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         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 297         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 298         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 299         BIO_printf(bio_err," -key arg      - Private key file to use, in cert file if\n");
 300         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 301         BIO_printf(bio_err," -keyform arg  - key format (PEM or DER) PEM default\n");
 302         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 303         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 304         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 305         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 306         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 307         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
 308         BIO_printf(bio_err," -debug        - extra output\n");
 309 #ifdef WATT32
 310         BIO_printf(bio_err," -wdebug       - WATT-32 tcp debugging\n");
 311 #endif
 312         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 313         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
 314         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
 315 #ifdef FIONBIO
 316         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 317 #endif
 318         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 319         BIO_printf(bio_err," -quiet        - no s_client output\n");
 320         BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
 321         BIO_printf(bio_err," -no_ign_eof   - don't ignore input eof\n");
 322 #ifndef OPENSSL_NO_PSK
 323         BIO_printf(bio_err," -psk_identity arg - PSK identity\n");
 324         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
 325 # ifndef OPENSSL_NO_JPAKE
 326         BIO_printf(bio_err," -jpake arg    - JPAKE secret to use\n");
 327 # endif
 328 #endif
 329 #ifndef OPENSSL_NO_SRP
 330         BIO_printf(bio_err," -srpuser user     - SRP authentification for 'user'\n");
 331         BIO_printf(bio_err," -srppass arg      - password for 'user'\n");
 332         BIO_printf(bio_err," -srp_lateuser     - SRP username into second ClientHello message\n");
 333         BIO_printf(bio_err," -srp_moregroups   - Tolerate other than the known g N values.\n");
 334         BIO_printf(bio_err," -srp_strength int - minimal mength in bits for N (default %d).\n",SRP_MINIMAL_N);
 335 #endif
 336         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 337         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 338         BIO_printf(bio_err," -tls1_2       - just use TLSv1.2\n");
 339         BIO_printf(bio_err," -tls1_1       - just use TLSv1.1\n");
 340         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 341         BIO_printf(bio_err," -dtls1        - just use DTLSv1\n");
 342         BIO_printf(bio_err," -mtu          - set the link layer MTU\n");
 343         BIO_printf(bio_err," -no_tls1_2/-no_tls1_1/-no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 344         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 345         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
 346         BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
 347         BIO_printf(bio_err,"                 command to see what is available\n");
 348         BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
 349         BIO_printf(bio_err,"                 for those protocols that support it, where\n");
 350         BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
 351         BIO_printf(bio_err,"                 only \"smtp\", \"pop3\", \"imap\", \"ftp\" and \"xmpp\"\n");
 352         BIO_printf(bio_err,"                 are supported.\n");
 353 #ifndef OPENSSL_NO_ENGINE
 354         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 355 #endif
 356         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 357         BIO_printf(bio_err," -sess_out arg - file to write SSL session to\n");
 358         BIO_printf(bio_err," -sess_in arg  - file to read SSL session from\n");
 359 #ifndef OPENSSL_NO_TLSEXT
 360         BIO_printf(bio_err," -servername host  - Set TLS extension servername in ClientHello\n");
 361         BIO_printf(bio_err," -tlsextdebug      - hex dump of all TLS extensions received\n");
 362         BIO_printf(bio_err," -status           - request certificate status from server\n");
 363         BIO_printf(bio_err," -no_ticket        - disable use of RFC4507bis session tickets\n");
 364         BIO_printf(bio_err," -proof_debug      - request an audit proof and print its hex dump\n");
 365 # ifndef OPENSSL_NO_NEXTPROTONEG
 366         BIO_printf(bio_err," -nextprotoneg arg - enable NPN extension, considering named protocols supported (comma-separated list)\n");
 367 # endif
 368 #ifndef OPENSSL_NO_TLSEXT
 369         BIO_printf(bio_err," -serverinfo types - send empty ClientHello extensions (comma-separated numbers)\n");
 370 #endif
 371 #endif
 372         BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
 373         BIO_printf(bio_err," -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
 374         BIO_printf(bio_err," -keymatexport label   - Export keying material using label\n");
 375         BIO_printf(bio_err," -keymatexportlen len  - Export len bytes of keying material (default 20)\n");
 376         }
 377
 378 #ifndef OPENSSL_NO_TLSEXT
 379
 380 /* This is a context that we pass to callbacks */
 381 typedef struct tlsextctx_st {
 382    BIO * biodebug;
 383    int ack;
 384 } tlsextctx;
 385
 386
 387 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 388         {
 389         tlsextctx * p = (tlsextctx *) arg;
 390         const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 391         if (SSL_get_servername_type(s) != -1)
 392                 p->ack = !SSL_session_reused(s) && hn != NULL;
 393         else
 394                 BIO_printf(bio_err,"Can't use SSL_get_servername\n");
 395
 396         return SSL_TLSEXT_ERR_OK;
 397         }
 398
 399 #ifndef OPENSSL_NO_SRP
 400
 401 /* This is a context that we pass to all callbacks */
 402 typedef struct srp_arg_st
 403         {
 404         char *srppassin;
 405         char *srplogin;
 406         int msg;   /* copy from c_msg */
 407         int debug; /* copy from c_debug */
 408         int amp;   /* allow more groups */
 409         int strength /* minimal size for N */ ;
 410         } SRP_ARG;
 411
 412 #define SRP_NUMBER_ITERATIONS_FOR_PRIME 64
 413
 414 static int srp_Verify_N_and_g(const BIGNUM *N, const BIGNUM *g)
 415         {
 416         BN_CTX *bn_ctx = BN_CTX_new();
 417         BIGNUM *p = BN_new();
 418         BIGNUM *r = BN_new();
 419         int ret =
 420                 g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) &&
 421                 BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) &&
 422                 p != NULL && BN_rshift1(p, N) &&
 423
 424                 /* p = (N-1)/2 */
 425                 BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) &&
 426                 r != NULL &&
 427
 428                 /* verify g^((N-1)/2) == -1 (mod N) */
 429                 BN_mod_exp(r, g, p, N, bn_ctx) &&
 430                 BN_add_word(r, 1) &&
 431                 BN_cmp(r, N) == 0;
 432
 433         if(r)
 434                 BN_free(r);
 435         if(p)
 436                 BN_free(p);
 437         if(bn_ctx)
 438                 BN_CTX_free(bn_ctx);
 439         return ret;
 440         }
 441
 442 /* This callback is used here for two purposes:
 443    - extended debugging
 444    - making some primality tests for unknown groups
 445    The callback is only called for a non default group.
 446
 447    An application does not need the call back at all if
 448    only the stanard groups are used.  In real life situations,
 449    client and server already share well known groups,
 450    thus there is no need to verify them.
 451    Furthermore, in case that a server actually proposes a group that
 452    is not one of those defined in RFC 5054, it is more appropriate
 453    to add the group to a static list and then compare since
 454    primality tests are rather cpu consuming.
 455 */
 456
 457 static int MS_CALLBACK ssl_srp_verify_param_cb(SSL *s, void *arg)
 458         {
 459         SRP_ARG *srp_arg = (SRP_ARG *)arg;
 460         BIGNUM *N = NULL, *g = NULL;
 461         if (!(N = SSL_get_srp_N(s)) || !(g = SSL_get_srp_g(s)))
 462                 return 0;
 463         if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1)
 464                 {
 465                 BIO_printf(bio_err, "SRP parameters:\n");
 466                 BIO_printf(bio_err,"\tN="); BN_print(bio_err,N);
 467                 BIO_printf(bio_err,"\n\tg="); BN_print(bio_err,g);
 468                 BIO_printf(bio_err,"\n");
 469                 }
 470
 471         if (SRP_check_known_gN_param(g,N))
 472                 return 1;
 473
 474         if (srp_arg->amp == 1)
 475                 {
 476                 if (srp_arg->debug)
 477                         BIO_printf(bio_err, "SRP param N and g are not known params, going to check deeper.\n");
 478
 479 /* The srp_moregroups is a real debugging feature.
 480    Implementors should rather add the value to the known ones.
 481    The minimal size has already been tested.
 482 */
 483                 if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N,g))
 484                         return 1;
 485                 }
 486         BIO_printf(bio_err, "SRP param N and g rejected.\n");
 487         return 0;
 488         }
 489
 490 #define PWD_STRLEN 1024
 491
 492 static char * MS_CALLBACK ssl_give_srp_client_pwd_cb(SSL *s, void *arg)
 493         {
 494         SRP_ARG *srp_arg = (SRP_ARG *)arg;
 495         char *pass = (char *)OPENSSL_malloc(PWD_STRLEN+1);
 496         PW_CB_DATA cb_tmp;
 497         int l;
 498
 499         cb_tmp.password = (char *)srp_arg->srppassin;
 500         cb_tmp.prompt_info = "SRP user";
 501         if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp))<0)
 502                 {
 503                 BIO_printf (bio_err, "Can't read Password\n");
 504                 OPENSSL_free(pass);
 505                 return NULL;
 506                 }
 507         *(pass+l)= '\0';
 508
 509         return pass;
 510         }
 511
 512 #endif
 513         char *srtp_profiles = NULL;
 514
 515 # ifndef OPENSSL_NO_NEXTPROTONEG
 516 /* This the context that we pass to next_proto_cb */
 517 typedef struct tlsextnextprotoctx_st {
 518         unsigned char *data;
 519         unsigned short len;
 520         int status;
 521 } tlsextnextprotoctx;
 522
 523 static tlsextnextprotoctx next_proto;
 524
 525 static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg)
 526         {
 527         tlsextnextprotoctx *ctx = arg;
 528
 529         if (!c_quiet)
 530                 {
 531                 /* We can assume that |in| is syntactically valid. */
 532                 unsigned i;
 533                 BIO_printf(bio_c_out, "Protocols advertised by server: ");
 534                 for (i = 0; i < inlen; )
 535                         {
 536                         if (i)
 537                                 BIO_write(bio_c_out, ", ", 2);
 538                         BIO_write(bio_c_out, &in[i + 1], in[i]);
 539                         i += in[i] + 1;
 540                         }
 541                 BIO_write(bio_c_out, "\n", 1);
 542                 }
 543
 544         ctx->status = SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
 545         return SSL_TLSEXT_ERR_OK;
 546         }
 547 # endif  /* ndef OPENSSL_NO_NEXTPROTONEG */
 548
 549 static int serverinfo_cli_cb(SSL* s, unsigned short ext_type,
 550                              const unsigned char* in, unsigned short inlen,
 551                              int* al, void* arg)
 552         {
 553         char pem_name[100];
 554         unsigned char ext_buf[4 + 65536];
 555
 556         /* Reconstruct the type/len fields prior to extension data */
 557         ext_buf[0] = ext_type >> 8;
 558         ext_buf[1] = ext_type & 0xFF;
 559         ext_buf[2] = inlen >> 8;
 560         ext_buf[3] = inlen & 0xFF;
 561         memcpy(ext_buf+4, in, inlen);
 562
 563         BIO_snprintf(pem_name, sizeof(pem_name), "SERVER_INFO %d", ext_type);
 564         PEM_write_bio(bio_c_out, pem_name, "", ext_buf, 4 + inlen);
 565         return 1;
 566         }
 567
 568 #endif
 569
 570 enum
 571 {
 572         PROTO_OFF       = 0,
 573         PROTO_SMTP,
 574         PROTO_POP3,
 575         PROTO_IMAP,
 576         PROTO_FTP,
 577         PROTO_XMPP
 578 };
 579
 580 int MAIN(int, char **);
 581
 582 int MAIN(int argc, char **argv)
 583         {
 584         int build_chain = 0;
 585         SSL *con=NULL;
 586 #ifndef OPENSSL_NO_KRB5
 587         KSSL_CTX *kctx;
 588 #endif
 589         int s,k,width,state=0;
 590         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
 591         int cbuf_len,cbuf_off;
 592         int sbuf_len,sbuf_off;
 593         fd_set readfds,writefds;
 594         short port=PORT;
 595         int full_log=1;
 596         char *host=SSL_HOST_NAME;
 597         char *cert_file=NULL,*key_file=NULL,*chain_file=NULL;
 598         int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
 599         char *passarg = NULL, *pass = NULL;
 600         X509 *cert = NULL;
 601         EVP_PKEY *key = NULL;
 602         STACK_OF(X509) *chain = NULL;
 603         char *CApath=NULL,*CAfile=NULL;
 604         char *chCApath=NULL,*chCAfile=NULL;
 605         char *vfyCApath=NULL,*vfyCAfile=NULL;
 606         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE;
 607         int crlf=0;
 608         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 609         SSL_CTX *ctx=NULL;
 610         int ret=1,in_init=1,i,nbio_test=0;
 611         int starttls_proto = PROTO_OFF;
 612         int prexit = 0;
 613         X509_VERIFY_PARAM *vpm = NULL;
 614         int badarg = 0;
 615         const SSL_METHOD *meth=NULL;
 616         int socket_type=SOCK_STREAM;
 617         BIO *sbio;
 618         char *inrand=NULL;
 619         int mbuf_len=0;
 620         struct timeval timeout, *timeoutp;
 621 #ifndef OPENSSL_NO_ENGINE
 622         char *engine_id=NULL;
 623         char *ssl_client_engine_id=NULL;
 624         ENGINE *ssl_client_engine=NULL;
 625 #endif
 626         ENGINE *e=NULL;
 627 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
 628         struct timeval tv;
 629 #if defined(OPENSSL_SYS_BEOS_R5)
 630         int stdin_set = 0;
 631 #endif
 632 #endif
 633 #ifndef OPENSSL_NO_TLSEXT
 634         char *servername = NULL;
 635         tlsextctx tlsextcbp =
 636         {NULL,0};
 637 # ifndef OPENSSL_NO_NEXTPROTONEG
 638         const char *next_proto_neg_in = NULL;
 639 # endif
 640 # define MAX_SI_TYPES 100
 641         unsigned short serverinfo_types[MAX_SI_TYPES];
 642         int serverinfo_types_count = 0;
 643 #endif
 644         char *sess_in = NULL;
 645         char *sess_out = NULL;
 646         struct sockaddr peer;
 647         int peerlen = sizeof(peer);
 648         int enable_timeouts = 0 ;
 649         long socket_mtu = 0;
 650 #ifndef OPENSSL_NO_JPAKE
 651 static char *jpake_secret = NULL;
 652 #define no_jpake !jpake_secret
 653 #else
 654 #define no_jpake 1
 655 #endif
 656 #ifndef OPENSSL_NO_SRP
 657         char * srppass = NULL;
 658         int srp_lateuser = 0;
 659         SRP_ARG srp_arg = {NULL,NULL,0,0,0,1024};
 660 #endif
 661         SSL_EXCERT *exc = NULL;
 662
 663         SSL_CONF_CTX *cctx = NULL;
 664         STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
 665
 666         char *crl_file = NULL;
 667         int crl_format = FORMAT_PEM;
 668         int crl_download = 0;
 669         STACK_OF(X509_CRL) *crls = NULL;
 670
 671         meth=SSLv23_client_method();
 672
 673         apps_startup();
 674         c_Pause=0;
 675         c_quiet=0;
 676         c_ign_eof=0;
 677         c_debug=0;
 678         c_msg=0;
 679         c_showcerts=0;
 680
 681         if (bio_err == NULL)
 682                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 683
 684         if (!load_config(bio_err, NULL))
 685                 goto end;
 686         cctx = SSL_CONF_CTX_new();
 687         if (!cctx)
 688                 goto end;
 689         SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT);
 690         SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CMDLINE);
 691
 692         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 693                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 694                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
 695                 {
 696                 BIO_printf(bio_err,"out of memory\n");
 697                 goto end;
 698                 }
 699
 700         verify_depth=0;
 701         verify_error=X509_V_OK;
 702 #ifdef FIONBIO
 703         c_nbio=0;
 704 #endif
 705
 706         argc--;
 707         argv++;
 708         while (argc >= 1)
 709                 {
 710                 if      (strcmp(*argv,"-host") == 0)
 711                         {
 712                         if (--argc < 1) goto bad;
 713                         host= *(++argv);
 714                         }
 715                 else if (strcmp(*argv,"-port") == 0)
 716                         {
 717                         if (--argc < 1) goto bad;
 718                         port=atoi(*(++argv));
 719                         if (port == 0) goto bad;
 720                         }
 721                 else if (strcmp(*argv,"-connect") == 0)
 722                         {
 723                         if (--argc < 1) goto bad;
 724                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 725                                 goto bad;
 726                         }
 727                 else if (strcmp(*argv,"-verify") == 0)
 728                         {
 729                         verify=SSL_VERIFY_PEER;
 730                         if (--argc < 1) goto bad;
 731                         verify_depth=atoi(*(++argv));
 732                         if (!c_quiet)
 733                                 BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 734                         }
 735                 else if (strcmp(*argv,"-cert") == 0)
 736                         {
 737                         if (--argc < 1) goto bad;
 738                         cert_file= *(++argv);
 739                         }
 740                 else if (strcmp(*argv,"-CRL") == 0)
 741                         {
 742                         if (--argc < 1) goto bad;
 743                         crl_file= *(++argv);
 744                         }
 745                 else if (strcmp(*argv,"-crl_download") == 0)
 746                         crl_download = 1;
 747                 else if (strcmp(*argv,"-sess_out") == 0)
 748                         {
 749                         if (--argc < 1) goto bad;
 750                         sess_out = *(++argv);
 751                         }
 752                 else if (strcmp(*argv,"-sess_in") == 0)
 753                         {
 754                         if (--argc < 1) goto bad;
 755                         sess_in = *(++argv);
 756                         }
 757                 else if (strcmp(*argv,"-certform") == 0)
 758                         {
 759                         if (--argc < 1) goto bad;
 760                         cert_format = str2fmt(*(++argv));
 761                         }
 762                 else if (strcmp(*argv,"-CRLform") == 0)
 763                         {
 764                         if (--argc < 1) goto bad;
 765                         crl_format = str2fmt(*(++argv));
 766                         }
 767                 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm))
 768                         {
 769                         if (badarg)
 770                                 goto bad;
 771                         continue;
 772                         }
 773                 else if (strcmp(*argv,"-verify_return_error") == 0)
 774                         verify_return_error = 1;
 775                 else if (strcmp(*argv,"-verify_quiet") == 0)
 776                         verify_quiet = 1;
 777                 else if (strcmp(*argv,"-brief") == 0)
 778                         {
 779                         c_brief = 1;
 780                         verify_quiet = 1;
 781                         c_quiet = 1;
 782                         }
 783                 else if (args_excert(&argv, &argc, &badarg, bio_err, &exc))
 784                         {
 785                         if (badarg)
 786                                 goto bad;
 787                         continue;
 788                         }
 789                 else if (args_ssl(&argv, &argc, cctx, &badarg, bio_err, &ssl_args))
 790                         {
 791                         if (badarg)
 792                                 goto bad;
 793                         continue;
 794                         }
 795                 else if (strcmp(*argv,"-prexit") == 0)
 796                         prexit=1;
 797                 else if (strcmp(*argv,"-crlf") == 0)
 798                         crlf=1;
 799                 else if (strcmp(*argv,"-quiet") == 0)
 800                         {
 801                         c_quiet=1;
 802                         c_ign_eof=1;
 803                         }
 804                 else if (strcmp(*argv,"-ign_eof") == 0)
 805                         c_ign_eof=1;
 806                 else if (strcmp(*argv,"-no_ign_eof") == 0)
 807                         c_ign_eof=0;
 808                 else if (strcmp(*argv,"-pause") == 0)
 809                         c_Pause=1;
 810                 else if (strcmp(*argv,"-debug") == 0)
 811                         c_debug=1;
 812 #ifndef OPENSSL_NO_TLSEXT
 813                 else if (strcmp(*argv,"-tlsextdebug") == 0)
 814                         c_tlsextdebug=1;
 815                 else if (strcmp(*argv,"-status") == 0)
 816                         c_status_req=1;
 817                 else if (strcmp(*argv,"-proof_debug") == 0)
 818                         c_proof_debug=1;
 819 #endif
 820 #ifdef WATT32
 821                 else if (strcmp(*argv,"-wdebug") == 0)
 822                         dbug_init();
 823 #endif
 824                 else if (strcmp(*argv,"-msg") == 0)
 825                         c_msg=1;
 826                 else if (strcmp(*argv,"-msgfile") == 0)
 827                         {
 828                         if (--argc < 1) goto bad;
 829                         bio_c_msg = BIO_new_file(*(++argv), "w");
 830                         }
 831 #ifndef OPENSSL_NO_SSL_TRACE
 832                 else if (strcmp(*argv,"-trace") == 0)
 833                         c_msg=2;
 834 #endif
 835                 else if (strcmp(*argv,"-showcerts") == 0)
 836                         c_showcerts=1;
 837                 else if (strcmp(*argv,"-nbio_test") == 0)
 838                         nbio_test=1;
 839                 else if (strcmp(*argv,"-state") == 0)
 840                         state=1;
 841 #ifndef OPENSSL_NO_PSK
 842                 else if (strcmp(*argv,"-psk_identity") == 0)
 843                         {
 844                         if (--argc < 1) goto bad;
 845                         psk_identity=*(++argv);
 846                         }
 847                 else if (strcmp(*argv,"-psk") == 0)
 848                         {
 849                         size_t j;
 850
 851                         if (--argc < 1) goto bad;
 852                         psk_key=*(++argv);
 853                         for (j = 0; j < strlen(psk_key); j++)
 854                                 {
 855                                 if (isxdigit((unsigned char)psk_key[j]))
 856                                         continue;
 857                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
 858                                 goto bad;
 859                                 }
 860                         }
 861 #endif
 862 #ifndef OPENSSL_NO_SRP
 863                 else if (strcmp(*argv,"-srpuser") == 0)
 864                         {
 865                         if (--argc < 1) goto bad;
 866                         srp_arg.srplogin= *(++argv);
 867                         meth=TLSv1_client_method();
 868                         }
 869                 else if (strcmp(*argv,"-srppass") == 0)
 870                         {
 871                         if (--argc < 1) goto bad;
 872                         srppass= *(++argv);
 873                         meth=TLSv1_client_method();
 874                         }
 875                 else if (strcmp(*argv,"-srp_strength") == 0)
 876                         {
 877                         if (--argc < 1) goto bad;
 878                         srp_arg.strength=atoi(*(++argv));
 879                         BIO_printf(bio_err,"SRP minimal length for N is %d\n",srp_arg.strength);
 880                         meth=TLSv1_client_method();
 881                         }
 882                 else if (strcmp(*argv,"-srp_lateuser") == 0)
 883                         {
 884                         srp_lateuser= 1;
 885                         meth=TLSv1_client_method();
 886                         }
 887                 else if (strcmp(*argv,"-srp_moregroups") == 0)
 888                         {
 889                         srp_arg.amp=1;
 890                         meth=TLSv1_client_method();
 891                         }
 892 #endif
 893 #ifndef OPENSSL_NO_SSL2
 894                 else if (strcmp(*argv,"-ssl2") == 0)
 895                         meth=SSLv2_client_method();
 896 #endif
 897 #ifndef OPENSSL_NO_SSL3
 898                 else if (strcmp(*argv,"-ssl3") == 0)
 899                         meth=SSLv3_client_method();
 900 #endif
 901 #ifndef OPENSSL_NO_TLS1
 902                 else if (strcmp(*argv,"-tls1_2") == 0)
 903                         meth=TLSv1_2_client_method();
 904                 else if (strcmp(*argv,"-tls1_1") == 0)
 905                         meth=TLSv1_1_client_method();
 906                 else if (strcmp(*argv,"-tls1") == 0)
 907                         meth=TLSv1_client_method();
 908 #endif
 909 #ifndef OPENSSL_NO_DTLS1
 910                 else if (strcmp(*argv,"-dtls") == 0)
 911                         {
 912                         meth=DTLS_client_method();
 913                         socket_type=SOCK_DGRAM;
 914                         }
 915                 else if (strcmp(*argv,"-dtls1") == 0)
 916                         {
 917                         meth=DTLSv1_client_method();
 918                         socket_type=SOCK_DGRAM;
 919                         }
 920                 else if (strcmp(*argv,"-dtls1_2") == 0)
 921                         {
 922                         meth=DTLSv1_2_client_method();
 923                         socket_type=SOCK_DGRAM;
 924                         }
 925                 else if (strcmp(*argv,"-timeout") == 0)
 926                         enable_timeouts=1;
 927                 else if (strcmp(*argv,"-mtu") == 0)
 928                         {
 929                         if (--argc < 1) goto bad;
 930                         socket_mtu = atol(*(++argv));
 931                         }
 932 #endif
 933                 else if (strcmp(*argv,"-keyform") == 0)
 934                         {
 935                         if (--argc < 1) goto bad;
 936                         key_format = str2fmt(*(++argv));
 937                         }
 938                 else if (strcmp(*argv,"-pass") == 0)
 939                         {
 940                         if (--argc < 1) goto bad;
 941                         passarg = *(++argv);
 942                         }
 943                 else if (strcmp(*argv,"-cert_chain") == 0)
 944                         {
 945                         if (--argc < 1) goto bad;
 946                         chain_file= *(++argv);
 947                         }
 948                 else if (strcmp(*argv,"-key") == 0)
 949                         {
 950                         if (--argc < 1) goto bad;
 951                         key_file= *(++argv);
 952                         }
 953                 else if (strcmp(*argv,"-reconnect") == 0)
 954                         {
 955                         reconnect=5;
 956                         }
 957                 else if (strcmp(*argv,"-CApath") == 0)
 958                         {
 959                         if (--argc < 1) goto bad;
 960                         CApath= *(++argv);
 961                         }
 962                 else if (strcmp(*argv,"-chainCApath") == 0)
 963                         {
 964                         if (--argc < 1) goto bad;
 965                         chCApath= *(++argv);
 966                         }
 967                 else if (strcmp(*argv,"-verifyCApath") == 0)
 968                         {
 969                         if (--argc < 1) goto bad;
 970                         vfyCApath= *(++argv);
 971                         }
 972                 else if (strcmp(*argv,"-build_chain") == 0)
 973                         build_chain = 1;
 974                 else if (strcmp(*argv,"-CAfile") == 0)
 975                         {
 976                         if (--argc < 1) goto bad;
 977                         CAfile= *(++argv);
 978                         }
 979                 else if (strcmp(*argv,"-chainCAfile") == 0)
 980                         {
 981                         if (--argc < 1) goto bad;
 982                         chCAfile= *(++argv);
 983                         }
 984                 else if (strcmp(*argv,"-verifyCAfile") == 0)
 985                         {
 986                         if (--argc < 1) goto bad;
 987                         vfyCAfile= *(++argv);
 988                         }
 989 #ifndef OPENSSL_NO_TLSEXT
 990 # ifndef OPENSSL_NO_NEXTPROTONEG
 991                 else if (strcmp(*argv,"-nextprotoneg") == 0)
 992                         {
 993                         if (--argc < 1) goto bad;
 994                         next_proto_neg_in = *(++argv);
 995                         }
 996 # endif
 997                 else if (strcmp(*argv,"-serverinfo") == 0)
 998                         {
 999                         char *c;
1000                         int start = 0;
1001                         int len;
1002
1003                         if (--argc < 1) goto bad;
1004                         c = *(++argv);
1005                         serverinfo_types_count = 0;
1006                         len = strlen(c);
1007                         for (i = 0; i <= len; ++i)
1008                                 {
1009                                 if (i == len || c[i] == ',')
1010                                         {
1011                                         serverinfo_types[serverinfo_types_count]
1012                                             = atoi(c+start);
1013                                         serverinfo_types_count++;
1014                                         start = i+1;
1015                                         }
1016                                 if (serverinfo_types_count == MAX_SI_TYPES)
1017                                         break;
1018                                 }
1019                         }
1020 #endif
1021 #ifdef FIONBIO
1022                 else if (strcmp(*argv,"-nbio") == 0)
1023                         { c_nbio=1; }
1024 #endif
1025                 else if (strcmp(*argv,"-starttls") == 0)
1026                         {
1027                         if (--argc < 1) goto bad;
1028                         ++argv;
1029                         if (strcmp(*argv,"smtp") == 0)
1030                                 starttls_proto = PROTO_SMTP;
1031                         else if (strcmp(*argv,"pop3") == 0)
1032                                 starttls_proto = PROTO_POP3;
1033                         else if (strcmp(*argv,"imap") == 0)
1034                                 starttls_proto = PROTO_IMAP;
1035                         else if (strcmp(*argv,"ftp") == 0)
1036                                 starttls_proto = PROTO_FTP;
1037                         else if (strcmp(*argv, "xmpp") == 0)
1038                                 starttls_proto = PROTO_XMPP;
1039                         else
1040                                 goto bad;
1041                         }
1042 #ifndef OPENSSL_NO_ENGINE
1043                 else if (strcmp(*argv,"-engine") == 0)
1044                         {
1045                         if (--argc < 1) goto bad;
1046                         engine_id = *(++argv);
1047                         }
1048                 else if (strcmp(*argv,"-ssl_client_engine") == 0)
1049                         {
1050                         if (--argc < 1) goto bad;
1051                         ssl_client_engine_id = *(++argv);
1052                         }
1053 #endif
1054                 else if (strcmp(*argv,"-rand") == 0)
1055                         {
1056                         if (--argc < 1) goto bad;
1057                         inrand= *(++argv);
1058                         }
1059 #ifndef OPENSSL_NO_TLSEXT
1060                 else if (strcmp(*argv,"-servername") == 0)
1061                         {
1062                         if (--argc < 1) goto bad;
1063                         servername= *(++argv);
1064                         /* meth=TLSv1_client_method(); */
1065                         }
1066 #endif
1067 #ifndef OPENSSL_NO_JPAKE
1068                 else if (strcmp(*argv,"-jpake") == 0)
1069                         {
1070                         if (--argc < 1) goto bad;
1071                         jpake_secret = *++argv;
1072                         }
1073 #endif
1074                 else if (strcmp(*argv,"-use_srtp") == 0)
1075                         {
1076                         if (--argc < 1) goto bad;
1077                         srtp_profiles = *(++argv);
1078                         }
1079                 else if (strcmp(*argv,"-keymatexport") == 0)
1080                         {
1081                         if (--argc < 1) goto bad;
1082                         keymatexportlabel= *(++argv);
1083                         }
1084                 else if (strcmp(*argv,"-keymatexportlen") == 0)
1085                         {
1086                         if (--argc < 1) goto bad;
1087                         keymatexportlen=atoi(*(++argv));
1088                         if (keymatexportlen == 0) goto bad;
1089                         }
1090                 else
1091                         {
1092                         BIO_printf(bio_err,"unknown option %s\n",*argv);
1093                         badop=1;
1094                         break;
1095                         }
1096                 argc--;
1097                 argv++;
1098                 }
1099         if (badop)
1100                 {
1101 bad:
1102                 sc_usage();
1103                 goto end;
1104                 }
1105
1106 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1107         if (jpake_secret)
1108                 {
1109                 if (psk_key)
1110                         {
1111                         BIO_printf(bio_err,
1112                                    "Can't use JPAKE and PSK together\n");
1113                         goto end;
1114                         }
1115                 psk_identity = "JPAKE";
1116                 }
1117 #endif
1118
1119         OpenSSL_add_ssl_algorithms();
1120         SSL_load_error_strings();
1121
1122 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
1123         next_proto.status = -1;
1124         if (next_proto_neg_in)
1125                 {
1126                 next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in);
1127                 if (next_proto.data == NULL)
1128                         {
1129                         BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
1130                         goto end;
1131                         }
1132                 }
1133         else
1134                 next_proto.data = NULL;
1135 #endif
1136
1137 #ifndef OPENSSL_NO_ENGINE
1138         e = setup_engine(bio_err, engine_id, 1);
1139         if (ssl_client_engine_id)
1140                 {
1141                 ssl_client_engine = ENGINE_by_id(ssl_client_engine_id);
1142                 if (!ssl_client_engine)
1143                         {
1144                         BIO_printf(bio_err,
1145                                         "Error getting client auth engine\n");
1146                         goto end;
1147                         }
1148                 }
1149
1150 #endif
1151         if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
1152                 {
1153                 BIO_printf(bio_err, "Error getting password\n");
1154                 goto end;
1155                 }
1156
1157         if (key_file == NULL)
1158                 key_file = cert_file;
1159
1160
1161         if (key_file)
1162
1163                 {
1164
1165                 key = load_key(bio_err, key_file, key_format, 0, pass, e,
1166                                "client certificate private key file");
1167                 if (!key)
1168                         {
1169                         ERR_print_errors(bio_err);
1170                         goto end;
1171                         }
1172
1173                 }
1174
1175         if (cert_file)
1176
1177                 {
1178                 cert = load_cert(bio_err,cert_file,cert_format,
1179                                 NULL, e, "client certificate file");
1180
1181                 if (!cert)
1182                         {
1183                         ERR_print_errors(bio_err);
1184                         goto end;
1185                         }
1186                 }
1187
1188         if (chain_file)
1189                 {
1190                 chain = load_certs(bio_err, chain_file,FORMAT_PEM,
1191                                         NULL, e, "client certificate chain");
1192                 if (!chain)
1193                         goto end;
1194                 }
1195
1196         if (crl_file)
1197                 {
1198                 X509_CRL *crl;
1199                 crl = load_crl(crl_file, crl_format);
1200                 if (!crl)
1201                         {
1202                         BIO_puts(bio_err, "Error loading CRL\n");
1203                         ERR_print_errors(bio_err);
1204                         goto end;
1205                         }
1206                 crls = sk_X509_CRL_new_null();
1207                 if (!crls || !sk_X509_CRL_push(crls, crl))
1208                         {
1209                         BIO_puts(bio_err, "Error adding CRL\n");
1210                         ERR_print_errors(bio_err);
1211                         X509_CRL_free(crl);
1212                         goto end;
1213                         }
1214                 }
1215
1216         if (!load_excert(&exc, bio_err))
1217                 goto end;
1218
1219         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1220                 && !RAND_status())
1221                 {
1222                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
1223                 }
1224         if (inrand != NULL)
1225                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
1226                         app_RAND_load_files(inrand));
1227
1228         if (bio_c_out == NULL)
1229                 {
1230                 if (c_quiet && !c_debug)
1231                         {
1232                         bio_c_out=BIO_new(BIO_s_null());
1233                         if (c_msg && !bio_c_msg)
1234                                 bio_c_msg=BIO_new_fp(stdout,BIO_NOCLOSE);
1235                         }
1236                 else
1237                         {
1238                         if (bio_c_out == NULL)
1239                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
1240                         }
1241                 }
1242
1243 #ifndef OPENSSL_NO_SRP
1244         if(!app_passwd(bio_err, srppass, NULL, &srp_arg.srppassin, NULL))
1245                 {
1246                 BIO_printf(bio_err, "Error getting password\n");
1247                 goto end;
1248                 }
1249 #endif
1250
1251         ctx=SSL_CTX_new(meth);
1252         if (ctx == NULL)
1253                 {
1254                 ERR_print_errors(bio_err);
1255                 goto end;
1256                 }
1257
1258         if (vpm)
1259                 SSL_CTX_set1_param(ctx, vpm);
1260
1261         if (!args_ssl_call(ctx, bio_err, cctx, ssl_args, 1, no_jpake))
1262                 {
1263                 ERR_print_errors(bio_err);
1264                 goto end;
1265                 }
1266
1267         if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile,
1268                                                 crls, crl_download))
1269                 {
1270                 BIO_printf(bio_err, "Error loading store locations\n");
1271                 ERR_print_errors(bio_err);
1272                 goto end;
1273                 }
1274
1275 #ifndef OPENSSL_NO_ENGINE
1276         if (ssl_client_engine)
1277                 {
1278                 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine))
1279                         {
1280                         BIO_puts(bio_err, "Error setting client auth engine\n");
1281                         ERR_print_errors(bio_err);
1282                         ENGINE_free(ssl_client_engine);
1283                         goto end;
1284                         }
1285                 ENGINE_free(ssl_client_engine);
1286                 }
1287 #endif
1288
1289 #ifndef OPENSSL_NO_PSK
1290 #ifdef OPENSSL_NO_JPAKE
1291         if (psk_key != NULL)
1292 #else
1293         if (psk_key != NULL || jpake_secret)
1294 #endif
1295                 {
1296                 if (c_debug)
1297                         BIO_printf(bio_c_out, "PSK key given or JPAKE in use, setting client callback\n");
1298                 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1299                 }
1300         if (srtp_profiles != NULL)
1301                 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
1302 #endif
1303         if (exc) ssl_ctx_set_excert(ctx, exc);
1304         /* DTLS: partial reads end up discarding unread UDP bytes :-(
1305          * Setting read ahead solves this problem.
1306          */
1307         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1308
1309 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
1310         if (next_proto.data)
1311                 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
1312 #endif
1313 #ifndef OPENSSL_NO_TLSEXT
1314                 if (serverinfo_types_count)
1315                         {
1316                         for (i = 0; i < serverinfo_types_count; i++)
1317                                 {
1318                                 SSL_CTX_set_custom_cli_ext(ctx,
1319                                                            serverinfo_types[i],
1320                                                            NULL,
1321                                                            serverinfo_cli_cb,
1322                                                            NULL);
1323                                 }
1324                         }
1325 #endif
1326
1327         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1328 #if 0
1329         else
1330                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
1331 #endif
1332
1333         SSL_CTX_set_verify(ctx,verify,verify_callback);
1334
1335         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1336                 (!SSL_CTX_set_default_verify_paths(ctx)))
1337                 {
1338                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
1339                 ERR_print_errors(bio_err);
1340                 /* goto end; */
1341                 }
1342
1343         ssl_ctx_add_crls(ctx, crls, crl_download);
1344
1345         if (!set_cert_key_stuff(ctx,cert,key,chain,build_chain))
1346                 goto end;
1347
1348 #ifndef OPENSSL_NO_TLSEXT
1349         if (servername != NULL)
1350                 {
1351                 tlsextcbp.biodebug = bio_err;
1352                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1353                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1354                 }
1355 #ifndef OPENSSL_NO_SRP
1356         if (srp_arg.srplogin)
1357                 {
1358                 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin))
1359                         {
1360                         BIO_printf(bio_err,"Unable to set SRP username\n");
1361                         goto end;
1362                         }
1363                 srp_arg.msg = c_msg;
1364                 srp_arg.debug = c_debug ;
1365                 SSL_CTX_set_srp_cb_arg(ctx,&srp_arg);
1366                 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb);
1367                 SSL_CTX_set_srp_strength(ctx, srp_arg.strength);
1368                 if (c_msg || c_debug || srp_arg.amp == 0)
1369                         SSL_CTX_set_srp_verify_param_callback(ctx, ssl_srp_verify_param_cb);
1370                 }
1371
1372 #endif
1373         if (c_proof_debug)
1374                 SSL_CTX_set_tlsext_authz_server_audit_proof_cb(ctx,
1375                                                                audit_proof_cb);
1376 #endif
1377
1378         con=SSL_new(ctx);
1379         if (sess_in)
1380                 {
1381                 SSL_SESSION *sess;
1382                 BIO *stmp = BIO_new_file(sess_in, "r");
1383                 if (!stmp)
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                 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1391                 BIO_free(stmp);
1392                 if (!sess)
1393                         {
1394                         BIO_printf(bio_err, "Can't open session file %s\n",
1395                                                 sess_in);
1396                         ERR_print_errors(bio_err);
1397                         goto end;
1398                         }
1399                 SSL_set_session(con, sess);
1400                 SSL_SESSION_free(sess);
1401                 }
1402 #ifndef OPENSSL_NO_TLSEXT
1403         if (servername != NULL)
1404                 {
1405                 if (!SSL_set_tlsext_host_name(con,servername))
1406                         {
1407                         BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
1408                         ERR_print_errors(bio_err);
1409                         goto end;
1410                         }
1411                 }
1412 #endif
1413 #ifndef OPENSSL_NO_KRB5
1414         if (con  &&  (kctx = kssl_ctx_new()) != NULL)
1415                 {
1416                 SSL_set0_kssl_ctx(con, kctx);
1417                 kssl_ctx_setstring(kctx, KSSL_SERVER, host);
1418                 }
1419 #endif  /* OPENSSL_NO_KRB5  */
1420 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
1421 #if 0
1422 #ifdef TLSEXT_TYPE_opaque_prf_input
1423         SSL_set_tlsext_opaque_prf_input(con, "Test client", 11);
1424 #endif
1425 #endif
1426
1427 re_start:
1428
1429         if (init_client(&s,host,port,socket_type) == 0)
1430                 {
1431                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
1432                 SHUTDOWN(s);
1433                 goto end;
1434                 }
1435         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
1436
1437 #ifdef FIONBIO
1438         if (c_nbio)
1439                 {
1440                 unsigned long l=1;
1441                 BIO_printf(bio_c_out,"turning on non blocking io\n");
1442                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
1443                         {
1444                         ERR_print_errors(bio_err);
1445                         goto end;
1446                         }
1447                 }
1448 #endif
1449         if (c_Pause & 0x01) SSL_set_debug(con, 1);
1450
1451         if (socket_type == SOCK_DGRAM)
1452                 {
1453
1454                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
1455                 if (getsockname(s, &peer, (void *)&peerlen) < 0)
1456                         {
1457                         BIO_printf(bio_err, "getsockname:errno=%d\n",
1458                                 get_last_socket_error());
1459                         SHUTDOWN(s);
1460                         goto end;
1461                         }
1462
1463                 (void)BIO_ctrl_set_connected(sbio, 1, &peer);
1464
1465                 if (enable_timeouts)
1466                         {
1467                         timeout.tv_sec = 0;
1468                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
1469                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
1470
1471                         timeout.tv_sec = 0;
1472                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
1473                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
1474                         }
1475
1476                 if (socket_mtu > 28)
1477                         {
1478                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
1479                         SSL_set_mtu(con, socket_mtu - 28);
1480                         }
1481                 else
1482                         /* want to do MTU discovery */
1483                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
1484                 }
1485         else
1486                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
1487
1488         if (nbio_test)
1489                 {
1490                 BIO *test;
1491
1492                 test=BIO_new(BIO_f_nbio_test());
1493                 sbio=BIO_push(test,sbio);
1494                 }
1495
1496         if (c_debug)
1497                 {
1498                 SSL_set_debug(con, 1);
1499                 BIO_set_callback(sbio,bio_dump_callback);
1500                 BIO_set_callback_arg(sbio,(char *)bio_c_out);
1501                 }
1502         if (c_msg)
1503                 {
1504 #ifndef OPENSSL_NO_SSL_TRACE
1505                 if (c_msg == 2)
1506                         SSL_set_msg_callback(con, SSL_trace);
1507                 else
1508 #endif
1509                         SSL_set_msg_callback(con, msg_cb);
1510                 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out);
1511                 }
1512 #ifndef OPENSSL_NO_TLSEXT
1513         if (c_tlsextdebug)
1514                 {
1515                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1516                 SSL_set_tlsext_debug_arg(con, bio_c_out);
1517                 }
1518         if (c_status_req)
1519                 {
1520                 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
1521                 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
1522                 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
1523 #if 0
1524 {
1525 STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null();
1526 OCSP_RESPID *id = OCSP_RESPID_new();
1527 id->value.byKey = ASN1_OCTET_STRING_new();
1528 id->type = V_OCSP_RESPID_KEY;
1529 ASN1_STRING_set(id->value.byKey, "Hello World", -1);
1530 sk_OCSP_RESPID_push(ids, id);
1531 SSL_set_tlsext_status_ids(con, ids);
1532 }
1533 #endif
1534                 }
1535 #endif
1536 #ifndef OPENSSL_NO_JPAKE
1537         if (jpake_secret)
1538                 jpake_client_auth(bio_c_out, sbio, jpake_secret);
1539 #endif
1540
1541         SSL_set_bio(con,sbio,sbio);
1542         SSL_set_connect_state(con);
1543
1544         /* ok, lets connect */
1545         width=SSL_get_fd(con)+1;
1546
1547         read_tty=1;
1548         write_tty=0;
1549         tty_on=0;
1550         read_ssl=1;
1551         write_ssl=1;
1552
1553         cbuf_len=0;
1554         cbuf_off=0;
1555         sbuf_len=0;
1556         sbuf_off=0;
1557
1558         /* This is an ugly hack that does a lot of assumptions */
1559         /* We do have to handle multi-line responses which may come
1560            in a single packet or not. We therefore have to use
1561            BIO_gets() which does need a buffering BIO. So during
1562            the initial chitchat we do push a buffering BIO into the
1563            chain that is removed again later on to not disturb the
1564            rest of the s_client operation. */
1565         if (starttls_proto == PROTO_SMTP)
1566                 {
1567                 int foundit=0;
1568                 BIO *fbio = BIO_new(BIO_f_buffer());
1569                 BIO_push(fbio, sbio);
1570                 /* wait for multi-line response to end from SMTP */
1571                 do
1572                         {
1573                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1574                         }
1575                 while (mbuf_len>3 && mbuf[3]=='-');
1576                 /* STARTTLS command requires EHLO... */
1577                 BIO_printf(fbio,"EHLO openssl.client.net\r\n");
1578                 (void)BIO_flush(fbio);
1579                 /* wait for multi-line response to end EHLO SMTP response */
1580                 do
1581                         {
1582                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1583                         if (strstr(mbuf,"STARTTLS"))
1584                                 foundit=1;
1585                         }
1586                 while (mbuf_len>3 && mbuf[3]=='-');
1587                 (void)BIO_flush(fbio);
1588                 BIO_pop(fbio);
1589                 BIO_free(fbio);
1590                 if (!foundit)
1591                         BIO_printf(bio_err,
1592                                    "didn't found starttls in server response,"
1593                                    " try anyway...\n");
1594                 BIO_printf(sbio,"STARTTLS\r\n");
1595                 BIO_read(sbio,sbuf,BUFSIZZ);
1596                 }
1597         else if (starttls_proto == PROTO_POP3)
1598                 {
1599                 BIO_read(sbio,mbuf,BUFSIZZ);
1600                 BIO_printf(sbio,"STLS\r\n");
1601                 BIO_read(sbio,sbuf,BUFSIZZ);
1602                 }
1603         else if (starttls_proto == PROTO_IMAP)
1604                 {
1605                 int foundit=0;
1606                 BIO *fbio = BIO_new(BIO_f_buffer());
1607                 BIO_push(fbio, sbio);
1608                 BIO_gets(fbio,mbuf,BUFSIZZ);
1609                 /* STARTTLS command requires CAPABILITY... */
1610                 BIO_printf(fbio,". CAPABILITY\r\n");
1611                 (void)BIO_flush(fbio);
1612                 /* wait for multi-line CAPABILITY response */
1613                 do
1614                         {
1615                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1616                         if (strstr(mbuf,"STARTTLS"))
1617                                 foundit=1;
1618                         }
1619                 while (mbuf_len>3 && mbuf[0]!='.');
1620                 (void)BIO_flush(fbio);
1621                 BIO_pop(fbio);
1622                 BIO_free(fbio);
1623                 if (!foundit)
1624                         BIO_printf(bio_err,
1625                                    "didn't found STARTTLS in server response,"
1626                                    " try anyway...\n");
1627                 BIO_printf(sbio,". STARTTLS\r\n");
1628                 BIO_read(sbio,sbuf,BUFSIZZ);
1629                 }
1630         else if (starttls_proto == PROTO_FTP)
1631                 {
1632                 BIO *fbio = BIO_new(BIO_f_buffer());
1633                 BIO_push(fbio, sbio);
1634                 /* wait for multi-line response to end from FTP */
1635                 do
1636                         {
1637                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1638                         }
1639                 while (mbuf_len>3 && mbuf[3]=='-');
1640                 (void)BIO_flush(fbio);
1641                 BIO_pop(fbio);
1642                 BIO_free(fbio);
1643                 BIO_printf(sbio,"AUTH TLS\r\n");
1644                 BIO_read(sbio,sbuf,BUFSIZZ);
1645                 }
1646         if (starttls_proto == PROTO_XMPP)
1647                 {
1648                 int seen = 0;
1649                 BIO_printf(sbio,"<stream:stream "
1650                     "xmlns:stream='http://etherx.jabber.org/streams' "
1651                     "xmlns='jabber:client' to='%s' version='1.0'>", host);
1652                 seen = BIO_read(sbio,mbuf,BUFSIZZ);
1653                 mbuf[seen] = 0;
1654                 while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'"))
1655                         {
1656                         if (strstr(mbuf, "/stream:features>"))
1657                                 goto shut;
1658                         seen = BIO_read(sbio,mbuf,BUFSIZZ);
1659                         mbuf[seen] = 0;
1660                         }
1661                 BIO_printf(sbio, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
1662                 seen = BIO_read(sbio,sbuf,BUFSIZZ);
1663                 sbuf[seen] = 0;
1664                 if (!strstr(sbuf, "<proceed"))
1665                         goto shut;
1666                 mbuf[0] = 0;
1667                 }
1668
1669         for (;;)
1670                 {
1671                 FD_ZERO(&readfds);
1672                 FD_ZERO(&writefds);
1673
1674                 if ((SSL_version(con) == DTLS1_VERSION) &&
1675                         DTLSv1_get_timeout(con, &timeout))
1676                         timeoutp = &timeout;
1677                 else
1678                         timeoutp = NULL;
1679
1680                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
1681                         {
1682                         in_init=1;
1683                         tty_on=0;
1684                         }
1685                 else
1686                         {
1687                         tty_on=1;
1688                         if (in_init)
1689                                 {
1690                                 in_init=0;
1691 #if 0 /* This test doesn't really work as intended (needs to be fixed) */
1692 #ifndef OPENSSL_NO_TLSEXT
1693                                 if (servername != NULL && !SSL_session_reused(con))
1694                                         {
1695                                         BIO_printf(bio_c_out,"Server did %sacknowledge servername extension.\n",tlsextcbp.ack?"":"not ");
1696                                         }
1697 #endif
1698 #endif
1699                                 if (sess_out)
1700                                         {
1701                                         BIO *stmp = BIO_new_file(sess_out, "w");
1702                                         if (stmp)
1703                                                 {
1704                                                 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
1705                                                 BIO_free(stmp);
1706                                                 }
1707                                         else
1708                                                 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
1709                                         }
1710                                 if (c_brief)
1711                                         {
1712                                         BIO_puts(bio_err,
1713                                                 "CONNECTION ESTABLISHED\n");
1714                                         print_ssl_summary(bio_err, con);
1715                                         }
1716                                 print_stuff(bio_c_out,con,full_log);
1717                                 if (full_log > 0) full_log--;
1718
1719                                 if (starttls_proto)
1720                                         {
1721                                         BIO_printf(bio_err,"%s",mbuf);
1722                                         /* We don't need to know any more */
1723                                         starttls_proto = PROTO_OFF;
1724                                         }
1725
1726                                 if (reconnect)
1727                                         {
1728                                         reconnect--;
1729                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
1730                                         SSL_shutdown(con);
1731                                         SSL_set_connect_state(con);
1732                                         SHUTDOWN(SSL_get_fd(con));
1733                                         goto re_start;
1734                                         }
1735                                 }
1736                         }
1737
1738                 ssl_pending = read_ssl && SSL_pending(con);
1739
1740                 if (!ssl_pending)
1741                         {
1742 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined (OPENSSL_SYS_BEOS_R5)
1743                         if (tty_on)
1744                                 {
1745                                 if (read_tty)  openssl_fdset(fileno(stdin),&readfds);
1746                                 if (write_tty) openssl_fdset(fileno(stdout),&writefds);
1747                                 }
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 #else
1753                         if(!tty_on || !write_tty) {
1754                                 if (read_ssl)
1755                                         openssl_fdset(SSL_get_fd(con),&readfds);
1756                                 if (write_ssl)
1757                                         openssl_fdset(SSL_get_fd(con),&writefds);
1758                         }
1759 #endif
1760 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
1761                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1762
1763                         /* Note: under VMS with SOCKETSHR the second parameter
1764                          * is currently of type (int *) whereas under other
1765                          * systems it is (void *) if you don't have a cast it
1766                          * will choke the compiler: if you do have a cast then
1767                          * you can either go for (int *) or (void *).
1768                          */
1769 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1770                         /* Under Windows/DOS we make the assumption that we can
1771                          * always write to the tty: therefore if we need to
1772                          * write to the tty we just fall through. Otherwise
1773                          * we timeout the select every second and see if there
1774                          * are any keypresses. Note: this is a hack, in a proper
1775                          * Windows application we wouldn't do this.
1776                          */
1777                         i=0;
1778                         if(!write_tty) {
1779                                 if(read_tty) {
1780                                         tv.tv_sec = 1;
1781                                         tv.tv_usec = 0;
1782                                         i=select(width,(void *)&readfds,(void *)&writefds,
1783                                                  NULL,&tv);
1784 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1785                                         if(!i && (!_kbhit() || !read_tty) ) continue;
1786 #else
1787                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
1788 #endif
1789                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1790                                          NULL,timeoutp);
1791                         }
1792 #elif defined(OPENSSL_SYS_NETWARE)
1793                         if(!write_tty) {
1794                                 if(read_tty) {
1795                                         tv.tv_sec = 1;
1796                                         tv.tv_usec = 0;
1797                                         i=select(width,(void *)&readfds,(void *)&writefds,
1798                                                 NULL,&tv);
1799                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1800                                         NULL,timeoutp);
1801                         }
1802 #elif defined(OPENSSL_SYS_BEOS_R5)
1803                         /* Under BeOS-R5 the situation is similar to DOS */
1804                         i=0;
1805                         stdin_set = 0;
1806                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
1807                         if(!write_tty) {
1808                                 if(read_tty) {
1809                                         tv.tv_sec = 1;
1810                                         tv.tv_usec = 0;
1811                                         i=select(width,(void *)&readfds,(void *)&writefds,
1812                                                  NULL,&tv);
1813                                         if (read(fileno(stdin), sbuf, 0) >= 0)
1814                                                 stdin_set = 1;
1815                                         if (!i && (stdin_set != 1 || !read_tty))
1816                                                 continue;
1817                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1818                                          NULL,timeoutp);
1819                         }
1820                         (void)fcntl(fileno(stdin), F_SETFL, 0);
1821 #else
1822                         i=select(width,(void *)&readfds,(void *)&writefds,
1823                                  NULL,timeoutp);
1824 #endif
1825                         if ( i < 0)
1826                                 {
1827                                 BIO_printf(bio_err,"bad select %d\n",
1828                                 get_last_socket_error());
1829                                 goto shut;
1830                                 /* goto end; */
1831                                 }
1832                         }
1833
1834                 if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
1835                         {
1836                         BIO_printf(bio_err,"TIMEOUT occured\n");
1837                         }
1838
1839                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
1840                         {
1841                         k=SSL_write(con,&(cbuf[cbuf_off]),
1842                                 (unsigned int)cbuf_len);
1843                         switch (SSL_get_error(con,k))
1844                                 {
1845                         case SSL_ERROR_NONE:
1846                                 cbuf_off+=k;
1847                                 cbuf_len-=k;
1848                                 if (k <= 0) goto end;
1849                                 /* we have done a  write(con,NULL,0); */
1850                                 if (cbuf_len <= 0)
1851                                         {
1852                                         read_tty=1;
1853                                         write_ssl=0;
1854                                         }
1855                                 else /* if (cbuf_len > 0) */
1856                                         {
1857                                         read_tty=0;
1858                                         write_ssl=1;
1859                                         }
1860                                 break;
1861                         case SSL_ERROR_WANT_WRITE:
1862                                 BIO_printf(bio_c_out,"write W BLOCK\n");
1863                                 write_ssl=1;
1864                                 read_tty=0;
1865                                 break;
1866                         case SSL_ERROR_WANT_READ:
1867                                 BIO_printf(bio_c_out,"write R BLOCK\n");
1868                                 write_tty=0;
1869                                 read_ssl=1;
1870                                 write_ssl=0;
1871                                 break;
1872                         case SSL_ERROR_WANT_X509_LOOKUP:
1873                                 BIO_printf(bio_c_out,"write X BLOCK\n");
1874                                 break;
1875                         case SSL_ERROR_ZERO_RETURN:
1876                                 if (cbuf_len != 0)
1877                                         {
1878                                         BIO_printf(bio_c_out,"shutdown\n");
1879                                         ret = 0;
1880                                         goto shut;
1881                                         }
1882                                 else
1883                                         {
1884                                         read_tty=1;
1885                                         write_ssl=0;
1886                                         break;
1887                                         }
1888
1889                         case SSL_ERROR_SYSCALL:
1890                                 if ((k != 0) || (cbuf_len != 0))
1891                                         {
1892                                         BIO_printf(bio_err,"write:errno=%d\n",
1893                                                 get_last_socket_error());
1894                                         goto shut;
1895                                         }
1896                                 else
1897                                         {
1898                                         read_tty=1;
1899                                         write_ssl=0;
1900                                         }
1901                                 break;
1902                         case SSL_ERROR_SSL:
1903                                 ERR_print_errors(bio_err);
1904                                 goto shut;
1905                                 }
1906                         }
1907 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
1908                 /* Assume Windows/DOS/BeOS can always write */
1909                 else if (!ssl_pending && write_tty)
1910 #else
1911                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
1912 #endif
1913                         {
1914 #ifdef CHARSET_EBCDIC
1915                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
1916 #endif
1917                         i=raw_write_stdout(&(sbuf[sbuf_off]),sbuf_len);
1918
1919                         if (i <= 0)
1920                                 {
1921                                 BIO_printf(bio_c_out,"DONE\n");
1922                                 ret = 0;
1923                                 goto shut;
1924                                 /* goto end; */
1925                                 }
1926
1927                         sbuf_len-=i;;
1928                         sbuf_off+=i;
1929                         if (sbuf_len <= 0)
1930                                 {
1931                                 read_ssl=1;
1932                                 write_tty=0;
1933                                 }
1934                         }
1935                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
1936                         {
1937 #ifdef RENEG
1938 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
1939 #endif
1940 #if 1
1941                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
1942 #else
1943 /* Demo for pending and peek :-) */
1944                         k=SSL_read(con,sbuf,16);
1945 { char zbuf[10240];
1946 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
1947 }
1948 #endif
1949
1950                         switch (SSL_get_error(con,k))
1951                                 {
1952                         case SSL_ERROR_NONE:
1953                                 if (k <= 0)
1954                                         goto end;
1955                                 sbuf_off=0;
1956                                 sbuf_len=k;
1957
1958                                 read_ssl=0;
1959                                 write_tty=1;
1960                                 break;
1961                         case SSL_ERROR_WANT_WRITE:
1962                                 BIO_printf(bio_c_out,"read W BLOCK\n");
1963                                 write_ssl=1;
1964                                 read_tty=0;
1965                                 break;
1966                         case SSL_ERROR_WANT_READ:
1967                                 BIO_printf(bio_c_out,"read R BLOCK\n");
1968                                 write_tty=0;
1969                                 read_ssl=1;
1970                                 if ((read_tty == 0) && (write_ssl == 0))
1971                                         write_ssl=1;
1972                                 break;
1973                         case SSL_ERROR_WANT_X509_LOOKUP:
1974                                 BIO_printf(bio_c_out,"read X BLOCK\n");
1975                                 break;
1976                         case SSL_ERROR_SYSCALL:
1977                                 ret=get_last_socket_error();
1978                                 if (c_brief)
1979                                         BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n");
1980                                 else
1981                                         BIO_printf(bio_err,"read:errno=%d\n",ret);
1982                                 goto shut;
1983                         case SSL_ERROR_ZERO_RETURN:
1984                                 BIO_printf(bio_c_out,"closed\n");
1985                                 ret=0;
1986                                 goto shut;
1987                         case SSL_ERROR_SSL:
1988                                 ERR_print_errors(bio_err);
1989                                 goto shut;
1990                                 /* break; */
1991                                 }
1992                         }
1993
1994 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1995 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1996                 else if (_kbhit())
1997 #else
1998                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
1999 #endif
2000 #elif defined (OPENSSL_SYS_NETWARE)
2001                 else if (_kbhit())
2002 #elif defined(OPENSSL_SYS_BEOS_R5)
2003                 else if (stdin_set)
2004 #else
2005                 else if (FD_ISSET(fileno(stdin),&readfds))
2006 #endif
2007                         {
2008                         if (crlf)
2009                                 {
2010                                 int j, lf_num;
2011
2012                                 i=raw_read_stdin(cbuf,BUFSIZZ/2);
2013                                 lf_num = 0;
2014                                 /* both loops are skipped when i <= 0 */
2015                                 for (j = 0; j < i; j++)
2016                                         if (cbuf[j] == '\n')
2017                                                 lf_num++;
2018                                 for (j = i-1; j >= 0; j--)
2019                                         {
2020                                         cbuf[j+lf_num] = cbuf[j];
2021                                         if (cbuf[j] == '\n')
2022                                                 {
2023                                                 lf_num--;
2024                                                 i++;
2025                                                 cbuf[j+lf_num] = '\r';
2026                                                 }
2027                                         }
2028                                 assert(lf_num == 0);
2029                                 }
2030                         else
2031                                 i=raw_read_stdin(cbuf,BUFSIZZ);
2032
2033                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
2034                                 {
2035                                 BIO_printf(bio_err,"DONE\n");
2036                                 ret=0;
2037                                 goto shut;
2038                                 }
2039
2040                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
2041                                 {
2042                                 BIO_printf(bio_err,"RENEGOTIATING\n");
2043                                 SSL_renegotiate(con);
2044                                 cbuf_len=0;
2045                                 }
2046 #ifndef OPENSSL_NO_HEARTBEATS
2047                         else if ((!c_ign_eof) && (cbuf[0] == 'B'))
2048                                 {
2049                                 BIO_printf(bio_err,"HEARTBEATING\n");
2050                                 SSL_heartbeat(con);
2051                                 cbuf_len=0;
2052                                 }
2053 #endif
2054                         else
2055                                 {
2056                                 cbuf_len=i;
2057                                 cbuf_off=0;
2058 #ifdef CHARSET_EBCDIC
2059                                 ebcdic2ascii(cbuf, cbuf, i);
2060 #endif
2061                                 }
2062
2063                         write_ssl=1;
2064                         read_tty=0;
2065                         }
2066                 }
2067
2068         ret=0;
2069 shut:
2070         if (in_init)
2071                 print_stuff(bio_c_out,con,full_log);
2072         SSL_shutdown(con);
2073         SHUTDOWN(SSL_get_fd(con));
2074 end:
2075         if (con != NULL)
2076                 {
2077                 if (prexit != 0)
2078                         print_stuff(bio_c_out,con,1);
2079                 SSL_free(con);
2080                 }
2081 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2082         if (next_proto.data)
2083                 OPENSSL_free(next_proto.data);
2084 #endif
2085         if (ctx != NULL) SSL_CTX_free(ctx);
2086         if (cert)
2087                 X509_free(cert);
2088         if (crls)
2089                 sk_X509_CRL_pop_free(crls, X509_CRL_free);
2090         if (key)
2091                 EVP_PKEY_free(key);
2092         if (chain)
2093                 sk_X509_pop_free(chain, X509_free);
2094         if (pass)
2095                 OPENSSL_free(pass);
2096         if (vpm)
2097                 X509_VERIFY_PARAM_free(vpm);
2098         ssl_excert_free(exc);
2099         if (ssl_args)
2100                 sk_OPENSSL_STRING_free(ssl_args);
2101         if (cctx)
2102                 SSL_CONF_CTX_free(cctx);
2103 #ifndef OPENSSL_NO_JPAKE
2104         if (jpake_secret && psk_key)
2105                 OPENSSL_free(psk_key);
2106 #endif
2107         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
2108         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
2109         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
2110         if (bio_c_out != NULL)
2111                 {
2112                 BIO_free(bio_c_out);
2113                 bio_c_out=NULL;
2114                 }
2115         if (bio_c_msg != NULL)
2116                 {
2117                 BIO_free(bio_c_msg);
2118                 bio_c_msg=NULL;
2119                 }
2120         apps_shutdown();
2121         OPENSSL_EXIT(ret);
2122         }
2123
2124
2125 static void print_stuff(BIO *bio, SSL *s, int full)
2126         {
2127         X509 *peer=NULL;
2128         char *p;
2129         static const char *space="                ";
2130         char buf[BUFSIZ];
2131         STACK_OF(X509) *sk;
2132         STACK_OF(X509_NAME) *sk2;
2133         const SSL_CIPHER *c;
2134         X509_NAME *xn;
2135         int j,i;
2136 #ifndef OPENSSL_NO_COMP
2137         const COMP_METHOD *comp, *expansion;
2138 #endif
2139         unsigned char *exportedkeymat;
2140
2141         if (full)
2142                 {
2143                 int got_a_chain = 0;
2144
2145                 sk=SSL_get_peer_cert_chain(s);
2146                 if (sk != NULL)
2147                         {
2148                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
2149
2150                         BIO_printf(bio,"---\nCertificate chain\n");
2151                         for (i=0; i<sk_X509_num(sk); i++)
2152                                 {
2153                                 X509_NAME_oneline(X509_get_subject_name(
2154                                         sk_X509_value(sk,i)),buf,sizeof buf);
2155                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
2156                                 X509_NAME_oneline(X509_get_issuer_name(
2157                                         sk_X509_value(sk,i)),buf,sizeof buf);
2158                                 BIO_printf(bio,"   i:%s\n",buf);
2159                                 if (c_showcerts)
2160                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
2161                                 }
2162                         }
2163
2164                 BIO_printf(bio,"---\n");
2165                 peer=SSL_get_peer_certificate(s);
2166                 if (peer != NULL)
2167                         {
2168                         BIO_printf(bio,"Server certificate\n");
2169                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
2170                                 PEM_write_bio_X509(bio,peer);
2171                         X509_NAME_oneline(X509_get_subject_name(peer),
2172                                 buf,sizeof buf);
2173                         BIO_printf(bio,"subject=%s\n",buf);
2174                         X509_NAME_oneline(X509_get_issuer_name(peer),
2175                                 buf,sizeof buf);
2176                         BIO_printf(bio,"issuer=%s\n",buf);
2177                         }
2178                 else
2179                         BIO_printf(bio,"no peer certificate available\n");
2180
2181                 sk2=SSL_get_client_CA_list(s);
2182                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
2183                         {
2184                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
2185                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
2186                                 {
2187                                 xn=sk_X509_NAME_value(sk2,i);
2188                                 X509_NAME_oneline(xn,buf,sizeof(buf));
2189                                 BIO_write(bio,buf,strlen(buf));
2190                                 BIO_write(bio,"\n",1);
2191                                 }
2192                         }
2193                 else
2194                         {
2195                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
2196                         }
2197                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
2198                 if (p != NULL)
2199                         {
2200                         /* This works only for SSL 2.  In later protocol
2201                          * versions, the client does not know what other
2202                          * ciphers (in addition to the one to be used
2203                          * in the current connection) the server supports. */
2204
2205                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
2206                         j=i=0;
2207                         while (*p)
2208                                 {
2209                                 if (*p == ':')
2210                                         {
2211                                         BIO_write(bio,space,15-j%25);
2212                                         i++;
2213                                         j=0;
2214                                         BIO_write(bio,((i%3)?" ":"\n"),1);
2215                                         }
2216                                 else
2217                                         {
2218                                         BIO_write(bio,p,1);
2219                                         j++;
2220                                         }
2221                                 p++;
2222                                 }
2223                         BIO_write(bio,"\n",1);
2224                         }
2225
2226                 ssl_print_sigalgs(bio, s);
2227                 ssl_print_tmp_key(bio, s);
2228
2229                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
2230                         BIO_number_read(SSL_get_rbio(s)),
2231                         BIO_number_written(SSL_get_wbio(s)));
2232                 }
2233         BIO_printf(bio,(SSL_cache_hit(s)?"---\nReused, ":"---\nNew, "));
2234         c=SSL_get_current_cipher(s);
2235         BIO_printf(bio,"%s, Cipher is %s\n",
2236                 SSL_CIPHER_get_version(c),
2237                 SSL_CIPHER_get_name(c));
2238         if (peer != NULL) {
2239                 EVP_PKEY *pktmp;
2240                 pktmp = X509_get_pubkey(peer);
2241                 BIO_printf(bio,"Server public key is %d bit\n",
2242                                                          EVP_PKEY_bits(pktmp));
2243                 EVP_PKEY_free(pktmp);
2244         }
2245         BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
2246                         SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
2247 #ifndef OPENSSL_NO_COMP
2248         comp=SSL_get_current_compression(s);
2249         expansion=SSL_get_current_expansion(s);
2250         BIO_printf(bio,"Compression: %s\n",
2251                 comp ? SSL_COMP_get_name(comp) : "NONE");
2252         BIO_printf(bio,"Expansion: %s\n",
2253                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
2254 #endif
2255
2256 #ifdef SSL_DEBUG
2257         {
2258         /* Print out local port of connection: useful for debugging */
2259         int sock;
2260         struct sockaddr_in ladd;
2261         socklen_t ladd_size = sizeof(ladd);
2262         sock = SSL_get_fd(s);
2263         getsockname(sock, (struct sockaddr *)&ladd, &ladd_size);
2264         BIO_printf(bio_c_out, "LOCAL PORT is %u\n", ntohs(ladd.sin_port));
2265         }
2266 #endif
2267
2268 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2269         if (next_proto.status != -1) {
2270                 const unsigned char *proto;
2271                 unsigned int proto_len;
2272                 SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
2273                 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
2274                 BIO_write(bio, proto, proto_len);
2275                 BIO_write(bio, "\n", 1);
2276         }
2277 #endif
2278
2279         {
2280         SRTP_PROTECTION_PROFILE *srtp_profile=SSL_get_selected_srtp_profile(s);
2281
2282         if(srtp_profile)
2283                 BIO_printf(bio,"SRTP Extension negotiated, profile=%s\n",
2284                            srtp_profile->name);
2285         }
2286
2287         SSL_SESSION_print(bio,SSL_get_session(s));
2288         if (keymatexportlabel != NULL)
2289                 {
2290                 BIO_printf(bio, "Keying material exporter:\n");
2291                 BIO_printf(bio, "    Label: '%s'\n", keymatexportlabel);
2292                 BIO_printf(bio, "    Length: %i bytes\n", keymatexportlen);
2293                 exportedkeymat = OPENSSL_malloc(keymatexportlen);
2294                 if (exportedkeymat != NULL)
2295                         {
2296                         if (!SSL_export_keying_material(s, exportedkeymat,
2297                                                         keymatexportlen,
2298                                                         keymatexportlabel,
2299                                                         strlen(keymatexportlabel),
2300                                                         NULL, 0, 0))
2301                                 {
2302                                 BIO_printf(bio, "    Error\n");
2303                                 }
2304                         else
2305                                 {
2306                                 BIO_printf(bio, "    Keying material: ");
2307                                 for (i=0; i<keymatexportlen; i++)
2308                                         BIO_printf(bio, "%02X",
2309                                                    exportedkeymat[i]);
2310                                 BIO_printf(bio, "\n");
2311                                 }
2312                         OPENSSL_free(exportedkeymat);
2313                         }
2314                 }
2315         BIO_printf(bio,"---\n");
2316         if (peer != NULL)
2317                 X509_free(peer);
2318         /* flush, or debugging output gets mixed with http response */
2319         (void)BIO_flush(bio);
2320         }
2321
2322 #ifndef OPENSSL_NO_TLSEXT
2323
2324 static int ocsp_resp_cb(SSL *s, void *arg)
2325         {
2326         const unsigned char *p;
2327         int len;
2328         OCSP_RESPONSE *rsp;
2329         len = SSL_get_tlsext_status_ocsp_resp(s, &p);
2330         BIO_puts(arg, "OCSP response: ");
2331         if (!p)
2332                 {
2333                 BIO_puts(arg, "no response sent\n");
2334                 return 1;
2335                 }
2336         rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
2337         if (!rsp)
2338                 {
2339                 BIO_puts(arg, "response parse error\n");
2340                 BIO_dump_indent(arg, (char *)p, len, 4);
2341                 return 0;
2342                 }
2343         BIO_puts(arg, "\n======================================\n");
2344         OCSP_RESPONSE_print(arg, rsp, 0);
2345         BIO_puts(arg, "======================================\n");
2346         OCSP_RESPONSE_free(rsp);
2347         return 1;
2348         }
2349
2350 static int audit_proof_cb(SSL *s, void *arg)
2351         {
2352         const unsigned char *proof;
2353         size_t proof_len;
2354         size_t i;
2355         SSL_SESSION *sess = SSL_get_session(s);
2356
2357         proof = SSL_SESSION_get_tlsext_authz_server_audit_proof(sess,
2358                                                                 &proof_len);
2359         if (proof != NULL)
2360                 {
2361                 BIO_printf(bio_c_out, "Audit proof: ");
2362                 for (i = 0; i < proof_len; ++i)
2363                         BIO_printf(bio_c_out, "%02X", proof[i]);
2364                 BIO_printf(bio_c_out, "\n");
2365                 }
2366         else
2367                 {
2368                 BIO_printf(bio_c_out, "No audit proof found.\n");
2369                 }
2370         return 1;
2371         }
2372 #endif