[3320] | 1 | /* vi: set sw=4 ts=4: */
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| 2 | /*
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| 3 | * mknod implementation for busybox
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| 4 | *
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| 5 | * Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org>
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| 6 | *
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| 7 | * Licensed under GPLv2 or later, see file LICENSE in this source tree.
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| 8 | */
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| 9 |
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| 10 | /* BB_AUDIT SUSv3 N/A -- Matches GNU behavior. */
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| 11 |
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| 12 | #include <sys/sysmacros.h> // For makedev
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| 13 |
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| 14 | #include "libbb.h"
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| 15 | #include "libcoreutils/coreutils.h"
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| 16 |
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| 17 | /* This is a NOEXEC applet. Be very careful! */
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| 18 |
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| 19 | static const char modes_chars[] ALIGN1 = { 'p', 'c', 'u', 'b', 0, 1, 1, 2 };
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| 20 | static const mode_t modes_cubp[] = { S_IFIFO, S_IFCHR, S_IFBLK };
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| 21 |
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| 22 | int mknod_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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| 23 | int mknod_main(int argc, char **argv)
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| 24 | {
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| 25 | mode_t mode;
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| 26 | dev_t dev;
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| 27 | const char *name;
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| 28 |
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| 29 | mode = getopt_mk_fifo_nod(argv);
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| 30 | argv += optind;
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| 31 | argc -= optind;
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| 32 |
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| 33 | if (argc >= 2) {
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| 34 | name = strchr(modes_chars, argv[1][0]);
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| 35 | if (name != NULL) {
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| 36 | mode |= modes_cubp[(int)(name[4])];
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| 37 |
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| 38 | dev = 0;
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| 39 | if (*name != 'p') {
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| 40 | argc -= 2;
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| 41 | if (argc == 2) {
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| 42 | /* Autodetect what the system supports; these macros should
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| 43 | * optimize out to two constants. */
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| 44 | dev = makedev(xatoul_range(argv[2], 0, major(UINT_MAX)),
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| 45 | xatoul_range(argv[3], 0, minor(UINT_MAX)));
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| 46 | }
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| 47 | }
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| 48 |
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| 49 | if (argc == 2) {
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| 50 | name = *argv;
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| 51 | if (mknod(name, mode, dev) == 0) {
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| 52 | return EXIT_SUCCESS;
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| 53 | }
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| 54 | bb_simple_perror_msg_and_die(name);
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| 55 | }
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| 56 | }
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| 57 | }
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| 58 | bb_show_usage();
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| 59 | }
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