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Importing games/random

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No Minix specific changes needed.

Change-Id: I0fd074325f334f03426accbece4e731b746ebe14
This commit is contained in:
Thomas Cort 2014-03-16 10:52:07 -04:00 committed by Lionel Sambuc
parent 6e7922ee31
commit b098ee9ca6
6 changed files with 231 additions and 1 deletions
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2
distrib/sets/lists/minix/mi
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@ -566,6 +566,7 @@
./usr/games/pig minix-sys
./usr/games/ppt minix-sys
./usr/games/primes minix-sys
./usr/games/random minix-sys
./usr/games/strfile minix-sys
./usr/games/unstr minix-sys
./usr/games/wargames minix-sys
@ -4766,6 +4767,7 @@
./usr/man/man6/pig.6 minix-sys
./usr/man/man6/ppt.6 minix-sys
./usr/man/man6/primes.6 minix-sys
./usr/man/man6/random.6 minix-sys
./usr/man/man6/wargames.6 minix-sys
./usr/man/man7 minix-sys
./usr/man/man7/ascii.7 minix-sys

2
games/Makefile
View file

@ -13,7 +13,7 @@ SUBDIR= adventure \
factor fortune \
monop morse number \
pig ppt primes \
\
random \
wargames
.if !defined(__MINIX)

7
games/random/Makefile Normal file
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@ -0,0 +1,7 @@
# $NetBSD: Makefile,v 1.5 2008/01/28 07:03:59 dholland Exp $
# @(#)Makefile 8.1 (Berkeley) 3/31/94
PROG= random
MAN= random.6
.include <bsd.prog.mk>

68
games/random/random.6 Normal file
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@ -0,0 +1,68 @@
.\" $NetBSD: random.6,v 1.7 2007/03/20 16:12:40 hubertf Exp $
.\"
.\" Copyright (c) 1994
.\" 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.6 8.2 (Berkeley) 3/31/94
.\"
.Dd March 20, 2007
.Dt RANDOM 6
.Os
.Sh NAME
.Nm random
.Nd random lines from a file or random numbers
.Sh SYNOPSIS
.Nm
.Op Fl er
.Op Ar denominator
.Sh DESCRIPTION
.Nm
reads lines from the standard input and copies them to the standard
output with a probability of 1/denominator.
The default value for
.Ar denominator
is 2.
.Pp
The options are as follows:
.Bl -tag -width Ds
.It Fl e
If the
.Fl e
option is specified,
.Nm
does not read or write anything, and simply exits with a random
exit value of 0 to
.Ar denominator Ns -1 ,
inclusive.
.It Fl r
The
.Fl r
option guarantees that the output is unbuffered.
.El
.Sh SEE ALSO
.Xr shuffle 1 ,
.Xr fortune 6

152
games/random/random.c Normal file
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@ -0,0 +1,152 @@
/* $NetBSD: random.c,v 1.14 2009/08/12 08:27:24 dholland Exp $ */
/*
* Copyright (c) 1994
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Guy Harris at Network Appliance Corp.
*
* 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.
*/
#include <sys/cdefs.h>
#ifndef lint
__COPYRIGHT("@(#) Copyright (c) 1994\
The Regents of the University of California. All rights reserved.");
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)random.c 8.6 (Berkeley) 6/1/94";
#else
__RCSID("$NetBSD: random.c,v 1.14 2009/08/12 08:27:24 dholland Exp $");
#endif
#endif /* not lint */
#include <sys/types.h>
#include <sys/time.h>
#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>
#include <limits.h>
static void usage(void) __dead;
int
main(int argc, char *argv[])
{
struct timeval tp;
double denom;
int ch, random_exit, selected, unbuffer_output;
char *ep;
denom = 0;
random_exit = unbuffer_output = 0;
while ((ch = getopt(argc, argv, "er")) != -1)
switch (ch) {
case 'e':
random_exit = 1;
break;
case 'r':
unbuffer_output = 1;
break;
default:
case '?':
usage();
/* NOTREACHED */
}
argc -= optind;
argv += optind;
switch (argc) {
case 0:
denom = 2;
break;
case 1:
errno = 0;
denom = strtod(*argv, &ep);
if (errno == ERANGE)
err(1, "%s", *argv);
if (denom == 0 || *ep != '\0')
errx(1, "denominator is not valid.");
break;
default:
usage();
/* NOTREACHED */
}
(void)gettimeofday(&tp, NULL);
srandom((unsigned long)tp.tv_usec + tp.tv_sec + getpid());
/* Compute a random exit status between 0 and denom - 1. */
if (random_exit)
return ((denom * random()) / RANDOM_MAX);
/*
* Act as a filter, randomly choosing lines of the standard input
* to write to the standard output.
*/
if (unbuffer_output)
setbuf(stdout, NULL);
/*
* Select whether to print the first line. (Prime the pump.)
* We find a random number between 0 and denom - 1 and, if it's
* 0 (which has a 1 / denom chance of being true), we select the
* line.
*/
selected = (int)(denom * random() / RANDOM_MAX) == 0;
while ((ch = getchar()) != EOF) {
if (selected)
(void)putchar(ch);
if (ch == '\n') {
/* End of that line. See if we got an error. */
if (ferror(stdout))
err(2, "stdout");
/* Now see if the next line is to be printed. */
selected = (int)(denom * random() / RANDOM_MAX) == 0;
}
}
if (ferror(stdin))
err(2, "stdin");
exit (0);
return 0;
}
static void
usage(void)
{
(void)fprintf(stderr, "usage: random [-er] [denominator]\n");
exit(1);
}

1
releasetools/nbsd_ports
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@ -80,6 +80,7 @@
2013/12/1 12:00:00,games/pig
2013/12/1 12:00:00,games/ppt
2013/12/1 12:00:00,games/primes
2013/12/1 12:00:00,games/random
2013/12/1 12:00:00,games/wargames
2013/12/1 12:00:00,gnu/dist/texinfo
2013/12/1 12:00:00,gnu/usr.bin/texinfo