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