mirror of https://git.tukaani.org/xz.git
xz: Fix --single-stream with an empty .xz Stream.
Example: $ xz -dc --single-stream good-0-empty.xz xz: good-0-empty.xz: Internal error (bug) The code, that is tries to catch some input file issues early, didn't anticipate LZMA_STREAM_END which is possible in that code only when --single-stream is used.
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@ -626,6 +626,15 @@ coder_init(file_pair *pair)
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== LZMA_UNSUPPORTED_CHECK)
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message_warning("%s: %s", pair->src_name,
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message_strm(ret));
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// With --single-stream lzma_code won't wait for
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// LZMA_FINISH and thus it can return LZMA_STREAM_END
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// if the file has no uncompressed data inside.
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// So treat LZMA_STREAM_END as LZMA_OK here.
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// When lzma_code() is called again in coder_normal()
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// it will return LZMA_STREAM_END again.
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if (ret == LZMA_STREAM_END)
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ret = LZMA_OK;
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}
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#endif
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}
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