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 #ifndef OPENSSL_NO_KRB5
 543         KSSL_CTX *kctx;
 544 #endif
 545         int s,k,width,state=0;
 546         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
 547         int cbuf_len,cbuf_off;
 548         int sbuf_len,sbuf_off;
 549         fd_set readfds,writefds;
 550         short port=PORT;
 551         int full_log=1;
 552         char *host=SSL_HOST_NAME;
 553         char *cert_file=NULL,*key_file=NULL;
 554         int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
 555         char *passarg = NULL, *pass = NULL;
 556         X509 *cert = NULL;
 557         EVP_PKEY *key = NULL;
 558         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 559         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 560         int crlf=0;
 561         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 562         SSL_CTX *ctx=NULL;
 563         int ret=1,in_init=1,i,nbio_test=0;
 564         int starttls_proto = PROTO_OFF;
 565         int prexit = 0;
 566         X509_VERIFY_PARAM *vpm = NULL;
 567         int badarg = 0;
 568         const SSL_METHOD *meth=NULL;
 569         int socket_type=SOCK_STREAM;
 570         BIO *sbio;
 571         char *inrand=NULL;
 572         int mbuf_len=0;
 573         struct timeval timeout, *timeoutp;
 574 #ifndef OPENSSL_NO_ENGINE
 575         char *engine_id=NULL;
 576         char *ssl_client_engine_id=NULL;
 577         ENGINE *ssl_client_engine=NULL;
 578 #endif
 579         ENGINE *e=NULL;
 580 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
 581         struct timeval tv;
 582 #if defined(OPENSSL_SYS_BEOS_R5)
 583         int stdin_set = 0;
 584 #endif
 585 #endif
 586 #ifndef OPENSSL_NO_TLSEXT
 587         char *servername = NULL;
 588         tlsextctx tlsextcbp =
 589         {NULL,0};
 590 # ifndef OPENSSL_NO_NEXTPROTONEG
 591         const char *next_proto_neg_in = NULL;
 592 # endif
 593 #endif
 594         char *sess_in = NULL;
 595         char *sess_out = NULL;
 596         struct sockaddr peer;
 597         int peerlen = sizeof(peer);
 598         int enable_timeouts = 0 ;
 599         long socket_mtu = 0;
 600 #ifndef OPENSSL_NO_JPAKE
 601         char *jpake_secret = NULL;
 602 #endif
 603 #ifndef OPENSSL_NO_SRP
 604         char * srppass = NULL;
 605         int srp_lateuser = 0;
 606         SRP_ARG srp_arg = {NULL,NULL,0,0,0,1024};
 607 #endif
 608
 609 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 610         meth=SSLv23_client_method();
 611 #elif !defined(OPENSSL_NO_SSL3)
 612         meth=SSLv3_client_method();
 613 #elif !defined(OPENSSL_NO_SSL2)
 614         meth=SSLv2_client_method();
 615 #endif
 616
 617         apps_startup();
 618         c_Pause=0;
 619         c_quiet=0;
 620         c_ign_eof=0;
 621         c_debug=0;
 622         c_msg=0;
 623         c_showcerts=0;
 624
 625         if (bio_err == NULL)
 626                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 627
 628         if (!load_config(bio_err, NULL))
 629                 goto end;
 630
 631         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 632                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 633                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
 634                 {
 635                 BIO_printf(bio_err,"out of memory\n");
 636                 goto end;
 637                 }
 638
 639         verify_depth=0;
 640         verify_error=X509_V_OK;
 641 #ifdef FIONBIO
 642         c_nbio=0;
 643 #endif
 644
 645         argc--;
 646         argv++;
 647         while (argc >= 1)
 648                 {
 649                 if      (strcmp(*argv,"-host") == 0)
 650                         {
 651                         if (--argc < 1) goto bad;
 652                         host= *(++argv);
 653                         }
 654                 else if (strcmp(*argv,"-port") == 0)
 655                         {
 656                         if (--argc < 1) goto bad;
 657                         port=atoi(*(++argv));
 658                         if (port == 0) goto bad;
 659                         }
 660                 else if (strcmp(*argv,"-connect") == 0)
 661                         {
 662                         if (--argc < 1) goto bad;
 663                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 664                                 goto bad;
 665                         }
 666                 else if (strcmp(*argv,"-verify") == 0)
 667                         {
 668                         verify=SSL_VERIFY_PEER;
 669                         if (--argc < 1) goto bad;
 670                         verify_depth=atoi(*(++argv));
 671                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 672                         }
 673                 else if (strcmp(*argv,"-cert") == 0)
 674                         {
 675                         if (--argc < 1) goto bad;
 676                         cert_file= *(++argv);
 677                         }
 678                 else if (strcmp(*argv,"-sess_out") == 0)
 679                         {
 680                         if (--argc < 1) goto bad;
 681                         sess_out = *(++argv);
 682                         }
 683                 else if (strcmp(*argv,"-sess_in") == 0)
 684                         {
 685                         if (--argc < 1) goto bad;
 686                         sess_in = *(++argv);
 687                         }
 688                 else if (strcmp(*argv,"-certform") == 0)
 689                         {
 690                         if (--argc < 1) goto bad;
 691                         cert_format = str2fmt(*(++argv));
 692                         }
 693                 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm))
 694                         {
 695                         if (badarg)
 696                                 goto bad;
 697                         continue;
 698                         }
 699                 else if (strcmp(*argv,"-verify_return_error") == 0)
 700                         verify_return_error = 1;
 701                 else if (strcmp(*argv,"-prexit") == 0)
 702                         prexit=1;
 703                 else if (strcmp(*argv,"-crlf") == 0)
 704                         crlf=1;
 705                 else if (strcmp(*argv,"-quiet") == 0)
 706                         {
 707                         c_quiet=1;
 708                         c_ign_eof=1;
 709                         }
 710                 else if (strcmp(*argv,"-ign_eof") == 0)
 711                         c_ign_eof=1;
 712                 else if (strcmp(*argv,"-no_ign_eof") == 0)
 713                         c_ign_eof=0;
 714                 else if (strcmp(*argv,"-pause") == 0)
 715                         c_Pause=1;
 716                 else if (strcmp(*argv,"-debug") == 0)
 717                         c_debug=1;
 718 #ifndef OPENSSL_NO_TLSEXT
 719                 else if (strcmp(*argv,"-tlsextdebug") == 0)
 720                         c_tlsextdebug=1;
 721                 else if (strcmp(*argv,"-status") == 0)
 722                         c_status_req=1;
 723 #endif
 724 #ifdef WATT32
 725                 else if (strcmp(*argv,"-wdebug") == 0)
 726                         dbug_init();
 727 #endif
 728                 else if (strcmp(*argv,"-msg") == 0)
 729                         c_msg=1;
 730                 else if (strcmp(*argv,"-showcerts") == 0)
 731                         c_showcerts=1;
 732                 else if (strcmp(*argv,"-nbio_test") == 0)
 733                         nbio_test=1;
 734                 else if (strcmp(*argv,"-state") == 0)
 735                         state=1;
 736 #ifndef OPENSSL_NO_PSK
 737                 else if (strcmp(*argv,"-psk_identity") == 0)
 738                         {
 739                         if (--argc < 1) goto bad;
 740                         psk_identity=*(++argv);
 741                         }
 742                 else if (strcmp(*argv,"-psk") == 0)
 743                         {
 744                         size_t j;
 745
 746                         if (--argc < 1) goto bad;
 747                         psk_key=*(++argv);
 748                         for (j = 0; j < strlen(psk_key); j++)
 749                                 {
 750                                 if (isxdigit((int)psk_key[j]))
 751                                         continue;
 752                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
 753                                 goto bad;
 754                                 }
 755                         }
 756 #endif
 757 #ifndef OPENSSL_NO_SRP
 758                 else if (strcmp(*argv,"-srpuser") == 0)
 759                         {
 760                         if (--argc < 1) goto bad;
 761                         srp_arg.srplogin= *(++argv);
 762                         meth=TLSv1_client_method();
 763                         }
 764                 else if (strcmp(*argv,"-srppass") == 0)
 765                         {
 766                         if (--argc < 1) goto bad;
 767                         srppass= *(++argv);
 768                         meth=TLSv1_client_method();
 769                         }
 770                 else if (strcmp(*argv,"-srp_strength") == 0)
 771                         {
 772                         if (--argc < 1) goto bad;
 773                         srp_arg.strength=atoi(*(++argv));
 774                         BIO_printf(bio_err,"SRP minimal length for N is %d\n",srp_arg.strength);
 775                         meth=TLSv1_client_method();
 776                         }
 777                 else if (strcmp(*argv,"-srp_lateuser") == 0)
 778                         {
 779                         srp_lateuser= 1;
 780                         meth=TLSv1_client_method();
 781                         }
 782                 else if (strcmp(*argv,"-srp_moregroups") == 0)
 783                         {
 784                         srp_arg.amp=1;
 785                         meth=TLSv1_client_method();
 786                         }
 787 #endif
 788 #ifndef OPENSSL_NO_SSL2
 789                 else if (strcmp(*argv,"-ssl2") == 0)
 790                         meth=SSLv2_client_method();
 791 #endif
 792 #ifndef OPENSSL_NO_SSL3
 793                 else if (strcmp(*argv,"-ssl3") == 0)
 794                         meth=SSLv3_client_method();
 795 #endif
 796 #ifndef OPENSSL_NO_TLS1
 797                 else if (strcmp(*argv,"-tls1_2") == 0)
 798                         meth=TLSv1_2_client_method();
 799                 else if (strcmp(*argv,"-tls1_1") == 0)
 800                         meth=TLSv1_1_client_method();
 801                 else if (strcmp(*argv,"-tls1") == 0)
 802                         meth=TLSv1_client_method();
 803 #endif
 804 #ifndef OPENSSL_NO_DTLS1
 805                 else if (strcmp(*argv,"-dtls1") == 0)
 806                         {
 807                         meth=DTLSv1_client_method();
 808                         socket_type=SOCK_DGRAM;
 809                         }
 810                 else if (strcmp(*argv,"-timeout") == 0)
 811                         enable_timeouts=1;
 812                 else if (strcmp(*argv,"-mtu") == 0)
 813                         {
 814                         if (--argc < 1) goto bad;
 815                         socket_mtu = atol(*(++argv));
 816                         }
 817 #endif
 818                 else if (strcmp(*argv,"-bugs") == 0)
 819                         bugs=1;
 820                 else if (strcmp(*argv,"-keyform") == 0)
 821                         {
 822                         if (--argc < 1) goto bad;
 823                         key_format = str2fmt(*(++argv));
 824                         }
 825                 else if (strcmp(*argv,"-pass") == 0)
 826                         {
 827                         if (--argc < 1) goto bad;
 828                         passarg = *(++argv);
 829                         }
 830                 else if (strcmp(*argv,"-key") == 0)
 831                         {
 832                         if (--argc < 1) goto bad;
 833                         key_file= *(++argv);
 834                         }
 835                 else if (strcmp(*argv,"-reconnect") == 0)
 836                         {
 837                         reconnect=5;
 838                         }
 839                 else if (strcmp(*argv,"-CApath") == 0)
 840                         {
 841                         if (--argc < 1) goto bad;
 842                         CApath= *(++argv);
 843                         }
 844                 else if (strcmp(*argv,"-CAfile") == 0)
 845                         {
 846                         if (--argc < 1) goto bad;
 847                         CAfile= *(++argv);
 848                         }
 849                 else if (strcmp(*argv,"-no_tls1_2") == 0)
 850                         off|=SSL_OP_NO_TLSv1_2;
 851                 else if (strcmp(*argv,"-no_tls1_1") == 0)
 852                         off|=SSL_OP_NO_TLSv1_1;
 853                 else if (strcmp(*argv,"-no_tls1") == 0)
 854                         off|=SSL_OP_NO_TLSv1;
 855                 else if (strcmp(*argv,"-no_ssl3") == 0)
 856                         off|=SSL_OP_NO_SSLv3;
 857                 else if (strcmp(*argv,"-no_ssl2") == 0)
 858                         off|=SSL_OP_NO_SSLv2;
 859                 else if (strcmp(*argv,"-no_comp") == 0)
 860                         { off|=SSL_OP_NO_COMPRESSION; }
 861 #ifndef OPENSSL_NO_TLSEXT
 862                 else if (strcmp(*argv,"-no_ticket") == 0)
 863                         { off|=SSL_OP_NO_TICKET; }
 864 # ifndef OPENSSL_NO_NEXTPROTONEG
 865                 else if (strcmp(*argv,"-nextprotoneg") == 0)
 866                         {
 867                         if (--argc < 1) goto bad;
 868                         next_proto_neg_in = *(++argv);
 869                         }
 870 # endif
 871 #endif
 872                 else if (strcmp(*argv,"-serverpref") == 0)
 873                         off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
 874                 else if (strcmp(*argv,"-legacy_renegotiation") == 0)
 875                         off|=SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION;
 876                 else if (strcmp(*argv,"-legacy_server_connect") == 0)
 877                         { off|=SSL_OP_LEGACY_SERVER_CONNECT; }
 878                 else if (strcmp(*argv,"-no_legacy_server_connect") == 0)
 879                         { clr|=SSL_OP_LEGACY_SERVER_CONNECT; }
 880                 else if (strcmp(*argv,"-cipher") == 0)
 881                         {
 882                         if (--argc < 1) goto bad;
 883                         cipher= *(++argv);
 884                         }
 885 #ifdef FIONBIO
 886                 else if (strcmp(*argv,"-nbio") == 0)
 887                         { c_nbio=1; }
 888 #endif
 889                 else if (strcmp(*argv,"-starttls") == 0)
 890                         {
 891                         if (--argc < 1) goto bad;
 892                         ++argv;
 893                         if (strcmp(*argv,"smtp") == 0)
 894                                 starttls_proto = PROTO_SMTP;
 895                         else if (strcmp(*argv,"pop3") == 0)
 896                                 starttls_proto = PROTO_POP3;
 897                         else if (strcmp(*argv,"imap") == 0)
 898                                 starttls_proto = PROTO_IMAP;
 899                         else if (strcmp(*argv,"ftp") == 0)
 900                                 starttls_proto = PROTO_FTP;
 901                         else if (strcmp(*argv, "xmpp") == 0)
 902                                 starttls_proto = PROTO_XMPP;
 903                         else
 904                                 goto bad;
 905                         }
 906 #ifndef OPENSSL_NO_ENGINE
 907                 else if (strcmp(*argv,"-engine") == 0)
 908                         {
 909                         if (--argc < 1) goto bad;
 910                         engine_id = *(++argv);
 911                         }
 912                 else if (strcmp(*argv,"-ssl_client_engine") == 0)
 913                         {
 914                         if (--argc < 1) goto bad;
 915                         ssl_client_engine_id = *(++argv);
 916                         }
 917 #endif
 918                 else if (strcmp(*argv,"-rand") == 0)
 919                         {
 920                         if (--argc < 1) goto bad;
 921                         inrand= *(++argv);
 922                         }
 923 #ifndef OPENSSL_NO_TLSEXT
 924                 else if (strcmp(*argv,"-servername") == 0)
 925                         {
 926                         if (--argc < 1) goto bad;
 927                         servername= *(++argv);
 928                         /* meth=TLSv1_client_method(); */
 929                         }
 930 #endif
 931 #ifndef OPENSSL_NO_JPAKE
 932                 else if (strcmp(*argv,"-jpake") == 0)
 933                         {
 934                         if (--argc < 1) goto bad;
 935                         jpake_secret = *++argv;
 936                         }
 937 #endif
 938                 else
 939                         {
 940                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 941                         badop=1;
 942                         break;
 943                         }
 944                 argc--;
 945                 argv++;
 946                 }
 947         if (badop)
 948                 {
 949 bad:
 950                 sc_usage();
 951                 goto end;
 952                 }
 953
 954 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
 955         if (jpake_secret)
 956                 {
 957                 if (psk_key)
 958                         {
 959                         BIO_printf(bio_err,
 960                                    "Can't use JPAKE and PSK together\n");
 961                         goto end;
 962                         }
 963                 psk_identity = "JPAKE";
 964                 }
 965
 966         if (cipher)
 967                 {
 968                 BIO_printf(bio_err, "JPAKE sets cipher to PSK\n");
 969                 goto end;
 970                 }
 971         cipher = "PSK";
 972 #endif
 973
 974         OpenSSL_add_ssl_algorithms();
 975         SSL_load_error_strings();
 976
 977 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
 978         next_proto.status = -1;
 979         if (next_proto_neg_in)
 980                 {
 981                 next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in);
 982                 if (next_proto.data == NULL)
 983                         {
 984                         BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
 985                         goto end;
 986                         }
 987                 }
 988         else
 989                 next_proto.data = NULL;
 990 #endif
 991
 992 #ifndef OPENSSL_NO_ENGINE
 993         e = setup_engine(bio_err, engine_id, 1);
 994         if (ssl_client_engine_id)
 995                 {
 996                 ssl_client_engine = ENGINE_by_id(ssl_client_engine_id);
 997                 if (!ssl_client_engine)
 998                         {
 999                         BIO_printf(bio_err,
1000                                         "Error getting client auth engine\n");
1001                         goto end;
1002                         }
1003                 }
1004
1005 #endif
1006         if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
1007                 {
1008                 BIO_printf(bio_err, "Error getting password\n");
1009                 goto end;
1010                 }
1011
1012         if (key_file == NULL)
1013                 key_file = cert_file;
1014
1015
1016         if (key_file)
1017
1018                 {
1019
1020                 key = load_key(bio_err, key_file, key_format, 0, pass, e,
1021                                "client certificate private key file");
1022                 if (!key)
1023                         {
1024                         ERR_print_errors(bio_err);
1025                         goto end;
1026                         }
1027
1028                 }
1029
1030         if (cert_file)
1031
1032                 {
1033                 cert = load_cert(bio_err,cert_file,cert_format,
1034                                 NULL, e, "client certificate file");
1035
1036                 if (!cert)
1037                         {
1038                         ERR_print_errors(bio_err);
1039                         goto end;
1040                         }
1041                 }
1042
1043         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1044                 && !RAND_status())
1045                 {
1046                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
1047                 }
1048         if (inrand != NULL)
1049                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
1050                         app_RAND_load_files(inrand));
1051
1052         if (bio_c_out == NULL)
1053                 {
1054                 if (c_quiet && !c_debug && !c_msg)
1055                         {
1056                         bio_c_out=BIO_new(BIO_s_null());
1057                         }
1058                 else
1059                         {
1060                         if (bio_c_out == NULL)
1061                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
1062                         }
1063                 }
1064
1065 #ifndef OPENSSL_NO_SRP
1066         if(!app_passwd(bio_err, srppass, NULL, &srp_arg.srppassin, NULL))
1067                 {
1068                 BIO_printf(bio_err, "Error getting password\n");
1069                 goto end;
1070                 }
1071 #endif
1072
1073         ctx=SSL_CTX_new(meth);
1074         if (ctx == NULL)
1075                 {
1076                 ERR_print_errors(bio_err);
1077                 goto end;
1078                 }
1079
1080         if (vpm)
1081                 SSL_CTX_set1_param(ctx, vpm);
1082
1083 #ifndef OPENSSL_NO_ENGINE
1084         if (ssl_client_engine)
1085                 {
1086                 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine))
1087                         {
1088                         BIO_puts(bio_err, "Error setting client auth engine\n");
1089                         ERR_print_errors(bio_err);
1090                         ENGINE_free(ssl_client_engine);
1091                         goto end;
1092                         }
1093                 ENGINE_free(ssl_client_engine);
1094                 }
1095 #endif
1096
1097 #ifndef OPENSSL_NO_PSK
1098 #ifdef OPENSSL_NO_JPAKE
1099         if (psk_key != NULL)
1100 #else
1101         if (psk_key != NULL || jpake_secret)
1102 #endif
1103                 {
1104                 if (c_debug)
1105                         BIO_printf(bio_c_out, "PSK key given or JPAKE in use, setting client callback\n");
1106                 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1107                 }
1108 #endif
1109         /* HACK while TLS v1.2 is disabled by default */
1110         if (!(off & SSL_OP_NO_TLSv1_2))
1111                 SSL_CTX_clear_options(ctx, SSL_OP_NO_TLSv1_2);
1112         if (bugs)
1113                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
1114         else
1115                 SSL_CTX_set_options(ctx,off);
1116
1117         if (clr)
1118                 SSL_CTX_clear_options(ctx, clr);
1119         /* DTLS: partial reads end up discarding unread UDP bytes :-(
1120          * Setting read ahead solves this problem.
1121          */
1122         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1123
1124 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
1125         if (next_proto.data)
1126                 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
1127 #endif
1128
1129         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1130         if (cipher != NULL)
1131                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
1132                 BIO_printf(bio_err,"error setting cipher list\n");
1133                 ERR_print_errors(bio_err);
1134                 goto end;
1135         }
1136 #if 0
1137         else
1138                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
1139 #endif
1140
1141         SSL_CTX_set_verify(ctx,verify,verify_callback);
1142         if (!set_cert_key_stuff(ctx,cert,key))
1143                 goto end;
1144
1145         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1146                 (!SSL_CTX_set_default_verify_paths(ctx)))
1147                 {
1148                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
1149                 ERR_print_errors(bio_err);
1150                 /* goto end; */
1151                 }
1152
1153 #ifndef OPENSSL_NO_TLSEXT
1154         if (servername != NULL)
1155                 {
1156                 tlsextcbp.biodebug = bio_err;
1157                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1158                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1159                 }
1160 #ifndef OPENSSL_NO_SRP
1161         if (srp_arg.srplogin)
1162                 {
1163                 if (srp_lateuser)
1164                         SSL_CTX_set_srp_missing_srp_username_callback(ctx,missing_srp_username_callback);
1165                 else if (!SSL_CTX_set_srp_username(ctx, srp_arg.srplogin))
1166                         {
1167                         BIO_printf(bio_err,"Unable to set SRP username\n");
1168                         goto end;
1169                         }
1170                 srp_arg.msg = c_msg;
1171                 srp_arg.debug = c_debug ;
1172                 SSL_CTX_set_srp_cb_arg(ctx,&srp_arg);
1173                 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb);
1174                 SSL_CTX_set_srp_strength(ctx, srp_arg.strength);
1175                 if (c_msg || c_debug || srp_arg.amp == 0)
1176                         SSL_CTX_set_srp_verify_param_callback(ctx, ssl_srp_verify_param_cb);
1177                 }
1178
1179 #endif
1180 #endif
1181
1182         con=SSL_new(ctx);
1183         if (sess_in)
1184                 {
1185                 SSL_SESSION *sess;
1186                 BIO *stmp = BIO_new_file(sess_in, "r");
1187                 if (!stmp)
1188                         {
1189                         BIO_printf(bio_err, "Can't open session file %s\n",
1190                                                 sess_in);
1191                         ERR_print_errors(bio_err);
1192                         goto end;
1193                         }
1194                 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1195                 BIO_free(stmp);
1196                 if (!sess)
1197                         {
1198                         BIO_printf(bio_err, "Can't open session file %s\n",
1199                                                 sess_in);
1200                         ERR_print_errors(bio_err);
1201                         goto end;
1202                         }
1203                 SSL_set_session(con, sess);
1204                 SSL_SESSION_free(sess);
1205                 }
1206 #ifndef OPENSSL_NO_TLSEXT
1207         if (servername != NULL)
1208                 {
1209                 if (!SSL_set_tlsext_host_name(con,servername))
1210                         {
1211                         BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
1212                         ERR_print_errors(bio_err);
1213                         goto end;
1214                         }
1215                 }
1216 #endif
1217 #ifndef OPENSSL_NO_KRB5
1218         if (con  &&  (kctx = kssl_ctx_new()) != NULL)
1219                 {
1220                 SSL_set0_kssl_ctx(con, kctx);
1221                 kssl_ctx_setstring(kctx, KSSL_SERVER, host);
1222                 }
1223 #endif  /* OPENSSL_NO_KRB5  */
1224 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
1225 #if 0
1226 #ifdef TLSEXT_TYPE_opaque_prf_input
1227         SSL_set_tlsext_opaque_prf_input(con, "Test client", 11);
1228 #endif
1229 #endif
1230
1231 re_start:
1232
1233         if (init_client(&s,host,port,socket_type) == 0)
1234                 {
1235                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
1236                 SHUTDOWN(s);
1237                 goto end;
1238                 }
1239         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
1240
1241 #ifdef FIONBIO
1242         if (c_nbio)
1243                 {
1244                 unsigned long l=1;
1245                 BIO_printf(bio_c_out,"turning on non blocking io\n");
1246                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
1247                         {
1248                         ERR_print_errors(bio_err);
1249                         goto end;
1250                         }
1251                 }
1252 #endif
1253         if (c_Pause & 0x01) SSL_set_debug(con, 1);
1254
1255         if ( SSL_version(con) == DTLS1_VERSION)
1256                 {
1257
1258                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
1259                 if (getsockname(s, &peer, (void *)&peerlen) < 0)
1260                         {
1261                         BIO_printf(bio_err, "getsockname:errno=%d\n",
1262                                 get_last_socket_error());
1263                         SHUTDOWN(s);
1264                         goto end;
1265                         }
1266
1267                 (void)BIO_ctrl_set_connected(sbio, 1, &peer);
1268
1269                 if (enable_timeouts)
1270                         {
1271                         timeout.tv_sec = 0;
1272                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
1273                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
1274
1275                         timeout.tv_sec = 0;
1276                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
1277                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
1278                         }
1279
1280                 if (socket_mtu > 28)
1281                         {
1282                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
1283                         SSL_set_mtu(con, socket_mtu - 28);
1284                         }
1285                 else
1286                         /* want to do MTU discovery */
1287                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
1288                 }
1289         else
1290                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
1291
1292         if (nbio_test)
1293                 {
1294                 BIO *test;
1295
1296                 test=BIO_new(BIO_f_nbio_test());
1297                 sbio=BIO_push(test,sbio);
1298                 }
1299
1300         if (c_debug)
1301                 {
1302                 SSL_set_debug(con, 1);
1303                 BIO_set_callback(sbio,bio_dump_callback);
1304                 BIO_set_callback_arg(sbio,(char *)bio_c_out);
1305                 }
1306         if (c_msg)
1307                 {
1308                 SSL_set_msg_callback(con, msg_cb);
1309                 SSL_set_msg_callback_arg(con, bio_c_out);
1310                 }
1311 #ifndef OPENSSL_NO_TLSEXT
1312         if (c_tlsextdebug)
1313                 {
1314                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1315                 SSL_set_tlsext_debug_arg(con, bio_c_out);
1316                 }
1317         if (c_status_req)
1318                 {
1319                 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
1320                 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
1321                 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
1322 #if 0
1323 {
1324 STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null();
1325 OCSP_RESPID *id = OCSP_RESPID_new();
1326 id->value.byKey = ASN1_OCTET_STRING_new();
1327 id->type = V_OCSP_RESPID_KEY;
1328 ASN1_STRING_set(id->value.byKey, "Hello World", -1);
1329 sk_OCSP_RESPID_push(ids, id);
1330 SSL_set_tlsext_status_ids(con, ids);
1331 }
1332 #endif
1333                 }
1334 #endif
1335 #ifndef OPENSSL_NO_JPAKE
1336         if (jpake_secret)
1337                 jpake_client_auth(bio_c_out, sbio, jpake_secret);
1338 #endif
1339
1340         SSL_set_bio(con,sbio,sbio);
1341         SSL_set_connect_state(con);
1342
1343         /* ok, lets connect */
1344         width=SSL_get_fd(con)+1;
1345
1346         read_tty=1;
1347         write_tty=0;
1348         tty_on=0;
1349         read_ssl=1;
1350         write_ssl=1;
1351
1352         cbuf_len=0;
1353         cbuf_off=0;
1354         sbuf_len=0;
1355         sbuf_off=0;
1356
1357         /* This is an ugly hack that does a lot of assumptions */
1358         /* We do have to handle multi-line responses which may come
1359            in a single packet or not. We therefore have to use
1360            BIO_gets() which does need a buffering BIO. So during
1361            the initial chitchat we do push a buffering BIO into the
1362            chain that is removed again later on to not disturb the
1363            rest of the s_client operation. */
1364         if (starttls_proto == PROTO_SMTP)
1365                 {
1366                 int foundit=0;
1367                 BIO *fbio = BIO_new(BIO_f_buffer());
1368                 BIO_push(fbio, sbio);
1369                 /* wait for multi-line response to end from SMTP */
1370                 do
1371                         {
1372                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1373                         }
1374                 while (mbuf_len>3 && mbuf[3]=='-');
1375                 /* STARTTLS command requires EHLO... */
1376                 BIO_printf(fbio,"EHLO openssl.client.net\r\n");
1377                 (void)BIO_flush(fbio);
1378                 /* wait for multi-line response to end EHLO SMTP response */
1379                 do
1380                         {
1381                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1382                         if (strstr(mbuf,"STARTTLS"))
1383                                 foundit=1;
1384                         }
1385                 while (mbuf_len>3 && mbuf[3]=='-');
1386                 (void)BIO_flush(fbio);
1387                 BIO_pop(fbio);
1388                 BIO_free(fbio);
1389                 if (!foundit)
1390                         BIO_printf(bio_err,
1391                                    "didn't found starttls in server response,"
1392                                    " try anyway...\n");
1393                 BIO_printf(sbio,"STARTTLS\r\n");
1394                 BIO_read(sbio,sbuf,BUFSIZZ);
1395                 }
1396         else if (starttls_proto == PROTO_POP3)
1397                 {
1398                 BIO_read(sbio,mbuf,BUFSIZZ);
1399                 BIO_printf(sbio,"STLS\r\n");
1400                 BIO_read(sbio,sbuf,BUFSIZZ);
1401                 }
1402         else if (starttls_proto == PROTO_IMAP)
1403                 {
1404                 int foundit=0;
1405                 BIO *fbio = BIO_new(BIO_f_buffer());
1406                 BIO_push(fbio, sbio);
1407                 BIO_gets(fbio,mbuf,BUFSIZZ);
1408                 /* STARTTLS command requires CAPABILITY... */
1409                 BIO_printf(fbio,". CAPABILITY\r\n");
1410                 (void)BIO_flush(fbio);
1411                 /* wait for multi-line CAPABILITY response */
1412                 do
1413                         {
1414                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1415                         if (strstr(mbuf,"STARTTLS"))
1416                                 foundit=1;
1417                         }
1418                 while (mbuf_len>3 && mbuf[0]!='.');
1419                 (void)BIO_flush(fbio);
1420                 BIO_pop(fbio);
1421                 BIO_free(fbio);
1422                 if (!foundit)
1423                         BIO_printf(bio_err,
1424                                    "didn't found STARTTLS in server response,"
1425                                    " try anyway...\n");
1426                 BIO_printf(sbio,". STARTTLS\r\n");
1427                 BIO_read(sbio,sbuf,BUFSIZZ);
1428                 }
1429         else if (starttls_proto == PROTO_FTP)
1430                 {
1431                 BIO *fbio = BIO_new(BIO_f_buffer());
1432                 BIO_push(fbio, sbio);
1433                 /* wait for multi-line response to end from FTP */
1434                 do
1435                         {
1436                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1437                         }
1438                 while (mbuf_len>3 && mbuf[3]=='-');
1439                 (void)BIO_flush(fbio);
1440                 BIO_pop(fbio);
1441                 BIO_free(fbio);
1442                 BIO_printf(sbio,"AUTH TLS\r\n");
1443                 BIO_read(sbio,sbuf,BUFSIZZ);
1444                 }
1445         if (starttls_proto == PROTO_XMPP)
1446                 {
1447                 int seen = 0;
1448                 BIO_printf(sbio,"<stream:stream "
1449                     "xmlns:stream='http://etherx.jabber.org/streams' "
1450                     "xmlns='jabber:client' to='%s' version='1.0'>", host);
1451                 seen = BIO_read(sbio,mbuf,BUFSIZZ);
1452                 mbuf[seen] = 0;
1453                 while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'"))
1454                         {
1455                         if (strstr(mbuf, "/stream:features>"))
1456                                 goto shut;
1457                         seen = BIO_read(sbio,mbuf,BUFSIZZ);
1458                         mbuf[seen] = 0;
1459                         }
1460                 BIO_printf(sbio, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
1461                 seen = BIO_read(sbio,sbuf,BUFSIZZ);
1462                 sbuf[seen] = 0;
1463                 if (!strstr(sbuf, "<proceed"))
1464                         goto shut;
1465                 mbuf[0] = 0;
1466                 }
1467
1468         for (;;)
1469                 {
1470                 FD_ZERO(&readfds);
1471                 FD_ZERO(&writefds);
1472
1473                 if ((SSL_version(con) == DTLS1_VERSION) &&
1474                         DTLSv1_get_timeout(con, &timeout))
1475                         timeoutp = &timeout;
1476                 else
1477                         timeoutp = NULL;
1478
1479                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
1480                         {
1481                         in_init=1;
1482                         tty_on=0;
1483                         }
1484                 else
1485                         {
1486                         tty_on=1;
1487                         if (in_init)
1488                                 {
1489                                 in_init=0;
1490 #if 0 /* This test doesn't really work as intended (needs to be fixed) */
1491 #ifndef OPENSSL_NO_TLSEXT
1492                                 if (servername != NULL && !SSL_session_reused(con))
1493                                         {
1494                                         BIO_printf(bio_c_out,"Server did %sacknowledge servername extension.\n",tlsextcbp.ack?"":"not ");
1495                                         }
1496 #endif
1497 #endif
1498                                 if (sess_out)
1499                                         {
1500                                         BIO *stmp = BIO_new_file(sess_out, "w");
1501                                         if (stmp)
1502                                                 {
1503                                                 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
1504                                                 BIO_free(stmp);
1505                                                 }
1506                                         else
1507                                                 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
1508                                         }
1509                                 print_stuff(bio_c_out,con,full_log);
1510                                 if (full_log > 0) full_log--;
1511
1512                                 if (starttls_proto)
1513                                         {
1514                                         BIO_printf(bio_err,"%s",mbuf);
1515                                         /* We don't need to know any more */
1516                                         starttls_proto = PROTO_OFF;
1517                                         }
1518
1519                                 if (reconnect)
1520                                         {
1521                                         reconnect--;
1522                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
1523                                         SSL_shutdown(con);
1524                                         SSL_set_connect_state(con);
1525                                         SHUTDOWN(SSL_get_fd(con));
1526                                         goto re_start;
1527                                         }
1528                                 }
1529                         }
1530
1531                 ssl_pending = read_ssl && SSL_pending(con);
1532
1533                 if (!ssl_pending)
1534                         {
1535 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined (OPENSSL_SYS_BEOS_R5)
1536                         if (tty_on)
1537                                 {
1538                                 if (read_tty)  openssl_fdset(fileno(stdin),&readfds);
1539                                 if (write_tty) openssl_fdset(fileno(stdout),&writefds);
1540                                 }
1541                         if (read_ssl)
1542                                 openssl_fdset(SSL_get_fd(con),&readfds);
1543                         if (write_ssl)
1544                                 openssl_fdset(SSL_get_fd(con),&writefds);
1545 #else
1546                         if(!tty_on || !write_tty) {
1547                                 if (read_ssl)
1548                                         openssl_fdset(SSL_get_fd(con),&readfds);
1549                                 if (write_ssl)
1550                                         openssl_fdset(SSL_get_fd(con),&writefds);
1551                         }
1552 #endif
1553 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
1554                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1555
1556                         /* Note: under VMS with SOCKETSHR the second parameter
1557                          * is currently of type (int *) whereas under other
1558                          * systems it is (void *) if you don't have a cast it
1559                          * will choke the compiler: if you do have a cast then
1560                          * you can either go for (int *) or (void *).
1561                          */
1562 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1563                         /* Under Windows/DOS we make the assumption that we can
1564                          * always write to the tty: therefore if we need to
1565                          * write to the tty we just fall through. Otherwise
1566                          * we timeout the select every second and see if there
1567                          * are any keypresses. Note: this is a hack, in a proper
1568                          * Windows application we wouldn't do this.
1569                          */
1570                         i=0;
1571                         if(!write_tty) {
1572                                 if(read_tty) {
1573                                         tv.tv_sec = 1;
1574                                         tv.tv_usec = 0;
1575                                         i=select(width,(void *)&readfds,(void *)&writefds,
1576                                                  NULL,&tv);
1577 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1578                                         if(!i && (!_kbhit() || !read_tty) ) continue;
1579 #else
1580                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
1581 #endif
1582                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1583                                          NULL,timeoutp);
1584                         }
1585 #elif defined(OPENSSL_SYS_NETWARE)
1586                         if(!write_tty) {
1587                                 if(read_tty) {
1588                                         tv.tv_sec = 1;
1589                                         tv.tv_usec = 0;
1590                                         i=select(width,(void *)&readfds,(void *)&writefds,
1591                                                 NULL,&tv);
1592                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1593                                         NULL,timeoutp);
1594                         }
1595 #elif defined(OPENSSL_SYS_BEOS_R5)
1596                         /* Under BeOS-R5 the situation is similar to DOS */
1597                         i=0;
1598                         stdin_set = 0;
1599                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
1600                         if(!write_tty) {
1601                                 if(read_tty) {
1602                                         tv.tv_sec = 1;
1603                                         tv.tv_usec = 0;
1604                                         i=select(width,(void *)&readfds,(void *)&writefds,
1605                                                  NULL,&tv);
1606                                         if (read(fileno(stdin), sbuf, 0) >= 0)
1607                                                 stdin_set = 1;
1608                                         if (!i && (stdin_set != 1 || !read_tty))
1609                                                 continue;
1610                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1611                                          NULL,timeoutp);
1612                         }
1613                         (void)fcntl(fileno(stdin), F_SETFL, 0);
1614 #else
1615                         i=select(width,(void *)&readfds,(void *)&writefds,
1616                                  NULL,timeoutp);
1617 #endif
1618                         if ( i < 0)
1619                                 {
1620                                 BIO_printf(bio_err,"bad select %d\n",
1621                                 get_last_socket_error());
1622                                 goto shut;
1623                                 /* goto end; */
1624                                 }
1625                         }
1626
1627                 if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
1628                         {
1629                         BIO_printf(bio_err,"TIMEOUT occured\n");
1630                         }
1631
1632                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
1633                         {
1634                         k=SSL_write(con,&(cbuf[cbuf_off]),
1635                                 (unsigned int)cbuf_len);
1636                         switch (SSL_get_error(con,k))
1637                                 {
1638                         case SSL_ERROR_NONE:
1639                                 cbuf_off+=k;
1640                                 cbuf_len-=k;
1641                                 if (k <= 0) goto end;
1642                                 /* we have done a  write(con,NULL,0); */
1643                                 if (cbuf_len <= 0)
1644                                         {
1645                                         read_tty=1;
1646                                         write_ssl=0;
1647                                         }
1648                                 else /* if (cbuf_len > 0) */
1649                                         {
1650                                         read_tty=0;
1651                                         write_ssl=1;
1652                                         }
1653                                 break;
1654                         case SSL_ERROR_WANT_WRITE:
1655                                 BIO_printf(bio_c_out,"write W BLOCK\n");
1656                                 write_ssl=1;
1657                                 read_tty=0;
1658                                 break;
1659                         case SSL_ERROR_WANT_READ:
1660                                 BIO_printf(bio_c_out,"write R BLOCK\n");
1661                                 write_tty=0;
1662                                 read_ssl=1;
1663                                 write_ssl=0;
1664                                 break;
1665                         case SSL_ERROR_WANT_X509_LOOKUP:
1666                                 BIO_printf(bio_c_out,"write X BLOCK\n");
1667                                 break;
1668                         case SSL_ERROR_ZERO_RETURN:
1669                                 if (cbuf_len != 0)
1670                                         {
1671                                         BIO_printf(bio_c_out,"shutdown\n");
1672                                         ret = 0;
1673                                         goto shut;
1674                                         }
1675                                 else
1676                                         {
1677                                         read_tty=1;
1678                                         write_ssl=0;
1679                                         break;
1680                                         }
1681
1682                         case SSL_ERROR_SYSCALL:
1683                                 if ((k != 0) || (cbuf_len != 0))
1684                                         {
1685                                         BIO_printf(bio_err,"write:errno=%d\n",
1686                                                 get_last_socket_error());
1687                                         goto shut;
1688                                         }
1689                                 else
1690                                         {
1691                                         read_tty=1;
1692                                         write_ssl=0;
1693                                         }
1694                                 break;
1695                         case SSL_ERROR_SSL:
1696                                 ERR_print_errors(bio_err);
1697                                 goto shut;
1698                                 }
1699                         }
1700 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
1701                 /* Assume Windows/DOS/BeOS can always write */
1702                 else if (!ssl_pending && write_tty)
1703 #else
1704                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
1705 #endif
1706                         {
1707 #ifdef CHARSET_EBCDIC
1708                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
1709 #endif
1710                         i=raw_write_stdout(&(sbuf[sbuf_off]),sbuf_len);
1711
1712                         if (i <= 0)
1713                                 {
1714                                 BIO_printf(bio_c_out,"DONE\n");
1715                                 ret = 0;
1716                                 goto shut;
1717                                 /* goto end; */
1718                                 }
1719
1720                         sbuf_len-=i;;
1721                         sbuf_off+=i;
1722                         if (sbuf_len <= 0)
1723                                 {
1724                                 read_ssl=1;
1725                                 write_tty=0;
1726                                 }
1727                         }
1728                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
1729                         {
1730 #ifdef RENEG
1731 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
1732 #endif
1733 #if 1
1734                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
1735 #else
1736 /* Demo for pending and peek :-) */
1737                         k=SSL_read(con,sbuf,16);
1738 { char zbuf[10240];
1739 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
1740 }
1741 #endif
1742
1743                         switch (SSL_get_error(con,k))
1744                                 {
1745                         case SSL_ERROR_NONE:
1746                                 if (k <= 0)
1747                                         goto end;
1748                                 sbuf_off=0;
1749                                 sbuf_len=k;
1750
1751                                 read_ssl=0;
1752                                 write_tty=1;
1753                                 break;
1754                         case SSL_ERROR_WANT_WRITE:
1755                                 BIO_printf(bio_c_out,"read W BLOCK\n");
1756                                 write_ssl=1;
1757                                 read_tty=0;
1758                                 break;
1759                         case SSL_ERROR_WANT_READ:
1760                                 BIO_printf(bio_c_out,"read R BLOCK\n");
1761                                 write_tty=0;
1762                                 read_ssl=1;
1763                                 if ((read_tty == 0) && (write_ssl == 0))
1764                                         write_ssl=1;
1765                                 break;
1766                         case SSL_ERROR_WANT_X509_LOOKUP:
1767                                 BIO_printf(bio_c_out,"read X BLOCK\n");
1768                                 break;
1769                         case SSL_ERROR_SYSCALL:
1770                                 ret=get_last_socket_error();
1771                                 BIO_printf(bio_err,"read:errno=%d\n",ret);
1772                                 goto shut;
1773                         case SSL_ERROR_ZERO_RETURN:
1774                                 BIO_printf(bio_c_out,"closed\n");
1775                                 ret=0;
1776                                 goto shut;
1777                         case SSL_ERROR_SSL:
1778                                 ERR_print_errors(bio_err);
1779                                 goto shut;
1780                                 /* break; */
1781                                 }
1782                         }
1783
1784 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1785 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1786                 else if (_kbhit())
1787 #else
1788                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
1789 #endif
1790 #elif defined (OPENSSL_SYS_NETWARE)
1791                 else if (_kbhit())
1792 #elif defined(OPENSSL_SYS_BEOS_R5)
1793                 else if (stdin_set)
1794 #else
1795                 else if (FD_ISSET(fileno(stdin),&readfds))
1796 #endif
1797                         {
1798                         if (crlf)
1799                                 {
1800                                 int j, lf_num;
1801
1802                                 i=raw_read_stdin(cbuf,BUFSIZZ/2);
1803                                 lf_num = 0;
1804                                 /* both loops are skipped when i <= 0 */
1805                                 for (j = 0; j < i; j++)
1806                                         if (cbuf[j] == '\n')
1807                                                 lf_num++;
1808                                 for (j = i-1; j >= 0; j--)
1809                                         {
1810                                         cbuf[j+lf_num] = cbuf[j];
1811                                         if (cbuf[j] == '\n')
1812                                                 {
1813                                                 lf_num--;
1814                                                 i++;
1815                                                 cbuf[j+lf_num] = '\r';
1816                                                 }
1817                                         }
1818                                 assert(lf_num == 0);
1819                                 }
1820                         else
1821                                 i=raw_read_stdin(cbuf,BUFSIZZ);
1822
1823                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
1824                                 {
1825                                 BIO_printf(bio_err,"DONE\n");
1826                                 ret=0;
1827                                 goto shut;
1828                                 }
1829
1830                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
1831                                 {
1832                                 BIO_printf(bio_err,"RENEGOTIATING\n");
1833                                 SSL_renegotiate(con);
1834                                 cbuf_len=0;
1835                                 }
1836                         else
1837                                 {
1838                                 cbuf_len=i;
1839                                 cbuf_off=0;
1840 #ifdef CHARSET_EBCDIC
1841                                 ebcdic2ascii(cbuf, cbuf, i);
1842 #endif
1843                                 }
1844
1845                         write_ssl=1;
1846                         read_tty=0;
1847                         }
1848                 }
1849
1850         ret=0;
1851 shut:
1852         if (in_init)
1853                 print_stuff(bio_c_out,con,full_log);
1854         SSL_shutdown(con);
1855         SHUTDOWN(SSL_get_fd(con));
1856 end:
1857         if (con != NULL)
1858                 {
1859                 if (prexit != 0)
1860                         print_stuff(bio_c_out,con,1);
1861                 SSL_free(con);
1862                 }
1863         if (ctx != NULL) SSL_CTX_free(ctx);
1864         if (cert)
1865                 X509_free(cert);
1866         if (key)
1867                 EVP_PKEY_free(key);
1868         if (pass)
1869                 OPENSSL_free(pass);
1870         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
1871         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
1872         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
1873         if (bio_c_out != NULL)
1874                 {
1875                 BIO_free(bio_c_out);
1876                 bio_c_out=NULL;
1877                 }
1878         apps_shutdown();
1879         OPENSSL_EXIT(ret);
1880         }
1881
1882
1883 static void print_stuff(BIO *bio, SSL *s, int full)
1884         {
1885         X509 *peer=NULL;
1886         char *p;
1887         static const char *space="                ";
1888         char buf[BUFSIZ];
1889         STACK_OF(X509) *sk;
1890         STACK_OF(X509_NAME) *sk2;
1891         const SSL_CIPHER *c;
1892         X509_NAME *xn;
1893         int j,i;
1894 #ifndef OPENSSL_NO_COMP
1895         const COMP_METHOD *comp, *expansion;
1896 #endif
1897
1898         if (full)
1899                 {
1900                 int got_a_chain = 0;
1901
1902                 sk=SSL_get_peer_cert_chain(s);
1903                 if (sk != NULL)
1904                         {
1905                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
1906
1907                         BIO_printf(bio,"---\nCertificate chain\n");
1908                         for (i=0; i<sk_X509_num(sk); i++)
1909                                 {
1910                                 X509_NAME_oneline(X509_get_subject_name(
1911                                         sk_X509_value(sk,i)),buf,sizeof buf);
1912                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
1913                                 X509_NAME_oneline(X509_get_issuer_name(
1914                                         sk_X509_value(sk,i)),buf,sizeof buf);
1915                                 BIO_printf(bio,"   i:%s\n",buf);
1916                                 if (c_showcerts)
1917                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
1918                                 }
1919                         }
1920
1921                 BIO_printf(bio,"---\n");
1922                 peer=SSL_get_peer_certificate(s);
1923                 if (peer != NULL)
1924                         {
1925                         BIO_printf(bio,"Server certificate\n");
1926                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
1927                                 PEM_write_bio_X509(bio,peer);
1928                         X509_NAME_oneline(X509_get_subject_name(peer),
1929                                 buf,sizeof buf);
1930                         BIO_printf(bio,"subject=%s\n",buf);
1931                         X509_NAME_oneline(X509_get_issuer_name(peer),
1932                                 buf,sizeof buf);
1933                         BIO_printf(bio,"issuer=%s\n",buf);
1934                         }
1935                 else
1936                         BIO_printf(bio,"no peer certificate available\n");
1937
1938                 sk2=SSL_get_client_CA_list(s);
1939                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
1940                         {
1941                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
1942                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
1943                                 {
1944                                 xn=sk_X509_NAME_value(sk2,i);
1945                                 X509_NAME_oneline(xn,buf,sizeof(buf));
1946                                 BIO_write(bio,buf,strlen(buf));
1947                                 BIO_write(bio,"\n",1);
1948                                 }
1949                         }
1950                 else
1951                         {
1952                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
1953                         }
1954                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
1955                 if (p != NULL)
1956                         {
1957                         /* This works only for SSL 2.  In later protocol
1958                          * versions, the client does not know what other
1959                          * ciphers (in addition to the one to be used
1960                          * in the current connection) the server supports. */
1961
1962                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
1963                         j=i=0;
1964                         while (*p)
1965                                 {
1966                                 if (*p == ':')
1967                                         {
1968                                         BIO_write(bio,space,15-j%25);
1969                                         i++;
1970                                         j=0;
1971                                         BIO_write(bio,((i%3)?" ":"\n"),1);
1972                                         }
1973                                 else
1974                                         {
1975                                         BIO_write(bio,p,1);
1976                                         j++;
1977                                         }
1978                                 p++;
1979                                 }
1980                         BIO_write(bio,"\n",1);
1981                         }
1982
1983                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
1984                         BIO_number_read(SSL_get_rbio(s)),
1985                         BIO_number_written(SSL_get_wbio(s)));
1986                 }
1987         BIO_printf(bio,(SSL_cache_hit(s)?"---\nReused, ":"---\nNew, "));
1988         c=SSL_get_current_cipher(s);
1989         BIO_printf(bio,"%s, Cipher is %s\n",
1990                 SSL_CIPHER_get_version(c),
1991                 SSL_CIPHER_get_name(c));
1992         if (peer != NULL) {
1993                 EVP_PKEY *pktmp;
1994                 pktmp = X509_get_pubkey(peer);
1995                 BIO_printf(bio,"Server public key is %d bit\n",
1996                                                          EVP_PKEY_bits(pktmp));
1997                 EVP_PKEY_free(pktmp);
1998         }
1999         BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
2000                         SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
2001 #ifndef OPENSSL_NO_COMP
2002         comp=SSL_get_current_compression(s);
2003         expansion=SSL_get_current_expansion(s);
2004         BIO_printf(bio,"Compression: %s\n",
2005                 comp ? SSL_COMP_get_name(comp) : "NONE");
2006         BIO_printf(bio,"Expansion: %s\n",
2007                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
2008 #endif
2009
2010 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2011         if (next_proto.status != -1) {
2012                 const unsigned char *proto;
2013                 unsigned int proto_len;
2014                 SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
2015                 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
2016                 BIO_write(bio, proto, proto_len);
2017                 BIO_write(bio, "\n", 1);
2018         }
2019 #endif
2020
2021 #ifdef SSL_DEBUG
2022         {
2023         /* Print out local port of connection: useful for debugging */
2024         int sock;
2025         struct sockaddr_in ladd;
2026         socklen_t ladd_size = sizeof(ladd);
2027         sock = SSL_get_fd(s);
2028         getsockname(sock, (struct sockaddr *)&ladd, &ladd_size);
2029         BIO_printf(bio_c_out, "LOCAL PORT is %u\n", ntohs(ladd.sin_port));
2030         }
2031 #endif
2032
2033         SSL_SESSION_print(bio,SSL_get_session(s));
2034         BIO_printf(bio,"---\n");
2035         if (peer != NULL)
2036                 X509_free(peer);
2037         /* flush, or debugging output gets mixed with http response */
2038         (void)BIO_flush(bio);
2039         }
2040
2041 #ifndef OPENSSL_NO_TLSEXT
2042
2043 static int ocsp_resp_cb(SSL *s, void *arg)
2044         {
2045         const unsigned char *p;
2046         int len;
2047         OCSP_RESPONSE *rsp;
2048         len = SSL_get_tlsext_status_ocsp_resp(s, &p);
2049         BIO_puts(arg, "OCSP response: ");
2050         if (!p)
2051                 {
2052                 BIO_puts(arg, "no response sent\n");
2053                 return 1;
2054                 }
2055         rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
2056         if (!rsp)
2057                 {
2058                 BIO_puts(arg, "response parse error\n");
2059                 BIO_dump_indent(arg, (char *)p, len, 4);
2060                 return 0;
2061                 }
2062         BIO_puts(arg, "\n======================================\n");
2063         OCSP_RESPONSE_print(arg, rsp, 0);
2064         BIO_puts(arg, "======================================\n");
2065         OCSP_RESPONSE_free(rsp);
2066         return 1;
2067         }
2068
2069 #endif