1 /* Copyright (c) 2007 The NetBSD Foundation, Inc. 2 * All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND 14 * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, 15 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 16 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY 18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 20 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 21 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 22 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 23 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 24 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ 25 26 #include "atf-c/detail/user.h" 27 28 #include <sys/param.h> 29 #include <sys/types.h> 30 #include <limits.h> 31 #include <unistd.h> 32 33 #include "atf-c/detail/sanity.h" 34 35 /* --------------------------------------------------------------------- 36 * Free functions. 37 * --------------------------------------------------------------------- */ 38 39 uid_t 40 atf_user_euid(void) 41 { 42 return geteuid(); 43 } 44 45 bool 46 atf_user_is_member_of_group(gid_t gid) 47 { 48 static gid_t groups[NGROUPS_MAX]; 49 static int ngroups = -1; 50 bool found; 51 int i; 52 53 if (ngroups == -1) { 54 ngroups = getgroups(NGROUPS_MAX, groups); 55 INV(ngroups >= 0); 56 } 57 58 found = false; 59 for (i = 0; !found && i < ngroups; i++) 60 if (groups[i] == gid) 61 found = true; 62 return found; 63 } 64 65 bool 66 atf_user_is_root(void) 67 { 68 return geteuid() == 0; 69 } 70 71 bool 72 atf_user_is_unprivileged(void) 73 { 74 return geteuid() != 0; 75 } 76