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