1 /* 2 * Copyright 2022-2023 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the Apache License 2.0 (the "License"). You may not use 5 * this file except in compliance with the License. You can obtain a copy 6 * in the file LICENSE in the source distribution or at 7 * https://www.openssl.org/source/license.html 8 */ 9 10 #include <errno.h> 11 #include <openssl/err.h> 12 #include "internal/time.h" 13 #include "internal/e_os.h" 14 ossl_time_now(void)15OSSL_TIME ossl_time_now(void) 16 { 17 OSSL_TIME r; 18 19 #if defined(_WIN32) && !defined(OPENSSL_SYS_UEFI) 20 SYSTEMTIME st; 21 union { 22 unsigned __int64 ul; 23 FILETIME ft; 24 } now; 25 26 GetSystemTime(&st); 27 SystemTimeToFileTime(&st, &now.ft); 28 /* re-bias to 1/1/1970 */ 29 # ifdef __MINGW32__ 30 now.ul -= 116444736000000000ULL; 31 # else 32 now.ul -= 116444736000000000UI64; 33 # endif 34 r.t = ((uint64_t)now.ul) * (OSSL_TIME_SECOND / 10000000); 35 #else /* defined(_WIN32) */ 36 struct timeval t; 37 38 if (gettimeofday(&t, NULL) < 0) { 39 ERR_raise_data(ERR_LIB_SYS, get_last_sys_error(), 40 "calling gettimeofday()"); 41 return ossl_time_zero(); 42 } 43 if (t.tv_sec <= 0) 44 r.t = t.tv_usec <= 0 ? 0 : t.tv_usec * OSSL_TIME_US; 45 else 46 r.t = ((uint64_t)t.tv_sec * 1000000 + t.tv_usec) * OSSL_TIME_US; 47 #endif /* defined(_WIN32) */ 48 return r; 49 } 50
