avformat/concat: Check protocol prefix

Reviewed-by: Andreas Cadhalpun <andreas.cadhalpun@googlemail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2016-01-20 11:10:27 +01:00
parent 9a8034b8bc
commit 8e32d01432

View File

@ -65,7 +65,10 @@ static av_cold int concat_open(URLContext *h, const char *uri, int flags)
struct concat_data *data = h->priv_data;
struct concat_nodes *nodes;
av_strstart(uri, "concat:", &uri);
if (!av_strstart(uri, "concat:", &uri)) {
av_log(h, AV_LOG_ERROR, "URL %s lacks prefix\n", uri);
return AVERROR(EINVAL);
}
for (i = 0, len = 1; uri[i]; i++) {
if (uri[i] == *AV_CAT_SEPARATOR) {