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 #include <sys/types.h> 45 #include <sys/stat.h> 46 47 #include <err.h> 48 #include <errno.h> 49 #include <stdio.h> 50 #include <stdlib.h> 51 #include <string.h> 52 #include <unistd.h> 53 54 #define BASEMODE S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | \ 55 S_IROTH | S_IWOTH 56 57 static void usage(void) __dead2; 58 59 static int f_mode; 60 61 int 62 main(int argc, char *argv[]) 63 { 64 const char *modestr = NULL; 65 const void *modep; 66 mode_t fifomode; 67 int ch, exitval; 68 69 while ((ch = getopt(argc, argv, "m:")) != -1) 70 switch(ch) { 71 case 'm': 72 f_mode = 1; 73 modestr = optarg; 74 break; 75 case '?': 76 default: 77 usage(); 78 } 79 argc -= optind; 80 argv += optind; 81 if (argv[0] == NULL) 82 usage(); 83 84 if (f_mode) { 85 umask(0); 86 errno = 0; 87 if ((modep = setmode(modestr)) == NULL) { 88 if (errno) 89 err(1, "setmode"); 90 errx(1, "invalid file mode: %s", modestr); 91 } 92 fifomode = getmode(modep, BASEMODE); 93 } else { 94 fifomode = BASEMODE; 95 } 96 97 for (exitval = 0; *argv != NULL; ++argv) 98 if (mkfifo(*argv, fifomode) < 0) { 99 warn("%s", *argv); 100 exitval = 1; 101 } 102 exit(exitval); 103 } 104 105 static void 106 usage(void) 107 { 108 (void)fprintf(stderr, "usage: mkfifo [-m mode] fifo_name ...\n"); 109 exit(1); 110 } 111