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