[FFmpeg-cvslog] rtsp: Check for command strings without spaces

[Luca Barbato]

ffmpeg | branch: master | Luca Barbato <lu_zero at gentoo.org> | Thu Oct  9 20:13:54 2014 +0200| [c27328e749ff3be648411765cd17362fee017341] | committer: Luca Barbato

rtsp: Check for command strings without spaces

Prevent a NULL-pointer dereference.

CC: libav-stable at libav.org

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=c27328e749ff3be648411765cd17362fee017341
---

 libavformat/rtspdec.c |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libavformat/rtspdec.c b/libavformat/rtspdec.c
index a14ec57..5442b7d 100644
--- a/libavformat/rtspdec.c
+++ b/libavformat/rtspdec.c
@@ -360,6 +360,10 @@ static inline int parse_command_line(AVFormatContext *s, const char *line,
     RTSPState *rt = s->priv_data;
     const char *linept, *searchlinept;
     linept = strchr(line, ' ');
+
+    if (!linept)
+        return AVERROR_INVALIDDATA;
+
     if (linept - line > methodsize - 1) {
         av_log(s, AV_LOG_ERROR, "Method string too long\n");
         return AVERROR(EIO);