crypto/openssl/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 #endif
 206 static int c_msg=0;
 207 static int c_showcerts=0;
 208
 209 static char *keymatexportlabel=NULL;
 210 static int keymatexportlen=20;
 211
 212 static void sc_usage(void);
 213 static void print_stuff(BIO *berr,SSL *con,int full);
 214 #ifndef OPENSSL_NO_TLSEXT
 215 static int ocsp_resp_cb(SSL *s, void *arg);
 216 #endif
 217 static BIO *bio_c_out=NULL;
 218 static int c_quiet=0;
 219 static int c_ign_eof=0;
 220
 221 #ifndef OPENSSL_NO_PSK
 222 /* Default PSK identity and key */
 223 static char *psk_identity="Client_identity";
 224 /*char *psk_key=NULL;  by default PSK is not used */
 225
 226 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
 227         unsigned int max_identity_len, unsigned char *psk,
 228         unsigned int max_psk_len)
 229         {
 230         unsigned int psk_len = 0;
 231         int ret;
 232         BIGNUM *bn=NULL;
 233
 234         if (c_debug)
 235                 BIO_printf(bio_c_out, "psk_client_cb\n");
 236         if (!hint)
 237                 {
 238                 /* no ServerKeyExchange message*/
 239                 if (c_debug)
 240                         BIO_printf(bio_c_out,"NULL received PSK identity hint, continuing anyway\n");
 241                 }
 242         else if (c_debug)
 243                 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
 244
 245         /* lookup PSK identity and PSK key based on the given identity hint here */
 246         ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity);
 247         if (ret < 0 || (unsigned int)ret > max_identity_len)
 248                 goto out_err;
 249         if (c_debug)
 250                 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity, ret);
 251         ret=BN_hex2bn(&bn, psk_key);
 252         if (!ret)
 253                 {
 254                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
 255                 if (bn)
 256                         BN_free(bn);
 257                 return 0;
 258                 }
 259
 260         if ((unsigned int)BN_num_bytes(bn) > max_psk_len)
 261                 {
 262                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
 263                         max_psk_len, BN_num_bytes(bn));
 264                 BN_free(bn);
 265                 return 0;
 266                 }
 267
 268         psk_len=BN_bn2bin(bn, psk);
 269         BN_free(bn);
 270         if (psk_len == 0)
 271                 goto out_err;
 272
 273         if (c_debug)
 274                 BIO_printf(bio_c_out, "created PSK len=%d\n", psk_len);
 275
 276         return psk_len;
 277  out_err:
 278         if (c_debug)
 279                 BIO_printf(bio_err, "Error in PSK client callback\n");
 280         return 0;
 281         }
 282 #endif
 283
 284 static void sc_usage(void)
 285         {
 286         BIO_printf(bio_err,"usage: s_client args\n");
 287         BIO_printf(bio_err,"\n");
 288         BIO_printf(bio_err," -host host     - use -connect instead\n");
 289         BIO_printf(bio_err," -port port     - use -connect instead\n");
 290         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
 291
 292         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 293         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 294         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 295         BIO_printf(bio_err," -key arg      - Private key file to use, in cert file if\n");
 296         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 297         BIO_printf(bio_err," -keyform arg  - key format (PEM or DER) PEM default\n");
 298         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 299         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 300         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 301         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 302         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 303         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
 304         BIO_printf(bio_err," -debug        - extra output\n");
 305 #ifdef WATT32
 306         BIO_printf(bio_err," -wdebug       - WATT-32 tcp debugging\n");
 307 #endif
 308         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 309         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
 310         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
 311 #ifdef FIONBIO
 312         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 313 #endif
 314         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 315         BIO_printf(bio_err," -quiet        - no s_client output\n");
 316         BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
 317         BIO_printf(bio_err," -no_ign_eof   - don't ignore input eof\n");
 318 #ifndef OPENSSL_NO_PSK
 319         BIO_printf(bio_err," -psk_identity arg - PSK identity\n");
 320         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
 321 # ifndef OPENSSL_NO_JPAKE
 322         BIO_printf(bio_err," -jpake arg    - JPAKE secret to use\n");
 323 # endif
 324 #endif
 325 #ifndef OPENSSL_NO_SRP
 326         BIO_printf(bio_err," -srpuser user     - SRP authentification for 'user'\n");
 327         BIO_printf(bio_err," -srppass arg      - password for 'user'\n");
 328         BIO_printf(bio_err," -srp_lateuser     - SRP username into second ClientHello message\n");
 329         BIO_printf(bio_err," -srp_moregroups   - Tolerate other than the known g N values.\n");
 330         BIO_printf(bio_err," -srp_strength int - minimal mength in bits for N (default %d).\n",SRP_MINIMAL_N);
 331 #endif
 332         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 333         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 334         BIO_printf(bio_err," -tls1_2       - just use TLSv1.2\n");
 335         BIO_printf(bio_err," -tls1_1       - just use TLSv1.1\n");
 336         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 337         BIO_printf(bio_err," -dtls1        - just use DTLSv1\n");
 338         BIO_printf(bio_err," -fallback_scsv - send TLS_FALLBACK_SCSV\n");
 339         BIO_printf(bio_err," -mtu          - set the link layer MTU\n");
 340         BIO_printf(bio_err," -no_tls1_2/-no_tls1_1/-no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 341         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 342         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
 343         BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
 344         BIO_printf(bio_err,"                 command to see what is available\n");
 345         BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
 346         BIO_printf(bio_err,"                 for those protocols that support it, where\n");
 347         BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
 348         BIO_printf(bio_err,"                 only \"smtp\", \"pop3\", \"imap\", \"ftp\" and \"xmpp\"\n");
 349         BIO_printf(bio_err,"                 are supported.\n");
 350 #ifndef OPENSSL_NO_ENGINE
 351         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 352 #endif
 353         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 354         BIO_printf(bio_err," -sess_out arg - file to write SSL session to\n");
 355         BIO_printf(bio_err," -sess_in arg  - file to read SSL session from\n");
 356 #ifndef OPENSSL_NO_TLSEXT
 357         BIO_printf(bio_err," -servername host  - Set TLS extension servername in ClientHello\n");
 358         BIO_printf(bio_err," -tlsextdebug      - hex dump of all TLS extensions received\n");
 359         BIO_printf(bio_err," -status           - request certificate status from server\n");
 360         BIO_printf(bio_err," -no_ticket        - disable use of RFC4507bis session tickets\n");
 361 # ifndef OPENSSL_NO_NEXTPROTONEG
 362         BIO_printf(bio_err," -nextprotoneg arg - enable NPN extension, considering named protocols supported (comma-separated list)\n");
 363 # endif
 364 #endif
 365         BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
 366 #ifndef OPENSSL_NO_SRTP
 367         BIO_printf(bio_err," -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
 368 #endif
 369         BIO_printf(bio_err," -keymatexport label   - Export keying material using label\n");
 370         BIO_printf(bio_err," -keymatexportlen len  - Export len bytes of keying material (default 20)\n");
 371         }
 372
 373 #ifndef OPENSSL_NO_TLSEXT
 374
 375 /* This is a context that we pass to callbacks */
 376 typedef struct tlsextctx_st {
 377    BIO * biodebug;
 378    int ack;
 379 } tlsextctx;
 380
 381
 382 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 383         {
 384         tlsextctx * p = (tlsextctx *) arg;
 385         const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 386         if (SSL_get_servername_type(s) != -1)
 387                 p->ack = !SSL_session_reused(s) && hn != NULL;
 388         else
 389                 BIO_printf(bio_err,"Can't use SSL_get_servername\n");
 390
 391         return SSL_TLSEXT_ERR_OK;
 392         }
 393
 394 #ifndef OPENSSL_NO_SRP
 395
 396 /* This is a context that we pass to all callbacks */
 397 typedef struct srp_arg_st
 398         {
 399         char *srppassin;
 400         char *srplogin;
 401         int msg;   /* copy from c_msg */
 402         int debug; /* copy from c_debug */
 403         int amp;   /* allow more groups */
 404         int strength /* minimal size for N */ ;
 405         } SRP_ARG;
 406
 407 #define SRP_NUMBER_ITERATIONS_FOR_PRIME 64
 408
 409 static int srp_Verify_N_and_g(BIGNUM *N, BIGNUM *g)
 410         {
 411         BN_CTX *bn_ctx = BN_CTX_new();
 412         BIGNUM *p = BN_new();
 413         BIGNUM *r = BN_new();
 414         int ret =
 415                 g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) &&
 416                 BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) &&
 417                 p != NULL && BN_rshift1(p, N) &&
 418
 419                 /* p = (N-1)/2 */
 420                 BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) &&
 421                 r != NULL &&
 422
 423                 /* verify g^((N-1)/2) == -1 (mod N) */
 424                 BN_mod_exp(r, g, p, N, bn_ctx) &&
 425                 BN_add_word(r, 1) &&
 426                 BN_cmp(r, N) == 0;
 427
 428         if(r)
 429                 BN_free(r);
 430         if(p)
 431                 BN_free(p);
 432         if(bn_ctx)
 433                 BN_CTX_free(bn_ctx);
 434         return ret;
 435         }
 436
 437 /* This callback is used here for two purposes:
 438    - extended debugging
 439    - making some primality tests for unknown groups
 440    The callback is only called for a non default group.
 441
 442    An application does not need the call back at all if
 443    only the stanard groups are used.  In real life situations,
 444    client and server already share well known groups,
 445    thus there is no need to verify them.
 446    Furthermore, in case that a server actually proposes a group that
 447    is not one of those defined in RFC 5054, it is more appropriate
 448    to add the group to a static list and then compare since
 449    primality tests are rather cpu consuming.
 450 */
 451
 452 static int MS_CALLBACK ssl_srp_verify_param_cb(SSL *s, void *arg)
 453         {
 454         SRP_ARG *srp_arg = (SRP_ARG *)arg;
 455         BIGNUM *N = NULL, *g = NULL;
 456         if (!(N = SSL_get_srp_N(s)) || !(g = SSL_get_srp_g(s)))
 457                 return 0;
 458         if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1)
 459                 {
 460                 BIO_printf(bio_err, "SRP parameters:\n");
 461                 BIO_printf(bio_err,"\tN="); BN_print(bio_err,N);
 462                 BIO_printf(bio_err,"\n\tg="); BN_print(bio_err,g);
 463                 BIO_printf(bio_err,"\n");
 464                 }
 465
 466         if (SRP_check_known_gN_param(g,N))
 467                 return 1;
 468
 469         if (srp_arg->amp == 1)
 470                 {
 471                 if (srp_arg->debug)
 472                         BIO_printf(bio_err, "SRP param N and g are not known params, going to check deeper.\n");
 473
 474 /* The srp_moregroups is a real debugging feature.
 475    Implementors should rather add the value to the known ones.
 476    The minimal size has already been tested.
 477 */
 478                 if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N,g))
 479                         return 1;
 480                 }
 481         BIO_printf(bio_err, "SRP param N and g rejected.\n");
 482         return 0;
 483         }
 484
 485 #define PWD_STRLEN 1024
 486
 487 static char * MS_CALLBACK ssl_give_srp_client_pwd_cb(SSL *s, void *arg)
 488         {
 489         SRP_ARG *srp_arg = (SRP_ARG *)arg;
 490         char *pass = (char *)OPENSSL_malloc(PWD_STRLEN+1);
 491         PW_CB_DATA cb_tmp;
 492         int l;
 493
 494         cb_tmp.password = (char *)srp_arg->srppassin;
 495         cb_tmp.prompt_info = "SRP user";
 496         if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp))<0)
 497                 {
 498                 BIO_printf (bio_err, "Can't read Password\n");
 499                 OPENSSL_free(pass);
 500                 return NULL;
 501                 }
 502         *(pass+l)= '\0';
 503
 504         return pass;
 505         }
 506
 507 #endif
 508 #ifndef OPENSSL_NO_SRTP
 509         char *srtp_profiles = NULL;
 510 #endif
 511
 512 # ifndef OPENSSL_NO_NEXTPROTONEG
 513 /* This the context that we pass to next_proto_cb */
 514 typedef struct tlsextnextprotoctx_st {
 515         unsigned char *data;
 516         unsigned short len;
 517         int status;
 518 } tlsextnextprotoctx;
 519
 520 static tlsextnextprotoctx next_proto;
 521
 522 static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg)
 523         {
 524         tlsextnextprotoctx *ctx = arg;
 525
 526         if (!c_quiet)
 527                 {
 528                 /* We can assume that |in| is syntactically valid. */
 529                 unsigned i;
 530                 BIO_printf(bio_c_out, "Protocols advertised by server: ");
 531                 for (i = 0; i < inlen; )
 532                         {
 533                         if (i)
 534                                 BIO_write(bio_c_out, ", ", 2);
 535                         BIO_write(bio_c_out, &in[i + 1], in[i]);
 536                         i += in[i] + 1;
 537                         }
 538                 BIO_write(bio_c_out, "\n", 1);
 539                 }
 540
 541         ctx->status = SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
 542         return SSL_TLSEXT_ERR_OK;
 543         }
 544 # endif  /* ndef OPENSSL_NO_NEXTPROTONEG */
 545 #endif
 546
 547 enum
 548 {
 549         PROTO_OFF       = 0,
 550         PROTO_SMTP,
 551         PROTO_POP3,
 552         PROTO_IMAP,
 553         PROTO_FTP,
 554         PROTO_XMPP
 555 };
 556
 557 int MAIN(int, char **);
 558
 559 int MAIN(int argc, char **argv)
 560         {
 561         unsigned int off=0, clr=0;
 562         SSL *con=NULL;
 563 #ifndef OPENSSL_NO_KRB5
 564         KSSL_CTX *kctx;
 565 #endif
 566         int s,k,width,state=0;
 567         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
 568         int cbuf_len,cbuf_off;
 569         int sbuf_len,sbuf_off;
 570         fd_set readfds,writefds;
 571         short port=PORT;
 572         int full_log=1;
 573         char *host=SSL_HOST_NAME;
 574         char *cert_file=NULL,*key_file=NULL;
 575         int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
 576         char *passarg = NULL, *pass = NULL;
 577         X509 *cert = NULL;
 578         EVP_PKEY *key = NULL;
 579         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 580         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 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 fallback_scsv = 0;
 620         int enable_timeouts = 0 ;
 621         long socket_mtu = 0;
 622 #ifndef OPENSSL_NO_JPAKE
 623         char *jpake_secret = NULL;
 624 #endif
 625 #ifndef OPENSSL_NO_SRP
 626         char * srppass = NULL;
 627         int srp_lateuser = 0;
 628         SRP_ARG srp_arg = {NULL,NULL,0,0,0,1024};
 629 #endif
 630
 631         meth=SSLv23_client_method();
 632
 633         apps_startup();
 634         c_Pause=0;
 635         c_quiet=0;
 636         c_ign_eof=0;
 637         c_debug=0;
 638         c_msg=0;
 639         c_showcerts=0;
 640
 641         if (bio_err == NULL)
 642                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 643
 644         if (!load_config(bio_err, NULL))
 645                 goto end;
 646
 647         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 648                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 649                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
 650                 {
 651                 BIO_printf(bio_err,"out of memory\n");
 652                 goto end;
 653                 }
 654
 655         verify_depth=0;
 656         verify_error=X509_V_OK;
 657 #ifdef FIONBIO
 658         c_nbio=0;
 659 #endif
 660
 661         argc--;
 662         argv++;
 663         while (argc >= 1)
 664                 {
 665                 if      (strcmp(*argv,"-host") == 0)
 666                         {
 667                         if (--argc < 1) goto bad;
 668                         host= *(++argv);
 669                         }
 670                 else if (strcmp(*argv,"-port") == 0)
 671                         {
 672                         if (--argc < 1) goto bad;
 673                         port=atoi(*(++argv));
 674                         if (port == 0) goto bad;
 675                         }
 676                 else if (strcmp(*argv,"-connect") == 0)
 677                         {
 678                         if (--argc < 1) goto bad;
 679                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 680                                 goto bad;
 681                         }
 682                 else if (strcmp(*argv,"-verify") == 0)
 683                         {
 684                         verify=SSL_VERIFY_PEER;
 685                         if (--argc < 1) goto bad;
 686                         verify_depth=atoi(*(++argv));
 687                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 688                         }
 689                 else if (strcmp(*argv,"-cert") == 0)
 690                         {
 691                         if (--argc < 1) goto bad;
 692                         cert_file= *(++argv);
 693                         }
 694                 else if (strcmp(*argv,"-sess_out") == 0)
 695                         {
 696                         if (--argc < 1) goto bad;
 697                         sess_out = *(++argv);
 698                         }
 699                 else if (strcmp(*argv,"-sess_in") == 0)
 700                         {
 701                         if (--argc < 1) goto bad;
 702                         sess_in = *(++argv);
 703                         }
 704                 else if (strcmp(*argv,"-certform") == 0)
 705                         {
 706                         if (--argc < 1) goto bad;
 707                         cert_format = str2fmt(*(++argv));
 708                         }
 709                 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm))
 710                         {
 711                         if (badarg)
 712                                 goto bad;
 713                         continue;
 714                         }
 715                 else if (strcmp(*argv,"-verify_return_error") == 0)
 716                         verify_return_error = 1;
 717                 else if (strcmp(*argv,"-prexit") == 0)
 718                         prexit=1;
 719                 else if (strcmp(*argv,"-crlf") == 0)
 720                         crlf=1;
 721                 else if (strcmp(*argv,"-quiet") == 0)
 722                         {
 723                         c_quiet=1;
 724                         c_ign_eof=1;
 725                         }
 726                 else if (strcmp(*argv,"-ign_eof") == 0)
 727                         c_ign_eof=1;
 728                 else if (strcmp(*argv,"-no_ign_eof") == 0)
 729                         c_ign_eof=0;
 730                 else if (strcmp(*argv,"-pause") == 0)
 731                         c_Pause=1;
 732                 else if (strcmp(*argv,"-debug") == 0)
 733                         c_debug=1;
 734 #ifndef OPENSSL_NO_TLSEXT
 735                 else if (strcmp(*argv,"-tlsextdebug") == 0)
 736                         c_tlsextdebug=1;
 737                 else if (strcmp(*argv,"-status") == 0)
 738                         c_status_req=1;
 739 #endif
 740 #ifdef WATT32
 741                 else if (strcmp(*argv,"-wdebug") == 0)
 742                         dbug_init();
 743 #endif
 744                 else if (strcmp(*argv,"-msg") == 0)
 745                         c_msg=1;
 746                 else if (strcmp(*argv,"-showcerts") == 0)
 747                         c_showcerts=1;
 748                 else if (strcmp(*argv,"-nbio_test") == 0)
 749                         nbio_test=1;
 750                 else if (strcmp(*argv,"-state") == 0)
 751                         state=1;
 752 #ifndef OPENSSL_NO_PSK
 753                 else if (strcmp(*argv,"-psk_identity") == 0)
 754                         {
 755                         if (--argc < 1) goto bad;
 756                         psk_identity=*(++argv);
 757                         }
 758                 else if (strcmp(*argv,"-psk") == 0)
 759                         {
 760                         size_t j;
 761
 762                         if (--argc < 1) goto bad;
 763                         psk_key=*(++argv);
 764                         for (j = 0; j < strlen(psk_key); j++)
 765                                 {
 766                                 if (isxdigit((unsigned char)psk_key[j]))
 767                                         continue;
 768                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
 769                                 goto bad;
 770                                 }
 771                         }
 772 #endif
 773 #ifndef OPENSSL_NO_SRP
 774                 else if (strcmp(*argv,"-srpuser") == 0)
 775                         {
 776                         if (--argc < 1) goto bad;
 777                         srp_arg.srplogin= *(++argv);
 778                         meth=TLSv1_client_method();
 779                         }
 780                 else if (strcmp(*argv,"-srppass") == 0)
 781                         {
 782                         if (--argc < 1) goto bad;
 783                         srppass= *(++argv);
 784                         meth=TLSv1_client_method();
 785                         }
 786                 else if (strcmp(*argv,"-srp_strength") == 0)
 787                         {
 788                         if (--argc < 1) goto bad;
 789                         srp_arg.strength=atoi(*(++argv));
 790                         BIO_printf(bio_err,"SRP minimal length for N is %d\n",srp_arg.strength);
 791                         meth=TLSv1_client_method();
 792                         }
 793                 else if (strcmp(*argv,"-srp_lateuser") == 0)
 794                         {
 795                         srp_lateuser= 1;
 796                         meth=TLSv1_client_method();
 797                         }
 798                 else if (strcmp(*argv,"-srp_moregroups") == 0)
 799                         {
 800                         srp_arg.amp=1;
 801                         meth=TLSv1_client_method();
 802                         }
 803 #endif
 804 #ifndef OPENSSL_NO_SSL2
 805                 else if (strcmp(*argv,"-ssl2") == 0)
 806                         meth=SSLv2_client_method();
 807 #endif
 808 #ifndef OPENSSL_NO_SSL3
 809                 else if (strcmp(*argv,"-ssl3") == 0)
 810                         meth=SSLv3_client_method();
 811 #endif
 812 #ifndef OPENSSL_NO_TLS1
 813                 else if (strcmp(*argv,"-tls1_2") == 0)
 814                         meth=TLSv1_2_client_method();
 815                 else if (strcmp(*argv,"-tls1_1") == 0)
 816                         meth=TLSv1_1_client_method();
 817                 else if (strcmp(*argv,"-tls1") == 0)
 818                         meth=TLSv1_client_method();
 819 #endif
 820 #ifndef OPENSSL_NO_DTLS1
 821                 else if (strcmp(*argv,"-dtls1") == 0)
 822                         {
 823                         meth=DTLSv1_client_method();
 824                         socket_type=SOCK_DGRAM;
 825                         }
 826                 else if (strcmp(*argv,"-fallback_scsv") == 0)
 827                         {
 828                         fallback_scsv = 1;
 829                         }
 830                 else if (strcmp(*argv,"-timeout") == 0)
 831                         enable_timeouts=1;
 832                 else if (strcmp(*argv,"-mtu") == 0)
 833                         {
 834                         if (--argc < 1) goto bad;
 835                         socket_mtu = atol(*(++argv));
 836                         }
 837 #endif
 838                 else if (strcmp(*argv,"-bugs") == 0)
 839                         bugs=1;
 840                 else if (strcmp(*argv,"-keyform") == 0)
 841                         {
 842                         if (--argc < 1) goto bad;
 843                         key_format = str2fmt(*(++argv));
 844                         }
 845                 else if (strcmp(*argv,"-pass") == 0)
 846                         {
 847                         if (--argc < 1) goto bad;
 848                         passarg = *(++argv);
 849                         }
 850                 else if (strcmp(*argv,"-key") == 0)
 851                         {
 852                         if (--argc < 1) goto bad;
 853                         key_file= *(++argv);
 854                         }
 855                 else if (strcmp(*argv,"-reconnect") == 0)
 856                         {
 857                         reconnect=5;
 858                         }
 859                 else if (strcmp(*argv,"-CApath") == 0)
 860                         {
 861                         if (--argc < 1) goto bad;
 862                         CApath= *(++argv);
 863                         }
 864                 else if (strcmp(*argv,"-CAfile") == 0)
 865                         {
 866                         if (--argc < 1) goto bad;
 867                         CAfile= *(++argv);
 868                         }
 869                 else if (strcmp(*argv,"-no_tls1_2") == 0)
 870                         off|=SSL_OP_NO_TLSv1_2;
 871                 else if (strcmp(*argv,"-no_tls1_1") == 0)
 872                         off|=SSL_OP_NO_TLSv1_1;
 873                 else if (strcmp(*argv,"-no_tls1") == 0)
 874                         off|=SSL_OP_NO_TLSv1;
 875                 else if (strcmp(*argv,"-no_ssl3") == 0)
 876                         off|=SSL_OP_NO_SSLv3;
 877                 else if (strcmp(*argv,"-no_ssl2") == 0)
 878                         off|=SSL_OP_NO_SSLv2;
 879                 else if (strcmp(*argv,"-no_comp") == 0)
 880                         { off|=SSL_OP_NO_COMPRESSION; }
 881 #ifndef OPENSSL_NO_TLSEXT
 882                 else if (strcmp(*argv,"-no_ticket") == 0)
 883                         { off|=SSL_OP_NO_TICKET; }
 884 # ifndef OPENSSL_NO_NEXTPROTONEG
 885                 else if (strcmp(*argv,"-nextprotoneg") == 0)
 886                         {
 887                         if (--argc < 1) goto bad;
 888                         next_proto_neg_in = *(++argv);
 889                         }
 890 # endif
 891 #endif
 892                 else if (strcmp(*argv,"-serverpref") == 0)
 893                         off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
 894                 else if (strcmp(*argv,"-legacy_renegotiation") == 0)
 895                         off|=SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION;
 896                 else if (strcmp(*argv,"-legacy_server_connect") == 0)
 897                         { off|=SSL_OP_LEGACY_SERVER_CONNECT; }
 898                 else if (strcmp(*argv,"-no_legacy_server_connect") == 0)
 899                         { clr|=SSL_OP_LEGACY_SERVER_CONNECT; }
 900                 else if (strcmp(*argv,"-cipher") == 0)
 901                         {
 902                         if (--argc < 1) goto bad;
 903                         cipher= *(++argv);
 904                         }
 905 #ifdef FIONBIO
 906                 else if (strcmp(*argv,"-nbio") == 0)
 907                         { c_nbio=1; }
 908 #endif
 909                 else if (strcmp(*argv,"-starttls") == 0)
 910                         {
 911                         if (--argc < 1) goto bad;
 912                         ++argv;
 913                         if (strcmp(*argv,"smtp") == 0)
 914                                 starttls_proto = PROTO_SMTP;
 915                         else if (strcmp(*argv,"pop3") == 0)
 916                                 starttls_proto = PROTO_POP3;
 917                         else if (strcmp(*argv,"imap") == 0)
 918                                 starttls_proto = PROTO_IMAP;
 919                         else if (strcmp(*argv,"ftp") == 0)
 920                                 starttls_proto = PROTO_FTP;
 921                         else if (strcmp(*argv, "xmpp") == 0)
 922                                 starttls_proto = PROTO_XMPP;
 923                         else
 924                                 goto bad;
 925                         }
 926 #ifndef OPENSSL_NO_ENGINE
 927                 else if (strcmp(*argv,"-engine") == 0)
 928                         {
 929                         if (--argc < 1) goto bad;
 930                         engine_id = *(++argv);
 931                         }
 932                 else if (strcmp(*argv,"-ssl_client_engine") == 0)
 933                         {
 934                         if (--argc < 1) goto bad;
 935                         ssl_client_engine_id = *(++argv);
 936                         }
 937 #endif
 938                 else if (strcmp(*argv,"-rand") == 0)
 939                         {
 940                         if (--argc < 1) goto bad;
 941                         inrand= *(++argv);
 942                         }
 943 #ifndef OPENSSL_NO_TLSEXT
 944                 else if (strcmp(*argv,"-servername") == 0)
 945                         {
 946                         if (--argc < 1) goto bad;
 947                         servername= *(++argv);
 948                         /* meth=TLSv1_client_method(); */
 949                         }
 950 #endif
 951 #ifndef OPENSSL_NO_JPAKE
 952                 else if (strcmp(*argv,"-jpake") == 0)
 953                         {
 954                         if (--argc < 1) goto bad;
 955                         jpake_secret = *++argv;
 956                         }
 957 #endif
 958 #ifndef OPENSSL_NO_SRTP
 959                 else if (strcmp(*argv,"-use_srtp") == 0)
 960                         {
 961                         if (--argc < 1) goto bad;
 962                         srtp_profiles = *(++argv);
 963                         }
 964 #endif
 965                 else if (strcmp(*argv,"-keymatexport") == 0)
 966                         {
 967                         if (--argc < 1) goto bad;
 968                         keymatexportlabel= *(++argv);
 969                         }
 970                 else if (strcmp(*argv,"-keymatexportlen") == 0)
 971                         {
 972                         if (--argc < 1) goto bad;
 973                         keymatexportlen=atoi(*(++argv));
 974                         if (keymatexportlen == 0) goto bad;
 975                         }
 976                 else
 977                         {
 978                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 979                         badop=1;
 980                         break;
 981                         }
 982                 argc--;
 983                 argv++;
 984                 }
 985         if (badop)
 986                 {
 987 bad:
 988                 sc_usage();
 989                 goto end;
 990                 }
 991
 992 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
 993         if (jpake_secret)
 994                 {
 995                 if (psk_key)
 996                         {
 997                         BIO_printf(bio_err,
 998                                    "Can't use JPAKE and PSK together\n");
 999                         goto end;
1000                         }
1001                 psk_identity = "JPAKE";
1002                 if (cipher)
1003                         {
1004                         BIO_printf(bio_err, "JPAKE sets cipher to PSK\n");
1005                         goto end;
1006                         }
1007                 cipher = "PSK";
1008                 }
1009 #endif
1010
1011         OpenSSL_add_ssl_algorithms();
1012         SSL_load_error_strings();
1013
1014 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
1015         next_proto.status = -1;
1016         if (next_proto_neg_in)
1017                 {
1018                 next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in);
1019                 if (next_proto.data == NULL)
1020                         {
1021                         BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
1022                         goto end;
1023                         }
1024                 }
1025         else
1026                 next_proto.data = NULL;
1027 #endif
1028
1029 #ifndef OPENSSL_NO_ENGINE
1030         e = setup_engine(bio_err, engine_id, 1);
1031         if (ssl_client_engine_id)
1032                 {
1033                 ssl_client_engine = ENGINE_by_id(ssl_client_engine_id);
1034                 if (!ssl_client_engine)
1035                         {
1036                         BIO_printf(bio_err,
1037                                         "Error getting client auth engine\n");
1038                         goto end;
1039                         }
1040                 }
1041
1042 #endif
1043         if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
1044                 {
1045                 BIO_printf(bio_err, "Error getting password\n");
1046                 goto end;
1047                 }
1048
1049         if (key_file == NULL)
1050                 key_file = cert_file;
1051
1052
1053         if (key_file)
1054
1055                 {
1056
1057                 key = load_key(bio_err, key_file, key_format, 0, pass, e,
1058                                "client certificate private key file");
1059                 if (!key)
1060                         {
1061                         ERR_print_errors(bio_err);
1062                         goto end;
1063                         }
1064
1065                 }
1066
1067         if (cert_file)
1068
1069                 {
1070                 cert = load_cert(bio_err,cert_file,cert_format,
1071                                 NULL, e, "client certificate file");
1072
1073                 if (!cert)
1074                         {
1075                         ERR_print_errors(bio_err);
1076                         goto end;
1077                         }
1078                 }
1079
1080         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1081                 && !RAND_status())
1082                 {
1083                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
1084                 }
1085         if (inrand != NULL)
1086                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
1087                         app_RAND_load_files(inrand));
1088
1089         if (bio_c_out == NULL)
1090                 {
1091                 if (c_quiet && !c_debug && !c_msg)
1092                         {
1093                         bio_c_out=BIO_new(BIO_s_null());
1094                         }
1095                 else
1096                         {
1097                         if (bio_c_out == NULL)
1098                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
1099                         }
1100                 }
1101
1102 #ifndef OPENSSL_NO_SRP
1103         if(!app_passwd(bio_err, srppass, NULL, &srp_arg.srppassin, NULL))
1104                 {
1105                 BIO_printf(bio_err, "Error getting password\n");
1106                 goto end;
1107                 }
1108 #endif
1109
1110         ctx=SSL_CTX_new(meth);
1111         if (ctx == NULL)
1112                 {
1113                 ERR_print_errors(bio_err);
1114                 goto end;
1115                 }
1116
1117         if (vpm)
1118                 SSL_CTX_set1_param(ctx, vpm);
1119
1120 #ifndef OPENSSL_NO_ENGINE
1121         if (ssl_client_engine)
1122                 {
1123                 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine))
1124                         {
1125                         BIO_puts(bio_err, "Error setting client auth engine\n");
1126                         ERR_print_errors(bio_err);
1127                         ENGINE_free(ssl_client_engine);
1128                         goto end;
1129                         }
1130                 ENGINE_free(ssl_client_engine);
1131                 }
1132 #endif
1133
1134 #ifndef OPENSSL_NO_PSK
1135 #ifdef OPENSSL_NO_JPAKE
1136         if (psk_key != NULL)
1137 #else
1138         if (psk_key != NULL || jpake_secret)
1139 #endif
1140                 {
1141                 if (c_debug)
1142                         BIO_printf(bio_c_out, "PSK key given or JPAKE in use, setting client callback\n");
1143                 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1144                 }
1145 #endif
1146 #ifndef OPENSSL_NO_SRTP
1147         if (srtp_profiles != NULL)
1148                 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
1149 #endif
1150         if (bugs)
1151                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
1152         else
1153                 SSL_CTX_set_options(ctx,off);
1154
1155         if (clr)
1156                 SSL_CTX_clear_options(ctx, clr);
1157         /* DTLS: partial reads end up discarding unread UDP bytes :-(
1158          * Setting read ahead solves this problem.
1159          */
1160         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1161
1162 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
1163         if (next_proto.data)
1164                 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
1165 #endif
1166
1167         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1168         if (cipher != NULL)
1169                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
1170                 BIO_printf(bio_err,"error setting cipher list\n");
1171                 ERR_print_errors(bio_err);
1172                 goto end;
1173         }
1174 #if 0
1175         else
1176                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
1177 #endif
1178
1179         SSL_CTX_set_verify(ctx,verify,verify_callback);
1180         if (!set_cert_key_stuff(ctx,cert,key))
1181                 goto end;
1182
1183         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1184                 (!SSL_CTX_set_default_verify_paths(ctx)))
1185                 {
1186                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
1187                 ERR_print_errors(bio_err);
1188                 /* goto end; */
1189                 }
1190
1191 #ifndef OPENSSL_NO_TLSEXT
1192         if (servername != NULL)
1193                 {
1194                 tlsextcbp.biodebug = bio_err;
1195                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1196                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1197                 }
1198 #ifndef OPENSSL_NO_SRP
1199         if (srp_arg.srplogin)
1200                 {
1201                 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin))
1202                         {
1203                         BIO_printf(bio_err,"Unable to set SRP username\n");
1204                         goto end;
1205                         }
1206                 srp_arg.msg = c_msg;
1207                 srp_arg.debug = c_debug ;
1208                 SSL_CTX_set_srp_cb_arg(ctx,&srp_arg);
1209                 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb);
1210                 SSL_CTX_set_srp_strength(ctx, srp_arg.strength);
1211                 if (c_msg || c_debug || srp_arg.amp == 0)
1212                         SSL_CTX_set_srp_verify_param_callback(ctx, ssl_srp_verify_param_cb);
1213                 }
1214
1215 #endif
1216 #endif
1217
1218         con=SSL_new(ctx);
1219         if (sess_in)
1220                 {
1221                 SSL_SESSION *sess;
1222                 BIO *stmp = BIO_new_file(sess_in, "r");
1223                 if (!stmp)
1224                         {
1225                         BIO_printf(bio_err, "Can't open session file %s\n",
1226                                                 sess_in);
1227                         ERR_print_errors(bio_err);
1228                         goto end;
1229                         }
1230                 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1231                 BIO_free(stmp);
1232                 if (!sess)
1233                         {
1234                         BIO_printf(bio_err, "Can't open session file %s\n",
1235                                                 sess_in);
1236                         ERR_print_errors(bio_err);
1237                         goto end;
1238                         }
1239                 SSL_set_session(con, sess);
1240                 SSL_SESSION_free(sess);
1241                 }
1242
1243         if (fallback_scsv)
1244                 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV);
1245
1246 #ifndef OPENSSL_NO_TLSEXT
1247         if (servername != NULL)
1248                 {
1249                 if (!SSL_set_tlsext_host_name(con,servername))
1250                         {
1251                         BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
1252                         ERR_print_errors(bio_err);
1253                         goto end;
1254                         }
1255                 }
1256 #endif
1257 #ifndef OPENSSL_NO_KRB5
1258         if (con  &&  (kctx = kssl_ctx_new()) != NULL)
1259                 {
1260                 SSL_set0_kssl_ctx(con, kctx);
1261                 kssl_ctx_setstring(kctx, KSSL_SERVER, host);
1262                 }
1263 #endif  /* OPENSSL_NO_KRB5  */
1264 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
1265 #if 0
1266 #ifdef TLSEXT_TYPE_opaque_prf_input
1267         SSL_set_tlsext_opaque_prf_input(con, "Test client", 11);
1268 #endif
1269 #endif
1270
1271 re_start:
1272
1273         if (init_client(&s,host,port,socket_type) == 0)
1274                 {
1275                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
1276                 SHUTDOWN(s);
1277                 goto end;
1278                 }
1279         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
1280
1281 #ifdef FIONBIO
1282         if (c_nbio)
1283                 {
1284                 unsigned long l=1;
1285                 BIO_printf(bio_c_out,"turning on non blocking io\n");
1286                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
1287                         {
1288                         ERR_print_errors(bio_err);
1289                         goto end;
1290                         }
1291                 }
1292 #endif
1293         if (c_Pause & 0x01) SSL_set_debug(con, 1);
1294
1295         if ( SSL_version(con) == DTLS1_VERSION)
1296                 {
1297
1298                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
1299                 if (getsockname(s, &peer, (void *)&peerlen) < 0)
1300                         {
1301                         BIO_printf(bio_err, "getsockname:errno=%d\n",
1302                                 get_last_socket_error());
1303                         SHUTDOWN(s);
1304                         goto end;
1305                         }
1306
1307                 (void)BIO_ctrl_set_connected(sbio, 1, &peer);
1308
1309                 if (enable_timeouts)
1310                         {
1311                         timeout.tv_sec = 0;
1312                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
1313                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
1314
1315                         timeout.tv_sec = 0;
1316                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
1317                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
1318                         }
1319
1320                 if (socket_mtu > 28)
1321                         {
1322                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
1323                         SSL_set_mtu(con, socket_mtu - 28);
1324                         }
1325                 else
1326                         /* want to do MTU discovery */
1327                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
1328                 }
1329         else
1330                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
1331
1332         if (nbio_test)
1333                 {
1334                 BIO *test;
1335
1336                 test=BIO_new(BIO_f_nbio_test());
1337                 sbio=BIO_push(test,sbio);
1338                 }
1339
1340         if (c_debug)
1341                 {
1342                 SSL_set_debug(con, 1);
1343                 BIO_set_callback(sbio,bio_dump_callback);
1344                 BIO_set_callback_arg(sbio,(char *)bio_c_out);
1345                 }
1346         if (c_msg)
1347                 {
1348                 SSL_set_msg_callback(con, msg_cb);
1349                 SSL_set_msg_callback_arg(con, bio_c_out);
1350                 }
1351 #ifndef OPENSSL_NO_TLSEXT
1352         if (c_tlsextdebug)
1353                 {
1354                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1355                 SSL_set_tlsext_debug_arg(con, bio_c_out);
1356                 }
1357         if (c_status_req)
1358                 {
1359                 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
1360                 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
1361                 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
1362 #if 0
1363 {
1364 STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null();
1365 OCSP_RESPID *id = OCSP_RESPID_new();
1366 id->value.byKey = ASN1_OCTET_STRING_new();
1367 id->type = V_OCSP_RESPID_KEY;
1368 ASN1_STRING_set(id->value.byKey, "Hello World", -1);
1369 sk_OCSP_RESPID_push(ids, id);
1370 SSL_set_tlsext_status_ids(con, ids);
1371 }
1372 #endif
1373                 }
1374 #endif
1375 #ifndef OPENSSL_NO_JPAKE
1376         if (jpake_secret)
1377                 jpake_client_auth(bio_c_out, sbio, jpake_secret);
1378 #endif
1379
1380         SSL_set_bio(con,sbio,sbio);
1381         SSL_set_connect_state(con);
1382
1383         /* ok, lets connect */
1384         width=SSL_get_fd(con)+1;
1385
1386         read_tty=1;
1387         write_tty=0;
1388         tty_on=0;
1389         read_ssl=1;
1390         write_ssl=1;
1391
1392         cbuf_len=0;
1393         cbuf_off=0;
1394         sbuf_len=0;
1395         sbuf_off=0;
1396
1397         /* This is an ugly hack that does a lot of assumptions */
1398         /* We do have to handle multi-line responses which may come
1399            in a single packet or not. We therefore have to use
1400            BIO_gets() which does need a buffering BIO. So during
1401            the initial chitchat we do push a buffering BIO into the
1402            chain that is removed again later on to not disturb the
1403            rest of the s_client operation. */
1404         if (starttls_proto == PROTO_SMTP)
1405                 {
1406                 int foundit=0;
1407                 BIO *fbio = BIO_new(BIO_f_buffer());
1408                 BIO_push(fbio, sbio);
1409                 /* wait for multi-line response to end from SMTP */
1410                 do
1411                         {
1412                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1413                         }
1414                 while (mbuf_len>3 && mbuf[3]=='-');
1415                 /* STARTTLS command requires EHLO... */
1416                 BIO_printf(fbio,"EHLO openssl.client.net\r\n");
1417                 (void)BIO_flush(fbio);
1418                 /* wait for multi-line response to end EHLO SMTP response */
1419                 do
1420                         {
1421                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1422                         if (strstr(mbuf,"STARTTLS"))
1423                                 foundit=1;
1424                         }
1425                 while (mbuf_len>3 && mbuf[3]=='-');
1426                 (void)BIO_flush(fbio);
1427                 BIO_pop(fbio);
1428                 BIO_free(fbio);
1429                 if (!foundit)
1430                         BIO_printf(bio_err,
1431                                    "didn't found starttls in server response,"
1432                                    " try anyway...\n");
1433                 BIO_printf(sbio,"STARTTLS\r\n");
1434                 BIO_read(sbio,sbuf,BUFSIZZ);
1435                 }
1436         else if (starttls_proto == PROTO_POP3)
1437                 {
1438                 BIO_read(sbio,mbuf,BUFSIZZ);
1439                 BIO_printf(sbio,"STLS\r\n");
1440                 BIO_read(sbio,sbuf,BUFSIZZ);
1441                 }
1442         else if (starttls_proto == PROTO_IMAP)
1443                 {
1444                 int foundit=0;
1445                 BIO *fbio = BIO_new(BIO_f_buffer());
1446                 BIO_push(fbio, sbio);
1447                 BIO_gets(fbio,mbuf,BUFSIZZ);
1448                 /* STARTTLS command requires CAPABILITY... */
1449                 BIO_printf(fbio,". CAPABILITY\r\n");
1450                 (void)BIO_flush(fbio);
1451                 /* wait for multi-line CAPABILITY response */
1452                 do
1453                         {
1454                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1455                         if (strstr(mbuf,"STARTTLS"))
1456                                 foundit=1;
1457                         }
1458                 while (mbuf_len>3 && mbuf[0]!='.');
1459                 (void)BIO_flush(fbio);
1460                 BIO_pop(fbio);
1461                 BIO_free(fbio);
1462                 if (!foundit)
1463                         BIO_printf(bio_err,
1464                                    "didn't found STARTTLS in server response,"
1465                                    " try anyway...\n");
1466                 BIO_printf(sbio,". STARTTLS\r\n");
1467                 BIO_read(sbio,sbuf,BUFSIZZ);
1468                 }
1469         else if (starttls_proto == PROTO_FTP)
1470                 {
1471                 BIO *fbio = BIO_new(BIO_f_buffer());
1472                 BIO_push(fbio, sbio);
1473                 /* wait for multi-line response to end from FTP */
1474                 do
1475                         {
1476                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1477                         }
1478                 while (mbuf_len>3 && mbuf[3]=='-');
1479                 (void)BIO_flush(fbio);
1480                 BIO_pop(fbio);
1481                 BIO_free(fbio);
1482                 BIO_printf(sbio,"AUTH TLS\r\n");
1483                 BIO_read(sbio,sbuf,BUFSIZZ);
1484                 }
1485         if (starttls_proto == PROTO_XMPP)
1486                 {
1487                 int seen = 0;
1488                 BIO_printf(sbio,"<stream:stream "
1489                     "xmlns:stream='http://etherx.jabber.org/streams' "
1490                     "xmlns='jabber:client' to='%s' version='1.0'>", host);
1491                 seen = BIO_read(sbio,mbuf,BUFSIZZ);
1492                 mbuf[seen] = 0;
1493                 while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'"))
1494                         {
1495                         if (strstr(mbuf, "/stream:features>"))
1496                                 goto shut;
1497                         seen = BIO_read(sbio,mbuf,BUFSIZZ);
1498                         mbuf[seen] = 0;
1499                         }
1500                 BIO_printf(sbio, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
1501                 seen = BIO_read(sbio,sbuf,BUFSIZZ);
1502                 sbuf[seen] = 0;
1503                 if (!strstr(sbuf, "<proceed"))
1504                         goto shut;
1505                 mbuf[0] = 0;
1506                 }
1507
1508         for (;;)
1509                 {
1510                 FD_ZERO(&readfds);
1511                 FD_ZERO(&writefds);
1512
1513                 if ((SSL_version(con) == DTLS1_VERSION) &&
1514                         DTLSv1_get_timeout(con, &timeout))
1515                         timeoutp = &timeout;
1516                 else
1517                         timeoutp = NULL;
1518
1519                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
1520                         {
1521                         in_init=1;
1522                         tty_on=0;
1523                         }
1524                 else
1525                         {
1526                         tty_on=1;
1527                         if (in_init)
1528                                 {
1529                                 in_init=0;
1530 #if 0 /* This test doesn't really work as intended (needs to be fixed) */
1531 #ifndef OPENSSL_NO_TLSEXT
1532                                 if (servername != NULL && !SSL_session_reused(con))
1533                                         {
1534                                         BIO_printf(bio_c_out,"Server did %sacknowledge servername extension.\n",tlsextcbp.ack?"":"not ");
1535                                         }
1536 #endif
1537 #endif
1538                                 if (sess_out)
1539                                         {
1540                                         BIO *stmp = BIO_new_file(sess_out, "w");
1541                                         if (stmp)
1542                                                 {
1543                                                 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
1544                                                 BIO_free(stmp);
1545                                                 }
1546                                         else
1547                                                 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
1548                                         }
1549                                 print_stuff(bio_c_out,con,full_log);
1550                                 if (full_log > 0) full_log--;
1551
1552                                 if (starttls_proto)
1553                                         {
1554                                         BIO_printf(bio_err,"%s",mbuf);
1555                                         /* We don't need to know any more */
1556                                         starttls_proto = PROTO_OFF;
1557                                         }
1558
1559                                 if (reconnect)
1560                                         {
1561                                         reconnect--;
1562                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
1563                                         SSL_shutdown(con);
1564                                         SSL_set_connect_state(con);
1565                                         SHUTDOWN(SSL_get_fd(con));
1566                                         goto re_start;
1567                                         }
1568                                 }
1569                         }
1570
1571                 ssl_pending = read_ssl && SSL_pending(con);
1572
1573                 if (!ssl_pending)
1574                         {
1575 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined (OPENSSL_SYS_BEOS_R5)
1576                         if (tty_on)
1577                                 {
1578                                 if (read_tty)  openssl_fdset(fileno(stdin),&readfds);
1579                                 if (write_tty) openssl_fdset(fileno(stdout),&writefds);
1580                                 }
1581                         if (read_ssl)
1582                                 openssl_fdset(SSL_get_fd(con),&readfds);
1583                         if (write_ssl)
1584                                 openssl_fdset(SSL_get_fd(con),&writefds);
1585 #else
1586                         if(!tty_on || !write_tty) {
1587                                 if (read_ssl)
1588                                         openssl_fdset(SSL_get_fd(con),&readfds);
1589                                 if (write_ssl)
1590                                         openssl_fdset(SSL_get_fd(con),&writefds);
1591                         }
1592 #endif
1593 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
1594                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1595
1596                         /* Note: under VMS with SOCKETSHR the second parameter
1597                          * is currently of type (int *) whereas under other
1598                          * systems it is (void *) if you don't have a cast it
1599                          * will choke the compiler: if you do have a cast then
1600                          * you can either go for (int *) or (void *).
1601                          */
1602 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1603                         /* Under Windows/DOS we make the assumption that we can
1604                          * always write to the tty: therefore if we need to
1605                          * write to the tty we just fall through. Otherwise
1606                          * we timeout the select every second and see if there
1607                          * are any keypresses. Note: this is a hack, in a proper
1608                          * Windows application we wouldn't do this.
1609                          */
1610                         i=0;
1611                         if(!write_tty) {
1612                                 if(read_tty) {
1613                                         tv.tv_sec = 1;
1614                                         tv.tv_usec = 0;
1615                                         i=select(width,(void *)&readfds,(void *)&writefds,
1616                                                  NULL,&tv);
1617 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1618                                         if(!i && (!_kbhit() || !read_tty) ) continue;
1619 #else
1620                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
1621 #endif
1622                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1623                                          NULL,timeoutp);
1624                         }
1625 #elif defined(OPENSSL_SYS_NETWARE)
1626                         if(!write_tty) {
1627                                 if(read_tty) {
1628                                         tv.tv_sec = 1;
1629                                         tv.tv_usec = 0;
1630                                         i=select(width,(void *)&readfds,(void *)&writefds,
1631                                                 NULL,&tv);
1632                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1633                                         NULL,timeoutp);
1634                         }
1635 #elif defined(OPENSSL_SYS_BEOS_R5)
1636                         /* Under BeOS-R5 the situation is similar to DOS */
1637                         i=0;
1638                         stdin_set = 0;
1639                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
1640                         if(!write_tty) {
1641                                 if(read_tty) {
1642                                         tv.tv_sec = 1;
1643                                         tv.tv_usec = 0;
1644                                         i=select(width,(void *)&readfds,(void *)&writefds,
1645                                                  NULL,&tv);
1646                                         if (read(fileno(stdin), sbuf, 0) >= 0)
1647                                                 stdin_set = 1;
1648                                         if (!i && (stdin_set != 1 || !read_tty))
1649                                                 continue;
1650                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1651                                          NULL,timeoutp);
1652                         }
1653                         (void)fcntl(fileno(stdin), F_SETFL, 0);
1654 #else
1655                         i=select(width,(void *)&readfds,(void *)&writefds,
1656                                  NULL,timeoutp);
1657 #endif
1658                         if ( i < 0)
1659                                 {
1660                                 BIO_printf(bio_err,"bad select %d\n",
1661                                 get_last_socket_error());
1662                                 goto shut;
1663                                 /* goto end; */
1664                                 }
1665                         }
1666
1667                 if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
1668                         {
1669                         BIO_printf(bio_err,"TIMEOUT occured\n");
1670                         }
1671
1672                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
1673                         {
1674                         k=SSL_write(con,&(cbuf[cbuf_off]),
1675                                 (unsigned int)cbuf_len);
1676                         switch (SSL_get_error(con,k))
1677                                 {
1678                         case SSL_ERROR_NONE:
1679                                 cbuf_off+=k;
1680                                 cbuf_len-=k;
1681                                 if (k <= 0) goto end;
1682                                 /* we have done a  write(con,NULL,0); */
1683                                 if (cbuf_len <= 0)
1684                                         {
1685                                         read_tty=1;
1686                                         write_ssl=0;
1687                                         }
1688                                 else /* if (cbuf_len > 0) */
1689                                         {
1690                                         read_tty=0;
1691                                         write_ssl=1;
1692                                         }
1693                                 break;
1694                         case SSL_ERROR_WANT_WRITE:
1695                                 BIO_printf(bio_c_out,"write W BLOCK\n");
1696                                 write_ssl=1;
1697                                 read_tty=0;
1698                                 break;
1699                         case SSL_ERROR_WANT_READ:
1700                                 BIO_printf(bio_c_out,"write R BLOCK\n");
1701                                 write_tty=0;
1702                                 read_ssl=1;
1703                                 write_ssl=0;
1704                                 break;
1705                         case SSL_ERROR_WANT_X509_LOOKUP:
1706                                 BIO_printf(bio_c_out,"write X BLOCK\n");
1707                                 break;
1708                         case SSL_ERROR_ZERO_RETURN:
1709                                 if (cbuf_len != 0)
1710                                         {
1711                                         BIO_printf(bio_c_out,"shutdown\n");
1712                                         ret = 0;
1713                                         goto shut;
1714                                         }
1715                                 else
1716                                         {
1717                                         read_tty=1;
1718                                         write_ssl=0;
1719                                         break;
1720                                         }
1721
1722                         case SSL_ERROR_SYSCALL:
1723                                 if ((k != 0) || (cbuf_len != 0))
1724                                         {
1725                                         BIO_printf(bio_err,"write:errno=%d\n",
1726                                                 get_last_socket_error());
1727                                         goto shut;
1728                                         }
1729                                 else
1730                                         {
1731                                         read_tty=1;
1732                                         write_ssl=0;
1733                                         }
1734                                 break;
1735                         case SSL_ERROR_SSL:
1736                                 ERR_print_errors(bio_err);
1737                                 goto shut;
1738                                 }
1739                         }
1740 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
1741                 /* Assume Windows/DOS/BeOS can always write */
1742                 else if (!ssl_pending && write_tty)
1743 #else
1744                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
1745 #endif
1746                         {
1747 #ifdef CHARSET_EBCDIC
1748                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
1749 #endif
1750                         i=raw_write_stdout(&(sbuf[sbuf_off]),sbuf_len);
1751
1752                         if (i <= 0)
1753                                 {
1754                                 BIO_printf(bio_c_out,"DONE\n");
1755                                 ret = 0;
1756                                 goto shut;
1757                                 /* goto end; */
1758                                 }
1759
1760                         sbuf_len-=i;;
1761                         sbuf_off+=i;
1762                         if (sbuf_len <= 0)
1763                                 {
1764                                 read_ssl=1;
1765                                 write_tty=0;
1766                                 }
1767                         }
1768                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
1769                         {
1770 #ifdef RENEG
1771 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
1772 #endif
1773 #if 1
1774                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
1775 #else
1776 /* Demo for pending and peek :-) */
1777                         k=SSL_read(con,sbuf,16);
1778 { char zbuf[10240];
1779 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
1780 }
1781 #endif
1782
1783                         switch (SSL_get_error(con,k))
1784                                 {
1785                         case SSL_ERROR_NONE:
1786                                 if (k <= 0)
1787                                         goto end;
1788                                 sbuf_off=0;
1789                                 sbuf_len=k;
1790
1791                                 read_ssl=0;
1792                                 write_tty=1;
1793                                 break;
1794                         case SSL_ERROR_WANT_WRITE:
1795                                 BIO_printf(bio_c_out,"read W BLOCK\n");
1796                                 write_ssl=1;
1797                                 read_tty=0;
1798                                 break;
1799                         case SSL_ERROR_WANT_READ:
1800                                 BIO_printf(bio_c_out,"read R BLOCK\n");
1801                                 write_tty=0;
1802                                 read_ssl=1;
1803                                 if ((read_tty == 0) && (write_ssl == 0))
1804                                         write_ssl=1;
1805                                 break;
1806                         case SSL_ERROR_WANT_X509_LOOKUP:
1807                                 BIO_printf(bio_c_out,"read X BLOCK\n");
1808                                 break;
1809                         case SSL_ERROR_SYSCALL:
1810                                 ret=get_last_socket_error();
1811                                 BIO_printf(bio_err,"read:errno=%d\n",ret);
1812                                 goto shut;
1813                         case SSL_ERROR_ZERO_RETURN:
1814                                 BIO_printf(bio_c_out,"closed\n");
1815                                 ret=0;
1816                                 goto shut;
1817                         case SSL_ERROR_SSL:
1818                                 ERR_print_errors(bio_err);
1819                                 goto shut;
1820                                 /* break; */
1821                                 }
1822                         }
1823
1824 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1825 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1826                 else if (_kbhit())
1827 #else
1828                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
1829 #endif
1830 #elif defined (OPENSSL_SYS_NETWARE)
1831                 else if (_kbhit())
1832 #elif defined(OPENSSL_SYS_BEOS_R5)
1833                 else if (stdin_set)
1834 #else
1835                 else if (FD_ISSET(fileno(stdin),&readfds))
1836 #endif
1837                         {
1838                         if (crlf)
1839                                 {
1840                                 int j, lf_num;
1841
1842                                 i=raw_read_stdin(cbuf,BUFSIZZ/2);
1843                                 lf_num = 0;
1844                                 /* both loops are skipped when i <= 0 */
1845                                 for (j = 0; j < i; j++)
1846                                         if (cbuf[j] == '\n')
1847                                                 lf_num++;
1848                                 for (j = i-1; j >= 0; j--)
1849                                         {
1850                                         cbuf[j+lf_num] = cbuf[j];
1851                                         if (cbuf[j] == '\n')
1852                                                 {
1853                                                 lf_num--;
1854                                                 i++;
1855                                                 cbuf[j+lf_num] = '\r';
1856                                                 }
1857                                         }
1858                                 assert(lf_num == 0);
1859                                 }
1860                         else
1861                                 i=raw_read_stdin(cbuf,BUFSIZZ);
1862
1863                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
1864                                 {
1865                                 BIO_printf(bio_err,"DONE\n");
1866                                 ret=0;
1867                                 goto shut;
1868                                 }
1869
1870                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
1871                                 {
1872                                 BIO_printf(bio_err,"RENEGOTIATING\n");
1873                                 SSL_renegotiate(con);
1874                                 cbuf_len=0;
1875                                 }
1876 #ifndef OPENSSL_NO_HEARTBEATS
1877                         else if ((!c_ign_eof) && (cbuf[0] == 'B'))
1878                                 {
1879                                 BIO_printf(bio_err,"HEARTBEATING\n");
1880                                 SSL_heartbeat(con);
1881                                 cbuf_len=0;
1882                                 }
1883 #endif
1884                         else
1885                                 {
1886                                 cbuf_len=i;
1887                                 cbuf_off=0;
1888 #ifdef CHARSET_EBCDIC
1889                                 ebcdic2ascii(cbuf, cbuf, i);
1890 #endif
1891                                 }
1892
1893                         write_ssl=1;
1894                         read_tty=0;
1895                         }
1896                 }
1897
1898         ret=0;
1899 shut:
1900         if (in_init)
1901                 print_stuff(bio_c_out,con,full_log);
1902         SSL_shutdown(con);
1903         SHUTDOWN(SSL_get_fd(con));
1904 end:
1905         if (con != NULL)
1906                 {
1907                 if (prexit != 0)
1908                         print_stuff(bio_c_out,con,1);
1909                 SSL_free(con);
1910                 }
1911 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
1912         if (next_proto.data)
1913                 OPENSSL_free(next_proto.data);
1914 #endif
1915         if (ctx != NULL) SSL_CTX_free(ctx);
1916         if (cert)
1917                 X509_free(cert);
1918         if (key)
1919                 EVP_PKEY_free(key);
1920         if (pass)
1921                 OPENSSL_free(pass);
1922         if (vpm)
1923                 X509_VERIFY_PARAM_free(vpm);
1924         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
1925         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
1926         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
1927         if (bio_c_out != NULL)
1928                 {
1929                 BIO_free(bio_c_out);
1930                 bio_c_out=NULL;
1931                 }
1932         apps_shutdown();
1933         OPENSSL_EXIT(ret);
1934         }
1935
1936
1937 static void print_stuff(BIO *bio, SSL *s, int full)
1938         {
1939         X509 *peer=NULL;
1940         char *p;
1941         static const char *space="                ";
1942         char buf[BUFSIZ];
1943         STACK_OF(X509) *sk;
1944         STACK_OF(X509_NAME) *sk2;
1945         const SSL_CIPHER *c;
1946         X509_NAME *xn;
1947         int j,i;
1948 #ifndef OPENSSL_NO_COMP
1949         const COMP_METHOD *comp, *expansion;
1950 #endif
1951         unsigned char *exportedkeymat;
1952
1953         if (full)
1954                 {
1955                 int got_a_chain = 0;
1956
1957                 sk=SSL_get_peer_cert_chain(s);
1958                 if (sk != NULL)
1959                         {
1960                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
1961
1962                         BIO_printf(bio,"---\nCertificate chain\n");
1963                         for (i=0; i<sk_X509_num(sk); i++)
1964                                 {
1965                                 X509_NAME_oneline(X509_get_subject_name(
1966                                         sk_X509_value(sk,i)),buf,sizeof buf);
1967                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
1968                                 X509_NAME_oneline(X509_get_issuer_name(
1969                                         sk_X509_value(sk,i)),buf,sizeof buf);
1970                                 BIO_printf(bio,"   i:%s\n",buf);
1971                                 if (c_showcerts)
1972                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
1973                                 }
1974                         }
1975
1976                 BIO_printf(bio,"---\n");
1977                 peer=SSL_get_peer_certificate(s);
1978                 if (peer != NULL)
1979                         {
1980                         BIO_printf(bio,"Server certificate\n");
1981                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
1982                                 PEM_write_bio_X509(bio,peer);
1983                         X509_NAME_oneline(X509_get_subject_name(peer),
1984                                 buf,sizeof buf);
1985                         BIO_printf(bio,"subject=%s\n",buf);
1986                         X509_NAME_oneline(X509_get_issuer_name(peer),
1987                                 buf,sizeof buf);
1988                         BIO_printf(bio,"issuer=%s\n",buf);
1989                         }
1990                 else
1991                         BIO_printf(bio,"no peer certificate available\n");
1992
1993                 sk2=SSL_get_client_CA_list(s);
1994                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
1995                         {
1996                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
1997                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
1998                                 {
1999                                 xn=sk_X509_NAME_value(sk2,i);
2000                                 X509_NAME_oneline(xn,buf,sizeof(buf));
2001                                 BIO_write(bio,buf,strlen(buf));
2002                                 BIO_write(bio,"\n",1);
2003                                 }
2004                         }
2005                 else
2006                         {
2007                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
2008                         }
2009                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
2010                 if (p != NULL)
2011                         {
2012                         /* This works only for SSL 2.  In later protocol
2013                          * versions, the client does not know what other
2014                          * ciphers (in addition to the one to be used
2015                          * in the current connection) the server supports. */
2016
2017                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
2018                         j=i=0;
2019                         while (*p)
2020                                 {
2021                                 if (*p == ':')
2022                                         {
2023                                         BIO_write(bio,space,15-j%25);
2024                                         i++;
2025                                         j=0;
2026                                         BIO_write(bio,((i%3)?" ":"\n"),1);
2027                                         }
2028                                 else
2029                                         {
2030                                         BIO_write(bio,p,1);
2031                                         j++;
2032                                         }
2033                                 p++;
2034                                 }
2035                         BIO_write(bio,"\n",1);
2036                         }
2037
2038                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
2039                         BIO_number_read(SSL_get_rbio(s)),
2040                         BIO_number_written(SSL_get_wbio(s)));
2041                 }
2042         BIO_printf(bio,(SSL_cache_hit(s)?"---\nReused, ":"---\nNew, "));
2043         c=SSL_get_current_cipher(s);
2044         BIO_printf(bio,"%s, Cipher is %s\n",
2045                 SSL_CIPHER_get_version(c),
2046                 SSL_CIPHER_get_name(c));
2047         if (peer != NULL) {
2048                 EVP_PKEY *pktmp;
2049                 pktmp = X509_get_pubkey(peer);
2050                 BIO_printf(bio,"Server public key is %d bit\n",
2051                                                          EVP_PKEY_bits(pktmp));
2052                 EVP_PKEY_free(pktmp);
2053         }
2054         BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
2055                         SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
2056 #ifndef OPENSSL_NO_COMP
2057         comp=SSL_get_current_compression(s);
2058         expansion=SSL_get_current_expansion(s);
2059         BIO_printf(bio,"Compression: %s\n",
2060                 comp ? SSL_COMP_get_name(comp) : "NONE");
2061         BIO_printf(bio,"Expansion: %s\n",
2062                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
2063 #endif
2064
2065 #ifdef SSL_DEBUG
2066         {
2067         /* Print out local port of connection: useful for debugging */
2068         int sock;
2069         struct sockaddr_in ladd;
2070         socklen_t ladd_size = sizeof(ladd);
2071         sock = SSL_get_fd(s);
2072         getsockname(sock, (struct sockaddr *)&ladd, &ladd_size);
2073         BIO_printf(bio_c_out, "LOCAL PORT is %u\n", ntohs(ladd.sin_port));
2074         }
2075 #endif
2076
2077 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2078         if (next_proto.status != -1) {
2079                 const unsigned char *proto;
2080                 unsigned int proto_len;
2081                 SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
2082                 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
2083                 BIO_write(bio, proto, proto_len);
2084                 BIO_write(bio, "\n", 1);
2085         }
2086 #endif
2087
2088 #ifndef OPENSSL_NO_SRTP
2089         {
2090         SRTP_PROTECTION_PROFILE *srtp_profile=SSL_get_selected_srtp_profile(s);
2091
2092         if(srtp_profile)
2093                 BIO_printf(bio,"SRTP Extension negotiated, profile=%s\n",
2094                            srtp_profile->name);
2095         }
2096 #endif
2097
2098         SSL_SESSION_print(bio,SSL_get_session(s));
2099         if (keymatexportlabel != NULL)
2100                 {
2101                 BIO_printf(bio, "Keying material exporter:\n");
2102                 BIO_printf(bio, "    Label: '%s'\n", keymatexportlabel);
2103                 BIO_printf(bio, "    Length: %i bytes\n", keymatexportlen);
2104                 exportedkeymat = OPENSSL_malloc(keymatexportlen);
2105                 if (exportedkeymat != NULL)
2106                         {
2107                         if (!SSL_export_keying_material(s, exportedkeymat,
2108                                                         keymatexportlen,
2109                                                         keymatexportlabel,
2110                                                         strlen(keymatexportlabel),
2111                                                         NULL, 0, 0))
2112                                 {
2113                                 BIO_printf(bio, "    Error\n");
2114                                 }
2115                         else
2116                                 {
2117                                 BIO_printf(bio, "    Keying material: ");
2118                                 for (i=0; i<keymatexportlen; i++)
2119                                         BIO_printf(bio, "%02X",
2120                                                    exportedkeymat[i]);
2121                                 BIO_printf(bio, "\n");
2122                                 }
2123                         OPENSSL_free(exportedkeymat);
2124                         }
2125                 }
2126         BIO_printf(bio,"---\n");
2127         if (peer != NULL)
2128                 X509_free(peer);
2129         /* flush, or debugging output gets mixed with http response */
2130         (void)BIO_flush(bio);
2131         }
2132
2133 #ifndef OPENSSL_NO_TLSEXT
2134
2135 static int ocsp_resp_cb(SSL *s, void *arg)
2136         {
2137         const unsigned char *p;
2138         int len;
2139         OCSP_RESPONSE *rsp;
2140         len = SSL_get_tlsext_status_ocsp_resp(s, &p);
2141         BIO_puts(arg, "OCSP response: ");
2142         if (!p)
2143                 {
2144                 BIO_puts(arg, "no response sent\n");
2145                 return 1;
2146                 }
2147         rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
2148         if (!rsp)
2149                 {
2150                 BIO_puts(arg, "response parse error\n");
2151                 BIO_dump_indent(arg, (char *)p, len, 4);
2152                 return 0;
2153                 }
2154         BIO_puts(arg, "\n======================================\n");
2155         OCSP_RESPONSE_print(arg, rsp, 0);
2156         BIO_puts(arg, "======================================\n");
2157         OCSP_RESPONSE_free(rsp);
2158         return 1;
2159         }
2160
2161 #endif