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IABSD.fr/src/lib/libssl/ssl.h

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  • Author : beck
    Date : 2020-01-22 07:49:33
    Hash : fa99de6a
    Message : Move guards from public to internal headers, and fix not use values. reverts previous attempt which would have broken ports ok jsing@

  • lib/libssl/ssl.h
  • /* $OpenBSD: ssl.h,v 1.170 2020/01/22 07:49:33 beck Exp $ */
    /* 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) 1998-2007 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).
     *
     */
    /* ====================================================================
     * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
     * ECC cipher suite support in OpenSSL originally developed by
     * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
     */
    /* ====================================================================
     * Copyright 2005 Nokia. All rights reserved.
     *
     * The portions of the attached software ("Contribution") is developed by
     * Nokia Corporation and is licensed pursuant to the OpenSSL open source
     * license.
     *
     * The Contribution, originally written by Mika Kousa and Pasi Eronen of
     * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
     * support (see RFC 4279) to OpenSSL.
     *
     * No patent licenses or other rights except those expressly stated in
     * the OpenSSL open source license shall be deemed granted or received
     * expressly, by implication, estoppel, or otherwise.
     *
     * No assurances are provided by Nokia that the Contribution does not
     * infringe the patent or other intellectual property rights of any third
     * party or that the license provides you with all the necessary rights
     * to make use of the Contribution.
     *
     * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
     * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
     * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
     * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
     * OTHERWISE.
     */
    
    #ifndef HEADER_SSL_H
    #define HEADER_SSL_H
    
    #include <stdint.h>
    
    #include <openssl/opensslconf.h>
    
    #include <openssl/hmac.h>
    #include <openssl/pem.h>
    #include <openssl/safestack.h>
    
    #include <openssl/bio.h>
    
    #ifndef OPENSSL_NO_DEPRECATED
    #include <openssl/buffer.h>
    #include <openssl/crypto.h>
    #include <openssl/lhash.h>
    
    #ifndef OPENSSL_NO_X509
    #include <openssl/x509.h>
    #endif
    #endif
    
    #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
    
    /*    VRS Additional Kerberos5 entries
     */
    #define SSL_TXT_KRB5_DES_64_CBC_SHA   SSL3_TXT_KRB5_DES_64_CBC_SHA
    #define SSL_TXT_KRB5_DES_192_CBC3_SHA SSL3_TXT_KRB5_DES_192_CBC3_SHA
    #define SSL_TXT_KRB5_RC4_128_SHA      SSL3_TXT_KRB5_RC4_128_SHA
    #define SSL_TXT_KRB5_IDEA_128_CBC_SHA SSL3_TXT_KRB5_IDEA_128_CBC_SHA
    #define SSL_TXT_KRB5_DES_64_CBC_MD5   SSL3_TXT_KRB5_DES_64_CBC_MD5
    #define SSL_TXT_KRB5_DES_192_CBC3_MD5 SSL3_TXT_KRB5_DES_192_CBC3_MD5
    #define SSL_TXT_KRB5_RC4_128_MD5      SSL3_TXT_KRB5_RC4_128_MD5
    #define SSL_TXT_KRB5_IDEA_128_CBC_MD5 SSL3_TXT_KRB5_IDEA_128_CBC_MD5
    
    #define SSL_TXT_KRB5_DES_40_CBC_SHA   SSL3_TXT_KRB5_DES_40_CBC_SHA
    #define SSL_TXT_KRB5_RC2_40_CBC_SHA   SSL3_TXT_KRB5_RC2_40_CBC_SHA
    #define SSL_TXT_KRB5_RC4_40_SHA	      SSL3_TXT_KRB5_RC4_40_SHA
    #define SSL_TXT_KRB5_DES_40_CBC_MD5   SSL3_TXT_KRB5_DES_40_CBC_MD5
    #define SSL_TXT_KRB5_RC2_40_CBC_MD5   SSL3_TXT_KRB5_RC2_40_CBC_MD5
    #define SSL_TXT_KRB5_RC4_40_MD5	      SSL3_TXT_KRB5_RC4_40_MD5
    
    #define SSL_TXT_KRB5_DES_40_CBC_SHA   SSL3_TXT_KRB5_DES_40_CBC_SHA
    #define SSL_TXT_KRB5_DES_40_CBC_MD5   SSL3_TXT_KRB5_DES_40_CBC_MD5
    #define SSL_TXT_KRB5_DES_64_CBC_SHA   SSL3_TXT_KRB5_DES_64_CBC_SHA
    #define SSL_TXT_KRB5_DES_64_CBC_MD5   SSL3_TXT_KRB5_DES_64_CBC_MD5
    #define SSL_TXT_KRB5_DES_192_CBC3_SHA SSL3_TXT_KRB5_DES_192_CBC3_SHA
    #define SSL_TXT_KRB5_DES_192_CBC3_MD5 SSL3_TXT_KRB5_DES_192_CBC3_MD5
    #define SSL_MAX_KRB5_PRINCIPAL_LENGTH  256
    
    #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" /* unused! */
    #define	SSL_TXT_aFZA		"aFZA" /* unused! */
    #define SSL_TXT_eFZA		"eFZA" /* unused! */
    #define SSL_TXT_FZA		"FZA"  /* unused! */
    
    #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" /* no such ciphersuites supported! */
    #define SSL_TXT_kDHd		"kDHd" /* no such ciphersuites supported! */
    #define SSL_TXT_kDH 		"kDH"  /* no such ciphersuites supported! */
    #define SSL_TXT_kEDH		"kEDH"
    #define SSL_TXT_kKRB5     	"kKRB5"
    #define SSL_TXT_kECDHr		"kECDHr"
    #define SSL_TXT_kECDHe		"kECDHe"
    #define SSL_TXT_kECDH		"kECDH"
    #define SSL_TXT_kEECDH		"kEECDH"
    #define SSL_TXT_kPSK            "kPSK"
    #define SSL_TXT_kGOST		"kGOST"
    #define SSL_TXT_kSRP		"kSRP"
    
    #define	SSL_TXT_aRSA		"aRSA"
    #define	SSL_TXT_aDSS		"aDSS"
    #define	SSL_TXT_aDH		"aDH" /* no such ciphersuites supported! */
    #define	SSL_TXT_aECDH		"aECDH"
    #define SSL_TXT_aKRB5     	"aKRB5"
    #define SSL_TXT_aECDSA		"aECDSA"
    #define SSL_TXT_aPSK            "aPSK"
    #define SSL_TXT_aGOST94		"aGOST94"
    #define SSL_TXT_aGOST01		"aGOST01"
    #define SSL_TXT_aGOST		"aGOST"
    
    #define	SSL_TXT_DSS		"DSS"
    #define SSL_TXT_DH		"DH"
    #define SSL_TXT_DHE		"DHE" /* same as "kDHE:-ADH" */
    #define SSL_TXT_EDH		"EDH" /* previous name for DHE */
    #define SSL_TXT_ADH		"ADH"
    #define SSL_TXT_RSA		"RSA"
    #define SSL_TXT_ECDH		"ECDH"
    #define SSL_TXT_ECDHE		"ECDHE" /* same as "kECDHE:-AECDH" */
    #define SSL_TXT_EECDH		"EECDH" /* previous name for ECDHE */
    #define SSL_TXT_AECDH		"AECDH"
    #define SSL_TXT_ECDSA		"ECDSA"
    #define SSL_TXT_KRB5      	"KRB5"
    #define SSL_TXT_PSK             "PSK"
    #define SSL_TXT_SRP		"SRP"
    
    #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_SEED		"SEED"
    #define SSL_TXT_AES128		"AES128"
    #define SSL_TXT_AES256		"AES256"
    #define SSL_TXT_AES		"AES"
    #define SSL_TXT_AES_GCM		"AESGCM"
    #define SSL_TXT_CAMELLIA128	"CAMELLIA128"
    #define SSL_TXT_CAMELLIA256	"CAMELLIA256"
    #define SSL_TXT_CAMELLIA	"CAMELLIA"
    #define SSL_TXT_CHACHA20	"CHACHA20"
    
    #define SSL_TXT_AEAD		"AEAD"
    #define SSL_TXT_MD5		"MD5"
    #define SSL_TXT_SHA1		"SHA1"
    #define SSL_TXT_SHA		"SHA" /* same as "SHA1" */
    #define SSL_TXT_GOST94		"GOST94"
    #define SSL_TXT_GOST89MAC		"GOST89MAC"
    #define SSL_TXT_SHA256		"SHA256"
    #define SSL_TXT_SHA384		"SHA384"
    #define SSL_TXT_STREEBOG256		"STREEBOG256"
    #define SSL_TXT_STREEBOG512		"STREEBOG512"
    
    #define SSL_TXT_DTLS1		"DTLSv1"
    #define SSL_TXT_SSLV2		"SSLv2"
    #define SSL_TXT_SSLV3		"SSLv3"
    #define SSL_TXT_TLSV1		"TLSv1"
    #define SSL_TXT_TLSV1_1		"TLSv1.1"
    #define SSL_TXT_TLSV1_2		"TLSv1.2"
    #if defined(LIBRESSL_HAS_TLS1_3) || defined(LIBRESSL_INTERNAL)
    #define SSL_TXT_TLSV1_3		"TLSv1.3"
    #endif
    
    #define SSL_TXT_EXP		"EXP"
    #define SSL_TXT_EXPORT		"EXPORT"
    
    #define SSL_TXT_ALL		"ALL"
    
    /*
     * COMPLEMENTOF* definitions. These identifiers are used to (de-select)
     * ciphers normally not being used.
     * Example: "RC4" will activate all ciphers using RC4 including ciphers
     * without authentication, which would normally disabled by DEFAULT (due
     * the "!ADH" being part of default). Therefore "RC4:!COMPLEMENTOFDEFAULT"
     * will make sure that it is also disabled in the specific selection.
     * COMPLEMENTOF* identifiers are portable between version, as adjustments
     * to the default cipher setup will also be included here.
     *
     * COMPLEMENTOFDEFAULT does not experience the same special treatment that
     * DEFAULT gets, as only selection is being done and no sorting as needed
     * for DEFAULT.
     */
    #define SSL_TXT_CMPALL		"COMPLEMENTOFALL"
    #define SSL_TXT_CMPDEF		"COMPLEMENTOFDEFAULT"
    
    /* The following cipher list is used by default.
     * It also is substituted when an application-defined cipher list string
     * starts with 'DEFAULT'. */
    #define SSL_DEFAULT_CIPHER_LIST	"ALL:!aNULL:!eNULL:!SSLv2"
    /* As of OpenSSL 1.0.0, ssl_create_cipher_list() in ssl/ssl_ciph.c always
     * starts with a reasonable order, and all we have to do for DEFAULT is
     * throwing out anonymous and unencrypted ciphersuites!
     * (The latter are not actually enabled by ALL, but "ALL:RSA" would enable
     * some of them.)
     */
    
    /* Used in SSL_set_shutdown()/SSL_get_shutdown(); */
    #define SSL_SENT_SHUTDOWN	1
    #define SSL_RECEIVED_SHUTDOWN	2
    
    
    #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;
    
    typedef struct tls_session_ticket_ext_st TLS_SESSION_TICKET_EXT;
    typedef struct ssl_method_st SSL_METHOD;
    typedef struct ssl_cipher_st SSL_CIPHER;
    typedef struct ssl_session_st SSL_SESSION;
    
    DECLARE_STACK_OF(SSL_CIPHER)
    
    /* SRTP protection profiles for use with the use_srtp extension (RFC 5764)*/
    typedef struct srtp_protection_profile_st {
    	const char *name;
    	unsigned long id;
    } SRTP_PROTECTION_PROFILE;
    
    DECLARE_STACK_OF(SRTP_PROTECTION_PROFILE)
    
    typedef int (*tls_session_ticket_ext_cb_fn)(SSL *s, const unsigned char *data,
        int len, void *arg);
    typedef int (*tls_session_secret_cb_fn)(SSL *s, void *secret, int *secret_len,
        STACK_OF(SSL_CIPHER) *peer_ciphers, SSL_CIPHER **cipher, void *arg);
    
    #ifndef OPENSSL_NO_SSL_INTERN
    
    /* used to hold info on the particular ciphers used */
    struct ssl_cipher_st {
    	int valid;
    	const char *name;		/* text name */
    	unsigned long id;		/* id, 4 bytes, first is version */
    
    	unsigned long algorithm_mkey;	/* key exchange algorithm */
    	unsigned long algorithm_auth;	/* server authentication */
    	unsigned long algorithm_enc;	/* symmetric encryption */
    	unsigned long algorithm_mac;	/* symmetric authentication */
    	unsigned long algorithm_ssl;	/* (major) protocol version */
    
    	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 */
    };
    
    
    /* Used to hold functions for SSLv3/TLSv1 functions */
    struct ssl_method_internal_st;
    
    struct ssl_method_st {
    	int (*ssl_dispatch_alert)(SSL *s);
    	int (*num_ciphers)(void);
    	const SSL_CIPHER *(*get_cipher)(unsigned ncipher);
    	const SSL_CIPHER *(*get_cipher_by_char)(const unsigned char *ptr);
    	int (*put_cipher_by_char)(const SSL_CIPHER *cipher, unsigned char *ptr);
    
    	const struct ssl_method_internal_st *internal;
    };
    
    /* 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
     *	KRB5_principal		OCTET STRING	-- optional Kerberos principal
     *	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'
     *	HostName [ 6 ] EXPLICIT OCTET STRING,   -- optional HostName from servername TLS extension
     *	PSK_identity_hint [ 7 ] EXPLICIT OCTET STRING, -- optional PSK identity hint
     *	PSK_identity [ 8 ] EXPLICIT OCTET STRING,  -- optional PSK identity
     *	Ticket_lifetime_hint [9] EXPLICIT INTEGER, -- server's lifetime hint for session ticket
     *	Ticket [10]             EXPLICIT OCTET STRING, -- session ticket (clients only)
     *	Compression_meth [11]   EXPLICIT OCTET STRING, -- optional compression method
     *	SRP_username [ 12 ] EXPLICIT OCTET STRING -- optional SRP username
     *	}
     * Look in ssl/ssl_asn1.c for more details
     * I'm using EXPLICIT tags so I can read the damn things using asn1parse :-).
     */
    struct ssl_session_internal_st;
    
    struct ssl_session_st {
    	int ssl_version;	/* what ssl version session info is
    				 * being kept in here? */
    
    	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];
    
    	/* This is the cert for the other end. */
    	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 */
    
    	long timeout;
    	time_t time;
    	int references;
    
    	const 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? */
    
    	char *tlsext_hostname;
    
    	/* RFC4507 info */
    	unsigned char *tlsext_tick;	/* Session ticket */
    	size_t tlsext_ticklen;		/* Session ticket length */
    	long tlsext_tick_lifetime_hint;	/* Session lifetime hint in seconds */
    
    	struct ssl_session_internal_st *internal;
    };
    
    #endif
    
    /* Allow initial connection to servers that don't support RI */
    #define SSL_OP_LEGACY_SERVER_CONNECT			0x00000004L
    
    /* Disable SSL 3.0/TLS 1.0 CBC vulnerability workaround that was added
     * in OpenSSL 0.9.6d.  Usually (depending on the application protocol)
     * the workaround is not needed.
     * Unfortunately some broken SSL/TLS implementations cannot handle it
     * at all, which is why it was previously included in SSL_OP_ALL.
     * Now it's not.
     */
    #define SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS		0x00000800L
    
    /* DTLS options */
    #define SSL_OP_NO_QUERY_MTU				0x00001000L
    /* Turn on Cookie Exchange (on relevant for servers) */
    #define SSL_OP_COOKIE_EXCHANGE				0x00002000L
    /* Don't use RFC4507 ticket extension */
    #define SSL_OP_NO_TICKET				0x00004000L
    
    /* As server, disallow session resumption on renegotiation */
    #define SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION	0x00010000L
    /* Disallow client initiated renegotiation. */
    #define SSL_OP_NO_CLIENT_RENEGOTIATION			0x00020000L
    /* If set, always create a new key when using tmp_dh parameters */
    #define SSL_OP_SINGLE_DH_USE				0x00100000L
    /* Set on servers to choose the cipher according to the server's
     * preferences */
    #define SSL_OP_CIPHER_SERVER_PREFERENCE			0x00400000L
    
    #define SSL_OP_NO_TLSv1					0x04000000L
    #define SSL_OP_NO_TLSv1_2				0x08000000L
    #define SSL_OP_NO_TLSv1_1				0x10000000L
    
    #if defined(LIBRESSL_HAS_TLS1_3) || defined(LIBRESSL_INTERNAL)
    #define SSL_OP_NO_TLSv1_3				0x20000000L
    #endif
    
    /* SSL_OP_ALL: various bug workarounds that should be rather harmless. */
    #define SSL_OP_ALL \
        (SSL_OP_LEGACY_SERVER_CONNECT)
    
    /* Obsolete flags kept for compatibility. No sane code should use them. */
    #define SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION	0x0
    #define SSL_OP_CISCO_ANYCONNECT				0x0
    #define SSL_OP_CRYPTOPRO_TLSEXT_BUG			0x0
    #define SSL_OP_EPHEMERAL_RSA				0x0
    #define SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER		0x0
    #define SSL_OP_MICROSOFT_SESS_ID_BUG			0x0
    #define SSL_OP_MSIE_SSLV2_RSA_PADDING			0x0
    #define SSL_OP_NETSCAPE_CA_DN_BUG			0x0
    #define SSL_OP_NETSCAPE_CHALLENGE_BUG			0x0
    #define SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG		0x0
    #define SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG		0x0
    #define SSL_OP_NO_COMPRESSION				0x0
    #define SSL_OP_NO_SSLv2					0x0
    #define SSL_OP_NO_SSLv3					0x0
    #define SSL_OP_PKCS1_CHECK_1				0x0
    #define SSL_OP_PKCS1_CHECK_2				0x0
    #define SSL_OP_SAFARI_ECDHE_ECDSA_BUG			0x0
    #define SSL_OP_SINGLE_ECDH_USE				0x0
    #define SSL_OP_SSLEAY_080_CLIENT_DH_BUG			0x0
    #define SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG		0x0
    #define SSL_OP_TLSEXT_PADDING				0x0
    #define SSL_OP_TLS_BLOCK_PADDING_BUG			0x0
    #define SSL_OP_TLS_D5_BUG				0x0
    #define SSL_OP_TLS_ROLLBACK_BUG				0x0
    
    /* 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
    /* Don't attempt to automatically build certificate chain */
    #define SSL_MODE_NO_AUTO_CHAIN 0x00000008L
    /* Save RAM by releasing read and write buffers when they're empty. (SSL3 and
     * TLS only.)  "Released" buffers are put onto a free-list in the context
     * or just freed (depending on the context's setting for freelist_max_len). */
    #define SSL_MODE_RELEASE_BUFFERS 0x00000010L
    
    /* 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_clear_options(ctx,op) \
    	SSL_CTX_ctrl((ctx),SSL_CTRL_CLEAR_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_clear_options(ssl,op) \
    	SSL_ctrl((ssl),SSL_CTRL_CLEAR_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_clear_mode(ctx,op) \
    	SSL_CTX_ctrl((ctx),SSL_CTRL_CLEAR_MODE,(op),NULL)
    #define SSL_CTX_get_mode(ctx) \
    	SSL_CTX_ctrl((ctx),SSL_CTRL_MODE,0,NULL)
    #define SSL_clear_mode(ssl,op) \
    	SSL_ctrl((ssl),SSL_CTRL_CLEAR_MODE,(op),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_set_mtu(ssl, mtu) \
            SSL_ctrl((ssl),SSL_CTRL_SET_MTU,(mtu),NULL)
    
    #define SSL_get_secure_renegotiation_support(ssl) \
    	SSL_ctrl((ssl), SSL_CTRL_GET_RI_SUPPORT, 0, NULL)
    
    void SSL_CTX_set_msg_callback(SSL_CTX *ctx, void (*cb)(int write_p,
        int version, int content_type, const void *buf, size_t len, SSL *ssl,
        void *arg));
    void SSL_set_msg_callback(SSL *ssl, void (*cb)(int write_p, int version,
        int content_type, const void *buf, size_t len, SSL *ssl, void *arg));
    #define SSL_CTX_set_msg_callback_arg(ctx, arg) SSL_CTX_ctrl((ctx), SSL_CTRL_SET_MSG_CALLBACK_ARG, 0, (arg))
    #define SSL_set_msg_callback_arg(ssl, arg) SSL_ctrl((ssl), SSL_CTRL_SET_MSG_CALLBACK_ARG, 0, (arg))
    
    struct ssl_aead_ctx_st;
    typedef struct ssl_aead_ctx_st SSL_AEAD_CTX;
    
    #define SSL_MAX_CERT_LIST_DEFAULT 1024*100 /* 100k max cert list :-) */
    
    #define SSL_SESSION_CACHE_MAX_SIZE_DEFAULT	(1024*20)
    
    /* This callback type is used inside SSL_CTX, SSL, and in the functions that set
     * them. It is used to override the generation of SSL/TLS session IDs in a
     * server. Return value should be zero on an error, non-zero to proceed. Also,
     * callbacks should themselves check if the id they generate is unique otherwise
     * the SSL handshake will fail with an error - callbacks can do this using the
     * 'ssl' value they're passed by;
     *      SSL_has_matching_session_id(ssl, id, *id_len)
     * The length value passed in is set at the maximum size the session ID can be.
     * In SSLv2 this is 16 bytes, whereas SSLv3/TLSv1 it is 32 bytes. The callback
     * can alter this length to be less if desired, but under SSLv2 session IDs are
     * supposed to be fixed at 16 bytes so the id will be padded after the callback
     * returns in this case. It is also an error for the callback to set the size to
     * zero. */
    typedef int (*GEN_SESSION_CB)(const SSL *ssl, unsigned char *id,
        unsigned int *id_len);
    
    typedef struct ssl_comp_st SSL_COMP;
    
    #ifndef OPENSSL_NO_SSL_INTERN
    
    struct ssl_comp_st {
    	int id;
    	const char *name;
    };
    
    DECLARE_STACK_OF(SSL_COMP)
    struct lhash_st_SSL_SESSION {
    	int dummy;
    };
    
    struct ssl_ctx_internal_st;
    
    struct ssl_ctx_st {
    	const SSL_METHOD *method;
    
    	STACK_OF(SSL_CIPHER) *cipher_list;
    
    	struct x509_store_st /* X509_STORE */ *cert_store;
    
    	/* 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;
    
    	int references;
    
    	/* Default values to use in SSL structures follow (these are copied by SSL_new) */
    
    	STACK_OF(X509) *extra_certs;
    
    	int verify_mode;
    	unsigned int sid_ctx_length;
    	unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
    
    	X509_VERIFY_PARAM *param;
    
    	/*
    	 * XXX
    	 * default_passwd_cb used by python and openvpn, need to keep it until we
    	 * add an accessor
    	 */
    	/* Default password callback. */
    	pem_password_cb *default_passwd_callback;
    
    	/* Default password callback user data. */
    	void *default_passwd_callback_userdata;
    
    	struct ssl_ctx_internal_st *internal;
    };
    
    #endif
    
    #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
    /* enough comments already ... see SSL_CTX_set_session_cache_mode(3) */
    #define SSL_SESS_CACHE_NO_INTERNAL_LOOKUP	0x0100
    #define SSL_SESS_CACHE_NO_INTERNAL_STORE	0x0200
    #define SSL_SESS_CACHE_NO_INTERNAL \
    	(SSL_SESS_CACHE_NO_INTERNAL_LOOKUP|SSL_SESS_CACHE_NO_INTERNAL_STORE)
    
    struct lhash_st_SSL_SESSION *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)
    
    void SSL_CTX_sess_set_new_cb(SSL_CTX *ctx,
        int (*new_session_cb)(struct ssl_st *ssl, SSL_SESSION *sess));
    int (*SSL_CTX_sess_get_new_cb(SSL_CTX *ctx))(struct ssl_st *ssl,
        SSL_SESSION *sess);
    void SSL_CTX_sess_set_remove_cb(SSL_CTX *ctx,
        void (*remove_session_cb)(struct ssl_ctx_st *ctx, SSL_SESSION *sess));
    void (*SSL_CTX_sess_get_remove_cb(SSL_CTX *ctx))(struct ssl_ctx_st *ctx,
        SSL_SESSION *sess);
    void SSL_CTX_sess_set_get_cb(SSL_CTX *ctx,
        SSL_SESSION *(*get_session_cb)(struct ssl_st *ssl,
        const unsigned char *data, int len, int *copy));
    SSL_SESSION *(*SSL_CTX_sess_get_get_cb(SSL_CTX *ctx))(struct ssl_st *ssl,
        const unsigned char *data, int len, int *copy);
    void SSL_CTX_set_info_callback(SSL_CTX *ctx, void (*cb)(const SSL *ssl,
        int type, int val));
    void (*SSL_CTX_get_info_callback(SSL_CTX *ctx))(const SSL *ssl, int type,
        int val);
    void SSL_CTX_set_client_cert_cb(SSL_CTX *ctx,
        int (*client_cert_cb)(SSL *ssl, X509 **x509, EVP_PKEY **pkey));
    int (*SSL_CTX_get_client_cert_cb(SSL_CTX *ctx))(SSL *ssl, X509 **x509,
        EVP_PKEY **pkey);
    #ifndef OPENSSL_NO_ENGINE
    int SSL_CTX_set_client_cert_engine(SSL_CTX *ctx, ENGINE *e);
    #endif
    void SSL_CTX_set_cookie_generate_cb(SSL_CTX *ctx,
        int (*app_gen_cookie_cb)(SSL *ssl, unsigned char *cookie,
        unsigned int *cookie_len));
    void SSL_CTX_set_cookie_verify_cb(SSL_CTX *ctx,
        int (*app_verify_cookie_cb)(SSL *ssl, const unsigned char *cookie,
        unsigned int cookie_len));
    void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *s, int (*cb)(SSL *ssl,
        const unsigned char **out, unsigned int *outlen, void *arg), void *arg);
    void SSL_CTX_set_next_proto_select_cb(SSL_CTX *s, int (*cb)(SSL *ssl,
        unsigned char **out, unsigned char *outlen, const unsigned char *in,
        unsigned int inlen, void *arg), void *arg);
    
    int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
        const unsigned char *in, unsigned int inlen, const unsigned char *client,
        unsigned int client_len);
    void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
        unsigned *len);
    
    #define OPENSSL_NPN_UNSUPPORTED	0
    #define OPENSSL_NPN_NEGOTIATED	1
    #define OPENSSL_NPN_NO_OVERLAP	2
    
    int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
        unsigned int protos_len);
    int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
        unsigned int protos_len);
    void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
        int (*cb)(SSL *ssl, const unsigned char **out, unsigned char *outlen,
        const unsigned char *in, unsigned int inlen, void *arg), void *arg);
    void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
        unsigned int *len);
    
    #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)
    
    #define SSL_MAC_FLAG_READ_MAC_STREAM 1
    #define SSL_MAC_FLAG_WRITE_MAC_STREAM 2
    
    #ifndef OPENSSL_NO_SSL_INTERN
    struct ssl_internal_st;
    
    struct ssl_st {
    	/* protocol version
    	 * (one of SSL2_VERSION, SSL3_VERSION, TLS1_VERSION, DTLS1_VERSION)
    	 */
    	int version;
    
    	const 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 */
    
    	BIO *rbio; /* used by SSL_read */
    	BIO *wbio; /* used by SSL_write */
    	BIO *bbio; /* used during session-id reuse to concatenate
    		    * messages */
    	int server;	/* are we the server side? - mostly used by SSL_clear*/
    
    	struct ssl3_state_st *s3; /* SSLv3 variables */
    	struct dtls1_state_st *d1; /* DTLSv1 variables */
    
    	X509_VERIFY_PARAM *param;
    
    	/* crypto */
    	STACK_OF(SSL_CIPHER) *cipher_list;
    
    	/* 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 error;		/* error bytes to be written */
    	int error_code;		/* actual code */
    
    	SSL_CTX *ctx;
    
    	long verify_result;
    
    	int references;
    
    	int client_version;	/* what was passed, used for
    				 * SSLv3/TLS rollback check */
    
    	unsigned int max_send_fragment;
    
    	char *tlsext_hostname;
    
    	/* certificate status request info */
    	/* Status type or -1 if no status type */
    	int tlsext_status_type;
    
    	SSL_CTX * initial_ctx; /* initial ctx, used to store sessions */
    #define session_ctx initial_ctx
    
    	/*
    	 * XXX really should be internal, but is
    	 * touched unnaturally by wpa-supplicant
    	 * and freeradius and other perversions
    	 */
    	EVP_CIPHER_CTX *enc_read_ctx;		/* cryptographic state */
    	EVP_MD_CTX *read_hash;			/* used for mac generation */
    
    	struct ssl_internal_st *internal;
    };
    
    #endif
    
    #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/dtls1.h>	/* Datagram TLS */
    #include <openssl/ssl23.h>
    #include <openssl/srtp.h>	/* Support for the use_srtp extension */
    
    #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(const SSL *s, void *buf, size_t count);
    size_t SSL_get_peer_finished(const 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()
    
    /* 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))
    
    #define d2i_SSL_SESSION_bio(bp,s_id) ASN1_d2i_bio_of(SSL_SESSION,SSL_SESSION_new,d2i_SSL_SESSION,bp,s_id)
    #define i2d_SSL_SESSION_bio(bp,s_id) ASN1_i2d_bio_of(SSL_SESSION,i2d_SSL_SESSION,bp,s_id)
    
    SSL_SESSION *PEM_read_bio_SSL_SESSION(BIO *bp, SSL_SESSION **x,
        pem_password_cb *cb, void *u);
    SSL_SESSION *PEM_read_SSL_SESSION(FILE *fp, SSL_SESSION **x,
        pem_password_cb *cb, void *u);
    int PEM_write_bio_SSL_SESSION(BIO *bp, SSL_SESSION *x);
    int PEM_write_SSL_SESSION(FILE *fp, SSL_SESSION *x);
    
    #define SSL_AD_REASON_OFFSET		1000 /* offset to get SSL_R_... value from SSL_AD_... */
    
    /* 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_INAPPROPRIATE_FALLBACK	TLS1_AD_INAPPROPRIATE_FALLBACK /* fatal */
    #define SSL_AD_USER_CANCELLED		TLS1_AD_USER_CANCELLED
    #define SSL_AD_NO_RENEGOTIATION		TLS1_AD_NO_RENEGOTIATION
    #define SSL_AD_UNSUPPORTED_EXTENSION	TLS1_AD_UNSUPPORTED_EXTENSION
    #define SSL_AD_CERTIFICATE_UNOBTAINABLE TLS1_AD_CERTIFICATE_UNOBTAINABLE
    #define SSL_AD_UNRECOGNIZED_NAME	TLS1_AD_UNRECOGNIZED_NAME
    #define SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE TLS1_AD_BAD_CERTIFICATE_STATUS_RESPONSE
    #define SSL_AD_BAD_CERTIFICATE_HASH_VALUE TLS1_AD_BAD_CERTIFICATE_HASH_VALUE
    #define SSL_AD_UNKNOWN_PSK_IDENTITY	TLS1_AD_UNKNOWN_PSK_IDENTITY /* fatal */
    
    #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_ECDH			4
    #define SSL_CTRL_SET_TMP_RSA_CB			5
    #define SSL_CTRL_SET_TMP_DH_CB			6
    #define SSL_CTRL_SET_TMP_ECDH_CB		7
    
    #define SSL_CTRL_GET_SESSION_REUSED		8
    #define SSL_CTRL_GET_CLIENT_CERT_REQUEST	9
    #define SSL_CTRL_GET_NUM_RENEGOTIATIONS		10
    #define SSL_CTRL_CLEAR_NUM_RENEGOTIATIONS	11
    #define SSL_CTRL_GET_TOTAL_RENEGOTIATIONS	12
    #define SSL_CTRL_GET_FLAGS			13
    #define SSL_CTRL_EXTRA_CHAIN_CERT		14
    
    #define SSL_CTRL_SET_MSG_CALLBACK               15
    #define SSL_CTRL_SET_MSG_CALLBACK_ARG           16
    
    /* only applies to datagram connections */
    #define SSL_CTRL_SET_MTU                17
    /* 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_CTRL_GET_MAX_CERT_LIST		50
    #define SSL_CTRL_SET_MAX_CERT_LIST		51
    
    #define SSL_CTRL_SET_MAX_SEND_FRAGMENT		52
    
    /* see tls1.h for macros based on these */
    #define SSL_CTRL_SET_TLSEXT_SERVERNAME_CB	53
    #define SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG	54
    #define SSL_CTRL_SET_TLSEXT_HOSTNAME		55
    #define SSL_CTRL_SET_TLSEXT_DEBUG_CB		56
    #define SSL_CTRL_SET_TLSEXT_DEBUG_ARG		57
    #define SSL_CTRL_GET_TLSEXT_TICKET_KEYS		58
    #define SSL_CTRL_SET_TLSEXT_TICKET_KEYS		59
    #define SSL_CTRL_GET_TLSEXT_STATUS_REQ_CB	128
    #define SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB	63
    #define SSL_CTRL_GET_TLSEXT_STATUS_REQ_CB_ARG	129
    #define SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB_ARG	64
    #define SSL_CTRL_SET_TLSEXT_STATUS_REQ_TYPE	65
    #define SSL_CTRL_GET_TLSEXT_STATUS_REQ_EXTS	66
    #define SSL_CTRL_SET_TLSEXT_STATUS_REQ_EXTS	67
    #define SSL_CTRL_GET_TLSEXT_STATUS_REQ_IDS	68
    #define SSL_CTRL_SET_TLSEXT_STATUS_REQ_IDS	69
    #define SSL_CTRL_GET_TLSEXT_STATUS_REQ_OCSP_RESP	70
    #define SSL_CTRL_SET_TLSEXT_STATUS_REQ_OCSP_RESP	71
    
    #define SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB	72
    
    #define SSL_CTRL_SET_TLS_EXT_SRP_USERNAME_CB	75
    #define SSL_CTRL_SET_SRP_VERIFY_PARAM_CB		76
    #define SSL_CTRL_SET_SRP_GIVE_CLIENT_PWD_CB		77
    
    #define SSL_CTRL_SET_SRP_ARG		78
    #define SSL_CTRL_SET_TLS_EXT_SRP_USERNAME		79
    #define SSL_CTRL_SET_TLS_EXT_SRP_STRENGTH		80
    #define SSL_CTRL_SET_TLS_EXT_SRP_PASSWORD		81
    
    #define DTLS_CTRL_GET_TIMEOUT		73
    #define DTLS_CTRL_HANDLE_TIMEOUT	74
    #define DTLS_CTRL_LISTEN			75
    
    #define SSL_CTRL_GET_RI_SUPPORT			76
    #define SSL_CTRL_CLEAR_OPTIONS			77
    #define SSL_CTRL_CLEAR_MODE			78
    
    #define SSL_CTRL_GET_EXTRA_CHAIN_CERTS		82
    #define SSL_CTRL_CLEAR_EXTRA_CHAIN_CERTS	83
    
    #define	SSL_CTRL_CHAIN					88
    #define	SSL_CTRL_CHAIN_CERT				89
    
    #define SSL_CTRL_SET_GROUPS				91
    #define SSL_CTRL_SET_GROUPS_LIST			92
    
    #define SSL_CTRL_SET_ECDH_AUTO			94
    
    #define SSL_CTRL_GET_SERVER_TMP_KEY		109
    
    #define	SSL_CTRL_GET_CHAIN_CERTS			115
    
    #define SSL_CTRL_SET_DH_AUTO			118
    
    #define SSL_CTRL_SET_MIN_PROTO_VERSION			123
    #define SSL_CTRL_SET_MAX_PROTO_VERSION			124
    #define SSL_CTRL_GET_MIN_PROTO_VERSION			130
    #define SSL_CTRL_GET_MAX_PROTO_VERSION			131
    
    #define DTLSv1_get_timeout(ssl, arg) \
    	SSL_ctrl(ssl,DTLS_CTRL_GET_TIMEOUT,0, (void *)arg)
    #define DTLSv1_handle_timeout(ssl) \
    	SSL_ctrl(ssl,DTLS_CTRL_HANDLE_TIMEOUT,0, NULL)
    #define DTLSv1_listen(ssl, peer) \
    	SSL_ctrl(ssl,DTLS_CTRL_LISTEN,0, (void *)peer)
    
    #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_CTX_set_tmp_ecdh(ctx,ecdh) \
    	SSL_CTX_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH,0,(char *)ecdh)
    #define SSL_CTX_set_dh_auto(ctx, onoff) \
    	SSL_CTX_ctrl(ctx,SSL_CTRL_SET_DH_AUTO,onoff,NULL)
    #define SSL_CTX_set_ecdh_auto(ctx, onoff) \
    	SSL_CTX_ctrl(ctx,SSL_CTRL_SET_ECDH_AUTO,onoff,NULL)
    
    #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_set_tmp_ecdh(ssl,ecdh) \
    	SSL_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH,0,(char *)ecdh)
    #define SSL_set_dh_auto(s, onoff) \
    	SSL_ctrl(s,SSL_CTRL_SET_DH_AUTO,onoff,NULL)
    #define SSL_set_ecdh_auto(s, onoff) \
    	SSL_ctrl(s,SSL_CTRL_SET_ECDH_AUTO,onoff,NULL)
    
    int SSL_CTX_set0_chain(SSL_CTX *ctx, STACK_OF(X509) *chain);
    int SSL_CTX_set1_chain(SSL_CTX *ctx, STACK_OF(X509) *chain);
    int SSL_CTX_add0_chain_cert(SSL_CTX *ctx, X509 *x509);
    int SSL_CTX_add1_chain_cert(SSL_CTX *ctx, X509 *x509);
    int SSL_CTX_get0_chain_certs(const SSL_CTX *ctx, STACK_OF(X509) **out_chain);
    int SSL_CTX_clear_chain_certs(SSL_CTX *ctx);
    
    int SSL_set0_chain(SSL *ssl, STACK_OF(X509) *chain);
    int SSL_set1_chain(SSL *ssl, STACK_OF(X509) *chain);
    int SSL_add0_chain_cert(SSL *ssl, X509 *x509);
    int SSL_add1_chain_cert(SSL *ssl, X509 *x509);
    int SSL_get0_chain_certs(const SSL *ssl, STACK_OF(X509) **out_chain);
    int SSL_clear_chain_certs(SSL *ssl);
    
    int SSL_CTX_set1_groups(SSL_CTX *ctx, const int *groups, size_t groups_len);
    int SSL_CTX_set1_groups_list(SSL_CTX *ctx, const char *groups);
    
    int SSL_set1_groups(SSL *ssl, const int *groups, size_t groups_len);
    int SSL_set1_groups_list(SSL *ssl, const char *groups);
    
    int SSL_CTX_get_min_proto_version(SSL_CTX *ctx);
    int SSL_CTX_get_max_proto_version(SSL_CTX *ctx);
    int SSL_CTX_set_min_proto_version(SSL_CTX *ctx, uint16_t version);
    int SSL_CTX_set_max_proto_version(SSL_CTX *ctx, uint16_t version);
    
    int SSL_get_min_proto_version(SSL *ssl);
    int SSL_get_max_proto_version(SSL *ssl);
    int SSL_set_min_proto_version(SSL *ssl, uint16_t version);
    int SSL_set_max_proto_version(SSL *ssl, uint16_t version);
    
    #ifndef LIBRESSL_INTERNAL
    #define SSL_CTRL_SET_CURVES			SSL_CTRL_SET_GROUPS
    #define SSL_CTRL_SET_CURVES_LIST		SSL_CTRL_SET_GROUPS_LIST
    
    #define SSL_CTX_set1_curves SSL_CTX_set1_groups
    #define SSL_CTX_set1_curves_list SSL_CTX_set1_groups_list
    #define SSL_set1_curves SSL_set1_groups
    #define SSL_set1_curves_list SSL_set1_groups_list
    #endif
    
    #define SSL_CTX_add_extra_chain_cert(ctx, x509) \
    	SSL_CTX_ctrl(ctx, SSL_CTRL_EXTRA_CHAIN_CERT, 0, (char *)x509)
    #define SSL_CTX_get_extra_chain_certs(ctx, px509) \
    	SSL_CTX_ctrl(ctx, SSL_CTRL_GET_EXTRA_CHAIN_CERTS, 0, px509)
    #define SSL_CTX_get_extra_chain_certs_only(ctx, px509) \
    	SSL_CTX_ctrl(ctx, SSL_CTRL_GET_EXTRA_CHAIN_CERTS, 1, px509)
    #define SSL_CTX_clear_extra_chain_certs(ctx) \
    	SSL_CTX_ctrl(ctx, SSL_CTRL_CLEAR_EXTRA_CHAIN_CERTS, 0, NULL)
    
    #define SSL_get_server_tmp_key(s, pk) \
    	SSL_ctrl(s,SSL_CTRL_GET_SERVER_TMP_KEY,0,pk)
    
    #ifndef LIBRESSL_INTERNAL
    /*
     * Also provide those functions as macros for compatibility with
     * existing users.
     */
    #define SSL_CTX_set0_chain		SSL_CTX_set0_chain
    #define SSL_CTX_set1_chain		SSL_CTX_set1_chain
    #define SSL_CTX_add0_chain_cert		SSL_CTX_add0_chain_cert
    #define SSL_CTX_add1_chain_cert		SSL_CTX_add1_chain_cert
    #define SSL_CTX_get0_chain_certs	SSL_CTX_get0_chain_certs
    #define SSL_CTX_clear_chain_certs	SSL_CTX_clear_chain_certs
    
    #define SSL_add0_chain_cert		SSL_add0_chain_cert
    #define SSL_add1_chain_cert		SSL_add1_chain_cert
    #define SSL_set0_chain			SSL_set0_chain
    #define SSL_set1_chain			SSL_set1_chain
    #define SSL_get0_chain_certs		SSL_get0_chain_certs
    #define SSL_clear_chain_certs		SSL_clear_chain_certs
    
    #define SSL_CTX_set1_groups		SSL_CTX_set1_groups
    #define SSL_CTX_set1_groups_list	SSL_CTX_set1_groups_list
    #define SSL_set1_groups			SSL_set1_groups
    #define SSL_set1_groups_list		SSL_set1_groups_list
    
    #define SSL_CTX_get_min_proto_version	SSL_CTX_get_min_proto_version
    #define SSL_CTX_get_max_proto_version	SSL_CTX_get_max_proto_version
    #define SSL_CTX_set_min_proto_version	SSL_CTX_set_min_proto_version
    #define SSL_CTX_set_max_proto_version	SSL_CTX_set_max_proto_version
    
    #define SSL_get_min_proto_version	SSL_get_min_proto_version
    #define SSL_get_max_proto_version	SSL_get_max_proto_version
    #define SSL_set_min_proto_version	SSL_set_min_proto_version
    #define SSL_set_max_proto_version	SSL_set_max_proto_version
    #endif
    
    const 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);
    
    STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx);
    int	SSL_CTX_set_cipher_list(SSL_CTX *, const char *str);
    SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth);
    void	SSL_CTX_free(SSL_CTX *);
    int SSL_CTX_up_ref(SSL_CTX *ctx);
    long SSL_CTX_set_timeout(SSL_CTX *ctx, long t);
    long SSL_CTX_get_timeout(const SSL_CTX *ctx);
    X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *);
    void SSL_CTX_set_cert_store(SSL_CTX *, X509_STORE *);
    X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx);
    int SSL_want(const SSL *s);
    int	SSL_clear(SSL *s);
    
    void	SSL_CTX_flush_sessions(SSL_CTX *ctx, long tm);
    
    const SSL_CIPHER *SSL_get_current_cipher(const SSL *s);
    const SSL_CIPHER *SSL_CIPHER_get_by_id(unsigned int id);
    const SSL_CIPHER *SSL_CIPHER_get_by_value(uint16_t value);
    int	SSL_CIPHER_get_bits(const SSL_CIPHER *c, int *alg_bits);
    const char *	SSL_CIPHER_get_version(const SSL_CIPHER *c);
    const char *	SSL_CIPHER_get_name(const SSL_CIPHER *c);
    unsigned long 	SSL_CIPHER_get_id(const SSL_CIPHER *c);
    uint16_t SSL_CIPHER_get_value(const SSL_CIPHER *c);
    int SSL_CIPHER_get_cipher_nid(const SSL_CIPHER *c);
    int SSL_CIPHER_get_digest_nid(const SSL_CIPHER *c);
    int SSL_CIPHER_get_kx_nid(const SSL_CIPHER *c);
    int SSL_CIPHER_get_auth_nid(const SSL_CIPHER *c);
    int SSL_CIPHER_is_aead(const SSL_CIPHER *c);
    
    int	SSL_get_fd(const SSL *s);
    int	SSL_get_rfd(const SSL *s);
    int	SSL_get_wfd(const SSL *s);
    const char  * SSL_get_cipher_list(const SSL *s, int n);
    char *	SSL_get_shared_ciphers(const SSL *s, char *buf, int len);
    int	SSL_get_read_ahead(const SSL * s);
    int	SSL_pending(const SSL *s);
    int	SSL_set_fd(SSL *s, int fd);
    int	SSL_set_rfd(SSL *s, int fd);
    int	SSL_set_wfd(SSL *s, int fd);
    void	SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio);
    BIO *	SSL_get_rbio(const SSL *s);
    BIO *	SSL_get_wbio(const SSL *s);
    int	SSL_set_cipher_list(SSL *s, const char *str);
    void	SSL_set_read_ahead(SSL *s, int yes);
    int	SSL_get_verify_mode(const SSL *s);
    int	SSL_get_verify_depth(const SSL *s);
    int	(*SSL_get_verify_callback(const 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);
    int	SSL_use_RSAPrivateKey(SSL *ssl, RSA *rsa);
    int	SSL_use_RSAPrivateKey_ASN1(SSL *ssl, const unsigned char *d, long len);
    int	SSL_use_PrivateKey(SSL *ssl, EVP_PKEY *pkey);
    int	SSL_use_PrivateKey_ASN1(int pk, SSL *ssl, const unsigned char *d, long len);
    int	SSL_use_certificate(SSL *ssl, X509 *x);
    int	SSL_use_certificate_ASN1(SSL *ssl, const unsigned char *d, int len);
    
    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 */
    int	SSL_CTX_use_certificate_chain_mem(SSL_CTX *ctx, void *buf, int len);
    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);
    
    void	SSL_load_error_strings(void );
    const char *SSL_state_string(const SSL *s);
    const char *SSL_rstate_string(const SSL *s);
    const char *SSL_state_string_long(const SSL *s);
    const char *SSL_rstate_string_long(const SSL *s);
    size_t	SSL_SESSION_get_master_key(const SSL_SESSION *ss,
    	    unsigned char *out, size_t max_out);
    int	SSL_SESSION_get_protocol_version(const SSL_SESSION *s);
    long	SSL_SESSION_get_time(const SSL_SESSION *s);
    long	SSL_SESSION_set_time(SSL_SESSION *s, long t);
    long	SSL_SESSION_get_timeout(const SSL_SESSION *s);
    long	SSL_SESSION_set_timeout(SSL_SESSION *s, long t);
    int	SSL_copy_session_id(SSL *to, const SSL *from);
    X509	*SSL_SESSION_get0_peer(SSL_SESSION *s);
    int	SSL_SESSION_set1_id(SSL_SESSION *s, const unsigned char *sid,
    	    unsigned int sid_len);
    int	SSL_SESSION_set1_id_context(SSL_SESSION *s,
    	    const unsigned char *sid_ctx, unsigned int sid_ctx_len);
    
    SSL_SESSION *SSL_SESSION_new(void);
    void	SSL_SESSION_free(SSL_SESSION *ses);
    int	SSL_SESSION_up_ref(SSL_SESSION *ss);
    const unsigned char *SSL_SESSION_get_id(const SSL_SESSION *ss,
    	    unsigned int *len);
    const unsigned char *SSL_SESSION_get0_id_context(const SSL_SESSION *ss,
    	    unsigned int *len);
    unsigned long SSL_SESSION_get_ticket_lifetime_hint(const SSL_SESSION *s);
    int	SSL_SESSION_has_ticket(const SSL_SESSION *s);
    unsigned int SSL_SESSION_get_compress_id(const SSL_SESSION *ss);
    int	SSL_SESSION_print_fp(FILE *fp, const SSL_SESSION *ses);
    int	SSL_SESSION_print(BIO *fp, const SSL_SESSION *ses);
    int	i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp);
    int	SSL_set_session(SSL *to, SSL_SESSION *session);
    int	SSL_CTX_add_session(SSL_CTX *s, SSL_SESSION *c);
    int	SSL_CTX_remove_session(SSL_CTX *, SSL_SESSION *c);
    int	SSL_CTX_set_generate_session_id(SSL_CTX *, GEN_SESSION_CB);
    int	SSL_set_generate_session_id(SSL *, GEN_SESSION_CB);
    int	SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
    	    unsigned int id_len);
    SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, const unsigned char **pp,
    	    long length);
    
    #ifdef HEADER_X509_H
    X509 *	SSL_get_peer_certificate(const SSL *s);
    #endif
    
    STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s);
    
    int SSL_CTX_get_verify_mode(const SSL_CTX *ctx);
    int SSL_CTX_get_verify_depth(const SSL_CTX *ctx);
    int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int, X509_STORE_CTX *);
    void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
        int (*callback)(int, X509_STORE_CTX *));
    void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth);
    void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *, void *), void *arg);
    int SSL_CTX_use_RSAPrivateKey(SSL_CTX *ctx, RSA *rsa);
    int SSL_CTX_use_RSAPrivateKey_ASN1(SSL_CTX *ctx, const unsigned char *d, long len);
    int SSL_CTX_use_PrivateKey(SSL_CTX *ctx, EVP_PKEY *pkey);
    int SSL_CTX_use_PrivateKey_ASN1(int pk, SSL_CTX *ctx, const unsigned char *d, long len);
    int SSL_CTX_use_certificate(SSL_CTX *ctx, X509 *x);
    int SSL_CTX_use_certificate_ASN1(SSL_CTX *ctx, int len, const unsigned char *d);
    
    pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx);
    void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb);
    void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx);
    void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u);
    
    int SSL_CTX_check_private_key(const SSL_CTX *ctx);
    int SSL_check_private_key(const SSL *ctx);
    
    int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx, unsigned int sid_ctx_len);
    
    int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx, unsigned int sid_ctx_len);
    
    int SSL_CTX_set_purpose(SSL_CTX *s, int purpose);
    int SSL_set_purpose(SSL *s, int purpose);
    int SSL_CTX_set_trust(SSL_CTX *s, int trust);
    int SSL_set_trust(SSL *s, int trust);
    int SSL_set1_host(SSL *s, const char *hostname);
    
    X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx);
    int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm);
    X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl);
    int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm);
    
    SSL *SSL_new(SSL_CTX *ctx);
    void	SSL_free(SSL *ssl);
    int	SSL_up_ref(SSL *ssl);
    int 	SSL_accept(SSL *ssl);
    int 	SSL_connect(SSL *ssl);
    int	SSL_is_server(const SSL *s);
    int 	SSL_read(SSL *ssl, void *buf, int num);
    int 	SSL_peek(SSL *ssl, void *buf, int num);
    int 	SSL_write(SSL *ssl, const void *buf, int num);
    long	SSL_ctrl(SSL *ssl, int cmd, long larg, void *parg);
    long	SSL_callback_ctrl(SSL *, int, void (*)(void));
    long	SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg);
    long	SSL_CTX_callback_ctrl(SSL_CTX *, int, void (*)(void));
    
    int	SSL_get_error(const SSL *s, int ret_code);
    const char *SSL_get_version(const SSL *s);
    
    /* This sets the 'default' SSL version that SSL_new() will create */
    int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth);
    
    const SSL_METHOD *SSLv23_method(void);		/* SSLv3 or TLSv1.* */
    const SSL_METHOD *SSLv23_server_method(void);	/* SSLv3 or TLSv1.* */
    const SSL_METHOD *SSLv23_client_method(void);	/* SSLv3 or TLSv1.* */
    
    const SSL_METHOD *TLSv1_method(void);		/* TLSv1.0 */
    const SSL_METHOD *TLSv1_server_method(void);	/* TLSv1.0 */
    const SSL_METHOD *TLSv1_client_method(void);	/* TLSv1.0 */
    
    const SSL_METHOD *TLSv1_1_method(void);		/* TLSv1.1 */
    const SSL_METHOD *TLSv1_1_server_method(void);	/* TLSv1.1 */
    const SSL_METHOD *TLSv1_1_client_method(void);	/* TLSv1.1 */
    
    const SSL_METHOD *TLSv1_2_method(void);		/* TLSv1.2 */
    const SSL_METHOD *TLSv1_2_server_method(void);	/* TLSv1.2 */
    const SSL_METHOD *TLSv1_2_client_method(void);	/* TLSv1.2 */
    
    const SSL_METHOD *TLS_method(void);		/* TLS v1.0 or later */
    const SSL_METHOD *TLS_server_method(void);	/* TLS v1.0 or later */
    const SSL_METHOD *TLS_client_method(void);	/* TLS v1.0 or later */
    
    const SSL_METHOD *DTLSv1_method(void);		/* DTLSv1.0 */
    const SSL_METHOD *DTLSv1_server_method(void);	/* DTLSv1.0 */
    const SSL_METHOD *DTLSv1_client_method(void);	/* DTLSv1.0 */
    
    const SSL_METHOD *DTLS_method(void);		/* DTLS v1.0 or later */
    const SSL_METHOD *DTLS_server_method(void);	/* DTLS v1.0 or later */
    const SSL_METHOD *DTLS_client_method(void);	/* DTLS v1.0 or later */
    
    STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s);
    STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s);
    STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s);
    
    int SSL_do_handshake(SSL *s);
    int SSL_renegotiate(SSL *s);
    int SSL_renegotiate_abbreviated(SSL *s);
    int SSL_renegotiate_pending(SSL *s);
    int SSL_shutdown(SSL *s);
    
    const SSL_METHOD *SSL_get_ssl_method(SSL *s);
    int SSL_set_ssl_method(SSL *s, const SSL_METHOD *method);
    const char *SSL_alert_type_string_long(int value);
    const char *SSL_alert_type_string(int value);
    const char *SSL_alert_desc_string_long(int value);
    const char *SSL_alert_desc_string(int value);
    
    void SSL_set_client_CA_list(SSL *s, STACK_OF(X509_NAME) *name_list);
    void SSL_CTX_set_client_CA_list(SSL_CTX *ctx, STACK_OF(X509_NAME) *name_list);
    STACK_OF(X509_NAME) *SSL_get_client_CA_list(const SSL *s);
    STACK_OF(X509_NAME) *SSL_CTX_get_client_CA_list(const SSL_CTX *s);
    int SSL_add_client_CA(SSL *ssl, X509 *x);
    int SSL_CTX_add_client_CA(SSL_CTX *ctx, X509 *x);
    
    void SSL_set_connect_state(SSL *s);
    void SSL_set_accept_state(SSL *s);
    
    long SSL_get_default_timeout(const SSL *s);
    
    int SSL_library_init(void );
    
    char *SSL_CIPHER_description(const SSL_CIPHER *, char *buf, int size);
    STACK_OF(X509_NAME) *SSL_dup_CA_list(const STACK_OF(X509_NAME) *sk);
    
    SSL *SSL_dup(SSL *ssl);
    
    X509 *SSL_get_certificate(const SSL *ssl);
    /* EVP_PKEY */ struct evp_pkey_st *SSL_get_privatekey(const SSL *ssl);
    
    void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode);
    int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx);
    void SSL_set_quiet_shutdown(SSL *ssl,int mode);
    int SSL_get_quiet_shutdown(const SSL *ssl);
    void SSL_set_shutdown(SSL *ssl,int mode);
    int SSL_get_shutdown(const SSL *ssl);
    int SSL_version(const SSL *ssl);
    int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx);
    int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
        const char *CApath);
    int SSL_CTX_load_verify_mem(SSL_CTX *ctx, void *buf, int len);
    #define SSL_get0_session SSL_get_session /* just peek at pointer */
    SSL_SESSION *SSL_get_session(const SSL *ssl);
    SSL_SESSION *SSL_get1_session(SSL *ssl); /* obtain a reference count */
    SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl);
    SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx);
    void SSL_set_info_callback(SSL *ssl,
        void (*cb)(const SSL *ssl, int type, int val));
    void (*SSL_get_info_callback(const SSL *ssl))(const SSL *ssl, int type, int val);
    int SSL_state(const SSL *ssl);
    void SSL_set_state(SSL *ssl, int state);
    
    void SSL_set_verify_result(SSL *ssl, long v);
    long SSL_get_verify_result(const SSL *ssl);
    
    int SSL_set_ex_data(SSL *ssl, int idx, void *data);
    void *SSL_get_ex_data(const SSL *ssl, int idx);
    int SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
        CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
    
    int SSL_SESSION_set_ex_data(SSL_SESSION *ss, int idx, void *data);
    void *SSL_SESSION_get_ex_data(const SSL_SESSION *ss, int idx);
    int SSL_SESSION_get_ex_new_index(long argl, void *argp,
        CRYPTO_EX_new *new_func, CRYPTO_EX_dup *dup_func,
        CRYPTO_EX_free *free_func);
    
    int SSL_CTX_set_ex_data(SSL_CTX *ssl, int idx, void *data);
    void *SSL_CTX_get_ex_data(const SSL_CTX *ssl, int idx);
    int SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
        CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
    
    int SSL_get_ex_data_X509_STORE_CTX_idx(void );
    
    #define SSL_CTX_sess_set_cache_size(ctx,t) \
    	SSL_CTX_ctrl(ctx,SSL_CTRL_SET_SESS_CACHE_SIZE,t,NULL)
    #define SSL_CTX_sess_get_cache_size(ctx) \
    	SSL_CTX_ctrl(ctx,SSL_CTRL_GET_SESS_CACHE_SIZE,0,NULL)
    #define SSL_CTX_set_session_cache_mode(ctx,m) \
    	SSL_CTX_ctrl(ctx,SSL_CTRL_SET_SESS_CACHE_MODE,m,NULL)
    #define SSL_CTX_get_session_cache_mode(ctx) \
    	SSL_CTX_ctrl(ctx,SSL_CTRL_GET_SESS_CACHE_MODE,0,NULL)
    
    #define SSL_CTX_get_default_read_ahead(ctx) SSL_CTX_get_read_ahead(ctx)
    #define SSL_CTX_set_default_read_ahead(ctx,m) SSL_CTX_set_read_ahead(ctx,m)
    #define SSL_CTX_get_read_ahead(ctx) \
    	SSL_CTX_ctrl(ctx,SSL_CTRL_GET_READ_AHEAD,0,NULL)
    #define SSL_CTX_set_read_ahead(ctx,m) \
    	SSL_CTX_ctrl(ctx,SSL_CTRL_SET_READ_AHEAD,m,NULL)
    #define SSL_CTX_get_max_cert_list(ctx) \
    	SSL_CTX_ctrl(ctx,SSL_CTRL_GET_MAX_CERT_LIST,0,NULL)
    #define SSL_CTX_set_max_cert_list(ctx,m) \
    	SSL_CTX_ctrl(ctx,SSL_CTRL_SET_MAX_CERT_LIST,m,NULL)
    #define SSL_get_max_cert_list(ssl) \
    	SSL_ctrl(ssl,SSL_CTRL_GET_MAX_CERT_LIST,0,NULL)
    #define SSL_set_max_cert_list(ssl,m) \
    	SSL_ctrl(ssl,SSL_CTRL_SET_MAX_CERT_LIST,m,NULL)
    
    #define SSL_CTX_set_max_send_fragment(ctx,m) \
    	SSL_CTX_ctrl(ctx,SSL_CTRL_SET_MAX_SEND_FRAGMENT,m,NULL)
    #define SSL_set_max_send_fragment(ssl,m) \
    	SSL_ctrl(ssl,SSL_CTRL_SET_MAX_SEND_FRAGMENT,m,NULL)
    
    /* NB: the keylength is only applicable when is_export is true */
    void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,
        RSA *(*cb)(SSL *ssl, int is_export, int keylength));
    
    void SSL_set_tmp_rsa_callback(SSL *ssl,
        RSA *(*cb)(SSL *ssl, int is_export, int keylength));
    void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,
        DH *(*dh)(SSL *ssl, int is_export, int keylength));
    void SSL_set_tmp_dh_callback(SSL *ssl,
        DH *(*dh)(SSL *ssl, int is_export, int keylength));
    void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,
        EC_KEY *(*ecdh)(SSL *ssl, int is_export, int keylength));
    void SSL_set_tmp_ecdh_callback(SSL *ssl,
        EC_KEY *(*ecdh)(SSL *ssl, int is_export, int keylength));
    
    size_t SSL_get_client_random(const SSL *s, unsigned char *out, size_t max_out);
    size_t SSL_get_server_random(const SSL *s, unsigned char *out, size_t max_out);
    
    const void *SSL_get_current_compression(SSL *s);
    const void *SSL_get_current_expansion(SSL *s);
    
    const char *SSL_COMP_get_name(const void *comp);
    void *SSL_COMP_get_compression_methods(void);
    int SSL_COMP_add_compression_method(int id, void *cm);
    
    /* TLS extensions functions */
    int SSL_set_session_ticket_ext(SSL *s, void *ext_data, int ext_len);
    
    int SSL_set_session_ticket_ext_cb(SSL *s,
        tls_session_ticket_ext_cb_fn cb, void *arg);
    
    /* Pre-shared secret session resumption functions */
    int SSL_set_session_secret_cb(SSL *s,
        tls_session_secret_cb_fn tls_session_secret_cb, void *arg);
    
    void SSL_set_debug(SSL *s, int debug);
    int SSL_cache_hit(SSL *s);
    
    /* BEGIN ERROR CODES */
    /* The following lines are auto generated by the script mkerr.pl. Any changes
     * made after this point may be overwritten when the script is next run.
     */
    void ERR_load_SSL_strings(void);
    
    /* Error codes for the SSL functions. */
    
    /* Function codes. */
    #define SSL_F_CLIENT_CERTIFICATE			 100
    #define SSL_F_CLIENT_FINISHED				 167
    #define SSL_F_CLIENT_HELLO				 101
    #define SSL_F_CLIENT_MASTER_KEY				 102
    #define SSL_F_D2I_SSL_SESSION				 103
    #define SSL_F_DO_DTLS1_WRITE				 245
    #define SSL_F_DO_SSL3_WRITE				 104
    #define SSL_F_DTLS1_ACCEPT				 246
    #define SSL_F_DTLS1_ADD_CERT_TO_BUF			 295
    #define SSL_F_DTLS1_BUFFER_RECORD			 247
    #define SSL_F_DTLS1_CHECK_TIMEOUT_NUM			 316
    #define SSL_F_DTLS1_CLIENT_HELLO			 248
    #define SSL_F_DTLS1_CONNECT				 249
    #define SSL_F_DTLS1_ENC					 250
    #define SSL_F_DTLS1_GET_HELLO_VERIFY			 251
    #define SSL_F_DTLS1_GET_MESSAGE				 252
    #define SSL_F_DTLS1_GET_MESSAGE_FRAGMENT		 253
    #define SSL_F_DTLS1_GET_RECORD				 254
    #define SSL_F_DTLS1_HANDLE_TIMEOUT			 297
    #define SSL_F_DTLS1_HEARTBEAT				 305
    #define SSL_F_DTLS1_OUTPUT_CERT_CHAIN			 255
    #define SSL_F_DTLS1_PREPROCESS_FRAGMENT			 288
    #define SSL_F_DTLS1_PROCESS_OUT_OF_SEQ_MESSAGE		 256
    #define SSL_F_DTLS1_PROCESS_RECORD			 257
    #define SSL_F_DTLS1_READ_BYTES				 258
    #define SSL_F_DTLS1_READ_FAILED				 259
    #define SSL_F_DTLS1_SEND_CERTIFICATE_REQUEST		 260
    #define SSL_F_DTLS1_SEND_CLIENT_CERTIFICATE		 261
    #define SSL_F_DTLS1_SEND_CLIENT_KEY_EXCHANGE		 262
    #define SSL_F_DTLS1_SEND_CLIENT_VERIFY			 263
    #define SSL_F_DTLS1_SEND_HELLO_VERIFY_REQUEST		 264
    #define SSL_F_DTLS1_SEND_SERVER_CERTIFICATE		 265
    #define SSL_F_DTLS1_SEND_SERVER_HELLO			 266
    #define SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE		 267
    #define SSL_F_DTLS1_WRITE_APP_DATA_BYTES		 268
    #define SSL_F_GET_CLIENT_FINISHED			 105
    #define SSL_F_GET_CLIENT_HELLO				 106
    #define SSL_F_GET_CLIENT_MASTER_KEY			 107
    #define SSL_F_GET_SERVER_FINISHED			 108
    #define SSL_F_GET_SERVER_HELLO				 109
    #define SSL_F_GET_SERVER_VERIFY				 110
    #define SSL_F_I2D_SSL_SESSION				 111
    #define SSL_F_READ_N					 112
    #define SSL_F_REQUEST_CERTIFICATE			 113
    #define SSL_F_SERVER_FINISH				 239
    #define SSL_F_SERVER_HELLO				 114
    #define SSL_F_SERVER_VERIFY				 240
    #define SSL_F_SSL23_ACCEPT				 115
    #define SSL_F_SSL23_CLIENT_HELLO			 116
    #define SSL_F_SSL23_CONNECT				 117
    #define SSL_F_SSL23_GET_CLIENT_HELLO			 118
    #define SSL_F_SSL23_GET_SERVER_HELLO			 119
    #define SSL_F_SSL23_PEEK				 237
    #define SSL_F_SSL23_READ				 120
    #define SSL_F_SSL23_WRITE				 121
    #define SSL_F_SSL2_ACCEPT				 122
    #define SSL_F_SSL2_CONNECT				 123
    #define SSL_F_SSL2_ENC_INIT				 124
    #define SSL_F_SSL2_GENERATE_KEY_MATERIAL		 241
    #define SSL_F_SSL2_PEEK					 234
    #define SSL_F_SSL2_READ					 125
    #define SSL_F_SSL2_READ_INTERNAL			 236
    #define SSL_F_SSL2_SET_CERTIFICATE			 126
    #define SSL_F_SSL2_WRITE				 127
    #define SSL_F_SSL3_ACCEPT				 128
    #define SSL_F_SSL3_ADD_CERT_TO_BUF			 296
    #define SSL_F_SSL3_CALLBACK_CTRL			 233
    #define SSL_F_SSL3_CHANGE_CIPHER_STATE			 129
    #define SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM		 130
    #define SSL_F_SSL3_CHECK_CLIENT_HELLO			 304
    #define SSL_F_SSL3_CLIENT_HELLO				 131
    #define SSL_F_SSL3_CONNECT				 132
    #define SSL_F_SSL3_CTRL					 213
    #define SSL_F_SSL3_CTX_CTRL				 133
    #define SSL_F_SSL3_DIGEST_CACHED_RECORDS		 293
    #define SSL_F_SSL3_DO_CHANGE_CIPHER_SPEC		 292
    #define SSL_F_SSL3_ENC					 134
    #define SSL_F_SSL3_GENERATE_KEY_BLOCK			 238
    #define SSL_F_SSL3_GET_CERTIFICATE_REQUEST		 135
    #define SSL_F_SSL3_GET_CERT_STATUS			 289
    #define SSL_F_SSL3_GET_CERT_VERIFY			 136
    #define SSL_F_SSL3_GET_CLIENT_CERTIFICATE		 137
    #define SSL_F_SSL3_GET_CLIENT_HELLO			 138
    #define SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE		 139
    #define SSL_F_SSL3_GET_FINISHED				 140
    #define SSL_F_SSL3_GET_KEY_EXCHANGE			 141
    #define SSL_F_SSL3_GET_MESSAGE				 142
    #define SSL_F_SSL3_GET_NEW_SESSION_TICKET		 283
    #define SSL_F_SSL3_GET_NEXT_PROTO			 306
    #define SSL_F_SSL3_GET_RECORD				 143
    #define SSL_F_SSL3_GET_SERVER_CERTIFICATE		 144
    #define SSL_F_SSL3_GET_SERVER_DONE			 145
    #define SSL_F_SSL3_GET_SERVER_HELLO			 146
    #define SSL_F_SSL3_HANDSHAKE_MAC			 285
    #define SSL_F_SSL3_NEW_SESSION_TICKET			 287
    #define SSL_F_SSL3_OUTPUT_CERT_CHAIN			 147
    #define SSL_F_SSL3_PEEK					 235
    #define SSL_F_SSL3_READ_BYTES				 148
    #define SSL_F_SSL3_READ_N				 149
    #define SSL_F_SSL3_SEND_CERTIFICATE_REQUEST		 150
    #define SSL_F_SSL3_SEND_CLIENT_CERTIFICATE		 151
    #define SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE		 152
    #define SSL_F_SSL3_SEND_CLIENT_VERIFY			 153
    #define SSL_F_SSL3_SEND_SERVER_CERTIFICATE		 154
    #define SSL_F_SSL3_SEND_SERVER_HELLO			 242
    #define SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE		 155
    #define SSL_F_SSL3_SETUP_KEY_BLOCK			 157
    #define SSL_F_SSL3_SETUP_READ_BUFFER			 156
    #define SSL_F_SSL3_SETUP_WRITE_BUFFER			 291
    #define SSL_F_SSL3_WRITE_BYTES				 158
    #define SSL_F_SSL3_WRITE_PENDING			 159
    #define SSL_F_SSL_ADD_CLIENTHELLO_RENEGOTIATE_EXT	 298
    #define SSL_F_SSL_ADD_CLIENTHELLO_TLSEXT		 277
    #define SSL_F_SSL_ADD_CLIENTHELLO_USE_SRTP_EXT		 307
    #define SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK	 215
    #define SSL_F_SSL_ADD_FILE_CERT_SUBJECTS_TO_STACK	 216
    #define SSL_F_SSL_ADD_SERVERHELLO_RENEGOTIATE_EXT	 299
    #define SSL_F_SSL_ADD_SERVERHELLO_TLSEXT		 278
    #define SSL_F_SSL_ADD_SERVERHELLO_USE_SRTP_EXT		 308
    #define SSL_F_SSL_BAD_METHOD				 160
    #define SSL_F_SSL_BYTES_TO_CIPHER_LIST			 161
    #define SSL_F_SSL_CERT_DUP				 221
    #define SSL_F_SSL_CERT_INST				 222
    #define SSL_F_SSL_CERT_INSTANTIATE			 214
    #define SSL_F_SSL_CERT_NEW				 162
    #define SSL_F_SSL_CHECK_PRIVATE_KEY			 163
    #define SSL_F_SSL_CHECK_SERVERHELLO_TLSEXT		 280
    #define SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG		 279
    #define SSL_F_SSL_CIPHER_PROCESS_RULESTR		 230
    #define SSL_F_SSL_CIPHER_STRENGTH_SORT			 231
    #define SSL_F_SSL_CLEAR					 164
    #define SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD		 165
    #define SSL_F_SSL_CREATE_CIPHER_LIST			 166
    #define SSL_F_SSL_CTRL					 232
    #define SSL_F_SSL_CTX_CHECK_PRIVATE_KEY			 168
    #define SSL_F_SSL_CTX_MAKE_PROFILES			 309
    #define SSL_F_SSL_CTX_NEW				 169
    #define SSL_F_SSL_CTX_SET_CIPHER_LIST			 269
    #define SSL_F_SSL_CTX_SET_CLIENT_CERT_ENGINE		 290
    #define SSL_F_SSL_CTX_SET_PURPOSE			 226
    #define SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT		 219
    #define SSL_F_SSL_CTX_SET_SSL_VERSION			 170
    #define SSL_F_SSL_CTX_SET_TRUST				 229
    #define SSL_F_SSL_CTX_USE_CERTIFICATE			 171
    #define SSL_F_SSL_CTX_USE_CERTIFICATE_ASN1		 172
    #define SSL_F_SSL_CTX_USE_CERTIFICATE_CHAIN_FILE	 220
    #define SSL_F_SSL_CTX_USE_CERTIFICATE_FILE		 173
    #define SSL_F_SSL_CTX_USE_PRIVATEKEY			 174
    #define SSL_F_SSL_CTX_USE_PRIVATEKEY_ASN1		 175
    #define SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE		 176
    #define SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT		 272
    #define SSL_F_SSL_CTX_USE_RSAPRIVATEKEY			 177
    #define SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_ASN1		 178
    #define SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE		 179
    #define SSL_F_SSL_DO_HANDSHAKE				 180
    #define SSL_F_SSL_GET_NEW_SESSION			 181
    #define SSL_F_SSL_GET_PREV_SESSION			 217
    #define SSL_F_SSL_GET_SERVER_SEND_CERT			 182
    #define SSL_F_SSL_GET_SERVER_SEND_PKEY			 317
    #define SSL_F_SSL_GET_SIGN_PKEY				 183
    #define SSL_F_SSL_INIT_WBIO_BUFFER			 184
    #define SSL_F_SSL_LOAD_CLIENT_CA_FILE			 185
    #define SSL_F_SSL_NEW					 186
    #define SSL_F_SSL_PARSE_CLIENTHELLO_RENEGOTIATE_EXT	 300
    #define SSL_F_SSL_PARSE_CLIENTHELLO_TLSEXT		 302
    #define SSL_F_SSL_PARSE_CLIENTHELLO_USE_SRTP_EXT	 310
    #define SSL_F_SSL_PARSE_SERVERHELLO_RENEGOTIATE_EXT	 301
    #define SSL_F_SSL_PARSE_SERVERHELLO_TLSEXT		 303
    #define SSL_F_SSL_PARSE_SERVERHELLO_USE_SRTP_EXT	 311
    #define SSL_F_SSL_PEEK					 270
    #define SSL_F_SSL_PREPARE_CLIENTHELLO_TLSEXT		 281
    #define SSL_F_SSL_PREPARE_SERVERHELLO_TLSEXT		 282
    #define SSL_F_SSL_READ					 223
    #define SSL_F_SSL_RSA_PRIVATE_DECRYPT			 187
    #define SSL_F_SSL_RSA_PUBLIC_ENCRYPT			 188
    #define SSL_F_SSL_SESSION_NEW				 189
    #define SSL_F_SSL_SESSION_PRINT_FP			 190
    #define SSL_F_SSL_SESSION_SET1_ID_CONTEXT		 312
    #define SSL_F_SSL_SESS_CERT_NEW				 225
    #define SSL_F_SSL_SET_CERT				 191
    #define SSL_F_SSL_SET_CIPHER_LIST			 271
    #define SSL_F_SSL_SET_FD				 192
    #define SSL_F_SSL_SET_PKEY				 193
    #define SSL_F_SSL_SET_PURPOSE				 227
    #define SSL_F_SSL_SET_RFD				 194
    #define SSL_F_SSL_SET_SESSION				 195
    #define SSL_F_SSL_SET_SESSION_ID_CONTEXT		 218
    #define SSL_F_SSL_SET_SESSION_TICKET_EXT		 294
    #define SSL_F_SSL_SET_TRUST				 228
    #define SSL_F_SSL_SET_WFD				 196
    #define SSL_F_SSL_SHUTDOWN				 224
    #define SSL_F_SSL_SRP_CTX_INIT				 313
    #define SSL_F_SSL_UNDEFINED_CONST_FUNCTION		 243
    #define SSL_F_SSL_UNDEFINED_FUNCTION			 197
    #define SSL_F_SSL_UNDEFINED_VOID_FUNCTION		 244
    #define SSL_F_SSL_USE_CERTIFICATE			 198
    #define SSL_F_SSL_USE_CERTIFICATE_ASN1			 199
    #define SSL_F_SSL_USE_CERTIFICATE_FILE			 200
    #define SSL_F_SSL_USE_PRIVATEKEY			 201
    #define SSL_F_SSL_USE_PRIVATEKEY_ASN1			 202
    #define SSL_F_SSL_USE_PRIVATEKEY_FILE			 203
    #define SSL_F_SSL_USE_PSK_IDENTITY_HINT			 273
    #define SSL_F_SSL_USE_RSAPRIVATEKEY			 204
    #define SSL_F_SSL_USE_RSAPRIVATEKEY_ASN1		 205
    #define SSL_F_SSL_USE_RSAPRIVATEKEY_FILE		 206
    #define SSL_F_SSL_VERIFY_CERT_CHAIN			 207
    #define SSL_F_SSL_WRITE					 208
    #define SSL_F_TLS1_AEAD_CTX_INIT			 339
    #define SSL_F_TLS1_CERT_VERIFY_MAC			 286
    #define SSL_F_TLS1_CHANGE_CIPHER_STATE			 209
    #define SSL_F_TLS1_CHANGE_CIPHER_STATE_AEAD		 340
    #define SSL_F_TLS1_CHANGE_CIPHER_STATE_CIPHER		 338
    #define SSL_F_TLS1_CHECK_SERVERHELLO_TLSEXT		 274
    #define SSL_F_TLS1_ENC					 210
    #define SSL_F_TLS1_EXPORT_KEYING_MATERIAL		 314
    #define SSL_F_TLS1_HEARTBEAT				 315
    #define SSL_F_TLS1_PREPARE_CLIENTHELLO_TLSEXT		 275
    #define SSL_F_TLS1_PREPARE_SERVERHELLO_TLSEXT		 276
    #define SSL_F_TLS1_PRF					 284
    #define SSL_F_TLS1_SETUP_KEY_BLOCK			 211
    #define SSL_F_WRITE_PENDING				 212
    
    /* Reason codes. */
    #define SSL_R_APP_DATA_IN_HANDSHAKE			 100
    #define SSL_R_ATTEMPT_TO_REUSE_SESSION_IN_DIFFERENT_CONTEXT 272
    #define SSL_R_BAD_ALERT_RECORD				 101
    #define SSL_R_BAD_AUTHENTICATION_TYPE			 102
    #define SSL_R_BAD_CHANGE_CIPHER_SPEC			 103
    #define SSL_R_BAD_CHECKSUM				 104
    #define SSL_R_BAD_DATA_RETURNED_BY_CALLBACK		 106
    #define SSL_R_BAD_DECOMPRESSION				 107
    #define SSL_R_BAD_DH_G_LENGTH				 108
    #define SSL_R_BAD_DH_PUB_KEY_LENGTH			 109
    #define SSL_R_BAD_DH_P_LENGTH				 110
    #define SSL_R_BAD_DIGEST_LENGTH				 111
    #define SSL_R_BAD_DSA_SIGNATURE				 112
    #define SSL_R_BAD_ECC_CERT				 304
    #define SSL_R_BAD_ECDSA_SIGNATURE			 305
    #define SSL_R_BAD_ECPOINT				 306
    #define SSL_R_BAD_HANDSHAKE_LENGTH			 332
    #define SSL_R_BAD_HELLO_REQUEST				 105
    #define SSL_R_BAD_LENGTH				 271
    #define SSL_R_BAD_MAC_DECODE				 113
    #define SSL_R_BAD_MAC_LENGTH				 333
    #define SSL_R_BAD_MESSAGE_TYPE				 114
    #define SSL_R_BAD_PACKET_LENGTH				 115
    #define SSL_R_BAD_PROTOCOL_VERSION_NUMBER		 116
    #define SSL_R_BAD_PSK_IDENTITY_HINT_LENGTH		 316
    #define SSL_R_BAD_RESPONSE_ARGUMENT			 117
    #define SSL_R_BAD_RSA_DECRYPT				 118
    #define SSL_R_BAD_RSA_ENCRYPT				 119
    #define SSL_R_BAD_RSA_E_LENGTH				 120
    #define SSL_R_BAD_RSA_MODULUS_LENGTH			 121
    #define SSL_R_BAD_RSA_SIGNATURE				 122
    #define SSL_R_BAD_SIGNATURE				 123
    #define SSL_R_BAD_SRP_A_LENGTH				 347
    #define SSL_R_BAD_SRP_B_LENGTH				 348
    #define SSL_R_BAD_SRP_G_LENGTH				 349
    #define SSL_R_BAD_SRP_N_LENGTH				 350
    #define SSL_R_BAD_SRP_S_LENGTH				 351
    #define SSL_R_BAD_SRTP_MKI_VALUE			 352
    #define SSL_R_BAD_SRTP_PROTECTION_PROFILE_LIST		 353
    #define SSL_R_BAD_SSL_FILETYPE				 124
    #define SSL_R_BAD_SSL_SESSION_ID_LENGTH			 125
    #define SSL_R_BAD_STATE					 126
    #define SSL_R_BAD_WRITE_RETRY				 127
    #define SSL_R_BIO_NOT_SET				 128
    #define SSL_R_BLOCK_CIPHER_PAD_IS_WRONG			 129
    #define SSL_R_BN_LIB					 130
    #define SSL_R_CA_DN_LENGTH_MISMATCH			 131
    #define SSL_R_CA_DN_TOO_LONG				 132
    #define SSL_R_CCS_RECEIVED_EARLY			 133
    #define SSL_R_CERTIFICATE_VERIFY_FAILED			 134
    #define SSL_R_CERT_LENGTH_MISMATCH			 135
    #define SSL_R_CHALLENGE_IS_DIFFERENT			 136
    #define SSL_R_CIPHER_CODE_WRONG_LENGTH			 137
    #define SSL_R_CIPHER_COMPRESSION_UNAVAILABLE		 371
    #define SSL_R_CIPHER_OR_HASH_UNAVAILABLE		 138
    #define SSL_R_CIPHER_TABLE_SRC_ERROR			 139
    #define SSL_R_CLIENTHELLO_TLSEXT			 226
    #define SSL_R_COMPRESSED_LENGTH_TOO_LONG		 140
    #define SSL_R_COMPRESSION_DISABLED			 343
    #define SSL_R_COMPRESSION_FAILURE			 141
    #define SSL_R_COMPRESSION_ID_NOT_WITHIN_PRIVATE_RANGE	 307
    #define SSL_R_COMPRESSION_LIBRARY_ERROR			 142
    #define SSL_R_CONNECTION_ID_IS_DIFFERENT		 143
    #define SSL_R_CONNECTION_TYPE_NOT_SET			 144
    #define SSL_R_COOKIE_MISMATCH				 308
    #define SSL_R_DATA_BETWEEN_CCS_AND_FINISHED		 145
    #define SSL_R_DATA_LENGTH_TOO_LONG			 146
    #define SSL_R_DECRYPTION_FAILED				 147
    #define SSL_R_DECRYPTION_FAILED_OR_BAD_RECORD_MAC	 281
    #define SSL_R_DH_PUBLIC_VALUE_LENGTH_IS_WRONG		 148
    #define SSL_R_DIGEST_CHECK_FAILED			 149
    #define SSL_R_DTLS_MESSAGE_TOO_BIG			 334
    #define SSL_R_DUPLICATE_COMPRESSION_ID			 309
    #define SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT		 317
    #define SSL_R_ECC_CERT_NOT_FOR_SIGNING			 318
    #define SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE	 322
    #define SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE	 323
    #define SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER		 310
    #define SSL_R_EMPTY_SRTP_PROTECTION_PROFILE_LIST	 354
    #define SSL_R_ENCRYPTED_LENGTH_TOO_LONG			 150
    #define SSL_R_ERROR_GENERATING_TMP_RSA_KEY		 282
    #define SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST		 151
    #define SSL_R_EXCESSIVE_MESSAGE_SIZE			 152
    #define SSL_R_EXTRA_DATA_IN_MESSAGE			 153
    #define SSL_R_GOT_A_FIN_BEFORE_A_CCS			 154
    #define SSL_R_GOT_NEXT_PROTO_BEFORE_A_CCS		 355
    #define SSL_R_GOT_NEXT_PROTO_WITHOUT_EXTENSION		 356
    #define SSL_R_HTTPS_PROXY_REQUEST			 155
    #define SSL_R_HTTP_REQUEST				 156
    #define SSL_R_ILLEGAL_PADDING				 283
    #define SSL_R_INAPPROPRIATE_FALLBACK			 373
    #define SSL_R_INCONSISTENT_COMPRESSION			 340
    #define SSL_R_INVALID_CHALLENGE_LENGTH			 158
    #define SSL_R_INVALID_COMMAND				 280
    #define SSL_R_INVALID_COMPRESSION_ALGORITHM		 341
    #define SSL_R_INVALID_PURPOSE				 278
    #define SSL_R_INVALID_SRP_USERNAME			 357
    #define SSL_R_INVALID_STATUS_RESPONSE			 328
    #define SSL_R_INVALID_TICKET_KEYS_LENGTH		 325
    #define SSL_R_INVALID_TRUST				 279
    #define SSL_R_KEY_ARG_TOO_LONG				 284
    #define SSL_R_KRB5					 285
    #define SSL_R_KRB5_C_CC_PRINC				 286
    #define SSL_R_KRB5_C_GET_CRED				 287
    #define SSL_R_KRB5_C_INIT				 288
    #define SSL_R_KRB5_C_MK_REQ				 289
    #define SSL_R_KRB5_S_BAD_TICKET				 290
    #define SSL_R_KRB5_S_INIT				 291
    #define SSL_R_KRB5_S_RD_REQ				 292
    #define SSL_R_KRB5_S_TKT_EXPIRED			 293
    #define SSL_R_KRB5_S_TKT_NYV				 294
    #define SSL_R_KRB5_S_TKT_SKEW				 295
    #define SSL_R_LENGTH_MISMATCH				 159
    #define SSL_R_LENGTH_TOO_SHORT				 160
    #define SSL_R_LIBRARY_BUG				 274
    #define SSL_R_LIBRARY_HAS_NO_CIPHERS			 161
    #define SSL_R_MESSAGE_TOO_LONG				 296
    #define SSL_R_MISSING_DH_DSA_CERT			 162
    #define SSL_R_MISSING_DH_KEY				 163
    #define SSL_R_MISSING_DH_RSA_CERT			 164
    #define SSL_R_MISSING_DSA_SIGNING_CERT			 165
    #define SSL_R_MISSING_EXPORT_TMP_DH_KEY			 166
    #define SSL_R_MISSING_EXPORT_TMP_RSA_KEY		 167
    #define SSL_R_MISSING_RSA_CERTIFICATE			 168
    #define SSL_R_MISSING_RSA_ENCRYPTING_CERT		 169
    #define SSL_R_MISSING_RSA_SIGNING_CERT			 170
    #define SSL_R_MISSING_SRP_PARAM				 358
    #define SSL_R_MISSING_TMP_DH_KEY			 171
    #define SSL_R_MISSING_TMP_ECDH_KEY			 311
    #define SSL_R_MISSING_TMP_RSA_KEY			 172
    #define SSL_R_MISSING_TMP_RSA_PKEY			 173
    #define SSL_R_MISSING_VERIFY_MESSAGE			 174
    #define SSL_R_MULTIPLE_SGC_RESTARTS			 346
    #define SSL_R_NON_SSLV2_INITIAL_PACKET			 175
    #define SSL_R_NO_CERTIFICATES_RETURNED			 176
    #define SSL_R_NO_CERTIFICATE_ASSIGNED			 177
    #define SSL_R_NO_CERTIFICATE_RETURNED			 178
    #define SSL_R_NO_CERTIFICATE_SET			 179
    #define SSL_R_NO_CERTIFICATE_SPECIFIED			 180
    #define SSL_R_NO_CIPHERS_AVAILABLE			 181
    #define SSL_R_NO_CIPHERS_PASSED				 182
    #define SSL_R_NO_CIPHERS_SPECIFIED			 183
    #define SSL_R_NO_CIPHER_LIST				 184
    #define SSL_R_NO_CIPHER_MATCH				 185
    #define SSL_R_NO_CLIENT_CERT_METHOD			 331
    #define SSL_R_NO_CLIENT_CERT_RECEIVED			 186
    #define SSL_R_NO_COMPRESSION_SPECIFIED			 187
    #define SSL_R_NO_GOST_CERTIFICATE_SENT_BY_PEER		 330
    #define SSL_R_NO_METHOD_SPECIFIED			 188
    #define SSL_R_NO_PRIVATEKEY				 189
    #define SSL_R_NO_PRIVATE_KEY_ASSIGNED			 190
    #define SSL_R_NO_PROTOCOLS_AVAILABLE			 191
    #define SSL_R_NO_PUBLICKEY				 192
    #define SSL_R_NO_RENEGOTIATION				 339
    #define SSL_R_NO_REQUIRED_DIGEST			 324
    #define SSL_R_NO_SHARED_CIPHER				 193
    #define SSL_R_NO_SRTP_PROFILES				 359
    #define SSL_R_NO_VERIFY_CALLBACK			 194
    #define SSL_R_NULL_SSL_CTX				 195
    #define SSL_R_NULL_SSL_METHOD_PASSED			 196
    #define SSL_R_OLD_SESSION_CIPHER_NOT_RETURNED		 197
    #define SSL_R_OLD_SESSION_COMPRESSION_ALGORITHM_NOT_RETURNED 344
    #define SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE		 297
    #define SSL_R_PACKET_LENGTH_TOO_LONG			 198
    #define SSL_R_PARSE_TLSEXT				 227
    #define SSL_R_PATH_TOO_LONG				 270
    #define SSL_R_PEER_DID_NOT_RETURN_A_CERTIFICATE		 199
    #define SSL_R_PEER_ERROR				 200
    #define SSL_R_PEER_ERROR_CERTIFICATE			 201
    #define SSL_R_PEER_ERROR_NO_CERTIFICATE			 202
    #define SSL_R_PEER_ERROR_NO_CIPHER			 203
    #define SSL_R_PEER_ERROR_UNSUPPORTED_CERTIFICATE_TYPE	 204
    #define SSL_R_PRE_MAC_LENGTH_TOO_LONG			 205
    #define SSL_R_PROBLEMS_MAPPING_CIPHER_FUNCTIONS		 206
    #define SSL_R_PROTOCOL_IS_SHUTDOWN			 207
    #define SSL_R_PSK_IDENTITY_NOT_FOUND			 223
    #define SSL_R_PSK_NO_CLIENT_CB				 224
    #define SSL_R_PSK_NO_SERVER_CB				 225
    #define SSL_R_PUBLIC_KEY_ENCRYPT_ERROR			 208
    #define SSL_R_PUBLIC_KEY_IS_NOT_RSA			 209
    #define SSL_R_PUBLIC_KEY_NOT_RSA			 210
    #define SSL_R_READ_BIO_NOT_SET				 211
    #define SSL_R_READ_TIMEOUT_EXPIRED			 312
    #define SSL_R_READ_WRONG_PACKET_TYPE			 212
    #define SSL_R_RECORD_LENGTH_MISMATCH			 213
    #define SSL_R_RECORD_TOO_LARGE				 214
    #define SSL_R_RECORD_TOO_SMALL				 298
    #define SSL_R_RENEGOTIATE_EXT_TOO_LONG			 335
    #define SSL_R_RENEGOTIATION_ENCODING_ERR		 336
    #define SSL_R_RENEGOTIATION_MISMATCH			 337
    #define SSL_R_REQUIRED_CIPHER_MISSING			 215
    #define SSL_R_REQUIRED_COMPRESSSION_ALGORITHM_MISSING	 342
    #define SSL_R_REUSE_CERT_LENGTH_NOT_ZERO		 216
    #define SSL_R_REUSE_CERT_TYPE_NOT_ZERO			 217
    #define SSL_R_REUSE_CIPHER_LIST_NOT_ZERO		 218
    #define SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING		 345
    #define SSL_R_SERVERHELLO_TLSEXT			 275
    #define SSL_R_SESSION_ID_CONTEXT_UNINITIALIZED		 277
    #define SSL_R_SHORT_READ				 219
    #define SSL_R_SIGNATURE_ALGORITHMS_ERROR		 360
    #define SSL_R_SIGNATURE_FOR_NON_SIGNING_CERTIFICATE	 220
    #define SSL_R_SRP_A_CALC				 361
    #define SSL_R_SRTP_COULD_NOT_ALLOCATE_PROFILES		 362
    #define SSL_R_SRTP_PROTECTION_PROFILE_LIST_TOO_LONG	 363
    #define SSL_R_SRTP_UNKNOWN_PROTECTION_PROFILE		 364
    #define SSL_R_SSL23_DOING_SESSION_ID_REUSE		 221
    #define SSL_R_SSL2_CONNECTION_ID_TOO_LONG		 299
    #define SSL_R_SSL3_EXT_INVALID_ECPOINTFORMAT		 321
    #define SSL_R_SSL3_EXT_INVALID_SERVERNAME		 319
    #define SSL_R_SSL3_EXT_INVALID_SERVERNAME_TYPE		 320
    #define SSL_R_SSL3_SESSION_ID_TOO_LONG			 300
    #define SSL_R_SSL3_SESSION_ID_TOO_SHORT			 222
    #define SSL_R_SSLV3_ALERT_BAD_CERTIFICATE		 1042
    #define SSL_R_SSLV3_ALERT_BAD_RECORD_MAC		 1020
    #define SSL_R_SSLV3_ALERT_CERTIFICATE_EXPIRED		 1045
    #define SSL_R_SSLV3_ALERT_CERTIFICATE_REVOKED		 1044
    #define SSL_R_SSLV3_ALERT_CERTIFICATE_UNKNOWN		 1046
    #define SSL_R_SSLV3_ALERT_DECOMPRESSION_FAILURE		 1030
    #define SSL_R_SSLV3_ALERT_HANDSHAKE_FAILURE		 1040
    #define SSL_R_SSLV3_ALERT_ILLEGAL_PARAMETER		 1047
    #define SSL_R_SSLV3_ALERT_NO_CERTIFICATE		 1041
    #define SSL_R_SSLV3_ALERT_UNEXPECTED_MESSAGE		 1010
    #define SSL_R_SSLV3_ALERT_UNSUPPORTED_CERTIFICATE	 1043
    #define SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION	 228
    #define SSL_R_SSL_HANDSHAKE_FAILURE			 229
    #define SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS		 230
    #define SSL_R_SSL_SESSION_ID_CALLBACK_FAILED		 301
    #define SSL_R_SSL_SESSION_ID_CONFLICT			 302
    #define SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG		 273
    #define SSL_R_SSL_SESSION_ID_HAS_BAD_LENGTH		 303
    #define SSL_R_SSL_SESSION_ID_IS_DIFFERENT		 231
    #define SSL_R_SSL_SESSION_ID_TOO_LONG			 408
    #define SSL_R_TLSV1_ALERT_ACCESS_DENIED			 1049
    #define SSL_R_TLSV1_ALERT_DECODE_ERROR			 1050
    #define SSL_R_TLSV1_ALERT_DECRYPTION_FAILED		 1021
    #define SSL_R_TLSV1_ALERT_DECRYPT_ERROR			 1051
    #define SSL_R_TLSV1_ALERT_EXPORT_RESTRICTION		 1060
    #define SSL_R_TLSV1_ALERT_INAPPROPRIATE_FALLBACK	 1086
    #define SSL_R_TLSV1_ALERT_INSUFFICIENT_SECURITY		 1071
    #define SSL_R_TLSV1_ALERT_INTERNAL_ERROR		 1080
    #define SSL_R_TLSV1_ALERT_NO_RENEGOTIATION		 1100
    #define SSL_R_TLSV1_ALERT_PROTOCOL_VERSION		 1070
    #define SSL_R_TLSV1_ALERT_RECORD_OVERFLOW		 1022
    #define SSL_R_TLSV1_ALERT_UNKNOWN_CA			 1048
    #define SSL_R_TLSV1_ALERT_USER_CANCELLED		 1090
    #define SSL_R_TLSV1_BAD_CERTIFICATE_HASH_VALUE		 1114
    #define SSL_R_TLSV1_BAD_CERTIFICATE_STATUS_RESPONSE	 1113
    #define SSL_R_TLSV1_CERTIFICATE_UNOBTAINABLE		 1111
    #define SSL_R_TLSV1_UNRECOGNIZED_NAME			 1112
    #define SSL_R_TLSV1_UNSUPPORTED_EXTENSION		 1110
    #define SSL_R_TLS_CLIENT_CERT_REQ_WITH_ANON_CIPHER	 232
    #define SSL_R_TLS_HEARTBEAT_PEER_DOESNT_ACCEPT		 365
    #define SSL_R_TLS_HEARTBEAT_PENDING			 366
    #define SSL_R_TLS_ILLEGAL_EXPORTER_LABEL		 367
    #define SSL_R_TLS_INVALID_ECPOINTFORMAT_LIST		 157
    #define SSL_R_TLS_PEER_DID_NOT_RESPOND_WITH_CERTIFICATE_LIST 233
    #define SSL_R_TLS_RSA_ENCRYPTED_VALUE_LENGTH_IS_WRONG	 234
    #define SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER		 235
    #define SSL_R_UNABLE_TO_DECODE_DH_CERTS			 236
    #define SSL_R_UNABLE_TO_DECODE_ECDH_CERTS		 313
    #define SSL_R_UNABLE_TO_EXTRACT_PUBLIC_KEY		 237
    #define SSL_R_UNABLE_TO_FIND_DH_PARAMETERS		 238
    #define SSL_R_UNABLE_TO_FIND_ECDH_PARAMETERS		 314
    #define SSL_R_UNABLE_TO_FIND_PUBLIC_KEY_PARAMETERS	 239
    #define SSL_R_UNABLE_TO_FIND_SSL_METHOD			 240
    #define SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES		 241
    #define SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES		 242
    #define SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES		 243
    #define SSL_R_UNEXPECTED_MESSAGE			 244
    #define SSL_R_UNEXPECTED_RECORD				 245
    #define SSL_R_UNINITIALIZED				 276
    #define SSL_R_UNKNOWN_ALERT_TYPE			 246
    #define SSL_R_UNKNOWN_CERTIFICATE_TYPE			 247
    #define SSL_R_UNKNOWN_CIPHER_RETURNED			 248
    #define SSL_R_UNKNOWN_CIPHER_TYPE			 249
    #define SSL_R_UNKNOWN_DIGEST				 368
    #define SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE			 250
    #define SSL_R_UNKNOWN_PKEY_TYPE				 251
    #define SSL_R_UNKNOWN_PROTOCOL				 252
    #define SSL_R_UNKNOWN_REMOTE_ERROR_TYPE			 253
    #define SSL_R_UNKNOWN_SSL_VERSION			 254
    #define SSL_R_UNKNOWN_STATE				 255
    #define SSL_R_UNSAFE_LEGACY_RENEGOTIATION_DISABLED	 338
    #define SSL_R_UNSUPPORTED_CIPHER			 256
    #define SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM		 257
    #define SSL_R_UNSUPPORTED_DIGEST_TYPE			 326
    #define SSL_R_UNSUPPORTED_ELLIPTIC_CURVE		 315
    #define SSL_R_UNSUPPORTED_PROTOCOL			 258
    #define SSL_R_UNSUPPORTED_SSL_VERSION			 259
    #define SSL_R_UNSUPPORTED_STATUS_TYPE			 329
    #define SSL_R_USE_SRTP_NOT_NEGOTIATED			 369
    #define SSL_R_WRITE_BIO_NOT_SET				 260
    #define SSL_R_WRONG_CIPHER_RETURNED			 261
    #define SSL_R_WRONG_CURVE				 378
    #define SSL_R_WRONG_MESSAGE_TYPE			 262
    #define SSL_R_WRONG_NUMBER_OF_KEY_BITS			 263
    #define SSL_R_WRONG_SIGNATURE_LENGTH			 264
    #define SSL_R_WRONG_SIGNATURE_SIZE			 265
    #define SSL_R_WRONG_SIGNATURE_TYPE			 370
    #define SSL_R_WRONG_SSL_VERSION				 266
    #define SSL_R_WRONG_VERSION_NUMBER			 267
    #define SSL_R_X509_LIB					 268
    #define SSL_R_X509_VERIFICATION_SETUP_PROBLEMS		 269
    #define SSL_R_PEER_BEHAVING_BADLY			 666
    #define SSL_R_UNKNOWN					 999
    
    /*
     * OpenSSL compatible OPENSSL_INIT options
     */
    
    /*
     * These are provided for compatibiliy, but have no effect
     * on how LibreSSL is initialized.
     */
    #define OPENSSL_INIT_LOAD_SSL_STRINGS	_OPENSSL_INIT_FLAG_NOOP
    #define OPENSSL_INIT_SSL_DEFAULT	_OPENSSL_INIT_FLAG_NOOP
    
    int OPENSSL_init_ssl(uint64_t opts, const void *settings);
    
    #ifdef  __cplusplus
    }
    #endif
    #endif