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) 1998-2001 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 #include <assert.h>
 113 #include <stdio.h>
 114 #include <stdlib.h>
 115 #include <string.h>
 116 #include <openssl/e_os2.h>
 117 #ifdef OPENSSL_NO_STDIO
 118 #define APPS_WIN16
 119 #endif
 120
 121 /* With IPv6, it looks like Digital has mixed up the proper order of
 122    recursive header file inclusion, resulting in the compiler complaining
 123    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
 124    is needed to have fileno() declared correctly...  So let's define u_int */
 125 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
 126 #define __U_INT
 127 typedef unsigned int u_int;
 128 #endif
 129
 130 #define USE_SOCKETS
 131 #include "apps.h"
 132 #include <openssl/x509.h>
 133 #include <openssl/ssl.h>
 134 #include <openssl/err.h>
 135 #include <openssl/pem.h>
 136 #include <openssl/rand.h>
 137 #include "s_apps.h"
 138
 139 #ifdef OPENSSL_SYS_WINCE
 140 /* Windows CE incorrectly defines fileno as returning void*, so to avoid problems below... */
 141 #ifdef fileno
 142 #undef fileno
 143 #endif
 144 #define fileno(a) (int)_fileno(a)
 145 #endif
 146
 147
 148 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 149 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 150 #undef FIONBIO
 151 #endif
 152
 153 #undef PROG
 154 #define PROG    s_client_main
 155
 156 /*#define SSL_HOST_NAME "www.netscape.com" */
 157 /*#define SSL_HOST_NAME "193.118.187.102" */
 158 #define SSL_HOST_NAME   "localhost"
 159
 160 /*#define TEST_CERT "client.pem" */ /* no default cert. */
 161
 162 #undef BUFSIZZ
 163 #define BUFSIZZ 1024*8
 164
 165 extern int verify_depth;
 166 extern int verify_error;
 167
 168 #ifdef FIONBIO
 169 static int c_nbio=0;
 170 #endif
 171 static int c_Pause=0;
 172 static int c_debug=0;
 173 static int c_msg=0;
 174 static int c_showcerts=0;
 175
 176 static void sc_usage(void);
 177 static void print_stuff(BIO *berr,SSL *con,int full);
 178 static BIO *bio_c_out=NULL;
 179 static int c_quiet=0;
 180 static int c_ign_eof=0;
 181
 182 static void sc_usage(void)
 183         {
 184         BIO_printf(bio_err,"usage: s_client args\n");
 185         BIO_printf(bio_err,"\n");
 186         BIO_printf(bio_err," -host host     - use -connect instead\n");
 187         BIO_printf(bio_err," -port port     - use -connect instead\n");
 188         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
 189
 190         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 191         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 192         BIO_printf(bio_err," -key arg      - Private key file to use, PEM format assumed, in cert file if\n");
 193         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 194         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 195         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 196         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 197         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 198         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
 199         BIO_printf(bio_err," -debug        - extra output\n");
 200 #ifdef WATT32
 201         BIO_printf(bio_err," -wdebug       - WATT-32 tcp debugging\n");
 202 #endif
 203         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 204         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
 205         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
 206 #ifdef FIONBIO
 207         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 208 #endif
 209         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 210         BIO_printf(bio_err," -quiet        - no s_client output\n");
 211         BIO_printf(bio_err," -ign_eof      - ignore input eof (default when -quiet)\n");
 212         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 213         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 214         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 215         BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 216         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 217         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences (only SSLv2)\n");
 218         BIO_printf(bio_err," -cipher       - preferred cipher to use, use the 'openssl ciphers'\n");
 219         BIO_printf(bio_err,"                 command to see what is available\n");
 220         BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
 221         BIO_printf(bio_err,"                 for those protocols that support it, where\n");
 222         BIO_printf(bio_err,"                 'prot' defines which one to assume.  Currently,\n");
 223         BIO_printf(bio_err,"                 only \"smtp\" and \"pop3\" are supported.\n");
 224 #ifndef OPENSSL_NO_ENGINE
 225         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 226 #endif
 227         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 228
 229         }
 230
 231 int MAIN(int, char **);
 232
 233 int MAIN(int argc, char **argv)
 234         {
 235         int off=0;
 236         SSL *con=NULL,*con2=NULL;
 237         X509_STORE *store = NULL;
 238         int s,k,width,state=0;
 239         char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
 240         int cbuf_len,cbuf_off;
 241         int sbuf_len,sbuf_off;
 242         fd_set readfds,writefds;
 243         short port=PORT;
 244         int full_log=1;
 245         char *host=SSL_HOST_NAME;
 246         char *cert_file=NULL,*key_file=NULL;
 247         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 248         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 249         int crlf=0;
 250         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 251         SSL_CTX *ctx=NULL;
 252         int ret=1,in_init=1,i,nbio_test=0;
 253         int starttls_proto = 0;
 254         int prexit = 0, vflags = 0;
 255         SSL_METHOD *meth=NULL;
 256         BIO *sbio;
 257         char *inrand=NULL;
 258 #ifndef OPENSSL_NO_ENGINE
 259         char *engine_id=NULL;
 260         ENGINE *e=NULL;
 261 #endif
 262 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
 263         struct timeval tv;
 264 #endif
 265
 266 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 267         meth=SSLv23_client_method();
 268 #elif !defined(OPENSSL_NO_SSL3)
 269         meth=SSLv3_client_method();
 270 #elif !defined(OPENSSL_NO_SSL2)
 271         meth=SSLv2_client_method();
 272 #endif
 273
 274         apps_startup();
 275         c_Pause=0;
 276         c_quiet=0;
 277         c_ign_eof=0;
 278         c_debug=0;
 279         c_msg=0;
 280         c_showcerts=0;
 281
 282         if (bio_err == NULL)
 283                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 284
 285         if (!load_config(bio_err, NULL))
 286                 goto end;
 287
 288         if (    ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 289                 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
 290                 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
 291                 {
 292                 BIO_printf(bio_err,"out of memory\n");
 293                 goto end;
 294                 }
 295
 296         verify_depth=0;
 297         verify_error=X509_V_OK;
 298 #ifdef FIONBIO
 299         c_nbio=0;
 300 #endif
 301
 302         argc--;
 303         argv++;
 304         while (argc >= 1)
 305                 {
 306                 if      (strcmp(*argv,"-host") == 0)
 307                         {
 308                         if (--argc < 1) goto bad;
 309                         host= *(++argv);
 310                         }
 311                 else if (strcmp(*argv,"-port") == 0)
 312                         {
 313                         if (--argc < 1) goto bad;
 314                         port=atoi(*(++argv));
 315                         if (port == 0) goto bad;
 316                         }
 317                 else if (strcmp(*argv,"-connect") == 0)
 318                         {
 319                         if (--argc < 1) goto bad;
 320                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 321                                 goto bad;
 322                         }
 323                 else if (strcmp(*argv,"-verify") == 0)
 324                         {
 325                         verify=SSL_VERIFY_PEER;
 326                         if (--argc < 1) goto bad;
 327                         verify_depth=atoi(*(++argv));
 328                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 329                         }
 330                 else if (strcmp(*argv,"-cert") == 0)
 331                         {
 332                         if (--argc < 1) goto bad;
 333                         cert_file= *(++argv);
 334                         }
 335                 else if (strcmp(*argv,"-crl_check") == 0)
 336                         vflags |= X509_V_FLAG_CRL_CHECK;
 337                 else if (strcmp(*argv,"-crl_check_all") == 0)
 338                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
 339                 else if (strcmp(*argv,"-prexit") == 0)
 340                         prexit=1;
 341                 else if (strcmp(*argv,"-crlf") == 0)
 342                         crlf=1;
 343                 else if (strcmp(*argv,"-quiet") == 0)
 344                         {
 345                         c_quiet=1;
 346                         c_ign_eof=1;
 347                         }
 348                 else if (strcmp(*argv,"-ign_eof") == 0)
 349                         c_ign_eof=1;
 350                 else if (strcmp(*argv,"-pause") == 0)
 351                         c_Pause=1;
 352                 else if (strcmp(*argv,"-debug") == 0)
 353                         c_debug=1;
 354 #ifdef WATT32
 355                 else if (strcmp(*argv,"-wdebug") == 0)
 356                         dbug_init();
 357 #endif
 358                 else if (strcmp(*argv,"-msg") == 0)
 359                         c_msg=1;
 360                 else if (strcmp(*argv,"-showcerts") == 0)
 361                         c_showcerts=1;
 362                 else if (strcmp(*argv,"-nbio_test") == 0)
 363                         nbio_test=1;
 364                 else if (strcmp(*argv,"-state") == 0)
 365                         state=1;
 366 #ifndef OPENSSL_NO_SSL2
 367                 else if (strcmp(*argv,"-ssl2") == 0)
 368                         meth=SSLv2_client_method();
 369 #endif
 370 #ifndef OPENSSL_NO_SSL3
 371                 else if (strcmp(*argv,"-ssl3") == 0)
 372                         meth=SSLv3_client_method();
 373 #endif
 374 #ifndef OPENSSL_NO_TLS1
 375                 else if (strcmp(*argv,"-tls1") == 0)
 376                         meth=TLSv1_client_method();
 377 #endif
 378                 else if (strcmp(*argv,"-bugs") == 0)
 379                         bugs=1;
 380                 else if (strcmp(*argv,"-key") == 0)
 381                         {
 382                         if (--argc < 1) goto bad;
 383                         key_file= *(++argv);
 384                         }
 385                 else if (strcmp(*argv,"-reconnect") == 0)
 386                         {
 387                         reconnect=5;
 388                         }
 389                 else if (strcmp(*argv,"-CApath") == 0)
 390                         {
 391                         if (--argc < 1) goto bad;
 392                         CApath= *(++argv);
 393                         }
 394                 else if (strcmp(*argv,"-CAfile") == 0)
 395                         {
 396                         if (--argc < 1) goto bad;
 397                         CAfile= *(++argv);
 398                         }
 399                 else if (strcmp(*argv,"-no_tls1") == 0)
 400                         off|=SSL_OP_NO_TLSv1;
 401                 else if (strcmp(*argv,"-no_ssl3") == 0)
 402                         off|=SSL_OP_NO_SSLv3;
 403                 else if (strcmp(*argv,"-no_ssl2") == 0)
 404                         off|=SSL_OP_NO_SSLv2;
 405                 else if (strcmp(*argv,"-serverpref") == 0)
 406                         off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
 407                 else if (strcmp(*argv,"-cipher") == 0)
 408                         {
 409                         if (--argc < 1) goto bad;
 410                         cipher= *(++argv);
 411                         }
 412 #ifdef FIONBIO
 413                 else if (strcmp(*argv,"-nbio") == 0)
 414                         { c_nbio=1; }
 415 #endif
 416                 else if (strcmp(*argv,"-starttls") == 0)
 417                         {
 418                         if (--argc < 1) goto bad;
 419                         ++argv;
 420                         if (strcmp(*argv,"smtp") == 0)
 421                                 starttls_proto = 1;
 422                         else if (strcmp(*argv,"pop3") == 0)
 423                                 starttls_proto = 2;
 424                         else
 425                                 goto bad;
 426                         }
 427 #ifndef OPENSSL_NO_ENGINE
 428                 else if (strcmp(*argv,"-engine") == 0)
 429                         {
 430                         if (--argc < 1) goto bad;
 431                         engine_id = *(++argv);
 432                         }
 433 #endif
 434                 else if (strcmp(*argv,"-rand") == 0)
 435                         {
 436                         if (--argc < 1) goto bad;
 437                         inrand= *(++argv);
 438                         }
 439                 else
 440                         {
 441                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 442                         badop=1;
 443                         break;
 444                         }
 445                 argc--;
 446                 argv++;
 447                 }
 448         if (badop)
 449                 {
 450 bad:
 451                 sc_usage();
 452                 goto end;
 453                 }
 454
 455         OpenSSL_add_ssl_algorithms();
 456         SSL_load_error_strings();
 457
 458 #ifndef OPENSSL_NO_ENGINE
 459         e = setup_engine(bio_err, engine_id, 1);
 460 #endif
 461
 462         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 463                 && !RAND_status())
 464                 {
 465                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 466                 }
 467         if (inrand != NULL)
 468                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 469                         app_RAND_load_files(inrand));
 470
 471         if (bio_c_out == NULL)
 472                 {
 473                 if (c_quiet && !c_debug && !c_msg)
 474                         {
 475                         bio_c_out=BIO_new(BIO_s_null());
 476                         }
 477                 else
 478                         {
 479                         if (bio_c_out == NULL)
 480                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 481                         }
 482                 }
 483
 484         ctx=SSL_CTX_new(meth);
 485         if (ctx == NULL)
 486                 {
 487                 ERR_print_errors(bio_err);
 488                 goto end;
 489                 }
 490
 491         if (bugs)
 492                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
 493         else
 494                 SSL_CTX_set_options(ctx,off);
 495
 496         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 497         if (cipher != NULL)
 498                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 499                 BIO_printf(bio_err,"error setting cipher list\n");
 500                 ERR_print_errors(bio_err);
 501                 goto end;
 502         }
 503 #if 0
 504         else
 505                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
 506 #endif
 507
 508         SSL_CTX_set_verify(ctx,verify,verify_callback);
 509         if (!set_cert_stuff(ctx,cert_file,key_file))
 510                 goto end;
 511
 512         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 513                 (!SSL_CTX_set_default_verify_paths(ctx)))
 514                 {
 515                 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
 516                 ERR_print_errors(bio_err);
 517                 /* goto end; */
 518                 }
 519
 520         store = SSL_CTX_get_cert_store(ctx);
 521         X509_STORE_set_flags(store, vflags);
 522
 523         con=SSL_new(ctx);
 524 #ifndef OPENSSL_NO_KRB5
 525         if (con  &&  (con->kssl_ctx = kssl_ctx_new()) != NULL)
 526                 {
 527                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVER, host);
 528                 }
 529 #endif  /* OPENSSL_NO_KRB5  */
 530 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
 531
 532 re_start:
 533
 534         if (init_client(&s,host,port) == 0)
 535                 {
 536                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
 537                 SHUTDOWN(s);
 538                 goto end;
 539                 }
 540         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
 541
 542 #ifdef FIONBIO
 543         if (c_nbio)
 544                 {
 545                 unsigned long l=1;
 546                 BIO_printf(bio_c_out,"turning on non blocking io\n");
 547                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
 548                         {
 549                         ERR_print_errors(bio_err);
 550                         goto end;
 551                         }
 552                 }
 553 #endif
 554         if (c_Pause & 0x01) con->debug=1;
 555         sbio=BIO_new_socket(s,BIO_NOCLOSE);
 556
 557         if (nbio_test)
 558                 {
 559                 BIO *test;
 560
 561                 test=BIO_new(BIO_f_nbio_test());
 562                 sbio=BIO_push(test,sbio);
 563                 }
 564
 565         if (c_debug)
 566                 {
 567                 con->debug=1;
 568                 BIO_set_callback(sbio,bio_dump_cb);
 569                 BIO_set_callback_arg(sbio,bio_c_out);
 570                 }
 571         if (c_msg)
 572                 {
 573                 SSL_set_msg_callback(con, msg_cb);
 574                 SSL_set_msg_callback_arg(con, bio_c_out);
 575                 }
 576
 577         SSL_set_bio(con,sbio,sbio);
 578         SSL_set_connect_state(con);
 579
 580         /* ok, lets connect */
 581         width=SSL_get_fd(con)+1;
 582
 583         read_tty=1;
 584         write_tty=0;
 585         tty_on=0;
 586         read_ssl=1;
 587         write_ssl=1;
 588
 589         cbuf_len=0;
 590         cbuf_off=0;
 591         sbuf_len=0;
 592         sbuf_off=0;
 593
 594         /* This is an ugly hack that does a lot of assumptions */
 595         if (starttls_proto == 1)
 596                 {
 597                 BIO_read(sbio,mbuf,BUFSIZZ);
 598                 BIO_printf(sbio,"STARTTLS\r\n");
 599                 BIO_read(sbio,sbuf,BUFSIZZ);
 600                 }
 601         if (starttls_proto == 2)
 602                 {
 603                 BIO_read(sbio,mbuf,BUFSIZZ);
 604                 BIO_printf(sbio,"STLS\r\n");
 605                 BIO_read(sbio,sbuf,BUFSIZZ);
 606                 }
 607
 608         for (;;)
 609                 {
 610                 FD_ZERO(&readfds);
 611                 FD_ZERO(&writefds);
 612
 613                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
 614                         {
 615                         in_init=1;
 616                         tty_on=0;
 617                         }
 618                 else
 619                         {
 620                         tty_on=1;
 621                         if (in_init)
 622                                 {
 623                                 in_init=0;
 624                                 print_stuff(bio_c_out,con,full_log);
 625                                 if (full_log > 0) full_log--;
 626
 627                                 if (starttls_proto)
 628                                         {
 629                                         BIO_printf(bio_err,"%s",mbuf);
 630                                         /* We don't need to know any more */
 631                                         starttls_proto = 0;
 632                                         }
 633
 634                                 if (reconnect)
 635                                         {
 636                                         reconnect--;
 637                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
 638                                         SSL_shutdown(con);
 639                                         SSL_set_connect_state(con);
 640                                         SHUTDOWN(SSL_get_fd(con));
 641                                         goto re_start;
 642                                         }
 643                                 }
 644                         }
 645
 646                 ssl_pending = read_ssl && SSL_pending(con);
 647
 648                 if (!ssl_pending)
 649                         {
 650 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
 651                         if (tty_on)
 652                                 {
 653                                 if (read_tty)  FD_SET(fileno(stdin),&readfds);
 654                                 if (write_tty) FD_SET(fileno(stdout),&writefds);
 655                                 }
 656                         if (read_ssl)
 657                                 FD_SET(SSL_get_fd(con),&readfds);
 658                         if (write_ssl)
 659                                 FD_SET(SSL_get_fd(con),&writefds);
 660 #else
 661                         if(!tty_on || !write_tty) {
 662                                 if (read_ssl)
 663                                         FD_SET(SSL_get_fd(con),&readfds);
 664                                 if (write_ssl)
 665                                         FD_SET(SSL_get_fd(con),&writefds);
 666                         }
 667 #endif
 668 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
 669                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
 670
 671                         /* Note: under VMS with SOCKETSHR the second parameter
 672                          * is currently of type (int *) whereas under other
 673                          * systems it is (void *) if you don't have a cast it
 674                          * will choke the compiler: if you do have a cast then
 675                          * you can either go for (int *) or (void *).
 676                          */
 677 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
 678                         /* Under Windows/DOS we make the assumption that we can
 679                          * always write to the tty: therefore if we need to
 680                          * write to the tty we just fall through. Otherwise
 681                          * we timeout the select every second and see if there
 682                          * are any keypresses. Note: this is a hack, in a proper
 683                          * Windows application we wouldn't do this.
 684                          */
 685                         i=0;
 686                         if(!write_tty) {
 687                                 if(read_tty) {
 688                                         tv.tv_sec = 1;
 689                                         tv.tv_usec = 0;
 690                                         i=select(width,(void *)&readfds,(void *)&writefds,
 691                                                  NULL,&tv);
 692 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
 693                                         if(!i && (!_kbhit() || !read_tty) ) continue;
 694 #else
 695                                         if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
 696 #endif
 697                                 } else  i=select(width,(void *)&readfds,(void *)&writefds,
 698                                          NULL,NULL);
 699                         }
 700 #else
 701                         i=select(width,(void *)&readfds,(void *)&writefds,
 702                                  NULL,NULL);
 703 #endif
 704                         if ( i < 0)
 705                                 {
 706                                 BIO_printf(bio_err,"bad select %d\n",
 707                                 get_last_socket_error());
 708                                 goto shut;
 709                                 /* goto end; */
 710                                 }
 711                         }
 712
 713                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
 714                         {
 715                         k=SSL_write(con,&(cbuf[cbuf_off]),
 716                                 (unsigned int)cbuf_len);
 717                         switch (SSL_get_error(con,k))
 718                                 {
 719                         case SSL_ERROR_NONE:
 720                                 cbuf_off+=k;
 721                                 cbuf_len-=k;
 722                                 if (k <= 0) goto end;
 723                                 /* we have done a  write(con,NULL,0); */
 724                                 if (cbuf_len <= 0)
 725                                         {
 726                                         read_tty=1;
 727                                         write_ssl=0;
 728                                         }
 729                                 else /* if (cbuf_len > 0) */
 730                                         {
 731                                         read_tty=0;
 732                                         write_ssl=1;
 733                                         }
 734                                 break;
 735                         case SSL_ERROR_WANT_WRITE:
 736                                 BIO_printf(bio_c_out,"write W BLOCK\n");
 737                                 write_ssl=1;
 738                                 read_tty=0;
 739                                 break;
 740                         case SSL_ERROR_WANT_READ:
 741                                 BIO_printf(bio_c_out,"write R BLOCK\n");
 742                                 write_tty=0;
 743                                 read_ssl=1;
 744                                 write_ssl=0;
 745                                 break;
 746                         case SSL_ERROR_WANT_X509_LOOKUP:
 747                                 BIO_printf(bio_c_out,"write X BLOCK\n");
 748                                 break;
 749                         case SSL_ERROR_ZERO_RETURN:
 750                                 if (cbuf_len != 0)
 751                                         {
 752                                         BIO_printf(bio_c_out,"shutdown\n");
 753                                         goto shut;
 754                                         }
 755                                 else
 756                                         {
 757                                         read_tty=1;
 758                                         write_ssl=0;
 759                                         break;
 760                                         }
 761
 762                         case SSL_ERROR_SYSCALL:
 763                                 if ((k != 0) || (cbuf_len != 0))
 764                                         {
 765                                         BIO_printf(bio_err,"write:errno=%d\n",
 766                                                 get_last_socket_error());
 767                                         goto shut;
 768                                         }
 769                                 else
 770                                         {
 771                                         read_tty=1;
 772                                         write_ssl=0;
 773                                         }
 774                                 break;
 775                         case SSL_ERROR_SSL:
 776                                 ERR_print_errors(bio_err);
 777                                 goto shut;
 778                                 }
 779                         }
 780 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
 781                 /* Assume Windows/DOS can always write */
 782                 else if (!ssl_pending && write_tty)
 783 #else
 784                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
 785 #endif
 786                         {
 787 #ifdef CHARSET_EBCDIC
 788                         ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
 789 #endif
 790                         i=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len);
 791
 792                         if (i <= 0)
 793                                 {
 794                                 BIO_printf(bio_c_out,"DONE\n");
 795                                 goto shut;
 796                                 /* goto end; */
 797                                 }
 798
 799                         sbuf_len-=i;;
 800                         sbuf_off+=i;
 801                         if (sbuf_len <= 0)
 802                                 {
 803                                 read_ssl=1;
 804                                 write_tty=0;
 805                                 }
 806                         }
 807                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
 808                         {
 809 #ifdef RENEG
 810 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
 811 #endif
 812 #if 1
 813                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
 814 #else
 815 /* Demo for pending and peek :-) */
 816                         k=SSL_read(con,sbuf,16);
 817 { char zbuf[10240];
 818 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
 819 }
 820 #endif
 821
 822                         switch (SSL_get_error(con,k))
 823                                 {
 824                         case SSL_ERROR_NONE:
 825                                 if (k <= 0)
 826                                         goto end;
 827                                 sbuf_off=0;
 828                                 sbuf_len=k;
 829
 830                                 read_ssl=0;
 831                                 write_tty=1;
 832                                 break;
 833                         case SSL_ERROR_WANT_WRITE:
 834                                 BIO_printf(bio_c_out,"read W BLOCK\n");
 835                                 write_ssl=1;
 836                                 read_tty=0;
 837                                 break;
 838                         case SSL_ERROR_WANT_READ:
 839                                 BIO_printf(bio_c_out,"read R BLOCK\n");
 840                                 write_tty=0;
 841                                 read_ssl=1;
 842                                 if ((read_tty == 0) && (write_ssl == 0))
 843                                         write_ssl=1;
 844                                 break;
 845                         case SSL_ERROR_WANT_X509_LOOKUP:
 846                                 BIO_printf(bio_c_out,"read X BLOCK\n");
 847                                 break;
 848                         case SSL_ERROR_SYSCALL:
 849                                 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
 850                                 goto shut;
 851                         case SSL_ERROR_ZERO_RETURN:
 852                                 BIO_printf(bio_c_out,"closed\n");
 853                                 goto shut;
 854                         case SSL_ERROR_SSL:
 855                                 ERR_print_errors(bio_err);
 856                                 goto shut;
 857                                 /* break; */
 858                                 }
 859                         }
 860
 861 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
 862 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
 863                 else if (_kbhit())
 864 #else
 865                 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
 866 #endif
 867 #else
 868                 else if (FD_ISSET(fileno(stdin),&readfds))
 869 #endif
 870                         {
 871                         if (crlf)
 872                                 {
 873                                 int j, lf_num;
 874
 875                                 i=read(fileno(stdin),cbuf,BUFSIZZ/2);
 876                                 lf_num = 0;
 877                                 /* both loops are skipped when i <= 0 */
 878                                 for (j = 0; j < i; j++)
 879                                         if (cbuf[j] == '\n')
 880                                                 lf_num++;
 881                                 for (j = i-1; j >= 0; j--)
 882                                         {
 883                                         cbuf[j+lf_num] = cbuf[j];
 884                                         if (cbuf[j] == '\n')
 885                                                 {
 886                                                 lf_num--;
 887                                                 i++;
 888                                                 cbuf[j+lf_num] = '\r';
 889                                                 }
 890                                         }
 891                                 assert(lf_num == 0);
 892                                 }
 893                         else
 894                                 i=read(fileno(stdin),cbuf,BUFSIZZ);
 895
 896                         if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
 897                                 {
 898                                 BIO_printf(bio_err,"DONE\n");
 899                                 goto shut;
 900                                 }
 901
 902                         if ((!c_ign_eof) && (cbuf[0] == 'R'))
 903                                 {
 904                                 BIO_printf(bio_err,"RENEGOTIATING\n");
 905                                 SSL_renegotiate(con);
 906                                 cbuf_len=0;
 907                                 }
 908                         else
 909                                 {
 910                                 cbuf_len=i;
 911                                 cbuf_off=0;
 912 #ifdef CHARSET_EBCDIC
 913                                 ebcdic2ascii(cbuf, cbuf, i);
 914 #endif
 915                                 }
 916
 917                         write_ssl=1;
 918                         read_tty=0;
 919                         }
 920                 }
 921 shut:
 922         SSL_shutdown(con);
 923         SHUTDOWN(SSL_get_fd(con));
 924         ret=0;
 925 end:
 926         if(prexit) print_stuff(bio_c_out,con,1);
 927         if (con != NULL) SSL_free(con);
 928         if (con2 != NULL) SSL_free(con2);
 929         if (ctx != NULL) SSL_CTX_free(ctx);
 930         if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
 931         if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
 932         if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
 933         if (bio_c_out != NULL)
 934                 {
 935                 BIO_free(bio_c_out);
 936                 bio_c_out=NULL;
 937                 }
 938         apps_shutdown();
 939         OPENSSL_EXIT(ret);
 940         }
 941
 942
 943 static void print_stuff(BIO *bio, SSL *s, int full)
 944         {
 945         X509 *peer=NULL;
 946         char *p;
 947         static char *space="                ";
 948         char buf[BUFSIZ];
 949         STACK_OF(X509) *sk;
 950         STACK_OF(X509_NAME) *sk2;
 951         SSL_CIPHER *c;
 952         X509_NAME *xn;
 953         int j,i;
 954
 955         if (full)
 956                 {
 957                 int got_a_chain = 0;
 958
 959                 sk=SSL_get_peer_cert_chain(s);
 960                 if (sk != NULL)
 961                         {
 962                         got_a_chain = 1; /* we don't have it for SSL2 (yet) */
 963
 964                         BIO_printf(bio,"---\nCertificate chain\n");
 965                         for (i=0; i<sk_X509_num(sk); i++)
 966                                 {
 967                                 X509_NAME_oneline(X509_get_subject_name(
 968                                         sk_X509_value(sk,i)),buf,sizeof buf);
 969                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
 970                                 X509_NAME_oneline(X509_get_issuer_name(
 971                                         sk_X509_value(sk,i)),buf,sizeof buf);
 972                                 BIO_printf(bio,"   i:%s\n",buf);
 973                                 if (c_showcerts)
 974                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
 975                                 }
 976                         }
 977
 978                 BIO_printf(bio,"---\n");
 979                 peer=SSL_get_peer_certificate(s);
 980                 if (peer != NULL)
 981                         {
 982                         BIO_printf(bio,"Server certificate\n");
 983                         if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */
 984                                 PEM_write_bio_X509(bio,peer);
 985                         X509_NAME_oneline(X509_get_subject_name(peer),
 986                                 buf,sizeof buf);
 987                         BIO_printf(bio,"subject=%s\n",buf);
 988                         X509_NAME_oneline(X509_get_issuer_name(peer),
 989                                 buf,sizeof buf);
 990                         BIO_printf(bio,"issuer=%s\n",buf);
 991                         }
 992                 else
 993                         BIO_printf(bio,"no peer certificate available\n");
 994
 995                 sk2=SSL_get_client_CA_list(s);
 996                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
 997                         {
 998                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
 999                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
1000                                 {
1001                                 xn=sk_X509_NAME_value(sk2,i);
1002                                 X509_NAME_oneline(xn,buf,sizeof(buf));
1003                                 BIO_write(bio,buf,strlen(buf));
1004                                 BIO_write(bio,"\n",1);
1005                                 }
1006                         }
1007                 else
1008                         {
1009                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
1010                         }
1011                 p=SSL_get_shared_ciphers(s,buf,sizeof buf);
1012                 if (p != NULL)
1013                         {
1014                         /* This works only for SSL 2.  In later protocol
1015                          * versions, the client does not know what other
1016                          * ciphers (in addition to the one to be used
1017                          * in the current connection) the server supports. */
1018
1019                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
1020                         j=i=0;
1021                         while (*p)
1022                                 {
1023                                 if (*p == ':')
1024                                         {
1025                                         BIO_write(bio,space,15-j%25);
1026                                         i++;
1027                                         j=0;
1028                                         BIO_write(bio,((i%3)?" ":"\n"),1);
1029                                         }
1030                                 else
1031                                         {
1032                                         BIO_write(bio,p,1);
1033                                         j++;
1034                                         }
1035                                 p++;
1036                                 }
1037                         BIO_write(bio,"\n",1);
1038                         }
1039
1040                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
1041                         BIO_number_read(SSL_get_rbio(s)),
1042                         BIO_number_written(SSL_get_wbio(s)));
1043                 }
1044         BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
1045         c=SSL_get_current_cipher(s);
1046         BIO_printf(bio,"%s, Cipher is %s\n",
1047                 SSL_CIPHER_get_version(c),
1048                 SSL_CIPHER_get_name(c));
1049         if (peer != NULL) {
1050                 EVP_PKEY *pktmp;
1051                 pktmp = X509_get_pubkey(peer);
1052                 BIO_printf(bio,"Server public key is %d bit\n",
1053                                                          EVP_PKEY_bits(pktmp));
1054                 EVP_PKEY_free(pktmp);
1055         }
1056         SSL_SESSION_print(bio,SSL_get_session(s));
1057         BIO_printf(bio,"---\n");
1058         if (peer != NULL)
1059                 X509_free(peer);
1060         /* flush, or debugging output gets mixed with http response */
1061         BIO_flush(bio);
1062         }
1063