| /* |
| * Copyright (c) Wipro Technologies Ltd, 2002. All Rights Reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of version 2 of the GNU General Public License as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it would be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| * |
| */ |
| /********************************************************** |
| * |
| * TEST IDENTIFIER : setdomainname03 |
| * |
| * EXECUTED BY : root / superuser |
| * |
| * TEST TITLE : test for EPERM error value when run as non superuser |
| * |
| * TEST CASE TOTAL : 1 |
| * |
| * AUTHOR : Saji Kumar.V.R <saji.kumar@wipro.com> |
| * |
| * SIGNALS |
| * Uses SIGUSR1 to pause before test if option set. |
| * (See the parse_opts(3) man page). |
| * |
| * DESCRIPTION |
| * Verify that, setdomainname(2) returns -1 and sets errno to EPERM |
| * if the effective user id of the caller is not super-user. |
| * |
| * Algorithm: |
| * Setup: |
| * Setup signal handling. |
| * Pause for SIGUSR1 if option specified. |
| * save current domainname |
| * change effective user id to "nobody" user |
| * |
| * Test: |
| * Loop if the proper options are given. |
| * Execute system call |
| * Check return code, Check return code, if (system call failed (return=-1)) & |
| * (errno set == expected errno) |
| * Issue sys call fails with expected return value and errno. |
| * Otherwise, |
| * Issue sys call fails with unexpected errno. |
| * Otherwise, |
| * Issue sys call returns unexpected value. |
| * |
| * Cleanup: |
| * Change effective user id to root |
| * Restore old domainname |
| * Print errno log and/or timing stats if options given |
| * |
| * Usage: <for command-line> |
| * setdomainname03 [-c n] [-e] [-i n] [-I x] [-P x] [-t] [-h] [-f] [-p] |
| * where, -c n : Run n copies concurrently. |
| * -e : Turn on errno logging. |
| * -h : Show help screen |
| * -f : Turn off functional testing |
| * -i n : Execute test n times. |
| * -I x : Execute test for x seconds. |
| * -p : Pause for SIGUSR1 before starting |
| * -P x : Pause for x seconds between iterations. |
| * -t : Turn on syscall timing. |
| * |
| ****************************************************************/ |
| |
| #include <string.h> |
| #include <errno.h> |
| #include <pwd.h> |
| #include <linux/utsname.h> |
| |
| #include "test.h" |
| |
| #define MAX_NAME_LEN __NEW_UTS_LEN |
| |
| char *TCID = "setdomainname03"; |
| int TST_TOTAL = 1; |
| |
| static char nobody_uid[] = "nobody"; |
| struct passwd *ltpuser; |
| |
| static char test_domain_name[MAX_NAME_LEN] = "test_dom"; |
| static char old_domain_name[MAX_NAME_LEN]; |
| |
| static void setup(); /* setup function for the tests */ |
| static void cleanup(); /* cleanup function for the tests */ |
| |
| int main(int ac, char **av) |
| { |
| int lc; |
| const char *msg; |
| |
| msg = parse_opts(ac, av, NULL, NULL); |
| if (msg != NULL) { |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| |
| } |
| |
| /* |
| * Invoke setup function to call individual test setup functions |
| * for the test which run as root/super-user. |
| */ |
| setup(); |
| |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| |
| tst_count = 0; |
| |
| /* |
| * Call setdomainname(2) |
| */ |
| TEST(setdomainname(test_domain_name, MAX_NAME_LEN)); |
| if ((TEST_RETURN == -1) && (TEST_ERRNO == EPERM)) { |
| tst_resm(TPASS, "expected failure; Got EPERM"); |
| } else { |
| tst_resm(TFAIL, "Call failed to produce " |
| "expected error; Expected errno: %d " |
| "Got : %d, %s", EPERM, TEST_ERRNO, |
| strerror(TEST_ERRNO)); |
| } |
| |
| } |
| |
| /* |
| * Invoke cleanup() to delete the test directories created |
| * in the setup(). |
| */ |
| cleanup(); |
| tst_exit(); |
| |
| } |
| |
| /* |
| * setup(void) - performs all ONE TIME setup for this test. |
| */ |
| void setup(void) |
| { |
| tst_require_root(NULL); |
| |
| /* Capture unexpected signals */ |
| tst_sig(NOFORK, DEF_HANDLER, cleanup); |
| |
| /* Switch to nobody user for correct error code collection */ |
| if ((ltpuser = getpwnam(nobody_uid)) == NULL) { |
| tst_brkm(TBROK, NULL, "\"nobody\" user not present"); |
| } |
| if (seteuid(ltpuser->pw_uid) == -1) { |
| tst_resm(TWARN, "seteuid failed to " |
| "to set the effective uid to %d", ltpuser->pw_uid); |
| perror("seteuid"); |
| } |
| |
| /* Save current domainname */ |
| if ((getdomainname(old_domain_name, MAX_NAME_LEN)) < 0) { |
| tst_brkm(TBROK, NULL, "getdomainname() failed while" |
| " getting current domain name"); |
| } |
| |
| TEST_PAUSE; |
| |
| } |
| |
| /* |
| * cleanup() - Performs all ONE TIME cleanup for this test at |
| */ |
| void cleanup(void) |
| { |
| |
| /* Set effective user id back to root */ |
| if (seteuid(0) == -1) { |
| tst_resm(TWARN, "seteuid failed to " |
| "to set the effective uid to root"); |
| perror("seteuid"); |
| } |
| |
| /* Restore domain name */ |
| if ((setdomainname(old_domain_name, strlen(old_domain_name))) |
| < 0) { |
| tst_resm(TWARN, "setdomainname() failed while restoring" |
| " domainname to \"%s\"", old_domain_name); |
| } |
| |
| } |