hush/coreutils/mkfifo.c

/*
 * Mini mkfifo implementation for busybox
 *
 * Copyright (C) 1999 by Randolph Chung <tausq@debian.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 */

#include "internal.h"
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>

static const char mkfifo_usage[] = "mkfifo [OPTIONS] name\n\n"
"Create the named fifo\n\n"
"Options:\n"
"\t-m\tcreate the fifo with the specified mode; default = a=rw-umask\n";

extern int mkfifo_main(int argc, char **argv)
{
    char *thisarg;
    mode_t mode = 0666;
    argc--;
    argv++;

    /* Parse any options */
    while (argc > 1) {
       if (**argv != '-') usage(mkfifo_usage);
       thisarg = *argv; thisarg++;
       switch (*thisarg) {
	    case 'm':
	        argc--; argv++;
	        parse_mode(*argv, &mode);
		break;
	    default:
		usage (mkfifo_usage);
	    }
	argc--;	argv++;
    }
    if (argc < 1) usage (mkfifo_usage);
    if (mkfifo(*argv, mode) < 0) {
        perror("mkfifo");
        exit(255);
    } else {
        exit(TRUE);
    }
}