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ssltest.c

/* ssl/ssltest.c */
/* 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) 1998-2000 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).
 *
 */

#define _BSD_SOURCE 1         /* Or gethostname won't be declared properly
                           on Linux and GNU platforms. */

#include <assert.h>
#include <errno.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>

#define USE_SOCKETS
#include "e_os.h"

#include <openssl/bio.h>
#include <openssl/crypto.h>
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <openssl/ssl.h>
#ifndef OPENSSL_NO_ENGINE
#include <openssl/engine.h>
#endif
#include <openssl/err.h>
#include <openssl/rand.h>
#include <openssl/fips.h>

#define _XOPEN_SOURCE_EXTENDED      1 /* Or gethostname won't be declared properly
                             on Compaq platforms (at least with DEC C).
                             Do not try to put it earlier, or IPv6 includes
                             get screwed...
                          */

#ifdef OPENSSL_SYS_WINDOWS
#include <winsock.h>
#else
#include OPENSSL_UNISTD
#endif

#ifdef OPENSSL_SYS_VMS
#  define TEST_SERVER_CERT "SYS$DISK:[-.APPS]SERVER.PEM"
#  define TEST_CLIENT_CERT "SYS$DISK:[-.APPS]CLIENT.PEM"
#elif defined(OPENSSL_SYS_WINCE)
#  define TEST_SERVER_CERT "\\OpenSSL\\server.pem"
#  define TEST_CLIENT_CERT "\\OpenSSL\\client.pem"
#else
#  define TEST_SERVER_CERT "../apps/server.pem"
#  define TEST_CLIENT_CERT "../apps/client.pem"
#endif

/* There is really no standard for this, so let's assign some tentative
   numbers.  In any case, these numbers are only for this test */
#define COMP_RLE  1
#define COMP_ZLIB 2

static int MS_CALLBACK verify_callback(int ok, X509_STORE_CTX *ctx);
#ifndef OPENSSL_NO_RSA
static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export,int keylength);
static void free_tmp_rsa(void);
#endif
static int MS_CALLBACK app_verify_callback(X509_STORE_CTX *ctx, void *arg);
#define APP_CALLBACK "Test Callback Argument"
static char *app_verify_arg = APP_CALLBACK;

#ifndef OPENSSL_NO_DH
static DH *get_dh512(void);
static DH *get_dh1024(void);
static DH *get_dh1024dsa(void);
#endif

static BIO *bio_err=NULL;
static BIO *bio_stdout=NULL;

static char *cipher=NULL;
static int verbose=0;
static int debug=0;
#if 0
/* Not used yet. */
#ifdef FIONBIO
static int s_nbio=0;
#endif
#endif

static const char rnd_seed[] = "string to make the random number generator think it has entropy";

int doit_biopair(SSL *s_ssl,SSL *c_ssl,long bytes,clock_t *s_time,clock_t *c_time);
int doit(SSL *s_ssl,SSL *c_ssl,long bytes);
static void sv_usage(void)
      {
      fprintf(stderr,"usage: ssltest [args ...]\n");
      fprintf(stderr,"\n");
#ifdef OPENSSL_FIPS
      fprintf(stderr,"-F             - run test in FIPS mode\n");
#endif
      fprintf(stderr," -server_auth  - check server certificate\n");
      fprintf(stderr," -client_auth  - do client authentication\n");
      fprintf(stderr," -v            - more output\n");
      fprintf(stderr," -d            - debug output\n");
      fprintf(stderr," -reuse        - use session-id reuse\n");
      fprintf(stderr," -num <val>    - number of connections to perform\n");
      fprintf(stderr," -bytes <val>  - number of bytes to swap between client/server\n");
#ifndef OPENSSL_NO_DH
      fprintf(stderr," -dhe1024      - use 1024 bit key (safe prime) for DHE\n");
      fprintf(stderr," -dhe1024dsa   - use 1024 bit key (with 160-bit subprime) for DHE\n");
      fprintf(stderr," -no_dhe       - disable DHE\n");
#endif
#ifndef OPENSSL_NO_SSL2
      fprintf(stderr," -ssl2         - use SSLv2\n");
#endif
#ifndef OPENSSL_NO_SSL3
      fprintf(stderr," -ssl3         - use SSLv3\n");
#endif
#ifndef OPENSSL_NO_TLS1
      fprintf(stderr," -tls1         - use TLSv1\n");
#endif
      fprintf(stderr," -CApath arg   - PEM format directory of CA's\n");
      fprintf(stderr," -CAfile arg   - PEM format file of CA's\n");
      fprintf(stderr," -cert arg     - Server certificate file\n");
      fprintf(stderr," -key arg      - Server key file (default: same as -cert)\n");
      fprintf(stderr," -c_cert arg   - Client certificate file\n");
      fprintf(stderr," -c_key arg    - Client key file (default: same as -c_cert)\n");
      fprintf(stderr," -cipher arg   - The cipher list\n");
      fprintf(stderr," -bio_pair     - Use BIO pairs\n");
      fprintf(stderr," -f            - Test even cases that can't work\n");
      fprintf(stderr," -time         - measure processor time used by client and server\n");
      fprintf(stderr," -zlib         - use zlib compression\n");
      fprintf(stderr," -time         - use rle compression\n");
      }

static void print_details(SSL *c_ssl, const char *prefix)
      {
      SSL_CIPHER *ciph;
      X509 *cert;
            
      ciph=SSL_get_current_cipher(c_ssl);
      BIO_printf(bio_stdout,"%s%s, cipher %s %s",
            prefix,
            SSL_get_version(c_ssl),
            SSL_CIPHER_get_version(ciph),
            SSL_CIPHER_get_name(ciph));
      cert=SSL_get_peer_certificate(c_ssl);
      if (cert != NULL)
            {
            EVP_PKEY *pkey = X509_get_pubkey(cert);
            if (pkey != NULL)
                  {
                  if (0) 
                        ;
#ifndef OPENSSL_NO_RSA
                  else if (pkey->type == EVP_PKEY_RSA && pkey->pkey.rsa != NULL
                        && pkey->pkey.rsa->n != NULL)
                        {
                        BIO_printf(bio_stdout, ", %d bit RSA",
                              BN_num_bits(pkey->pkey.rsa->n));
                        }
#endif
#ifndef OPENSSL_NO_DSA
                  else if (pkey->type == EVP_PKEY_DSA && pkey->pkey.dsa != NULL
                        && pkey->pkey.dsa->p != NULL)
                        {
                        BIO_printf(bio_stdout, ", %d bit DSA",
                              BN_num_bits(pkey->pkey.dsa->p));
                        }
#endif
                  EVP_PKEY_free(pkey);
                  }
            X509_free(cert);
            }
      /* The SSL API does not allow us to look at temporary RSA/DH keys,
       * otherwise we should print their lengths too */
      BIO_printf(bio_stdout,"\n");
      }

static void lock_dbg_cb(int mode, int type, const char *file, int line)
      {
      static int modes[CRYPTO_NUM_LOCKS]; /* = {0, 0, ... } */
      const char *errstr = NULL;
      int rw;
      
      rw = mode & (CRYPTO_READ|CRYPTO_WRITE);
      if (!((rw == CRYPTO_READ) || (rw == CRYPTO_WRITE)))
            {
            errstr = "invalid mode";
            goto err;
            }

      if (type < 0 || type >= CRYPTO_NUM_LOCKS)
            {
            errstr = "type out of bounds";
            goto err;
            }

      if (mode & CRYPTO_LOCK)
            {
            if (modes[type])
                  {
                  errstr = "already locked";
                  /* must not happen in a single-threaded program
                   * (would deadlock) */
                  goto err;
                  }

            modes[type] = rw;
            }
      else if (mode & CRYPTO_UNLOCK)
            {
            if (!modes[type])
                  {
                  errstr = "not locked";
                  goto err;
                  }
            
            if (modes[type] != rw)
                  {
                  errstr = (rw == CRYPTO_READ) ?
                        "CRYPTO_r_unlock on write lock" :
                        "CRYPTO_w_unlock on read lock";
                  }

            modes[type] = 0;
            }
      else
            {
            errstr = "invalid mode";
            goto err;
            }

 err:
      if (errstr)
            {
            /* we cannot use bio_err here */
            fprintf(stderr, "openssl (lock_dbg_cb): %s (mode=%d, type=%d) at %s:%d\n",
                  errstr, mode, type, file, line);
            }
      }

int main(int argc, char *argv[])
      {
      char *CApath=NULL,*CAfile=NULL;
      int badop=0;
      int bio_pair=0;
      int force=0;
      int tls1=0,ssl2=0,ssl3=0,ret=1;
      int client_auth=0;
      int server_auth=0,i;
      int app_verify=0;
      char *server_cert=TEST_SERVER_CERT;
      char *server_key=NULL;
      char *client_cert=TEST_CLIENT_CERT;
      char *client_key=NULL;
      SSL_CTX *s_ctx=NULL;
      SSL_CTX *c_ctx=NULL;
      SSL_METHOD *meth=NULL;
      SSL *c_ssl,*s_ssl;
      int number=1,reuse=0;
      long bytes=1L;
#ifndef OPENSSL_NO_DH
      DH *dh;
      int dhe1024 = 0, dhe1024dsa = 0;
#endif
      int no_dhe = 0;
      int print_time = 0;
      clock_t s_time = 0, c_time = 0;
      int comp = 0;
      COMP_METHOD *cm = NULL;
#ifdef OPENSSL_FIPS
      int fips_mode=0;
      const char *path=argv[0];
#endif

      verbose = 0;
      debug = 0;
      cipher = 0;

      bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);   

      CRYPTO_set_locking_callback(lock_dbg_cb);

      /* enable memory leak checking unless explicitly disabled */
      if (!((getenv("OPENSSL_DEBUG_MEMORY") != NULL) && (0 == strcmp(getenv("OPENSSL_DEBUG_MEMORY"), "off"))))
            {
            CRYPTO_malloc_debug_init();
            CRYPTO_set_mem_debug_options(V_CRYPTO_MDEBUG_ALL);
            }
      else
            {
            /* OPENSSL_DEBUG_MEMORY=off */
            CRYPTO_set_mem_debug_functions(0, 0, 0, 0, 0);
            }
      CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);

      RAND_seed(rnd_seed, sizeof rnd_seed);

      bio_stdout=BIO_new_fp(stdout,BIO_NOCLOSE);

      argc--;
      argv++;

      while (argc >= 1)
            {
            if(!strcmp(*argv,"-F"))
                  {
#ifdef OPENSSL_FIPS
                  fips_mode=1;
#else
                  fprintf(stderr,"not compiled with FIPS support, so exitting without running.\n");
                  exit(0);
#endif
                  }
            else if     (strcmp(*argv,"-server_auth") == 0)
                  server_auth=1;
            else if     (strcmp(*argv,"-client_auth") == 0)
                  client_auth=1;
            else if     (strcmp(*argv,"-v") == 0)
                  verbose=1;
            else if     (strcmp(*argv,"-d") == 0)
                  debug=1;
            else if     (strcmp(*argv,"-reuse") == 0)
                  reuse=1;
            else if     (strcmp(*argv,"-dhe1024") == 0)
                  {
#ifndef OPENSSL_NO_DH
                  dhe1024=1;
#else
                  fprintf(stderr,"ignoring -dhe1024, since I'm compiled without DH\n");
#endif
                  }
            else if     (strcmp(*argv,"-dhe1024dsa") == 0)
                  {
#ifndef OPENSSL_NO_DH
                  dhe1024dsa=1;
#else
                  fprintf(stderr,"ignoring -dhe1024, since I'm compiled without DH\n");
#endif
                  }
            else if     (strcmp(*argv,"-no_dhe") == 0)
                  no_dhe=1;
            else if     (strcmp(*argv,"-ssl2") == 0)
                  ssl2=1;
            else if     (strcmp(*argv,"-tls1") == 0)
                  tls1=1;
            else if     (strcmp(*argv,"-ssl3") == 0)
                  ssl3=1;
            else if     (strncmp(*argv,"-num",4) == 0)
                  {
                  if (--argc < 1) goto bad;
                  number= atoi(*(++argv));
                  if (number == 0) number=1;
                  }
            else if     (strcmp(*argv,"-bytes") == 0)
                  {
                  if (--argc < 1) goto bad;
                  bytes= atol(*(++argv));
                  if (bytes == 0L) bytes=1L;
                  i=strlen(argv[0]);
                  if (argv[0][i-1] == 'k') bytes*=1024L;
                  if (argv[0][i-1] == 'm') bytes*=1024L*1024L;
                  }
            else if     (strcmp(*argv,"-cert") == 0)
                  {
                  if (--argc < 1) goto bad;
                  server_cert= *(++argv);
                  }
            else if     (strcmp(*argv,"-s_cert") == 0)
                  {
                  if (--argc < 1) goto bad;
                  server_cert= *(++argv);
                  }
            else if     (strcmp(*argv,"-key") == 0)
                  {
                  if (--argc < 1) goto bad;
                  server_key= *(++argv);
                  }
            else if     (strcmp(*argv,"-s_key") == 0)
                  {
                  if (--argc < 1) goto bad;
                  server_key= *(++argv);
                  }
            else if     (strcmp(*argv,"-c_cert") == 0)
                  {
                  if (--argc < 1) goto bad;
                  client_cert= *(++argv);
                  }
            else if     (strcmp(*argv,"-c_key") == 0)
                  {
                  if (--argc < 1) goto bad;
                  client_key= *(++argv);
                  }
            else if     (strcmp(*argv,"-cipher") == 0)
                  {
                  if (--argc < 1) goto bad;
                  cipher= *(++argv);
                  }
            else if     (strcmp(*argv,"-CApath") == 0)
                  {
                  if (--argc < 1) goto bad;
                  CApath= *(++argv);
                  }
            else if     (strcmp(*argv,"-CAfile") == 0)
                  {
                  if (--argc < 1) goto bad;
                  CAfile= *(++argv);
                  }
            else if     (strcmp(*argv,"-bio_pair") == 0)
                  {
                  bio_pair = 1;
                  }
            else if     (strcmp(*argv,"-f") == 0)
                  {
                  force = 1;
                  }
            else if     (strcmp(*argv,"-time") == 0)
                  {
                  print_time = 1;
                  }
            else if     (strcmp(*argv,"-zlib") == 0)
                  {
                  comp = COMP_ZLIB;
                  }
            else if     (strcmp(*argv,"-rle") == 0)
                  {
                  comp = COMP_RLE;
                  }
            else if     (strcmp(*argv,"-app_verify") == 0)
                  {
                  app_verify = 1;
                  }
            else
                  {
                  fprintf(stderr,"unknown option %s\n",*argv);
                  badop=1;
                  break;
                  }
            argc--;
            argv++;
            }
      if (badop)
            {
bad:
            sv_usage();
            goto end;
            }


      if (!ssl2 && !ssl3 && !tls1 && number > 1 && !reuse && !force)
            {
            fprintf(stderr, "This case cannot work.  Use -f to perform "
                  "the test anyway (and\n-d to see what happens), "
                  "or add one of -ssl2, -ssl3, -tls1, -reuse\n"
                  "to avoid protocol mismatch.\n");
            EXIT(1);
            }

#ifdef OPENSSL_FIPS
      if(fips_mode)
            {
            if(!FIPS_mode_set(1,path))
                  {
                  ERR_load_crypto_strings();
                  ERR_print_errors(BIO_new_fp(stderr,BIO_NOCLOSE));
                  exit(1);
                  }
            else
                  fprintf(stderr,"*** IN FIPS MODE ***\n");
            }
#endif

      if (print_time)
            {
            if (!bio_pair)
                  {
                  fprintf(stderr, "Using BIO pair (-bio_pair)\n");
                  bio_pair = 1;
                  }
            if (number < 50 && !force)
                  fprintf(stderr, "Warning: For accurate timings, use more connections (e.g. -num 1000)\n");
            }

/*    if (cipher == NULL) cipher=getenv("SSL_CIPHER"); */

      SSL_library_init();
      SSL_load_error_strings();

      if (comp == COMP_ZLIB) cm = COMP_zlib();
      if (comp == COMP_RLE) cm = COMP_rle();
      if (cm != NULL)
            {
            if (cm->type != NID_undef)
                  {
                  if (SSL_COMP_add_compression_method(comp, cm) != 0)
                        {
                        fprintf(stderr,
                              "Failed to add compression method\n");
                        ERR_print_errors_fp(stderr);
                        }
                  }
            else
                  {
                  fprintf(stderr,
                        "Warning: %s compression not supported\n",
                        (comp == COMP_RLE ? "rle" :
                              (comp == COMP_ZLIB ? "zlib" :
                                    "unknown")));
                  ERR_print_errors_fp(stderr);
                  }
            }

#if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
      if (ssl2)
            meth=SSLv2_method();
      else 
      if (tls1)
            meth=TLSv1_method();
      else
      if (ssl3)
            meth=SSLv3_method();
      else
            meth=SSLv23_method();
#else
#ifdef OPENSSL_NO_SSL2
      meth=SSLv3_method();
#else
      meth=SSLv2_method();
#endif
#endif

      c_ctx=SSL_CTX_new(meth);
      s_ctx=SSL_CTX_new(meth);
      if ((c_ctx == NULL) || (s_ctx == NULL))
            {
            ERR_print_errors(bio_err);
            goto end;
            }

      if (cipher != NULL)
            {
            SSL_CTX_set_cipher_list(c_ctx,cipher);
            SSL_CTX_set_cipher_list(s_ctx,cipher);
            }

#ifndef OPENSSL_NO_DH
      if (!no_dhe)
            {
            if (dhe1024dsa)
                  {
                  /* use SSL_OP_SINGLE_DH_USE to avoid small subgroup attacks */
                  SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
                  dh=get_dh1024dsa();
                  }
            else if (dhe1024)
                  dh=get_dh1024();
            else
                  dh=get_dh512();
            SSL_CTX_set_tmp_dh(s_ctx,dh);
            DH_free(dh);
            }
#else
      (void)no_dhe;
#endif

#ifndef OPENSSL_NO_RSA
      SSL_CTX_set_tmp_rsa_callback(s_ctx,tmp_rsa_cb);
#endif

      if (!SSL_CTX_use_certificate_file(s_ctx,server_cert,SSL_FILETYPE_PEM))
            {
            ERR_print_errors(bio_err);
            }
      else if (!SSL_CTX_use_PrivateKey_file(s_ctx,
            (server_key?server_key:server_cert), SSL_FILETYPE_PEM))
            {
            ERR_print_errors(bio_err);
            goto end;
            }

      if (client_auth)
            {
            SSL_CTX_use_certificate_file(c_ctx,client_cert,
                  SSL_FILETYPE_PEM);
            SSL_CTX_use_PrivateKey_file(c_ctx,
                  (client_key?client_key:client_cert),
                  SSL_FILETYPE_PEM);
            }

      if (  (!SSL_CTX_load_verify_locations(s_ctx,CAfile,CApath)) ||
            (!SSL_CTX_set_default_verify_paths(s_ctx)) ||
            (!SSL_CTX_load_verify_locations(c_ctx,CAfile,CApath)) ||
            (!SSL_CTX_set_default_verify_paths(c_ctx)))
            {
            /* fprintf(stderr,"SSL_load_verify_locations\n"); */
            ERR_print_errors(bio_err);
            /* goto end; */
            }

      if (client_auth)
            {
            BIO_printf(bio_err,"client authentication\n");
            SSL_CTX_set_verify(s_ctx,
                  SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT,
                  verify_callback);
            if (app_verify) 
                  {
                  SSL_CTX_set_cert_verify_callback(s_ctx, app_verify_callback, app_verify_arg);
                  }
            }
      if (server_auth)
            {
            BIO_printf(bio_err,"server authentication\n");
            SSL_CTX_set_verify(c_ctx,SSL_VERIFY_PEER,
                  verify_callback);
            if (app_verify) 
                  {
                  SSL_CTX_set_cert_verify_callback(s_ctx, app_verify_callback, app_verify_arg);
                  }
            }
      
      {
            int session_id_context = 0;
            SSL_CTX_set_session_id_context(s_ctx, (void *)&session_id_context, sizeof session_id_context);
      }

      c_ssl=SSL_new(c_ctx);
      s_ssl=SSL_new(s_ctx);

#ifndef OPENSSL_NO_KRB5
      if (c_ssl  &&  c_ssl->kssl_ctx)
                {
                char    localhost[MAXHOSTNAMELEN+2];

            if (gethostname(localhost, sizeof localhost-1) == 0)
                        {
                  localhost[sizeof localhost-1]='\0';
                  if(strlen(localhost) == sizeof localhost-1)
                        {
                        BIO_printf(bio_err,"localhost name too long\n");
                        goto end;
                        }
                  kssl_ctx_setstring(c_ssl->kssl_ctx, KSSL_SERVER,
                                localhost);
                  }
            }
#endif    /* OPENSSL_NO_KRB5  */

      for (i=0; i<number; i++)
            {
            if (!reuse) SSL_set_session(c_ssl,NULL);
            if (bio_pair)
                  ret=doit_biopair(s_ssl,c_ssl,bytes,&s_time,&c_time);
            else
                  ret=doit(s_ssl,c_ssl,bytes);
            }

      if (!verbose)
            {
            print_details(c_ssl, "");
            }
      if ((number > 1) || (bytes > 1L))
            BIO_printf(bio_stdout, "%d handshakes of %ld bytes done\n",number,bytes);
      if (print_time)
            {
#ifdef CLOCKS_PER_SEC
            /* "To determine the time in seconds, the value returned
             * by the clock function should be divided by the value
             * of the macro CLOCKS_PER_SEC."
             *                                       -- ISO/IEC 9899 */
            BIO_printf(bio_stdout, "Approximate total server time: %6.2f s\n"
                  "Approximate total client time: %6.2f s\n",
                  (double)s_time/CLOCKS_PER_SEC,
                  (double)c_time/CLOCKS_PER_SEC);
#else
            /* "`CLOCKS_PER_SEC' undeclared (first use this function)"
             *                            -- cc on NeXTstep/OpenStep */
            BIO_printf(bio_stdout,
                  "Approximate total server time: %6.2f units\n"
                  "Approximate total client time: %6.2f units\n",
                  (double)s_time,
                  (double)c_time);
#endif
            }

      SSL_free(s_ssl);
      SSL_free(c_ssl);

end:
      if (s_ctx != NULL) SSL_CTX_free(s_ctx);
      if (c_ctx != NULL) SSL_CTX_free(c_ctx);

      if (bio_stdout != NULL) BIO_free(bio_stdout);

#ifndef OPENSSL_NO_RSA
      free_tmp_rsa();
#endif
#ifndef OPENSSL_NO_ENGINE
      ENGINE_cleanup();
#endif
      CRYPTO_cleanup_all_ex_data();
      ERR_free_strings();
      ERR_remove_state(0);
      EVP_cleanup();
      CRYPTO_mem_leaks(bio_err);
      if (bio_err != NULL) BIO_free(bio_err);
      EXIT(ret);
      }

int doit_biopair(SSL *s_ssl, SSL *c_ssl, long count,
      clock_t *s_time, clock_t *c_time)
      {
      long cw_num = count, cr_num = count, sw_num = count, sr_num = count;
      BIO *s_ssl_bio = NULL, *c_ssl_bio = NULL;
      BIO *server = NULL, *server_io = NULL, *client = NULL, *client_io = NULL;
      int ret = 1;
      
      size_t bufsiz = 256; /* small buffer for testing */

      if (!BIO_new_bio_pair(&server, bufsiz, &server_io, bufsiz))
            goto err;
      if (!BIO_new_bio_pair(&client, bufsiz, &client_io, bufsiz))
            goto err;
      
      s_ssl_bio = BIO_new(BIO_f_ssl());
      if (!s_ssl_bio)
            goto err;

      c_ssl_bio = BIO_new(BIO_f_ssl());
      if (!c_ssl_bio)
            goto err;

      SSL_set_connect_state(c_ssl);
      SSL_set_bio(c_ssl, client, client);
      (void)BIO_set_ssl(c_ssl_bio, c_ssl, BIO_NOCLOSE);

      SSL_set_accept_state(s_ssl);
      SSL_set_bio(s_ssl, server, server);
      (void)BIO_set_ssl(s_ssl_bio, s_ssl, BIO_NOCLOSE);

      do
            {
            /* c_ssl_bio:          SSL filter BIO
             *
             * client:             pseudo-I/O for SSL library
             *
             * client_io:          client's SSL communication; usually to be
             *                     relayed over some I/O facility, but in this
             *                     test program, we're the server, too:
             *
             * server_io:          server's SSL communication
             *
             * server:             pseudo-I/O for SSL library
             *
             * s_ssl_bio:          SSL filter BIO
             *
             * The client and the server each employ a "BIO pair":
             * client + client_io, server + server_io.
             * BIO pairs are symmetric.  A BIO pair behaves similar
             * to a non-blocking socketpair (but both endpoints must
             * be handled by the same thread).
             * [Here we could connect client and server to the ends
             * of a single BIO pair, but then this code would be less
             * suitable as an example for BIO pairs in general.]
             *
             * Useful functions for querying the state of BIO pair endpoints:
             *
             * BIO_ctrl_pending(bio)              number of bytes we can read now
             * BIO_ctrl_get_read_request(bio)     number of bytes needed to fulfil
             *                                      other side's read attempt
             * BIO_ctrl_get_write_guarantee(bio)   number of bytes we can write now
             *
             * ..._read_request is never more than ..._write_guarantee;
             * it depends on the application which one you should use.
             */

            /* We have non-blocking behaviour throughout this test program, but
             * can be sure that there is *some* progress in each iteration; so
             * we don't have to worry about ..._SHOULD_READ or ..._SHOULD_WRITE
             * -- we just try everything in each iteration
             */

                  {
                  /* CLIENT */
            
                  MS_STATIC char cbuf[1024*8];
                  int i, r;
                  clock_t c_clock = clock();

                  memset(cbuf, 0, sizeof(cbuf));

                  if (debug)
                        if (SSL_in_init(c_ssl))
                              printf("client waiting in SSL_connect - %s\n",
                                    SSL_state_string_long(c_ssl));

                  if (cw_num > 0)
                        {
                        /* Write to server. */
                        
                        if (cw_num > (long)sizeof cbuf)
                              i = sizeof cbuf;
                        else
                              i = (int)cw_num;
                        r = BIO_write(c_ssl_bio, cbuf, i);
                        if (r < 0)
                              {
                              if (!BIO_should_retry(c_ssl_bio))
                                    {
                                    fprintf(stderr,"ERROR in CLIENT\n");
                                    goto err;
                                    }
                              /* BIO_should_retry(...) can just be ignored here.
                               * The library expects us to call BIO_write with
                               * the same arguments again, and that's what we will
                               * do in the next iteration. */
                              }
                        else if (r == 0)
                              {
                              fprintf(stderr,"SSL CLIENT STARTUP FAILED\n");
                              goto err;
                              }
                        else
                              {
                              if (debug)
                                    printf("client wrote %d\n", r);
                              cw_num -= r;                        
                              }
                        }

                  if (cr_num > 0)
                        {
                        /* Read from server. */

                        r = BIO_read(c_ssl_bio, cbuf, sizeof(cbuf));
                        if (r < 0)
                              {
                              if (!BIO_should_retry(c_ssl_bio))
                                    {
                                    fprintf(stderr,"ERROR in CLIENT\n");
                                    goto err;
                                    }
                              /* Again, "BIO_should_retry" can be ignored. */
                              }
                        else if (r == 0)
                              {
                              fprintf(stderr,"SSL CLIENT STARTUP FAILED\n");
                              goto err;
                              }
                        else
                              {
                              if (debug)
                                    printf("client read %d\n", r);
                              cr_num -= r;
                              }
                        }

                  /* c_time and s_time increments will typically be very small
                   * (depending on machine speed and clock tick intervals),
                   * but sampling over a large number of connections should
                   * result in fairly accurate figures.  We cannot guarantee
                   * a lot, however -- if each connection lasts for exactly
                   * one clock tick, it will be counted only for the client
                   * or only for the server or even not at all.
                   */
                  *c_time += (clock() - c_clock);
                  }

                  {
                  /* SERVER */
            
                  MS_STATIC char sbuf[1024*8];
                  int i, r;
                  clock_t s_clock = clock();

                  memset(sbuf, 0, sizeof(sbuf));

                  if (debug)
                        if (SSL_in_init(s_ssl))
                              printf("server waiting in SSL_accept - %s\n",
                                    SSL_state_string_long(s_ssl));

                  if (sw_num > 0)
                        {
                        /* Write to client. */
                        
                        if (sw_num > (long)sizeof sbuf)
                              i = sizeof sbuf;
                        else
                              i = (int)sw_num;
                        r = BIO_write(s_ssl_bio, sbuf, i);
                        if (r < 0)
                              {
                              if (!BIO_should_retry(s_ssl_bio))
                                    {
                                    fprintf(stderr,"ERROR in SERVER\n");
                                    goto err;
                                    }
                              /* Ignore "BIO_should_retry". */
                              }
                        else if (r == 0)
                              {
                              fprintf(stderr,"SSL SERVER STARTUP FAILED\n");
                              goto err;
                              }
                        else
                              {
                              if (debug)
                                    printf("server wrote %d\n", r);
                              sw_num -= r;                        
                              }
                        }

                  if (sr_num > 0)
                        {
                        /* Read from client. */

                        r = BIO_read(s_ssl_bio, sbuf, sizeof(sbuf));
                        if (r < 0)
                              {
                              if (!BIO_should_retry(s_ssl_bio))
                                    {
                                    fprintf(stderr,"ERROR in SERVER\n");
                                    goto err;
                                    }
                              /* blah, blah */
                              }
                        else if (r == 0)
                              {
                              fprintf(stderr,"SSL SERVER STARTUP FAILED\n");
                              goto err;
                              }
                        else
                              {
                              if (debug)
                                    printf("server read %d\n", r);
                              sr_num -= r;
                              }
                        }

                  *s_time += (clock() - s_clock);
                  }
                  
                  {
                  /* "I/O" BETWEEN CLIENT AND SERVER. */

                  size_t r1, r2;
                  BIO *io1 = server_io, *io2 = client_io;
                  /* we use the non-copying interface for io1
                   * and the standard BIO_write/BIO_read interface for io2
                   */
                  
                  static int prev_progress = 1;
                  int progress = 0;
                  
                  /* io1 to io2 */
                  do
                        {
                        size_t num;
                        int r;

                        r1 = BIO_ctrl_pending(io1);
                        r2 = BIO_ctrl_get_write_guarantee(io2);

                        num = r1;
                        if (r2 < num)
                              num = r2;
                        if (num)
                              {
                              char *dataptr;

                              if (INT_MAX < num) /* yeah, right */
                                    num = INT_MAX;
                              
                              r = BIO_nread(io1, &dataptr, (int)num);
                              assert(r > 0);
                              assert(r <= (int)num);
                              /* possibly r < num (non-contiguous data) */
                              num = r;
                              r = BIO_write(io2, dataptr, (int)num);
                              if (r != (int)num) /* can't happen */
                                    {
                                    fprintf(stderr, "ERROR: BIO_write could not write "
                                          "BIO_ctrl_get_write_guarantee() bytes");
                                    goto err;
                                    }
                              progress = 1;

                              if (debug)
                                    printf((io1 == client_io) ?
                                          "C->S relaying: %d bytes\n" :
                                          "S->C relaying: %d bytes\n",
                                          (int)num);
                              }
                        }
                  while (r1 && r2);

                  /* io2 to io1 */
                  {
                        size_t num;
                        int r;

                        r1 = BIO_ctrl_pending(io2);
                        r2 = BIO_ctrl_get_read_request(io1);
                        /* here we could use ..._get_write_guarantee instead of
                         * ..._get_read_request, but by using the latter
                         * we test restartability of the SSL implementation
                         * more thoroughly */
                        num = r1;
                        if (r2 < num)
                              num = r2;
                        if (num)
                              {
                              char *dataptr;
                              
                              if (INT_MAX < num)
                                    num = INT_MAX;

                              if (num > 1)
                                    --num; /* test restartability even more thoroughly */
                              
                              r = BIO_nwrite0(io1, &dataptr);
                              assert(r > 0);
                              if (r < (int)num)
                                    num = r;
                              r = BIO_read(io2, dataptr, (int)num);
                              if (r != (int)num) /* can't happen */
                                    {
                                    fprintf(stderr, "ERROR: BIO_read could not read "
                                          "BIO_ctrl_pending() bytes");
                                    goto err;
                                    }
                              progress = 1;
                              r = BIO_nwrite(io1, &dataptr, (int)num);
                              if (r != (int)num) /* can't happen */
                                    {
                                    fprintf(stderr, "ERROR: BIO_nwrite() did not accept "
                                          "BIO_nwrite0() bytes");
                                    goto err;
                                    }
                              
                              if (debug)
                                    printf((io2 == client_io) ?
                                          "C->S relaying: %d bytes\n" :
                                          "S->C relaying: %d bytes\n",
                                          (int)num);
                              }
                  } /* no loop, BIO_ctrl_get_read_request now returns 0 anyway */

                  if (!progress && !prev_progress)
                        if (cw_num > 0 || cr_num > 0 || sw_num > 0 || sr_num > 0)
                              {
                              fprintf(stderr, "ERROR: got stuck\n");
                              if (strcmp("SSLv2", SSL_get_version(c_ssl)) == 0)
                                    {
                                    fprintf(stderr, "This can happen for SSL2 because "
                                          "CLIENT-FINISHED and SERVER-VERIFY are written \n"
                                          "concurrently ...");
                                    if (strncmp("2SCF", SSL_state_string(c_ssl), 4) == 0
                                          && strncmp("2SSV", SSL_state_string(s_ssl), 4) == 0)
                                          {
                                          fprintf(stderr, " ok.\n");
                                          goto end;
                                          }
                                    }
                              fprintf(stderr, " ERROR.\n");
                              goto err;
                              }
                  prev_progress = progress;
                  }
            }
      while (cw_num > 0 || cr_num > 0 || sw_num > 0 || sr_num > 0);

      if (verbose)
            print_details(c_ssl, "DONE via BIO pair: ");
end:
      ret = 0;

 err:
      ERR_print_errors(bio_err);
      
      if (server)
            BIO_free(server);
      if (server_io)
            BIO_free(server_io);
      if (client)
            BIO_free(client);
      if (client_io)
            BIO_free(client_io);
      if (s_ssl_bio)
            BIO_free(s_ssl_bio);
      if (c_ssl_bio)
            BIO_free(c_ssl_bio);

      return ret;
      }


#define W_READ    1
#define W_WRITE   2
#define C_DONE    1
#define S_DONE    2

int doit(SSL *s_ssl, SSL *c_ssl, long count)
      {
      MS_STATIC char cbuf[1024*8],sbuf[1024*8];
      long cw_num=count,cr_num=count;
      long sw_num=count,sr_num=count;
      int ret=1;
      BIO *c_to_s=NULL;
      BIO *s_to_c=NULL;
      BIO *c_bio=NULL;
      BIO *s_bio=NULL;
      int c_r,c_w,s_r,s_w;
      int c_want,s_want;
      int i,j;
      int done=0;
      int c_write,s_write;
      int do_server=0,do_client=0;

      memset(cbuf,0,sizeof(cbuf));
      memset(sbuf,0,sizeof(sbuf));

      c_to_s=BIO_new(BIO_s_mem());
      s_to_c=BIO_new(BIO_s_mem());
      if ((s_to_c == NULL) || (c_to_s == NULL))
            {
            ERR_print_errors(bio_err);
            goto err;
            }

      c_bio=BIO_new(BIO_f_ssl());
      s_bio=BIO_new(BIO_f_ssl());
      if ((c_bio == NULL) || (s_bio == NULL))
            {
            ERR_print_errors(bio_err);
            goto err;
            }

      SSL_set_connect_state(c_ssl);
      SSL_set_bio(c_ssl,s_to_c,c_to_s);
      BIO_set_ssl(c_bio,c_ssl,BIO_NOCLOSE);

      SSL_set_accept_state(s_ssl);
      SSL_set_bio(s_ssl,c_to_s,s_to_c);
      BIO_set_ssl(s_bio,s_ssl,BIO_NOCLOSE);

      c_r=0; s_r=1;
      c_w=1; s_w=0;
      c_want=W_WRITE;
      s_want=0;
      c_write=1,s_write=0;

      /* We can always do writes */
      for (;;)
            {
            do_server=0;
            do_client=0;

            i=(int)BIO_pending(s_bio);
            if ((i && s_r) || s_w) do_server=1;

            i=(int)BIO_pending(c_bio);
            if ((i && c_r) || c_w) do_client=1;

            if (do_server && debug)
                  {
                  if (SSL_in_init(s_ssl))
                        printf("server waiting in SSL_accept - %s\n",
                              SSL_state_string_long(s_ssl));
/*                else if (s_write)
                        printf("server:SSL_write()\n");
                  else
                        printf("server:SSL_read()\n"); */
                  }

            if (do_client && debug)
                  {
                  if (SSL_in_init(c_ssl))
                        printf("client waiting in SSL_connect - %s\n",
                              SSL_state_string_long(c_ssl));
/*                else if (c_write)
                        printf("client:SSL_write()\n");
                  else
                        printf("client:SSL_read()\n"); */
                  }

            if (!do_client && !do_server)
                  {
                  fprintf(stdout,"ERROR IN STARTUP\n");
                  ERR_print_errors(bio_err);
                  break;
                  }
            if (do_client && !(done & C_DONE))
                  {
                  if (c_write)
                        {
                        j=(cw_num > (long)sizeof(cbuf))
                              ?sizeof(cbuf):(int)cw_num;
                        i=BIO_write(c_bio,cbuf,j);
                        if (i < 0)
                              {
                              c_r=0;
                              c_w=0;
                              if (BIO_should_retry(c_bio))
                                    {
                                    if (BIO_should_read(c_bio))
                                          c_r=1;
                                    if (BIO_should_write(c_bio))
                                          c_w=1;
                                    }
                              else
                                    {
                                    fprintf(stderr,"ERROR in CLIENT\n");
                                    ERR_print_errors(bio_err);
                                    goto err;
                                    }
                              }
                        else if (i == 0)
                              {
                              fprintf(stderr,"SSL CLIENT STARTUP FAILED\n");
                              goto err;
                              }
                        else
                              {
                              if (debug)
                                    printf("client wrote %d\n",i);
                              /* ok */
                              s_r=1;
                              c_write=0;
                              cw_num-=i;
                              }
                        }
                  else
                        {
                        i=BIO_read(c_bio,cbuf,sizeof(cbuf));
                        if (i < 0)
                              {
                              c_r=0;
                              c_w=0;
                              if (BIO_should_retry(c_bio))
                                    {
                                    if (BIO_should_read(c_bio))
                                          c_r=1;
                                    if (BIO_should_write(c_bio))
                                          c_w=1;
                                    }
                              else
                                    {
                                    fprintf(stderr,"ERROR in CLIENT\n");
                                    ERR_print_errors(bio_err);
                                    goto err;
                                    }
                              }
                        else if (i == 0)
                              {
                              fprintf(stderr,"SSL CLIENT STARTUP FAILED\n");
                              goto err;
                              }
                        else
                              {
                              if (debug)
                                    printf("client read %d\n",i);
                              cr_num-=i;
                              if (sw_num > 0)
                                    {
                                    s_write=1;
                                    s_w=1;
                                    }
                              if (cr_num <= 0)
                                    {
                                    s_write=1;
                                    s_w=1;
                                    done=S_DONE|C_DONE;
                                    }
                              }
                        }
                  }

            if (do_server && !(done & S_DONE))
                  {
                  if (!s_write)
                        {
                        i=BIO_read(s_bio,sbuf,sizeof(cbuf));
                        if (i < 0)
                              {
                              s_r=0;
                              s_w=0;
                              if (BIO_should_retry(s_bio))
                                    {
                                    if (BIO_should_read(s_bio))
                                          s_r=1;
                                    if (BIO_should_write(s_bio))
                                          s_w=1;
                                    }
                              else
                                    {
                                    fprintf(stderr,"ERROR in SERVER\n");
                                    ERR_print_errors(bio_err);
                                    goto err;
                                    }
                              }
                        else if (i == 0)
                              {
                              ERR_print_errors(bio_err);
                              fprintf(stderr,"SSL SERVER STARTUP FAILED in SSL_read\n");
                              goto err;
                              }
                        else
                              {
                              if (debug)
                                    printf("server read %d\n",i);
                              sr_num-=i;
                              if (cw_num > 0)
                                    {
                                    c_write=1;
                                    c_w=1;
                                    }
                              if (sr_num <= 0)
                                    {
                                    s_write=1;
                                    s_w=1;
                                    c_write=0;
                                    }
                              }
                        }
                  else
                        {
                        j=(sw_num > (long)sizeof(sbuf))?
                              sizeof(sbuf):(int)sw_num;
                        i=BIO_write(s_bio,sbuf,j);
                        if (i < 0)
                              {
                              s_r=0;
                              s_w=0;
                              if (BIO_should_retry(s_bio))
                                    {
                                    if (BIO_should_read(s_bio))
                                          s_r=1;
                                    if (BIO_should_write(s_bio))
                                          s_w=1;
                                    }
                              else
                                    {
                                    fprintf(stderr,"ERROR in SERVER\n");
                                    ERR_print_errors(bio_err);
                                    goto err;
                                    }
                              }
                        else if (i == 0)
                              {
                              ERR_print_errors(bio_err);
                              fprintf(stderr,"SSL SERVER STARTUP FAILED in SSL_write\n");
                              goto err;
                              }
                        else
                              {
                              if (debug)
                                    printf("server wrote %d\n",i);
                              sw_num-=i;
                              s_write=0;
                              c_r=1;
                              if (sw_num <= 0)
                                    done|=S_DONE;
                              }
                        }
                  }

            if ((done & S_DONE) && (done & C_DONE)) break;
            }

      if (verbose)
            print_details(c_ssl, "DONE: ");
      ret=0;
err:
      /* We have to set the BIO's to NULL otherwise they will be
       * OPENSSL_free()ed twice.  Once when th s_ssl is SSL_free()ed and
       * again when c_ssl is SSL_free()ed.
       * This is a hack required because s_ssl and c_ssl are sharing the same
       * BIO structure and SSL_set_bio() and SSL_free() automatically
       * BIO_free non NULL entries.
       * You should not normally do this or be required to do this */
      if (s_ssl != NULL)
            {
            s_ssl->rbio=NULL;
            s_ssl->wbio=NULL;
            }
      if (c_ssl != NULL)
            {
            c_ssl->rbio=NULL;
            c_ssl->wbio=NULL;
            }

      if (c_to_s != NULL) BIO_free(c_to_s);
      if (s_to_c != NULL) BIO_free(s_to_c);
      if (c_bio != NULL) BIO_free_all(c_bio);
      if (s_bio != NULL) BIO_free_all(s_bio);
      return(ret);
      }

static int MS_CALLBACK verify_callback(int ok, X509_STORE_CTX *ctx)
      {
      char *s,buf[256];

      s=X509_NAME_oneline(X509_get_subject_name(ctx->current_cert),buf,
                      sizeof buf);
      if (s != NULL)
            {
            if (ok)
                  fprintf(stderr,"depth=%d %s\n",ctx->error_depth,buf);
            else
                  fprintf(stderr,"depth=%d error=%d %s\n",
                        ctx->error_depth,ctx->error,buf);
            }

      if (ok == 0)
            {
            switch (ctx->error)
                  {
            case X509_V_ERR_CERT_NOT_YET_VALID:
            case X509_V_ERR_CERT_HAS_EXPIRED:
            case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
                  ok=1;
                  }
            }

      return(ok);
      }

static int MS_CALLBACK app_verify_callback(X509_STORE_CTX *ctx, void *arg)
      {
      char *s = NULL,buf[256];
      int ok=1;

      fprintf(stderr, "In app_verify_callback, allowing cert. ");
      fprintf(stderr, "Arg is: %s\n", (char *)arg);
      fprintf(stderr, "Finished printing do we have a context? 0x%x a cert? 0x%x\n",
                  (unsigned int)ctx, (unsigned int)ctx->cert);
      if (ctx->cert)
            s=X509_NAME_oneline(X509_get_subject_name(ctx->cert),buf,256);
      if (s != NULL)
            {
                  fprintf(stderr,"cert depth=%d %s\n",ctx->error_depth,buf);
            }

      return(ok);
      }

#ifndef OPENSSL_NO_RSA
static RSA *rsa_tmp=NULL;

static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
      {
      if (rsa_tmp == NULL)
            {
            BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
            (void)BIO_flush(bio_err);
            rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
            BIO_printf(bio_err,"\n");
            (void)BIO_flush(bio_err);
            }
      return(rsa_tmp);
      }

static void free_tmp_rsa(void)
      {
      if (rsa_tmp != NULL)
            {
            RSA_free(rsa_tmp);
            rsa_tmp = NULL;
            }
      }
#endif

#ifndef OPENSSL_NO_DH
/* These DH parameters have been generated as follows:
 *    $ openssl dhparam -C -noout 512
 *    $ openssl dhparam -C -noout 1024
 *    $ openssl dhparam -C -noout -dsaparam 1024
 * (The third function has been renamed to avoid name conflicts.)
 */
static DH *get_dh512()
      {
      static unsigned char dh512_p[]={
            0xCB,0xC8,0xE1,0x86,0xD0,0x1F,0x94,0x17,0xA6,0x99,0xF0,0xC6,
            0x1F,0x0D,0xAC,0xB6,0x25,0x3E,0x06,0x39,0xCA,0x72,0x04,0xB0,
            0x6E,0xDA,0xC0,0x61,0xE6,0x7A,0x77,0x25,0xE8,0x3B,0xB9,0x5F,
            0x9A,0xB6,0xB5,0xFE,0x99,0x0B,0xA1,0x93,0x4E,0x35,0x33,0xB8,
            0xE1,0xF1,0x13,0x4F,0x59,0x1A,0xD2,0x57,0xC0,0x26,0x21,0x33,
            0x02,0xC5,0xAE,0x23,
            };
      static unsigned char dh512_g[]={
            0x02,
            };
      DH *dh;

      if ((dh=DH_new()) == NULL) return(NULL);
      dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
      dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
      if ((dh->p == NULL) || (dh->g == NULL))
            { DH_free(dh); return(NULL); }
      return(dh);
      }

static DH *get_dh1024()
      {
      static unsigned char dh1024_p[]={
            0xF8,0x81,0x89,0x7D,0x14,0x24,0xC5,0xD1,0xE6,0xF7,0xBF,0x3A,
            0xE4,0x90,0xF4,0xFC,0x73,0xFB,0x34,0xB5,0xFA,0x4C,0x56,0xA2,
            0xEA,0xA7,0xE9,0xC0,0xC0,0xCE,0x89,0xE1,0xFA,0x63,0x3F,0xB0,
            0x6B,0x32,0x66,0xF1,0xD1,0x7B,0xB0,0x00,0x8F,0xCA,0x87,0xC2,
            0xAE,0x98,0x89,0x26,0x17,0xC2,0x05,0xD2,0xEC,0x08,0xD0,0x8C,
            0xFF,0x17,0x52,0x8C,0xC5,0x07,0x93,0x03,0xB1,0xF6,0x2F,0xB8,
            0x1C,0x52,0x47,0x27,0x1B,0xDB,0xD1,0x8D,0x9D,0x69,0x1D,0x52,
            0x4B,0x32,0x81,0xAA,0x7F,0x00,0xC8,0xDC,0xE6,0xD9,0xCC,0xC1,
            0x11,0x2D,0x37,0x34,0x6C,0xEA,0x02,0x97,0x4B,0x0E,0xBB,0xB1,
            0x71,0x33,0x09,0x15,0xFD,0xDD,0x23,0x87,0x07,0x5E,0x89,0xAB,
            0x6B,0x7C,0x5F,0xEC,0xA6,0x24,0xDC,0x53,
            };
      static unsigned char dh1024_g[]={
            0x02,
            };
      DH *dh;

      if ((dh=DH_new()) == NULL) return(NULL);
      dh->p=BN_bin2bn(dh1024_p,sizeof(dh1024_p),NULL);
      dh->g=BN_bin2bn(dh1024_g,sizeof(dh1024_g),NULL);
      if ((dh->p == NULL) || (dh->g == NULL))
            { DH_free(dh); return(NULL); }
      return(dh);
      }

static DH *get_dh1024dsa()
      {
      static unsigned char dh1024_p[]={
            0xC8,0x00,0xF7,0x08,0x07,0x89,0x4D,0x90,0x53,0xF3,0xD5,0x00,
            0x21,0x1B,0xF7,0x31,0xA6,0xA2,0xDA,0x23,0x9A,0xC7,0x87,0x19,
            0x3B,0x47,0xB6,0x8C,0x04,0x6F,0xFF,0xC6,0x9B,0xB8,0x65,0xD2,
            0xC2,0x5F,0x31,0x83,0x4A,0xA7,0x5F,0x2F,0x88,0x38,0xB6,0x55,
            0xCF,0xD9,0x87,0x6D,0x6F,0x9F,0xDA,0xAC,0xA6,0x48,0xAF,0xFC,
            0x33,0x84,0x37,0x5B,0x82,0x4A,0x31,0x5D,0xE7,0xBD,0x52,0x97,
            0xA1,0x77,0xBF,0x10,0x9E,0x37,0xEA,0x64,0xFA,0xCA,0x28,0x8D,
            0x9D,0x3B,0xD2,0x6E,0x09,0x5C,0x68,0xC7,0x45,0x90,0xFD,0xBB,
            0x70,0xC9,0x3A,0xBB,0xDF,0xD4,0x21,0x0F,0xC4,0x6A,0x3C,0xF6,
            0x61,0xCF,0x3F,0xD6,0x13,0xF1,0x5F,0xBC,0xCF,0xBC,0x26,0x9E,
            0xBC,0x0B,0xBD,0xAB,0x5D,0xC9,0x54,0x39,
            };
      static unsigned char dh1024_g[]={
            0x3B,0x40,0x86,0xE7,0xF3,0x6C,0xDE,0x67,0x1C,0xCC,0x80,0x05,
            0x5A,0xDF,0xFE,0xBD,0x20,0x27,0x74,0x6C,0x24,0xC9,0x03,0xF3,
            0xE1,0x8D,0xC3,0x7D,0x98,0x27,0x40,0x08,0xB8,0x8C,0x6A,0xE9,
            0xBB,0x1A,0x3A,0xD6,0x86,0x83,0x5E,0x72,0x41,0xCE,0x85,0x3C,
            0xD2,0xB3,0xFC,0x13,0xCE,0x37,0x81,0x9E,0x4C,0x1C,0x7B,0x65,
            0xD3,0xE6,0xA6,0x00,0xF5,0x5A,0x95,0x43,0x5E,0x81,0xCF,0x60,
            0xA2,0x23,0xFC,0x36,0xA7,0x5D,0x7A,0x4C,0x06,0x91,0x6E,0xF6,
            0x57,0xEE,0x36,0xCB,0x06,0xEA,0xF5,0x3D,0x95,0x49,0xCB,0xA7,
            0xDD,0x81,0xDF,0x80,0x09,0x4A,0x97,0x4D,0xA8,0x22,0x72,0xA1,
            0x7F,0xC4,0x70,0x56,0x70,0xE8,0x20,0x10,0x18,0x8F,0x2E,0x60,
            0x07,0xE7,0x68,0x1A,0x82,0x5D,0x32,0xA2,
            };
      DH *dh;

      if ((dh=DH_new()) == NULL) return(NULL);
      dh->p=BN_bin2bn(dh1024_p,sizeof(dh1024_p),NULL);
      dh->g=BN_bin2bn(dh1024_g,sizeof(dh1024_g),NULL);
      if ((dh->p == NULL) || (dh->g == NULL))
            { DH_free(dh); return(NULL); }
      dh->length = 160;
      return(dh);
      }
#endif

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