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mkfifo.c revision 1.9 
      1 /*	$NetBSD: mkfifo.c,v 1.9 2000/10/10 14:30:41 enami Exp $	*/
      2 
      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. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by the University of
     18  *	California, Berkeley and its contributors.
     19  * 4. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  */
     35 
     36 #include <sys/cdefs.h>
     37 #ifndef lint
     38 __COPYRIGHT("@(#) Copyright (c) 1990, 1993\n\
     39 	The Regents of the University of California.  All rights reserved.\n");
     40 #endif /* not lint */
     41 
     42 #ifndef lint
     43 #if 0
     44 static char sccsid[] = "@(#)mkfifo.c	8.2 (Berkeley) 1/5/94";
     45 #endif
     46 __RCSID("$NetBSD: mkfifo.c,v 1.9 2000/10/10 14:30:41 enami Exp $");
     47 #endif /* not lint */
     48 
     49 #include <stdio.h>
     50 #include <stdlib.h>
     51 #include <string.h>
     52 #include <locale.h>
     53 #include <errno.h>
     54 #include <sys/types.h>
     55 #include <sys/stat.h>
     56 #include <unistd.h>
     57 #include <err.h>
     58 
     59 int	main __P((int, char **));
     60 static void usage __P((void));
     61 
     62 int
     63 main(argc, argv)
     64 	int argc;
     65 	char *argv[];
     66 {
     67 	int ch, exitval;
     68 	void *set;
     69 	mode_t mode;
     70 
     71 	setlocale (LC_ALL, "");
     72 
     73 	/* The default mode is the value of the bitwise inclusive or of
     74 	   S_IRUSR, S_IWUSR, S_IRGRP, S_IWGRP, S_IROTH, and S_IWOTH
     75 	   modified by the file creation mask */
     76 	mode = 0666 & ~umask(0);
     77 
     78 	while ((ch = getopt(argc, argv, "m:")) != -1)
     79 		switch(ch) {
     80 		case 'm':
     81 			if (!(set = setmode(optarg))) {
     82 				errx(1, "invalid file mode.");
     83 				/* NOTREACHED */
     84 			}
     85 			/* In symbolic mode strings, the + and - operators are
     86 			   interpreted relative to an assumed initial mode of
     87 			   a=rw. */
     88 			mode = getmode(set, 0666);
     89 			free(set);
     90 			break;
     91 		case '?':
     92 		default:
     93 			usage();
     94 		}
     95 	argc -= optind;
     96 	argv += optind;
     97 	if (argv[0] == NULL)
     98 		usage();
     99 
    100 	for (exitval = 0; *argv; ++argv) {
    101 		if (mkfifo(*argv, mode) < 0) {
    102 			warn("%s", *argv);
    103 			exitval = 1;
    104 		}
    105 	}
    106 	exit(exitval);
    107 }
    108 
    109 void
    110 usage()
    111 {
    112 	(void)fprintf(stderr, "usage: mkfifo [-m mode] fifoname ...\n");
    113 	exit(1);
    114 }
    115