1 /* 2 * Copyright (c) 1990 Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef lint 35 char copyright[] = 36 "@(#) Copyright (c) 1990 Regents of the University of California.\n\ 37 All rights reserved.\n"; 38 #endif /* not lint */ 39 40 #ifndef lint 41 /*static char sccsid[] = "from: @(#)mkfifo.c 5.3 (Berkeley) 6/1/90";*/ 42 static char rcsid[] = "$Id: mkfifo.c,v 1.4 1993/08/27 22:30:31 jtc Exp $"; 43 #endif /* not lint */ 44 45 #include <sys/types.h> 46 #include <sys/stat.h> 47 #include <errno.h> 48 #include <stdio.h> 49 #include <stdlib.h> 50 #include <string.h> 51 52 static void usage(); 53 extern void *setmode(); 54 extern mode_t getmode(); 55 56 int 57 main(argc, argv) 58 int argc; 59 char **argv; 60 { 61 int ch, exitval; 62 void * set; 63 mode_t mode; 64 65 /* The default mode is the value of the bitwise inclusive or of 66 S_IRUSR, S_IWUSR, S_IRGRP, S_IWGRP, S_IROTH, and S_IWOTH 67 modified by the file creation mask */ 68 mode = 0666 & ~umask(0); 69 70 while ((ch = getopt(argc, argv, "m:")) != EOF) 71 switch(ch) { 72 case 'm': 73 if (!(set = setmode(optarg))) { 74 (void)fprintf(stderr, "mkfifo: invalid file mode.\n"); 75 exit(1); 76 } 77 /* In symbolic mode strings, the + and - operators are 78 interpreted relative to an assumed initial mode of 79 a=rw. */ 80 mode = getmode (set, 0666); 81 break; 82 case '?': 83 default: 84 usage(); 85 } 86 87 if (!*(argv += optind)) 88 usage(); 89 90 for (exitval = 0; *argv; ++argv) { 91 if (mkfifo(*argv, mode) < 0) { 92 (void)fprintf(stderr, "mkfifo: %s: %s\n", 93 *argv, strerror(errno)); 94 exitval = 1; 95 } 96 } 97 exit(exitval); 98 } 99 100 static void 101 usage() 102 { 103 (void)fprintf(stderr, "usage: mkfifo [-m mode] fifoname ...\n"); 104 exit(1); 105 } 106