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Fix data corruption in LZMA encoder. Note that this bug was

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specific to liblzma and was *not* present in LZMA SDK.
This commit is contained in:
Lasse Collin 2008-03-14 23:16:11 +02:00
parent 7d516f5129
commit e6eb0a2675
1 changed files with 4 additions and 0 deletions
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4
src/liblzma/lzma/lzma_encoder.c
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@ -157,6 +157,10 @@ lzma_lzma_encode(lzma_coder *coder, uint8_t *restrict out,
// Initialize the stream if no data has been encoded yet. // Initialize the stream if no data has been encoded yet.
if (!coder->is_initialized) { if (!coder->is_initialized) {
if (coder->lz.read_pos == coder->lz.read_limit) { if (coder->lz.read_pos == coder->lz.read_limit) {
if (coder->lz.sequence == SEQ_RUN)
return false; // We cannot do anything.
// We are finishing (we cannot get here when flushing).
assert(coder->lz.write_pos == coder->lz.read_pos); assert(coder->lz.write_pos == coder->lz.read_pos);
assert(coder->lz.sequence == SEQ_FINISH); assert(coder->lz.sequence == SEQ_FINISH);
} else { } else {