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authorDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2021-05-06 13:10:54 +0200
committerDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2021-05-06 13:27:46 +0200
commitdd4e6ead142e58568aec89d76b0b2e867ee983f2 (patch)
treedbf3fcceea6b492689132ea7a63b704e7532419f /COPYING.md
parentf92d3354df3c0bb930b103a58d905a77a7281a26 (diff)
Fix: allow concatenated xz streams
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>
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