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Fix decoding of Extra Records that have empty Data.

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This commit is contained in:
Lasse Collin 2008-01-23 23:35:49 +02:00
parent e5fdec93e2
commit 3a7cc5c3de
1 changed files with 12 additions and 1 deletions
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11
src/liblzma/common/metadata_decoder.c
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@ -356,7 +356,18 @@ process(lzma_coder *coder, lzma_allocator *allocator)
case SEQ_EXTRA_SIZE: case SEQ_EXTRA_SIZE:
case SEQ_EXTRA_DUMMY_SIZE: case SEQ_EXTRA_DUMMY_SIZE:
read_vli(coder->tmp); read_vli(coder->tmp);
if (coder->tmp == 0) {
// We have no Data in the Extra Record. Don't
// allocate any memory for it. Go back to
// SEQ_EXTRA_ALLOC or SEQ_EXTRA_DUMMY_ALLOC.
coder->tmp = 0;
coder->sequence -= 2;
coder->todo_count = 0;
} else {
++coder->sequence; ++coder->sequence;
}
break; break;
case SEQ_EXTRA_DATA_ALLOC: { case SEQ_EXTRA_DATA_ALLOC: {