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authorWarner Losh <imp@FreeBSD.org>2017-10-12 14:56:28 +0000
committerWarner Losh <imp@FreeBSD.org>2017-10-12 14:56:28 +0000
commit4eb1313ff2ab43011d091b7560cd688c7838e142 (patch)
tree52c1487244ff26dbe95f6afcaac77b591ff84ae4 /lib/libstand/random.c
parent93f4c41f2807d5cbc4050afa47cd72b5ae282a6a (diff)
Notes
Diffstat (limited to 'lib/libstand/random.c')
-rw-r--r--lib/libstand/random.c70
1 files changed, 0 insertions, 70 deletions
diff --git a/lib/libstand/random.c b/lib/libstand/random.c
deleted file mode 100644
index a4b4d50206427..0000000000000
--- a/lib/libstand/random.c
+++ /dev/null
@@ -1,70 +0,0 @@
-/*-
- * Copyright (c) 1992, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * 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.
- *
- * @(#)random.c 8.1 (Berkeley) 6/10/93
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/types.h>
-
-static u_long randseed = 1;
-
-void
-srandom(seed)
- u_long seed;
-{
- randseed = seed;
-}
-
-/*
- * Pseudo-random number generator for randomizing the profiling clock,
- * and whatever else we might use it for. The result is uniform on
- * [0, 2^31 - 1].
- */
-u_long
-random()
-{
- long x, hi, lo, t;
-
- /*
- * Compute x[n + 1] = (7^5 * x[n]) mod (2^31 - 1).
- * From "Random number generators: good ones are hard to find",
- * Park and Miller, Communications of the ACM, vol. 31, no. 10,
- * October 1988, p. 1195.
- */
- x = randseed;
- hi = x / 127773;
- lo = x % 127773;
- t = 16807 * lo - 2836 * hi;
- if (t <= 0)
- t += 0x7fffffff;
- randseed = t;
- return (t);
-}