t_getgroups.c revision 272343
1272343Sngie/* $NetBSD: t_getgroups.c,v 1.1 2011/07/07 06:57:53 jruoho Exp $ */ 2272343Sngie 3272343Sngie/*- 4272343Sngie * Copyright (c) 2011 The NetBSD Foundation, Inc. 5272343Sngie * All rights reserved. 6272343Sngie * 7272343Sngie * This code is derived from software contributed to The NetBSD Foundation 8272343Sngie * by Jukka Ruohonen. 9272343Sngie * 10272343Sngie * Redistribution and use in source and binary forms, with or without 11272343Sngie * modification, are permitted provided that the following conditions 12272343Sngie * are met: 13272343Sngie * 1. Redistributions of source code must retain the above copyright 14272343Sngie * notice, this list of conditions and the following disclaimer. 15272343Sngie * 2. Redistributions in binary form must reproduce the above copyright 16272343Sngie * notice, this list of conditions and the following disclaimer in the 17272343Sngie * documentation and/or other materials provided with the distribution. 18272343Sngie * 19272343Sngie * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20272343Sngie * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21272343Sngie * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22272343Sngie * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23272343Sngie * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24272343Sngie * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25272343Sngie * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26272343Sngie * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27272343Sngie * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28272343Sngie * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29272343Sngie * POSSIBILITY OF SUCH DAMAGE. 30272343Sngie */ 31272343Sngie#include <sys/cdefs.h> 32272343Sngie__RCSID("$NetBSD: t_getgroups.c,v 1.1 2011/07/07 06:57:53 jruoho Exp $"); 33272343Sngie 34272343Sngie#include <sys/wait.h> 35272343Sngie 36272343Sngie#include <atf-c.h> 37272343Sngie#include <errno.h> 38272343Sngie#include <limits.h> 39272343Sngie#include <stdlib.h> 40272343Sngie#include <string.h> 41272343Sngie#include <unistd.h> 42272343Sngie 43272343SngieATF_TC(getgroups_err); 44272343SngieATF_TC_HEAD(getgroups_err, tc) 45272343Sngie{ 46272343Sngie atf_tc_set_md_var(tc, "descr", "Test errors in getgroups(2)"); 47272343Sngie} 48272343Sngie 49272343SngieATF_TC_BODY(getgroups_err, tc) 50272343Sngie{ 51272343Sngie gid_t gidset[NGROUPS_MAX]; 52272343Sngie 53272343Sngie errno = 0; 54272343Sngie 55272343Sngie ATF_REQUIRE(getgroups(10, (gid_t *)-1) == -1); 56272343Sngie ATF_REQUIRE(errno == EFAULT); 57272343Sngie 58272343Sngie errno = 0; 59272343Sngie 60272343Sngie ATF_REQUIRE(getgroups(-1, gidset) == -1); 61272343Sngie ATF_REQUIRE(errno == EINVAL); 62272343Sngie} 63272343Sngie 64272343SngieATF_TC(getgroups_getgid); 65272343SngieATF_TC_HEAD(getgroups_getgid, tc) 66272343Sngie{ 67272343Sngie atf_tc_set_md_var(tc, "descr", "Test getgid(2) from getgroups(2)"); 68272343Sngie} 69272343Sngie 70272343SngieATF_TC_BODY(getgroups_getgid, tc) 71272343Sngie{ 72272343Sngie gid_t gidset[NGROUPS_MAX]; 73272343Sngie gid_t gid = getgid(); 74272343Sngie int i, n; 75272343Sngie 76272343Sngie /* 77272343Sngie * Check that getgid(2) is found from 78272343Sngie * the GIDs returned by getgroups(2). 79272343Sngie */ 80272343Sngie n = getgroups(NGROUPS_MAX, gidset); 81272343Sngie 82272343Sngie for (i = 0; i < n; i++) { 83272343Sngie 84272343Sngie if (gidset[i] == gid) 85272343Sngie return; 86272343Sngie } 87272343Sngie 88272343Sngie atf_tc_fail("getgid(2) not found from getgroups(2)"); 89272343Sngie} 90272343Sngie 91272343SngieATF_TC(getgroups_setgid); 92272343SngieATF_TC_HEAD(getgroups_setgid, tc) 93272343Sngie{ 94272343Sngie atf_tc_set_md_var(tc, "descr", "Test setgid(2) from getgroups(2)"); 95272343Sngie atf_tc_set_md_var(tc, "require.user", "root"); 96272343Sngie} 97272343Sngie 98272343SngieATF_TC_BODY(getgroups_setgid, tc) 99272343Sngie{ 100272343Sngie gid_t gidset[NGROUPS_MAX]; 101272343Sngie int i, n, rv, sta; 102272343Sngie pid_t pid; 103272343Sngie 104272343Sngie /* 105272343Sngie * Check that we can setgid(2) 106272343Sngie * to the returned group IDs. 107272343Sngie */ 108272343Sngie n = getgroups(NGROUPS_MAX, gidset); 109272343Sngie ATF_REQUIRE(n >= 0); 110272343Sngie 111272343Sngie for (i = 0; i < n; i++) { 112272343Sngie 113272343Sngie pid = fork(); 114272343Sngie ATF_REQUIRE(pid >= 0); 115272343Sngie 116272343Sngie if (pid == 0) { 117272343Sngie 118272343Sngie rv = setgid(gidset[i]); 119272343Sngie 120272343Sngie if (rv != 0) 121272343Sngie _exit(EXIT_FAILURE); 122272343Sngie 123272343Sngie _exit(EXIT_SUCCESS); 124272343Sngie } 125272343Sngie 126272343Sngie (void)wait(&sta); 127272343Sngie 128272343Sngie if (WIFEXITED(sta) == 0 || WEXITSTATUS(sta) != EXIT_SUCCESS) 129272343Sngie atf_tc_fail("getgroups(2) is inconsistent"); 130272343Sngie } 131272343Sngie} 132272343Sngie 133272343SngieATF_TC(getgroups_zero); 134272343SngieATF_TC_HEAD(getgroups_zero, tc) 135272343Sngie{ 136272343Sngie atf_tc_set_md_var(tc, "descr", "Test getgroups(2) with zero param"); 137272343Sngie} 138272343Sngie 139272343SngieATF_TC_BODY(getgroups_zero, tc) 140272343Sngie{ 141272343Sngie const gid_t val = 123456789; 142272343Sngie gid_t gidset[NGROUPS_MAX]; 143272343Sngie size_t i; 144272343Sngie 145272343Sngie /* 146272343Sngie * If the first parameter is zero, the number 147272343Sngie * of groups should be returned but the supplied 148272343Sngie * buffer should remain intact. 149272343Sngie */ 150272343Sngie for (i = 0; i < __arraycount(gidset); i++) 151272343Sngie gidset[i] = val; 152272343Sngie 153272343Sngie ATF_REQUIRE(getgroups(0, gidset) >= 0); 154272343Sngie 155272343Sngie for (i = 0; i < __arraycount(gidset); i++) { 156272343Sngie 157272343Sngie if (gidset[i] != val) 158272343Sngie atf_tc_fail("getgroups(2) modified the buffer"); 159272343Sngie } 160272343Sngie} 161272343Sngie 162272343SngieATF_TP_ADD_TCS(tp) 163272343Sngie{ 164272343Sngie 165272343Sngie ATF_TP_ADD_TC(tp, getgroups_err); 166272343Sngie ATF_TP_ADD_TC(tp, getgroups_getgid); 167272343Sngie ATF_TP_ADD_TC(tp, getgroups_setgid); 168272343Sngie ATF_TP_ADD_TC(tp, getgroups_zero); 169272343Sngie 170272343Sngie return atf_no_error(); 171272343Sngie} 172