text: /*
   * Copyright (c) 1990, 1993
   *	The Regents of the University of California.  All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. Neither the name of the University nor the names of its contributors
   *    may be used to endorse or promote products derived from this software
   *    without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   */
  
  #ifndef lint
  static const char copyright[] =
  "@(#) Copyright (c) 1990, 1993\n\
  	The Regents of the University of California.  All rights reserved.\n";
  #endif /* not lint */
  
  #ifndef lint
  #if 0
  static char sccsid[] = "@(#)mkfifo.c	8.2 (Berkeley) 1/5/94";
  #endif
  #endif /* not lint */
  #include <sys/cdefs.h>
  __FBSDID("$FreeBSD: head/usr.bin/mkfifo/mkfifo.c 314436 2017-02-28 23:42:47Z imp $");
  
  #include <sys/types.h>
  #include <sys/stat.h>
  
  #include <err.h>
  #include <errno.h>
  #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  #include <unistd.h>
  
  #define	BASEMODE	S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | \
  			S_IROTH | S_IWOTH
  
  static void usage(void);
  
  static int f_mode;
  
  #ifdef SHELL
  #define main mkfifocmd
  #include "bltin/bltin.h"
  #include "var.h"
  #include "helpers.h"
  #endif
  
  int
  main(int argc, char *argv[])
  {
  	const char *modestr = NULL;
  	const void *modep;
  	mode_t fifomode;
  	int ch, exitval;
  
  #ifdef SHELL
  	f_mode = 0;
  #endif
  	while ((ch = getopt(argc, argv, "m:")) != -1)
  		switch(ch) {
  		case 'm':
  			f_mode = 1;
  			modestr = optarg;
  			break;
  		case '?':
  		default:
  			usage();
  		}
  	argc -= optind;
  	argv += optind;
  	if (argv[0] == NULL)
  		usage();
  
  	if (f_mode) {
  		umask(0);
  		errno = 0;
  		if ((modep = setmode(modestr)) == NULL) {
  			if (errno)
  				err(1, "setmode");
  			errx(1, "invalid file mode: %s", modestr);
  		}
  		fifomode = getmode(modep, BASEMODE);
  #ifdef SHELL
  		free(__DECONST(char *, modep));
  #endif
  	} else {
  		fifomode = BASEMODE;
  	}
  
  	for (exitval = 0; *argv != NULL; ++argv)
  		if (mkfifo(*argv, fifomode) < 0) {
  			warn("%s", *argv);
  			exitval = 1;
  		}
  	exit(exitval);
  }
  
  static void
  usage(void)
  {
  	(void)fprintf(stderr, "usage: mkfifo [-m mode] fifo_name ...\n");
  	exit(1);
  }
  