minix/usr.bin/mkfifo/mkfifo.c

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/* $NetBSD: mkfifo.c,v 1.13 2011/09/04 20:30:34 joerg Exp $ */
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/*
* Copyright (c) 1990, 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.
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*/
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#include <sys/cdefs.h>
#ifndef lint
__COPYRIGHT("@(#) Copyright (c) 1990, 1993\
The Regents of the University of California. All rights reserved.");
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)mkfifo.c 8.2 (Berkeley) 1/5/94";
#endif
__RCSID("$NetBSD: mkfifo.c,v 1.13 2011/09/04 20:30:34 joerg Exp $");
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#endif /* not lint */
#include <stdio.h>
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#include <stdlib.h>
#include <string.h>
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#include <locale.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
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#include <unistd.h>
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#include <err.h>
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__dead static void usage(void);
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int
main(int argc, char *argv[])
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{
int ch, exitval;
void *set;
mode_t mode;
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setlocale (LC_ALL, "");
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/* The default mode is the value of the bitwise inclusive or of
S_IRUSR, S_IWUSR, S_IRGRP, S_IWGRP, S_IROTH, and S_IWOTH
modified by the file creation mask */
mode = 0666 & ~umask(0);
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while ((ch = getopt(argc, argv, "m:")) != -1)
switch(ch) {
case 'm':
if (!(set = setmode(optarg))) {
err(1, "Cannot set file mode `%s'", optarg);
/* NOTREACHED */
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}
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/* In symbolic mode strings, the + and - operators are
interpreted relative to an assumed initial mode of
a=rw. */
mode = getmode(set, 0666);
free(set);
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break;
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case '?':
default:
usage();
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}
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argc -= optind;
argv += optind;
if (argv[0] == NULL)
usage();
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for (exitval = 0; *argv; ++argv) {
if (mkfifo(*argv, mode) < 0) {
warn("%s", *argv);
exitval = 1;
}
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}
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exit(exitval);
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}
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static void
usage(void)
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{
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(void)fprintf(stderr, "usage: mkfifo [-m mode] fifoname ...\n");
exit(1);
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}