On Sun, Dec 6, 2015 at 10:56 PM, Ganesh Ajjanagadde <gajjanaga...@gmail.com> wrote: > arc4random() was designed as a superior interface for system random > number generation, designed for OpenBSD. It is thus an improvement to > use it whenever available. > > As a side note, this may or may not get included in glibc, and there is > a proposal to create a posix_random family based on these ideas: > http://austingroupbugs.net/view.php?id=859. > > Untested as I lack OpenBSD. > > Signed-off-by: Ganesh Ajjanagadde <gajjanaga...@gmail.com> > --- > configure | 2 ++ > libavutil/random_seed.c | 4 ++++ > 2 files changed, 6 insertions(+) > > diff --git a/configure b/configure > index 7530c88..e676269 100755 > --- a/configure > +++ b/configure > @@ -1840,6 +1840,7 @@ MATH_FUNCS=" > SYSTEM_FUNCS=" > access > aligned_malloc > + arc4random > clock_gettime > closesocket > CommandLineToArgvW > @@ -5218,6 +5219,7 @@ check_func ${malloc_prefix}memalign && > enable memalign > check_func ${malloc_prefix}posix_memalign && enable posix_memalign > > check_func access > +check_func arc4random > check_func_headers time.h clock_gettime || { check_func_headers time.h > clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; } > check_func fcntl > check_func fork > diff --git a/libavutil/random_seed.c b/libavutil/random_seed.c > index 8aa8c38..205a636 100644 > --- a/libavutil/random_seed.c > +++ b/libavutil/random_seed.c > @@ -121,6 +121,10 @@ uint32_t av_get_random_seed(void) > } > #endif > > +#if HAVE_ARC4RANDOM > + return arc4random(); > +#endif > + > if (read_random(&seed, "/dev/urandom") == sizeof(seed)) > return seed; > if (read_random(&seed, "/dev/random") == sizeof(seed)) > -- > 2.6.3 >
any objections to this: all objections so far have been for 2/2, i.e for the more controversial one that harnesses libbsd for non-native functionality? _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
