On Fri, 24 Jul 2020, Steven Liu wrote:
fix ticket: 8814
if get double dot in the url, check next byte by double dot,
it there have no '/', it is not directory double dot
And what about previous byte? E.g.: http://ffmpeg.org/dummy../dummy
Regards,
Marton
Signed-off-by: Steven Liu <l...@chinaffmpeg.org>
---
libavformat/url.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/libavformat/url.c b/libavformat/url.c
index 20463a6674..92cb4ea116 100644
--- a/libavformat/url.c
+++ b/libavformat/url.c
@@ -97,6 +97,10 @@ static void trim_double_dot_url(char *buf, const char *rel,
int size)
/* set new current position if the root node is changed */
p = root;
while (p && (node = strstr(p, ".."))) {
+ if (node[2] != '/') {
+ av_strlcpy(buf, rel, size);;
+ return;
+ }
av_strlcat(tmp_path, p, node - p + strlen(tmp_path));
p = node + 3;
sep = strrchr(tmp_path, '/');
--
2.25.0
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