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authorderaadt <>2014-07-17 23:12:28 +0000
committerderaadt <>2014-07-17 23:12:28 +0000
commit60721d2b6012c2aa79de24c38ab93b24f8a8d6ab (patch)
treee395c5624f00a2ed2df1dc7f18d3b8d48e25dfa1 /src/lib/libc
parentabc31963b47bed637894a360dd9ea17999dcd644 (diff)
downloadopenbsd-60721d2b6012c2aa79de24c38ab93b24f8a8d6ab.tar.gz
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it is 2014, and we still need to encourage people away from srand()
and random(). Sigh.
Diffstat (limited to 'src/lib/libc')
-rw-r--r--src/lib/libc/stdlib/rand.39
-rw-r--r--src/lib/libc/stdlib/random.310
2 files changed, 14 insertions, 5 deletions
diff --git a/src/lib/libc/stdlib/rand.3 b/src/lib/libc/stdlib/rand.3
index 75395976f8..be5481bb93 100644
--- a/src/lib/libc/stdlib/rand.3
+++ b/src/lib/libc/stdlib/rand.3
@@ -29,9 +29,9 @@
29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30.\" SUCH DAMAGE. 30.\" SUCH DAMAGE.
31.\" 31.\"
32.\" $OpenBSD: rand.3,v 1.15 2014/04/07 17:57:56 schwarze Exp $ 32.\" $OpenBSD: rand.3,v 1.16 2014/07/17 23:12:28 deraadt Exp $
33.\" 33.\"
34.Dd $Mdocdate: April 7 2014 $ 34.Dd $Mdocdate: July 17 2014 $
35.Dt RAND 3 35.Dt RAND 3
36.Os 36.Os
37.Sh NAME 37.Sh NAME
@@ -50,7 +50,10 @@
50.Sh DESCRIPTION 50.Sh DESCRIPTION
51.Bf -symbolic 51.Bf -symbolic
52These interfaces are obsoleted by 52These interfaces are obsoleted by
53.Xr random 3 . 53.Xr random 3 ,
54which is also unsafe.
55Consider using
56.Xr arc4random 3 .
54.Ef 57.Ef
55.Pp 58.Pp
56The 59The
diff --git a/src/lib/libc/stdlib/random.3 b/src/lib/libc/stdlib/random.3
index 2bac41796e..1223745cb4 100644
--- a/src/lib/libc/stdlib/random.3
+++ b/src/lib/libc/stdlib/random.3
@@ -25,9 +25,9 @@
25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26.\" SUCH DAMAGE. 26.\" SUCH DAMAGE.
27.\" 27.\"
28.\" $OpenBSD: random.3,v 1.23 2014/07/13 14:25:00 tedu Exp $ 28.\" $OpenBSD: random.3,v 1.24 2014/07/17 23:12:28 deraadt Exp $
29.\" 29.\"
30.Dd $Mdocdate: July 13 2014 $ 30.Dd $Mdocdate: July 17 2014 $
31.Dt RANDOM 3 31.Dt RANDOM 3
32.Os 32.Os
33.Sh NAME 33.Sh NAME
@@ -50,6 +50,12 @@
50.Ft char * 50.Ft char *
51.Fn setstate "char *state" 51.Fn setstate "char *state"
52.Sh DESCRIPTION 52.Sh DESCRIPTION
53.Bf -symbolic
54This interface is not cryptographically secure, so consider using
55.Xr arc4random 3
56instead.
57.Ef
58.Pp
53The 59The
54.Fn random 60.Fn random
55function uses a non-linear additive feedback random number generator employing 61function uses a non-linear additive feedback random number generator employing