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[] = "@(#)mkfifo.c 5.3 (Berkeley) 6/1/90"; 42 #endif /* not lint */ 43 44 #include <sys/types.h> 45 #include <sys/stat.h> 46 #include <errno.h> 47 #include <stdio.h> 48 #include <string.h> 49 50 main(argc, argv) 51 int argc; 52 char **argv; 53 { 54 extern int errno, optind; 55 int ch, exitval, pflag; 56 57 pflag = 0; 58 while ((ch = getopt(argc, argv, "p")) != EOF) 59 switch(ch) { 60 case 'p': 61 pflag = 1; 62 break; 63 case '?': 64 default: 65 usage(); 66 } 67 68 if (!*(argv += optind)) 69 usage(); 70 71 for (exitval = 0; *argv; ++argv) { 72 if (pflag && build(*argv)) { 73 exitval |= 1; 74 continue; 75 } 76 if (mkfifo(*argv, 0777) < 0) { 77 (void)fprintf(stderr, "mkfifo: %s: %s\n", 78 *argv, strerror(errno)); 79 exitval |= 1; 80 } 81 } 82 exit(exitval); 83 } 84 85 build(path) 86 char *path; 87 { 88 register char *p; 89 struct stat sb; 90 91 for (p = path; *p; p++) { 92 if (*p != '/') 93 continue; 94 if (stat(path, &sb)) { 95 if (errno != ENOENT || mkdir(path, 0777) < 0) { 96 (void)fprintf(stderr, "mkdir: %s: %s\n", 97 path, strerror(errno)); 98 return(1); 99 } 100 } 101 *p = '/'; 102 } 103 return(0); 104 } 105 106 usage() 107 { 108 (void)fprintf(stderr, "usage: mkfifo [-p] fifoname ...\n"); 109 exit(1); 110 } 111