1 /* 2 * Copyright (c) 2014 Fujitsu Ltd. 3 * Author: Zeng Linggang <zenglg.jy (at) cn.fujitsu.com> 4 * 5 * This program is free software; you can redistribute it and/or modify it 6 * under the terms of version 2 of the GNU General Public License as 7 * published by the Free Software Foundation. 8 * 9 * This program is distributed in the hope that it would be useful, but 10 * WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 12 * 13 * You should have received a copy of the GNU General Public License along 14 * with this program; if not, write the Free Software Foundation, Inc., 15 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 16 */ 17 /* 18 * DESCRIPTION 19 * The calling process is not privileged and euid is not appropriate, 20 * EPERM should return. 21 */ 22 23 #include <errno.h> 24 #include <pwd.h> 25 #include "test.h" 26 #include "safe_macros.h" 27 28 char *TCID = "setegid02"; 29 int TST_TOTAL = 1; 30 static void setup(void); 31 static void setegid_verify(void); 32 static void cleanup(void); 33 34 static struct passwd *ltpuser; 35 36 int main(int argc, char *argv[]) 37 { 38 int lc; 39 40 tst_parse_opts(argc, argv, NULL, NULL); 41 42 setup(); 43 44 for (lc = 0; TEST_LOOPING(lc); lc++) { 45 tst_count = 0; 46 setegid_verify(); 47 } 48 49 cleanup(); 50 tst_exit(); 51 } 52 53 static void setup(void) 54 { 55 tst_require_root(); 56 57 tst_sig(NOFORK, DEF_HANDLER, cleanup); 58 59 TEST_PAUSE; 60 61 ltpuser = SAFE_GETPWNAM(cleanup, "nobody"); 62 63 SAFE_SETEUID(cleanup, ltpuser->pw_uid); 64 } 65 66 static void setegid_verify(void) 67 { 68 TEST(setegid(ltpuser->pw_gid)); 69 70 if (TEST_RETURN != -1) { 71 tst_resm(TFAIL, "setegid(%d) succeeded unexpectedly", 72 ltpuser->pw_gid); 73 return; 74 } 75 76 if (TEST_ERRNO == EPERM) { 77 tst_resm(TPASS | TTERRNO, "setegid failed as expected"); 78 } else { 79 tst_resm(TFAIL | TTERRNO, 80 "setegid failed unexpectedly; expected: %d - %s", 81 EPERM, strerror(EPERM)); 82 } 83 } 84 85 static void cleanup(void) 86 { 87 } 88
