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	chmod.c - sbase - suckless unix tools
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	---
	chmod.c (1553B)
	---
	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 }