crypto/conf/conf_sap.c

   1 /*
   2  * Written by Stephen Henson (steve@openssl.org) for the OpenSSL project
   3  * 2001.
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 2001 The OpenSSL Project.  All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in
  17  *    the documentation and/or other materials provided with the
  18  *    distribution.
  19  *
  20  * 3. All advertising materials mentioning features or use of this
  21  *    software must display the following acknowledgment:
  22  *    "This product includes software developed by the OpenSSL Project
  23  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  24  *
  25  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  26  *    endorse or promote products derived from this software without
  27  *    prior written permission. For written permission, please contact
  28  *    licensing@OpenSSL.org.
  29  *
  30  * 5. Products derived from this software may not be called "OpenSSL"
  31  *    nor may "OpenSSL" appear in their names without prior written
  32  *    permission of the OpenSSL Project.
  33  *
  34  * 6. Redistributions of any form whatsoever must retain the following
  35  *    acknowledgment:
  36  *    "This product includes software developed by the OpenSSL Project
  37  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  38  *
  39  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  40  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  41  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  42  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  43  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  44  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  45  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  46  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  48  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  49  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  50  * OF THE POSSIBILITY OF SUCH DAMAGE.
  51  * ====================================================================
  52  *
  53  * This product includes cryptographic software written by Eric Young
  54  * (eay@cryptsoft.com).  This product includes software written by Tim
  55  * Hudson (tjh@cryptsoft.com).
  56  *
  57  */
  58
  59 #include <stdio.h>
  60 #include <openssl/crypto.h>
  61 #include "internal/cryptlib.h"
  62 #include <internal/conf.h>
  63 #include <openssl/dso.h>
  64 #include <openssl/x509.h>
  65 #include <openssl/asn1.h>
  66 #ifndef OPENSSL_NO_ENGINE
  67 # include <openssl/engine.h>
  68 #endif
  69
  70 /*
  71  * This is the automatic configuration loader: it is called automatically by
  72  * OpenSSL when any of a number of standard initialisation functions are
  73  * called, unless this is overridden by calling OPENSSL_no_config()
  74  */
  75
  76 static int openssl_configured = 0;
  77
  78 void OPENSSL_config(const char *config_name)
  79 {
  80     OPENSSL_INIT_SETTINGS settings[2];
  81
  82     settings[0].name = OPENSSL_INIT_SET_CONF_FILENAME;
  83     settings[0].value.type_string = config_name;
  84     settings[1].name = OPENSSL_INIT_SET_END;
  85     settings[1].value.type_int = 0;
  86     OPENSSL_INIT_crypto_library_start(OPENSSL_INIT_LOAD_CONFIG, settings);
  87 }
  88
  89 void openssl_config_internal(const char *config_name)
  90 {
  91     if (openssl_configured)
  92         return;
  93
  94     OPENSSL_load_builtin_modules();
  95 #ifndef OPENSSL_NO_ENGINE
  96     /* Need to load ENGINEs */
  97     ENGINE_load_builtin_engines();
  98 #endif
  99     ERR_clear_error();
 100 #ifndef OPENSSL_SYS_UEFI
 101     CONF_modules_load_file(NULL, config_name,
 102                                CONF_MFLAGS_DEFAULT_SECTION |
 103                                CONF_MFLAGS_IGNORE_MISSING_FILE);
 104 #endif
 105     openssl_configured = 1;
 106 }
 107
 108 void openssl_no_config_internal(void)
 109 {
 110     openssl_configured = 1;
 111 }