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2023-08-31gensquashfs: use generic integer parsing helpersDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-08-10Refactor: rename dir_iterator_t to sqfs_dir_iterator_tDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-07-10Move sqfs_dir_entry_t code from libio into libsquashfsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-07-03Refactor: rename dir_entry_t to sqfs_dir_entry_tDavid Oberhollenzer
Exact operation performed: git ls-files -z | \ xargs -0 sed -i -e 's/dir_entry_t/sqfs_dir_entry_t/g Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-07-03Consolidate some of the stray integer parsersDavid Oberhollenzer
There are several ad-hoc int/uint parsers scattered around the code, add a single helper function for that task and replace the multiple instances. A simple white-box test case is added for the utility function. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-23gensquashfs: general cleanup after restructuring the parsing codeDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-23gensquashfs: pull usage of line splitting up into fstree_from_fileDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-23gensquashfs: use line split helper in parsing glob argumentsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-23gensquashfs: use line split helpers in parsing sort filesDavid Oberhollenzer
Make use of the helpers in libutil Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-23gensquashfs: split glob filter flags into separate tableDavid Oberhollenzer
Allow spaces between `-type` and the character, look it up from a table instead of having `-type <char>` pairs in the main table. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-20Move istream_get_line function to libutilDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-15libsquashfs: cleanup the flag situation on istream/ostream functionsDavid Oberhollenzer
- The ostream creation functions already have flag arguments, but make them an sqfs_u32 instead of int. - Add flag arguments to the istream functions, sanitzie and forward them when opening the handle. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-15Migrate file istream/ostream from libio to libsquashfsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-15Overhaul sqfs_istream_t/sqfs_ostream_t error handlingDavid Oberhollenzer
Report an error number from the implementations, change the users to forward that error number (which also means libtar write header/link now returns an error code) and all subsequent binaries to use sqfs_perror() instead of relying on the function to print an error internally. Also, make sure to preserve errno/GetLastError() in the implementations and print out a stringified error in sqfs_perror() if the error code indicates an I/O error. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-15libsquashfs: Add sqfs_open_native_file functionDavid Oberhollenzer
Having a function to interpret the flags and open a native file handle simplifies the istream/ostream/file code which shares that decoding part, particularly on windows where the character set needs to be transformed. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-15Mass rename istream_t/ostream_t with sqfs_ prefixDavid Oberhollenzer
istream_t becomes sqfs_istream_t and ostream_t becomes sqfs_ostream_t Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-15libio: remove single line wrapper functionsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-05gensquashfs: replace XattrMapEntry with sqfs_xattr_tDavid Oberhollenzer
It has the same members, but with the added benefit that we already have helper functions for it in libsquashfs and we can just hose it directly into the xattr writer. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-05libsqfs: Add an xattr writer function to add a combined key-value structDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-03libio: consolidate add-hoc memory istream_t implementationsDavid Oberhollenzer
In several places, there are ad-hoc istream_t implementations that read from a memory buffer to test something else stacked on top. This commit consolidates those ad-hoc implmentations into a proper one in libio, and uses the chance to remove external files for some older tests that rely on file I/O instead. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-01Cleanup some redundant header inclusionsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-05-30libfstree: accept dir_entry_t instead of path and struct statDavid Oberhollenzer
Because the dir_entry_t also has a flag for had links, the regular node and hard-link node interface can be unified. This simplifies the users of libfstree (gensquashfs, tar2sqfs) since we can simply hose the entries from an iterator directly into the tree. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-05-30gensquashfs: simplify parsing of glob flagsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-05-30gensquashfs: Cleanup glob error handlingDavid Oberhollenzer
Move the error handling to the end of the function, make sure we properly handle all allocation failures. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-05-30gensquashfs: split glob related code from fstree_from_file.cDavid Oberhollenzer
The glob function and everything associated is moved to a separate file, the entry point exposed any the special case handling is removed from the other callbacks in fstree_from_file.c Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-05-22libtar: add a dir_iterator_t implementation for tar filesDavid Oberhollenzer
The existing istream_t wrapper is mered into this one as well, we can open the files via the iterators open_file_ro function. Unit tests and tar2sqfs are modified accordingly. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-05-14libio: Move skip function into dir_iterator_t base interfaceDavid Oberhollenzer
For regular iterator types, it's a no-op, for the tree iterator, it skips the sub tree. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-05-14libio: merge directory iterator headers, document API and behaviorDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-05-13Move directory iterator from libutil to libioDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-30Move the pattern matching from gensquashfs to dir_tree_iterator_tDavid Oberhollenzer
A simple unit test is added that mainly checks for the behavior of recursing into a sub-tree and only matching the children at the end, but not reporting the parents that don't match. The behavior is inteded to immitate the `find` command. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-29gensquashfs: use prefix functionality for glob_files target nodeDavid Oberhollenzer
Piece together the prefix path and pass it to the iterator. That way, we get the full target paths back from the iterator and can use those directly in the callback for filtering. We also no longer need the root node for fstree_from_dir (always tree root) and the callback can no longer return an error state. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-29Move dir entry remapping from gensquashfs to libutilDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-29gensquashfs: Dismantle the scan_dir wrapperDavid Oberhollenzer
Create the directory iterator externally and pass it to fstree_from_dir. The unit test is also removed, because the heavy lifting is now done outside the function. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-29gensquashfs: Move the scan_dir callback before creating the nodeDavid Oberhollenzer
This way, we can remove the discard_node function and simplify the scan_dir code further. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-29gensquashfs: Remove flag handling from scan_dirDavid Oberhollenzer
The logic was previously there to allow recursing into directories that exist in the fstree and the scanned directory, but not create new directories. Because the dir_tree_iterator_t supports reporting contents but not directories (and does DFS), we can simply check if the parent of the directory exists. Under normal DFS, it must exist, because we created it earlier. If we are skipping the directory entries, it only exists if it was there earlier and we can skip entries that have a non-existant parent, retainint the old behavior. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-29gensquashfs: Remove fstree_from_subdirDavid Oberhollenzer
It is only used in the glob function, so assemble the path there and jus tuse fstree_from_dir. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-29Move type based filtering to libutil dir_tree_iterator_tDavid Oberhollenzer
Limited unit testing for the flags is added, particularly the abillity to recurse into sub-directories, but not report the parents as individual entries. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-29gensquashfs: use stacked tree iterator in fstree_from_dirDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-29gensquashfs: simplify sort_file_listDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-29Fix: gensquashfs: sort by file breaking up the directory listDavid Oberhollenzer
When inserting the selected entry, the next_by_type pointer is supposed to be cleared, but the code accidentaly broke up the next pointer, removing the element from the tree. Fixes: e1e655b02f6c54177f9070eeb221ab95c6d4e20f Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-21libutil: unix: simplify/unify directory iterator error handlingDavid Oberhollenzer
Instead of printing out error messages, return an errro ID and match the behavior with the Windows implementation. Also, don't check first if the struct stat says it is a link, the readlinkat() system call will fail if it isn't. Avoid confusing the deputy. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-21libutil: Add a method to the directory iterator to open a sub directoryDavid Oberhollenzer
This is also the reason we need to lug around the original directory path on Windows. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-19libfstree: hoist file link pointer into parent structureDavid Oberhollenzer
Instead of having a file_info_t next pointer, requiring an up-cast to tree_node_t all the time, simply add a "next_by_type" pointer to the tree node itself, which can also be used for other purposes by other node types and removes the need for up-casting. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-19libfstree: Change file_info_t already_matched into flagDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-19libfstree: get rid of dir_info_tDavid Oberhollenzer
The single boolean created_implicitly can be replaced with a general purpose flag field. The "children" pointer can then be hoisted directly into the data union of tree_node_t. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-17fstree_from_dir: Move the recursion step into scan_dirDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-17Remove the remainder of the Win32 fstree_from_dir implementationDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-17Implement a version of the directory iterator for UnixDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-12Merge Windows and Unix implementations of fstree_from_subdirDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-12Copy the dir scan pattern from the Windows implementationDavid Oberhollenzer
If we look at a sub directory, piece totether the full path and open that instead. This allows us to move the directory open into the scan function and get rid of the dirfd trickery. Also pull the recusion step out into the parent function. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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