apps/s_client.c

   1 /* apps/s_client.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58 /* ====================================================================
  59  * Copyright (c) 1998-2006 The OpenSSL Project.  All rights reserved.
  60  *
  61  * Redistribution and use in source and binary forms, with or without
  62  * modification, are permitted provided that the following conditions
  63  * are met:
  64  *
  65  * 1. Redistributions of source code must retain the above copyright
  66  *    notice, this list of conditions and the following disclaimer.
  67  *
  68  * 2. Redistributions in binary form must reproduce the above copyright
  69  *    notice, this list of conditions and the following disclaimer in
  70  *    the documentation and/or other materials provided with the
  71  *    distribution.
  72  *
  73  * 3. All advertising materials mentioning features or use of this
  74  *    software must display the following acknowledgment:
  75  *    "This product includes software developed by the OpenSSL Project
  76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  77  *
  78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  79  *    endorse or promote products derived from this software without
  80  *    prior written permission. For written permission, please contact
  81  *    openssl-core@openssl.org.
  82  *
  83  * 5. Products derived from this software may not be called "OpenSSL"
  84  *    nor may "OpenSSL" appear in their names without prior written
  85  *    permission of the OpenSSL Project.
  86  *
  87  * 6. Redistributions of any form whatsoever must retain the following
  88  *    acknowledgment:
  89  *    "This product includes software developed by the OpenSSL Project
  90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  91  *
  92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 103  * OF THE POSSIBILITY OF SUCH DAMAGE.
 104  * ====================================================================
 105  *
 106  * This product includes cryptographic software written by Eric Young
 107  * (eay@cryptsoft.com).  This product includes software written by Tim
 108  * Hudson (tjh@cryptsoft.com).
 109  *
 110  */
 111 /* ====================================================================
 112  * Copyright 2005 Nokia. All rights reserved.
 113  *
 114  * The portions of the attached software ("Contribution") is developed by
 115  * Nokia Corporation and is licensed pursuant to the OpenSSL open source
 116  * license.
 117  *
 118  * The Contribution, originally written by Mika Kousa and Pasi Eronen of
 119  * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
 120  * support (see RFC 4279) to OpenSSL.
 121  *
 122  * No patent licenses or other rights except those expressly stated in
 123  * the OpenSSL open source license shall be deemed granted or received
 124  * expressly, by implication, estoppel, or otherwise.
 125  *
 126  * No assurances are provided by Nokia that the Contribution does not
 127  * infringe the patent or other intellectual property rights of any third
 128  * party or that the license provides you with all the necessary rights
 129  * to make use of the Contribution.
 130  *
 131  * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
 132  * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
 133  * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
 134  * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
 135  * OTHERWISE.
 136  */
 137
 138 #include <assert.h>
 139 #include <ctype.h>
 140 #include <stdio.h>
 141 #include <stdlib.h>
 142 #include <string.h>
 143 #include <openssl/e_os2.h>
 144 #ifdef OPENSSL_NO_STDIO
 145 #define APPS_WIN16
 146 #endif
 147
 148 /* With IPv6, it looks like Digital has mixed up the proper order of
 149    recursive header file inclusion, resulting in the compiler complaining
 150    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
 151    is needed to have fileno() declared correctly...  So let's define u_int */
 152 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
 153 #define __U_INT
 154 typedef unsigned int u_int;
 155 #endif
 156
 157 #define USE_SOCKETS
 158 #include "apps.h"
 159 #include <openssl/x509.h>
 160 #include <openssl/ssl.h>
 161 #include <openssl/err.h>
 162 #include <openssl/pem.h>
 163 #include <openssl/rand.h>
 164 #include <openssl/ocsp.h>
 165 #include <openssl/bn.h>
 166 #ifndef OPENSSL_NO_SRP
 167 #include <openssl/srp.h>
 168 #endif
 169 #include "s_apps.h"
 170 #include "timeouts.h"
 171
 172 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 173 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 174 #undef FIONBIO
 175 #endif
 176
 177 #if defined(OPENSSL_SYS_BEOS_R5)
 178 #include <fcntl.h>
 179 #endif
 180
 181 #undef PROG
 182 #define PROG    s_client_main
 183
 184 /*#define SSL_HOST_NAME "www.netscape.com" */
 185 /*#define SSL_HOST_NAME "193.118.187.102" */
 186 #define SSL_HOST_NAME   "localhost"
 187
 188 /*#define TEST_CERT "client.pem" */ /* no default cert. */
 189
 190 #undef BUFSIZZ
 191 #define BUFSIZZ 1024*8
 192
 193 extern int verify_depth;
 194 extern int verify_error;
 195 extern int verify_return_error;
 196
 197 #ifdef FIONBIO
 198 static int c_nbio=0;
 199 #endif
 200 static int c_Pause=0;
 201 static int c_debug=0;
 202 #ifndef OPENSSL_NO_TLSEXT
 203 static int c_tlsextdebug=0;
 204 static int c_status_req=0;
 205 #endif
 206 static int c_msg=0;
 207 static int c_showcerts=0;
 208
 209 static void sc_usage(void);
 210 static void print_stuff(BIO *berr,SSL *con,int full);
 211 #ifndef OPENSSL_NO_TLSEXT
 212 static int ocsp_resp_cb(SSL *s, void *arg);
 213 #endif
 214 static BIO *bio_c_out=NULL;
 215 static int c_quiet=0;
 216 static int c_ign_eof=0;
 217
 218 #ifndef OPENSSL_NO_PSK
 219 /* Default PSK identity and key */
 220 static char *psk_identity="Client_identity";
 221 /*char *psk_key=NULL;  by default PSK is not used */
 222
 223 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
 224         unsigned int max_identity_len, unsigned char *psk,
 225         unsigned int max_psk_len)
 226         {
 227         unsigned int psk_len = 0;
 228         int ret;
 229         BIGNUM *bn=NULL;
 230
 231         if (c_debug)
 232                 BIO_printf(bio_c_out, "psk_client_cb\n");
 233         if (!hint)
 234                 {
 235                 /* no ServerKeyExchange message*/
 236                 if (c_debug)
 237                         BIO_printf(bio_c_out,"NULL received PSK identity hint, continuing anyway\n");
 238                 }
 239         else if (c_debug)
 240                 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
 241
 242         /* lookup PSK identity and PSK key based on the given identity hint here */
 243         ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity);
 244         if (ret < 0 || (unsigned int)ret > max_identity_len)
 245                 goto out_err;
 246         if (c_debug)
 247                 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity, ret);
 248         ret=BN_hex2bn(&bn, psk_key);
 249         if (!ret)
 250                 {
 251                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
 252                 if (bn)
 253                         BN_free(bn);
 254                 return 0;
 255                 }
 256
 257         if ((unsigned int)BN_num_bytes(bn) > max_psk_len)
 258                 {
 259                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
 260                         max_psk_len, BN_num_bytes(bn));
 261                 BN_free(bn);
 262                 return 0;
 263                 }
 264
 265         psk_len=BN_bn2bin(bn, psk);
 266         BN_free(bn);
 267         if (psk_len == 0)
 268                 goto out_err;
 269
 270         if (c_debug)
 271                 BIO_printf(bio_c_out, "created PSK len=%d\n", psk_len);
 272
 273         return psk_len;
 274  out_err:
 275         if (c_debug)
 276                 BIO_printf(bio_err, "Error in PSK client callback\n");
 277         return 0;
 278         }
 279 #endif
 280
 281 static void sc_usage(void)
 282         {
 283         BIO_printf(bio_err,"usage: s_client args\n");
 284         BIO_printf(bio_err,"\n");
 285         BIO_printf(bio_err," -host host     - use -connect instead\n");
 286         BIO_printf(bio_err," -port port     - use -connect instead\n");
 287         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
 288
 289         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 290         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 291         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 292         BIO_printf(bio_err," -key arg      - Private key file to use, in cert file if\n");
 293         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 294         BIO_printf(bio_err," -keyform arg  - key format (PEM or DER) PEM default\n");
 295         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 296         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 297         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 298         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 299         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 300         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
 301         BIO_printf(bio_err," -debug        - extra output\n");
 302 #ifdef WATT32
 303         BIO_printf(bio_err," -wdebug       - WATT-32 tcp debugging\n");
 304 #endif
 305         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 306         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
 307         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
 308 #ifdef FIONBIO
 309         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 310 #endif
 311         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 312         BIO_printf(bio_err," -quiet        - no s_client output\n");
 313         BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
 314         BIO_printf(bio_err," -no_ign_eof   - don't ignore input eof\n");
 315 #ifndef OPENSSL_NO_PSK
 316         BIO_printf(bio_err," -psk_identity arg - PSK identity\n");
 317         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
 318 # ifndef OPENSSL_NO_JPAKE
 319         BIO_printf(bio_err," -jpake arg    - JPAKE secret to use\n");
 320 # endif
 321 #endif
 322 #ifndef OPENSSL_NO_SRP
 323         BIO_printf(bio_err," -srpuser user     - SRP authentification for 'user'\n");
 324         BIO_printf(bio_err," -srppass arg      - password for 'user'\n");
 325         BIO_printf(bio_err," -srp_lateuser     - SRP username into second ClientHello message\n");
 326         BIO_printf(bio_err," -srp_moregroups   - Tolerate other than the known g N values.\n");
 327         BIO_printf(bio_err," -srp_strength int - minimal mength in bits for N (default %d).\n",SRP_MINIMAL_N);
 328 #endif
 329         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 330         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 331         BIO_printf(bio_err," -tls1_2       - just use TLSv1.2\n");
 332         BIO_printf(bio_err," -tls1_1       - just use TLSv1.1\n");
 333         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 334         BIO_printf(bio_err," -dtls1        - just use DTLSv1\n");
 335         BIO_printf(bio_err," -mtu          - set the link layer MTU\n");
 336         BIO_printf(bio_err," -no_tls1_2/-no_tls1_1/-no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 337         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 338         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
 339         BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
 340         BIO_printf(bio_err,"                 command to see what is available\n");
 341         BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
 342         BIO_printf(bio_err,"                 for those protocols that support it, where\n");
 343         BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
 344         BIO_printf(bio_err,"                 only \"smtp\", \"pop3\", \"imap\", \"ftp\" and \"xmpp\"\n");
 345         BIO_printf(bio_err,"                 are supported.\n");
 346 #ifndef OPENSSL_NO_ENGINE
 347         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 348 #endif
 349         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 350         BIO_printf(bio_err," -sess_out arg - file to write SSL session to\n");
 351         BIO_printf(bio_err," -sess_in arg  - file to read SSL session from\n");
 352 #ifndef OPENSSL_NO_TLSEXT
 353         BIO_printf(bio_err," -servername host  - Set TLS extension servername in ClientHello\n");
 354         BIO_printf(bio_err," -tlsextdebug      - hex dump of all TLS extensions received\n");
 355         BIO_printf(bio_err," -status           - request certificate status from server\n");
 356         BIO_printf(bio_err," -no_ticket        - disable use of RFC4507bis session tickets\n");
 357 #endif
 358         BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
 359         }
 360
 361 #ifndef OPENSSL_NO_TLSEXT
 362
 363 /* This is a context that we pass to callbacks */
 364 typedef struct tlsextctx_st {
 365    BIO * biodebug;
 366    int ack;
 367 } tlsextctx;
 368
 369
 370 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 371         {
 372         tlsextctx * p = (tlsextctx *) arg;
 373         const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 374         if (SSL_get_servername_type(s) != -1)
 375                 p->ack = !SSL_session_reused(s) && hn != NULL;
 376         else
 377                 BIO_printf(bio_err,"Can't use SSL_get_servername\n");
 378
 379         return SSL_TLSEXT_ERR_OK;
 380         }
 381
 382 #ifndef OPENSSL_NO_SRP
 383
 384 /* This is a context that we pass to all callbacks */
 385 typedef struct srp_arg_st
 386         {
 387         char *srppassin;
 388         char *srplogin;
 389         int msg;   /* copy from c_msg */
 390         int debug; /* copy from c_debug */
 391         int amp;   /* allow more groups */
 392         int strength /* minimal size for N */ ;
 393         } SRP_ARG;
 394
 395 #define SRP_NUMBER_ITERATIONS_FOR_PRIME 64
 396
 397 static int SRP_Verify_N_and_g(BIGNUM *N, BIGNUM *g)
 398         {
 399         BN_CTX *bn_ctx = BN_CTX_new();
 400         BIGNUM *p = BN_new();
 401         BIGNUM *r = BN_new();
 402         int ret =
 403                 g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) &&
 404                 BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) &&
 405                 p != NULL && BN_rshift1(p, N) &&
 406
 407                 /* p = (N-1)/2 */
 408                 BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) &&
 409                 r != NULL &&
 410
 411                 /* verify g^((N-1)/2) == -1 (mod N) */
 412                 BN_mod_exp(r, g, p, N, bn_ctx) &&
 413                 BN_add_word(r, 1) &&
 414                 BN_cmp(r, N) == 0;
 415
 416         if(r)
 417                 BN_free(r);
 418         if(p)
 419                 BN_free(p);
 420         if(bn_ctx)
 421                 BN_CTX_free(bn_ctx);
 422         return ret;
 423         }
 424
 425 static int MS_CALLBACK ssl_srp_verify_param_cb(SSL *s, void *arg)
 426         {
 427         SRP_ARG *srp_arg = (SRP_ARG *)arg;
 428         BIGNUM *N = NULL, *g = NULL;
 429         if (!(N = SSL_get_srp_N(s)) || !(g = SSL_get_srp_g(s)))
 430                 return 0;
 431         if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1)
 432                 {
 433                 BIO_printf(bio_err, "SRP parameters:\n");
 434                 BIO_printf(bio_err,"\tN="); BN_print(bio_err,N);
 435                 BIO_printf(bio_err,"\n\tg="); BN_print(bio_err,g);
 436                 BIO_printf(bio_err,"\n");
 437                 }
 438
 439         if (SRP_check_known_gN_param(g,N))
 440                 return 1;
 441
 442         if (srp_arg->amp == 1)
 443                 {
 444                 if (srp_arg->debug)
 445                         BIO_printf(bio_err, "SRP param N and g are not known params, going to check deeper.\n");
 446
 447 /* The srp_moregroups must be used with caution, testing primes costs time.
 448    Implementors should rather add the value to the known ones.
 449    The minimal size has already been tested.
 450 */
 451                 if (BN_num_bits(g) <= BN_BITS && SRP_Verify_N_and_g(N,g))
 452                         return 1;
 453                 }
 454         BIO_printf(bio_err, "SRP param N and g rejected.\n");
 455         return 0;
 456         }
 457
 458 #define PWD_STRLEN 1024
 459
 460 static char * MS_CALLBACK ssl_give_srp_client_pwd_cb(SSL *s, void *arg)
 461         {
 462         SRP_ARG *srp_arg = (SRP_ARG *)arg;
 463         char *pass = (char *)OPENSSL_malloc(PWD_STRLEN+1);
 464         PW_CB_DATA cb_tmp;
 465         int l;
 466
 467         cb_tmp.password = (char *)srp_arg->srppassin;
 468         cb_tmp.prompt_info = "SRP user";
 469         if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp))<0)
 470                 {
 471                 BIO_printf (bio_err, "Can't read Password\n");
 472                 OPENSSL_free(pass);
 473                 return NULL;
 474                 }
 475         *(pass+l)= '\0';
 476
 477         return pass;
 478         }
 479
 480 static char * MS_CALLBACK missing_srp_username_callback(SSL *s, void *arg)
 481         {
 482         SRP_ARG *srp_arg = (SRP_ARG *)arg;
 483         return BUF_strdup(srp_arg->srplogin);
 484         }
 485
 486 #endif
 487 #endif
 488
 489 enum
 490 {
 491         PROTO_OFF       = 0,
 492         PROTO_SMTP,
 493         PROTO_POP3,
 494         PROTO_IMAP,
 495         PROTO_FTP,
 496         PROTO_XMPP
 497 };
 498
 499 int MAIN(int, char **);
 500
 501 int MAIN(int argc, char **argv)
 502         {
 503         unsigned int off=0, clr=0;
 504         SSL *con=NULL;
 505 #ifndef OPENSSL_NO_KRB5
 506         KSSL_CTX *kctx;
 507 #endif
 508         int s,k,width,state=0;
 509         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
 510         int cbuf_len,cbuf_off;
 511         int sbuf_len,sbuf_off;
 512         fd_set readfds,writefds;
 513         short port=PORT;
 514         int full_log=1;
 515         char *host=SSL_HOST_NAME;
 516         char *cert_file=NULL,*key_file=NULL;
 517         int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
 518         char *passarg = NULL, *pass = NULL;
 519         X509 *cert = NULL;
 520         EVP_PKEY *key = NULL;
 521         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 522         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 523         int crlf=0;
 524         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 525         SSL_CTX *ctx=NULL;
 526         int ret=1,in_init=1,i,nbio_test=0;
 527         int starttls_proto = PROTO_OFF;
 528         int prexit = 0;
 529         X509_VERIFY_PARAM *vpm = NULL;
 530         int badarg = 0;
 531         const SSL_METHOD *meth=NULL;
 532         int socket_type=SOCK_STREAM;
 533         BIO *sbio;
 534         char *inrand=NULL;
 535         int mbuf_len=0;
 536         struct timeval timeout, *timeoutp;
 537 #ifndef OPENSSL_NO_ENGINE
 538         char *engine_id=NULL;
 539         char *ssl_client_engine_id=NULL;
 540         ENGINE *ssl_client_engine=NULL;
 541 #endif
 542         ENGINE *e=NULL;
 543 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
 544         struct timeval tv;
 545 #if defined(OPENSSL_SYS_BEOS_R5)
 546         int stdin_set = 0;
 547 #endif
 548 #endif
 549 #ifndef OPENSSL_NO_TLSEXT
 550         char *servername = NULL;
 551         tlsextctx tlsextcbp =
 552         {NULL,0};
 553 #endif
 554         char *sess_in = NULL;
 555         char *sess_out = NULL;
 556         struct sockaddr peer;
 557         int peerlen = sizeof(peer);
 558         int enable_timeouts = 0 ;
 559         long socket_mtu = 0;
 560 #ifndef OPENSSL_NO_JPAKE
 561         char *jpake_secret = NULL;
 562 #endif
 563 #ifndef OPENSSL_NO_SRP
 564         char * srppass = NULL;
 565         int srp_lateuser = 0;
 566         SRP_ARG srp_arg = {NULL,NULL,0,0,0,1024};
 567 #endif
 568
 569 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 570         meth=SSLv23_client_method();
 571 #elif !defined(OPENSSL_NO_SSL3)
 572         meth=SSLv3_client_method();
 573 #elif !defined(OPENSSL_NO_SSL2)
 574         meth=SSLv2_client_method();
 575 #endif
 576
 577         apps_startup();
 578         c_Pause=0;
 579         c_quiet=0;
 580         c_ign_eof=0;
 581         c_debug=0;
 582         c_msg=0;
 583         c_showcerts=0;
 584
 585         if (bio_err == NULL)
 586                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 587
 588         if (!load_config(bio_err, NULL))
 589                 goto end;
 590
 591         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 592                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 593                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
 594                 {
 595                 BIO_printf(bio_err,"out of memory\n");
 596                 goto end;
 597                 }
 598
 599         verify_depth=0;
 600         verify_error=X509_V_OK;
 601 #ifdef FIONBIO
 602         c_nbio=0;
 603 #endif
 604
 605         argc--;
 606         argv++;
 607         while (argc >= 1)
 608                 {
 609                 if      (strcmp(*argv,"-host") == 0)
 610                         {
 611                         if (--argc < 1) goto bad;
 612                         host= *(++argv);
 613                         }
 614                 else if (strcmp(*argv,"-port") == 0)
 615                         {
 616                         if (--argc < 1) goto bad;
 617                         port=atoi(*(++argv));
 618                         if (port == 0) goto bad;
 619                         }
 620                 else if (strcmp(*argv,"-connect") == 0)
 621                         {
 622                         if (--argc < 1) goto bad;
 623                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 624                                 goto bad;
 625                         }
 626                 else if (strcmp(*argv,"-verify") == 0)
 627                         {
 628                         verify=SSL_VERIFY_PEER;
 629                         if (--argc < 1) goto bad;
 630                         verify_depth=atoi(*(++argv));
 631                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 632                         }
 633                 else if (strcmp(*argv,"-cert") == 0)
 634                         {
 635                         if (--argc < 1) goto bad;
 636                         cert_file= *(++argv);
 637                         }
 638                 else if (strcmp(*argv,"-sess_out") == 0)
 639                         {
 640                         if (--argc < 1) goto bad;
 641                         sess_out = *(++argv);
 642                         }
 643                 else if (strcmp(*argv,"-sess_in") == 0)
 644                         {
 645                         if (--argc < 1) goto bad;
 646                         sess_in = *(++argv);
 647                         }
 648                 else if (strcmp(*argv,"-certform") == 0)
 649                         {
 650                         if (--argc < 1) goto bad;
 651                         cert_format = str2fmt(*(++argv));
 652                         }
 653                 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm))
 654                         {
 655                         if (badarg)
 656                                 goto bad;
 657                         continue;
 658                         }
 659                 else if (strcmp(*argv,"-verify_return_error") == 0)
 660                         verify_return_error = 1;
 661                 else if (strcmp(*argv,"-prexit") == 0)
 662                         prexit=1;
 663                 else if (strcmp(*argv,"-crlf") == 0)
 664                         crlf=1;
 665                 else if (strcmp(*argv,"-quiet") == 0)
 666                         {
 667                         c_quiet=1;
 668                         c_ign_eof=1;
 669                         }
 670                 else if (strcmp(*argv,"-ign_eof") == 0)
 671                         c_ign_eof=1;
 672                 else if (strcmp(*argv,"-no_ign_eof") == 0)
 673                         c_ign_eof=0;
 674                 else if (strcmp(*argv,"-pause") == 0)
 675                         c_Pause=1;
 676                 else if (strcmp(*argv,"-debug") == 0)
 677                         c_debug=1;
 678 #ifndef OPENSSL_NO_TLSEXT
 679                 else if (strcmp(*argv,"-tlsextdebug") == 0)
 680                         c_tlsextdebug=1;
 681                 else if (strcmp(*argv,"-status") == 0)
 682                         c_status_req=1;
 683 #endif
 684 #ifdef WATT32
 685                 else if (strcmp(*argv,"-wdebug") == 0)
 686                         dbug_init();
 687 #endif
 688                 else if (strcmp(*argv,"-msg") == 0)
 689                         c_msg=1;
 690                 else if (strcmp(*argv,"-showcerts") == 0)
 691                         c_showcerts=1;
 692                 else if (strcmp(*argv,"-nbio_test") == 0)
 693                         nbio_test=1;
 694                 else if (strcmp(*argv,"-state") == 0)
 695                         state=1;
 696 #ifndef OPENSSL_NO_PSK
 697                 else if (strcmp(*argv,"-psk_identity") == 0)
 698                         {
 699                         if (--argc < 1) goto bad;
 700                         psk_identity=*(++argv);
 701                         }
 702                 else if (strcmp(*argv,"-psk") == 0)
 703                         {
 704                         size_t j;
 705
 706                         if (--argc < 1) goto bad;
 707                         psk_key=*(++argv);
 708                         for (j = 0; j < strlen(psk_key); j++)
 709                                 {
 710                                 if (isxdigit((int)psk_key[j]))
 711                                         continue;
 712                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
 713                                 goto bad;
 714                                 }
 715                         }
 716 #endif
 717 #ifndef OPENSSL_NO_SRP
 718                 else if (strcmp(*argv,"-srpuser") == 0)
 719                         {
 720                         if (--argc < 1) goto bad;
 721                         srp_arg.srplogin= *(++argv);
 722                         meth=TLSv1_client_method();
 723                         }
 724                 else if (strcmp(*argv,"-srppass") == 0)
 725                         {
 726                         if (--argc < 1) goto bad;
 727                         srppass= *(++argv);
 728                         meth=TLSv1_client_method();
 729                         }
 730                 else if (strcmp(*argv,"-srp_strength") == 0)
 731                         {
 732                         if (--argc < 1) goto bad;
 733                         srp_arg.strength=atoi(*(++argv));
 734                         BIO_printf(bio_err,"SRP minimal length for N is %d\n",srp_arg.strength);
 735                         meth=TLSv1_client_method();
 736                         }
 737                 else if (strcmp(*argv,"-srp_lateuser") == 0)
 738                         {
 739                         srp_lateuser= 1;
 740                         meth=TLSv1_client_method();
 741                         }
 742                 else if (strcmp(*argv,"-srp_moregroups") == 0)
 743                         {
 744                         srp_arg.amp=1;
 745                         meth=TLSv1_client_method();
 746                         }
 747 #endif
 748 #ifndef OPENSSL_NO_SSL2
 749                 else if (strcmp(*argv,"-ssl2") == 0)
 750                         meth=SSLv2_client_method();
 751 #endif
 752 #ifndef OPENSSL_NO_SSL3
 753                 else if (strcmp(*argv,"-ssl3") == 0)
 754                         meth=SSLv3_client_method();
 755 #endif
 756 #ifndef OPENSSL_NO_TLS1
 757                 else if (strcmp(*argv,"-tls1_2") == 0)
 758                         meth=TLSv1_2_client_method();
 759                 else if (strcmp(*argv,"-tls1_1") == 0)
 760                         meth=TLSv1_1_client_method();
 761                 else if (strcmp(*argv,"-tls1") == 0)
 762                         meth=TLSv1_client_method();
 763 #endif
 764 #ifndef OPENSSL_NO_DTLS1
 765                 else if (strcmp(*argv,"-dtls1") == 0)
 766                         {
 767                         meth=DTLSv1_client_method();
 768                         socket_type=SOCK_DGRAM;
 769                         }
 770                 else if (strcmp(*argv,"-timeout") == 0)
 771                         enable_timeouts=1;
 772                 else if (strcmp(*argv,"-mtu") == 0)
 773                         {
 774                         if (--argc < 1) goto bad;
 775                         socket_mtu = atol(*(++argv));
 776                         }
 777 #endif
 778                 else if (strcmp(*argv,"-bugs") == 0)
 779                         bugs=1;
 780                 else if (strcmp(*argv,"-keyform") == 0)
 781                         {
 782                         if (--argc < 1) goto bad;
 783                         key_format = str2fmt(*(++argv));
 784                         }
 785                 else if (strcmp(*argv,"-pass") == 0)
 786                         {
 787                         if (--argc < 1) goto bad;
 788                         passarg = *(++argv);
 789                         }
 790                 else if (strcmp(*argv,"-key") == 0)
 791                         {
 792                         if (--argc < 1) goto bad;
 793                         key_file= *(++argv);
 794                         }
 795                 else if (strcmp(*argv,"-reconnect") == 0)
 796                         {
 797                         reconnect=5;
 798                         }
 799                 else if (strcmp(*argv,"-CApath") == 0)
 800                         {
 801                         if (--argc < 1) goto bad;
 802                         CApath= *(++argv);
 803                         }
 804                 else if (strcmp(*argv,"-CAfile") == 0)
 805                         {
 806                         if (--argc < 1) goto bad;
 807                         CAfile= *(++argv);
 808                         }
 809                 else if (strcmp(*argv,"-no_tls1_2") == 0)
 810                         off|=SSL_OP_NO_TLSv1_2;
 811                 else if (strcmp(*argv,"-no_tls1_1") == 0)
 812                         off|=SSL_OP_NO_TLSv1_1;
 813                 else if (strcmp(*argv,"-no_tls1") == 0)
 814                         off|=SSL_OP_NO_TLSv1;
 815                 else if (strcmp(*argv,"-no_ssl3") == 0)
 816                         off|=SSL_OP_NO_SSLv3;
 817                 else if (strcmp(*argv,"-no_ssl2") == 0)
 818                         off|=SSL_OP_NO_SSLv2;
 819                 else if (strcmp(*argv,"-no_comp") == 0)
 820                         { off|=SSL_OP_NO_COMPRESSION; }
 821 #ifndef OPENSSL_NO_TLSEXT
 822                 else if (strcmp(*argv,"-no_ticket") == 0)
 823                         { off|=SSL_OP_NO_TICKET; }
 824 #endif
 825                 else if (strcmp(*argv,"-serverpref") == 0)
 826                         off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
 827                 else if (strcmp(*argv,"-legacy_renegotiation") == 0)
 828                         off|=SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION;
 829                 else if (strcmp(*argv,"-legacy_server_connect") == 0)
 830                         { off|=SSL_OP_LEGACY_SERVER_CONNECT; }
 831                 else if (strcmp(*argv,"-no_legacy_server_connect") == 0)
 832                         { clr|=SSL_OP_LEGACY_SERVER_CONNECT; }
 833                 else if (strcmp(*argv,"-cipher") == 0)
 834                         {
 835                         if (--argc < 1) goto bad;
 836                         cipher= *(++argv);
 837                         }
 838 #ifdef FIONBIO
 839                 else if (strcmp(*argv,"-nbio") == 0)
 840                         { c_nbio=1; }
 841 #endif
 842                 else if (strcmp(*argv,"-starttls") == 0)
 843                         {
 844                         if (--argc < 1) goto bad;
 845                         ++argv;
 846                         if (strcmp(*argv,"smtp") == 0)
 847                                 starttls_proto = PROTO_SMTP;
 848                         else if (strcmp(*argv,"pop3") == 0)
 849                                 starttls_proto = PROTO_POP3;
 850                         else if (strcmp(*argv,"imap") == 0)
 851                                 starttls_proto = PROTO_IMAP;
 852                         else if (strcmp(*argv,"ftp") == 0)
 853                                 starttls_proto = PROTO_FTP;
 854                         else if (strcmp(*argv, "xmpp") == 0)
 855                                 starttls_proto = PROTO_XMPP;
 856                         else
 857                                 goto bad;
 858                         }
 859 #ifndef OPENSSL_NO_ENGINE
 860                 else if (strcmp(*argv,"-engine") == 0)
 861                         {
 862                         if (--argc < 1) goto bad;
 863                         engine_id = *(++argv);
 864                         }
 865                 else if (strcmp(*argv,"-ssl_client_engine") == 0)
 866                         {
 867                         if (--argc < 1) goto bad;
 868                         ssl_client_engine_id = *(++argv);
 869                         }
 870 #endif
 871                 else if (strcmp(*argv,"-rand") == 0)
 872                         {
 873                         if (--argc < 1) goto bad;
 874                         inrand= *(++argv);
 875                         }
 876 #ifndef OPENSSL_NO_TLSEXT
 877                 else if (strcmp(*argv,"-servername") == 0)
 878                         {
 879                         if (--argc < 1) goto bad;
 880                         servername= *(++argv);
 881                         /* meth=TLSv1_client_method(); */
 882                         }
 883 #endif
 884 #ifndef OPENSSL_NO_JPAKE
 885                 else if (strcmp(*argv,"-jpake") == 0)
 886                         {
 887                         if (--argc < 1) goto bad;
 888                         jpake_secret = *++argv;
 889                         }
 890 #endif
 891                 else
 892                         {
 893                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 894                         badop=1;
 895                         break;
 896                         }
 897                 argc--;
 898                 argv++;
 899                 }
 900         if (badop)
 901                 {
 902 bad:
 903                 sc_usage();
 904                 goto end;
 905                 }
 906
 907 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
 908         if (jpake_secret)
 909                 {
 910                 if (psk_key)
 911                         {
 912                         BIO_printf(bio_err,
 913                                    "Can't use JPAKE and PSK together\n");
 914                         goto end;
 915                         }
 916                 psk_identity = "JPAKE";
 917                 }
 918
 919         if (cipher)
 920                 {
 921                 BIO_printf(bio_err, "JPAKE sets cipher to PSK\n");
 922                 goto end;
 923                 }
 924         cipher = "PSK";
 925 #endif
 926
 927         OpenSSL_add_ssl_algorithms();
 928         SSL_load_error_strings();
 929
 930 #ifndef OPENSSL_NO_ENGINE
 931         e = setup_engine(bio_err, engine_id, 1);
 932         if (ssl_client_engine_id)
 933                 {
 934                 ssl_client_engine = ENGINE_by_id(ssl_client_engine_id);
 935                 if (!ssl_client_engine)
 936                         {
 937                         BIO_printf(bio_err,
 938                                         "Error getting client auth engine\n");
 939                         goto end;
 940                         }
 941                 }
 942
 943 #endif
 944         if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
 945                 {
 946                 BIO_printf(bio_err, "Error getting password\n");
 947                 goto end;
 948                 }
 949
 950         if (key_file == NULL)
 951                 key_file = cert_file;
 952
 953
 954         if (key_file)
 955
 956                 {
 957
 958                 key = load_key(bio_err, key_file, key_format, 0, pass, e,
 959                                "client certificate private key file");
 960                 if (!key)
 961                         {
 962                         ERR_print_errors(bio_err);
 963                         goto end;
 964                         }
 965
 966                 }
 967
 968         if (cert_file)
 969
 970                 {
 971                 cert = load_cert(bio_err,cert_file,cert_format,
 972                                 NULL, e, "client certificate file");
 973
 974                 if (!cert)
 975                         {
 976                         ERR_print_errors(bio_err);
 977                         goto end;
 978                         }
 979                 }
 980
 981         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 982                 && !RAND_status())
 983                 {
 984                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 985                 }
 986         if (inrand != NULL)
 987                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 988                         app_RAND_load_files(inrand));
 989
 990         if (bio_c_out == NULL)
 991                 {
 992                 if (c_quiet && !c_debug && !c_msg)
 993                         {
 994                         bio_c_out=BIO_new(BIO_s_null());
 995                         }
 996                 else
 997                         {
 998                         if (bio_c_out == NULL)
 999                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
1000                         }
1001                 }
1002
1003 #ifndef OPENSSL_NO_SRP
1004         if(!app_passwd(bio_err, srppass, NULL, &srp_arg.srppassin, NULL))
1005                 {
1006                 BIO_printf(bio_err, "Error getting password\n");
1007                 goto end;
1008                 }
1009 #endif
1010
1011         ctx=SSL_CTX_new(meth);
1012         if (ctx == NULL)
1013                 {
1014                 ERR_print_errors(bio_err);
1015                 goto end;
1016                 }
1017
1018         if (vpm)
1019                 SSL_CTX_set1_param(ctx, vpm);
1020
1021 #ifndef OPENSSL_NO_ENGINE
1022         if (ssl_client_engine)
1023                 {
1024                 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine))
1025                         {
1026                         BIO_puts(bio_err, "Error setting client auth engine\n");
1027                         ERR_print_errors(bio_err);
1028                         ENGINE_free(ssl_client_engine);
1029                         goto end;
1030                         }
1031                 ENGINE_free(ssl_client_engine);
1032                 }
1033 #endif
1034
1035 #ifndef OPENSSL_NO_PSK
1036 #ifdef OPENSSL_NO_JPAKE
1037         if (psk_key != NULL)
1038 #else
1039         if (psk_key != NULL || jpake_secret)
1040 #endif
1041                 {
1042                 if (c_debug)
1043                         BIO_printf(bio_c_out, "PSK key given or JPAKE in use, setting client callback\n");
1044                 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1045                 }
1046 #endif
1047         /* HACK while TLS v1.2 is disabled by default */
1048         if (!(off & SSL_OP_NO_TLSv1_2))
1049                 SSL_CTX_clear_options(ctx, SSL_OP_NO_TLSv1_2);
1050         if (bugs)
1051                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
1052         else
1053                 SSL_CTX_set_options(ctx,off);
1054
1055         if (clr)
1056                 SSL_CTX_clear_options(ctx, clr);
1057         /* DTLS: partial reads end up discarding unread UDP bytes :-(
1058          * Setting read ahead solves this problem.
1059          */
1060         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1061
1062         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1063         if (cipher != NULL)
1064                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
1065                 BIO_printf(bio_err,"error setting cipher list\n");
1066                 ERR_print_errors(bio_err);
1067                 goto end;
1068         }
1069 #if 0
1070         else
1071                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
1072 #endif
1073
1074         SSL_CTX_set_verify(ctx,verify,verify_callback);
1075         if (!set_cert_key_stuff(ctx,cert,key))
1076                 goto end;
1077
1078         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1079                 (!SSL_CTX_set_default_verify_paths(ctx)))
1080                 {
1081                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
1082                 ERR_print_errors(bio_err);
1083                 /* goto end; */
1084                 }
1085
1086 #ifndef OPENSSL_NO_TLSEXT
1087         if (servername != NULL)
1088                 {
1089                 tlsextcbp.biodebug = bio_err;
1090                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1091                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1092                 }
1093 #ifndef OPENSSL_NO_SRP
1094         if (srp_arg.srplogin)
1095                 {
1096                 if (srp_lateuser)
1097                         SSL_CTX_set_srp_missing_srp_username_callback(ctx,missing_srp_username_callback);
1098                 else if (!SSL_CTX_set_srp_username(ctx, srp_arg.srplogin))
1099                         {
1100                         BIO_printf(bio_err,"Unable to set SRP username\n");
1101                         goto end;
1102                         }
1103                 srp_arg.msg = c_msg;
1104                 srp_arg.debug = c_debug ;
1105                 SSL_CTX_set_srp_cb_arg(ctx,&srp_arg);
1106                 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb);
1107                 SSL_CTX_set_srp_strength(ctx, srp_arg.strength);
1108                 if (c_msg || c_debug || srp_arg.amp == 0)
1109                         SSL_CTX_set_srp_verify_param_callback(ctx, ssl_srp_verify_param_cb);
1110                 }
1111
1112 #endif
1113 #endif
1114
1115         con=SSL_new(ctx);
1116         if (sess_in)
1117                 {
1118                 SSL_SESSION *sess;
1119                 BIO *stmp = BIO_new_file(sess_in, "r");
1120                 if (!stmp)
1121                         {
1122                         BIO_printf(bio_err, "Can't open session file %s\n",
1123                                                 sess_in);
1124                         ERR_print_errors(bio_err);
1125                         goto end;
1126                         }
1127                 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1128                 BIO_free(stmp);
1129                 if (!sess)
1130                         {
1131                         BIO_printf(bio_err, "Can't open session file %s\n",
1132                                                 sess_in);
1133                         ERR_print_errors(bio_err);
1134                         goto end;
1135                         }
1136                 SSL_set_session(con, sess);
1137                 SSL_SESSION_free(sess);
1138                 }
1139 #ifndef OPENSSL_NO_TLSEXT
1140         if (servername != NULL)
1141                 {
1142                 if (!SSL_set_tlsext_host_name(con,servername))
1143                         {
1144                         BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
1145                         ERR_print_errors(bio_err);
1146                         goto end;
1147                         }
1148                 }
1149 #endif
1150 #ifndef OPENSSL_NO_KRB5
1151         if (con  &&  (kctx = kssl_ctx_new()) != NULL)
1152                 {
1153                 SSL_set0_kssl_ctx(con, kctx);
1154                 kssl_ctx_setstring(kctx, KSSL_SERVER, host);
1155                 }
1156 #endif  /* OPENSSL_NO_KRB5  */
1157 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
1158 #if 0
1159 #ifdef TLSEXT_TYPE_opaque_prf_input
1160         SSL_set_tlsext_opaque_prf_input(con, "Test client", 11);
1161 #endif
1162 #endif
1163
1164 re_start:
1165
1166         if (init_client(&s,host,port,socket_type) == 0)
1167                 {
1168                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
1169                 SHUTDOWN(s);
1170                 goto end;
1171                 }
1172         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
1173
1174 #ifdef FIONBIO
1175         if (c_nbio)
1176                 {
1177                 unsigned long l=1;
1178                 BIO_printf(bio_c_out,"turning on non blocking io\n");
1179                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
1180                         {
1181                         ERR_print_errors(bio_err);
1182                         goto end;
1183                         }
1184                 }
1185 #endif
1186         if (c_Pause & 0x01) SSL_set_debug(con, 1);
1187
1188         if ( SSL_version(con) == DTLS1_VERSION)
1189                 {
1190
1191                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
1192                 if (getsockname(s, &peer, (void *)&peerlen) < 0)
1193                         {
1194                         BIO_printf(bio_err, "getsockname:errno=%d\n",
1195                                 get_last_socket_error());
1196                         SHUTDOWN(s);
1197                         goto end;
1198                         }
1199
1200                 (void)BIO_ctrl_set_connected(sbio, 1, &peer);
1201
1202                 if (enable_timeouts)
1203                         {
1204                         timeout.tv_sec = 0;
1205                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
1206                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
1207
1208                         timeout.tv_sec = 0;
1209                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
1210                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
1211                         }
1212
1213                 if (socket_mtu > 28)
1214                         {
1215                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
1216                         SSL_set_mtu(con, socket_mtu - 28);
1217                         }
1218                 else
1219                         /* want to do MTU discovery */
1220                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
1221                 }
1222         else
1223                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
1224
1225         if (nbio_test)
1226                 {
1227                 BIO *test;
1228
1229                 test=BIO_new(BIO_f_nbio_test());
1230                 sbio=BIO_push(test,sbio);
1231                 }
1232
1233         if (c_debug)
1234                 {
1235                 SSL_set_debug(con, 1);
1236                 BIO_set_callback(sbio,bio_dump_callback);
1237                 BIO_set_callback_arg(sbio,(char *)bio_c_out);
1238                 }
1239         if (c_msg)
1240                 {
1241                 SSL_set_msg_callback(con, msg_cb);
1242                 SSL_set_msg_callback_arg(con, bio_c_out);
1243                 }
1244 #ifndef OPENSSL_NO_TLSEXT
1245         if (c_tlsextdebug)
1246                 {
1247                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1248                 SSL_set_tlsext_debug_arg(con, bio_c_out);
1249                 }
1250         if (c_status_req)
1251                 {
1252                 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
1253                 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
1254                 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
1255 #if 0
1256 {
1257 STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null();
1258 OCSP_RESPID *id = OCSP_RESPID_new();
1259 id->value.byKey = ASN1_OCTET_STRING_new();
1260 id->type = V_OCSP_RESPID_KEY;
1261 ASN1_STRING_set(id->value.byKey, "Hello World", -1);
1262 sk_OCSP_RESPID_push(ids, id);
1263 SSL_set_tlsext_status_ids(con, ids);
1264 }
1265 #endif
1266                 }
1267 #endif
1268 #ifndef OPENSSL_NO_JPAKE
1269         if (jpake_secret)
1270                 jpake_client_auth(bio_c_out, sbio, jpake_secret);
1271 #endif
1272
1273         SSL_set_bio(con,sbio,sbio);
1274         SSL_set_connect_state(con);
1275
1276         /* ok, lets connect */
1277         width=SSL_get_fd(con)+1;
1278
1279         read_tty=1;
1280         write_tty=0;
1281         tty_on=0;
1282         read_ssl=1;
1283         write_ssl=1;
1284
1285         cbuf_len=0;
1286         cbuf_off=0;
1287         sbuf_len=0;
1288         sbuf_off=0;
1289
1290         /* This is an ugly hack that does a lot of assumptions */
1291         /* We do have to handle multi-line responses which may come
1292            in a single packet or not. We therefore have to use
1293            BIO_gets() which does need a buffering BIO. So during
1294            the initial chitchat we do push a buffering BIO into the
1295            chain that is removed again later on to not disturb the
1296            rest of the s_client operation. */
1297         if (starttls_proto == PROTO_SMTP)
1298                 {
1299                 int foundit=0;
1300                 BIO *fbio = BIO_new(BIO_f_buffer());
1301                 BIO_push(fbio, sbio);
1302                 /* wait for multi-line response to end from SMTP */
1303                 do
1304                         {
1305                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1306                         }
1307                 while (mbuf_len>3 && mbuf[3]=='-');
1308                 /* STARTTLS command requires EHLO... */
1309                 BIO_printf(fbio,"EHLO openssl.client.net\r\n");
1310                 (void)BIO_flush(fbio);
1311                 /* wait for multi-line response to end EHLO SMTP response */
1312                 do
1313                         {
1314                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1315                         if (strstr(mbuf,"STARTTLS"))
1316                                 foundit=1;
1317                         }
1318                 while (mbuf_len>3 && mbuf[3]=='-');
1319                 (void)BIO_flush(fbio);
1320                 BIO_pop(fbio);
1321                 BIO_free(fbio);
1322                 if (!foundit)
1323                         BIO_printf(bio_err,
1324                                    "didn't found starttls in server response,"
1325                                    " try anyway...\n");
1326                 BIO_printf(sbio,"STARTTLS\r\n");
1327                 BIO_read(sbio,sbuf,BUFSIZZ);
1328                 }
1329         else if (starttls_proto == PROTO_POP3)
1330                 {
1331                 BIO_read(sbio,mbuf,BUFSIZZ);
1332                 BIO_printf(sbio,"STLS\r\n");
1333                 BIO_read(sbio,sbuf,BUFSIZZ);
1334                 }
1335         else if (starttls_proto == PROTO_IMAP)
1336                 {
1337                 int foundit=0;
1338                 BIO *fbio = BIO_new(BIO_f_buffer());
1339                 BIO_push(fbio, sbio);
1340                 BIO_gets(fbio,mbuf,BUFSIZZ);
1341                 /* STARTTLS command requires CAPABILITY... */
1342                 BIO_printf(fbio,". CAPABILITY\r\n");
1343                 (void)BIO_flush(fbio);
1344                 /* wait for multi-line CAPABILITY response */
1345                 do
1346                         {
1347                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1348                         if (strstr(mbuf,"STARTTLS"))
1349                                 foundit=1;
1350                         }
1351                 while (mbuf_len>3 && mbuf[0]!='.');
1352                 (void)BIO_flush(fbio);
1353                 BIO_pop(fbio);
1354                 BIO_free(fbio);
1355                 if (!foundit)
1356                         BIO_printf(bio_err,
1357                                    "didn't found STARTTLS in server response,"
1358                                    " try anyway...\n");
1359                 BIO_printf(sbio,". STARTTLS\r\n");
1360                 BIO_read(sbio,sbuf,BUFSIZZ);
1361                 }
1362         else if (starttls_proto == PROTO_FTP)
1363                 {
1364                 BIO *fbio = BIO_new(BIO_f_buffer());
1365                 BIO_push(fbio, sbio);
1366                 /* wait for multi-line response to end from FTP */
1367                 do
1368                         {
1369                         mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
1370                         }
1371                 while (mbuf_len>3 && mbuf[3]=='-');
1372                 (void)BIO_flush(fbio);
1373                 BIO_pop(fbio);
1374                 BIO_free(fbio);
1375                 BIO_printf(sbio,"AUTH TLS\r\n");
1376                 BIO_read(sbio,sbuf,BUFSIZZ);
1377                 }
1378         if (starttls_proto == PROTO_XMPP)
1379                 {
1380                 int seen = 0;
1381                 BIO_printf(sbio,"<stream:stream "
1382                     "xmlns:stream='http://etherx.jabber.org/streams' "
1383                     "xmlns='jabber:client' to='%s' version='1.0'>", host);
1384                 seen = BIO_read(sbio,mbuf,BUFSIZZ);
1385                 mbuf[seen] = 0;
1386                 while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'"))
1387                         {
1388                         if (strstr(mbuf, "/stream:features>"))
1389                                 goto shut;
1390                         seen = BIO_read(sbio,mbuf,BUFSIZZ);
1391                         mbuf[seen] = 0;
1392                         }
1393                 BIO_printf(sbio, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
1394                 seen = BIO_read(sbio,sbuf,BUFSIZZ);
1395                 sbuf[seen] = 0;
1396                 if (!strstr(sbuf, "<proceed"))
1397                         goto shut;
1398                 mbuf[0] = 0;
1399                 }
1400
1401         for (;;)
1402                 {
1403                 FD_ZERO(&readfds);
1404                 FD_ZERO(&writefds);
1405
1406                 if ((SSL_version(con) == DTLS1_VERSION) &&
1407                         DTLSv1_get_timeout(con, &timeout))
1408                         timeoutp = &timeout;
1409                 else
1410                         timeoutp = NULL;
1411
1412                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
1413                         {
1414                         in_init=1;
1415                         tty_on=0;
1416                         }
1417                 else
1418                         {
1419                         tty_on=1;
1420                         if (in_init)
1421                                 {
1422                                 in_init=0;
1423 #if 0 /* This test doesn't really work as intended (needs to be fixed) */
1424 #ifndef OPENSSL_NO_TLSEXT
1425                                 if (servername != NULL && !SSL_session_reused(con))
1426                                         {
1427                                         BIO_printf(bio_c_out,"Server did %sacknowledge servername extension.\n",tlsextcbp.ack?"":"not ");
1428                                         }
1429 #endif
1430 #endif
1431                                 if (sess_out)
1432                                         {
1433                                         BIO *stmp = BIO_new_file(sess_out, "w");
1434                                         if (stmp)
1435                                                 {
1436                                                 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
1437                                                 BIO_free(stmp);
1438                                                 }
1439                                         else
1440                                                 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
1441                                         }
1442                                 print_stuff(bio_c_out,con,full_log);
1443                                 if (full_log > 0) full_log--;
1444
1445                                 if (starttls_proto)
1446                                         {
1447                                         BIO_printf(bio_err,"%s",mbuf);
1448                                         /* We don't need to know any more */
1449                                         starttls_proto = PROTO_OFF;
1450                                         }
1451
1452                                 if (reconnect)
1453                                         {
1454                                         reconnect--;
1455                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
1456                                         SSL_shutdown(con);
1457                                         SSL_set_connect_state(con);
1458                                         SHUTDOWN(SSL_get_fd(con));
1459                                         goto re_start;
1460                                         }
1461                                 }
1462                         }
1463
1464                 ssl_pending = read_ssl && SSL_pending(con);
1465
1466                 if (!ssl_pending)
1467                         {
1468 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined (OPENSSL_SYS_BEOS_R5)
1469                         if (tty_on)
1470                                 {
1471                                 if (read_tty)  openssl_fdset(fileno(stdin),&readfds);
1472                                 if (write_tty) openssl_fdset(fileno(stdout),&writefds);
1473                                 }
1474                         if (read_ssl)
1475                                 openssl_fdset(SSL_get_fd(con),&readfds);
1476                         if (write_ssl)
1477                                 openssl_fdset(SSL_get_fd(con),&writefds);
1478 #else
1479                         if(!tty_on || !write_tty) {
1480                                 if (read_ssl)
1481                                         openssl_fdset(SSL_get_fd(con),&readfds);
1482                                 if (write_ssl)
1483                                         openssl_fdset(SSL_get_fd(con),&writefds);
1484                         }
1485 #endif
1486 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
1487                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1488
1489                         /* Note: under VMS with SOCKETSHR the second parameter
1490                          * is currently of type (int *) whereas under other
1491                          * systems it is (void *) if you don't have a cast it
1492                          * will choke the compiler: if you do have a cast then
1493                          * you can either go for (int *) or (void *).
1494                          */
1495 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1496                         /* Under Windows/DOS we make the assumption that we can
1497                          * always write to the tty: therefore if we need to
1498                          * write to the tty we just fall through. Otherwise
1499                          * we timeout the select every second and see if there
1500                          * are any keypresses. Note: this is a hack, in a proper
1501                          * Windows application we wouldn't do this.
1502                          */
1503                         i=0;
1504                         if(!write_tty) {
1505                                 if(read_tty) {
1506                                         tv.tv_sec = 1;
1507                                         tv.tv_usec = 0;
1508                                         i=select(width,(void *)&readfds,(void *)&writefds,
1509                                                  NULL,&tv);
1510 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1511                                         if(!i && (!_kbhit() || !read_tty) ) continue;
1512 #else
1513                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
1514 #endif
1515                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1516                                          NULL,timeoutp);
1517                         }
1518 #elif defined(OPENSSL_SYS_NETWARE)
1519                         if(!write_tty) {
1520                                 if(read_tty) {
1521                                         tv.tv_sec = 1;
1522                                         tv.tv_usec = 0;
1523                                         i=select(width,(void *)&readfds,(void *)&writefds,
1524                                                 NULL,&tv);
1525                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1526                                         NULL,timeoutp);
1527                         }
1528 #elif defined(OPENSSL_SYS_BEOS_R5)
1529                         /* Under BeOS-R5 the situation is similar to DOS */
1530                         i=0;
1531                         stdin_set = 0;
1532                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
1533                         if(!write_tty) {
1534                                 if(read_tty) {
1535                                         tv.tv_sec = 1;
1536                                         tv.tv_usec = 0;
1537                                         i=select(width,(void *)&readfds,(void *)&writefds,
1538                                                  NULL,&tv);
1539                                         if (read(fileno(stdin), sbuf, 0) >= 0)
1540                                                 stdin_set = 1;
1541                                         if (!i && (stdin_set != 1 || !read_tty))
1542                                                 continue;
1543                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1544                                          NULL,timeoutp);
1545                         }
1546                         (void)fcntl(fileno(stdin), F_SETFL, 0);
1547 #else
1548                         i=select(width,(void *)&readfds,(void *)&writefds,
1549                                  NULL,timeoutp);
1550 #endif
1551                         if ( i < 0)
1552                                 {
1553                                 BIO_printf(bio_err,"bad select %d\n",
1554                                 get_last_socket_error());
1555                                 goto shut;
1556                                 /* goto end; */
1557                                 }
1558                         }
1559
1560                 if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
1561                         {
1562                         BIO_printf(bio_err,"TIMEOUT occured\n");
1563                         }
1564
1565                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
1566                         {
1567                         k=SSL_write(con,&(cbuf[cbuf_off]),
1568                                 (unsigned int)cbuf_len);
1569                         switch (SSL_get_error(con,k))
1570                                 {
1571                         case SSL_ERROR_NONE:
1572                                 cbuf_off+=k;
1573                                 cbuf_len-=k;
1574                                 if (k <= 0) goto end;
1575                                 /* we have done a  write(con,NULL,0); */
1576                                 if (cbuf_len <= 0)
1577                                         {
1578                                         read_tty=1;
1579                                         write_ssl=0;
1580                                         }
1581                                 else /* if (cbuf_len > 0) */
1582                                         {
1583                                         read_tty=0;
1584                                         write_ssl=1;
1585                                         }
1586                                 break;
1587                         case SSL_ERROR_WANT_WRITE:
1588                                 BIO_printf(bio_c_out,"write W BLOCK\n");
1589                                 write_ssl=1;
1590                                 read_tty=0;
1591                                 break;
1592                         case SSL_ERROR_WANT_READ:
1593                                 BIO_printf(bio_c_out,"write R BLOCK\n");
1594                                 write_tty=0;
1595                                 read_ssl=1;
1596                                 write_ssl=0;
1597                                 break;
1598                         case SSL_ERROR_WANT_X509_LOOKUP:
1599                                 BIO_printf(bio_c_out,"write X BLOCK\n");
1600                                 break;
1601                         case SSL_ERROR_ZERO_RETURN:
1602                                 if (cbuf_len != 0)
1603                                         {
1604                                         BIO_printf(bio_c_out,"shutdown\n");
1605                                         ret = 0;
1606                                         goto shut;
1607                                         }
1608                                 else
1609                                         {
1610                                         read_tty=1;
1611                                         write_ssl=0;
1612                                         break;
1613                                         }
1614
1615                         case SSL_ERROR_SYSCALL:
1616                                 if ((k != 0) || (cbuf_len != 0))
1617                                         {
1618                                         BIO_printf(bio_err,"write:errno=%d\n",
1619                                                 get_last_socket_error());
1620                                         goto shut;
1621                                         }
1622                                 else
1623                                         {
1624                                         read_tty=1;
1625                                         write_ssl=0;
1626                                         }
1627                                 break;
1628                         case SSL_ERROR_SSL:
1629                                 ERR_print_errors(bio_err);
1630                                 goto shut;
1631                                 }
1632                         }
1633 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
1634                 /* Assume Windows/DOS/BeOS can always write */
1635                 else if (!ssl_pending && write_tty)
1636 #else
1637                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
1638 #endif
1639                         {
1640 #ifdef CHARSET_EBCDIC
1641                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
1642 #endif
1643                         i=raw_write_stdout(&(sbuf[sbuf_off]),sbuf_len);
1644
1645                         if (i <= 0)
1646                                 {
1647                                 BIO_printf(bio_c_out,"DONE\n");
1648                                 ret = 0;
1649                                 goto shut;
1650                                 /* goto end; */
1651                                 }
1652
1653                         sbuf_len-=i;;
1654                         sbuf_off+=i;
1655                         if (sbuf_len <= 0)
1656                                 {
1657                                 read_ssl=1;
1658                                 write_tty=0;
1659                                 }
1660                         }
1661                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
1662                         {
1663 #ifdef RENEG
1664 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
1665 #endif
1666 #if 1
1667                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
1668 #else
1669 /* Demo for pending and peek :-) */
1670                         k=SSL_read(con,sbuf,16);
1671 { char zbuf[10240];
1672 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
1673 }
1674 #endif
1675
1676                         switch (SSL_get_error(con,k))
1677                                 {
1678                         case SSL_ERROR_NONE:
1679                                 if (k <= 0)
1680                                         goto end;
1681                                 sbuf_off=0;
1682                                 sbuf_len=k;
1683
1684                                 read_ssl=0;
1685                                 write_tty=1;
1686                                 break;
1687                         case SSL_ERROR_WANT_WRITE:
1688                                 BIO_printf(bio_c_out,"read W BLOCK\n");
1689                                 write_ssl=1;
1690                                 read_tty=0;
1691                                 break;
1692                         case SSL_ERROR_WANT_READ:
1693                                 BIO_printf(bio_c_out,"read R BLOCK\n");
1694                                 write_tty=0;
1695                                 read_ssl=1;
1696                                 if ((read_tty == 0) && (write_ssl == 0))
1697                                         write_ssl=1;
1698                                 break;
1699                         case SSL_ERROR_WANT_X509_LOOKUP:
1700                                 BIO_printf(bio_c_out,"read X BLOCK\n");
1701                                 break;
1702                         case SSL_ERROR_SYSCALL:
1703                                 ret=get_last_socket_error();
1704                                 BIO_printf(bio_err,"read:errno=%d\n",ret);
1705                                 goto shut;
1706                         case SSL_ERROR_ZERO_RETURN:
1707                                 BIO_printf(bio_c_out,"closed\n");
1708                                 ret=0;
1709                                 goto shut;
1710                         case SSL_ERROR_SSL:
1711                                 ERR_print_errors(bio_err);
1712                                 goto shut;
1713                                 /* break; */
1714                                 }
1715                         }
1716
1717 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1718 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1719                 else if (_kbhit())
1720 #else
1721                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
1722 #endif
1723 #elif defined (OPENSSL_SYS_NETWARE)
1724                 else if (_kbhit())
1725 #elif defined(OPENSSL_SYS_BEOS_R5)
1726                 else if (stdin_set)
1727 #else
1728                 else if (FD_ISSET(fileno(stdin),&readfds))
1729 #endif
1730                         {
1731                         if (crlf)
1732                                 {
1733                                 int j, lf_num;
1734
1735                                 i=raw_read_stdin(cbuf,BUFSIZZ/2);
1736                                 lf_num = 0;
1737                                 /* both loops are skipped when i <= 0 */
1738                                 for (j = 0; j < i; j++)
1739                                         if (cbuf[j] == '\n')
1740                                                 lf_num++;
1741                                 for (j = i-1; j >= 0; j--)
1742                                         {
1743                                         cbuf[j+lf_num] = cbuf[j];
1744                                         if (cbuf[j] == '\n')
1745                                                 {
1746                                                 lf_num--;
1747                                                 i++;
1748                                                 cbuf[j+lf_num] = '\r';
1749                                                 }
1750                                         }
1751                                 assert(lf_num == 0);
1752                                 }
1753                         else
1754                                 i=raw_read_stdin(cbuf,BUFSIZZ);
1755
1756                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
1757                                 {
1758                                 BIO_printf(bio_err,"DONE\n");
1759                                 ret=0;
1760                                 goto shut;
1761                                 }
1762
1763                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
1764                                 {
1765                                 BIO_printf(bio_err,"RENEGOTIATING\n");
1766                                 SSL_renegotiate(con);
1767                                 cbuf_len=0;
1768                                 }
1769                         else
1770                                 {
1771                                 cbuf_len=i;
1772                                 cbuf_off=0;
1773 #ifdef CHARSET_EBCDIC
1774                                 ebcdic2ascii(cbuf, cbuf, i);
1775 #endif
1776                                 }
1777
1778                         write_ssl=1;
1779                         read_tty=0;
1780                         }
1781                 }
1782
1783         ret=0;
1784 shut:
1785         if (in_init)
1786                 print_stuff(bio_c_out,con,full_log);
1787         SSL_shutdown(con);
1788         SHUTDOWN(SSL_get_fd(con));
1789 end:
1790         if (con != NULL)
1791                 {
1792                 if (prexit != 0)
1793                         print_stuff(bio_c_out,con,1);
1794                 SSL_free(con);
1795                 }
1796         if (ctx != NULL) SSL_CTX_free(ctx);
1797         if (cert)
1798                 X509_free(cert);
1799         if (key)
1800                 EVP_PKEY_free(key);
1801         if (pass)
1802                 OPENSSL_free(pass);
1803         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
1804         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
1805         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
1806         if (bio_c_out != NULL)
1807                 {
1808                 BIO_free(bio_c_out);
1809                 bio_c_out=NULL;
1810                 }
1811         apps_shutdown();
1812         OPENSSL_EXIT(ret);
1813         }
1814
1815
1816 static void print_stuff(BIO *bio, SSL *s, int full)
1817         {
1818         X509 *peer=NULL;
1819         char *p;
1820         static const char *space="                ";
1821         char buf[BUFSIZ];
1822         STACK_OF(X509) *sk;
1823         STACK_OF(X509_NAME) *sk2;
1824         const SSL_CIPHER *c;
1825         X509_NAME *xn;
1826         int j,i;
1827 #ifndef OPENSSL_NO_COMP
1828         const COMP_METHOD *comp, *expansion;
1829 #endif
1830
1831         if (full)
1832                 {
1833                 int got_a_chain = 0;
1834
1835                 sk=SSL_get_peer_cert_chain(s);
1836                 if (sk != NULL)
1837                         {
1838                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
1839
1840                         BIO_printf(bio,"---\nCertificate chain\n");
1841                         for (i=0; i<sk_X509_num(sk); i++)
1842                                 {
1843                                 X509_NAME_oneline(X509_get_subject_name(
1844                                         sk_X509_value(sk,i)),buf,sizeof buf);
1845                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
1846                                 X509_NAME_oneline(X509_get_issuer_name(
1847                                         sk_X509_value(sk,i)),buf,sizeof buf);
1848                                 BIO_printf(bio,"   i:%s\n",buf);
1849                                 if (c_showcerts)
1850                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
1851                                 }
1852                         }
1853
1854                 BIO_printf(bio,"---\n");
1855                 peer=SSL_get_peer_certificate(s);
1856                 if (peer != NULL)
1857                         {
1858                         BIO_printf(bio,"Server certificate\n");
1859                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
1860                                 PEM_write_bio_X509(bio,peer);
1861                         X509_NAME_oneline(X509_get_subject_name(peer),
1862                                 buf,sizeof buf);
1863                         BIO_printf(bio,"subject=%s\n",buf);
1864                         X509_NAME_oneline(X509_get_issuer_name(peer),
1865                                 buf,sizeof buf);
1866                         BIO_printf(bio,"issuer=%s\n",buf);
1867                         }
1868                 else
1869                         BIO_printf(bio,"no peer certificate available\n");
1870
1871                 sk2=SSL_get_client_CA_list(s);
1872                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
1873                         {
1874                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
1875                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
1876                                 {
1877                                 xn=sk_X509_NAME_value(sk2,i);
1878                                 X509_NAME_oneline(xn,buf,sizeof(buf));
1879                                 BIO_write(bio,buf,strlen(buf));
1880                                 BIO_write(bio,"\n",1);
1881                                 }
1882                         }
1883                 else
1884                         {
1885                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
1886                         }
1887                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
1888                 if (p != NULL)
1889                         {
1890                         /* This works only for SSL 2.  In later protocol
1891                          * versions, the client does not know what other
1892                          * ciphers (in addition to the one to be used
1893                          * in the current connection) the server supports. */
1894
1895                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
1896                         j=i=0;
1897                         while (*p)
1898                                 {
1899                                 if (*p == ':')
1900                                         {
1901                                         BIO_write(bio,space,15-j%25);
1902                                         i++;
1903                                         j=0;
1904                                         BIO_write(bio,((i%3)?" ":"\n"),1);
1905                                         }
1906                                 else
1907                                         {
1908                                         BIO_write(bio,p,1);
1909                                         j++;
1910                                         }
1911                                 p++;
1912                                 }
1913                         BIO_write(bio,"\n",1);
1914                         }
1915
1916                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
1917                         BIO_number_read(SSL_get_rbio(s)),
1918                         BIO_number_written(SSL_get_wbio(s)));
1919                 }
1920         BIO_printf(bio,(SSL_cache_hit(s)?"---\nReused, ":"---\nNew, "));
1921         c=SSL_get_current_cipher(s);
1922         BIO_printf(bio,"%s, Cipher is %s\n",
1923                 SSL_CIPHER_get_version(c),
1924                 SSL_CIPHER_get_name(c));
1925         if (peer != NULL) {
1926                 EVP_PKEY *pktmp;
1927                 pktmp = X509_get_pubkey(peer);
1928                 BIO_printf(bio,"Server public key is %d bit\n",
1929                                                          EVP_PKEY_bits(pktmp));
1930                 EVP_PKEY_free(pktmp);
1931         }
1932         BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
1933                         SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
1934 #ifndef OPENSSL_NO_COMP
1935         comp=SSL_get_current_compression(s);
1936         expansion=SSL_get_current_expansion(s);
1937         BIO_printf(bio,"Compression: %s\n",
1938                 comp ? SSL_COMP_get_name(comp) : "NONE");
1939         BIO_printf(bio,"Expansion: %s\n",
1940                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
1941 #endif
1942
1943 #ifdef SSL_DEBUG
1944         {
1945         /* Print out local port of connection: useful for debugging */
1946         int sock;
1947         struct sockaddr_in ladd;
1948         socklen_t ladd_size = sizeof(ladd);
1949         sock = SSL_get_fd(s);
1950         getsockname(sock, (struct sockaddr *)&ladd, &ladd_size);
1951         BIO_printf(bio_c_out, "LOCAL PORT is %u\n", ntohs(ladd.sin_port));
1952         }
1953 #endif
1954
1955         SSL_SESSION_print(bio,SSL_get_session(s));
1956         BIO_printf(bio,"---\n");
1957         if (peer != NULL)
1958                 X509_free(peer);
1959         /* flush, or debugging output gets mixed with http response */
1960         (void)BIO_flush(bio);
1961         }
1962
1963 #ifndef OPENSSL_NO_TLSEXT
1964
1965 static int ocsp_resp_cb(SSL *s, void *arg)
1966         {
1967         const unsigned char *p;
1968         int len;
1969         OCSP_RESPONSE *rsp;
1970         len = SSL_get_tlsext_status_ocsp_resp(s, &p);
1971         BIO_puts(arg, "OCSP response: ");
1972         if (!p)
1973                 {
1974                 BIO_puts(arg, "no response sent\n");
1975                 return 1;
1976                 }
1977         rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
1978         if (!rsp)
1979                 {
1980                 BIO_puts(arg, "response parse error\n");
1981                 BIO_dump_indent(arg, (char *)p, len, 4);
1982                 return 0;
1983                 }
1984         BIO_puts(arg, "\n======================================\n");
1985         OCSP_RESPONSE_print(arg, rsp, 0);
1986         BIO_puts(arg, "======================================\n");
1987         OCSP_RESPONSE_free(rsp);
1988         return 1;
1989         }
1990
1991 #endif