apps/s_client.c

   1 /* apps/s_client.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58 /* ====================================================================
  59  * Copyright (c) 1998-2006 The OpenSSL Project.  All rights reserved.
  60  *
  61  * Redistribution and use in source and binary forms, with or without
  62  * modification, are permitted provided that the following conditions
  63  * are met:
  64  *
  65  * 1. Redistributions of source code must retain the above copyright
  66  *    notice, this list of conditions and the following disclaimer.
  67  *
  68  * 2. Redistributions in binary form must reproduce the above copyright
  69  *    notice, this list of conditions and the following disclaimer in
  70  *    the documentation and/or other materials provided with the
  71  *    distribution.
  72  *
  73  * 3. All advertising materials mentioning features or use of this
  74  *    software must display the following acknowledgment:
  75  *    "This product includes software developed by the OpenSSL Project
  76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  77  *
  78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  79  *    endorse or promote products derived from this software without
  80  *    prior written permission. For written permission, please contact
  81  *    openssl-core@openssl.org.
  82  *
  83  * 5. Products derived from this software may not be called "OpenSSL"
  84  *    nor may "OpenSSL" appear in their names without prior written
  85  *    permission of the OpenSSL Project.
  86  *
  87  * 6. Redistributions of any form whatsoever must retain the following
  88  *    acknowledgment:
  89  *    "This product includes software developed by the OpenSSL Project
  90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  91  *
  92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 103  * OF THE POSSIBILITY OF SUCH DAMAGE.
 104  * ====================================================================
 105  *
 106  * This product includes cryptographic software written by Eric Young
 107  * (eay@cryptsoft.com).  This product includes software written by Tim
 108  * Hudson (tjh@cryptsoft.com).
 109  *
 110  */
 111 /* ====================================================================
 112  * Copyright 2005 Nokia. All rights reserved.
 113  *
 114  * The portions of the attached software ("Contribution") is developed by
 115  * Nokia Corporation and is licensed pursuant to the OpenSSL open source
 116  * license.
 117  *
 118  * The Contribution, originally written by Mika Kousa and Pasi Eronen of
 119  * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
 120  * support (see RFC 4279) to OpenSSL.
 121  *
 122  * No patent licenses or other rights except those expressly stated in
 123  * the OpenSSL open source license shall be deemed granted or received
 124  * expressly, by implication, estoppel, or otherwise.
 125  *
 126  * No assurances are provided by Nokia that the Contribution does not
 127  * infringe the patent or other intellectual property rights of any third
 128  * party or that the license provides you with all the necessary rights
 129  * to make use of the Contribution.
 130  *
 131  * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
 132  * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
 133  * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
 134  * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
 135  * OTHERWISE.
 136  */
 137
 138 #include <assert.h>
 139 #include <ctype.h>
 140 #include <stdio.h>
 141 #include <stdlib.h>
 142 #include <string.h>
 143 #include <openssl/e_os2.h>
 144 #ifdef OPENSSL_NO_STDIO
 145 #define APPS_WIN16
 146 #endif
 147
 148 /* With IPv6, it looks like Digital has mixed up the proper order of
 149    recursive header file inclusion, resulting in the compiler complaining
 150    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
 151    is needed to have fileno() declared correctly...  So let's define u_int */
 152 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
 153 #define __U_INT
 154 typedef unsigned int u_int;
 155 #endif
 156
 157 #define USE_SOCKETS
 158 #include "apps.h"
 159 #include <openssl/x509.h>
 160 #include <openssl/ssl.h>
 161 #include <openssl/err.h>
 162 #include <openssl/pem.h>
 163 #include <openssl/rand.h>
 164 #include <openssl/ocsp.h>
 165 #include <openssl/bn.h>
 166 #ifndef OPENSSL_NO_SRP
 167 #include <openssl/srp.h>
 168 #endif
 169 #include "s_apps.h"
 170 #include "timeouts.h"
 171
 172 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 173 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 174 #undef FIONBIO
 175 #endif
 176
 177 #if defined(OPENSSL_SYS_BEOS_R5)
 178 #include <fcntl.h>
 179 #endif
 180
 181 #undef PROG
 182 #define PROG    s_client_main
 183
 184 /*#define SSL_HOST_NAME "www.netscape.com" */
 185 /*#define SSL_HOST_NAME "193.118.187.102" */
 186 #define SSL_HOST_NAME   "localhost"
 187
 188 /*#define TEST_CERT "client.pem" */ /* no default cert. */
 189
 190 #undef BUFSIZZ
 191 #define BUFSIZZ 1024*8
 192
 193 extern int verify_depth;
 194 extern int verify_error;
 195 extern int verify_return_error;
 196 extern int verify_quiet;
 197
 198 #ifdef FIONBIO
 199 static int c_nbio=0;
 200 #endif
 201 static int c_Pause=0;
 202 static int c_debug=0;
 203 #ifndef OPENSSL_NO_TLSEXT
 204 static int c_tlsextdebug=0;
 205 static int c_status_req=0;
 206 static int c_proof_debug=0;
 207 #endif
 208 static int c_msg=0;
 209 static int c_showcerts=0;
 210
 211 static char *keymatexportlabel=NULL;
 212 static int keymatexportlen=20;
 213
 214 static void sc_usage(void);
 215 static void print_stuff(BIO *berr,SSL *con,int full);
 216 #ifndef OPENSSL_NO_TLSEXT
 217 static int ocsp_resp_cb(SSL *s, void *arg);
 218 static int audit_proof_cb(SSL *s, void *arg);
 219 #endif
 220 static BIO *bio_c_out=NULL;
 221 static BIO *bio_c_msg=NULL;
 222 static int c_quiet=0;
 223 static int c_ign_eof=0;
 224 static int c_brief=0;
 225
 226 #ifndef OPENSSL_NO_PSK
 227 /* Default PSK identity and key */
 228 static char *psk_identity="Client_identity";
 229 /*char *psk_key=NULL;  by default PSK is not used */
 230
 231 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
 232         unsigned int max_identity_len, unsigned char *psk,
 233         unsigned int max_psk_len)
 234         {
 235         unsigned int psk_len = 0;
 236         int ret;
 237         BIGNUM *bn=NULL;
 238
 239         if (c_debug)
 240                 BIO_printf(bio_c_out, "psk_client_cb\n");
 241         if (!hint)
 242                 {
 243                 /* no ServerKeyExchange message*/
 244                 if (c_debug)
 245                         BIO_printf(bio_c_out,"NULL received PSK identity hint, continuing anyway\n");
 246                 }
 247         else if (c_debug)
 248                 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
 249
 250         /* lookup PSK identity and PSK key based on the given identity hint here */
 251         ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity);
 252         if (ret < 0 || (unsigned int)ret > max_identity_len)
 253                 goto out_err;
 254         if (c_debug)
 255                 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity, ret);
 256         ret=BN_hex2bn(&bn, psk_key);
 257         if (!ret)
 258                 {
 259                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
 260                 if (bn)
 261                         BN_free(bn);
 262                 return 0;
 263                 }
 264
 265         if ((unsigned int)BN_num_bytes(bn) > max_psk_len)
 266                 {
 267                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
 268                         max_psk_len, BN_num_bytes(bn));
 269                 BN_free(bn);
 270                 return 0;
 271                 }
 272
 273         psk_len=BN_bn2bin(bn, psk);
 274         BN_free(bn);
 275         if (psk_len == 0)
 276                 goto out_err;
 277
 278         if (c_debug)
 279                 BIO_printf(bio_c_out, "created PSK len=%d\n", psk_len);
 280
 281         return psk_len;
 282  out_err:
 283         if (c_debug)
 284                 BIO_printf(bio_err, "Error in PSK client callback\n");
 285         return 0;
 286         }
 287 #endif
 288
 289 static void sc_usage(void)
 290         {
 291         BIO_printf(bio_err,"usage: s_client args\n");
 292         BIO_printf(bio_err,"\n");
 293         BIO_printf(bio_err," -host host     - use -connect instead\n");
 294         BIO_printf(bio_err," -port port     - use -connect instead\n");
 295         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
 296
 297         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 298         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 299         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 300         BIO_printf(bio_err," -key arg      - Private key file to use, in cert file if\n");
 301         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 302         BIO_printf(bio_err," -keyform arg  - key format (PEM or DER) PEM default\n");
 303         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 304         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 305         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 306         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 307         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 308         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
 309         BIO_printf(bio_err," -debug        - extra output\n");
 310 #ifdef WATT32
 311         BIO_printf(bio_err," -wdebug       - WATT-32 tcp debugging\n");
 312 #endif
 313         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 314         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
 315         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
 316 #ifdef FIONBIO
 317         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 318 #endif
 319         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 320         BIO_printf(bio_err," -quiet        - no s_client output\n");
 321         BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
 322         BIO_printf(bio_err," -no_ign_eof   - don't ignore input eof\n");
 323 #ifndef OPENSSL_NO_PSK
 324         BIO_printf(bio_err," -psk_identity arg - PSK identity\n");
 325         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
 326 # ifndef OPENSSL_NO_JPAKE
 327         BIO_printf(bio_err," -jpake arg    - JPAKE secret to use\n");
 328 # endif
 329 #endif
 330 #ifndef OPENSSL_NO_SRP
 331         BIO_printf(bio_err," -srpuser user     - SRP authentification for 'user'\n");
 332         BIO_printf(bio_err," -srppass arg      - password for 'user'\n");
 333         BIO_printf(bio_err," -srp_lateuser     - SRP username into second ClientHello message\n");
 334         BIO_printf(bio_err," -srp_moregroups   - Tolerate other than the known g N values.\n");
 335         BIO_printf(bio_err," -srp_strength int - minimal mength in bits for N (default %d).\n",SRP_MINIMAL_N);
 336 #endif
 337         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 338         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 339         BIO_printf(bio_err," -tls1_2       - just use TLSv1.2\n");
 340         BIO_printf(bio_err," -tls1_1       - just use TLSv1.1\n");
 341         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 342         BIO_printf(bio_err," -dtls1        - just use DTLSv1\n");
 343         BIO_printf(bio_err," -mtu          - set the link layer MTU\n");
 344         BIO_printf(bio_err," -no_tls1_2/-no_tls1_1/-no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 345         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 346         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
 347         BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
 348         BIO_printf(bio_err,"                 command to see what is available\n");
 349         BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
 350         BIO_printf(bio_err,"                 for those protocols that support it, where\n");
 351         BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
 352         BIO_printf(bio_err,"                 only \"smtp\", \"pop3\", \"imap\", \"ftp\" and \"xmpp\"\n");
 353         BIO_printf(bio_err,"                 are supported.\n");
 354 #ifndef OPENSSL_NO_ENGINE
 355         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 356 #endif
 357         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 358         BIO_printf(bio_err," -sess_out arg - file to write SSL session to\n");
 359         BIO_printf(bio_err," -sess_in arg  - file to read SSL session from\n");
 360 #ifndef OPENSSL_NO_TLSEXT
 361         BIO_printf(bio_err," -servername host  - Set TLS extension servername in ClientHello\n");
 362         BIO_printf(bio_err," -tlsextdebug      - hex dump of all TLS extensions received\n");
 363         BIO_printf(bio_err," -status           - request certificate status from server\n");
 364         BIO_printf(bio_err," -no_ticket        - disable use of RFC4507bis session tickets\n");
 365         BIO_printf(bio_err," -proof_debug      - request an audit proof and print its hex dump\n");
 366 # ifndef OPENSSL_NO_NEXTPROTONEG
 367         BIO_printf(bio_err," -nextprotoneg arg - enable NPN extension, considering named protocols supported (comma-separated list)\n");
 368 # endif
 369 #ifndef OPENSSL_NO_TLSEXT
 370         BIO_printf(bio_err," -serverinfo types - send empty ClientHello extensions (comma-separated numbers)\n");
 371 #endif
 372 #endif
 373         BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
 374         BIO_printf(bio_err," -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
 375         BIO_printf(bio_err," -keymatexport label   - Export keying material using label\n");
 376         BIO_printf(bio_err," -keymatexportlen len  - Export len bytes of keying material (default 20)\n");
 377         }
 378
 379 #ifndef OPENSSL_NO_TLSEXT
 380
 381 /* This is a context that we pass to callbacks */
 382 typedef struct tlsextctx_st {
 383    BIO * biodebug;
 384    int ack;
 385 } tlsextctx;
 386
 387
 388 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 389         {
 390         tlsextctx * p = (tlsextctx *) arg;
 391         const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 392         if (SSL_get_servername_type(s) != -1)
 393                 p->ack = !SSL_session_reused(s) && hn != NULL;
 394         else
 395                 BIO_printf(bio_err,"Can't use SSL_get_servername\n");
 396
 397         return SSL_TLSEXT_ERR_OK;
 398         }
 399
 400 #ifndef OPENSSL_NO_SRP
 401
 402 /* This is a context that we pass to all callbacks */
 403 typedef struct srp_arg_st
 404         {
 405         char *srppassin;
 406         char *srplogin;
 407         int msg;   /* copy from c_msg */
 408         int debug; /* copy from c_debug */
 409         int amp;   /* allow more groups */
 410         int strength /* minimal size for N */ ;
 411         } SRP_ARG;
 412
 413 #define SRP_NUMBER_ITERATIONS_FOR_PRIME 64
 414
 415 static int srp_Verify_N_and_g(BIGNUM *N, BIGNUM *g)
 416         {
 417         BN_CTX *bn_ctx = BN_CTX_new();
 418         BIGNUM *p = BN_new();
 419         BIGNUM *r = BN_new();
 420         int ret =
 421                 g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) &&
 422                 BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) &&
 423                 p != NULL && BN_rshift1(p, N) &&
 424
 425                 /* p = (N-1)/2 */
 426                 BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) &&
 427                 r != NULL &&
 428
 429                 /* verify g^((N-1)/2) == -1 (mod N) */
 430                 BN_mod_exp(r, g, p, N, bn_ctx) &&
 431                 BN_add_word(r, 1) &&
 432                 BN_cmp(r, N) == 0;
 433
 434         if(r)
 435                 BN_free(r);
 436         if(p)
 437                 BN_free(p);
 438         if(bn_ctx)
 439                 BN_CTX_free(bn_ctx);
 440         return ret;
 441         }
 442
 443 /* This callback is used here for two purposes:
 444    - extended debugging
 445    - making some primality tests for unknown groups
 446    The callback is only called for a non default group.
 447
 448    An application does not need the call back at all if
 449    only the stanard groups are used.  In real life situations,
 450    client and server already share well known groups,
 451    thus there is no need to verify them.
 452    Furthermore, in case that a server actually proposes a group that
 453    is not one of those defined in RFC 5054, it is more appropriate
 454    to add the group to a static list and then compare since
 455    primality tests are rather cpu consuming.
 456 */
 457
 458 static int MS_CALLBACK ssl_srp_verify_param_cb(SSL *s, void *arg)
 459         {
 460         SRP_ARG *srp_arg = (SRP_ARG *)arg;
 461         BIGNUM *N = NULL, *g = NULL;
 462         if (!(N = SSL_get_srp_N(s)) || !(g = SSL_get_srp_g(s)))
 463                 return 0;
 464         if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1)
 465                 {
 466                 BIO_printf(bio_err, "SRP parameters:\n");
 467                 BIO_printf(bio_err,"\tN="); BN_print(bio_err,N);
 468                 BIO_printf(bio_err,"\n\tg="); BN_print(bio_err,g);
 469                 BIO_printf(bio_err,"\n");
 470                 }
 471
 472         if (SRP_check_known_gN_param(g,N))
 473                 return 1;
 474
 475         if (srp_arg->amp == 1)
 476                 {
 477                 if (srp_arg->debug)
 478                         BIO_printf(bio_err, "SRP param N and g are not known params, going to check deeper.\n");
 479
 480 /* The srp_moregroups is a real debugging feature.
 481    Implementors should rather add the value to the known ones.
 482    The minimal size has already been tested.
 483 */
 484                 if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N,g))
 485                         return 1;
 486                 }
 487         BIO_printf(bio_err, "SRP param N and g rejected.\n");
 488         return 0;
 489         }
 490
 491 #define PWD_STRLEN 1024
 492
 493 static char * MS_CALLBACK ssl_give_srp_client_pwd_cb(SSL *s, void *arg)
 494         {
 495         SRP_ARG *srp_arg = (SRP_ARG *)arg;
 496         char *pass = (char *)OPENSSL_malloc(PWD_STRLEN+1);
 497         PW_CB_DATA cb_tmp;
 498         int l;
 499
 500         cb_tmp.password = (char *)srp_arg->srppassin;
 501         cb_tmp.prompt_info = "SRP user";
 502         if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp))<0)
 503                 {
 504                 BIO_printf (bio_err, "Can't read Password\n");
 505                 OPENSSL_free(pass);
 506                 return NULL;
 507                 }
 508         *(pass+l)= '\0';
 509
 510         return pass;
 511         }
 512
 513 #endif
 514         char *srtp_profiles = NULL;
 515
 516 # ifndef OPENSSL_NO_NEXTPROTONEG
 517 /* This the context that we pass to next_proto_cb */
 518 typedef struct tlsextnextprotoctx_st {
 519         unsigned char *data;
 520         unsigned short len;
 521         int status;
 522 } tlsextnextprotoctx;
 523
 524 static tlsextnextprotoctx next_proto;
 525
 526 static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg)
 527         {
 528         tlsextnextprotoctx *ctx = arg;
 529
 530         if (!c_quiet)
 531                 {
 532                 /* We can assume that |in| is syntactically valid. */
 533                 unsigned i;
 534                 BIO_printf(bio_c_out, "Protocols advertised by server: ");
 535                 for (i = 0; i < inlen; )
 536                         {
 537                         if (i)
 538                                 BIO_write(bio_c_out, ", ", 2);
 539                         BIO_write(bio_c_out, &in[i + 1], in[i]);
 540                         i += in[i] + 1;
 541                         }
 542                 BIO_write(bio_c_out, "\n", 1);
 543                 }
 544
 545         ctx->status = SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
 546         return SSL_TLSEXT_ERR_OK;
 547         }
 548 # endif  /* ndef OPENSSL_NO_NEXTPROTONEG */
 549
 550 static int serverinfo_cli_cb(SSL* s, unsigned short ext_type,
 551                              const unsigned char* in, unsigned short inlen,
 552                              int* al, void* arg)
 553         {
 554         char pem_name[100];
 555         unsigned char ext_buf[4 + 65536];
 556
 557         /* Reconstruct the type/len fields prior to extension data */
 558         ext_buf[0] = ext_type >> 8;
 559         ext_buf[1] = ext_type & 0xFF;
 560         ext_buf[2] = inlen >> 8;
 561         ext_buf[3] = inlen & 0xFF;
 562         memcpy(ext_buf+4, in, inlen);
 563
 564         BIO_snprintf(pem_name, sizeof(pem_name), "SERVER_INFO %d", ext_type);
 565         PEM_write_bio(bio_c_out, pem_name, "", ext_buf, 4 + inlen);
 566         return 1;
 567         }
 568
 569 #endif
 570
 571 enum
 572 {
 573         PROTO_OFF       = 0,
 574         PROTO_SMTP,
 575         PROTO_POP3,
 576         PROTO_IMAP,
 577         PROTO_FTP,
 578         PROTO_XMPP
 579 };
 580
 581 int MAIN(int, char **);
 582
 583 int MAIN(int argc, char **argv)
 584         {
 585         int build_chain = 0;
 586         SSL *con=NULL;
 587 #ifndef OPENSSL_NO_KRB5
 588         KSSL_CTX *kctx;
 589 #endif
 590         int s,k,width,state=0;
 591         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
 592         int cbuf_len,cbuf_off;
 593         int sbuf_len,sbuf_off;
 594         fd_set readfds,writefds;
 595         short port=PORT;
 596         int full_log=1;
 597         char *host=SSL_HOST_NAME;
 598         char *cert_file=NULL,*key_file=NULL,*chain_file=NULL;
 599         int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
 600         char *passarg = NULL, *pass = NULL;
 601         X509 *cert = NULL;
 602         EVP_PKEY *key = NULL;
 603         STACK_OF(X509) *chain = NULL;
 604         char *CApath=NULL,*CAfile=NULL;
 605         char *chCApath=NULL,*chCAfile=NULL;
 606         char *vfyCApath=NULL,*vfyCAfile=NULL;
 607         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE;
 608         int crlf=0;
 609         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 610         SSL_CTX *ctx=NULL;
 611         int ret=1,in_init=1,i,nbio_test=0;
 612         int starttls_proto = PROTO_OFF;
 613         int prexit = 0;
 614         X509_VERIFY_PARAM *vpm = NULL;
 615         int badarg = 0;
 616         const SSL_METHOD *meth=NULL;
 617         int socket_type=SOCK_STREAM;
 618         BIO *sbio;
 619         char *inrand=NULL;
 620         int mbuf_len=0;
 621         struct timeval timeout, *timeoutp;
 622 #ifndef OPENSSL_NO_ENGINE
 623         char *engine_id=NULL;
 624         char *ssl_client_engine_id=NULL;
 625         ENGINE *ssl_client_engine=NULL;
 626 #endif
 627         ENGINE *e=NULL;
 628 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
 629         struct timeval tv;
 630 #if defined(OPENSSL_SYS_BEOS_R5)
 631         int stdin_set = 0;
 632 #endif
 633 #endif
 634 #ifndef OPENSSL_NO_TLSEXT
 635         char *servername = NULL;
 636         tlsextctx tlsextcbp =
 637         {NULL,0};
 638 # ifndef OPENSSL_NO_NEXTPROTONEG
 639         const char *next_proto_neg_in = NULL;
 640 # endif
 641 # define MAX_SI_TYPES 100
 642         unsigned short serverinfo_types[MAX_SI_TYPES];
 643         int serverinfo_types_count = 0;
 644 #endif
 645         char *sess_in = NULL;
 646         char *sess_out = NULL;
 647         struct sockaddr peer;
 648         int peerlen = sizeof(peer);
 649         int enable_timeouts = 0 ;
 650         long socket_mtu = 0;
 651 #ifndef OPENSSL_NO_JPAKE
 652 static char *jpake_secret = NULL;
 653 #define no_jpake !jpake_secret
 654 #else
 655 #define no_jpake 1
 656 #endif
 657 #ifndef OPENSSL_NO_SRP
 658         char * srppass = NULL;
 659         int srp_lateuser = 0;
 660         SRP_ARG srp_arg = {NULL,NULL,0,0,0,1024};
 661 #endif
 662         SSL_EXCERT *exc = NULL;
 663
 664         SSL_CONF_CTX *cctx = NULL;
 665         STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
 666
 667         char *crl_file = NULL;
 668         int crl_format = FORMAT_PEM;
 669         int crl_download = 0;
 670         STACK_OF(X509_CRL) *crls = NULL;
 671
 672         meth=SSLv23_client_method();
 673
 674         apps_startup();
 675         c_Pause=0;
 676         c_quiet=0;
 677         c_ign_eof=0;
 678         c_debug=0;
 679         c_msg=0;
 680         c_showcerts=0;
 681
 682         if (bio_err == NULL)
 683                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 684
 685         if (!load_config(bio_err, NULL))
 686                 goto end;
 687
 688         cctx = SSL_CONF_CTX_new();
 689         if (!cctx)
 690                 goto end;
 691         SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT);
 692         SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CMDLINE);
 693
 694         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 695                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 696                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
 697                 {
 698                 BIO_printf(bio_err,"out of memory\n");
 699                 goto end;
 700                 }
 701
 702         verify_depth=0;
 703         verify_error=X509_V_OK;
 704 #ifdef FIONBIO
 705         c_nbio=0;
 706 #endif
 707
 708         argc--;
 709         argv++;
 710         while (argc >= 1)
 711                 {
 712                 if      (strcmp(*argv,"-host") == 0)
 713                         {
 714                         if (--argc < 1) goto bad;
 715                         host= *(++argv);
 716                         }
 717                 else if (strcmp(*argv,"-port") == 0)
 718                         {
 719                         if (--argc < 1) goto bad;
 720                         port=atoi(*(++argv));
 721                         if (port == 0) goto bad;
 722                         }
 723                 else if (strcmp(*argv,"-connect") == 0)
 724                         {
 725                         if (--argc < 1) goto bad;
 726                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 727                                 goto bad;
 728                         }
 729                 else if (strcmp(*argv,"-verify") == 0)
 730                         {
 731                         verify=SSL_VERIFY_PEER;
 732                         if (--argc < 1) goto bad;
 733                         verify_depth=atoi(*(++argv));
 734                         if (!c_quiet)
 735                                 BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 736                         }
 737                 else if (strcmp(*argv,"-cert") == 0)
 738                         {
 739                         if (--argc < 1) goto bad;
 740                         cert_file= *(++argv);
 741                         }
 742                 else if (strcmp(*argv,"-CRL") == 0)
 743                         {
 744                         if (--argc < 1) goto bad;
 745                         crl_file= *(++argv);
 746                         }
 747                 else if (strcmp(*argv,"-crl_download") == 0)
 748                         crl_download = 1;
 749                 else if (strcmp(*argv,"-sess_out") == 0)
 750                         {
 751                         if (--argc < 1) goto bad;
 752                         sess_out = *(++argv);
 753                         }
 754                 else if (strcmp(*argv,"-sess_in") == 0)
 755                         {
 756                         if (--argc < 1) goto bad;
 757                         sess_in = *(++argv);
 758                         }
 759                 else if (strcmp(*argv,"-certform") == 0)
 760                         {
 761                         if (--argc < 1) goto bad;
 762                         cert_format = str2fmt(*(++argv));
 763                         }
 764                 else if (strcmp(*argv,"-CRLform") == 0)
 765                         {
 766                         if (--argc < 1) goto bad;
 767                         crl_format = str2fmt(*(++argv));
 768                         }
 769                 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm))
 770                         {
 771                         if (badarg)
 772                                 goto bad;
 773                         continue;
 774                         }
 775                 else if (strcmp(*argv,"-verify_return_error") == 0)
 776                         verify_return_error = 1;
 777                 else if (strcmp(*argv,"-verify_quiet") == 0)
 778                         verify_quiet = 1;
 779                 else if (strcmp(*argv,"-brief") == 0)
 780                         {
 781                         c_brief = 1;
 782                         verify_quiet = 1;
 783                         c_quiet = 1;
 784                         }
 785                 else if (args_excert(&argv, &argc, &badarg, bio_err, &exc))
 786                         {
 787                         if (badarg)
 788                                 goto bad;
 789                         continue;
 790                         }
 791                 else if (args_ssl(&argv, &argc, cctx, &badarg, bio_err, &ssl_args))
 792                         {
 793                         if (badarg)
 794                                 goto bad;
 795                         continue;
 796                         }
 797                 else if (strcmp(*argv,"-prexit") == 0)
 798                         prexit=1;
 799                 else if (strcmp(*argv,"-crlf") == 0)
 800                         crlf=1;
 801                 else if (strcmp(*argv,"-quiet") == 0)
 802                         {
 803                         c_quiet=1;
 804                         c_ign_eof=1;
 805                         }
 806                 else if (strcmp(*argv,"-ign_eof") == 0)
 807                         c_ign_eof=1;
 808                 else if (strcmp(*argv,"-no_ign_eof") == 0)
 809                         c_ign_eof=0;
 810                 else if (strcmp(*argv,"-pause") == 0)
 811                         c_Pause=1;
 812                 else if (strcmp(*argv,"-debug") == 0)
 813                         c_debug=1;
 814 #ifndef OPENSSL_NO_TLSEXT
 815                 else if (strcmp(*argv,"-tlsextdebug") == 0)
 816                         c_tlsextdebug=1;
 817                 else if (strcmp(*argv,"-status") == 0)
 818                         c_status_req=1;
 819                 else if (strcmp(*argv,"-proof_debug") == 0)
 820                         c_proof_debug=1;
 821 #endif
 822 #ifdef WATT32
 823                 else if (strcmp(*argv,"-wdebug") == 0)
 824                         dbug_init();
 825 #endif
 826                 else if (strcmp(*argv,"-msg") == 0)
 827                         c_msg=1;
 828                 else if (strcmp(*argv,"-msgfile") == 0)
 829                         {
 830                         if (--argc < 1) goto bad;
 831                         bio_c_msg = BIO_new_file(*(++argv), "w");
 832                         }
 833 #ifndef OPENSSL_NO_SSL_TRACE
 834                 else if (strcmp(*argv,"-trace") == 0)
 835                         c_msg=2;
 836 #endif
 837                 else if (strcmp(*argv,"-showcerts") == 0)
 838                         c_showcerts=1;
 839                 else if (strcmp(*argv,"-nbio_test") == 0)
 840                         nbio_test=1;
 841                 else if (strcmp(*argv,"-state") == 0)
 842                         state=1;
 843 #ifndef OPENSSL_NO_PSK
 844                 else if (strcmp(*argv,"-psk_identity") == 0)
 845                         {
 846                         if (--argc < 1) goto bad;
 847                         psk_identity=*(++argv);
 848                         }
 849                 else if (strcmp(*argv,"-psk") == 0)
 850                         {
 851                         size_t j;
 852
 853                         if (--argc < 1) goto bad;
 854                         psk_key=*(++argv);
 855                         for (j = 0; j < strlen(psk_key); j++)
 856                                 {
 857                                 if (isxdigit((unsigned char)psk_key[j]))
 858                                         continue;
 859                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
 860                                 goto bad;
 861                                 }
 862                         }
 863 #endif
 864 #ifndef OPENSSL_NO_SRP
 865                 else if (strcmp(*argv,"-srpuser") == 0)
 866                         {
 867                         if (--argc < 1) goto bad;
 868                         srp_arg.srplogin= *(++argv);
 869                         meth=TLSv1_client_method();
 870                         }
 871                 else if (strcmp(*argv,"-srppass") == 0)
 872                         {
 873                         if (--argc < 1) goto bad;
 874                         srppass= *(++argv);
 875                         meth=TLSv1_client_method();
 876                         }
 877                 else if (strcmp(*argv,"-srp_strength") == 0)
 878                         {
 879                         if (--argc < 1) goto bad;
 880                         srp_arg.strength=atoi(*(++argv));
 881                         BIO_printf(bio_err,"SRP minimal length for N is %d\n",srp_arg.strength);
 882                         meth=TLSv1_client_method();
 883                         }
 884                 else if (strcmp(*argv,"-srp_lateuser") == 0)
 885                         {
 886                         srp_lateuser= 1;
 887                         meth=TLSv1_client_method();
 888                         }
 889                 else if (strcmp(*argv,"-srp_moregroups") == 0)
 890                         {
 891                         srp_arg.amp=1;
 892                         meth=TLSv1_client_method();
 893                         }
 894 #endif
 895 #ifndef OPENSSL_NO_SSL2
 896                 else if (strcmp(*argv,"-ssl2") == 0)
 897                         meth=SSLv2_client_method();
 898 #endif
 899 #ifndef OPENSSL_NO_SSL3
 900                 else if (strcmp(*argv,"-ssl3") == 0)
 901                         meth=SSLv3_client_method();
 902 #endif
 903 #ifndef OPENSSL_NO_TLS1
 904                 else if (strcmp(*argv,"-tls1_2") == 0)
 905                         meth=TLSv1_2_client_method();
 906                 else if (strcmp(*argv,"-tls1_1") == 0)
 907                         meth=TLSv1_1_client_method();
 908                 else if (strcmp(*argv,"-tls1") == 0)
 909                         meth=TLSv1_client_method();
 910 #endif
 911 #ifndef OPENSSL_NO_DTLS1
 912                 else if (strcmp(*argv,"-dtls1") == 0)
 913                         {
 914                         meth=DTLSv1_client_method();
 915                         socket_type=SOCK_DGRAM;
 916                         }
 917                 else if (strcmp(*argv,"-timeout") == 0)
 918                         enable_timeouts=1;
 919                 else if (strcmp(*argv,"-mtu") == 0)
 920                         {
 921                         if (--argc < 1) goto bad;
 922                         socket_mtu = atol(*(++argv));
 923                         }
 924 #endif
 925                 else if (strcmp(*argv,"-keyform") == 0)
 926                         {
 927                         if (--argc < 1) goto bad;
 928                         key_format = str2fmt(*(++argv));
 929                         }
 930                 else if (strcmp(*argv,"-pass") == 0)
 931                         {
 932                         if (--argc < 1) goto bad;
 933                         passarg = *(++argv);
 934                         }
 935                 else if (strcmp(*argv,"-cert_chain") == 0)
 936                         {
 937                         if (--argc < 1) goto bad;
 938                         chain_file= *(++argv);
 939                         }
 940                 else if (strcmp(*argv,"-key") == 0)
 941                         {
 942                         if (--argc < 1) goto bad;
 943                         key_file= *(++argv);
 944                         }
 945                 else if (strcmp(*argv,"-reconnect") == 0)
 946                         {
 947                         reconnect=5;
 948                         }
 949                 else if (strcmp(*argv,"-CApath") == 0)
 950                         {
 951                         if (--argc < 1) goto bad;
 952                         CApath= *(++argv);
 953                         }
 954                 else if (strcmp(*argv,"-chainCApath") == 0)
 955                         {
 956                         if (--argc < 1) goto bad;
 957                         chCApath= *(++argv);
 958                         }
 959                 else if (strcmp(*argv,"-verifyCApath") == 0)
 960                         {
 961                         if (--argc < 1) goto bad;
 962                         vfyCApath= *(++argv);
 963                         }
 964                 else if (strcmp(*argv,"-build_chain") == 0)
 965                         build_chain = 1;
 966                 else if (strcmp(*argv,"-CAfile") == 0)
 967                         {
 968                         if (--argc < 1) goto bad;
 969                         CAfile= *(++argv);
 970                         }
 971                 else if (strcmp(*argv,"-chainCAfile") == 0)
 972                         {
 973                         if (--argc < 1) goto bad;
 974                         chCAfile= *(++argv);
 975                         }
 976                 else if (strcmp(*argv,"-verifyCAfile") == 0)
 977                         {
 978                         if (--argc < 1) goto bad;
 979                         vfyCAfile= *(++argv);
 980                         }
 981 #ifndef OPENSSL_NO_TLSEXT
 982 # ifndef OPENSSL_NO_NEXTPROTONEG
 983                 else if (strcmp(*argv,"-nextprotoneg") == 0)
 984                         {
 985                         if (--argc < 1) goto bad;
 986                         next_proto_neg_in = *(++argv);
 987                         }
 988 # endif
 989                 else if (strcmp(*argv,"-serverinfo") == 0)
 990                         {
 991                         char *c;
 992                         int start = 0;
 993                         int len;
 994
 995                         if (--argc < 1) goto bad;
 996                         c = *(++argv);
 997                         serverinfo_types_count = 0;
 998                         len = strlen(c);
 999                         for (i = 0; i <= len; ++i)
1000                                 {
1001                                 if (i == len || c[i] == ',')
1002                                         {
1003                                         serverinfo_types[serverinfo_types_count]
1004                                             = atoi(c+start);
1005                                         serverinfo_types_count++;
1006                                         start = i+1;
1007                                         }
1008                                 if (serverinfo_types_count == MAX_SI_TYPES)
1009                                         break;
1010                                 }
1011                         }
1012 #endif
1013 #ifdef FIONBIO
1014                 else if (strcmp(*argv,"-nbio") == 0)
1015                         { c_nbio=1; }
1016 #endif
1017                 else if (strcmp(*argv,"-starttls") == 0)
1018                         {
1019                         if (--argc < 1) goto bad;
1020                         ++argv;
1021                         if (strcmp(*argv,"smtp") == 0)
1022                                 starttls_proto = PROTO_SMTP;
1023                         else if (strcmp(*argv,"pop3") == 0)
1024                                 starttls_proto = PROTO_POP3;
1025                         else if (strcmp(*argv,"imap") == 0)
1026                                 starttls_proto = PROTO_IMAP;
1027                         else if (strcmp(*argv,"ftp") == 0)
1028                                 starttls_proto = PROTO_FTP;
1029                         else if (strcmp(*argv, "xmpp") == 0)
1030                                 starttls_proto = PROTO_XMPP;
1031                         else
1032                                 goto bad;
1033                         }
1034 #ifndef OPENSSL_NO_ENGINE
1035                 else if (strcmp(*argv,"-engine") == 0)
1036                         {
1037                         if (--argc < 1) goto bad;
1038                         engine_id = *(++argv);
1039                         }
1040                 else if (strcmp(*argv,"-ssl_client_engine") == 0)
1041                         {
1042                         if (--argc < 1) goto bad;
1043                         ssl_client_engine_id = *(++argv);
1044                         }
1045 #endif
1046                 else if (strcmp(*argv,"-rand") == 0)
1047                         {
1048                         if (--argc < 1) goto bad;
1049                         inrand= *(++argv);
1050                         }
1051 #ifndef OPENSSL_NO_TLSEXT
1052                 else if (strcmp(*argv,"-servername") == 0)
1053                         {
1054                         if (--argc < 1) goto bad;
1055                         servername= *(++argv);
1056                         /* meth=TLSv1_client_method(); */
1057                         }
1058 #endif
1059 #ifndef OPENSSL_NO_JPAKE
1060                 else if (strcmp(*argv,"-jpake") == 0)
1061                         {
1062                         if (--argc < 1) goto bad;
1063                         jpake_secret = *++argv;
1064                         }
1065 #endif
1066                 else if (strcmp(*argv,"-use_srtp") == 0)
1067                         {
1068                         if (--argc < 1) goto bad;
1069                         srtp_profiles = *(++argv);
1070                         }
1071                 else if (strcmp(*argv,"-keymatexport") == 0)
1072                         {
1073                         if (--argc < 1) goto bad;
1074                         keymatexportlabel= *(++argv);
1075                         }
1076                 else if (strcmp(*argv,"-keymatexportlen") == 0)
1077                         {
1078                         if (--argc < 1) goto bad;
1079                         keymatexportlen=atoi(*(++argv));
1080                         if (keymatexportlen == 0) goto bad;
1081                         }
1082                 else
1083                         {
1084                         BIO_printf(bio_err,"unknown option %s\n",*argv);
1085                         badop=1;
1086                         break;
1087                         }
1088                 argc--;
1089                 argv++;
1090                 }
1091         if (badop)
1092                 {
1093 bad:
1094                 sc_usage();
1095                 goto end;
1096                 }
1097
1098 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1099         if (jpake_secret)
1100                 {
1101                 if (psk_key)
1102                         {
1103                         BIO_printf(bio_err,
1104                                    "Can't use JPAKE and PSK together\n");
1105                         goto end;
1106                         }
1107                 psk_identity = "JPAKE";
1108                 }
1109 #endif
1110
1111         OpenSSL_add_ssl_algorithms();
1112         SSL_load_error_strings();
1113
1114 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
1115         next_proto.status = -1;
1116         if (next_proto_neg_in)
1117                 {
1118                 next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in);
1119                 if (next_proto.data == NULL)
1120                         {
1121                         BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
1122                         goto end;
1123                         }
1124                 }
1125         else
1126                 next_proto.data = NULL;
1127 #endif
1128
1129 #ifndef OPENSSL_NO_ENGINE
1130         e = setup_engine(bio_err, engine_id, 1);
1131         if (ssl_client_engine_id)
1132                 {
1133                 ssl_client_engine = ENGINE_by_id(ssl_client_engine_id);
1134                 if (!ssl_client_engine)
1135                         {
1136                         BIO_printf(bio_err,
1137                                         "Error getting client auth engine\n");
1138                         goto end;
1139                         }
1140                 }
1141
1142 #endif
1143         if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
1144                 {
1145                 BIO_printf(bio_err, "Error getting password\n");
1146                 goto end;
1147                 }
1148
1149         if (key_file == NULL)
1150                 key_file = cert_file;
1151
1152
1153         if (key_file)
1154
1155                 {
1156
1157                 key = load_key(bio_err, key_file, key_format, 0, pass, e,
1158                                "client certificate private key file");
1159                 if (!key)
1160                         {
1161                         ERR_print_errors(bio_err);
1162                         goto end;
1163                         }
1164
1165                 }
1166
1167         if (cert_file)
1168
1169                 {
1170                 cert = load_cert(bio_err,cert_file,cert_format,
1171                                 NULL, e, "client certificate file");
1172
1173                 if (!cert)
1174                         {
1175                         ERR_print_errors(bio_err);
1176                         goto end;
1177                         }
1178                 }
1179
1180         if (chain_file)
1181                 {
1182                 chain = load_certs(bio_err, chain_file,FORMAT_PEM,
1183                                         NULL, e, "client certificate chain");
1184                 if (!chain)
1185                         goto end;
1186                 }
1187
1188         if (crl_file)
1189                 {
1190                 X509_CRL *crl;
1191                 crl = load_crl(crl_file, crl_format);
1192                 if (!crl)
1193                         {
1194                         BIO_puts(bio_err, "Error loading CRL\n");
1195                         ERR_print_errors(bio_err);
1196                         goto end;
1197                         }
1198                 crls = sk_X509_CRL_new_null();
1199                 if (!crls || !sk_X509_CRL_push(crls, crl))
1200                         {
1201                         BIO_puts(bio_err, "Error adding CRL\n");
1202                         ERR_print_errors(bio_err);
1203                         X509_CRL_free(crl);
1204                         goto end;
1205                         }
1206                 }
1207
1208         if (!load_excert(&exc, bio_err))
1209                 goto end;
1210
1211         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1212                 && !RAND_status())
1213                 {
1214                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
1215                 }
1216         if (inrand != NULL)
1217                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
1218                         app_RAND_load_files(inrand));
1219
1220         if (bio_c_out == NULL)
1221                 {
1222                 if (c_quiet && !c_debug)
1223                         {
1224                         bio_c_out=BIO_new(BIO_s_null());
1225                         if (c_msg && !bio_c_msg)
1226                                 bio_c_msg=BIO_new_fp(stdout,BIO_NOCLOSE);
1227                         }
1228                 else
1229                         {
1230                         if (bio_c_out == NULL)
1231                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
1232                         }
1233                 }
1234
1235 #ifndef OPENSSL_NO_SRP
1236         if(!app_passwd(bio_err, srppass, NULL, &srp_arg.srppassin, NULL))
1237                 {
1238                 BIO_printf(bio_err, "Error getting password\n");
1239                 goto end;
1240                 }
1241 #endif
1242
1243         ctx=SSL_CTX_new(meth);
1244         if (ctx == NULL)
1245                 {
1246                 ERR_print_errors(bio_err);
1247                 goto end;
1248                 }
1249
1250         if (vpm)
1251                 SSL_CTX_set1_param(ctx, vpm);
1252
1253         if (!args_ssl_call(ctx, bio_err, cctx, ssl_args, 1, no_jpake))
1254                 {
1255                 ERR_print_errors(bio_err);
1256                 goto end;
1257                 }
1258
1259         if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile,
1260                                                 crls, crl_download))
1261                 {
1262                 BIO_printf(bio_err, "Error loading store locations\n");
1263                 ERR_print_errors(bio_err);
1264                 goto end;
1265                 }
1266
1267 #ifndef OPENSSL_NO_ENGINE
1268         if (ssl_client_engine)
1269                 {
1270                 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine))
1271                         {
1272                         BIO_puts(bio_err, "Error setting client auth engine\n");
1273                         ERR_print_errors(bio_err);
1274                         ENGINE_free(ssl_client_engine);
1275                         goto end;
1276                         }
1277                 ENGINE_free(ssl_client_engine);
1278                 }
1279 #endif
1280
1281 #ifndef OPENSSL_NO_PSK
1282 #ifdef OPENSSL_NO_JPAKE
1283         if (psk_key != NULL)
1284 #else
1285         if (psk_key != NULL || jpake_secret)
1286 #endif
1287                 {
1288                 if (c_debug)
1289                         BIO_printf(bio_c_out, "PSK key given or JPAKE in use, setting client callback\n");
1290                 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1291                 }
1292         if (srtp_profiles != NULL)
1293                 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
1294 #endif
1295         if (exc) ssl_ctx_set_excert(ctx, exc);
1296         /* DTLS: partial reads end up discarding unread UDP bytes :-(
1297          * Setting read ahead solves this problem.
1298          */
1299         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1300
1301 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
1302         if (next_proto.data)
1303                 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
1304 #endif
1305 #ifndef OPENSSL_NO_TLSEXT
1306                 if (serverinfo_types_count)
1307                         {
1308                         for (i = 0; i < serverinfo_types_count; i++)
1309                                 {
1310                                 SSL_CTX_set_custom_cli_ext(ctx,
1311                                                            serverinfo_types[i],
1312                                                            NULL,
1313                                                            serverinfo_cli_cb,
1314                                                            NULL);
1315                                 }
1316                         }
1317 #endif
1318
1319         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1320 #if 0
1321         else
1322                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
1323 #endif
1324
1325         SSL_CTX_set_verify(ctx,verify,verify_callback);
1326
1327         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1328                 (!SSL_CTX_set_default_verify_paths(ctx)))
1329                 {
1330                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
1331                 ERR_print_errors(bio_err);
1332                 /* goto end; */
1333                 }
1334
1335         ssl_ctx_add_crls(ctx, crls, crl_download);
1336         if (!set_cert_key_stuff(ctx,cert,key,chain,build_chain))
1337                 goto end;
1338
1339 #ifndef OPENSSL_NO_TLSEXT
1340         if (servername != NULL)
1341                 {
1342                 tlsextcbp.biodebug = bio_err;
1343                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1344                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1345                 }
1346 #ifndef OPENSSL_NO_SRP
1347         if (srp_arg.srplogin)
1348                 {
1349                 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin))
1350                         {
1351                         BIO_printf(bio_err,"Unable to set SRP username\n");
1352                         goto end;
1353                         }
1354                 srp_arg.msg = c_msg;
1355                 srp_arg.debug = c_debug ;
1356                 SSL_CTX_set_srp_cb_arg(ctx,&srp_arg);
1357                 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb);
1358                 SSL_CTX_set_srp_strength(ctx, srp_arg.strength);
1359                 if (c_msg || c_debug || srp_arg.amp == 0)
1360                         SSL_CTX_set_srp_verify_param_callback(ctx, ssl_srp_verify_param_cb);
1361                 }
1362
1363 #endif
1364         if (c_proof_debug)
1365                 SSL_CTX_set_tlsext_authz_server_audit_proof_cb(ctx,
1366                                                                audit_proof_cb);
1367 #endif
1368
1369         con=SSL_new(ctx);
1370         if (sess_in)
1371                 {
1372                 SSL_SESSION *sess;
1373                 BIO *stmp = BIO_new_file(sess_in, "r");
1374                 if (!stmp)
1375                         {
1376                         BIO_printf(bio_err, "Can't open session file %s\n",
1377                                                 sess_in);
1378                         ERR_print_errors(bio_err);
1379                         goto end;
1380                         }
1381                 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1382                 BIO_free(stmp);
1383                 if (!sess)
1384                         {
1385                         BIO_printf(bio_err, "Can't open session file %s\n",
1386                                                 sess_in);
1387                         ERR_print_errors(bio_err);
1388                         goto end;
1389                         }
1390                 SSL_set_session(con, sess);
1391                 SSL_SESSION_free(sess);
1392                 }
1393 #ifndef OPENSSL_NO_DANE
1394         SSL_pull_tlsa_record(con,host,port);
1395 #endif
1396 #ifndef OPENSSL_NO_TLSEXT
1397         if (servername != NULL)
1398                 {
1399                 if (!SSL_set_tlsext_host_name(con,servername))
1400                         {
1401                         BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
1402                         ERR_print_errors(bio_err);
1403                         goto end;
1404                         }
1405                 }
1406 #endif
1407 #ifndef OPENSSL_NO_KRB5
1408         if (con  &&  (kctx = kssl_ctx_new()) != NULL)
1409                 {
1410                 SSL_set0_kssl_ctx(con, kctx);
1411                 kssl_ctx_setstring(kctx, KSSL_SERVER, host);
1412                 }
1413 #endif  /* OPENSSL_NO_KRB5  */
1414 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
1415 #if 0
1416 #ifdef TLSEXT_TYPE_opaque_prf_input
1417         SSL_set_tlsext_opaque_prf_input(con, "Test client", 11);
1418 #endif
1419 #endif
1420
1421 re_start:
1422
1423         if (init_client(&s,host,port,socket_type) == 0)
1424                 {
1425                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
1426                 SHUTDOWN(s);
1427                 goto end;
1428                 }
1429         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
1430
1431 #ifdef FIONBIO
1432         if (c_nbio)
1433                 {
1434                 unsigned long l=1;
1435                 BIO_printf(bio_c_out,"turning on non blocking io\n");
1436                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
1437                         {
1438                         ERR_print_errors(bio_err);
1439                         goto end;
1440                         }
1441                 }
1442 #endif
1443         if (c_Pause & 0x01) SSL_set_debug(con, 1);
1444
1445         if ( SSL_version(con) == DTLS1_VERSION)
1446                 {
1447
1448                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
1449                 if (getsockname(s, &peer, (void *)&peerlen) < 0)
1450                         {
1451                         BIO_printf(bio_err, "getsockname:errno=%d\n",
1452                                 get_last_socket_error());
1453                         SHUTDOWN(s);
1454                         goto end;
1455                         }
1456
1457                 (void)BIO_ctrl_set_connected(sbio, 1, &peer);
1458
1459                 if (enable_timeouts)
1460                         {
1461                         timeout.tv_sec = 0;
1462                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
1463                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
1464
1465                         timeout.tv_sec = 0;
1466                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
1467                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
1468                         }
1469
1470                 if (socket_mtu > 28)
1471                         {
1472                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
1473                         SSL_set_mtu(con, socket_mtu - 28);
1474                         }
1475                 else
1476                         /* want to do MTU discovery */
1477                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
1478                 }
1479         else
1480                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
1481
1482         if (nbio_test)
1483                 {
1484                 BIO *test;
1485
1486                 test=BIO_new(BIO_f_nbio_test());
1487                 sbio=BIO_push(test,sbio);
1488                 }
1489
1490         if (c_debug)
1491                 {
1492                 SSL_set_debug(con, 1);
1493                 BIO_set_callback(sbio,bio_dump_callback);
1494                 BIO_set_callback_arg(sbio,(char *)bio_c_out);
1495                 }
1496         if (c_msg)
1497                 {
1498 #ifndef OPENSSL_NO_SSL_TRACE
1499                 if (c_msg == 2)
1500                         SSL_set_msg_callback(con, SSL_trace);
1501                 else
1502 #endif
1503                         SSL_set_msg_callback(con, msg_cb);
1504                 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out);
1505                 }
1506 #ifndef OPENSSL_NO_TLSEXT
1507         if (c_tlsextdebug)
1508                 {
1509                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1510                 SSL_set_tlsext_debug_arg(con, bio_c_out);
1511                 }
1512         if (c_status_req)
1513                 {
1514                 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
1515                 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
1516                 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
1517 #if 0
1518 {
1519 STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null();
1520 OCSP_RESPID *id = OCSP_RESPID_new();
1521 id->value.byKey = ASN1_OCTET_STRING_new();
1522 id->type = V_OCSP_RESPID_KEY;
1523 ASN1_STRING_set(id->value.byKey, "Hello World", -1);
1524 sk_OCSP_RESPID_push(ids, id);
1525 SSL_set_tlsext_status_ids(con, ids);
1526 }
1527 #endif
1528                 }
1529 #endif
1530 #ifndef OPENSSL_NO_JPAKE
1531         if (jpake_secret)
1532                 jpake_client_auth(bio_c_out, sbio, jpake_secret);
1533 #endif
1534
1535         SSL_set_bio(con,sbio,sbio);
1536         SSL_set_connect_state(con);
1537
1538         /* ok, lets connect */
1539         width=SSL_get_fd(con)+1;
1540
1541         read_tty=1;
1542         write_tty=0;
1543         tty_on=0;
1544         read_ssl=1;
1545         write_ssl=1;
1546
1547         cbuf_len=0;
1548         cbuf_off=0;
1549         sbuf_len=0;
1550         sbuf_off=0;
1551
1552         /* This is an ugly hack that does a lot of assumptions */
1553         /* We do have to handle multi-line responses which may come
1554            in a single packet or not. We therefore have to use
1555            BIO_gets() which does need a buffering BIO. So during
1556            the initial chitchat we do push a buffering BIO into the
1557            chain that is removed again later on to not disturb the
1558            rest of the s_client operation. */
1559         if (starttls_proto == PROTO_SMTP)
1560                 {
1561                 int foundit=0;
1562                 BIO *fbio = BIO_new(BIO_f_buffer());
1563                 BIO_push(fbio, sbio);
1564                 /* wait for multi-line response to end from SMTP */
1565                 do
1566                         {
1567                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1568                         }
1569                 while (mbuf_len>3 && mbuf[3]=='-');
1570                 /* STARTTLS command requires EHLO... */
1571                 BIO_printf(fbio,"EHLO openssl.client.net\r\n");
1572                 (void)BIO_flush(fbio);
1573                 /* wait for multi-line response to end EHLO SMTP response */
1574                 do
1575                         {
1576                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1577                         if (strstr(mbuf,"STARTTLS"))
1578                                 foundit=1;
1579                         }
1580                 while (mbuf_len>3 && mbuf[3]=='-');
1581                 (void)BIO_flush(fbio);
1582                 BIO_pop(fbio);
1583                 BIO_free(fbio);
1584                 if (!foundit)
1585                         BIO_printf(bio_err,
1586                                    "didn't found starttls in server response,"
1587                                    " try anyway...\n");
1588                 BIO_printf(sbio,"STARTTLS\r\n");
1589                 BIO_read(sbio,sbuf,BUFSIZZ);
1590                 }
1591         else if (starttls_proto == PROTO_POP3)
1592                 {
1593                 BIO_read(sbio,mbuf,BUFSIZZ);
1594                 BIO_printf(sbio,"STLS\r\n");
1595                 BIO_read(sbio,sbuf,BUFSIZZ);
1596                 }
1597         else if (starttls_proto == PROTO_IMAP)
1598                 {
1599                 int foundit=0;
1600                 BIO *fbio = BIO_new(BIO_f_buffer());
1601                 BIO_push(fbio, sbio);
1602                 BIO_gets(fbio,mbuf,BUFSIZZ);
1603                 /* STARTTLS command requires CAPABILITY... */
1604                 BIO_printf(fbio,". CAPABILITY\r\n");
1605                 (void)BIO_flush(fbio);
1606                 /* wait for multi-line CAPABILITY response */
1607                 do
1608                         {
1609                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1610                         if (strstr(mbuf,"STARTTLS"))
1611                                 foundit=1;
1612                         }
1613                 while (mbuf_len>3 && mbuf[0]!='.');
1614                 (void)BIO_flush(fbio);
1615                 BIO_pop(fbio);
1616                 BIO_free(fbio);
1617                 if (!foundit)
1618                         BIO_printf(bio_err,
1619                                    "didn't found STARTTLS in server response,"
1620                                    " try anyway...\n");
1621                 BIO_printf(sbio,". STARTTLS\r\n");
1622                 BIO_read(sbio,sbuf,BUFSIZZ);
1623                 }
1624         else if (starttls_proto == PROTO_FTP)
1625                 {
1626                 BIO *fbio = BIO_new(BIO_f_buffer());
1627                 BIO_push(fbio, sbio);
1628                 /* wait for multi-line response to end from FTP */
1629                 do
1630                         {
1631                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1632                         }
1633                 while (mbuf_len>3 && mbuf[3]=='-');
1634                 (void)BIO_flush(fbio);
1635                 BIO_pop(fbio);
1636                 BIO_free(fbio);
1637                 BIO_printf(sbio,"AUTH TLS\r\n");
1638                 BIO_read(sbio,sbuf,BUFSIZZ);
1639                 }
1640         if (starttls_proto == PROTO_XMPP)
1641                 {
1642                 int seen = 0;
1643                 BIO_printf(sbio,"<stream:stream "
1644                     "xmlns:stream='http://etherx.jabber.org/streams' "
1645                     "xmlns='jabber:client' to='%s' version='1.0'>", host);
1646                 seen = BIO_read(sbio,mbuf,BUFSIZZ);
1647                 mbuf[seen] = 0;
1648                 while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'"))
1649                         {
1650                         if (strstr(mbuf, "/stream:features>"))
1651                                 goto shut;
1652                         seen = BIO_read(sbio,mbuf,BUFSIZZ);
1653                         mbuf[seen] = 0;
1654                         }
1655                 BIO_printf(sbio, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
1656                 seen = BIO_read(sbio,sbuf,BUFSIZZ);
1657                 sbuf[seen] = 0;
1658                 if (!strstr(sbuf, "<proceed"))
1659                         goto shut;
1660                 mbuf[0] = 0;
1661                 }
1662
1663         for (;;)
1664                 {
1665                 FD_ZERO(&readfds);
1666                 FD_ZERO(&writefds);
1667
1668                 if ((SSL_version(con) == DTLS1_VERSION) &&
1669                         DTLSv1_get_timeout(con, &timeout))
1670                         timeoutp = &timeout;
1671                 else
1672                         timeoutp = NULL;
1673
1674                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
1675                         {
1676                         in_init=1;
1677                         tty_on=0;
1678                         }
1679                 else
1680                         {
1681                         tty_on=1;
1682                         if (in_init)
1683                                 {
1684                                 in_init=0;
1685 #if 0 /* This test doesn't really work as intended (needs to be fixed) */
1686 #ifndef OPENSSL_NO_TLSEXT
1687                                 if (servername != NULL && !SSL_session_reused(con))
1688                                         {
1689                                         BIO_printf(bio_c_out,"Server did %sacknowledge servername extension.\n",tlsextcbp.ack?"":"not ");
1690                                         }
1691 #endif
1692 #endif
1693                                 if (sess_out)
1694                                         {
1695                                         BIO *stmp = BIO_new_file(sess_out, "w");
1696                                         if (stmp)
1697                                                 {
1698                                                 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
1699                                                 BIO_free(stmp);
1700                                                 }
1701                                         else
1702                                                 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
1703                                         }
1704                                 if (c_brief)
1705                                         {
1706                                         BIO_puts(bio_err,
1707                                                 "CONNECTION ESTABLISHED\n");
1708                                         print_ssl_summary(bio_err, con);
1709                                         }
1710                                 print_stuff(bio_c_out,con,full_log);
1711                                 if (full_log > 0) full_log--;
1712
1713                                 if (starttls_proto)
1714                                         {
1715                                         BIO_printf(bio_err,"%s",mbuf);
1716                                         /* We don't need to know any more */
1717                                         starttls_proto = PROTO_OFF;
1718                                         }
1719
1720                                 if (reconnect)
1721                                         {
1722                                         reconnect--;
1723                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
1724                                         SSL_shutdown(con);
1725                                         SSL_set_connect_state(con);
1726                                         SHUTDOWN(SSL_get_fd(con));
1727                                         goto re_start;
1728                                         }
1729                                 }
1730                         }
1731
1732                 ssl_pending = read_ssl && SSL_pending(con);
1733
1734                 if (!ssl_pending)
1735                         {
1736 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined (OPENSSL_SYS_BEOS_R5)
1737                         if (tty_on)
1738                                 {
1739                                 if (read_tty)  openssl_fdset(fileno(stdin),&readfds);
1740                                 if (write_tty) openssl_fdset(fileno(stdout),&writefds);
1741                                 }
1742                         if (read_ssl)
1743                                 openssl_fdset(SSL_get_fd(con),&readfds);
1744                         if (write_ssl)
1745                                 openssl_fdset(SSL_get_fd(con),&writefds);
1746 #else
1747                         if(!tty_on || !write_tty) {
1748                                 if (read_ssl)
1749                                         openssl_fdset(SSL_get_fd(con),&readfds);
1750                                 if (write_ssl)
1751                                         openssl_fdset(SSL_get_fd(con),&writefds);
1752                         }
1753 #endif
1754 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
1755                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1756
1757                         /* Note: under VMS with SOCKETSHR the second parameter
1758                          * is currently of type (int *) whereas under other
1759                          * systems it is (void *) if you don't have a cast it
1760                          * will choke the compiler: if you do have a cast then
1761                          * you can either go for (int *) or (void *).
1762                          */
1763 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1764                         /* Under Windows/DOS we make the assumption that we can
1765                          * always write to the tty: therefore if we need to
1766                          * write to the tty we just fall through. Otherwise
1767                          * we timeout the select every second and see if there
1768                          * are any keypresses. Note: this is a hack, in a proper
1769                          * Windows application we wouldn't do this.
1770                          */
1771                         i=0;
1772                         if(!write_tty) {
1773                                 if(read_tty) {
1774                                         tv.tv_sec = 1;
1775                                         tv.tv_usec = 0;
1776                                         i=select(width,(void *)&readfds,(void *)&writefds,
1777                                                  NULL,&tv);
1778 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1779                                         if(!i && (!_kbhit() || !read_tty) ) continue;
1780 #else
1781                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
1782 #endif
1783                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1784                                          NULL,timeoutp);
1785                         }
1786 #elif defined(OPENSSL_SYS_NETWARE)
1787                         if(!write_tty) {
1788                                 if(read_tty) {
1789                                         tv.tv_sec = 1;
1790                                         tv.tv_usec = 0;
1791                                         i=select(width,(void *)&readfds,(void *)&writefds,
1792                                                 NULL,&tv);
1793                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1794                                         NULL,timeoutp);
1795                         }
1796 #elif defined(OPENSSL_SYS_BEOS_R5)
1797                         /* Under BeOS-R5 the situation is similar to DOS */
1798                         i=0;
1799                         stdin_set = 0;
1800                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
1801                         if(!write_tty) {
1802                                 if(read_tty) {
1803                                         tv.tv_sec = 1;
1804                                         tv.tv_usec = 0;
1805                                         i=select(width,(void *)&readfds,(void *)&writefds,
1806                                                  NULL,&tv);
1807                                         if (read(fileno(stdin), sbuf, 0) >= 0)
1808                                                 stdin_set = 1;
1809                                         if (!i && (stdin_set != 1 || !read_tty))
1810                                                 continue;
1811                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1812                                          NULL,timeoutp);
1813                         }
1814                         (void)fcntl(fileno(stdin), F_SETFL, 0);
1815 #else
1816                         i=select(width,(void *)&readfds,(void *)&writefds,
1817                                  NULL,timeoutp);
1818 #endif
1819                         if ( i < 0)
1820                                 {
1821                                 BIO_printf(bio_err,"bad select %d\n",
1822                                 get_last_socket_error());
1823                                 goto shut;
1824                                 /* goto end; */
1825                                 }
1826                         }
1827
1828                 if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
1829                         {
1830                         BIO_printf(bio_err,"TIMEOUT occured\n");
1831                         }
1832
1833                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
1834                         {
1835                         k=SSL_write(con,&(cbuf[cbuf_off]),
1836                                 (unsigned int)cbuf_len);
1837                         switch (SSL_get_error(con,k))
1838                                 {
1839                         case SSL_ERROR_NONE:
1840                                 cbuf_off+=k;
1841                                 cbuf_len-=k;
1842                                 if (k <= 0) goto end;
1843                                 /* we have done a  write(con,NULL,0); */
1844                                 if (cbuf_len <= 0)
1845                                         {
1846                                         read_tty=1;
1847                                         write_ssl=0;
1848                                         }
1849                                 else /* if (cbuf_len > 0) */
1850                                         {
1851                                         read_tty=0;
1852                                         write_ssl=1;
1853                                         }
1854                                 break;
1855                         case SSL_ERROR_WANT_WRITE:
1856                                 BIO_printf(bio_c_out,"write W BLOCK\n");
1857                                 write_ssl=1;
1858                                 read_tty=0;
1859                                 break;
1860                         case SSL_ERROR_WANT_READ:
1861                                 BIO_printf(bio_c_out,"write R BLOCK\n");
1862                                 write_tty=0;
1863                                 read_ssl=1;
1864                                 write_ssl=0;
1865                                 break;
1866                         case SSL_ERROR_WANT_X509_LOOKUP:
1867                                 BIO_printf(bio_c_out,"write X BLOCK\n");
1868                                 break;
1869                         case SSL_ERROR_ZERO_RETURN:
1870                                 if (cbuf_len != 0)
1871                                         {
1872                                         BIO_printf(bio_c_out,"shutdown\n");
1873                                         ret = 0;
1874                                         goto shut;
1875                                         }
1876                                 else
1877                                         {
1878                                         read_tty=1;
1879                                         write_ssl=0;
1880                                         break;
1881                                         }
1882
1883                         case SSL_ERROR_SYSCALL:
1884                                 if ((k != 0) || (cbuf_len != 0))
1885                                         {
1886                                         BIO_printf(bio_err,"write:errno=%d\n",
1887                                                 get_last_socket_error());
1888                                         goto shut;
1889                                         }
1890                                 else
1891                                         {
1892                                         read_tty=1;
1893                                         write_ssl=0;
1894                                         }
1895                                 break;
1896                         case SSL_ERROR_SSL:
1897                                 ERR_print_errors(bio_err);
1898                                 goto shut;
1899                                 }
1900                         }
1901 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
1902                 /* Assume Windows/DOS/BeOS can always write */
1903                 else if (!ssl_pending && write_tty)
1904 #else
1905                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
1906 #endif
1907                         {
1908 #ifdef CHARSET_EBCDIC
1909                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
1910 #endif
1911                         i=raw_write_stdout(&(sbuf[sbuf_off]),sbuf_len);
1912
1913                         if (i <= 0)
1914                                 {
1915                                 BIO_printf(bio_c_out,"DONE\n");
1916                                 ret = 0;
1917                                 goto shut;
1918                                 /* goto end; */
1919                                 }
1920
1921                         sbuf_len-=i;;
1922                         sbuf_off+=i;
1923                         if (sbuf_len <= 0)
1924                                 {
1925                                 read_ssl=1;
1926                                 write_tty=0;
1927                                 }
1928                         }
1929                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
1930                         {
1931 #ifdef RENEG
1932 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
1933 #endif
1934 #if 1
1935                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
1936 #else
1937 /* Demo for pending and peek :-) */
1938                         k=SSL_read(con,sbuf,16);
1939 { char zbuf[10240];
1940 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
1941 }
1942 #endif
1943
1944                         switch (SSL_get_error(con,k))
1945                                 {
1946                         case SSL_ERROR_NONE:
1947                                 if (k <= 0)
1948                                         goto end;
1949                                 sbuf_off=0;
1950                                 sbuf_len=k;
1951
1952                                 read_ssl=0;
1953                                 write_tty=1;
1954                                 break;
1955                         case SSL_ERROR_WANT_WRITE:
1956                                 BIO_printf(bio_c_out,"read W BLOCK\n");
1957                                 write_ssl=1;
1958                                 read_tty=0;
1959                                 break;
1960                         case SSL_ERROR_WANT_READ:
1961                                 BIO_printf(bio_c_out,"read R BLOCK\n");
1962                                 write_tty=0;
1963                                 read_ssl=1;
1964                                 if ((read_tty == 0) && (write_ssl == 0))
1965                                         write_ssl=1;
1966                                 break;
1967                         case SSL_ERROR_WANT_X509_LOOKUP:
1968                                 BIO_printf(bio_c_out,"read X BLOCK\n");
1969                                 break;
1970                         case SSL_ERROR_SYSCALL:
1971                                 ret=get_last_socket_error();
1972                                 if (c_brief)
1973                                         BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n");
1974                                 else
1975                                         BIO_printf(bio_err,"read:errno=%d\n",ret);
1976                                 goto shut;
1977                         case SSL_ERROR_ZERO_RETURN:
1978                                 BIO_printf(bio_c_out,"closed\n");
1979                                 ret=0;
1980                                 goto shut;
1981                         case SSL_ERROR_SSL:
1982                                 ERR_print_errors(bio_err);
1983                                 goto shut;
1984                                 /* break; */
1985                                 }
1986                         }
1987
1988 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1989 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1990                 else if (_kbhit())
1991 #else
1992                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
1993 #endif
1994 #elif defined (OPENSSL_SYS_NETWARE)
1995                 else if (_kbhit())
1996 #elif defined(OPENSSL_SYS_BEOS_R5)
1997                 else if (stdin_set)
1998 #else
1999                 else if (FD_ISSET(fileno(stdin),&readfds))
2000 #endif
2001                         {
2002                         if (crlf)
2003                                 {
2004                                 int j, lf_num;
2005
2006                                 i=raw_read_stdin(cbuf,BUFSIZZ/2);
2007                                 lf_num = 0;
2008                                 /* both loops are skipped when i <= 0 */
2009                                 for (j = 0; j < i; j++)
2010                                         if (cbuf[j] == '\n')
2011                                                 lf_num++;
2012                                 for (j = i-1; j >= 0; j--)
2013                                         {
2014                                         cbuf[j+lf_num] = cbuf[j];
2015                                         if (cbuf[j] == '\n')
2016                                                 {
2017                                                 lf_num--;
2018                                                 i++;
2019                                                 cbuf[j+lf_num] = '\r';
2020                                                 }
2021                                         }
2022                                 assert(lf_num == 0);
2023                                 }
2024                         else
2025                                 i=raw_read_stdin(cbuf,BUFSIZZ);
2026
2027                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
2028                                 {
2029                                 BIO_printf(bio_err,"DONE\n");
2030                                 ret=0;
2031                                 goto shut;
2032                                 }
2033
2034                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
2035                                 {
2036                                 BIO_printf(bio_err,"RENEGOTIATING\n");
2037                                 SSL_renegotiate(con);
2038                                 cbuf_len=0;
2039                                 }
2040 #ifndef OPENSSL_NO_HEARTBEATS
2041                         else if ((!c_ign_eof) && (cbuf[0] == 'B'))
2042                                 {
2043                                 BIO_printf(bio_err,"HEARTBEATING\n");
2044                                 SSL_heartbeat(con);
2045                                 cbuf_len=0;
2046                                 }
2047 #endif
2048                         else
2049                                 {
2050                                 cbuf_len=i;
2051                                 cbuf_off=0;
2052 #ifdef CHARSET_EBCDIC
2053                                 ebcdic2ascii(cbuf, cbuf, i);
2054 #endif
2055                                 }
2056
2057                         write_ssl=1;
2058                         read_tty=0;
2059                         }
2060                 }
2061
2062         ret=0;
2063 shut:
2064         if (in_init)
2065                 print_stuff(bio_c_out,con,full_log);
2066         SSL_shutdown(con);
2067         SHUTDOWN(SSL_get_fd(con));
2068 end:
2069         if (con != NULL)
2070                 {
2071                 if (prexit != 0)
2072                         print_stuff(bio_c_out,con,1);
2073                 SSL_free(con);
2074                 }
2075 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2076         if (next_proto.data)
2077                 OPENSSL_free(next_proto.data);
2078 #endif
2079         if (ctx != NULL) SSL_CTX_free(ctx);
2080         if (cert)
2081                 X509_free(cert);
2082         if (crls)
2083                 sk_X509_CRL_pop_free(crls, X509_CRL_free);
2084         if (key)
2085                 EVP_PKEY_free(key);
2086         if (chain)
2087                 sk_X509_pop_free(chain, X509_free);
2088         if (pass)
2089                 OPENSSL_free(pass);
2090         if (vpm)
2091                 X509_VERIFY_PARAM_free(vpm);
2092         ssl_excert_free(exc);
2093         if (ssl_args)
2094                 sk_OPENSSL_STRING_free(ssl_args);
2095         if (cctx)
2096                 SSL_CONF_CTX_free(cctx);
2097 #ifndef OPENSSL_NO_JPAKE
2098         if (jpake_secret && psk_key)
2099                 OPENSSL_free(psk_key);
2100 #endif
2101         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
2102         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
2103         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
2104         if (bio_c_out != NULL)
2105                 {
2106                 BIO_free(bio_c_out);
2107                 bio_c_out=NULL;
2108                 }
2109         if (bio_c_msg != NULL)
2110                 {
2111                 BIO_free(bio_c_msg);
2112                 bio_c_msg=NULL;
2113                 }
2114         apps_shutdown();
2115         OPENSSL_EXIT(ret);
2116         }
2117
2118
2119 static void print_stuff(BIO *bio, SSL *s, int full)
2120         {
2121         X509 *peer=NULL;
2122         char *p;
2123         static const char *space="                ";
2124         char buf[BUFSIZ];
2125         STACK_OF(X509) *sk;
2126         STACK_OF(X509_NAME) *sk2;
2127         const SSL_CIPHER *c;
2128         X509_NAME *xn;
2129         int j,i;
2130 #ifndef OPENSSL_NO_COMP
2131         const COMP_METHOD *comp, *expansion;
2132 #endif
2133         unsigned char *exportedkeymat;
2134
2135         if (full)
2136                 {
2137                 int got_a_chain = 0;
2138
2139                 sk=SSL_get_peer_cert_chain(s);
2140                 if (sk != NULL)
2141                         {
2142                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
2143
2144                         BIO_printf(bio,"---\nCertificate chain\n");
2145                         for (i=0; i<sk_X509_num(sk); i++)
2146                                 {
2147                                 X509_NAME_oneline(X509_get_subject_name(
2148                                         sk_X509_value(sk,i)),buf,sizeof buf);
2149                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
2150                                 X509_NAME_oneline(X509_get_issuer_name(
2151                                         sk_X509_value(sk,i)),buf,sizeof buf);
2152                                 BIO_printf(bio,"   i:%s\n",buf);
2153                                 if (c_showcerts)
2154                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
2155                                 }
2156                         }
2157
2158                 BIO_printf(bio,"---\n");
2159                 peer=SSL_get_peer_certificate(s);
2160                 if (peer != NULL)
2161                         {
2162                         BIO_printf(bio,"Server certificate\n");
2163                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
2164                                 PEM_write_bio_X509(bio,peer);
2165                         X509_NAME_oneline(X509_get_subject_name(peer),
2166                                 buf,sizeof buf);
2167                         BIO_printf(bio,"subject=%s\n",buf);
2168                         X509_NAME_oneline(X509_get_issuer_name(peer),
2169                                 buf,sizeof buf);
2170                         BIO_printf(bio,"issuer=%s\n",buf);
2171                         }
2172                 else
2173                         BIO_printf(bio,"no peer certificate available\n");
2174
2175                 sk2=SSL_get_client_CA_list(s);
2176                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
2177                         {
2178                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
2179                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
2180                                 {
2181                                 xn=sk_X509_NAME_value(sk2,i);
2182                                 X509_NAME_oneline(xn,buf,sizeof(buf));
2183                                 BIO_write(bio,buf,strlen(buf));
2184                                 BIO_write(bio,"\n",1);
2185                                 }
2186                         }
2187                 else
2188                         {
2189                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
2190                         }
2191                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
2192                 if (p != NULL)
2193                         {
2194                         /* This works only for SSL 2.  In later protocol
2195                          * versions, the client does not know what other
2196                          * ciphers (in addition to the one to be used
2197                          * in the current connection) the server supports. */
2198
2199                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
2200                         j=i=0;
2201                         while (*p)
2202                                 {
2203                                 if (*p == ':')
2204                                         {
2205                                         BIO_write(bio,space,15-j%25);
2206                                         i++;
2207                                         j=0;
2208                                         BIO_write(bio,((i%3)?" ":"\n"),1);
2209                                         }
2210                                 else
2211                                         {
2212                                         BIO_write(bio,p,1);
2213                                         j++;
2214                                         }
2215                                 p++;
2216                                 }
2217                         BIO_write(bio,"\n",1);
2218                         }
2219
2220                 ssl_print_sigalgs(bio, s);
2221                 ssl_print_tmp_key(bio, s);
2222
2223                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
2224                         BIO_number_read(SSL_get_rbio(s)),
2225                         BIO_number_written(SSL_get_wbio(s)));
2226                 }
2227         BIO_printf(bio,(SSL_cache_hit(s)?"---\nReused, ":"---\nNew, "));
2228         c=SSL_get_current_cipher(s);
2229         BIO_printf(bio,"%s, Cipher is %s\n",
2230                 SSL_CIPHER_get_version(c),
2231                 SSL_CIPHER_get_name(c));
2232         if (peer != NULL) {
2233                 EVP_PKEY *pktmp;
2234                 pktmp = X509_get_pubkey(peer);
2235                 BIO_printf(bio,"Server public key is %d bit\n",
2236                                                          EVP_PKEY_bits(pktmp));
2237                 EVP_PKEY_free(pktmp);
2238         }
2239         BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
2240                         SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
2241 #ifndef OPENSSL_NO_COMP
2242         comp=SSL_get_current_compression(s);
2243         expansion=SSL_get_current_expansion(s);
2244         BIO_printf(bio,"Compression: %s\n",
2245                 comp ? SSL_COMP_get_name(comp) : "NONE");
2246         BIO_printf(bio,"Expansion: %s\n",
2247                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
2248 #endif
2249
2250 #ifdef SSL_DEBUG
2251         {
2252         /* Print out local port of connection: useful for debugging */
2253         int sock;
2254         struct sockaddr_in ladd;
2255         socklen_t ladd_size = sizeof(ladd);
2256         sock = SSL_get_fd(s);
2257         getsockname(sock, (struct sockaddr *)&ladd, &ladd_size);
2258         BIO_printf(bio_c_out, "LOCAL PORT is %u\n", ntohs(ladd.sin_port));
2259         }
2260 #endif
2261
2262 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2263         if (next_proto.status != -1) {
2264                 const unsigned char *proto;
2265                 unsigned int proto_len;
2266                 SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
2267                 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
2268                 BIO_write(bio, proto, proto_len);
2269                 BIO_write(bio, "\n", 1);
2270         }
2271 #endif
2272
2273         {
2274         SRTP_PROTECTION_PROFILE *srtp_profile=SSL_get_selected_srtp_profile(s);
2275
2276         if(srtp_profile)
2277                 BIO_printf(bio,"SRTP Extension negotiated, profile=%s\n",
2278                            srtp_profile->name);
2279         }
2280
2281         SSL_SESSION_print(bio,SSL_get_session(s));
2282         if (keymatexportlabel != NULL)
2283                 {
2284                 BIO_printf(bio, "Keying material exporter:\n");
2285                 BIO_printf(bio, "    Label: '%s'\n", keymatexportlabel);
2286                 BIO_printf(bio, "    Length: %i bytes\n", keymatexportlen);
2287                 exportedkeymat = OPENSSL_malloc(keymatexportlen);
2288                 if (exportedkeymat != NULL)
2289                         {
2290                         if (!SSL_export_keying_material(s, exportedkeymat,
2291                                                         keymatexportlen,
2292                                                         keymatexportlabel,
2293                                                         strlen(keymatexportlabel),
2294                                                         NULL, 0, 0))
2295                                 {
2296                                 BIO_printf(bio, "    Error\n");
2297                                 }
2298                         else
2299                                 {
2300                                 BIO_printf(bio, "    Keying material: ");
2301                                 for (i=0; i<keymatexportlen; i++)
2302                                         BIO_printf(bio, "%02X",
2303                                                    exportedkeymat[i]);
2304                                 BIO_printf(bio, "\n");
2305                                 }
2306                         OPENSSL_free(exportedkeymat);
2307                         }
2308                 }
2309         BIO_printf(bio,"---\n");
2310         if (peer != NULL)
2311                 X509_free(peer);
2312         /* flush, or debugging output gets mixed with http response */
2313         (void)BIO_flush(bio);
2314         }
2315
2316 #ifndef OPENSSL_NO_TLSEXT
2317
2318 static int ocsp_resp_cb(SSL *s, void *arg)
2319         {
2320         const unsigned char *p;
2321         int len;
2322         OCSP_RESPONSE *rsp;
2323         len = SSL_get_tlsext_status_ocsp_resp(s, &p);
2324         BIO_puts(arg, "OCSP response: ");
2325         if (!p)
2326                 {
2327                 BIO_puts(arg, "no response sent\n");
2328                 return 1;
2329                 }
2330         rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
2331         if (!rsp)
2332                 {
2333                 BIO_puts(arg, "response parse error\n");
2334                 BIO_dump_indent(arg, (char *)p, len, 4);
2335                 return 0;
2336                 }
2337         BIO_puts(arg, "\n======================================\n");
2338         OCSP_RESPONSE_print(arg, rsp, 0);
2339         BIO_puts(arg, "======================================\n");
2340         OCSP_RESPONSE_free(rsp);
2341         return 1;
2342         }
2343
2344 static int audit_proof_cb(SSL *s, void *arg)
2345         {
2346         const unsigned char *proof;
2347         size_t proof_len;
2348         size_t i;
2349         SSL_SESSION *sess = SSL_get_session(s);
2350
2351         proof = SSL_SESSION_get_tlsext_authz_server_audit_proof(sess,
2352                                                                 &proof_len);
2353         if (proof != NULL)
2354                 {
2355                 BIO_printf(bio_c_out, "Audit proof: ");
2356                 for (i = 0; i < proof_len; ++i)
2357                         BIO_printf(bio_c_out, "%02X", proof[i]);
2358                 BIO_printf(bio_c_out, "\n");
2359                 }
2360         else
2361                 {
2362                 BIO_printf(bio_c_out, "No audit proof found.\n");
2363                 }
2364         return 1;
2365         }
2366 #endif