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Fixed bug #78902 #5014

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Fixed bug #78902 #5014

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8 changes: 8 additions & 0 deletions main/streams/streams.c
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Original file line number Diff line number Diff line change
Expand Up @@ -588,6 +588,14 @@ PHPAPI int _php_stream_fill_read_buffer(php_stream *stream, size_t size)
* stream read buffer */
while (brig_inp->head) {
bucket = brig_inp->head;
/* reduce buffer memory consumption if possible, to avoid a realloc */
if (stream->readbuf && stream->readbuflen - stream->writepos < bucket->buflen) {
if (stream->writepos > stream->readpos) {
memmove(stream->readbuf, stream->readbuf + stream->readpos, stream->writepos - stream->readpos);
}
stream->writepos -= stream->readpos;
stream->readpos = 0;
}
/* grow buffer to hold this bucket
* TODO: this can fail for persistent streams */
if (stream->readbuflen - stream->writepos < bucket->buflen) {
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