| /* |
| * |
| * Copyright (c) International Business Machines Corp., 2001 |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| * the GNU General Public License for more details. |
| * |
| * 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 Name: stime01 |
| * |
| * Test Description: |
| * Verify that the system call stime() successfully sets the system's idea |
| * of date and time if invoked by "root" user. |
| * |
| * Expected Result: |
| * stime() should succeed to set the system data/time to the specified time. |
| * |
| * Algorithm: |
| * Setup: |
| * Setup signal handling. |
| * Pause for SIGUSR1 if option specified. |
| * |
| * Test: |
| * Loop if the proper options are given. |
| * Execute system call |
| * Check return code, if system call failed (return=-1) |
| * Log the errno and Issue a FAIL message. |
| * Otherwise, |
| * Verify the Functionality of system call |
| * if successful, |
| * Issue Functionality-Pass message. |
| * Otherwise, |
| * Issue Functionality-Fail message. |
| * Cleanup: |
| * Print errno log and/or timing stats if options given |
| * |
| * Usage: <for command-line> |
| * stime01 [-c n] [-e] [-f] [-i n] [-I x] [-p x] [-t] |
| * where, -c n : Run n copies concurrently. |
| * -e : Turn on errno logging. |
| * -f : Turn off functionality Testing. |
| * -i n : Execute test n times. |
| * -I x : Execute test for x seconds. |
| * -P x : Pause for x seconds between iterations. |
| * -t : Turn on syscall timing. |
| * |
| * History |
| * 07/2001 John George |
| * -Ported |
| * |
| * Restrictions: |
| * This test should be run by 'super-user' (root) only. |
| * |
| */ |
| |
| #include <stdio.h> |
| #include <unistd.h> |
| #include <sys/types.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <time.h> |
| #include <string.h> |
| #include <sys/stat.h> |
| #include <signal.h> |
| #include <sys/time.h> |
| |
| #include "test.h" |
| |
| #define INCR_TIME 30 /* increment in the system's current time */ |
| |
| #define BASH_CLOCK |
| |
| char *TCID = "stime01"; |
| int TST_TOTAL = 1; |
| struct timeval real_time_tv, pres_time_tv; |
| time_t new_time; |
| |
| void setup(); /* Main setup function of test */ |
| void cleanup(); /* cleanup function for the test */ |
| |
| 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); |
| |
| } |
| |
| setup(); |
| |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| |
| /* |
| * ``Break`` the clock. |
| * |
| * This is being done inline here so that the offset is |
| * automatically reset based on the elapsed time, and not a |
| * fixed time sampled once in setup. |
| * |
| * The big assumption here is the clock state isn't super |
| * fubared if so, the executing party needs to go fix their |
| * RTC's battery, or they have more pressing issues to attend |
| * to as far as clock skew is concerned :P. |
| */ |
| if (gettimeofday(&real_time_tv, NULL) < 0) { |
| tst_brkm(TBROK | TERRNO, NULL, |
| "failed to get current time via gettimeofday(2)"); |
| } |
| |
| /* Get the system's new time */ |
| new_time = real_time_tv.tv_sec + INCR_TIME; |
| |
| tst_count = 0; |
| |
| /* |
| * Invoke stime(2) to set the system's time to the specified |
| * new_time. |
| */ |
| if (stime(&new_time) < 0) { |
| tst_resm(TFAIL | TERRNO, "stime(%ld) failed", new_time); |
| } else { |
| |
| /* |
| * Get the system's current time after call |
| * to stime(). |
| */ |
| if (gettimeofday(&pres_time_tv, NULL) < 0) { |
| tst_brkm(TFAIL | TERRNO, cleanup, |
| "time() failed to get " |
| "system's time after stime"); |
| } |
| |
| /* Now do the actual verification */ |
| switch (pres_time_tv.tv_sec - new_time) { |
| case 0: |
| case 1: |
| tst_resm(TINFO, "pt.tv_sec: %ld", |
| pres_time_tv.tv_sec); |
| tst_resm(TPASS, "system time was set " |
| "to %ld", new_time); |
| break; |
| default: |
| tst_resm(TFAIL, "system time was not " |
| "set to %ld (time is " |
| "actually: %ld)", |
| new_time, pres_time_tv.tv_sec); |
| } |
| |
| if (settimeofday(&real_time_tv, NULL) < 0) { |
| tst_resm(TBROK | TERRNO, |
| "failed to restore time to original " |
| "value; system clock may need to be " |
| "fixed manually"); |
| } |
| |
| } |
| |
| } |
| |
| cleanup(); |
| tst_exit(); |
| |
| } |
| |
| /* |
| * void |
| * setup() - performs all ONE TIME setup for this test. |
| * Get the current time and system's new time to be set in the test. |
| */ |
| void setup(void) |
| { |
| tst_require_root(NULL); |
| |
| TEST_PAUSE; |
| |
| } |
| |
| /* |
| * void |
| * cleanup() - performs all ONE TIME cleanup for this test at |
| * completion or premature exit. |
| */ |
| void cleanup(void) |
| { |
| |
| /* Restore the original system time. */ |
| if (settimeofday(&real_time_tv, NULL) != 0) { |
| tst_resm(TBROK | TERRNO, "failed to restore time to original " |
| "value; system clock may need to be " |
| "fixed manually"); |
| } |
| |
| } |