openssl/ssl/time.c
Pauli d6bfdf6789 ssl: expose the get time function internally
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18274)
2022-06-22 13:05:40 +10:00

47 lines
1.2 KiB
C

/*
* Copyright 2022 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 <errno.h>
#include <openssl/err.h>
#include "internal/time.h"
OSSL_TIME ossl_time_now(void)
{
#if defined(_WIN32)
SYSTEMTIME st;
union {
unsigned __int64 ul;
FILETIME ft;
} now;
GetSystemTime(&st);
SystemTimeToFileTime(&st, &now.ft);
/* re-bias to 1/1/1970 */
# ifdef __MINGW32__
now.ul -= 116444736000000000ULL;
# else
now.ul -= 116444736000000000UI64;
# endif
return ((uint64_t)now.ul) * (OSSL_TIME_SECOND / 10000000);
#else
struct timeval t;
if (gettimeofday(&t, NULL) < 0) {
ERR_raise_data(ERR_LIB_SYS, get_last_sys_error(),
"calling gettimeofday()");
return 0;
}
if (t.tv_sec <= 0)
return t.tv_usec <= 0 ? 0 : t.tv_usec * (OSSL_TIME_SECOND / 1000000);
return ((uint64_t)t.tv_sec * 1000000 + t.tv_usec)
* (OSSL_TIME_SECOND / 1000000);
#endif
}