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sbase/chmod.c
FRIGN b55de3d1a2 Add mandoc-manpage for chmod(1)
and mark it as finished in README.

One small rationale on the way the manpage is set up: Looking at
the coreutils manpage, it does not invite to be a quick reference
guide, whereas I wrote this manpage to be short and concise in regard
to the information the advanced user needs.
No one needs to explain what an octal number is. That's not part of
the scope of this manpage.
Also, nobody wants to read a block of text just to find out how
to build an octal mode string.
2015-01-17 21:59:37 +00:00

75 lines
1.2 KiB
C

/* See LICENSE file for copyright and license details. */
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <unistd.h>
#include "util.h"
static int rflag = 0;
static char *modestr = "";
static mode_t mask = 0;
static int ret = 0;
void
chmodr(const char *path)
{
struct stat st;
mode_t m;
if (stat(path, &st) < 0) {
weprintf("stat %s:", path);
ret = 1;
return;
}
m = parsemode(modestr, st.st_mode, mask);
if (chmod(path, m) < 0) {
weprintf("chmod %s:", path);
ret = 1;
}
if (rflag)
recurse(path, chmodr);
}
static void
usage(void)
{
eprintf("usage: %s [-R] mode [file ...]\n", argv0);
}
int
main(int argc, char *argv[])
{
size_t i;
argv0 = argv[0];
for (i = 1; i < argc && argv[i][0] == '-'; i++) {
switch (argv[i][1]) {
case 'R':
rflag = 1;
break;
case 'r': case 'w': case 'x': case 's': case 't':
/*
* -[rwxst] are valid modes so do not interpret
* them as options - in any case we are done if
* we hit this case
*/
goto done;
default:
usage();
}
}
done:
mask = getumask();
modestr = argv[i];
if (argc - i - 1 < 1)
usage();
for (++i; i < argc; i++)
chmodr(argv[i]);
return ret;
}