forked from Minki/linux
b841065043
There is no need to keep timers tests in sync with external timers repo. Drop support for !KTEST to support for building and running timers tests without kselftest framework. Reference: https://lkml.org/lkml/2017/8/10/952 Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> Acked-by: John Stultz <john.stultz@linaro.org>
109 lines
2.3 KiB
C
109 lines
2.3 KiB
C
/* Set tz value
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* by: John Stultz <john.stultz@linaro.org>
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* (C) Copyright Linaro 2016
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* Licensed under the GPLv2
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include <sys/time.h>
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#include <sys/timex.h>
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#include <string.h>
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#include <signal.h>
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#include <unistd.h>
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#include "../kselftest.h"
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int set_tz(int min, int dst)
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{
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struct timezone tz;
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tz.tz_minuteswest = min;
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tz.tz_dsttime = dst;
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return settimeofday(0, &tz);
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}
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int get_tz_min(void)
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{
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struct timezone tz;
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struct timeval tv;
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memset(&tz, 0, sizeof(tz));
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gettimeofday(&tv, &tz);
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return tz.tz_minuteswest;
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}
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int get_tz_dst(void)
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{
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struct timezone tz;
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struct timeval tv;
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memset(&tz, 0, sizeof(tz));
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gettimeofday(&tv, &tz);
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return tz.tz_dsttime;
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}
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int main(int argc, char **argv)
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{
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int i, ret;
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int min, dst;
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min = get_tz_min();
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dst = get_tz_dst();
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printf("tz_minuteswest started at %i, dst at %i\n", min, dst);
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printf("Checking tz_minuteswest can be properly set: ");
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for (i = -15*60; i < 15*60; i += 30) {
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ret = set_tz(i, dst);
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ret = get_tz_min();
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if (ret != i) {
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printf("[FAILED] expected: %i got %i\n", i, ret);
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goto err;
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}
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}
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printf("[OK]\n");
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printf("Checking invalid tz_minuteswest values are caught: ");
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if (!set_tz(-15*60-1, dst)) {
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printf("[FAILED] %i didn't return failure!\n", -15*60-1);
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goto err;
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}
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if (!set_tz(15*60+1, dst)) {
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printf("[FAILED] %i didn't return failure!\n", 15*60+1);
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goto err;
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}
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if (!set_tz(-24*60, dst)) {
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printf("[FAILED] %i didn't return failure!\n", -24*60);
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goto err;
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}
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if (!set_tz(24*60, dst)) {
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printf("[FAILED] %i didn't return failure!\n", 24*60);
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goto err;
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}
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printf("[OK]\n");
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set_tz(min, dst);
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return ksft_exit_pass();
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err:
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set_tz(min, dst);
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return ksft_exit_fail();
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}
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