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avformat/url: check return value of strchr

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fix ticket: 8687
workflow should return if there have no value of strchr

Signed-off-by: Steven Liu <lq@chinaffmpeg.org>
(cherry picked from commit 029ff31af6801dd2bca1b543575e17eaaa6b0772)
This commit is contained in:
Steven Liu 2020-05-28 10:41:25 +08:00 committed by Marton Balint
parent 569a9d3d70
commit cfec756a6d
1 changed files with 5 additions and 0 deletions
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5
libavformat/url.c
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@ -90,6 +90,8 @@ static void trim_double_dot_url(char *buf, const char *rel, int size)
if (p && (sep = strstr(p, "://"))) {
sep += 3;
root = strchr(sep, '/');
if (!root)
return;
}
/* set new current position if the root node is changed */
@ -150,6 +152,7 @@ void ff_make_absolute_url(char *buf, int size, const char *base,
}
/* If rel actually is an absolute url, just copy it */
if (!base || strstr(rel, "://") || rel[0] == '/') {
memset(buf, 0, size);
trim_double_dot_url(buf, rel, size);
return;
}
@ -177,6 +180,8 @@ void ff_make_absolute_url(char *buf, int size, const char *base,
if (sep) {
sep += 3;
root = strchr(sep, '/');
if (!root)
return;
}
}