mknod.c - sbase - suckless unix tools | |
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mknod.c (1171B) | |
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1 /* See LICENSE file for copyright and license details. */ | |
2 #include <sys/stat.h> | |
3 #include <sys/types.h> | |
4 #ifndef makedev | |
5 #include <sys/sysmacros.h> | |
6 #endif | |
7 | |
8 #include <fcntl.h> | |
9 #include <stdio.h> | |
10 #include <stdlib.h> | |
11 #include <string.h> | |
12 #include <unistd.h> | |
13 | |
14 #include "util.h" | |
15 | |
16 static void | |
17 usage(void) | |
18 { | |
19 eprintf("usage: %s [-m mode] name b|c|u major minor\n" | |
20 " %s [-m mode] name p\n", | |
21 argv0, argv0); | |
22 } | |
23 | |
24 int | |
25 main(int argc, char *argv[]) | |
26 { | |
27 mode_t mode = 0666; | |
28 dev_t dev; | |
29 | |
30 ARGBEGIN { | |
31 case 'm': | |
32 mode = parsemode(EARGF(usage()), mode, umask(0)); | |
33 break; | |
34 default: | |
35 usage(); | |
36 } ARGEND; | |
37 | |
38 if (argc < 2) | |
39 usage(); | |
40 | |
41 if (strlen(argv[1]) != 1) | |
42 goto invalid; | |
43 switch (argv[1][0]) { | |
44 case 'b': | |
45 mode |= S_IFBLK; | |
46 break; | |
47 case 'u': | |
48 case 'c': | |
49 mode |= S_IFCHR; | |
50 break; | |
51 case 'p': | |
52 mode |= S_IFIFO; | |
53 break; | |
54 default: | |
55 invalid: | |
56 eprintf("invalid type '%s'\n", argv[1]); | |
57 } | |
58 | |
59 if (S_ISFIFO(mode)) { | |
60 if (argc != 2) | |
61 usage(); | |
62 dev = 0; | |
63 } else { | |
64 if (argc != 4) | |
65 usage(); | |
66 dev = makedev(estrtonum(argv[2], 0, LLONG_MAX), estrtonu… | |
67 } | |
68 | |
69 if (mknod(argv[0], mode, dev) == -1) | |
70 eprintf("mknod %s:", argv[0]); | |
71 return 0; | |
72 } |