crypto/conf/conf_sap.c

   1 /*
   2  * Copyright 2002-2016 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 <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_1_1_0
  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 int openssl_config_int(const OPENSSL_INIT_SETTINGS *settings)
  43 {
  44     int ret;
  45     const char *filename;
  46     const char *appname;
  47     unsigned long flags;
  48
  49     if (openssl_configured)
  50         return 1;
  51
  52     filename = settings ? settings->filename : NULL;
  53     appname = settings ? settings->appname : NULL;
  54     flags = settings ? settings->flags : DEFAULT_CONF_MFLAGS;
  55
  56 #ifdef OPENSSL_INIT_DEBUG
  57     fprintf(stderr, "OPENSSL_INIT: openssl_config_int(%s, %s, %lu)\n",
  58             filename, appname, flags);
  59 #endif
  60
  61     OPENSSL_load_builtin_modules();
  62 #ifndef OPENSSL_NO_ENGINE
  63     /* Need to load ENGINEs */
  64     ENGINE_load_builtin_engines();
  65 #endif
  66     ERR_clear_error();
  67 #ifndef OPENSSL_SYS_UEFI
  68     ret = CONF_modules_load_file(filename, appname, flags);
  69 #endif
  70     openssl_configured = 1;
  71     return ret;
  72 }
  73
  74 void openssl_no_config_int(void)
  75 {
  76     openssl_configured = 1;
  77 }