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
45 static void usage(void) __dead2;
46
47 static int f_mode;
48
49 int
main(int argc,char * argv[])50 main(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
93 static void
usage(void)94 usage(void)
95 {
96 (void)fprintf(stderr, "usage: mkfifo [-m mode] fifo_name ...\n");
97 exit(1);
98 }
99