1 /* 2 * Copyright 2002-2016 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the OpenSSL license (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 <openssl/crypto.h> 12 #include "internal/cryptlib.h" 13 #include "internal/conf.h" 14 #include <openssl/x509.h> 15 #include <openssl/asn1.h> 16 #include <openssl/engine.h> 17 18 #ifdef _WIN32 19 # define strdup _strdup 20 #endif 21 22 /* 23 * This is the automatic configuration loader: it is called automatically by 24 * OpenSSL when any of a number of standard initialisation functions are 25 * called, unless this is overridden by calling OPENSSL_no_config() 26 */ 27 28 static int openssl_configured = 0; 29 30 #if OPENSSL_API_COMPAT < 0x10100000L 31 void OPENSSL_config(const char *appname) 32 { 33 OPENSSL_INIT_SETTINGS settings; 34 35 memset(&settings, 0, sizeof(settings)); 36 if (appname != NULL) 37 settings.appname = strdup(appname); 38 OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CONFIG, &settings); 39 } 40 #endif 41 42 void openssl_config_int(const char *appname) 43 { 44 if (openssl_configured) 45 return; 46 47 OPENSSL_load_builtin_modules(); 48 #ifndef OPENSSL_NO_ENGINE 49 /* Need to load ENGINEs */ 50 ENGINE_load_builtin_engines(); 51 #endif 52 ERR_clear_error(); 53 #ifndef OPENSSL_SYS_UEFI 54 CONF_modules_load_file(NULL, appname, 55 CONF_MFLAGS_DEFAULT_SECTION | 56 CONF_MFLAGS_IGNORE_MISSING_FILE); 57 #endif 58 openssl_configured = 1; 59 } 60 61 void openssl_no_config_int(void) 62 { 63 openssl_configured = 1; 64 } 65