squashfs-tools-ng.git - A new set of tools and libraries for working with SquashFS images

Age	Commit message (Collapse)	Author
2023-06-11	libio: move istream buffer logic into interall callbacks	David Oberhollenzer
	Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-11	libio: remove precache from istream_advance_buffer	David Oberhollenzer
	Since the user has to call istream_get_buffered_data afterwards anyway, we can do the precache lazily. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-10	libio: add desired read size to istream_get_buffered_data	David Oberhollenzer
	This properly maps to all of our use cases and makes istream_precache obsolete. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-09	libtar: overhaul buffer management in istream_t wrapper	David Oberhollenzer
	As soon as we no longer have any data to read, unlock/drop the parent iterator_t object. Also, make sure we get the buffer count right, not all data might have been consumed yet when precache is called. Remove the precache/read loop in the non-sparse case, we have already established that there is data available. If it is insufficient, the user will simply call precache again once it's used up, which istream_get_buffered_data forwards to a precache call in the underlying stream. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-09	libio: remove eof flag from istream_t interface	David Oberhollenzer
	Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-09	libio: eliminate direct access of the interal buffer	David Oberhollenzer
	Instead, go through helper functions, which in a next step can be moved inside the implementation. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-08	Move tar compressor auto wrapping code from tar2sqfs into libtar	David Oberhollenzer
	Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-05	Move dir_entry_xattr_t from libio to libsquashfs	David Oberhollenzer
	The structure and functions are renamed to sqfs_xattr_* instead, an additional helper is added to accept an encoded xattr. Documentation and unit test are added as well. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-05	libio: remove buffer_offset from istream_t	David Oberhollenzer
	Instead, make the buffer const, let the user adjust the pointer and size. The offset can then be inferred in precache. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-04	libio: Move istream_t precache logic into backend implementation	David Oberhollenzer
	The end goal is to remove direct buffer access from the istream_t interfaces and make that opaque. For the tar implementation, this already safes us needless buffer copying, as we essentially allow the user to read-through from the underlying stream. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-06-01	libio: split dir_entry_t from dir_iterator_t, add create helper	David Oberhollenzer
	Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-05-22	libtar: add a dir_iterator_t implementation for tar files	David 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>
2023-05-16	libtar: replace tar_xattr_t with dir_entry_xattr_t struct	David Oberhollenzer
	Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-02-21	libtar: generate entire xattr header in a single buffer	David 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>
2023-02-20	Remove ostream_printf	David 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>
2023-02-08	libtar: remove need for skip_padding function	David 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>
2023-02-08	libtar: Add an istream_t implementation	David 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>
2023-02-04	libtar: internalize the declaration of read_octal	David Oberhollenzer
	Use read_number in the places that remain. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-02-04	libtar: simplfy parsing of old GNU sparse format	David 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>
2023-02-04	libtar: some minor cleanups	David 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>
2023-01-31	Move library source into src sub-directory	David Oberhollenzer
	Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>