apps/s_client.c

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