From 49e92878788e39fff7d103940f512f38b4225068 Mon Sep 17 00:00:00 2001
From: Måns Rullgård <mans@mansr.com>
Date: Thu, 11 Mar 2010 02:32:11 +0000
Subject: random_seed: try other alternatives if reading /dev/random fails

Originally committed as revision 22450 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavutil/random_seed.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'libavutil')

diff --git a/libavutil/random_seed.c b/libavutil/random_seed.c
index 2b2985d446..d3975653a1 100644
--- a/libavutil/random_seed.c
+++ b/libavutil/random_seed.c
@@ -31,8 +31,9 @@ uint32_t ff_random_get_seed(void)
     if ((fd = open("/dev/random", O_RDONLY)) == -1)
         fd = open("/dev/urandom", O_RDONLY);
     if (fd != -1){
-        read(fd, &seed, 4);
+        int err = read(fd, &seed, 4);
         close(fd);
+        if (err == 4)
         return seed;
     }
 #ifdef AV_READ_TIME
-- 
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