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 are permitted 6 * provided that the above copyright notice and this paragraph are 7 * duplicated in all such forms and that any documentation, 8 * advertising materials, and other materials related to such 9 * distribution and use acknowledge that the software was developed 10 * by the University of California, Berkeley. The name of the 11 * University may not be used to endorse or promote products derived 12 * from this software without specific prior written permission. 13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 15 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 16 */ 17 18 #ifndef lint 19 char copyright[] = 20 "@(#) Copyright (c) 1990 Regents of the University of California.\n\ 21 All rights reserved.\n"; 22 #endif /* not lint */ 23 24 #ifndef lint 25 static char sccsid[] = "@(#)mkfifo.c 5.2 (Berkeley) 05/15/90"; 26 #endif /* not lint */ 27 28 #include <sys/types.h> 29 #include <sys/stat.h> 30 #include <errno.h> 31 #include <stdio.h> 32 #include <string.h> 33 34 main(argc, argv) 35 int argc; 36 char **argv; 37 { 38 extern int errno, optind; 39 int ch, exitval, pflag; 40 41 pflag = 0; 42 while ((ch = getopt(argc, argv, "p")) != EOF) 43 switch(ch) { 44 case 'p': 45 pflag = 1; 46 break; 47 case '?': 48 default: 49 usage(); 50 } 51 52 if (!*(argv += optind)) 53 usage(); 54 55 for (exitval = 0; *argv; ++argv) { 56 if (pflag && build(*argv)) { 57 exitval |= 1; 58 continue; 59 } 60 if (mkfifo(*argv, 0777) < 0) { 61 (void)fprintf(stderr, "mkfifo: %s: %s\n", 62 *argv, strerror(errno)); 63 exitval |= 1; 64 } 65 } 66 exit(exitval); 67 } 68 69 build(path) 70 char *path; 71 { 72 register char *p; 73 struct stat sb; 74 75 for (p = path; *p; p++) { 76 if (*p != '/') 77 continue; 78 if (stat(path, &sb)) { 79 if (errno != ENOENT || mkdir(path, 0777) < 0) { 80 (void)fprintf(stderr, "mkdir: %s: %s\n", 81 path, strerror(errno)); 82 return(1); 83 } 84 } 85 *p = '/'; 86 } 87 return(0); 88 } 89 90 usage() 91 { 92 (void)fprintf(stderr, "usage: mkfifo [-p] fifoname ...\n"); 93 exit(1); 94 } 95