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      1 /*	$NetBSD: mkfifo.c,v 1.13 2011/09/04 20:30:34 joerg 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. 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/cdefs.h>
     33 #ifndef lint
     34 __COPYRIGHT("@(#) Copyright (c) 1990, 1993\
     35  The Regents of the University of California.  All rights reserved.");
     36 #endif /* not lint */
     37 
     38 #ifndef lint
     39 #if 0
     40 static char sccsid[] = "@(#)mkfifo.c	8.2 (Berkeley) 1/5/94";
     41 #endif
     42 __RCSID("$NetBSD: mkfifo.c,v 1.13 2011/09/04 20:30:34 joerg Exp $");
     43 #endif /* not lint */
     44 
     45 #include <stdio.h>
     46 #include <stdlib.h>
     47 #include <string.h>
     48 #include <locale.h>
     49 #include <errno.h>
     50 #include <sys/types.h>
     51 #include <sys/stat.h>
     52 #include <unistd.h>
     53 #include <err.h>
     54 
     55 __dead static void usage(void);
     56 
     57 int
     58 main(int argc, char *argv[])
     59 {
     60 	int ch, exitval;
     61 	void *set;
     62 	mode_t mode;
     63 
     64 	setlocale (LC_ALL, "");
     65 
     66 	/* The default mode is the value of the bitwise inclusive or of
     67 	   S_IRUSR, S_IWUSR, S_IRGRP, S_IWGRP, S_IROTH, and S_IWOTH
     68 	   modified by the file creation mask */
     69 	mode = 0666 & ~umask(0);
     70 
     71 	while ((ch = getopt(argc, argv, "m:")) != -1)
     72 		switch(ch) {
     73 		case 'm':
     74 			if (!(set = setmode(optarg))) {
     75 				err(1, "Cannot set file mode `%s'", optarg);
     76 				/* NOTREACHED */
     77 			}
     78 			/* In symbolic mode strings, the + and - operators are
     79 			   interpreted relative to an assumed initial mode of
     80 			   a=rw. */
     81 			mode = getmode(set, 0666);
     82 			free(set);
     83 			break;
     84 		case '?':
     85 		default:
     86 			usage();
     87 		}
     88 	argc -= optind;
     89 	argv += optind;
     90 	if (argv[0] == NULL)
     91 		usage();
     92 
     93 	for (exitval = 0; *argv; ++argv) {
     94 		if (mkfifo(*argv, mode) < 0) {
     95 			warn("%s", *argv);
     96 			exitval = 1;
     97 		}
     98 	}
     99 	exit(exitval);
    100 }
    101 
    102 static void
    103 usage(void)
    104 {
    105 	(void)fprintf(stderr, "usage: mkfifo [-m mode] fifoname ...\n");
    106 	exit(1);
    107 }
    108