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diff --git a/src/lib/libc/stdlib/rand.3 b/src/lib/libc/stdlib/rand.3
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+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the American National Standards Committee X3, on Information
+.\" Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     $OpenBSD: rand.3,v 1.11 2012/06/02 00:14:16 guenther Exp $
+.\"
+.Dd $Mdocdate: June 2 2012 $
+.Dt RAND 3
+.Os
+.Sh NAME
+.Nm rand ,
+.Nm srand
+.Nd bad random number generator
+.Sh SYNOPSIS
+.Fd #include <stdlib.h>
+.Ft void
+.Fn srand "unsigned int seed"
+.Ft int
+.Fn rand void
+.Ft int
+.Fn rand_r "unsigned int *seed"
+.Sh DESCRIPTION
+.Bf -symbolic
+These interfaces are obsoleted by
+.Xr random 3 .
+.Ef
+.Pp
+The
+.Fn rand
+function computes a sequence of pseudo-random integers in the range
+of 0 to
+.Dv RAND_MAX
+(as defined by the header file
+.Aq Pa stdlib.h ) .
+.Pp
+The
+.Fn srand
+function sets its argument as the seed for a new sequence of
+pseudo-random numbers to be returned by
+.Fn rand .
+These sequences are repeatable by calling
+.Fn srand
+with the same seed value.
+.Pp
+If no seed value is provided, the functions are automatically
+seeded with a value of 1.
+.Pp
+The
+.Fn rand_r
+is a thread-safe version of
+.Fn rand .
+Storage for the seed must be provided through the
+.Fa seed
+argument, and needs to have been initialized by the caller.
+.Sh SEE ALSO
+.Xr arc4random 3 ,
+.Xr rand48 3 ,
+.Xr random 3
+.Sh STANDARDS
+The
+.Fn rand
+and
+.Fn srand
+functions conform to
+.St -ansiC .
+.Pp
+The
+.Fn rand_r
+function conforms to
+.St -p1003.1-2008 .

diff --git a/src/lib/libc/stdlib/rand.3 b/src/lib/libc/stdlib/rand.3 new file mode 100644 index 0000000000..50fe67d109 --- /dev/null +++ b/src/lib/libc/stdlib/rand.3
@@ -0,0 +1,97 @@
	1	.\" Copyright (c) 1990, 1991 The Regents of the University of California.
	2	.\" All rights reserved.
	3	.\"
	4	.\" This code is derived from software contributed to Berkeley by
	5	.\" the American National Standards Committee X3, on Information
	6	.\" Processing Systems.
	7	.\"
	8	.\" Redistribution and use in source and binary forms, with or without
	9	.\" modification, are permitted provided that the following conditions
	10	.\" are met:
	11	.\" 1. Redistributions of source code must retain the above copyright
	12	.\" notice, this list of conditions and the following disclaimer.
	13	.\" 2. Redistributions in binary form must reproduce the above copyright
	14	.\" notice, this list of conditions and the following disclaimer in the
	15	.\" documentation and/or other materials provided with the distribution.
	16	.\" 3. Neither the name of the University nor the names of its contributors
	17	.\" may be used to endorse or promote products derived from this software
	18	.\" without specific prior written permission.
	19	.\"
	20	.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	21	.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	22	.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	23	.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	24	.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	25	.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	26	.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	27	.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	28	.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	29	.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	30	.\" SUCH DAMAGE.
	31	.\"
	32	.\" $OpenBSD: rand.3,v 1.11 2012/06/02 00:14:16 guenther Exp $
	33	.\"
	34	.Dd $Mdocdate: June 2 2012 $
	35	.Dt RAND 3
	36	.Os
	37	.Sh NAME
	38	.Nm rand ,
	39	.Nm srand
	40	.Nd bad random number generator
	41	.Sh SYNOPSIS
	42	.Fd #include <stdlib.h>
	43	.Ft void
	44	.Fn srand "unsigned int seed"
	45	.Ft int
	46	.Fn rand void
	47	.Ft int
	48	.Fn rand_r "unsigned int *seed"
	49	.Sh DESCRIPTION
	50	.Bf -symbolic
	51	These interfaces are obsoleted by
	52	.Xr random 3 .
	53	.Ef
	54	.Pp
	55	The
	56	.Fn rand
	57	function computes a sequence of pseudo-random integers in the range
	58	of 0 to
	59	.Dv RAND_MAX
	60	(as defined by the header file
	61	.Aq Pa stdlib.h ) .
	62	.Pp
	63	The
	64	.Fn srand
	65	function sets its argument as the seed for a new sequence of
	66	pseudo-random numbers to be returned by
	67	.Fn rand .
	68	These sequences are repeatable by calling
	69	.Fn srand
	70	with the same seed value.
	71	.Pp
	72	If no seed value is provided, the functions are automatically
	73	seeded with a value of 1.
	74	.Pp
	75	The
	76	.Fn rand_r
	77	is a thread-safe version of
	78	.Fn rand .
	79	Storage for the seed must be provided through the
	80	.Fa seed
	81	argument, and needs to have been initialized by the caller.
	82	.Sh SEE ALSO
	83	.Xr arc4random 3 ,
	84	.Xr rand48 3 ,
	85	.Xr random 3
	86	.Sh STANDARDS
	87	The
	88	.Fn rand
	89	and
	90	.Fn srand
	91	functions conform to
	92	.St -ansiC .
	93	.Pp
	94	The
	95	.Fn rand_r
	96	function conforms to
	97	.St -p1003.1-2008 .