1 /* 2 * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved. 3 * 4 * This program is free software; you can redistribute it and/or modify it 5 * under the terms of version 2 of the GNU General Public License as 6 * published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope that it would be useful, but 9 * WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 11 * 12 * Further, this software is distributed without any warranty that it is 13 * free of the rightful claim of any third person regarding infringement 14 * or the like. Any license provided herein, whether implied or 15 * otherwise, applies only to this software file. Patent licenses, if 16 * any, provided herein do not apply to combinations of this program with 17 * other software, or any other product whatsoever. 18 * 19 * You should have received a copy of the GNU General Public License along 20 * with this program; if not, write the Free Software Foundation, Inc., 21 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 22 * 23 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, 24 * Mountain View, CA 94043, or: 25 * 26 * http://www.sgi.com 27 * 28 * For further information regarding this notice, see: 29 * 30 * http://oss.sgi.com/projects/GenInfo/NoticeExplan/ 31 */ 32 33 /* 34 AUTHOR: Barrie Kletscher 35 Rewrote : 11-92 by Richard Logan 36 CO-PILOT: Dave Baumgartner 37 38 TEST ITEMS: 39 1. Check to see if getgroups(-1, gidset) fails and sets errno to EINVAL 40 2. Check to see if getgroups(0, gidset) does not return -1 and gidset is 41 not modified. 42 3. Check to see if getgroups(x, gigset) fails and sets errno to EINVAL, 43 where x is one less then what is returned by getgroups(0, gidset). 44 4. Check to see if getgroups() succeeds and gidset contains 45 group id returned from getgid(). 46 */ 47 48 #include <unistd.h> 49 #include <signal.h> 50 #include <string.h> 51 #include <errno.h> 52 #include <grp.h> 53 #include <sys/param.h> 54 #include <sys/types.h> 55 56 #include "test.h" 57 #include "compat_16.h" 58 59 static void setup(void); 60 static void cleanup(void); 61 62 TCID_DEFINE(getgroups01); 63 int TST_TOTAL = 4; 64 65 static GID_T gidset[NGROUPS]; 66 static GID_T cmpset[NGROUPS]; 67 68 int main(int ac, char **av) 69 { 70 int lc; 71 GID_T group; 72 int i; 73 int entries; 74 75 tst_parse_opts(ac, av, NULL, NULL); 76 77 setup(); 78 79 for (lc = 0; TEST_LOOPING(lc); lc++) { 80 81 tst_count = 0; 82 83 TEST(GETGROUPS(cleanup, -1, gidset)); 84 85 if (TEST_RETURN == 0) { 86 tst_resm(TFAIL, "getgroups succeeded unexpectedly"); 87 } else { 88 if (errno == EINVAL) 89 tst_resm(TPASS, 90 "getgroups failed as expected with EINVAL"); 91 else 92 tst_resm(TFAIL | TTERRNO, 93 "getgroups didn't fail as expected with EINVAL"); 94 } 95 96 /* 97 * Check that if ngrps is zero that the number of groups is 98 * return and the the gidset array is not modified. 99 * This is a POSIX special case. 100 */ 101 memset(gidset, 052, NGROUPS * sizeof(GID_T)); 102 memset(cmpset, 052, NGROUPS * sizeof(GID_T)); 103 104 TEST(GETGROUPS(cleanup, 0, gidset)); 105 if (TEST_RETURN == -1) { 106 tst_resm(TFAIL | TTERRNO, "getgroups failed unexpectedly"); 107 } else { 108 if (memcmp(cmpset, gidset, NGROUPS * sizeof(GID_T)) != 0) 109 tst_resm(TFAIL, 110 "getgroups modified the gidset array"); 111 else 112 tst_resm(TPASS, 113 "getgroups did not modify the gidset " 114 "array"); 115 } 116 117 /* 118 * Check to see that is -1 is returned and errno is set to 119 * EINVAL when ngroups is not big enough to hold all groups. 120 */ 121 if (TEST_RETURN <= 1) { 122 tst_resm(TCONF, 123 "getgroups returned %ld; unable to test that using ngrps >=1 but less than number of grps", 124 TEST_RETURN); 125 } else { 126 TEST(GETGROUPS(cleanup, TEST_RETURN - 1, gidset)); 127 if (TEST_RETURN == -1) { 128 if (errno == EINVAL) 129 tst_resm(TPASS, 130 "getgroups failed as " 131 "expected with EINVAL"); 132 else 133 tst_resm(TFAIL | TERRNO, 134 "getgroups didn't fail " 135 "with EINVAL"); 136 } else { 137 tst_resm(TFAIL, 138 "getgroups succeeded unexpectedly with %ld", 139 TEST_RETURN); 140 } 141 } 142 143 TEST(GETGROUPS(cleanup, NGROUPS, gidset)); 144 if ((entries = TEST_RETURN) == -1) { 145 tst_resm(TFAIL | TTERRNO, 146 "getgroups failed unexpectedly"); 147 } else { 148 149 group = getgid(); 150 151 for (i = 0; i < entries; i++) { 152 if (gidset[i] == group) { 153 tst_resm(TPASS, 154 "getgroups(NGROUPS,gidset) " 155 "returned %d contains gid %d " 156 "(from getgid)", 157 entries, group); 158 break; 159 } 160 } 161 162 if (i == entries) { 163 tst_resm(TFAIL, 164 "getgroups(NGROUPS,gidset) ret %d, does " 165 "not contain gid %d (from getgid)", 166 entries, group); 167 } 168 } 169 170 } 171 172 cleanup(); 173 tst_exit(); 174 } 175 176 static void setup(void) 177 { 178 tst_sig(FORK, DEF_HANDLER, cleanup); 179 180 TEST_PAUSE; 181 182 gid_t init_gidset[3] = {0, 1, 2}; 183 setgroups(3, init_gidset); 184 } 185 186 static void cleanup(void) 187 { 188 } 189
