IO_DEVICE:
+   case ERROR_CRC:
+      return EIO;
+   case ERROR_TOO_MANY_OPEN_FILES:
+      return EMFILE;
+   case ERROR_NO_MORE_SEARCH_HANDLES:
+   case ERROR_NO_MORE_FILES:
+      return ENFILE;
+   case ERROR_HANDLE_EOF:
+      return ENODATA;
+   case ERROR_BAD_DEVICE:
+   case ERROR_BAD_UNIT:
+   case ERROR_INVALID_DRIVE:
+      return ENODEV;
+   case ERROR_FILE_NOT_FOUND:
+   case ERROR_PATH_NOT_FOUND:
+   case ERROR_INVALID_NAME:
+   case ERROR_BAD_PATHNAME:
+   case ERROR_BAD_NETPATH:
+   case ERROR_BAD_NET_NAME:
+      return ENOENT;
+   case ERROR_SHARING_BUFFER_EXCEEDED:
+      return ENOLCK;
+   case ERROR_NOT_CONNECTED:
+   case ERROR_NOT_READY:
+      return ENOMEDIUM;
+   case ERROR_NOT_ENOUGH_MEMORY:
+   case ERROR_OUTOFMEMORY:
+      return ENOMEM;
+   case ERROR_DISK_FULL:
+   case ERROR_END_OF_MEDIA:
+   case ERROR_EOM_OVERFLOW:
+   case ERROR_NO_DATA_DETECTED:
+   case ERROR_HANDLE_DISK_FULL:
+      return ENOSPC;
+   case ERROR_CALL_NOT_IMPLEMENTED:
+   case ERROR_NOT_SUPPORTED:
+      return ENOSYS;
+   case ERROR_DIRECTORY:
+      return ENOTDIR;
+   case ERROR_DIR_NOT_EMPTY:
+      return ENOTEMPTY;
+   case ERROR_FILE_INVALID:
+      return ENXIO;
+   case ERROR_NOT_OWNER:
+   case ERROR_CANNOT_MAKE:
+      return EPERM;
+   case ERROR_BROKEN_PIPE:
+   case ERROR_NO_DATA:
+      return EPIPE;
+   case ERROR_WRITE_PROTECT:
+      return EROFS;
+   case ERROR_SETMARK_DETECTED:
+   case ERROR_BEGINNING_OF_MEDIA:
+      return ESPIPE;
+   case ERROR_NOT_SAME_DEVICE:
+      return EXDEV;
+   }
+   return ENOSYS;
+}
+
+#endif
+

src/win32_util.h

@@ -0,0 +1,50 @@
+/*  win32_util.h
+ *
+ *  This file is part of vchanger by Josh Fisher.
+ *
+ *  vchanger copyright (C) 2008-2013 Josh Fisher
+ *
+ *  vchanger is free software.
+ *  You may redistribute it and/or modify it under the terms of the
+ *  GNU General Public License version 2, as published by the Free
+ *  Software Foundation.
+ *
+ *  vchanger is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with vchanger.  See the file "COPYING".  If not,
+ *  write to:  The Free Software Foundation, Inc.,
+ *             59 Temple Place - Suite 330,
+ *             Boston,  MA  02111-1307, USA.
+*/
+
+#ifndef COMPAT_UTIL_H_
+#define COMPAT_UTIL_H_
+
+#ifdef HAVE_WINDOWS_H
+
+/* Some utility functions needed for Windows version */
+
+/* number of 100 ns intervals between FILETIME epoch and Unix epoch */
+#define EPOCH_FILETIME (116444736000000000LL)
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+time_t ftime2utime(const FILETIME *time);
+wchar_t* AnsiToUTF16(const char *str, wchar_t **u16str, size_t *u16size);
+char *UTF16ToAnsi(const wchar_t *u16str, char **str, size_t *str_size);
+int w32errno(DWORD werr);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+
+#endif  /* _COMPAT_UTIL_H */

win32/installer.nsi

@@ -0,0 +1,150 @@
+#................-
+#. Date of creation: 2015-06-01
+#. Name: installer.nsi
+#................-
+#..- Package parameters ...
+SetCompress force
+SetCompressor lzma
+!include LogicLib.nsh
+!include MUI2.nsh
+!include WinMessages.nsh
+!include x64.nsh
+!insertmacro MUI_LANGUAGE English
+#... Installation Windows Parameters ..
+!define APPNAME "vchanger"
+!define COMPANYNAME "Josh Fisher"
+!define DESCRIPTION "A virtual disk autochanger for Bacula"
+# These three must be integers
+!define VERSIONMAJOR 1
+!define VERSIONMINOR 0
+!define VERSIONBUILD 1
+# These will be displayed by the "Click here for support information" link in "Add/Remove Programs"
+!define HELPURL "http://sourceforge.net/projects/vchanger/" # "Support Information" link
+Name "vchanger 1.0.1"
+VIProductVersion "1.0.1.0"
+VIAddVersionKey /LANG=${LANG_ENGLISH} "ProductName" "vchanger Installer"
+VIAddVersionKey /LANG=${LANG_ENGLISH} "LegalCopyright" "Copyright (c) Josh Fisher 2008-2015"
+VIAddVersionKey /LANG=${LANG_ENGLISH} "FileDescription" "vchanger Windows Installer"
+VIAddVersionKey /LANG=${LANG_ENGLISH} "FileVersion" "1.0.1"
+ShowInstDetails nevershow
+SilentInstall normal
+RequestExecutionLevel admin
+AutoCloseWindow True
+OutFile "vchanger-1.0.1.exe"
+
+PageEx license
+  LicenseData "license.txt"
+PageExEnd
+Page directory
+Page instfiles
+
+UninstPage uninstConfirm
+UninstPage instfiles
+
+Section "vchanger 32-bit" SEC0001
+  SectionIn RO
+  SetOutPath $INSTDIR
+  ClearErrors
+  CreateDirectory "$APPDATA\vchanger"
+  IfErrors 0 +3
+    MessageBox MB_OK 'Could not create vchanger work directory'
+    Quit
+  File license.txt
+  File ReleaseNotes.txt
+  File vchangerHowto.html
+  File vchanger-example.conf
+  File vchanger.exe
+  WriteUninstaller "uninstall.exe"
+  IfFileExists "$APPDATA\vchanger\vchanger.conf" +2 0
+    CopyFiles "$INSTDIR\vchanger-example.conf" "$APPDATA\vchanger\vchanger.conf"
+  WriteRegStr HKLM "Software\vchanger" "Install_Dir" "$INSTDIR"
+  ; Write the uninstall keys for Windows
+  WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\vchanger" "DisplayName" "vchanger"
+  WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\vchanger" "UninstallString" '"$INSTDIR\uninstall.exe"'
+  WriteRegDWORD HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\vchanger" "NoModify" 1
+  WriteRegDWORD HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\vchanger" "NoRepair" 1
+  CreateDirectory "$SMPROGRAMS\vchanger"
+  CreateShortCut "$SMPROGRAMS\vchanger\Uninstall.lnk" "$INSTDIR\uninstall.exe" "" "$INSTDIR\uninstall.exe" 0
+  CreateShortCut "$SMPROGRAMS\vchanger\vchanger Howto.lnk" "$INSTDIR\vchangerHowto.html" "" "$INSTDIR\vchangerHowto.html" 0
+  CreateShortcut "$SMPROGRAMS\vchanger\vchanger config.lnk" "$PROGRAMFILES32\Windows NT\Accessories\wordpad.exe" "$APPDATA\vchanger\vchanger.conf"
+SectionEnd
+
+Section "vchanger 64-bit" SEC0002
+  SectionIn RO
+  SetOutPath $INSTDIR
+  ClearErrors
+  CreateDirectory "$APPDATA\vchanger"
+  IfErrors 0 +3
+    MessageBox MB_OK 'Could not create vchanger work directory'
+    Quit
+  File license.txt
+  File ReleaseNotes.txt
+  File vchangerHowto.html
+  File vchanger-example.conf
+  File "/oname=vchanger.exe" vchanger64.exe
+  WriteUninstaller "uninstall.exe"
+  IfFileExists "$APPDATA\vchanger\vchanger.conf" +2 0
+    CopyFiles "$INSTDIR\vchanger-example.conf" "$APPDATA\vchanger\vchanger.conf"
+  WriteRegStr HKLM "Software\vchanger" "Install_Dir" "$INSTDIR"
+  ; Write the uninstall keys for Windows
+  WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\vchanger" "DisplayName" "vchanger"
+  WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\vchanger" "UninstallString" '"$INSTDIR\uninstall.exe"'
+  WriteRegDWORD HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\vchanger" "NoModify" 1
+  WriteRegDWORD HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\vchanger" "NoRepair" 1
+  CreateDirectory "$SMPROGRAMS\vchanger"
+  CreateShortCut "$SMPROGRAMS\vchanger\Uninstall.lnk" "$INSTDIR\uninstall.exe" "" "$INSTDIR\uninstall.exe" 0
+  CreateShortCut "$SMPROGRAMS\vchanger\vchanger Howto.lnk" "$INSTDIR\vchangerHowto.html" "" "$INSTDIR\vchangerHowto.html" 0
+  CreateShortcut "$SMPROGRAMS\vchanger\vchanger config.lnk" "$PROGRAMFILES64\Windows NT\Accessories\wordpad.exe" "$APPDATA\vchanger\vchanger.conf"
+SectionEnd
+
+# Uninstaller Section
+Section "Uninstall"
+  # Remove shortcuts, if any
+  Delete "$SMPROGRAMS\vchanger\*.*"
+  RMDir "$SMPROGRAMS\vchanger"
+
+  # Remove files and uninstaller
+  Delete $INSTDIR\vchanger.exe
+  Delete $INSTDIR\license.txt
+  Delete $INSTDIR\ReleaseNotes.txt
+  Delete $INSTDIR\vchangerHowto.html
+  Delete $INSTDIR\vchanger-example.conf
+  Delete $INSTDIR\uninstall.exe
+  RMDir "$INSTDIR"
+
+  # Remove information from the registry
+  DeleteRegKey HKLM "Software\vchanger"
+  DeleteRegKey HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\vchanger"
+SectionEnd
+
+Function .onInit
+  SetShellVarContext all
+  #Determine the bitness of the OS and enable the correct section
+  ${If} ${RunningX64}
+    SectionSetFlags SEC0001  ${SECTION_OFF}
+    SectionSetFlags SEC0002  ${SF_SELECTED}
+    StrCpy $INSTDIR "$PROGRAMFILES64\vchanger"
+    SetRegView 64
+  ${Else}
+    SectionSetFlags SEC0002  ${SECTION_OFF}
+    SectionSetFlags SEC0001  ${SF_SELECTED}
+    StrCpy $INSTDIR "$PROGRAMFILES32\vchanger"
+    SetRegView 32
+  ${EndIf}
+FunctionEnd
+
+Function un.onInit
+  SetShellVarContext all
+  #Determine the bitness of the OS and enable the correct section
+  ${If} ${RunningX64}
+    StrCpy $INSTDIR "$PROGRAMFILES64\vchanger"
+    SetRegView 64
+  ${Else}
+    StrCpy $INSTDIR "$PROGRAMFILES32\vchanger"
+    SetRegView 32
+  ${EndIf}
+FunctionEnd
+
+Function .onInstSuccess
+  MessageBox MB_OK "You have successfully installed vchanger."
+FunctionEnd

win32build

@@ -0,0 +1,52 @@
+#!/bin/sh
+#
+# Build for 32-bit and 64-bit Windows binary and create NSIS installer
+#
+VERS=1.0.1
+rm -f ./win32/vchanger-$VERS.exe
+rm -f ./win32/vchanger.exe
+rm -f ./win32/vchanger64.exe
+rm -f ./win32/vchanger-example.conf
+rm -f ./win32/vchangerHowto.htm
+rm -f ./win32/license.txt
+rm -f ./win32/ReleaseNotes.txt
+rm -rf /tmp/vchanger-win32
+mkdir /tmp/vchanger-win32
+make distclean
+
+#
+# Configure for Linux mingw cross-compile and build 32-bit Windows binary
+#
+./configure --host=i686-w64-mingw32 --build=`./config.guess` --prefix=/tmp/vchanger-win32
+[ $? -eq 0 ] || exit 1
+make
+[ $? -eq 0 ] || exit 1
+make install-strip
+[ $? -eq 0 ] || exit 1
+cp /tmp/vchanger-win32/bin/vchanger.exe ./win32
+
+#
+# Configure for Linux mingw cross-compile and build 64-bit Windows binary
+#
+make distclean
+rm -rf /tmp/vchanger-win32/*
+./configure --host=x86_64-w64-mingw32 --build=`./config.guess` --prefix=/tmp/vchanger-win32
+[ $? -eq 0 ] || exit 1
+make
+[ $? -eq 0 ] || exit 1
+make install-strip
+[ $? -eq 0 ] || exit 1
+cp /tmp/vchanger-win32/bin/vchanger.exe ./win32/vchanger64.exe
+cp /tmp/vchanger-win32/share/doc/vchanger-$VERS/vchanger-example.conf ./win32
+cp /tmp/vchanger-win32/share/doc/vchanger-$VERS/vchangerHowto.html ./win32
+cp COPYING ./win32/license.txt
+cp ReleaseNotes ./win32/ReleaseNotes.txt
+rm -rf /tmp/vchanger-win32
+
+#
+# Create NSIS installer
+#
+cd win32
+makensis installer.nsi
+chmod 755 vchanger-$VERS.exe
+cd ..