conf_sap.c revision 296465 
1/* conf_sap.c */
2/*
3 * Written by Stephen Henson (steve@openssl.org) for the OpenSSL project
4 * 2001.
5 */
6/* ====================================================================
7 * Copyright (c) 2001 The OpenSSL Project.  All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 *
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in
18 *    the documentation and/or other materials provided with the
19 *    distribution.
20 *
21 * 3. All advertising materials mentioning features or use of this
22 *    software must display the following acknowledgment:
23 *    "This product includes software developed by the OpenSSL Project
24 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 *
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 *    endorse or promote products derived from this software without
28 *    prior written permission. For written permission, please contact
29 *    licensing@OpenSSL.org.
30 *
31 * 5. Products derived from this software may not be called "OpenSSL"
32 *    nor may "OpenSSL" appear in their names without prior written
33 *    permission of the OpenSSL Project.
34 *
35 * 6. Redistributions of any form whatsoever must retain the following
36 *    acknowledgment:
37 *    "This product includes software developed by the OpenSSL Project
38 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
53 *
54 * This product includes cryptographic software written by Eric Young
55 * (eay@cryptsoft.com).  This product includes software written by Tim
56 * Hudson (tjh@cryptsoft.com).
57 *
58 */
59
60#include <stdio.h>
61#include <openssl/crypto.h>
62#include "cryptlib.h"
63#include <openssl/conf.h>
64#include <openssl/dso.h>
65#include <openssl/x509.h>
66#include <openssl/asn1.h>
67#ifndef OPENSSL_NO_ENGINE
68# include <openssl/engine.h>
69#endif
70
71/*
72 * This is the automatic configuration loader: it is called automatically by
73 * OpenSSL when any of a number of standard initialisation functions are
74 * called, unless this is overridden by calling OPENSSL_no_config()
75 */
76
77static int openssl_configured = 0;
78
79void OPENSSL_config(const char *config_name)
80{
81    if (openssl_configured)
82        return;
83
84    OPENSSL_load_builtin_modules();
85#ifndef OPENSSL_NO_ENGINE
86    /* Need to load ENGINEs */
87    ENGINE_load_builtin_engines();
88#endif
89    /* Add others here? */
90
91    ERR_clear_error();
92    if (CONF_modules_load_file(NULL, config_name,
93                               CONF_MFLAGS_DEFAULT_SECTION |
94                               CONF_MFLAGS_IGNORE_MISSING_FILE) <= 0) {
95        BIO *bio_err;
96        ERR_load_crypto_strings();
97        if ((bio_err = BIO_new_fp(stderr, BIO_NOCLOSE)) != NULL) {
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
108void OPENSSL_no_config()
109{
110    openssl_configured = 1;
111}
112