diff options
Diffstat (limited to 'lib/libc/gen/arc4random.3')
| -rw-r--r-- | lib/libc/gen/arc4random.3 | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/lib/libc/gen/arc4random.3 b/lib/libc/gen/arc4random.3 index 27c6fd1..5af38ce 100644 --- a/lib/libc/gen/arc4random.3 +++ b/lib/libc/gen/arc4random.3 @@ -35,6 +35,7 @@ .Os .Sh NAME .Nm arc4random , +.Nm arc4random_buf , .Nm arc4random_stir , .Nm arc4random_addrandom .Nd arc4 random number generator @@ -45,6 +46,8 @@ .Ft u_int32_t .Fn arc4random "void" .Ft void +.Fn arc4random_buf "void *buf" "size_t nbytes" +.Ft void .Fn arc4random_stir "void" .Ft void .Fn arc4random_addrandom "unsigned char *dat" "int datlen" @@ -68,6 +71,13 @@ and therefore has twice the range of and .Xr random 3 . .Pp +.Fn arc4random_buf +function fills the region +.Fa buf +of length +.Fa nbytes +with ARC4-derived random data. +.Pp The .Fn arc4random_stir function reads data from @@ -78,10 +88,9 @@ and uses it to permute the S-Boxes via There is no need to call .Fn arc4random_stir before using -.Fn arc4random , -since .Fn arc4random -automatically initializes itself. +functions family, since +they automatically initialize themselves. .Sh EXAMPLES The following produces a drop-in replacement for the traditional .Fn rand |
