apps/s_client.c

   1 /* apps/s_client.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58 /* ====================================================================
  59  * Copyright (c) 1998-2006 The OpenSSL Project.  All rights reserved.
  60  *
  61  * Redistribution and use in source and binary forms, with or without
  62  * modification, are permitted provided that the following conditions
  63  * are met:
  64  *
  65  * 1. Redistributions of source code must retain the above copyright
  66  *    notice, this list of conditions and the following disclaimer.
  67  *
  68  * 2. Redistributions in binary form must reproduce the above copyright
  69  *    notice, this list of conditions and the following disclaimer in
  70  *    the documentation and/or other materials provided with the
  71  *    distribution.
  72  *
  73  * 3. All advertising materials mentioning features or use of this
  74  *    software must display the following acknowledgment:
  75  *    "This product includes software developed by the OpenSSL Project
  76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  77  *
  78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  79  *    endorse or promote products derived from this software without
  80  *    prior written permission. For written permission, please contact
  81  *    openssl-core@openssl.org.
  82  *
  83  * 5. Products derived from this software may not be called "OpenSSL"
  84  *    nor may "OpenSSL" appear in their names without prior written
  85  *    permission of the OpenSSL Project.
  86  *
  87  * 6. Redistributions of any form whatsoever must retain the following
  88  *    acknowledgment:
  89  *    "This product includes software developed by the OpenSSL Project
  90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  91  *
  92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 103  * OF THE POSSIBILITY OF SUCH DAMAGE.
 104  * ====================================================================
 105  *
 106  * This product includes cryptographic software written by Eric Young
 107  * (eay@cryptsoft.com).  This product includes software written by Tim
 108  * Hudson (tjh@cryptsoft.com).
 109  *
 110  */
 111 /* ====================================================================
 112  * Copyright 2005 Nokia. All rights reserved.
 113  *
 114  * The portions of the attached software ("Contribution") is developed by
 115  * Nokia Corporation and is licensed pursuant to the OpenSSL open source
 116  * license.
 117  *
 118  * The Contribution, originally written by Mika Kousa and Pasi Eronen of
 119  * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
 120  * support (see RFC 4279) to OpenSSL.
 121  *
 122  * No patent licenses or other rights except those expressly stated in
 123  * the OpenSSL open source license shall be deemed granted or received
 124  * expressly, by implication, estoppel, or otherwise.
 125  *
 126  * No assurances are provided by Nokia that the Contribution does not
 127  * infringe the patent or other intellectual property rights of any third
 128  * party or that the license provides you with all the necessary rights
 129  * to make use of the Contribution.
 130  *
 131  * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
 132  * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
 133  * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
 134  * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
 135  * OTHERWISE.
 136  */
 137
 138 #include <assert.h>
 139 #include <ctype.h>
 140 #include <stdio.h>
 141 #include <stdlib.h>
 142 #include <string.h>
 143 #include <openssl/e_os2.h>
 144 #ifdef OPENSSL_NO_STDIO
 145 #define APPS_WIN16
 146 #endif
 147
 148 /* With IPv6, it looks like Digital has mixed up the proper order of
 149    recursive header file inclusion, resulting in the compiler complaining
 150    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
 151    is needed to have fileno() declared correctly...  So let's define u_int */
 152 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
 153 #define __U_INT
 154 typedef unsigned int u_int;
 155 #endif
 156
 157 #define USE_SOCKETS
 158 #include "apps.h"
 159 #include <openssl/x509.h>
 160 #include <openssl/ssl.h>
 161 #include <openssl/err.h>
 162 #include <openssl/pem.h>
 163 #include <openssl/rand.h>
 164 #include <openssl/ocsp.h>
 165 #include <openssl/bn.h>
 166 #ifndef OPENSSL_NO_SRP
 167 #include <openssl/srp.h>
 168 #endif
 169 #include "s_apps.h"
 170 #include "timeouts.h"
 171
 172 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 173 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 174 #undef FIONBIO
 175 #endif
 176
 177 #if defined(OPENSSL_SYS_BEOS_R5)
 178 #include <fcntl.h>
 179 #endif
 180
 181 #undef PROG
 182 #define PROG    s_client_main
 183
 184 /*#define SSL_HOST_NAME "www.netscape.com" */
 185 /*#define SSL_HOST_NAME "193.118.187.102" */
 186 #define SSL_HOST_NAME   "localhost"
 187
 188 /*#define TEST_CERT "client.pem" */ /* no default cert. */
 189
 190 #undef BUFSIZZ
 191 #define BUFSIZZ 1024*8
 192
 193 extern int verify_depth;
 194 extern int verify_error;
 195 extern int verify_return_error;
 196
 197 #ifdef FIONBIO
 198 static int c_nbio=0;
 199 #endif
 200 static int c_Pause=0;
 201 static int c_debug=0;
 202 #ifndef OPENSSL_NO_TLSEXT
 203 static int c_tlsextdebug=0;
 204 static int c_status_req=0;
 205 static int c_proof_debug=0;
 206 #endif
 207 static int c_msg=0;
 208 static int c_showcerts=0;
 209
 210 static char *keymatexportlabel=NULL;
 211 static int keymatexportlen=20;
 212
 213 static void sc_usage(void);
 214 static void print_stuff(BIO *berr,SSL *con,int full);
 215 #ifndef OPENSSL_NO_TLSEXT
 216 static int ocsp_resp_cb(SSL *s, void *arg);
 217 static int audit_proof_cb(SSL *s, void *arg);
 218 #endif
 219 static BIO *bio_c_out=NULL;
 220 static BIO *bio_c_msg=NULL;
 221 static int c_quiet=0;
 222 static int c_ign_eof=0;
 223
 224 #ifndef OPENSSL_NO_PSK
 225 /* Default PSK identity and key */
 226 static char *psk_identity="Client_identity";
 227 /*char *psk_key=NULL;  by default PSK is not used */
 228
 229 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
 230         unsigned int max_identity_len, unsigned char *psk,
 231         unsigned int max_psk_len)
 232         {
 233         unsigned int psk_len = 0;
 234         int ret;
 235         BIGNUM *bn=NULL;
 236
 237         if (c_debug)
 238                 BIO_printf(bio_c_out, "psk_client_cb\n");
 239         if (!hint)
 240                 {
 241                 /* no ServerKeyExchange message*/
 242                 if (c_debug)
 243                         BIO_printf(bio_c_out,"NULL received PSK identity hint, continuing anyway\n");
 244                 }
 245         else if (c_debug)
 246                 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
 247
 248         /* lookup PSK identity and PSK key based on the given identity hint here */
 249         ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity);
 250         if (ret < 0 || (unsigned int)ret > max_identity_len)
 251                 goto out_err;
 252         if (c_debug)
 253                 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity, ret);
 254         ret=BN_hex2bn(&bn, psk_key);
 255         if (!ret)
 256                 {
 257                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
 258                 if (bn)
 259                         BN_free(bn);
 260                 return 0;
 261                 }
 262
 263         if ((unsigned int)BN_num_bytes(bn) > max_psk_len)
 264                 {
 265                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
 266                         max_psk_len, BN_num_bytes(bn));
 267                 BN_free(bn);
 268                 return 0;
 269                 }
 270
 271         psk_len=BN_bn2bin(bn, psk);
 272         BN_free(bn);
 273         if (psk_len == 0)
 274                 goto out_err;
 275
 276         if (c_debug)
 277                 BIO_printf(bio_c_out, "created PSK len=%d\n", psk_len);
 278
 279         return psk_len;
 280  out_err:
 281         if (c_debug)
 282                 BIO_printf(bio_err, "Error in PSK client callback\n");
 283         return 0;
 284         }
 285 #endif
 286
 287 static void sc_usage(void)
 288         {
 289         BIO_printf(bio_err,"usage: s_client args\n");
 290         BIO_printf(bio_err,"\n");
 291         BIO_printf(bio_err," -host host     - use -connect instead\n");
 292         BIO_printf(bio_err," -port port     - use -connect instead\n");
 293         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
 294
 295         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 296         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 297         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 298         BIO_printf(bio_err," -key arg      - Private key file to use, in cert file if\n");
 299         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 300         BIO_printf(bio_err," -keyform arg  - key format (PEM or DER) PEM default\n");
 301         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 302         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 303         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 304         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 305         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 306         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
 307         BIO_printf(bio_err," -debug        - extra output\n");
 308 #ifdef WATT32
 309         BIO_printf(bio_err," -wdebug       - WATT-32 tcp debugging\n");
 310 #endif
 311         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 312         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
 313         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
 314 #ifdef FIONBIO
 315         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 316 #endif
 317         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 318         BIO_printf(bio_err," -quiet        - no s_client output\n");
 319         BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
 320         BIO_printf(bio_err," -no_ign_eof   - don't ignore input eof\n");
 321 #ifndef OPENSSL_NO_PSK
 322         BIO_printf(bio_err," -psk_identity arg - PSK identity\n");
 323         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
 324 # ifndef OPENSSL_NO_JPAKE
 325         BIO_printf(bio_err," -jpake arg    - JPAKE secret to use\n");
 326 # endif
 327 #endif
 328 #ifndef OPENSSL_NO_SRP
 329         BIO_printf(bio_err," -srpuser user     - SRP authentification for 'user'\n");
 330         BIO_printf(bio_err," -srppass arg      - password for 'user'\n");
 331         BIO_printf(bio_err," -srp_lateuser     - SRP username into second ClientHello message\n");
 332         BIO_printf(bio_err," -srp_moregroups   - Tolerate other than the known g N values.\n");
 333         BIO_printf(bio_err," -srp_strength int - minimal mength in bits for N (default %d).\n",SRP_MINIMAL_N);
 334 #endif
 335         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 336         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 337         BIO_printf(bio_err," -tls1_2       - just use TLSv1.2\n");
 338         BIO_printf(bio_err," -tls1_1       - just use TLSv1.1\n");
 339         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 340         BIO_printf(bio_err," -dtls1        - just use DTLSv1\n");
 341         BIO_printf(bio_err," -mtu          - set the link layer MTU\n");
 342         BIO_printf(bio_err," -no_tls1_2/-no_tls1_1/-no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 343         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 344         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
 345         BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
 346         BIO_printf(bio_err,"                 command to see what is available\n");
 347         BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
 348         BIO_printf(bio_err,"                 for those protocols that support it, where\n");
 349         BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
 350         BIO_printf(bio_err,"                 only \"smtp\", \"pop3\", \"imap\", \"ftp\" and \"xmpp\"\n");
 351         BIO_printf(bio_err,"                 are supported.\n");
 352 #ifndef OPENSSL_NO_ENGINE
 353         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 354 #endif
 355         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 356         BIO_printf(bio_err," -sess_out arg - file to write SSL session to\n");
 357         BIO_printf(bio_err," -sess_in arg  - file to read SSL session from\n");
 358 #ifndef OPENSSL_NO_TLSEXT
 359         BIO_printf(bio_err," -servername host  - Set TLS extension servername in ClientHello\n");
 360         BIO_printf(bio_err," -tlsextdebug      - hex dump of all TLS extensions received\n");
 361         BIO_printf(bio_err," -status           - request certificate status from server\n");
 362         BIO_printf(bio_err," -no_ticket        - disable use of RFC4507bis session tickets\n");
 363         BIO_printf(bio_err," -proof_debug      - request an audit proof and print its hex dump\n");
 364 # ifndef OPENSSL_NO_NEXTPROTONEG
 365         BIO_printf(bio_err," -nextprotoneg arg - enable NPN extension, considering named protocols supported (comma-separated list)\n");
 366 # endif
 367 #endif
 368         BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
 369         BIO_printf(bio_err," -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
 370         BIO_printf(bio_err," -keymatexport label   - Export keying material using label\n");
 371         BIO_printf(bio_err," -keymatexportlen len  - Export len bytes of keying material (default 20)\n");
 372         }
 373
 374 #ifndef OPENSSL_NO_TLSEXT
 375
 376 /* This is a context that we pass to callbacks */
 377 typedef struct tlsextctx_st {
 378    BIO * biodebug;
 379    int ack;
 380 } tlsextctx;
 381
 382
 383 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 384         {
 385         tlsextctx * p = (tlsextctx *) arg;
 386         const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 387         if (SSL_get_servername_type(s) != -1)
 388                 p->ack = !SSL_session_reused(s) && hn != NULL;
 389         else
 390                 BIO_printf(bio_err,"Can't use SSL_get_servername\n");
 391
 392         return SSL_TLSEXT_ERR_OK;
 393         }
 394
 395 #ifndef OPENSSL_NO_SRP
 396
 397 /* This is a context that we pass to all callbacks */
 398 typedef struct srp_arg_st
 399         {
 400         char *srppassin;
 401         char *srplogin;
 402         int msg;   /* copy from c_msg */
 403         int debug; /* copy from c_debug */
 404         int amp;   /* allow more groups */
 405         int strength /* minimal size for N */ ;
 406         } SRP_ARG;
 407
 408 #define SRP_NUMBER_ITERATIONS_FOR_PRIME 64
 409
 410 static int srp_Verify_N_and_g(BIGNUM *N, BIGNUM *g)
 411         {
 412         BN_CTX *bn_ctx = BN_CTX_new();
 413         BIGNUM *p = BN_new();
 414         BIGNUM *r = BN_new();
 415         int ret =
 416                 g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) &&
 417                 BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) &&
 418                 p != NULL && BN_rshift1(p, N) &&
 419
 420                 /* p = (N-1)/2 */
 421                 BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) &&
 422                 r != NULL &&
 423
 424                 /* verify g^((N-1)/2) == -1 (mod N) */
 425                 BN_mod_exp(r, g, p, N, bn_ctx) &&
 426                 BN_add_word(r, 1) &&
 427                 BN_cmp(r, N) == 0;
 428
 429         if(r)
 430                 BN_free(r);
 431         if(p)
 432                 BN_free(p);
 433         if(bn_ctx)
 434                 BN_CTX_free(bn_ctx);
 435         return ret;
 436         }
 437
 438 /* This callback is used here for two purposes:
 439    - extended debugging
 440    - making some primality tests for unknown groups
 441    The callback is only called for a non default group.
 442
 443    An application does not need the call back at all if
 444    only the stanard groups are used.  In real life situations,
 445    client and server already share well known groups,
 446    thus there is no need to verify them.
 447    Furthermore, in case that a server actually proposes a group that
 448    is not one of those defined in RFC 5054, it is more appropriate
 449    to add the group to a static list and then compare since
 450    primality tests are rather cpu consuming.
 451 */
 452
 453 static int MS_CALLBACK ssl_srp_verify_param_cb(SSL *s, void *arg)
 454         {
 455         SRP_ARG *srp_arg = (SRP_ARG *)arg;
 456         BIGNUM *N = NULL, *g = NULL;
 457         if (!(N = SSL_get_srp_N(s)) || !(g = SSL_get_srp_g(s)))
 458                 return 0;
 459         if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1)
 460                 {
 461                 BIO_printf(bio_err, "SRP parameters:\n");
 462                 BIO_printf(bio_err,"\tN="); BN_print(bio_err,N);
 463                 BIO_printf(bio_err,"\n\tg="); BN_print(bio_err,g);
 464                 BIO_printf(bio_err,"\n");
 465                 }
 466
 467         if (SRP_check_known_gN_param(g,N))
 468                 return 1;
 469
 470         if (srp_arg->amp == 1)
 471                 {
 472                 if (srp_arg->debug)
 473                         BIO_printf(bio_err, "SRP param N and g are not known params, going to check deeper.\n");
 474
 475 /* The srp_moregroups is a real debugging feature.
 476    Implementors should rather add the value to the known ones.
 477    The minimal size has already been tested.
 478 */
 479                 if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N,g))
 480                         return 1;
 481                 }
 482         BIO_printf(bio_err, "SRP param N and g rejected.\n");
 483         return 0;
 484         }
 485
 486 #define PWD_STRLEN 1024
 487
 488 static char * MS_CALLBACK ssl_give_srp_client_pwd_cb(SSL *s, void *arg)
 489         {
 490         SRP_ARG *srp_arg = (SRP_ARG *)arg;
 491         char *pass = (char *)OPENSSL_malloc(PWD_STRLEN+1);
 492         PW_CB_DATA cb_tmp;
 493         int l;
 494
 495         cb_tmp.password = (char *)srp_arg->srppassin;
 496         cb_tmp.prompt_info = "SRP user";
 497         if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp))<0)
 498                 {
 499                 BIO_printf (bio_err, "Can't read Password\n");
 500                 OPENSSL_free(pass);
 501                 return NULL;
 502                 }
 503         *(pass+l)= '\0';
 504
 505         return pass;
 506         }
 507
 508 #endif
 509         char *srtp_profiles = NULL;
 510
 511 # ifndef OPENSSL_NO_NEXTPROTONEG
 512 /* This the context that we pass to next_proto_cb */
 513 typedef struct tlsextnextprotoctx_st {
 514         unsigned char *data;
 515         unsigned short len;
 516         int status;
 517 } tlsextnextprotoctx;
 518
 519 static tlsextnextprotoctx next_proto;
 520
 521 static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg)
 522         {
 523         tlsextnextprotoctx *ctx = arg;
 524
 525         if (!c_quiet)
 526                 {
 527                 /* We can assume that |in| is syntactically valid. */
 528                 unsigned i;
 529                 BIO_printf(bio_c_out, "Protocols advertised by server: ");
 530                 for (i = 0; i < inlen; )
 531                         {
 532                         if (i)
 533                                 BIO_write(bio_c_out, ", ", 2);
 534                         BIO_write(bio_c_out, &in[i + 1], in[i]);
 535                         i += in[i] + 1;
 536                         }
 537                 BIO_write(bio_c_out, "\n", 1);
 538                 }
 539
 540         ctx->status = SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
 541         return SSL_TLSEXT_ERR_OK;
 542         }
 543 # endif  /* ndef OPENSSL_NO_NEXTPROTONEG */
 544 #endif
 545
 546 enum
 547 {
 548         PROTO_OFF       = 0,
 549         PROTO_SMTP,
 550         PROTO_POP3,
 551         PROTO_IMAP,
 552         PROTO_FTP,
 553         PROTO_XMPP
 554 };
 555
 556 int MAIN(int, char **);
 557
 558 int MAIN(int argc, char **argv)
 559         {
 560         unsigned int off=0, clr=0;
 561         unsigned int cert_flags=0;
 562         int build_chain = 0;
 563         SSL *con=NULL;
 564 #ifndef OPENSSL_NO_KRB5
 565         KSSL_CTX *kctx;
 566 #endif
 567         int s,k,width,state=0;
 568         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
 569         int cbuf_len,cbuf_off;
 570         int sbuf_len,sbuf_off;
 571         fd_set readfds,writefds;
 572         short port=PORT;
 573         int full_log=1;
 574         char *host=SSL_HOST_NAME;
 575         char *cert_file=NULL,*key_file=NULL;
 576         int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
 577         char *passarg = NULL, *pass = NULL;
 578         X509 *cert = NULL;
 579         EVP_PKEY *key = NULL;
 580         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 581         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 582         int crlf=0;
 583         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 584         SSL_CTX *ctx=NULL;
 585         int ret=1,in_init=1,i,nbio_test=0;
 586         int starttls_proto = PROTO_OFF;
 587         int prexit = 0;
 588         X509_VERIFY_PARAM *vpm = NULL;
 589         int badarg = 0;
 590         const SSL_METHOD *meth=NULL;
 591         int socket_type=SOCK_STREAM;
 592         BIO *sbio;
 593         char *inrand=NULL;
 594         int mbuf_len=0;
 595         struct timeval timeout, *timeoutp;
 596 #ifndef OPENSSL_NO_ENGINE
 597         char *engine_id=NULL;
 598         char *ssl_client_engine_id=NULL;
 599         ENGINE *ssl_client_engine=NULL;
 600 #endif
 601         ENGINE *e=NULL;
 602 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
 603         struct timeval tv;
 604 #if defined(OPENSSL_SYS_BEOS_R5)
 605         int stdin_set = 0;
 606 #endif
 607 #endif
 608 #ifndef OPENSSL_NO_TLSEXT
 609         char *servername = NULL;
 610         const char *curves=NULL;
 611         const char *sigalgs=NULL;
 612         const char *client_sigalgs=NULL;
 613         tlsextctx tlsextcbp =
 614         {NULL,0};
 615 # ifndef OPENSSL_NO_NEXTPROTONEG
 616         const char *next_proto_neg_in = NULL;
 617 # endif
 618 #endif
 619         char *sess_in = NULL;
 620         char *sess_out = NULL;
 621         struct sockaddr peer;
 622         int peerlen = sizeof(peer);
 623         int enable_timeouts = 0 ;
 624         long socket_mtu = 0;
 625 #ifndef OPENSSL_NO_JPAKE
 626         char *jpake_secret = NULL;
 627 #endif
 628 #ifndef OPENSSL_NO_SRP
 629         char * srppass = NULL;
 630         int srp_lateuser = 0;
 631         SRP_ARG srp_arg = {NULL,NULL,0,0,0,1024};
 632 #endif
 633         SSL_EXCERT *exc = NULL;
 634
 635         meth=SSLv23_client_method();
 636
 637         apps_startup();
 638         c_Pause=0;
 639         c_quiet=0;
 640         c_ign_eof=0;
 641         c_debug=0;
 642         c_msg=0;
 643         c_showcerts=0;
 644
 645         if (bio_err == NULL)
 646                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 647
 648         if (!load_config(bio_err, NULL))
 649                 goto end;
 650
 651         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 652                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 653                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
 654                 {
 655                 BIO_printf(bio_err,"out of memory\n");
 656                 goto end;
 657                 }
 658
 659         verify_depth=0;
 660         verify_error=X509_V_OK;
 661 #ifdef FIONBIO
 662         c_nbio=0;
 663 #endif
 664
 665         argc--;
 666         argv++;
 667         while (argc >= 1)
 668                 {
 669                 if      (strcmp(*argv,"-host") == 0)
 670                         {
 671                         if (--argc < 1) goto bad;
 672                         host= *(++argv);
 673                         }
 674                 else if (strcmp(*argv,"-port") == 0)
 675                         {
 676                         if (--argc < 1) goto bad;
 677                         port=atoi(*(++argv));
 678                         if (port == 0) goto bad;
 679                         }
 680                 else if (strcmp(*argv,"-connect") == 0)
 681                         {
 682                         if (--argc < 1) goto bad;
 683                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 684                                 goto bad;
 685                         }
 686                 else if (strcmp(*argv,"-verify") == 0)
 687                         {
 688                         verify=SSL_VERIFY_PEER;
 689                         if (--argc < 1) goto bad;
 690                         verify_depth=atoi(*(++argv));
 691                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 692                         }
 693                 else if (strcmp(*argv,"-cert") == 0)
 694                         {
 695                         if (--argc < 1) goto bad;
 696                         cert_file= *(++argv);
 697                         }
 698                 else if (strcmp(*argv,"-sess_out") == 0)
 699                         {
 700                         if (--argc < 1) goto bad;
 701                         sess_out = *(++argv);
 702                         }
 703                 else if (strcmp(*argv,"-sess_in") == 0)
 704                         {
 705                         if (--argc < 1) goto bad;
 706                         sess_in = *(++argv);
 707                         }
 708                 else if (strcmp(*argv,"-certform") == 0)
 709                         {
 710                         if (--argc < 1) goto bad;
 711                         cert_format = str2fmt(*(++argv));
 712                         }
 713                 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm))
 714                         {
 715                         if (badarg)
 716                                 goto bad;
 717                         continue;
 718                         }
 719                 else if (strcmp(*argv,"-verify_return_error") == 0)
 720                         verify_return_error = 1;
 721                 else if (args_excert(&argv, &argc, &badarg, bio_err, &exc))
 722                         {
 723                         if (badarg)
 724                                 goto bad;
 725                         continue;
 726                         }
 727                 else if (strcmp(*argv,"-prexit") == 0)
 728                         prexit=1;
 729                 else if (strcmp(*argv,"-crlf") == 0)
 730                         crlf=1;
 731                 else if (strcmp(*argv,"-quiet") == 0)
 732                         {
 733                         c_quiet=1;
 734                         c_ign_eof=1;
 735                         }
 736                 else if (strcmp(*argv,"-ign_eof") == 0)
 737                         c_ign_eof=1;
 738                 else if (strcmp(*argv,"-no_ign_eof") == 0)
 739                         c_ign_eof=0;
 740                 else if (strcmp(*argv,"-pause") == 0)
 741                         c_Pause=1;
 742                 else if (strcmp(*argv,"-debug") == 0)
 743                         c_debug=1;
 744 #ifndef OPENSSL_NO_TLSEXT
 745                 else if (strcmp(*argv,"-tlsextdebug") == 0)
 746                         c_tlsextdebug=1;
 747                 else if (strcmp(*argv,"-status") == 0)
 748                         c_status_req=1;
 749                 else if (strcmp(*argv,"-proof_debug") == 0)
 750                         c_proof_debug=1;
 751 #endif
 752 #ifdef WATT32
 753                 else if (strcmp(*argv,"-wdebug") == 0)
 754                         dbug_init();
 755 #endif
 756                 else if (strcmp(*argv,"-msg") == 0)
 757                         c_msg=1;
 758                 else if (strcmp(*argv,"-msgfile") == 0)
 759                         {
 760                         if (--argc < 1) goto bad;
 761                         bio_c_msg = BIO_new_file(*(++argv), "w");
 762                         }
 763 #ifndef OPENSSL_NO_SSL_TRACE
 764                 else if (strcmp(*argv,"-trace") == 0)
 765                         c_msg=2;
 766 #endif
 767                 else if (strcmp(*argv,"-showcerts") == 0)
 768                         c_showcerts=1;
 769                 else if (strcmp(*argv,"-nbio_test") == 0)
 770                         nbio_test=1;
 771                 else if (strcmp(*argv,"-state") == 0)
 772                         state=1;
 773 #ifndef OPENSSL_NO_PSK
 774                 else if (strcmp(*argv,"-psk_identity") == 0)
 775                         {
 776                         if (--argc < 1) goto bad;
 777                         psk_identity=*(++argv);
 778                         }
 779                 else if (strcmp(*argv,"-psk") == 0)
 780                         {
 781                         size_t j;
 782
 783                         if (--argc < 1) goto bad;
 784                         psk_key=*(++argv);
 785                         for (j = 0; j < strlen(psk_key); j++)
 786                                 {
 787                                 if (isxdigit((unsigned char)psk_key[j]))
 788                                         continue;
 789                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
 790                                 goto bad;
 791                                 }
 792                         }
 793 #endif
 794 #ifndef OPENSSL_NO_SRP
 795                 else if (strcmp(*argv,"-srpuser") == 0)
 796                         {
 797                         if (--argc < 1) goto bad;
 798                         srp_arg.srplogin= *(++argv);
 799                         meth=TLSv1_client_method();
 800                         }
 801                 else if (strcmp(*argv,"-srppass") == 0)
 802                         {
 803                         if (--argc < 1) goto bad;
 804                         srppass= *(++argv);
 805                         meth=TLSv1_client_method();
 806                         }
 807                 else if (strcmp(*argv,"-srp_strength") == 0)
 808                         {
 809                         if (--argc < 1) goto bad;
 810                         srp_arg.strength=atoi(*(++argv));
 811                         BIO_printf(bio_err,"SRP minimal length for N is %d\n",srp_arg.strength);
 812                         meth=TLSv1_client_method();
 813                         }
 814                 else if (strcmp(*argv,"-srp_lateuser") == 0)
 815                         {
 816                         srp_lateuser= 1;
 817                         meth=TLSv1_client_method();
 818                         }
 819                 else if (strcmp(*argv,"-srp_moregroups") == 0)
 820                         {
 821                         srp_arg.amp=1;
 822                         meth=TLSv1_client_method();
 823                         }
 824 #endif
 825 #ifndef OPENSSL_NO_SSL2
 826                 else if (strcmp(*argv,"-ssl2") == 0)
 827                         meth=SSLv2_client_method();
 828 #endif
 829 #ifndef OPENSSL_NO_SSL3
 830                 else if (strcmp(*argv,"-ssl3") == 0)
 831                         meth=SSLv3_client_method();
 832 #endif
 833 #ifndef OPENSSL_NO_TLS1
 834                 else if (strcmp(*argv,"-tls1_2") == 0)
 835                         meth=TLSv1_2_client_method();
 836                 else if (strcmp(*argv,"-tls1_1") == 0)
 837                         meth=TLSv1_1_client_method();
 838                 else if (strcmp(*argv,"-tls1") == 0)
 839                         meth=TLSv1_client_method();
 840 #endif
 841 #ifndef OPENSSL_NO_DTLS1
 842                 else if (strcmp(*argv,"-dtls1") == 0)
 843                         {
 844                         meth=DTLSv1_client_method();
 845                         socket_type=SOCK_DGRAM;
 846                         }
 847                 else if (strcmp(*argv,"-timeout") == 0)
 848                         enable_timeouts=1;
 849                 else if (strcmp(*argv,"-mtu") == 0)
 850                         {
 851                         if (--argc < 1) goto bad;
 852                         socket_mtu = atol(*(++argv));
 853                         }
 854 #endif
 855                 else if (strcmp(*argv,"-bugs") == 0)
 856                         bugs=1;
 857                 else if (strcmp(*argv,"-keyform") == 0)
 858                         {
 859                         if (--argc < 1) goto bad;
 860                         key_format = str2fmt(*(++argv));
 861                         }
 862                 else if (strcmp(*argv,"-pass") == 0)
 863                         {
 864                         if (--argc < 1) goto bad;
 865                         passarg = *(++argv);
 866                         }
 867                 else if (strcmp(*argv,"-key") == 0)
 868                         {
 869                         if (--argc < 1) goto bad;
 870                         key_file= *(++argv);
 871                         }
 872                 else if (strcmp(*argv,"-reconnect") == 0)
 873                         {
 874                         reconnect=5;
 875                         }
 876                 else if (strcmp(*argv,"-CApath") == 0)
 877                         {
 878                         if (--argc < 1) goto bad;
 879                         CApath= *(++argv);
 880                         }
 881                 else if (strcmp(*argv,"-build_chain") == 0)
 882                         build_chain = 1;
 883                 else if (strcmp(*argv,"-CAfile") == 0)
 884                         {
 885                         if (--argc < 1) goto bad;
 886                         CAfile= *(++argv);
 887                         }
 888                 else if (strcmp(*argv,"-no_tls1_2") == 0)
 889                         off|=SSL_OP_NO_TLSv1_2;
 890                 else if (strcmp(*argv,"-no_tls1_1") == 0)
 891                         off|=SSL_OP_NO_TLSv1_1;
 892                 else if (strcmp(*argv,"-no_tls1") == 0)
 893                         off|=SSL_OP_NO_TLSv1;
 894                 else if (strcmp(*argv,"-no_ssl3") == 0)
 895                         off|=SSL_OP_NO_SSLv3;
 896                 else if (strcmp(*argv,"-no_ssl2") == 0)
 897                         off|=SSL_OP_NO_SSLv2;
 898                 else if (strcmp(*argv,"-no_comp") == 0)
 899                         { off|=SSL_OP_NO_COMPRESSION; }
 900 #ifndef OPENSSL_NO_TLSEXT
 901                 else if (strcmp(*argv,"-no_ticket") == 0)
 902                         { off|=SSL_OP_NO_TICKET; }
 903 # ifndef OPENSSL_NO_NEXTPROTONEG
 904                 else if (strcmp(*argv,"-nextprotoneg") == 0)
 905                         {
 906                         if (--argc < 1) goto bad;
 907                         next_proto_neg_in = *(++argv);
 908                         }
 909 # endif
 910 #endif
 911                 else if (strcmp(*argv,"-serverpref") == 0)
 912                         off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
 913                 else if (strcmp(*argv,"-legacy_renegotiation") == 0)
 914                         off|=SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION;
 915                 else if (strcmp(*argv,"-legacy_server_connect") == 0)
 916                         { off|=SSL_OP_LEGACY_SERVER_CONNECT; }
 917                 else if (strcmp(*argv,"-no_legacy_server_connect") == 0)
 918                         { clr|=SSL_OP_LEGACY_SERVER_CONNECT; }
 919                 else if (strcmp(*argv,"-cipher") == 0)
 920                         {
 921                         if (--argc < 1) goto bad;
 922                         cipher= *(++argv);
 923                         }
 924 #ifdef FIONBIO
 925                 else if (strcmp(*argv,"-nbio") == 0)
 926                         { c_nbio=1; }
 927 #endif
 928                 else if (strcmp(*argv,"-starttls") == 0)
 929                         {
 930                         if (--argc < 1) goto bad;
 931                         ++argv;
 932                         if (strcmp(*argv,"smtp") == 0)
 933                                 starttls_proto = PROTO_SMTP;
 934                         else if (strcmp(*argv,"pop3") == 0)
 935                                 starttls_proto = PROTO_POP3;
 936                         else if (strcmp(*argv,"imap") == 0)
 937                                 starttls_proto = PROTO_IMAP;
 938                         else if (strcmp(*argv,"ftp") == 0)
 939                                 starttls_proto = PROTO_FTP;
 940                         else if (strcmp(*argv, "xmpp") == 0)
 941                                 starttls_proto = PROTO_XMPP;
 942                         else
 943                                 goto bad;
 944                         }
 945 #ifndef OPENSSL_NO_ENGINE
 946                 else if (strcmp(*argv,"-engine") == 0)
 947                         {
 948                         if (--argc < 1) goto bad;
 949                         engine_id = *(++argv);
 950                         }
 951                 else if (strcmp(*argv,"-ssl_client_engine") == 0)
 952                         {
 953                         if (--argc < 1) goto bad;
 954                         ssl_client_engine_id = *(++argv);
 955                         }
 956 #endif
 957                 else if (strcmp(*argv,"-rand") == 0)
 958                         {
 959                         if (--argc < 1) goto bad;
 960                         inrand= *(++argv);
 961                         }
 962 #ifndef OPENSSL_NO_TLSEXT
 963                 else if (strcmp(*argv,"-servername") == 0)
 964                         {
 965                         if (--argc < 1) goto bad;
 966                         servername= *(++argv);
 967                         /* meth=TLSv1_client_method(); */
 968                         }
 969                 else if (strcmp(*argv,"-curves") == 0)
 970                         {
 971                         if (--argc < 1) goto bad;
 972                         curves= *(++argv);
 973                         }
 974                 else if (strcmp(*argv,"-sigalgs") == 0)
 975                         {
 976                         if (--argc < 1) goto bad;
 977                         sigalgs= *(++argv);
 978                         }
 979                 else if (strcmp(*argv,"-client_sigalgs") == 0)
 980                         {
 981                         if (--argc < 1) goto bad;
 982                         client_sigalgs= *(++argv);
 983                         }
 984 #endif
 985 #ifndef OPENSSL_NO_JPAKE
 986                 else if (strcmp(*argv,"-jpake") == 0)
 987                         {
 988                         if (--argc < 1) goto bad;
 989                         jpake_secret = *++argv;
 990                         }
 991 #endif
 992                 else if (strcmp(*argv,"-use_srtp") == 0)
 993                         {
 994                         if (--argc < 1) goto bad;
 995                         srtp_profiles = *(++argv);
 996                         }
 997                 else if (strcmp(*argv,"-keymatexport") == 0)
 998                         {
 999                         if (--argc < 1) goto bad;
1000                         keymatexportlabel= *(++argv);
1001                         }
1002                 else if (strcmp(*argv,"-keymatexportlen") == 0)
1003                         {
1004                         if (--argc < 1) goto bad;
1005                         keymatexportlen=atoi(*(++argv));
1006                         if (keymatexportlen == 0) goto bad;
1007                         }
1008                 else if (strcmp(*argv, "-cert_strict") == 0)
1009                         cert_flags |= SSL_CERT_FLAG_TLS_STRICT;
1010                 else
1011                         {
1012                         BIO_printf(bio_err,"unknown option %s\n",*argv);
1013                         badop=1;
1014                         break;
1015                         }
1016                 argc--;
1017                 argv++;
1018                 }
1019         if (badop)
1020                 {
1021 bad:
1022                 sc_usage();
1023                 goto end;
1024                 }
1025
1026 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1027         if (jpake_secret)
1028                 {
1029                 if (psk_key)
1030                         {
1031                         BIO_printf(bio_err,
1032                                    "Can't use JPAKE and PSK together\n");
1033                         goto end;
1034                         }
1035                 psk_identity = "JPAKE";
1036                 if (cipher)
1037                         {
1038                         BIO_printf(bio_err, "JPAKE sets cipher to PSK\n");
1039                         goto end;
1040                         }
1041                 cipher = "PSK";
1042                 }
1043 #endif
1044
1045         OpenSSL_add_ssl_algorithms();
1046         SSL_load_error_strings();
1047
1048 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
1049         next_proto.status = -1;
1050         if (next_proto_neg_in)
1051                 {
1052                 next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in);
1053                 if (next_proto.data == NULL)
1054                         {
1055                         BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
1056                         goto end;
1057                         }
1058                 }
1059         else
1060                 next_proto.data = NULL;
1061 #endif
1062
1063 #ifndef OPENSSL_NO_ENGINE
1064         e = setup_engine(bio_err, engine_id, 1);
1065         if (ssl_client_engine_id)
1066                 {
1067                 ssl_client_engine = ENGINE_by_id(ssl_client_engine_id);
1068                 if (!ssl_client_engine)
1069                         {
1070                         BIO_printf(bio_err,
1071                                         "Error getting client auth engine\n");
1072                         goto end;
1073                         }
1074                 }
1075
1076 #endif
1077         if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
1078                 {
1079                 BIO_printf(bio_err, "Error getting password\n");
1080                 goto end;
1081                 }
1082
1083         if (key_file == NULL)
1084                 key_file = cert_file;
1085
1086
1087         if (key_file)
1088
1089                 {
1090
1091                 key = load_key(bio_err, key_file, key_format, 0, pass, e,
1092                                "client certificate private key file");
1093                 if (!key)
1094                         {
1095                         ERR_print_errors(bio_err);
1096                         goto end;
1097                         }
1098
1099                 }
1100
1101         if (cert_file)
1102
1103                 {
1104                 cert = load_cert(bio_err,cert_file,cert_format,
1105                                 NULL, e, "client certificate file");
1106
1107                 if (!cert)
1108                         {
1109                         ERR_print_errors(bio_err);
1110                         goto end;
1111                         }
1112                 }
1113
1114         if (!load_excert(&exc, bio_err))
1115                 goto end;
1116
1117         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1118                 && !RAND_status())
1119                 {
1120                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
1121                 }
1122         if (inrand != NULL)
1123                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
1124                         app_RAND_load_files(inrand));
1125
1126         if (bio_c_out == NULL)
1127                 {
1128                 if (c_quiet && !c_debug)
1129                         {
1130                         bio_c_out=BIO_new(BIO_s_null());
1131                         if (c_msg && !bio_c_msg)
1132                                 bio_c_msg=BIO_new_fp(stdout,BIO_NOCLOSE);
1133                         }
1134                 else
1135                         {
1136                         if (bio_c_out == NULL)
1137                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
1138                         }
1139                 }
1140
1141 #ifndef OPENSSL_NO_SRP
1142         if(!app_passwd(bio_err, srppass, NULL, &srp_arg.srppassin, NULL))
1143                 {
1144                 BIO_printf(bio_err, "Error getting password\n");
1145                 goto end;
1146                 }
1147 #endif
1148
1149         ctx=SSL_CTX_new(meth);
1150         if (ctx == NULL)
1151                 {
1152                 ERR_print_errors(bio_err);
1153                 goto end;
1154                 }
1155
1156         if (vpm)
1157                 SSL_CTX_set1_param(ctx, vpm);
1158
1159 #ifndef OPENSSL_NO_ENGINE
1160         if (ssl_client_engine)
1161                 {
1162                 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine))
1163                         {
1164                         BIO_puts(bio_err, "Error setting client auth engine\n");
1165                         ERR_print_errors(bio_err);
1166                         ENGINE_free(ssl_client_engine);
1167                         goto end;
1168                         }
1169                 ENGINE_free(ssl_client_engine);
1170                 }
1171 #endif
1172
1173 #ifndef OPENSSL_NO_PSK
1174 #ifdef OPENSSL_NO_JPAKE
1175         if (psk_key != NULL)
1176 #else
1177         if (psk_key != NULL || jpake_secret)
1178 #endif
1179                 {
1180                 if (c_debug)
1181                         BIO_printf(bio_c_out, "PSK key given or JPAKE in use, setting client callback\n");
1182                 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1183                 }
1184         if (srtp_profiles != NULL)
1185                 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
1186 #endif
1187         if (bugs)
1188                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
1189         else
1190                 SSL_CTX_set_options(ctx,off);
1191
1192         if (clr)
1193                 SSL_CTX_clear_options(ctx, clr);
1194         if (cert_flags) SSL_CTX_set_cert_flags(ctx, cert_flags);
1195         if (exc) ssl_ctx_set_excert(ctx, exc);
1196         /* DTLS: partial reads end up discarding unread UDP bytes :-(
1197          * Setting read ahead solves this problem.
1198          */
1199         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1200
1201 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
1202         if (next_proto.data)
1203                 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
1204 #endif
1205
1206         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1207         if (cipher != NULL)
1208                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
1209                 BIO_printf(bio_err,"error setting cipher list\n");
1210                 ERR_print_errors(bio_err);
1211                 goto end;
1212         }
1213 #if 0
1214         else
1215                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
1216 #endif
1217
1218         SSL_CTX_set_verify(ctx,verify,verify_callback);
1219
1220         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1221                 (!SSL_CTX_set_default_verify_paths(ctx)))
1222                 {
1223                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
1224                 ERR_print_errors(bio_err);
1225                 /* goto end; */
1226                 }
1227
1228         if (!set_cert_key_stuff(ctx,cert,key, NULL, build_chain))
1229                 goto end;
1230
1231 #ifndef OPENSSL_NO_TLSEXT
1232         if (curves != NULL)
1233                 if(!SSL_CTX_set1_curves_list(ctx, curves)) {
1234                 BIO_printf(bio_err,"error setting curve list\n");
1235                 ERR_print_errors(bio_err);
1236                 goto end;
1237         }
1238         if (sigalgs != NULL)
1239                 if(!SSL_CTX_set1_sigalgs_list(ctx,sigalgs)) {
1240                 BIO_printf(bio_err,"error setting signature algorithms list\n");
1241                 ERR_print_errors(bio_err);
1242                 goto end;
1243         }
1244         if (client_sigalgs != NULL)
1245                 if(!SSL_CTX_set1_client_sigalgs_list(ctx,client_sigalgs)) {
1246                 BIO_printf(bio_err,"error setting client signature algorithms list\n");
1247                 ERR_print_errors(bio_err);
1248                 goto end;
1249         }
1250         if (servername != NULL)
1251                 {
1252                 tlsextcbp.biodebug = bio_err;
1253                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1254                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1255                 }
1256 #ifndef OPENSSL_NO_SRP
1257         if (srp_arg.srplogin)
1258                 {
1259                 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin))
1260                         {
1261                         BIO_printf(bio_err,"Unable to set SRP username\n");
1262                         goto end;
1263                         }
1264                 srp_arg.msg = c_msg;
1265                 srp_arg.debug = c_debug ;
1266                 SSL_CTX_set_srp_cb_arg(ctx,&srp_arg);
1267                 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb);
1268                 SSL_CTX_set_srp_strength(ctx, srp_arg.strength);
1269                 if (c_msg || c_debug || srp_arg.amp == 0)
1270                         SSL_CTX_set_srp_verify_param_callback(ctx, ssl_srp_verify_param_cb);
1271                 }
1272
1273 #endif
1274         if (c_proof_debug)
1275                 SSL_CTX_set_tlsext_authz_server_audit_proof_cb(ctx,
1276                                                                audit_proof_cb);
1277 #endif
1278
1279         con=SSL_new(ctx);
1280         if (sess_in)
1281                 {
1282                 SSL_SESSION *sess;
1283                 BIO *stmp = BIO_new_file(sess_in, "r");
1284                 if (!stmp)
1285                         {
1286                         BIO_printf(bio_err, "Can't open session file %s\n",
1287                                                 sess_in);
1288                         ERR_print_errors(bio_err);
1289                         goto end;
1290                         }
1291                 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1292                 BIO_free(stmp);
1293                 if (!sess)
1294                         {
1295                         BIO_printf(bio_err, "Can't open session file %s\n",
1296                                                 sess_in);
1297                         ERR_print_errors(bio_err);
1298                         goto end;
1299                         }
1300                 SSL_set_session(con, sess);
1301                 SSL_SESSION_free(sess);
1302                 }
1303 #ifndef OPENSSL_NO_TLSEXT
1304         if (servername != NULL)
1305                 {
1306                 if (!SSL_set_tlsext_host_name(con,servername))
1307                         {
1308                         BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
1309                         ERR_print_errors(bio_err);
1310                         goto end;
1311                         }
1312                 }
1313 #endif
1314 #ifndef OPENSSL_NO_KRB5
1315         if (con  &&  (kctx = kssl_ctx_new()) != NULL)
1316                 {
1317                 SSL_set0_kssl_ctx(con, kctx);
1318                 kssl_ctx_setstring(kctx, KSSL_SERVER, host);
1319                 }
1320 #endif  /* OPENSSL_NO_KRB5  */
1321 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
1322 #if 0
1323 #ifdef TLSEXT_TYPE_opaque_prf_input
1324         SSL_set_tlsext_opaque_prf_input(con, "Test client", 11);
1325 #endif
1326 #endif
1327
1328 re_start:
1329
1330         if (init_client(&s,host,port,socket_type) == 0)
1331                 {
1332                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
1333                 SHUTDOWN(s);
1334                 goto end;
1335                 }
1336         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
1337
1338 #ifdef FIONBIO
1339         if (c_nbio)
1340                 {
1341                 unsigned long l=1;
1342                 BIO_printf(bio_c_out,"turning on non blocking io\n");
1343                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
1344                         {
1345                         ERR_print_errors(bio_err);
1346                         goto end;
1347                         }
1348                 }
1349 #endif
1350         if (c_Pause & 0x01) SSL_set_debug(con, 1);
1351
1352         if ( SSL_version(con) == DTLS1_VERSION)
1353                 {
1354
1355                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
1356                 if (getsockname(s, &peer, (void *)&peerlen) < 0)
1357                         {
1358                         BIO_printf(bio_err, "getsockname:errno=%d\n",
1359                                 get_last_socket_error());
1360                         SHUTDOWN(s);
1361                         goto end;
1362                         }
1363
1364                 (void)BIO_ctrl_set_connected(sbio, 1, &peer);
1365
1366                 if (enable_timeouts)
1367                         {
1368                         timeout.tv_sec = 0;
1369                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
1370                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
1371
1372                         timeout.tv_sec = 0;
1373                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
1374                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
1375                         }
1376
1377                 if (socket_mtu > 28)
1378                         {
1379                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
1380                         SSL_set_mtu(con, socket_mtu - 28);
1381                         }
1382                 else
1383                         /* want to do MTU discovery */
1384                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
1385                 }
1386         else
1387                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
1388
1389         if (nbio_test)
1390                 {
1391                 BIO *test;
1392
1393                 test=BIO_new(BIO_f_nbio_test());
1394                 sbio=BIO_push(test,sbio);
1395                 }
1396
1397         if (c_debug)
1398                 {
1399                 SSL_set_debug(con, 1);
1400                 BIO_set_callback(sbio,bio_dump_callback);
1401                 BIO_set_callback_arg(sbio,(char *)bio_c_out);
1402                 }
1403         if (c_msg)
1404                 {
1405 #ifndef OPENSSL_NO_SSL_TRACE
1406                 if (c_msg == 2)
1407                         SSL_set_msg_callback(con, SSL_trace);
1408                 else
1409 #endif
1410                         SSL_set_msg_callback(con, msg_cb);
1411                 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out);
1412                 }
1413 #ifndef OPENSSL_NO_TLSEXT
1414         if (c_tlsextdebug)
1415                 {
1416                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1417                 SSL_set_tlsext_debug_arg(con, bio_c_out);
1418                 }
1419         if (c_status_req)
1420                 {
1421                 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
1422                 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
1423                 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
1424 #if 0
1425 {
1426 STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null();
1427 OCSP_RESPID *id = OCSP_RESPID_new();
1428 id->value.byKey = ASN1_OCTET_STRING_new();
1429 id->type = V_OCSP_RESPID_KEY;
1430 ASN1_STRING_set(id->value.byKey, "Hello World", -1);
1431 sk_OCSP_RESPID_push(ids, id);
1432 SSL_set_tlsext_status_ids(con, ids);
1433 }
1434 #endif
1435                 }
1436 #endif
1437 #ifndef OPENSSL_NO_JPAKE
1438         if (jpake_secret)
1439                 jpake_client_auth(bio_c_out, sbio, jpake_secret);
1440 #endif
1441
1442         SSL_set_bio(con,sbio,sbio);
1443         SSL_set_connect_state(con);
1444
1445         /* ok, lets connect */
1446         width=SSL_get_fd(con)+1;
1447
1448         read_tty=1;
1449         write_tty=0;
1450         tty_on=0;
1451         read_ssl=1;
1452         write_ssl=1;
1453
1454         cbuf_len=0;
1455         cbuf_off=0;
1456         sbuf_len=0;
1457         sbuf_off=0;
1458
1459         /* This is an ugly hack that does a lot of assumptions */
1460         /* We do have to handle multi-line responses which may come
1461            in a single packet or not. We therefore have to use
1462            BIO_gets() which does need a buffering BIO. So during
1463            the initial chitchat we do push a buffering BIO into the
1464            chain that is removed again later on to not disturb the
1465            rest of the s_client operation. */
1466         if (starttls_proto == PROTO_SMTP)
1467                 {
1468                 int foundit=0;
1469                 BIO *fbio = BIO_new(BIO_f_buffer());
1470                 BIO_push(fbio, sbio);
1471                 /* wait for multi-line response to end from SMTP */
1472                 do
1473                         {
1474                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1475                         }
1476                 while (mbuf_len>3 && mbuf[3]=='-');
1477                 /* STARTTLS command requires EHLO... */
1478                 BIO_printf(fbio,"EHLO openssl.client.net\r\n");
1479                 (void)BIO_flush(fbio);
1480                 /* wait for multi-line response to end EHLO SMTP response */
1481                 do
1482                         {
1483                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1484                         if (strstr(mbuf,"STARTTLS"))
1485                                 foundit=1;
1486                         }
1487                 while (mbuf_len>3 && mbuf[3]=='-');
1488                 (void)BIO_flush(fbio);
1489                 BIO_pop(fbio);
1490                 BIO_free(fbio);
1491                 if (!foundit)
1492                         BIO_printf(bio_err,
1493                                    "didn't found starttls in server response,"
1494                                    " try anyway...\n");
1495                 BIO_printf(sbio,"STARTTLS\r\n");
1496                 BIO_read(sbio,sbuf,BUFSIZZ);
1497                 }
1498         else if (starttls_proto == PROTO_POP3)
1499                 {
1500                 BIO_read(sbio,mbuf,BUFSIZZ);
1501                 BIO_printf(sbio,"STLS\r\n");
1502                 BIO_read(sbio,sbuf,BUFSIZZ);
1503                 }
1504         else if (starttls_proto == PROTO_IMAP)
1505                 {
1506                 int foundit=0;
1507                 BIO *fbio = BIO_new(BIO_f_buffer());
1508                 BIO_push(fbio, sbio);
1509                 BIO_gets(fbio,mbuf,BUFSIZZ);
1510                 /* STARTTLS command requires CAPABILITY... */
1511                 BIO_printf(fbio,". CAPABILITY\r\n");
1512                 (void)BIO_flush(fbio);
1513                 /* wait for multi-line CAPABILITY response */
1514                 do
1515                         {
1516                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1517                         if (strstr(mbuf,"STARTTLS"))
1518                                 foundit=1;
1519                         }
1520                 while (mbuf_len>3 && mbuf[0]!='.');
1521                 (void)BIO_flush(fbio);
1522                 BIO_pop(fbio);
1523                 BIO_free(fbio);
1524                 if (!foundit)
1525                         BIO_printf(bio_err,
1526                                    "didn't found STARTTLS in server response,"
1527                                    " try anyway...\n");
1528                 BIO_printf(sbio,". STARTTLS\r\n");
1529                 BIO_read(sbio,sbuf,BUFSIZZ);
1530                 }
1531         else if (starttls_proto == PROTO_FTP)
1532                 {
1533                 BIO *fbio = BIO_new(BIO_f_buffer());
1534                 BIO_push(fbio, sbio);
1535                 /* wait for multi-line response to end from FTP */
1536                 do
1537                         {
1538                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1539                         }
1540                 while (mbuf_len>3 && mbuf[3]=='-');
1541                 (void)BIO_flush(fbio);
1542                 BIO_pop(fbio);
1543                 BIO_free(fbio);
1544                 BIO_printf(sbio,"AUTH TLS\r\n");
1545                 BIO_read(sbio,sbuf,BUFSIZZ);
1546                 }
1547         if (starttls_proto == PROTO_XMPP)
1548                 {
1549                 int seen = 0;
1550                 BIO_printf(sbio,"<stream:stream "
1551                     "xmlns:stream='http://etherx.jabber.org/streams' "
1552                     "xmlns='jabber:client' to='%s' version='1.0'>", host);
1553                 seen = BIO_read(sbio,mbuf,BUFSIZZ);
1554                 mbuf[seen] = 0;
1555                 while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'"))
1556                         {
1557                         if (strstr(mbuf, "/stream:features>"))
1558                                 goto shut;
1559                         seen = BIO_read(sbio,mbuf,BUFSIZZ);
1560                         mbuf[seen] = 0;
1561                         }
1562                 BIO_printf(sbio, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
1563                 seen = BIO_read(sbio,sbuf,BUFSIZZ);
1564                 sbuf[seen] = 0;
1565                 if (!strstr(sbuf, "<proceed"))
1566                         goto shut;
1567                 mbuf[0] = 0;
1568                 }
1569
1570         for (;;)
1571                 {
1572                 FD_ZERO(&readfds);
1573                 FD_ZERO(&writefds);
1574
1575                 if ((SSL_version(con) == DTLS1_VERSION) &&
1576                         DTLSv1_get_timeout(con, &timeout))
1577                         timeoutp = &timeout;
1578                 else
1579                         timeoutp = NULL;
1580
1581                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
1582                         {
1583                         in_init=1;
1584                         tty_on=0;
1585                         }
1586                 else
1587                         {
1588                         tty_on=1;
1589                         if (in_init)
1590                                 {
1591                                 in_init=0;
1592 #if 0 /* This test doesn't really work as intended (needs to be fixed) */
1593 #ifndef OPENSSL_NO_TLSEXT
1594                                 if (servername != NULL && !SSL_session_reused(con))
1595                                         {
1596                                         BIO_printf(bio_c_out,"Server did %sacknowledge servername extension.\n",tlsextcbp.ack?"":"not ");
1597                                         }
1598 #endif
1599 #endif
1600                                 if (sess_out)
1601                                         {
1602                                         BIO *stmp = BIO_new_file(sess_out, "w");
1603                                         if (stmp)
1604                                                 {
1605                                                 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
1606                                                 BIO_free(stmp);
1607                                                 }
1608                                         else
1609                                                 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
1610                                         }
1611                                 print_stuff(bio_c_out,con,full_log);
1612                                 if (full_log > 0) full_log--;
1613
1614                                 if (starttls_proto)
1615                                         {
1616                                         BIO_printf(bio_err,"%s",mbuf);
1617                                         /* We don't need to know any more */
1618                                         starttls_proto = PROTO_OFF;
1619                                         }
1620
1621                                 if (reconnect)
1622                                         {
1623                                         reconnect--;
1624                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
1625                                         SSL_shutdown(con);
1626                                         SSL_set_connect_state(con);
1627                                         SHUTDOWN(SSL_get_fd(con));
1628                                         goto re_start;
1629                                         }
1630                                 }
1631                         }
1632
1633                 ssl_pending = read_ssl && SSL_pending(con);
1634
1635                 if (!ssl_pending)
1636                         {
1637 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined (OPENSSL_SYS_BEOS_R5)
1638                         if (tty_on)
1639                                 {
1640                                 if (read_tty)  openssl_fdset(fileno(stdin),&readfds);
1641                                 if (write_tty) openssl_fdset(fileno(stdout),&writefds);
1642                                 }
1643                         if (read_ssl)
1644                                 openssl_fdset(SSL_get_fd(con),&readfds);
1645                         if (write_ssl)
1646                                 openssl_fdset(SSL_get_fd(con),&writefds);
1647 #else
1648                         if(!tty_on || !write_tty) {
1649                                 if (read_ssl)
1650                                         openssl_fdset(SSL_get_fd(con),&readfds);
1651                                 if (write_ssl)
1652                                         openssl_fdset(SSL_get_fd(con),&writefds);
1653                         }
1654 #endif
1655 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
1656                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1657
1658                         /* Note: under VMS with SOCKETSHR the second parameter
1659                          * is currently of type (int *) whereas under other
1660                          * systems it is (void *) if you don't have a cast it
1661                          * will choke the compiler: if you do have a cast then
1662                          * you can either go for (int *) or (void *).
1663                          */
1664 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1665                         /* Under Windows/DOS we make the assumption that we can
1666                          * always write to the tty: therefore if we need to
1667                          * write to the tty we just fall through. Otherwise
1668                          * we timeout the select every second and see if there
1669                          * are any keypresses. Note: this is a hack, in a proper
1670                          * Windows application we wouldn't do this.
1671                          */
1672                         i=0;
1673                         if(!write_tty) {
1674                                 if(read_tty) {
1675                                         tv.tv_sec = 1;
1676                                         tv.tv_usec = 0;
1677                                         i=select(width,(void *)&readfds,(void *)&writefds,
1678                                                  NULL,&tv);
1679 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1680                                         if(!i && (!_kbhit() || !read_tty) ) continue;
1681 #else
1682                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
1683 #endif
1684                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1685                                          NULL,timeoutp);
1686                         }
1687 #elif defined(OPENSSL_SYS_NETWARE)
1688                         if(!write_tty) {
1689                                 if(read_tty) {
1690                                         tv.tv_sec = 1;
1691                                         tv.tv_usec = 0;
1692                                         i=select(width,(void *)&readfds,(void *)&writefds,
1693                                                 NULL,&tv);
1694                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1695                                         NULL,timeoutp);
1696                         }
1697 #elif defined(OPENSSL_SYS_BEOS_R5)
1698                         /* Under BeOS-R5 the situation is similar to DOS */
1699                         i=0;
1700                         stdin_set = 0;
1701                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
1702                         if(!write_tty) {
1703                                 if(read_tty) {
1704                                         tv.tv_sec = 1;
1705                                         tv.tv_usec = 0;
1706                                         i=select(width,(void *)&readfds,(void *)&writefds,
1707                                                  NULL,&tv);
1708                                         if (read(fileno(stdin), sbuf, 0) >= 0)
1709                                                 stdin_set = 1;
1710                                         if (!i && (stdin_set != 1 || !read_tty))
1711                                                 continue;
1712                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1713                                          NULL,timeoutp);
1714                         }
1715                         (void)fcntl(fileno(stdin), F_SETFL, 0);
1716 #else
1717                         i=select(width,(void *)&readfds,(void *)&writefds,
1718                                  NULL,timeoutp);
1719 #endif
1720                         if ( i < 0)
1721                                 {
1722                                 BIO_printf(bio_err,"bad select %d\n",
1723                                 get_last_socket_error());
1724                                 goto shut;
1725                                 /* goto end; */
1726                                 }
1727                         }
1728
1729                 if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
1730                         {
1731                         BIO_printf(bio_err,"TIMEOUT occured\n");
1732                         }
1733
1734                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
1735                         {
1736                         k=SSL_write(con,&(cbuf[cbuf_off]),
1737                                 (unsigned int)cbuf_len);
1738                         switch (SSL_get_error(con,k))
1739                                 {
1740                         case SSL_ERROR_NONE:
1741                                 cbuf_off+=k;
1742                                 cbuf_len-=k;
1743                                 if (k <= 0) goto end;
1744                                 /* we have done a  write(con,NULL,0); */
1745                                 if (cbuf_len <= 0)
1746                                         {
1747                                         read_tty=1;
1748                                         write_ssl=0;
1749                                         }
1750                                 else /* if (cbuf_len > 0) */
1751                                         {
1752                                         read_tty=0;
1753                                         write_ssl=1;
1754                                         }
1755                                 break;
1756                         case SSL_ERROR_WANT_WRITE:
1757                                 BIO_printf(bio_c_out,"write W BLOCK\n");
1758                                 write_ssl=1;
1759                                 read_tty=0;
1760                                 break;
1761                         case SSL_ERROR_WANT_READ:
1762                                 BIO_printf(bio_c_out,"write R BLOCK\n");
1763                                 write_tty=0;
1764                                 read_ssl=1;
1765                                 write_ssl=0;
1766                                 break;
1767                         case SSL_ERROR_WANT_X509_LOOKUP:
1768                                 BIO_printf(bio_c_out,"write X BLOCK\n");
1769                                 break;
1770                         case SSL_ERROR_ZERO_RETURN:
1771                                 if (cbuf_len != 0)
1772                                         {
1773                                         BIO_printf(bio_c_out,"shutdown\n");
1774                                         ret = 0;
1775                                         goto shut;
1776                                         }
1777                                 else
1778                                         {
1779                                         read_tty=1;
1780                                         write_ssl=0;
1781                                         break;
1782                                         }
1783
1784                         case SSL_ERROR_SYSCALL:
1785                                 if ((k != 0) || (cbuf_len != 0))
1786                                         {
1787                                         BIO_printf(bio_err,"write:errno=%d\n",
1788                                                 get_last_socket_error());
1789                                         goto shut;
1790                                         }
1791                                 else
1792                                         {
1793                                         read_tty=1;
1794                                         write_ssl=0;
1795                                         }
1796                                 break;
1797                         case SSL_ERROR_SSL:
1798                                 ERR_print_errors(bio_err);
1799                                 goto shut;
1800                                 }
1801                         }
1802 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
1803                 /* Assume Windows/DOS/BeOS can always write */
1804                 else if (!ssl_pending && write_tty)
1805 #else
1806                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
1807 #endif
1808                         {
1809 #ifdef CHARSET_EBCDIC
1810                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
1811 #endif
1812                         i=raw_write_stdout(&(sbuf[sbuf_off]),sbuf_len);
1813
1814                         if (i <= 0)
1815                                 {
1816                                 BIO_printf(bio_c_out,"DONE\n");
1817                                 ret = 0;
1818                                 goto shut;
1819                                 /* goto end; */
1820                                 }
1821
1822                         sbuf_len-=i;;
1823                         sbuf_off+=i;
1824                         if (sbuf_len <= 0)
1825                                 {
1826                                 read_ssl=1;
1827                                 write_tty=0;
1828                                 }
1829                         }
1830                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
1831                         {
1832 #ifdef RENEG
1833 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
1834 #endif
1835 #if 1
1836                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
1837 #else
1838 /* Demo for pending and peek :-) */
1839                         k=SSL_read(con,sbuf,16);
1840 { char zbuf[10240];
1841 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
1842 }
1843 #endif
1844
1845                         switch (SSL_get_error(con,k))
1846                                 {
1847                         case SSL_ERROR_NONE:
1848                                 if (k <= 0)
1849                                         goto end;
1850                                 sbuf_off=0;
1851                                 sbuf_len=k;
1852
1853                                 read_ssl=0;
1854                                 write_tty=1;
1855                                 break;
1856                         case SSL_ERROR_WANT_WRITE:
1857                                 BIO_printf(bio_c_out,"read W BLOCK\n");
1858                                 write_ssl=1;
1859                                 read_tty=0;
1860                                 break;
1861                         case SSL_ERROR_WANT_READ:
1862                                 BIO_printf(bio_c_out,"read R BLOCK\n");
1863                                 write_tty=0;
1864                                 read_ssl=1;
1865                                 if ((read_tty == 0) && (write_ssl == 0))
1866                                         write_ssl=1;
1867                                 break;
1868                         case SSL_ERROR_WANT_X509_LOOKUP:
1869                                 BIO_printf(bio_c_out,"read X BLOCK\n");
1870                                 break;
1871                         case SSL_ERROR_SYSCALL:
1872                                 ret=get_last_socket_error();
1873                                 BIO_printf(bio_err,"read:errno=%d\n",ret);
1874                                 goto shut;
1875                         case SSL_ERROR_ZERO_RETURN:
1876                                 BIO_printf(bio_c_out,"closed\n");
1877                                 ret=0;
1878                                 goto shut;
1879                         case SSL_ERROR_SSL:
1880                                 ERR_print_errors(bio_err);
1881                                 goto shut;
1882                                 /* break; */
1883                                 }
1884                         }
1885
1886 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1887 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1888                 else if (_kbhit())
1889 #else
1890                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
1891 #endif
1892 #elif defined (OPENSSL_SYS_NETWARE)
1893                 else if (_kbhit())
1894 #elif defined(OPENSSL_SYS_BEOS_R5)
1895                 else if (stdin_set)
1896 #else
1897                 else if (FD_ISSET(fileno(stdin),&readfds))
1898 #endif
1899                         {
1900                         if (crlf)
1901                                 {
1902                                 int j, lf_num;
1903
1904                                 i=raw_read_stdin(cbuf,BUFSIZZ/2);
1905                                 lf_num = 0;
1906                                 /* both loops are skipped when i <= 0 */
1907                                 for (j = 0; j < i; j++)
1908                                         if (cbuf[j] == '\n')
1909                                                 lf_num++;
1910                                 for (j = i-1; j >= 0; j--)
1911                                         {
1912                                         cbuf[j+lf_num] = cbuf[j];
1913                                         if (cbuf[j] == '\n')
1914                                                 {
1915                                                 lf_num--;
1916                                                 i++;
1917                                                 cbuf[j+lf_num] = '\r';
1918                                                 }
1919                                         }
1920                                 assert(lf_num == 0);
1921                                 }
1922                         else
1923                                 i=raw_read_stdin(cbuf,BUFSIZZ);
1924
1925                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
1926                                 {
1927                                 BIO_printf(bio_err,"DONE\n");
1928                                 ret=0;
1929                                 goto shut;
1930                                 }
1931
1932                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
1933                                 {
1934                                 BIO_printf(bio_err,"RENEGOTIATING\n");
1935                                 SSL_renegotiate(con);
1936                                 cbuf_len=0;
1937                                 }
1938 #ifndef OPENSSL_NO_HEARTBEATS
1939                         else if ((!c_ign_eof) && (cbuf[0] == 'B'))
1940                                 {
1941                                 BIO_printf(bio_err,"HEARTBEATING\n");
1942                                 SSL_heartbeat(con);
1943                                 cbuf_len=0;
1944                                 }
1945 #endif
1946                         else
1947                                 {
1948                                 cbuf_len=i;
1949                                 cbuf_off=0;
1950 #ifdef CHARSET_EBCDIC
1951                                 ebcdic2ascii(cbuf, cbuf, i);
1952 #endif
1953                                 }
1954
1955                         write_ssl=1;
1956                         read_tty=0;
1957                         }
1958                 }
1959
1960         ret=0;
1961 shut:
1962         if (in_init)
1963                 print_stuff(bio_c_out,con,full_log);
1964         SSL_shutdown(con);
1965         SHUTDOWN(SSL_get_fd(con));
1966 end:
1967         if (con != NULL)
1968                 {
1969                 if (prexit != 0)
1970                         print_stuff(bio_c_out,con,1);
1971                 SSL_free(con);
1972                 }
1973 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
1974         if (next_proto.data)
1975                 OPENSSL_free(next_proto.data);
1976 #endif
1977         if (ctx != NULL) SSL_CTX_free(ctx);
1978         if (cert)
1979                 X509_free(cert);
1980         if (key)
1981                 EVP_PKEY_free(key);
1982         if (pass)
1983                 OPENSSL_free(pass);
1984         ssl_excert_free(exc);
1985         if (vpm)
1986                 X509_VERIFY_PARAM_free(vpm);
1987         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
1988         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
1989         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
1990         if (bio_c_out != NULL)
1991                 {
1992                 BIO_free(bio_c_out);
1993                 bio_c_out=NULL;
1994                 }
1995         if (bio_c_msg != NULL)
1996                 {
1997                 BIO_free(bio_c_msg);
1998                 bio_c_msg=NULL;
1999                 }
2000         apps_shutdown();
2001         OPENSSL_EXIT(ret);
2002         }
2003
2004
2005 static void print_stuff(BIO *bio, SSL *s, int full)
2006         {
2007         X509 *peer=NULL;
2008         char *p;
2009         static const char *space="                ";
2010         char buf[BUFSIZ];
2011         STACK_OF(X509) *sk;
2012         STACK_OF(X509_NAME) *sk2;
2013         const SSL_CIPHER *c;
2014         X509_NAME *xn;
2015         int j,i;
2016 #ifndef OPENSSL_NO_COMP
2017         const COMP_METHOD *comp, *expansion;
2018 #endif
2019         unsigned char *exportedkeymat;
2020
2021         if (full)
2022                 {
2023                 int got_a_chain = 0;
2024
2025                 sk=SSL_get_peer_cert_chain(s);
2026                 if (sk != NULL)
2027                         {
2028                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
2029
2030                         BIO_printf(bio,"---\nCertificate chain\n");
2031                         for (i=0; i<sk_X509_num(sk); i++)
2032                                 {
2033                                 X509_NAME_oneline(X509_get_subject_name(
2034                                         sk_X509_value(sk,i)),buf,sizeof buf);
2035                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
2036                                 X509_NAME_oneline(X509_get_issuer_name(
2037                                         sk_X509_value(sk,i)),buf,sizeof buf);
2038                                 BIO_printf(bio,"   i:%s\n",buf);
2039                                 if (c_showcerts)
2040                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
2041                                 }
2042                         }
2043
2044                 BIO_printf(bio,"---\n");
2045                 peer=SSL_get_peer_certificate(s);
2046                 if (peer != NULL)
2047                         {
2048                         BIO_printf(bio,"Server certificate\n");
2049                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
2050                                 PEM_write_bio_X509(bio,peer);
2051                         X509_NAME_oneline(X509_get_subject_name(peer),
2052                                 buf,sizeof buf);
2053                         BIO_printf(bio,"subject=%s\n",buf);
2054                         X509_NAME_oneline(X509_get_issuer_name(peer),
2055                                 buf,sizeof buf);
2056                         BIO_printf(bio,"issuer=%s\n",buf);
2057                         }
2058                 else
2059                         BIO_printf(bio,"no peer certificate available\n");
2060
2061                 sk2=SSL_get_client_CA_list(s);
2062                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
2063                         {
2064                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
2065                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
2066                                 {
2067                                 xn=sk_X509_NAME_value(sk2,i);
2068                                 X509_NAME_oneline(xn,buf,sizeof(buf));
2069                                 BIO_write(bio,buf,strlen(buf));
2070                                 BIO_write(bio,"\n",1);
2071                                 }
2072                         }
2073                 else
2074                         {
2075                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
2076                         }
2077                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
2078                 if (p != NULL)
2079                         {
2080                         /* This works only for SSL 2.  In later protocol
2081                          * versions, the client does not know what other
2082                          * ciphers (in addition to the one to be used
2083                          * in the current connection) the server supports. */
2084
2085                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
2086                         j=i=0;
2087                         while (*p)
2088                                 {
2089                                 if (*p == ':')
2090                                         {
2091                                         BIO_write(bio,space,15-j%25);
2092                                         i++;
2093                                         j=0;
2094                                         BIO_write(bio,((i%3)?" ":"\n"),1);
2095                                         }
2096                                 else
2097                                         {
2098                                         BIO_write(bio,p,1);
2099                                         j++;
2100                                         }
2101                                 p++;
2102                                 }
2103                         BIO_write(bio,"\n",1);
2104                         }
2105
2106                 ssl_print_sigalgs(bio, s);
2107                 ssl_print_tmp_key(bio, s);
2108
2109                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
2110                         BIO_number_read(SSL_get_rbio(s)),
2111                         BIO_number_written(SSL_get_wbio(s)));
2112                 }
2113         BIO_printf(bio,(SSL_cache_hit(s)?"---\nReused, ":"---\nNew, "));
2114         c=SSL_get_current_cipher(s);
2115         BIO_printf(bio,"%s, Cipher is %s\n",
2116                 SSL_CIPHER_get_version(c),
2117                 SSL_CIPHER_get_name(c));
2118         if (peer != NULL) {
2119                 EVP_PKEY *pktmp;
2120                 pktmp = X509_get_pubkey(peer);
2121                 BIO_printf(bio,"Server public key is %d bit\n",
2122                                                          EVP_PKEY_bits(pktmp));
2123                 EVP_PKEY_free(pktmp);
2124         }
2125         BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
2126                         SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
2127 #ifndef OPENSSL_NO_COMP
2128         comp=SSL_get_current_compression(s);
2129         expansion=SSL_get_current_expansion(s);
2130         BIO_printf(bio,"Compression: %s\n",
2131                 comp ? SSL_COMP_get_name(comp) : "NONE");
2132         BIO_printf(bio,"Expansion: %s\n",
2133                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
2134 #endif
2135
2136 #ifdef SSL_DEBUG
2137         {
2138         /* Print out local port of connection: useful for debugging */
2139         int sock;
2140         struct sockaddr_in ladd;
2141         socklen_t ladd_size = sizeof(ladd);
2142         sock = SSL_get_fd(s);
2143         getsockname(sock, (struct sockaddr *)&ladd, &ladd_size);
2144         BIO_printf(bio_c_out, "LOCAL PORT is %u\n", ntohs(ladd.sin_port));
2145         }
2146 #endif
2147
2148 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2149         if (next_proto.status != -1) {
2150                 const unsigned char *proto;
2151                 unsigned int proto_len;
2152                 SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
2153                 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
2154                 BIO_write(bio, proto, proto_len);
2155                 BIO_write(bio, "\n", 1);
2156         }
2157 #endif
2158
2159         {
2160         SRTP_PROTECTION_PROFILE *srtp_profile=SSL_get_selected_srtp_profile(s);
2161
2162         if(srtp_profile)
2163                 BIO_printf(bio,"SRTP Extension negotiated, profile=%s\n",
2164                            srtp_profile->name);
2165         }
2166
2167         SSL_SESSION_print(bio,SSL_get_session(s));
2168         if (keymatexportlabel != NULL)
2169                 {
2170                 BIO_printf(bio, "Keying material exporter:\n");
2171                 BIO_printf(bio, "    Label: '%s'\n", keymatexportlabel);
2172                 BIO_printf(bio, "    Length: %i bytes\n", keymatexportlen);
2173                 exportedkeymat = OPENSSL_malloc(keymatexportlen);
2174                 if (exportedkeymat != NULL)
2175                         {
2176                         if (!SSL_export_keying_material(s, exportedkeymat,
2177                                                         keymatexportlen,
2178                                                         keymatexportlabel,
2179                                                         strlen(keymatexportlabel),
2180                                                         NULL, 0, 0))
2181                                 {
2182                                 BIO_printf(bio, "    Error\n");
2183                                 }
2184                         else
2185                                 {
2186                                 BIO_printf(bio, "    Keying material: ");
2187                                 for (i=0; i<keymatexportlen; i++)
2188                                         BIO_printf(bio, "%02X",
2189                                                    exportedkeymat[i]);
2190                                 BIO_printf(bio, "\n");
2191                                 }
2192                         OPENSSL_free(exportedkeymat);
2193                         }
2194                 }
2195         BIO_printf(bio,"---\n");
2196         if (peer != NULL)
2197                 X509_free(peer);
2198         /* flush, or debugging output gets mixed with http response */
2199         (void)BIO_flush(bio);
2200         }
2201
2202 #ifndef OPENSSL_NO_TLSEXT
2203
2204 static int ocsp_resp_cb(SSL *s, void *arg)
2205         {
2206         const unsigned char *p;
2207         int len;
2208         OCSP_RESPONSE *rsp;
2209         len = SSL_get_tlsext_status_ocsp_resp(s, &p);
2210         BIO_puts(arg, "OCSP response: ");
2211         if (!p)
2212                 {
2213                 BIO_puts(arg, "no response sent\n");
2214                 return 1;
2215                 }
2216         rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
2217         if (!rsp)
2218                 {
2219                 BIO_puts(arg, "response parse error\n");
2220                 BIO_dump_indent(arg, (char *)p, len, 4);
2221                 return 0;
2222                 }
2223         BIO_puts(arg, "\n======================================\n");
2224         OCSP_RESPONSE_print(arg, rsp, 0);
2225         BIO_puts(arg, "======================================\n");
2226         OCSP_RESPONSE_free(rsp);
2227         return 1;
2228         }
2229
2230 static int audit_proof_cb(SSL *s, void *arg)
2231         {
2232         const unsigned char *proof;
2233         size_t proof_len;
2234         size_t i;
2235         SSL_SESSION *sess = SSL_get_session(s);
2236
2237         proof = SSL_SESSION_get_tlsext_authz_server_audit_proof(sess,
2238                                                                 &proof_len);
2239         if (proof != NULL)
2240                 {
2241                 BIO_printf(bio_c_out, "Audit proof: ");
2242                 for (i = 0; i < proof_len; ++i)
2243                         BIO_printf(bio_c_out, "%02X", proof[i]);
2244                 BIO_printf(bio_c_out, "\n");
2245                 }
2246         else
2247                 {
2248                 BIO_printf(bio_c_out, "No audit proof found.\n");
2249                 }
2250         return 1;
2251         }
2252 #endif