/* crypto/err/err.c */

 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)

  * All rights reserved.

  *

  * This package is an SSL implementation written

  * by Eric Young (eay@cryptsoft.com).

  * The implementation was written so as to conform with Netscapes SSL.

  * 

  * This library is free for commercial and non-commercial use as long as

  * the following conditions are aheared to.  The following conditions

  * apply to all code found in this distribution, be it the RC4, RSA,

  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation

  * included with this distribution is covered by the same copyright terms

  * except that the holder is Tim Hudson (tjh@cryptsoft.com).

  * 

  * Copyright remains Eric Young's, and as such any Copyright notices in

  * the code are not to be removed.

  * If this package is used in a product, Eric Young should be given attribution

  * as the author of the parts of the library used.

  * This can be in the form of a textual message at program startup or

  * in documentation (online or textual) provided with the package.

  * 

  * 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 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 acknowledgement:

  *    "This product includes cryptographic software written by

  *     Eric Young (eay@cryptsoft.com)"

  *    The word 'cryptographic' can be left out if the rouines from the library

  *    being used are not cryptographic related :-).

  * 4. If you include any Windows specific code (or a derivative thereof) from 

  *    the apps directory (application code) you must include an acknowledgement:

  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"

  * 

  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND

  * ANY EXPRESS 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 AUTHOR OR 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.

  * 

  * The licence and distribution terms for any publically available version or

  * derivative of this code cannot be changed.  i.e. this code cannot simply be

  * copied and put under another distribution licence

  * [including the GNU Public Licence.]

  */

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

  * Copyright (c) 1998-2001 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

  *    openssl-core@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 <stdarg.h>

 #include <string.h>

 #include "cryptlib.h"

 #include <openssl/lhash.h>

 #include <openssl/crypto.h>

 #include <openssl/buffer.h>

 #include <openssl/bio.h>

 #include <openssl/err.h>

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

 #include "libcrypto_wsd_macros.h"

 #include "libcrypto_wsd.h"

 #endif

 static void err_load_strings(int lib, ERR_STRING_DATA *str);

 static void ERR_STATE_free(ERR_STATE *s);

 #ifndef OPENSSL_NO_ERR

 #ifndef EMULATOR

 static ERR_STRING_DATA ERR_str_libraries[]=

 	{

 {ERR_PACK(ERR_LIB_NONE,0,0)		,"unknown library"},

 {ERR_PACK(ERR_LIB_SYS,0,0)		,"system library"},

 {ERR_PACK(ERR_LIB_BN,0,0)		,"bignum routines"},

 {ERR_PACK(ERR_LIB_RSA,0,0)		,"rsa routines"},

 {ERR_PACK(ERR_LIB_DH,0,0)		,"Diffie-Hellman routines"},

 {ERR_PACK(ERR_LIB_EVP,0,0)		,"digital envelope routines"},

 {ERR_PACK(ERR_LIB_BUF,0,0)		,"memory buffer routines"},

 {ERR_PACK(ERR_LIB_OBJ,0,0)		,"object identifier routines"},

 {ERR_PACK(ERR_LIB_PEM,0,0)		,"PEM routines"},

 {ERR_PACK(ERR_LIB_DSA,0,0)		,"dsa routines"},

 {ERR_PACK(ERR_LIB_X509,0,0)		,"x509 certificate routines"},

 {ERR_PACK(ERR_LIB_ASN1,0,0)		,"asn1 encoding routines"},

 {ERR_PACK(ERR_LIB_CONF,0,0)		,"configuration file routines"},

 {ERR_PACK(ERR_LIB_CRYPTO,0,0)		,"common libcrypto routines"},

 {ERR_PACK(ERR_LIB_EC,0,0)		,"elliptic curve routines"},

 {ERR_PACK(ERR_LIB_SSL,0,0)		,"SSL routines"},

 {ERR_PACK(ERR_LIB_BIO,0,0)		,"BIO routines"},

 {ERR_PACK(ERR_LIB_PKCS7,0,0)		,"PKCS7 routines"},

 {ERR_PACK(ERR_LIB_X509V3,0,0)		,"X509 V3 routines"},

 {ERR_PACK(ERR_LIB_PKCS12,0,0)		,"PKCS12 routines"},

 {ERR_PACK(ERR_LIB_RAND,0,0)		,"random number generator"},

 {ERR_PACK(ERR_LIB_DSO,0,0)		,"DSO support routines"},

 {ERR_PACK(ERR_LIB_ENGINE,0,0)		,"engine routines"},

 {ERR_PACK(ERR_LIB_OCSP,0,0)		,"OCSP routines"},

 {0,NULL},

 	};

 static ERR_STRING_DATA ERR_str_functs[]=

 	{

 	{ERR_PACK(0,SYS_F_FOPEN,0),     	"fopen"},

 	{ERR_PACK(0,SYS_F_CONNECT,0),		"connect"},

 	{ERR_PACK(0,SYS_F_GETSERVBYNAME,0),	"getservbyname"},

 	{ERR_PACK(0,SYS_F_SOCKET,0),		"socket"}, 

 	{ERR_PACK(0,SYS_F_IOCTLSOCKET,0),	"ioctlsocket"},

 	{ERR_PACK(0,SYS_F_BIND,0),		"bind"},

 	{ERR_PACK(0,SYS_F_LISTEN,0),		"listen"},

 	{ERR_PACK(0,SYS_F_ACCEPT,0),		"accept"},

 #ifdef OPENSSL_SYS_WINDOWS

 	{ERR_PACK(0,SYS_F_WSASTARTUP,0),	"WSAstartup"},

 #endif

 	{ERR_PACK(0,SYS_F_OPENDIR,0),		"opendir"},

 	{ERR_PACK(0,SYS_F_FREAD,0),		"fread"},

 	{0,NULL},

 	};

 static ERR_STRING_DATA ERR_str_reasons[]=

 	{

 {ERR_R_SYS_LIB				,"system lib"},

 {ERR_R_BN_LIB				,"BN lib"},

 {ERR_R_RSA_LIB				,"RSA lib"},

 {ERR_R_DH_LIB				,"DH lib"},

 {ERR_R_EVP_LIB				,"EVP lib"},

 {ERR_R_BUF_LIB				,"BUF lib"},

 {ERR_R_OBJ_LIB				,"OBJ lib"},

 {ERR_R_PEM_LIB				,"PEM lib"},

 {ERR_R_DSA_LIB				,"DSA lib"},

 {ERR_R_X509_LIB				,"X509 lib"},

 {ERR_R_ASN1_LIB				,"ASN1 lib"},

 {ERR_R_CONF_LIB				,"CONF lib"},

 {ERR_R_CRYPTO_LIB			,"CRYPTO lib"},

 {ERR_R_EC_LIB				,"EC lib"},

 {ERR_R_SSL_LIB				,"SSL lib"},

 {ERR_R_BIO_LIB				,"BIO lib"},

 {ERR_R_PKCS7_LIB			,"PKCS7 lib"},

 {ERR_R_X509V3_LIB			,"X509V3 lib"},

 {ERR_R_PKCS12_LIB			,"PKCS12 lib"},

 {ERR_R_RAND_LIB				,"RAND lib"},

 {ERR_R_DSO_LIB				,"DSO lib"},

 {ERR_R_ENGINE_LIB			,"ENGINE lib"},

 {ERR_R_OCSP_LIB				,"OCSP lib"},

 {ERR_R_NESTED_ASN1_ERROR		,"nested asn1 error"},

 {ERR_R_BAD_ASN1_OBJECT_HEADER		,"bad asn1 object header"},

 {ERR_R_BAD_GET_ASN1_OBJECT_CALL		,"bad get asn1 object call"},

 {ERR_R_EXPECTING_AN_ASN1_SEQUENCE	,"expecting an asn1 sequence"},

 {ERR_R_ASN1_LENGTH_MISMATCH		,"asn1 length mismatch"},

 {ERR_R_MISSING_ASN1_EOS			,"missing asn1 eos"},

 {ERR_R_FATAL                            ,"fatal"},

 {ERR_R_MALLOC_FAILURE			,"malloc failure"},

 {ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED	,"called a function you should not call"},

 {ERR_R_PASSED_NULL_PARAMETER		,"passed a null parameter"},

 {ERR_R_INTERNAL_ERROR			,"internal error"},

 {ERR_R_DISABLED				,"called a function that was disabled at compile-time"},

 {0,NULL},

 	};

 #else //EMULATOR

 const ERR_STRING_DATA temp_ERR_str_libraries[]=

 	{

 {ERR_PACK(ERR_LIB_NONE,0,0)		,"unknown library"},

 {ERR_PACK(ERR_LIB_SYS,0,0)		,"system library"},

 {ERR_PACK(ERR_LIB_BN,0,0)		,"bignum routines"},

 {ERR_PACK(ERR_LIB_RSA,0,0)		,"rsa routines"},

 {ERR_PACK(ERR_LIB_DH,0,0)		,"Diffie-Hellman routines"},

 {ERR_PACK(ERR_LIB_EVP,0,0)		,"digital envelope routines"},

 {ERR_PACK(ERR_LIB_BUF,0,0)		,"memory buffer routines"},

 {ERR_PACK(ERR_LIB_OBJ,0,0)		,"object identifier routines"},

 {ERR_PACK(ERR_LIB_PEM,0,0)		,"PEM routines"},

 {ERR_PACK(ERR_LIB_DSA,0,0)		,"dsa routines"},

 {ERR_PACK(ERR_LIB_X509,0,0)		,"x509 certificate routines"},

 {ERR_PACK(ERR_LIB_ASN1,0,0)		,"asn1 encoding routines"},

 {ERR_PACK(ERR_LIB_CONF,0,0)		,"configuration file routines"},

 {ERR_PACK(ERR_LIB_CRYPTO,0,0)		,"common libcrypto routines"},

 {ERR_PACK(ERR_LIB_EC,0,0)		,"elliptic curve routines"},

 {ERR_PACK(ERR_LIB_SSL,0,0)		,"SSL routines"},

 {ERR_PACK(ERR_LIB_BIO,0,0)		,"BIO routines"},

 {ERR_PACK(ERR_LIB_PKCS7,0,0)		,"PKCS7 routines"},

 {ERR_PACK(ERR_LIB_X509V3,0,0)		,"X509 V3 routines"},

 {ERR_PACK(ERR_LIB_PKCS12,0,0)		,"PKCS12 routines"},

 {ERR_PACK(ERR_LIB_RAND,0,0)		,"random number generator"},

 {ERR_PACK(ERR_LIB_DSO,0,0)		,"DSO support routines"},

 {ERR_PACK(ERR_LIB_ENGINE,0,0)		,"engine routines"},

 {ERR_PACK(ERR_LIB_OCSP,0,0)		,"OCSP routines"},

 {0,NULL},

 	};

 const ERR_STRING_DATA temp_ERR_str_functs[]=

 	{

 	{ERR_PACK(0,SYS_F_FOPEN,0),     	"fopen"},

 	{ERR_PACK(0,SYS_F_CONNECT,0),		"connect"},

 	{ERR_PACK(0,SYS_F_GETSERVBYNAME,0),	"getservbyname"},

 	{ERR_PACK(0,SYS_F_SOCKET,0),		"socket"}, 

 	{ERR_PACK(0,SYS_F_IOCTLSOCKET,0),	"ioctlsocket"},

 	{ERR_PACK(0,SYS_F_BIND,0),		"bind"},

 	{ERR_PACK(0,SYS_F_LISTEN,0),		"listen"},

 	{ERR_PACK(0,SYS_F_ACCEPT,0),		"accept"},

 #ifdef OPENSSL_SYS_WINDOWS

 	{ERR_PACK(0,SYS_F_WSASTARTUP,0),	"WSAstartup"},

 #endif

 	{ERR_PACK(0,SYS_F_OPENDIR,0),		"opendir"},

 	{ERR_PACK(0,SYS_F_FREAD,0),		"fread"},

 	{0,NULL},

 	};

 const ERR_STRING_DATA temp_ERR_str_reasons[]=

 	{

 {ERR_R_SYS_LIB				,"system lib"},

 {ERR_R_BN_LIB				,"BN lib"},

 {ERR_R_RSA_LIB				,"RSA lib"},

 {ERR_R_DH_LIB				,"DH lib"},

 {ERR_R_EVP_LIB				,"EVP lib"},

 {ERR_R_BUF_LIB				,"BUF lib"},

 {ERR_R_OBJ_LIB				,"OBJ lib"},

 {ERR_R_PEM_LIB				,"PEM lib"},

 {ERR_R_DSA_LIB				,"DSA lib"},

 {ERR_R_X509_LIB				,"X509 lib"},

 {ERR_R_ASN1_LIB				,"ASN1 lib"},

 {ERR_R_CONF_LIB				,"CONF lib"},

 {ERR_R_CRYPTO_LIB			,"CRYPTO lib"},

 {ERR_R_EC_LIB				,"EC lib"},

 {ERR_R_SSL_LIB				,"SSL lib"},

 {ERR_R_BIO_LIB				,"BIO lib"},

 {ERR_R_PKCS7_LIB			,"PKCS7 lib"},

 {ERR_R_X509V3_LIB			,"X509V3 lib"},

 {ERR_R_PKCS12_LIB			,"PKCS12 lib"},

 {ERR_R_RAND_LIB				,"RAND lib"},

 {ERR_R_DSO_LIB				,"DSO lib"},

 {ERR_R_ENGINE_LIB			,"ENGINE lib"},

 {ERR_R_OCSP_LIB				,"OCSP lib"},

 {ERR_R_NESTED_ASN1_ERROR		,"nested asn1 error"},

 {ERR_R_BAD_ASN1_OBJECT_HEADER		,"bad asn1 object header"},

 {ERR_R_BAD_GET_ASN1_OBJECT_CALL		,"bad get asn1 object call"},

 {ERR_R_EXPECTING_AN_ASN1_SEQUENCE	,"expecting an asn1 sequence"},

 {ERR_R_ASN1_LENGTH_MISMATCH		,"asn1 length mismatch"},

 {ERR_R_MISSING_ASN1_EOS			,"missing asn1 eos"},

 {ERR_R_FATAL                            ,"fatal"},

 {ERR_R_MALLOC_FAILURE			,"malloc failure"},

 {ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED	,"called a function you should not call"},

 {ERR_R_PASSED_NULL_PARAMETER		,"passed a null parameter"},

 {ERR_R_INTERNAL_ERROR			,"internal error"},

 {ERR_R_DISABLED				,"called a function that was disabled at compile-time"},

 {0,NULL},

 	};

  GET_STATIC_ARRAY_FROM_TLS(ERR_str_functs,err_err,ERR_STRING_DATA)

  GET_STATIC_ARRAY_FROM_TLS(ERR_str_reasons,err_err,ERR_STRING_DATA)

  GET_STATIC_ARRAY_FROM_TLS(ERR_str_libraries,err_err,ERR_STRING_DATA)

  #define ERR_str_functs (GET_WSD_VAR_NAME(ERR_str_functs,err_err, s)())

  #define ERR_str_reasons (GET_WSD_VAR_NAME(ERR_str_reasons,err_err, s)())

  #define ERR_str_libraries (GET_WSD_VAR_NAME(ERR_str_libraries,err_err, s)())

 #endif //EMULATOR

 #endif

 #ifndef EMULATOR

 /* Define the predeclared (but externally opaque) "ERR_FNS" type */

 struct st_ERR_FNS

 	{

 	/* Works on the "error_hash" string table */

 	LHASH *(*cb_err_get)(int create);

 	void (*cb_err_del)(void);

 	ERR_STRING_DATA *(*cb_err_get_item)(const ERR_STRING_DATA *);

 	ERR_STRING_DATA *(*cb_err_set_item)(ERR_STRING_DATA *);

 	ERR_STRING_DATA *(*cb_err_del_item)(ERR_STRING_DATA *);

 	/* Works on the "thread_hash" error-state table */

 	LHASH *(*cb_thread_get)(int create);

 	void (*cb_thread_release)(LHASH **hash);

 	ERR_STATE *(*cb_thread_get_item)(const ERR_STATE *);

 	ERR_STATE *(*cb_thread_set_item)(ERR_STATE *);

 	void (*cb_thread_del_item)(const ERR_STATE *);

 	/* Returns the next available error "library" numbers */

 	int (*cb_get_next_lib)(void);

 	};

 #endif

 /* Predeclarations of the "err_defaults" functions */

 static LHASH *int_err_get(int create);

 static void int_err_del(void);

 static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *);

 static ERR_STRING_DATA *int_err_set_item(ERR_STRING_DATA *);

 static ERR_STRING_DATA *int_err_del_item(ERR_STRING_DATA *);

 static LHASH *int_thread_get(int create);

 static void int_thread_release(LHASH **hash);

 static ERR_STATE *int_thread_get_item(const ERR_STATE *);

 static ERR_STATE *int_thread_set_item(ERR_STATE *);

 static void int_thread_del_item(const ERR_STATE *);

 static int int_err_get_next_lib(void);

 /* The static ERR_FNS table using these defaults functions */

 static const ERR_FNS err_defaults =

 	{

 	int_err_get,

 	int_err_del,

 	int_err_get_item,

 	int_err_set_item,

 	int_err_del_item,

 	int_thread_get,

 	int_thread_release,

 	int_thread_get_item,

 	int_thread_set_item,

 	int_thread_del_item,

 	int_err_get_next_lib

 	};

 #ifndef EMULATOR

 /* The replacable table of ERR_FNS functions we use at run-time */

 static const ERR_FNS *err_fns = NULL;

 #else

 GET_STATIC_VAR_FROM_TLS(err_fns,err,const ERR_FNS *)

 #define err_fns (*GET_WSD_VAR_NAME(err_fns,err, s)())

 #endif

 /* Eg. rather than using "err_get()", use "ERRFN(err_get)()". */

 #define ERRFN(a) err_fns->cb_##a

 #ifndef EMULATOR

 /* The internal state used by "err_defaults" - as such, the setting, reading,

  * creating, and deleting of this data should only be permitted via the

  * "err_defaults" functions. This way, a linked module can completely defer all

  * ERR state operation (together with requisite locking) to the implementations

  * and state in the loading application. */

 static LHASH *int_error_hash = NULL;

 static LHASH *int_thread_hash = NULL;

 static int int_thread_hash_references = 0;

 static int int_err_library_number= ERR_LIB_USER;

 #else

 GET_STATIC_VAR_FROM_TLS(int_error_hash,err,LHASH *)

 #define int_error_hash (*GET_WSD_VAR_NAME(int_error_hash,err,s)())

 GET_STATIC_VAR_FROM_TLS(int_thread_hash,err,LHASH *)

 #define int_thread_hash (*GET_WSD_VAR_NAME(int_thread_hash,err,s)())

 GET_STATIC_VAR_FROM_TLS(int_thread_hash_references,err,int)

 #define int_thread_hash_references (*GET_WSD_VAR_NAME(int_thread_hash_references,err,s)())

 GET_STATIC_VAR_FROM_TLS(int_err_library_number,err,int)

 #define int_err_library_number (*GET_WSD_VAR_NAME(int_err_library_number,err,s)())

 #endif

 /* Internal function that checks whether "err_fns" is set and if not, sets it to

  * the defaults. */

 static void err_fns_check(void)

 	{

 	if (err_fns) return;

 	CRYPTO_w_lock(CRYPTO_LOCK_ERR);

 	if (!err_fns)

 		err_fns = &err_defaults;

 	CRYPTO_w_unlock(CRYPTO_LOCK_ERR);

 	}

 /* API functions to get or set the underlying ERR functions. */

 EXPORT_C const ERR_FNS *ERR_get_implementation(void)

 	{

 	err_fns_check();

 	return err_fns;

 	}

 EXPORT_C int ERR_set_implementation(const ERR_FNS *fns)

 	{

 	int ret = 0;

 	CRYPTO_w_lock(CRYPTO_LOCK_ERR);

 	/* It's too late if 'err_fns' is non-NULL. BTW: not much point setting

 	 * an error is there?! */

 	if (!err_fns)

 		{

 		err_fns = fns;

 		ret = 1;

 		}

 	CRYPTO_w_unlock(CRYPTO_LOCK_ERR);

 	return ret;

 	}

 /* These are the callbacks provided to "lh_new()" when creating the LHASH tables

  * internal to the "err_defaults" implementation. */

 /* static unsigned long err_hash(ERR_STRING_DATA *a); */

 static unsigned long err_hash(const void *a_void);

 /* static int err_cmp(ERR_STRING_DATA *a, ERR_STRING_DATA *b); */

 static int err_cmp(const void *a_void, const void *b_void);

 /* static unsigned long pid_hash(ERR_STATE *pid); */

 static unsigned long pid_hash(const void *pid_void);

 /* static int pid_cmp(ERR_STATE *a,ERR_STATE *pid); */

 static int pid_cmp(const void *a_void,const void *pid_void);

 static unsigned long get_error_values(int inc,int top,const char **file,int *line,

 				      const char **data,int *flags);

 /* The internal functions used in the "err_defaults" implementation */

 static LHASH *int_err_get(int create)

 	{

 	LHASH *ret = NULL;

 	CRYPTO_w_lock(CRYPTO_LOCK_ERR);

 	if (!int_error_hash && create)

 		{

 		CRYPTO_push_info("int_err_get (err.c)");

 		int_error_hash = lh_new(err_hash, err_cmp);

 		CRYPTO_pop_info();

 		}

 	if (int_error_hash)

 		ret = int_error_hash;

 	CRYPTO_w_unlock(CRYPTO_LOCK_ERR);

 	return ret;

 	}

 static void int_err_del(void)

 	{

 	CRYPTO_w_lock(CRYPTO_LOCK_ERR);

 	if (int_error_hash)

 		{

 		lh_free(int_error_hash);

 		int_error_hash = NULL;

 		}

 	CRYPTO_w_unlock(CRYPTO_LOCK_ERR);

 	}

 static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *d)

 	{

 	ERR_STRING_DATA *p;

 	LHASH *hash;

 	err_fns_check();

 	hash = ERRFN(err_get)(0);

 	if (!hash)

 		return NULL;

 	CRYPTO_r_lock(CRYPTO_LOCK_ERR);

 	p = (ERR_STRING_DATA *)lh_retrieve(hash, d);

 	CRYPTO_r_unlock(CRYPTO_LOCK_ERR);

 	return p;

 	}

 static ERR_STRING_DATA *int_err_set_item(ERR_STRING_DATA *d)

 	{

 	ERR_STRING_DATA *p;

 	LHASH *hash;

 	err_fns_check();

 	hash = ERRFN(err_get)(1);

 	if (!hash)

 		return NULL;

 	CRYPTO_w_lock(CRYPTO_LOCK_ERR);

 	p = (ERR_STRING_DATA *)lh_insert(hash, d);

 	CRYPTO_w_unlock(CRYPTO_LOCK_ERR);

 	return p;

 	}

 static ERR_STRING_DATA *int_err_del_item(ERR_STRING_DATA *d)

 	{

 	ERR_STRING_DATA *p;

 	LHASH *hash;

 	err_fns_check();

 	hash = ERRFN(err_get)(0);

 	if (!hash)

 		return NULL;

 	CRYPTO_w_lock(CRYPTO_LOCK_ERR);

 	p = (ERR_STRING_DATA *)lh_delete(hash, d);

 	CRYPTO_w_unlock(CRYPTO_LOCK_ERR);

 	return p;

 	}

 static LHASH *int_thread_get(int create)

 	{

 	LHASH *ret = NULL;

 	CRYPTO_w_lock(CRYPTO_LOCK_ERR);

 	if (!int_thread_hash && create)

 		{

 		CRYPTO_push_info("int_thread_get (err.c)");

 		int_thread_hash = lh_new(pid_hash, pid_cmp);

 		CRYPTO_pop_info();

 		}

 	if (int_thread_hash)

 		{

 		int_thread_hash_references++;

 		ret = int_thread_hash;

 		}

 	CRYPTO_w_unlock(CRYPTO_LOCK_ERR);

 	return ret;

 	}

 static void int_thread_release(LHASH **hash)

 	{

 	int i;

 	if (hash == NULL || *hash == NULL)

 		return;

 	i = CRYPTO_add(&int_thread_hash_references, -1, CRYPTO_LOCK_ERR);

 #ifdef REF_PRINT

 	fprintf(stderr,"%4d:%s\n",int_thread_hash_references,"ERR");

 #endif

 	if (i > 0) return;

 #ifdef REF_CHECK

 	if (i < 0)

 		{

 		fprintf(stderr,"int_thread_release, bad reference count\n");

 		abort(); /* ok */

 		}

 #endif

 	*hash = NULL;

 	}

 static ERR_STATE *int_thread_get_item(const ERR_STATE *d)

 	{

 	ERR_STATE *p;

 	LHASH *hash;

 	err_fns_check();

 	hash = ERRFN(thread_get)(0);

 	if (!hash)

 		return NULL;

 	CRYPTO_r_lock(CRYPTO_LOCK_ERR);

 	p = (ERR_STATE *)lh_retrieve(hash, d);

 	CRYPTO_r_unlock(CRYPTO_LOCK_ERR);

 	ERRFN(thread_release)(&hash);

 	return p;

 	}

 static ERR_STATE *int_thread_set_item(ERR_STATE *d)

 	{

 	ERR_STATE *p;

 	LHASH *hash;

 	err_fns_check();

 	hash = ERRFN(thread_get)(1);

 	if (!hash)

 		return NULL;

 	CRYPTO_w_lock(CRYPTO_LOCK_ERR);

 	p = (ERR_STATE *)lh_insert(hash, d);

 	CRYPTO_w_unlock(CRYPTO_LOCK_ERR);

 	ERRFN(thread_release)(&hash);

 	return p;

 	}

 static void int_thread_del_item(const ERR_STATE *d)

 	{

 	ERR_STATE *p;

 	LHASH *hash;

 	err_fns_check();

 	hash = ERRFN(thread_get)(0);

 	if (!hash)

 		return;

 	CRYPTO_w_lock(CRYPTO_LOCK_ERR);

 	p = (ERR_STATE *)lh_delete(hash, d);

 	/* make sure we don't leak memory */

 	if (int_thread_hash_references == 1

 		&& int_thread_hash && (lh_num_items(int_thread_hash) == 0))

 		{

 		lh_free(int_thread_hash);

 		int_thread_hash = NULL;

 		}

 	CRYPTO_w_unlock(CRYPTO_LOCK_ERR);

 	ERRFN(thread_release)(&hash);

 	if (p)

 		ERR_STATE_free(p);

 	}

 static int int_err_get_next_lib(void)

 	{

 	int ret;

 	CRYPTO_w_lock(CRYPTO_LOCK_ERR);

 	ret = int_err_library_number++;

 	CRYPTO_w_unlock(CRYPTO_LOCK_ERR);

 	return ret;

 	}

 #ifndef OPENSSL_NO_ERR

 #define NUM_SYS_STR_REASONS 127

 #define LEN_SYS_STR_REASON 32

 #ifndef EMULATOR

 static ERR_STRING_DATA SYS_str_reasons[NUM_SYS_STR_REASONS + 1];

 #endif

 /* SYS_str_reasons is filled with copies of strerror() results at

  * initialization.

  * 'errno' values up to 127 should cover all usual errors,

  * others will be displayed numerically by ERR_error_string.

  * It is crucial that we have something for each reason code

  * that occurs in ERR_str_reasons, or bogus reason strings

  * will be returned for SYSerr(), which always gets an errno

  * value and never one of those 'standard' reason codes. */

 #ifdef EMULATOR

   GET_STATIC_VAR_FROM_TLS(init,err,int)

   #define init (*GET_WSD_VAR_NAME(init,err, s)())

   GET_STATIC_ARRAY_FROM_TLS(SYS_str_reasons,err,ERR_STRING_DATA)

   #define SYS_str_reasons (GET_WSD_VAR_NAME(SYS_str_reasons,err, s)())

   //GET_STATIC_ARRAY_FROM_TLS(&strerror_tab,err,char)

   #define strerror_tab libcrypto_ImpurePtr()->strerror_tab

 #endif 

 static void build_SYS_str_reasons(void)

 	{

 	/* OPENSSL_malloc cannot be used here, use static storage instead */

 #ifndef EMULATOR		

 	static char strerror_tab[NUM_SYS_STR_REASONS][LEN_SYS_STR_REASON];

 #endif	

 	int i;

 #ifndef EMULATOR	

 	static int init = 1;

 #endif	

 	CRYPTO_r_lock(CRYPTO_LOCK_ERR);

 	if (!init)

 		{

 		CRYPTO_r_unlock(CRYPTO_LOCK_ERR);

 		return;

 		}

 	CRYPTO_r_unlock(CRYPTO_LOCK_ERR);

 	CRYPTO_w_lock(CRYPTO_LOCK_ERR);

 	if (!init)

 		{

 		CRYPTO_w_unlock(CRYPTO_LOCK_ERR);

 		return;

 		}

 	for (i = 1; i <= NUM_SYS_STR_REASONS; i++)

 		{

 		ERR_STRING_DATA *str = &SYS_str_reasons[i - 1];

 		str->error = (unsigned long)i;

 		if (str->string == NULL)

 			{

 			char (*dest)[LEN_SYS_STR_REASON] = &(strerror_tab[i - 1]);

 			char *src = strerror(i);

 			if (src != NULL)

 				{

 				strncpy(*dest, src, sizeof *dest);

 				(*dest)[sizeof *dest - 1] = '\0';

 				str->string = *dest;

 				}

 			}

 		if (str->string == NULL)

 			str->string = "unknown";

 		}

 	/* Now we still have SYS_str_reasons[NUM_SYS_STR_REASONS] = {0, NULL},

 	 * as required by ERR_load_strings. */

 	init = 0;

 	CRYPTO_w_unlock(CRYPTO_LOCK_ERR);

 	}

 #endif

 #define err_clear_data(p,i) \

 	do { \

 	if (((p)->err_data[i] != NULL) && \

 		(p)->err_data_flags[i] & ERR_TXT_MALLOCED) \

 		{  \

 		OPENSSL_free((p)->err_data[i]); \

 		(p)->err_data[i]=NULL; \

 		} \

 	(p)->err_data_flags[i]=0; \

 	} while(0)

 #define err_clear(p,i) \

 	do { \

 	(p)->err_flags[i]=0; \

 	(p)->err_buffer[i]=0; \

 	err_clear_data(p,i); \

 	(p)->err_file[i]=NULL; \

 	(p)->err_line[i]= -1; \

 	} while(0)

 static void ERR_STATE_free(ERR_STATE *s)

 	{

 	int i;

 	if (s == NULL)

 	    return;

 	for (i=0; i<ERR_NUM_ERRORS; i++)

 		{

 		err_clear_data(s,i);

 		}

 	OPENSSL_free(s);

 	}

 EXPORT_C void ERR_load_ERR_strings(void)

 	{

 	err_fns_check();

 #ifndef OPENSSL_NO_ERR

 	err_load_strings(0,ERR_str_libraries);

 	err_load_strings(0,ERR_str_reasons);

 	err_load_strings(ERR_LIB_SYS,ERR_str_functs);

 	build_SYS_str_reasons();

 	err_load_strings(ERR_LIB_SYS,SYS_str_reasons);

 #endif

 	}

 static void err_load_strings(int lib, ERR_STRING_DATA *str)

 	{

 	while (str->error)

 		{

 		if (lib)

 			str->error|=ERR_PACK(lib,0,0);

 		ERRFN(err_set_item)(str);

 		str++;

 		}

 	}

 EXPORT_C void ERR_load_strings(int lib, ERR_STRING_DATA *str)

 	{

 	ERR_load_ERR_strings();

 	err_load_strings(lib, str);

 	}

 EXPORT_C void ERR_unload_strings(int lib, ERR_STRING_DATA *str)

 	{

 	while (str->error)

 		{

 		if (lib)

 			str->error|=ERR_PACK(lib,0,0);

 		ERRFN(err_del_item)(str);

 		str++;

 		}

 	}

 EXPORT_C void ERR_free_strings(void)

 	{

 	err_fns_check();

 	ERRFN(err_del)();

 	}

 /********************************************************/

 EXPORT_C void ERR_put_error(int lib, int func, int reason, const char *file,

 	     int line)

 	{

 	ERR_STATE *es;

 #ifdef _OSD_POSIX

 	/* In the BS2000-OSD POSIX subsystem, the compiler generates

 	 * path names in the form "*POSIX(/etc/passwd)".

 	 * This dirty hack strips them to something sensible.

 	 * @@@ We shouldn't modify a const string, though.

 	 */

 	if (strncmp(file,"*POSIX(", sizeof("*POSIX(")-1) == 0) {

 		char *end;

 		/* Skip the "*POSIX(" prefix */

 		file += sizeof("*POSIX(")-1;

 		end = &file[strlen(file)-1];

 		if (*end == ')')

 			*end = '\0';

 		/* Optional: use the basename of the path only. */

 		if ((end = strrchr(file, '/')) != NULL)

 			file = &end[1];

 	}

 #endif

 	es=ERR_get_state();

 	es->top=(es->top+1)%ERR_NUM_ERRORS;

 	if (es->top == es->bottom)

 		es->bottom=(es->bottom+1)%ERR_NUM_ERRORS;

 	es->err_flags[es->top]=0;

 	es->err_buffer[es->top]=ERR_PACK(lib,func,reason);

 	es->err_file[es->top]=file;

 	es->err_line[es->top]=line;

 	err_clear_data(es,es->top);

 	}

 EXPORT_C void ERR_clear_error(void)

 	{

 	int i;

 	ERR_STATE *es;

 	es=ERR_get_state();

 	for (i=0; i<ERR_NUM_ERRORS; i++)

 		{

 		err_clear(es,i);

 		}

 	es->top=es->bottom=0;

 	}

 EXPORT_C unsigned long ERR_get_error(void)

 	{ return(get_error_values(1,0,NULL,NULL,NULL,NULL)); }

 EXPORT_C unsigned long ERR_get_error_line(const char **file,

 	     int *line)

 	{ return(get_error_values(1,0,file,line,NULL,NULL)); }

 EXPORT_C unsigned long ERR_get_error_line_data(const char **file, int *line,

 	     const char **data, int *flags)

 	{ return(get_error_values(1,0,file,line,data,flags)); }

 EXPORT_C unsigned long ERR_peek_error(void)

 	{ return(get_error_values(0,0,NULL,NULL,NULL,NULL)); }

 EXPORT_C unsigned long ERR_peek_error_line(const char **file, int *line)

 	{ return(get_error_values(0,0,file,line,NULL,NULL)); }

 EXPORT_C unsigned long ERR_peek_error_line_data(const char **file, int *line,

 	     const char **data, int *flags)

 	{ return(get_error_values(0,0,file,line,data,flags)); }

 EXPORT_C unsigned long ERR_peek_last_error(void)

 	{ return(get_error_values(0,1,NULL,NULL,NULL,NULL)); }

 EXPORT_C unsigned long ERR_peek_last_error_line(const char **file, int *line)

 	{ return(get_error_values(0,1,file,line,NULL,NULL)); }

 EXPORT_C unsigned long ERR_peek_last_error_line_data(const char **file, int *line,

 	     const char **data, int *flags)

 	{ return(get_error_values(0,1,file,line,data,flags)); }

 static unsigned long get_error_values(int inc, int top, const char **file, int *line,

 	     const char **data, int *flags)

 	{	

 	int i=0;

 	ERR_STATE *es;

 	unsigned long ret;

 	es=ERR_get_state();

 	if (inc && top)

 		{

 		if (file) *file = "";

 		if (line) *line = 0;

 		if (data) *data = "";

 		if (flags) *flags = 0;

 		return ERR_R_INTERNAL_ERROR;

 		}

 	if (es->bottom == es->top) return 0;

 	if (top)

 		i=es->top;			 /* last error */

 	else

 		i=(es->bottom+1)%ERR_NUM_ERRORS; /* first error */

 	ret=es->err_buffer[i];

 	if (inc)

 		{

 		es->bottom=i;

 		es->err_buffer[i]=0;

 		}

 	if ((file != NULL) && (line != NULL))

 		{

 		if (es->err_file[i] == NULL)

 			{

 			*file="NA";

 			if (line != NULL) *line=0;

 			}

 		else

 			{

 			*file=es->err_file[i];

 			if (line != NULL) *line=es->err_line[i];

 			}

 		}

 	if (data == NULL)

 		{

 		if (inc)

 			{

 			err_clear_data(es, i);

 			}

 		}

 	else

 		{

 		if (es->err_data[i] == NULL)

 			{

 			*data="";

 			if (flags != NULL) *flags=0;

 			}

 		else

 			{

 			*data=es->err_data[i];

 			if (flags != NULL) *flags=es->err_data_flags[i];

 			}

 		}

 	return ret;

 	}

 EXPORT_C void ERR_error_string_n(unsigned long e, char *buf, size_t len)

 	{

 	char lsbuf[64], fsbuf[64], rsbuf[64];

 	const char *ls,*fs,*rs;

 	unsigned long l,f,r;

 	l=ERR_GET_LIB(e);

 	f=ERR_GET_FUNC(e);

 	r=ERR_GET_REASON(e);

 	ls=ERR_lib_error_string(e);

 	fs=ERR_func_error_string(e);

 	rs=ERR_reason_error_string(e);

 	if (ls == NULL) 

 		BIO_snprintf(lsbuf, sizeof(lsbuf), "lib(%lu)", l);

 	if (fs == NULL)

 		BIO_snprintf(fsbuf, sizeof(fsbuf), "func(%lu)", f);

 	if (rs == NULL)

 		BIO_snprintf(rsbuf, sizeof(rsbuf), "reason(%lu)", r);

 	BIO_snprintf(buf, len,"error:%08lX:%s:%s:%s", e, ls?ls:lsbuf, 

 		fs?fs:fsbuf, rs?rs:rsbuf);

 	if (strlen(buf) == len-1)

 		{

 		/* output may be truncated; make sure we always have 5 

 		 * colon-separated fields, i.e. 4 colons ... */

 #define NUM_COLONS 4

 		if (len > NUM_COLONS) /* ... if possible */

 			{

 			int i;

 			char *s = buf;

 			for (i = 0; i < NUM_COLONS; i++)

 				{

 				char *colon = strchr(s, ':');

 				if (colon == NULL || colon > &buf[len-1] - NUM_COLONS + i)

 					{

 					/* set colon no. i at last possible position

 					 * (buf[len-1] is the terminating 0)*/

 					colon = &buf[len-1] - NUM_COLONS + i;

 					*colon = ':';

 					}

 				s = colon + 1;

 				}

 			}

 		}

 	}

 #ifdef EMULATOR	

 GET_STATIC_ARRAY_FROM_TLS(buf,err,char)

 #define buf (GET_WSD_VAR_NAME(buf,err, s)())

 #endif	

 /* BAD for multi-threading: uses a local buffer if ret == NULL */

 /* ERR_error_string_n should be used instead for ret != NULL

  * as ERR_error_string cannot know how large the buffer is */

 EXPORT_C char *ERR_error_string(unsigned long e, char *ret)

 	{

 #ifndef EMULATOR	

 	static char buf[256];

 #endif	

 	if (ret == NULL) ret=buf;

 	ERR_error_string_n(e, ret, 256);

 	return ret;

 	}

 EXPORT_C LHASH *ERR_get_string_table(void)

 	{

 	err_fns_check();

 	return ERRFN(err_get)(0);

 	}

 EXPORT_C LHASH *ERR_get_err_state_table(void)

 	{

 	err_fns_check();

 	return ERRFN(thread_get)(0);

 	}

 EXPORT_C void ERR_release_err_state_table(LHASH **hash)

 	{

 	err_fns_check();

 	ERRFN(thread_release)(hash);

 	}

 EXPORT_C const char *ERR_lib_error_string(unsigned long e)

 	{

 	ERR_STRING_DATA d,*p;

 	unsigned long l;

 	err_fns_check();

 	l=ERR_GET_LIB(e);

 	d.error=ERR_PACK(l,0,0);

 	p=ERRFN(err_get_item)(&d);

 	return((p == NULL)?NULL:p->string);

 	}

 EXPORT_C const char *ERR_func_error_string(unsigned long e)

 	{

 	ERR_STRING_DATA d,*p;

 	unsigned long l,f;

 	err_fns_check();

 	l=ERR_GET_LIB(e);

 	f=ERR_GET_FUNC(e);

 	d.error=ERR_PACK(l,f,0);

 	p=ERRFN(err_get_item)(&d);

 	return((p == NULL)?NULL:p->string);

 	}

 EXPORT_C const char *ERR_reason_error_string(unsigned long e)

 	{

 	ERR_STRING_DATA d,*p=NULL;

 	unsigned long l,r;

 	err_fns_check();

 	l=ERR_GET_LIB(e);

 	r=ERR_GET_REASON(e);

 	d.error=ERR_PACK(l,0,r);

 	p=ERRFN(err_get_item)(&d);

 	if (!p)

 		{

 		d.error=ERR_PACK(0,0,r);

 		p=ERRFN(err_get_item)(&d);

 		}

 	return((p == NULL)?NULL:p->string);

 	}

 /* static unsigned long err_hash(ERR_STRING_DATA *a) */

 static unsigned long err_hash(const void *a_void)

 	{

 	unsigned long ret,l;

 	l=((const ERR_STRING_DATA *)a_void)->error;

 	ret=l^ERR_GET_LIB(l)^ERR_GET_FUNC(l);

 	return(ret^ret%19*13);

 	}

 /* static int err_cmp(ERR_STRING_DATA *a, ERR_STRING_DATA *b) */

 static int err_cmp(const void *a_void, const void *b_void)

 	{

 	return((int)(((const ERR_STRING_DATA *)a_void)->error -

 			((const ERR_STRING_DATA *)b_void)->error));

 	}

 /* static unsigned long pid_hash(ERR_STATE *a) */

 static unsigned long pid_hash(const void *a_void)

 	{

 	return(((const ERR_STATE *)a_void)->pid*13);

 	}

 /* static int pid_cmp(ERR_STATE *a, ERR_STATE *b) */

 static int pid_cmp(const void *a_void, const void *b_void)

 	{

 	return((int)((long)((const ERR_STATE *)a_void)->pid -

 			(long)((const ERR_STATE *)b_void)->pid));

 	}

 EXPORT_C void ERR_remove_state(unsigned long pid)

 	{

 	ERR_STATE tmp;

 	err_fns_check();

 	if (pid == 0)

 		pid=(unsigned long)CRYPTO_thread_id();

 	tmp.pid=pid;

 	/* thread_del_item automatically destroys the LHASH if the number of

 	 * items reaches zero. */

 	ERRFN(thread_del_item)(&tmp);

 	}

 #ifdef EMULATOR

 GET_STATIC_VAR_FROM_TLS(fallback,err,ERR_STATE)

 #define fallback (*GET_WSD_VAR_NAME(fallback,err, s)())

 #endif

 EXPORT_C ERR_STATE *ERR_get_state(void)

 	{

 #ifndef EMULATOR	

 	static ERR_STATE fallback;

 #endif	

 	ERR_STATE *ret,tmp,*tmpp=NULL;

 	int i;

 	unsigned long pid;

 	err_fns_check();

 	pid=(unsigned long)CRYPTO_thread_id();

 	tmp.pid=pid;

 	ret=ERRFN(thread_get_item)(&tmp);

 	/* ret == the error state, if NULL, make a new one */

 	if (ret == NULL)

 		{

 		ret=(ERR_STATE *)OPENSSL_malloc(sizeof(ERR_STATE));

 		if (ret == NULL) return(&fallback);

 		ret->pid=pid;

 		ret->top=0;

 		ret->bottom=0;

 		for (i=0; i<ERR_NUM_ERRORS; i++)

 			{

 			ret->err_data[i]=NULL;

 			ret->err_data_flags[i]=0;

 			}

 		tmpp = ERRFN(thread_set_item)(ret);

 		/* To check if insertion failed, do a get. */

 		if (ERRFN(thread_get_item)(ret) != ret)

 			{

 			ERR_STATE_free(ret); /* could not insert it */

 			return(&fallback);

 			}

 		/* If a race occured in this function and we came second, tmpp

 		 * is the first one that we just replaced. */

 		if (tmpp)

 			ERR_STATE_free(tmpp);

 		}

 	return ret;

 	}

 EXPORT_C int ERR_get_next_error_library(void)

 	{

 	err_fns_check();

 	return ERRFN(get_next_lib)();

 	}

 EXPORT_C void ERR_set_error_data(char *data, int flags)

 	{

 	ERR_STATE *es;

 	int i;

 	es=ERR_get_state();

 	i=es->top;

 	if (i == 0)

 		i=ERR_NUM_ERRORS-1;

 	err_clear_data(es,i);

 	es->err_data[i]=data;

 	es->err_data_flags[i]=flags;

 	}

 EXPORT_C void ERR_add_error_data(int num, ...)

 	{

 	va_list args;

 	int i,n,s;

 	char *str,*p,*a;

 	s=80;

 	str=OPENSSL_malloc(s+1);

 	if (str == NULL) return;

 	str[0]='\0';

 	va_start(args, num);

 	n=0;

 	for (i=0; i<num; i++)

 		{

 		a=va_arg(args, char*);

 		/* ignore NULLs, thanks to Bob Beck <beck@obtuse.com> */

 		if (a != NULL)

 			{

 			n+=strlen(a);

 			if (n > s)

 				{

 				s=n+20;

 				p=OPENSSL_realloc(str,s+1);

 				if (p == NULL)

 					{

 					OPENSSL_free(str);

 					goto err;

 					}

 				else

 					str=p;

 				}

 			BUF_strlcat(str,a,(size_t)s+1);

 			}

 		}

 	ERR_set_error_data(str,ERR_TXT_MALLOCED|ERR_TXT_STRING);

 err:

 	va_end(args);

 	}

 EXPORT_C int ERR_set_mark(void)

 	{

 	ERR_STATE *es;

 	es=ERR_get_state();

 	if (es->bottom == es->top) return 0;

 	es->err_flags[es->top]|=ERR_FLAG_MARK;

 	return 1;

 	}

 EXPORT_C int ERR_pop_to_mark(void)

 	{

 	ERR_STATE *es;

 	es=ERR_get_state();

 	while(es->bottom != es->top

 		&& (es->err_flags[es->top] & ERR_FLAG_MARK) == 0)

 		{

 		err_clear(es,es->top);

 		es->top-=1;

 		if (es->top == -1) es->top=ERR_NUM_ERRORS;

 		}

 	if (es->bottom == es->top) return 0;

 	es->err_flags[es->top]&=~ERR_FLAG_MARK;

 	return 1;

 	}