apps/sc.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 #include <stdio.h>
  60 #include <stdlib.h>
  61 #include <string.h>
  62 #define USE_SOCKETS
  63 #ifdef NO_STDIO
  64 #define APPS_WIN16
  65 #endif
  66 #include "apps.h"
  67 #include "x509.h"
  68 #include "ssl.h"
  69 #include "err.h"
  70 #include "pem.h"
  71 #include "s_apps.h"
  72
  73 #ifdef WINDOWS
  74 /* Most of the #if(n)def WINDOWS put in by Gerrit van Niekerk
  75    <gerritvn@osi.co.za> to support the keyboard under Windows.
  76    Tested using Win95, *should* work with NT and Win3.x
  77 */
  78 #include <conio.h>
  79 #endif
  80
  81 #undef PROG
  82 #define PROG    s_client_main
  83
  84 /*#define SSL_HOST_NAME "www.netscape.com" */
  85 /*#define SSL_HOST_NAME "193.118.187.102" */
  86 #define SSL_HOST_NAME   "localhost"
  87
  88 /*#define TEST_CERT "client.pem" */ /* no default cert. */
  89
  90 #undef BUFSIZZ
  91 #define BUFSIZZ 1024*8
  92
  93 extern int verify_depth;
  94 extern int verify_error;
  95
  96 #ifdef FIONBIO
  97 static int c_nbio=0;
  98 #endif
  99 static int c_Pause=0;
 100 static int c_debug=0;
 101
 102 #ifndef NOPROTO
 103 static void sc_usage(void);
 104 static void print_stuff(BIO *berr,SSL *con,int full);
 105 #else
 106 static void sc_usage();
 107 static void print_stuff();
 108 #endif
 109
 110 static BIO *bio_c_out=NULL;
 111 static int c_quiet=0;
 112
 113 static void sc_usage()
 114         {
 115         BIO_printf(bio_err,"usage: client args\n");
 116         BIO_printf(bio_err,"\n");
 117         BIO_printf(bio_err," -host host     - use -connect instead\n");
 118         BIO_printf(bio_err," -port port     - use -connect instead\n");
 119         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
 120
 121         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 122         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 123         BIO_printf(bio_err," -key arg      - Private key file to use, PEM format assumed, in cert file if\n");
 124         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 125         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 126         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 127         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 128         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 129         BIO_printf(bio_err," -debug        - extra output\n");
 130         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
 131         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
 132 #ifdef FIONBIO
 133         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 134 #endif
 135         BIO_printf(bio_err," -quiet        - no s_client output\n");
 136         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 137         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 138         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 139         BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 140         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 141         BIO_printf(bio_err," -cipher       - prefered cipher to use, use the 'ssleay ciphers'\n");
 142         BIO_printf(bio_err,"                 command to see what is available\n");
 143
 144         }
 145
 146 int MAIN(argc, argv)
 147 int argc;
 148 char **argv;
 149         {
 150         int off=0;
 151         SSL *con=NULL,*con2=NULL;
 152         int s,k,width,state=0;
 153         char *cbuf=NULL,*sbuf=NULL;
 154         int cbuf_len,cbuf_off;
 155         int sbuf_len,sbuf_off;
 156         fd_set readfds,writefds;
 157         short port=PORT;
 158         int full_log=1;
 159         char *host=SSL_HOST_NAME;
 160         char *cert_file=NULL,*key_file=NULL;
 161         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 162         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 163         int write_tty,read_tty,write_ssl,read_ssl,tty_on;
 164         SSL_CTX *ctx=NULL;
 165         int ret=1,in_init=1,i,nbio_test=0;
 166         SSL_METHOD *meth=NULL;
 167         BIO *sbio;
 168         /*static struct timeval timeout={10,0};*/
 169
 170 #if !defined(NO_SSL2) && !defined(NO_SSL3)
 171         meth=SSLv23_client_method();
 172 #elif !defined(NO_SSL3)
 173         meth=SSLv3_client_method();
 174 #elif !defined(NO_SSL2)
 175         meth=SSLv2_client_method();
 176 #endif
 177
 178         apps_startup();
 179         c_Pause=0;
 180         c_quiet=0;
 181         c_debug=0;
 182
 183         if (bio_err == NULL)
 184                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 185
 186         if (    ((cbuf=Malloc(BUFSIZZ)) == NULL) ||
 187                 ((sbuf=Malloc(BUFSIZZ)) == NULL))
 188                 {
 189                 BIO_printf(bio_err,"out of memory\n");
 190                 goto end;
 191                 }
 192
 193         verify_depth=0;
 194         verify_error=X509_V_OK;
 195 #ifdef FIONBIO
 196         c_nbio=0;
 197 #endif
 198 #ifdef WINDOWS
 199         c_nbio = 1;
 200 #endif
 201
 202         argc--;
 203         argv++;
 204         while (argc >= 1)
 205                 {
 206                 if      (strcmp(*argv,"-host") == 0)
 207                         {
 208                         if (--argc < 1) goto bad;
 209                         host= *(++argv);
 210                         }
 211                 else if (strcmp(*argv,"-port") == 0)
 212                         {
 213                         if (--argc < 1) goto bad;
 214                         port=atoi(*(++argv));
 215                         if (port == 0) goto bad;
 216                         }
 217                 else if (strcmp(*argv,"-connect") == 0)
 218                         {
 219                         if (--argc < 1) goto bad;
 220                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 221                                 goto bad;
 222                         }
 223                 else if (strcmp(*argv,"-verify") == 0)
 224                         {
 225                         verify=SSL_VERIFY_PEER;
 226                         if (--argc < 1) goto bad;
 227                         verify_depth=atoi(*(++argv));
 228                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 229                         }
 230                 else if (strcmp(*argv,"-cert") == 0)
 231                         {
 232                         if (--argc < 1) goto bad;
 233                         cert_file= *(++argv);
 234                         }
 235                 else if (strcmp(*argv,"-quiet") == 0)
 236                         c_quiet=1;
 237                 else if (strcmp(*argv,"-pause") == 0)
 238                         c_Pause=1;
 239                 else if (strcmp(*argv,"-debug") == 0)
 240                         c_debug=1;
 241                 else if (strcmp(*argv,"-nbio_test") == 0)
 242                         nbio_test=1;
 243                 else if (strcmp(*argv,"-state") == 0)
 244                         state=1;
 245 #ifndef NO_SSL2
 246                 else if (strcmp(*argv,"-ssl2") == 0)
 247                         meth=SSLv2_client_method();
 248 #endif
 249 #ifndef NO_SSL3
 250                 else if (strcmp(*argv,"-ssl3") == 0)
 251                         meth=SSLv3_client_method();
 252 #endif
 253 #ifndef NO_TLS1
 254                 else if (strcmp(*argv,"-tls1") == 0)
 255                         meth=TLSv1_client_method();
 256 #endif
 257                 else if (strcmp(*argv,"-bugs") == 0)
 258                         bugs=1;
 259                 else if (strcmp(*argv,"-key") == 0)
 260                         {
 261                         if (--argc < 1) goto bad;
 262                         key_file= *(++argv);
 263                         }
 264                 else if (strcmp(*argv,"-reconnect") == 0)
 265                         {
 266                         reconnect=5;
 267                         }
 268                 else if (strcmp(*argv,"-CApath") == 0)
 269                         {
 270                         if (--argc < 1) goto bad;
 271                         CApath= *(++argv);
 272                         }
 273                 else if (strcmp(*argv,"-CAfile") == 0)
 274                         {
 275                         if (--argc < 1) goto bad;
 276                         CAfile= *(++argv);
 277                         }
 278                 else if (strcmp(*argv,"-no_tls1") == 0)
 279                         off|=SSL_OP_NO_TLSv1;
 280                 else if (strcmp(*argv,"-no_ssl3") == 0)
 281                         off|=SSL_OP_NO_SSLv3;
 282                 else if (strcmp(*argv,"-no_ssl2") == 0)
 283                         off|=SSL_OP_NO_SSLv2;
 284                 else if (strcmp(*argv,"-cipher") == 0)
 285                         {
 286                         if (--argc < 1) goto bad;
 287                         cipher= *(++argv);
 288                         }
 289 #ifdef FIONBIO
 290                 else if (strcmp(*argv,"-nbio") == 0)
 291                         { c_nbio=1; }
 292 #endif
 293                 else
 294                         {
 295                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 296                         badop=1;
 297                         break;
 298                         }
 299                 argc--;
 300                 argv++;
 301                 }
 302         if (badop)
 303                 {
 304 bad:
 305                 sc_usage();
 306                 goto end;
 307                 }
 308
 309         if (bio_c_out == NULL)
 310                 {
 311                 if (c_quiet)
 312                         {
 313                         bio_c_out=BIO_new(BIO_s_null());
 314                         }
 315                 else
 316                         {
 317                         if (bio_c_out == NULL)
 318                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 319                         }
 320                 }
 321
 322         SSLeay_add_ssl_algorithms();
 323         ctx=SSL_CTX_new(meth);
 324         if (ctx == NULL)
 325                 {
 326                 ERR_print_errors(bio_err);
 327                 goto end;
 328                 }
 329
 330         if (bugs)
 331                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
 332         else
 333                 SSL_CTX_set_options(ctx,off);
 334
 335         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 336         if (cipher != NULL)
 337                 SSL_CTX_set_cipher_list(ctx,cipher);
 338 #if 0
 339         else
 340                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
 341 #endif
 342
 343         SSL_CTX_set_verify(ctx,verify,verify_callback);
 344         if (!set_cert_stuff(ctx,cert_file,key_file))
 345                 goto end;
 346
 347         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 348                 (!SSL_CTX_set_default_verify_paths(ctx)))
 349                 {
 350                 /* BIO_printf(bio_err,"error seting default verify locations\n"); */
 351                 ERR_print_errors(bio_err);
 352                 /* goto end; */
 353                 }
 354
 355         SSL_load_error_strings();
 356
 357         con=(SSL *)SSL_new(ctx);
 358 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
 359
 360 re_start:
 361
 362         if (init_client(&s,host,port) == 0)
 363                 {
 364                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
 365                 SHUTDOWN(s);
 366                 goto end;
 367                 }
 368         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
 369
 370 #ifdef FIONBIO
 371         if (c_nbio)
 372                 {
 373                 unsigned long l=1;
 374                 BIO_printf(bio_c_out,"turning on non blocking io\n");
 375                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
 376                         {
 377                         ERR_print_errors(bio_err);
 378                         goto end;
 379                         }
 380                 }
 381 #endif
 382         if (c_Pause & 0x01) con->debug=1;
 383         sbio=BIO_new_socket(s,BIO_NOCLOSE);
 384
 385         if (nbio_test)
 386                 {
 387                 BIO *test;
 388
 389                 test=BIO_new(BIO_f_nbio_test());
 390                 sbio=BIO_push(test,sbio);
 391                 }
 392
 393         if (c_debug)
 394                 {
 395                 con->debug=1;
 396                 BIO_set_callback(sbio,bio_dump_cb);
 397                 BIO_set_callback_arg(sbio,bio_c_out);
 398                 }
 399
 400         SSL_set_bio(con,sbio,sbio);
 401         SSL_set_connect_state(con);
 402
 403         /* ok, lets connect */
 404         width=SSL_get_fd(con)+1;
 405
 406         read_tty=1;
 407         write_tty=0;
 408         tty_on=0;
 409         read_ssl=1;
 410         write_ssl=1;
 411
 412         cbuf_len=0;
 413         cbuf_off=0;
 414         sbuf_len=0;
 415         sbuf_off=0;
 416
 417         for (;;)
 418                 {
 419                 FD_ZERO(&readfds);
 420                 FD_ZERO(&writefds);
 421
 422                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
 423                         {
 424                         in_init=1;
 425                         tty_on=0;
 426                         }
 427                 else
 428                         {
 429                         tty_on=1;
 430                         if (in_init)
 431                                 {
 432                                 in_init=0;
 433                                 print_stuff(bio_c_out,con,full_log);
 434                                 if (full_log > 0) full_log--;
 435
 436                                 if (reconnect)
 437                                         {
 438                                         reconnect--;
 439                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
 440                                         SSL_shutdown(con);
 441                                         SSL_set_connect_state(con);
 442                                         SHUTDOWN(SSL_get_fd(con));
 443                                         goto re_start;
 444                                         }
 445                                 }
 446                         }
 447
 448 #ifndef WINDOWS
 449                 if (tty_on)
 450                         {
 451                         if (read_tty)  FD_SET(fileno(stdin),&readfds);
 452                         if (write_tty) FD_SET(fileno(stdout),&writefds);
 453                         }
 454 #endif
 455                 if (read_ssl)
 456                         FD_SET(SSL_get_fd(con),&readfds);
 457                 if (write_ssl)
 458                         FD_SET(SSL_get_fd(con),&writefds);
 459
 460 /*              printf("mode tty(%d %d%d) ssl(%d%d)\n",
 461                         tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
 462
 463 #ifndef WINDOWS
 464                 i=select(width,&readfds,&writefds,NULL,NULL);
 465                 if ( i < 0)
 466                         {
 467                         BIO_printf(bio_err,"bad select %d\n",
 468                                 get_last_socket_error());
 469                         goto shut;
 470                         /* goto end; */
 471                         }
 472
 473                 if (FD_ISSET(SSL_get_fd(con),&writefds))
 474 #else
 475                 if (write_ssl)
 476 #endif
 477                         {
 478                         k=SSL_write(con,&(cbuf[cbuf_off]),
 479                                 (unsigned int)cbuf_len);
 480                         switch (SSL_get_error(con,k))
 481                                 {
 482                         case SSL_ERROR_NONE:
 483                                 cbuf_off+=k;
 484                                 cbuf_len-=k;
 485                                 if (k <= 0) goto end;
 486                                 /* we have done a  write(con,NULL,0); */
 487                                 if (cbuf_len <= 0)
 488                                         {
 489                                         read_tty=1;
 490                                         write_ssl=0;
 491                                         }
 492                                 else /* if (cbuf_len > 0) */
 493                                         {
 494                                         read_tty=0;
 495                                         write_ssl=1;
 496                                         }
 497                                 break;
 498                         case SSL_ERROR_WANT_WRITE:
 499 #ifndef WINDOWS
 500                                 BIO_printf(bio_c_out,"write W BLOCK\n");
 501 #endif
 502                                 write_ssl=1;
 503                                 read_tty=0;
 504                                 break;
 505                         case SSL_ERROR_WANT_READ:
 506 #ifndef WINDOWS
 507                                 BIO_printf(bio_c_out,"write R BLOCK\n");
 508 #endif
 509                                 write_tty=0;
 510                                 read_ssl=1;
 511                                 write_ssl=0;
 512                                 break;
 513                         case SSL_ERROR_WANT_X509_LOOKUP:
 514                                 BIO_printf(bio_c_out,"write X BLOCK\n");
 515                                 break;
 516                         case SSL_ERROR_ZERO_RETURN:
 517                                 if (cbuf_len != 0)
 518                                         {
 519                                         BIO_printf(bio_c_out,"shutdown\n");
 520                                         goto shut;
 521                                         }
 522                                 else
 523                                         {
 524                                         read_tty=1;
 525                                         write_ssl=0;
 526                                         break;
 527                                         }
 528
 529                         case SSL_ERROR_SYSCALL:
 530                                 if ((k != 0) || (cbuf_len != 0))
 531                                         {
 532                                         BIO_printf(bio_err,"write:errno=%d\n",
 533                                                 get_last_socket_error());
 534                                         goto shut;
 535                                         }
 536                                 else
 537                                         {
 538                                         read_tty=1;
 539                                         write_ssl=0;
 540                                         }
 541                                 break;
 542                         case SSL_ERROR_SSL:
 543                                 ERR_print_errors(bio_err);
 544                                 goto shut;
 545                                 }
 546                         }
 547 #ifndef WINDOWS
 548                 else if (FD_ISSET(fileno(stdout),&writefds))
 549 #else
 550                 else if (tty_on && write_tty)
 551 #endif
 552                         {
 553                         i=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len);
 554
 555                         if (i <= 0)
 556                                 {
 557                                 BIO_printf(bio_c_out,"DONE\n");
 558                                 goto shut;
 559                                 /* goto end; */
 560                                 }
 561
 562                         sbuf_len-=i;;
 563                         sbuf_off+=i;
 564                         if (sbuf_len <= 0)
 565                                 {
 566                                 read_ssl=1;
 567                                 write_tty=0;
 568                                 }
 569                         }
 570 #ifndef WINDOWS
 571                 else if (FD_ISSET(SSL_get_fd(con),&readfds))
 572 #else
 573                 if (read_ssl)
 574 #endif
 575                         {
 576 #ifdef RENEG
 577 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
 578 #endif
 579                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
 580
 581                         switch (SSL_get_error(con,k))
 582                                 {
 583                         case SSL_ERROR_NONE:
 584                                 if (k <= 0)
 585                                         goto end;
 586                                 sbuf_off=0;
 587                                 sbuf_len=k;
 588
 589                                 read_ssl=0;
 590                                 write_tty=1;
 591                                 break;
 592                         case SSL_ERROR_WANT_WRITE:
 593 #ifndef WINDOWS
 594                                 BIO_printf(bio_c_out,"read W BLOCK\n");
 595 #endif
 596                                 write_ssl=1;
 597                                 read_tty=0;
 598                                 break;
 599                         case SSL_ERROR_WANT_READ:
 600 #ifndef WINDOWS
 601                                 BIO_printf(bio_c_out,"read R BLOCK\n");
 602 #endif
 603                                 write_tty=0;
 604                                 read_ssl=1;
 605                                 if ((read_tty == 0) && (write_ssl == 0))
 606                                         write_ssl=1;
 607                                 break;
 608                         case SSL_ERROR_WANT_X509_LOOKUP:
 609                                 BIO_printf(bio_c_out,"read X BLOCK\n");
 610                                 break;
 611                         case SSL_ERROR_SYSCALL:
 612                                 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
 613                                 goto shut;
 614                         case SSL_ERROR_ZERO_RETURN:
 615                                 BIO_printf(bio_c_out,"closed\n");
 616                                 goto shut;
 617                         case SSL_ERROR_SSL:
 618                                 ERR_print_errors(bio_err);
 619                                 goto shut;
 620                                 break;
 621                                 }
 622                         }
 623
 624 #ifndef WINDOWS
 625                 else if (FD_ISSET(fileno(stdin),&readfds))
 626                         {
 627                         i=read(fileno(stdin),cbuf,BUFSIZZ);
 628 #else
 629                 if (tty_on && read_tty && _kbhit())
 630                         {
 631                         i = 1;
 632                         cbuf[0] = _getch();
 633 #endif
 634
 635                         if ((!c_quiet) && ((i <= 0) || (cbuf[0] == 'Q')))
 636                                 {
 637                                 BIO_printf(bio_err,"DONE\n");
 638                                 goto shut;
 639                                 }
 640
 641                         if ((!c_quiet) && (cbuf[0] == 'R'))
 642                                 {
 643                                 SSL_renegotiate(con);
 644                                 read_tty=0;
 645                                 write_ssl=1;
 646                                 }
 647                         else
 648                                 {
 649                                 cbuf_len=i;
 650                                 cbuf_off=0;
 651                                 }
 652
 653                         read_tty=0;
 654                         write_ssl=1;
 655                         }
 656                 }
 657 shut:
 658         SSL_shutdown(con);
 659         SHUTDOWN(SSL_get_fd(con));
 660         ret=0;
 661 end:
 662         if (con != NULL) SSL_free(con);
 663         if (con2 != NULL) SSL_free(con2);
 664         if (ctx != NULL) SSL_CTX_free(ctx);
 665         if (cbuf != NULL) { memset(cbuf,0,BUFSIZZ); Free(cbuf); }
 666         if (sbuf != NULL) { memset(sbuf,0,BUFSIZZ); Free(sbuf); }
 667         if (bio_c_out != NULL)
 668                 {
 669                 BIO_free(bio_c_out);
 670                 bio_c_out=NULL;
 671                 }
 672         EXIT(ret);
 673         }
 674
 675
 676 static void print_stuff(bio,s,full)
 677 BIO *bio;
 678 SSL *s;
 679 int full;
 680         {
 681         X509 *peer=NULL;
 682         char *p;
 683         static char *space="                ";
 684         char buf[BUFSIZ];
 685         STACK *sk;
 686         SSL_CIPHER *c;
 687         X509_NAME *xn;
 688         int j,i;
 689
 690         if (full)
 691                 {
 692                 sk=SSL_get_peer_cert_chain(s);
 693                 if (sk != NULL)
 694                         {
 695                         BIO_printf(bio,"---\nCertificate chain\n");
 696                         for (i=0; i<sk_num(sk); i++)
 697                                 {
 698                                 X509_NAME_oneline(X509_get_subject_name((X509 *)
 699                                         sk_value(sk,i)),buf,BUFSIZ);
 700                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
 701                                 X509_NAME_oneline(X509_get_issuer_name((X509 *)
 702                                         sk_value(sk,i)),buf,BUFSIZ);
 703                                 BIO_printf(bio,"   i:%s\n",buf);
 704                                 }
 705                         }
 706
 707                 BIO_printf(bio,"---\n");
 708                 peer=SSL_get_peer_certificate(s);
 709                 if (peer != NULL)
 710                         {
 711                         BIO_printf(bio,"Server certificate\n");
 712                         PEM_write_bio_X509(bio,peer);
 713                         X509_NAME_oneline(X509_get_subject_name(peer),
 714                                 buf,BUFSIZ);
 715                         BIO_printf(bio,"subject=%s\n",buf);
 716                         X509_NAME_oneline(X509_get_issuer_name(peer),
 717                                 buf,BUFSIZ);
 718                         BIO_printf(bio,"issuer=%s\n",buf);
 719                         }
 720                 else
 721                         BIO_printf(bio,"no peer certificate available\n");
 722
 723                 sk=SSL_get_client_CA_list(s);
 724                 if ((sk != NULL) && (sk_num(sk) > 0))
 725                         {
 726                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
 727                         for (i=0; i<sk_num(sk); i++)
 728                                 {
 729                                 xn=(X509_NAME *)sk_value(sk,i);
 730                                 X509_NAME_oneline(xn,buf,sizeof(buf));
 731                                 BIO_write(bio,buf,strlen(buf));
 732                                 BIO_write(bio,"\n",1);
 733                                 }
 734                         }
 735                 else
 736                         {
 737                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
 738                         }
 739                 p=SSL_get_shared_ciphers(s,buf,BUFSIZ);
 740                 if (p != NULL)
 741                         {
 742                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
 743                         j=i=0;
 744                         while (*p)
 745                                 {
 746                                 if (*p == ':')
 747                                         {
 748                                         BIO_write(bio,space,15-j%25);
 749                                         i++;
 750                                         j=0;
 751                                         BIO_write(bio,((i%3)?" ":"\n"),1);
 752                                         }
 753                                 else
 754                                         {
 755                                         BIO_write(bio,p,1);
 756                                         j++;
 757                                         }
 758                                 p++;
 759                                 }
 760                         BIO_write(bio,"\n",1);
 761                         }
 762
 763                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
 764                         BIO_number_read(SSL_get_rbio(s)),
 765                         BIO_number_written(SSL_get_wbio(s)));
 766                 }
 767         BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
 768         c=SSL_get_current_cipher(s);
 769         BIO_printf(bio,"%s, Cipher is %s\n",
 770                 SSL_CIPHER_get_version(c),
 771                 SSL_CIPHER_get_name(c));
 772         if (peer != NULL)
 773                 BIO_printf(bio,"Server public key is %d bit\n",
 774                         EVP_PKEY_bits(X509_get_pubkey(peer)));
 775         SSL_SESSION_print(bio,SSL_get_session(s));
 776         BIO_printf(bio,"---\n");
 777         if (peer != NULL)
 778                 X509_free(peer);
 779         }
 780