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Erik Andersene49d5ec2000-02-08 19:58:47 +00001/* vi: set sw=4 ts=4: */
Eric Andersenc4996011999-10-20 22:08:37 +00002/*
Manuel Novoa III cad53642003-03-19 09:13:01 +00003 * mknod implementation for busybox
Eric Andersenc4996011999-10-20 22:08:37 +00004 *
Manuel Novoa III cad53642003-03-19 09:13:01 +00005 * Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org>
Eric Andersenc4996011999-10-20 22:08:37 +00006 *
Denys Vlasenko0ef64bd2010-08-16 20:14:46 +02007 * Licensed under GPLv2 or later, see file LICENSE in this source tree.
Eric Andersenc4996011999-10-20 22:08:37 +00008 */
9
Manuel Novoa III cad53642003-03-19 09:13:01 +000010/* BB_AUDIT SUSv3 N/A -- Matches GNU behavior. */
11
Rob Landleycebea722006-03-22 00:46:36 +000012#include <sys/sysmacros.h> // For makedev
Denis Vlasenko13858992006-10-08 12:49:22 +000013
Denis Vlasenkob6adbf12007-05-26 19:00:18 +000014#include "libbb.h"
Manuel Novoa III cad53642003-03-19 09:13:01 +000015#include "libcoreutils/coreutils.h"
Eric Andersencc8ed391999-10-05 16:24:54 +000016
Denis Vlasenko6ca409e2007-08-12 20:58:27 +000017static const char modes_chars[] ALIGN1 = { 'p', 'c', 'u', 'b', 0, 1, 1, 2 };
Manuel Novoa III cad53642003-03-19 09:13:01 +000018static const mode_t modes_cubp[] = { S_IFIFO, S_IFCHR, S_IFBLK };
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Denis Vlasenko9b49a5e2007-10-11 10:05:36 +000020int mknod_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
Rob Landleydfba7412006-03-06 20:47:33 +000021int mknod_main(int argc, char **argv)
Eric Andersencc8ed391999-10-05 16:24:54 +000022{
Manuel Novoa III cad53642003-03-19 09:13:01 +000023 mode_t mode;
24 dev_t dev;
25 const char *name;
Eric Andersencc8ed391999-10-05 16:24:54 +000026
Denis Vlasenko68404f12008-03-17 09:00:54 +000027 mode = getopt_mk_fifo_nod(argv);
Manuel Novoa III cad53642003-03-19 09:13:01 +000028 argv += optind;
29 argc -= optind;
Erik Andersen5e1189e2000-04-15 16:34:54 +000030
Denis Vlasenko6bef3d12007-11-06 03:05:54 +000031 if (argc >= 2) {
32 name = strchr(modes_chars, argv[1][0]);
33 if (name != NULL) {
34 mode |= modes_cubp[(int)(name[4])];
Manuel Novoa III cad53642003-03-19 09:13:01 +000035
Denis Vlasenko6bef3d12007-11-06 03:05:54 +000036 dev = 0;
37 if (*name != 'p') {
38 argc -= 2;
39 if (argc == 2) {
40 /* Autodetect what the system supports; these macros should
41 * optimize out to two constants. */
42 dev = makedev(xatoul_range(argv[2], 0, major(UINT_MAX)),
43 xatoul_range(argv[3], 0, minor(UINT_MAX)));
44 }
Manuel Novoa III cad53642003-03-19 09:13:01 +000045 }
Denis Vlasenko6bef3d12007-11-06 03:05:54 +000046
47 if (argc == 2) {
48 name = *argv;
49 if (mknod(name, mode, dev) == 0) {
50 return EXIT_SUCCESS;
51 }
52 bb_simple_perror_msg_and_die(name);
53 }
Erik Andersen5e1189e2000-04-15 16:34:54 +000054 }
Eric Andersencc8ed391999-10-05 16:24:54 +000055 }
Manuel Novoa III cad53642003-03-19 09:13:01 +000056 bb_show_usage();
Eric Andersencc8ed391999-10-05 16:24:54 +000057}