squashfs-tools-ng.git/lib/sqfs/comp, branch v0.8

Add a small version of zlib that can be built in statically

2019-12-29T19:36:19+00:00

Signed-off-by: David Oberhollenzer

Add a small version of liblz4 that can be built in statically

2019-12-28T15:15:35+00:00

Signed-off-by: David Oberhollenzer

Fix "buffer to small" being treated as error in zstd compressor

2019-12-12T09:40:01+00:00

The zstd compress function returns an error code if it cannot fit the compressed data into the given destination buffer. This commit adds a check for this error and reports that the libsquashfs compressor implementation was unable to shrink the input instead of claiming a fatal error happened. Signed-off-by: David Oberhollenzer

Cleanup: Return combined return value from compressor id by name

2019-11-28T15:11:22+00:00

Instead of returning the ID through a pointer and an error code as return status, return a single int that could be a compressor ID (positive values) or an error code (negative values). Signed-off-by: David Oberhollenzer

Cleanup: move overflow safe alloc code into libsquashfs

2019-11-25T12:20:08+00:00

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

Cleanup libsquashfs invalid argument error codes

2019-11-24T15:47:49+00:00

- Add an explicit "you're holding it wrong" error code. - Consistently return error codes and not have some special places where -1 is returned. Signed-off-by: David Oberhollenzer

Fix: Move LZO compressor from libsquashfs to libcommon

2019-11-24T00:03:10+00:00

The liblzo2 library is licensed under GPLv2, so it is not possible to distribute binaries of libsquashfs that link against liblzo2 under LGPL. This commit moves the LZO compressor implementation to libcommon, where this isn't a problem, since the tools themselves are licensed under GPLv3. It removes the ability of libsquashfs to read or generate LZO compressed SquashFS images, but the tools still can. Signed-off-by: David Oberhollenzer

Cleanup: move libutil related headers to "util" sub directory

2019-10-07T13:34:22+00:00

Signed-off-by: David Oberhollenzer

Improve ABI backward & forward compatibillity

2019-10-07T10:22:05+00:00

- Padd the compressor config union - 128 bytes aught to be enough for everyone, i.e. future compressors. - Insist that the padding space is initialized to 0. If a field gets added to an existing compressor, it can test for 0 as a sentinel value. - Add a size field to the hook structure, aka "the Microsoft way". - The explanation is in the comment. - Don't make the Microsoft mistake of checking for >=, insist on *exact* size match. Future users will need a fallback if their hooks are rejected. But at least they will be rejected instead of silently not being used. - Add an unsupported flag check to the dir tree reader. - Add a basic abi unit test that, for now, checks the size of the compressor config struct fields. Signed-off-by: David Oberhollenzer

Cleanup: rename "compress.h" to "compressor.h"

2019-09-29T12:13:37+00:00

Signed-off-by: David Oberhollenzer