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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>
2023-06-21Make trim() helpers from get_line available outsideDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-21Add a helper to libutil for splitting token separated linesDavid Oberhollenzer
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>
2023-05-13Move 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>
2023-04-29Move dir entry remapping from gensquashfs to libutilDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-29libutil: Add an option to the dir_tree_iterator_t to add a path prefixDavid Oberhollenzer
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>
2023-04-29libutil: Add a stacked, recursive directory tree iteratorDavid Oberhollenzer
The concept is simple: Use the existing, platform dependent iterator to walk a directory. If a directory entry is encountered, recurse into it using the open_subdir handler, reconstruct the full path for any entries discovered using the directory stack. An additional function is added to skip a sub-hierarchy. 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>
2023-04-17Implement a version of the directory iterator for UnixDavid 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>
2023-02-15Fix broken C++ guard in rbtree.hDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2022-11-18Add a single, central base64 decoderDavid Oberhollenzer
Similar to the hex blob decoder, we need this once for tar and once for the filemap xattr parser. Simply add a single, central implementation to libutil, with a simple unit test, and then use it in both libtar and gensquashfs. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2022-11-18Add a single, central hex blob decoderDavid Oberhollenzer
Since we need it twice (once for tar, once for the filemap xattr parser), add a single, central implementation to libutil, add a unit test for that implementation and then use it in both libtar and gensquashfs. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2022-09-20block writer: move block comaprison to utility functionDavid Oberhollenzer
Slightly modify the byte-for-byte comparison function to compare an arbitrary range in a file and move it to libutil. Instead of calling it for each block in the block writer, simply let it check an entire range in the block writer and compute the range position/size of the reference ahead, before looking for potential matches. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2022-07-08Cleanup: move source date epoch code back to libutilDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2022-07-08Cleanup: move filename_sane & canonicalize_path functions to libutilDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2022-07-08Cleanup: move mkdir_p from libcommon to libutilDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2022-07-08Cleanup: move test.h to libutilDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2022-07-08Cleanup: move libutil headers to sub directoryDavid Oberhollenzer
Move all the libutil stuff from the toplevel include/ to a util/ sub directory and fix up the includes that make use of them. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-11-25Cleanup: remove what is left of libutilDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-11-25Cleanup: move overflow safe alloc code into libsquashfsDavid Oberhollenzer
There were only a hand full of instances outside libsquashfs that used the alloc code. In most cases, the thing allocated hat its size derived from something already in memory anyway, so it is safe to assume its size fits into a size_t. At the same time, the opencoded Windows path conversion functions are all unified into a single helper function. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-11-24Cleanup: completely move str_table into libsquashfs internalsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-11-24Cleanup: remove unused str_table functionsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-11-24Cleanup: move canonicalize_name back to libfstree.aDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-11-23Fix various data type problemsDavid Oberhollenzer
- Make sure the mockup constant for AT_FDCWD is actualy an int - Don't use %lld printf format specified, mscrt doesn't have that - On 64 bit windows, use %I64u format specified for size_t - Seperate the overflow macro stuff from the form specifier stuff - Move the whole thing to compat.h and clean it up a little so it becomes readable. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-11-22Cleanup: move all the compatibillity fluff to a dedicated "libcompat"David Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-11-18Remove directory stack codeDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-11-18Add container_of implementation to utilitiesDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-11-15Add missing "sys/sysmacros.h" header for back in for LinuxDavid Oberhollenzer
On BSD based systems, major(3), minor(3) and makedev(3) are defined in "sys/types.h", but on GNU/Linux systems they are in "sys/sysmacros.h", which is not available on the BSD systems. This patch fixes up compat.h to include "sys/sysmacros.h" on Linux based systems. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-11-15Fix build on BSD systemsAlyssa Ross
I tested FreeBSD, DragonflyBSD, NetBSD and OpenBSD and the endian macros weren't necessary (and in fact caused errors) on all of them. Because OpenBSD ships with an ancient GCC that doesn't support the checked addition/multiplication builtins, the build there would fail unless built with CC=cc or CC=clang. I changed configure.ac to prefer cc over gcc, so that the distribution's compiler preference is respected. (The default is [gcc cc]). I had to move AC_PROG_CC above LT_INIT because otherwise LT_INIT would run AC_PROG_CC first, and we wouldn't have a chance to use non-default parameters.
2019-10-28Add macro for printf format specifier for size_tDavid Oberhollenzer
The MSVC runtime is a wierdo C89 platform with some cherry picked features from C99 (which does not include the "%zu" format specifier). This commit adds a macro with a size dependend format specifier to be used instead. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-28Add fallback implementation for getsubopt()David Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-28Add a minimal fallback implementation for getline()David Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-28Add libutil implementation for strndup in case it isn't availableDavid Oberhollenzer
"Some" "non-POSIX systems" don't have that. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-25Add mockup of "struct stat" for WinDOSDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-07Cleanup: move libutil related headers to "util" sub directoryDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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