apps/s_client.c

   1 /* apps/s_client.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58 /* ====================================================================
  59  * Copyright (c) 1998-2006 The OpenSSL Project.  All rights reserved.
  60  *
  61  * Redistribution and use in source and binary forms, with or without
  62  * modification, are permitted provided that the following conditions
  63  * are met:
  64  *
  65  * 1. Redistributions of source code must retain the above copyright
  66  *    notice, this list of conditions and the following disclaimer.
  67  *
  68  * 2. Redistributions in binary form must reproduce the above copyright
  69  *    notice, this list of conditions and the following disclaimer in
  70  *    the documentation and/or other materials provided with the
  71  *    distribution.
  72  *
  73  * 3. All advertising materials mentioning features or use of this
  74  *    software must display the following acknowledgment:
  75  *    "This product includes software developed by the OpenSSL Project
  76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  77  *
  78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  79  *    endorse or promote products derived from this software without
  80  *    prior written permission. For written permission, please contact
  81  *    openssl-core@openssl.org.
  82  *
  83  * 5. Products derived from this software may not be called "OpenSSL"
  84  *    nor may "OpenSSL" appear in their names without prior written
  85  *    permission of the OpenSSL Project.
  86  *
  87  * 6. Redistributions of any form whatsoever must retain the following
  88  *    acknowledgment:
  89  *    "This product includes software developed by the OpenSSL Project
  90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  91  *
  92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 103  * OF THE POSSIBILITY OF SUCH DAMAGE.
 104  * ====================================================================
 105  *
 106  * This product includes cryptographic software written by Eric Young
 107  * (eay@cryptsoft.com).  This product includes software written by Tim
 108  * Hudson (tjh@cryptsoft.com).
 109  *
 110  */
 111 /* ====================================================================
 112  * Copyright 2005 Nokia. All rights reserved.
 113  *
 114  * The portions of the attached software ("Contribution") is developed by
 115  * Nokia Corporation and is licensed pursuant to the OpenSSL open source
 116  * license.
 117  *
 118  * The Contribution, originally written by Mika Kousa and Pasi Eronen of
 119  * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
 120  * support (see RFC 4279) to OpenSSL.
 121  *
 122  * No patent licenses or other rights except those expressly stated in
 123  * the OpenSSL open source license shall be deemed granted or received
 124  * expressly, by implication, estoppel, or otherwise.
 125  *
 126  * No assurances are provided by Nokia that the Contribution does not
 127  * infringe the patent or other intellectual property rights of any third
 128  * party or that the license provides you with all the necessary rights
 129  * to make use of the Contribution.
 130  *
 131  * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
 132  * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
 133  * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
 134  * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
 135  * OTHERWISE.
 136  */
 137
 138 #include <assert.h>
 139 #include <ctype.h>
 140 #include <stdio.h>
 141 #include <stdlib.h>
 142 #include <string.h>
 143 #include <openssl/e_os2.h>
 144 #ifdef OPENSSL_NO_STDIO
 145 #define APPS_WIN16
 146 #endif
 147
 148 /* With IPv6, it looks like Digital has mixed up the proper order of
 149    recursive header file inclusion, resulting in the compiler complaining
 150    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
 151    is needed to have fileno() declared correctly...  So let's define u_int */
 152 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
 153 #define __U_INT
 154 typedef unsigned int u_int;
 155 #endif
 156
 157 #define USE_SOCKETS
 158 #include "apps.h"
 159 #include <openssl/x509.h>
 160 #include <openssl/ssl.h>
 161 #include <openssl/err.h>
 162 #include <openssl/pem.h>
 163 #include <openssl/rand.h>
 164 #include <openssl/ocsp.h>
 165 #include <openssl/bn.h>
 166 #ifndef OPENSSL_NO_SRP
 167 #include <openssl/srp.h>
 168 #endif
 169 #include "s_apps.h"
 170 #include "timeouts.h"
 171
 172 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 173 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 174 #undef FIONBIO
 175 #endif
 176
 177 #if defined(OPENSSL_SYS_BEOS_R5)
 178 #include <fcntl.h>
 179 #endif
 180
 181 #undef PROG
 182 #define PROG    s_client_main
 183
 184 /*#define SSL_HOST_NAME "www.netscape.com" */
 185 /*#define SSL_HOST_NAME "193.118.187.102" */
 186 #define SSL_HOST_NAME   "localhost"
 187
 188 /*#define TEST_CERT "client.pem" */ /* no default cert. */
 189
 190 #undef BUFSIZZ
 191 #define BUFSIZZ 1024*8
 192
 193 extern int verify_depth;
 194 extern int verify_error;
 195 extern int verify_return_error;
 196 extern int verify_quiet;
 197
 198 #ifdef FIONBIO
 199 static int c_nbio=0;
 200 #endif
 201 static int c_Pause=0;
 202 static int c_debug=0;
 203 #ifndef OPENSSL_NO_TLSEXT
 204 static int c_tlsextdebug=0;
 205 static int c_status_req=0;
 206 static int c_proof_debug=0;
 207 #endif
 208 static int c_msg=0;
 209 static int c_showcerts=0;
 210
 211 static char *keymatexportlabel=NULL;
 212 static int keymatexportlen=20;
 213
 214 static void sc_usage(void);
 215 static void print_stuff(BIO *berr,SSL *con,int full);
 216 #ifndef OPENSSL_NO_TLSEXT
 217 static int ocsp_resp_cb(SSL *s, void *arg);
 218 static int audit_proof_cb(SSL *s, void *arg);
 219 #endif
 220 static BIO *bio_c_out=NULL;
 221 static BIO *bio_c_msg=NULL;
 222 static int c_quiet=0;
 223 static int c_ign_eof=0;
 224 static int c_brief=0;
 225
 226 #ifndef OPENSSL_NO_PSK
 227 /* Default PSK identity and key */
 228 static char *psk_identity="Client_identity";
 229 /*char *psk_key=NULL;  by default PSK is not used */
 230
 231 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
 232         unsigned int max_identity_len, unsigned char *psk,
 233         unsigned int max_psk_len)
 234         {
 235         unsigned int psk_len = 0;
 236         int ret;
 237         BIGNUM *bn=NULL;
 238
 239         if (c_debug)
 240                 BIO_printf(bio_c_out, "psk_client_cb\n");
 241         if (!hint)
 242                 {
 243                 /* no ServerKeyExchange message*/
 244                 if (c_debug)
 245                         BIO_printf(bio_c_out,"NULL received PSK identity hint, continuing anyway\n");
 246                 }
 247         else if (c_debug)
 248                 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
 249
 250         /* lookup PSK identity and PSK key based on the given identity hint here */
 251         ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity);
 252         if (ret < 0 || (unsigned int)ret > max_identity_len)
 253                 goto out_err;
 254         if (c_debug)
 255                 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity, ret);
 256         ret=BN_hex2bn(&bn, psk_key);
 257         if (!ret)
 258                 {
 259                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
 260                 if (bn)
 261                         BN_free(bn);
 262                 return 0;
 263                 }
 264
 265         if ((unsigned int)BN_num_bytes(bn) > max_psk_len)
 266                 {
 267                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
 268                         max_psk_len, BN_num_bytes(bn));
 269                 BN_free(bn);
 270                 return 0;
 271                 }
 272
 273         psk_len=BN_bn2bin(bn, psk);
 274         BN_free(bn);
 275         if (psk_len == 0)
 276                 goto out_err;
 277
 278         if (c_debug)
 279                 BIO_printf(bio_c_out, "created PSK len=%d\n", psk_len);
 280
 281         return psk_len;
 282  out_err:
 283         if (c_debug)
 284                 BIO_printf(bio_err, "Error in PSK client callback\n");
 285         return 0;
 286         }
 287 #endif
 288
 289 static void sc_usage(void)
 290         {
 291         BIO_printf(bio_err,"usage: s_client args\n");
 292         BIO_printf(bio_err,"\n");
 293         BIO_printf(bio_err," -host host     - use -connect instead\n");
 294         BIO_printf(bio_err," -port port     - use -connect instead\n");
 295         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
 296         BIO_printf(bio_err," -checkhost host - check peer certificate matches \"host\"\n");
 297         BIO_printf(bio_err," -checkemail email - check peer certificate matches \"email\"\n");
 298         BIO_printf(bio_err," -checkip ipaddr - check peer certificate matches \"ipaddr\"\n");
 299
 300         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 301         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 302         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 303         BIO_printf(bio_err," -key arg      - Private key file to use, in cert file if\n");
 304         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 305         BIO_printf(bio_err," -keyform arg  - key format (PEM or DER) PEM default\n");
 306         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 307         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 308         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 309         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 310         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 311         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
 312         BIO_printf(bio_err," -debug        - extra output\n");
 313 #ifdef WATT32
 314         BIO_printf(bio_err," -wdebug       - WATT-32 tcp debugging\n");
 315 #endif
 316         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 317         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
 318         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
 319 #ifdef FIONBIO
 320         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 321 #endif
 322         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 323         BIO_printf(bio_err," -quiet        - no s_client output\n");
 324         BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
 325         BIO_printf(bio_err," -no_ign_eof   - don't ignore input eof\n");
 326 #ifndef OPENSSL_NO_PSK
 327         BIO_printf(bio_err," -psk_identity arg - PSK identity\n");
 328         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
 329 # ifndef OPENSSL_NO_JPAKE
 330         BIO_printf(bio_err," -jpake arg    - JPAKE secret to use\n");
 331 # endif
 332 #endif
 333 #ifndef OPENSSL_NO_SRP
 334         BIO_printf(bio_err," -srpuser user     - SRP authentification for 'user'\n");
 335         BIO_printf(bio_err," -srppass arg      - password for 'user'\n");
 336         BIO_printf(bio_err," -srp_lateuser     - SRP username into second ClientHello message\n");
 337         BIO_printf(bio_err," -srp_moregroups   - Tolerate other than the known g N values.\n");
 338         BIO_printf(bio_err," -srp_strength int - minimal mength in bits for N (default %d).\n",SRP_MINIMAL_N);
 339 #endif
 340         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 341         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 342         BIO_printf(bio_err," -tls1_2       - just use TLSv1.2\n");
 343         BIO_printf(bio_err," -tls1_1       - just use TLSv1.1\n");
 344         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 345         BIO_printf(bio_err," -dtls1        - just use DTLSv1\n");
 346         BIO_printf(bio_err," -mtu          - set the link layer MTU\n");
 347         BIO_printf(bio_err," -no_tls1_2/-no_tls1_1/-no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 348         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 349         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
 350         BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
 351         BIO_printf(bio_err,"                 command to see what is available\n");
 352         BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
 353         BIO_printf(bio_err,"                 for those protocols that support it, where\n");
 354         BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
 355         BIO_printf(bio_err,"                 only \"smtp\", \"pop3\", \"imap\", \"ftp\" and \"xmpp\"\n");
 356         BIO_printf(bio_err,"                 are supported.\n");
 357 #ifndef OPENSSL_NO_ENGINE
 358         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 359 #endif
 360         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 361         BIO_printf(bio_err," -sess_out arg - file to write SSL session to\n");
 362         BIO_printf(bio_err," -sess_in arg  - file to read SSL session from\n");
 363 #ifndef OPENSSL_NO_TLSEXT
 364         BIO_printf(bio_err," -servername host  - Set TLS extension servername in ClientHello\n");
 365         BIO_printf(bio_err," -tlsextdebug      - hex dump of all TLS extensions received\n");
 366         BIO_printf(bio_err," -status           - request certificate status from server\n");
 367         BIO_printf(bio_err," -no_ticket        - disable use of RFC4507bis session tickets\n");
 368         BIO_printf(bio_err," -proof_debug      - request an audit proof and print its hex dump\n");
 369 # ifndef OPENSSL_NO_NEXTPROTONEG
 370         BIO_printf(bio_err," -nextprotoneg arg - enable NPN extension, considering named protocols supported (comma-separated list)\n");
 371 # endif
 372 #endif
 373         BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
 374         BIO_printf(bio_err," -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
 375         BIO_printf(bio_err," -keymatexport label   - Export keying material using label\n");
 376         BIO_printf(bio_err," -keymatexportlen len  - Export len bytes of keying material (default 20)\n");
 377         }
 378
 379 #ifndef OPENSSL_NO_TLSEXT
 380
 381 /* This is a context that we pass to callbacks */
 382 typedef struct tlsextctx_st {
 383    BIO * biodebug;
 384    int ack;
 385 } tlsextctx;
 386
 387
 388 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 389         {
 390         tlsextctx * p = (tlsextctx *) arg;
 391         const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 392         if (SSL_get_servername_type(s) != -1)
 393                 p->ack = !SSL_session_reused(s) && hn != NULL;
 394         else
 395                 BIO_printf(bio_err,"Can't use SSL_get_servername\n");
 396
 397         return SSL_TLSEXT_ERR_OK;
 398         }
 399
 400 #ifndef OPENSSL_NO_SRP
 401
 402 /* This is a context that we pass to all callbacks */
 403 typedef struct srp_arg_st
 404         {
 405         char *srppassin;
 406         char *srplogin;
 407         int msg;   /* copy from c_msg */
 408         int debug; /* copy from c_debug */
 409         int amp;   /* allow more groups */
 410         int strength /* minimal size for N */ ;
 411         } SRP_ARG;
 412
 413 #define SRP_NUMBER_ITERATIONS_FOR_PRIME 64
 414
 415 static int srp_Verify_N_and_g(const BIGNUM *N, const BIGNUM *g)
 416         {
 417         BN_CTX *bn_ctx = BN_CTX_new();
 418         BIGNUM *p = BN_new();
 419         BIGNUM *r = BN_new();
 420         int ret =
 421                 g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) &&
 422                 BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) &&
 423                 p != NULL && BN_rshift1(p, N) &&
 424
 425                 /* p = (N-1)/2 */
 426                 BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) &&
 427                 r != NULL &&
 428
 429                 /* verify g^((N-1)/2) == -1 (mod N) */
 430                 BN_mod_exp(r, g, p, N, bn_ctx) &&
 431                 BN_add_word(r, 1) &&
 432                 BN_cmp(r, N) == 0;
 433
 434         if(r)
 435                 BN_free(r);
 436         if(p)
 437                 BN_free(p);
 438         if(bn_ctx)
 439                 BN_CTX_free(bn_ctx);
 440         return ret;
 441         }
 442
 443 /* This callback is used here for two purposes:
 444    - extended debugging
 445    - making some primality tests for unknown groups
 446    The callback is only called for a non default group.
 447
 448    An application does not need the call back at all if
 449    only the stanard groups are used.  In real life situations,
 450    client and server already share well known groups,
 451    thus there is no need to verify them.
 452    Furthermore, in case that a server actually proposes a group that
 453    is not one of those defined in RFC 5054, it is more appropriate
 454    to add the group to a static list and then compare since
 455    primality tests are rather cpu consuming.
 456 */
 457
 458 static int MS_CALLBACK ssl_srp_verify_param_cb(SSL *s, void *arg)
 459         {
 460         SRP_ARG *srp_arg = (SRP_ARG *)arg;
 461         BIGNUM *N = NULL, *g = NULL;
 462         if (!(N = SSL_get_srp_N(s)) || !(g = SSL_get_srp_g(s)))
 463                 return 0;
 464         if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1)
 465                 {
 466                 BIO_printf(bio_err, "SRP parameters:\n");
 467                 BIO_printf(bio_err,"\tN="); BN_print(bio_err,N);
 468                 BIO_printf(bio_err,"\n\tg="); BN_print(bio_err,g);
 469                 BIO_printf(bio_err,"\n");
 470                 }
 471
 472         if (SRP_check_known_gN_param(g,N))
 473                 return 1;
 474
 475         if (srp_arg->amp == 1)
 476                 {
 477                 if (srp_arg->debug)
 478                         BIO_printf(bio_err, "SRP param N and g are not known params, going to check deeper.\n");
 479
 480 /* The srp_moregroups is a real debugging feature.
 481    Implementors should rather add the value to the known ones.
 482    The minimal size has already been tested.
 483 */
 484                 if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N,g))
 485                         return 1;
 486                 }
 487         BIO_printf(bio_err, "SRP param N and g rejected.\n");
 488         return 0;
 489         }
 490
 491 #define PWD_STRLEN 1024
 492
 493 static char * MS_CALLBACK ssl_give_srp_client_pwd_cb(SSL *s, void *arg)
 494         {
 495         SRP_ARG *srp_arg = (SRP_ARG *)arg;
 496         char *pass = (char *)OPENSSL_malloc(PWD_STRLEN+1);
 497         PW_CB_DATA cb_tmp;
 498         int l;
 499
 500         cb_tmp.password = (char *)srp_arg->srppassin;
 501         cb_tmp.prompt_info = "SRP user";
 502         if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp))<0)
 503                 {
 504                 BIO_printf (bio_err, "Can't read Password\n");
 505                 OPENSSL_free(pass);
 506                 return NULL;
 507                 }
 508         *(pass+l)= '\0';
 509
 510         return pass;
 511         }
 512
 513 #endif
 514         char *srtp_profiles = NULL;
 515
 516 # ifndef OPENSSL_NO_NEXTPROTONEG
 517 /* This the context that we pass to next_proto_cb */
 518 typedef struct tlsextnextprotoctx_st {
 519         unsigned char *data;
 520         unsigned short len;
 521         int status;
 522 } tlsextnextprotoctx;
 523
 524 static tlsextnextprotoctx next_proto;
 525
 526 static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg)
 527         {
 528         tlsextnextprotoctx *ctx = arg;
 529
 530         if (!c_quiet)
 531                 {
 532                 /* We can assume that |in| is syntactically valid. */
 533                 unsigned i;
 534                 BIO_printf(bio_c_out, "Protocols advertised by server: ");
 535                 for (i = 0; i < inlen; )
 536                         {
 537                         if (i)
 538                                 BIO_write(bio_c_out, ", ", 2);
 539                         BIO_write(bio_c_out, &in[i + 1], in[i]);
 540                         i += in[i] + 1;
 541                         }
 542                 BIO_write(bio_c_out, "\n", 1);
 543                 }
 544
 545         ctx->status = SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
 546         return SSL_TLSEXT_ERR_OK;
 547         }
 548 # endif  /* ndef OPENSSL_NO_NEXTPROTONEG */
 549 #endif
 550
 551 enum
 552 {
 553         PROTO_OFF       = 0,
 554         PROTO_SMTP,
 555         PROTO_POP3,
 556         PROTO_IMAP,
 557         PROTO_FTP,
 558         PROTO_XMPP
 559 };
 560
 561 int MAIN(int, char **);
 562
 563 int MAIN(int argc, char **argv)
 564         {
 565         int build_chain = 0;
 566         SSL *con=NULL;
 567 #ifndef OPENSSL_NO_KRB5
 568         KSSL_CTX *kctx;
 569 #endif
 570         int s,k,width,state=0;
 571         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
 572         int cbuf_len,cbuf_off;
 573         int sbuf_len,sbuf_off;
 574         fd_set readfds,writefds;
 575         short port=PORT;
 576         int full_log=1;
 577         char *host=SSL_HOST_NAME;
 578         char *cert_file=NULL,*key_file=NULL;
 579         int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
 580         char *passarg = NULL, *pass = NULL;
 581         X509 *cert = NULL;
 582         EVP_PKEY *key = NULL;
 583         char *CApath=NULL,*CAfile=NULL;
 584         char *chCApath=NULL,*chCAfile=NULL;
 585         char *vfyCApath=NULL,*vfyCAfile=NULL;
 586         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE;
 587         int crlf=0;
 588         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 589         SSL_CTX *ctx=NULL;
 590         int ret=1,in_init=1,i,nbio_test=0;
 591         int starttls_proto = PROTO_OFF;
 592         int prexit = 0;
 593         X509_VERIFY_PARAM *vpm = NULL;
 594         int badarg = 0;
 595         const SSL_METHOD *meth=NULL;
 596         int socket_type=SOCK_STREAM;
 597         BIO *sbio;
 598         char *inrand=NULL;
 599         int mbuf_len=0;
 600         struct timeval timeout, *timeoutp;
 601 #ifndef OPENSSL_NO_ENGINE
 602         char *engine_id=NULL;
 603         char *ssl_client_engine_id=NULL;
 604         ENGINE *ssl_client_engine=NULL;
 605 #endif
 606         ENGINE *e=NULL;
 607 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
 608         struct timeval tv;
 609 #if defined(OPENSSL_SYS_BEOS_R5)
 610         int stdin_set = 0;
 611 #endif
 612 #endif
 613 #ifndef OPENSSL_NO_TLSEXT
 614         char *servername = NULL;
 615         tlsextctx tlsextcbp =
 616         {NULL,0};
 617 # ifndef OPENSSL_NO_NEXTPROTONEG
 618         const char *next_proto_neg_in = NULL;
 619 # endif
 620 #endif
 621         char *sess_in = NULL;
 622         char *sess_out = NULL;
 623         struct sockaddr peer;
 624         int peerlen = sizeof(peer);
 625         int enable_timeouts = 0 ;
 626         long socket_mtu = 0;
 627 #ifndef OPENSSL_NO_JPAKE
 628         char *jpake_secret = NULL;
 629 #endif
 630 #ifndef OPENSSL_NO_SRP
 631         char * srppass = NULL;
 632         int srp_lateuser = 0;
 633         SRP_ARG srp_arg = {NULL,NULL,0,0,0,1024};
 634 #endif
 635         SSL_EXCERT *exc = NULL;
 636
 637         unsigned char *checkhost = NULL, *checkemail = NULL;
 638         char *checkip = NULL;
 639         SSL_CONF_CTX *cctx = NULL;
 640         STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
 641
 642         meth=SSLv23_client_method();
 643
 644         apps_startup();
 645         c_Pause=0;
 646         c_quiet=0;
 647         c_ign_eof=0;
 648         c_debug=0;
 649         c_msg=0;
 650         c_showcerts=0;
 651
 652         if (bio_err == NULL)
 653                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 654
 655         if (!load_config(bio_err, NULL))
 656                 goto end;
 657         cctx = SSL_CONF_CTX_new();
 658         if (!cctx)
 659                 goto end;
 660         SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT);
 661         SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CMDLINE);
 662
 663         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 664                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 665                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
 666                 {
 667                 BIO_printf(bio_err,"out of memory\n");
 668                 goto end;
 669                 }
 670
 671         verify_depth=0;
 672         verify_error=X509_V_OK;
 673 #ifdef FIONBIO
 674         c_nbio=0;
 675 #endif
 676
 677         argc--;
 678         argv++;
 679         while (argc >= 1)
 680                 {
 681                 if      (strcmp(*argv,"-host") == 0)
 682                         {
 683                         if (--argc < 1) goto bad;
 684                         host= *(++argv);
 685                         }
 686                 else if (strcmp(*argv,"-port") == 0)
 687                         {
 688                         if (--argc < 1) goto bad;
 689                         port=atoi(*(++argv));
 690                         if (port == 0) goto bad;
 691                         }
 692                 else if (strcmp(*argv,"-connect") == 0)
 693                         {
 694                         if (--argc < 1) goto bad;
 695                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 696                                 goto bad;
 697                         }
 698                 else if (strcmp(*argv,"-verify") == 0)
 699                         {
 700                         verify=SSL_VERIFY_PEER;
 701                         if (--argc < 1) goto bad;
 702                         verify_depth=atoi(*(++argv));
 703                         if (!c_quiet)
 704                                 BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 705                         }
 706                 else if (strcmp(*argv,"-cert") == 0)
 707                         {
 708                         if (--argc < 1) goto bad;
 709                         cert_file= *(++argv);
 710                         }
 711                 else if (strcmp(*argv,"-sess_out") == 0)
 712                         {
 713                         if (--argc < 1) goto bad;
 714                         sess_out = *(++argv);
 715                         }
 716                 else if (strcmp(*argv,"-sess_in") == 0)
 717                         {
 718                         if (--argc < 1) goto bad;
 719                         sess_in = *(++argv);
 720                         }
 721                 else if (strcmp(*argv,"-certform") == 0)
 722                         {
 723                         if (--argc < 1) goto bad;
 724                         cert_format = str2fmt(*(++argv));
 725                         }
 726                 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm))
 727                         {
 728                         if (badarg)
 729                                 goto bad;
 730                         continue;
 731                         }
 732                 else if (strcmp(*argv,"-verify_return_error") == 0)
 733                         verify_return_error = 1;
 734                 else if (strcmp(*argv,"-verify_quiet") == 0)
 735                         verify_quiet = 1;
 736                 else if (strcmp(*argv,"-brief") == 0)
 737                         {
 738                         c_brief = 1;
 739                         verify_quiet = 1;
 740                         c_quiet = 1;
 741                         }
 742                 else if (args_excert(&argv, &argc, &badarg, bio_err, &exc))
 743                         {
 744                         if (badarg)
 745                                 goto bad;
 746                         continue;
 747                         }
 748                 else if (args_ssl(&argv, &argc, cctx, &badarg, bio_err, &ssl_args))
 749                         {
 750                         if (badarg)
 751                                 goto bad;
 752                         continue;
 753                         }
 754                 else if (strcmp(*argv,"-prexit") == 0)
 755                         prexit=1;
 756                 else if (strcmp(*argv,"-crlf") == 0)
 757                         crlf=1;
 758                 else if (strcmp(*argv,"-quiet") == 0)
 759                         {
 760                         c_quiet=1;
 761                         c_ign_eof=1;
 762                         }
 763                 else if (strcmp(*argv,"-ign_eof") == 0)
 764                         c_ign_eof=1;
 765                 else if (strcmp(*argv,"-no_ign_eof") == 0)
 766                         c_ign_eof=0;
 767                 else if (strcmp(*argv,"-pause") == 0)
 768                         c_Pause=1;
 769                 else if (strcmp(*argv,"-debug") == 0)
 770                         c_debug=1;
 771 #ifndef OPENSSL_NO_TLSEXT
 772                 else if (strcmp(*argv,"-tlsextdebug") == 0)
 773                         c_tlsextdebug=1;
 774                 else if (strcmp(*argv,"-status") == 0)
 775                         c_status_req=1;
 776                 else if (strcmp(*argv,"-proof_debug") == 0)
 777                         c_proof_debug=1;
 778 #endif
 779 #ifdef WATT32
 780                 else if (strcmp(*argv,"-wdebug") == 0)
 781                         dbug_init();
 782 #endif
 783                 else if (strcmp(*argv,"-msg") == 0)
 784                         c_msg=1;
 785                 else if (strcmp(*argv,"-msgfile") == 0)
 786                         {
 787                         if (--argc < 1) goto bad;
 788                         bio_c_msg = BIO_new_file(*(++argv), "w");
 789                         }
 790 #ifndef OPENSSL_NO_SSL_TRACE
 791                 else if (strcmp(*argv,"-trace") == 0)
 792                         c_msg=2;
 793 #endif
 794                 else if (strcmp(*argv,"-showcerts") == 0)
 795                         c_showcerts=1;
 796                 else if (strcmp(*argv,"-nbio_test") == 0)
 797                         nbio_test=1;
 798                 else if (strcmp(*argv,"-state") == 0)
 799                         state=1;
 800 #ifndef OPENSSL_NO_PSK
 801                 else if (strcmp(*argv,"-psk_identity") == 0)
 802                         {
 803                         if (--argc < 1) goto bad;
 804                         psk_identity=*(++argv);
 805                         }
 806                 else if (strcmp(*argv,"-psk") == 0)
 807                         {
 808                         size_t j;
 809
 810                         if (--argc < 1) goto bad;
 811                         psk_key=*(++argv);
 812                         for (j = 0; j < strlen(psk_key); j++)
 813                                 {
 814                                 if (isxdigit((unsigned char)psk_key[j]))
 815                                         continue;
 816                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
 817                                 goto bad;
 818                                 }
 819                         }
 820 #endif
 821 #ifndef OPENSSL_NO_SRP
 822                 else if (strcmp(*argv,"-srpuser") == 0)
 823                         {
 824                         if (--argc < 1) goto bad;
 825                         srp_arg.srplogin= *(++argv);
 826                         meth=TLSv1_client_method();
 827                         }
 828                 else if (strcmp(*argv,"-srppass") == 0)
 829                         {
 830                         if (--argc < 1) goto bad;
 831                         srppass= *(++argv);
 832                         meth=TLSv1_client_method();
 833                         }
 834                 else if (strcmp(*argv,"-srp_strength") == 0)
 835                         {
 836                         if (--argc < 1) goto bad;
 837                         srp_arg.strength=atoi(*(++argv));
 838                         BIO_printf(bio_err,"SRP minimal length for N is %d\n",srp_arg.strength);
 839                         meth=TLSv1_client_method();
 840                         }
 841                 else if (strcmp(*argv,"-srp_lateuser") == 0)
 842                         {
 843                         srp_lateuser= 1;
 844                         meth=TLSv1_client_method();
 845                         }
 846                 else if (strcmp(*argv,"-srp_moregroups") == 0)
 847                         {
 848                         srp_arg.amp=1;
 849                         meth=TLSv1_client_method();
 850                         }
 851 #endif
 852 #ifndef OPENSSL_NO_SSL2
 853                 else if (strcmp(*argv,"-ssl2") == 0)
 854                         meth=SSLv2_client_method();
 855 #endif
 856 #ifndef OPENSSL_NO_SSL3
 857                 else if (strcmp(*argv,"-ssl3") == 0)
 858                         meth=SSLv3_client_method();
 859 #endif
 860 #ifndef OPENSSL_NO_TLS1
 861                 else if (strcmp(*argv,"-tls1_2") == 0)
 862                         meth=TLSv1_2_client_method();
 863                 else if (strcmp(*argv,"-tls1_1") == 0)
 864                         meth=TLSv1_1_client_method();
 865                 else if (strcmp(*argv,"-tls1") == 0)
 866                         meth=TLSv1_client_method();
 867 #endif
 868 #ifndef OPENSSL_NO_DTLS1
 869                 else if (strcmp(*argv,"-dtls1") == 0)
 870                         {
 871                         meth=DTLSv1_client_method();
 872                         socket_type=SOCK_DGRAM;
 873                         }
 874                 else if (strcmp(*argv,"-timeout") == 0)
 875                         enable_timeouts=1;
 876                 else if (strcmp(*argv,"-mtu") == 0)
 877                         {
 878                         if (--argc < 1) goto bad;
 879                         socket_mtu = atol(*(++argv));
 880                         }
 881 #endif
 882                 else if (strcmp(*argv,"-keyform") == 0)
 883                         {
 884                         if (--argc < 1) goto bad;
 885                         key_format = str2fmt(*(++argv));
 886                         }
 887                 else if (strcmp(*argv,"-pass") == 0)
 888                         {
 889                         if (--argc < 1) goto bad;
 890                         passarg = *(++argv);
 891                         }
 892                 else if (strcmp(*argv,"-key") == 0)
 893                         {
 894                         if (--argc < 1) goto bad;
 895                         key_file= *(++argv);
 896                         }
 897                 else if (strcmp(*argv,"-reconnect") == 0)
 898                         {
 899                         reconnect=5;
 900                         }
 901                 else if (strcmp(*argv,"-CApath") == 0)
 902                         {
 903                         if (--argc < 1) goto bad;
 904                         CApath= *(++argv);
 905                         }
 906                 else if (strcmp(*argv,"-chainCApath") == 0)
 907                         {
 908                         if (--argc < 1) goto bad;
 909                         chCApath= *(++argv);
 910                         }
 911                 else if (strcmp(*argv,"-verifyCApath") == 0)
 912                         {
 913                         if (--argc < 1) goto bad;
 914                         vfyCApath= *(++argv);
 915                         }
 916                 else if (strcmp(*argv,"-build_chain") == 0)
 917                         build_chain = 1;
 918                 else if (strcmp(*argv,"-CAfile") == 0)
 919                         {
 920                         if (--argc < 1) goto bad;
 921                         CAfile= *(++argv);
 922                         }
 923                 else if (strcmp(*argv,"-chainCAfile") == 0)
 924                         {
 925                         if (--argc < 1) goto bad;
 926                         chCAfile= *(++argv);
 927                         }
 928                 else if (strcmp(*argv,"-verifyCAfile") == 0)
 929                         {
 930                         if (--argc < 1) goto bad;
 931                         vfyCAfile= *(++argv);
 932                         }
 933 #ifndef OPENSSL_NO_TLSEXT
 934 # ifndef OPENSSL_NO_NEXTPROTONEG
 935                 else if (strcmp(*argv,"-nextprotoneg") == 0)
 936                         {
 937                         if (--argc < 1) goto bad;
 938                         next_proto_neg_in = *(++argv);
 939                         }
 940 # endif
 941 #endif
 942 #ifdef FIONBIO
 943                 else if (strcmp(*argv,"-nbio") == 0)
 944                         { c_nbio=1; }
 945 #endif
 946                 else if (strcmp(*argv,"-starttls") == 0)
 947                         {
 948                         if (--argc < 1) goto bad;
 949                         ++argv;
 950                         if (strcmp(*argv,"smtp") == 0)
 951                                 starttls_proto = PROTO_SMTP;
 952                         else if (strcmp(*argv,"pop3") == 0)
 953                                 starttls_proto = PROTO_POP3;
 954                         else if (strcmp(*argv,"imap") == 0)
 955                                 starttls_proto = PROTO_IMAP;
 956                         else if (strcmp(*argv,"ftp") == 0)
 957                                 starttls_proto = PROTO_FTP;
 958                         else if (strcmp(*argv, "xmpp") == 0)
 959                                 starttls_proto = PROTO_XMPP;
 960                         else
 961                                 goto bad;
 962                         }
 963 #ifndef OPENSSL_NO_ENGINE
 964                 else if (strcmp(*argv,"-engine") == 0)
 965                         {
 966                         if (--argc < 1) goto bad;
 967                         engine_id = *(++argv);
 968                         }
 969                 else if (strcmp(*argv,"-ssl_client_engine") == 0)
 970                         {
 971                         if (--argc < 1) goto bad;
 972                         ssl_client_engine_id = *(++argv);
 973                         }
 974 #endif
 975                 else if (strcmp(*argv,"-rand") == 0)
 976                         {
 977                         if (--argc < 1) goto bad;
 978                         inrand= *(++argv);
 979                         }
 980 #ifndef OPENSSL_NO_TLSEXT
 981                 else if (strcmp(*argv,"-servername") == 0)
 982                         {
 983                         if (--argc < 1) goto bad;
 984                         servername= *(++argv);
 985                         /* meth=TLSv1_client_method(); */
 986                         }
 987 #endif
 988                 else if (strcmp(*argv,"-checkhost") == 0)
 989                         {
 990                         if (--argc < 1) goto bad;
 991                         checkhost=(unsigned char *)*(++argv);
 992                         }
 993                 else if (strcmp(*argv,"-checkemail") == 0)
 994                         {
 995                         if (--argc < 1) goto bad;
 996                         checkemail=(unsigned char *)*(++argv);
 997                         }
 998                 else if (strcmp(*argv,"-checkip") == 0)
 999                         {
1000                         if (--argc < 1) goto bad;
1001                         checkip=*(++argv);
1002                         }
1003 #ifndef OPENSSL_NO_JPAKE
1004                 else if (strcmp(*argv,"-jpake") == 0)
1005                         {
1006                         if (--argc < 1) goto bad;
1007                         jpake_secret = *++argv;
1008                         }
1009 #endif
1010                 else if (strcmp(*argv,"-use_srtp") == 0)
1011                         {
1012                         if (--argc < 1) goto bad;
1013                         srtp_profiles = *(++argv);
1014                         }
1015                 else if (strcmp(*argv,"-keymatexport") == 0)
1016                         {
1017                         if (--argc < 1) goto bad;
1018                         keymatexportlabel= *(++argv);
1019                         }
1020                 else if (strcmp(*argv,"-keymatexportlen") == 0)
1021                         {
1022                         if (--argc < 1) goto bad;
1023                         keymatexportlen=atoi(*(++argv));
1024                         if (keymatexportlen == 0) goto bad;
1025                         }
1026                 else
1027                         {
1028                         BIO_printf(bio_err,"unknown option %s\n",*argv);
1029                         badop=1;
1030                         break;
1031                         }
1032                 argc--;
1033                 argv++;
1034                 }
1035         if (badop)
1036                 {
1037 bad:
1038                 sc_usage();
1039                 goto end;
1040                 }
1041
1042 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1043         if (jpake_secret)
1044                 {
1045                 if (psk_key)
1046                         {
1047                         BIO_printf(bio_err,
1048                                    "Can't use JPAKE and PSK together\n");
1049                         goto end;
1050                         }
1051                 psk_identity = "JPAKE";
1052                 }
1053
1054         if (cipher)
1055                 {
1056                 BIO_printf(bio_err, "JPAKE sets cipher to PSK\n");
1057                 goto end;
1058                 }
1059         cipher = "PSK";
1060 #endif
1061
1062         OpenSSL_add_ssl_algorithms();
1063         SSL_load_error_strings();
1064
1065 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
1066         next_proto.status = -1;
1067         if (next_proto_neg_in)
1068                 {
1069                 next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in);
1070                 if (next_proto.data == NULL)
1071                         {
1072                         BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
1073                         goto end;
1074                         }
1075                 }
1076         else
1077                 next_proto.data = NULL;
1078 #endif
1079
1080 #ifndef OPENSSL_NO_ENGINE
1081         e = setup_engine(bio_err, engine_id, 1);
1082         if (ssl_client_engine_id)
1083                 {
1084                 ssl_client_engine = ENGINE_by_id(ssl_client_engine_id);
1085                 if (!ssl_client_engine)
1086                         {
1087                         BIO_printf(bio_err,
1088                                         "Error getting client auth engine\n");
1089                         goto end;
1090                         }
1091                 }
1092
1093 #endif
1094         if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
1095                 {
1096                 BIO_printf(bio_err, "Error getting password\n");
1097                 goto end;
1098                 }
1099
1100         if (key_file == NULL)
1101                 key_file = cert_file;
1102
1103
1104         if (key_file)
1105
1106                 {
1107
1108                 key = load_key(bio_err, key_file, key_format, 0, pass, e,
1109                                "client certificate private key file");
1110                 if (!key)
1111                         {
1112                         ERR_print_errors(bio_err);
1113                         goto end;
1114                         }
1115
1116                 }
1117
1118         if (cert_file)
1119
1120                 {
1121                 cert = load_cert(bio_err,cert_file,cert_format,
1122                                 NULL, e, "client certificate file");
1123
1124                 if (!cert)
1125                         {
1126                         ERR_print_errors(bio_err);
1127                         goto end;
1128                         }
1129                 }
1130
1131         if (!load_excert(&exc, bio_err))
1132                 goto end;
1133
1134         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1135                 && !RAND_status())
1136                 {
1137                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
1138                 }
1139         if (inrand != NULL)
1140                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
1141                         app_RAND_load_files(inrand));
1142
1143         if (bio_c_out == NULL)
1144                 {
1145                 if (c_quiet && !c_debug)
1146                         {
1147                         bio_c_out=BIO_new(BIO_s_null());
1148                         if (c_msg && !bio_c_msg)
1149                                 bio_c_msg=BIO_new_fp(stdout,BIO_NOCLOSE);
1150                         }
1151                 else
1152                         {
1153                         if (bio_c_out == NULL)
1154                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
1155                         }
1156                 }
1157
1158 #ifndef OPENSSL_NO_SRP
1159         if(!app_passwd(bio_err, srppass, NULL, &srp_arg.srppassin, NULL))
1160                 {
1161                 BIO_printf(bio_err, "Error getting password\n");
1162                 goto end;
1163                 }
1164 #endif
1165
1166         ctx=SSL_CTX_new(meth);
1167         if (ctx == NULL)
1168                 {
1169                 ERR_print_errors(bio_err);
1170                 goto end;
1171                 }
1172
1173         if (vpm)
1174                 SSL_CTX_set1_param(ctx, vpm);
1175
1176         if (!args_ssl_call(ctx, bio_err, cctx, ssl_args, 1))
1177                 {
1178                 ERR_print_errors(bio_err);
1179                 goto end;
1180                 }
1181
1182         if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile))
1183                 {
1184                 BIO_printf(bio_err, "Error loading store locations\n");
1185                 ERR_print_errors(bio_err);
1186                 goto end;
1187                 }
1188
1189 #ifndef OPENSSL_NO_ENGINE
1190         if (ssl_client_engine)
1191                 {
1192                 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine))
1193                         {
1194                         BIO_puts(bio_err, "Error setting client auth engine\n");
1195                         ERR_print_errors(bio_err);
1196                         ENGINE_free(ssl_client_engine);
1197                         goto end;
1198                         }
1199                 ENGINE_free(ssl_client_engine);
1200                 }
1201 #endif
1202
1203 #ifndef OPENSSL_NO_PSK
1204 #ifdef OPENSSL_NO_JPAKE
1205         if (psk_key != NULL)
1206 #else
1207         if (psk_key != NULL || jpake_secret)
1208 #endif
1209                 {
1210                 if (c_debug)
1211                         BIO_printf(bio_c_out, "PSK key given or JPAKE in use, setting client callback\n");
1212                 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1213                 }
1214         if (srtp_profiles != NULL)
1215                 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
1216 #endif
1217         if (exc) ssl_ctx_set_excert(ctx, exc);
1218         /* DTLS: partial reads end up discarding unread UDP bytes :-(
1219          * Setting read ahead solves this problem.
1220          */
1221         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1222
1223 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
1224         if (next_proto.data)
1225                 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
1226 #endif
1227
1228         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1229 #if 0
1230         else
1231                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
1232 #endif
1233
1234         SSL_CTX_set_verify(ctx,verify,verify_callback);
1235
1236         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1237                 (!SSL_CTX_set_default_verify_paths(ctx)))
1238                 {
1239                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
1240                 ERR_print_errors(bio_err);
1241                 /* goto end; */
1242                 }
1243
1244         if (!set_cert_key_stuff(ctx,cert,key, NULL, build_chain))
1245                 goto end;
1246
1247 #ifndef OPENSSL_NO_TLSEXT
1248         if (servername != NULL)
1249                 {
1250                 tlsextcbp.biodebug = bio_err;
1251                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1252                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1253                 }
1254 #ifndef OPENSSL_NO_SRP
1255         if (srp_arg.srplogin)
1256                 {
1257                 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin))
1258                         {
1259                         BIO_printf(bio_err,"Unable to set SRP username\n");
1260                         goto end;
1261                         }
1262                 srp_arg.msg = c_msg;
1263                 srp_arg.debug = c_debug ;
1264                 SSL_CTX_set_srp_cb_arg(ctx,&srp_arg);
1265                 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb);
1266                 SSL_CTX_set_srp_strength(ctx, srp_arg.strength);
1267                 if (c_msg || c_debug || srp_arg.amp == 0)
1268                         SSL_CTX_set_srp_verify_param_callback(ctx, ssl_srp_verify_param_cb);
1269                 }
1270
1271 #endif
1272         if (c_proof_debug)
1273                 SSL_CTX_set_tlsext_authz_server_audit_proof_cb(ctx,
1274                                                                audit_proof_cb);
1275 #endif
1276
1277         con=SSL_new(ctx);
1278         if (sess_in)
1279                 {
1280                 SSL_SESSION *sess;
1281                 BIO *stmp = BIO_new_file(sess_in, "r");
1282                 if (!stmp)
1283                         {
1284                         BIO_printf(bio_err, "Can't open session file %s\n",
1285                                                 sess_in);
1286                         ERR_print_errors(bio_err);
1287                         goto end;
1288                         }
1289                 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1290                 BIO_free(stmp);
1291                 if (!sess)
1292                         {
1293                         BIO_printf(bio_err, "Can't open session file %s\n",
1294                                                 sess_in);
1295                         ERR_print_errors(bio_err);
1296                         goto end;
1297                         }
1298                 SSL_set_session(con, sess);
1299                 SSL_SESSION_free(sess);
1300                 }
1301 #ifndef OPENSSL_NO_TLSEXT
1302         if (servername != NULL)
1303                 {
1304                 if (!SSL_set_tlsext_host_name(con,servername))
1305                         {
1306                         BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
1307                         ERR_print_errors(bio_err);
1308                         goto end;
1309                         }
1310                 }
1311 #endif
1312 #ifndef OPENSSL_NO_KRB5
1313         if (con  &&  (kctx = kssl_ctx_new()) != NULL)
1314                 {
1315                 SSL_set0_kssl_ctx(con, kctx);
1316                 kssl_ctx_setstring(kctx, KSSL_SERVER, host);
1317                 }
1318 #endif  /* OPENSSL_NO_KRB5  */
1319 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
1320 #if 0
1321 #ifdef TLSEXT_TYPE_opaque_prf_input
1322         SSL_set_tlsext_opaque_prf_input(con, "Test client", 11);
1323 #endif
1324 #endif
1325
1326 re_start:
1327
1328         if (init_client(&s,host,port,socket_type) == 0)
1329                 {
1330                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
1331                 SHUTDOWN(s);
1332                 goto end;
1333                 }
1334         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
1335
1336 #ifdef FIONBIO
1337         if (c_nbio)
1338                 {
1339                 unsigned long l=1;
1340                 BIO_printf(bio_c_out,"turning on non blocking io\n");
1341                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
1342                         {
1343                         ERR_print_errors(bio_err);
1344                         goto end;
1345                         }
1346                 }
1347 #endif
1348         if (c_Pause & 0x01) SSL_set_debug(con, 1);
1349
1350         if ( SSL_version(con) == DTLS1_VERSION)
1351                 {
1352
1353                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
1354                 if (getsockname(s, &peer, (void *)&peerlen) < 0)
1355                         {
1356                         BIO_printf(bio_err, "getsockname:errno=%d\n",
1357                                 get_last_socket_error());
1358                         SHUTDOWN(s);
1359                         goto end;
1360                         }
1361
1362                 (void)BIO_ctrl_set_connected(sbio, 1, &peer);
1363
1364                 if (enable_timeouts)
1365                         {
1366                         timeout.tv_sec = 0;
1367                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
1368                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
1369
1370                         timeout.tv_sec = 0;
1371                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
1372                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
1373                         }
1374
1375                 if (socket_mtu > 28)
1376                         {
1377                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
1378                         SSL_set_mtu(con, socket_mtu - 28);
1379                         }
1380                 else
1381                         /* want to do MTU discovery */
1382                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
1383                 }
1384         else
1385                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
1386
1387         if (nbio_test)
1388                 {
1389                 BIO *test;
1390
1391                 test=BIO_new(BIO_f_nbio_test());
1392                 sbio=BIO_push(test,sbio);
1393                 }
1394
1395         if (c_debug)
1396                 {
1397                 SSL_set_debug(con, 1);
1398                 BIO_set_callback(sbio,bio_dump_callback);
1399                 BIO_set_callback_arg(sbio,(char *)bio_c_out);
1400                 }
1401         if (c_msg)
1402                 {
1403 #ifndef OPENSSL_NO_SSL_TRACE
1404                 if (c_msg == 2)
1405                         SSL_set_msg_callback(con, SSL_trace);
1406                 else
1407 #endif
1408                         SSL_set_msg_callback(con, msg_cb);
1409                 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out);
1410                 }
1411 #ifndef OPENSSL_NO_TLSEXT
1412         if (c_tlsextdebug)
1413                 {
1414                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1415                 SSL_set_tlsext_debug_arg(con, bio_c_out);
1416                 }
1417         if (c_status_req)
1418                 {
1419                 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
1420                 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
1421                 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
1422 #if 0
1423 {
1424 STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null();
1425 OCSP_RESPID *id = OCSP_RESPID_new();
1426 id->value.byKey = ASN1_OCTET_STRING_new();
1427 id->type = V_OCSP_RESPID_KEY;
1428 ASN1_STRING_set(id->value.byKey, "Hello World", -1);
1429 sk_OCSP_RESPID_push(ids, id);
1430 SSL_set_tlsext_status_ids(con, ids);
1431 }
1432 #endif
1433                 }
1434 #endif
1435 #ifndef OPENSSL_NO_JPAKE
1436         if (jpake_secret)
1437                 jpake_client_auth(bio_c_out, sbio, jpake_secret);
1438 #endif
1439
1440         SSL_set_bio(con,sbio,sbio);
1441         SSL_set_connect_state(con);
1442
1443         /* ok, lets connect */
1444         width=SSL_get_fd(con)+1;
1445
1446         read_tty=1;
1447         write_tty=0;
1448         tty_on=0;
1449         read_ssl=1;
1450         write_ssl=1;
1451
1452         cbuf_len=0;
1453         cbuf_off=0;
1454         sbuf_len=0;
1455         sbuf_off=0;
1456
1457         /* This is an ugly hack that does a lot of assumptions */
1458         /* We do have to handle multi-line responses which may come
1459            in a single packet or not. We therefore have to use
1460            BIO_gets() which does need a buffering BIO. So during
1461            the initial chitchat we do push a buffering BIO into the
1462            chain that is removed again later on to not disturb the
1463            rest of the s_client operation. */
1464         if (starttls_proto == PROTO_SMTP)
1465                 {
1466                 int foundit=0;
1467                 BIO *fbio = BIO_new(BIO_f_buffer());
1468                 BIO_push(fbio, sbio);
1469                 /* wait for multi-line response to end from SMTP */
1470                 do
1471                         {
1472                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1473                         }
1474                 while (mbuf_len>3 && mbuf[3]=='-');
1475                 /* STARTTLS command requires EHLO... */
1476                 BIO_printf(fbio,"EHLO openssl.client.net\r\n");
1477                 (void)BIO_flush(fbio);
1478                 /* wait for multi-line response to end EHLO SMTP response */
1479                 do
1480                         {
1481                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1482                         if (strstr(mbuf,"STARTTLS"))
1483                                 foundit=1;
1484                         }
1485                 while (mbuf_len>3 && mbuf[3]=='-');
1486                 (void)BIO_flush(fbio);
1487                 BIO_pop(fbio);
1488                 BIO_free(fbio);
1489                 if (!foundit)
1490                         BIO_printf(bio_err,
1491                                    "didn't found starttls in server response,"
1492                                    " try anyway...\n");
1493                 BIO_printf(sbio,"STARTTLS\r\n");
1494                 BIO_read(sbio,sbuf,BUFSIZZ);
1495                 }
1496         else if (starttls_proto == PROTO_POP3)
1497                 {
1498                 BIO_read(sbio,mbuf,BUFSIZZ);
1499                 BIO_printf(sbio,"STLS\r\n");
1500                 BIO_read(sbio,sbuf,BUFSIZZ);
1501                 }
1502         else if (starttls_proto == PROTO_IMAP)
1503                 {
1504                 int foundit=0;
1505                 BIO *fbio = BIO_new(BIO_f_buffer());
1506                 BIO_push(fbio, sbio);
1507                 BIO_gets(fbio,mbuf,BUFSIZZ);
1508                 /* STARTTLS command requires CAPABILITY... */
1509                 BIO_printf(fbio,". CAPABILITY\r\n");
1510                 (void)BIO_flush(fbio);
1511                 /* wait for multi-line CAPABILITY response */
1512                 do
1513                         {
1514                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1515                         if (strstr(mbuf,"STARTTLS"))
1516                                 foundit=1;
1517                         }
1518                 while (mbuf_len>3 && mbuf[0]!='.');
1519                 (void)BIO_flush(fbio);
1520                 BIO_pop(fbio);
1521                 BIO_free(fbio);
1522                 if (!foundit)
1523                         BIO_printf(bio_err,
1524                                    "didn't found STARTTLS in server response,"
1525                                    " try anyway...\n");
1526                 BIO_printf(sbio,". STARTTLS\r\n");
1527                 BIO_read(sbio,sbuf,BUFSIZZ);
1528                 }
1529         else if (starttls_proto == PROTO_FTP)
1530                 {
1531                 BIO *fbio = BIO_new(BIO_f_buffer());
1532                 BIO_push(fbio, sbio);
1533                 /* wait for multi-line response to end from FTP */
1534                 do
1535                         {
1536                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1537                         }
1538                 while (mbuf_len>3 && mbuf[3]=='-');
1539                 (void)BIO_flush(fbio);
1540                 BIO_pop(fbio);
1541                 BIO_free(fbio);
1542                 BIO_printf(sbio,"AUTH TLS\r\n");
1543                 BIO_read(sbio,sbuf,BUFSIZZ);
1544                 }
1545         if (starttls_proto == PROTO_XMPP)
1546                 {
1547                 int seen = 0;
1548                 BIO_printf(sbio,"<stream:stream "
1549                     "xmlns:stream='http://etherx.jabber.org/streams' "
1550                     "xmlns='jabber:client' to='%s' version='1.0'>", host);
1551                 seen = BIO_read(sbio,mbuf,BUFSIZZ);
1552                 mbuf[seen] = 0;
1553                 while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'"))
1554                         {
1555                         if (strstr(mbuf, "/stream:features>"))
1556                                 goto shut;
1557                         seen = BIO_read(sbio,mbuf,BUFSIZZ);
1558                         mbuf[seen] = 0;
1559                         }
1560                 BIO_printf(sbio, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
1561                 seen = BIO_read(sbio,sbuf,BUFSIZZ);
1562                 sbuf[seen] = 0;
1563                 if (!strstr(sbuf, "<proceed"))
1564                         goto shut;
1565                 mbuf[0] = 0;
1566                 }
1567
1568         for (;;)
1569                 {
1570                 FD_ZERO(&readfds);
1571                 FD_ZERO(&writefds);
1572
1573                 if ((SSL_version(con) == DTLS1_VERSION) &&
1574                         DTLSv1_get_timeout(con, &timeout))
1575                         timeoutp = &timeout;
1576                 else
1577                         timeoutp = NULL;
1578
1579                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
1580                         {
1581                         in_init=1;
1582                         tty_on=0;
1583                         }
1584                 else
1585                         {
1586                         tty_on=1;
1587                         if (in_init)
1588                                 {
1589                                 in_init=0;
1590 #if 0 /* This test doesn't really work as intended (needs to be fixed) */
1591 #ifndef OPENSSL_NO_TLSEXT
1592                                 if (servername != NULL && !SSL_session_reused(con))
1593                                         {
1594                                         BIO_printf(bio_c_out,"Server did %sacknowledge servername extension.\n",tlsextcbp.ack?"":"not ");
1595                                         }
1596 #endif
1597 #endif
1598                                 if (sess_out)
1599                                         {
1600                                         BIO *stmp = BIO_new_file(sess_out, "w");
1601                                         if (stmp)
1602                                                 {
1603                                                 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
1604                                                 BIO_free(stmp);
1605                                                 }
1606                                         else
1607                                                 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
1608                                         }
1609                                 if (c_brief)
1610                                         {
1611                                         BIO_puts(bio_err,
1612                                                 "CONNECTION ESTABLISHED\n");
1613                                         print_ssl_summary(bio_err, con);
1614                                         }
1615                                 print_ssl_cert_checks(bio_err, con, checkhost,
1616                                                         checkemail, checkip);
1617                                 print_stuff(bio_c_out,con,full_log);
1618                                 if (full_log > 0) full_log--;
1619
1620                                 if (starttls_proto)
1621                                         {
1622                                         BIO_printf(bio_err,"%s",mbuf);
1623                                         /* We don't need to know any more */
1624                                         starttls_proto = PROTO_OFF;
1625                                         }
1626
1627                                 if (reconnect)
1628                                         {
1629                                         reconnect--;
1630                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
1631                                         SSL_shutdown(con);
1632                                         SSL_set_connect_state(con);
1633                                         SHUTDOWN(SSL_get_fd(con));
1634                                         goto re_start;
1635                                         }
1636                                 }
1637                         }
1638
1639                 ssl_pending = read_ssl && SSL_pending(con);
1640
1641                 if (!ssl_pending)
1642                         {
1643 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined (OPENSSL_SYS_BEOS_R5)
1644                         if (tty_on)
1645                                 {
1646                                 if (read_tty)  openssl_fdset(fileno(stdin),&readfds);
1647                                 if (write_tty) openssl_fdset(fileno(stdout),&writefds);
1648                                 }
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 #else
1654                         if(!tty_on || !write_tty) {
1655                                 if (read_ssl)
1656                                         openssl_fdset(SSL_get_fd(con),&readfds);
1657                                 if (write_ssl)
1658                                         openssl_fdset(SSL_get_fd(con),&writefds);
1659                         }
1660 #endif
1661 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
1662                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1663
1664                         /* Note: under VMS with SOCKETSHR the second parameter
1665                          * is currently of type (int *) whereas under other
1666                          * systems it is (void *) if you don't have a cast it
1667                          * will choke the compiler: if you do have a cast then
1668                          * you can either go for (int *) or (void *).
1669                          */
1670 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1671                         /* Under Windows/DOS we make the assumption that we can
1672                          * always write to the tty: therefore if we need to
1673                          * write to the tty we just fall through. Otherwise
1674                          * we timeout the select every second and see if there
1675                          * are any keypresses. Note: this is a hack, in a proper
1676                          * Windows application we wouldn't do this.
1677                          */
1678                         i=0;
1679                         if(!write_tty) {
1680                                 if(read_tty) {
1681                                         tv.tv_sec = 1;
1682                                         tv.tv_usec = 0;
1683                                         i=select(width,(void *)&readfds,(void *)&writefds,
1684                                                  NULL,&tv);
1685 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1686                                         if(!i && (!_kbhit() || !read_tty) ) continue;
1687 #else
1688                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
1689 #endif
1690                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1691                                          NULL,timeoutp);
1692                         }
1693 #elif defined(OPENSSL_SYS_NETWARE)
1694                         if(!write_tty) {
1695                                 if(read_tty) {
1696                                         tv.tv_sec = 1;
1697                                         tv.tv_usec = 0;
1698                                         i=select(width,(void *)&readfds,(void *)&writefds,
1699                                                 NULL,&tv);
1700                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1701                                         NULL,timeoutp);
1702                         }
1703 #elif defined(OPENSSL_SYS_BEOS_R5)
1704                         /* Under BeOS-R5 the situation is similar to DOS */
1705                         i=0;
1706                         stdin_set = 0;
1707                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
1708                         if(!write_tty) {
1709                                 if(read_tty) {
1710                                         tv.tv_sec = 1;
1711                                         tv.tv_usec = 0;
1712                                         i=select(width,(void *)&readfds,(void *)&writefds,
1713                                                  NULL,&tv);
1714                                         if (read(fileno(stdin), sbuf, 0) >= 0)
1715                                                 stdin_set = 1;
1716                                         if (!i && (stdin_set != 1 || !read_tty))
1717                                                 continue;
1718                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1719                                          NULL,timeoutp);
1720                         }
1721                         (void)fcntl(fileno(stdin), F_SETFL, 0);
1722 #else
1723                         i=select(width,(void *)&readfds,(void *)&writefds,
1724                                  NULL,timeoutp);
1725 #endif
1726                         if ( i < 0)
1727                                 {
1728                                 BIO_printf(bio_err,"bad select %d\n",
1729                                 get_last_socket_error());
1730                                 goto shut;
1731                                 /* goto end; */
1732                                 }
1733                         }
1734
1735                 if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
1736                         {
1737                         BIO_printf(bio_err,"TIMEOUT occured\n");
1738                         }
1739
1740                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
1741                         {
1742                         k=SSL_write(con,&(cbuf[cbuf_off]),
1743                                 (unsigned int)cbuf_len);
1744                         switch (SSL_get_error(con,k))
1745                                 {
1746                         case SSL_ERROR_NONE:
1747                                 cbuf_off+=k;
1748                                 cbuf_len-=k;
1749                                 if (k <= 0) goto end;
1750                                 /* we have done a  write(con,NULL,0); */
1751                                 if (cbuf_len <= 0)
1752                                         {
1753                                         read_tty=1;
1754                                         write_ssl=0;
1755                                         }
1756                                 else /* if (cbuf_len > 0) */
1757                                         {
1758                                         read_tty=0;
1759                                         write_ssl=1;
1760                                         }
1761                                 break;
1762                         case SSL_ERROR_WANT_WRITE:
1763                                 BIO_printf(bio_c_out,"write W BLOCK\n");
1764                                 write_ssl=1;
1765                                 read_tty=0;
1766                                 break;
1767                         case SSL_ERROR_WANT_READ:
1768                                 BIO_printf(bio_c_out,"write R BLOCK\n");
1769                                 write_tty=0;
1770                                 read_ssl=1;
1771                                 write_ssl=0;
1772                                 break;
1773                         case SSL_ERROR_WANT_X509_LOOKUP:
1774                                 BIO_printf(bio_c_out,"write X BLOCK\n");
1775                                 break;
1776                         case SSL_ERROR_ZERO_RETURN:
1777                                 if (cbuf_len != 0)
1778                                         {
1779                                         BIO_printf(bio_c_out,"shutdown\n");
1780                                         ret = 0;
1781                                         goto shut;
1782                                         }
1783                                 else
1784                                         {
1785                                         read_tty=1;
1786                                         write_ssl=0;
1787                                         break;
1788                                         }
1789
1790                         case SSL_ERROR_SYSCALL:
1791                                 if ((k != 0) || (cbuf_len != 0))
1792                                         {
1793                                         BIO_printf(bio_err,"write:errno=%d\n",
1794                                                 get_last_socket_error());
1795                                         goto shut;
1796                                         }
1797                                 else
1798                                         {
1799                                         read_tty=1;
1800                                         write_ssl=0;
1801                                         }
1802                                 break;
1803                         case SSL_ERROR_SSL:
1804                                 ERR_print_errors(bio_err);
1805                                 goto shut;
1806                                 }
1807                         }
1808 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
1809                 /* Assume Windows/DOS/BeOS can always write */
1810                 else if (!ssl_pending && write_tty)
1811 #else
1812                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
1813 #endif
1814                         {
1815 #ifdef CHARSET_EBCDIC
1816                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
1817 #endif
1818                         i=raw_write_stdout(&(sbuf[sbuf_off]),sbuf_len);
1819
1820                         if (i <= 0)
1821                                 {
1822                                 BIO_printf(bio_c_out,"DONE\n");
1823                                 ret = 0;
1824                                 goto shut;
1825                                 /* goto end; */
1826                                 }
1827
1828                         sbuf_len-=i;;
1829                         sbuf_off+=i;
1830                         if (sbuf_len <= 0)
1831                                 {
1832                                 read_ssl=1;
1833                                 write_tty=0;
1834                                 }
1835                         }
1836                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
1837                         {
1838 #ifdef RENEG
1839 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
1840 #endif
1841 #if 1
1842                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
1843 #else
1844 /* Demo for pending and peek :-) */
1845                         k=SSL_read(con,sbuf,16);
1846 { char zbuf[10240];
1847 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
1848 }
1849 #endif
1850
1851                         switch (SSL_get_error(con,k))
1852                                 {
1853                         case SSL_ERROR_NONE:
1854                                 if (k <= 0)
1855                                         goto end;
1856                                 sbuf_off=0;
1857                                 sbuf_len=k;
1858
1859                                 read_ssl=0;
1860                                 write_tty=1;
1861                                 break;
1862                         case SSL_ERROR_WANT_WRITE:
1863                                 BIO_printf(bio_c_out,"read W BLOCK\n");
1864                                 write_ssl=1;
1865                                 read_tty=0;
1866                                 break;
1867                         case SSL_ERROR_WANT_READ:
1868                                 BIO_printf(bio_c_out,"read R BLOCK\n");
1869                                 write_tty=0;
1870                                 read_ssl=1;
1871                                 if ((read_tty == 0) && (write_ssl == 0))
1872                                         write_ssl=1;
1873                                 break;
1874                         case SSL_ERROR_WANT_X509_LOOKUP:
1875                                 BIO_printf(bio_c_out,"read X BLOCK\n");
1876                                 break;
1877                         case SSL_ERROR_SYSCALL:
1878                                 ret=get_last_socket_error();
1879                                 BIO_printf(bio_err,"read:errno=%d\n",ret);
1880                                 goto shut;
1881                         case SSL_ERROR_ZERO_RETURN:
1882                                 BIO_printf(bio_c_out,"closed\n");
1883                                 ret=0;
1884                                 goto shut;
1885                         case SSL_ERROR_SSL:
1886                                 ERR_print_errors(bio_err);
1887                                 goto shut;
1888                                 /* break; */
1889                                 }
1890                         }
1891
1892 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1893 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1894                 else if (_kbhit())
1895 #else
1896                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
1897 #endif
1898 #elif defined (OPENSSL_SYS_NETWARE)
1899                 else if (_kbhit())
1900 #elif defined(OPENSSL_SYS_BEOS_R5)
1901                 else if (stdin_set)
1902 #else
1903                 else if (FD_ISSET(fileno(stdin),&readfds))
1904 #endif
1905                         {
1906                         if (crlf)
1907                                 {
1908                                 int j, lf_num;
1909
1910                                 i=raw_read_stdin(cbuf,BUFSIZZ/2);
1911                                 lf_num = 0;
1912                                 /* both loops are skipped when i <= 0 */
1913                                 for (j = 0; j < i; j++)
1914                                         if (cbuf[j] == '\n')
1915                                                 lf_num++;
1916                                 for (j = i-1; j >= 0; j--)
1917                                         {
1918                                         cbuf[j+lf_num] = cbuf[j];
1919                                         if (cbuf[j] == '\n')
1920                                                 {
1921                                                 lf_num--;
1922                                                 i++;
1923                                                 cbuf[j+lf_num] = '\r';
1924                                                 }
1925                                         }
1926                                 assert(lf_num == 0);
1927                                 }
1928                         else
1929                                 i=raw_read_stdin(cbuf,BUFSIZZ);
1930
1931                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
1932                                 {
1933                                 BIO_printf(bio_err,"DONE\n");
1934                                 ret=0;
1935                                 goto shut;
1936                                 }
1937
1938                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
1939                                 {
1940                                 BIO_printf(bio_err,"RENEGOTIATING\n");
1941                                 SSL_renegotiate(con);
1942                                 cbuf_len=0;
1943                                 }
1944 #ifndef OPENSSL_NO_HEARTBEATS
1945                         else if ((!c_ign_eof) && (cbuf[0] == 'B'))
1946                                 {
1947                                 BIO_printf(bio_err,"HEARTBEATING\n");
1948                                 SSL_heartbeat(con);
1949                                 cbuf_len=0;
1950                                 }
1951 #endif
1952                         else
1953                                 {
1954                                 cbuf_len=i;
1955                                 cbuf_off=0;
1956 #ifdef CHARSET_EBCDIC
1957                                 ebcdic2ascii(cbuf, cbuf, i);
1958 #endif
1959                                 }
1960
1961                         write_ssl=1;
1962                         read_tty=0;
1963                         }
1964                 }
1965
1966         ret=0;
1967 shut:
1968         if (in_init)
1969                 print_stuff(bio_c_out,con,full_log);
1970         SSL_shutdown(con);
1971         SHUTDOWN(SSL_get_fd(con));
1972 end:
1973         if (con != NULL)
1974                 {
1975                 if (prexit != 0)
1976                         print_stuff(bio_c_out,con,1);
1977                 SSL_free(con);
1978                 }
1979 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
1980         if (next_proto.data)
1981                 OPENSSL_free(next_proto.data);
1982 #endif
1983         if (ctx != NULL) SSL_CTX_free(ctx);
1984         if (cert)
1985                 X509_free(cert);
1986         if (key)
1987                 EVP_PKEY_free(key);
1988         if (pass)
1989                 OPENSSL_free(pass);
1990         if (vpm)
1991                 X509_VERIFY_PARAM_free(vpm);
1992         ssl_excert_free(exc);
1993         if (ssl_args)
1994                 sk_OPENSSL_STRING_free(ssl_args);
1995         if (cctx)
1996                 SSL_CONF_CTX_free(cctx);
1997         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
1998         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
1999         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
2000         if (bio_c_out != NULL)
2001                 {
2002                 BIO_free(bio_c_out);
2003                 bio_c_out=NULL;
2004                 }
2005         if (bio_c_msg != NULL)
2006                 {
2007                 BIO_free(bio_c_msg);
2008                 bio_c_msg=NULL;
2009                 }
2010         apps_shutdown();
2011         OPENSSL_EXIT(ret);
2012         }
2013
2014
2015 static void print_stuff(BIO *bio, SSL *s, int full)
2016         {
2017         X509 *peer=NULL;
2018         char *p;
2019         static const char *space="                ";
2020         char buf[BUFSIZ];
2021         STACK_OF(X509) *sk;
2022         STACK_OF(X509_NAME) *sk2;
2023         const SSL_CIPHER *c;
2024         X509_NAME *xn;
2025         int j,i;
2026 #ifndef OPENSSL_NO_COMP
2027         const COMP_METHOD *comp, *expansion;
2028 #endif
2029         unsigned char *exportedkeymat;
2030
2031         if (full)
2032                 {
2033                 int got_a_chain = 0;
2034
2035                 sk=SSL_get_peer_cert_chain(s);
2036                 if (sk != NULL)
2037                         {
2038                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
2039
2040                         BIO_printf(bio,"---\nCertificate chain\n");
2041                         for (i=0; i<sk_X509_num(sk); i++)
2042                                 {
2043                                 X509_NAME_oneline(X509_get_subject_name(
2044                                         sk_X509_value(sk,i)),buf,sizeof buf);
2045                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
2046                                 X509_NAME_oneline(X509_get_issuer_name(
2047                                         sk_X509_value(sk,i)),buf,sizeof buf);
2048                                 BIO_printf(bio,"   i:%s\n",buf);
2049                                 if (c_showcerts)
2050                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
2051                                 }
2052                         }
2053
2054                 BIO_printf(bio,"---\n");
2055                 peer=SSL_get_peer_certificate(s);
2056                 if (peer != NULL)
2057                         {
2058                         BIO_printf(bio,"Server certificate\n");
2059                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
2060                                 PEM_write_bio_X509(bio,peer);
2061                         X509_NAME_oneline(X509_get_subject_name(peer),
2062                                 buf,sizeof buf);
2063                         BIO_printf(bio,"subject=%s\n",buf);
2064                         X509_NAME_oneline(X509_get_issuer_name(peer),
2065                                 buf,sizeof buf);
2066                         BIO_printf(bio,"issuer=%s\n",buf);
2067                         }
2068                 else
2069                         BIO_printf(bio,"no peer certificate available\n");
2070
2071                 sk2=SSL_get_client_CA_list(s);
2072                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
2073                         {
2074                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
2075                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
2076                                 {
2077                                 xn=sk_X509_NAME_value(sk2,i);
2078                                 X509_NAME_oneline(xn,buf,sizeof(buf));
2079                                 BIO_write(bio,buf,strlen(buf));
2080                                 BIO_write(bio,"\n",1);
2081                                 }
2082                         }
2083                 else
2084                         {
2085                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
2086                         }
2087                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
2088                 if (p != NULL)
2089                         {
2090                         /* This works only for SSL 2.  In later protocol
2091                          * versions, the client does not know what other
2092                          * ciphers (in addition to the one to be used
2093                          * in the current connection) the server supports. */
2094
2095                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
2096                         j=i=0;
2097                         while (*p)
2098                                 {
2099                                 if (*p == ':')
2100                                         {
2101                                         BIO_write(bio,space,15-j%25);
2102                                         i++;
2103                                         j=0;
2104                                         BIO_write(bio,((i%3)?" ":"\n"),1);
2105                                         }
2106                                 else
2107                                         {
2108                                         BIO_write(bio,p,1);
2109                                         j++;
2110                                         }
2111                                 p++;
2112                                 }
2113                         BIO_write(bio,"\n",1);
2114                         }
2115
2116                 ssl_print_sigalgs(bio, s);
2117                 ssl_print_tmp_key(bio, s);
2118
2119                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
2120                         BIO_number_read(SSL_get_rbio(s)),
2121                         BIO_number_written(SSL_get_wbio(s)));
2122                 }
2123         BIO_printf(bio,(SSL_cache_hit(s)?"---\nReused, ":"---\nNew, "));
2124         c=SSL_get_current_cipher(s);
2125         BIO_printf(bio,"%s, Cipher is %s\n",
2126                 SSL_CIPHER_get_version(c),
2127                 SSL_CIPHER_get_name(c));
2128         if (peer != NULL) {
2129                 EVP_PKEY *pktmp;
2130                 pktmp = X509_get_pubkey(peer);
2131                 BIO_printf(bio,"Server public key is %d bit\n",
2132                                                          EVP_PKEY_bits(pktmp));
2133                 EVP_PKEY_free(pktmp);
2134         }
2135         BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
2136                         SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
2137 #ifndef OPENSSL_NO_COMP
2138         comp=SSL_get_current_compression(s);
2139         expansion=SSL_get_current_expansion(s);
2140         BIO_printf(bio,"Compression: %s\n",
2141                 comp ? SSL_COMP_get_name(comp) : "NONE");
2142         BIO_printf(bio,"Expansion: %s\n",
2143                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
2144 #endif
2145
2146 #ifdef SSL_DEBUG
2147         {
2148         /* Print out local port of connection: useful for debugging */
2149         int sock;
2150         struct sockaddr_in ladd;
2151         socklen_t ladd_size = sizeof(ladd);
2152         sock = SSL_get_fd(s);
2153         getsockname(sock, (struct sockaddr *)&ladd, &ladd_size);
2154         BIO_printf(bio_c_out, "LOCAL PORT is %u\n", ntohs(ladd.sin_port));
2155         }
2156 #endif
2157
2158 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2159         if (next_proto.status != -1) {
2160                 const unsigned char *proto;
2161                 unsigned int proto_len;
2162                 SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
2163                 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
2164                 BIO_write(bio, proto, proto_len);
2165                 BIO_write(bio, "\n", 1);
2166         }
2167 #endif
2168
2169         {
2170         SRTP_PROTECTION_PROFILE *srtp_profile=SSL_get_selected_srtp_profile(s);
2171
2172         if(srtp_profile)
2173                 BIO_printf(bio,"SRTP Extension negotiated, profile=%s\n",
2174                            srtp_profile->name);
2175         }
2176
2177         SSL_SESSION_print(bio,SSL_get_session(s));
2178         if (keymatexportlabel != NULL)
2179                 {
2180                 BIO_printf(bio, "Keying material exporter:\n");
2181                 BIO_printf(bio, "    Label: '%s'\n", keymatexportlabel);
2182                 BIO_printf(bio, "    Length: %i bytes\n", keymatexportlen);
2183                 exportedkeymat = OPENSSL_malloc(keymatexportlen);
2184                 if (exportedkeymat != NULL)
2185                         {
2186                         if (!SSL_export_keying_material(s, exportedkeymat,
2187                                                         keymatexportlen,
2188                                                         keymatexportlabel,
2189                                                         strlen(keymatexportlabel),
2190                                                         NULL, 0, 0))
2191                                 {
2192                                 BIO_printf(bio, "    Error\n");
2193                                 }
2194                         else
2195                                 {
2196                                 BIO_printf(bio, "    Keying material: ");
2197                                 for (i=0; i<keymatexportlen; i++)
2198                                         BIO_printf(bio, "%02X",
2199                                                    exportedkeymat[i]);
2200                                 BIO_printf(bio, "\n");
2201                                 }
2202                         OPENSSL_free(exportedkeymat);
2203                         }
2204                 }
2205         BIO_printf(bio,"---\n");
2206         if (peer != NULL)
2207                 X509_free(peer);
2208         /* flush, or debugging output gets mixed with http response */
2209         (void)BIO_flush(bio);
2210         }
2211
2212 #ifndef OPENSSL_NO_TLSEXT
2213
2214 static int ocsp_resp_cb(SSL *s, void *arg)
2215         {
2216         const unsigned char *p;
2217         int len;
2218         OCSP_RESPONSE *rsp;
2219         len = SSL_get_tlsext_status_ocsp_resp(s, &p);
2220         BIO_puts(arg, "OCSP response: ");
2221         if (!p)
2222                 {
2223                 BIO_puts(arg, "no response sent\n");
2224                 return 1;
2225                 }
2226         rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
2227         if (!rsp)
2228                 {
2229                 BIO_puts(arg, "response parse error\n");
2230                 BIO_dump_indent(arg, (char *)p, len, 4);
2231                 return 0;
2232                 }
2233         BIO_puts(arg, "\n======================================\n");
2234         OCSP_RESPONSE_print(arg, rsp, 0);
2235         BIO_puts(arg, "======================================\n");
2236         OCSP_RESPONSE_free(rsp);
2237         return 1;
2238         }
2239
2240 static int audit_proof_cb(SSL *s, void *arg)
2241         {
2242         const unsigned char *proof;
2243         size_t proof_len;
2244         size_t i;
2245         SSL_SESSION *sess = SSL_get_session(s);
2246
2247         proof = SSL_SESSION_get_tlsext_authz_server_audit_proof(sess,
2248                                                                 &proof_len);
2249         if (proof != NULL)
2250                 {
2251                 BIO_printf(bio_c_out, "Audit proof: ");
2252                 for (i = 0; i < proof_len; ++i)
2253                         BIO_printf(bio_c_out, "%02X", proof[i]);
2254                 BIO_printf(bio_c_out, "\n");
2255                 }
2256         else
2257                 {
2258                 BIO_printf(bio_c_out, "No audit proof found.\n");
2259                 }
2260         return 1;
2261         }
2262 #endif