1 /* 2 * Copyright 2020-2024 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 <stdio.h> 11 #include <time.h> 12 #include <openssl/asn1t.h> 13 #include "../testutil.h" 14 15 /* 16 * tweak for Windows 17 */ 18 #ifdef WIN32 19 # define timezone _timezone 20 #endif 21 22 #if defined(__FreeBSD__) || defined(__wasi__) 23 # define USE_TIMEGM 24 #endif 25 test_asn1_string_to_time_t(const char * asn1_string)26time_t test_asn1_string_to_time_t(const char *asn1_string) 27 { 28 ASN1_TIME *timestamp_asn1 = NULL; 29 struct tm *timestamp_tm = NULL; 30 #if defined(__DJGPP__) 31 char *tz = NULL; 32 #elif !defined(USE_TIMEGM) 33 time_t timestamp_local; 34 #endif 35 time_t timestamp_utc; 36 37 timestamp_asn1 = ASN1_TIME_new(); 38 if(timestamp_asn1 == NULL) 39 return -1; 40 if (!ASN1_TIME_set_string(timestamp_asn1, asn1_string)) 41 { 42 ASN1_TIME_free(timestamp_asn1); 43 return -1; 44 } 45 46 timestamp_tm = OPENSSL_malloc(sizeof(*timestamp_tm)); 47 if (timestamp_tm == NULL) { 48 ASN1_TIME_free(timestamp_asn1); 49 return -1; 50 } 51 if (!(ASN1_TIME_to_tm(timestamp_asn1, timestamp_tm))) { 52 OPENSSL_free(timestamp_tm); 53 ASN1_TIME_free(timestamp_asn1); 54 return -1; 55 } 56 ASN1_TIME_free(timestamp_asn1); 57 58 #if defined(__DJGPP__) 59 /* 60 * This is NOT thread-safe. Do not use this method for platforms other 61 * than djgpp. 62 */ 63 tz = getenv("TZ"); 64 if (tz != NULL) { 65 tz = OPENSSL_strdup(tz); 66 if (tz == NULL) { 67 OPENSSL_free(timestamp_tm); 68 return -1; 69 } 70 } 71 setenv("TZ", "UTC", 1); 72 73 timestamp_utc = mktime(timestamp_tm); 74 75 if (tz != NULL) { 76 setenv("TZ", tz, 1); 77 OPENSSL_free(tz); 78 } else { 79 unsetenv("TZ"); 80 } 81 #elif defined(USE_TIMEGM) 82 timestamp_utc = timegm(timestamp_tm); 83 #else 84 timestamp_local = mktime(timestamp_tm); 85 timestamp_utc = timestamp_local - timezone; 86 #endif 87 OPENSSL_free(timestamp_tm); 88 89 return timestamp_utc; 90 } 91
