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 #ifndef lint
33 static const char copyright[] =
34 "@(#) Copyright (c) 1990, 1993\n\
35 The Regents of the University of California. All rights reserved.\n";
36 #endif /* not lint */
37
38 #ifndef lint
39 #if 0
40 static char sccsid[] = "@(#)mkfifo.c 8.2 (Berkeley) 1/5/94";
41 #endif
42 #endif /* not lint */
43 #include <sys/cdefs.h>
44 __FBSDID("$FreeBSD$");
45
46 #include <sys/types.h>
47 #include <sys/stat.h>
48
49 #include <err.h>
50 #include <errno.h>
51 #include <stdio.h>
52 #include <stdlib.h>
53 #include <string.h>
54 #include <unistd.h>
55
56 #define BASEMODE S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | \
57 S_IROTH | S_IWOTH
58
59 static void usage(void);
60
61 static int f_mode;
62
63 int
main(int argc,char * argv[])64 main(int argc, char *argv[])
65 {
66 const char *modestr = NULL;
67 const void *modep;
68 mode_t fifomode;
69 int ch, exitval;
70
71 while ((ch = getopt(argc, argv, "m:")) != -1)
72 switch(ch) {
73 case 'm':
74 f_mode = 1;
75 modestr = optarg;
76 break;
77 case '?':
78 default:
79 usage();
80 }
81 argc -= optind;
82 argv += optind;
83 if (argv[0] == NULL)
84 usage();
85
86 if (f_mode) {
87 umask(0);
88 errno = 0;
89 if ((modep = setmode(modestr)) == NULL) {
90 if (errno)
91 err(1, "setmode");
92 errx(1, "invalid file mode: %s", modestr);
93 }
94 fifomode = getmode(modep, BASEMODE);
95 } else {
96 fifomode = BASEMODE;
97 }
98
99 for (exitval = 0; *argv != NULL; ++argv)
100 if (mkfifo(*argv, fifomode) < 0) {
101 warn("%s", *argv);
102 exitval = 1;
103 }
104 exit(exitval);
105 }
106
107 static void
usage(void)108 usage(void)
109 {
110 (void)fprintf(stderr, "usage: mkfifo [-m mode] fifo_name ...\n");
111 exit(1);
112 }
113