1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1990, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32#include <sys/types.h>
33#include <sys/stat.h>
34
35#include <err.h>
36#include <errno.h>
37#include <stdio.h>
38#include <stdlib.h>
39#include <string.h>
40#include <unistd.h>
41
42#define	BASEMODE	S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | \
43			S_IROTH | S_IWOTH
44
45static void usage(void) __dead2;
46
47static int f_mode;
48
49int
50main(int argc, char *argv[])
51{
52	const char *modestr = NULL;
53	const void *modep;
54	mode_t fifomode;
55	int ch, exitval;
56
57	while ((ch = getopt(argc, argv, "m:")) != -1)
58		switch(ch) {
59		case 'm':
60			f_mode = 1;
61			modestr = optarg;
62			break;
63		case '?':
64		default:
65			usage();
66		}
67	argc -= optind;
68	argv += optind;
69	if (argv[0] == NULL)
70		usage();
71
72	if (f_mode) {
73		umask(0);
74		errno = 0;
75		if ((modep = setmode(modestr)) == NULL) {
76			if (errno)
77				err(1, "setmode");
78			errx(1, "invalid file mode: %s", modestr);
79		}
80		fifomode = getmode(modep, BASEMODE);
81	} else {
82		fifomode = BASEMODE;
83	}
84
85	for (exitval = 0; *argv != NULL; ++argv)
86		if (mkfifo(*argv, fifomode) < 0) {
87			warn("%s", *argv);
88			exitval = 1;
89		}
90	exit(exitval);
91}
92
93static void
94usage(void)
95{
96	(void)fprintf(stderr, "usage: mkfifo [-m mode] fifo_name ...\n");
97	exit(1);
98}
99