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 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 94 usage(void) 95 { 96 (void)fprintf(stderr, "usage: mkfifo [-m mode] fifo_name ...\n"); 97 exit(1); 98 } 99