1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
/* See LICENSE file for copyright and license details. */
#include <fcntl.h>
#include <sys/stat.h>
#include "fs.h"
#include "util.h"
static char *modestr = "";
static mode_t mask = 0;
static int ret = 0;
static void
chmodr(int dirfd, const char *name, struct stat *st, void *data, struct recursor *r)
{
mode_t m;
m = parsemode(modestr, st->st_mode, mask);
if (!S_ISLNK(st->st_mode) && fchmodat(dirfd, name, m, 0) < 0) {
weprintf("chmod %s:", r->path);
ret = 1;
} else if (S_ISDIR(st->st_mode)) {
recurse(dirfd, name, NULL, r);
}
}
static void
usage(void)
{
eprintf("usage: %s [-R] mode file ...\n", argv0);
}
int
main(int argc, char *argv[])
{
struct recursor r = { .fn = chmodr, .maxdepth = 1, .follow = 'H', .flags = DIRFIRST };
size_t i;
argv0 = *argv, argv0 ? (argc--, argv++) : (void *)0;
for (; *argv && (*argv)[0] == '-'; argc--, argv++) {
if (!(*argv)[1])
usage();
for (i = 1; (*argv)[i]; i++) {
switch ((*argv)[i]) {
case 'R':
r.maxdepth = 0;
break;
case 'r': case 'w': case 'x': case 'X': case 's': case 't':
/* -[rwxXst] are valid modes, so we're done */
if (i == 1)
goto done;
/* fallthrough */
case '-':
/* -- terminator */
if (i == 1 && !(*argv)[i + 1]) {
argv++;
argc--;
goto done;
}
/* fallthrough */
default:
usage();
}
}
}
done:
mask = getumask();
modestr = *argv;
if (argc < 2)
usage();
for (--argc, ++argv; *argv; argc--, argv++)
recurse(AT_FDCWD, *argv, NULL, &r);
return ret || recurse_status;
}
|
