crypto/conf/conf_sap.c

   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 }