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author | Lukasz Majewski <lukma@denx.de> | 2021-03-07 13:11:55 +0100 |
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committer | Lukasz Majewski <lukma@denx.de> | 2021-03-08 22:41:41 +0100 |
commit | 6905404496f47afcb2f585e4e290fe9646ca4ae3 (patch) | |
tree | a8277da3402ffff1f43474e19d661d4ac3a3ac52 /time/tst-settimeofday.c | |
parent | 6b6a151c7709d9a0da25a2d74ad73e0f78566491 (diff) | |
download | glibc-6905404496f47afcb2f585e4e290fe9646ca4ae3.tar.gz glibc-6905404496f47afcb2f585e4e290fe9646ca4ae3.tar.xz glibc-6905404496f47afcb2f585e4e290fe9646ca4ae3.zip |
tst: Add test for settimeofday
This code brings test to check if time on target machine is properly set. To avoid any issues with altering the time: - The time, which was set before the test was executed is restored. - The time is altered only when cross-test-ssh.sh is executed with --allow-time-setting flag Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'time/tst-settimeofday.c')
-rw-r--r-- | time/tst-settimeofday.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/time/tst-settimeofday.c b/time/tst-settimeofday.c new file mode 100644 index 0000000000..2c7d0c52d7 --- /dev/null +++ b/time/tst-settimeofday.c @@ -0,0 +1,55 @@ +/* Test for settimeofday + Copyright (C) 2021 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +#include <time.h> +#include <stdlib.h> +#include <sys/time.h> +#include <support/check.h> +#include <support/xtime.h> + +#define TIMESPEC_SEC_Y2038_OV 0x7FFFFFFF +#define FUTURE_TIME (TIMESPEC_SEC_Y2038_OV - 10) + +static int +do_test (void) +{ + const struct timeval tv = { FUTURE_TIME, 0}; + struct timespec tv_future, tv_now; + + /* Check if altering target time is allowed. */ + if (getenv (SETTIME_ENV_NAME) == NULL) + FAIL_UNSUPPORTED ("settimeofday is executed only when "\ + SETTIME_ENV_NAME" is set\n"); + + tv_now = xclock_now (CLOCK_REALTIME); + int ret = settimeofday (&tv, NULL); + if (ret == -1) + FAIL_EXIT1 ("settimeofday failed: %m\n"); + + tv_future = xclock_now (CLOCK_REALTIME); + + /* Restore old time value on target machine. */ + xclock_settime (CLOCK_REALTIME, (const struct timespec*) &tv_now); + + if (tv_future.tv_sec < tv.tv_sec) + FAIL_EXIT1 ("settimeofday set wrong time!\n"); + + return 0; +} + +#include <support/test-driver.c> |