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