openssl/test/gmdifftest.c

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/*
* Copyright 2015-2021 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <openssl/crypto.h>
#include "testutil.h"
#define SECS_PER_DAY (24 * 60 * 60)
/*
* Time checking test code. Check times are identical for a wide range of
* offsets. This should be run on a machine with 64 bit time_t or it will
* trigger the very errors the routines fix.
*/
static int check_time(long offset)
{
struct tm tm1, tm2, o1;
int off_day, off_sec;
long toffset;
time_t t1, t2;
time(&t1);
t2 = t1 + offset;
OPENSSL_gmtime(&t2, &tm2);
OPENSSL_gmtime(&t1, &tm1);
o1 = tm1;
if (!TEST_true(OPENSSL_gmtime_adj(&tm1, 0, offset))
|| !TEST_int_eq(tm1.tm_year, tm2.tm_year)
|| !TEST_int_eq(tm1.tm_mon, tm2.tm_mon)
|| !TEST_int_eq(tm1.tm_mday, tm2.tm_mday)
|| !TEST_int_eq(tm1.tm_hour, tm2.tm_hour)
|| !TEST_int_eq(tm1.tm_min, tm2.tm_min)
|| !TEST_int_eq(tm1.tm_sec, tm2.tm_sec)
|| !TEST_true(OPENSSL_gmtime_diff(&off_day, &off_sec, &o1, &tm1)))
return 0;
toffset = (long)off_day * SECS_PER_DAY + off_sec;
if (!TEST_long_eq(offset, toffset))
return 0;
return 1;
}
static int test_gmtime(int offset)
{
return check_time(offset)
&& check_time(-offset)
&& check_time(offset * 1000L)
&& check_time(-offset * 1000L)
&& check_time(offset * 1000000L)
&& check_time(-offset * 1000000L);
}
int setup_tests(void)
{
if (sizeof(time_t) < 8)
TEST_info("Skipping; time_t is less than 64-bits");
else
ADD_ALL_TESTS_NOSUBTEST(test_gmtime, 1000);
return 1;
}