sbase/chgrp.c

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