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 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 103 usage(void) 104 { 105 (void)fprintf(stderr, "usage: mkfifo [-m mode] fifoname ...\n"); 106 exit(1); 107 } 108