mirror of
https://github.com/sheumann/hush.git
synced 2024-11-05 06:07:00 +00:00
87 lines
2.1 KiB
C
87 lines
2.1 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Mini id implementation for busybox
|
|
*
|
|
* Copyright (C) 2000 by Randolph Chung <tausq@debian.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
*/
|
|
|
|
/* BB_AUDIT SUSv3 _NOT_ compliant -- option -G is not currently supported. */
|
|
|
|
#include "busybox.h"
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
#include <getopt.h>
|
|
#include <string.h>
|
|
#include <sys/types.h>
|
|
|
|
#define NO_GROUP 1
|
|
#define NO_USER 2
|
|
#define PRINT_REAL 4
|
|
#define NAME_NOT_NUMBER 8
|
|
|
|
extern int id_main(int argc, char **argv)
|
|
{
|
|
char user[9], group[9];
|
|
long pwnam, grnam;
|
|
int uid, gid;
|
|
int flags;
|
|
|
|
flags = bb_getopt_ulflags(argc, argv, "ugrn");
|
|
|
|
if (((flags & (NO_USER | NO_GROUP)) == (NO_USER | NO_GROUP))
|
|
|| (argc > optind + 1)
|
|
) {
|
|
bb_show_usage();
|
|
}
|
|
|
|
if (argv[optind] == NULL) {
|
|
if (flags & PRINT_REAL) {
|
|
uid = getuid();
|
|
gid = getgid();
|
|
} else {
|
|
uid = geteuid();
|
|
gid = getegid();
|
|
}
|
|
my_getpwuid(user, uid);
|
|
} else {
|
|
safe_strncpy(user, argv[optind], sizeof(user));
|
|
gid = my_getpwnamegid(user);
|
|
}
|
|
my_getgrgid(group, gid);
|
|
|
|
pwnam=my_getpwnam(user);
|
|
grnam=my_getgrnam(group);
|
|
|
|
if (flags & (NO_GROUP | NO_USER)) {
|
|
char *s = group;
|
|
if (flags & NO_GROUP) {
|
|
s = user;
|
|
grnam = pwnam;
|
|
}
|
|
if (flags & NAME_NOT_NUMBER) {
|
|
puts(s);
|
|
} else {
|
|
printf("%ld\n", grnam);
|
|
}
|
|
} else {
|
|
printf("uid=%ld(%s) gid=%ld(%s)\n", pwnam, user, grnam, group);
|
|
}
|
|
|
|
bb_fflush_stdout_and_exit(0);
|
|
}
|