blob: 4d8c598ead16c7eeaf5cbcf7792f5fe459ba538e [file] [log] [blame]
Erik Andersene49d5ec2000-02-08 19:58:47 +00001/* vi: set sw=4 ts=4: */
Eric Andersenc4996011999-10-20 22:08:37 +00002/*
3 * Mini mknod implementation for busybox
4 *
5 * Copyright (C) 1995, 1996 by Bruce Perens <bruce@pixar.com>.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 *
21 */
22
Eric Andersen3570a342000-09-25 21:45:58 +000023#include "busybox.h"
Eric Andersenb0e9a701999-10-18 22:28:26 +000024#include <stdio.h>
Eric Andersencc8ed391999-10-05 16:24:54 +000025#include <errno.h>
26#include <sys/types.h>
Eric Andersencc8ed391999-10-05 16:24:54 +000027#include <fcntl.h>
28#include <unistd.h>
29
Erik Andersene49d5ec2000-02-08 19:58:47 +000030int mknod_main(int argc, char **argv)
Eric Andersencc8ed391999-10-05 16:24:54 +000031{
Erik Andersen5e1189e2000-04-15 16:34:54 +000032 char *thisarg;
Erik Andersene49d5ec2000-02-08 19:58:47 +000033 mode_t mode = 0;
Erik Andersen5e1189e2000-04-15 16:34:54 +000034 mode_t perm = 0666;
Erik Andersene49d5ec2000-02-08 19:58:47 +000035 dev_t dev = 0;
Eric Andersencc8ed391999-10-05 16:24:54 +000036
Erik Andersen5e1189e2000-04-15 16:34:54 +000037 argc--;
38 argv++;
39
40 /* Parse any options */
41 while (argc > 1) {
42 if (**argv != '-')
43 break;
44 thisarg = *argv;
45 thisarg++;
46 switch (*thisarg) {
47 case 'm':
48 argc--;
49 argv++;
50 parse_mode(*argv, &perm);
Erik Andersen6ed02a02000-04-28 22:10:34 +000051 umask(0);
Erik Andersen5e1189e2000-04-15 16:34:54 +000052 break;
53 default:
54 usage(mknod_usage);
55 }
56 argc--;
57 argv++;
58 }
59 if (argc != 4 && argc != 2) {
Erik Andersene49d5ec2000-02-08 19:58:47 +000060 usage(mknod_usage);
Erik Andersen812d4662000-01-07 18:30:40 +000061 }
Erik Andersen5e1189e2000-04-15 16:34:54 +000062 switch (argv[1][0]) {
Eric Andersencc8ed391999-10-05 16:24:54 +000063 case 'c':
64 case 'u':
65 mode = S_IFCHR;
66 break;
67 case 'b':
68 mode = S_IFBLK;
69 break;
70 case 'p':
71 mode = S_IFIFO;
Erik Andersen5e1189e2000-04-15 16:34:54 +000072 if (argc!=2) {
73 usage(mknod_usage);
74 }
Eric Andersencc8ed391999-10-05 16:24:54 +000075 break;
76 default:
Erik Andersene49d5ec2000-02-08 19:58:47 +000077 usage(mknod_usage);
Eric Andersencc8ed391999-10-05 16:24:54 +000078 }
79
Erik Andersene49d5ec2000-02-08 19:58:47 +000080 if (mode == S_IFCHR || mode == S_IFBLK) {
Erik Andersen6ed02a02000-04-28 22:10:34 +000081 dev = (atoi(argv[2]) << 8) | atoi(argv[3]);
Eric Andersencc8ed391999-10-05 16:24:54 +000082 }
83
Erik Andersen5e1189e2000-04-15 16:34:54 +000084 mode |= perm;
Eric Andersencc8ed391999-10-05 16:24:54 +000085
Erik Andersen5e1189e2000-04-15 16:34:54 +000086 if (mknod(argv[0], mode, dev) != 0)
Matt Kraaia9819b22000-12-22 01:48:07 +000087 perror_msg_and_die("%s", argv[0]);
Matt Kraai3e856ce2000-12-01 02:55:13 +000088 return EXIT_SUCCESS;
Eric Andersencc8ed391999-10-05 16:24:54 +000089}
Erik Andersen5e1189e2000-04-15 16:34:54 +000090