sbase/chown.c

91 lines
1.5 KiB
C
Raw Normal View History

2011-05-24 23:24:33 +00:00
/* See LICENSE file for copyright and license details. */
#include <errno.h>
#include <grp.h>
#include <pwd.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "util.h"
static void chownpwgr(const char *);
static bool rflag = false;
2014-11-02 22:24:53 +00:00
static uid_t uid = -1;
static gid_t gid = -1;
2014-10-02 22:46:04 +00:00
static int ret = 0;
2011-05-24 23:24:33 +00:00
2013-06-14 18:20:47 +00:00
static void
usage(void)
{
eprintf("usage: %s [-Rr] [owner][:[group]] file...\n", argv0);
2013-06-14 18:20:47 +00:00
}
2011-05-24 23:24:33 +00:00
int
main(int argc, char *argv[])
{
2014-11-02 22:24:53 +00:00
char *owner, *group, *end;
struct passwd *pw;
struct group *gr;
2011-05-24 23:24:33 +00:00
2013-06-14 18:20:47 +00:00
ARGBEGIN {
case 'R':
2013-06-14 18:20:47 +00:00
case 'r':
rflag = true;
break;
default:
usage();
} ARGEND;
2013-06-14 18:20:47 +00:00
if(argc == 0)
usage();
owner = argv[0];
argv++;
argc--;
2011-05-24 23:24:33 +00:00
if((group = strchr(owner, ':')))
*group++ = '\0';
if(owner && *owner) {
errno = 0;
pw = getpwnam(owner);
2014-11-02 22:24:53 +00:00
if(pw) {
uid = pw->pw_uid;
} else {
2014-07-09 13:48:59 +00:00
if(errno != 0)
eprintf("getpwnam %s:", owner);
2014-11-02 22:24:53 +00:00
uid = strtoul(owner, &end, 10);
if(*end != '\0')
2014-07-09 13:48:59 +00:00
eprintf("getpwnam %s: no such user\n", owner);
}
2011-05-24 23:24:33 +00:00
}
if(group && *group) {
errno = 0;
gr = getgrnam(group);
2014-11-02 22:24:53 +00:00
if(gr) {
gid = gr->gr_gid;
} else {
2014-07-09 13:48:59 +00:00
if(errno != 0)
eprintf("getgrnam %s:", group);
2014-11-02 22:24:53 +00:00
gid = strtoul(group, &end, 10);
if(*end != '\0')
2014-07-09 13:48:59 +00:00
eprintf("getgrnam %s: no such group\n", group);
}
2011-05-24 23:24:33 +00:00
}
2013-06-14 18:20:47 +00:00
for(; argc > 0; argc--, argv++)
chownpwgr(argv[0]);
return ret;
2011-05-24 23:24:33 +00:00
}
void
chownpwgr(const char *path)
{
2014-11-02 22:24:53 +00:00
if(chown(path, uid, gid) == -1) {
weprintf("chown %s:", path);
2014-10-02 22:46:04 +00:00
ret = 1;
}
2011-05-24 23:24:33 +00:00
if(rflag)
recurse(path, chownpwgr);
}