ssl.h

/* ssl/ssl.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_SSL_H 
#define HEADER_SSL_H 

#ifndef NO_COMP
#include <openssl/comp.h>
#endif
#ifndef NO_BIO
#include <openssl/bio.h>
#endif
#ifndef NO_X509
#include <openssl/x509.h>
#endif
#include <openssl/safestack.h>

#ifdef  __cplusplus
extern "C" {
#endif

/* SSLeay version number for ASN.1 encoding of the session information */
/* Version 0 - initial version
 * Version 1 - added the optional peer certificate
 */
#define SSL_SESSION_ASN1_VERSION 0x0001

/* text strings for the ciphers */
#define SSL_TXT_NULL_WITH_MD5		SSL2_TXT_NULL_WITH_MD5			
#define SSL_TXT_RC4_128_WITH_MD5	SSL2_TXT_RC4_128_WITH_MD5		
#define SSL_TXT_RC4_128_EXPORT40_WITH_MD5 SSL2_TXT_RC4_128_EXPORT40_WITH_MD5	
#define SSL_TXT_RC2_128_CBC_WITH_MD5	SSL2_TXT_RC2_128_CBC_WITH_MD5		
#define SSL_TXT_RC2_128_CBC_EXPORT40_WITH_MD5 SSL2_TXT_RC2_128_CBC_EXPORT40_WITH_MD5	
#define SSL_TXT_IDEA_128_CBC_WITH_MD5	SSL2_TXT_IDEA_128_CBC_WITH_MD5		
#define SSL_TXT_DES_64_CBC_WITH_MD5	SSL2_TXT_DES_64_CBC_WITH_MD5		
#define SSL_TXT_DES_64_CBC_WITH_SHA	SSL2_TXT_DES_64_CBC_WITH_SHA		
#define SSL_TXT_DES_192_EDE3_CBC_WITH_MD5 SSL2_TXT_DES_192_EDE3_CBC_WITH_MD5	
#define SSL_TXT_DES_192_EDE3_CBC_WITH_SHA SSL2_TXT_DES_192_EDE3_CBC_WITH_SHA	

#define SSL_MAX_SSL_SESSION_ID_LENGTH		32
#define SSL_MAX_SID_CTX_LENGTH			32

#define SSL_MIN_RSA_MODULUS_LENGTH_IN_BYTES	(512/8)
#define SSL_MAX_KEY_ARG_LENGTH			8
#define SSL_MAX_MASTER_KEY_LENGTH		48

/* These are used to specify which ciphers to use and not to use */
#define SSL_TXT_LOW		"LOW"
#define SSL_TXT_MEDIUM		"MEDIUM"
#define SSL_TXT_HIGH		"HIGH"
#define SSL_TXT_kFZA		"kFZA"
#define	SSL_TXT_aFZA		"aFZA"
#define SSL_TXT_eFZA		"eFZA"
#define SSL_TXT_FZA		"FZA"

#define	SSL_TXT_aNULL		"aNULL"
#define	SSL_TXT_eNULL		"eNULL"
#define	SSL_TXT_NULL		"NULL"

#define SSL_TXT_kRSA		"kRSA"
#define SSL_TXT_kDHr		"kDHr"
#define SSL_TXT_kDHd		"kDHd"
#define SSL_TXT_kEDH		"kEDH"
#define	SSL_TXT_aRSA		"aRSA"
#define	SSL_TXT_aDSS		"aDSS"
#define	SSL_TXT_aDH		"aDH"
#define	SSL_TXT_DSS		"DSS"
#define SSL_TXT_DH		"DH"
#define SSL_TXT_EDH		"EDH"
#define SSL_TXT_ADH		"ADH"
#define SSL_TXT_RSA		"RSA"
#define SSL_TXT_DES		"DES"
#define SSL_TXT_3DES		"3DES"
#define SSL_TXT_RC4		"RC4"
#define SSL_TXT_RC2		"RC2"
#define SSL_TXT_IDEA		"IDEA"
#define SSL_TXT_MD5		"MD5"
#define SSL_TXT_SHA1		"SHA1"
#define SSL_TXT_SHA		"SHA"
#define SSL_TXT_EXP		"EXP"
#define SSL_TXT_EXPORT		"EXPORT"
#define SSL_TXT_EXP40		"EXPORT40"
#define SSL_TXT_EXP56		"EXPORT56"
#define SSL_TXT_SSLV2		"SSLv2"
#define SSL_TXT_SSLV3		"SSLv3"
#define SSL_TXT_TLSV1		"TLSv1"
#define SSL_TXT_ALL		"ALL"

/* 'DEFAULT' at the start of the cipher list insert the following string
 * in addition to this being the default cipher string */
#define SSL_DEFAULT_CIPHER_LIST	"ALL:!ADH:RC4+RSA:+SSLv2:@STRENGTH"

/* Used in SSL_set_shutdown()/SSL_get_shutdown(); */
#define SSL_SENT_SHUTDOWN	1
#define SSL_RECEIVED_SHUTDOWN	2

#ifdef __cplusplus
}
#endif

#include <openssl/crypto.h>
#include <openssl/lhash.h>
#include <openssl/buffer.h>
#include <openssl/bio.h>
#include <openssl/pem.h>
#include <openssl/x509.h>

#ifdef  __cplusplus
extern "C" {
#endif

#if (defined(NO_RSA) || defined(NO_MD5)) && !defined(NO_SSL2)
#define NO_SSL2
#endif

#define SSL_FILETYPE_ASN1	X509_FILETYPE_ASN1
#define SSL_FILETYPE_PEM	X509_FILETYPE_PEM

/* This is needed to stop compilers complaining about the
 * 'struct ssl_st *' function parameters used to prototype callbacks
 * in SSL_CTX. */
typedef struct ssl_st *ssl_crock_st;

/* used to hold info on the particular ciphers used */
typedef struct ssl_cipher_st
	{
	int valid;
	const char *name;		/* text name */
	unsigned long id;		/* id, 4 bytes, first is version */
	unsigned long algorithms;	/* what ciphers are used */
	unsigned long algo_strength;	/* strength and export flags */
	unsigned long algorithm2;	/* Extra flags */
	int strength_bits;		/* Number of bits really used */
	int alg_bits;			/* Number of bits for algorithm */
	unsigned long mask;		/* used for matching */
	unsigned long mask_strength;	/* also used for matching */
	} SSL_CIPHER;

DECLARE_STACK_OF(SSL_CIPHER)

typedef struct ssl_st SSL;
typedef struct ssl_ctx_st SSL_CTX;

/* Used to hold functions for SSLv2 or SSLv3/TLSv1 functions */
typedef struct ssl_method_st
	{
	int version;
	int (*ssl_new)(SSL *s);
	void (*ssl_clear)(SSL *s);
	void (*ssl_free)(SSL *s);
	int (*ssl_accept)(SSL *s);
	int (*ssl_connect)(SSL *s);
	int (*ssl_read)(SSL *s,void *buf,int len);
	int (*ssl_peek)(SSL *s,char *buf,int len);
	int (*ssl_write)(SSL *s,const void *buf,int len);
	int (*ssl_shutdown)(SSL *s);
	int (*ssl_renegotiate)(SSL *s);
	int (*ssl_renegotiate_check)(SSL *s);
	long (*ssl_ctrl)(SSL *s,int cmd,long larg,char *parg);
	long (*ssl_ctx_ctrl)(SSL_CTX *ctx,int cmd,long larg,char *parg);
	SSL_CIPHER *(*get_cipher_by_char)(const unsigned char *ptr);
	int (*put_cipher_by_char)(const SSL_CIPHER *cipher,unsigned char *ptr);
	int (*ssl_pending)(SSL *s);
	int (*num_ciphers)(void);
	SSL_CIPHER *(*get_cipher)(unsigned ncipher);
	struct ssl_method_st *(*get_ssl_method)(int version);
	long (*get_timeout)(void);
	struct ssl3_enc_method *ssl3_enc; /* Extra SSLv3/TLS stuff */
	int (*ssl_version)();
	long (*ssl_callback_ctrl)(SSL *s, int cb_id, void (*fp)());
	long (*ssl_ctx_callback_ctrl)(SSL_CTX *s, int cb_id, void (*fp)());
	} SSL_METHOD;

/* Lets make this into an ASN.1 type structure as follows
 * SSL_SESSION_ID ::= SEQUENCE {
 *	version 		INTEGER,	-- structure version number
 *	SSLversion 		INTEGER,	-- SSL version number
 *	Cipher 			OCTET_STRING,	-- the 3 byte cipher ID
 *	Session_ID 		OCTET_STRING,	-- the Session ID
 *	Master_key 		OCTET_STRING,	-- the master key
 *	Key_Arg [ 0 ] IMPLICIT	OCTET_STRING,	-- the optional Key argument
 *	Time [ 1 ] EXPLICIT	INTEGER,	-- optional Start Time
 *	Timeout [ 2 ] EXPLICIT	INTEGER,	-- optional Timeout ins seconds
 *	Peer [ 3 ] EXPLICIT	X509,		-- optional Peer Certificate
 *	Session_ID_context [ 4 ] EXPLICIT OCTET_STRING,   -- the Session ID context
 *	Verify_result [ 5 ] EXPLICIT INTEGER    -- X509_V_... code for `Peer'
 *	Compression [6] IMPLICIT ASN1_OBJECT	-- compression OID XXXXX
 *	}
 * Look in ssl/ssl_asn1.c for more details
 * I'm using EXPLICIT tags so I can read the damn things using asn1parse :-).
 */
typedef struct ssl_session_st
	{
	int ssl_version;	/* what ssl version session info is
				 * being kept in here? */

	/* only really used in SSLv2 */
	unsigned int key_arg_length;
	unsigned char key_arg[SSL_MAX_KEY_ARG_LENGTH];
	int master_key_length;
	unsigned char master_key[SSL_MAX_MASTER_KEY_LENGTH];
	/* session_id - valid? */
	unsigned int session_id_length;
	unsigned char session_id[SSL_MAX_SSL_SESSION_ID_LENGTH];
	/* this is used to determine whether the session is being reused in
	 * the appropriate context. It is up to the application to set this,
	 * via SSL_new */
	unsigned int sid_ctx_length;
	unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];

	int not_resumable;

	/* The cert is the certificate used to establish this connection */
	struct sess_cert_st /* SESS_CERT */ *sess_cert;

	/* This is the cert for the other end.
	 * On clients, it will be the same as sess_cert->peer_key->x509
	 * (the latter is not enough as sess_cert is not retained
	 * in the external representation of sessions, see ssl_asn1.c). */
	X509 *peer;
	/* when app_verify_callback accepts a session where the peer's certificate
	 * is not ok, we must remember the error for session reuse: */
	long verify_result; /* only for servers */

	int references;
	long timeout;
	long time;

	int compress_meth;		/* Need to lookup the method */

	SSL_CIPHER *cipher;
	unsigned long cipher_id;	/* when ASN.1 loaded, this
					 * needs to be used to load
					 * the 'cipher' structure */

	STACK_OF(SSL_CIPHER) *ciphers; /* shared ciphers? */

	CRYPTO_EX_DATA ex_data; /* application specific data */

	/* These are used to make removal of session-ids more
	 * efficient and to implement a maximum cache size. */
	struct ssl_session_st *prev,*next;
	} SSL_SESSION;

#define SSL_OP_MICROSOFT_SESS_ID_BUG			0x00000001L
#define SSL_OP_NETSCAPE_CHALLENGE_BUG			0x00000002L
#define SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG		0x00000008L
#define SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG		0x00000010L
#define SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER		0x00000020L
#define SSL_OP_MSIE_SSLV2_RSA_PADDING			0x00000040L
#define SSL_OP_SSLEAY_080_CLIENT_DH_BUG			0x00000080L
#define SSL_OP_TLS_D5_BUG				0x00000100L
#define SSL_OP_TLS_BLOCK_PADDING_BUG			0x00000200L
#define SSL_OP_TLS_ROLLBACK_BUG				0x00000400L

/* If set, always create a new key when using tmp_dh parameters */
#define SSL_OP_SINGLE_DH_USE				0x00100000L
/* Set to also use the tmp_rsa key when doing RSA operations. */
#define SSL_OP_EPHEMERAL_RSA				0x00200000L

/* The next flag deliberately changes the ciphertest, this is a check
 * for the PKCS#1 attack */
#define SSL_OP_PKCS1_CHECK_1				0x08000000L
#define SSL_OP_PKCS1_CHECK_2				0x10000000L
#define SSL_OP_NETSCAPE_CA_DN_BUG			0x20000000L
/* SSL_OP_NON_EXPORT_FIRST looks utterly broken .. */
#define SSL_OP_NON_EXPORT_FIRST 			0x40000000L
#define SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG		0x80000000L
#define SSL_OP_ALL					0x000FFFFFL

#define SSL_OP_NO_SSLv2					0x01000000L
#define SSL_OP_NO_SSLv3					0x02000000L
#define SSL_OP_NO_TLSv1					0x04000000L

/* Allow SSL_write(..., n) to return r with 0 < r < n (i.e. report success
 * when just a single record has been written): */
#define SSL_MODE_ENABLE_PARTIAL_WRITE       0x00000001L
/* Make it possible to retry SSL_write() with changed buffer location
 * (buffer contents must stay the same!); this is not the default to avoid
 * the misconception that non-blocking SSL_write() behaves like
 * non-blocking write(): */
#define SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER 0x00000002L
/* Never bother the application with retries if the transport
 * is blocking: */
#define SSL_MODE_AUTO_RETRY 0x00000004L

/* Note: SSL[_CTX]_set_{options,mode} use |= op on the previous value,
 * they cannot be used to clear bits. */

#define SSL_CTX_set_options(ctx,op) \
	SSL_CTX_ctrl(ctx,SSL_CTRL_OPTIONS,op,NULL)
#define SSL_CTX_get_options(ctx) \
	SSL_CTX_ctrl(ctx,SSL_CTRL_OPTIONS,0,NULL)
#define SSL_set_options(ssl,op) \
	SSL_ctrl(ssl,SSL_CTRL_OPTIONS,op,NULL)
#define SSL_get_options(ssl) \
        SSL_ctrl(ssl,SSL_CTRL_OPTIONS,0,NULL)

#define SSL_CTX_set_mode(ctx,op) \
	SSL_CTX_ctrl(ctx,SSL_CTRL_MODE,op,NULL)
#define SSL_CTX_get_mode(ctx) \
	SSL_CTX_ctrl(ctx,SSL_CTRL_MODE,0,NULL)
#define SSL_set_mode(ssl,op) \
	SSL_ctrl(ssl,SSL_CTRL_MODE,op,NULL)
#define SSL_get_mode(ssl) \
        SSL_ctrl(ssl,SSL_CTRL_MODE,0,NULL)

#define SSL_SESSION_CACHE_MAX_SIZE_DEFAULT	(1024*20)

typedef struct ssl_comp_st
	{
	int id;
	char *name;
#ifndef NO_COMP
	COMP_METHOD *method;
#else
	char *method;
#endif
	} SSL_COMP;

DECLARE_STACK_OF(SSL_COMP)

struct ssl_ctx_st
	{
	SSL_METHOD *method;
	unsigned long options;
	unsigned long mode;

	STACK_OF(SSL_CIPHER) *cipher_list;
	/* same as above but sorted for lookup */
	STACK_OF(SSL_CIPHER) *cipher_list_by_id;

	struct x509_store_st /* X509_STORE */ *cert_store;
	struct lhash_st /* LHASH */ *sessions;	/* a set of SSL_SESSIONs */
	/* Most session-ids that will be cached, default is
	 * SSL_SESSION_CACHE_MAX_SIZE_DEFAULT. 0 is unlimited. */
	unsigned long session_cache_size;
	struct ssl_session_st *session_cache_head;
	struct ssl_session_st *session_cache_tail;

	/* This can have one of 2 values, ored together,
	 * SSL_SESS_CACHE_CLIENT,
	 * SSL_SESS_CACHE_SERVER,
	 * Default is SSL_SESSION_CACHE_SERVER, which means only
	 * SSL_accept which cache SSL_SESSIONS. */
	int session_cache_mode;

	/* If timeout is not 0, it is the default timeout value set
	 * when SSL_new() is called.  This has been put in to make
	 * life easier to set things up */
	long session_timeout;

	/* If this callback is not null, it will be called each
	 * time a session id is added to the cache.  If this function
	 * returns 1, it means that the callback will do a
	 * SSL_SESSION_free() when it has finished using it.  Otherwise,
	 * on 0, it means the callback has finished with it.
	 * If remove_session_cb is not null, it will be called when
	 * a session-id is removed from the cache.  After the call,
	 * OpenSSL will SSL_SESSION_free() it. */
	int (*new_session_cb)(struct ssl_st *ssl,SSL_SESSION *sess);
	void (*remove_session_cb)(struct ssl_ctx_st *ctx,SSL_SESSION *sess);
	SSL_SESSION *(*get_session_cb)(struct ssl_st *ssl,
		unsigned char *data,int len,int *copy);
	struct
		{
		int sess_connect;	/* SSL new conn - started */
		int sess_connect_renegotiate;/* SSL reneg - requested */
		int sess_connect_good;	/* SSL new conne/reneg - finished */
		int sess_accept;	/* SSL new accept - started */
		int sess_accept_renegotiate;/* SSL reneg - requested */
		int sess_accept_good;	/* SSL accept/reneg - finished */
		int sess_miss;		/* session lookup misses  */
		int sess_timeout;	/* reuse attempt on timeouted session */
		int sess_cache_full;	/* session removed due to full cache */
		int sess_hit;		/* session reuse actually done */
		int sess_cb_hit;	/* session-id that was not
					 * in the cache was
					 * passed back via the callback.  This
					 * indicates that the application is
					 * supplying session-id's from other
					 * processes - spooky :-) */
		} stats;

	int references;

/**/	void (*info_callback)();

	/* if defined, these override the X509_verify_cert() calls */
/**/	int (*app_verify_callback)();
/**/	char *app_verify_arg; /* never used; should be void * */

	/* default values to use in SSL structures */
/**/	struct cert_st /* CERT */ *cert;
/**/	int read_ahead;
/**/	int verify_mode;
/**/	int verify_depth;
/**/	unsigned int sid_ctx_length;
/**/	unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
/**/	int (*default_verify_callback)(int ok,X509_STORE_CTX *ctx);

	int purpose;		/* Purpose setting */
	int trust;		/* Trust setting */

	/* Default password callback. */
/**/	pem_password_cb *default_passwd_callback;

	/* Default password callback user data. */
/**/	void *default_passwd_callback_userdata;

	/* get client cert callback */
/**/	int (*client_cert_cb)(/* SSL *ssl, X509 **x509, EVP_PKEY **pkey */);

	/* what we put in client cert requests */
	STACK_OF(X509_NAME) *client_CA;

/**/	int quiet_shutdown;

	CRYPTO_EX_DATA ex_data;

	const EVP_MD *rsa_md5;/* For SSLv2 - name is 'ssl2-md5' */
	const EVP_MD *md5;	/* For SSLv3/TLSv1 'ssl3-md5' */
	const EVP_MD *sha1;   /* For SSLv3/TLSv1 'ssl3->sha1' */

	STACK_OF(X509) *extra_certs;
        STACK_OF(SSL_COMP) *comp_methods; /* stack of SSL_COMP, SSLv3/TLSv1 */
	};

#define SSL_SESS_CACHE_OFF			0x0000
#define SSL_SESS_CACHE_CLIENT			0x0001
#define SSL_SESS_CACHE_SERVER			0x0002
#define SSL_SESS_CACHE_BOTH	(SSL_SESS_CACHE_CLIENT|SSL_SESS_CACHE_SERVER)
#define SSL_SESS_CACHE_NO_AUTO_CLEAR		0x0080
/* This one, when set, makes the server session-id lookup not look
 * in the cache.  If there is an application get_session callback
 * defined, this will still get called. */
#define SSL_SESS_CACHE_NO_INTERNAL_LOOKUP	0x0100

  struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx);
#define SSL_CTX_sess_number(ctx) \
	SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_NUMBER,0,NULL)
#define SSL_CTX_sess_connect(ctx) \
	SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_CONNECT,0,NULL)
#define SSL_CTX_sess_connect_good(ctx) \
	SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_CONNECT_GOOD,0,NULL)
#define SSL_CTX_sess_connect_renegotiate(ctx) \
	SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_CONNECT_RENEGOTIATE,0,NULL)
#define SSL_CTX_sess_accept(ctx) \
	SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_ACCEPT,0,NULL)
#define SSL_CTX_sess_accept_renegotiate(ctx) \
	SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_ACCEPT_RENEGOTIATE,0,NULL)
#define SSL_CTX_sess_accept_good(ctx) \
	SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_ACCEPT_GOOD,0,NULL)
#define SSL_CTX_sess_hits(ctx) \
	SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_HIT,0,NULL)
#define SSL_CTX_sess_cb_hits(ctx) \
	SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_CB_HIT,0,NULL)
#define SSL_CTX_sess_misses(ctx) \
	SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_MISSES,0,NULL)
#define SSL_CTX_sess_timeouts(ctx) \
	SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_TIMEOUTS,0,NULL)
#define SSL_CTX_sess_cache_full(ctx) \
	SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_CACHE_FULL,0,NULL)

#define SSL_CTX_sess_set_new_cb(ctx,cb)	((ctx)->new_session_cb=(cb))
#define SSL_CTX_sess_get_new_cb(ctx)	((ctx)->new_session_cb)
#define SSL_CTX_sess_set_remove_cb(ctx,cb)	((ctx)->remove_session_cb=(cb))
#define SSL_CTX_sess_get_remove_cb(ctx)	((ctx)->remove_session_cb)
#define SSL_CTX_sess_set_get_cb(ctx,cb)	((ctx)->get_session_cb=(cb))
#define SSL_CTX_sess_get_get_cb(ctx)	((ctx)->get_session_cb)
#define SSL_CTX_set_info_callback(ctx,cb)	((ctx)->info_callback=(cb))
#define SSL_CTX_get_info_callback(ctx)		((ctx)->info_callback)
#define SSL_CTX_set_client_cert_cb(ctx,cb)	((ctx)->client_cert_cb=(cb))
#define SSL_CTX_get_client_cert_cb(ctx)		((ctx)->client_cert_cb)

#define SSL_NOTHING	1
#define SSL_WRITING	2
#define SSL_READING	3
#define SSL_X509_LOOKUP	4

/* These will only be used when doing non-blocking IO */
#define SSL_want_nothing(s)	(SSL_want(s) == SSL_NOTHING)
#define SSL_want_read(s)	(SSL_want(s) == SSL_READING)
#define SSL_want_write(s)	(SSL_want(s) == SSL_WRITING)
#define SSL_want_x509_lookup(s)	(SSL_want(s) == SSL_X509_LOOKUP)

struct ssl_st
	{
	/* protocol version
	 * (one of SSL2_VERSION, SSL3_VERSION, TLS1_VERSION)
	 */
	int version;
	int type; /* SSL_ST_CONNECT or SSL_ST_ACCEPT */

	SSL_METHOD *method; /* SSLv3 */

	/* There are 2 BIO's even though they are normally both the
	 * same.  This is so data can be read and written to different
	 * handlers */

#ifndef NO_BIO
	BIO *rbio; /* used by SSL_read */
	BIO *wbio; /* used by SSL_write */
	BIO *bbio; /* used during session-id reuse to concatenate
		    * messages */
#else
	char *rbio; /* used by SSL_read */
	char *wbio; /* used by SSL_write */
	char *bbio;
#endif
	/* This holds a variable that indicates what we were doing
	 * when a 0 or -1 is returned.  This is needed for
	 * non-blocking IO so we know what request needs re-doing when
	 * in SSL_accept or SSL_connect */
	int rwstate;

	/* true when we are actually in SSL_accept() or SSL_connect() */
	int in_handshake;
	int (*handshake_func)();

	/* Imagine that here's a boolean member "init" that is
	 * switched as soon as SSL_set_{accept/connect}_state
	 * is called for the first time, so that "state" and
	 * "handshake_func" are properly initialized.  But as
	 * handshake_func is == 0 until then, we use this
	 * test instead of an "init" member.
	 */

	int server;	/* are we the server side? - mostly used by SSL_clear*/

	int new_session;/* 1 if we are to use a new session */
	int quiet_shutdown;/* don't send shutdown packets */
	int shutdown;	/* we have shut things down, 0x01 sent, 0x02
			 * for received */
	int state;	/* where we are */
	int rstate;	/* where we are when reading */

	BUF_MEM *init_buf;	/* buffer used during init */
	int init_num;		/* amount read/written */
	int init_off;		/* amount read/written */

	/* used internally to point at a raw packet */
	unsigned char *packet;
	unsigned int packet_length;

	struct ssl2_state_st *s2; /* SSLv2 variables */
	struct ssl3_state_st *s3; /* SSLv3 variables */

	int read_ahead;		/* Read as many input bytes as possible
	               	 	 * (for non-blocking reads) */
	int hit;		/* reusing a previous session */

	int purpose;		/* Purpose setting */
	int trust;		/* Trust setting */

	/* crypto */
	STACK_OF(SSL_CIPHER) *cipher_list;
	STACK_OF(SSL_CIPHER) *cipher_list_by_id;

	/* These are the ones being used, the ones in SSL_SESSION are
	 * the ones to be 'copied' into these ones */

	EVP_CIPHER_CTX *enc_read_ctx;		/* cryptographic state */
	const EVP_MD *read_hash;		/* used for mac generation */
#ifndef NO_COMP
	COMP_CTX *expand;			/* uncompress */
#else
	char *expand;
#endif

	EVP_CIPHER_CTX *enc_write_ctx;		/* cryptographic state */
	const EVP_MD *write_hash;		/* used for mac generation */
#ifndef NO_COMP
	COMP_CTX *compress;			/* compression */
#else
	char *compress;	
#endif

	/* session info */

	/* client cert? */
	/* This is used to hold the server certificate used */
	struct cert_st /* CERT */ *cert;

	/* the session_id_context is used to ensure sessions are only reused
	 * in the appropriate context */
	unsigned int sid_ctx_length;
	unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];

	/* This can also be in the session once a session is established */
	SSL_SESSION *session;

	/* Used in SSL2 and SSL3 */
	int verify_mode;	/* 0 don't care about verify failure.
				 * 1 fail if verify fails */
	int verify_depth;
	int (*verify_callback)(int ok,X509_STORE_CTX *ctx); /* fail if callback returns 0 */
	void (*info_callback)(); /* optional informational callback */

	int error;		/* error bytes to be written */
	int error_code;		/* actual code */

	SSL_CTX *ctx;
	/* set this flag to 1 and a sleep(1) is put into all SSL_read()
	 * and SSL_write() calls, good for nbio debuging :-) */
	int debug;	

	/* extra application data */
	long verify_result;
	CRYPTO_EX_DATA ex_data;

	/* for server side, keep the list of CA_dn we can use */
	STACK_OF(X509_NAME) *client_CA;

	int references;
	unsigned long options; /* protocol behaviour */
	unsigned long mode; /* API behaviour */
	int first_packet;
	int client_version;	/* what was passed, used for
				 * SSLv3/TLS rollback check */
	};

#ifdef __cplusplus
}
#endif

#include <openssl/ssl2.h>
#include <openssl/ssl3.h>
#include <openssl/tls1.h> /* This is mostly sslv3 with a few tweaks */
#include <openssl/ssl23.h>

#ifdef  __cplusplus
extern "C" {
#endif

/* compatibility */
#define SSL_set_app_data(s,arg)		(SSL_set_ex_data(s,0,(char *)arg))
#define SSL_get_app_data(s)		(SSL_get_ex_data(s,0))
#define SSL_SESSION_set_app_data(s,a)	(SSL_SESSION_set_ex_data(s,0,(char *)a))
#define SSL_SESSION_get_app_data(s)	(SSL_SESSION_get_ex_data(s,0))
#define SSL_CTX_get_app_data(ctx)	(SSL_CTX_get_ex_data(ctx,0))
#define SSL_CTX_set_app_data(ctx,arg)	(SSL_CTX_set_ex_data(ctx,0,(char *)arg))

/* The following are the possible values for ssl->state are are
 * used to indicate where we are up to in the SSL connection establishment.
 * The macros that follow are about the only things you should need to use
 * and even then, only when using non-blocking IO.
 * It can also be useful to work out where you were when the connection
 * failed */

#define SSL_ST_CONNECT			0x1000
#define SSL_ST_ACCEPT			0x2000
#define SSL_ST_MASK			0x0FFF
#define SSL_ST_INIT			(SSL_ST_CONNECT|SSL_ST_ACCEPT)
#define SSL_ST_BEFORE			0x4000
#define SSL_ST_OK			0x03
#define SSL_ST_RENEGOTIATE		(0x04|SSL_ST_INIT)

#define SSL_CB_LOOP			0x01
#define SSL_CB_EXIT			0x02
#define SSL_CB_READ			0x04
#define SSL_CB_WRITE			0x08
#define SSL_CB_ALERT			0x4000 /* used in callback */
#define SSL_CB_READ_ALERT		(SSL_CB_ALERT|SSL_CB_READ)
#define SSL_CB_WRITE_ALERT		(SSL_CB_ALERT|SSL_CB_WRITE)
#define SSL_CB_ACCEPT_LOOP		(SSL_ST_ACCEPT|SSL_CB_LOOP)
#define SSL_CB_ACCEPT_EXIT		(SSL_ST_ACCEPT|SSL_CB_EXIT)
#define SSL_CB_CONNECT_LOOP		(SSL_ST_CONNECT|SSL_CB_LOOP)
#define SSL_CB_CONNECT_EXIT		(SSL_ST_CONNECT|SSL_CB_EXIT)
#define SSL_CB_HANDSHAKE_START		0x10
#define SSL_CB_HANDSHAKE_DONE		0x20

/* Is the SSL_connection established? */
#define SSL_get_state(a)		SSL_state(a)
#define SSL_is_init_finished(a)		(SSL_state(a) == SSL_ST_OK)
#define SSL_in_init(a)			(SSL_state(a)&SSL_ST_INIT)
#define SSL_in_before(a)		(SSL_state(a)&SSL_ST_BEFORE)
#define SSL_in_connect_init(a)		(SSL_state(a)&SSL_ST_CONNECT)
#define SSL_in_accept_init(a)		(SSL_state(a)&SSL_ST_ACCEPT)

/* The following 2 states are kept in ssl->rstate when reads fail,
 * you should not need these */
#define SSL_ST_READ_HEADER			0xF0
#define SSL_ST_READ_BODY			0xF1
#define SSL_ST_READ_DONE			0xF2

/* Obtain latest Finished message
 *   -- that we sent (SSL_get_finished)
 *   -- that we expected from peer (SSL_get_peer_finished).
 * Returns length (0 == no Finished so far), copies up to 'count' bytes. */
size_t SSL_get_finished(SSL *s, void *buf, size_t count);
size_t SSL_get_peer_finished(SSL *s, void *buf, size_t count);

/* use either SSL_VERIFY_NONE or SSL_VERIFY_PEER, the last 2 options
 * are 'ored' with SSL_VERIFY_PEER if they are desired */
#define SSL_VERIFY_NONE			0x00
#define SSL_VERIFY_PEER			0x01
#define SSL_VERIFY_FAIL_IF_NO_PEER_CERT	0x02
#define SSL_VERIFY_CLIENT_ONCE		0x04

#define OpenSSL_add_ssl_algorithms()	SSL_library_init()
#define SSLeay_add_ssl_algorithms()	SSL_library_init()

/* this is for backward compatibility */
#if 0 /* NEW_SSLEAY */
#define SSL_CTX_set_default_verify(a,b,c) SSL_CTX_set_verify(a,b,c)
#define SSL_set_pref_cipher(c,n)	SSL_set_cipher_list(c,n)
#define SSL_add_session(a,b)            SSL_CTX_add_session((a),(b))
#define SSL_remove_session(a,b)		SSL_CTX_remove_session((a),(b))
#define SSL_flush_sessions(a,b)		SSL_CTX_flush_sessions((a),(b))
#endif
/* More backward compatibility */
#define SSL_get_cipher(s) \
		SSL_CIPHER_get_name(SSL_get_current_cipher(s))
#define SSL_get_cipher_bits(s,np) \
		SSL_CIPHER_get_bits(SSL_get_current_cipher(s),np)
#define SSL_get_cipher_version(s) \
		SSL_CIPHER_get_version(SSL_get_current_cipher(s))
#define SSL_get_cipher_name(s) \
		SSL_CIPHER_get_name(SSL_get_current_cipher(s))
#define SSL_get_time(a)		SSL_SESSION_get_time(a)
#define SSL_set_time(a,b)	SSL_SESSION_set_time((a),(b))
#define SSL_get_timeout(a)	SSL_SESSION_get_timeout(a)
#define SSL_set_timeout(a,b)	SSL_SESSION_set_timeout((a),(b))

#if 1 /*SSLEAY_MACROS*/
#define d2i_SSL_SESSION_bio(bp,s_id) (SSL_SESSION *)ASN1_d2i_bio( \
	(char *(*)())SSL_SESSION_new,(char *(*)())d2i_SSL_SESSION, \
	(bp),(unsigned char **)(s_id))
#define i2d_SSL_SESSION_bio(bp,s_id) ASN1_i2d_bio(i2d_SSL_SESSION, \
	bp,(unsigned char *)s_id)
#define PEM_read_SSL_SESSION(fp,x,cb,u) (SSL_SESSION *)PEM_ASN1_read( \
	(char *(*)())d2i_SSL_SESSION,PEM_STRING_SSL_SESSION,fp,(char **)x,cb,u)
#define PEM_read_bio_SSL_SESSION(bp,x,cb,u) (SSL_SESSION *)PEM_ASN1_read_bio( \
	(char *(*)())d2i_SSL_SESSION,PEM_STRING_SSL_SESSION,bp,(char **)x,cb,u)
#define PEM_write_SSL_SESSION(fp,x) \
	PEM_ASN1_write((int (*)())i2d_SSL_SESSION, \
		PEM_STRING_SSL_SESSION,fp, (char *)x, NULL,NULL,0,NULL,NULL)
#define PEM_write_bio_SSL_SESSION(bp,x) \
	PEM_ASN1_write_bio((int (*)())i2d_SSL_SESSION, \
		PEM_STRING_SSL_SESSION,bp, (char *)x, NULL,NULL,0,NULL,NULL)
#endif

#define SSL_AD_REASON_OFFSET		1000
/* These alert types are for SSLv3 and TLSv1 */
#define SSL_AD_CLOSE_NOTIFY		SSL3_AD_CLOSE_NOTIFY
#define SSL_AD_UNEXPECTED_MESSAGE	SSL3_AD_UNEXPECTED_MESSAGE /* fatal */
#define SSL_AD_BAD_RECORD_MAC		SSL3_AD_BAD_RECORD_MAC     /* fatal */
#define SSL_AD_DECRYPTION_FAILED	TLS1_AD_DECRYPTION_FAILED
#define SSL_AD_RECORD_OVERFLOW		TLS1_AD_RECORD_OVERFLOW
#define SSL_AD_DECOMPRESSION_FAILURE	SSL3_AD_DECOMPRESSION_FAILURE/* fatal */
#define SSL_AD_HANDSHAKE_FAILURE	SSL3_AD_HANDSHAKE_FAILURE/* fatal */
#define SSL_AD_NO_CERTIFICATE		SSL3_AD_NO_CERTIFICATE /* Not for TLS */
#define SSL_AD_BAD_CERTIFICATE		SSL3_AD_BAD_CERTIFICATE
#define SSL_AD_UNSUPPORTED_CERTIFICATE	SSL3_AD_UNSUPPORTED_CERTIFICATE
#define SSL_AD_CERTIFICATE_REVOKED	SSL3_AD_CERTIFICATE_REVOKED
#define SSL_AD_CERTIFICATE_EXPIRED	SSL3_AD_CERTIFICATE_EXPIRED
#define SSL_AD_CERTIFICATE_UNKNOWN	SSL3_AD_CERTIFICATE_UNKNOWN
#define SSL_AD_ILLEGAL_PARAMETER	SSL3_AD_ILLEGAL_PARAMETER   /* fatal */
#define SSL_AD_UNKNOWN_CA		TLS1_AD_UNKNOWN_CA	/* fatal */
#define SSL_AD_ACCESS_DENIED		TLS1_AD_ACCESS_DENIED	/* fatal */
#define SSL_AD_DECODE_ERROR		TLS1_AD_DECODE_ERROR	/* fatal */
#define SSL_AD_DECRYPT_ERROR		TLS1_AD_DECRYPT_ERROR
#define SSL_AD_EXPORT_RESTRICTION	TLS1_AD_EXPORT_RESTRICTION/* fatal */
#define SSL_AD_PROTOCOL_VERSION		TLS1_AD_PROTOCOL_VERSION /* fatal */
#define SSL_AD_INSUFFICIENT_SECURITY	TLS1_AD_INSUFFICIENT_SECURITY/* fatal */
#define SSL_AD_INTERNAL_ERROR		TLS1_AD_INTERNAL_ERROR	/* fatal */
#define SSL_AD_USER_CANCELLED		TLS1_AD_USER_CANCELLED
#define SSL_AD_NO_RENEGOTIATION		TLS1_AD_NO_RENEGOTIATION

#define SSL_ERROR_NONE			0
#define SSL_ERROR_SSL			1
#define SSL_ERROR_WANT_READ		2
#define SSL_ERROR_WANT_WRITE		3
#define SSL_ERROR_WANT_X509_LOOKUP	4
#define SSL_ERROR_SYSCALL		5 /* look at error stack/return value/errno */
#define SSL_ERROR_ZERO_RETURN		6
#define SSL_ERROR_WANT_CONNECT		7
#define SSL_ERROR_WANT_ACCEPT		8

#define SSL_CTRL_NEED_TMP_RSA			1
#define SSL_CTRL_SET_TMP_RSA			2
#define SSL_CTRL_SET_TMP_DH			3
#define SSL_CTRL_SET_TMP_RSA_CB			4
#define SSL_CTRL_SET_TMP_DH_CB			5
/* Add these ones */
#define SSL_CTRL_GET_SESSION_REUSED		6
#define SSL_CTRL_GET_CLIENT_CERT_REQUEST	7
#define SSL_CTRL_GET_NUM_RENEGOTIATIONS		8
#define SSL_CTRL_CLEAR_NUM_RENEGOTIATIONS	9
#define SSL_CTRL_GET_TOTAL_RENEGOTIATIONS	10
#define SSL_CTRL_GET_FLAGS			11
#define SSL_CTRL_EXTRA_CHAIN_CERT		12

/* Stats */
#define SSL_CTRL_SESS_NUMBER			20
#define SSL_CTRL_SESS_CONNECT			21
#define SSL_CTRL_SESS_CONNECT_GOOD		22
#define SSL_CTRL_SESS_CONNECT_RENEGOTIATE	23
#define SSL_CTRL_SESS_ACCEPT			24
#define SSL_CTRL_SESS_ACCEPT_GOOD		25
#define SSL_CTRL_SESS_ACCEPT_RENEGOTIATE	26
#define SSL_CTRL_SESS_HIT			27
#define SSL_CTRL_SESS_CB_HIT			28
#define SSL_CTRL_SESS_MISSES			29
#define SSL_CTRL_SESS_TIMEOUTS			30
#define SSL_CTRL_SESS_CACHE_FULL		31
#define SSL_CTRL_OPTIONS			32
#define SSL_CTRL_MODE			33

#define SSL_CTRL_GET_READ_AHEAD			40
#define SSL_CTRL_SET_READ_AHEAD			41
#define SSL_CTRL_SET_SESS_CACHE_SIZE		42
#define SSL_CTRL_GET_SESS_CACHE_SIZE		43
#define SSL_CTRL_SET_SESS_CACHE_MODE		44
#define SSL_CTRL_GET_SESS_CACHE_MODE		45

#define SSL_session_reused(ssl) \
	SSL_ctrl((ssl),SSL_CTRL_GET_SESSION_REUSED,0,NULL)
#define SSL_num_renegotiations(ssl) \
	SSL_ctrl((ssl),SSL_CTRL_GET_NUM_RENEGOTIATIONS,0,NULL)
#define SSL_clear_num_renegotiations(ssl) \
	SSL_ctrl((ssl),SSL_CTRL_CLEAR_NUM_RENEGOTIATIONS,0,NULL)
#define SSL_total_renegotiations(ssl) \
	SSL_ctrl((ssl),SSL_CTRL_GET_TOTAL_RENEGOTIATIONS,0,NULL)

#define SSL_CTX_need_tmp_RSA(ctx) \
	SSL_CTX_ctrl(ctx,SSL_CTRL_NEED_TMP_RSA,0,NULL)
#define SSL_CTX_set_tmp_rsa(ctx,rsa) \
	SSL_CTX_ctrl(ctx,SSL_CTRL_SET_TMP_RSA,0,(char *)rsa)
#define SSL_CTX_set_tmp_dh(ctx,dh) \
	SSL_CTX_ctrl(ctx,SSL_CTRL_SET_TMP_DH,0,(char *)dh)

#define SSL_need_tmp_RSA(ssl) \
	SSL_ctrl(ssl,SSL_CTRL_NEED_TMP_RSA,0,NULL)
#define SSL_set_tmp_rsa(ssl,rsa) \
	SSL_ctrl(ssl,SSL_CTRL_SET_TMP_RSA,0,(char *)rsa)
#define SSL_set_tmp_dh(ssl,dh) \
	SSL_ctrl(ssl,SSL_CTRL_SET_TMP_DH,0,(char *)dh)

#define SSL_CTX_add_extra_chain_cert(ctx,x509) \
	SSL_CTX_ctrl(ctx,SSL_CTRL_EXTRA_CHAIN_CERT,0,(char *)x509)

/* VMS uses only 31 characters for symbols. */
#ifdef VMS
#undef SSL_CTX_set_cert_verify_callback
#define SSL_CTX_set_cert_verify_callback SSL_CTX_set_cert_verify_cb
#undef SSL_CTX_use_certificate_chain_file
#define SSL_CTX_use_certificate_chain_file SSL_CTX_use_cert_chain_file
#undef SSL_CTX_set_default_verify_paths
#define SSL_CTX_set_default_verify_paths SSL_CTX_set_def_verify_paths
#undef SSL_get_ex_data_X509_STORE_CTX_idx
#define SSL_get_ex_data_X509_STORE_CTX_idx SSL_get_ex_data_X509_STOR_CTX_i
#undef SSL_add_file_cert_subjects_to_stack
#define SSL_add_file_cert_subjects_to_stack SSL_add_file_cert_sub_to_stack
#undef SSL_add_dir_cert_subjects_to_stack
#define SSL_add_dir_cert_subjects_to_stack SSL_add_dir_cert_sub_to_stack
#endif

#ifndef NO_BIO
BIO_METHOD *BIO_f_ssl(void);
BIO *BIO_new_ssl(SSL_CTX *ctx,int client);
BIO *BIO_new_ssl_connect(SSL_CTX *ctx);
BIO *BIO_new_buffer_ssl_connect(SSL_CTX *ctx);
int BIO_ssl_copy_session_id(BIO *to,BIO *from);
void BIO_ssl_shutdown(BIO *ssl_bio);

#endif

int	SSL_CTX_set_cipher_list(SSL_CTX *,const char *str);
SSL_CTX *SSL_CTX_new(SSL_METHOD *meth);
void	SSL_CTX_free(SSL_CTX *);
long SSL_CTX_set_timeout(SSL_CTX *ctx,long t);
long SSL_CTX_get_timeout(SSL_CTX *ctx);
X509_STORE *SSL_CTX_get_cert_store(SSL_CTX *);
void SSL_CTX_set_cert_store(SSL_CTX *,X509_STORE *);
int SSL_want(SSL *s);
int	SSL_clear(SSL *s);

void	SSL_CTX_flush_sessions(SSL_CTX *ctx,long tm);

SSL_CIPHER *SSL_get_current_cipher(SSL *s);
int	SSL_CIPHER_get_bits(SSL_CIPHER *c,int *alg_bits);
char *	SSL_CIPHER_get_version(SSL_CIPHER *c);
const char *	SSL_CIPHER_get_name(SSL_CIPHER *c);

int	SSL_get_fd(SSL *s);
const char  * SSL_get_cipher_list(SSL *s,int n);
char *	SSL_get_shared_ciphers(SSL *s, char *buf, int len);
int	SSL_get_read_ahead(SSL * s);
int	SSL_pending(SSL *s);
#ifndef NO_SOCK
int	SSL_set_fd(SSL *s, int fd);
int	SSL_set_rfd(SSL *s, int fd);
int	SSL_set_wfd(SSL *s, int fd);
#endif
#ifndef NO_BIO
void	SSL_set_bio(SSL *s, BIO *rbio,BIO *wbio);
BIO *	SSL_get_rbio(SSL *s);
BIO *	SSL_get_wbio(SSL *s);
#endif
int	SSL_set_cipher_list(SSL *s, const char *str);
void	SSL_set_read_ahead(SSL *s, int yes);
int	SSL_get_verify_mode(SSL *s);
int	SSL_get_verify_depth(SSL *s);
int	(*SSL_get_verify_callback(SSL *s))(int,X509_STORE_CTX *);
void	SSL_set_verify(SSL *s, int mode,
		       int (*callback)(int ok,X509_STORE_CTX *ctx));
void	SSL_set_verify_depth(SSL *s, int depth);
#ifndef NO_RSA
int	SSL_use_RSAPrivateKey(SSL *ssl, RSA *rsa);
#endif
int	SSL_use_RSAPrivateKey_ASN1(SSL *ssl, unsigned char *d, long len);
int	SSL_use_PrivateKey(SSL *ssl, EVP_PKEY *pkey);
int	SSL_use_PrivateKey_ASN1(int pk,SSL *ssl, unsigned char *d, long len);
int	SSL_use_certificate(SSL *ssl, X509 *x);
int	SSL_use_certificate_ASN1(SSL *ssl, unsigned char *d, int len);

#ifndef NO_STDIO
int	SSL_use_RSAPrivateKey_file(SSL *ssl, const char *file, int type);
int	SSL_use_PrivateKey_file(SSL *ssl, const char *file, int type);
int	SSL_use_certificate_file(SSL *ssl, const char *file, int type);
int	SSL_CTX_use_RSAPrivateKey_file(SSL_CTX *ctx, const char *file, int type);
int	SSL_CTX_use_PrivateKey_file(SSL_CTX *ctx, const char *file, int type);
int	SSL_CTX_use_certificate_file(SSL_CTX *ctx, const char *file, int type);
int	SSL_CTX_use_certificate_chain_file(SSL_CTX *ctx, const char *file); /* PEM type */
STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file);
int	SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) *stackCAs,
					    const char *file);
int	SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stackCAs,
					   const char *dir);
#endif

void	ERR_load_SSL_strings(void );
void	SSL_load_error_strings(void );
char * 	SSL_state_string(SSL *s);
char * 	SSL_rstate_string(SSL *s);
char * 	SSL_state_string_long(SSL *s);
char * 	SSL_rstate_string_long(SSL *s);
long	SSL_SESSION_get_time(SSL_SESSION *s);
long	SSL_SESSION_set_time(SSL_SESSION *s, long t);
long	SSL_SESSION_get_timeout(SSL_SESSION *s);
long	SSL_SESSION_set_timeout(SSL_SESSION *s, long t);
void	SSL_copy_session_id(SSL *to,SSL *from);