1 /* $OpenBSD: t_getgroups.c,v 1.1.1.1 2019/11/19 19:57:03 bluhm Exp $ */ 2 /* $NetBSD: t_getgroups.c,v 1.1 2011/07/07 06:57:53 jruoho Exp $ */ 3 4 /*- 5 * Copyright (c) 2011 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Jukka Ruohonen. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include "macros.h" 34 35 #include <sys/cdefs.h> 36 __RCSID("$NetBSD: t_getgroups.c,v 1.1 2011/07/07 06:57:53 jruoho Exp $"); 37 38 #include <sys/wait.h> 39 40 #include "atf-c.h" 41 #include <errno.h> 42 #include <limits.h> 43 #include <stdlib.h> 44 #include <string.h> 45 #include <unistd.h> 46 47 ATF_TC(getgroups_err); 48 ATF_TC_HEAD(getgroups_err, tc) 49 { 50 atf_tc_set_md_var(tc, "descr", "Test errors in getgroups(2)"); 51 } 52 53 ATF_TC_BODY(getgroups_err, tc) 54 { 55 gid_t gidset[NGROUPS_MAX]; 56 57 errno = 0; 58 59 ATF_REQUIRE(getgroups(NGROUPS_MAX, (gid_t *)-1) == -1); 60 ATF_REQUIRE(errno == EFAULT); 61 62 errno = 0; 63 64 ATF_REQUIRE(getgroups(-1, gidset) == -1); 65 ATF_REQUIRE(errno == EINVAL); 66 } 67 68 ATF_TC(getgroups_getgid); 69 ATF_TC_HEAD(getgroups_getgid, tc) 70 { 71 atf_tc_set_md_var(tc, "descr", "Test getgid(2) from getgroups(2)"); 72 } 73 74 ATF_TC_BODY(getgroups_getgid, tc) 75 { 76 gid_t gidset[NGROUPS_MAX]; 77 gid_t gid = getgid(); 78 int i, n; 79 80 /* 81 * Check that getgid(2) is found from 82 * the GIDs returned by getgroups(2). 83 */ 84 n = getgroups(NGROUPS_MAX, gidset); 85 86 for (i = 0; i < n; i++) { 87 88 if (gidset[i] == gid) 89 return; 90 } 91 92 atf_tc_fail("getgid(2) not found from getgroups(2)"); 93 } 94 95 ATF_TC(getgroups_setgid); 96 ATF_TC_HEAD(getgroups_setgid, tc) 97 { 98 atf_tc_set_md_var(tc, "descr", "Test setgid(2) from getgroups(2)"); 99 atf_tc_set_md_var(tc, "require.user", "root"); 100 } 101 102 ATF_TC_BODY(getgroups_setgid, tc) 103 { 104 gid_t gidset[NGROUPS_MAX]; 105 int i, n, rv, sta; 106 pid_t pid; 107 108 /* 109 * Check that we can setgid(2) 110 * to the returned group IDs. 111 */ 112 n = getgroups(NGROUPS_MAX, gidset); 113 ATF_REQUIRE(n >= 0); 114 115 for (i = 0; i < n; i++) { 116 117 pid = fork(); 118 ATF_REQUIRE(pid >= 0); 119 120 if (pid == 0) { 121 122 rv = setgid(gidset[i]); 123 124 if (rv != 0) 125 _exit(EXIT_FAILURE); 126 127 _exit(EXIT_SUCCESS); 128 } 129 130 (void)wait(&sta); 131 132 if (WIFEXITED(sta) == 0 || WEXITSTATUS(sta) != EXIT_SUCCESS) 133 atf_tc_fail("getgroups(2) is inconsistent"); 134 } 135 } 136 137 ATF_TC(getgroups_zero); 138 ATF_TC_HEAD(getgroups_zero, tc) 139 { 140 atf_tc_set_md_var(tc, "descr", "Test getgroups(2) with zero param"); 141 } 142 143 ATF_TC_BODY(getgroups_zero, tc) 144 { 145 const gid_t val = 123456789; 146 gid_t gidset[NGROUPS_MAX]; 147 size_t i; 148 149 /* 150 * If the first parameter is zero, the number 151 * of groups should be returned but the supplied 152 * buffer should remain intact. 153 */ 154 for (i = 0; i < __arraycount(gidset); i++) 155 gidset[i] = val; 156 157 ATF_REQUIRE(getgroups(0, gidset) >= 0); 158 159 for (i = 0; i < __arraycount(gidset); i++) { 160 161 if (gidset[i] != val) 162 atf_tc_fail("getgroups(2) modified the buffer"); 163 } 164 } 165 166 ATF_TP_ADD_TCS(tp) 167 { 168 169 ATF_TP_ADD_TC(tp, getgroups_err); 170 ATF_TP_ADD_TC(tp, getgroups_getgid); 171 ATF_TP_ADD_TC(tp, getgroups_setgid); 172 ATF_TP_ADD_TC(tp, getgroups_zero); 173 174 return atf_no_error(); 175 } 176