A new set of tools and libraries for working with SquashFS images https://git.infraroot.at/squashfs-tools-ng.git/atom?h=master 2022-07-08T17:17:35+00:00 2022-07-08T17:17:35+00:00 David Oberhollenzer david.oberhollenzer@sigma-star.at 2022-06-26T20:51:27+00:00 urn:sha1:359d71e90050a8b83f7bc7d2ecd4ff29c477cc22 Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at> 2021-06-25T13:12:41+00:00 David Oberhollenzer david.oberhollenzer@sigma-star.at 2021-06-24T12:32:38+00:00 urn:sha1:64da743ffc2a7d182a78872798b5dbdca39a1b16 The differen compressor libraries use differnt integer types to tally the buffer sizes. The libfstream library uses size_t, which may be bigger than the actualy types, potentially causing an overflow if trying to compress to much at once. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at> 2021-06-04T10:16:55+00:00 David Oberhollenzer david.oberhollenzer@sigma-star.at 2021-06-04T10:16:55+00:00 urn:sha1:abcdc94c9939d6b085e2b76f76817df9be5fe2cc This is a followup to dd4e6ead142e58568aec89d76b0b2e867ee983f2. Basically the same problem occours with Bzip2, but it so far it wasn't possible to find a sampel that reproduces it. Unlike libxz, the libbz2 API does not support concatenated streams by itself and will choke when trying to decompress after the stream end, so this commit adds a workaround to simply initialize the decompressor on-the-fly and tear it down again when and end-of-stream is returned. The end-of-file condition is only set when there actually is no more data to read. Otherwise, the decompressor will be re-initialized in the next round. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at> 2021-05-06T11:27:46+00:00 David Oberhollenzer david.oberhollenzer@sigma-star.at 2021-05-06T11:10:54+00:00 urn:sha1:dd4e6ead142e58568aec89d76b0b2e867ee983f2 Some xz compressed tarballs (e.g. from kernel.org) are not made up of a single xz stream, but rather contain several, independendly compressed streams. In that case, the xz decompressor hits an LZMA_STREAM_END early on and reports EOF. If you are lucky, the tar reader bails (premature end-of-file). If you are unlucky, it happens exactely between two records and is interpeted as regular end-of-file. As this seems to be a normal use case for xz, it has a flag to just read across the seams and only report end-of-stream if the action is set to finish. This commit adds the flag to the initialization propperly sets the lzma_action depending on whether the underlying stream hit EOF or not. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at> 2020-09-17T11:10:25+00:00 David Oberhollenzer david.oberhollenzer@sigma-star.at 2020-09-17T11:09:06+00:00 urn:sha1:b52a9567520570bd6c850bcad3a6966f68639ef7 Streaming compression was added fairly recently to zstd (and then the API was changed a few times). Rather than rely on libzstd versioning macros, this commit adds an m4 script to test at configure time if the enums/functions we need are available by trying to compile a small sample. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at> 2020-09-16T07:34:35+00:00 David Oberhollenzer david.oberhollenzer@sigma-star.at 2020-09-15T19:13:56+00:00 urn:sha1:183cf393a453cddb689666ce7fb35a97e7f523bf Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at> 2020-09-16T07:34:35+00:00 David Oberhollenzer david.oberhollenzer@sigma-star.at 2020-09-14T18:25:10+00:00 urn:sha1:15431d4fd8de67a03af4ee9cc8e774e1750e9da2 Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at> 2020-09-16T07:34:35+00:00 David Oberhollenzer david.oberhollenzer@sigma-star.at 2020-09-14T12:59:31+00:00 urn:sha1:c9f5cfd3df2706da940a39d6d816ad084ba80fbd Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>