1 /* 2 * Copyright 2002-2023 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 <stdio.h> 11 #include <openssl/crypto.h> 12 #include "internal/cryptlib.h" 13 #include "internal/conf.h" 14 #include "conf_local.h" 15 #include <openssl/x509.h> 16 #include <openssl/asn1.h> 17 #include <openssl/engine.h> 18 19 #if defined(_WIN32) && !defined(__BORLANDC__) 20 # define strdup _strdup 21 #endif 22 23 /* 24 * This is the automatic configuration loader: it is called automatically by 25 * OpenSSL when any of a number of standard initialisation functions are 26 * called, unless this is overridden by calling OPENSSL_no_config() 27 */ 28 29 static int openssl_configured = 0; 30 31 #ifndef OPENSSL_NO_DEPRECATED_1_1_0 32 void OPENSSL_config(const char *appname) 33 { 34 OPENSSL_INIT_SETTINGS settings; 35 36 memset(&settings, 0, sizeof(settings)); 37 if (appname != NULL) 38 settings.appname = strdup(appname); 39 settings.flags = DEFAULT_CONF_MFLAGS; 40 OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CONFIG, &settings); 41 } 42 #endif 43 44 int ossl_config_int(const OPENSSL_INIT_SETTINGS *settings) 45 { 46 int ret = 0; 47 #if defined(OPENSSL_INIT_DEBUG) || !defined(OPENSSL_SYS_UEFI) 48 const char *filename; 49 const char *appname; 50 unsigned long flags; 51 #endif 52 53 if (openssl_configured) 54 return 1; 55 56 #if defined(OPENSSL_INIT_DEBUG) || !defined(OPENSSL_SYS_UEFI) 57 filename = settings ? settings->filename : NULL; 58 appname = settings ? settings->appname : NULL; 59 flags = settings ? settings->flags : DEFAULT_CONF_MFLAGS; 60 #endif 61 62 #ifdef OPENSSL_INIT_DEBUG 63 fprintf(stderr, "OPENSSL_INIT: ossl_config_int(%s, %s, %lu)\n", 64 filename, appname, flags); 65 #endif 66 67 #ifndef OPENSSL_SYS_UEFI 68 ret = CONF_modules_load_file_ex(OSSL_LIB_CTX_get0_global_default(), 69 filename, appname, flags); 70 #else 71 ret = 1; 72 #endif 73 openssl_configured = 1; 74 return ret; 75 } 76 77 void ossl_no_config_int(void) 78 { 79 openssl_configured = 1; 80 } 81