apps/s_client.c

   1 /* apps/s_client.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58 /* ====================================================================
  59  * Copyright (c) 1998-2006 The OpenSSL Project.  All rights reserved.
  60  *
  61  * Redistribution and use in source and binary forms, with or without
  62  * modification, are permitted provided that the following conditions
  63  * are met:
  64  *
  65  * 1. Redistributions of source code must retain the above copyright
  66  *    notice, this list of conditions and the following disclaimer.
  67  *
  68  * 2. Redistributions in binary form must reproduce the above copyright
  69  *    notice, this list of conditions and the following disclaimer in
  70  *    the documentation and/or other materials provided with the
  71  *    distribution.
  72  *
  73  * 3. All advertising materials mentioning features or use of this
  74  *    software must display the following acknowledgment:
  75  *    "This product includes software developed by the OpenSSL Project
  76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  77  *
  78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  79  *    endorse or promote products derived from this software without
  80  *    prior written permission. For written permission, please contact
  81  *    openssl-core@openssl.org.
  82  *
  83  * 5. Products derived from this software may not be called "OpenSSL"
  84  *    nor may "OpenSSL" appear in their names without prior written
  85  *    permission of the OpenSSL Project.
  86  *
  87  * 6. Redistributions of any form whatsoever must retain the following
  88  *    acknowledgment:
  89  *    "This product includes software developed by the OpenSSL Project
  90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  91  *
  92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 103  * OF THE POSSIBILITY OF SUCH DAMAGE.
 104  * ====================================================================
 105  *
 106  * This product includes cryptographic software written by Eric Young
 107  * (eay@cryptsoft.com).  This product includes software written by Tim
 108  * Hudson (tjh@cryptsoft.com).
 109  *
 110  */
 111 /* ====================================================================
 112  * Copyright 2005 Nokia. All rights reserved.
 113  *
 114  * The portions of the attached software ("Contribution") is developed by
 115  * Nokia Corporation and is licensed pursuant to the OpenSSL open source
 116  * license.
 117  *
 118  * The Contribution, originally written by Mika Kousa and Pasi Eronen of
 119  * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
 120  * support (see RFC 4279) to OpenSSL.
 121  *
 122  * No patent licenses or other rights except those expressly stated in
 123  * the OpenSSL open source license shall be deemed granted or received
 124  * expressly, by implication, estoppel, or otherwise.
 125  *
 126  * No assurances are provided by Nokia that the Contribution does not
 127  * infringe the patent or other intellectual property rights of any third
 128  * party or that the license provides you with all the necessary rights
 129  * to make use of the Contribution.
 130  *
 131  * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
 132  * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
 133  * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
 134  * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
 135  * OTHERWISE.
 136  */
 137
 138 #include <assert.h>
 139 #include <ctype.h>
 140 #include <stdio.h>
 141 #include <stdlib.h>
 142 #include <string.h>
 143 #include <openssl/e_os2.h>
 144 #ifdef OPENSSL_NO_STDIO
 145 #define APPS_WIN16
 146 #endif
 147
 148 /* With IPv6, it looks like Digital has mixed up the proper order of
 149    recursive header file inclusion, resulting in the compiler complaining
 150    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
 151    is needed to have fileno() declared correctly...  So let's define u_int */
 152 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
 153 #define __U_INT
 154 typedef unsigned int u_int;
 155 #endif
 156
 157 #define USE_SOCKETS
 158 #include "apps.h"
 159 #include <openssl/x509.h>
 160 #include <openssl/ssl.h>
 161 #include <openssl/err.h>
 162 #include <openssl/pem.h>
 163 #include <openssl/rand.h>
 164 #include <openssl/ocsp.h>
 165 #include <openssl/bn.h>
 166 #ifndef OPENSSL_NO_SRP
 167 #include <openssl/srp.h>
 168 #endif
 169 #include "s_apps.h"
 170 #include "timeouts.h"
 171
 172 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 173 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 174 #undef FIONBIO
 175 #endif
 176
 177 #if defined(OPENSSL_SYS_BEOS_R5)
 178 #include <fcntl.h>
 179 #endif
 180
 181 #undef PROG
 182 #define PROG    s_client_main
 183
 184 /*#define SSL_HOST_NAME "www.netscape.com" */
 185 /*#define SSL_HOST_NAME "193.118.187.102" */
 186 #define SSL_HOST_NAME   "localhost"
 187
 188 /*#define TEST_CERT "client.pem" */ /* no default cert. */
 189
 190 #undef BUFSIZZ
 191 #define BUFSIZZ 1024*8
 192
 193 extern int verify_depth;
 194 extern int verify_error;
 195 extern int verify_return_error;
 196
 197 #ifdef FIONBIO
 198 static int c_nbio=0;
 199 #endif
 200 static int c_Pause=0;
 201 static int c_debug=0;
 202 #ifndef OPENSSL_NO_TLSEXT
 203 static int c_tlsextdebug=0;
 204 static int c_status_req=0;
 205 static int c_proof_debug=0;
 206 #endif
 207 static int c_msg=0;
 208 static int c_showcerts=0;
 209
 210 static char *keymatexportlabel=NULL;
 211 static int keymatexportlen=20;
 212
 213 static void sc_usage(void);
 214 static void print_stuff(BIO *berr,SSL *con,int full);
 215 #ifndef OPENSSL_NO_TLSEXT
 216 static int ocsp_resp_cb(SSL *s, void *arg);
 217 static int audit_proof_cb(SSL *s, void *arg);
 218 #endif
 219 static BIO *bio_c_out=NULL;
 220 static BIO *bio_c_msg=NULL;
 221 static int c_quiet=0;
 222 static int c_ign_eof=0;
 223
 224 #ifndef OPENSSL_NO_PSK
 225 /* Default PSK identity and key */
 226 static char *psk_identity="Client_identity";
 227 /*char *psk_key=NULL;  by default PSK is not used */
 228
 229 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
 230         unsigned int max_identity_len, unsigned char *psk,
 231         unsigned int max_psk_len)
 232         {
 233         unsigned int psk_len = 0;
 234         int ret;
 235         BIGNUM *bn=NULL;
 236
 237         if (c_debug)
 238                 BIO_printf(bio_c_out, "psk_client_cb\n");
 239         if (!hint)
 240                 {
 241                 /* no ServerKeyExchange message*/
 242                 if (c_debug)
 243                         BIO_printf(bio_c_out,"NULL received PSK identity hint, continuing anyway\n");
 244                 }
 245         else if (c_debug)
 246                 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
 247
 248         /* lookup PSK identity and PSK key based on the given identity hint here */
 249         ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity);
 250         if (ret < 0 || (unsigned int)ret > max_identity_len)
 251                 goto out_err;
 252         if (c_debug)
 253                 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity, ret);
 254         ret=BN_hex2bn(&bn, psk_key);
 255         if (!ret)
 256                 {
 257                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
 258                 if (bn)
 259                         BN_free(bn);
 260                 return 0;
 261                 }
 262
 263         if ((unsigned int)BN_num_bytes(bn) > max_psk_len)
 264                 {
 265                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
 266                         max_psk_len, BN_num_bytes(bn));
 267                 BN_free(bn);
 268                 return 0;
 269                 }
 270
 271         psk_len=BN_bn2bin(bn, psk);
 272         BN_free(bn);
 273         if (psk_len == 0)
 274                 goto out_err;
 275
 276         if (c_debug)
 277                 BIO_printf(bio_c_out, "created PSK len=%d\n", psk_len);
 278
 279         return psk_len;
 280  out_err:
 281         if (c_debug)
 282                 BIO_printf(bio_err, "Error in PSK client callback\n");
 283         return 0;
 284         }
 285 #endif
 286
 287 static void sc_usage(void)
 288         {
 289         BIO_printf(bio_err,"usage: s_client args\n");
 290         BIO_printf(bio_err,"\n");
 291         BIO_printf(bio_err," -host host     - use -connect instead\n");
 292         BIO_printf(bio_err," -port port     - use -connect instead\n");
 293         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
 294
 295         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 296         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 297         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 298         BIO_printf(bio_err," -key arg      - Private key file to use, in cert file if\n");
 299         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 300         BIO_printf(bio_err," -keyform arg  - key format (PEM or DER) PEM default\n");
 301         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 302         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 303         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 304         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 305         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 306         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
 307         BIO_printf(bio_err," -debug        - extra output\n");
 308 #ifdef WATT32
 309         BIO_printf(bio_err," -wdebug       - WATT-32 tcp debugging\n");
 310 #endif
 311         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 312         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
 313         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
 314 #ifdef FIONBIO
 315         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 316 #endif
 317         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 318         BIO_printf(bio_err," -quiet        - no s_client output\n");
 319         BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
 320         BIO_printf(bio_err," -no_ign_eof   - don't ignore input eof\n");
 321 #ifndef OPENSSL_NO_PSK
 322         BIO_printf(bio_err," -psk_identity arg - PSK identity\n");
 323         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
 324 # ifndef OPENSSL_NO_JPAKE
 325         BIO_printf(bio_err," -jpake arg    - JPAKE secret to use\n");
 326 # endif
 327 #endif
 328 #ifndef OPENSSL_NO_SRP
 329         BIO_printf(bio_err," -srpuser user     - SRP authentification for 'user'\n");
 330         BIO_printf(bio_err," -srppass arg      - password for 'user'\n");
 331         BIO_printf(bio_err," -srp_lateuser     - SRP username into second ClientHello message\n");
 332         BIO_printf(bio_err," -srp_moregroups   - Tolerate other than the known g N values.\n");
 333         BIO_printf(bio_err," -srp_strength int - minimal mength in bits for N (default %d).\n",SRP_MINIMAL_N);
 334 #endif
 335         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 336         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 337         BIO_printf(bio_err," -tls1_2       - just use TLSv1.2\n");
 338         BIO_printf(bio_err," -tls1_1       - just use TLSv1.1\n");
 339         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 340         BIO_printf(bio_err," -dtls1        - just use DTLSv1\n");
 341         BIO_printf(bio_err," -mtu          - set the link layer MTU\n");
 342         BIO_printf(bio_err," -no_tls1_2/-no_tls1_1/-no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 343         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 344         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
 345         BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
 346         BIO_printf(bio_err,"                 command to see what is available\n");
 347         BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
 348         BIO_printf(bio_err,"                 for those protocols that support it, where\n");
 349         BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
 350         BIO_printf(bio_err,"                 only \"smtp\", \"pop3\", \"imap\", \"ftp\" and \"xmpp\"\n");
 351         BIO_printf(bio_err,"                 are supported.\n");
 352 #ifndef OPENSSL_NO_ENGINE
 353         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 354 #endif
 355         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 356         BIO_printf(bio_err," -sess_out arg - file to write SSL session to\n");
 357         BIO_printf(bio_err," -sess_in arg  - file to read SSL session from\n");
 358 #ifndef OPENSSL_NO_TLSEXT
 359         BIO_printf(bio_err," -servername host  - Set TLS extension servername in ClientHello\n");
 360         BIO_printf(bio_err," -tlsextdebug      - hex dump of all TLS extensions received\n");
 361         BIO_printf(bio_err," -status           - request certificate status from server\n");
 362         BIO_printf(bio_err," -no_ticket        - disable use of RFC4507bis session tickets\n");
 363         BIO_printf(bio_err," -proof_debug      - request an audit proof and print its hex dump\n");
 364 # ifndef OPENSSL_NO_NEXTPROTONEG
 365         BIO_printf(bio_err," -nextprotoneg arg - enable NPN extension, considering named protocols supported (comma-separated list)\n");
 366 # endif
 367 #endif
 368         BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
 369         BIO_printf(bio_err," -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
 370         BIO_printf(bio_err," -keymatexport label   - Export keying material using label\n");
 371         BIO_printf(bio_err," -keymatexportlen len  - Export len bytes of keying material (default 20)\n");
 372         }
 373
 374 #ifndef OPENSSL_NO_TLSEXT
 375
 376 /* This is a context that we pass to callbacks */
 377 typedef struct tlsextctx_st {
 378    BIO * biodebug;
 379    int ack;
 380 } tlsextctx;
 381
 382
 383 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 384         {
 385         tlsextctx * p = (tlsextctx *) arg;
 386         const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 387         if (SSL_get_servername_type(s) != -1)
 388                 p->ack = !SSL_session_reused(s) && hn != NULL;
 389         else
 390                 BIO_printf(bio_err,"Can't use SSL_get_servername\n");
 391
 392         return SSL_TLSEXT_ERR_OK;
 393         }
 394
 395 #ifndef OPENSSL_NO_SRP
 396
 397 /* This is a context that we pass to all callbacks */
 398 typedef struct srp_arg_st
 399         {
 400         char *srppassin;
 401         char *srplogin;
 402         int msg;   /* copy from c_msg */
 403         int debug; /* copy from c_debug */
 404         int amp;   /* allow more groups */
 405         int strength /* minimal size for N */ ;
 406         } SRP_ARG;
 407
 408 #define SRP_NUMBER_ITERATIONS_FOR_PRIME 64
 409
 410 static int srp_Verify_N_and_g(const BIGNUM *N, const BIGNUM *g)
 411         {
 412         BN_CTX *bn_ctx = BN_CTX_new();
 413         BIGNUM *p = BN_new();
 414         BIGNUM *r = BN_new();
 415         int ret =
 416                 g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) &&
 417                 BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) &&
 418                 p != NULL && BN_rshift1(p, N) &&
 419
 420                 /* p = (N-1)/2 */
 421                 BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) &&
 422                 r != NULL &&
 423
 424                 /* verify g^((N-1)/2) == -1 (mod N) */
 425                 BN_mod_exp(r, g, p, N, bn_ctx) &&
 426                 BN_add_word(r, 1) &&
 427                 BN_cmp(r, N) == 0;
 428
 429         if(r)
 430                 BN_free(r);
 431         if(p)
 432                 BN_free(p);
 433         if(bn_ctx)
 434                 BN_CTX_free(bn_ctx);
 435         return ret;
 436         }
 437
 438 /* This callback is used here for two purposes:
 439    - extended debugging
 440    - making some primality tests for unknown groups
 441    The callback is only called for a non default group.
 442
 443    An application does not need the call back at all if
 444    only the stanard groups are used.  In real life situations,
 445    client and server already share well known groups,
 446    thus there is no need to verify them.
 447    Furthermore, in case that a server actually proposes a group that
 448    is not one of those defined in RFC 5054, it is more appropriate
 449    to add the group to a static list and then compare since
 450    primality tests are rather cpu consuming.
 451 */
 452
 453 static int MS_CALLBACK ssl_srp_verify_param_cb(SSL *s, void *arg)
 454         {
 455         SRP_ARG *srp_arg = (SRP_ARG *)arg;
 456         BIGNUM *N = NULL, *g = NULL;
 457         if (!(N = SSL_get_srp_N(s)) || !(g = SSL_get_srp_g(s)))
 458                 return 0;
 459         if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1)
 460                 {
 461                 BIO_printf(bio_err, "SRP parameters:\n");
 462                 BIO_printf(bio_err,"\tN="); BN_print(bio_err,N);
 463                 BIO_printf(bio_err,"\n\tg="); BN_print(bio_err,g);
 464                 BIO_printf(bio_err,"\n");
 465                 }
 466
 467         if (SRP_check_known_gN_param(g,N))
 468                 return 1;
 469
 470         if (srp_arg->amp == 1)
 471                 {
 472                 if (srp_arg->debug)
 473                         BIO_printf(bio_err, "SRP param N and g are not known params, going to check deeper.\n");
 474
 475 /* The srp_moregroups is a real debugging feature.
 476    Implementors should rather add the value to the known ones.
 477    The minimal size has already been tested.
 478 */
 479                 if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N,g))
 480                         return 1;
 481                 }
 482         BIO_printf(bio_err, "SRP param N and g rejected.\n");
 483         return 0;
 484         }
 485
 486 #define PWD_STRLEN 1024
 487
 488 static char * MS_CALLBACK ssl_give_srp_client_pwd_cb(SSL *s, void *arg)
 489         {
 490         SRP_ARG *srp_arg = (SRP_ARG *)arg;
 491         char *pass = (char *)OPENSSL_malloc(PWD_STRLEN+1);
 492         PW_CB_DATA cb_tmp;
 493         int l;
 494
 495         cb_tmp.password = (char *)srp_arg->srppassin;
 496         cb_tmp.prompt_info = "SRP user";
 497         if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp))<0)
 498                 {
 499                 BIO_printf (bio_err, "Can't read Password\n");
 500                 OPENSSL_free(pass);
 501                 return NULL;
 502                 }
 503         *(pass+l)= '\0';
 504
 505         return pass;
 506         }
 507
 508 #endif
 509         char *srtp_profiles = NULL;
 510
 511 # ifndef OPENSSL_NO_NEXTPROTONEG
 512 /* This the context that we pass to next_proto_cb */
 513 typedef struct tlsextnextprotoctx_st {
 514         unsigned char *data;
 515         unsigned short len;
 516         int status;
 517 } tlsextnextprotoctx;
 518
 519 static tlsextnextprotoctx next_proto;
 520
 521 static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg)
 522         {
 523         tlsextnextprotoctx *ctx = arg;
 524
 525         if (!c_quiet)
 526                 {
 527                 /* We can assume that |in| is syntactically valid. */
 528                 unsigned i;
 529                 BIO_printf(bio_c_out, "Protocols advertised by server: ");
 530                 for (i = 0; i < inlen; )
 531                         {
 532                         if (i)
 533                                 BIO_write(bio_c_out, ", ", 2);
 534                         BIO_write(bio_c_out, &in[i + 1], in[i]);
 535                         i += in[i] + 1;
 536                         }
 537                 BIO_write(bio_c_out, "\n", 1);
 538                 }
 539
 540         ctx->status = SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
 541         return SSL_TLSEXT_ERR_OK;
 542         }
 543 # endif  /* ndef OPENSSL_NO_NEXTPROTONEG */
 544 #endif
 545
 546 enum
 547 {
 548         PROTO_OFF       = 0,
 549         PROTO_SMTP,
 550         PROTO_POP3,
 551         PROTO_IMAP,
 552         PROTO_FTP,
 553         PROTO_XMPP
 554 };
 555
 556 int MAIN(int, char **);
 557
 558 int MAIN(int argc, char **argv)
 559         {
 560         unsigned int off=0, clr=0;
 561         unsigned int cert_flags=0;
 562         int build_chain = 0;
 563         SSL *con=NULL;
 564 #ifndef OPENSSL_NO_KRB5
 565         KSSL_CTX *kctx;
 566 #endif
 567         int s,k,width,state=0;
 568         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
 569         int cbuf_len,cbuf_off;
 570         int sbuf_len,sbuf_off;
 571         fd_set readfds,writefds;
 572         short port=PORT;
 573         int full_log=1;
 574         char *host=SSL_HOST_NAME;
 575         char *cert_file=NULL,*key_file=NULL;
 576         int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
 577         char *passarg = NULL, *pass = NULL;
 578         X509 *cert = NULL;
 579         EVP_PKEY *key = NULL;
 580         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 581         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 582         int crlf=0;
 583         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 584         SSL_CTX *ctx=NULL;
 585         int ret=1,in_init=1,i,nbio_test=0;
 586         int starttls_proto = PROTO_OFF;
 587         int prexit = 0;
 588         X509_VERIFY_PARAM *vpm = NULL;
 589         int badarg = 0;
 590         const SSL_METHOD *meth=NULL;
 591         int socket_type=SOCK_STREAM;
 592         BIO *sbio;
 593         char *inrand=NULL;
 594         int mbuf_len=0;
 595         struct timeval timeout, *timeoutp;
 596 #ifndef OPENSSL_NO_ENGINE
 597         char *engine_id=NULL;
 598         char *ssl_client_engine_id=NULL;
 599         ENGINE *ssl_client_engine=NULL;
 600 #endif
 601         ENGINE *e=NULL;
 602 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
 603         struct timeval tv;
 604 #if defined(OPENSSL_SYS_BEOS_R5)
 605         int stdin_set = 0;
 606 #endif
 607 #endif
 608 #ifndef OPENSSL_NO_TLSEXT
 609         char *servername = NULL;
 610         char *curves=NULL;
 611         char *sigalgs=NULL;
 612         char *client_sigalgs=NULL;
 613         tlsextctx tlsextcbp =
 614         {NULL,0};
 615 # ifndef OPENSSL_NO_NEXTPROTONEG
 616         const char *next_proto_neg_in = NULL;
 617 # endif
 618 #endif
 619         char *sess_in = NULL;
 620         char *sess_out = NULL;
 621         struct sockaddr peer;
 622         int peerlen = sizeof(peer);
 623         int enable_timeouts = 0 ;
 624         long socket_mtu = 0;
 625 #ifndef OPENSSL_NO_JPAKE
 626         char *jpake_secret = NULL;
 627 #endif
 628 #ifndef OPENSSL_NO_SRP
 629         char * srppass = NULL;
 630         int srp_lateuser = 0;
 631         SRP_ARG srp_arg = {NULL,NULL,0,0,0,1024};
 632 #endif
 633         SSL_EXCERT *exc = NULL;
 634
 635         meth=SSLv23_client_method();
 636
 637         apps_startup();
 638         c_Pause=0;
 639         c_quiet=0;
 640         c_ign_eof=0;
 641         c_debug=0;
 642         c_msg=0;
 643         c_showcerts=0;
 644
 645         if (bio_err == NULL)
 646                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 647
 648         if (!load_config(bio_err, NULL))
 649                 goto end;
 650
 651         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 652                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 653                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
 654                 {
 655                 BIO_printf(bio_err,"out of memory\n");
 656                 goto end;
 657                 }
 658
 659         verify_depth=0;
 660         verify_error=X509_V_OK;
 661 #ifdef FIONBIO
 662         c_nbio=0;
 663 #endif
 664
 665         argc--;
 666         argv++;
 667         while (argc >= 1)
 668                 {
 669                 if      (strcmp(*argv,"-host") == 0)
 670                         {
 671                         if (--argc < 1) goto bad;
 672                         host= *(++argv);
 673                         }
 674                 else if (strcmp(*argv,"-port") == 0)
 675                         {
 676                         if (--argc < 1) goto bad;
 677                         port=atoi(*(++argv));
 678                         if (port == 0) goto bad;
 679                         }
 680                 else if (strcmp(*argv,"-connect") == 0)
 681                         {
 682                         if (--argc < 1) goto bad;
 683                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 684                                 goto bad;
 685                         }
 686                 else if (strcmp(*argv,"-verify") == 0)
 687                         {
 688                         verify=SSL_VERIFY_PEER;
 689                         if (--argc < 1) goto bad;
 690                         verify_depth=atoi(*(++argv));
 691                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 692                         }
 693                 else if (strcmp(*argv,"-cert") == 0)
 694                         {
 695                         if (--argc < 1) goto bad;
 696                         cert_file= *(++argv);
 697                         }
 698                 else if (strcmp(*argv,"-sess_out") == 0)
 699                         {
 700                         if (--argc < 1) goto bad;
 701                         sess_out = *(++argv);
 702                         }
 703                 else if (strcmp(*argv,"-sess_in") == 0)
 704                         {
 705                         if (--argc < 1) goto bad;
 706                         sess_in = *(++argv);
 707                         }
 708                 else if (strcmp(*argv,"-certform") == 0)
 709                         {
 710                         if (--argc < 1) goto bad;
 711                         cert_format = str2fmt(*(++argv));
 712                         }
 713                 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm))
 714                         {
 715                         if (badarg)
 716                                 goto bad;
 717                         continue;
 718                         }
 719                 else if (strcmp(*argv,"-verify_return_error") == 0)
 720                         verify_return_error = 1;
 721                 else if (args_excert(&argv, &argc, &badarg, bio_err, &exc))
 722                         {
 723                         if (badarg)
 724                                 goto bad;
 725                         continue;
 726                         }
 727                 else if (strcmp(*argv,"-prexit") == 0)
 728                         prexit=1;
 729                 else if (strcmp(*argv,"-crlf") == 0)
 730                         crlf=1;
 731                 else if (strcmp(*argv,"-quiet") == 0)
 732                         {
 733                         c_quiet=1;
 734                         c_ign_eof=1;
 735                         }
 736                 else if (strcmp(*argv,"-ign_eof") == 0)
 737                         c_ign_eof=1;
 738                 else if (strcmp(*argv,"-no_ign_eof") == 0)
 739                         c_ign_eof=0;
 740                 else if (strcmp(*argv,"-pause") == 0)
 741                         c_Pause=1;
 742                 else if (strcmp(*argv,"-debug") == 0)
 743                         c_debug=1;
 744 #ifndef OPENSSL_NO_TLSEXT
 745                 else if (strcmp(*argv,"-tlsextdebug") == 0)
 746                         c_tlsextdebug=1;
 747                 else if (strcmp(*argv,"-status") == 0)
 748                         c_status_req=1;
 749                 else if (strcmp(*argv,"-proof_debug") == 0)
 750                         c_proof_debug=1;
 751 #endif
 752 #ifdef WATT32
 753                 else if (strcmp(*argv,"-wdebug") == 0)
 754                         dbug_init();
 755 #endif
 756                 else if (strcmp(*argv,"-msg") == 0)
 757                         c_msg=1;
 758                 else if (strcmp(*argv,"-msgfile") == 0)
 759                         {
 760                         if (--argc < 1) goto bad;
 761                         bio_c_msg = BIO_new_file(*(++argv), "w");
 762                         }
 763 #ifndef OPENSSL_NO_SSL_TRACE
 764                 else if (strcmp(*argv,"-trace") == 0)
 765                         c_msg=2;
 766 #endif
 767                 else if (strcmp(*argv,"-showcerts") == 0)
 768                         c_showcerts=1;
 769                 else if (strcmp(*argv,"-nbio_test") == 0)
 770                         nbio_test=1;
 771                 else if (strcmp(*argv,"-state") == 0)
 772                         state=1;
 773 #ifndef OPENSSL_NO_PSK
 774                 else if (strcmp(*argv,"-psk_identity") == 0)
 775                         {
 776                         if (--argc < 1) goto bad;
 777                         psk_identity=*(++argv);
 778                         }
 779                 else if (strcmp(*argv,"-psk") == 0)
 780                         {
 781                         size_t j;
 782
 783                         if (--argc < 1) goto bad;
 784                         psk_key=*(++argv);
 785                         for (j = 0; j < strlen(psk_key); j++)
 786                                 {
 787                                 if (isxdigit((unsigned char)psk_key[j]))
 788                                         continue;
 789                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
 790                                 goto bad;
 791                                 }
 792                         }
 793 #endif
 794 #ifndef OPENSSL_NO_SRP
 795                 else if (strcmp(*argv,"-srpuser") == 0)
 796                         {
 797                         if (--argc < 1) goto bad;
 798                         srp_arg.srplogin= *(++argv);
 799                         meth=TLSv1_client_method();
 800                         }
 801                 else if (strcmp(*argv,"-srppass") == 0)
 802                         {
 803                         if (--argc < 1) goto bad;
 804                         srppass= *(++argv);
 805                         meth=TLSv1_client_method();
 806                         }
 807                 else if (strcmp(*argv,"-srp_strength") == 0)
 808                         {
 809                         if (--argc < 1) goto bad;
 810                         srp_arg.strength=atoi(*(++argv));
 811                         BIO_printf(bio_err,"SRP minimal length for N is %d\n",srp_arg.strength);
 812                         meth=TLSv1_client_method();
 813                         }
 814                 else if (strcmp(*argv,"-srp_lateuser") == 0)
 815                         {
 816                         srp_lateuser= 1;
 817                         meth=TLSv1_client_method();
 818                         }
 819                 else if (strcmp(*argv,"-srp_moregroups") == 0)
 820                         {
 821                         srp_arg.amp=1;
 822                         meth=TLSv1_client_method();
 823                         }
 824 #endif
 825 #ifndef OPENSSL_NO_SSL2
 826                 else if (strcmp(*argv,"-ssl2") == 0)
 827                         meth=SSLv2_client_method();
 828 #endif
 829 #ifndef OPENSSL_NO_SSL3
 830                 else if (strcmp(*argv,"-ssl3") == 0)
 831                         meth=SSLv3_client_method();
 832 #endif
 833 #ifndef OPENSSL_NO_TLS1
 834                 else if (strcmp(*argv,"-tls1_2") == 0)
 835                         meth=TLSv1_2_client_method();
 836                 else if (strcmp(*argv,"-tls1_1") == 0)
 837                         meth=TLSv1_1_client_method();
 838                 else if (strcmp(*argv,"-tls1") == 0)
 839                         meth=TLSv1_client_method();
 840 #endif
 841 #ifndef OPENSSL_NO_DTLS1
 842                 else if (strcmp(*argv,"-dtls1") == 0)
 843                         {
 844                         meth=DTLSv1_client_method();
 845                         socket_type=SOCK_DGRAM;
 846                         }
 847                 else if (strcmp(*argv,"-timeout") == 0)
 848                         enable_timeouts=1;
 849                 else if (strcmp(*argv,"-mtu") == 0)
 850                         {
 851                         if (--argc < 1) goto bad;
 852                         socket_mtu = atol(*(++argv));
 853                         }
 854 #endif
 855                 else if (strcmp(*argv,"-bugs") == 0)
 856                         bugs=1;
 857                 else if (strcmp(*argv,"-keyform") == 0)
 858                         {
 859                         if (--argc < 1) goto bad;
 860                         key_format = str2fmt(*(++argv));
 861                         }
 862                 else if (strcmp(*argv,"-pass") == 0)
 863                         {
 864                         if (--argc < 1) goto bad;
 865                         passarg = *(++argv);
 866                         }
 867                 else if (strcmp(*argv,"-key") == 0)
 868                         {
 869                         if (--argc < 1) goto bad;
 870                         key_file= *(++argv);
 871                         }
 872                 else if (strcmp(*argv,"-reconnect") == 0)
 873                         {
 874                         reconnect=5;
 875                         }
 876                 else if (strcmp(*argv,"-CApath") == 0)
 877                         {
 878                         if (--argc < 1) goto bad;
 879                         CApath= *(++argv);
 880                         }
 881                 else if (strcmp(*argv,"-build_chain") == 0)
 882                         build_chain = 1;
 883                 else if (strcmp(*argv,"-CAfile") == 0)
 884                         {
 885                         if (--argc < 1) goto bad;
 886                         CAfile= *(++argv);
 887                         }
 888                 else if (strcmp(*argv,"-no_tls1_2") == 0)
 889                         off|=SSL_OP_NO_TLSv1_2;
 890                 else if (strcmp(*argv,"-no_tls1_1") == 0)
 891                         off|=SSL_OP_NO_TLSv1_1;
 892                 else if (strcmp(*argv,"-no_tls1") == 0)
 893                         off|=SSL_OP_NO_TLSv1;
 894                 else if (strcmp(*argv,"-no_ssl3") == 0)
 895                         off|=SSL_OP_NO_SSLv3;
 896                 else if (strcmp(*argv,"-no_ssl2") == 0)
 897                         off|=SSL_OP_NO_SSLv2;
 898                 else if (strcmp(*argv,"-no_comp") == 0)
 899                         { off|=SSL_OP_NO_COMPRESSION; }
 900 #ifndef OPENSSL_NO_TLSEXT
 901                 else if (strcmp(*argv,"-no_ticket") == 0)
 902                         { off|=SSL_OP_NO_TICKET; }
 903 # ifndef OPENSSL_NO_NEXTPROTONEG
 904                 else if (strcmp(*argv,"-nextprotoneg") == 0)
 905                         {
 906                         if (--argc < 1) goto bad;
 907                         next_proto_neg_in = *(++argv);
 908                         }
 909 # endif
 910 #endif
 911                 else if (strcmp(*argv,"-serverpref") == 0)
 912                         off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
 913                 else if (strcmp(*argv,"-legacy_renegotiation") == 0)
 914                         off|=SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION;
 915                 else if (strcmp(*argv,"-legacy_server_connect") == 0)
 916                         { off|=SSL_OP_LEGACY_SERVER_CONNECT; }
 917                 else if (strcmp(*argv,"-no_legacy_server_connect") == 0)
 918                         { clr|=SSL_OP_LEGACY_SERVER_CONNECT; }
 919                 else if (strcmp(*argv,"-cipher") == 0)
 920                         {
 921                         if (--argc < 1) goto bad;
 922                         cipher= *(++argv);
 923                         }
 924 #ifdef FIONBIO
 925                 else if (strcmp(*argv,"-nbio") == 0)
 926                         { c_nbio=1; }
 927 #endif
 928                 else if (strcmp(*argv,"-starttls") == 0)
 929                         {
 930                         if (--argc < 1) goto bad;
 931                         ++argv;
 932                         if (strcmp(*argv,"smtp") == 0)
 933                                 starttls_proto = PROTO_SMTP;
 934                         else if (strcmp(*argv,"pop3") == 0)
 935                                 starttls_proto = PROTO_POP3;
 936                         else if (strcmp(*argv,"imap") == 0)
 937                                 starttls_proto = PROTO_IMAP;
 938                         else if (strcmp(*argv,"ftp") == 0)
 939                                 starttls_proto = PROTO_FTP;
 940                         else if (strcmp(*argv, "xmpp") == 0)
 941                                 starttls_proto = PROTO_XMPP;
 942                         else
 943                                 goto bad;
 944                         }
 945 #ifndef OPENSSL_NO_ENGINE
 946                 else if (strcmp(*argv,"-engine") == 0)
 947                         {
 948                         if (--argc < 1) goto bad;
 949                         engine_id = *(++argv);
 950                         }
 951                 else if (strcmp(*argv,"-ssl_client_engine") == 0)
 952                         {
 953                         if (--argc < 1) goto bad;
 954                         ssl_client_engine_id = *(++argv);
 955                         }
 956 #endif
 957                 else if (strcmp(*argv,"-rand") == 0)
 958                         {
 959                         if (--argc < 1) goto bad;
 960                         inrand= *(++argv);
 961                         }
 962 #ifndef OPENSSL_NO_TLSEXT
 963                 else if (strcmp(*argv,"-servername") == 0)
 964                         {
 965                         if (--argc < 1) goto bad;
 966                         servername= *(++argv);
 967                         /* meth=TLSv1_client_method(); */
 968                         }
 969                 else if (strcmp(*argv,"-curves") == 0)
 970                         {
 971                         if (--argc < 1) goto bad;
 972                         curves= *(++argv);
 973                         }
 974                 else if (strcmp(*argv,"-sigalgs") == 0)
 975                         {
 976                         if (--argc < 1) goto bad;
 977                         sigalgs= *(++argv);
 978                         }
 979                 else if (strcmp(*argv,"-client_sigalgs") == 0)
 980                         {
 981                         if (--argc < 1) goto bad;
 982                         client_sigalgs= *(++argv);
 983                         }
 984 #endif
 985 #ifndef OPENSSL_NO_JPAKE
 986                 else if (strcmp(*argv,"-jpake") == 0)
 987                         {
 988                         if (--argc < 1) goto bad;
 989                         jpake_secret = *++argv;
 990                         }
 991 #endif
 992                 else if (strcmp(*argv,"-use_srtp") == 0)
 993                         {
 994                         if (--argc < 1) goto bad;
 995                         srtp_profiles = *(++argv);
 996                         }
 997                 else if (strcmp(*argv,"-keymatexport") == 0)
 998                         {
 999                         if (--argc < 1) goto bad;
1000                         keymatexportlabel= *(++argv);
1001                         }
1002                 else if (strcmp(*argv,"-keymatexportlen") == 0)
1003                         {
1004                         if (--argc < 1) goto bad;
1005                         keymatexportlen=atoi(*(++argv));
1006                         if (keymatexportlen == 0) goto bad;
1007                         }
1008                 else if (strcmp(*argv, "-cert_strict") == 0)
1009                         cert_flags |= SSL_CERT_FLAG_TLS_STRICT;
1010 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
1011                 else if (strcmp(*argv, "-debug_broken_protocol") == 0)
1012                         cert_flags |= SSL_CERT_FLAG_BROKEN_PROTCOL;
1013 #endif
1014                 else
1015                         {
1016                         BIO_printf(bio_err,"unknown option %s\n",*argv);
1017                         badop=1;
1018                         break;
1019                         }
1020                 argc--;
1021                 argv++;
1022                 }
1023         if (badop)
1024                 {
1025 bad:
1026                 sc_usage();
1027                 goto end;
1028                 }
1029
1030 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1031         if (jpake_secret)
1032                 {
1033                 if (psk_key)
1034                         {
1035                         BIO_printf(bio_err,
1036                                    "Can't use JPAKE and PSK together\n");
1037                         goto end;
1038                         }
1039                 psk_identity = "JPAKE";
1040                 }
1041
1042         if (cipher)
1043                 {
1044                 BIO_printf(bio_err, "JPAKE sets cipher to PSK\n");
1045                 goto end;
1046                 }
1047         cipher = "PSK";
1048 #endif
1049
1050         OpenSSL_add_ssl_algorithms();
1051         SSL_load_error_strings();
1052
1053 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
1054         next_proto.status = -1;
1055         if (next_proto_neg_in)
1056                 {
1057                 next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in);
1058                 if (next_proto.data == NULL)
1059                         {
1060                         BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
1061                         goto end;
1062                         }
1063                 }
1064         else
1065                 next_proto.data = NULL;
1066 #endif
1067
1068 #ifndef OPENSSL_NO_ENGINE
1069         e = setup_engine(bio_err, engine_id, 1);
1070         if (ssl_client_engine_id)
1071                 {
1072                 ssl_client_engine = ENGINE_by_id(ssl_client_engine_id);
1073                 if (!ssl_client_engine)
1074                         {
1075                         BIO_printf(bio_err,
1076                                         "Error getting client auth engine\n");
1077                         goto end;
1078                         }
1079                 }
1080
1081 #endif
1082         if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
1083                 {
1084                 BIO_printf(bio_err, "Error getting password\n");
1085                 goto end;
1086                 }
1087
1088         if (key_file == NULL)
1089                 key_file = cert_file;
1090
1091
1092         if (key_file)
1093
1094                 {
1095
1096                 key = load_key(bio_err, key_file, key_format, 0, pass, e,
1097                                "client certificate private key file");
1098                 if (!key)
1099                         {
1100                         ERR_print_errors(bio_err);
1101                         goto end;
1102                         }
1103
1104                 }
1105
1106         if (cert_file)
1107
1108                 {
1109                 cert = load_cert(bio_err,cert_file,cert_format,
1110                                 NULL, e, "client certificate file");
1111
1112                 if (!cert)
1113                         {
1114                         ERR_print_errors(bio_err);
1115                         goto end;
1116                         }
1117                 }
1118
1119         if (!load_excert(&exc, bio_err))
1120                 goto end;
1121
1122         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1123                 && !RAND_status())
1124                 {
1125                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
1126                 }
1127         if (inrand != NULL)
1128                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
1129                         app_RAND_load_files(inrand));
1130
1131         if (bio_c_out == NULL)
1132                 {
1133                 if (c_quiet && !c_debug && !c_msg)
1134                         {
1135                         bio_c_out=BIO_new(BIO_s_null());
1136                         }
1137                 else
1138                         {
1139                         if (bio_c_out == NULL)
1140                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
1141                         }
1142                 }
1143
1144 #ifndef OPENSSL_NO_SRP
1145         if(!app_passwd(bio_err, srppass, NULL, &srp_arg.srppassin, NULL))
1146                 {
1147                 BIO_printf(bio_err, "Error getting password\n");
1148                 goto end;
1149                 }
1150 #endif
1151
1152         ctx=SSL_CTX_new(meth);
1153         if (ctx == NULL)
1154                 {
1155                 ERR_print_errors(bio_err);
1156                 goto end;
1157                 }
1158
1159         if (vpm)
1160                 SSL_CTX_set1_param(ctx, vpm);
1161
1162 #ifndef OPENSSL_NO_ENGINE
1163         if (ssl_client_engine)
1164                 {
1165                 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine))
1166                         {
1167                         BIO_puts(bio_err, "Error setting client auth engine\n");
1168                         ERR_print_errors(bio_err);
1169                         ENGINE_free(ssl_client_engine);
1170                         goto end;
1171                         }
1172                 ENGINE_free(ssl_client_engine);
1173                 }
1174 #endif
1175
1176 #ifndef OPENSSL_NO_PSK
1177 #ifdef OPENSSL_NO_JPAKE
1178         if (psk_key != NULL)
1179 #else
1180         if (psk_key != NULL || jpake_secret)
1181 #endif
1182                 {
1183                 if (c_debug)
1184                         BIO_printf(bio_c_out, "PSK key given or JPAKE in use, setting client callback\n");
1185                 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1186                 }
1187         if (srtp_profiles != NULL)
1188                 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
1189 #endif
1190         if (bugs)
1191                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
1192         else
1193                 SSL_CTX_set_options(ctx,off);
1194
1195         if (clr)
1196                 SSL_CTX_clear_options(ctx, clr);
1197         if (cert_flags) SSL_CTX_set_cert_flags(ctx, cert_flags);
1198         if (exc) ssl_ctx_set_excert(ctx, exc);
1199         /* DTLS: partial reads end up discarding unread UDP bytes :-(
1200          * Setting read ahead solves this problem.
1201          */
1202         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1203
1204 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
1205         if (next_proto.data)
1206                 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
1207 #endif
1208
1209         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1210         if (cipher != NULL)
1211                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
1212                 BIO_printf(bio_err,"error setting cipher list\n");
1213                 ERR_print_errors(bio_err);
1214                 goto end;
1215         }
1216 #if 0
1217         else
1218                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
1219 #endif
1220
1221         SSL_CTX_set_verify(ctx,verify,verify_callback);
1222
1223         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1224                 (!SSL_CTX_set_default_verify_paths(ctx)))
1225                 {
1226                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
1227                 ERR_print_errors(bio_err);
1228                 /* goto end; */
1229                 }
1230
1231         if (!set_cert_key_stuff(ctx,cert,key, NULL, build_chain))
1232                 goto end;
1233
1234 #ifndef OPENSSL_NO_TLSEXT
1235         if (curves != NULL)
1236                 if(!SSL_CTX_set1_curves_list(ctx,curves)) {
1237                 BIO_printf(bio_err,"error setting curve list\n");
1238                 ERR_print_errors(bio_err);
1239                 goto end;
1240         }
1241         if (sigalgs != NULL)
1242                 if(!SSL_CTX_set1_sigalgs_list(ctx,sigalgs)) {
1243                 BIO_printf(bio_err,"error setting signature algorithms list\n");
1244                 ERR_print_errors(bio_err);
1245                 goto end;
1246         }
1247         if (client_sigalgs != NULL)
1248                 if(!SSL_CTX_set1_client_sigalgs_list(ctx,client_sigalgs)) {
1249                 BIO_printf(bio_err,"error setting client signature algorithms list\n");
1250                 ERR_print_errors(bio_err);
1251                 goto end;
1252         }
1253         if (servername != NULL)
1254                 {
1255                 tlsextcbp.biodebug = bio_err;
1256                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1257                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1258                 }
1259 #ifndef OPENSSL_NO_SRP
1260         if (srp_arg.srplogin)
1261                 {
1262                 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin))
1263                         {
1264                         BIO_printf(bio_err,"Unable to set SRP username\n");
1265                         goto end;
1266                         }
1267                 srp_arg.msg = c_msg;
1268                 srp_arg.debug = c_debug ;
1269                 SSL_CTX_set_srp_cb_arg(ctx,&srp_arg);
1270                 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb);
1271                 SSL_CTX_set_srp_strength(ctx, srp_arg.strength);
1272                 if (c_msg || c_debug || srp_arg.amp == 0)
1273                         SSL_CTX_set_srp_verify_param_callback(ctx, ssl_srp_verify_param_cb);
1274                 }
1275
1276 #endif
1277         if (c_proof_debug)
1278                 SSL_CTX_set_tlsext_authz_server_audit_proof_cb(ctx,
1279                                                                audit_proof_cb);
1280 #endif
1281
1282         con=SSL_new(ctx);
1283         if (sess_in)
1284                 {
1285                 SSL_SESSION *sess;
1286                 BIO *stmp = BIO_new_file(sess_in, "r");
1287                 if (!stmp)
1288                         {
1289                         BIO_printf(bio_err, "Can't open session file %s\n",
1290                                                 sess_in);
1291                         ERR_print_errors(bio_err);
1292                         goto end;
1293                         }
1294                 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1295                 BIO_free(stmp);
1296                 if (!sess)
1297                         {
1298                         BIO_printf(bio_err, "Can't open session file %s\n",
1299                                                 sess_in);
1300                         ERR_print_errors(bio_err);
1301                         goto end;
1302                         }
1303                 SSL_set_session(con, sess);
1304                 SSL_SESSION_free(sess);
1305                 }
1306 #ifndef OPENSSL_NO_TLSEXT
1307         if (servername != NULL)
1308                 {
1309                 if (!SSL_set_tlsext_host_name(con,servername))
1310                         {
1311                         BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
1312                         ERR_print_errors(bio_err);
1313                         goto end;
1314                         }
1315                 }
1316 #endif
1317 #ifndef OPENSSL_NO_KRB5
1318         if (con  &&  (kctx = kssl_ctx_new()) != NULL)
1319                 {
1320                 SSL_set0_kssl_ctx(con, kctx);
1321                 kssl_ctx_setstring(kctx, KSSL_SERVER, host);
1322                 }
1323 #endif  /* OPENSSL_NO_KRB5  */
1324 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
1325 #if 0
1326 #ifdef TLSEXT_TYPE_opaque_prf_input
1327         SSL_set_tlsext_opaque_prf_input(con, "Test client", 11);
1328 #endif
1329 #endif
1330
1331 re_start:
1332
1333         if (init_client(&s,host,port,socket_type) == 0)
1334                 {
1335                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
1336                 SHUTDOWN(s);
1337                 goto end;
1338                 }
1339         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
1340
1341 #ifdef FIONBIO
1342         if (c_nbio)
1343                 {
1344                 unsigned long l=1;
1345                 BIO_printf(bio_c_out,"turning on non blocking io\n");
1346                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
1347                         {
1348                         ERR_print_errors(bio_err);
1349                         goto end;
1350                         }
1351                 }
1352 #endif
1353         if (c_Pause & 0x01) SSL_set_debug(con, 1);
1354
1355         if ( SSL_version(con) == DTLS1_VERSION)
1356                 {
1357
1358                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
1359                 if (getsockname(s, &peer, (void *)&peerlen) < 0)
1360                         {
1361                         BIO_printf(bio_err, "getsockname:errno=%d\n",
1362                                 get_last_socket_error());
1363                         SHUTDOWN(s);
1364                         goto end;
1365                         }
1366
1367                 (void)BIO_ctrl_set_connected(sbio, 1, &peer);
1368
1369                 if (enable_timeouts)
1370                         {
1371                         timeout.tv_sec = 0;
1372                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
1373                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
1374
1375                         timeout.tv_sec = 0;
1376                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
1377                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
1378                         }
1379
1380                 if (socket_mtu > 28)
1381                         {
1382                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
1383                         SSL_set_mtu(con, socket_mtu - 28);
1384                         }
1385                 else
1386                         /* want to do MTU discovery */
1387                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
1388                 }
1389         else
1390                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
1391
1392         if (nbio_test)
1393                 {
1394                 BIO *test;
1395
1396                 test=BIO_new(BIO_f_nbio_test());
1397                 sbio=BIO_push(test,sbio);
1398                 }
1399
1400         if (c_debug)
1401                 {
1402                 SSL_set_debug(con, 1);
1403                 BIO_set_callback(sbio,bio_dump_callback);
1404                 BIO_set_callback_arg(sbio,(char *)bio_c_out);
1405                 }
1406         if (c_msg)
1407                 {
1408 #ifndef OPENSSL_NO_SSL_TRACE
1409                 if (c_msg == 2)
1410                         SSL_set_msg_callback(con, SSL_trace);
1411                 else
1412 #endif
1413                         SSL_set_msg_callback(con, msg_cb);
1414                 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out);
1415                 }
1416 #ifndef OPENSSL_NO_TLSEXT
1417         if (c_tlsextdebug)
1418                 {
1419                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1420                 SSL_set_tlsext_debug_arg(con, bio_c_out);
1421                 }
1422         if (c_status_req)
1423                 {
1424                 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
1425                 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
1426                 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
1427 #if 0
1428 {
1429 STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null();
1430 OCSP_RESPID *id = OCSP_RESPID_new();
1431 id->value.byKey = ASN1_OCTET_STRING_new();
1432 id->type = V_OCSP_RESPID_KEY;
1433 ASN1_STRING_set(id->value.byKey, "Hello World", -1);
1434 sk_OCSP_RESPID_push(ids, id);
1435 SSL_set_tlsext_status_ids(con, ids);
1436 }
1437 #endif
1438                 }
1439 #endif
1440 #ifndef OPENSSL_NO_JPAKE
1441         if (jpake_secret)
1442                 jpake_client_auth(bio_c_out, sbio, jpake_secret);
1443 #endif
1444
1445         SSL_set_bio(con,sbio,sbio);
1446         SSL_set_connect_state(con);
1447
1448         /* ok, lets connect */
1449         width=SSL_get_fd(con)+1;
1450
1451         read_tty=1;
1452         write_tty=0;
1453         tty_on=0;
1454         read_ssl=1;
1455         write_ssl=1;
1456
1457         cbuf_len=0;
1458         cbuf_off=0;
1459         sbuf_len=0;
1460         sbuf_off=0;
1461
1462         /* This is an ugly hack that does a lot of assumptions */
1463         /* We do have to handle multi-line responses which may come
1464            in a single packet or not. We therefore have to use
1465            BIO_gets() which does need a buffering BIO. So during
1466            the initial chitchat we do push a buffering BIO into the
1467            chain that is removed again later on to not disturb the
1468            rest of the s_client operation. */
1469         if (starttls_proto == PROTO_SMTP)
1470                 {
1471                 int foundit=0;
1472                 BIO *fbio = BIO_new(BIO_f_buffer());
1473                 BIO_push(fbio, sbio);
1474                 /* wait for multi-line response to end from SMTP */
1475                 do
1476                         {
1477                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1478                         }
1479                 while (mbuf_len>3 && mbuf[3]=='-');
1480                 /* STARTTLS command requires EHLO... */
1481                 BIO_printf(fbio,"EHLO openssl.client.net\r\n");
1482                 (void)BIO_flush(fbio);
1483                 /* wait for multi-line response to end EHLO SMTP response */
1484                 do
1485                         {
1486                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1487                         if (strstr(mbuf,"STARTTLS"))
1488                                 foundit=1;
1489                         }
1490                 while (mbuf_len>3 && mbuf[3]=='-');
1491                 (void)BIO_flush(fbio);
1492                 BIO_pop(fbio);
1493                 BIO_free(fbio);
1494                 if (!foundit)
1495                         BIO_printf(bio_err,
1496                                    "didn't found starttls in server response,"
1497                                    " try anyway...\n");
1498                 BIO_printf(sbio,"STARTTLS\r\n");
1499                 BIO_read(sbio,sbuf,BUFSIZZ);
1500                 }
1501         else if (starttls_proto == PROTO_POP3)
1502                 {
1503                 BIO_read(sbio,mbuf,BUFSIZZ);
1504                 BIO_printf(sbio,"STLS\r\n");
1505                 BIO_read(sbio,sbuf,BUFSIZZ);
1506                 }
1507         else if (starttls_proto == PROTO_IMAP)
1508                 {
1509                 int foundit=0;
1510                 BIO *fbio = BIO_new(BIO_f_buffer());
1511                 BIO_push(fbio, sbio);
1512                 BIO_gets(fbio,mbuf,BUFSIZZ);
1513                 /* STARTTLS command requires CAPABILITY... */
1514                 BIO_printf(fbio,". CAPABILITY\r\n");
1515                 (void)BIO_flush(fbio);
1516                 /* wait for multi-line CAPABILITY response */
1517                 do
1518                         {
1519                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1520                         if (strstr(mbuf,"STARTTLS"))
1521                                 foundit=1;
1522                         }
1523                 while (mbuf_len>3 && mbuf[0]!='.');
1524                 (void)BIO_flush(fbio);
1525                 BIO_pop(fbio);
1526                 BIO_free(fbio);
1527                 if (!foundit)
1528                         BIO_printf(bio_err,
1529                                    "didn't found STARTTLS in server response,"
1530                                    " try anyway...\n");
1531                 BIO_printf(sbio,". STARTTLS\r\n");
1532                 BIO_read(sbio,sbuf,BUFSIZZ);
1533                 }
1534         else if (starttls_proto == PROTO_FTP)
1535                 {
1536                 BIO *fbio = BIO_new(BIO_f_buffer());
1537                 BIO_push(fbio, sbio);
1538                 /* wait for multi-line response to end from FTP */
1539                 do
1540                         {
1541                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1542                         }
1543                 while (mbuf_len>3 && mbuf[3]=='-');
1544                 (void)BIO_flush(fbio);
1545                 BIO_pop(fbio);
1546                 BIO_free(fbio);
1547                 BIO_printf(sbio,"AUTH TLS\r\n");
1548                 BIO_read(sbio,sbuf,BUFSIZZ);
1549                 }
1550         if (starttls_proto == PROTO_XMPP)
1551                 {
1552                 int seen = 0;
1553                 BIO_printf(sbio,"<stream:stream "
1554                     "xmlns:stream='http://etherx.jabber.org/streams' "
1555                     "xmlns='jabber:client' to='%s' version='1.0'>", host);
1556                 seen = BIO_read(sbio,mbuf,BUFSIZZ);
1557                 mbuf[seen] = 0;
1558                 while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'"))
1559                         {
1560                         if (strstr(mbuf, "/stream:features>"))
1561                                 goto shut;
1562                         seen = BIO_read(sbio,mbuf,BUFSIZZ);
1563                         mbuf[seen] = 0;
1564                         }
1565                 BIO_printf(sbio, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
1566                 seen = BIO_read(sbio,sbuf,BUFSIZZ);
1567                 sbuf[seen] = 0;
1568                 if (!strstr(sbuf, "<proceed"))
1569                         goto shut;
1570                 mbuf[0] = 0;
1571                 }
1572
1573         for (;;)
1574                 {
1575                 FD_ZERO(&readfds);
1576                 FD_ZERO(&writefds);
1577
1578                 if ((SSL_version(con) == DTLS1_VERSION) &&
1579                         DTLSv1_get_timeout(con, &timeout))
1580                         timeoutp = &timeout;
1581                 else
1582                         timeoutp = NULL;
1583
1584                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
1585                         {
1586                         in_init=1;
1587                         tty_on=0;
1588                         }
1589                 else
1590                         {
1591                         tty_on=1;
1592                         if (in_init)
1593                                 {
1594                                 in_init=0;
1595 #if 0 /* This test doesn't really work as intended (needs to be fixed) */
1596 #ifndef OPENSSL_NO_TLSEXT
1597                                 if (servername != NULL && !SSL_session_reused(con))
1598                                         {
1599                                         BIO_printf(bio_c_out,"Server did %sacknowledge servername extension.\n",tlsextcbp.ack?"":"not ");
1600                                         }
1601 #endif
1602 #endif
1603                                 if (sess_out)
1604                                         {
1605                                         BIO *stmp = BIO_new_file(sess_out, "w");
1606                                         if (stmp)
1607                                                 {
1608                                                 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
1609                                                 BIO_free(stmp);
1610                                                 }
1611                                         else
1612                                                 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
1613                                         }
1614                                 print_stuff(bio_c_out,con,full_log);
1615                                 if (full_log > 0) full_log--;
1616
1617                                 if (starttls_proto)
1618                                         {
1619                                         BIO_printf(bio_err,"%s",mbuf);
1620                                         /* We don't need to know any more */
1621                                         starttls_proto = PROTO_OFF;
1622                                         }
1623
1624                                 if (reconnect)
1625                                         {
1626                                         reconnect--;
1627                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
1628                                         SSL_shutdown(con);
1629                                         SSL_set_connect_state(con);
1630                                         SHUTDOWN(SSL_get_fd(con));
1631                                         goto re_start;
1632                                         }
1633                                 }
1634                         }
1635
1636                 ssl_pending = read_ssl && SSL_pending(con);
1637
1638                 if (!ssl_pending)
1639                         {
1640 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined (OPENSSL_SYS_BEOS_R5)
1641                         if (tty_on)
1642                                 {
1643                                 if (read_tty)  openssl_fdset(fileno(stdin),&readfds);
1644                                 if (write_tty) openssl_fdset(fileno(stdout),&writefds);
1645                                 }
1646                         if (read_ssl)
1647                                 openssl_fdset(SSL_get_fd(con),&readfds);
1648                         if (write_ssl)
1649                                 openssl_fdset(SSL_get_fd(con),&writefds);
1650 #else
1651                         if(!tty_on || !write_tty) {
1652                                 if (read_ssl)
1653                                         openssl_fdset(SSL_get_fd(con),&readfds);
1654                                 if (write_ssl)
1655                                         openssl_fdset(SSL_get_fd(con),&writefds);
1656                         }
1657 #endif
1658 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
1659                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1660
1661                         /* Note: under VMS with SOCKETSHR the second parameter
1662                          * is currently of type (int *) whereas under other
1663                          * systems it is (void *) if you don't have a cast it
1664                          * will choke the compiler: if you do have a cast then
1665                          * you can either go for (int *) or (void *).
1666                          */
1667 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1668                         /* Under Windows/DOS we make the assumption that we can
1669                          * always write to the tty: therefore if we need to
1670                          * write to the tty we just fall through. Otherwise
1671                          * we timeout the select every second and see if there
1672                          * are any keypresses. Note: this is a hack, in a proper
1673                          * Windows application we wouldn't do this.
1674                          */
1675                         i=0;
1676                         if(!write_tty) {
1677                                 if(read_tty) {
1678                                         tv.tv_sec = 1;
1679                                         tv.tv_usec = 0;
1680                                         i=select(width,(void *)&readfds,(void *)&writefds,
1681                                                  NULL,&tv);
1682 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1683                                         if(!i && (!_kbhit() || !read_tty) ) continue;
1684 #else
1685                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
1686 #endif
1687                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1688                                          NULL,timeoutp);
1689                         }
1690 #elif defined(OPENSSL_SYS_NETWARE)
1691                         if(!write_tty) {
1692                                 if(read_tty) {
1693                                         tv.tv_sec = 1;
1694                                         tv.tv_usec = 0;
1695                                         i=select(width,(void *)&readfds,(void *)&writefds,
1696                                                 NULL,&tv);
1697                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1698                                         NULL,timeoutp);
1699                         }
1700 #elif defined(OPENSSL_SYS_BEOS_R5)
1701                         /* Under BeOS-R5 the situation is similar to DOS */
1702                         i=0;
1703                         stdin_set = 0;
1704                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
1705                         if(!write_tty) {
1706                                 if(read_tty) {
1707                                         tv.tv_sec = 1;
1708                                         tv.tv_usec = 0;
1709                                         i=select(width,(void *)&readfds,(void *)&writefds,
1710                                                  NULL,&tv);
1711                                         if (read(fileno(stdin), sbuf, 0) >= 0)
1712                                                 stdin_set = 1;
1713                                         if (!i && (stdin_set != 1 || !read_tty))
1714                                                 continue;
1715                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1716                                          NULL,timeoutp);
1717                         }
1718                         (void)fcntl(fileno(stdin), F_SETFL, 0);
1719 #else
1720                         i=select(width,(void *)&readfds,(void *)&writefds,
1721                                  NULL,timeoutp);
1722 #endif
1723                         if ( i < 0)
1724                                 {
1725                                 BIO_printf(bio_err,"bad select %d\n",
1726                                 get_last_socket_error());
1727                                 goto shut;
1728                                 /* goto end; */
1729                                 }
1730                         }
1731
1732                 if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
1733                         {
1734                         BIO_printf(bio_err,"TIMEOUT occured\n");
1735                         }
1736
1737                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
1738                         {
1739                         k=SSL_write(con,&(cbuf[cbuf_off]),
1740                                 (unsigned int)cbuf_len);
1741                         switch (SSL_get_error(con,k))
1742                                 {
1743                         case SSL_ERROR_NONE:
1744                                 cbuf_off+=k;
1745                                 cbuf_len-=k;
1746                                 if (k <= 0) goto end;
1747                                 /* we have done a  write(con,NULL,0); */
1748                                 if (cbuf_len <= 0)
1749                                         {
1750                                         read_tty=1;
1751                                         write_ssl=0;
1752                                         }
1753                                 else /* if (cbuf_len > 0) */
1754                                         {
1755                                         read_tty=0;
1756                                         write_ssl=1;
1757                                         }
1758                                 break;
1759                         case SSL_ERROR_WANT_WRITE:
1760                                 BIO_printf(bio_c_out,"write W BLOCK\n");
1761                                 write_ssl=1;
1762                                 read_tty=0;
1763                                 break;
1764                         case SSL_ERROR_WANT_READ:
1765                                 BIO_printf(bio_c_out,"write R BLOCK\n");
1766                                 write_tty=0;
1767                                 read_ssl=1;
1768                                 write_ssl=0;
1769                                 break;
1770                         case SSL_ERROR_WANT_X509_LOOKUP:
1771                                 BIO_printf(bio_c_out,"write X BLOCK\n");
1772                                 break;
1773                         case SSL_ERROR_ZERO_RETURN:
1774                                 if (cbuf_len != 0)
1775                                         {
1776                                         BIO_printf(bio_c_out,"shutdown\n");
1777                                         ret = 0;
1778                                         goto shut;
1779                                         }
1780                                 else
1781                                         {
1782                                         read_tty=1;
1783                                         write_ssl=0;
1784                                         break;
1785                                         }
1786
1787                         case SSL_ERROR_SYSCALL:
1788                                 if ((k != 0) || (cbuf_len != 0))
1789                                         {
1790                                         BIO_printf(bio_err,"write:errno=%d\n",
1791                                                 get_last_socket_error());
1792                                         goto shut;
1793                                         }
1794                                 else
1795                                         {
1796                                         read_tty=1;
1797                                         write_ssl=0;
1798                                         }
1799                                 break;
1800                         case SSL_ERROR_SSL:
1801                                 ERR_print_errors(bio_err);
1802                                 goto shut;
1803                                 }
1804                         }
1805 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
1806                 /* Assume Windows/DOS/BeOS can always write */
1807                 else if (!ssl_pending && write_tty)
1808 #else
1809                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
1810 #endif
1811                         {
1812 #ifdef CHARSET_EBCDIC
1813                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
1814 #endif
1815                         i=raw_write_stdout(&(sbuf[sbuf_off]),sbuf_len);
1816
1817                         if (i <= 0)
1818                                 {
1819                                 BIO_printf(bio_c_out,"DONE\n");
1820                                 ret = 0;
1821                                 goto shut;
1822                                 /* goto end; */
1823                                 }
1824
1825                         sbuf_len-=i;;
1826                         sbuf_off+=i;
1827                         if (sbuf_len <= 0)
1828                                 {
1829                                 read_ssl=1;
1830                                 write_tty=0;
1831                                 }
1832                         }
1833                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
1834                         {
1835 #ifdef RENEG
1836 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
1837 #endif
1838 #if 1
1839                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
1840 #else
1841 /* Demo for pending and peek :-) */
1842                         k=SSL_read(con,sbuf,16);
1843 { char zbuf[10240];
1844 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
1845 }
1846 #endif
1847
1848                         switch (SSL_get_error(con,k))
1849                                 {
1850                         case SSL_ERROR_NONE:
1851                                 if (k <= 0)
1852                                         goto end;
1853                                 sbuf_off=0;
1854                                 sbuf_len=k;
1855
1856                                 read_ssl=0;
1857                                 write_tty=1;
1858                                 break;
1859                         case SSL_ERROR_WANT_WRITE:
1860                                 BIO_printf(bio_c_out,"read W BLOCK\n");
1861                                 write_ssl=1;
1862                                 read_tty=0;
1863                                 break;
1864                         case SSL_ERROR_WANT_READ:
1865                                 BIO_printf(bio_c_out,"read R BLOCK\n");
1866                                 write_tty=0;
1867                                 read_ssl=1;
1868                                 if ((read_tty == 0) && (write_ssl == 0))
1869                                         write_ssl=1;
1870                                 break;
1871                         case SSL_ERROR_WANT_X509_LOOKUP:
1872                                 BIO_printf(bio_c_out,"read X BLOCK\n");
1873                                 break;
1874                         case SSL_ERROR_SYSCALL:
1875                                 ret=get_last_socket_error();
1876                                 BIO_printf(bio_err,"read:errno=%d\n",ret);
1877                                 goto shut;
1878                         case SSL_ERROR_ZERO_RETURN:
1879                                 BIO_printf(bio_c_out,"closed\n");
1880                                 ret=0;
1881                                 goto shut;
1882                         case SSL_ERROR_SSL:
1883                                 ERR_print_errors(bio_err);
1884                                 goto shut;
1885                                 /* break; */
1886                                 }
1887                         }
1888
1889 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1890 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1891                 else if (_kbhit())
1892 #else
1893                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
1894 #endif
1895 #elif defined (OPENSSL_SYS_NETWARE)
1896                 else if (_kbhit())
1897 #elif defined(OPENSSL_SYS_BEOS_R5)
1898                 else if (stdin_set)
1899 #else
1900                 else if (FD_ISSET(fileno(stdin),&readfds))
1901 #endif
1902                         {
1903                         if (crlf)
1904                                 {
1905                                 int j, lf_num;
1906
1907                                 i=raw_read_stdin(cbuf,BUFSIZZ/2);
1908                                 lf_num = 0;
1909                                 /* both loops are skipped when i <= 0 */
1910                                 for (j = 0; j < i; j++)
1911                                         if (cbuf[j] == '\n')
1912                                                 lf_num++;
1913                                 for (j = i-1; j >= 0; j--)
1914                                         {
1915                                         cbuf[j+lf_num] = cbuf[j];
1916                                         if (cbuf[j] == '\n')
1917                                                 {
1918                                                 lf_num--;
1919                                                 i++;
1920                                                 cbuf[j+lf_num] = '\r';
1921                                                 }
1922                                         }
1923                                 assert(lf_num == 0);
1924                                 }
1925                         else
1926                                 i=raw_read_stdin(cbuf,BUFSIZZ);
1927
1928                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
1929                                 {
1930                                 BIO_printf(bio_err,"DONE\n");
1931                                 ret=0;
1932                                 goto shut;
1933                                 }
1934
1935                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
1936                                 {
1937                                 BIO_printf(bio_err,"RENEGOTIATING\n");
1938                                 SSL_renegotiate(con);
1939                                 cbuf_len=0;
1940                                 }
1941 #ifndef OPENSSL_NO_HEARTBEATS
1942                         else if ((!c_ign_eof) && (cbuf[0] == 'B'))
1943                                 {
1944                                 BIO_printf(bio_err,"HEARTBEATING\n");
1945                                 SSL_heartbeat(con);
1946                                 cbuf_len=0;
1947                                 }
1948 #endif
1949                         else
1950                                 {
1951                                 cbuf_len=i;
1952                                 cbuf_off=0;
1953 #ifdef CHARSET_EBCDIC
1954                                 ebcdic2ascii(cbuf, cbuf, i);
1955 #endif
1956                                 }
1957
1958                         write_ssl=1;
1959                         read_tty=0;
1960                         }
1961                 }
1962
1963         ret=0;
1964 shut:
1965         if (in_init)
1966                 print_stuff(bio_c_out,con,full_log);
1967         SSL_shutdown(con);
1968         SHUTDOWN(SSL_get_fd(con));
1969 end:
1970         if (con != NULL)
1971                 {
1972                 if (prexit != 0)
1973                         print_stuff(bio_c_out,con,1);
1974                 SSL_free(con);
1975                 }
1976 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
1977         if (next_proto.data)
1978                 OPENSSL_free(next_proto.data);
1979 #endif
1980         if (ctx != NULL) SSL_CTX_free(ctx);
1981         if (cert)
1982                 X509_free(cert);
1983         if (key)
1984                 EVP_PKEY_free(key);
1985         if (pass)
1986                 OPENSSL_free(pass);
1987         ssl_excert_free(exc);
1988         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
1989         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
1990         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
1991         if (bio_c_out != NULL)
1992                 {
1993                 BIO_free(bio_c_out);
1994                 bio_c_out=NULL;
1995                 }
1996         if (bio_c_msg != NULL)
1997                 {
1998                 BIO_free(bio_c_msg);
1999                 bio_c_msg=NULL;
2000                 }
2001         apps_shutdown();
2002         OPENSSL_EXIT(ret);
2003         }
2004
2005
2006 static void print_stuff(BIO *bio, SSL *s, int full)
2007         {
2008         X509 *peer=NULL;
2009         char *p;
2010         static const char *space="                ";
2011         char buf[BUFSIZ];
2012         STACK_OF(X509) *sk;
2013         STACK_OF(X509_NAME) *sk2;
2014         const SSL_CIPHER *c;
2015         X509_NAME *xn;
2016         int j,i;
2017 #ifndef OPENSSL_NO_COMP
2018         const COMP_METHOD *comp, *expansion;
2019 #endif
2020         unsigned char *exportedkeymat;
2021
2022         if (full)
2023                 {
2024                 int got_a_chain = 0;
2025
2026                 sk=SSL_get_peer_cert_chain(s);
2027                 if (sk != NULL)
2028                         {
2029                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
2030
2031                         BIO_printf(bio,"---\nCertificate chain\n");
2032                         for (i=0; i<sk_X509_num(sk); i++)
2033                                 {
2034                                 X509_NAME_oneline(X509_get_subject_name(
2035                                         sk_X509_value(sk,i)),buf,sizeof buf);
2036                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
2037                                 X509_NAME_oneline(X509_get_issuer_name(
2038                                         sk_X509_value(sk,i)),buf,sizeof buf);
2039                                 BIO_printf(bio,"   i:%s\n",buf);
2040                                 if (c_showcerts)
2041                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
2042                                 }
2043                         }
2044
2045                 BIO_printf(bio,"---\n");
2046                 peer=SSL_get_peer_certificate(s);
2047                 if (peer != NULL)
2048                         {
2049                         BIO_printf(bio,"Server certificate\n");
2050                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
2051                                 PEM_write_bio_X509(bio,peer);
2052                         X509_NAME_oneline(X509_get_subject_name(peer),
2053                                 buf,sizeof buf);
2054                         BIO_printf(bio,"subject=%s\n",buf);
2055                         X509_NAME_oneline(X509_get_issuer_name(peer),
2056                                 buf,sizeof buf);
2057                         BIO_printf(bio,"issuer=%s\n",buf);
2058                         }
2059                 else
2060                         BIO_printf(bio,"no peer certificate available\n");
2061
2062                 sk2=SSL_get_client_CA_list(s);
2063                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
2064                         {
2065                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
2066                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
2067                                 {
2068                                 xn=sk_X509_NAME_value(sk2,i);
2069                                 X509_NAME_oneline(xn,buf,sizeof(buf));
2070                                 BIO_write(bio,buf,strlen(buf));
2071                                 BIO_write(bio,"\n",1);
2072                                 }
2073                         }
2074                 else
2075                         {
2076                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
2077                         }
2078                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
2079                 if (p != NULL)
2080                         {
2081                         /* This works only for SSL 2.  In later protocol
2082                          * versions, the client does not know what other
2083                          * ciphers (in addition to the one to be used
2084                          * in the current connection) the server supports. */
2085
2086                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
2087                         j=i=0;
2088                         while (*p)
2089                                 {
2090                                 if (*p == ':')
2091                                         {
2092                                         BIO_write(bio,space,15-j%25);
2093                                         i++;
2094                                         j=0;
2095                                         BIO_write(bio,((i%3)?" ":"\n"),1);
2096                                         }
2097                                 else
2098                                         {
2099                                         BIO_write(bio,p,1);
2100                                         j++;
2101                                         }
2102                                 p++;
2103                                 }
2104                         BIO_write(bio,"\n",1);
2105                         }
2106
2107                 ssl_print_sigalgs(bio, s);
2108                 ssl_print_tmp_key(bio, s);
2109
2110                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
2111                         BIO_number_read(SSL_get_rbio(s)),
2112                         BIO_number_written(SSL_get_wbio(s)));
2113                 }
2114         BIO_printf(bio,(SSL_cache_hit(s)?"---\nReused, ":"---\nNew, "));
2115         c=SSL_get_current_cipher(s);
2116         BIO_printf(bio,"%s, Cipher is %s\n",
2117                 SSL_CIPHER_get_version(c),
2118                 SSL_CIPHER_get_name(c));
2119         if (peer != NULL) {
2120                 EVP_PKEY *pktmp;
2121                 pktmp = X509_get_pubkey(peer);
2122                 BIO_printf(bio,"Server public key is %d bit\n",
2123                                                          EVP_PKEY_bits(pktmp));
2124                 EVP_PKEY_free(pktmp);
2125         }
2126         BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
2127                         SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
2128 #ifndef OPENSSL_NO_COMP
2129         comp=SSL_get_current_compression(s);
2130         expansion=SSL_get_current_expansion(s);
2131         BIO_printf(bio,"Compression: %s\n",
2132                 comp ? SSL_COMP_get_name(comp) : "NONE");
2133         BIO_printf(bio,"Expansion: %s\n",
2134                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
2135 #endif
2136
2137 #ifdef SSL_DEBUG
2138         {
2139         /* Print out local port of connection: useful for debugging */
2140         int sock;
2141         struct sockaddr_in ladd;
2142         socklen_t ladd_size = sizeof(ladd);
2143         sock = SSL_get_fd(s);
2144         getsockname(sock, (struct sockaddr *)&ladd, &ladd_size);
2145         BIO_printf(bio_c_out, "LOCAL PORT is %u\n", ntohs(ladd.sin_port));
2146         }
2147 #endif
2148
2149 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2150         if (next_proto.status != -1) {
2151                 const unsigned char *proto;
2152                 unsigned int proto_len;
2153                 SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
2154                 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
2155                 BIO_write(bio, proto, proto_len);
2156                 BIO_write(bio, "\n", 1);
2157         }
2158 #endif
2159
2160         {
2161         SRTP_PROTECTION_PROFILE *srtp_profile=SSL_get_selected_srtp_profile(s);
2162
2163         if(srtp_profile)
2164                 BIO_printf(bio,"SRTP Extension negotiated, profile=%s\n",
2165                            srtp_profile->name);
2166         }
2167
2168         SSL_SESSION_print(bio,SSL_get_session(s));
2169         if (keymatexportlabel != NULL)
2170                 {
2171                 BIO_printf(bio, "Keying material exporter:\n");
2172                 BIO_printf(bio, "    Label: '%s'\n", keymatexportlabel);
2173                 BIO_printf(bio, "    Length: %i bytes\n", keymatexportlen);
2174                 exportedkeymat = OPENSSL_malloc(keymatexportlen);
2175                 if (exportedkeymat != NULL)
2176                         {
2177                         if (!SSL_export_keying_material(s, exportedkeymat,
2178                                                         keymatexportlen,
2179                                                         keymatexportlabel,
2180                                                         strlen(keymatexportlabel),
2181                                                         NULL, 0, 0))
2182                                 {
2183                                 BIO_printf(bio, "    Error\n");
2184                                 }
2185                         else
2186                                 {
2187                                 BIO_printf(bio, "    Keying material: ");
2188                                 for (i=0; i<keymatexportlen; i++)
2189                                         BIO_printf(bio, "%02X",
2190                                                    exportedkeymat[i]);
2191                                 BIO_printf(bio, "\n");
2192                                 }
2193                         OPENSSL_free(exportedkeymat);
2194                         }
2195                 }
2196         BIO_printf(bio,"---\n");
2197         if (peer != NULL)
2198                 X509_free(peer);
2199         /* flush, or debugging output gets mixed with http response */
2200         (void)BIO_flush(bio);
2201         }
2202
2203 #ifndef OPENSSL_NO_TLSEXT
2204
2205 static int ocsp_resp_cb(SSL *s, void *arg)
2206         {
2207         const unsigned char *p;
2208         int len;
2209         OCSP_RESPONSE *rsp;
2210         len = SSL_get_tlsext_status_ocsp_resp(s, &p);
2211         BIO_puts(arg, "OCSP response: ");
2212         if (!p)
2213                 {
2214                 BIO_puts(arg, "no response sent\n");
2215                 return 1;
2216                 }
2217         rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
2218         if (!rsp)
2219                 {
2220                 BIO_puts(arg, "response parse error\n");
2221                 BIO_dump_indent(arg, (char *)p, len, 4);
2222                 return 0;
2223                 }
2224         BIO_puts(arg, "\n======================================\n");
2225         OCSP_RESPONSE_print(arg, rsp, 0);
2226         BIO_puts(arg, "======================================\n");
2227         OCSP_RESPONSE_free(rsp);
2228         return 1;
2229         }
2230
2231 static int audit_proof_cb(SSL *s, void *arg)
2232         {
2233         const unsigned char *proof;
2234         size_t proof_len;
2235         size_t i;
2236         SSL_SESSION *sess = SSL_get_session(s);
2237
2238         proof = SSL_SESSION_get_tlsext_authz_server_audit_proof(sess,
2239                                                                 &proof_len);
2240         if (proof != NULL)
2241                 {
2242                 BIO_printf(bio_c_out, "Audit proof: ");
2243                 for (i = 0; i < proof_len; ++i)
2244                         BIO_printf(bio_c_out, "%02X", proof[i]);
2245                 BIO_printf(bio_c_out, "\n");
2246                 }
2247         else
2248                 {
2249                 BIO_printf(bio_c_out, "No audit proof found.\n");
2250                 }
2251         return 1;
2252         }
2253 #endif