1 /* $NetBSD: mkfifo.c,v 1.13 2011/09/04 20:30:34 joerg Exp $ */
2
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/cdefs.h>
33 #ifndef lint
34 __COPYRIGHT("@(#) Copyright (c) 1990, 1993\
35 The Regents of the University of California. All rights reserved.");
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 __RCSID("$NetBSD: mkfifo.c,v 1.13 2011/09/04 20:30:34 joerg Exp $");
43 #endif /* not lint */
44
45 #include <stdio.h>
46 #include <stdlib.h>
47 #include <string.h>
48 #include <locale.h>
49 #include <errno.h>
50 #include <sys/types.h>
51 #include <sys/stat.h>
52 #include <unistd.h>
53 #include <err.h>
54
55 __dead static void usage(void);
56
57 int
main(int argc,char * argv[])58 main(int argc, char *argv[])
59 {
60 int ch, exitval;
61 void *set;
62 mode_t mode;
63
64 setlocale (LC_ALL, "");
65
66 /* The default mode is the value of the bitwise inclusive or of
67 S_IRUSR, S_IWUSR, S_IRGRP, S_IWGRP, S_IROTH, and S_IWOTH
68 modified by the file creation mask */
69 mode = 0666 & ~umask(0);
70
71 while ((ch = getopt(argc, argv, "m:")) != -1)
72 switch(ch) {
73 case 'm':
74 if (!(set = setmode(optarg))) {
75 err(1, "Cannot set file mode `%s'", optarg);
76 /* NOTREACHED */
77 }
78 /* In symbolic mode strings, the + and - operators are
79 interpreted relative to an assumed initial mode of
80 a=rw. */
81 mode = getmode(set, 0666);
82 free(set);
83 break;
84 case '?':
85 default:
86 usage();
87 }
88 argc -= optind;
89 argv += optind;
90 if (argv[0] == NULL)
91 usage();
92
93 for (exitval = 0; *argv; ++argv) {
94 if (mkfifo(*argv, mode) < 0) {
95 warn("%s", *argv);
96 exitval = 1;
97 }
98 }
99 exit(exitval);
100 }
101
102 static void
usage(void)103 usage(void)
104 {
105 (void)fprintf(stderr, "usage: mkfifo [-m mode] fifoname ...\n");
106 exit(1);
107 }
108