Logo Search packages:      
Sourcecode: openssl version File versions

ssl_lib.c

Go to the documentation of this file.
/*! \file ssl/ssl_lib.c
 *  \brief Version independent SSL functions.
 */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 * 
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 * 
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from 
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 * 
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * 
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */
/* ====================================================================
 * Copyright (c) 1998-2001 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer. 
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    openssl-core@openssl.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com).
 *
 */


#ifdef REF_CHECK
#  include <assert.h>
#endif
#include <stdio.h>
#include "ssl_locl.h"
#include "kssl_lcl.h"
#include <openssl/objects.h>
#include <openssl/lhash.h>
#include <openssl/x509v3.h>
#include <openssl/fips.h>

const char *SSL_version_str=OPENSSL_VERSION_TEXT;

OPENSSL_GLOBAL SSL3_ENC_METHOD ssl3_undef_enc_method={
      /* evil casts, but these functions are only called if there's a library bug */
      (int (*)(SSL *,int))ssl_undefined_function,
      (int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
      ssl_undefined_function,
      (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function,
      (int (*)(SSL*, int))ssl_undefined_function,
      (int (*)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char*, int, unsigned char *))ssl_undefined_function
      };

int SSL_clear(SSL *s)
      {

      if (s->method == NULL)
            {
            SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED);
            return(0);
            }

      if (ssl_clear_bad_session(s))
            {
            SSL_SESSION_free(s->session);
            s->session=NULL;
            }

      s->error=0;
      s->hit=0;
      s->shutdown=0;

#if 0 /* Disabled since version 1.10 of this file (early return not
       * needed because SSL_clear is not called when doing renegotiation) */
      /* This is set if we are doing dynamic renegotiation so keep
       * the old cipher.  It is sort of a SSL_clear_lite :-) */
      if (s->new_session) return(1);
#else
      if (s->new_session)
            {
            SSLerr(SSL_F_SSL_CLEAR,ERR_R_INTERNAL_ERROR);
            return 0;
            }
#endif

      s->type=0;

      s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);

      s->version=s->method->version;
      s->client_version=s->version;
      s->rwstate=SSL_NOTHING;
      s->rstate=SSL_ST_READ_HEADER;
#if 0
      s->read_ahead=s->ctx->read_ahead;
#endif

      if (s->init_buf != NULL)
            {
            BUF_MEM_free(s->init_buf);
            s->init_buf=NULL;
            }

      ssl_clear_cipher_ctx(s);

      s->first_packet=0;

#if 1
      /* Check to see if we were changed into a different method, if
       * so, revert back if we are not doing session-id reuse. */
      if (!s->in_handshake && (s->session == NULL) && (s->method != s->ctx->method))
            {
            s->method->ssl_free(s);
            s->method=s->ctx->method;
            if (!s->method->ssl_new(s))
                  return(0);
            }
      else
#endif
            s->method->ssl_clear(s);
      return(1);
      }

/** Used to change an SSL_CTXs default SSL method type */
00209 int SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth)
      {
      STACK_OF(SSL_CIPHER) *sk;

      ctx->method=meth;

      sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
            &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST);
      if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
            {
            SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
            return(0);
            }
      return(1);
      }

SSL *SSL_new(SSL_CTX *ctx)
      {
      SSL *s;

      if (ctx == NULL)
            {
            SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
            return(NULL);
            }
      if (ctx->method == NULL)
            {
            SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
            return(NULL);
            }

      s=(SSL *)OPENSSL_malloc(sizeof(SSL));
      if (s == NULL) goto err;
      memset(s,0,sizeof(SSL));

#ifndef     OPENSSL_NO_KRB5
      s->kssl_ctx = kssl_ctx_new();
#endif      /* OPENSSL_NO_KRB5 */

      s->options=ctx->options;
      s->mode=ctx->mode;
      s->max_cert_list=ctx->max_cert_list;

      if (ctx->cert != NULL)
            {
            /* Earlier library versions used to copy the pointer to
             * the CERT, not its contents; only when setting new
             * parameters for the per-SSL copy, ssl_cert_new would be
             * called (and the direct reference to the per-SSL_CTX
             * settings would be lost, but those still were indirectly
             * accessed for various purposes, and for that reason they
             * used to be known as s->ctx->default_cert).
             * Now we don't look at the SSL_CTX's CERT after having
             * duplicated it once. */

            s->cert = ssl_cert_dup(ctx->cert);
            if (s->cert == NULL)
                  goto err;
            }
      else
            s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */

      s->read_ahead=ctx->read_ahead;
      s->msg_callback=ctx->msg_callback;
      s->msg_callback_arg=ctx->msg_callback_arg;
      s->verify_mode=ctx->verify_mode;
      s->verify_depth=ctx->verify_depth;
      s->sid_ctx_length=ctx->sid_ctx_length;
      OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
      memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
      s->verify_callback=ctx->default_verify_callback;
      s->generate_session_id=ctx->generate_session_id;
      s->purpose = ctx->purpose;
      s->trust = ctx->trust;
      s->quiet_shutdown=ctx->quiet_shutdown;

      CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
      s->ctx=ctx;

      s->verify_result=X509_V_OK;

      s->method=ctx->method;

      if (!s->method->ssl_new(s))
            goto err;

      s->references=1;
      s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;

      SSL_clear(s);

      CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);

      return(s);
err:
      if (s != NULL)
            {
            if (s->cert != NULL)
                  ssl_cert_free(s->cert);
            if (s->ctx != NULL)
                  SSL_CTX_free(s->ctx); /* decrement reference count */
            OPENSSL_free(s);
            }
      SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
      return(NULL);
      }

int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
                           unsigned int sid_ctx_len)
    {
    if(sid_ctx_len > sizeof ctx->sid_ctx)
      {
      SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
      return 0;
      }
    ctx->sid_ctx_length=sid_ctx_len;
    memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);

    return 1;
    }

int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
                         unsigned int sid_ctx_len)
    {
    if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
      {
      SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
      return 0;
      }
    ssl->sid_ctx_length=sid_ctx_len;
    memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);

    return 1;
    }

int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
      {
      CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
      ctx->generate_session_id = cb;
      CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
      return 1;
      }

int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
      {
      CRYPTO_w_lock(CRYPTO_LOCK_SSL);
      ssl->generate_session_id = cb;
      CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
      return 1;
      }

int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
                        unsigned int id_len)
      {
      /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
       * we can "construct" a session to give us the desired check - ie. to
       * find if there's a session in the hash table that would conflict with
       * any new session built out of this id/id_len and the ssl_version in
       * use by this SSL. */
      SSL_SESSION r, *p;

      if(id_len > sizeof r.session_id)
            return 0;

      r.ssl_version = ssl->version;
      r.session_id_length = id_len;
      memcpy(r.session_id, id, id_len);
      /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
       * callback is calling us to check the uniqueness of a shorter ID, it
       * must be compared as a padded-out ID because that is what it will be
       * converted to when the callback has finished choosing it. */
      if((r.ssl_version == SSL2_VERSION) &&
                  (id_len < SSL2_SSL_SESSION_ID_LENGTH))
            {
            memset(r.session_id + id_len, 0,
                  SSL2_SSL_SESSION_ID_LENGTH - id_len);
            r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH;
            }

      CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
      p = (SSL_SESSION *)lh_retrieve(ssl->ctx->sessions, &r);
      CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
      return (p != NULL);
      }

int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
      {
      return X509_PURPOSE_set(&s->purpose, purpose);
      }

int SSL_set_purpose(SSL *s, int purpose)
      {
      return X509_PURPOSE_set(&s->purpose, purpose);
      }

int SSL_CTX_set_trust(SSL_CTX *s, int trust)
      {
      return X509_TRUST_set(&s->trust, trust);
      }

int SSL_set_trust(SSL *s, int trust)
      {
      return X509_TRUST_set(&s->trust, trust);
      }

void SSL_free(SSL *s)
      {
      int i;

      if(s == NULL)
          return;

      i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
#ifdef REF_PRINT
      REF_PRINT("SSL",s);
#endif
      if (i > 0) return;
#ifdef REF_CHECK
      if (i < 0)
            {
            fprintf(stderr,"SSL_free, bad reference count\n");
            abort(); /* ok */
            }
#endif

      CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);

      if (s->bbio != NULL)
            {
            /* If the buffering BIO is in place, pop it off */
            if (s->bbio == s->wbio)
                  {
                  s->wbio=BIO_pop(s->wbio);
                  }
            BIO_free(s->bbio);
            s->bbio=NULL;
            }
      if (s->rbio != NULL)
            BIO_free_all(s->rbio);
      if ((s->wbio != NULL) && (s->wbio != s->rbio))
            BIO_free_all(s->wbio);

      if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);

      /* add extra stuff */
      if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
      if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);

      /* Make the next call work :-) */
      if (s->session != NULL)
            {
            ssl_clear_bad_session(s);
            SSL_SESSION_free(s->session);
            }

      ssl_clear_cipher_ctx(s);

      if (s->cert != NULL) ssl_cert_free(s->cert);
      /* Free up if allocated */

      if (s->ctx) SSL_CTX_free(s->ctx);

      if (s->client_CA != NULL)
            sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);

      if (s->method != NULL) s->method->ssl_free(s);

#ifndef     OPENSSL_NO_KRB5
      if (s->kssl_ctx != NULL)
            kssl_ctx_free(s->kssl_ctx);
#endif      /* OPENSSL_NO_KRB5 */

      OPENSSL_free(s);
      }

void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
      {
      /* If the output buffering BIO is still in place, remove it
       */
      if (s->bbio != NULL)
            {
            if (s->wbio == s->bbio)
                  {
                  s->wbio=s->wbio->next_bio;
                  s->bbio->next_bio=NULL;
                  }
            }
      if ((s->rbio != NULL) && (s->rbio != rbio))
            BIO_free_all(s->rbio);
      if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
            BIO_free_all(s->wbio);
      s->rbio=rbio;
      s->wbio=wbio;
      }

BIO *SSL_get_rbio(SSL *s)
      { return(s->rbio); }

BIO *SSL_get_wbio(SSL *s)
      { return(s->wbio); }

int SSL_get_fd(SSL *s)
      {
      return(SSL_get_rfd(s));
      }

int SSL_get_rfd(SSL *s)
      {
      int ret= -1;
      BIO *b,*r;

      b=SSL_get_rbio(s);
      r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
      if (r != NULL)
            BIO_get_fd(r,&ret);
      return(ret);
      }

int SSL_get_wfd(SSL *s)
      {
      int ret= -1;
      BIO *b,*r;

      b=SSL_get_wbio(s);
      r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
      if (r != NULL)
            BIO_get_fd(r,&ret);
      return(ret);
      }

#ifndef OPENSSL_NO_SOCK
int SSL_set_fd(SSL *s,int fd)
      {
      int ret=0;
      BIO *bio=NULL;

      bio=BIO_new(BIO_s_socket());

      if (bio == NULL)
            {
            SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
            goto err;
            }
      BIO_set_fd(bio,fd,BIO_NOCLOSE);
      SSL_set_bio(s,bio,bio);
      ret=1;
err:
      return(ret);
      }

int SSL_set_wfd(SSL *s,int fd)
      {
      int ret=0;
      BIO *bio=NULL;

      if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
            || ((int)BIO_get_fd(s->rbio,NULL) != fd))
            {
            bio=BIO_new(BIO_s_socket());

            if (bio == NULL)
                  { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
            BIO_set_fd(bio,fd,BIO_NOCLOSE);
            SSL_set_bio(s,SSL_get_rbio(s),bio);
            }
      else
            SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
      ret=1;
err:
      return(ret);
      }

int SSL_set_rfd(SSL *s,int fd)
      {
      int ret=0;
      BIO *bio=NULL;

      if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
            || ((int)BIO_get_fd(s->wbio,NULL) != fd))
            {
            bio=BIO_new(BIO_s_socket());

            if (bio == NULL)
                  {
                  SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
                  goto err;
                  }
            BIO_set_fd(bio,fd,BIO_NOCLOSE);
            SSL_set_bio(s,bio,SSL_get_wbio(s));
            }
      else
            SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
      ret=1;
err:
      return(ret);
      }
#endif


/* return length of latest Finished message we sent, copy to 'buf' */
size_t SSL_get_finished(SSL *s, void *buf, size_t count)
      {
      size_t ret = 0;
      
      if (s->s3 != NULL)
            {
            ret = s->s3->tmp.finish_md_len;
            if (count > ret)
                  count = ret;
            memcpy(buf, s->s3->tmp.finish_md, count);
            }
      return ret;
      }

/* return length of latest Finished message we expected, copy to 'buf' */
size_t SSL_get_peer_finished(SSL *s, void *buf, size_t count)
      {
      size_t ret = 0;
      
      if (s->s3 != NULL)
            {
            ret = s->s3->tmp.peer_finish_md_len;
            if (count > ret)
                  count = ret;
            memcpy(buf, s->s3->tmp.peer_finish_md, count);
            }
      return ret;
      }


int SSL_get_verify_mode(SSL *s)
      {
      return(s->verify_mode);
      }

int SSL_get_verify_depth(SSL *s)
      {
      return(s->verify_depth);
      }

int (*SSL_get_verify_callback(SSL *s))(int,X509_STORE_CTX *)
      {
      return(s->verify_callback);
      }

int SSL_CTX_get_verify_mode(SSL_CTX *ctx)
      {
      return(ctx->verify_mode);
      }

int SSL_CTX_get_verify_depth(SSL_CTX *ctx)
      {
      return(ctx->verify_depth);
      }

int (*SSL_CTX_get_verify_callback(SSL_CTX *ctx))(int,X509_STORE_CTX *)
      {
      return(ctx->default_verify_callback);
      }

void SSL_set_verify(SSL *s,int mode,
                int (*callback)(int ok,X509_STORE_CTX *ctx))
      {
      s->verify_mode=mode;
      if (callback != NULL)
            s->verify_callback=callback;
      }

void SSL_set_verify_depth(SSL *s,int depth)
      {
      s->verify_depth=depth;
      }

void SSL_set_read_ahead(SSL *s,int yes)
      {
      s->read_ahead=yes;
      }

int SSL_get_read_ahead(SSL *s)
      {
      return(s->read_ahead);
      }

int SSL_pending(SSL *s)
      {
      /* SSL_pending cannot work properly if read-ahead is enabled
       * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
       * and it is impossible to fix since SSL_pending cannot report
       * errors that may be observed while scanning the new data.
       * (Note that SSL_pending() is often used as a boolean value,
       * so we'd better not return -1.)
       */
      return(s->method->ssl_pending(s));
      }

X509 *SSL_get_peer_certificate(SSL *s)
      {
      X509 *r;
      
      if ((s == NULL) || (s->session == NULL))
            r=NULL;
      else
            r=s->session->peer;

      if (r == NULL) return(r);

      CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);

      return(r);
      }

STACK_OF(X509) *SSL_get_peer_cert_chain(SSL *s)
      {
      STACK_OF(X509) *r;
      
      if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
            r=NULL;
      else
            r=s->session->sess_cert->cert_chain;

      /* If we are a client, cert_chain includes the peer's own
       * certificate; if we are a server, it does not. */
      
      return(r);
      }

/* Now in theory, since the calling process own 't' it should be safe to
 * modify.  We need to be able to read f without being hassled */
void SSL_copy_session_id(SSL *t,SSL *f)
      {
      CERT *tmp;

      /* Do we need to to SSL locking? */
      SSL_set_session(t,SSL_get_session(f));

      /* what if we are setup as SSLv2 but want to talk SSLv3 or
       * vice-versa */
      if (t->method != f->method)
            {
            t->method->ssl_free(t); /* cleanup current */
            t->method=f->method;    /* change method */
            t->method->ssl_new(t);  /* setup new */
            }

      tmp=t->cert;
      if (f->cert != NULL)
            {
            CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
            t->cert=f->cert;
            }
      else
            t->cert=NULL;
      if (tmp != NULL) ssl_cert_free(tmp);
      SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
      }

/* Fix this so it checks all the valid key/cert options */
int SSL_CTX_check_private_key(SSL_CTX *ctx)
      {
      if (  (ctx == NULL) ||
            (ctx->cert == NULL) ||
            (ctx->cert->key->x509 == NULL))
            {
            SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
            return(0);
            }
      if    (ctx->cert->key->privatekey == NULL)
            {
            SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
            return(0);
            }
      return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
      }

/* Fix this function so that it takes an optional type parameter */
int SSL_check_private_key(SSL *ssl)
      {
      if (ssl == NULL)
            {
            SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
            return(0);
            }
      if (ssl->cert == NULL)
            {
                SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
            return 0;
            }
      if (ssl->cert->key->x509 == NULL)
            {
            SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
            return(0);
            }
      if (ssl->cert->key->privatekey == NULL)
            {
            SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
            return(0);
            }
      return(X509_check_private_key(ssl->cert->key->x509,
            ssl->cert->key->privatekey));
      }

int SSL_accept(SSL *s)
      {
      if (s->handshake_func == 0)
            /* Not properly initialized yet */
            SSL_set_accept_state(s);

      return(s->method->ssl_accept(s));
      }

int SSL_connect(SSL *s)
      {
      if (s->handshake_func == 0)
            /* Not properly initialized yet */
            SSL_set_connect_state(s);

      return(s->method->ssl_connect(s));
      }

long SSL_get_default_timeout(SSL *s)
      {
      return(s->method->get_timeout());
      }

int SSL_read(SSL *s,void *buf,int num)
      {
      if (s->handshake_func == 0)
            {
            SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
            return -1;
            }

      if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
            {
            s->rwstate=SSL_NOTHING;
            return(0);
            }
      return(s->method->ssl_read(s,buf,num));
      }

int SSL_peek(SSL *s,void *buf,int num)
      {
      if (s->handshake_func == 0)
            {
            SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
            return -1;
            }

      if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
            {
            return(0);
            }
      return(s->method->ssl_peek(s,buf,num));
      }

int SSL_write(SSL *s,const void *buf,int num)
      {
      if (s->handshake_func == 0)
            {
            SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
            return -1;
            }

      if (s->shutdown & SSL_SENT_SHUTDOWN)
            {
            s->rwstate=SSL_NOTHING;
            SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
            return(-1);
            }
      return(s->method->ssl_write(s,buf,num));
      }

int SSL_shutdown(SSL *s)
      {
      /* Note that this function behaves differently from what one might
       * expect.  Return values are 0 for no success (yet),
       * 1 for success; but calling it once is usually not enough,
       * even if blocking I/O is used (see ssl3_shutdown).
       */

      if (s->handshake_func == 0)
            {
            SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
            return -1;
            }

      if ((s != NULL) && !SSL_in_init(s))
            return(s->method->ssl_shutdown(s));
      else
            return(1);
      }

int SSL_renegotiate(SSL *s)
      {
      if (s->new_session == 0)
            {
            s->new_session=1;
            }
      return(s->method->ssl_renegotiate(s));
      }

int SSL_renegotiate_pending(SSL *s)
      {
      /* becomes true when negotiation is requested;
       * false again once a handshake has finished */
      return (s->new_session != 0);
      }

long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
      {
      long l;

      switch (cmd)
            {
      case SSL_CTRL_GET_READ_AHEAD:
            return(s->read_ahead);
      case SSL_CTRL_SET_READ_AHEAD:
            l=s->read_ahead;
            s->read_ahead=larg;
            return(l);

      case SSL_CTRL_SET_MSG_CALLBACK_ARG:
            s->msg_callback_arg = parg;
            return 1;

      case SSL_CTRL_OPTIONS:
            return(s->options|=larg);
      case SSL_CTRL_MODE:
            return(s->mode|=larg);
      case SSL_CTRL_GET_MAX_CERT_LIST:
            return(s->max_cert_list);
      case SSL_CTRL_SET_MAX_CERT_LIST:
            l=s->max_cert_list;
            s->max_cert_list=larg;
            return(l);
      default:
            return(s->method->ssl_ctrl(s,cmd,larg,parg));
            }
      }

long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)())
      {
      switch(cmd)
            {
      case SSL_CTRL_SET_MSG_CALLBACK:
            s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
            return 1;
            
      default:
            return(s->method->ssl_callback_ctrl(s,cmd,fp));
            }
      }

struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx)
      {
      return ctx->sessions;
      }

long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
      {
      long l;

      switch (cmd)
            {
      case SSL_CTRL_GET_READ_AHEAD:
            return(ctx->read_ahead);
      case SSL_CTRL_SET_READ_AHEAD:
            l=ctx->read_ahead;
            ctx->read_ahead=larg;
            return(l);
            
      case SSL_CTRL_SET_MSG_CALLBACK_ARG:
            ctx->msg_callback_arg = parg;
            return 1;

      case SSL_CTRL_GET_MAX_CERT_LIST:
            return(ctx->max_cert_list);
      case SSL_CTRL_SET_MAX_CERT_LIST:
            l=ctx->max_cert_list;
            ctx->max_cert_list=larg;
            return(l);

      case SSL_CTRL_SET_SESS_CACHE_SIZE:
            l=ctx->session_cache_size;
            ctx->session_cache_size=larg;
            return(l);
      case SSL_CTRL_GET_SESS_CACHE_SIZE:
            return(ctx->session_cache_size);
      case SSL_CTRL_SET_SESS_CACHE_MODE:
            l=ctx->session_cache_mode;
            ctx->session_cache_mode=larg;
            return(l);
      case SSL_CTRL_GET_SESS_CACHE_MODE:
            return(ctx->session_cache_mode);

      case SSL_CTRL_SESS_NUMBER:
            return(ctx->sessions->num_items);
      case SSL_CTRL_SESS_CONNECT:
            return(ctx->stats.sess_connect);
      case SSL_CTRL_SESS_CONNECT_GOOD:
            return(ctx->stats.sess_connect_good);
      case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
            return(ctx->stats.sess_connect_renegotiate);
      case SSL_CTRL_SESS_ACCEPT:
            return(ctx->stats.sess_accept);
      case SSL_CTRL_SESS_ACCEPT_GOOD:
            return(ctx->stats.sess_accept_good);
      case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
            return(ctx->stats.sess_accept_renegotiate);
      case SSL_CTRL_SESS_HIT:
            return(ctx->stats.sess_hit);
      case SSL_CTRL_SESS_CB_HIT:
            return(ctx->stats.sess_cb_hit);
      case SSL_CTRL_SESS_MISSES:
            return(ctx->stats.sess_miss);
      case SSL_CTRL_SESS_TIMEOUTS:
            return(ctx->stats.sess_timeout);
      case SSL_CTRL_SESS_CACHE_FULL:
            return(ctx->stats.sess_cache_full);
      case SSL_CTRL_OPTIONS:
            return(ctx->options|=larg);
      case SSL_CTRL_MODE:
            return(ctx->mode|=larg);
      default:
            return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
            }
      }

long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)())
      {
      switch(cmd)
            {
      case SSL_CTRL_SET_MSG_CALLBACK:
            ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
            return 1;

      default:
            return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
            }
      }

int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
      {
      long l;

      l=a->id-b->id;
      if (l == 0L)
            return(0);
      else
            return((l > 0)?1:-1);
      }

int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
                  const SSL_CIPHER * const *bp)
      {
      long l;

      l=(*ap)->id-(*bp)->id;
      if (l == 0L)
            return(0);
      else
            return((l > 0)?1:-1);
      }

/** return a STACK of the ciphers available for the SSL and in order of
 * preference */
01075 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(SSL *s)
      {
      if (s != NULL)
            {
            if (s->cipher_list != NULL)
                  {
                  return(s->cipher_list);
                  }
            else if ((s->ctx != NULL) &&
                  (s->ctx->cipher_list != NULL))
                  {
                  return(s->ctx->cipher_list);
                  }
            }
      return(NULL);
      }

/** return a STACK of the ciphers available for the SSL and in order of
 * algorithm id */
STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
      {
      if (s != NULL)
            {
            if (s->cipher_list_by_id != NULL)
                  {
                  return(s->cipher_list_by_id);
                  }
            else if ((s->ctx != NULL) &&
                  (s->ctx->cipher_list_by_id != NULL))
                  {
                  return(s->ctx->cipher_list_by_id);
                  }
            }
      return(NULL);
      }

/** The old interface to get the same thing as SSL_get_ciphers() */
01112 const char *SSL_get_cipher_list(SSL *s,int n)
      {
      SSL_CIPHER *c;
      STACK_OF(SSL_CIPHER) *sk;

      if (s == NULL) return(NULL);
      sk=SSL_get_ciphers(s);
      if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
            return(NULL);
      c=sk_SSL_CIPHER_value(sk,n);
      if (c == NULL) return(NULL);
      return(c->name);
      }

/** specify the ciphers to be used by default by the SSL_CTX */
01127 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
      {
      STACK_OF(SSL_CIPHER) *sk;
      
      sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
            &ctx->cipher_list_by_id,str);
/* XXXX */
      return((sk == NULL)?0:1);
      }

/** specify the ciphers to be used by the SSL */
01138 int SSL_set_cipher_list(SSL *s,const char *str)
      {
      STACK_OF(SSL_CIPHER) *sk;
      
      sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
            &s->cipher_list_by_id,str);
/* XXXX */
      return((sk == NULL)?0:1);
      }

/* works well for SSLv2, not so good for SSLv3 */
char *SSL_get_shared_ciphers(SSL *s,char *buf,int len)
      {
      char *p;
      const char *cp;
      STACK_OF(SSL_CIPHER) *sk;
      SSL_CIPHER *c;
      int i;

      if ((s->session == NULL) || (s->session->ciphers == NULL) ||
            (len < 2))
            return(NULL);

      p=buf;
      sk=s->session->ciphers;
      for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
            {
            /* Decrement for either the ':' or a '\0' */
            len--;
            c=sk_SSL_CIPHER_value(sk,i);
            for (cp=c->name; *cp; )
                  {
                  if (len-- == 0)
                        {
                        *p='\0';
                        return(buf);
                        }
                  else
                        *(p++)= *(cp++);
                  }
            *(p++)=':';
            }
      p[-1]='\0';
      return(buf);
      }

int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p)
      {
      int i,j=0;
      SSL_CIPHER *c;
      unsigned char *q;
#ifndef OPENSSL_NO_KRB5
        int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx);
#endif /* OPENSSL_NO_KRB5 */

      if (sk == NULL) return(0);
      q=p;

      for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
            {
            c=sk_SSL_CIPHER_value(sk,i);
#ifndef OPENSSL_NO_KRB5
                if ((c->algorithms & SSL_KRB5) && nokrb5)
                    continue;
#endif /* OPENSSL_NO_KRB5 */                    
            j=ssl_put_cipher_by_char(s,c,p);
            p+=j;
            }
      return(p-q);
      }

STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
                                     STACK_OF(SSL_CIPHER) **skp)
      {
      SSL_CIPHER *c;
      STACK_OF(SSL_CIPHER) *sk;
      int i,n;

      n=ssl_put_cipher_by_char(s,NULL,NULL);
      if ((num%n) != 0)
            {
            SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
            return(NULL);
            }
      if ((skp == NULL) || (*skp == NULL))
            sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
      else
            {
            sk= *skp;
            sk_SSL_CIPHER_zero(sk);
            }

      for (i=0; i<num; i+=n)
            {
            c=ssl_get_cipher_by_char(s,p);
            p+=n;
            if (c != NULL)
                  {
                  if (!sk_SSL_CIPHER_push(sk,c))
                        {
                        SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
                        goto err;
                        }
                  }
            }

      if (skp != NULL)
            *skp=sk;
      return(sk);
err:
      if ((skp == NULL) || (*skp == NULL))
            sk_SSL_CIPHER_free(sk);
      return(NULL);
      }

unsigned long SSL_SESSION_hash(SSL_SESSION *a)
      {
      unsigned long l;

      l=(unsigned long)
            ((unsigned int) a->session_id[0]     )|
            ((unsigned int) a->session_id[1]<< 8L)|
            ((unsigned long)a->session_id[2]<<16L)|
            ((unsigned long)a->session_id[3]<<24L);
      return(l);
      }

/* NB: If this function (or indeed the hash function which uses a sort of
 * coarser function than this one) is changed, ensure
 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
 * able to construct an SSL_SESSION that will collide with any existing session
 * with a matching session ID. */
int SSL_SESSION_cmp(SSL_SESSION *a,SSL_SESSION *b)
      {
      if (a->ssl_version != b->ssl_version)
            return(1);
      if (a->session_id_length != b->session_id_length)
            return(1);
      return(memcmp(a->session_id,b->session_id,a->session_id_length));
      }

/* These wrapper functions should remain rather than redeclaring
 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
 * variable. The reason is that the functions aren't static, they're exposed via
 * ssl.h. */
static IMPLEMENT_LHASH_HASH_FN(SSL_SESSION_hash, SSL_SESSION *)
static IMPLEMENT_LHASH_COMP_FN(SSL_SESSION_cmp, SSL_SESSION *)

SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
      {
      SSL_CTX *ret=NULL;
      
      if (meth == NULL)
            {
            SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
            return(NULL);
            }

      if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
            {
            SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
            goto err;
            }
      ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
      if (ret == NULL)
            goto err;

      memset(ret,0,sizeof(SSL_CTX));

      ret->method=meth;

      ret->cert_store=NULL;
      ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
      ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
      ret->session_cache_head=NULL;
      ret->session_cache_tail=NULL;

      /* We take the system default */
      ret->session_timeout=meth->get_timeout();

      ret->new_session_cb=0;
      ret->remove_session_cb=0;
      ret->get_session_cb=0;
      ret->generate_session_id=0;

      memset((char *)&ret->stats,0,sizeof(ret->stats));

      ret->references=1;
      ret->quiet_shutdown=0;

/*    ret->cipher=NULL;*/
/*    ret->s2->challenge=NULL;
      ret->master_key=NULL;
      ret->key_arg=NULL;
      ret->s2->conn_id=NULL; */

      ret->info_callback=NULL;

      ret->app_verify_callback=0;
      ret->app_verify_arg=NULL;

      ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
      ret->read_ahead=0;
      ret->msg_callback=0;
      ret->msg_callback_arg=NULL;
      ret->verify_mode=SSL_VERIFY_NONE;
      ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
      ret->sid_ctx_length=0;
      ret->default_verify_callback=NULL;
      if ((ret->cert=ssl_cert_new()) == NULL)
            goto err;

      ret->default_passwd_callback=0;
      ret->default_passwd_callback_userdata=NULL;
      ret->client_cert_cb=0;

      ret->sessions=lh_new(LHASH_HASH_FN(SSL_SESSION_hash),
                  LHASH_COMP_FN(SSL_SESSION_cmp));
      if (ret->sessions == NULL) goto err;
      ret->cert_store=X509_STORE_new();
      if (ret->cert_store == NULL) goto err;

      ssl_create_cipher_list(ret->method,
            &ret->cipher_list,&ret->cipher_list_by_id,
            SSL_DEFAULT_CIPHER_LIST);
      if (ret->cipher_list == NULL
          || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
            {
            SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
            goto err2;
            }

      if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
            {
            SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
            goto err2;
            }
      if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
            {
            SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
            goto err2;
            }
      if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
            {
            SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
            goto err2;
            }

      if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
            goto err;

      CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);

      ret->extra_certs=NULL;
      ret->comp_methods=SSL_COMP_get_compression_methods();

      return(ret);
err:
      SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
err2:
      if (ret != NULL) SSL_CTX_free(ret);
      return(NULL);
      }

#if 0
static void SSL_COMP_free(SSL_COMP *comp)
    { OPENSSL_free(comp); }
#endif

void SSL_CTX_free(SSL_CTX *a)
      {
      int i;

      if (a == NULL) return;

      i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
#ifdef REF_PRINT
      REF_PRINT("SSL_CTX",a);
#endif
      if (i > 0) return;
#ifdef REF_CHECK
      if (i < 0)
            {
            fprintf(stderr,"SSL_CTX_free, bad reference count\n");
            abort(); /* ok */
            }
#endif

      /*
       * Free internal session cache. However: the remove_cb() may reference
       * the ex_data of SSL_CTX, thus the ex_data store can only be removed
       * after the sessions were flushed.
       * As the ex_data handling routines might also touch the session cache,
       * the most secure solution seems to be: empty (flush) the cache, then
       * free ex_data, then finally free the cache.
       * (See ticket [openssl.org #212].)
       */
      if (a->sessions != NULL)
            SSL_CTX_flush_sessions(a,0);

      CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);

      if (a->sessions != NULL)
            lh_free(a->sessions);

      if (a->cert_store != NULL)
            X509_STORE_free(a->cert_store);
      if (a->cipher_list != NULL)
            sk_SSL_CIPHER_free(a->cipher_list);
      if (a->cipher_list_by_id != NULL)
            sk_SSL_CIPHER_free(a->cipher_list_by_id);
      if (a->cert != NULL)
            ssl_cert_free(a->cert);
      if (a->client_CA != NULL)
            sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
      if (a->extra_certs != NULL)
            sk_X509_pop_free(a->extra_certs,X509_free);
#if 0 /* This should never be done, since it removes a global database */
      if (a->comp_methods != NULL)
            sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
#else
      a->comp_methods = NULL;
#endif
      OPENSSL_free(a);
      }

void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
      {
      ctx->default_passwd_callback=cb;
      }

void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
      {
      ctx->default_passwd_callback_userdata=u;
      }

void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
      {
      ctx->app_verify_callback=cb;
      ctx->app_verify_arg=arg;
      }

void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
      {
      ctx->verify_mode=mode;
      ctx->default_verify_callback=cb;
      }

void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
      {
      ctx->verify_depth=depth;
      }

void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
      {
      CERT_PKEY *cpk;
      int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
      int rsa_enc_export,dh_rsa_export,dh_dsa_export;
      int rsa_tmp_export,dh_tmp_export,kl;
      unsigned long mask,emask;

      if (c == NULL) return;

      kl=SSL_C_EXPORT_PKEYLENGTH(cipher);

#ifndef OPENSSL_NO_RSA
      rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
      rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
            (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
#else
      rsa_tmp=rsa_tmp_export=0;
#endif
#ifndef OPENSSL_NO_DH
      dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
      dh_tmp_export=(c->dh_tmp_cb != NULL ||
            (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
#else
      dh_tmp=dh_tmp_export=0;
#endif

      cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
      rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
      rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
      cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
      rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
      cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
      dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
      cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
      dh_rsa=  (cpk->x509 != NULL && cpk->privatekey != NULL);
      dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
      cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
/* FIX THIS EAY EAY EAY */
      dh_dsa=  (cpk->x509 != NULL && cpk->privatekey != NULL);
      dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);

      mask=0;
      emask=0;

#ifdef CIPHER_DEBUG
      printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
            rsa_tmp,rsa_tmp_export,dh_tmp,
            rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
#endif

      if (rsa_enc || (rsa_tmp && rsa_sign))
            mask|=SSL_kRSA;
      if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
            emask|=SSL_kRSA;

#if 0
      /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
      if (  (dh_tmp || dh_rsa || dh_dsa) && 
            (rsa_enc || rsa_sign || dsa_sign))
            mask|=SSL_kEDH;
      if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
            (rsa_enc || rsa_sign || dsa_sign))
            emask|=SSL_kEDH;
#endif

      if (dh_tmp_export) 
            emask|=SSL_kEDH;

      if (dh_tmp)
            mask|=SSL_kEDH;

      if (dh_rsa) mask|=SSL_kDHr;
      if (dh_rsa_export) emask|=SSL_kDHr;

      if (dh_dsa) mask|=SSL_kDHd;
      if (dh_dsa_export) emask|=SSL_kDHd;

      if (rsa_enc || rsa_sign)
            {
            mask|=SSL_aRSA;
            emask|=SSL_aRSA;
            }

      if (dsa_sign)
            {
            mask|=SSL_aDSS;
            emask|=SSL_aDSS;
            }

      mask|=SSL_aNULL;
      emask|=SSL_aNULL;

#ifndef OPENSSL_NO_KRB5
      mask|=SSL_kKRB5|SSL_aKRB5;
      emask|=SSL_kKRB5|SSL_aKRB5;
#endif

      c->mask=mask;
      c->export_mask=emask;
      c->valid=1;
      }

/* THIS NEEDS CLEANING UP */
X509 *ssl_get_server_send_cert(SSL *s)
      {
      unsigned long alg,mask,kalg;
      CERT *c;
      int i,is_export;

      c=s->cert;
      ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
      alg=s->s3->tmp.new_cipher->algorithms;
      is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
      mask=is_export?c->export_mask:c->mask;
      kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);

      if    (kalg & SSL_kDHr)
            i=SSL_PKEY_DH_RSA;
      else if (kalg & SSL_kDHd)
            i=SSL_PKEY_DH_DSA;
      else if (kalg & SSL_aDSS)
            i=SSL_PKEY_DSA_SIGN;
      else if (kalg & SSL_aRSA)
            {
            if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
                  i=SSL_PKEY_RSA_SIGN;
            else
                  i=SSL_PKEY_RSA_ENC;
            }
      else if (kalg & SSL_aKRB5)
            {
            /* VRS something else here? */
            return(NULL);
            }
      else /* if (kalg & SSL_aNULL) */
            {
            SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,ERR_R_INTERNAL_ERROR);
            return(NULL);
            }
      if (c->pkeys[i].x509 == NULL) return(NULL);
      return(c->pkeys[i].x509);
      }

EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
      {
      unsigned long alg;
      CERT *c;

      alg=cipher->algorithms;
      c=s->cert;

      if ((alg & SSL_aDSS) &&
            (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
            return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
      else if (alg & SSL_aRSA)
            {
            if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
                  return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
            else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
                  return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
            else
                  return(NULL);
            }
      else /* if (alg & SSL_aNULL) */
            {
            SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
            return(NULL);
            }
      }

void ssl_update_cache(SSL *s,int mode)
      {
      int i;

      /* If the session_id_length is 0, we are not supposed to cache it,
       * and it would be rather hard to do anyway :-) */
      if (s->session->session_id_length == 0) return;

      i=s->ctx->session_cache_mode;
      if ((i & mode) && (!s->hit)
            && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
                || SSL_CTX_add_session(s->ctx,s->session))
            && (s->ctx->new_session_cb != NULL))
            {
            CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
            if (!s->ctx->new_session_cb(s,s->session))
                  SSL_SESSION_free(s->session);
            }

      /* auto flush every 255 connections */
      if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
            ((i & mode) == mode))
            {
            if (  (((mode & SSL_SESS_CACHE_CLIENT)
                  ?s->ctx->stats.sess_connect_good
                  :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
                  {
                  SSL_CTX_flush_sessions(s->ctx,time(NULL));
                  }
            }
      }

SSL_METHOD *SSL_get_ssl_method(SSL *s)
      {
      return(s->method);
      }

int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
      {
      int conn= -1;
      int ret=1;

      if (s->method != meth)
            {
            if (s->handshake_func != NULL)
                  conn=(s->handshake_func == s->method->ssl_connect);

            if (s->method->version == meth->version)
                  s->method=meth;
            else
                  {
                  s->method->ssl_free(s);
                  s->method=meth;
                  ret=s->method->ssl_new(s);
                  }

            if (conn == 1)
                  s->handshake_func=meth->ssl_connect;
            else if (conn == 0)
                  s->handshake_func=meth->ssl_accept;
            }
      return(ret);
      }

int SSL_get_error(SSL *s,int i)
      {
      int reason;
      unsigned long l;
      BIO *bio;

      if (i > 0) return(SSL_ERROR_NONE);

      /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
       * etc, where we do encode the error */
      if ((l=ERR_peek_error()) != 0)
            {
            if (ERR_GET_LIB(l) == ERR_LIB_SYS)
                  return(SSL_ERROR_SYSCALL);
            else
                  return(SSL_ERROR_SSL);
            }

      if ((i < 0) && SSL_want_read(s))
            {
            bio=SSL_get_rbio(s);
            if (BIO_should_read(bio))
                  return(SSL_ERROR_WANT_READ);
            else if (BIO_should_write(bio))
                  /* This one doesn't make too much sense ... We never try
                   * to write to the rbio, and an application program where
                   * rbio and wbio are separate couldn't even know what it
                   * should wait for.
                   * However if we ever set s->rwstate incorrectly
                   * (so that we have SSL_want_read(s) instead of
                   * SSL_want_write(s)) and rbio and wbio *are* the same,
                   * this test works around that bug; so it might be safer
                   * to keep it. */
                  return(SSL_ERROR_WANT_WRITE);
            else if (BIO_should_io_special(bio))
                  {
                  reason=BIO_get_retry_reason(bio);
                  if (reason == BIO_RR_CONNECT)
                        return(SSL_ERROR_WANT_CONNECT);
                  else if (reason == BIO_RR_ACCEPT)
                        return(SSL_ERROR_WANT_ACCEPT);
                  else
                        return(SSL_ERROR_SYSCALL); /* unknown */
                  }
            }

      if ((i < 0) && SSL_want_write(s))
            {
            bio=SSL_get_wbio(s);
            if (BIO_should_write(bio))
                  return(SSL_ERROR_WANT_WRITE);
            else if (BIO_should_read(bio))
                  /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
                  return(SSL_ERROR_WANT_READ);
            else if (BIO_should_io_special(bio))
                  {
                  reason=BIO_get_retry_reason(bio);
                  if (reason == BIO_RR_CONNECT)
                        return(SSL_ERROR_WANT_CONNECT);
                  else if (reason == BIO_RR_ACCEPT)
                        return(SSL_ERROR_WANT_ACCEPT);
                  else
                        return(SSL_ERROR_SYSCALL);
                  }
            }
      if ((i < 0) && SSL_want_x509_lookup(s))
            {
            return(SSL_ERROR_WANT_X509_LOOKUP);
            }

      if (i == 0)
            {
            if (s->version == SSL2_VERSION)
                  {
                  /* assume it is the socket being closed */
                  return(SSL_ERROR_ZERO_RETURN);
                  }
            else
                  {
                  if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
                        (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
                        return(SSL_ERROR_ZERO_RETURN);
                  }
            }
      return(SSL_ERROR_SYSCALL);
      }

int SSL_do_handshake(SSL *s)
      {
      int ret=1;

      if (s->handshake_func == NULL)
            {
            SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
            return(-1);
            }

      s->method->ssl_renegotiate_check(s);

      if (SSL_in_init(s) || SSL_in_before(s))
            {
            ret=s->handshake_func(s);
            }
      return(ret);
      }

/* For the next 2 functions, SSL_clear() sets shutdown and so
 * one of these calls will reset it */
void SSL_set_accept_state(SSL *s)
      {
      s->server=1;
      s->shutdown=0;
      s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
      s->handshake_func=s->method->ssl_accept;
      /* clear the current cipher */
      ssl_clear_cipher_ctx(s);
      }

void SSL_set_connect_state(SSL *s)
      {
      s->server=0;
      s->shutdown=0;
      s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
      s->handshake_func=s->method->ssl_connect;
      /* clear the current cipher */
      ssl_clear_cipher_ctx(s);
      }

int ssl_undefined_function(SSL *s)
      {
      SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
      return(0);
      }

SSL_METHOD *ssl_bad_method(int ver)
      {
      SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
      return(NULL);
      }

const char *SSL_get_version(SSL *s)
      {
      if (s->version == TLS1_VERSION)
            return("TLSv1");
      else if (s->version == SSL3_VERSION)
            return("SSLv3");
      else if (s->version == SSL2_VERSION)
            return("SSLv2");
      else
            return("unknown");
      }

SSL *SSL_dup(SSL *s)
      {
      STACK_OF(X509_NAME) *sk;
      X509_NAME *xn;
      SSL *ret;
      int i;
             
      if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
          return(NULL);

      ret->version = s->version;
      ret->type = s->type;
      ret->method = s->method;

      if (s->session != NULL)
            {
            /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
            SSL_copy_session_id(ret,s);
            }
      else
            {
            /* No session has been established yet, so we have to expect
             * that s->cert or ret->cert will be changed later --
             * they should not both point to the same object,
             * and thus we can't use SSL_copy_session_id. */

            ret->method->ssl_free(ret);
            ret->method = s->method;
            ret->method->ssl_new(ret);

            if (s->cert != NULL)
                  {
                  if (ret->cert != NULL)
                        {
                        ssl_cert_free(ret->cert);
                        }
                  ret->cert = ssl_cert_dup(s->cert);
                  if (ret->cert == NULL)
                        goto err;
                  }
                        
            SSL_set_session_id_context(ret,
                  s->sid_ctx, s->sid_ctx_length);
            }

      ret->options=s->options;
      ret->mode=s->mode;
      SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
      SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
      ret->msg_callback = s->msg_callback;
      ret->msg_callback_arg = s->msg_callback_arg;
      SSL_set_verify(ret,SSL_get_verify_mode(s),
            SSL_get_verify_callback(s));
      SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
      ret->generate_session_id = s->generate_session_id;

      SSL_set_info_callback(ret,SSL_get_info_callback(s));
      
      ret->debug=s->debug;

      /* copy app data, a little dangerous perhaps */
      if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
            goto err;

      /* setup rbio, and wbio */
      if (s->rbio != NULL)
            {
            if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
                  goto err;
            }
      if (s->wbio != NULL)
            {
            if (s->wbio != s->rbio)
                  {
                  if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
                        goto err;
                  }
            else
                  ret->wbio=ret->rbio;
            }
      ret->rwstate = s->rwstate;
      ret->in_handshake = s->in_handshake;
      ret->handshake_func = s->handshake_func;
      ret->server = s->server;
      ret->new_session = s->new_session;
      ret->quiet_shutdown = s->quiet_shutdown;
      ret->shutdown=s->shutdown;
      ret->state=s->state; /* SSL_dup does not really work at any state, though */
      ret->rstate=s->rstate;
      ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
      ret->hit=s->hit;
      ret->purpose=s->purpose;
      ret->trust=s->trust;

      /* dup the cipher_list and cipher_list_by_id stacks */
      if (s->cipher_list != NULL)
            {
            if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
                  goto err;
            }
      if (s->cipher_list_by_id != NULL)
            if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
                  == NULL)
                  goto err;

      /* Dup the client_CA list */
      if (s->client_CA != NULL)
            {
            if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
            ret->client_CA=sk;
            for (i=0; i<sk_X509_NAME_num(sk); i++)
                  {
                  xn=sk_X509_NAME_value(sk,i);
                  if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
                        {
                        X509_NAME_free(xn);
                        goto err;
                        }
                  }
            }

      if (0)
            {
err:
            if (ret != NULL) SSL_free(ret);
            ret=NULL;
            }
      return(ret);
      }

void ssl_clear_cipher_ctx(SSL *s)
      {
      if (s->enc_read_ctx != NULL)
            {
            EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
            OPENSSL_free(s->enc_read_ctx);
            s->enc_read_ctx=NULL;
            }
      if (s->enc_write_ctx != NULL)
            {
            EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
            OPENSSL_free(s->enc_write_ctx);
            s->enc_write_ctx=NULL;
            }
      if (s->expand != NULL)
            {
            COMP_CTX_free(s->expand);
            s->expand=NULL;
            }
      if (s->compress != NULL)
            {
            COMP_CTX_free(s->compress);
            s->compress=NULL;
            }
      }

/* Fix this function so that it takes an optional type parameter */
X509 *SSL_get_certificate(SSL *s)
      {
      if (s->cert != NULL)
            return(s->cert->key->x509);
      else
            return(NULL);
      }

/* Fix this function so that it takes an optional type parameter */
EVP_PKEY *SSL_get_privatekey(SSL *s)
      {
      if (s->cert != NULL)
            return(s->cert->key->privatekey);
      else
            return(NULL);
      }

SSL_CIPHER *SSL_get_current_cipher(SSL *s)
      {
      if ((s->session != NULL) && (s->session->cipher != NULL))
            return(s->session->cipher);
      return(NULL);
      }

int ssl_init_wbio_buffer(SSL *s,int push)
      {
      BIO *bbio;

      if (s->bbio == NULL)
            {
            bbio=BIO_new(BIO_f_buffer());
            if (bbio == NULL) return(0);
            s->bbio=bbio;
            }
      else
            {
            bbio=s->bbio;
            if (s->bbio == s->wbio)
                  s->wbio=BIO_pop(s->wbio);
            }
      (void)BIO_reset(bbio);
/*    if (!BIO_set_write_buffer_size(bbio,16*1024)) */
      if (!BIO_set_read_buffer_size(bbio,1))
            {
            SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
            return(0);
            }
      if (push)
            {
            if (s->wbio != bbio)
                  s->wbio=BIO_push(bbio,s->wbio);
            }
      else
            {
            if (s->wbio == bbio)
                  s->wbio=BIO_pop(bbio);
            }
      return(1);
      }

void ssl_free_wbio_buffer(SSL *s)
      {
      if (s->bbio == NULL) return;

      if (s->bbio == s->wbio)
            {
            /* remove buffering */
            s->wbio=BIO_pop(s->wbio);
#ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
            assert(s->wbio != NULL);
#endif      
      }
      BIO_free(s->bbio);
      s->bbio=NULL;
      }
      
void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
      {
      ctx->quiet_shutdown=mode;
      }

int SSL_CTX_get_quiet_shutdown(SSL_CTX *ctx)
      {
      return(ctx->quiet_shutdown);
      }

void SSL_set_quiet_shutdown(SSL *s,int mode)
      {
      s->quiet_shutdown=mode;
      }

int SSL_get_quiet_shutdown(SSL *s)
      {
      return(s->quiet_shutdown);
      }

void SSL_set_shutdown(SSL *s,int mode)
      {
      s->shutdown=mode;
      }

int SSL_get_shutdown(SSL *s)
      {
      return(s->shutdown);
      }

int SSL_version(SSL *s)
      {
      return(s->version);
      }

SSL_CTX *SSL_get_SSL_CTX(SSL *ssl)
      {
      return(ssl->ctx);
      }

#ifndef OPENSSL_NO_STDIO
int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
      {
      return(X509_STORE_set_default_paths(ctx->cert_store));
      }

int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
            const char *CApath)
      {
      int r;

#ifdef OPENSSL_FIPS
      if(ctx->method->version == TLS1_VERSION)
          FIPS_allow_md5(1);
#endif
      r=X509_STORE_load_locations(ctx->cert_store,CAfile,CApath);
#ifdef OPENSSL_FIPS
      if(ctx->method->version == TLS1_VERSION)
          FIPS_allow_md5(0);
#endif
      return r;
      }
#endif

void SSL_set_info_callback(SSL *ssl,
                     void (*cb)(const SSL *ssl,int type,int val))
      {
      ssl->info_callback=cb;
      }

void (*SSL_get_info_callback(SSL *ssl))(const SSL *ssl,int type,int val)
      {
      return ssl->info_callback;
      }

int SSL_state(SSL *ssl)
      {
      return(ssl->state);
      }

void SSL_set_verify_result(SSL *ssl,long arg)
      {
      ssl->verify_result=arg;
      }

long SSL_get_verify_result(SSL *ssl)
      {
      return(ssl->verify_result);
      }

int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
                   CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
      {
      return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
                        new_func, dup_func, free_func);
      }

int SSL_set_ex_data(SSL *s,int idx,void *arg)
      {
      return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
      }

void *SSL_get_ex_data(SSL *s,int idx)
      {
      return(CRYPTO_get_ex_data(&s->ex_data,idx));
      }

int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
                       CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
      {
      return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
                        new_func, dup_func, free_func);
      }

int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
      {
      return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
      }

void *SSL_CTX_get_ex_data(SSL_CTX *s,int idx)
      {
      return(CRYPTO_get_ex_data(&s->ex_data,idx));
      }

int ssl_ok(SSL *s)
      {
      return(1);
      }

X509_STORE *SSL_CTX_get_cert_store(SSL_CTX *ctx)
      {
      return(ctx->cert_store);
      }

void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
      {
      if (ctx->cert_store != NULL)
            X509_STORE_free(ctx->cert_store);
      ctx->cert_store=store;
      }

int SSL_want(SSL *s)
      {
      return(s->rwstate);
      }

/*!
 * \brief Set the callback for generating temporary RSA keys.
 * \param ctx the SSL context.
 * \param cb the callback
 */

#ifndef OPENSSL_NO_RSA
02264 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
                                            int is_export,
                                            int keylength))
    {
    SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
    }

void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
                                      int is_export,
                                      int keylength))
    {
    SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
    }
#endif

#ifdef DOXYGEN
/*!
 * \brief The RSA temporary key callback function.
 * \param ssl the SSL session.
 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
 * of the required key in bits.
 * \return the temporary RSA key.
 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
 */

RSA *cb(SSL *ssl,int is_export,int keylength)
    {}
#endif

/*!
 * \brief Set the callback for generating temporary DH keys.
 * \param ctx the SSL context.
 * \param dh the callback
 */

#ifndef OPENSSL_NO_DH
02301 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
                                          int keylength))
      {
      SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
      }

void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
                                    int keylength))
      {
      SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
      }
#endif


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))
      {
      SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)())cb);
      }
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))
      {
      SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)())cb);
      }



#if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
#include "../crypto/bio/bss_file.c"
#endif

IMPLEMENT_STACK_OF(SSL_CIPHER)
IMPLEMENT_STACK_OF(SSL_COMP)

Generated by  Doxygen 1.6.0   Back to index