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2020-01-12Add a start anchor parameter to sqfs_dir_reader_find_by_pathDavid Oberhollenzer
It optionally allows code that does tree traversal to start at an inode that it obtained previously and makes it easier to keep state externally. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-12Add an inode deep copy helper function to libsquashfsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-11Some clarifications and fixes for the format specificationDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-11Update README.md, CHANGELOG.mdDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-08Always append '/' to names of directoriesDavid Oberhollenzer
In the distant past, the first versions of tar did not have any header field to indicate the type of the file being packed. Instead, they used to append a '/' to the filename to indicate that an entry is a actually a directory. GNU tar still does this today, despite having a header field for file type. This commit modifies sqfs2tar to append slashes to directory names for compatibillity and to mimic GNU tar behaviour more closely. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-06Cleanup: use parse_size function to parse compressor optionsDavid Oberhollenzer
The XZ option parser had a similar function to parse_size. This commit removes the other implementation and extends parse_size with the one missing feature, i.e. allowing a '%' suffix for a relative value. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-05Update README.md, CHANGELOG.mdDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-04Add a write-up on the on-disk formatDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-02Support parsing [device] block size argument with SI suffixDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-31Include sys/sysmacros.h on any GNU libc platformPino Toscano
sys/sysmacros.h is an implementation of GNU libc, so include it unconditionally when that libc is used. Signed-off-by: Pino Toscano <toscano.pino@tiscali.it>
2019-12-30Bump version numberv0.8David Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-30Fix zlib paths in automake fileDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-29Add PKG_CONFIG_PATH back to mkwinbins.shDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-29Update READMEDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-29Add a small version of zlib that can be built in staticallyDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-28Add a small version of liblz4 that can be built in staticallyDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-27Require the copora tests suits to be enabled explicitlyDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-27Fix pkg-config settings for mkwinbins.shDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-27Make sure the tests are run after generating Windows binariesDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-27Fix corpora test scripts for Windows cross buildDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-27Fix filename_sane test for WindowsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-26Update CHANGELOG.mdDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-26sqfsdiff: treat subdirectories correctly when comparing dir listingsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-23Simplify hard link handlingDavid Oberhollenzer
- For now, enforce that hard links don't point to a directories. - Instead of doing the swaping trickery, just reorder the flat list and hand out new inode numbers. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-23Minor cleanup in inode allocationDavid Oberhollenzer
- Remove unnecessary counter argument, we already have the total count. - Remove the return status, there is no failure branch. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-23Extend sqfs2tar to preserve hard linksDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-23Add libtar.a function to create hardlink recordsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-23Add simple sqfs_tree_node_t hardlink detection to libcommonDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-23Bring back the flat list of inodes in libfstreeDavid Oberhollenzer
It makes further processing simpler and doesn't leak the abstraction into upper layers. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-22Add hard link support to gensquashfs and tar2sqfsDavid Oberhollenzer
In libtar, set a special flag if the header is actually a hard link. In tar2sqfs, create a hard link node and skip the rest for hard links. Also refues to set the root attributes from a hard link, it may refere to a node that we have missed earlier, there is nothing else that we can do here. In fstree_from_file, add a "link" command for adding hard links. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-22Add basic support for handling and serializing hard linksDavid Oberhollenzer
In libfstree, add a function to add a hard link to the fstree. The hard links stores the target in the data.target field, canonicalizes the target and sets a sentinel mode. A second function is used to resolve link, i.e. replacing it with a direct pointer, setting another sentinel mode and increasing the targets link count. The post process function tries to resolve unresolved hard links and only allocates inode numbers for nodes that aren't hard links. If the target node of a hard link does not have an inode number yet, the two need to be swapped, since this is also the order in which they are serialized. The serialization function in libcommon simply has to skip hard link nodes and when writing directory entries, use the inode num/ref of the target node. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-19Split the libfstree add_by_path tree traversal function outDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-19Fix link count for file inodes in tree serialization.David Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-19Fix spelling mistakes found by lintianBenjamin Drung
Signed-off-by: Benjamin Drung <benjamin.drung@cloud.ionos.com>
2019-12-18Add an explicit link count to the fstree nodesDavid Oberhollenzer
Gets initialized to 2 for directories, 1 for all other types. The count of the parent node is automatically incremented. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-18Rename fstree "slink_target" to "target"David Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-18Move is_filename_sane to libfstree, add test casesDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-18Cleanup: internalize some fstree functionsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-18Cleanup: remove the unused "block_size" from the fstreeDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-18Cleanup: merge the fstree post processing functionsDavid Oberhollenzer
Instead of having 3 different functions for sorting the tree, numbering the nodes and generating a file list, that all have to be used in the right order, this commit merges them into a single "fstree_post_process" function. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-16Remove fstree inode tableDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-16Do the fstree serialization in a recursive tree walkDavid Oberhollenzer
Remove usage of the "inode table". Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-16Use the sqfs_dir_writer_t to create the NFS export tableDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-16Add ability to sqfs_dir_writer to create an export tableDavid Oberhollenzer
If the dir writer is used to create the directory table, it neccessarily sees every single inode number and coresponding location for all inodes that are referenced by the filesystem tree. This means it can easily collect that information internally to create an export table later on. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-16Cleanup: split sqfs_serialize_fstree into smaller functionsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-16Corpora tests: fix behaviour if SOURCE_DATE_EPOCH is setDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-15Add a test script that turns all test tarballs into SquashFS imagesDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-15Clamp mtime in tar2sqfs to the representable 32 bit range.David Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-15Fix tar GNU sparse header parsingDavid Oberhollenzer
Extract the filename correctly. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-14Add a test case for reading binary xattrs from pax/schily headersDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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