/* conf_lib.c */

 /* Written by Richard Levitte (richard@levitte.org) for the OpenSSL

  * project 2000.

  */

 /* ====================================================================

  * Copyright (c) 2000 The OpenSSL Project.  All rights reserved.

  *

  * Redistribution and use in source and binary forms, with or without

  * modification, are permitted provided that the following conditions

  * are met:

  *

  * 1. Redistributions of source code must retain the above copyright

  *    notice, this list of conditions and the following disclaimer. 

  *

  * 2. Redistributions in binary form must reproduce the above copyright

  *    notice, this list of conditions and the following disclaimer in

  *    the documentation and/or other materials provided with the

  *    distribution.

  *

  * 3. All advertising materials mentioning features or use of this

  *    software must display the following acknowledgment:

  *    "This product includes software developed by the OpenSSL Project

  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"

  *

  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to

  *    endorse or promote products derived from this software without

  *    prior written permission. For written permission, please contact

  *    licensing@OpenSSL.org.

  *

  * 5. Products derived from this software may not be called "OpenSSL"

  *    nor may "OpenSSL" appear in their names without prior written

  *    permission of the OpenSSL Project.

  *

  * 6. Redistributions of any form whatsoever must retain the following

  *    acknowledgment:

  *    "This product includes software developed by the OpenSSL Project

  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"

  *

  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY

  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR

  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED

  * OF THE POSSIBILITY OF SUCH DAMAGE.

  * ====================================================================

  *

  * This product includes cryptographic software written by Eric Young

  * (eay@cryptsoft.com).  This product includes software written by Tim

  * Hudson (tjh@cryptsoft.com).

  *

  */

  /*

  © Portions copyright (c) 2006 Nokia Corporation.  All rights reserved.

  */

 #include <stdio.h>

 #include <openssl/crypto.h>

 #include <openssl/err.h>

 #include <openssl/conf.h>

 #include <openssl/conf_api.h>

 #include <openssl/lhash.h>

 #if (defined(SYMBIAN) && (defined(__WINSCW__) || defined(__WINS__)))

 #include "libcrypto_wsd_macros.h"

 #include "libcrypto_wsd.h"

 #endif

 const char CONF_version[]="CONF" OPENSSL_VERSION_PTEXT;

 #ifndef EMULATOR

 static CONF_METHOD *default_CONF_method=NULL;

 #else

 GET_STATIC_VAR_FROM_TLS(default_CONF_method,conf_lib,const CONF_METHOD *)

 #define default_CONF_method (*GET_WSD_VAR_NAME(default_CONF_method,conf_lib, s)())

 #endif

 /* Init a 'CONF' structure from an old LHASH */

 EXPORT_C void CONF_set_nconf(CONF *conf, LHASH *hash)

 	{

 	if (default_CONF_method == NULL)

 		default_CONF_method = NCONF_default();

 	default_CONF_method->init(conf);

 	conf->data = hash;

 	}

 /* The following section contains the "CONF classic" functions,

    rewritten in terms of the new CONF interface. */

 EXPORT_C int CONF_set_default_method(CONF_METHOD *meth)

 	{

 	default_CONF_method = meth;

 	return 1;

 	}

 EXPORT_C LHASH *CONF_load(LHASH *conf, const char *file, long *eline)

 	{

 	LHASH *ltmp;

 	BIO *in=NULL;

 #ifdef OPENSSL_SYS_VMS

 	in=BIO_new_file(file, "r");

 #else

 	in=BIO_new_file(file, "rb");

 #endif

 	if (in == NULL)

 		{

 		CONFerr(CONF_F_CONF_LOAD,ERR_R_SYS_LIB);

 		return NULL;

 		}

 	ltmp = CONF_load_bio(conf, in, eline);

 	BIO_free(in);

 	return ltmp;

 	}

 #ifndef OPENSSL_NO_FP_API

 EXPORT_C LHASH *CONF_load_fp(LHASH *conf, FILE *fp,long *eline)

 	{

 	BIO *btmp;

 	LHASH *ltmp;

 	if(!(btmp = BIO_new_fp(fp, BIO_NOCLOSE))) {

 		CONFerr(CONF_F_CONF_LOAD_FP,ERR_R_BUF_LIB);

 		return NULL;

 	}

 	ltmp = CONF_load_bio(conf, btmp, eline);

 	BIO_free(btmp);

 	return ltmp;

 	}

 #endif

 EXPORT_C LHASH *CONF_load_bio(LHASH *conf, BIO *bp,long *eline)

 	{

 	CONF ctmp;

 	int ret;

 	CONF_set_nconf(&ctmp, conf);

 	ret = NCONF_load_bio(&ctmp, bp, eline);

 	if (ret)

 		return ctmp.data;

 	return NULL;

 	}

 EXPORT_C STACK_OF(CONF_VALUE) *CONF_get_section(LHASH *conf,const char *section)

 	{

 	if (conf == NULL)

 		{

 		return NULL;

 		}

 	else

 		{

 		CONF ctmp;

 		CONF_set_nconf(&ctmp, conf);

 		return NCONF_get_section(&ctmp, section);

 		}

 	}

 EXPORT_C char *CONF_get_string(LHASH *conf,const char *group,const char *name)

 	{

 	if (conf == NULL)

 		{

 		return NCONF_get_string(NULL, group, name);

 		}

 	else

 		{

 		CONF ctmp;

 		CONF_set_nconf(&ctmp, conf);

 		return NCONF_get_string(&ctmp, group, name);

 		}

 	}

 EXPORT_C long CONF_get_number(LHASH *conf,const char *group,const char *name)

 	{

 	int status;

 	long result = 0;

 	if (conf == NULL)

 		{

 		status = NCONF_get_number_e(NULL, group, name, &result);

 		}

 	else

 		{

 		CONF ctmp;

 		CONF_set_nconf(&ctmp, conf);

 		status = NCONF_get_number_e(&ctmp, group, name, &result);

 		}

 	if (status == 0)

 		{

 		/* This function does not believe in errors... */

 		ERR_clear_error();

 		}

 	return result;

 	}

 EXPORT_C void CONF_free(LHASH *conf)

 	{

 	CONF ctmp;

 	CONF_set_nconf(&ctmp, conf);

 	NCONF_free_data(&ctmp);

 	}

 #ifndef OPENSSL_NO_FP_API

 EXPORT_C int CONF_dump_fp(LHASH *conf, FILE *out)

 	{

 	BIO *btmp;

 	int ret;

 	if(!(btmp = BIO_new_fp(out, BIO_NOCLOSE))) {

 		CONFerr(CONF_F_CONF_DUMP_FP,ERR_R_BUF_LIB);

 		return 0;

 	}

 	ret = CONF_dump_bio(conf, btmp);

 	BIO_free(btmp);

 	return ret;

 	}

 #endif

 EXPORT_C int CONF_dump_bio(LHASH *conf, BIO *out)

 	{

 	CONF ctmp;

 	CONF_set_nconf(&ctmp, conf);

 	return NCONF_dump_bio(&ctmp, out);

 	}

 /* The following section contains the "New CONF" functions.  They are

    completely centralised around a new CONF structure that may contain

    basically anything, but at least a method pointer and a table of data.

    These functions are also written in terms of the bridge functions used

    by the "CONF classic" functions, for consistency.  */

 EXPORT_C CONF *NCONF_new(CONF_METHOD *meth)

 	{

 	CONF *ret;

 	if (meth == NULL)

 		meth = NCONF_default();

 	ret = meth->create(meth);

 	if (ret == NULL)

 		{

 		CONFerr(CONF_F_NCONF_NEW,ERR_R_MALLOC_FAILURE);

 		return(NULL);

 		}

 	return ret;

 	}

 EXPORT_C void NCONF_free(CONF *conf)

 	{

 	if (conf == NULL)

 		return;

 	conf->meth->destroy(conf);

 	}

 EXPORT_C void NCONF_free_data(CONF *conf)

 	{

 	if (conf == NULL)

 		return;

 	conf->meth->destroy_data(conf);

 	}

 EXPORT_C int NCONF_load(CONF *conf, const char *file, long *eline)

 	{

 	if (conf == NULL)

 		{

 		CONFerr(CONF_F_NCONF_LOAD,CONF_R_NO_CONF);

 		return 0;

 		}

 	return conf->meth->load(conf, file, eline);

 	}

 #ifndef OPENSSL_NO_FP_API

 EXPORT_C int NCONF_load_fp(CONF *conf, FILE *fp,long *eline)

 	{

 	BIO *btmp;

 	int ret;

 	if(!(btmp = BIO_new_fp(fp, BIO_NOCLOSE)))

 		{

 		CONFerr(CONF_F_NCONF_LOAD_FP,ERR_R_BUF_LIB);

 		return 0;

 		}

 	ret = NCONF_load_bio(conf, btmp, eline);

 	BIO_free(btmp);

 	return ret;

 	}

 #endif

 EXPORT_C int NCONF_load_bio(CONF *conf, BIO *bp,long *eline)

 	{

 	if (conf == NULL)

 		{

 		CONFerr(CONF_F_NCONF_LOAD_BIO,CONF_R_NO_CONF);

 		return 0;

 		}

 	return conf->meth->load_bio(conf, bp, eline);

 	}

 EXPORT_C STACK_OF(CONF_VALUE) *NCONF_get_section(const CONF *conf,const char *section)

 	{

 	if (conf == NULL)

 		{

 		CONFerr(CONF_F_NCONF_GET_SECTION,CONF_R_NO_CONF);

 		return NULL;

 		}

 	if (section == NULL)

 		{

 		CONFerr(CONF_F_NCONF_GET_SECTION,CONF_R_NO_SECTION);

 		return NULL;

 		}

 	return _CONF_get_section_values(conf, section);

 	}

 EXPORT_C char *NCONF_get_string(const CONF *conf,const char *group,const char *name)

 	{

 	char *s = _CONF_get_string(conf, group, name);

         /* Since we may get a value from an environment variable even

            if conf is NULL, let's check the value first */

         if (s) return s;

 	if (conf == NULL)

 		{

 		CONFerr(CONF_F_NCONF_GET_STRING,

                         CONF_R_NO_CONF_OR_ENVIRONMENT_VARIABLE);

 		return NULL;

 		}

 	CONFerr(CONF_F_NCONF_GET_STRING,

 		CONF_R_NO_VALUE);

 	ERR_add_error_data(4,"group=",group," name=",name);

 	return NULL;

 	}

 EXPORT_C int NCONF_get_number_e(const CONF *conf,const char *group,const char *name,

 		       long *result)

 	{

 	char *str;

 	if (result == NULL)

 		{

 		CONFerr(CONF_F_NCONF_GET_NUMBER_E,ERR_R_PASSED_NULL_PARAMETER);

 		return 0;

 		}

 	str = NCONF_get_string(conf,group,name);

 	if (str == NULL)

 		return 0;

 	for (*result = 0;conf->meth->is_number(conf, *str);)

 		{

 		*result = (*result)*10 + conf->meth->to_int(conf, *str);

 		str++;

 		}

 	return 1;

 	}

 #ifndef OPENSSL_NO_FP_API

 EXPORT_C int NCONF_dump_fp(const CONF *conf, FILE *out)

 	{

 	BIO *btmp;

 	int ret;

 	if(!(btmp = BIO_new_fp(out, BIO_NOCLOSE))) {

 		CONFerr(CONF_F_NCONF_DUMP_FP,ERR_R_BUF_LIB);

 		return 0;

 	}

 	ret = NCONF_dump_bio(conf, btmp);

 	BIO_free(btmp);

 	return ret;

 	}

 #endif

 EXPORT_C int NCONF_dump_bio(const CONF *conf, BIO *out)

 	{

 	if (conf == NULL)

 		{

 		CONFerr(CONF_F_NCONF_DUMP_BIO,CONF_R_NO_CONF);

 		return 0;

 		}

 	return conf->meth->dump(conf, out);

 	}

 /* This function should be avoided */

 #if 0

 long NCONF_get_number(CONF *conf,char *group,char *name)

 	{

 	int status;

 	long ret=0;

 	status = NCONF_get_number_e(conf, group, name, &ret);

 	if (status == 0)

 		{

 		/* This function does not believe in errors... */

 		ERR_get_error();

 		}

 	return ret;

 	}

 #endif