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      1 /* conf_sap.c */
      2 /* Written by Stephen Henson (steve (at) openssl.org) for the OpenSSL
      3  * project 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 (at) 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 (at) cryptsoft.com).  This product includes software written by Tim
     55  * Hudson (tjh (at) cryptsoft.com).
     56  *
     57  */
     58 
     59 #include <stdio.h>
     60 #include <openssl/crypto.h>
     61 #include "cryptlib.h"
     62 #include <openssl/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 /* This is the automatic configuration loader: it is called automatically by
     71  * OpenSSL when any of a number of standard initialisation functions are called,
     72  * unless this is overridden by calling OPENSSL_no_config()
     73  */
     74 
     75 static int openssl_configured = 0;
     76 
     77 void OPENSSL_config(const char *config_name)
     78 	{
     79 	if (openssl_configured)
     80 		return;
     81 
     82 	OPENSSL_load_builtin_modules();
     83 #ifndef OPENSSL_NO_ENGINE
     84 	/* Need to load ENGINEs */
     85 	ENGINE_load_builtin_engines();
     86 #endif
     87 	/* Add others here? */
     88 
     89 
     90 	ERR_clear_error();
     91 	if (CONF_modules_load_file(NULL, config_name,
     92 	CONF_MFLAGS_DEFAULT_SECTION|CONF_MFLAGS_IGNORE_MISSING_FILE) <= 0)
     93 		{
     94 		BIO *bio_err;
     95 		ERR_load_crypto_strings();
     96 		if ((bio_err=BIO_new_fp(stderr, BIO_NOCLOSE)) != NULL)
     97 			{
     98 			BIO_printf(bio_err,"Auto configuration failed\n");
     99 			ERR_print_errors(bio_err);
    100 			BIO_free(bio_err);
    101 			}
    102 		exit(1);
    103 		}
    104 
    105 	return;
    106 	}
    107 
    108 void OPENSSL_no_config()
    109 	{
    110 	openssl_configured = 1;
    111 	}
    112