/* crypto/crypto.h *//* 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.] */#ifndef HEADER_CRYPTO_H#define HEADER_CRYPTO_H#include <stdlib.h>#ifndef OPENSSL_NO_FP_API#include <stdio.h>#endif#include <openssl/stack.h>#include <openssl/safestack.h>#include <openssl/opensslv.h>#ifdef CHARSET_EBCDIC#include <openssl/ebcdic.h>#endif/* Resolve problems on some operating systems with symbol names that clash   one way or another */#include <openssl/symhacks.h>#ifdef  __cplusplusextern "C" {#endif/* Backward compatibility to SSLeay *//* This is more to be used to check the correct DLL is being used * in the MS world. */#define SSLEAY_VERSION_NUMBER	OPENSSL_VERSION_NUMBER#define SSLEAY_VERSION		0/* #define SSLEAY_OPTIONS	1 no longer supported */#define SSLEAY_CFLAGS		2#define SSLEAY_BUILT_ON		3#define SSLEAY_PLATFORM		4#define SSLEAY_DIR		5/* When changing the CRYPTO_LOCK_* list, be sure to maintin the text lock * names in cryptlib.c */#define CRYPTO_LOCK_ERR			1#define CRYPTO_LOCK_EX_DATA		2#define CRYPTO_LOCK_X509		3#define CRYPTO_LOCK_X509_INFO		4#define CRYPTO_LOCK_X509_PKEY		5#define CRYPTO_LOCK_X509_CRL		6#define CRYPTO_LOCK_X509_REQ		7#define CRYPTO_LOCK_DSA			8#define CRYPTO_LOCK_RSA			9#define CRYPTO_LOCK_EVP_PKEY		10#define CRYPTO_LOCK_X509_STORE		11#define CRYPTO_LOCK_SSL_CTX		12#define CRYPTO_LOCK_SSL_CERT		13#define CRYPTO_LOCK_SSL_SESSION		14#define CRYPTO_LOCK_SSL_SESS_CERT	15#define CRYPTO_LOCK_SSL			16#define CRYPTO_LOCK_SSL_METHOD		17#define CRYPTO_LOCK_RAND		18#define CRYPTO_LOCK_RAND2		19#define CRYPTO_LOCK_MALLOC		20#define CRYPTO_LOCK_BIO			21#define CRYPTO_LOCK_GETHOSTBYNAME	22#define CRYPTO_LOCK_GETSERVBYNAME	23#define CRYPTO_LOCK_READDIR		24#define CRYPTO_LOCK_RSA_BLINDING	25#define CRYPTO_LOCK_DH			26#define CRYPTO_LOCK_MALLOC2		27#define CRYPTO_LOCK_DSO			28#define CRYPTO_LOCK_DYNLOCK		29#define CRYPTO_LOCK_ENGINE		30#define CRYPTO_LOCK_UI			31#define CRYPTO_LOCK_HWCRHK		32	/* This is a HACK which will disappear in 0.9.8 */#define CRYPTO_NUM_LOCKS		33#define CRYPTO_LOCK		1#define CRYPTO_UNLOCK		2#define CRYPTO_READ		4#define CRYPTO_WRITE		8#ifndef OPENSSL_NO_LOCKING#ifndef CRYPTO_w_lock#define CRYPTO_w_lock(type)	\	CRYPTO_lock(CRYPTO_LOCK|CRYPTO_WRITE,type,__FILE__,__LINE__)#define CRYPTO_w_unlock(type)	\	CRYPTO_lock(CRYPTO_UNLOCK|CRYPTO_WRITE,type,__FILE__,__LINE__)#define CRYPTO_r_lock(type)	\	CRYPTO_lock(CRYPTO_LOCK|CRYPTO_READ,type,__FILE__,__LINE__)#define CRYPTO_r_unlock(type)	\	CRYPTO_lock(CRYPTO_UNLOCK|CRYPTO_READ,type,__FILE__,__LINE__)#define CRYPTO_add(addr,amount,type)	\	CRYPTO_add_lock(addr,amount,type,__FILE__,__LINE__)#endif#else#define CRYPTO_w_lock(a)#define CRYPTO_w_unlock(a)#define CRYPTO_r_lock(a)#define CRYPTO_r_unlock(a)#define CRYPTO_add(a,b,c)	((*(a))+=(b))#endif/* Some applications as well as some parts of OpenSSL need to allocate   and deallocate locks in a dynamic fashion.  The following typedef   makes this possible in a type-safe manner.  *//* struct CRYPTO_dynlock_value has to be defined by the application. */    typedef struct {	int references;	struct CRYPTO_dynlock_value *data;    } CRYPTO_dynlock;/* The following can be used to detect memory leaks in the SSLeay library. * It used, it turns on malloc checking */#define CRYPTO_MEM_CHECK_OFF	0x0	/* an enume */#define CRYPTO_MEM_CHECK_ON	0x1	/* a bit */#define CRYPTO_MEM_CHECK_ENABLE	0x2	/* a bit */#define CRYPTO_MEM_CHECK_DISABLE 0x3	/* an enume *//* The following are bit values to turn on or off options connected to the * malloc checking functionality *//* Adds time to the memory checking information */#define V_CRYPTO_MDEBUG_TIME	0x1	/* a bit *//* Adds thread number to the memory checking information */#define V_CRYPTO_MDEBUG_THREAD	0x2	/* a bit */#define V_CRYPTO_MDEBUG_ALL (V_CRYPTO_MDEBUG_TIME | V_CRYPTO_MDEBUG_THREAD)/* predec of the BIO type */    typedef struct bio_st BIO_dummy;    typedef struct crypto_ex_data_st {	STACK *sk;	int dummy;		/* gcc is screwing up this data structure :-( */    } CRYPTO_EX_DATA;/* Called when a new object is created */    typedef int CRYPTO_EX_new(void *parent, void *ptr, CRYPTO_EX_DATA * ad,			      int idx, long argl, void *argp);/* Called when an object is free()ed */    typedef void CRYPTO_EX_free(void *parent, void *ptr,				CRYPTO_EX_DATA * ad, int idx, long argl,				void *argp);/* Called when we need to dup an object */    typedef int CRYPTO_EX_dup(CRYPTO_EX_DATA * to, CRYPTO_EX_DATA * from,			      void *from_d, int idx, long argl,			      void *argp);/* This stuff is basically class callback functions * The current classes are SSL_CTX, SSL, SSL_SESSION, and a few more */    typedef struct crypto_ex_data_func_st {	long argl;		/* Arbitary long */	void *argp;		/* Arbitary void * */	CRYPTO_EX_new *new_func;	CRYPTO_EX_free *free_func;	CRYPTO_EX_dup *dup_func;    } CRYPTO_EX_DATA_FUNCS;     DECLARE_STACK_OF(CRYPTO_EX_DATA_FUNCS)/* Per class, we have a STACK of CRYPTO_EX_DATA_FUNCS for each CRYPTO_EX_DATA * entry. */#define CRYPTO_EX_INDEX_BIO		0#define CRYPTO_EX_INDEX_SSL		1#define CRYPTO_EX_INDEX_SSL_CTX		2#define CRYPTO_EX_INDEX_SSL_SESSION	3#define CRYPTO_EX_INDEX_X509_STORE	4#define CRYPTO_EX_INDEX_X509_STORE_CTX	5#define CRYPTO_EX_INDEX_RSA		6#define CRYPTO_EX_INDEX_DSA		7#define CRYPTO_EX_INDEX_DH		8#define CRYPTO_EX_INDEX_ENGINE		9#define CRYPTO_EX_INDEX_X509		10#define CRYPTO_EX_INDEX_UI		11/* Dynamically assigned indexes start from this value (don't use directly, use * via CRYPTO_ex_data_new_class). */#define CRYPTO_EX_INDEX_USER		100/* This is the default callbacks, but we can have others as well: * this is needed in Win32 where the application malloc and the * library malloc may not be the same. */#define CRYPTO_malloc_init()	CRYPTO_set_mem_functions(\	malloc, realloc, free)#if defined CRYPTO_MDEBUG_ALL || defined CRYPTO_MDEBUG_TIME || defined CRYPTO_MDEBUG_THREAD# ifndef CRYPTO_MDEBUG		/* avoid duplicate #define */#  define CRYPTO_MDEBUG# endif#endif/* Set standard debugging functions (not done by default * unless CRYPTO_MDEBUG is defined) */#define CRYPTO_malloc_debug_init()	do {\	CRYPTO_set_mem_debug_functions(\		CRYPTO_dbg_malloc,\