2 * Copyright (c) 2015 Nathan Holstein <nathan.holstein@gmail.com>
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 #include <sys/resource.h>
19 #include <sys/types.h>
28 setusercontext(login_cap_t *lc, struct passwd *pw, uid_t uid, unsigned int flags)
32 if (lc != NULL || pw == NULL ||
33 (flags & ~(LOGIN_SETGROUP | LOGIN_SETPRIORITY |
34 LOGIN_SETRESOURCES | LOGIN_SETUMASK |
35 LOGIN_SETUSER)) != 0) {
40 if (flags & LOGIN_SETGROUP) {
41 if ((ret = setgid(pw->pw_gid)) != 0)
43 if ((ret = initgroups(pw->pw_name, pw->pw_gid)) != 0)
47 if (flags & LOGIN_SETPRIORITY) {
48 if ((ret = setpriority(PRIO_PROCESS, getpid(), 0)) != 0)
50 if ((ret = setpriority(PRIO_USER, uid, 0)) != 0)
54 if (flags & LOGIN_SETRESOURCES) {
57 if (flags & LOGIN_SETUMASK)
58 umask(S_IWGRP | S_IWOTH);
60 if (flags & LOGIN_SETUSER)