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s_client.c

/* apps/s_client.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) 1998-2001 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).
 *
 */

#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <openssl/e_os2.h>
#ifdef OPENSSL_NO_STDIO
#define APPS_WIN16
#endif

/* With IPv6, it looks like Digital has mixed up the proper order of
   recursive header file inclusion, resulting in the compiler complaining
   that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
   is needed to have fileno() declared correctly...  So let's define u_int */
#if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
#define __U_INT
typedef unsigned int u_int;
#endif

#define USE_SOCKETS
#include "apps.h"
#include <openssl/x509.h>
#include <openssl/ssl.h>
#include <openssl/err.h>
#include <openssl/pem.h>
#include <openssl/rand.h>
#include "s_apps.h"
#include "timeouts.h"

#ifdef OPENSSL_SYS_WINCE
/* Windows CE incorrectly defines fileno as returning void*, so to avoid problems below... */
#ifdef fileno
#undef fileno
#endif
#define fileno(a) (int)_fileno(a)
#endif


#if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
/* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
#undef FIONBIO
#endif

#undef PROG
#define PROG      s_client_main

/*#define SSL_HOST_NAME "www.netscape.com" */
/*#define SSL_HOST_NAME "193.118.187.102" */
#define SSL_HOST_NAME   "localhost"

/*#define TEST_CERT "client.pem" */ /* no default cert. */

#undef BUFSIZZ
#define BUFSIZZ 1024*8

extern int verify_depth;
extern int verify_error;

#ifdef FIONBIO
static int c_nbio=0;
#endif
static int c_Pause=0;
static int c_debug=0;
#ifndef OPENSSL_NO_TLSEXT
static int c_tlsextdebug=0;
#endif
static int c_msg=0;
static int c_showcerts=0;

static void sc_usage(void);
static void print_stuff(BIO *berr,SSL *con,int full);
static BIO *bio_c_out=NULL;
static int c_quiet=0;
static int c_ign_eof=0;

static void sc_usage(void)
      {
      BIO_printf(bio_err,"usage: s_client args\n");
      BIO_printf(bio_err,"\n");
      BIO_printf(bio_err," -host host     - use -connect instead\n");
      BIO_printf(bio_err," -port port     - use -connect instead\n");
      BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);

      BIO_printf(bio_err," -verify depth - turn on peer certificate verification\n");
      BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
      BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
      BIO_printf(bio_err," -key arg      - Private key file to use, in cert file if\n");
      BIO_printf(bio_err,"                 not specified but cert file is.\n");
      BIO_printf(bio_err," -keyform arg  - key format (PEM or DER) PEM default\n");
      BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
      BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
      BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
      BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
      BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
      BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
      BIO_printf(bio_err," -debug        - extra output\n");
#ifdef WATT32
      BIO_printf(bio_err," -wdebug       - WATT-32 tcp debugging\n");
#endif
      BIO_printf(bio_err," -msg          - Show protocol messages\n");
      BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
      BIO_printf(bio_err," -state        - print the 'ssl' states\n");
#ifdef FIONBIO
      BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
#endif
      BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
      BIO_printf(bio_err," -quiet        - no s_client output\n");
      BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
      BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
      BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
      BIO_printf(bio_err," -tls1         - just use TLSv1\n");
      BIO_printf(bio_err," -dtls1        - just use DTLSv1\n");    
      BIO_printf(bio_err," -mtu          - set the MTU\n");
      BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
      BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
      BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
      BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
      BIO_printf(bio_err,"                 command to see what is available\n");
      BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
      BIO_printf(bio_err,"                 for those protocols that support it, where\n");
      BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
      BIO_printf(bio_err,"                 only \"smtp\", \"pop3\", \"imap\", and \"ftp\" are supported.\n");
#ifndef OPENSSL_NO_ENGINE
      BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
#endif
      BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
      BIO_printf(bio_err," -sess_out arg - file to write SSL session to\n");
      BIO_printf(bio_err," -sess_in arg  - file to read SSL session from\n");
#ifndef OPENSSL_NO_TLSEXT
      BIO_printf(bio_err," -servername host  - Set TLS extension servername in ClientHello\n");
      BIO_printf(bio_err," -tlsextdebug      - hex dump of all TLS extensions received\n");
      BIO_printf(bio_err," -no_ticket        - disable use of RFC4507bis session tickets\n");
#endif
      }

#ifndef OPENSSL_NO_TLSEXT

/* This is a context that we pass to callbacks */
typedef struct tlsextctx_st {
   BIO * biodebug;
   int ack;
} tlsextctx;


static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
      {
      tlsextctx * p = (tlsextctx *) arg;
      const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
      if (SSL_get_servername_type(s) != -1) 
              p->ack = !SSL_session_reused(s) && hn != NULL;
      else 
            BIO_printf(bio_err,"Can't use SSL_get_servername\n");
      
      return SSL_TLSEXT_ERR_OK;
      }
#endif
enum
{
      PROTO_OFF   = 0,
      PROTO_SMTP,
      PROTO_POP3,
      PROTO_IMAP,
      PROTO_FTP
};

int MAIN(int, char **);

int MAIN(int argc, char **argv)
      {
      int off=0;
      SSL *con=NULL,*con2=NULL;
      X509_STORE *store = NULL;
      int s,k,width,state=0;
      char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
      int cbuf_len,cbuf_off;
      int sbuf_len,sbuf_off;
      fd_set readfds,writefds;
      short port=PORT;
      int full_log=1;
      char *host=SSL_HOST_NAME;
      char *cert_file=NULL,*key_file=NULL;
      int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
      char *passarg = NULL, *pass = NULL;
      X509 *cert = NULL;
      EVP_PKEY *key = NULL;
      char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
      int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
      int crlf=0;
      int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
      SSL_CTX *ctx=NULL;
      int ret=1,in_init=1,i,nbio_test=0;
      int starttls_proto = PROTO_OFF;
      int prexit = 0, vflags = 0;
      SSL_METHOD *meth=NULL;
#ifdef sock_type
#undef sock_type
#endif
      int sock_type=SOCK_STREAM;
      BIO *sbio;
      char *inrand=NULL;
      int mbuf_len=0;
#ifndef OPENSSL_NO_ENGINE
      char *engine_id=NULL;
      ENGINE *e=NULL;
#endif
#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
      struct timeval tv;
#endif

#ifndef OPENSSL_NO_TLSEXT
      char *servername = NULL; 
        tlsextctx tlsextcbp = 
        {NULL,0};
#endif
      char *sess_in = NULL;
      char *sess_out = NULL;
      struct sockaddr peer;
      int peerlen = sizeof(peer);
      int enable_timeouts = 0 ;
      long mtu = 0;

#if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
      meth=SSLv23_client_method();
#elif !defined(OPENSSL_NO_SSL3)
      meth=SSLv3_client_method();
#elif !defined(OPENSSL_NO_SSL2)
      meth=SSLv2_client_method();
#endif

      apps_startup();
      c_Pause=0;
      c_quiet=0;
      c_ign_eof=0;
      c_debug=0;
      c_msg=0;
      c_showcerts=0;

      if (bio_err == NULL)
            bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);

      if (!load_config(bio_err, NULL))
            goto end;

      if (  ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
            ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
            ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
            {
            BIO_printf(bio_err,"out of memory\n");
            goto end;
            }

      verify_depth=0;
      verify_error=X509_V_OK;
#ifdef FIONBIO
      c_nbio=0;
#endif

      argc--;
      argv++;
      while (argc >= 1)
            {
            if    (strcmp(*argv,"-host") == 0)
                  {
                  if (--argc < 1) goto bad;
                  host= *(++argv);
                  }
            else if     (strcmp(*argv,"-port") == 0)
                  {
                  if (--argc < 1) goto bad;
                  port=atoi(*(++argv));
                  if (port == 0) goto bad;
                  }
            else if (strcmp(*argv,"-connect") == 0)
                  {
                  if (--argc < 1) goto bad;
                  if (!extract_host_port(*(++argv),&host,NULL,&port))
                        goto bad;
                  }
            else if     (strcmp(*argv,"-verify") == 0)
                  {
                  verify=SSL_VERIFY_PEER;
                  if (--argc < 1) goto bad;
                  verify_depth=atoi(*(++argv));
                  BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
                  }
            else if     (strcmp(*argv,"-cert") == 0)
                  {
                  if (--argc < 1) goto bad;
                  cert_file= *(++argv);
                  }
            else if     (strcmp(*argv,"-sess_out") == 0)
                  {
                  if (--argc < 1) goto bad;
                  sess_out = *(++argv);
                  }
            else if     (strcmp(*argv,"-sess_in") == 0)
                  {
                  if (--argc < 1) goto bad;
                  sess_in = *(++argv);
                  }
            else if     (strcmp(*argv,"-certform") == 0)
                  {
                  if (--argc < 1) goto bad;
                  cert_format = str2fmt(*(++argv));
                  }
            else if     (strcmp(*argv,"-crl_check") == 0)
                  vflags |= X509_V_FLAG_CRL_CHECK;
            else if     (strcmp(*argv,"-crl_check_all") == 0)
                  vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
            else if     (strcmp(*argv,"-prexit") == 0)
                  prexit=1;
            else if     (strcmp(*argv,"-crlf") == 0)
                  crlf=1;
            else if     (strcmp(*argv,"-quiet") == 0)
                  {
                  c_quiet=1;
                  c_ign_eof=1;
                  }
            else if     (strcmp(*argv,"-ign_eof") == 0)
                  c_ign_eof=1;
            else if     (strcmp(*argv,"-pause") == 0)
                  c_Pause=1;
            else if     (strcmp(*argv,"-debug") == 0)
                  c_debug=1;
#ifndef OPENSSL_NO_TLSEXT
            else if     (strcmp(*argv,"-tlsextdebug") == 0)
                  c_tlsextdebug=1;
#endif
#ifdef WATT32
            else if (strcmp(*argv,"-wdebug") == 0)
                  dbug_init();
#endif
            else if     (strcmp(*argv,"-msg") == 0)
                  c_msg=1;
            else if     (strcmp(*argv,"-showcerts") == 0)
                  c_showcerts=1;
            else if     (strcmp(*argv,"-nbio_test") == 0)
                  nbio_test=1;
            else if     (strcmp(*argv,"-state") == 0)
                  state=1;
#ifndef OPENSSL_NO_SSL2
            else if     (strcmp(*argv,"-ssl2") == 0)
                  meth=SSLv2_client_method();
#endif
#ifndef OPENSSL_NO_SSL3
            else if     (strcmp(*argv,"-ssl3") == 0)
                  meth=SSLv3_client_method();
#endif
#ifndef OPENSSL_NO_TLS1
            else if     (strcmp(*argv,"-tls1") == 0)
                  meth=TLSv1_client_method();
#endif
#ifndef OPENSSL_NO_DTLS1
            else if     (strcmp(*argv,"-dtls1") == 0)
                  {
                  meth=DTLSv1_client_method();
                  sock_type=SOCK_DGRAM;
                  }
            else if (strcmp(*argv,"-timeout") == 0)
                  enable_timeouts=1;
            else if (strcmp(*argv,"-mtu") == 0)
                  {
                  if (--argc < 1) goto bad;
                  mtu = atol(*(++argv));
                  }
#endif
            else if (strcmp(*argv,"-bugs") == 0)
                  bugs=1;
            else if     (strcmp(*argv,"-keyform") == 0)
                  {
                  if (--argc < 1) goto bad;
                  key_format = str2fmt(*(++argv));
                  }
            else if     (strcmp(*argv,"-pass") == 0)
                  {
                  if (--argc < 1) goto bad;
                  passarg = *(++argv);
                  }
            else if     (strcmp(*argv,"-key") == 0)
                  {
                  if (--argc < 1) goto bad;
                  key_file= *(++argv);
                  }
            else if     (strcmp(*argv,"-reconnect") == 0)
                  {
                  reconnect=5;
                  }
            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,"-no_tls1") == 0)
                  off|=SSL_OP_NO_TLSv1;
            else if (strcmp(*argv,"-no_ssl3") == 0)
                  off|=SSL_OP_NO_SSLv3;
            else if (strcmp(*argv,"-no_ssl2") == 0)
                  off|=SSL_OP_NO_SSLv2;
#ifndef OPENSSL_NO_TLSEXT
            else if     (strcmp(*argv,"-no_ticket") == 0)
                  { off|=SSL_OP_NO_TICKET; }
#endif
            else if (strcmp(*argv,"-serverpref") == 0)
                  off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
            else if     (strcmp(*argv,"-cipher") == 0)
                  {
                  if (--argc < 1) goto bad;
                  cipher= *(++argv);
                  }
#ifdef FIONBIO
            else if (strcmp(*argv,"-nbio") == 0)
                  { c_nbio=1; }
#endif
            else if     (strcmp(*argv,"-starttls") == 0)
                  {
                  if (--argc < 1) goto bad;
                  ++argv;
                  if (strcmp(*argv,"smtp") == 0)
                        starttls_proto = PROTO_SMTP;
                  else if (strcmp(*argv,"pop3") == 0)
                        starttls_proto = PROTO_POP3;
                  else if (strcmp(*argv,"imap") == 0)
                        starttls_proto = PROTO_IMAP;
                  else if (strcmp(*argv,"ftp") == 0)
                        starttls_proto = PROTO_FTP;
                  else
                        goto bad;
                  }
#ifndef OPENSSL_NO_ENGINE
            else if     (strcmp(*argv,"-engine") == 0)
                  {
                  if (--argc < 1) goto bad;
                  engine_id = *(++argv);
                  }
#endif
            else if (strcmp(*argv,"-rand") == 0)
                  {
                  if (--argc < 1) goto bad;
                  inrand= *(++argv);
                  }
#ifndef OPENSSL_NO_TLSEXT
            else if (strcmp(*argv,"-servername") == 0)
                  {
                  if (--argc < 1) goto bad;
                  servername= *(++argv);
                  /* meth=TLSv1_client_method(); */
                  }
#endif
            else
                  {
                  BIO_printf(bio_err,"unknown option %s\n",*argv);
                  badop=1;
                  break;
                  }
            argc--;
            argv++;
            }
      if (badop)
            {
bad:
            sc_usage();
            goto end;
            }

      OpenSSL_add_ssl_algorithms();
      SSL_load_error_strings();

#ifndef OPENSSL_NO_ENGINE
        e = setup_engine(bio_err, engine_id, 1);
#endif
      if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
            {
            BIO_printf(bio_err, "Error getting password\n");
            goto end;
            }

      if (key_file == NULL)
            key_file = cert_file;


      if (key_file)

            {

            key = load_key(bio_err, key_file, key_format, 0, pass, e,
                         "client certificate private key file");
            if (!key)
                  {
                  ERR_print_errors(bio_err);
                  goto end;
                  }

            }

      if (cert_file)

            {
            cert = load_cert(bio_err,cert_file,cert_format,
                        NULL, e, "client certificate file");

            if (!cert)
                  {
                  ERR_print_errors(bio_err);
                  goto end;
                  }
            }

      if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
            && !RAND_status())
            {
            BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
            }
      if (inrand != NULL)
            BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
                  app_RAND_load_files(inrand));

      if (bio_c_out == NULL)
            {
            if (c_quiet && !c_debug && !c_msg)
                  {
                  bio_c_out=BIO_new(BIO_s_null());
                  }
            else
                  {
                  if (bio_c_out == NULL)
                        bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
                  }
            }

      ctx=SSL_CTX_new(meth);
      if (ctx == NULL)
            {
            ERR_print_errors(bio_err);
            goto end;
            }

      if (bugs)
            SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
      else
            SSL_CTX_set_options(ctx,off);
      /* DTLS: partial reads end up discarding unread UDP bytes :-( 
       * Setting read ahead solves this problem.
       */
      if (sock_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);

      if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
      if (cipher != NULL)
            if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
            BIO_printf(bio_err,"error setting cipher list\n");
            ERR_print_errors(bio_err);
            goto end;
      }
#if 0
      else
            SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
#endif

      SSL_CTX_set_verify(ctx,verify,verify_callback);
      if (!set_cert_key_stuff(ctx,cert,key))
            goto end;

      if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
            (!SSL_CTX_set_default_verify_paths(ctx)))
            {
            /* BIO_printf(bio_err,"error setting default verify locations\n"); */
            ERR_print_errors(bio_err);
            /* goto end; */
            }

      store = SSL_CTX_get_cert_store(ctx);
      X509_STORE_set_flags(store, vflags);
#ifndef OPENSSL_NO_TLSEXT
      if (servername != NULL)
            {
            tlsextcbp.biodebug = bio_err;
            SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
            SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
            }
#endif

      con=SSL_new(ctx);
      if (sess_in)
            {
            SSL_SESSION *sess;
            BIO *stmp = BIO_new_file(sess_in, "r");
            if (!stmp)
                  {
                  BIO_printf(bio_err, "Can't open session file %s\n",
                                    sess_in);
                  ERR_print_errors(bio_err);
                  goto end;
                  }
            sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
            BIO_free(stmp);
            if (!sess)
                  {
                  BIO_printf(bio_err, "Can't open session file %s\n",
                                    sess_in);
                  ERR_print_errors(bio_err);
                  goto end;
                  }
            SSL_set_session(con, sess);
            SSL_SESSION_free(sess);
            }
#ifndef OPENSSL_NO_TLSEXT
      if (servername != NULL)
            {
            if (!SSL_set_tlsext_host_name(con,servername))
                  {
                  BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
                  ERR_print_errors(bio_err);
                  goto end;
                  }
            }
#endif

#ifndef OPENSSL_NO_KRB5
      if (con  &&  (con->kssl_ctx = kssl_ctx_new()) != NULL)
                {
                kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVER, host);
            }
#endif      /* OPENSSL_NO_KRB5  */
/*    SSL_set_cipher_list(con,"RC4-MD5"); */

re_start:

      if (init_client(&s,host,port,sock_type) == 0)
            {
            BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
            SHUTDOWN(s);
            goto end;
            }
      BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);

#ifdef FIONBIO
      if (c_nbio)
            {
            unsigned long l=1;
            BIO_printf(bio_c_out,"turning on non blocking io\n");
            if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
                  {
                  ERR_print_errors(bio_err);
                  goto end;
                  }
            }
#endif                                              
      if (c_Pause & 0x01) con->debug=1;

      if ( SSL_version(con) == DTLS1_VERSION)
            {
            struct timeval timeout;

            sbio=BIO_new_dgram(s,BIO_NOCLOSE);
            if (getsockname(s, &peer, (void *)&peerlen) < 0)
                  {
                  BIO_printf(bio_err, "getsockname:errno=%d\n",
                        get_last_socket_error());
                  SHUTDOWN(s);
                  goto end;
                  }

            (void)BIO_ctrl_set_connected(sbio, 1, &peer);

            if ( enable_timeouts)
                  {
                  timeout.tv_sec = 0;
                  timeout.tv_usec = DGRAM_RCV_TIMEOUT;
                  BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
                  
                  timeout.tv_sec = 0;
                  timeout.tv_usec = DGRAM_SND_TIMEOUT;
                  BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
                  }

            if ( mtu > 0)
                  {
                  SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
                  SSL_set_mtu(con, mtu);
                  }
            else
                  /* want to do MTU discovery */
                  BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
            }
      else
            sbio=BIO_new_socket(s,BIO_NOCLOSE);



      if (nbio_test)
            {
            BIO *test;

            test=BIO_new(BIO_f_nbio_test());
            sbio=BIO_push(test,sbio);
            }

      if (c_debug)
            {
            con->debug=1;
            BIO_set_callback(sbio,bio_dump_callback);
            BIO_set_callback_arg(sbio,(char *)bio_c_out);
            }
      if (c_msg)
            {
            SSL_set_msg_callback(con, msg_cb);
            SSL_set_msg_callback_arg(con, bio_c_out);
            }
#ifndef OPENSSL_NO_TLSEXT
      if (c_tlsextdebug)
            {
            SSL_set_tlsext_debug_callback(con, tlsext_cb);
            SSL_set_tlsext_debug_arg(con, bio_c_out);
            }
#endif

      SSL_set_bio(con,sbio,sbio);
      SSL_set_connect_state(con);

      /* ok, lets connect */
      width=SSL_get_fd(con)+1;

      read_tty=1;
      write_tty=0;
      tty_on=0;
      read_ssl=1;
      write_ssl=1;
      
      cbuf_len=0;
      cbuf_off=0;
      sbuf_len=0;
      sbuf_off=0;

      /* This is an ugly hack that does a lot of assumptions */
      /* We do have to handle multi-line responses which may come
         in a single packet or not. We therefore have to use
         BIO_gets() which does need a buffering BIO. So during
         the initial chitchat we do push a buffering BIO into the
         chain that is removed again later on to not disturb the
         rest of the s_client operation. */
      if (starttls_proto == PROTO_SMTP)
            {
            int foundit=0;
            BIO *fbio = BIO_new(BIO_f_buffer());
            BIO_push(fbio, sbio);
            /* wait for multi-line response to end from SMTP */
            do
                  {
                  mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
                  }
            while (mbuf_len>3 && mbuf[3]=='-');
            /* STARTTLS command requires EHLO... */
            BIO_printf(fbio,"EHLO openssl.client.net\r\n");
            (void)BIO_flush(fbio);
            /* wait for multi-line response to end EHLO SMTP response */
            do
                  {
                  mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
                  if (strstr(mbuf,"STARTTLS"))
                        foundit=1;
                  }
            while (mbuf_len>3 && mbuf[3]=='-');
            (void)BIO_flush(fbio);
            BIO_pop(fbio);
            BIO_free(fbio);
            if (!foundit)
                  BIO_printf(bio_err,
                           "didn't found starttls in server response,"
                           " try anyway...\n");
            BIO_printf(sbio,"STARTTLS\r\n");
            BIO_read(sbio,sbuf,BUFSIZZ);
            }
      else if (starttls_proto == PROTO_POP3)
            {
            BIO_read(sbio,mbuf,BUFSIZZ);
            BIO_printf(sbio,"STLS\r\n");
            BIO_read(sbio,sbuf,BUFSIZZ);
            }
      else if (starttls_proto == PROTO_IMAP)
            {
            int foundit=0;
            BIO *fbio = BIO_new(BIO_f_buffer());
            BIO_push(fbio, sbio);
            BIO_gets(fbio,mbuf,BUFSIZZ);
            /* STARTTLS command requires CAPABILITY... */
            BIO_printf(fbio,". CAPABILITY\r\n");
            (void)BIO_flush(fbio);
            /* wait for multi-line CAPABILITY response */
            do
                  {
                  mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
                  if (strstr(mbuf,"STARTTLS"))
                        foundit=1;
                  }
            while (mbuf_len>3 && mbuf[0]!='.');
            (void)BIO_flush(fbio);
            BIO_pop(fbio);
            BIO_free(fbio);
            if (!foundit)
                  BIO_printf(bio_err,
                           "didn't found STARTTLS in server response,"
                           " try anyway...\n");
            BIO_printf(sbio,". STARTTLS\r\n");
            BIO_read(sbio,sbuf,BUFSIZZ);
            }
      else if (starttls_proto == PROTO_FTP)
            {
            BIO *fbio = BIO_new(BIO_f_buffer());
            BIO_push(fbio, sbio);
            /* wait for multi-line response to end from FTP */
            do
                  {
                  mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
                  }
            while (mbuf_len>3 && mbuf[3]=='-');
            (void)BIO_flush(fbio);
            BIO_pop(fbio);
            BIO_free(fbio);
            BIO_printf(sbio,"AUTH TLS\r\n");
            BIO_read(sbio,sbuf,BUFSIZZ);
            }

      for (;;)
            {
            FD_ZERO(&readfds);
            FD_ZERO(&writefds);

            if (SSL_in_init(con) && !SSL_total_renegotiations(con))
                  {
                  in_init=1;
                  tty_on=0;
                  }
            else
                  {
                  tty_on=1;
                  if (in_init)
                        {
                        in_init=0;
                        if (sess_out)
                              {
                              BIO *stmp = BIO_new_file(sess_out, "w");
                              if (stmp)
                                    {
                                    PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
                                    BIO_free(stmp);
                                    }
                              else 
                                    BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
                              }
                        print_stuff(bio_c_out,con,full_log);
                        if (full_log > 0) full_log--;

                        if (starttls_proto)
                              {
                              BIO_printf(bio_err,"%s",mbuf);
                              /* We don't need to know any more */
                              starttls_proto = PROTO_OFF;
                              }

                        if (reconnect)
                              {
                              reconnect--;
                              BIO_printf(bio_c_out,"drop connection and then reconnect\n");
                              SSL_shutdown(con);
                              SSL_set_connect_state(con);
                              SHUTDOWN(SSL_get_fd(con));
                              goto re_start;
                              }
                        }
                  }

            ssl_pending = read_ssl && SSL_pending(con);

            if (!ssl_pending)
                  {
#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE)
                  if (tty_on)
                        {
                        if (read_tty)  FD_SET(fileno(stdin),&readfds);
                        if (write_tty) FD_SET(fileno(stdout),&writefds);
                        }
                  if (read_ssl)
                        FD_SET(SSL_get_fd(con),&readfds);
                  if (write_ssl)
                        FD_SET(SSL_get_fd(con),&writefds);
#else
                  if(!tty_on || !write_tty) {
                        if (read_ssl)
                              FD_SET(SSL_get_fd(con),&readfds);
                        if (write_ssl)
                              FD_SET(SSL_get_fd(con),&writefds);
                  }
#endif
/*                printf("mode tty(%d %d%d) ssl(%d%d)\n",
                        tty_on,read_tty,write_tty,read_ssl,write_ssl);*/

                  /* Note: under VMS with SOCKETSHR the second parameter
                   * is currently of type (int *) whereas under other
                   * systems it is (void *) if you don't have a cast it
                   * will choke the compiler: if you do have a cast then
                   * you can either go for (int *) or (void *).
                   */
#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
                        /* Under Windows/DOS we make the assumption that we can
                   * always write to the tty: therefore if we need to
                   * write to the tty we just fall through. Otherwise
                   * we timeout the select every second and see if there
                   * are any keypresses. Note: this is a hack, in a proper
                   * Windows application we wouldn't do this.
                   */
                  i=0;
                  if(!write_tty) {
                        if(read_tty) {
                              tv.tv_sec = 1;
                              tv.tv_usec = 0;
                              i=select(width,(void *)&readfds,(void *)&writefds,
                                     NULL,&tv);
#if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
                              if(!i && (!_kbhit() || !read_tty) ) continue;
#else
                              if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
#endif
                        } else      i=select(width,(void *)&readfds,(void *)&writefds,
                               NULL,NULL);
                  }
#elif defined(OPENSSL_SYS_NETWARE)
                  if(!write_tty) {
                        if(read_tty) {
                              tv.tv_sec = 1;
                              tv.tv_usec = 0;
                              i=select(width,(void *)&readfds,(void *)&writefds,
                                    NULL,&tv);
                        } else      i=select(width,(void *)&readfds,(void *)&writefds,
                              NULL,NULL);
                  }
#else
                  i=select(width,(void *)&readfds,(void *)&writefds,
                         NULL,NULL);
#endif
                  if ( i < 0)
                        {
                        BIO_printf(bio_err,"bad select %d\n",
                        get_last_socket_error());
                        goto shut;
                        /* goto end; */
                        }
                  }

            if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
                  {
                  k=SSL_write(con,&(cbuf[cbuf_off]),
                        (unsigned int)cbuf_len);
                  switch (SSL_get_error(con,k))
                        {
                  case SSL_ERROR_NONE:
                        cbuf_off+=k;
                        cbuf_len-=k;
                        if (k <= 0) goto end;
                        /* we have done a  write(con,NULL,0); */
                        if (cbuf_len <= 0)
                              {
                              read_tty=1;
                              write_ssl=0;
                              }
                        else /* if (cbuf_len > 0) */
                              {
                              read_tty=0;
                              write_ssl=1;
                              }
                        break;
                  case SSL_ERROR_WANT_WRITE:
                        BIO_printf(bio_c_out,"write W BLOCK\n");
                        write_ssl=1;
                        read_tty=0;
                        break;
                  case SSL_ERROR_WANT_READ:
                        BIO_printf(bio_c_out,"write R BLOCK\n");
                        write_tty=0;
                        read_ssl=1;
                        write_ssl=0;
                        break;
                  case SSL_ERROR_WANT_X509_LOOKUP:
                        BIO_printf(bio_c_out,"write X BLOCK\n");
                        break;
                  case SSL_ERROR_ZERO_RETURN:
                        if (cbuf_len != 0)
                              {
                              BIO_printf(bio_c_out,"shutdown\n");
                              goto shut;
                              }
                        else
                              {
                              read_tty=1;
                              write_ssl=0;
                              break;
                              }
                        
                  case SSL_ERROR_SYSCALL:
                        if ((k != 0) || (cbuf_len != 0))
                              {
                              BIO_printf(bio_err,"write:errno=%d\n",
                                    get_last_socket_error());
                              goto shut;
                              }
                        else
                              {
                              read_tty=1;
                              write_ssl=0;
                              }
                        break;
                  case SSL_ERROR_SSL:
                        ERR_print_errors(bio_err);
                        goto shut;
                        }
                  }
#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
            /* Assume Windows/DOS can always write */
            else if (!ssl_pending && write_tty)
#else
            else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
#endif
                  {
#ifdef CHARSET_EBCDIC
                  ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
#endif
                  i=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len);

                  if (i <= 0)
                        {
                        BIO_printf(bio_c_out,"DONE\n");
                        goto shut;
                        /* goto end; */
                        }

                  sbuf_len-=i;;
                  sbuf_off+=i;
                  if (sbuf_len <= 0)
                        {
                        read_ssl=1;
                        write_tty=0;
                        }
                  }
            else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
                  {
#ifdef RENEG
{ static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
#endif
#if 1
                  k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
#else
/* Demo for pending and peek :-) */
                  k=SSL_read(con,sbuf,16);
{ char zbuf[10240]; 
printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
}
#endif

                  switch (SSL_get_error(con,k))
                        {
                  case SSL_ERROR_NONE:
                        if (k <= 0)
                              goto end;
                        sbuf_off=0;
                        sbuf_len=k;

                        read_ssl=0;
                        write_tty=1;
                        break;
                  case SSL_ERROR_WANT_WRITE:
                        BIO_printf(bio_c_out,"read W BLOCK\n");
                        write_ssl=1;
                        read_tty=0;
                        break;
                  case SSL_ERROR_WANT_READ:
                        BIO_printf(bio_c_out,"read R BLOCK\n");
                        write_tty=0;
                        read_ssl=1;
                        if ((read_tty == 0) && (write_ssl == 0))
                              write_ssl=1;
                        break;
                  case SSL_ERROR_WANT_X509_LOOKUP:
                        BIO_printf(bio_c_out,"read X BLOCK\n");
                        break;
                  case SSL_ERROR_SYSCALL:
                        BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
                        goto shut;
                  case SSL_ERROR_ZERO_RETURN:
                        BIO_printf(bio_c_out,"closed\n");
                        goto shut;
                  case SSL_ERROR_SSL:
                        ERR_print_errors(bio_err);
                        goto shut;
                        /* break; */
                        }
                  }

#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
#if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
            else if (_kbhit())
#else
            else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
#endif
#elif defined (OPENSSL_SYS_NETWARE)
        else if (_kbhit())
#else
            else if (FD_ISSET(fileno(stdin),&readfds))
#endif
                  {
                  if (crlf)
                        {
                        int j, lf_num;

                        i=read(fileno(stdin),cbuf,BUFSIZZ/2);
                        lf_num = 0;
                        /* both loops are skipped when i <= 0 */
                        for (j = 0; j < i; j++)
                              if (cbuf[j] == '\n')
                                    lf_num++;
                        for (j = i-1; j >= 0; j--)
                              {
                              cbuf[j+lf_num] = cbuf[j];
                              if (cbuf[j] == '\n')
                                    {
                                    lf_num--;
                                    i++;
                                    cbuf[j+lf_num] = '\r';
                                    }
                              }
                        assert(lf_num == 0);
                        }
                  else
                        i=read(fileno(stdin),cbuf,BUFSIZZ);

                  if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
                        {
                        BIO_printf(bio_err,"DONE\n");
                        goto shut;
                        }

                  if ((!c_ign_eof) && (cbuf[0] == 'R'))
                        {
                        BIO_printf(bio_err,"RENEGOTIATING\n");
                        SSL_renegotiate(con);
                        cbuf_len=0;
                        }
                  else
                        {
                        cbuf_len=i;
                        cbuf_off=0;
#ifdef CHARSET_EBCDIC
                        ebcdic2ascii(cbuf, cbuf, i);
#endif
                        }

                  write_ssl=1;
                  read_tty=0;
                  }
            }
shut:
      SSL_shutdown(con);
      SHUTDOWN(SSL_get_fd(con));
      ret=0;
end:
      if(prexit) print_stuff(bio_c_out,con,1);
      if (con != NULL) SSL_free(con);
      if (con2 != NULL) SSL_free(con2);
      if (ctx != NULL) SSL_CTX_free(ctx);
      if (cert)
            X509_free(cert);
      if (key)
            EVP_PKEY_free(key);
      if (pass)
            OPENSSL_free(pass);
      if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
      if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
      if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
      if (bio_c_out != NULL)
            {
            BIO_free(bio_c_out);
            bio_c_out=NULL;
            }
      apps_shutdown();
      OPENSSL_EXIT(ret);
      }


static void print_stuff(BIO *bio, SSL *s, int full)
      {
      X509 *peer=NULL;
      char *p;
      static const char *space="                ";
      char buf[BUFSIZ];
      STACK_OF(X509) *sk;
      STACK_OF(X509_NAME) *sk2;
      SSL_CIPHER *c;
      X509_NAME *xn;
      int j,i;
#ifndef OPENSSL_NO_COMP
      const COMP_METHOD *comp, *expansion;
#endif

      if (full)
            {
            int got_a_chain = 0;

            sk=SSL_get_peer_cert_chain(s);
            if (sk != NULL)
                  {
                  got_a_chain = 1; /* we don't have it for SSL2 (yet) */

                  BIO_printf(bio,"---\nCertificate chain\n");
                  for (i=0; i<sk_X509_num(sk); i++)
                        {
                        X509_NAME_oneline(X509_get_subject_name(
                              sk_X509_value(sk,i)),buf,sizeof buf);
                        BIO_printf(bio,"%2d s:%s\n",i,buf);
                        X509_NAME_oneline(X509_get_issuer_name(
                              sk_X509_value(sk,i)),buf,sizeof buf);
                        BIO_printf(bio,"   i:%s\n",buf);
                        if (c_showcerts)
                              PEM_write_bio_X509(bio,sk_X509_value(sk,i));
                        }
                  }

            BIO_printf(bio,"---\n");
            peer=SSL_get_peer_certificate(s);
            if (peer != NULL)
                  {
                  BIO_printf(bio,"Server certificate\n");
                  if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
                        PEM_write_bio_X509(bio,peer);
                  X509_NAME_oneline(X509_get_subject_name(peer),
                        buf,sizeof buf);
                  BIO_printf(bio,"subject=%s\n",buf);
                  X509_NAME_oneline(X509_get_issuer_name(peer),
                        buf,sizeof buf);
                  BIO_printf(bio,"issuer=%s\n",buf);
                  }
            else
                  BIO_printf(bio,"no peer certificate available\n");

            sk2=SSL_get_client_CA_list(s);
            if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
                  {
                  BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
                  for (i=0; i<sk_X509_NAME_num(sk2); i++)
                        {
                        xn=sk_X509_NAME_value(sk2,i);
                        X509_NAME_oneline(xn,buf,sizeof(buf));
                        BIO_write(bio,buf,strlen(buf));
                        BIO_write(bio,"\n",1);
                        }
                  }
            else
                  {
                  BIO_printf(bio,"---\nNo client certificate CA names sent\n");
                  }
            p=SSL_get_shared_ciphers(s,buf,sizeof buf);
            if (p != NULL)
                  {
                  /* This works only for SSL 2.  In later protocol
                   * versions, the client does not know what other
                   * ciphers (in addition to the one to be used
                   * in the current connection) the server supports. */

                  BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
                  j=i=0;
                  while (*p)
                        {
                        if (*p == ':')
                              {
                              BIO_write(bio,space,15-j%25);
                              i++;
                              j=0;
                              BIO_write(bio,((i%3)?" ":"\n"),1);
                              }
                        else
                              {
                              BIO_write(bio,p,1);
                              j++;
                              }
                        p++;
                        }
                  BIO_write(bio,"\n",1);
                  }

            BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
                  BIO_number_read(SSL_get_rbio(s)),
                  BIO_number_written(SSL_get_wbio(s)));
            }
      BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
      c=SSL_get_current_cipher(s);
      BIO_printf(bio,"%s, Cipher is %s\n",
            SSL_CIPHER_get_version(c),
            SSL_CIPHER_get_name(c));
      if (peer != NULL) {
            EVP_PKEY *pktmp;
            pktmp = X509_get_pubkey(peer);
            BIO_printf(bio,"Server public key is %d bit\n",
                                           EVP_PKEY_bits(pktmp));
            EVP_PKEY_free(pktmp);
      }
#ifndef OPENSSL_NO_COMP
      comp=SSL_get_current_compression(s);
      expansion=SSL_get_current_expansion(s);
      BIO_printf(bio,"Compression: %s\n",
            comp ? SSL_COMP_get_name(comp) : "NONE");
      BIO_printf(bio,"Expansion: %s\n",
            expansion ? SSL_COMP_get_name(expansion) : "NONE");
#endif
      SSL_SESSION_print(bio,SSL_get_session(s));
      BIO_printf(bio,"---\n");
      if (peer != NULL)
            X509_free(peer);
      /* flush, or debugging output gets mixed with http response */
      (void)BIO_flush(bio);
      }


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