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 #if defined(OPENSSL_SYS_BEOS_R5)
 173 #include <fcntl.h>
 174 #endif
 175
 176 #undef PROG
 177 #define PROG    s_client_main
 178
 179 /*#define SSL_HOST_NAME "www.netscape.com" */
 180 /*#define SSL_HOST_NAME "193.118.187.102" */
 181 #define SSL_HOST_NAME   "localhost"
 182
 183 /*#define TEST_CERT "client.pem" */ /* no default cert. */
 184
 185 #undef BUFSIZZ
 186 #define BUFSIZZ 1024*8
 187
 188 extern int verify_depth;
 189 extern int verify_error;
 190 extern int verify_return_error;
 191
 192 #ifdef FIONBIO
 193 static int c_nbio=0;
 194 #endif
 195 static int c_Pause=0;
 196 static int c_debug=0;
 197 static int c_msg=0;
 198 static int c_showcerts=0;
 199
 200 static void sc_usage(void);
 201 static void print_stuff(BIO *berr,SSL *con,int full);
 202 static BIO *bio_c_out=NULL;
 203 static int c_quiet=0;
 204 static int c_ign_eof=0;
 205
 206 #ifndef OPENSSL_NO_PSK
 207 /* Default PSK identity and key */
 208 static char *psk_identity="Client_identity";
 209 static char *psk_key=NULL; /* by default PSK is not used */
 210
 211 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
 212         unsigned int max_identity_len, unsigned char *psk,
 213         unsigned int max_psk_len)
 214         {
 215         unsigned int psk_len = 0;
 216         int ret;
 217         BIGNUM *bn=NULL;
 218
 219         if (c_debug)
 220                 BIO_printf(bio_c_out, "psk_client_cb\n");
 221         if (!hint)
 222                 {
 223                 /* no ServerKeyExchange message*/
 224                 if (c_debug)
 225                         BIO_printf(bio_c_out,"NULL received PSK identity hint, continuing anyway\n");
 226                 }
 227         else if (c_debug)
 228                 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
 229
 230         /* lookup PSK identity and PSK key based on the given identity hint here */
 231         ret = BIO_snprintf(identity, max_identity_len, psk_identity);
 232         if (ret < 0 || (unsigned int)ret > max_identity_len)
 233                 goto out_err;
 234         if (c_debug)
 235                 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity, ret);
 236         ret=BN_hex2bn(&bn, psk_key);
 237         if (!ret)
 238                 {
 239                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
 240                 if (bn)
 241                         BN_free(bn);
 242                 return 0;
 243                 }
 244
 245         if ((unsigned int)BN_num_bytes(bn) > max_psk_len)
 246                 {
 247                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
 248                         max_psk_len, BN_num_bytes(bn));
 249                 BN_free(bn);
 250                 return 0;
 251                 }
 252
 253         psk_len=BN_bn2bin(bn, psk);
 254         BN_free(bn);
 255         if (psk_len == 0)
 256                 goto out_err;
 257
 258         if (c_debug)
 259                 BIO_printf(bio_c_out, "created PSK len=%d\n", psk_len);
 260
 261         return psk_len;
 262  out_err:
 263         if (c_debug)
 264                 BIO_printf(bio_err, "Error in PSK client callback\n");
 265         return 0;
 266         }
 267 #endif
 268
 269 static void sc_usage(void)
 270         {
 271         BIO_printf(bio_err,"usage: s_client args\n");
 272         BIO_printf(bio_err,"\n");
 273         BIO_printf(bio_err," -host host     - use -connect instead\n");
 274         BIO_printf(bio_err," -port port     - use -connect instead\n");
 275         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
 276
 277         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 278         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 279         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 280         BIO_printf(bio_err," -key arg      - Private key file to use, in cert file if\n");
 281         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 282         BIO_printf(bio_err," -keyform arg  - key format (PEM or DER) PEM default\n");
 283         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 284         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 285         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 286         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 287         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 288         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
 289         BIO_printf(bio_err," -debug        - extra output\n");
 290 #ifdef WATT32
 291         BIO_printf(bio_err," -wdebug       - WATT-32 tcp debugging\n");
 292 #endif
 293         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 294         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
 295         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
 296 #ifdef FIONBIO
 297         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 298 #endif
 299         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 300         BIO_printf(bio_err," -quiet        - no s_client output\n");
 301         BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
 302 #ifndef OPENSSL_NO_PSK
 303         BIO_printf(bio_err," -psk_identity arg - PSK identity\n");
 304         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
 305 #endif
 306         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 307         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 308         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 309         BIO_printf(bio_err," -dtls1        - just use DTLSv1\n");
 310         BIO_printf(bio_err," -mtu          - set the MTU\n");
 311         BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 312         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 313         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
 314         BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
 315         BIO_printf(bio_err,"                 command to see what is available\n");
 316         BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
 317         BIO_printf(bio_err,"                 for those protocols that support it, where\n");
 318         BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
 319         BIO_printf(bio_err,"                 only \"smtp\" and \"pop3\" are supported.\n");
 320 #ifndef OPENSSL_NO_ENGINE
 321         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 322 #endif
 323         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 324 #ifndef OPENSSL_NO_TLSEXT
 325         BIO_printf(bio_err," -servername host  - Set TLS extension servername in ClientHello\n");
 326 #endif
 327         }
 328
 329 #ifndef OPENSSL_NO_TLSEXT
 330
 331 /* This is a context that we pass to callbacks */
 332 typedef struct tlsextctx_st {
 333    BIO * biodebug;
 334    int ack;
 335 } tlsextctx;
 336
 337
 338 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 339         {
 340         tlsextctx * p = (tlsextctx *) arg;
 341         const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 342         if (SSL_get_servername_type(s) != -1)
 343                 p->ack = !SSL_session_reused(s) && hn != NULL;
 344         else
 345                 BIO_printf(bio_err,"Can't use SSL_get_servername\n");
 346
 347         return SSL_TLSEXT_ERR_OK;
 348         }
 349 #endif
 350
 351 int MAIN(int, char **);
 352
 353 int MAIN(int argc, char **argv)
 354         {
 355         int off=0;
 356         SSL *con=NULL;
 357         X509_STORE *store = NULL;
 358         int s,k,width,state=0;
 359         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
 360         int cbuf_len,cbuf_off;
 361         int sbuf_len,sbuf_off;
 362         fd_set readfds,writefds;
 363         short port=PORT;
 364         int full_log=1;
 365         char *host=SSL_HOST_NAME;
 366         char *cert_file=NULL,*key_file=NULL;
 367         int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
 368         char *passarg = NULL, *pass = NULL;
 369         X509 *cert = NULL;
 370         EVP_PKEY *key = NULL;
 371         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 372         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 373         int crlf=0;
 374         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 375         SSL_CTX *ctx=NULL;
 376         int ret=1,in_init=1,i,nbio_test=0;
 377         int starttls_proto = 0;
 378         int prexit = 0, vflags = 0;
 379         const SSL_METHOD *meth=NULL;
 380         int socket_type=SOCK_STREAM;
 381         BIO *sbio;
 382         char *inrand=NULL;
 383 #ifndef OPENSSL_NO_ENGINE
 384         char *engine_id=NULL;
 385         ENGINE *e=NULL;
 386 #endif
 387 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
 388         struct timeval tv;
 389 #if defined(OPENSSL_SYS_BEOS_R5)
 390         int stdin_set = 0;
 391 #endif
 392 #endif
 393
 394 #ifndef OPENSSL_NO_TLSEXT
 395         char *servername = NULL;
 396         tlsextctx tlsextcbp =
 397         {NULL,0};
 398 #endif
 399         struct sockaddr peer;
 400         int peerlen = sizeof(peer);
 401         int enable_timeouts = 0 ;
 402         long socket_mtu = 0;
 403
 404 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 405         meth=SSLv23_client_method();
 406 #elif !defined(OPENSSL_NO_SSL3)
 407         meth=SSLv3_client_method();
 408 #elif !defined(OPENSSL_NO_SSL2)
 409         meth=SSLv2_client_method();
 410 #endif
 411
 412         apps_startup();
 413         c_Pause=0;
 414         c_quiet=0;
 415         c_ign_eof=0;
 416         c_debug=0;
 417         c_msg=0;
 418         c_showcerts=0;
 419
 420         if (bio_err == NULL)
 421                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 422
 423         if (!load_config(bio_err, NULL))
 424                 goto end;
 425
 426         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 427                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 428                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
 429                 {
 430                 BIO_printf(bio_err,"out of memory\n");
 431                 goto end;
 432                 }
 433
 434         verify_depth=0;
 435         verify_error=X509_V_OK;
 436 #ifdef FIONBIO
 437         c_nbio=0;
 438 #endif
 439
 440         argc--;
 441         argv++;
 442         while (argc >= 1)
 443                 {
 444                 if      (strcmp(*argv,"-host") == 0)
 445                         {
 446                         if (--argc < 1) goto bad;
 447                         host= *(++argv);
 448                         }
 449                 else if (strcmp(*argv,"-port") == 0)
 450                         {
 451                         if (--argc < 1) goto bad;
 452                         port=atoi(*(++argv));
 453                         if (port == 0) goto bad;
 454                         }
 455                 else if (strcmp(*argv,"-connect") == 0)
 456                         {
 457                         if (--argc < 1) goto bad;
 458                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 459                                 goto bad;
 460                         }
 461                 else if (strcmp(*argv,"-verify") == 0)
 462                         {
 463                         verify=SSL_VERIFY_PEER;
 464                         if (--argc < 1) goto bad;
 465                         verify_depth=atoi(*(++argv));
 466                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 467                         }
 468                 else if (strcmp(*argv,"-cert") == 0)
 469                         {
 470                         if (--argc < 1) goto bad;
 471                         cert_file= *(++argv);
 472                         }
 473                 else if (strcmp(*argv,"-certform") == 0)
 474                         {
 475                         if (--argc < 1) goto bad;
 476                         cert_format = str2fmt(*(++argv));
 477                         }
 478                 else if (strcmp(*argv,"-crl_check") == 0)
 479                         vflags |= X509_V_FLAG_CRL_CHECK;
 480                 else if (strcmp(*argv,"-crl_check_all") == 0)
 481                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
 482                 else if (strcmp(*argv,"-verify_return_error") == 0)
 483                         verify_return_error = 1;
 484                 else if (strcmp(*argv,"-prexit") == 0)
 485                         prexit=1;
 486                 else if (strcmp(*argv,"-crlf") == 0)
 487                         crlf=1;
 488                 else if (strcmp(*argv,"-quiet") == 0)
 489                         {
 490                         c_quiet=1;
 491                         c_ign_eof=1;
 492                         }
 493                 else if (strcmp(*argv,"-ign_eof") == 0)
 494                         c_ign_eof=1;
 495                 else if (strcmp(*argv,"-pause") == 0)
 496                         c_Pause=1;
 497                 else if (strcmp(*argv,"-debug") == 0)
 498                         c_debug=1;
 499 #ifdef WATT32
 500                 else if (strcmp(*argv,"-wdebug") == 0)
 501                         dbug_init();
 502 #endif
 503                 else if (strcmp(*argv,"-msg") == 0)
 504                         c_msg=1;
 505                 else if (strcmp(*argv,"-showcerts") == 0)
 506                         c_showcerts=1;
 507                 else if (strcmp(*argv,"-nbio_test") == 0)
 508                         nbio_test=1;
 509                 else if (strcmp(*argv,"-state") == 0)
 510                         state=1;
 511 #ifndef OPENSSL_NO_PSK
 512                 else if (strcmp(*argv,"-psk_identity") == 0)
 513                         {
 514                         if (--argc < 1) goto bad;
 515                         psk_identity=*(++argv);
 516                         }
 517                 else if (strcmp(*argv,"-psk") == 0)
 518                         {
 519                         size_t j;
 520
 521                         if (--argc < 1) goto bad;
 522                         psk_key=*(++argv);
 523                         for (j = 0; j < strlen(psk_key); j++)
 524                                 {
 525                                 if (isxdigit((int)psk_key[j]))
 526                                         continue;
 527                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
 528                                 goto bad;
 529                                 }
 530                         }
 531 #endif
 532 #ifndef OPENSSL_NO_SSL2
 533                 else if (strcmp(*argv,"-ssl2") == 0)
 534                         meth=SSLv2_client_method();
 535 #endif
 536 #ifndef OPENSSL_NO_SSL3
 537                 else if (strcmp(*argv,"-ssl3") == 0)
 538                         meth=SSLv3_client_method();
 539 #endif
 540 #ifndef OPENSSL_NO_TLS1
 541                 else if (strcmp(*argv,"-tls1") == 0)
 542                         meth=TLSv1_client_method();
 543 #endif
 544 #ifndef OPENSSL_NO_DTLS1
 545                 else if (strcmp(*argv,"-dtls1") == 0)
 546                         {
 547                         meth=DTLSv1_client_method();
 548                         socket_type=SOCK_DGRAM;
 549                         }
 550                 else if (strcmp(*argv,"-timeout") == 0)
 551                         enable_timeouts=1;
 552                 else if (strcmp(*argv,"-mtu") == 0)
 553                         {
 554                         if (--argc < 1) goto bad;
 555                         socket_mtu = atol(*(++argv));
 556                         }
 557 #endif
 558                 else if (strcmp(*argv,"-bugs") == 0)
 559                         bugs=1;
 560                 else if (strcmp(*argv,"-keyform") == 0)
 561                         {
 562                         if (--argc < 1) goto bad;
 563                         key_format = str2fmt(*(++argv));
 564                         }
 565                 else if (strcmp(*argv,"-pass") == 0)
 566                         {
 567                         if (--argc < 1) goto bad;
 568                         passarg = *(++argv);
 569                         }
 570                 else if (strcmp(*argv,"-key") == 0)
 571                         {
 572                         if (--argc < 1) goto bad;
 573                         key_file= *(++argv);
 574                         }
 575                 else if (strcmp(*argv,"-reconnect") == 0)
 576                         {
 577                         reconnect=5;
 578                         }
 579                 else if (strcmp(*argv,"-CApath") == 0)
 580                         {
 581                         if (--argc < 1) goto bad;
 582                         CApath= *(++argv);
 583                         }
 584                 else if (strcmp(*argv,"-CAfile") == 0)
 585                         {
 586                         if (--argc < 1) goto bad;
 587                         CAfile= *(++argv);
 588                         }
 589                 else if (strcmp(*argv,"-no_tls1") == 0)
 590                         off|=SSL_OP_NO_TLSv1;
 591                 else if (strcmp(*argv,"-no_ssl3") == 0)
 592                         off|=SSL_OP_NO_SSLv3;
 593                 else if (strcmp(*argv,"-no_ssl2") == 0)
 594                         off|=SSL_OP_NO_SSLv2;
 595                 else if (strcmp(*argv,"-no_comp") == 0)
 596                         { off|=SSL_OP_NO_COMPRESSION; }
 597                 else if (strcmp(*argv,"-serverpref") == 0)
 598                         off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
 599                 else if (strcmp(*argv,"-cipher") == 0)
 600                         {
 601                         if (--argc < 1) goto bad;
 602                         cipher= *(++argv);
 603                         }
 604 #ifdef FIONBIO
 605                 else if (strcmp(*argv,"-nbio") == 0)
 606                         { c_nbio=1; }
 607 #endif
 608                 else if (strcmp(*argv,"-starttls") == 0)
 609                         {
 610                         if (--argc < 1) goto bad;
 611                         ++argv;
 612                         if (strcmp(*argv,"smtp") == 0)
 613                                 starttls_proto = 1;
 614                         else if (strcmp(*argv,"pop3") == 0)
 615                                 starttls_proto = 2;
 616                         else
 617                                 goto bad;
 618                         }
 619 #ifndef OPENSSL_NO_ENGINE
 620                 else if (strcmp(*argv,"-engine") == 0)
 621                         {
 622                         if (--argc < 1) goto bad;
 623                         engine_id = *(++argv);
 624                         }
 625 #endif
 626                 else if (strcmp(*argv,"-rand") == 0)
 627                         {
 628                         if (--argc < 1) goto bad;
 629                         inrand= *(++argv);
 630                         }
 631 #ifndef OPENSSL_NO_TLSEXT
 632                 else if (strcmp(*argv,"-servername") == 0)
 633                         {
 634                         if (--argc < 1) goto bad;
 635                         servername= *(++argv);
 636                         /* meth=TLSv1_client_method(); */
 637                         }
 638 #endif
 639                 else
 640                         {
 641                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 642                         badop=1;
 643                         break;
 644                         }
 645                 argc--;
 646                 argv++;
 647                 }
 648         if (badop)
 649                 {
 650 bad:
 651                 sc_usage();
 652                 goto end;
 653                 }
 654
 655         OpenSSL_add_ssl_algorithms();
 656         SSL_load_error_strings();
 657
 658 #ifndef OPENSSL_NO_ENGINE
 659         e = setup_engine(bio_err, engine_id, 1);
 660 #endif
 661         if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
 662                 {
 663                 BIO_printf(bio_err, "Error getting password\n");
 664                 goto end;
 665                 }
 666
 667         if (key_file == NULL)
 668                 key_file = cert_file;
 669
 670
 671         if (key_file)
 672
 673                 {
 674
 675                 key = load_key(bio_err, key_file, key_format, 0, pass, e,
 676                                "client certificate private key file");
 677                 if (!key)
 678                         {
 679                         ERR_print_errors(bio_err);
 680                         goto end;
 681                         }
 682
 683                 }
 684
 685         if (cert_file)
 686
 687                 {
 688                 cert = load_cert(bio_err,cert_file,cert_format,
 689                                 NULL, e, "client certificate file");
 690
 691                 if (!cert)
 692                         {
 693                         ERR_print_errors(bio_err);
 694                         goto end;
 695                         }
 696                 }
 697
 698         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 699                 && !RAND_status())
 700                 {
 701                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 702                 }
 703         if (inrand != NULL)
 704                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 705                         app_RAND_load_files(inrand));
 706
 707         if (bio_c_out == NULL)
 708                 {
 709                 if (c_quiet && !c_debug && !c_msg)
 710                         {
 711                         bio_c_out=BIO_new(BIO_s_null());
 712                         }
 713                 else
 714                         {
 715                         if (bio_c_out == NULL)
 716                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 717                         }
 718                 }
 719
 720         ctx=SSL_CTX_new(meth);
 721         if (ctx == NULL)
 722                 {
 723                 ERR_print_errors(bio_err);
 724                 goto end;
 725                 }
 726
 727 #ifndef OPENSSL_NO_PSK
 728         if (psk_key != NULL)
 729                 {
 730                 if (c_debug)
 731                         BIO_printf(bio_c_out, "PSK key given, setting client callback\n");
 732                 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
 733                 }
 734 #endif
 735         if (bugs)
 736                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
 737         else
 738                 SSL_CTX_set_options(ctx,off);
 739         /* DTLS: partial reads end up discarding unread UDP bytes :-(
 740          * Setting read ahead solves this problem.
 741          */
 742         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
 743
 744         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 745         if (cipher != NULL)
 746                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 747                 BIO_printf(bio_err,"error setting cipher list\n");
 748                 ERR_print_errors(bio_err);
 749                 goto end;
 750         }
 751 #if 0
 752         else
 753                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
 754 #endif
 755
 756         SSL_CTX_set_verify(ctx,verify,verify_callback);
 757         if (!set_cert_key_stuff(ctx,cert,key))
 758                 goto end;
 759
 760         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 761                 (!SSL_CTX_set_default_verify_paths(ctx)))
 762                 {
 763                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
 764                 ERR_print_errors(bio_err);
 765                 /* goto end; */
 766                 }
 767
 768         store = SSL_CTX_get_cert_store(ctx);
 769         X509_STORE_set_flags(store, vflags);
 770 #ifndef OPENSSL_NO_TLSEXT
 771         if (servername != NULL)
 772                 {
 773                 tlsextcbp.biodebug = bio_err;
 774                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
 775                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
 776                 }
 777 #endif
 778
 779         con=SSL_new(ctx);
 780 #ifndef OPENSSL_NO_TLSEXT
 781         if (servername != NULL)
 782                 {
 783                 if (!SSL_set_tlsext_host_name(con,servername))
 784                         {
 785                         BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
 786                         ERR_print_errors(bio_err);
 787                         goto end;
 788                         }
 789                 }
 790 #endif
 791 #ifndef OPENSSL_NO_KRB5
 792         if (con  &&  (con->kssl_ctx = kssl_ctx_new()) != NULL)
 793                 {
 794                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVER, host);
 795                 }
 796 #endif  /* OPENSSL_NO_KRB5  */
 797 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
 798
 799 re_start:
 800
 801         if (init_client(&s,host,port,socket_type) == 0)
 802                 {
 803                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
 804                 SHUTDOWN(s);
 805                 goto end;
 806                 }
 807         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
 808
 809 #ifdef FIONBIO
 810         if (c_nbio)
 811                 {
 812                 unsigned long l=1;
 813                 BIO_printf(bio_c_out,"turning on non blocking io\n");
 814                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
 815                         {
 816                         ERR_print_errors(bio_err);
 817                         goto end;
 818                         }
 819                 }
 820 #endif
 821         if (c_Pause & 0x01) con->debug=1;
 822
 823         if ( SSL_version(con) == DTLS1_VERSION)
 824                 {
 825                 struct timeval timeout;
 826
 827                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
 828                 if (getsockname(s, &peer, (void *)&peerlen) < 0)
 829                         {
 830                         BIO_printf(bio_err, "getsockname:errno=%d\n",
 831                                 get_last_socket_error());
 832                         SHUTDOWN(s);
 833                         goto end;
 834                         }
 835
 836                 BIO_ctrl_set_connected(sbio, 1, &peer);
 837
 838                 if (enable_timeouts)
 839                         {
 840                         timeout.tv_sec = 0;
 841                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
 842                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
 843
 844                         timeout.tv_sec = 0;
 845                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
 846                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
 847                         }
 848
 849                 if (socket_mtu > 0)
 850                         {
 851                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
 852                         SSL_set_mtu(con, socket_mtu);
 853                         }
 854                 else
 855                         /* want to do MTU discovery */
 856                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
 857                 }
 858         else
 859                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
 860
 861
 862
 863         if (nbio_test)
 864                 {
 865                 BIO *test;
 866
 867                 test=BIO_new(BIO_f_nbio_test());
 868                 sbio=BIO_push(test,sbio);
 869                 }
 870
 871         if (c_debug)
 872                 {
 873                 con->debug=1;
 874                 BIO_set_callback(sbio,bio_dump_callback);
 875                 BIO_set_callback_arg(sbio,bio_c_out);
 876                 }
 877         if (c_msg)
 878                 {
 879                 SSL_set_msg_callback(con, msg_cb);
 880                 SSL_set_msg_callback_arg(con, bio_c_out);
 881                 }
 882
 883         SSL_set_bio(con,sbio,sbio);
 884         SSL_set_connect_state(con);
 885
 886         /* ok, lets connect */
 887         width=SSL_get_fd(con)+1;
 888
 889         read_tty=1;
 890         write_tty=0;
 891         tty_on=0;
 892         read_ssl=1;
 893         write_ssl=1;
 894
 895         cbuf_len=0;
 896         cbuf_off=0;
 897         sbuf_len=0;
 898         sbuf_off=0;
 899
 900         /* This is an ugly hack that does a lot of assumptions */
 901         if (starttls_proto == 1)
 902                 {
 903                 BIO_read(sbio,mbuf,BUFSIZZ);
 904                 BIO_printf(sbio,"STARTTLS\r\n");
 905                 BIO_read(sbio,sbuf,BUFSIZZ);
 906                 }
 907         if (starttls_proto == 2)
 908                 {
 909                 BIO_read(sbio,mbuf,BUFSIZZ);
 910                 BIO_printf(sbio,"STLS\r\n");
 911                 BIO_read(sbio,sbuf,BUFSIZZ);
 912                 }
 913
 914         for (;;)
 915                 {
 916                 FD_ZERO(&readfds);
 917                 FD_ZERO(&writefds);
 918
 919                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
 920                         {
 921                         in_init=1;
 922                         tty_on=0;
 923                         }
 924                 else
 925                         {
 926                         tty_on=1;
 927                         if (in_init)
 928                                 {
 929                                 in_init=0;
 930 #ifndef OPENSSL_NO_TLSEXT
 931                                 if (servername != NULL && !SSL_session_reused(con))
 932                                         {
 933                                         BIO_printf(bio_c_out,"Server did %sacknowledge servername extension.\n",tlsextcbp.ack?"":"not ");
 934                                         }
 935 #endif
 936                                 print_stuff(bio_c_out,con,full_log);
 937                                 if (full_log > 0) full_log--;
 938
 939                                 if (starttls_proto)
 940                                         {
 941                                         BIO_printf(bio_err,"%s",mbuf);
 942                                         /* We don't need to know any more */
 943                                         starttls_proto = 0;
 944                                         }
 945
 946                                 if (reconnect)
 947                                         {
 948                                         reconnect--;
 949                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
 950                                         SSL_shutdown(con);
 951                                         SSL_set_connect_state(con);
 952                                         SHUTDOWN(SSL_get_fd(con));
 953                                         goto re_start;
 954                                         }
 955                                 }
 956                         }
 957
 958                 ssl_pending = read_ssl && SSL_pending(con);
 959
 960                 if (!ssl_pending)
 961                         {
 962 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined (OPENSSL_SYS_BEOS_R5)
 963                         if (tty_on)
 964                                 {
 965                                 if (read_tty)  openssl_fdset(fileno(stdin),&readfds);
 966                                 if (write_tty) openssl_fdset(fileno(stdout),&writefds);
 967                                 }
 968                         if (read_ssl)
 969                                 openssl_fdset(SSL_get_fd(con),&readfds);
 970                         if (write_ssl)
 971                                 openssl_fdset(SSL_get_fd(con),&writefds);
 972 #else
 973                         if(!tty_on || !write_tty) {
 974                                 if (read_ssl)
 975                                         openssl_fdset(SSL_get_fd(con),&readfds);
 976                                 if (write_ssl)
 977                                         openssl_fdset(SSL_get_fd(con),&writefds);
 978                         }
 979 #endif
 980 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
 981                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
 982
 983                         /* Note: under VMS with SOCKETSHR the second parameter
 984                          * is currently of type (int *) whereas under other
 985                          * systems it is (void *) if you don't have a cast it
 986                          * will choke the compiler: if you do have a cast then
 987                          * you can either go for (int *) or (void *).
 988                          */
 989 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
 990                         /* Under Windows/DOS we make the assumption that we can
 991                          * always write to the tty: therefore if we need to
 992                          * write to the tty we just fall through. Otherwise
 993                          * we timeout the select every second and see if there
 994                          * are any keypresses. Note: this is a hack, in a proper
 995                          * Windows application we wouldn't do this.
 996                          */
 997                         i=0;
 998                         if(!write_tty) {
 999                                 if(read_tty) {
1000                                         tv.tv_sec = 1;
1001                                         tv.tv_usec = 0;
1002                                         i=select(width,(void *)&readfds,(void *)&writefds,
1003                                                  NULL,&tv);
1004 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1005                                         if(!i && (!_kbhit() || !read_tty) ) continue;
1006 #else
1007                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
1008 #endif
1009                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1010                                          NULL,NULL);
1011                         }
1012 #elif defined(OPENSSL_SYS_NETWARE)
1013                         if(!write_tty) {
1014                                 if(read_tty) {
1015                                         tv.tv_sec = 1;
1016                                         tv.tv_usec = 0;
1017                                         i=select(width,(void *)&readfds,(void *)&writefds,
1018                                                 NULL,&tv);
1019                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1020                                         NULL,NULL);
1021                         }
1022 #elif defined(OPENSSL_SYS_BEOS_R5)
1023                         /* Under BeOS-R5 the situation is similar to DOS */
1024                         i=0;
1025                         stdin_set = 0;
1026                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
1027                         if(!write_tty) {
1028                                 if(read_tty) {
1029                                         tv.tv_sec = 1;
1030                                         tv.tv_usec = 0;
1031                                         i=select(width,(void *)&readfds,(void *)&writefds,
1032                                                  NULL,&tv);
1033                                         if (read(fileno(stdin), sbuf, 0) >= 0)
1034                                                 stdin_set = 1;
1035                                         if (!i && (stdin_set != 1 || !read_tty))
1036                                                 continue;
1037                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
1038                                          NULL,NULL);
1039                         }
1040                         (void)fcntl(fileno(stdin), F_SETFL, 0);
1041 #else
1042                         i=select(width,(void *)&readfds,(void *)&writefds,
1043                                  NULL,NULL);
1044 #endif
1045                         if ( i < 0)
1046                                 {
1047                                 BIO_printf(bio_err,"bad select %d\n",
1048                                 get_last_socket_error());
1049                                 goto shut;
1050                                 /* goto end; */
1051                                 }
1052                         }
1053
1054                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
1055                         {
1056                         k=SSL_write(con,&(cbuf[cbuf_off]),
1057                                 (unsigned int)cbuf_len);
1058                         switch (SSL_get_error(con,k))
1059                                 {
1060                         case SSL_ERROR_NONE:
1061                                 cbuf_off+=k;
1062                                 cbuf_len-=k;
1063                                 if (k <= 0) goto end;
1064                                 /* we have done a  write(con,NULL,0); */
1065                                 if (cbuf_len <= 0)
1066                                         {
1067                                         read_tty=1;
1068                                         write_ssl=0;
1069                                         }
1070                                 else /* if (cbuf_len > 0) */
1071                                         {
1072                                         read_tty=0;
1073                                         write_ssl=1;
1074                                         }
1075                                 break;
1076                         case SSL_ERROR_WANT_WRITE:
1077                                 BIO_printf(bio_c_out,"write W BLOCK\n");
1078                                 write_ssl=1;
1079                                 read_tty=0;
1080                                 break;
1081                         case SSL_ERROR_WANT_READ:
1082                                 BIO_printf(bio_c_out,"write R BLOCK\n");
1083                                 write_tty=0;
1084                                 read_ssl=1;
1085                                 write_ssl=0;
1086                                 break;
1087                         case SSL_ERROR_WANT_X509_LOOKUP:
1088                                 BIO_printf(bio_c_out,"write X BLOCK\n");
1089                                 break;
1090                         case SSL_ERROR_ZERO_RETURN:
1091                                 if (cbuf_len != 0)
1092                                         {
1093                                         BIO_printf(bio_c_out,"shutdown\n");
1094                                         goto shut;
1095                                         }
1096                                 else
1097                                         {
1098                                         read_tty=1;
1099                                         write_ssl=0;
1100                                         break;
1101                                         }
1102
1103                         case SSL_ERROR_SYSCALL:
1104                                 if ((k != 0) || (cbuf_len != 0))
1105                                         {
1106                                         BIO_printf(bio_err,"write:errno=%d\n",
1107                                                 get_last_socket_error());
1108                                         goto shut;
1109                                         }
1110                                 else
1111                                         {
1112                                         read_tty=1;
1113                                         write_ssl=0;
1114                                         }
1115                                 break;
1116                         case SSL_ERROR_SSL:
1117                                 ERR_print_errors(bio_err);
1118                                 goto shut;
1119                                 }
1120                         }
1121 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
1122                 /* Assume Windows/DOS/BeOS can always write */
1123                 else if (!ssl_pending && write_tty)
1124 #else
1125                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
1126 #endif
1127                         {
1128 #ifdef CHARSET_EBCDIC
1129                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
1130 #endif
1131                         i=raw_write_stdout(&(sbuf[sbuf_off]),sbuf_len);
1132
1133                         if (i <= 0)
1134                                 {
1135                                 BIO_printf(bio_c_out,"DONE\n");
1136                                 goto shut;
1137                                 /* goto end; */
1138                                 }
1139
1140                         sbuf_len-=i;;
1141                         sbuf_off+=i;
1142                         if (sbuf_len <= 0)
1143                                 {
1144                                 read_ssl=1;
1145                                 write_tty=0;
1146                                 }
1147                         }
1148                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
1149                         {
1150 #ifdef RENEG
1151 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
1152 #endif
1153 #if 1
1154                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
1155 #else
1156 /* Demo for pending and peek :-) */
1157                         k=SSL_read(con,sbuf,16);
1158 { char zbuf[10240];
1159 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
1160 }
1161 #endif
1162
1163                         switch (SSL_get_error(con,k))
1164                                 {
1165                         case SSL_ERROR_NONE:
1166                                 if (k <= 0)
1167                                         goto end;
1168                                 sbuf_off=0;
1169                                 sbuf_len=k;
1170
1171                                 read_ssl=0;
1172                                 write_tty=1;
1173                                 break;
1174                         case SSL_ERROR_WANT_WRITE:
1175                                 BIO_printf(bio_c_out,"read W BLOCK\n");
1176                                 write_ssl=1;
1177                                 read_tty=0;
1178                                 break;
1179                         case SSL_ERROR_WANT_READ:
1180                                 BIO_printf(bio_c_out,"read R BLOCK\n");
1181                                 write_tty=0;
1182                                 read_ssl=1;
1183                                 if ((read_tty == 0) && (write_ssl == 0))
1184                                         write_ssl=1;
1185                                 break;
1186                         case SSL_ERROR_WANT_X509_LOOKUP:
1187                                 BIO_printf(bio_c_out,"read X BLOCK\n");
1188                                 break;
1189                         case SSL_ERROR_SYSCALL:
1190                                 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
1191                                 goto shut;
1192                         case SSL_ERROR_ZERO_RETURN:
1193                                 BIO_printf(bio_c_out,"closed\n");
1194                                 goto shut;
1195                         case SSL_ERROR_SSL:
1196                                 ERR_print_errors(bio_err);
1197                                 goto shut;
1198                                 /* break; */
1199                                 }
1200                         }
1201
1202 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1203 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1204                 else if (_kbhit())
1205 #else
1206                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
1207 #endif
1208 #elif defined (OPENSSL_SYS_NETWARE)
1209                 else if (_kbhit())
1210 #elif defined(OPENSSL_SYS_BEOS_R5)
1211                 else if (stdin_set)
1212 #else
1213                 else if (FD_ISSET(fileno(stdin),&readfds))
1214 #endif
1215                         {
1216                         if (crlf)
1217                                 {
1218                                 int j, lf_num;
1219
1220                                 i=raw_read_stdin(cbuf,BUFSIZZ/2);
1221                                 lf_num = 0;
1222                                 /* both loops are skipped when i <= 0 */
1223                                 for (j = 0; j < i; j++)
1224                                         if (cbuf[j] == '\n')
1225                                                 lf_num++;
1226                                 for (j = i-1; j >= 0; j--)
1227                                         {
1228                                         cbuf[j+lf_num] = cbuf[j];
1229                                         if (cbuf[j] == '\n')
1230                                                 {
1231                                                 lf_num--;
1232                                                 i++;
1233                                                 cbuf[j+lf_num] = '\r';
1234                                                 }
1235                                         }
1236                                 assert(lf_num == 0);
1237                                 }
1238                         else
1239                                 i=raw_read_stdin(cbuf,BUFSIZZ);
1240
1241                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
1242                                 {
1243                                 BIO_printf(bio_err,"DONE\n");
1244                                 goto shut;
1245                                 }
1246
1247                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
1248                                 {
1249                                 BIO_printf(bio_err,"RENEGOTIATING\n");
1250                                 SSL_renegotiate(con);
1251                                 cbuf_len=0;
1252                                 }
1253                         else
1254                                 {
1255                                 cbuf_len=i;
1256                                 cbuf_off=0;
1257 #ifdef CHARSET_EBCDIC
1258                                 ebcdic2ascii(cbuf, cbuf, i);
1259 #endif
1260                                 }
1261
1262                         write_ssl=1;
1263                         read_tty=0;
1264                         }
1265                 }
1266 shut:
1267         if (in_init)
1268                 print_stuff(bio_c_out,con,full_log);
1269         SSL_shutdown(con);
1270         SHUTDOWN(SSL_get_fd(con));
1271         ret=0;
1272 end:
1273         if (con != NULL)
1274                 {
1275                 if (prexit != 0)
1276                         print_stuff(bio_c_out,con,1);
1277                 SSL_free(con);
1278                 }
1279         if (ctx != NULL) SSL_CTX_free(ctx);
1280         if (cert)
1281                 X509_free(cert);
1282         if (key)
1283                 EVP_PKEY_free(key);
1284         if (pass)
1285                 OPENSSL_free(pass);
1286         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
1287         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
1288         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
1289         if (bio_c_out != NULL)
1290                 {
1291                 BIO_free(bio_c_out);
1292                 bio_c_out=NULL;
1293                 }
1294         apps_shutdown();
1295         OPENSSL_EXIT(ret);
1296         }
1297
1298
1299 static void print_stuff(BIO *bio, SSL *s, int full)
1300         {
1301         X509 *peer=NULL;
1302         char *p;
1303         static const char *space="                ";
1304         char buf[BUFSIZ];
1305         STACK_OF(X509) *sk;
1306         STACK_OF(X509_NAME) *sk2;
1307         SSL_CIPHER *c;
1308         X509_NAME *xn;
1309         int j,i;
1310 #ifndef OPENSSL_NO_COMP
1311         const COMP_METHOD *comp, *expansion;
1312 #endif
1313
1314         if (full)
1315                 {
1316                 int got_a_chain = 0;
1317
1318                 sk=SSL_get_peer_cert_chain(s);
1319                 if (sk != NULL)
1320                         {
1321                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
1322
1323                         BIO_printf(bio,"---\nCertificate chain\n");
1324                         for (i=0; i<sk_X509_num(sk); i++)
1325                                 {
1326                                 X509_NAME_oneline(X509_get_subject_name(
1327                                         sk_X509_value(sk,i)),buf,sizeof buf);
1328                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
1329                                 X509_NAME_oneline(X509_get_issuer_name(
1330                                         sk_X509_value(sk,i)),buf,sizeof buf);
1331                                 BIO_printf(bio,"   i:%s\n",buf);
1332                                 if (c_showcerts)
1333                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
1334                                 }
1335                         }
1336
1337                 BIO_printf(bio,"---\n");
1338                 peer=SSL_get_peer_certificate(s);
1339                 if (peer != NULL)
1340                         {
1341                         BIO_printf(bio,"Server certificate\n");
1342                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
1343                                 PEM_write_bio_X509(bio,peer);
1344                         X509_NAME_oneline(X509_get_subject_name(peer),
1345                                 buf,sizeof buf);
1346                         BIO_printf(bio,"subject=%s\n",buf);
1347                         X509_NAME_oneline(X509_get_issuer_name(peer),
1348                                 buf,sizeof buf);
1349                         BIO_printf(bio,"issuer=%s\n",buf);
1350                         }
1351                 else
1352                         BIO_printf(bio,"no peer certificate available\n");
1353
1354                 sk2=SSL_get_client_CA_list(s);
1355                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
1356                         {
1357                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
1358                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
1359                                 {
1360                                 xn=sk_X509_NAME_value(sk2,i);
1361                                 X509_NAME_oneline(xn,buf,sizeof(buf));
1362                                 BIO_write(bio,buf,strlen(buf));
1363                                 BIO_write(bio,"\n",1);
1364                                 }
1365                         }
1366                 else
1367                         {
1368                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
1369                         }
1370                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
1371                 if (p != NULL)
1372                         {
1373                         /* This works only for SSL 2.  In later protocol
1374                          * versions, the client does not know what other
1375                          * ciphers (in addition to the one to be used
1376                          * in the current connection) the server supports. */
1377
1378                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
1379                         j=i=0;
1380                         while (*p)
1381                                 {
1382                                 if (*p == ':')
1383                                         {
1384                                         BIO_write(bio,space,15-j%25);
1385                                         i++;
1386                                         j=0;
1387                                         BIO_write(bio,((i%3)?" ":"\n"),1);
1388                                         }
1389                                 else
1390                                         {
1391                                         BIO_write(bio,p,1);
1392                                         j++;
1393                                         }
1394                                 p++;
1395                                 }
1396                         BIO_write(bio,"\n",1);
1397                         }
1398
1399                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
1400                         BIO_number_read(SSL_get_rbio(s)),
1401                         BIO_number_written(SSL_get_wbio(s)));
1402                 }
1403         BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
1404         c=SSL_get_current_cipher(s);
1405         BIO_printf(bio,"%s, Cipher is %s\n",
1406                 SSL_CIPHER_get_version(c),
1407                 SSL_CIPHER_get_name(c));
1408         if (peer != NULL) {
1409                 EVP_PKEY *pktmp;
1410                 pktmp = X509_get_pubkey(peer);
1411                 BIO_printf(bio,"Server public key is %d bit\n",
1412                                                          EVP_PKEY_bits(pktmp));
1413                 EVP_PKEY_free(pktmp);
1414         }
1415 #ifndef OPENSSL_NO_COMP
1416         comp=SSL_get_current_compression(s);
1417         expansion=SSL_get_current_expansion(s);
1418         BIO_printf(bio,"Compression: %s\n",
1419                 comp ? SSL_COMP_get_name(comp) : "NONE");
1420         BIO_printf(bio,"Expansion: %s\n",
1421                 expansion ? SSL_COMP_get_name(expansion) : "NONE");
1422 #endif
1423         SSL_SESSION_print(bio,SSL_get_session(s));
1424         BIO_printf(bio,"---\n");
1425         if (peer != NULL)
1426                 X509_free(peer);
1427         /* flush, or debugging output gets mixed with http response */
1428         BIO_flush(bio);
1429         }
1430