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avformat/concat: Check protocol prefix 

Reviewed-by: Andreas Cadhalpun <andreas.cadhalpun@googlemail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 8e32d01432)

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2016-01-20 11:10:27 +01:00
parent 4f52c0a619
commit 53f5efcae1
1 changed files with 4 additions and 1 deletions
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5
libavformat/concat.c
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@ -64,7 +64,10 @@ 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)