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random_seed: simplify

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Originally committed as revision 23932 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Måns Rullgård 2010-07-01 11:43:30 +00:00
parent 9958096ea2
commit 16bfbfd078
1 changed files with 3 additions and 5 deletions
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8
libavutil/random_seed.c
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@ -40,12 +40,10 @@ static int read_random(uint32_t *dst, const char *file)
uint32_t av_get_random_seed(void) uint32_t av_get_random_seed(void)
{ {
uint32_t seed; uint32_t seed;
int err;
err = read_random(&seed, "/dev/urandom"); if (read_random(&seed, "/dev/urandom") == sizeof(seed))
if (err != sizeof(seed)) return seed;
err = read_random(&seed, "/dev/random"); if (read_random(&seed, "/dev/random") == sizeof(seed))
if (err == sizeof(seed))
return seed; return seed;
#ifdef AV_READ_TIME #ifdef AV_READ_TIME