1 /* 2 * Copyright (c) International Business Machines Corp., 2001 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License as published by 6 * the Free Software Foundation; either version 2 of the License, or 7 * (at your option) any later version. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See 12 * the GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, write to the Free Software 16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 17 * 18 * Ported by John George 19 */ 20 21 /* 22 * Test that EPERM is set when setreuid is given an invalid user id. 23 */ 24 25 #include <wait.h> 26 #include <limits.h> 27 #include <signal.h> 28 #include <errno.h> 29 #include <unistd.h> 30 #include <pwd.h> 31 #include <sys/param.h> 32 #include <sys/types.h> 33 #include <sys/stat.h> 34 35 #include "test.h" 36 #include "compat_16.h" 37 38 #define INVAL_USER (USHRT_MAX-2) 39 40 TCID_DEFINE(setreuid06); 41 int TST_TOTAL = 1; 42 43 static struct passwd *ltpuser; 44 45 static void setup(void); 46 static void cleanup(void); 47 48 int main(int argc, char **argv) 49 { 50 int lc; 51 52 tst_parse_opts(argc, argv, NULL, NULL); 53 54 setup(); 55 56 for (lc = 0; TEST_LOOPING(lc); lc++) { 57 tst_count = 0; 58 59 TEST(SETREUID(cleanup, -1, INVAL_USER)); 60 if (TEST_RETURN != -1) { 61 tst_resm(TFAIL, "%s did not fail as expected", TCID); 62 } else if (TEST_ERRNO == EPERM) { 63 tst_resm(TPASS, "setreuid set errno to EPERM as " 64 "expected"); 65 } else { 66 tst_resm(TFAIL, "setreuid FAILED, expected 1 but " 67 "returned %d", TEST_ERRNO); 68 } 69 70 } 71 cleanup(); 72 tst_exit(); 73 } 74 75 static void setup(void) 76 { 77 tst_require_root(); 78 79 tst_sig(FORK, DEF_HANDLER, cleanup); 80 81 umask(0); 82 83 ltpuser = getpwnam("nobody"); 84 if (ltpuser == NULL) 85 tst_brkm(TBROK, NULL, "nobody must be a valid user."); 86 87 if (setuid(ltpuser->pw_uid) == -1) 88 tst_brkm(TBROK | TERRNO, NULL, "setuid failed to " 89 "to set the effective uid to %d", ltpuser->pw_uid); 90 91 TEST_PAUSE; 92 } 93 94 static void cleanup(void) 95 { 96 } 97
