[FFmpeg-cvslog] ffm_write_write_index: check lseek() return code

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Wed Oct 17 20:23:16 2012 +0200| [378a5b9c5f1a8b51dee3b954713d18f330fbb027] | committer: Michael Niedermayer

ffm_write_write_index: check lseek() return code

Fixes CID732185
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=378a5b9c5f1a8b51dee3b954713d18f330fbb027
---

 ffserver.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/ffserver.c b/ffserver.c
index f98ee82..bab40a3 100644
--- a/ffserver.c
+++ b/ffserver.c
@@ -346,7 +346,8 @@ static int ffm_write_write_index(int fd, int64_t pos)
 
     for(i=0;i<8;i++)
         buf[i] = (pos >> (56 - i * 8)) & 0xff;
-    lseek(fd, 8, SEEK_SET);
+    if (lseek(fd, 8, SEEK_SET) < 0)
+        return AVERROR(EIO);
     if (write(fd, buf, 8) != 8)
         return AVERROR(EIO);
     return 8;