sbase/chgrp.c

80 lines
1.3 KiB
C

/* See LICENSE file for copyright and license details. */
#include <sys/stat.h>
#include <errno.h>
#include <grp.h>
#include <unistd.h>
#include "util.h"
static int gid;
static int status;
static int Rflag;
static int fflag = 'P';
static struct stat st;
static char *chown_f_name = "chown";
static int (*chown_f)(const char *, uid_t, gid_t) = chown;
static void
chgrp(const char *path, int fflag)
{
if (chown_f(path, st.st_uid, gid) < 0) {
weprintf("%s %s:", chown_f_name, path);
status = 1;
}
if (Rflag)
recurse(path, chgrp, fflag);
}
static void
usage(void)
{
eprintf("usage: chgrp [-h] [-R [-H | -L | -P]] group file ...\n");
}
int
main(int argc, char *argv[])
{
struct group *gr;
ARGBEGIN {
case 'h':
chown_f_name = "lchown";
chown_f = lchown;
break;
case 'R':
Rflag = 1;
break;
case 'H':
case 'L':
case 'P':
fflag = ARGC();
break;
default:
usage();
} ARGEND;
if (argc < 2 || (chown_f == lchown && Rflag))
usage();
errno = 0;
gr = getgrnam(argv[0]);
if (!gr) {
if (errno)
eprintf("getgrnam %s:", argv[0]);
else
eprintf("getgrnam %s: no such group\n", argv[0]);
}
gid = gr->gr_gid;
while (*++argv) {
if (stat(*argv, &st) < 0) {
weprintf("stat %s:", *argv);
status = 1;
continue;
}
chgrp(*argv, fflag);
}
return status;
}