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 /* no default cert. */
 189 /*#define TEST_CERT "client.pem" */
 190
 191 #undef BUFSIZZ
 192 #define BUFSIZZ 1024*8
 193
 194 extern int verify_depth;
 195 extern int verify_error;
 196 extern int verify_return_error;
 197
 198 #ifdef FIONBIO
 199 static int c_nbio=0;
 200 #endif
 201 static int c_Pause=0;
 202 static int c_debug=0;
 203 #ifndef OPENSSL_NO_TLSEXT
 204 static int c_tlsextdebug=0;
 205 static int c_status_req=0;
 206 #endif
 207 static int c_msg=0;
 208 static int c_showcerts=0;
 209
 210 static char *keymatexportlabel=NULL;
 211 static int keymatexportlen=20;
 212
 213 static void sc_usage(void);
 214 static void print_stuff(BIO *berr,SSL *con,int full);
 215 #ifndef OPENSSL_NO_TLSEXT
 216 static int ocsp_resp_cb(SSL *s, void *arg);
 217 #endif
 218 static BIO *bio_c_out=NULL;
 219 static int c_quiet=0;
 220 static int c_ign_eof=0;
 221
 222 #ifndef OPENSSL_NO_PSK
 223 /* Default PSK identity and key */
 224 static char *psk_identity="Client_identity";
 225 /*char *psk_key=NULL;  by default PSK is not used */
 226
 227 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
 228         unsigned int max_identity_len, unsigned char *psk,
 229         unsigned int max_psk_len)
 230         {
 231         unsigned int psk_len = 0;
 232         int ret;
 233         BIGNUM *bn=NULL;
 234
 235         if (c_debug)
 236                 BIO_printf(bio_c_out, "psk_client_cb\n");
 237         if (!hint)
 238                 {
 239                 /* no ServerKeyExchange message*/
 240                 if (c_debug)
 241                         BIO_printf(bio_c_out,"NULL received PSK identity hint, continuing anyway\n");
 242                 }
 243         else if (c_debug)
 244                 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
 245
 246         /* lookup PSK identity and PSK key based on the given identity hint here */
 247         ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity);
 248         if (ret < 0 || (unsigned int)ret > max_identity_len)
 249                 goto out_err;
 250         if (c_debug)
 251                 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity, ret);
 252         ret=BN_hex2bn(&bn, psk_key);
 253         if (!ret)
 254                 {
 255                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
 256                 if (bn)
 257                         BN_free(bn);
 258                 return 0;
 259                 }
 260
 261         if ((unsigned int)BN_num_bytes(bn) > max_psk_len)
 262                 {
 263                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
 264                         max_psk_len, BN_num_bytes(bn));
 265                 BN_free(bn);
 266                 return 0;
 267                 }
 268
 269         psk_len=BN_bn2bin(bn, psk);
 270         BN_free(bn);
 271         if (psk_len == 0)
 272                 goto out_err;
 273
 274         if (c_debug)
 275                 BIO_printf(bio_c_out, "created PSK len=%d\n", psk_len);
 276
 277         return psk_len;
 278  out_err:
 279         if (c_debug)
 280                 BIO_printf(bio_err, "Error in PSK client callback\n");
 281         return 0;
 282         }
 283 #endif
 284
 285 static void sc_usage(void)
 286         {
 287         BIO_printf(bio_err,"usage: s_client args\n");
 288         BIO_printf(bio_err,"\n");
 289         BIO_printf(bio_err," -host host     - use -connect instead\n");
 290         BIO_printf(bio_err," -port port     - use -connect instead\n");
 291         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
 292
 293         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 294         BIO_printf(bio_err," -verify_return_error - return verification errors\n");
 295         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 296         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 297         BIO_printf(bio_err," -key arg      - Private key file to use, in cert file if\n");
 298         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 299         BIO_printf(bio_err," -keyform arg  - key format (PEM or DER) PEM default\n");
 300         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 301         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 302         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 303         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 304         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 305         BIO_printf(bio_err," -prexit       - print session information even on connection failure\n");
 306         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
 307         BIO_printf(bio_err," -debug        - extra output\n");
 308 #ifdef WATT32
 309         BIO_printf(bio_err," -wdebug       - WATT-32 tcp debugging\n");
 310 #endif
 311         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 312         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
 313         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
 314 #ifdef FIONBIO
 315         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 316 #endif
 317         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 318         BIO_printf(bio_err," -quiet        - no s_client output\n");
 319         BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
 320         BIO_printf(bio_err," -no_ign_eof   - don't ignore input eof\n");
 321 #ifndef OPENSSL_NO_PSK
 322         BIO_printf(bio_err," -psk_identity arg - PSK identity\n");
 323         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
 324 # ifndef OPENSSL_NO_JPAKE
 325         BIO_printf(bio_err," -jpake arg    - JPAKE secret to use\n");
 326 # endif
 327 #endif
 328 #ifndef OPENSSL_NO_SRP
 329         BIO_printf(bio_err," -srpuser user     - SRP authentification for 'user'\n");
 330         BIO_printf(bio_err," -srppass arg      - password for 'user'\n");
 331         BIO_printf(bio_err," -srp_lateuser     - SRP username into second ClientHello message\n");
 332         BIO_printf(bio_err," -srp_moregroups   - Tolerate other than the known g N values.\n");
 333         BIO_printf(bio_err," -srp_strength int - minimal length in bits for N (default %d).\n",SRP_MINIMAL_N);
 334 #endif
 335         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 336 #ifndef OPENSSL_NO_SSL3_METHOD
 337         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 338 #endif
 339         BIO_printf(bio_err," -tls1_2       - just use TLSv1.2\n");
 340         BIO_printf(bio_err," -tls1_1       - just use TLSv1.1\n");
 341         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 342         BIO_printf(bio_err," -dtls1        - just use DTLSv1\n");
 343         BIO_printf(bio_err," -fallback_scsv - send TLS_FALLBACK_SCSV\n");
 344         BIO_printf(bio_err," -mtu          - set the link layer MTU\n");
 345         BIO_printf(bio_err," -no_tls1_2/-no_tls1_1/-no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 346         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 347         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
 348         BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
 349         BIO_printf(bio_err,"                 command to see what is available\n");
 350         BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
 351         BIO_printf(bio_err,"                 for those protocols that support it, where\n");
 352         BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
 353         BIO_printf(bio_err,"                 only \"smtp\", \"pop3\", \"imap\", \"ftp\" and \"xmpp\"\n");
 354         BIO_printf(bio_err,"                 are supported.\n");
 355 #ifndef OPENSSL_NO_ENGINE
 356         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 357 #endif
 358         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 359         BIO_printf(bio_err," -sess_out arg - file to write SSL session to\n");
 360         BIO_printf(bio_err," -sess_in arg  - file to read SSL session from\n");
 361 #ifndef OPENSSL_NO_TLSEXT
 362         BIO_printf(bio_err," -servername host  - Set TLS extension servername in ClientHello\n");
 363         BIO_printf(bio_err," -tlsextdebug      - hex dump of all TLS extensions received\n");
 364         BIO_printf(bio_err," -status           - request certificate status from server\n");
 365         BIO_printf(bio_err," -no_ticket        - disable use of RFC4507bis session tickets\n");
 366 # ifndef OPENSSL_NO_NEXTPROTONEG
 367         BIO_printf(bio_err," -nextprotoneg arg - enable NPN extension, considering named protocols supported (comma-separated list)\n");
 368 # endif
 369 #endif
 370         BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
 371 #ifndef OPENSSL_NO_SRTP
 372         BIO_printf(bio_err," -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
 373 #endif
 374         BIO_printf(bio_err," -keymatexport label   - Export keying material using label\n");
 375         BIO_printf(bio_err," -keymatexportlen len  - Export len bytes of keying material (default 20)\n");
 376         }
 377
 378 #ifndef OPENSSL_NO_TLSEXT
 379
 380 /* This is a context that we pass to callbacks */
 381 typedef struct tlsextctx_st {
 382    BIO * biodebug;
 383    int ack;
 384 } tlsextctx;
 385
 386
 387 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 388         {
 389         tlsextctx * p = (tlsextctx *) arg;
 390         const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 391         if (SSL_get_servername_type(s) != -1)
 392                 p->ack = !SSL_session_reused(s) && hn != NULL;
 393         else
 394                 BIO_printf(bio_err,"Can't use SSL_get_servername\n");
 395
 396         return SSL_TLSEXT_ERR_OK;
 397         }
 398
 399 #ifndef OPENSSL_NO_SRP
 400
 401 /* This is a context that we pass to all callbacks */
 402 typedef struct srp_arg_st
 403         {
 404         char *srppassin;
 405         char *srplogin;
 406         int msg;   /* copy from c_msg */
 407         int debug; /* copy from c_debug */
 408         int amp;   /* allow more groups */
 409         int strength /* minimal size for N */ ;
 410         } SRP_ARG;
 411
 412 #define SRP_NUMBER_ITERATIONS_FOR_PRIME 64
 413
 414 static int srp_Verify_N_and_g(BIGNUM *N, BIGNUM *g)
 415         {
 416         BN_CTX *bn_ctx = BN_CTX_new();
 417         BIGNUM *p = BN_new();
 418         BIGNUM *r = BN_new();
 419         int ret =
 420                 g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) &&
 421                 BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) &&
 422                 p != NULL && BN_rshift1(p, N) &&
 423
 424                 /* p = (N-1)/2 */
 425                 BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) &&
 426                 r != NULL &&
 427
 428                 /* verify g^((N-1)/2) == -1 (mod N) */
 429                 BN_mod_exp(r, g, p, N, bn_ctx) &&
 430                 BN_add_word(r, 1) &&
 431                 BN_cmp(r, N) == 0;
 432
 433         if(r)
 434                 BN_free(r);
 435         if(p)
 436                 BN_free(p);
 437         if(bn_ctx)
 438                 BN_CTX_free(bn_ctx);
 439         return ret;
 440         }
 441
 442 /*-
 443  * This callback is used here for two purposes:
 444  * - extended debugging
 445  * - making some primality tests for unknown groups
 446  * The callback is only called for a non default group.
 447  *
 448  * An application does not need the call back at all if
 449  * only the stanard groups are used.  In real life situations,
 450  * client and server already share well known groups,
 451  * thus there is no need to verify them.
 452  * Furthermore, in case that a server actually proposes a group that
 453  * is not one of those defined in RFC 5054, it is more appropriate
 454  * to add the group to a static list and then compare since
 455  * primality tests are rather cpu consuming.
 456  */
 457
 458 static int MS_CALLBACK ssl_srp_verify_param_cb(SSL *s, void *arg)
 459         {
 460         SRP_ARG *srp_arg = (SRP_ARG *)arg;
 461         BIGNUM *N = NULL, *g = NULL;
 462         if (!(N = SSL_get_srp_N(s)) || !(g = SSL_get_srp_g(s)))
 463                 return 0;
 464         if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1)
 465                 {
 466                 BIO_printf(bio_err, "SRP parameters:\n");
 467                 BIO_printf(bio_err,"\tN="); BN_print(bio_err,N);
 468                 BIO_printf(bio_err,"\n\tg="); BN_print(bio_err,g);
 469                 BIO_printf(bio_err,"\n");
 470                 }
 471
 472         if (SRP_check_known_gN_param(g,N))
 473                 return 1;
 474
 475         if (srp_arg->amp == 1)
 476                 {
 477                 if (srp_arg->debug)
 478                         BIO_printf(bio_err, "SRP param N and g are not known params, going to check deeper.\n");
 479
 480 /* The srp_moregroups is a real debugging feature.
 481    Implementors should rather add the value to the known ones.
 482    The minimal size has already been tested.
 483 */
 484                 if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N,g))
 485                         return 1;
 486                 }
 487         BIO_printf(bio_err, "SRP param N and g rejected.\n");
 488         return 0;
 489         }
 490
 491 #define PWD_STRLEN 1024
 492
 493 static char * MS_CALLBACK ssl_give_srp_client_pwd_cb(SSL *s, void *arg)
 494         {
 495         SRP_ARG *srp_arg = (SRP_ARG *)arg;
 496         char *pass = (char *)OPENSSL_malloc(PWD_STRLEN+1);
 497         PW_CB_DATA cb_tmp;
 498         int l;
 499
 500         cb_tmp.password = (char *)srp_arg->srppassin;
 501         cb_tmp.prompt_info = "SRP user";
 502         if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp))<0)
 503                 {
 504                 BIO_printf (bio_err, "Can't read Password\n");
 505                 OPENSSL_free(pass);
 506                 return NULL;
 507                 }
 508         *(pass+l)= '\0';
 509
 510         return pass;
 511         }
 512
 513 #endif
 514 #ifndef OPENSSL_NO_SRTP
 515         char *srtp_profiles = NULL;
 516 #endif
 517
 518 # ifndef OPENSSL_NO_NEXTPROTONEG
 519 /* This the context that we pass to next_proto_cb */
 520 typedef struct tlsextnextprotoctx_st {
 521         unsigned char *data;
 522         unsigned short len;
 523         int status;
 524 } tlsextnextprotoctx;
 525
 526 static tlsextnextprotoctx next_proto;
 527
 528 static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg)
 529         {
 530         tlsextnextprotoctx *ctx = arg;
 531
 532         if (!c_quiet)
 533                 {
 534                 /* We can assume that |in| is syntactically valid. */
 535                 unsigned i;
 536                 BIO_printf(bio_c_out, "Protocols advertised by server: ");
 537                 for (i = 0; i < inlen; )
 538                         {
 539                         if (i)
 540                                 BIO_write(bio_c_out, ", ", 2);
 541                         BIO_write(bio_c_out, &in[i + 1], in[i]);
 542                         i += in[i] + 1;
 543                         }
 544                 BIO_write(bio_c_out, "\n", 1);
 545                 }
 546
 547         ctx->status = SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
 548         return SSL_TLSEXT_ERR_OK;
 549         }
 550 # endif  /* ndef OPENSSL_NO_NEXTPROTONEG */
 551 #endif
 552
 553 enum
 554 {
 555         PROTO_OFF       = 0,
 556         PROTO_SMTP,
 557         PROTO_POP3,
 558         PROTO_IMAP,
 559         PROTO_FTP,
 560         PROTO_XMPP
 561 };
 562
 563 int MAIN(int, char **);
 564
 565 int MAIN(int argc, char **argv)
 566         {
 567         unsigned int off=0, clr=0;
 568         SSL *con=NULL;
 569 #ifndef OPENSSL_NO_KRB5
 570         KSSL_CTX *kctx;
 571 #endif
 572         int s,k,width,state=0;
 573         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
 574         int cbuf_len,cbuf_off;
 575         int sbuf_len,sbuf_off;
 576         fd_set readfds,writefds;
 577         short port=PORT;
 578         int full_log=1;
 579         char *host=SSL_HOST_NAME;
 580         char *cert_file=NULL,*key_file=NULL;
 581         int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
 582         char *passarg = NULL, *pass = NULL;
 583         X509 *cert = NULL;
 584         EVP_PKEY *key = NULL;
 585         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 586         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 587         int crlf=0;
 588         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 589         SSL_CTX *ctx=NULL;
 590         int ret=1,in_init=1,i,nbio_test=0;
 591         int starttls_proto = PROTO_OFF;
 592         int prexit = 0;
 593         X509_VERIFY_PARAM *vpm = NULL;
 594         int badarg = 0;
 595         const SSL_METHOD *meth=NULL;
 596         int socket_type=SOCK_STREAM;
 597         BIO *sbio;
 598         char *inrand=NULL;
 599         int mbuf_len=0;
 600         struct timeval timeout, *timeoutp;
 601 #ifndef OPENSSL_NO_ENGINE
 602         char *engine_id=NULL;
 603         char *ssl_client_engine_id=NULL;
 604         ENGINE *ssl_client_engine=NULL;
 605 #endif
 606         ENGINE *e=NULL;
 607 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
 608         struct timeval tv;
 609 #if defined(OPENSSL_SYS_BEOS_R5)
 610         int stdin_set = 0;
 611 #endif
 612 #endif
 613 #ifndef OPENSSL_NO_TLSEXT
 614         char *servername = NULL;
 615         tlsextctx tlsextcbp =
 616         {NULL,0};
 617 # ifndef OPENSSL_NO_NEXTPROTONEG
 618         const char *next_proto_neg_in = NULL;
 619 # endif
 620 #endif
 621         char *sess_in = NULL;
 622         char *sess_out = NULL;
 623         struct sockaddr peer;
 624         int peerlen = sizeof(peer);
 625         int fallback_scsv = 0;
 626         int enable_timeouts = 0 ;
 627         long socket_mtu = 0;
 628 #ifndef OPENSSL_NO_JPAKE
 629         char *jpake_secret = NULL;
 630 #endif
 631 #ifndef OPENSSL_NO_SRP
 632         char * srppass = NULL;
 633         int srp_lateuser = 0;
 634         SRP_ARG srp_arg = {NULL,NULL,0,0,0,1024};
 635 #endif
 636
 637         meth=SSLv23_client_method();
 638
 639         apps_startup();
 640         c_Pause=0;
 641         c_quiet=0;
 642         c_ign_eof=0;
 643         c_debug=0;
 644         c_msg=0;
 645         c_showcerts=0;
 646
 647         if (bio_err == NULL)
 648                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 649
 650         if (!load_config(bio_err, NULL))
 651                 goto end;
 652
 653         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 654                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 655                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
 656                 {
 657                 BIO_printf(bio_err,"out of memory\n");
 658                 goto end;
 659                 }
 660
 661         verify_depth=0;
 662         verify_error=X509_V_OK;
 663 #ifdef FIONBIO
 664         c_nbio=0;
 665 #endif
 666
 667         argc--;
 668         argv++;
 669         while (argc >= 1)
 670                 {
 671                 if      (strcmp(*argv,"-host") == 0)
 672                         {
 673                         if (--argc < 1) goto bad;
 674                         host= *(++argv);
 675                         }
 676                 else if (strcmp(*argv,"-port") == 0)
 677                         {
 678                         if (--argc < 1) goto bad;
 679                         port=atoi(*(++argv));
 680                         if (port == 0) goto bad;
 681                         }
 682                 else if (strcmp(*argv,"-connect") == 0)
 683                         {
 684                         if (--argc < 1) goto bad;
 685                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 686                                 goto bad;
 687                         }
 688                 else if (strcmp(*argv,"-verify") == 0)
 689                         {
 690                         verify=SSL_VERIFY_PEER;
 691                         if (--argc < 1) goto bad;
 692                         verify_depth=atoi(*(++argv));
 693                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 694                         }
 695                 else if (strcmp(*argv,"-cert") == 0)
 696                         {
 697                         if (--argc < 1) goto bad;
 698                         cert_file= *(++argv);
 699                         }
 700                 else if (strcmp(*argv,"-sess_out") == 0)
 701                         {
 702                         if (--argc < 1) goto bad;
 703                         sess_out = *(++argv);
 704                         }
 705                 else if (strcmp(*argv,"-sess_in") == 0)
 706                         {
 707                         if (--argc < 1) goto bad;
 708                         sess_in = *(++argv);
 709                         }
 710                 else if (strcmp(*argv,"-certform") == 0)
 711                         {
 712                         if (--argc < 1) goto bad;
 713                         cert_format = str2fmt(*(++argv));
 714                         }
 715                 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm))
 716                         {
 717                         if (badarg)
 718                                 goto bad;
 719                         continue;
 720                         }
 721                 else if (strcmp(*argv,"-verify_return_error") == 0)
 722                         verify_return_error = 1;
 723                 else if (strcmp(*argv,"-prexit") == 0)
 724                         prexit=1;
 725                 else if (strcmp(*argv,"-crlf") == 0)
 726                         crlf=1;
 727                 else if (strcmp(*argv,"-quiet") == 0)
 728                         {
 729                         c_quiet=1;
 730                         c_ign_eof=1;
 731                         }
 732                 else if (strcmp(*argv,"-ign_eof") == 0)
 733                         c_ign_eof=1;
 734                 else if (strcmp(*argv,"-no_ign_eof") == 0)
 735                         c_ign_eof=0;
 736                 else if (strcmp(*argv,"-pause") == 0)
 737                         c_Pause=1;
 738                 else if (strcmp(*argv,"-debug") == 0)
 739                         c_debug=1;
 740 #ifndef OPENSSL_NO_TLSEXT
 741                 else if (strcmp(*argv,"-tlsextdebug") == 0)
 742                         c_tlsextdebug=1;
 743                 else if (strcmp(*argv,"-status") == 0)
 744                         c_status_req=1;
 745 #endif
 746 #ifdef WATT32
 747                 else if (strcmp(*argv,"-wdebug") == 0)
 748                         dbug_init();
 749 #endif
 750                 else if (strcmp(*argv,"-msg") == 0)
 751                         c_msg=1;
 752                 else if (strcmp(*argv,"-showcerts") == 0)
 753                         c_showcerts=1;
 754                 else if (strcmp(*argv,"-nbio_test") == 0)
 755                         nbio_test=1;
 756                 else if (strcmp(*argv,"-state") == 0)
 757                         state=1;
 758 #ifndef OPENSSL_NO_PSK
 759                 else if (strcmp(*argv,"-psk_identity") == 0)
 760                         {
 761                         if (--argc < 1) goto bad;
 762                         psk_identity=*(++argv);
 763                         }
 764                 else if (strcmp(*argv,"-psk") == 0)
 765                         {
 766                         size_t j;
 767
 768                         if (--argc < 1) goto bad;
 769                         psk_key=*(++argv);
 770                         for (j = 0; j < strlen(psk_key); j++)
 771                                 {
 772                                 if (isxdigit((unsigned char)psk_key[j]))
 773                                         continue;
 774                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
 775                                 goto bad;
 776                                 }
 777                         }
 778 #endif
 779 #ifndef OPENSSL_NO_SRP
 780                 else if (strcmp(*argv,"-srpuser") == 0)
 781                         {
 782                         if (--argc < 1) goto bad;
 783                         srp_arg.srplogin= *(++argv);
 784                         meth=TLSv1_client_method();
 785                         }
 786                 else if (strcmp(*argv,"-srppass") == 0)
 787                         {
 788                         if (--argc < 1) goto bad;
 789                         srppass= *(++argv);
 790                         meth=TLSv1_client_method();
 791                         }
 792                 else if (strcmp(*argv,"-srp_strength") == 0)
 793                         {
 794                         if (--argc < 1) goto bad;
 795                         srp_arg.strength=atoi(*(++argv));
 796                         BIO_printf(bio_err,"SRP minimal length for N is %d\n",srp_arg.strength);
 797                         meth=TLSv1_client_method();
 798                         }
 799                 else if (strcmp(*argv,"-srp_lateuser") == 0)
 800                         {
 801                         srp_lateuser= 1;
 802                         meth=TLSv1_client_method();
 803                         }
 804                 else if (strcmp(*argv,"-srp_moregroups") == 0)
 805                         {
 806                         srp_arg.amp=1;
 807                         meth=TLSv1_client_method();
 808                         }
 809 #endif
 810 #ifndef OPENSSL_NO_SSL2
 811                 else if (strcmp(*argv,"-ssl2") == 0)
 812                         meth=SSLv2_client_method();
 813 #endif
 814 #ifndef OPENSSL_NO_SSL3_METHOD
 815                 else if (strcmp(*argv,"-ssl3") == 0)
 816                         meth=SSLv3_client_method();
 817 #endif
 818 #ifndef OPENSSL_NO_TLS1
 819                 else if (strcmp(*argv,"-tls1_2") == 0)
 820                         meth=TLSv1_2_client_method();
 821                 else if (strcmp(*argv,"-tls1_1") == 0)
 822                         meth=TLSv1_1_client_method();
 823                 else if (strcmp(*argv,"-tls1") == 0)
 824                         meth=TLSv1_client_method();
 825 #endif
 826 #ifndef OPENSSL_NO_DTLS1
 827                 else if (strcmp(*argv,"-dtls1") == 0)
 828                         {
 829                         meth=DTLSv1_client_method();
 830                         socket_type=SOCK_DGRAM;
 831                         }
 832                 else if (strcmp(*argv,"-fallback_scsv") == 0)
 833                         {
 834                         fallback_scsv = 1;
 835                         }
 836                 else if (strcmp(*argv,"-timeout") == 0)
 837                         enable_timeouts=1;
 838                 else if (strcmp(*argv,"-mtu") == 0)
 839                         {
 840                         if (--argc < 1) goto bad;
 841                         socket_mtu = atol(*(++argv));
 842                         }
 843 #endif
 844                 else if (strcmp(*argv,"-bugs") == 0)
 845                         bugs=1;
 846                 else if (strcmp(*argv,"-keyform") == 0)
 847                         {
 848                         if (--argc < 1) goto bad;
 849                         key_format = str2fmt(*(++argv));
 850                         }
 851                 else if (strcmp(*argv,"-pass") == 0)
 852                         {
 853                         if (--argc < 1) goto bad;
 854                         passarg = *(++argv);
 855                         }
 856                 else if (strcmp(*argv,"-key") == 0)
 857                         {
 858                         if (--argc < 1) goto bad;
 859                         key_file= *(++argv);
 860                         }
 861                 else if (strcmp(*argv,"-reconnect") == 0)
 862                         {
 863                         reconnect=5;
 864                         }
 865                 else if (strcmp(*argv,"-CApath") == 0)
 866                         {
 867                         if (--argc < 1) goto bad;
 868                         CApath= *(++argv);
 869                         }
 870                 else if (strcmp(*argv,"-CAfile") == 0)
 871                         {
 872                         if (--argc < 1) goto bad;
 873                         CAfile= *(++argv);
 874                         }
 875                 else if (strcmp(*argv,"-no_tls1_2") == 0)
 876                         off|=SSL_OP_NO_TLSv1_2;
 877                 else if (strcmp(*argv,"-no_tls1_1") == 0)
 878                         off|=SSL_OP_NO_TLSv1_1;
 879                 else if (strcmp(*argv,"-no_tls1") == 0)
 880                         off|=SSL_OP_NO_TLSv1;
 881                 else if (strcmp(*argv,"-no_ssl3") == 0)
 882                         off|=SSL_OP_NO_SSLv3;
 883                 else if (strcmp(*argv,"-no_ssl2") == 0)
 884                         off|=SSL_OP_NO_SSLv2;
 885                 else if (strcmp(*argv,"-no_comp") == 0)
 886                         { off|=SSL_OP_NO_COMPRESSION; }
 887 #ifndef OPENSSL_NO_TLSEXT
 888                 else if (strcmp(*argv,"-no_ticket") == 0)
 889                         { off|=SSL_OP_NO_TICKET; }
 890 # ifndef OPENSSL_NO_NEXTPROTONEG
 891                 else if (strcmp(*argv,"-nextprotoneg") == 0)
 892                         {
 893                         if (--argc < 1) goto bad;
 894                         next_proto_neg_in = *(++argv);
 895                         }
 896 # endif
 897 #endif
 898                 else if (strcmp(*argv,"-serverpref") == 0)
 899                         off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
 900                 else if (strcmp(*argv,"-legacy_renegotiation") == 0)
 901                         off|=SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION;
 902                 else if (strcmp(*argv,"-legacy_server_connect") == 0)
 903                         { off|=SSL_OP_LEGACY_SERVER_CONNECT; }
 904                 else if (strcmp(*argv,"-no_legacy_server_connect") == 0)
 905                         { clr|=SSL_OP_LEGACY_SERVER_CONNECT; }
 906                 else if (strcmp(*argv,"-cipher") == 0)
 907                         {
 908                         if (--argc < 1) goto bad;
 909                         cipher= *(++argv);
 910                         }
 911 #ifdef FIONBIO
 912                 else if (strcmp(*argv,"-nbio") == 0)
 913                         { c_nbio=1; }
 914 #endif
 915                 else if (strcmp(*argv,"-starttls") == 0)
 916                         {
 917                         if (--argc < 1) goto bad;
 918                         ++argv;
 919                         if (strcmp(*argv,"smtp") == 0)
 920                                 starttls_proto = PROTO_SMTP;
 921                         else if (strcmp(*argv,"pop3") == 0)
 922                                 starttls_proto = PROTO_POP3;
 923                         else if (strcmp(*argv,"imap") == 0)
 924                                 starttls_proto = PROTO_IMAP;
 925                         else if (strcmp(*argv,"ftp") == 0)
 926                                 starttls_proto = PROTO_FTP;
 927                         else if (strcmp(*argv, "xmpp") == 0)
 928                                 starttls_proto = PROTO_XMPP;
 929                         else
 930                                 goto bad;
 931                         }
 932 #ifndef OPENSSL_NO_ENGINE
 933                 else if (strcmp(*argv,"-engine") == 0)
 934                         {
 935                         if (--argc < 1) goto bad;
 936                         engine_id = *(++argv);
 937                         }
 938                 else if (strcmp(*argv,"-ssl_client_engine") == 0)
 939                         {
 940                         if (--argc < 1) goto bad;
 941                         ssl_client_engine_id = *(++argv);
 942                         }
 943 #endif
 944                 else if (strcmp(*argv,"-rand") == 0)
 945                         {
 946                         if (--argc < 1) goto bad;
 947                         inrand= *(++argv);
 948                         }
 949 #ifndef OPENSSL_NO_TLSEXT
 950                 else if (strcmp(*argv,"-servername") == 0)
 951                         {
 952                         if (--argc < 1) goto bad;
 953                         servername= *(++argv);
 954                         /* meth=TLSv1_client_method(); */
 955                         }
 956 #endif
 957 #ifndef OPENSSL_NO_JPAKE
 958                 else if (strcmp(*argv,"-jpake") == 0)
 959                         {
 960                         if (--argc < 1) goto bad;
 961                         jpake_secret = *++argv;
 962                         }
 963 #endif
 964 #ifndef OPENSSL_NO_SRTP
 965                 else if (strcmp(*argv,"-use_srtp") == 0)
 966                         {
 967                         if (--argc < 1) goto bad;
 968                         srtp_profiles = *(++argv);
 969                         }
 970 #endif
 971                 else if (strcmp(*argv,"-keymatexport") == 0)
 972                         {
 973                         if (--argc < 1) goto bad;
 974                         keymatexportlabel= *(++argv);
 975                         }
 976                 else if (strcmp(*argv,"-keymatexportlen") == 0)
 977                         {
 978                         if (--argc < 1) goto bad;
 979                         keymatexportlen=atoi(*(++argv));
 980                         if (keymatexportlen == 0) goto bad;
 981                         }
 982                 else
 983                         {
 984                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 985                         badop=1;
 986                         break;
 987                         }
 988                 argc--;
 989                 argv++;
 990                 }
 991         if (badop)
 992                 {
 993 bad:
 994                 sc_usage();
 995                 goto end;
 996                 }
 997
 998 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
 999         if (jpake_secret)
1000                 {
1001                 if (psk_key)
1002                         {
1003                         BIO_printf(bio_err,
1004                                    "Can't use JPAKE and PSK together\n");
1005                         goto end;
1006                         }
1007                 psk_identity = "JPAKE";
1008                 if (cipher)
1009                         {
1010                         BIO_printf(bio_err, "JPAKE sets cipher to PSK\n");
1011                         goto end;
1012                         }
1013                 cipher = "PSK";
1014                 }
1015 #endif
1016
1017         OpenSSL_add_ssl_algorithms();
1018         SSL_load_error_strings();
1019
1020 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
1021         next_proto.status = -1;
1022         if (next_proto_neg_in)
1023                 {
1024                 next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in);
1025                 if (next_proto.data == NULL)
1026                         {
1027                         BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
1028                         goto end;
1029                         }
1030                 }
1031         else
1032                 next_proto.data = NULL;
1033 #endif
1034
1035 #ifndef OPENSSL_NO_ENGINE
1036         e = setup_engine(bio_err, engine_id, 1);
1037         if (ssl_client_engine_id)
1038                 {
1039                 ssl_client_engine = ENGINE_by_id(ssl_client_engine_id);
1040                 if (!ssl_client_engine)
1041                         {
1042                         BIO_printf(bio_err,
1043                                         "Error getting client auth engine\n");
1044                         goto end;
1045                         }
1046                 }
1047
1048 #endif
1049         if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
1050                 {
1051                 BIO_printf(bio_err, "Error getting password\n");
1052                 goto end;
1053                 }
1054
1055         if (key_file == NULL)
1056                 key_file = cert_file;
1057
1058
1059         if (key_file)
1060
1061                 {
1062
1063                 key = load_key(bio_err, key_file, key_format, 0, pass, e,
1064                                "client certificate private key file");
1065                 if (!key)
1066                         {
1067                         ERR_print_errors(bio_err);
1068                         goto end;
1069                         }
1070
1071                 }
1072
1073         if (cert_file)
1074
1075                 {
1076                 cert = load_cert(bio_err,cert_file,cert_format,
1077                                 NULL, e, "client certificate file");
1078
1079                 if (!cert)
1080                         {
1081                         ERR_print_errors(bio_err);
1082                         goto end;
1083                         }
1084                 }
1085
1086         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1087                 && !RAND_status())
1088                 {
1089                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
1090                 }
1091         if (inrand != NULL)
1092                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
1093                         app_RAND_load_files(inrand));
1094
1095         if (bio_c_out == NULL)
1096                 {
1097                 if (c_quiet && !c_debug && !c_msg)
1098                         {
1099                         bio_c_out=BIO_new(BIO_s_null());
1100                         }
1101                 else
1102                         {
1103                         if (bio_c_out == NULL)
1104                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
1105                         }
1106                 }
1107
1108 #ifndef OPENSSL_NO_SRP
1109         if(!app_passwd(bio_err, srppass, NULL, &srp_arg.srppassin, NULL))
1110                 {
1111                 BIO_printf(bio_err, "Error getting password\n");
1112                 goto end;
1113                 }
1114 #endif
1115
1116         ctx=SSL_CTX_new(meth);
1117         if (ctx == NULL)
1118                 {
1119                 ERR_print_errors(bio_err);
1120                 goto end;
1121                 }
1122
1123         if (vpm)
1124                 SSL_CTX_set1_param(ctx, vpm);
1125
1126 #ifndef OPENSSL_NO_ENGINE
1127         if (ssl_client_engine)
1128                 {
1129                 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine))
1130                         {
1131                         BIO_puts(bio_err, "Error setting client auth engine\n");
1132                         ERR_print_errors(bio_err);
1133                         ENGINE_free(ssl_client_engine);
1134                         goto end;
1135                         }
1136                 ENGINE_free(ssl_client_engine);
1137                 }
1138 #endif
1139
1140 #ifndef OPENSSL_NO_PSK
1141 #ifdef OPENSSL_NO_JPAKE
1142         if (psk_key != NULL)
1143 #else
1144         if (psk_key != NULL || jpake_secret)
1145 #endif
1146                 {
1147                 if (c_debug)
1148                         BIO_printf(bio_c_out, "PSK key given or JPAKE in use, setting client callback\n");
1149                 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1150                 }
1151 #endif
1152 #ifndef OPENSSL_NO_SRTP
1153         if (srtp_profiles != NULL)
1154                 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
1155 #endif
1156         if (bugs)
1157                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
1158         else
1159                 SSL_CTX_set_options(ctx,off);
1160
1161         if (clr)
1162                 SSL_CTX_clear_options(ctx, clr);
1163         /* DTLS: partial reads end up discarding unread UDP bytes :-(
1164          * Setting read ahead solves this problem.
1165          */
1166         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1167
1168 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
1169         if (next_proto.data)
1170                 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
1171 #endif
1172
1173         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1174         if (cipher != NULL)
1175                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
1176                 BIO_printf(bio_err,"error setting cipher list\n");
1177                 ERR_print_errors(bio_err);
1178                 goto end;
1179         }
1180 #if 0
1181         else
1182                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
1183 #endif
1184
1185         SSL_CTX_set_verify(ctx,verify,verify_callback);
1186         if (!set_cert_key_stuff(ctx,cert,key))
1187                 goto end;
1188
1189         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1190                 (!SSL_CTX_set_default_verify_paths(ctx)))
1191                 {
1192                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
1193                 ERR_print_errors(bio_err);
1194                 /* goto end; */
1195                 }
1196
1197 #ifndef OPENSSL_NO_TLSEXT
1198         if (servername != NULL)
1199                 {
1200                 tlsextcbp.biodebug = bio_err;
1201                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1202                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1203                 }
1204 #ifndef OPENSSL_NO_SRP
1205         if (srp_arg.srplogin)
1206                 {
1207                 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin))
1208                         {
1209                         BIO_printf(bio_err,"Unable to set SRP username\n");
1210                         goto end;
1211                         }
1212                 srp_arg.msg = c_msg;
1213                 srp_arg.debug = c_debug ;
1214                 SSL_CTX_set_srp_cb_arg(ctx,&srp_arg);
1215                 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb);
1216                 SSL_CTX_set_srp_strength(ctx, srp_arg.strength);
1217                 if (c_msg || c_debug || srp_arg.amp == 0)
1218                         SSL_CTX_set_srp_verify_param_callback(ctx, ssl_srp_verify_param_cb);
1219                 }
1220
1221 #endif
1222 #endif
1223
1224         con=SSL_new(ctx);
1225         if (sess_in)
1226                 {
1227                 SSL_SESSION *sess;
1228                 BIO *stmp = BIO_new_file(sess_in, "r");
1229                 if (!stmp)
1230                         {
1231                         BIO_printf(bio_err, "Can't open session file %s\n",
1232                                                 sess_in);
1233                         ERR_print_errors(bio_err);
1234                         goto end;
1235                         }
1236                 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1237                 BIO_free(stmp);
1238                 if (!sess)
1239                         {
1240                         BIO_printf(bio_err, "Can't open session file %s\n",
1241                                                 sess_in);
1242                         ERR_print_errors(bio_err);
1243                         goto end;
1244                         }
1245                 SSL_set_session(con, sess);
1246                 SSL_SESSION_free(sess);
1247                 }
1248
1249         if (fallback_scsv)
1250                 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV);
1251
1252 #ifndef OPENSSL_NO_TLSEXT
1253         if (servername != NULL)
1254                 {
1255                 if (!SSL_set_tlsext_host_name(con,servername))
1256                         {
1257                         BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
1258                         ERR_print_errors(bio_err);
1259                         goto end;
1260                         }
1261                 }
1262 #endif
1263 #ifndef OPENSSL_NO_KRB5
1264         if (con  &&  (kctx = kssl_ctx_new()) != NULL)
1265                 {
1266                 SSL_set0_kssl_ctx(con, kctx);
1267                 kssl_ctx_setstring(kctx, KSSL_SERVER, host);
1268                 }
1269 #endif  /* OPENSSL_NO_KRB5  */
1270 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
1271 #if 0
1272 #ifdef TLSEXT_TYPE_opaque_prf_input
1273         SSL_set_tlsext_opaque_prf_input(con, "Test client", 11);
1274 #endif
1275 #endif
1276
1277 re_start:
1278
1279         if (init_client(&s,host,port,socket_type) == 0)
1280                 {
1281                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
1282                 SHUTDOWN(s);
1283                 goto end;
1284                 }
1285         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
1286
1287 #ifdef FIONBIO
1288         if (c_nbio)
1289                 {
1290                 unsigned long l=1;
1291                 BIO_printf(bio_c_out,"turning on non blocking io\n");
1292                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
1293                         {
1294                         ERR_print_errors(bio_err);
1295                         goto end;
1296                         }
1297                 }
1298 #endif
1299         if (c_Pause & 0x01) SSL_set_debug(con, 1);
1300
1301         if ( SSL_version(con) == DTLS1_VERSION)
1302                 {
1303
1304                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
1305                 if (getsockname(s, &peer, (void *)&peerlen) < 0)
1306                         {
1307                         BIO_printf(bio_err, "getsockname:errno=%d\n",
1308                                 get_last_socket_error());
1309                         SHUTDOWN(s);
1310                         goto end;
1311                         }
1312
1313                 (void)BIO_ctrl_set_connected(sbio, 1, &peer);
1314
1315                 if (enable_timeouts)
1316                         {
1317                         timeout.tv_sec = 0;
1318                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
1319                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
1320
1321                         timeout.tv_sec = 0;
1322                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
1323                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
1324                         }
1325
1326                 if (socket_mtu)
1327                         {
1328                         if(socket_mtu < DTLS_get_link_min_mtu(con))
1329                                 {
1330                                 BIO_printf(bio_err,"MTU too small. Must be at least %ld\n",
1331                                         DTLS_get_link_min_mtu(con));
1332                                 BIO_free(sbio);
1333                                 goto shut;
1334                                 }
1335                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
1336                         if(!DTLS_set_link_mtu(con, socket_mtu))
1337                                 {
1338                                 BIO_printf(bio_err, "Failed to set MTU\n");
1339                                 BIO_free(sbio);
1340                                 goto shut;
1341                                 }
1342                         }
1343                 else
1344                         /* want to do MTU discovery */
1345                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
1346                 }
1347         else
1348                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
1349
1350         if (nbio_test)
1351                 {
1352                 BIO *test;
1353
1354                 test=BIO_new(BIO_f_nbio_test());
1355                 sbio=BIO_push(test,sbio);
1356                 }
1357
1358         if (c_debug)
1359                 {
1360                 SSL_set_debug(con, 1);
1361                 BIO_set_callback(sbio,bio_dump_callback);
1362                 BIO_set_callback_arg(sbio,(char *)bio_c_out);
1363                 }
1364         if (c_msg)
1365                 {
1366                 SSL_set_msg_callback(con, msg_cb);
1367                 SSL_set_msg_callback_arg(con, bio_c_out);
1368                 }
1369 #ifndef OPENSSL_NO_TLSEXT
1370         if (c_tlsextdebug)
1371                 {
1372                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1373                 SSL_set_tlsext_debug_arg(con, bio_c_out);
1374                 }
1375         if (c_status_req)
1376                 {
1377                 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
1378                 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
1379                 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
1380 #if 0
1381 {
1382 STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null();
1383 OCSP_RESPID *id = OCSP_RESPID_new();
1384 id->value.byKey = ASN1_OCTET_STRING_new();
1385 id->type = V_OCSP_RESPID_KEY;
1386 ASN1_STRING_set(id->value.byKey, "Hello World", -1);
1387 sk_OCSP_RESPID_push(ids, id);
1388 SSL_set_tlsext_status_ids(con, ids);
1389 }
1390 #endif
1391                 }
1392 #endif
1393 #ifndef OPENSSL_NO_JPAKE
1394         if (jpake_secret)
1395                 jpake_client_auth(bio_c_out, sbio, jpake_secret);
1396 #endif
1397
1398         SSL_set_bio(con,sbio,sbio);
1399         SSL_set_connect_state(con);
1400
1401         /* ok, lets connect */
1402         width=SSL_get_fd(con)+1;
1403
1404         read_tty=1;
1405         write_tty=0;
1406         tty_on=0;
1407         read_ssl=1;
1408         write_ssl=1;
1409
1410         cbuf_len=0;
1411         cbuf_off=0;
1412         sbuf_len=0;
1413         sbuf_off=0;
1414
1415         /* This is an ugly hack that does a lot of assumptions */
1416         /* We do have to handle multi-line responses which may come
1417            in a single packet or not. We therefore have to use
1418            BIO_gets() which does need a buffering BIO. So during
1419            the initial chitchat we do push a buffering BIO into the
1420            chain that is removed again later on to not disturb the
1421            rest of the s_client operation. */
1422         if (starttls_proto == PROTO_SMTP)
1423                 {
1424                 int foundit=0;
1425                 BIO *fbio = BIO_new(BIO_f_buffer());
1426                 BIO_push(fbio, sbio);
1427                 /* wait for multi-line response to end from SMTP */
1428                 do
1429                         {
1430                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1431                         }
1432                 while (mbuf_len>3 && mbuf[3]=='-');
1433                 /* STARTTLS command requires EHLO... */
1434                 BIO_printf(fbio,"EHLO openssl.client.net\r\n");
1435                 (void)BIO_flush(fbio);
1436                 /* wait for multi-line response to end EHLO SMTP response */
1437                 do
1438                         {
1439                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1440                         if (strstr(mbuf,"STARTTLS"))
1441                                 foundit=1;
1442                         }
1443                 while (mbuf_len>3 && mbuf[3]=='-');
1444                 (void)BIO_flush(fbio);
1445                 BIO_pop(fbio);
1446                 BIO_free(fbio);
1447                 if (!foundit)
1448                         BIO_printf(bio_err,
1449                                    "didn't found starttls in server response,"
1450                                    " try anyway...\n");
1451                 BIO_printf(sbio,"STARTTLS\r\n");
1452                 BIO_read(sbio,sbuf,BUFSIZZ);
1453                 }
1454         else if (starttls_proto == PROTO_POP3)
1455                 {
1456                 BIO_read(sbio,mbuf,BUFSIZZ);
1457                 BIO_printf(sbio,"STLS\r\n");
1458                 BIO_read(sbio,sbuf,BUFSIZZ);
1459                 }
1460         else if (starttls_proto == PROTO_IMAP)
1461                 {
1462                 int foundit=0;
1463                 BIO *fbio = BIO_new(BIO_f_buffer());
1464                 BIO_push(fbio, sbio);
1465                 BIO_gets(fbio,mbuf,BUFSIZZ);
1466                 /* STARTTLS command requires CAPABILITY... */
1467                 BIO_printf(fbio,". CAPABILITY\r\n");
1468                 (void)BIO_flush(fbio);
1469                 /* wait for multi-line CAPABILITY response */
1470                 do
1471                         {
1472                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1473                         if (strstr(mbuf,"STARTTLS"))
1474                                 foundit=1;
1475                         }
1476                 while (mbuf_len>3 && mbuf[0]!='.');
1477                 (void)BIO_flush(fbio);
1478                 BIO_pop(fbio);
1479                 BIO_free(fbio);
1480                 if (!foundit)
1481                         BIO_printf(bio_err,
1482                                    "didn't found STARTTLS in server response,"
1483                                    " try anyway...\n");
1484                 BIO_printf(sbio,". STARTTLS\r\n");
1485                 BIO_read(sbio,sbuf,BUFSIZZ);
1486                 }
1487         else if (starttls_proto == PROTO_FTP)
1488                 {
1489                 BIO *fbio = BIO_new(BIO_f_buffer());
1490                 BIO_push(fbio, sbio);
1491                 /* wait for multi-line response to end from FTP */
1492                 do
1493                         {
1494                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1495                         }
1496                 while (mbuf_len>3 && mbuf[3]=='-');
1497                 (void)BIO_flush(fbio);
1498                 BIO_pop(fbio);
1499                 BIO_free(fbio);
1500                 BIO_printf(sbio,"AUTH TLS\r\n");
1501                 BIO_read(sbio,sbuf,BUFSIZZ);
1502                 }
1503         if (starttls_proto == PROTO_XMPP)
1504                 {
1505                 int seen = 0;
1506                 BIO_printf(sbio,"<stream:stream "
1507                     "xmlns:stream='http://etherx.jabber.org/streams' "
1508                     "xmlns='jabber:client' to='%s' version='1.0'>", host);
1509                 seen = BIO_read(sbio,mbuf,BUFSIZZ);
1510                 mbuf[seen] = 0;
1511                 while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'"))
1512                         {
1513                         if (strstr(mbuf, "/stream:features>"))
1514                                 goto shut;
1515                         seen = BIO_read(sbio,mbuf,BUFSIZZ);
1516                         mbuf[seen] = 0;
1517                         }
1518                 BIO_printf(sbio, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
1519                 seen = BIO_read(sbio,sbuf,BUFSIZZ);
1520                 sbuf[seen] = 0;
1521                 if (!strstr(sbuf, "<proceed"))
1522                         goto shut;
1523                 mbuf[0] = 0;
1524                 }
1525
1526         for (;;)
1527                 {
1528                 FD_ZERO(&readfds);
1529                 FD_ZERO(&writefds);
1530
1531                 if ((SSL_version(con) == DTLS1_VERSION) &&
1532                         DTLSv1_get_timeout(con, &timeout))
1533                         timeoutp = &timeout;
1534                 else
1535                         timeoutp = NULL;
1536
1537                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
1538                         {
1539                         in_init=1;
1540                         tty_on=0;
1541                         }
1542                 else
1543                         {
1544                         tty_on=1;
1545                         if (in_init)
1546                                 {
1547                                 in_init=0;
1548 #if 0 /* This test doesn't really work as intended (needs to be fixed) */
1549 #ifndef OPENSSL_NO_TLSEXT
1550                                 if (servername != NULL && !SSL_session_reused(con))
1551                                         {
1552                                         BIO_printf(bio_c_out,"Server did %sacknowledge servername extension.\n",tlsextcbp.ack?"":"not ");
1553                                         }
1554 #endif
1555 #endif
1556                                 if (sess_out)
1557                                         {
1558                                         BIO *stmp = BIO_new_file(sess_out, "w");
1559                                         if (stmp)
1560                                                 {
1561                                                 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
1562                                                 BIO_free(stmp);
1563                                                 }
1564                                         else
1565                                                 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
1566                                         }
1567                                 print_stuff(bio_c_out,con,full_log);
1568                                 if (full_log > 0) full_log--;
1569
1570                                 if (starttls_proto)
1571                                         {
1572                                         BIO_printf(bio_err,"%s",mbuf);
1573                                         /* We don't need to know any more */
1574                                         starttls_proto = PROTO_OFF;
1575                                         }
1576
1577                                 if (reconnect)
1578                                         {
1579                                         reconnect--;
1580                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
1581                                         SSL_shutdown(con);
1582                                         SSL_set_connect_state(con);
1583                                         SHUTDOWN(SSL_get_fd(con));
1584                                         goto re_start;
1585                                         }
1586                                 }
1587                         }
1588
1589                 ssl_pending = read_ssl && SSL_pending(con);
1590
1591                 if (!ssl_pending)
1592                         {
1593 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined (OPENSSL_SYS_BEOS_R5)
1594                         if (tty_on)
1595                                 {
1596                                 if (read_tty)  openssl_fdset(fileno(stdin),&readfds);
1597                                 if (write_tty) openssl_fdset(fileno(stdout),&writefds);
1598                                 }
1599                         if (read_ssl)
1600                                 openssl_fdset(SSL_get_fd(con),&readfds);
1601                         if (write_ssl)
1602                                 openssl_fdset(SSL_get_fd(con),&writefds);
1603 #else
1604                         if(!tty_on || !write_tty) {
1605                                 if (read_ssl)
1606                                         openssl_fdset(SSL_get_fd(con),&readfds);
1607                                 if (write_ssl)
1608                                         openssl_fdset(SSL_get_fd(con),&writefds);
1609                         }
1610 #endif
1611 /*-                     printf("mode tty(%d %d%d) ssl(%d%d)\n",
1612                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1613
1614                         /* Note: under VMS with SOCKETSHR the second parameter
1615                          * is currently of type (int *) whereas under other
1616                          * systems it is (void *) if you don't have a cast it
1617                          * will choke the compiler: if you do have a cast then
1618                          * you can either go for (int *) or (void *).
1619                          */
1620 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1621                         /* Under Windows/DOS we make the assumption that we can
1622                          * always write to the tty: therefore if we need to
1623                          * write to the tty we just fall through. Otherwise
1624                          * we timeout the select every second and see if there
1625                          * are any keypresses. Note: this is a hack, in a proper
1626                          * Windows application we wouldn't do this.
1627                          */
1628                         i=0;
1629                         if(!write_tty) {
1630                                 if(read_tty) {
1631                                         tv.tv_sec = 1;
1632                                         tv.tv_usec = 0;
1633                                         i=select(width,(void *)&readfds,(void *)&writefds,
1634                                                  NULL,&tv);
1635 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1636                                         if(!i && (!_kbhit() || !read_tty) ) continue;
1637 #else
1638                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
1639 #endif
1640                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1641                                          NULL,timeoutp);
1642                         }
1643 #elif defined(OPENSSL_SYS_NETWARE)
1644                         if(!write_tty) {
1645                                 if(read_tty) {
1646                                         tv.tv_sec = 1;
1647                                         tv.tv_usec = 0;
1648                                         i=select(width,(void *)&readfds,(void *)&writefds,
1649                                                 NULL,&tv);
1650                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1651                                         NULL,timeoutp);
1652                         }
1653 #elif defined(OPENSSL_SYS_BEOS_R5)
1654                         /* Under BeOS-R5 the situation is similar to DOS */
1655                         i=0;
1656                         stdin_set = 0;
1657                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
1658                         if(!write_tty) {
1659                                 if(read_tty) {
1660                                         tv.tv_sec = 1;
1661                                         tv.tv_usec = 0;
1662                                         i=select(width,(void *)&readfds,(void *)&writefds,
1663                                                  NULL,&tv);
1664                                         if (read(fileno(stdin), sbuf, 0) >= 0)
1665                                                 stdin_set = 1;
1666                                         if (!i && (stdin_set != 1 || !read_tty))
1667                                                 continue;
1668                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1669                                          NULL,timeoutp);
1670                         }
1671                         (void)fcntl(fileno(stdin), F_SETFL, 0);
1672 #else
1673                         i=select(width,(void *)&readfds,(void *)&writefds,
1674                                  NULL,timeoutp);
1675 #endif
1676                         if ( i < 0)
1677                                 {
1678                                 BIO_printf(bio_err,"bad select %d\n",
1679                                 get_last_socket_error());
1680                                 goto shut;
1681                                 /* goto end; */
1682                                 }
1683                         }
1684
1685                 if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
1686                         {
1687                         BIO_printf(bio_err,"TIMEOUT occured\n");
1688                         }
1689
1690                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
1691                         {
1692                         k=SSL_write(con,&(cbuf[cbuf_off]),
1693                                 (unsigned int)cbuf_len);
1694                         switch (SSL_get_error(con,k))
1695                                 {
1696                         case SSL_ERROR_NONE:
1697                                 cbuf_off+=k;
1698                                 cbuf_len-=k;
1699                                 if (k <= 0) goto end;
1700                                 /* we have done a  write(con,NULL,0); */
1701                                 if (cbuf_len <= 0)
1702                                         {
1703                                         read_tty=1;
1704                                         write_ssl=0;
1705                                         }
1706                                 else /* if (cbuf_len > 0) */
1707                                         {
1708                                         read_tty=0;
1709                                         write_ssl=1;
1710                                         }
1711                                 break;
1712                         case SSL_ERROR_WANT_WRITE:
1713                                 BIO_printf(bio_c_out,"write W BLOCK\n");
1714                                 write_ssl=1;
1715                                 read_tty=0;
1716                                 break;
1717                         case SSL_ERROR_WANT_READ:
1718                                 BIO_printf(bio_c_out,"write R BLOCK\n");
1719                                 write_tty=0;
1720                                 read_ssl=1;
1721                                 write_ssl=0;
1722                                 break;
1723                         case SSL_ERROR_WANT_X509_LOOKUP:
1724                                 BIO_printf(bio_c_out,"write X BLOCK\n");
1725                                 break;
1726                         case SSL_ERROR_ZERO_RETURN:
1727                                 if (cbuf_len != 0)
1728                                         {
1729                                         BIO_printf(bio_c_out,"shutdown\n");
1730                                         ret = 0;
1731                                         goto shut;
1732                                         }
1733                                 else
1734                                         {
1735                                         read_tty=1;
1736                                         write_ssl=0;
1737                                         break;
1738                                         }
1739
1740                         case SSL_ERROR_SYSCALL:
1741                                 if ((k != 0) || (cbuf_len != 0))
1742                                         {
1743                                         BIO_printf(bio_err,"write:errno=%d\n",
1744                                                 get_last_socket_error());
1745                                         goto shut;
1746                                         }
1747                                 else
1748                                         {
1749                                         read_tty=1;
1750                                         write_ssl=0;
1751                                         }
1752                                 break;
1753                         case SSL_ERROR_SSL:
1754                                 ERR_print_errors(bio_err);
1755                                 goto shut;
1756                                 }
1757                         }
1758 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
1759                 /* Assume Windows/DOS/BeOS can always write */
1760                 else if (!ssl_pending && write_tty)
1761 #else
1762                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
1763 #endif
1764                         {
1765 #ifdef CHARSET_EBCDIC
1766                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
1767 #endif
1768                         i=raw_write_stdout(&(sbuf[sbuf_off]),sbuf_len);
1769
1770                         if (i <= 0)
1771                                 {
1772                                 BIO_printf(bio_c_out,"DONE\n");
1773                                 ret = 0;
1774                                 goto shut;
1775                                 /* goto end; */
1776                                 }
1777
1778                         sbuf_len-=i;;
1779                         sbuf_off+=i;
1780                         if (sbuf_len <= 0)
1781                                 {
1782                                 read_ssl=1;
1783                                 write_tty=0;
1784                                 }
1785                         }
1786                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
1787                         {
1788 #ifdef RENEG
1789 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
1790 #endif
1791 #if 1
1792                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
1793 #else
1794 /* Demo for pending and peek :-) */
1795                         k=SSL_read(con,sbuf,16);
1796 { char zbuf[10240];
1797 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
1798 }
1799 #endif
1800
1801                         switch (SSL_get_error(con,k))
1802                                 {
1803                         case SSL_ERROR_NONE:
1804                                 if (k <= 0)
1805                                         goto end;
1806                                 sbuf_off=0;
1807                                 sbuf_len=k;
1808
1809                                 read_ssl=0;
1810                                 write_tty=1;
1811                                 break;
1812                         case SSL_ERROR_WANT_WRITE:
1813                                 BIO_printf(bio_c_out,"read W BLOCK\n");
1814                                 write_ssl=1;
1815                                 read_tty=0;
1816                                 break;
1817                         case SSL_ERROR_WANT_READ:
1818                                 BIO_printf(bio_c_out,"read R BLOCK\n");
1819                                 write_tty=0;
1820                                 read_ssl=1;
1821                                 if ((read_tty == 0) && (write_ssl == 0))
1822                                         write_ssl=1;
1823                                 break;
1824                         case SSL_ERROR_WANT_X509_LOOKUP:
1825                                 BIO_printf(bio_c_out,"read X BLOCK\n");
1826                                 break;
1827                         case SSL_ERROR_SYSCALL:
1828                                 ret=get_last_socket_error();
1829                                 BIO_printf(bio_err,"read:errno=%d\n",ret);
1830                                 goto shut;
1831                         case SSL_ERROR_ZERO_RETURN:
1832                                 BIO_printf(bio_c_out,"closed\n");
1833                                 ret=0;
1834                                 goto shut;
1835                         case SSL_ERROR_SSL:
1836                                 ERR_print_errors(bio_err);
1837                                 goto shut;
1838                                 /* break; */
1839                                 }
1840                         }
1841
1842 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1843 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1844                 else if (_kbhit())
1845 #else
1846                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
1847 #endif
1848 #elif defined (OPENSSL_SYS_NETWARE)
1849                 else if (_kbhit())
1850 #elif defined(OPENSSL_SYS_BEOS_R5)
1851                 else if (stdin_set)
1852 #else
1853                 else if (FD_ISSET(fileno(stdin),&readfds))
1854 #endif
1855                         {
1856                         if (crlf)
1857                                 {
1858                                 int j, lf_num;
1859
1860                                 i=raw_read_stdin(cbuf,BUFSIZZ/2);
1861                                 lf_num = 0;
1862                                 /* both loops are skipped when i <= 0 */
1863                                 for (j = 0; j < i; j++)
1864                                         if (cbuf[j] == '\n')
1865                                                 lf_num++;
1866                                 for (j = i-1; j >= 0; j--)
1867                                         {
1868                                         cbuf[j+lf_num] = cbuf[j];
1869                                         if (cbuf[j] == '\n')
1870                                                 {
1871                                                 lf_num--;
1872                                                 i++;
1873                                                 cbuf[j+lf_num] = '\r';
1874                                                 }
1875                                         }
1876                                 assert(lf_num == 0);
1877                                 }
1878                         else
1879                                 i=raw_read_stdin(cbuf,BUFSIZZ);
1880
1881                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
1882                                 {
1883                                 BIO_printf(bio_err,"DONE\n");
1884                                 ret=0;
1885                                 goto shut;
1886                                 }
1887
1888                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
1889                                 {
1890                                 BIO_printf(bio_err,"RENEGOTIATING\n");
1891                                 SSL_renegotiate(con);
1892                                 cbuf_len=0;
1893                                 }
1894 #ifndef OPENSSL_NO_HEARTBEATS
1895                         else if ((!c_ign_eof) && (cbuf[0] == 'B'))
1896                                 {
1897                                 BIO_printf(bio_err,"HEARTBEATING\n");
1898                                 SSL_heartbeat(con);
1899                                 cbuf_len=0;
1900                                 }
1901 #endif
1902                         else
1903                                 {
1904                                 cbuf_len=i;
1905                                 cbuf_off=0;
1906 #ifdef CHARSET_EBCDIC
1907                                 ebcdic2ascii(cbuf, cbuf, i);
1908 #endif
1909                                 }
1910
1911                         write_ssl=1;
1912                         read_tty=0;
1913                         }
1914                 }
1915
1916         ret=0;
1917 shut:
1918         if (in_init)
1919                 print_stuff(bio_c_out,con,full_log);
1920         SSL_shutdown(con);
1921         SHUTDOWN(SSL_get_fd(con));
1922 end:
1923         if (con != NULL)
1924                 {
1925                 if (prexit != 0)
1926                         print_stuff(bio_c_out,con,1);
1927                 SSL_free(con);
1928                 }
1929 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
1930         if (next_proto.data)
1931                 OPENSSL_free(next_proto.data);
1932 #endif
1933         if (ctx != NULL) SSL_CTX_free(ctx);
1934         if (cert)
1935                 X509_free(cert);
1936         if (key)
1937                 EVP_PKEY_free(key);
1938         if (pass)
1939                 OPENSSL_free(pass);
1940         if (vpm)
1941                 X509_VERIFY_PARAM_free(vpm);
1942         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
1943         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
1944         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
1945         if (bio_c_out != NULL)
1946                 {
1947                 BIO_free(bio_c_out);
1948                 bio_c_out=NULL;
1949                 }
1950         apps_shutdown();
1951         OPENSSL_EXIT(ret);
1952         }
1953
1954
1955 static void print_stuff(BIO *bio, SSL *s, int full)
1956         {
1957         X509 *peer=NULL;
1958         char *p;
1959         static const char *space="                ";
1960         char buf[BUFSIZ];
1961         STACK_OF(X509) *sk;
1962         STACK_OF(X509_NAME) *sk2;
1963         const SSL_CIPHER *c;
1964         X509_NAME *xn;
1965         int j,i;
1966 #ifndef OPENSSL_NO_COMP
1967         const COMP_METHOD *comp, *expansion;
1968 #endif
1969         unsigned char *exportedkeymat;
1970
1971         if (full)
1972                 {
1973                 int got_a_chain = 0;
1974
1975                 sk=SSL_get_peer_cert_chain(s);
1976                 if (sk != NULL)
1977                         {
1978                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
1979
1980                         BIO_printf(bio,"---\nCertificate chain\n");
1981                         for (i=0; i<sk_X509_num(sk); i++)
1982                                 {
1983                                 X509_NAME_oneline(X509_get_subject_name(
1984                                         sk_X509_value(sk,i)),buf,sizeof buf);
1985                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
1986                                 X509_NAME_oneline(X509_get_issuer_name(
1987                                         sk_X509_value(sk,i)),buf,sizeof buf);
1988                                 BIO_printf(bio,"   i:%s\n",buf);
1989                                 if (c_showcerts)
1990                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
1991                                 }
1992                         }
1993
1994                 BIO_printf(bio,"---\n");
1995                 peer=SSL_get_peer_certificate(s);
1996                 if (peer != NULL)
1997                         {
1998                         BIO_printf(bio,"Server certificate\n");
1999                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
2000                                 PEM_write_bio_X509(bio,peer);
2001                         X509_NAME_oneline(X509_get_subject_name(peer),
2002                                 buf,sizeof buf);
2003                         BIO_printf(bio,"subject=%s\n",buf);
2004                         X509_NAME_oneline(X509_get_issuer_name(peer),
2005                                 buf,sizeof buf);
2006                         BIO_printf(bio,"issuer=%s\n",buf);
2007                         }
2008                 else
2009                         BIO_printf(bio,"no peer certificate available\n");
2010
2011                 sk2=SSL_get_client_CA_list(s);
2012                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
2013                         {
2014                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
2015                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
2016                                 {
2017                                 xn=sk_X509_NAME_value(sk2,i);
2018                                 X509_NAME_oneline(xn,buf,sizeof(buf));
2019                                 BIO_write(bio,buf,strlen(buf));
2020                                 BIO_write(bio,"\n",1);
2021                                 }
2022                         }
2023                 else
2024                         {
2025                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
2026                         }
2027                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
2028                 if (p != NULL)
2029                         {
2030                         /* This works only for SSL 2.  In later protocol
2031                          * versions, the client does not know what other
2032                          * ciphers (in addition to the one to be used
2033                          * in the current connection) the server supports. */
2034
2035                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
2036                         j=i=0;
2037                         while (*p)
2038                                 {
2039                                 if (*p == ':')
2040                                         {
2041                                         BIO_write(bio,space,15-j%25);
2042                                         i++;
2043                                         j=0;
2044                                         BIO_write(bio,((i%3)?" ":"\n"),1);
2045                                         }
2046                                 else
2047                                         {
2048                                         BIO_write(bio,p,1);
2049                                         j++;
2050                                         }
2051                                 p++;
2052                                 }
2053                         BIO_write(bio,"\n",1);
2054                         }
2055
2056                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
2057                         BIO_number_read(SSL_get_rbio(s)),
2058                         BIO_number_written(SSL_get_wbio(s)));
2059                 }
2060         BIO_printf(bio,(SSL_cache_hit(s)?"---\nReused, ":"---\nNew, "));
2061         c=SSL_get_current_cipher(s);
2062         BIO_printf(bio,"%s, Cipher is %s\n",
2063                 SSL_CIPHER_get_version(c),
2064                 SSL_CIPHER_get_name(c));
2065         if (peer != NULL) {
2066                 EVP_PKEY *pktmp;
2067                 pktmp = X509_get_pubkey(peer);
2068                 BIO_printf(bio,"Server public key is %d bit\n",
2069                                                          EVP_PKEY_bits(pktmp));
2070                 EVP_PKEY_free(pktmp);
2071         }
2072         BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
2073                         SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
2074 #ifndef OPENSSL_NO_COMP
2075         comp=SSL_get_current_compression(s);
2076         expansion=SSL_get_current_expansion(s);
2077         BIO_printf(bio,"Compression: %s\n",
2078                 comp ? SSL_COMP_get_name(comp) : "NONE");
2079         BIO_printf(bio,"Expansion: %s\n",
2080                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
2081 #endif
2082
2083 #ifdef SSL_DEBUG
2084         {
2085         /* Print out local port of connection: useful for debugging */
2086         int sock;
2087         struct sockaddr_in ladd;
2088         socklen_t ladd_size = sizeof(ladd);
2089         sock = SSL_get_fd(s);
2090         getsockname(sock, (struct sockaddr *)&ladd, &ladd_size);
2091         BIO_printf(bio_c_out, "LOCAL PORT is %u\n", ntohs(ladd.sin_port));
2092         }
2093 #endif
2094
2095 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2096         if (next_proto.status != -1) {
2097                 const unsigned char *proto;
2098                 unsigned int proto_len;
2099                 SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
2100                 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
2101                 BIO_write(bio, proto, proto_len);
2102                 BIO_write(bio, "\n", 1);
2103         }
2104 #endif
2105
2106 #ifndef OPENSSL_NO_SRTP
2107         {
2108         SRTP_PROTECTION_PROFILE *srtp_profile=SSL_get_selected_srtp_profile(s);
2109
2110         if(srtp_profile)
2111                 BIO_printf(bio,"SRTP Extension negotiated, profile=%s\n",
2112                            srtp_profile->name);
2113         }
2114 #endif
2115
2116         SSL_SESSION_print(bio,SSL_get_session(s));
2117         if (keymatexportlabel != NULL)
2118                 {
2119                 BIO_printf(bio, "Keying material exporter:\n");
2120                 BIO_printf(bio, "    Label: '%s'\n", keymatexportlabel);
2121                 BIO_printf(bio, "    Length: %i bytes\n", keymatexportlen);
2122                 exportedkeymat = OPENSSL_malloc(keymatexportlen);
2123                 if (exportedkeymat != NULL)
2124                         {
2125                         if (!SSL_export_keying_material(s, exportedkeymat,
2126                                                         keymatexportlen,
2127                                                         keymatexportlabel,
2128                                                         strlen(keymatexportlabel),
2129                                                         NULL, 0, 0))
2130                                 {
2131                                 BIO_printf(bio, "    Error\n");
2132                                 }
2133                         else
2134                                 {
2135                                 BIO_printf(bio, "    Keying material: ");
2136                                 for (i=0; i<keymatexportlen; i++)
2137                                         BIO_printf(bio, "%02X",
2138                                                    exportedkeymat[i]);
2139                                 BIO_printf(bio, "\n");
2140                                 }
2141                         OPENSSL_free(exportedkeymat);
2142                         }
2143                 }
2144         BIO_printf(bio,"---\n");
2145         if (peer != NULL)
2146                 X509_free(peer);
2147         /* flush, or debugging output gets mixed with http response */
2148         (void)BIO_flush(bio);
2149         }
2150
2151 #ifndef OPENSSL_NO_TLSEXT
2152
2153 static int ocsp_resp_cb(SSL *s, void *arg)
2154         {
2155         const unsigned char *p;
2156         int len;
2157         OCSP_RESPONSE *rsp;
2158         len = SSL_get_tlsext_status_ocsp_resp(s, &p);
2159         BIO_puts(arg, "OCSP response: ");
2160         if (!p)
2161                 {
2162                 BIO_puts(arg, "no response sent\n");
2163                 return 1;
2164                 }
2165         rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
2166         if (!rsp)
2167                 {
2168                 BIO_puts(arg, "response parse error\n");
2169                 BIO_dump_indent(arg, (char *)p, len, 4);
2170                 return 0;
2171                 }
2172         BIO_puts(arg, "\n======================================\n");
2173         OCSP_RESPONSE_print(arg, rsp, 0);
2174         BIO_puts(arg, "======================================\n");
2175         OCSP_RESPONSE_free(rsp);
2176         return 1;
2177         }
2178
2179 #endif