chmod.c - sbase - suckless unix tools | |
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chmod.c (1553B) | |
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1 /* See LICENSE file for copyright and license details. */ | |
2 #include <fcntl.h> | |
3 #include <sys/stat.h> | |
4 | |
5 #include "fs.h" | |
6 #include "util.h" | |
7 | |
8 static char *modestr = ""; | |
9 static mode_t mask = 0; | |
10 static int ret = 0; | |
11 | |
12 static void | |
13 chmodr(int dirfd, const char *name, struct stat *st, void *data, struct … | |
14 { | |
15 mode_t m; | |
16 | |
17 m = parsemode(modestr, st->st_mode, mask); | |
18 if (!S_ISLNK(st->st_mode) && fchmodat(dirfd, name, m, 0) < 0) { | |
19 weprintf("chmod %s:", r->path); | |
20 ret = 1; | |
21 } else if (S_ISDIR(st->st_mode)) { | |
22 recurse(dirfd, name, NULL, r); | |
23 } | |
24 } | |
25 | |
26 static void | |
27 usage(void) | |
28 { | |
29 eprintf("usage: %s [-R] mode file ...\n", argv0); | |
30 } | |
31 | |
32 int | |
33 main(int argc, char *argv[]) | |
34 { | |
35 struct recursor r = { .fn = chmodr, .maxdepth = 1, .follow = 'H'… | |
36 size_t i; | |
37 | |
38 argv0 = *argv, argv0 ? (argc--, argv++) : (void *)0; | |
39 | |
40 for (; *argv && (*argv)[0] == '-'; argc--, argv++) { | |
41 if (!(*argv)[1]) | |
42 usage(); | |
43 for (i = 1; (*argv)[i]; i++) { | |
44 switch ((*argv)[i]) { | |
45 case 'R': | |
46 r.maxdepth = 0; | |
47 break; | |
48 case 'r': case 'w': case 'x': case 'X': case 's'… | |
49 /* -[rwxXst] are valid modes, so we're d… | |
50 if (i == 1) | |
51 goto done; | |
52 /* fallthrough */ | |
53 case '-': | |
54 /* -- terminator */ | |
55 if (i == 1 && !(*argv)[i + 1]) { | |
56 argv++; | |
57 argc--; | |
58 goto done; | |
59 } | |
60 /* fallthrough */ | |
61 default: | |
62 usage(); | |
63 } | |
64 } | |
65 } | |
66 done: | |
67 mask = getumask(); | |
68 modestr = *argv; | |
69 | |
70 if (argc < 2) | |
71 usage(); | |
72 | |
73 for (--argc, ++argv; *argv; argc--, argv++) | |
74 recurse(AT_FDCWD, *argv, NULL, &r); | |
75 | |
76 return ret || recurse_status; | |
77 } |