text: /* 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 <openssl/e_os2.h>
  # include <openssl/opensslconf.h>
  # include <openssl/comp.h>
  # include <openssl/bio.h>
  # if OPENSSL_API_COMPAT < 0x10100000L
  #  include <openssl/x509.h>
  #  include <openssl/crypto.h>
  #  include <openssl/lhash.h>
  #  include <openssl/buffer.h>
  # endif
  # include <openssl/pem.h>
  # include <openssl/hmac.h>
  # include <openssl/async.h>
  
  # include <openssl/safestack.h>
  # include <openssl/symhacks.h>
  # include <openssl/ct.h>
  
  #ifdef  __cplusplus
  extern "C" {
  #endif
  
  /* OpenSSL 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
  
  # 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
  
  /* The maximum number of encrypt/decrypt pipelines we can support */
  # define SSL_MAX_PIPELINES  32
  
  /* text strings for the ciphers */
  
  /* 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_FIPS            "FIPS"
  
  # define SSL_TXT_aNULL           "aNULL"
  # define SSL_TXT_eNULL           "eNULL"
  # define SSL_TXT_NULL            "NULL"
  
  # define SSL_TXT_kRSA            "kRSA"
  # define SSL_TXT_kDHr            "kDHr"
  # define SSL_TXT_kDHd            "kDHd"
  # define SSL_TXT_kDH             "kDH"
  # define SSL_TXT_kEDH            "kEDH"/* alias for kDHE */
  # define SSL_TXT_kDHE            "kDHE"
  # define SSL_TXT_kECDHr          "kECDHr"
  # define SSL_TXT_kECDHe          "kECDHe"
  # define SSL_TXT_kECDH           "kECDH"
  # define SSL_TXT_kEECDH          "kEECDH"/* alias for kECDHE */
  # define SSL_TXT_kECDHE          "kECDHE"
  # define SSL_TXT_kPSK            "kPSK"
  # define SSL_TXT_kRSAPSK         "kRSAPSK"
  # define SSL_TXT_kECDHEPSK       "kECDHEPSK"
  # define SSL_TXT_kDHEPSK         "kDHEPSK"
  # 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"
  # define SSL_TXT_aECDH           "aECDH"
  # define SSL_TXT_aECDSA          "aECDSA"
  # define SSL_TXT_aPSK            "aPSK"
  # define SSL_TXT_aGOST94         "aGOST94"
  # define SSL_TXT_aGOST01         "aGOST01"
  # define SSL_TXT_aGOST12         "aGOST12"
  # define SSL_TXT_aGOST           "aGOST"
  # define SSL_TXT_aSRP            "aSRP"
  
  # define SSL_TXT_DSS             "DSS"
  # define SSL_TXT_DH              "DH"
  # define SSL_TXT_DHE             "DHE"/* same as "kDHE:-ADH" */
  # define SSL_TXT_EDH             "EDH"/* alias for DHE */
  # define SSL_TXT_ADH             "ADH"
  # define SSL_TXT_RSA             "RSA"
  # define SSL_TXT_ECDH            "ECDH"
  # define SSL_TXT_EECDH           "EECDH"/* alias for ECDHE" */
  # define SSL_TXT_ECDHE           "ECDHE"/* same as "kECDHE:-AECDH" */
  # define SSL_TXT_AECDH           "AECDH"
  # define SSL_TXT_ECDSA           "ECDSA"
  # 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_AES_CCM         "AESCCM"
  # define SSL_TXT_AES_CCM_8       "AESCCM8"
  # define SSL_TXT_CAMELLIA128     "CAMELLIA128"
  # define SSL_TXT_CAMELLIA256     "CAMELLIA256"
  # define SSL_TXT_CAMELLIA        "CAMELLIA"
  # define SSL_TXT_CHACHA20        "CHACHA20"
  # define SSL_TXT_GOST            "GOST89"
  
  # 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_GOST12          "GOST12"
  # define SSL_TXT_GOST89MAC12     "GOST89MAC12"
  # define SSL_TXT_SHA256          "SHA256"
  # define SSL_TXT_SHA384          "SHA384"
  
  # define SSL_TXT_SSLV3           "SSLv3"
  # define SSL_TXT_TLSV1           "TLSv1"
  # define SSL_TXT_TLSV1_1         "TLSv1.1"
  # define SSL_TXT_TLSV1_2         "TLSv1.2"
  
  # 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:!COMPLEMENTOFDEFAULT:!eNULL"
  /*
   * 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
  
  #ifdef __cplusplus
  }
  #endif
  
  #ifdef  __cplusplus
  extern "C" {
  #endif
  
  # define SSL_FILETYPE_ASN1       X509_FILETYPE_ASN1
  # define SSL_FILETYPE_PEM        X509_FILETYPE_PEM
  
  /*
   * This is needed to stop compilers complaining about the 'struct ssl_st *'
   * function parameters used to prototype callbacks in SSL_CTX.
   */
  typedef struct ssl_st *ssl_crock_st;
  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;
  typedef struct tls_sigalgs_st TLS_SIGALGS;
  typedef struct ssl_conf_ctx_st SSL_CONF_CTX;
  typedef struct ssl_comp_st SSL_COMP;
  
  STACK_OF(SSL_CIPHER);
  STACK_OF(SSL_COMP);
  
  /* 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;
  
  DEFINE_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,
                                           const SSL_CIPHER **cipher, void *arg);
  
  /* Typedefs for handling custom extensions */
  
  typedef int (*custom_ext_add_cb) (SSL *s, unsigned int ext_type,
                                    const unsigned char **out,
                                    size_t *outlen, int *al, void *add_arg);
  
  typedef void (*custom_ext_free_cb) (SSL *s, unsigned int ext_type,
                                      const unsigned char *out, void *add_arg);
  
  typedef int (*custom_ext_parse_cb) (SSL *s, unsigned int ext_type,
                                      const unsigned char *in,
                                      size_t inlen, int *al, void *parse_arg);
  
  /* Allow initial connection to servers that don't support RI */
  # define SSL_OP_LEGACY_SERVER_CONNECT                    0x00000004U
  /* Removed from OpenSSL 0.9.8q and 1.0.0c */
  /* Dead forever, see CVE-2010-4180. */
  # define SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG         0x0U
  # define SSL_OP_TLSEXT_PADDING                           0x00000010U
  # define SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER               0x0U
  # define SSL_OP_SAFARI_ECDHE_ECDSA_BUG                   0x00000040U
  /* Ancient SSLeay version, retained for compatibility */
  # define SSL_OP_SSLEAY_080_CLIENT_DH_BUG                 0x0
  # define SSL_OP_TLS_D5_BUG                               0x0U
  /* Removed from OpenSSL 1.1.0 */
  # define SSL_OP_TLS_BLOCK_PADDING_BUG                    0x0U
  
  /* Hasn't done anything since OpenSSL 0.9.7h, retained for compatibility */
  # define SSL_OP_MSIE_SSLV2_RSA_PADDING                   0x0
  /* Refers to ancient SSLREF and SSLv2, retained for compatibility */
  # define SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG              0x0
  /* Related to removed SSLv2 */
  # define SSL_OP_MICROSOFT_SESS_ID_BUG                    0x0
  # define SSL_OP_NETSCAPE_CHALLENGE_BUG                   0x0
  
  /*
   * 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 we include it in
   * SSL_OP_ALL.
   */
  /* added in 0.9.6e */
  # define SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS              0x00000800U
  
  /*
   * SSL_OP_ALL: various bug workarounds that should be rather harmless.  This
   * used to be 0x000FFFFFL before 0.9.7.
   */
  # define SSL_OP_ALL                                      0x80000BFFU
  
  /* DTLS options */
  # define SSL_OP_NO_QUERY_MTU                 0x00001000U
  /* Turn on Cookie Exchange (on relevant for servers) */
  # define SSL_OP_COOKIE_EXCHANGE              0x00002000U
  /* Don't use RFC4507 ticket extension */
  # define SSL_OP_NO_TICKET                    0x00004000U
  /* Use Cisco's "speshul" version of DTLS_BAD_VER (as client)  */
  # define SSL_OP_CISCO_ANYCONNECT             0x00008000U
  
  /* As server, disallow session resumption on renegotiation */
  # define SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION   0x00010000U
  /* Don't use compression even if supported */
  # define SSL_OP_NO_COMPRESSION                           0x00020000U
  /* Permit unsafe legacy renegotiation */
  # define SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION        0x00040000U
  /* Does nothing: retained for compatibility */
  # define SSL_OP_SINGLE_ECDH_USE                          0x0
  /* Does nothing: retained for compatibility */
  # define SSL_OP_SINGLE_DH_USE                            0x0
  /* Does nothing: retained for compatibiity */
  # define SSL_OP_EPHEMERAL_RSA                            0x0
  /*
   * Set on servers to choose the cipher according to the server's preferences
   */
  # define SSL_OP_CIPHER_SERVER_PREFERENCE                 0x00400000U
  /*
   * If set, a server will allow a client to issue a SSLv3.0 version number as
   * latest version supported in the premaster secret, even when TLSv1.0
   * (version 3.1) was announced in the client hello. Normally this is
   * forbidden to prevent version rollback attacks.
   */
  # define SSL_OP_TLS_ROLLBACK_BUG                         0x00800000U
  
  # define SSL_OP_NO_SSLv2                                 0x00000000U
  # define SSL_OP_NO_SSLv3                                 0x02000000U
  # define SSL_OP_NO_TLSv1                                 0x04000000U
  # define SSL_OP_NO_TLSv1_2                               0x08000000U
  # define SSL_OP_NO_TLSv1_1                               0x10000000U
  
  # define SSL_OP_NO_DTLSv1                                0x04000000U
  # define SSL_OP_NO_DTLSv1_2                              0x08000000U
  
  # define SSL_OP_NO_SSL_MASK (SSL_OP_NO_SSLv3|\
          SSL_OP_NO_TLSv1|SSL_OP_NO_TLSv1_1|SSL_OP_NO_TLSv1_2)
  # define SSL_OP_NO_DTLS_MASK (SSL_OP_NO_DTLSv1|SSL_OP_NO_DTLSv1_2)
  
  
  /* Removed from previous versions */
  # define SSL_OP_PKCS1_CHECK_1                            0x0
  # define SSL_OP_PKCS1_CHECK_2                            0x0
  # define SSL_OP_NETSCAPE_CA_DN_BUG                       0x0
  # define SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG          0x0U
  /*
   * Make server add server-hello extension from early version of cryptopro
   * draft, when GOST ciphersuite is negotiated. Required for interoperability
   * with CryptoPro CSP 3.x
   */
  # define SSL_OP_CRYPTOPRO_TLSEXT_BUG                     0x80000000U
  
  /*
   * 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       0x00000001U
  /*
   * 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 0x00000002U
  /*
   * Never bother the application with retries if the transport is blocking:
   */
  # define SSL_MODE_AUTO_RETRY 0x00000004U
  /* Don't attempt to automatically build certificate chain */
  # define SSL_MODE_NO_AUTO_CHAIN 0x00000008U
  /*
   * 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 0x00000010U
  /*
   * Send the current time in the Random fields of the ClientHello and
   * ServerHello records for compatibility with hypothetical implementations
   * that require it.
   */
  # define SSL_MODE_SEND_CLIENTHELLO_TIME 0x00000020U
  # define SSL_MODE_SEND_SERVERHELLO_TIME 0x00000040U
  /*
   * Send TLS_FALLBACK_SCSV in the ClientHello. To be set only by applications
   * that reconnect with a downgraded protocol version; see
   * draft-ietf-tls-downgrade-scsv-00 for details. DO NOT ENABLE THIS if your
   * application attempts a normal handshake. Only use this in explicit
   * fallback retries, following the guidance in
   * draft-ietf-tls-downgrade-scsv-00.
   */
  # define SSL_MODE_SEND_FALLBACK_SCSV 0x00000080U
  /*
   * Support Asynchronous operation
   */
  # define SSL_MODE_ASYNC 0x00000100U
  
  /* Cert related flags */
  /*
   * Many implementations ignore some aspects of the TLS standards such as
   * enforcing certifcate chain algorithms. When this is set we enforce them.
   */
  # define SSL_CERT_FLAG_TLS_STRICT                0x00000001U
  
  /* Suite B modes, takes same values as certificate verify flags */
  # define SSL_CERT_FLAG_SUITEB_128_LOS_ONLY       0x10000
  /* Suite B 192 bit only mode */
  # define SSL_CERT_FLAG_SUITEB_192_LOS            0x20000
  /* Suite B 128 bit mode allowing 192 bit algorithms */
  # define SSL_CERT_FLAG_SUITEB_128_LOS            0x30000
  
  /* Perform all sorts of protocol violations for testing purposes */
  # define SSL_CERT_FLAG_BROKEN_PROTOCOL           0x10000000
  
  /* Flags for building certificate chains */
  /* Treat any existing certificates as untrusted CAs */
  # define SSL_BUILD_CHAIN_FLAG_UNTRUSTED          0x1
  /* Don't include root CA in chain */
  # define SSL_BUILD_CHAIN_FLAG_NO_ROOT            0x2
  /* Just check certificates already there */
  # define SSL_BUILD_CHAIN_FLAG_CHECK              0x4
  /* Ignore verification errors */
  # define SSL_BUILD_CHAIN_FLAG_IGNORE_ERROR       0x8
  /* Clear verification errors from queue */
  # define SSL_BUILD_CHAIN_FLAG_CLEAR_ERROR        0x10
  
  /* Flags returned by SSL_check_chain */
  /* Certificate can be used with this session */
  # define CERT_PKEY_VALID         0x1
  /* Certificate can also be used for signing */
  # define CERT_PKEY_SIGN          0x2
  /* EE certificate signing algorithm OK */
  # define CERT_PKEY_EE_SIGNATURE  0x10
  /* CA signature algorithms OK */
  # define CERT_PKEY_CA_SIGNATURE  0x20
  /* EE certificate parameters OK */
  # define CERT_PKEY_EE_PARAM      0x40
  /* CA certificate parameters OK */
  # define CERT_PKEY_CA_PARAM      0x80
  /* Signing explicitly allowed as opposed to SHA1 fallback */
  # define CERT_PKEY_EXPLICIT_SIGN 0x100
  /* Client CA issuer names match (always set for server cert) */
  # define CERT_PKEY_ISSUER_NAME   0x200
  /* Cert type matches client types (always set for server cert) */
  # define CERT_PKEY_CERT_TYPE     0x400
  /* Cert chain suitable to Suite B */
  # define CERT_PKEY_SUITEB        0x800
  
  # define SSL_CONF_FLAG_CMDLINE           0x1
  # define SSL_CONF_FLAG_FILE              0x2
  # define SSL_CONF_FLAG_CLIENT            0x4
  # define SSL_CONF_FLAG_SERVER            0x8
  # define SSL_CONF_FLAG_SHOW_ERRORS       0x10
  # define SSL_CONF_FLAG_CERTIFICATE       0x20
  # define SSL_CONF_FLAG_REQUIRE_PRIVATE   0x40
  /* Configuration value types */
  # define SSL_CONF_TYPE_UNKNOWN           0x0
  # define SSL_CONF_TYPE_STRING            0x1
  # define SSL_CONF_TYPE_FILE              0x2
  # define SSL_CONF_TYPE_DIR               0x3
  # define SSL_CONF_TYPE_NONE              0x4
  
  /*
   * Note: SSL[_CTX]_set_{options,mode} use |= op on the previous value, they
   * cannot be used to clear bits.
   */
  
  unsigned long SSL_CTX_get_options(const SSL_CTX *ctx);
  unsigned long SSL_get_options(const SSL* s);
  unsigned long SSL_CTX_clear_options(SSL_CTX *ctx, unsigned long op);
  unsigned long SSL_clear_options(SSL *s, unsigned long op);
  unsigned long SSL_CTX_set_options(SSL_CTX *ctx, unsigned long op);
  unsigned long SSL_set_options(SSL *s, unsigned long op);
  
  # 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 DTLS_set_link_mtu(ssl, mtu) \
          SSL_ctrl((ssl),DTLS_CTRL_SET_LINK_MTU,(mtu),NULL)
  # define DTLS_get_link_min_mtu(ssl) \
          SSL_ctrl((ssl),DTLS_CTRL_GET_LINK_MIN_MTU,0,NULL)
  
  # define SSL_get_secure_renegotiation_support(ssl) \
          SSL_ctrl((ssl), SSL_CTRL_GET_RI_SUPPORT, 0, NULL)
  
  # ifndef OPENSSL_NO_HEARTBEATS
  #  define SSL_heartbeat(ssl) \
          SSL_ctrl((ssl),SSL_CTRL_DTLS_EXT_SEND_HEARTBEAT,0,NULL)
  # endif
  
  # define SSL_CTX_set_cert_flags(ctx,op) \
          SSL_CTX_ctrl((ctx),SSL_CTRL_CERT_FLAGS,(op),NULL)
  # define SSL_set_cert_flags(s,op) \
          SSL_ctrl((s),SSL_CTRL_CERT_FLAGS,(op),NULL)
  # define SSL_CTX_clear_cert_flags(ctx,op) \
          SSL_CTX_ctrl((ctx),SSL_CTRL_CLEAR_CERT_FLAGS,(op),NULL)
  # define SSL_clear_cert_flags(s,op) \
          SSL_ctrl((s),SSL_CTRL_CLEAR_CERT_FLAGS,(op),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))
  
  # define SSL_get_extms_support(s) \
          SSL_ctrl((s),SSL_CTRL_GET_EXTMS_SUPPORT,0,NULL)
  
  # ifndef OPENSSL_NO_SRP
  
  /* see tls_srp.c */
  __owur int SSL_SRP_CTX_init(SSL *s);
  __owur int SSL_CTX_SRP_CTX_init(SSL_CTX *ctx);
  int SSL_SRP_CTX_free(SSL *ctx);
  int SSL_CTX_SRP_CTX_free(SSL_CTX *ctx);
  __owur int SSL_srp_server_param_with_username(SSL *s, int *ad);
  __owur int SRP_Calc_A_param(SSL *s);
  
  # endif
  
  /* 100k max cert list */
  # define SSL_MAX_CERT_LIST_DEFAULT 1024*100
  
  # 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 SSLv3/TLSv1 it is 32
   * bytes. The callback can alter this length to be less if desired. 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);
  
  # 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)
  
  LHASH_OF(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
  __owur 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));
  # ifndef OPENSSL_NO_NEXTPROTONEG
  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);
  void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
                                      unsigned *len);
  # endif
  
  __owur 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);
  
  # define OPENSSL_NPN_UNSUPPORTED 0
  # define OPENSSL_NPN_NEGOTIATED  1
  # define OPENSSL_NPN_NO_OVERLAP  2
  
  __owur int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
                                     unsigned int protos_len);
  __owur 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);
  
  # ifndef OPENSSL_NO_PSK
  /*
   * the maximum length of the buffer given to callbacks containing the
   * resulting identity/psk
   */
  #  define PSK_MAX_IDENTITY_LEN 128
  #  define PSK_MAX_PSK_LEN 256
  void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
                                       unsigned int (*psk_client_callback) (SSL
                                                                            *ssl,
                                                                            const
                                                                            char
                                                                            *hint,
                                                                            char
                                                                            *identity,
                                                                            unsigned
                                                                            int
                                                                            max_identity_len,
                                                                            unsigned
                                                                            char
                                                                            *psk,
                                                                            unsigned
                                                                            int
                                                                            max_psk_len));
  void SSL_set_psk_client_callback(SSL *ssl,
                                   unsigned int (*psk_client_callback) (SSL
                                                                        *ssl,
                                                                        const
                                                                        char
                                                                        *hint,
                                                                        char
                                                                        *identity,
                                                                        unsigned
                                                                        int
                                                                        max_identity_len,
                                                                        unsigned
                                                                        char
                                                                        *psk,
                                                                        unsigned
                                                                        int
                                                                        max_psk_len));
  void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
                                       unsigned int (*psk_server_callback) (SSL
                                                                            *ssl,
                                                                            const
                                                                            char
                                                                            *identity,
                                                                            unsigned
                                                                            char
                                                                            *psk,
                                                                            unsigned
                                                                            int
                                                                            max_psk_len));
  void SSL_set_psk_server_callback(SSL *ssl,
                                   unsigned int (*psk_server_callback) (SSL
                                                                        *ssl,
                                                                        const
                                                                        char
                                                                        *identity,
                                                                        unsigned
                                                                        char
                                                                        *psk,
                                                                        unsigned
                                                                        int
                                                                        max_psk_len));
  __owur int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint);
  __owur int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint);
  const char *SSL_get_psk_identity_hint(const SSL *s);
  const char *SSL_get_psk_identity(const SSL *s);
  # endif
  
  /* Register callbacks to handle custom TLS Extensions for client or server. */
  
  __owur int SSL_CTX_has_client_custom_ext(const SSL_CTX *ctx,
                                           unsigned int ext_type);
  
  __owur int SSL_CTX_add_client_custom_ext(SSL_CTX *ctx, unsigned int ext_type,
                                    custom_ext_add_cb add_cb,
                                    custom_ext_free_cb free_cb,
                                    void *add_arg,
                                    custom_ext_parse_cb parse_cb,
                                    void *parse_arg);
  
  __owur int SSL_CTX_add_server_custom_ext(SSL_CTX *ctx, unsigned int ext_type,
                                    custom_ext_add_cb add_cb,
                                    custom_ext_free_cb free_cb,
                                    void *add_arg,
                                    custom_ext_parse_cb parse_cb,
                                    void *parse_arg);
  
  __owur int SSL_extension_supported(unsigned int ext_type);
  
  # define SSL_NOTHING            1
  # define SSL_WRITING            2
  # define SSL_READING            3
  # define SSL_X509_LOOKUP        4
  # define SSL_ASYNC_PAUSED       5
  
  /* 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_want_async(s)       (SSL_want(s) == SSL_ASYNC_PAUSED)
  
  # define SSL_MAC_FLAG_READ_MAC_STREAM 1
  # define SSL_MAC_FLAG_WRITE_MAC_STREAM 2
  
  #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/srtp.h>      /* Support for the use_srtp extension */
  
  #ifdef  __cplusplus
  extern "C" {
  #endif
  
  /*
   * These need to be after the above set of includes due to a compiler bug
   * in VisualStudio 2015
   */
  DEFINE_STACK_OF_CONST(SSL_CIPHER)
  DEFINE_STACK_OF(SSL_COMP)
  
  /* 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))
  DEPRECATEDIN_1_1_0(void SSL_set_debug(SSL *s, int debug))
  
  
  /*
   * The valid handshake states (one for each type message sent and one for each
   * type of message received). There are also two "special" states:
   * TLS = TLS or DTLS state
   * DTLS = DTLS specific state
   * CR/SR = Client Read/Server Read
   * CW/SW = Client Write/Server Write
   *
   * The "special" states are:
   * TLS_ST_BEFORE = No handshake has been initiated yet
   * TLS_ST_OK = A handshake has been successfully completed
   */
  typedef enum {
      TLS_ST_BEFORE,
      TLS_ST_OK,
      DTLS_ST_CR_HELLO_VERIFY_REQUEST,
      TLS_ST_CR_SRVR_HELLO,
      TLS_ST_CR_CERT,
      TLS_ST_CR_CERT_STATUS,
      TLS_ST_CR_KEY_EXCH,
      TLS_ST_CR_CERT_REQ,
      TLS_ST_CR_SRVR_DONE,
      TLS_ST_CR_SESSION_TICKET,
      TLS_ST_CR_CHANGE,
      TLS_ST_CR_FINISHED,
      TLS_ST_CW_CLNT_HELLO,
      TLS_ST_CW_CERT,
      TLS_ST_CW_KEY_EXCH,
      TLS_ST_CW_CERT_VRFY,
      TLS_ST_CW_CHANGE,
      TLS_ST_CW_NEXT_PROTO,
      TLS_ST_CW_FINISHED,
      TLS_ST_SW_HELLO_REQ,
      TLS_ST_SR_CLNT_HELLO,
      DTLS_ST_SW_HELLO_VERIFY_REQUEST,
      TLS_ST_SW_SRVR_HELLO,
      TLS_ST_SW_CERT,
      TLS_ST_SW_KEY_EXCH,
      TLS_ST_SW_CERT_REQ,
      TLS_ST_SW_SRVR_DONE,
      TLS_ST_SR_CERT,
      TLS_ST_SR_KEY_EXCH,
      TLS_ST_SR_CERT_VRFY,
      TLS_ST_SR_NEXT_PROTO,
      TLS_ST_SR_CHANGE,
      TLS_ST_SR_FINISHED,
      TLS_ST_SW_SESSION_TICKET,
      TLS_ST_SW_CERT_STATUS,
      TLS_ST_SW_CHANGE,
      TLS_ST_SW_FINISHED
  } OSSL_HANDSHAKE_STATE;
  
  /*
   * Most of the following state values are no longer used and are defined to be
   * the closest equivalent value in the current state machine code. Not all
   * defines have an equivalent and are set to a dummy value (-1). SSL_ST_CONNECT
   * and SSL_ST_ACCEPT are still in use in the definition of SSL_CB_ACCEPT_LOOP,
   * SSL_CB_ACCEPT_EXIT, SSL_CB_CONNECT_LOOP and SSL_CB_CONNECT_EXIT.
   */
  
  # define SSL_ST_CONNECT                  0x1000
  # define SSL_ST_ACCEPT                   0x2000
  
  # define SSL_ST_MASK                     0x0FFF
  
  # 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_in_connect_init(a)          (SSL_in_init(a) && !SSL_is_server(a))
  # define SSL_in_accept_init(a)           (SSL_in_init(a) && SSL_is_server(a))
  int SSL_in_init(SSL *s);
  int SSL_in_before(SSL *s);
  int SSL_is_init_finished(SSL *s);
  
  /*
   * The following 3 states are kept in ssl->rlayer.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()
  # if OPENSSL_API_COMPAT < 0x10100000L
  #  define SSLeay_add_ssl_algorithms()    SSL_library_init()
  # endif
  
  /* More backward compatibility */
  # define SSL_get_cipher(s) \
                  SSL_CIPHER_get_name(SSL_get_current_cipher(s))
  # define SSL_get_cipher_bits(s,np) \
                  SSL_CIPHER_get_bits(SSL_get_current_cipher(s),np)
  # define SSL_get_cipher_version(s) \
                  SSL_CIPHER_get_version(SSL_get_current_cipher(s))
  # define SSL_get_cipher_name(s) \
                  SSL_CIPHER_get_name(SSL_get_current_cipher(s))
  # define SSL_get_time(a)         SSL_SESSION_get_time(a)
  # define SSL_set_time(a,b)       SSL_SESSION_set_time((a),(b))
  # define SSL_get_timeout(a)      SSL_SESSION_get_timeout(a)
  # define SSL_set_timeout(a,b)    SSL_SESSION_set_timeout((a),(b))
  
  # 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)
  
  DECLARE_PEM_rw(SSL_SESSION, SSL_SESSION)
  # 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
  /* fatal */
  # define SSL_AD_UNEXPECTED_MESSAGE       SSL3_AD_UNEXPECTED_MESSAGE
  /* fatal */
  # define SSL_AD_BAD_RECORD_MAC           SSL3_AD_BAD_RECORD_MAC
  # define SSL_AD_DECRYPTION_FAILED        TLS1_AD_DECRYPTION_FAILED
  # define SSL_AD_RECORD_OVERFLOW          TLS1_AD_RECORD_OVERFLOW
  /* fatal */
  # define SSL_AD_DECOMPRESSION_FAILURE    SSL3_AD_DECOMPRESSION_FAILURE
  /* fatal */
  # define SSL_AD_HANDSHAKE_FAILURE        SSL3_AD_HANDSHAKE_FAILURE
  /* Not for TLS */
  # define SSL_AD_NO_CERTIFICATE           SSL3_AD_NO_CERTIFICATE
  # 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
  /* fatal */
  # 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
  # define SSL_AD_DECRYPT_ERROR            TLS1_AD_DECRYPT_ERROR
  /* fatal */
  # 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
  # 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
  /* fatal */
  # define SSL_AD_UNKNOWN_PSK_IDENTITY     TLS1_AD_UNKNOWN_PSK_IDENTITY
  /* fatal */
  # define SSL_AD_INAPPROPRIATE_FALLBACK   TLS1_AD_INAPPROPRIATE_FALLBACK
  # define SSL_AD_NO_APPLICATION_PROTOCOL  TLS1_AD_NO_APPLICATION_PROTOCOL
  # 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_ERROR_WANT_ASYNC            9
  # define SSL_CTRL_SET_TMP_DH                     3
  # define SSL_CTRL_SET_TMP_ECDH                   4
  # define SSL_CTRL_SET_TMP_DH_CB                  6
  # 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_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_SET_TLSEXT_OPAQUE_PRF_INPUT    60 */
  /*# define SSL_CTRL_SET_TLSEXT_OPAQUE_PRF_INPUT_CB 61 */
  /*# define SSL_CTRL_SET_TLSEXT_OPAQUE_PRF_INPUT_CB_ARG 62 */
  # define SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB       63
  # 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
  # ifndef OPENSSL_NO_HEARTBEATS
  #  define SSL_CTRL_DTLS_EXT_SEND_HEARTBEAT               85
  #  define SSL_CTRL_GET_DTLS_EXT_HEARTBEAT_PENDING        86
  #  define SSL_CTRL_SET_DTLS_EXT_HEARTBEAT_NO_REQUESTS    87
  # endif
  # define DTLS_CTRL_GET_TIMEOUT           73
  # define DTLS_CTRL_HANDLE_TIMEOUT        74
  # define SSL_CTRL_GET_RI_SUPPORT                 76
  # define SSL_CTRL_CLEAR_MODE                     78
  # define SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB      79
  # 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_GET_CURVES                     90
  # define SSL_CTRL_SET_CURVES                     91
  # define SSL_CTRL_SET_CURVES_LIST                92
  # define SSL_CTRL_GET_SHARED_CURVE               93
  # define SSL_CTRL_SET_SIGALGS                    97
  # define SSL_CTRL_SET_SIGALGS_LIST               98
  # define SSL_CTRL_CERT_FLAGS                     99
  # define SSL_CTRL_CLEAR_CERT_FLAGS               100
  # define SSL_CTRL_SET_CLIENT_SIGALGS             101
  # define SSL_CTRL_SET_CLIENT_SIGALGS_LIST        102
  # define SSL_CTRL_GET_CLIENT_CERT_TYPES          103
  # define SSL_CTRL_SET_CLIENT_CERT_TYPES          104
  # define SSL_CTRL_BUILD_CERT_CHAIN               105
  # define SSL_CTRL_SET_VERIFY_CERT_STORE          106
  # define SSL_CTRL_SET_CHAIN_CERT_STORE           107
  # define SSL_CTRL_GET_PEER_SIGNATURE_NID         108
  # define SSL_CTRL_GET_SERVER_TMP_KEY             109
  # define SSL_CTRL_GET_RAW_CIPHERLIST             110
  # define SSL_CTRL_GET_EC_POINT_FORMATS           111
  # define SSL_CTRL_GET_CHAIN_CERTS                115
  # define SSL_CTRL_SELECT_CURRENT_CERT            116
  # define SSL_CTRL_SET_CURRENT_CERT               117
  # define SSL_CTRL_SET_DH_AUTO                    118
  # define DTLS_CTRL_SET_LINK_MTU                  120
  # define DTLS_CTRL_GET_LINK_MIN_MTU              121
  # define SSL_CTRL_GET_EXTMS_SUPPORT              122
  # define SSL_CTRL_SET_MIN_PROTO_VERSION          123
  # define SSL_CTRL_SET_MAX_PROTO_VERSION          124
  # define SSL_CTRL_SET_SPLIT_SEND_FRAGMENT        125
  # define SSL_CTRL_SET_MAX_PIPELINES              126
  # define SSL_CERT_SET_FIRST                      1
  # define SSL_CERT_SET_NEXT                       2
  # define SSL_CERT_SET_SERVER                     3
  # 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 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_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_set_dh_auto(s, onoff) \
          SSL_ctrl(s,SSL_CTRL_SET_DH_AUTO,onoff,NULL)
  # 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_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_CTX_set0_chain(ctx,sk) \
          SSL_CTX_ctrl(ctx,SSL_CTRL_CHAIN,0,(char *)sk)
  # define SSL_CTX_set1_chain(ctx,sk) \
          SSL_CTX_ctrl(ctx,SSL_CTRL_CHAIN,1,(char *)sk)
  # define SSL_CTX_add0_chain_cert(ctx,x509) \
          SSL_CTX_ctrl(ctx,SSL_CTRL_CHAIN_CERT,0,(char *)x509)
  # define SSL_CTX_add1_chain_cert(ctx,x509) \
          SSL_CTX_ctrl(ctx,SSL_CTRL_CHAIN_CERT,1,(char *)x509)
  # define SSL_CTX_get0_chain_certs(ctx,px509) \
          SSL_CTX_ctrl(ctx,SSL_CTRL_GET_CHAIN_CERTS,0,px509)
  # define SSL_CTX_clear_chain_certs(ctx) \
          SSL_CTX_set0_chain(ctx,NULL)
  # define SSL_CTX_build_cert_chain(ctx, flags) \
          SSL_CTX_ctrl(ctx,SSL_CTRL_BUILD_CERT_CHAIN, flags, NULL)
  # define SSL_CTX_select_current_cert(ctx,x509) \
          SSL_CTX_ctrl(ctx,SSL_CTRL_SELECT_CURRENT_CERT,0,(char *)x509)
  # define SSL_CTX_set_current_cert(ctx, op) \
          SSL_CTX_ctrl(ctx,SSL_CTRL_SET_CURRENT_CERT, op, NULL)
  # define SSL_CTX_set0_verify_cert_store(ctx,st) \
          SSL_CTX_ctrl(ctx,SSL_CTRL_SET_VERIFY_CERT_STORE,0,(char *)st)
  # define SSL_CTX_set1_verify_cert_store(ctx,st) \
          SSL_CTX_ctrl(ctx,SSL_CTRL_SET_VERIFY_CERT_STORE,1,(char *)st)
  # define SSL_CTX_set0_chain_cert_store(ctx,st) \
          SSL_CTX_ctrl(ctx,SSL_CTRL_SET_CHAIN_CERT_STORE,0,(char *)st)
  # define SSL_CTX_set1_chain_cert_store(ctx,st) \
          SSL_CTX_ctrl(ctx,SSL_CTRL_SET_CHAIN_CERT_STORE,1,(char *)st)
  # define SSL_set0_chain(ctx,sk) \
          SSL_ctrl(ctx,SSL_CTRL_CHAIN,0,(char *)sk)
  # define SSL_set1_chain(ctx,sk) \
          SSL_ctrl(ctx,SSL_CTRL_CHAIN,1,(char *)sk)
  # define SSL_add0_chain_cert(ctx,x509) \
          SSL_ctrl(ctx,SSL_CTRL_CHAIN_CERT,0,(char *)x509)
  # define SSL_add1_chain_cert(ctx,x509) \
          SSL_ctrl(ctx,SSL_CTRL_CHAIN_CERT,1,(char *)x509)
  # define SSL_get0_chain_certs(ctx,px509) \
          SSL_ctrl(ctx,SSL_CTRL_GET_CHAIN_CERTS,0,px509)
  # define SSL_clear_chain_certs(ctx) \
          SSL_set0_chain(ctx,NULL)
  # define SSL_build_cert_chain(s, flags) \
          SSL_ctrl(s,SSL_CTRL_BUILD_CERT_CHAIN, flags, NULL)
  # define SSL_select_current_cert(ctx,x509) \
          SSL_ctrl(ctx,SSL_CTRL_SELECT_CURRENT_CERT,0,(char *)x509)
  # define SSL_set_current_cert(ctx,op) \
          SSL_ctrl(ctx,SSL_CTRL_SET_CURRENT_CERT, op, NULL)
  # define SSL_set0_verify_cert_store(s,st) \
          SSL_ctrl(s,SSL_CTRL_SET_VERIFY_CERT_STORE,0,(char *)st)
  # define SSL_set1_verify_cert_store(s,st) \
          SSL_ctrl(s,SSL_CTRL_SET_VERIFY_CERT_STORE,1,(char *)st)
  # define SSL_set0_chain_cert_store(s,st) \
          SSL_ctrl(s,SSL_CTRL_SET_CHAIN_CERT_STORE,0,(char *)st)
  # define SSL_set1_chain_cert_store(s,st) \
          SSL_ctrl(s,SSL_CTRL_SET_CHAIN_CERT_STORE,1,(char *)st)
  # define SSL_get1_curves(ctx, s) \
          SSL_ctrl(ctx,SSL_CTRL_GET_CURVES,0,(char *)s)
  # define SSL_CTX_set1_curves(ctx, clist, clistlen) \
          SSL_CTX_ctrl(ctx,SSL_CTRL_SET_CURVES,clistlen,(char *)clist)
  # define SSL_CTX_set1_curves_list(ctx, s) \
          SSL_CTX_ctrl(ctx,SSL_CTRL_SET_CURVES_LIST,0,(char *)s)
  # define SSL_set1_curves(ctx, clist, clistlen) \
          SSL_ctrl(ctx,SSL_CTRL_SET_CURVES,clistlen,(char *)clist)
  # define SSL_set1_curves_list(ctx, s) \
          SSL_ctrl(ctx,SSL_CTRL_SET_CURVES_LIST,0,(char *)s)
  # define SSL_get_shared_curve(s, n) \
          SSL_ctrl(s,SSL_CTRL_GET_SHARED_CURVE,n,NULL)
  # define SSL_CTX_set1_sigalgs(ctx, slist, slistlen) \
          SSL_CTX_ctrl(ctx,SSL_CTRL_SET_SIGALGS,slistlen,(int *)slist)
  # define SSL_CTX_set1_sigalgs_list(ctx, s) \
          SSL_CTX_ctrl(ctx,SSL_CTRL_SET_SIGALGS_LIST,0,(char *)s)
  # define SSL_set1_sigalgs(ctx, slist, slistlen) \
          SSL_ctrl(ctx,SSL_CTRL_SET_SIGALGS,clistlen,(int *)slist)
  # define SSL_set1_sigalgs_list(ctx, s) \
          SSL_ctrl(ctx,SSL_CTRL_SET_SIGALGS_LIST,0,(char *)s)
  # define SSL_CTX_set1_client_sigalgs(ctx, slist, slistlen) \
          SSL_CTX_ctrl(ctx,SSL_CTRL_SET_CLIENT_SIGALGS,slistlen,(int *)slist)
  # define SSL_CTX_set1_client_sigalgs_list(ctx, s) \
          SSL_CTX_ctrl(ctx,SSL_CTRL_SET_CLIENT_SIGALGS_LIST,0,(char *)s)
  # define SSL_set1_client_sigalgs(ctx, slist, slistlen) \
          SSL_ctrl(ctx,SSL_CTRL_SET_CLIENT_SIGALGS,clistlen,(int *)slist)
  # define SSL_set1_client_sigalgs_list(ctx, s) \
          SSL_ctrl(ctx,SSL_CTRL_SET_CLIENT_SIGALGS_LIST,0,(char *)s)
  # define SSL_get0_certificate_types(s, clist) \
          SSL_ctrl(s, SSL_CTRL_GET_CLIENT_CERT_TYPES, 0, (char *)clist)
  # define SSL_CTX_set1_client_certificate_types(ctx, clist, clistlen) \
          SSL_CTX_ctrl(ctx,SSL_CTRL_SET_CLIENT_CERT_TYPES,clistlen,(char *)clist)
  # define SSL_set1_client_certificate_types(s, clist, clistlen) \
          SSL_ctrl(s,SSL_CTRL_SET_CLIENT_CERT_TYPES,clistlen,(char *)clist)
  # define SSL_get_peer_signature_nid(s, pn) \
          SSL_ctrl(s,SSL_CTRL_GET_PEER_SIGNATURE_NID,0,pn)
  # define SSL_get_server_tmp_key(s, pk) \
          SSL_ctrl(s,SSL_CTRL_GET_SERVER_TMP_KEY,0,pk)
  # define SSL_get0_raw_cipherlist(s, plst) \
          SSL_ctrl(s,SSL_CTRL_GET_RAW_CIPHERLIST,0,plst)
  # define SSL_get0_ec_point_formats(s, plst) \
          SSL_ctrl(s,SSL_CTRL_GET_EC_POINT_FORMATS,0,plst)
  #define SSL_CTX_set_min_proto_version(ctx, version) \
          SSL_CTX_ctrl(ctx, SSL_CTRL_SET_MIN_PROTO_VERSION, version, NULL)
  #define SSL_CTX_set_max_proto_version(ctx, version) \
          SSL_CTX_ctrl(ctx, SSL_CTRL_SET_MAX_PROTO_VERSION, version, NULL)
  #define SSL_set_min_proto_version(s, version) \
          SSL_ctrl(s, SSL_CTRL_SET_MIN_PROTO_VERSION, version, NULL)
  #define SSL_set_max_proto_version(s, version) \
          SSL_ctrl(s, SSL_CTRL_SET_MAX_PROTO_VERSION, version, NULL)
  
  
  __owur const BIO_METHOD *BIO_f_ssl(void);
  __owur BIO *BIO_new_ssl(SSL_CTX *ctx, int client);
  __owur BIO *BIO_new_ssl_connect(SSL_CTX *ctx);
  __owur BIO *BIO_new_buffer_ssl_connect(SSL_CTX *ctx);
  __owur int BIO_ssl_copy_session_id(BIO *to, BIO *from);
  void BIO_ssl_shutdown(BIO *ssl_bio);
  
  __owur int SSL_CTX_set_cipher_list(SSL_CTX *, const char *str);
  __owur SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth);
  void SSL_CTX_up_ref(SSL_CTX *ctx);
  void SSL_CTX_free(SSL_CTX *);
  __owur long SSL_CTX_set_timeout(SSL_CTX *ctx, long t);
  __owur long SSL_CTX_get_timeout(const SSL_CTX *ctx);
  __owur X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *);
  void SSL_CTX_set_cert_store(SSL_CTX *, X509_STORE *);
  __owur int SSL_want(const SSL *s);
  __owur int SSL_clear(SSL *s);
  
  void SSL_CTX_flush_sessions(SSL_CTX *ctx, long tm);
  
  __owur const SSL_CIPHER *SSL_get_current_cipher(const SSL *s);
  __owur int SSL_CIPHER_get_bits(const SSL_CIPHER *c, int *alg_bits);
  __owur const char *SSL_CIPHER_get_version(const SSL_CIPHER *c);
  __owur const char *SSL_CIPHER_get_name(const SSL_CIPHER *c);
  __owur uint32_t SSL_CIPHER_get_id(const SSL_CIPHER *c);
  __owur int SSL_CIPHER_get_kx_nid(const SSL_CIPHER *c);
  __owur int SSL_CIPHER_get_auth_nid(const SSL_CIPHER *c);
  __owur int SSL_CIPHER_is_aead(const SSL_CIPHER *c);
  
  __owur int SSL_get_fd(const SSL *s);
  __owur int SSL_get_rfd(const SSL *s);
  __owur int SSL_get_wfd(const SSL *s);
  __owur const char *SSL_get_cipher_list(const SSL *s, int n);
  __owur char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len);
  __owur int SSL_get_read_ahead(const SSL *s);
  __owur int SSL_pending(const SSL *s);
  __owur int SSL_has_pending(const SSL *s);
  # ifndef OPENSSL_NO_SOCK
  __owur int SSL_set_fd(SSL *s, int fd);
  __owur int SSL_set_rfd(SSL *s, int fd);
  __owur int SSL_set_wfd(SSL *s, int fd);
  # endif
  void SSL_set_rbio(SSL *s, BIO *rbio);
  void SSL_set_wbio(SSL *s, BIO *wbio);
  void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio);
  __owur BIO *SSL_get_rbio(const SSL *s);
  __owur BIO *SSL_get_wbio(const SSL *s);
  __owur int SSL_set_cipher_list(SSL *s, const char *str);
  void SSL_set_read_ahead(SSL *s, int yes);
  __owur int SSL_get_verify_mode(const SSL *s);
  __owur int SSL_get_verify_depth(const SSL *s);
  __owur 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);
  void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg);
  # ifndef OPENSSL_NO_RSA
  __owur int SSL_use_RSAPrivateKey(SSL *ssl, RSA *rsa);
  __owur int SSL_use_RSAPrivateKey_ASN1(SSL *ssl, const unsigned char *d, long len);
  # endif
  __owur int SSL_use_PrivateKey(SSL *ssl, EVP_PKEY *pkey);
  __owur int SSL_use_PrivateKey_ASN1(int pk, SSL *ssl, const unsigned char *d,
                              long len);
  __owur int SSL_use_certificate(SSL *ssl, X509 *x);
  __owur int SSL_use_certificate_ASN1(SSL *ssl, const unsigned char *d, int len);
  
  /* Set serverinfo data for the current active cert. */
  __owur int SSL_CTX_use_serverinfo(SSL_CTX *ctx, const unsigned char *serverinfo,
                             size_t serverinfo_length);
  __owur int SSL_CTX_use_serverinfo_file(SSL_CTX *ctx, const char *file);
  
  #ifndef OPENSSL_NO_RSA
  __owur int SSL_use_RSAPrivateKey_file(SSL *ssl, const char *file, int type);
  #endif
  
  __owur int SSL_use_PrivateKey_file(SSL *ssl, const char *file, int type);
  __owur int SSL_use_certificate_file(SSL *ssl, const char *file, int type);
  
  #ifndef OPENSSL_NO_RSA
  __owur int SSL_CTX_use_RSAPrivateKey_file(SSL_CTX *ctx, const char *file, int type);
  #endif
  __owur int SSL_CTX_use_PrivateKey_file(SSL_CTX *ctx, const char *file, int type);
  __owur int SSL_CTX_use_certificate_file(SSL_CTX *ctx, const char *file, int type);
  /* PEM type */
  __owur int SSL_CTX_use_certificate_chain_file(SSL_CTX *ctx, const char *file);
  __owur int SSL_use_certificate_chain_file(SSL *ssl, const char *file);
  __owur STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file);
  __owur 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);
  
  #if OPENSSL_API_COMPAT < 0x10100000L
  # define SSL_load_error_strings() \
      OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS \
                       | OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL)
  #endif
  
  __owur const char *SSL_state_string(const SSL *s);
  __owur const char *SSL_rstate_string(const SSL *s);
  __owur const char *SSL_state_string_long(const SSL *s);
  __owur const char *SSL_rstate_string_long(const SSL *s);
  __owur long SSL_SESSION_get_time(const SSL_SESSION *s);
  __owur long SSL_SESSION_set_time(SSL_SESSION *s, long t);
  __owur long SSL_SESSION_get_timeout(const SSL_SESSION *s);
  __owur long SSL_SESSION_set_timeout(SSL_SESSION *s, long t);
  __owur const char *SSL_SESSION_get0_hostname(const SSL_SESSION *s);
  __owur int SSL_SESSION_has_ticket(const SSL_SESSION *s);
  __owur unsigned long SSL_SESSION_get_ticket_lifetime_hint(const SSL_SESSION *s);
  void SSL_SESSION_get0_ticket(const SSL_SESSION *s, unsigned char **tick,
                              size_t *len);
  __owur int SSL_copy_session_id(SSL *to, const SSL *from);
  __owur X509 *SSL_SESSION_get0_peer(SSL_SESSION *s);
  __owur int SSL_SESSION_set1_id_context(SSL_SESSION *s, const unsigned char *sid_ctx,
                                  unsigned int sid_ctx_len);
  
  __owur SSL_SESSION *SSL_SESSION_new(void);
  const unsigned char *SSL_SESSION_get_id(const SSL_SESSION *s,
                                          unsigned int *len);
  __owur unsigned int SSL_SESSION_get_compress_id(const SSL_SESSION *s);
  # ifndef OPENSSL_NO_STDIO
  int SSL_SESSION_print_fp(FILE *fp, const SSL_SESSION *ses);
  # endif
  int SSL_SESSION_print(BIO *fp, const SSL_SESSION *ses);
  int SSL_SESSION_print_keylog(BIO *bp, const SSL_SESSION *x);
  int SSL_SESSION_up_ref(SSL_SESSION *ses);
  void SSL_SESSION_free(SSL_SESSION *ses);
  __owur int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp);
  __owur int SSL_set_session(SSL *to, SSL_SESSION *session);
  __owur int SSL_CTX_add_session(SSL_CTX *s, SSL_SESSION *c);
  int SSL_CTX_remove_session(SSL_CTX *, SSL_SESSION *c);
  __owur int SSL_CTX_set_generate_session_id(SSL_CTX *, GEN_SESSION_CB);
  __owur int SSL_set_generate_session_id(SSL *, GEN_SESSION_CB);
  __owur 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
  __owur X509 *SSL_get_peer_certificate(const SSL *s);
  # endif
  
  __owur STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s);
  
  __owur int SSL_CTX_get_verify_mode(const SSL_CTX *ctx);
  __owur int SSL_CTX_get_verify_depth(const SSL_CTX *ctx);
  __owur 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);
  void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg),
                           void *arg);
  # ifndef OPENSSL_NO_RSA
  __owur int SSL_CTX_use_RSAPrivateKey(SSL_CTX *ctx, RSA *rsa);
  __owur int SSL_CTX_use_RSAPrivateKey_ASN1(SSL_CTX *ctx, const unsigned char *d,
                                     long len);
  # endif
  __owur int SSL_CTX_use_PrivateKey(SSL_CTX *ctx, EVP_PKEY *pkey);
  __owur int SSL_CTX_use_PrivateKey_ASN1(int pk, SSL_CTX *ctx,
                                  const unsigned char *d, long len);
  __owur int SSL_CTX_use_certificate(SSL_CTX *ctx, X509 *x);
  __owur int SSL_CTX_use_certificate_ASN1(SSL_CTX *ctx, int len,
                                   const unsigned char *d);
  
  void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb);
  void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u);
  pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx);
  void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx);
  void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb);
  void SSL_set_default_passwd_cb_userdata(SSL *s, void *u);
  pem_password_cb *SSL_get_default_passwd_cb(SSL *s);
  void *SSL_get_default_passwd_cb_userdata(SSL *s);
  
  __owur int SSL_CTX_check_private_key(const SSL_CTX *ctx);
  __owur int SSL_check_private_key(const SSL *ctx);
  
  __owur int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
                                     unsigned int sid_ctx_len);
  
  SSL *SSL_new(SSL_CTX *ctx);
  void SSL_up_ref(SSL *s);
  __owur int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
                                 unsigned int sid_ctx_len);
  
  __owur int SSL_CTX_set_purpose(SSL_CTX *s, int purpose);
  __owur int SSL_set_purpose(SSL *s, int purpose);
  __owur int SSL_CTX_set_trust(SSL_CTX *s, int trust);
  __owur int SSL_set_trust(SSL *s, int trust);
  
  __owur int SSL_set1_host(SSL *s, const char *hostname);
  __owur int SSL_add1_host(SSL *s, const char *hostname);
  __owur const char *SSL_get0_peername(SSL *s);
  void SSL_set_hostflags(SSL *s, unsigned int flags);
  
  __owur int SSL_CTX_dane_enable(SSL_CTX *ctx);
  __owur int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md,
                                    uint8_t mtype, uint8_t ord);
  __owur int SSL_dane_enable(SSL *s, const char *basedomain);
  __owur int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector,
                               uint8_t mtype, unsigned char *data, size_t dlen);
  __owur int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki);
  __owur int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector,
                                uint8_t *mtype, unsigned const char **data,
                                size_t *dlen);
  /*
   * Bridge opacity barrier between libcrypt and libssl, also needed to support
   * offline testing in test/danetest.c
   */
  SSL_DANE *SSL_get0_dane(SSL *ssl);
  
  __owur int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm);
  __owur int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm);
  
  __owur X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx);
  __owur X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl);
  
  # ifndef OPENSSL_NO_SRP
  int SSL_CTX_set_srp_username(SSL_CTX *ctx, char *name);
  int SSL_CTX_set_srp_password(SSL_CTX *ctx, char *password);
  int SSL_CTX_set_srp_strength(SSL_CTX *ctx, int strength);
  int SSL_CTX_set_srp_client_pwd_callback(SSL_CTX *ctx,
                                          char *(*cb) (SSL *, void *));
  int SSL_CTX_set_srp_verify_param_callback(SSL_CTX *ctx,
                                            int (*cb) (SSL *, void *));
  int SSL_CTX_set_srp_username_callback(SSL_CTX *ctx,
                                        int (*cb) (SSL *, int *, void *));
  int SSL_CTX_set_srp_cb_arg(SSL_CTX *ctx, void *arg);
  
  int SSL_set_srp_server_param(SSL *s, const BIGNUM *N, const BIGNUM *g,
                               BIGNUM *sa, BIGNUM *v, char *info);
  int SSL_set_srp_server_param_pw(SSL *s, const char *user, const char *pass,
                                  const char *grp);
  
  __owur BIGNUM *SSL_get_srp_g(SSL *s);
  __owur BIGNUM *SSL_get_srp_N(SSL *s);
  
  __owur char *SSL_get_srp_username(SSL *s);
  __owur char *SSL_get_srp_userinfo(SSL *s);
  # endif
  
  void SSL_certs_clear(SSL *s);
  void SSL_free(SSL *ssl);
  __owur int SSL_waiting_for_async(SSL *s);
  __owur int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds);
  __owur int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd,
                                       size_t *numaddfds, OSSL_ASYNC_FD *delfd,
                                       size_t *numdelfds);
  __owur int SSL_accept(SSL *ssl);
  __owur int SSL_connect(SSL *ssl);
  __owur int SSL_read(SSL *ssl, void *buf, int num);
  __owur int SSL_peek(SSL *ssl, void *buf, int num);
  __owur 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));
  
  __owur int SSL_get_error(const SSL *s, int ret_code);
  __owur const char *SSL_get_version(const SSL *s);
  
  /* This sets the 'default' SSL version that SSL_new() will create */
  __owur int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth);
  
  # ifndef OPENSSL_NO_SSL3_METHOD
  DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *SSLv3_method(void)) /* SSLv3 */
  DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *SSLv3_server_method(void)) /* SSLv3 */
  DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *SSLv3_client_method(void)) /* SSLv3 */
  # endif
  
  #define SSLv23_method           TLS_method
  #define SSLv23_server_method    TLS_server_method
  #define SSLv23_client_method    TLS_client_method
  
  /* Negotiate highest available SSL/TLS version */
  __owur const SSL_METHOD *TLS_method(void);
  __owur const SSL_METHOD *TLS_server_method(void);
  __owur const SSL_METHOD *TLS_client_method(void);
  
  # ifndef OPENSSL_NO_TLS1_METHOD
  DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_method(void)) /* TLSv1.0 */
  DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_server_method(void)) /* TLSv1.0 */
  DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_client_method(void)) /* TLSv1.0 */
  # endif
  
  # ifndef OPENSSL_NO_TLS1_1_METHOD
  DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_1_method(void)) /* TLSv1.1 */
  DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_1_server_method(void)) /* TLSv1.1 */
  DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_1_client_method(void)) /* TLSv1.1 */
  # endif
  
  # ifndef OPENSSL_NO_TLS1_2_METHOD
  DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_2_method(void)) /* TLSv1.2 */
  DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_2_server_method(void)) /* TLSv1.2 */
  DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_2_client_method(void)) /* TLSv1.2 */
  # endif
  
  # ifndef OPENSSL_NO_DTLS1_METHOD
  DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *DTLSv1_method(void)) /* DTLSv1.0 */
  DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *DTLSv1_server_method(void)) /* DTLSv1.0 */
  DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *DTLSv1_client_method(void)) /* DTLSv1.0 */
  # endif
  
  # ifndef OPENSSL_NO_DTLS1_2_METHOD
  DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *DTLSv1_2_method(void)) /* DTLSv1.2 */
  DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *DTLSv1_2_server_method(void)) /* DTLSv1.2 */
  DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *DTLSv1_2_client_method(void)) /* DTLSv1.2 */
  #endif
  
  __owur const SSL_METHOD *DTLS_method(void); /* DTLS 1.0 and 1.2 */
  __owur const SSL_METHOD *DTLS_server_method(void); /* DTLS 1.0 and 1.2 */
  __owur const SSL_METHOD *DTLS_client_method(void); /* DTLS 1.0 and 1.2 */
  
  __owur STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s);
  __owur STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx);
  __owur STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s);
  __owur STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s);
  
  __owur int SSL_do_handshake(SSL *s);
  int SSL_renegotiate(SSL *s);
  __owur int SSL_renegotiate_abbreviated(SSL *s);
  __owur int SSL_renegotiate_pending(SSL *s);
  int SSL_shutdown(SSL *s);
  
  __owur const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx);
  __owur const SSL_METHOD *SSL_get_ssl_method(SSL *s);
  __owur int SSL_set_ssl_method(SSL *s, const SSL_METHOD *method);
  __owur const char *SSL_alert_type_string_long(int value);
  __owur const char *SSL_alert_type_string(int value);
  __owur const char *SSL_alert_desc_string_long(int value);
  __owur 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);
  __owur STACK_OF(X509_NAME) *SSL_get_client_CA_list(const SSL *s);
  __owur STACK_OF(X509_NAME) *SSL_CTX_get_client_CA_list(const SSL_CTX *s);
  __owur int SSL_add_client_CA(SSL *ssl, X509 *x);
  __owur 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);
  
  __owur long SSL_get_default_timeout(const SSL *s);
  
  #if OPENSSL_API_COMPAT < 0x10100000L
  # define SSL_library_init() OPENSSL_init_ssl(0, NULL)
  #endif
  
  __owur char *SSL_CIPHER_description(const SSL_CIPHER *, char *buf, int size);
  __owur STACK_OF(X509_NAME) *SSL_dup_CA_list(STACK_OF(X509_NAME) *sk);
  
  __owur SSL *SSL_dup(SSL *ssl);
  
  __owur X509 *SSL_get_certificate(const SSL *ssl);
  /*
   * EVP_PKEY
   */ struct evp_pkey_st *SSL_get_privatekey(const SSL *ssl);
  
  __owur X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx);
  __owur EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx);
  
  void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode);
  __owur int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx);
  void SSL_set_quiet_shutdown(SSL *ssl, int mode);
  __owur int SSL_get_quiet_shutdown(const SSL *ssl);
  void SSL_set_shutdown(SSL *ssl, int mode);
  __owur int SSL_get_shutdown(const SSL *ssl);
  __owur int SSL_version(const SSL *ssl);
  __owur int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx);
  __owur int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx);
  __owur int SSL_CTX_set_default_verify_file(SSL_CTX *ctx);
  __owur int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
                                    const char *CApath);
  # define SSL_get0_session SSL_get_session/* just peek at pointer */
  __owur SSL_SESSION *SSL_get_session(const SSL *ssl);
  __owur SSL_SESSION *SSL_get1_session(SSL *ssl); /* obtain a reference count */
  __owur 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);
  __owur OSSL_HANDSHAKE_STATE SSL_get_state(const SSL *ssl);
  
  void SSL_set_verify_result(SSL *ssl, long v);
  __owur long SSL_get_verify_result(const SSL *ssl);
  __owur STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s);
  
  __owur size_t SSL_get_client_random(const SSL *ssl, unsigned char *out,
                                      size_t outlen);
  __owur size_t SSL_get_server_random(const SSL *ssl, unsigned char *out,
                                      size_t outlen);
  __owur size_t SSL_SESSION_get_master_key(const SSL_SESSION *ssl,
                                           unsigned char *out, size_t outlen);
  
  #define SSL_get_ex_new_index(l, p, newf, dupf, freef) \
      CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, l, p, newf, dupf, freef)
  __owur int SSL_set_ex_data(SSL *ssl, int idx, void *data);
  void *SSL_get_ex_data(const SSL *ssl, int idx);
  #define SSL_SESSION_get_ex_new_index(l, p, newf, dupf, freef) \
      CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_SESSION, l, p, newf, dupf, freef)
  __owur 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);
  #define SSL_CTX_get_ex_new_index(l, p, newf, dupf, freef) \
      CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, l, p, newf, dupf, freef)
  __owur 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);
  
  __owur 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)
  # define SSL_CTX_set_split_send_fragment(ctx,m) \
          SSL_CTX_ctrl(ctx,SSL_CTRL_SET_SPLIT_SEND_FRAGMENT,m,NULL)
  # define SSL_set_split_send_fragment(ssl,m) \
          SSL_ctrl(ssl,SSL_CTRL_SET_SPLIT_SEND_FRAGMENT,m,NULL)
  # define SSL_CTX_set_max_pipelines(ctx,m) \
          SSL_CTX_ctrl(ctx,SSL_CTRL_SET_MAX_PIPELINES,m,NULL)
  # define SSL_set_max_pipelines(ssl,m) \
          SSL_ctrl(ssl,SSL_CTRL_SET_MAX_PIPELINES,m,NULL)
  
  void SSL_CTX_set_default_read_buffer_len(SSL_CTX *ctx, size_t len);
  void SSL_set_default_read_buffer_len(SSL *s, size_t len);
  
       /* NB: the keylength is only applicable when is_export is true */
  # ifndef OPENSSL_NO_DH
  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));
  # endif
  
  __owur const COMP_METHOD *SSL_get_current_compression(SSL *s);
  __owur const COMP_METHOD *SSL_get_current_expansion(SSL *s);
  __owur const char *SSL_COMP_get_name(const COMP_METHOD *comp);
  STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void);
  __owur STACK_OF(SSL_COMP) *SSL_COMP_set0_compression_methods(STACK_OF(SSL_COMP)
                                                        *meths);
  #if OPENSSL_API_COMPAT < 0x10100000L
  # define SSL_COMP_free_compression_methods() while(0) continue
  #endif
  __owur int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm);
  
  const SSL_CIPHER *SSL_CIPHER_find(SSL *ssl, const unsigned char *ptr);
  int SSL_CIPHER_get_cipher_nid(const SSL_CIPHER *c);
  int SSL_CIPHER_get_digest_nid(const SSL_CIPHER *c);
  
  /* TLS extensions functions */
  __owur int SSL_set_session_ticket_ext(SSL *s, void *ext_data, int ext_len);
  
  __owur int SSL_set_session_ticket_ext_cb(SSL *s, tls_session_ticket_ext_cb_fn cb,
                                    void *arg);
  
  /* Pre-shared secret session resumption functions */
  __owur int SSL_set_session_secret_cb(SSL *s,
                                tls_session_secret_cb_fn tls_session_secret_cb,
                                void *arg);
  
  void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
                                                  int (*cb) (SSL *ssl,
                                                             int
                                                             is_forward_secure));
  
  void SSL_set_not_resumable_session_callback(SSL *ssl,
                                              int (*cb) (SSL *ssl,
                                                         int
                                                         is_forward_secure));
  # if OPENSSL_API_COMPAT < 0x10100000L
  #  define SSL_cache_hit(s) SSL_session_reused(s)
  # endif
  
  __owur int SSL_session_reused(SSL *s);
  __owur int SSL_is_server(SSL *s);
  
  __owur __owur SSL_CONF_CTX *SSL_CONF_CTX_new(void);
  int SSL_CONF_CTX_finish(SSL_CONF_CTX *cctx);
  void SSL_CONF_CTX_free(SSL_CONF_CTX *cctx);
  unsigned int SSL_CONF_CTX_set_flags(SSL_CONF_CTX *cctx, unsigned int flags);
  __owur unsigned int SSL_CONF_CTX_clear_flags(SSL_CONF_CTX *cctx, unsigned int flags);
  __owur int SSL_CONF_CTX_set1_prefix(SSL_CONF_CTX *cctx, const char *pre);
  
  void SSL_CONF_CTX_set_ssl(SSL_CONF_CTX *cctx, SSL *ssl);
  void SSL_CONF_CTX_set_ssl_ctx(SSL_CONF_CTX *cctx, SSL_CTX *ctx);
  
  __owur int SSL_CONF_cmd(SSL_CONF_CTX *cctx, const char *cmd, const char *value);
  __owur int SSL_CONF_cmd_argv(SSL_CONF_CTX *cctx, int *pargc, char ***pargv);
  __owur int SSL_CONF_cmd_value_type(SSL_CONF_CTX *cctx, const char *cmd);
  
  void SSL_add_ssl_module(void);
  int SSL_config(SSL *s, const char *name);
  int SSL_CTX_config(SSL_CTX *ctx, const char *name);
  
  # ifndef OPENSSL_NO_SSL_TRACE
  void SSL_trace(int write_p, int version, int content_type,
                 const void *buf, size_t len, SSL *ssl, void *arg);
  __owur const char *SSL_CIPHER_standard_name(const SSL_CIPHER *c);
  # endif
  
  # ifndef OPENSSL_NO_SOCK
  int DTLSv1_listen(SSL *s, BIO_ADDR *client);
  # endif
  
  # ifndef OPENSSL_NO_CT
  
  /*
   * A callback for verifying that the received SCTs are sufficient.
   * Expected to return 1 if they are sufficient, otherwise 0.
   * May return a negative integer if an error occurs.
   * A connection should be aborted if the SCTs are deemed insufficient.
   */
  typedef int(*ssl_ct_validation_cb)(const CT_POLICY_EVAL_CTX *ctx,
                                     const STACK_OF(SCT) *scts, void *arg);
  
  /*
   * Sets a |callback| that is invoked upon receipt of ServerHelloDone to validate
   * the received SCTs.
   * If the callback returns a non-positive result, the connection is terminated.
   * Call this function before beginning a handshake.
   * If a NULL |callback| is provided, SCT validation is disabled.
   * |arg| is arbitrary userdata that will be passed to the callback whenever it
   * is invoked. Ownership of |arg| remains with the caller.
   *
   * NOTE: A side-effect of setting a CT callback is that an OCSP stapled response
   *       will be requested.
   */
  int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback,
                                     void *arg);
  int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx,
                                         ssl_ct_validation_cb callback,
                                         void *arg);
  #define SSL_disable_ct(s) \
          ((void) SSL_set_validation_callback((s), NULL, NULL))
  #define SSL_CTX_disable_ct(ctx) \
          ((void) SSL_CTX_set_validation_callback((ctx), NULL, NULL))
  
  /*
   * The validation type enumerates the available behaviours of the built-in SSL
   * CT validation callback selected via SSL_enable_ct() and SSL_CTX_enable_ct().
   * The underlying callback is a static function in libssl.
   */
  enum {
      SSL_CT_VALIDATION_PERMISSIVE = 0,
      SSL_CT_VALIDATION_STRICT
  };
  
  /*
   * Enable CT by setting up a callback that implements one of the built-in
   * validation variants.  The SSL_CT_VALIDATION_PERMISSIVE variant always
   * continues the handshake, the application can make appropriate decisions at
   * handshake completion.  The SSL_CT_VALIDATION_STRICT variant requires at
   * least one valid SCT, or else handshake termination will be requested.  The
   * handshake may continue anyway if SSL_VERIFY_NONE is in effect.
   */
  int SSL_enable_ct(SSL *s, int validation_mode);
  int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode);
  
  /*
   * Report whether a non-NULL callback is enabled.
   */
  int SSL_ct_is_enabled(const SSL *s);
  int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx);
  
  /* Gets the SCTs received from a connection */
  const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s);
  
  /*
   * Loads the CT log list from the default location.
   * If a CTLOG_STORE has previously been set using SSL_CTX_set_ctlog_store,
   * the log information loaded from this file will be appended to the
   * CTLOG_STORE.
   * Returns 1 on success, 0 otherwise.
   */
  int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx);
  
  /*
   * Loads the CT log list from the specified file path.
   * If a CTLOG_STORE has previously been set using SSL_CTX_set_ctlog_store,
   * the log information loaded from this file will be appended to the
   * CTLOG_STORE.
   * Returns 1 on success, 0 otherwise.
   */
  int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path);
  
  /*
   * Sets the CT log list used by all SSL connections created from this SSL_CTX.
   * Ownership of the CTLOG_STORE is transferred to the SSL_CTX.
   */
  void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE *logs);
  
  /*
   * Gets the CT log list used by all SSL connections created from this SSL_CTX.
   * This will be NULL unless one of the following functions has been called:
   * - SSL_CTX_set_default_ctlog_list_file
   * - SSL_CTX_set_ctlog_list_file
   * - SSL_CTX_set_ctlog_store
   */
  const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx);
  
  # endif /* OPENSSL_NO_CT */
  
  /* What the "other" parameter contains in security callback */
  /* Mask for type */
  # define SSL_SECOP_OTHER_TYPE    0xffff0000
  # define SSL_SECOP_OTHER_NONE    0
  # define SSL_SECOP_OTHER_CIPHER  (1 << 16)
  # define SSL_SECOP_OTHER_CURVE   (2 << 16)
  # define SSL_SECOP_OTHER_DH      (3 << 16)
  # define SSL_SECOP_OTHER_PKEY    (4 << 16)
  # define SSL_SECOP_OTHER_SIGALG  (5 << 16)
  # define SSL_SECOP_OTHER_CERT    (6 << 16)
  
  /* Indicated operation refers to peer key or certificate */
  # define SSL_SECOP_PEER          0x1000
  
  /* Values for "op" parameter in security callback */
  
  /* Called to filter ciphers */
  /* Ciphers client supports */
  # define SSL_SECOP_CIPHER_SUPPORTED      (1 | SSL_SECOP_OTHER_CIPHER)
  /* Cipher shared by client/server */
  # define SSL_SECOP_CIPHER_SHARED         (2 | SSL_SECOP_OTHER_CIPHER)
  /* Sanity check of cipher server selects */
  # define SSL_SECOP_CIPHER_CHECK          (3 | SSL_SECOP_OTHER_CIPHER)
  /* Curves supported by client */
  # define SSL_SECOP_CURVE_SUPPORTED       (4 | SSL_SECOP_OTHER_CURVE)
  /* Curves shared by client/server */
  # define SSL_SECOP_CURVE_SHARED          (5 | SSL_SECOP_OTHER_CURVE)
  /* Sanity check of curve server selects */
  # define SSL_SECOP_CURVE_CHECK           (6 | SSL_SECOP_OTHER_CURVE)
  /* Temporary DH key */
  # define SSL_SECOP_TMP_DH                (7 | SSL_SECOP_OTHER_PKEY)
  /* SSL/TLS version */
  # define SSL_SECOP_VERSION               (9 | SSL_SECOP_OTHER_NONE)
  /* Session tickets */
  # define SSL_SECOP_TICKET                (10 | SSL_SECOP_OTHER_NONE)
  /* Supported signature algorithms sent to peer */
  # define SSL_SECOP_SIGALG_SUPPORTED      (11 | SSL_SECOP_OTHER_SIGALG)
  /* Shared signature algorithm */
  # define SSL_SECOP_SIGALG_SHARED         (12 | SSL_SECOP_OTHER_SIGALG)
  /* Sanity check signature algorithm allowed */
  # define SSL_SECOP_SIGALG_CHECK          (13 | SSL_SECOP_OTHER_SIGALG)
  /* Used to get mask of supported public key signature algorithms */
  # define SSL_SECOP_SIGALG_MASK           (14 | SSL_SECOP_OTHER_SIGALG)
  /* Use to see if compression is allowed */
  # define SSL_SECOP_COMPRESSION           (15 | SSL_SECOP_OTHER_NONE)
  /* EE key in certificate */
  # define SSL_SECOP_EE_KEY                (16 | SSL_SECOP_OTHER_CERT)
  /* CA key in certificate */
  # define SSL_SECOP_CA_KEY                (17 | SSL_SECOP_OTHER_CERT)
  /* CA digest algorithm in certificate */
  # define SSL_SECOP_CA_MD                 (18 | SSL_SECOP_OTHER_CERT)
  /* Peer EE key in certificate */
  # define SSL_SECOP_PEER_EE_KEY           (SSL_SECOP_EE_KEY | SSL_SECOP_PEER)
  /* Peer CA key in certificate */
  # define SSL_SECOP_PEER_CA_KEY           (SSL_SECOP_CA_KEY | SSL_SECOP_PEER)
  /* Peer CA digest algorithm in certificate */
  # define SSL_SECOP_PEER_CA_MD            (SSL_SECOP_CA_MD | SSL_SECOP_PEER)
  
  void SSL_set_security_level(SSL *s, int level);
  __owur int SSL_get_security_level(const SSL *s);
  void SSL_set_security_callback(SSL *s,
                                 int (*cb) (const SSL *s, const SSL_CTX *ctx, int op,
                                            int bits, int nid, void *other,
                                            void *ex));
  int (*SSL_get_security_callback(const SSL *s)) (const SSL *s, const SSL_CTX *ctx, int op,
                                                  int bits, int nid,
                                                  void *other, void *ex);
  void SSL_set0_security_ex_data(SSL *s, void *ex);
  __owur void *SSL_get0_security_ex_data(const SSL *s);
  
  void SSL_CTX_set_security_level(SSL_CTX *ctx, int level);
  __owur int SSL_CTX_get_security_level(const SSL_CTX *ctx);
  void SSL_CTX_set_security_callback(SSL_CTX *ctx,
                                     int (*cb) (const SSL *s, const SSL_CTX *ctx, int op,
                                                int bits, int nid, void *other,
                                                void *ex));
  int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s,
                                                            const SSL_CTX *ctx,
                                                            int op, int bits,
                                                            int nid,
                                                            void *other,
                                                            void *ex);
  void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex);
  __owur void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx);
  
  /* OPENSSL_INIT flag 0x010000 reserved for internal use */
  #define OPENSSL_INIT_NO_LOAD_SSL_STRINGS    0x00100000L
  #define OPENSSL_INIT_LOAD_SSL_STRINGS       0x00200000L
  
  #define OPENSSL_INIT_SSL_DEFAULT \
          (OPENSSL_INIT_LOAD_SSL_STRINGS | OPENSSL_INIT_LOAD_CRYPTO_STRINGS)
  
  int OPENSSL_init_ssl(uint64_t opts, const OPENSSL_INIT_SETTINGS *settings);
  
  # ifndef OPENSSL_NO_UNIT_TEST
  __owur const struct openssl_ssl_test_functions *SSL_test_functions(void);
  # endif
  
  extern const char SSL_version_str[];
  
  /* 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_CHECK_SUITEB_CIPHER_LIST                   331
  # define SSL_F_CT_MOVE_SCTS                               345
  # define SSL_F_CT_STRICT                                  349
  # define SSL_F_D2I_SSL_SESSION                            103
  # define SSL_F_DANE_CTX_ENABLE                            347
  # define SSL_F_DANE_MTYPE_SET                             393
  # define SSL_F_DANE_TLSA_ADD                              394
  # define SSL_F_DO_DTLS1_WRITE                             245
  # define SSL_F_DO_SSL3_WRITE                              104
  # define SSL_F_DTLS1_ADD_CERT_TO_BUF                      295
  # define SSL_F_DTLS1_BUFFER_RECORD                        247
  # define SSL_F_DTLS1_CHECK_TIMEOUT_NUM                    318
  # define SSL_F_DTLS1_ENC                                  250
  # define SSL_F_DTLS1_GET_HELLO_VERIFY                     251
  # define SSL_F_DTLS1_GET_MESSAGE_FRAGMENT                 253
  # define SSL_F_DTLS1_HANDLE_TIMEOUT                       297
  # define SSL_F_DTLS1_HEARTBEAT                            305
  # 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_HELLO_VERIFY_REQUEST            264
  # define SSL_F_DTLS1_WRITE_APP_DATA_BYTES                 268
  # define SSL_F_DTLSV1_LISTEN                              350
  # define SSL_F_DTLS_CONSTRUCT_CHANGE_CIPHER_SPEC          371
  # define SSL_F_DTLS_CONSTRUCT_HELLO_VERIFY_REQUEST        385
  # define SSL_F_DTLS_GET_REASSEMBLED_MESSAGE               370
  # define SSL_F_DTLS_PROCESS_HELLO_VERIFY                  386
  # define SSL_F_OPENSSL_INIT_SSL                           342
  # define SSL_F_READ_STATE_MACHINE                         352
  # 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_FINISHED                        339
  # 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_FINAL_FINISH_MAC                      285
  # define SSL_F_SSL3_GENERATE_KEY_BLOCK                    238
  # define SSL_F_SSL3_GENERATE_MASTER_SECRET                388
  # define SSL_F_SSL3_GET_RECORD                            143
  # 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_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_ACCEPT                                 390
  # define SSL_F_SSL_ADD_CERT_CHAIN                         316
  # define SSL_F_SSL_ADD_CERT_TO_BUF                        319
  # 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_BUILD_CERT_CHAIN                       332
  # define SSL_F_SSL_BYTES_TO_CIPHER_LIST                   161
  # define SSL_F_SSL_CERT_ADD0_CHAIN_CERT                   346
  # define SSL_F_SSL_CERT_DUP                               221
  # define SSL_F_SSL_CERT_INSTANTIATE                       214
  # define SSL_F_SSL_CERT_NEW                               162
  # define SSL_F_SSL_CERT_SET0_CHAIN                        340
  # 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_CONF_CMD                               334
  # 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_ENABLE_CT                          398
  # define SSL_F_SSL_CTX_MAKE_PROFILES                      309
  # define SSL_F_SSL_CTX_NEW                                169
  # define SSL_F_SSL_CTX_SET_ALPN_PROTOS                    343
  # 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_CT_VALIDATION_CALLBACK         396
  # 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_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_CTX_USE_SERVERINFO                     336
  # define SSL_F_SSL_CTX_USE_SERVERINFO_FILE                337
  # define SSL_F_SSL_DANE_ENABLE                            395
  # define SSL_F_SSL_DO_CONFIG                              391
  # define SSL_F_SSL_DO_HANDSHAKE                           180
  # define SSL_F_SSL_ENABLE_CT                              402
  # define SSL_F_SSL_GET0_PEER_SCTS                         397
  # define SSL_F_SSL_GET_NEW_SESSION                        181
  # define SSL_F_SSL_GET_PREV_SESSION                       217
  # define SSL_F_SSL_GET_SERVER_CERT_INDEX                  322
  # 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_MODULE_INIT                            392
  # 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_SCAN_CLIENTHELLO_TLSEXT                320
  # define SSL_F_SSL_SCAN_SERVERHELLO_TLSEXT                321
  # define SSL_F_SSL_SESSION_DUP                            348
  # 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_SET_ALPN_PROTOS                        344
  # define SSL_F_SSL_SET_CERT                               191
  # define SSL_F_SSL_SET_CIPHER_LIST                        271
  # define SSL_F_SSL_SET_CT_VALIDATION_CALLBACK             399
  # 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_START_ASYNC_JOB                        389
  # 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_VALIDATE_CT                            400
  # define SSL_F_SSL_VERIFY_CERT_CHAIN                      207
  # define SSL_F_SSL_WRITE                                  208
  # define SSL_F_STATE_MACHINE                              353
  # define SSL_F_TLS12_CHECK_PEER_SIGALG                    333
  # define SSL_F_TLS1_CHANGE_CIPHER_STATE                   209
  # define SSL_F_TLS1_CHECK_DUPLICATE_EXTENSIONS            341
  # define SSL_F_TLS1_CHECK_SERVERHELLO_TLSEXT              274
  # define SSL_F_TLS1_ENC                                   401
  # define SSL_F_TLS1_EXPORT_KEYING_MATERIAL                314
  # define SSL_F_TLS1_GET_CURVELIST                         338
  # 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_TLS1_SET_SERVER_SIGALGS                    335
  # define SSL_F_TLS_CLIENT_KEY_EXCHANGE_POST_WORK          354
  # define SSL_F_TLS_CONSTRUCT_CERTIFICATE_REQUEST          372
  # define SSL_F_TLS_CONSTRUCT_CLIENT_CERTIFICATE           355
  # define SSL_F_TLS_CONSTRUCT_CLIENT_HELLO                 356
  # define SSL_F_TLS_CONSTRUCT_CLIENT_KEY_EXCHANGE          357
  # define SSL_F_TLS_CONSTRUCT_CLIENT_VERIFY                358
  # define SSL_F_TLS_CONSTRUCT_FINISHED                     359
  # define SSL_F_TLS_CONSTRUCT_HELLO_REQUEST                373
  # define SSL_F_TLS_CONSTRUCT_SERVER_CERTIFICATE           374
  # define SSL_F_TLS_CONSTRUCT_SERVER_DONE                  375
  # define SSL_F_TLS_CONSTRUCT_SERVER_HELLO                 376
  # define SSL_F_TLS_CONSTRUCT_SERVER_KEY_EXCHANGE          377
  # define SSL_F_TLS_GET_MESSAGE_BODY                       351
  # define SSL_F_TLS_GET_MESSAGE_HEADER                     387
  # define SSL_F_TLS_POST_PROCESS_CLIENT_HELLO              378
  # define SSL_F_TLS_POST_PROCESS_CLIENT_KEY_EXCHANGE       384
  # define SSL_F_TLS_PREPARE_CLIENT_CERTIFICATE             360
  # define SSL_F_TLS_PROCESS_CERTIFICATE_REQUEST            361
  # define SSL_F_TLS_PROCESS_CERT_STATUS                    362
  # define SSL_F_TLS_PROCESS_CERT_VERIFY                    379
  # define SSL_F_TLS_PROCESS_CHANGE_CIPHER_SPEC             363
  # define SSL_F_TLS_PROCESS_CLIENT_CERTIFICATE             380
  # define SSL_F_TLS_PROCESS_CLIENT_HELLO                   381
  # define SSL_F_TLS_PROCESS_CLIENT_KEY_EXCHANGE            382
  # define SSL_F_TLS_PROCESS_FINISHED                       364
  # define SSL_F_TLS_PROCESS_KEY_EXCHANGE                   365
  # define SSL_F_TLS_PROCESS_NEW_SESSION_TICKET             366
  # define SSL_F_TLS_PROCESS_NEXT_PROTO                     383
  # define SSL_F_TLS_PROCESS_SERVER_CERTIFICATE             367
  # define SSL_F_TLS_PROCESS_SERVER_DONE                    368
  # define SSL_F_TLS_PROCESS_SERVER_HELLO                   369
  # define SSL_F_USE_CERTIFICATE_CHAIN_FILE                 220
  
  /* Reason codes. */
  # define SSL_R_APP_DATA_IN_HANDSHAKE                      100
  # define SSL_R_ATTEMPT_TO_REUSE_SESSION_IN_DIFFERENT_CONTEXT 272
  # define SSL_R_AT_LEAST_TLS_1_0_NEEDED_IN_FIPS_MODE       143
  # define SSL_R_AT_LEAST_TLS_1_2_NEEDED_IN_SUITEB_MODE     158
  # define SSL_R_BAD_ALERT_RECORD                           101
  # define SSL_R_BAD_CHANGE_CIPHER_SPEC                     103
  # define SSL_R_BAD_DATA                                   390
  # 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_G_VALUE                             375
  # define SSL_R_BAD_DH_PUB_KEY_LENGTH                      109
  # define SSL_R_BAD_DH_PUB_KEY_VALUE                       393
  # define SSL_R_BAD_DH_P_LENGTH                            110
  # define SSL_R_BAD_DH_P_VALUE                             395
  # define SSL_R_BAD_DH_VALUE                               102
  # 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_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_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_PARAMETERS                         371
  # 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_VALUE                                  384
  # 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_CA_KEY_TOO_SMALL                           397
  # define SSL_R_CA_MD_TOO_WEAK                             398
  # define SSL_R_CCS_RECEIVED_EARLY                         133
  # define SSL_R_CERTIFICATE_VERIFY_FAILED                  134
  # define SSL_R_CERT_CB_ERROR                              377
  # define SSL_R_CERT_LENGTH_MISMATCH                       135
  # define SSL_R_CIPHER_CODE_WRONG_LENGTH                   137
  # define SSL_R_CIPHER_OR_HASH_UNAVAILABLE                 138
  # 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_TYPE_NOT_SET                    144
  # define SSL_R_CONTEXT_NOT_DANE_ENABLED                   167
  # define SSL_R_COOKIE_GEN_CALLBACK_FAILURE                400
  # define SSL_R_COOKIE_MISMATCH                            308
  # define SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED       206
  # define SSL_R_DANE_ALREADY_ENABLED                       172
  # define SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL            173
  # define SSL_R_DANE_NOT_ENABLED                           175
  # define SSL_R_DANE_TLSA_BAD_CERTIFICATE                  180
  # define SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE            184
  # define SSL_R_DANE_TLSA_BAD_DATA_LENGTH                  189
  # define SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH                192
  # define SSL_R_DANE_TLSA_BAD_MATCHING_TYPE                200
  # define SSL_R_DANE_TLSA_BAD_PUBLIC_KEY                   201
  # define SSL_R_DANE_TLSA_BAD_SELECTOR                     202
  # define SSL_R_DANE_TLSA_NULL_DATA                        203
  # 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_KEY_TOO_SMALL                           394
  # 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_ECDH_REQUIRED_FOR_SUITEB_MODE              374
  # define SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER               310
  # define SSL_R_EE_KEY_TOO_SMALL                           399
  # define SSL_R_EMPTY_SRTP_PROTECTION_PROFILE_LIST         354
  # define SSL_R_ENCRYPTED_LENGTH_TOO_LONG                  150
  # define SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST              151
  # define SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN             204
  # define SSL_R_EXCESSIVE_MESSAGE_SIZE                     152
  # define SSL_R_EXTRA_DATA_IN_MESSAGE                      153
  # define SSL_R_FAILED_TO_INIT_ASYNC                       405
  # define SSL_R_FRAGMENTED_CLIENT_HELLO                    401
  # 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_SUITEB_DIGEST                      380
  # define SSL_R_INAPPROPRIATE_FALLBACK                     373
  # define SSL_R_INCONSISTENT_COMPRESSION                   340
  # define SSL_R_INCONSISTENT_EXTMS                         104
  # define SSL_R_INVALID_COMMAND                            280
  # define SSL_R_INVALID_COMPRESSION_ALGORITHM              341
  # define SSL_R_INVALID_CONFIGURATION_NAME                 113
  # define SSL_R_INVALID_CT_VALIDATION_TYPE                 212
  # define SSL_R_INVALID_NULL_CMD_NAME                      385
  # define SSL_R_INVALID_PURPOSE                            278
  # define SSL_R_INVALID_SEQUENCE_NUMBER                    402
  # define SSL_R_INVALID_SERVERINFO_DATA                    388
  # 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_LENGTH_MISMATCH                            159
  # define SSL_R_LENGTH_TOO_LONG                            404
  # define SSL_R_LENGTH_TOO_SHORT                           160
  # define SSL_R_LIBRARY_BUG                                274
  # define SSL_R_LIBRARY_HAS_NO_CIPHERS                     161
  # 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_ECDH_CERT                          382
  # define SSL_R_MISSING_ECDSA_SIGNING_CERT                 381
  # 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_VERIFY_MESSAGE                     174
  # define SSL_R_MULTIPLE_SGC_RESTARTS                      346
  # 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_CIPHERS_AVAILABLE                       181
  # define SSL_R_NO_CIPHERS_PASSED                          182
  # define SSL_R_NO_CIPHERS_SPECIFIED                       183
  # 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_PEM_EXTENSIONS                          389
  # define SSL_R_NO_PRIVATE_KEY_ASSIGNED                    190
  # define SSL_R_NO_PROTOCOLS_AVAILABLE                     191
  # define SSL_R_NO_RENEGOTIATION                           339
  # define SSL_R_NO_REQUIRED_DIGEST                         324
  # define SSL_R_NO_SHARED_CIPHER                           193
  # define SSL_R_NO_SHARED_SIGATURE_ALGORITHMS              376
  # define SSL_R_NO_SRTP_PROFILES                           359
  # define SSL_R_NO_VALID_SCTS                              216
  # define SSL_R_NO_VERIFY_CALLBACK                         194
  # define SSL_R_NO_VERIFY_COOKIE_CALLBACK                  403
  # 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_OPAQUE_PRF_INPUT_TOO_LONG                  327
  # 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_PEM_NAME_BAD_PREFIX                        391
  # define SSL_R_PEM_NAME_TOO_SHORT                         392
  # define SSL_R_PIPELINE_FAILURE                           406
  # define SSL_R_PRE_MAC_LENGTH_TOO_LONG                    205
  # 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_READ_BIO_NOT_SET                           211
  # define SSL_R_READ_TIMEOUT_EXPIRED                       312
  # 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_SCSV_RECEIVED_WHEN_RENEGOTIATING           345
  # define SSL_R_SCT_VERIFICATION_FAILED                    208
  # define SSL_R_SERVERHELLO_TLSEXT                         275
  # define SSL_R_SESSION_ID_CONTEXT_UNINITIALIZED           277
  # define SSL_R_SET_FAILED                                 209
  # define SSL_R_SHUTDOWN_WHILE_IN_INIT                     407
  # 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_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_SSL_COMMAND_SECTION_EMPTY                  117
  # define SSL_R_SSL_COMMAND_SECTION_NOT_FOUND              125
  # 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_NEGATIVE_LENGTH                        372
  # define SSL_R_SSL_SECTION_EMPTY                          126
  # define SSL_R_SSL_SECTION_NOT_FOUND                      136
  # 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_VERSION_MISMATCH               210
  # 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_UNABLE_TO_DECODE_DH_CERTS                  236
  # define SSL_R_UNABLE_TO_DECODE_ECDH_CERTS                313
  # 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_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_CMD_NAME                           386
  # define SSL_R_UNKNOWN_COMMAND                            139
  # 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_VERSION_TOO_HIGH                           166
  # define SSL_R_VERSION_TOO_LOW                            396
  # define SSL_R_WRONG_CERTIFICATE_TYPE                     383
  # define SSL_R_WRONG_CIPHER_RETURNED                      261
  # define SSL_R_WRONG_CURVE                                378
  # define SSL_R_WRONG_MESSAGE_TYPE                         262
  # 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
  
  #ifdef  __cplusplus
  }
  #endif
  #endif
  