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# HG changeset patch
# User Christian Holler <choller@mozilla.com>
# Date 1561460220 -7200
# Tue Jun 25 12:57:00 2019 +0200
# Node ID 063a710e0bd70855ed5342ce109d42ea3b1a4abf
# Parent 2388cab0a545d744bd109fa3a7af3b22a3dc4ced
Bug 1561256 - Disable CRC checks in ogg framing for FUZZING. r=drno
diff --git a/media/libogg/src/ogg_framing.c b/media/libogg/src/ogg_framing.c
--- a/media/libogg/src/ogg_framing.c
+++ b/media/libogg/src/ogg_framing.c
@@ -287,34 +287,38 @@ static int _os_lacing_expand(ogg_stream_
}
/* checksum the page */
/* Direct table CRC; note that this will be faster in the future if we
perform the checksum simultaneously with other copies */
void ogg_page_checksum_set(ogg_page *og){
if(og){
+#ifndef FUZZING
ogg_uint32_t crc_reg=0;
int i;
+#endif
/* safety; needed for API behavior, but not framing code */
og->header[22]=0;
og->header[23]=0;
og->header[24]=0;
og->header[25]=0;
+#ifndef FUZZING
for(i=0;i<og->header_len;i++)
crc_reg=(crc_reg<<8)^crc_lookup[((crc_reg >> 24)&0xff)^og->header[i]];
for(i=0;i<og->body_len;i++)
crc_reg=(crc_reg<<8)^crc_lookup[((crc_reg >> 24)&0xff)^og->body[i]];
og->header[22]=(unsigned char)(crc_reg&0xff);
og->header[23]=(unsigned char)((crc_reg>>8)&0xff);
og->header[24]=(unsigned char)((crc_reg>>16)&0xff);
og->header[25]=(unsigned char)((crc_reg>>24)&0xff);
+#endif
}
}
/* submit data to the internal buffer of the framing engine */
int ogg_stream_iovecin(ogg_stream_state *os, ogg_iovec_t *iov, int count,
long e_o_s, ogg_int64_t granulepos){
long bytes = 0, lacing_vals;
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