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2023-04-19libfstree: Remove external file_info_t declarationDavid Oberhollenzer
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>
2023-04-17Add unit test for directory iteratorDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-17Internalize fstree_insert_sortedDavid 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>
2023-04-12Cleanup: gensquashfs: split readlink handling out of directory scanDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-12gensquashfs: merge some of the Windows and Unix entry filtering codeDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-12Win32: gensquashfs: Merge fstree_from_dir and subdir implementationsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-12Split out Windows directory iteration code to a dir_iterator_t typeDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-12Win32: Fix fstree CLI mtime range checkDavid Oberhollenzer
On Windows, long is a 32 bit integer, so we cannot check if the long value is greater than UINT32_MAX. Instead, check if strtol sets errno. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-12Fix: missing libcompat dependency for libio tests on WindowsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-12Fix fstree defaults usage in Windows version of fstree_from_dirDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-12Add mkwinbins.sh based script to setup a mingw development enviromentDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-06libfstree: simplify hard link resolution codeDavid Oberhollenzer
We do not allow hard links to directories, so we can toss the special case handling code for that. The visited mechanism was pointless anyway, because we don't even descend down hard links in the recursive tree handling functions. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-06Cleanup: libfstree: move all the hardlink related code to hardlink.cDavid Oberhollenzer
For some reason, the recursive hardlink resolution ended up in post process, calling into the non recrusive one in hardlink.c that wasn't used elsewhere. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-06libfstree: Move left over dirscan flags to gensquashfsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-04Move scan callback from libfstree to gensquashfsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-02Move fstree CLI code to libcommonDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-01libsquashfs: remove the default block writer alignment featureDavid Oberhollenzer
The idea of the block align feature was to allow micro-managing that some files are forcefully aligned to 1k/4k ("device block") boundaries, hoping to improve access time at the cost of data density. The feature was not exposed in the tools for a long time and eventuall added to the sort file. Measurement and experimentation showed, that it in fact worsened the read performance on a test system with an old micro SD card as the bottle neck. The feature is removed, and if needed, can be brought back simply by wrapping/sub-classing the default block writer, if need be.. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-02-21libio: Add an xfrm stream wrapper testDavid Oberhollenzer
This basically re-uses the libxfrm pack/unpack tests, but runs the data through a stream wrapper. When de-compressing, we have a ridiculously tiny input buffer, to force the wrapper to snort up the data in several attempts until the it can decompress something. We read the data byte-by-byte to force the wraper to internally cache the uncompressed data and spoon feed it to us. It has to be completely transparent to us that it internaly decompresses and also reads transparently across concatenated streams. When compressing, we only require that the output is smaller than the input and not equal to it. We also require the wrapper to flush the wrapped stream when it is flushed. We then test if the compressed data can be unpacked again. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-02-21libxfr: Fix zstd test naming errorDavid Oberhollenzer
We were previously building pack for unpack and vice versa. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-02-21libtar: generate entire xattr header in a single bufferDavid Oberhollenzer
Having it all in one buffer allows us the re-use the "generat GNU record" function. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-02-20Remove ostream_printfDavid Oberhollenzer
By cobbling together the xattr lines manually in libtar, the need (and thus the function itself) are removed. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-02-20Fix compressor ID enumerator in format documentationDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-02-15Fix broken C++ guard in rbtree.hDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-02-12libtar: Add a test for the tar writing codeDavid Oberhollenzer
Generate a simple tarball and compare it with a reference. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-02-11libio: Add a test case for istream-to-ostream spliceDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-02-10libio: Add a test for istream precache/read/skipDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-02-08libtar: remove need for skip_padding functionDavid Oberhollenzer
In the istream implementation, automatically skip the padding when we reach end-of-file. Also skip file AND padding when we destroy the object. Replace the remaining instances with a simple istream_skip instead and remove the wrapper from libtar. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-02-08tar2sqfs: Use tar istream spliceDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-02-08libtar: Add an istream_t implementationDavid Oberhollenzer
The tar_istream_t reads the data from a tar file, having been given the header, and synthesizes zero bytes for sparse regions. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-02-05Update source tree hierarchy details in COPYINGDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-02-04libtar: internalize the declaration of read_octalDavid Oberhollenzer
Use read_number in the places that remain. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-02-04libtar: simplfy parsing of old GNU sparse formatDavid Oberhollenzer
There was some code duplication for extracting the sparse entry fields from the start record and the subsequent extended record. This commit introduces a data structure for both and unifies the parsing code paths. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-02-04libtar: some minor cleanupsDavid Oberhollenzer
- Use is_memory_zero from libutil - Move checksum update function to tar writer code - Move checksum verify function to tar reader code - Only export the function to compute the checksum Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-01-31Reintegrate test code with library codeDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-01-31Move library source into src sub-directoryDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-01-30Remove without-tools feature switchDavid Oberhollenzer
This was originally added for the Windows port, which initially didn't have tool support. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-01-26libio: add a test case for append_sparse fallback implementationDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-01-26libio: move simple wrappers back into header as inline functionsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-01-19libtar: simplify padd_file functionDavid Oberhollenzer
We have an "append_sparse" function in libio, with a fallback, so use that. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-01-19Split stream compression out of libioDavid Oberhollenzer
Move it to a separate libxfrm library, where it can be independently tested as well. The bulk of the new code is also mainly test cases for the compressors. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-01-19Simplify cleanup on errorDavid Oberhollenzer
The drop/destroy functions support passing in a NULL pointer. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-01-19Implement rudimentary reference counting for sqfs_object_tDavid Oberhollenzer
Implement grab/drop functions to increase/decrease reference count and destroy the object if the count drops to 0. Make sure that all objects that maintain internal references actually grab that reference, duplicate it in the copy function, drop it in the destroy handler. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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