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2020-12-06libsqfs: implement exact matching in the default block writer.David Oberhollenzer
Instead of comparing (compresed, disk-size, checksum) tuples to find block matches, do an exact, byte-for-byte comparison of the data stored on disk to avoid the possibility of a spurious colision. Since this is the desired behaviour, make it the default, optionally overrideable through a flag. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-11-13Fix: include MacOS compat byteswab definitions in LZO compressorDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-11-07Fix: libsquashfs: xattr_writer: return NULL if calloc failsDavid Oberhollenzer
Instead of dereferencing the NULL pointer and crashing. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-11-07Cleanup: libcommon: try to split up some of the larger filesDavid Oberhollenzer
The sqsf_writer is moved to a separate header, as well as the compressor related stuff. The statistics function is moved into the writer code, as this is the only place that actually uses it. The writer code itself is split up into a hand full of file in their own subdirectory. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-11-06Minor "late night typing" fixes in documentationDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-11-05Update CHANGELOG.mdDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-11-05Bump version in package scriptsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-11-02Cleanup: eliminate the now practically empty test_tar.hDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-11-02Remove package scripts from release tarballsDavid Oberhollenzer
Some of the build scripts contain hashes of the release tarballs. When releasing a new version, in addition to bumping all the version numbers, this would require the amazing stunt of putting the hashes of the release tarball into the release tarball itself, for a number of different hash algorithms. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-10-31Fix the canterbury corpus testDavid Oberhollenzer
The message listing the compressors has changed. We need a new pattern to extract the supported compressors. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-10-31Add a test case for tar2sqfs root becomes file & link filteringDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-10-28Restructure benchmark text file, add decompression benchmarkDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-10-28Add an initial decompression benchmarkDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-10-28documentation: move benchmark description to separate fileDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-10-28Fix: tar2sqfs: if --root-becomes is used, also retarget linksDavid Oberhollenzer
In addition to skipping non-prefixed files and stripping the prefix off of entries we accept, the targets of links also have to be altered, since they can be absolute paths with the root prefix attached. This can affect symbolic links as well. Altough they are allowed to point into nowhere, across filesystem boundaries, they may also be absolute paths refering to existing locations in the filesystem, so no distinction is made by default. However, the later may be intended (e.g. only a subdirectory is packed into SquashFS and then mounted at that location), so a command line switch is added to disable symlink retargetting. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-10-27Build package using Docker imagesSébastien Gross
Docker image can now be used to build packages for following distributions: * alpine * archlinux * centos * fedora * debian * ubuntu * opensuse Signed-off-by: Sébastien Gross <seb•ɑƬ•chezwam•ɖɵʈ•org>
2020-10-27Fix multiple issues in RPM package builderSébastien Gross
* suse_version macro were mission the question mark prefix. * replace el macro by centos macro. * Add dependency to SELinux. Signed-off-by: Sébastien Gross <seb•ɑƬ•chezwam•ɖɵʈ•org>
2020-10-27Add pkgconf to Archlinux build depsSébastien Gross
pkgconf is required to build squashf-tools-ng Archlinux package. In some cases it may not be installed (such as in Docker images). Signed-off-by: Sébastien Gross <seb•ɑƬ•chezwam•ɖɵʈ•org>
2020-10-02packaging: fix documentationSébastien Gross
Signed-off-by: Sébastien Gross <seb•ɑƬ•chezwam•ɖɵʈ•org>
2020-10-02DEB: Add documentation in libsquashfs-devSébastien Gross
This patch allows to include Doxygen generated documentation to squashfs development package. Signed-off-by: Sébastien Gross <seb•ɑƬ•chezwam•ɖɵʈ•org>
2020-10-02DEB: Add official debian packaging files.Sébastien Gross
debian build directory has been imported from official Debian package for squashfs-tools-ng version 1.0.2 found on p.d.o: https://packages.debian.org/source/sid/squashfs-tools-ng Signed-off-by: Sébastien Gross <seb•ɑƬ•chezwam•ɖɵʈ•org>
2020-10-02Add README fileSébastien Gross
Comments from all package files have been relocated into the README file. Signed-off-by: Sébastien Gross <seb•ɑƬ•chezwam•ɖɵʈ•org>
2020-10-02PKG: add PKGBUILD to build Archlinux packageSébastien Gross
Signed-off-by: Sébastien Gross <seb•ɑƬ•chezwam•ɖɵʈ•org>
2020-10-02APK: add APKBUILD to build Alpine packageSébastien Gross
Signed-off-by: Sébastien Gross <seb•ɑƬ•chezwam•ɖɵʈ•org>
2020-10-02RPM: Add Fedora, OpenSUSE support and bump to v1.0.2Sébastien Gross
Signed-off-by: Sébastien Gross <seb•ɑƬ•chezwam•ɖɵʈ•org>
2020-09-29Fix: rdsquashfs: describe: don't escape the prefixed file input pathDavid Oberhollenzer
If rdsquashfs describes a filesystem, is configured to use a prefix-path and a file contains a space, the resulting input path has the prefix printed as is and the rest of the string in quotation marks. gensquashfs simply takes the entire rest of the line as is as its input path and no longer finds the file. Fix this by omitting the escapes and quotation marks for the input path. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-09-29Update tar2sqfs/sqfs2tar documentationDavid Oberhollenzer
Modify the man pages and help texts to mention compression support, make the help option display a list of supported compressors. Also clarify the squashfs compressor list in the help text to state that the list shows block compressors supported for SquashFS compression. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-09-29Replace file/getline usage with istreamDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-09-29Add a more usefull getline-like function to libfstreamDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-09-29libfstream: Rework unix sparse file writingDavid Oberhollenzer
Instead of immediately seeking forward, record the sparse bytes "written" and then do the seek the next time we write data, or do an ftruncate if we do a sync. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-09-24Fix: tar2sqfs: when skipping non-prefixed files, also skip contentsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-09-24Fix: tar2sqfs: don't touch the path after determining it is brokenDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-09-17Add bzip2 library to travis-ci dependenciesDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-09-17Add a check whether libzstd supports stream compressionDavid Oberhollenzer
Streaming compression was added fairly recently to zstd (and then the API was changed a few times). Rather than rely on libzstd versioning macros, this commit adds an m4 script to test at configure time if the enums/functions we need are available by trying to compile a small sample. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-09-17Fix: add missing compiler/linker flagsDavid Oberhollenzer
If tar2sqfs and sqfs2tar want to use comperssion via libfstream, they need to link against the compressor libraries. Also, libfstream may need the apropriate cflags to access the headers on some platforms. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-09-16Add bzip2 stream compression supportDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-09-16Add zstd stream compressor implementation to libfstreamDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-09-16Re-import crc32 code to builtin zlib copyDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-09-16Implement input decompression support for tar2sqfsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-09-16Implement istream decompression supportDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-09-16Remodel libtar/tar2sqfs to read data from an istream_tDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-09-16Implement output compression support for sqfs2tarDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-09-16Implement ostream compressor wrapperDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-09-16Remodel file extraction tools to use libfstreamDavid Oberhollenzer
This commit rewrites the libtar write paths to use libfstream insead of a FILE pointer. Also, the libcommon file extraction function is remodeled to use libfstream. In accordance, rdsquashfs, sqfs2tar and sqfsdiff have some minor adjustments made to work with the ported libtar and libcommon. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-09-16Implement a data writer based output streamDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-09-16Add stream I/O abstraction libraryDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-09-03Patch level release 1.0.2v1.0.2David Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-09-03Fix integer bounds checking in GNU tar sparse format 1.0 parserDavid Oberhollenzer
- Make sure the file actually has that many records before trying to read one and fail if not. - Use the helper macros for size_t overflow checking instead of assuming size_t == uint64_t. - Impose a "reasonable" upper bound on the number of data segments and insist that there is at least one entry. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-09-03Remove tar test cases for file flags (not applicable)David Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-09-03Cleanup: reduce tar test cases to a few generic C filesDavid Oberhollenzer
This commit removes the existing tar test cases that simply call the generic test case function with several different paths with generic test case source files that are parameneterized via the pro-processor. For each tar archive, a separate test case is generated. On the one hand, this reduces the test source code to practically nothing. On the other hand, a test binary is generated for every distinct test case, instead of one per group and we get more detailed insights if something goes wrong. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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