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Fix internal buffer reset

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PiperOrigin-RevId: 524301253
This commit is contained in:
Evgenii Kliuchnikov 2023-04-14 15:46:39 +00:00 committed by Evgenii Kliuchnikov
parent c0a43495ea
commit e1f5788fb0
1 changed files with 5 additions and 0 deletions
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5
c/dec/decode.c
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@ -116,6 +116,10 @@ static BROTLI_NOINLINE BrotliDecoderResult SaveErrorCode(
BrotliDecoderState* s, BrotliDecoderErrorCode e, size_t consumed_input) { BrotliDecoderState* s, BrotliDecoderErrorCode e, size_t consumed_input) {
s->error_code = (int)e; s->error_code = (int)e;
s->used_input += consumed_input; s->used_input += consumed_input;
if ((s->buffer_length != 0) && (s->br.next_in == s->br.last_in)) {
/* If internal buffer is depleted at last, reset it. */
s->buffer_length = 0;
}
switch (e) { switch (e) {
case BROTLI_DECODER_SUCCESS: case BROTLI_DECODER_SUCCESS:
return BROTLI_DECODER_RESULT_SUCCESS; return BROTLI_DECODER_RESULT_SUCCESS;
@ -2351,6 +2355,7 @@ BrotliDecoderResult BrotliDecoderDecompressStream(
/* Not enough data in buffer, but can take one more byte from /* Not enough data in buffer, but can take one more byte from
input stream. */ input stream. */
result = BROTLI_DECODER_SUCCESS; result = BROTLI_DECODER_SUCCESS;
BROTLI_DCHECK(s->buffer_length < 8);
s->buffer.u8[s->buffer_length] = **next_in; s->buffer.u8[s->buffer_length] = **next_in;
s->buffer_length++; s->buffer_length++;
BrotliBitReaderSetInput(br, &s->buffer.u8[0], s->buffer_length); BrotliBitReaderSetInput(br, &s->buffer.u8[0], s->buffer_length);