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 "s_apps.h"
 165 #include "timeouts.h"
 166
 167 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 168 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 169 #undef FIONBIO
 170 #endif
 171
 172 #undef PROG
 173 #define PROG    s_client_main
 174
 175 /*#define SSL_HOST_NAME "www.netscape.com" */
 176 /*#define SSL_HOST_NAME "193.118.187.102" */
 177 #define SSL_HOST_NAME   "localhost"
 178
 179 /*#define TEST_CERT "client.pem" */ /* no default cert. */
 180
 181 #undef BUFSIZZ
 182 #define BUFSIZZ 1024*8
 183
 184 extern int verify_depth;
 185 extern int verify_error;
 186
 187 #ifdef FIONBIO
 188 static int c_nbio=0;
 189 #endif
 190 static int c_Pause=0;
 191 static int c_debug=0;
 192 static int c_msg=0;
 193 static int c_showcerts=0;
 194
 195 static void sc_usage(void);
 196 static void print_stuff(BIO *berr,SSL *con,int full);
 197 static BIO *bio_c_out=NULL;
 198 static int c_quiet=0;
 199 static int c_ign_eof=0;
 200
 201 #ifndef OPENSSL_NO_PSK
 202 /* Default PSK identity and key */
 203 static char *psk_identity="Client_identity";
 204 static char *psk_key=NULL; /* by default PSK is not used */
 205
 206 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
 207         unsigned int max_identity_len, unsigned char *psk,
 208         unsigned int max_psk_len)
 209         {
 210         unsigned int psk_len = 0;
 211         int ret;
 212         BIGNUM *bn=NULL;
 213
 214         if (c_debug)
 215                 BIO_printf(bio_c_out, "psk_client_cb\n");
 216         if (!hint)
 217                 {
 218                 /* no ServerKeyExchange message*/
 219                 if (c_debug)
 220                         BIO_printf(bio_c_out,"NULL received PSK identity hint, continuing anyway\n");
 221                 }
 222         else if (c_debug)
 223                 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
 224
 225         /* lookup PSK identity and PSK key based on the given identity hint here */
 226         ret = BIO_snprintf(identity, max_identity_len, psk_identity);
 227         if (ret < 0 || (unsigned int)ret > max_identity_len)
 228                 goto out_err;
 229         if (c_debug)
 230                 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity, ret);
 231         ret=BN_hex2bn(&bn, psk_key);
 232         if (!ret)
 233                 {
 234                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
 235                 if (bn)
 236                         BN_free(bn);
 237                 return 0;
 238                 }
 239
 240         if ((unsigned int)BN_num_bytes(bn) > max_psk_len)
 241                 {
 242                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
 243                         max_psk_len, BN_num_bytes(bn));
 244                 BN_free(bn);
 245                 return 0;
 246                 }
 247
 248         psk_len=BN_bn2bin(bn, psk);
 249         BN_free(bn);
 250         if (psk_len == 0)
 251                 goto out_err;
 252
 253         if (c_debug)
 254                 BIO_printf(bio_c_out, "created PSK len=%d\n", psk_len);
 255
 256         return psk_len;
 257  out_err:
 258         if (c_debug)
 259                 BIO_printf(bio_err, "Error in PSK client callback\n");
 260         return 0;
 261         }
 262 #endif
 263
 264 static void sc_usage(void)
 265         {
 266         BIO_printf(bio_err,"usage: s_client args\n");
 267         BIO_printf(bio_err,"\n");
 268         BIO_printf(bio_err," -host host     - use -connect instead\n");
 269         BIO_printf(bio_err," -port port     - use -connect instead\n");
 270         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
 271
 272         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 273         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 274         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 275         BIO_printf(bio_err," -key arg      - Private key file to use, in cert file if\n");
 276         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 277         BIO_printf(bio_err," -keyform arg  - key format (PEM or DER) PEM default\n");
 278         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 279         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 280         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 281         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 282         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 283         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
 284         BIO_printf(bio_err," -debug        - extra output\n");
 285 #ifdef WATT32
 286         BIO_printf(bio_err," -wdebug       - WATT-32 tcp debugging\n");
 287 #endif
 288         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 289         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
 290         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
 291 #ifdef FIONBIO
 292         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 293 #endif
 294         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 295         BIO_printf(bio_err," -quiet        - no s_client output\n");
 296         BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
 297 #ifndef OPENSSL_NO_PSK
 298         BIO_printf(bio_err," -psk_identity arg - PSK identity\n");
 299         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
 300 #endif
 301         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 302         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 303         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 304         BIO_printf(bio_err," -dtls1        - just use DTLSv1\n");
 305         BIO_printf(bio_err," -mtu          - set the MTU\n");
 306         BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 307         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 308         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
 309         BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
 310         BIO_printf(bio_err,"                 command to see what is available\n");
 311         BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
 312         BIO_printf(bio_err,"                 for those protocols that support it, where\n");
 313         BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
 314         BIO_printf(bio_err,"                 only \"smtp\" and \"pop3\" are supported.\n");
 315 #ifndef OPENSSL_NO_ENGINE
 316         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 317 #endif
 318         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 319 #ifndef OPENSSL_NO_TLSEXT
 320         BIO_printf(bio_err," -servername host  - Set TLS extension servername in ClientHello\n");
 321 #endif
 322         }
 323
 324 #ifndef OPENSSL_NO_TLSEXT
 325
 326 /* This is a context that we pass to callbacks */
 327 typedef struct tlsextctx_st {
 328    BIO * biodebug;
 329    int ack;
 330 } tlsextctx;
 331
 332
 333 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 334         {
 335         tlsextctx * p = (tlsextctx *) arg;
 336         const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 337         if (SSL_get_servername_type(s) != -1)
 338                 p->ack = !SSL_session_reused(s) && hn != NULL;
 339         else
 340                 BIO_printf(bio_err,"Can't use SSL_get_servername\n");
 341
 342         return SSL_TLSEXT_ERR_OK;
 343         }
 344 #endif
 345
 346 int MAIN(int, char **);
 347
 348 int MAIN(int argc, char **argv)
 349         {
 350         int off=0;
 351         SSL *con=NULL;
 352         X509_STORE *store = NULL;
 353         int s,k,width,state=0;
 354         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
 355         int cbuf_len,cbuf_off;
 356         int sbuf_len,sbuf_off;
 357         fd_set readfds,writefds;
 358         short port=PORT;
 359         int full_log=1;
 360         char *host=SSL_HOST_NAME;
 361         char *cert_file=NULL,*key_file=NULL;
 362         int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
 363         char *passarg = NULL, *pass = NULL;
 364         X509 *cert = NULL;
 365         EVP_PKEY *key = NULL;
 366         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 367         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 368         int crlf=0;
 369         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 370         SSL_CTX *ctx=NULL;
 371         int ret=1,in_init=1,i,nbio_test=0;
 372         int starttls_proto = 0;
 373         int prexit = 0, vflags = 0;
 374         const SSL_METHOD *meth=NULL;
 375         int socket_type=SOCK_STREAM;
 376         BIO *sbio;
 377         char *inrand=NULL;
 378 #ifndef OPENSSL_NO_ENGINE
 379         char *engine_id=NULL;
 380         ENGINE *e=NULL;
 381 #endif
 382 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
 383         struct timeval tv;
 384 #endif
 385
 386 #ifndef OPENSSL_NO_TLSEXT
 387         char *servername = NULL;
 388         tlsextctx tlsextcbp =
 389         {NULL,0};
 390 #endif
 391         struct sockaddr peer;
 392         int peerlen = sizeof(peer);
 393         int enable_timeouts = 0 ;
 394         long socket_mtu = 0;
 395
 396 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 397         meth=SSLv23_client_method();
 398 #elif !defined(OPENSSL_NO_SSL3)
 399         meth=SSLv3_client_method();
 400 #elif !defined(OPENSSL_NO_SSL2)
 401         meth=SSLv2_client_method();
 402 #endif
 403
 404         apps_startup();
 405         c_Pause=0;
 406         c_quiet=0;
 407         c_ign_eof=0;
 408         c_debug=0;
 409         c_msg=0;
 410         c_showcerts=0;
 411
 412         if (bio_err == NULL)
 413                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 414
 415         if (!load_config(bio_err, NULL))
 416                 goto end;
 417
 418         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 419                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 420                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
 421                 {
 422                 BIO_printf(bio_err,"out of memory\n");
 423                 goto end;
 424                 }
 425
 426         verify_depth=0;
 427         verify_error=X509_V_OK;
 428 #ifdef FIONBIO
 429         c_nbio=0;
 430 #endif
 431
 432         argc--;
 433         argv++;
 434         while (argc >= 1)
 435                 {
 436                 if      (strcmp(*argv,"-host") == 0)
 437                         {
 438                         if (--argc < 1) goto bad;
 439                         host= *(++argv);
 440                         }
 441                 else if (strcmp(*argv,"-port") == 0)
 442                         {
 443                         if (--argc < 1) goto bad;
 444                         port=atoi(*(++argv));
 445                         if (port == 0) goto bad;
 446                         }
 447                 else if (strcmp(*argv,"-connect") == 0)
 448                         {
 449                         if (--argc < 1) goto bad;
 450                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 451                                 goto bad;
 452                         }
 453                 else if (strcmp(*argv,"-verify") == 0)
 454                         {
 455                         verify=SSL_VERIFY_PEER;
 456                         if (--argc < 1) goto bad;
 457                         verify_depth=atoi(*(++argv));
 458                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 459                         }
 460                 else if (strcmp(*argv,"-cert") == 0)
 461                         {
 462                         if (--argc < 1) goto bad;
 463                         cert_file= *(++argv);
 464                         }
 465                 else if (strcmp(*argv,"-certform") == 0)
 466                         {
 467                         if (--argc < 1) goto bad;
 468                         cert_format = str2fmt(*(++argv));
 469                         }
 470                 else if (strcmp(*argv,"-crl_check") == 0)
 471                         vflags |= X509_V_FLAG_CRL_CHECK;
 472                 else if (strcmp(*argv,"-crl_check_all") == 0)
 473                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
 474                 else if (strcmp(*argv,"-prexit") == 0)
 475                         prexit=1;
 476                 else if (strcmp(*argv,"-crlf") == 0)
 477                         crlf=1;
 478                 else if (strcmp(*argv,"-quiet") == 0)
 479                         {
 480                         c_quiet=1;
 481                         c_ign_eof=1;
 482                         }
 483                 else if (strcmp(*argv,"-ign_eof") == 0)
 484                         c_ign_eof=1;
 485                 else if (strcmp(*argv,"-pause") == 0)
 486                         c_Pause=1;
 487                 else if (strcmp(*argv,"-debug") == 0)
 488                         c_debug=1;
 489 #ifdef WATT32
 490                 else if (strcmp(*argv,"-wdebug") == 0)
 491                         dbug_init();
 492 #endif
 493                 else if (strcmp(*argv,"-msg") == 0)
 494                         c_msg=1;
 495                 else if (strcmp(*argv,"-showcerts") == 0)
 496                         c_showcerts=1;
 497                 else if (strcmp(*argv,"-nbio_test") == 0)
 498                         nbio_test=1;
 499                 else if (strcmp(*argv,"-state") == 0)
 500                         state=1;
 501 #ifndef OPENSSL_NO_PSK
 502                 else if (strcmp(*argv,"-psk_identity") == 0)
 503                         {
 504                         if (--argc < 1) goto bad;
 505                         psk_identity=*(++argv);
 506                         }
 507                 else if (strcmp(*argv,"-psk") == 0)
 508                         {
 509                         size_t j;
 510
 511                         if (--argc < 1) goto bad;
 512                         psk_key=*(++argv);
 513                         for (j = 0; j < strlen(psk_key); j++)
 514                                 {
 515                                 if (isxdigit((int)psk_key[j]))
 516                                         continue;
 517                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
 518                                 goto bad;
 519                                 }
 520                         }
 521 #endif
 522 #ifndef OPENSSL_NO_SSL2
 523                 else if (strcmp(*argv,"-ssl2") == 0)
 524                         meth=SSLv2_client_method();
 525 #endif
 526 #ifndef OPENSSL_NO_SSL3
 527                 else if (strcmp(*argv,"-ssl3") == 0)
 528                         meth=SSLv3_client_method();
 529 #endif
 530 #ifndef OPENSSL_NO_TLS1
 531                 else if (strcmp(*argv,"-tls1") == 0)
 532                         meth=TLSv1_client_method();
 533 #endif
 534 #ifndef OPENSSL_NO_DTLS1
 535                 else if (strcmp(*argv,"-dtls1") == 0)
 536                         {
 537                         meth=DTLSv1_client_method();
 538                         socket_type=SOCK_DGRAM;
 539                         }
 540                 else if (strcmp(*argv,"-timeout") == 0)
 541                         enable_timeouts=1;
 542                 else if (strcmp(*argv,"-mtu") == 0)
 543                         {
 544                         if (--argc < 1) goto bad;
 545                         socket_mtu = atol(*(++argv));
 546                         }
 547 #endif
 548                 else if (strcmp(*argv,"-bugs") == 0)
 549                         bugs=1;
 550                 else if (strcmp(*argv,"-keyform") == 0)
 551                         {
 552                         if (--argc < 1) goto bad;
 553                         key_format = str2fmt(*(++argv));
 554                         }
 555                 else if (strcmp(*argv,"-pass") == 0)
 556                         {
 557                         if (--argc < 1) goto bad;
 558                         passarg = *(++argv);
 559                         }
 560                 else if (strcmp(*argv,"-key") == 0)
 561                         {
 562                         if (--argc < 1) goto bad;
 563                         key_file= *(++argv);
 564                         }
 565                 else if (strcmp(*argv,"-reconnect") == 0)
 566                         {
 567                         reconnect=5;
 568                         }
 569                 else if (strcmp(*argv,"-CApath") == 0)
 570                         {
 571                         if (--argc < 1) goto bad;
 572                         CApath= *(++argv);
 573                         }
 574                 else if (strcmp(*argv,"-CAfile") == 0)
 575                         {
 576                         if (--argc < 1) goto bad;
 577                         CAfile= *(++argv);
 578                         }
 579                 else if (strcmp(*argv,"-no_tls1") == 0)
 580                         off|=SSL_OP_NO_TLSv1;
 581                 else if (strcmp(*argv,"-no_ssl3") == 0)
 582                         off|=SSL_OP_NO_SSLv3;
 583                 else if (strcmp(*argv,"-no_ssl2") == 0)
 584                         off|=SSL_OP_NO_SSLv2;
 585                 else if (strcmp(*argv,"-no_comp") == 0)
 586                         { off|=SSL_OP_NO_COMPRESSION; }
 587                 else if (strcmp(*argv,"-serverpref") == 0)
 588                         off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
 589                 else if (strcmp(*argv,"-cipher") == 0)
 590                         {
 591                         if (--argc < 1) goto bad;
 592                         cipher= *(++argv);
 593                         }
 594 #ifdef FIONBIO
 595                 else if (strcmp(*argv,"-nbio") == 0)
 596                         { c_nbio=1; }
 597 #endif
 598                 else if (strcmp(*argv,"-starttls") == 0)
 599                         {
 600                         if (--argc < 1) goto bad;
 601                         ++argv;
 602                         if (strcmp(*argv,"smtp") == 0)
 603                                 starttls_proto = 1;
 604                         else if (strcmp(*argv,"pop3") == 0)
 605                                 starttls_proto = 2;
 606                         else
 607                                 goto bad;
 608                         }
 609 #ifndef OPENSSL_NO_ENGINE
 610                 else if (strcmp(*argv,"-engine") == 0)
 611                         {
 612                         if (--argc < 1) goto bad;
 613                         engine_id = *(++argv);
 614                         }
 615 #endif
 616                 else if (strcmp(*argv,"-rand") == 0)
 617                         {
 618                         if (--argc < 1) goto bad;
 619                         inrand= *(++argv);
 620                         }
 621 #ifndef OPENSSL_NO_TLSEXT
 622                 else if (strcmp(*argv,"-servername") == 0)
 623                         {
 624                         if (--argc < 1) goto bad;
 625                         servername= *(++argv);
 626                         /* meth=TLSv1_client_method(); */
 627                         }
 628 #endif
 629                 else
 630                         {
 631                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 632                         badop=1;
 633                         break;
 634                         }
 635                 argc--;
 636                 argv++;
 637                 }
 638         if (badop)
 639                 {
 640 bad:
 641                 sc_usage();
 642                 goto end;
 643                 }
 644
 645         OpenSSL_add_ssl_algorithms();
 646         SSL_load_error_strings();
 647
 648 #ifndef OPENSSL_NO_ENGINE
 649         e = setup_engine(bio_err, engine_id, 1);
 650 #endif
 651         if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
 652                 {
 653                 BIO_printf(bio_err, "Error getting password\n");
 654                 goto end;
 655                 }
 656
 657         if (key_file == NULL)
 658                 key_file = cert_file;
 659
 660
 661         if (key_file)
 662
 663                 {
 664
 665                 key = load_key(bio_err, key_file, key_format, 0, pass, e,
 666                                "client certificate private key file");
 667                 if (!key)
 668                         {
 669                         ERR_print_errors(bio_err);
 670                         goto end;
 671                         }
 672
 673                 }
 674
 675         if (cert_file)
 676
 677                 {
 678                 cert = load_cert(bio_err,cert_file,cert_format,
 679                                 NULL, e, "client certificate file");
 680
 681                 if (!cert)
 682                         {
 683                         ERR_print_errors(bio_err);
 684                         goto end;
 685                         }
 686                 }
 687
 688         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 689                 && !RAND_status())
 690                 {
 691                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 692                 }
 693         if (inrand != NULL)
 694                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 695                         app_RAND_load_files(inrand));
 696
 697         if (bio_c_out == NULL)
 698                 {
 699                 if (c_quiet && !c_debug && !c_msg)
 700                         {
 701                         bio_c_out=BIO_new(BIO_s_null());
 702                         }
 703                 else
 704                         {
 705                         if (bio_c_out == NULL)
 706                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 707                         }
 708                 }
 709
 710         ctx=SSL_CTX_new(meth);
 711         if (ctx == NULL)
 712                 {
 713                 ERR_print_errors(bio_err);
 714                 goto end;
 715                 }
 716
 717 #ifndef OPENSSL_NO_PSK
 718         if (psk_key != NULL)
 719                 {
 720                 if (c_debug)
 721                         BIO_printf(bio_c_out, "PSK key given, setting client callback\n");
 722                 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
 723                 }
 724 #endif
 725         if (bugs)
 726                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
 727         else
 728                 SSL_CTX_set_options(ctx,off);
 729         /* DTLS: partial reads end up discarding unread UDP bytes :-(
 730          * Setting read ahead solves this problem.
 731          */
 732         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
 733
 734         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 735         if (cipher != NULL)
 736                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 737                 BIO_printf(bio_err,"error setting cipher list\n");
 738                 ERR_print_errors(bio_err);
 739                 goto end;
 740         }
 741 #if 0
 742         else
 743                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
 744 #endif
 745
 746         SSL_CTX_set_verify(ctx,verify,verify_callback);
 747         if (!set_cert_key_stuff(ctx,cert,key))
 748                 goto end;
 749
 750         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 751                 (!SSL_CTX_set_default_verify_paths(ctx)))
 752                 {
 753                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
 754                 ERR_print_errors(bio_err);
 755                 /* goto end; */
 756                 }
 757
 758         store = SSL_CTX_get_cert_store(ctx);
 759         X509_STORE_set_flags(store, vflags);
 760 #ifndef OPENSSL_NO_TLSEXT
 761         if (servername != NULL)
 762                 {
 763                 tlsextcbp.biodebug = bio_err;
 764                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
 765                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
 766                 }
 767 #endif
 768
 769         con=SSL_new(ctx);
 770 #ifndef OPENSSL_NO_TLSEXT
 771         if (servername != NULL)
 772                 {
 773                 if (!SSL_set_tlsext_host_name(con,servername))
 774                         {
 775                         BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
 776                         ERR_print_errors(bio_err);
 777                         goto end;
 778                         }
 779                 }
 780 #endif
 781 #ifndef OPENSSL_NO_KRB5
 782         if (con  &&  (con->kssl_ctx = kssl_ctx_new()) != NULL)
 783                 {
 784                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVER, host);
 785                 }
 786 #endif  /* OPENSSL_NO_KRB5  */
 787 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
 788
 789 re_start:
 790
 791         if (init_client(&s,host,port,socket_type) == 0)
 792                 {
 793                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
 794                 SHUTDOWN(s);
 795                 goto end;
 796                 }
 797         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
 798
 799 #ifdef FIONBIO
 800         if (c_nbio)
 801                 {
 802                 unsigned long l=1;
 803                 BIO_printf(bio_c_out,"turning on non blocking io\n");
 804                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
 805                         {
 806                         ERR_print_errors(bio_err);
 807                         goto end;
 808                         }
 809                 }
 810 #endif
 811         if (c_Pause & 0x01) con->debug=1;
 812
 813         if ( SSL_version(con) == DTLS1_VERSION)
 814                 {
 815                 struct timeval timeout;
 816
 817                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
 818                 if (getsockname(s, &peer, (void *)&peerlen) < 0)
 819                         {
 820                         BIO_printf(bio_err, "getsockname:errno=%d\n",
 821                                 get_last_socket_error());
 822                         SHUTDOWN(s);
 823                         goto end;
 824                         }
 825
 826                 BIO_ctrl_set_connected(sbio, 1, &peer);
 827
 828                 if (enable_timeouts)
 829                         {
 830                         timeout.tv_sec = 0;
 831                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
 832                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
 833
 834                         timeout.tv_sec = 0;
 835                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
 836                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
 837                         }
 838
 839                 if (socket_mtu > 0)
 840                         {
 841                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
 842                         SSL_set_mtu(con, socket_mtu);
 843                         }
 844                 else
 845                         /* want to do MTU discovery */
 846                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
 847                 }
 848         else
 849                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
 850
 851
 852
 853         if (nbio_test)
 854                 {
 855                 BIO *test;
 856
 857                 test=BIO_new(BIO_f_nbio_test());
 858                 sbio=BIO_push(test,sbio);
 859                 }
 860
 861         if (c_debug)
 862                 {
 863                 con->debug=1;
 864                 BIO_set_callback(sbio,bio_dump_callback);
 865                 BIO_set_callback_arg(sbio,bio_c_out);
 866                 }
 867         if (c_msg)
 868                 {
 869                 SSL_set_msg_callback(con, msg_cb);
 870                 SSL_set_msg_callback_arg(con, bio_c_out);
 871                 }
 872
 873         SSL_set_bio(con,sbio,sbio);
 874         SSL_set_connect_state(con);
 875
 876         /* ok, lets connect */
 877         width=SSL_get_fd(con)+1;
 878
 879         read_tty=1;
 880         write_tty=0;
 881         tty_on=0;
 882         read_ssl=1;
 883         write_ssl=1;
 884
 885         cbuf_len=0;
 886         cbuf_off=0;
 887         sbuf_len=0;
 888         sbuf_off=0;
 889
 890         /* This is an ugly hack that does a lot of assumptions */
 891         if (starttls_proto == 1)
 892                 {
 893                 BIO_read(sbio,mbuf,BUFSIZZ);
 894                 BIO_printf(sbio,"STARTTLS\r\n");
 895                 BIO_read(sbio,sbuf,BUFSIZZ);
 896                 }
 897         if (starttls_proto == 2)
 898                 {
 899                 BIO_read(sbio,mbuf,BUFSIZZ);
 900                 BIO_printf(sbio,"STLS\r\n");
 901                 BIO_read(sbio,sbuf,BUFSIZZ);
 902                 }
 903
 904         for (;;)
 905                 {
 906                 FD_ZERO(&readfds);
 907                 FD_ZERO(&writefds);
 908
 909                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
 910                         {
 911                         in_init=1;
 912                         tty_on=0;
 913                         }
 914                 else
 915                         {
 916                         tty_on=1;
 917                         if (in_init)
 918                                 {
 919                                 in_init=0;
 920 #ifndef OPENSSL_NO_TLSEXT
 921         if (servername != NULL && !SSL_session_reused(con))
 922                 {
 923                 BIO_printf(bio_c_out,"Server did %sacknowledge servername extension.\n",tlsextcbp.ack?"":"not ");
 924                 }
 925 #endif
 926                                 print_stuff(bio_c_out,con,full_log);
 927                                 if (full_log > 0) full_log--;
 928
 929                                 if (starttls_proto)
 930                                         {
 931                                         BIO_printf(bio_err,"%s",mbuf);
 932                                         /* We don't need to know any more */
 933                                         starttls_proto = 0;
 934                                         }
 935
 936                                 if (reconnect)
 937                                         {
 938                                         reconnect--;
 939                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
 940                                         SSL_shutdown(con);
 941                                         SSL_set_connect_state(con);
 942                                         SHUTDOWN(SSL_get_fd(con));
 943                                         goto re_start;
 944                                         }
 945                                 }
 946                         }
 947
 948                 ssl_pending = read_ssl && SSL_pending(con);
 949
 950                 if (!ssl_pending)
 951                         {
 952 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE)
 953                         if (tty_on)
 954                                 {
 955                                 if (read_tty)  FD_SET(fileno(stdin),&readfds);
 956                                 if (write_tty) FD_SET(fileno(stdout),&writefds);
 957                                 }
 958                         if (read_ssl)
 959                                 FD_SET(SSL_get_fd(con),&readfds);
 960                         if (write_ssl)
 961                                 FD_SET(SSL_get_fd(con),&writefds);
 962 #else
 963                         if(!tty_on || !write_tty) {
 964                                 if (read_ssl)
 965                                         FD_SET(SSL_get_fd(con),&readfds);
 966                                 if (write_ssl)
 967                                         FD_SET(SSL_get_fd(con),&writefds);
 968                         }
 969 #endif
 970 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
 971                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
 972
 973                         /* Note: under VMS with SOCKETSHR the second parameter
 974                          * is currently of type (int *) whereas under other
 975                          * systems it is (void *) if you don't have a cast it
 976                          * will choke the compiler: if you do have a cast then
 977                          * you can either go for (int *) or (void *).
 978                          */
 979 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
 980                         /* Under Windows/DOS we make the assumption that we can
 981                          * always write to the tty: therefore if we need to
 982                          * write to the tty we just fall through. Otherwise
 983                          * we timeout the select every second and see if there
 984                          * are any keypresses. Note: this is a hack, in a proper
 985                          * Windows application we wouldn't do this.
 986                          */
 987                         i=0;
 988                         if(!write_tty) {
 989                                 if(read_tty) {
 990                                         tv.tv_sec = 1;
 991                                         tv.tv_usec = 0;
 992                                         i=select(width,(void *)&readfds,(void *)&writefds,
 993                                                  NULL,&tv);
 994 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
 995                                         if(!i && (!_kbhit() || !read_tty) ) continue;
 996 #else
 997                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
 998 #endif
 999                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1000                                          NULL,NULL);
1001                         }
1002 #elif defined(OPENSSL_SYS_NETWARE)
1003                         if(!write_tty) {
1004                                 if(read_tty) {
1005                                         tv.tv_sec = 1;
1006                                         tv.tv_usec = 0;
1007                                         i=select(width,(void *)&readfds,(void *)&writefds,
1008                                                 NULL,&tv);
1009                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1010                                         NULL,NULL);
1011                         }
1012 #else
1013                         i=select(width,(void *)&readfds,(void *)&writefds,
1014                                  NULL,NULL);
1015 #endif
1016                         if ( i < 0)
1017                                 {
1018                                 BIO_printf(bio_err,"bad select %d\n",
1019                                 get_last_socket_error());
1020                                 goto shut;
1021                                 /* goto end; */
1022                                 }
1023                         }
1024
1025                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
1026                         {
1027                         k=SSL_write(con,&(cbuf[cbuf_off]),
1028                                 (unsigned int)cbuf_len);
1029                         switch (SSL_get_error(con,k))
1030                                 {
1031                         case SSL_ERROR_NONE:
1032                                 cbuf_off+=k;
1033                                 cbuf_len-=k;
1034                                 if (k <= 0) goto end;
1035                                 /* we have done a  write(con,NULL,0); */
1036                                 if (cbuf_len <= 0)
1037                                         {
1038                                         read_tty=1;
1039                                         write_ssl=0;
1040                                         }
1041                                 else /* if (cbuf_len > 0) */
1042                                         {
1043                                         read_tty=0;
1044                                         write_ssl=1;
1045                                         }
1046                                 break;
1047                         case SSL_ERROR_WANT_WRITE:
1048                                 BIO_printf(bio_c_out,"write W BLOCK\n");
1049                                 write_ssl=1;
1050                                 read_tty=0;
1051                                 break;
1052                         case SSL_ERROR_WANT_READ:
1053                                 BIO_printf(bio_c_out,"write R BLOCK\n");
1054                                 write_tty=0;
1055                                 read_ssl=1;
1056                                 write_ssl=0;
1057                                 break;
1058                         case SSL_ERROR_WANT_X509_LOOKUP:
1059                                 BIO_printf(bio_c_out,"write X BLOCK\n");
1060                                 break;
1061                         case SSL_ERROR_ZERO_RETURN:
1062                                 if (cbuf_len != 0)
1063                                         {
1064                                         BIO_printf(bio_c_out,"shutdown\n");
1065                                         goto shut;
1066                                         }
1067                                 else
1068                                         {
1069                                         read_tty=1;
1070                                         write_ssl=0;
1071                                         break;
1072                                         }
1073
1074                         case SSL_ERROR_SYSCALL:
1075                                 if ((k != 0) || (cbuf_len != 0))
1076                                         {
1077                                         BIO_printf(bio_err,"write:errno=%d\n",
1078                                                 get_last_socket_error());
1079                                         goto shut;
1080                                         }
1081                                 else
1082                                         {
1083                                         read_tty=1;
1084                                         write_ssl=0;
1085                                         }
1086                                 break;
1087                         case SSL_ERROR_SSL:
1088                                 ERR_print_errors(bio_err);
1089                                 goto shut;
1090                                 }
1091                         }
1092 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
1093                 /* Assume Windows/DOS can always write */
1094                 else if (!ssl_pending && write_tty)
1095 #else
1096                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
1097 #endif
1098                         {
1099 #ifdef CHARSET_EBCDIC
1100                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
1101 #endif
1102                         i=raw_write_stdout(&(sbuf[sbuf_off]),sbuf_len);
1103
1104                         if (i <= 0)
1105                                 {
1106                                 BIO_printf(bio_c_out,"DONE\n");
1107                                 goto shut;
1108                                 /* goto end; */
1109                                 }
1110
1111                         sbuf_len-=i;;
1112                         sbuf_off+=i;
1113                         if (sbuf_len <= 0)
1114                                 {
1115                                 read_ssl=1;
1116                                 write_tty=0;
1117                                 }
1118                         }
1119                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
1120                         {
1121 #ifdef RENEG
1122 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
1123 #endif
1124 #if 1
1125                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
1126 #else
1127 /* Demo for pending and peek :-) */
1128                         k=SSL_read(con,sbuf,16);
1129 { char zbuf[10240];
1130 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
1131 }
1132 #endif
1133
1134                         switch (SSL_get_error(con,k))
1135                                 {
1136                         case SSL_ERROR_NONE:
1137                                 if (k <= 0)
1138                                         goto end;
1139                                 sbuf_off=0;
1140                                 sbuf_len=k;
1141
1142                                 read_ssl=0;
1143                                 write_tty=1;
1144                                 break;
1145                         case SSL_ERROR_WANT_WRITE:
1146                                 BIO_printf(bio_c_out,"read W BLOCK\n");
1147                                 write_ssl=1;
1148                                 read_tty=0;
1149                                 break;
1150                         case SSL_ERROR_WANT_READ:
1151                                 BIO_printf(bio_c_out,"read R BLOCK\n");
1152                                 write_tty=0;
1153                                 read_ssl=1;
1154                                 if ((read_tty == 0) && (write_ssl == 0))
1155                                         write_ssl=1;
1156                                 break;
1157                         case SSL_ERROR_WANT_X509_LOOKUP:
1158                                 BIO_printf(bio_c_out,"read X BLOCK\n");
1159                                 break;
1160                         case SSL_ERROR_SYSCALL:
1161                                 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
1162                                 goto shut;
1163                         case SSL_ERROR_ZERO_RETURN:
1164                                 BIO_printf(bio_c_out,"closed\n");
1165                                 goto shut;
1166                         case SSL_ERROR_SSL:
1167                                 ERR_print_errors(bio_err);
1168                                 goto shut;
1169                                 /* break; */
1170                                 }
1171                         }
1172
1173 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1174 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1175                 else if (_kbhit())
1176 #else
1177                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
1178 #endif
1179 #elif defined (OPENSSL_SYS_NETWARE)
1180                 else if (_kbhit())
1181 #else
1182                 else if (FD_ISSET(fileno(stdin),&readfds))
1183 #endif
1184                         {
1185                         if (crlf)
1186                                 {
1187                                 int j, lf_num;
1188
1189                                 i=raw_read_stdin(cbuf,BUFSIZZ/2);
1190                                 lf_num = 0;
1191                                 /* both loops are skipped when i <= 0 */
1192                                 for (j = 0; j < i; j++)
1193                                         if (cbuf[j] == '\n')
1194                                                 lf_num++;
1195                                 for (j = i-1; j >= 0; j--)
1196                                         {
1197                                         cbuf[j+lf_num] = cbuf[j];
1198                                         if (cbuf[j] == '\n')
1199                                                 {
1200                                                 lf_num--;
1201                                                 i++;
1202                                                 cbuf[j+lf_num] = '\r';
1203                                                 }
1204                                         }
1205                                 assert(lf_num == 0);
1206                                 }
1207                         else
1208                                 i=raw_read_stdin(cbuf,BUFSIZZ);
1209
1210                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
1211                                 {
1212                                 BIO_printf(bio_err,"DONE\n");
1213                                 goto shut;
1214                                 }
1215
1216                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
1217                                 {
1218                                 BIO_printf(bio_err,"RENEGOTIATING\n");
1219                                 SSL_renegotiate(con);
1220                                 cbuf_len=0;
1221                                 }
1222                         else
1223                                 {
1224                                 cbuf_len=i;
1225                                 cbuf_off=0;
1226 #ifdef CHARSET_EBCDIC
1227                                 ebcdic2ascii(cbuf, cbuf, i);
1228 #endif
1229                                 }
1230
1231                         write_ssl=1;
1232                         read_tty=0;
1233                         }
1234                 }
1235 shut:
1236         SSL_shutdown(con);
1237         SHUTDOWN(SSL_get_fd(con));
1238         ret=0;
1239 end:
1240         if (con != NULL)
1241                 {
1242                 if (prexit != 0)
1243                         print_stuff(bio_c_out,con,1);
1244                 SSL_free(con);
1245                 }
1246         if (ctx != NULL) SSL_CTX_free(ctx);
1247         if (cert)
1248                 X509_free(cert);
1249         if (key)
1250                 EVP_PKEY_free(key);
1251         if (pass)
1252                 OPENSSL_free(pass);
1253         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
1254         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
1255         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
1256         if (bio_c_out != NULL)
1257                 {
1258                 BIO_free(bio_c_out);
1259                 bio_c_out=NULL;
1260                 }
1261         apps_shutdown();
1262         OPENSSL_EXIT(ret);
1263         }
1264
1265
1266 static void print_stuff(BIO *bio, SSL *s, int full)
1267         {
1268         X509 *peer=NULL;
1269         char *p;
1270         static const char *space="                ";
1271         char buf[BUFSIZ];
1272         STACK_OF(X509) *sk;
1273         STACK_OF(X509_NAME) *sk2;
1274         SSL_CIPHER *c;
1275         X509_NAME *xn;
1276         int j,i;
1277 #ifndef OPENSSL_NO_COMP
1278         const COMP_METHOD *comp, *expansion;
1279 #endif
1280
1281         if (full)
1282                 {
1283                 int got_a_chain = 0;
1284
1285                 sk=SSL_get_peer_cert_chain(s);
1286                 if (sk != NULL)
1287                         {
1288                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
1289
1290                         BIO_printf(bio,"---\nCertificate chain\n");
1291                         for (i=0; i<sk_X509_num(sk); i++)
1292                                 {
1293                                 X509_NAME_oneline(X509_get_subject_name(
1294                                         sk_X509_value(sk,i)),buf,sizeof buf);
1295                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
1296                                 X509_NAME_oneline(X509_get_issuer_name(
1297                                         sk_X509_value(sk,i)),buf,sizeof buf);
1298                                 BIO_printf(bio,"   i:%s\n",buf);
1299                                 if (c_showcerts)
1300                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
1301                                 }
1302                         }
1303
1304                 BIO_printf(bio,"---\n");
1305                 peer=SSL_get_peer_certificate(s);
1306                 if (peer != NULL)
1307                         {
1308                         BIO_printf(bio,"Server certificate\n");
1309                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
1310                                 PEM_write_bio_X509(bio,peer);
1311                         X509_NAME_oneline(X509_get_subject_name(peer),
1312                                 buf,sizeof buf);
1313                         BIO_printf(bio,"subject=%s\n",buf);
1314                         X509_NAME_oneline(X509_get_issuer_name(peer),
1315                                 buf,sizeof buf);
1316                         BIO_printf(bio,"issuer=%s\n",buf);
1317                         }
1318                 else
1319                         BIO_printf(bio,"no peer certificate available\n");
1320
1321                 sk2=SSL_get_client_CA_list(s);
1322                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
1323                         {
1324                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
1325                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
1326                                 {
1327                                 xn=sk_X509_NAME_value(sk2,i);
1328                                 X509_NAME_oneline(xn,buf,sizeof(buf));
1329                                 BIO_write(bio,buf,strlen(buf));
1330                                 BIO_write(bio,"\n",1);
1331                                 }
1332                         }
1333                 else
1334                         {
1335                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
1336                         }
1337                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
1338                 if (p != NULL)
1339                         {
1340                         /* This works only for SSL 2.  In later protocol
1341                          * versions, the client does not know what other
1342                          * ciphers (in addition to the one to be used
1343                          * in the current connection) the server supports. */
1344
1345                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
1346                         j=i=0;
1347                         while (*p)
1348                                 {
1349                                 if (*p == ':')
1350                                         {
1351                                         BIO_write(bio,space,15-j%25);
1352                                         i++;
1353                                         j=0;
1354                                         BIO_write(bio,((i%3)?" ":"\n"),1);
1355                                         }
1356                                 else
1357                                         {
1358                                         BIO_write(bio,p,1);
1359                                         j++;
1360                                         }
1361                                 p++;
1362                                 }
1363                         BIO_write(bio,"\n",1);
1364                         }
1365
1366                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
1367                         BIO_number_read(SSL_get_rbio(s)),
1368                         BIO_number_written(SSL_get_wbio(s)));
1369                 }
1370         BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
1371         c=SSL_get_current_cipher(s);
1372         BIO_printf(bio,"%s, Cipher is %s\n",
1373                 SSL_CIPHER_get_version(c),
1374                 SSL_CIPHER_get_name(c));
1375         if (peer != NULL) {
1376                 EVP_PKEY *pktmp;
1377                 pktmp = X509_get_pubkey(peer);
1378                 BIO_printf(bio,"Server public key is %d bit\n",
1379                                                          EVP_PKEY_bits(pktmp));
1380                 EVP_PKEY_free(pktmp);
1381         }
1382 #ifndef OPENSSL_NO_COMP
1383         comp=SSL_get_current_compression(s);
1384         expansion=SSL_get_current_expansion(s);
1385         BIO_printf(bio,"Compression: %s\n",
1386                 comp ? SSL_COMP_get_name(comp) : "NONE");
1387         BIO_printf(bio,"Expansion: %s\n",
1388                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
1389 #endif
1390         SSL_SESSION_print(bio,SSL_get_session(s));
1391         BIO_printf(bio,"---\n");
1392         if (peer != NULL)
1393                 X509_free(peer);
1394         /* flush, or debugging output gets mixed with http response */
1395         BIO_flush(bio);
1396         }
1397