51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
/* Test of getting the boot time.
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Copyright (C) 2023-2024 Free Software Foundation, Inc.
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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 3 of the License, or
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(at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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/* Written by Bruno Haible <bruno@clisp.org>, 2023. */
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#include <config.h>
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#include "boot-time.h"
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#include <stddef.h>
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#include <stdio.h>
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#include <time.h>
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#include "macros.h"
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int
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main (int argc, char *argv[])
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{
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struct timespec boot_time;
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ASSERT (get_boot_time (&boot_time) == 0);
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time_t tim = boot_time.tv_sec;
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struct tm *gmt = gmtime (&tim);
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ASSERT (gmt != NULL);
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char timbuf[100];
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ASSERT (strftime (timbuf, sizeof (timbuf), "%Y-%m-%d %H:%M:%S", gmt) > 0);
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printf ("Boot time (UTC): %s.%09ld\n", timbuf, (long) boot_time.tv_nsec);
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/* If the boot time is more than 5 years in the past or more than a week
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in the future, the value must be wrong. */
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time_t now = time (NULL);
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ASSERT (tim >= now - 157680000);
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ASSERT (tim <= now + 604800);
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return test_exit_status;
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}
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