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 <openssl/x509.h>
  68 #include <openssl/ssl.h>
  69 #include <openssl/err.h>
  70 #include <openssl/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(void)
 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 'openssl ciphers'\n");
 142         BIO_printf(bio_err,"                 command to see what is available\n");
 143
 144         }
 145
 146 int MAIN(int argc, char **argv)
 147         {
 148         int off=0;
 149         SSL *con=NULL,*con2=NULL;
 150         int s,k,width,state=0;
 151         char *cbuf=NULL,*sbuf=NULL;
 152         int cbuf_len,cbuf_off;
 153         int sbuf_len,sbuf_off;
 154         fd_set readfds,writefds;
 155         short port=PORT;
 156         int full_log=1;
 157         char *host=SSL_HOST_NAME;
 158         char *cert_file=NULL,*key_file=NULL;
 159         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 160         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 161         int write_tty,read_tty,write_ssl,read_ssl,tty_on;
 162         SSL_CTX *ctx=NULL;
 163         int ret=1,in_init=1,i,nbio_test=0;
 164         SSL_METHOD *meth=NULL;
 165         BIO *sbio;
 166         /*static struct timeval timeout={10,0};*/
 167
 168 #if !defined(NO_SSL2) && !defined(NO_SSL3)
 169         meth=SSLv23_client_method();
 170 #elif !defined(NO_SSL3)
 171         meth=SSLv3_client_method();
 172 #elif !defined(NO_SSL2)
 173         meth=SSLv2_client_method();
 174 #endif
 175
 176         apps_startup();
 177         c_Pause=0;
 178         c_quiet=0;
 179         c_debug=0;
 180
 181         if (bio_err == NULL)
 182                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 183
 184         if (    ((cbuf=Malloc(BUFSIZZ)) == NULL) ||
 185                 ((sbuf=Malloc(BUFSIZZ)) == NULL))
 186                 {
 187                 BIO_printf(bio_err,"out of memory\n");
 188                 goto end;
 189                 }
 190
 191         verify_depth=0;
 192         verify_error=X509_V_OK;
 193 #ifdef FIONBIO
 194         c_nbio=0;
 195 #endif
 196 #ifdef WINDOWS
 197         c_nbio = 1;
 198 #endif
 199
 200         argc--;
 201         argv++;
 202         while (argc >= 1)
 203                 {
 204                 if      (strcmp(*argv,"-host") == 0)
 205                         {
 206                         if (--argc < 1) goto bad;
 207                         host= *(++argv);
 208                         }
 209                 else if (strcmp(*argv,"-port") == 0)
 210                         {
 211                         if (--argc < 1) goto bad;
 212                         port=atoi(*(++argv));
 213                         if (port == 0) goto bad;
 214                         }
 215                 else if (strcmp(*argv,"-connect") == 0)
 216                         {
 217                         if (--argc < 1) goto bad;
 218                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 219                                 goto bad;
 220                         }
 221                 else if (strcmp(*argv,"-verify") == 0)
 222                         {
 223                         verify=SSL_VERIFY_PEER;
 224                         if (--argc < 1) goto bad;
 225                         verify_depth=atoi(*(++argv));
 226                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 227                         }
 228                 else if (strcmp(*argv,"-cert") == 0)
 229                         {
 230                         if (--argc < 1) goto bad;
 231                         cert_file= *(++argv);
 232                         }
 233                 else if (strcmp(*argv,"-quiet") == 0)
 234                         c_quiet=1;
 235                 else if (strcmp(*argv,"-pause") == 0)
 236                         c_Pause=1;
 237                 else if (strcmp(*argv,"-debug") == 0)
 238                         c_debug=1;
 239                 else if (strcmp(*argv,"-nbio_test") == 0)
 240                         nbio_test=1;
 241                 else if (strcmp(*argv,"-state") == 0)
 242                         state=1;
 243 #ifndef NO_SSL2
 244                 else if (strcmp(*argv,"-ssl2") == 0)
 245                         meth=SSLv2_client_method();
 246 #endif
 247 #ifndef NO_SSL3
 248                 else if (strcmp(*argv,"-ssl3") == 0)
 249                         meth=SSLv3_client_method();
 250 #endif
 251 #ifndef NO_TLS1
 252                 else if (strcmp(*argv,"-tls1") == 0)
 253                         meth=TLSv1_client_method();
 254 #endif
 255                 else if (strcmp(*argv,"-bugs") == 0)
 256                         bugs=1;
 257                 else if (strcmp(*argv,"-key") == 0)
 258                         {
 259                         if (--argc < 1) goto bad;
 260                         key_file= *(++argv);
 261                         }
 262                 else if (strcmp(*argv,"-reconnect") == 0)
 263                         {
 264                         reconnect=5;
 265                         }
 266                 else if (strcmp(*argv,"-CApath") == 0)
 267                         {
 268                         if (--argc < 1) goto bad;
 269                         CApath= *(++argv);
 270                         }
 271                 else if (strcmp(*argv,"-CAfile") == 0)
 272                         {
 273                         if (--argc < 1) goto bad;
 274                         CAfile= *(++argv);
 275                         }
 276                 else if (strcmp(*argv,"-no_tls1") == 0)
 277                         off|=SSL_OP_NO_TLSv1;
 278                 else if (strcmp(*argv,"-no_ssl3") == 0)
 279                         off|=SSL_OP_NO_SSLv3;
 280                 else if (strcmp(*argv,"-no_ssl2") == 0)
 281                         off|=SSL_OP_NO_SSLv2;
 282                 else if (strcmp(*argv,"-cipher") == 0)
 283                         {
 284                         if (--argc < 1) goto bad;
 285                         cipher= *(++argv);
 286                         }
 287 #ifdef FIONBIO
 288                 else if (strcmp(*argv,"-nbio") == 0)
 289                         { c_nbio=1; }
 290 #endif
 291                 else
 292                         {
 293                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 294                         badop=1;
 295                         break;
 296                         }
 297                 argc--;
 298                 argv++;
 299                 }
 300         if (badop)
 301                 {
 302 bad:
 303                 sc_usage();
 304                 goto end;
 305                 }
 306
 307         if (bio_c_out == NULL)
 308                 {
 309                 if (c_quiet)
 310                         {
 311                         bio_c_out=BIO_new(BIO_s_null());
 312                         }
 313                 else
 314                         {
 315                         if (bio_c_out == NULL)
 316                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 317                         }
 318                 }
 319
 320         SSLeay_add_ssl_algorithms();
 321         ctx=SSL_CTX_new(meth);
 322         if (ctx == NULL)
 323                 {
 324                 ERR_print_errors(bio_err);
 325                 goto end;
 326                 }
 327
 328         if (bugs)
 329                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
 330         else
 331                 SSL_CTX_set_options(ctx,off);
 332
 333         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 334         if (cipher != NULL)
 335                 SSL_CTX_set_cipher_list(ctx,cipher);
 336 #if 0
 337         else
 338                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
 339 #endif
 340
 341         SSL_CTX_set_verify(ctx,verify,verify_callback);
 342         if (!set_cert_stuff(ctx,cert_file,key_file))
 343                 goto end;
 344
 345         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 346                 (!SSL_CTX_set_default_verify_paths(ctx)))
 347                 {
 348                 /* BIO_printf(bio_err,"error seting default verify locations\n"); */
 349                 ERR_print_errors(bio_err);
 350                 /* goto end; */
 351                 }
 352
 353         SSL_load_error_strings();
 354
 355         con=(SSL *)SSL_new(ctx);
 356 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
 357
 358 re_start:
 359
 360         if (init_client(&s,host,port) == 0)
 361                 {
 362                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
 363                 SHUTDOWN(s);
 364                 goto end;
 365                 }
 366         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
 367
 368 #ifdef FIONBIO
 369         if (c_nbio)
 370                 {
 371                 unsigned long l=1;
 372                 BIO_printf(bio_c_out,"turning on non blocking io\n");
 373                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
 374                         {
 375                         ERR_print_errors(bio_err);
 376                         goto end;
 377                         }
 378                 }
 379 #endif
 380         if (c_Pause & 0x01) con->debug=1;
 381         sbio=BIO_new_socket(s,BIO_NOCLOSE);
 382
 383         if (nbio_test)
 384                 {
 385                 BIO *test;
 386
 387                 test=BIO_new(BIO_f_nbio_test());
 388                 sbio=BIO_push(test,sbio);
 389                 }
 390
 391         if (c_debug)
 392                 {
 393                 con->debug=1;
 394                 BIO_set_callback(sbio,bio_dump_cb);
 395                 BIO_set_callback_arg(sbio,bio_c_out);
 396                 }
 397
 398         SSL_set_bio(con,sbio,sbio);
 399         SSL_set_connect_state(con);
 400
 401         /* ok, lets connect */
 402         width=SSL_get_fd(con)+1;
 403
 404         read_tty=1;
 405         write_tty=0;
 406         tty_on=0;
 407         read_ssl=1;
 408         write_ssl=1;
 409
 410         cbuf_len=0;
 411         cbuf_off=0;
 412         sbuf_len=0;
 413         sbuf_off=0;
 414
 415         for (;;)
 416                 {
 417                 FD_ZERO(&readfds);
 418                 FD_ZERO(&writefds);
 419
 420                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
 421                         {
 422                         in_init=1;
 423                         tty_on=0;
 424                         }
 425                 else
 426                         {
 427                         tty_on=1;
 428                         if (in_init)
 429                                 {
 430                                 in_init=0;
 431                                 print_stuff(bio_c_out,con,full_log);
 432                                 if (full_log > 0) full_log--;
 433
 434                                 if (reconnect)
 435                                         {
 436                                         reconnect--;
 437                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
 438                                         SSL_shutdown(con);
 439                                         SSL_set_connect_state(con);
 440                                         SHUTDOWN(SSL_get_fd(con));
 441                                         goto re_start;
 442                                         }
 443                                 }
 444                         }
 445
 446 #ifndef WINDOWS
 447                 if (tty_on)
 448                         {
 449                         if (read_tty)  FD_SET(fileno(stdin),&readfds);
 450                         if (write_tty) FD_SET(fileno(stdout),&writefds);
 451                         }
 452 #endif
 453                 if (read_ssl)
 454                         FD_SET(SSL_get_fd(con),&readfds);
 455                 if (write_ssl)
 456                         FD_SET(SSL_get_fd(con),&writefds);
 457
 458 /*              printf("mode tty(%d %d%d) ssl(%d%d)\n",
 459                         tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
 460
 461 #ifndef WINDOWS
 462                 i=select(width,&readfds,&writefds,NULL,NULL);
 463                 if ( i < 0)
 464                         {
 465                         BIO_printf(bio_err,"bad select %d\n",
 466                                 get_last_socket_error());
 467                         goto shut;
 468                         /* goto end; */
 469                         }
 470
 471                 if (FD_ISSET(SSL_get_fd(con),&writefds))
 472 #else
 473                 if (write_ssl)
 474 #endif
 475                         {
 476                         k=SSL_write(con,&(cbuf[cbuf_off]),
 477                                 (unsigned int)cbuf_len);
 478                         switch (SSL_get_error(con,k))
 479                                 {
 480                         case SSL_ERROR_NONE:
 481                                 cbuf_off+=k;
 482                                 cbuf_len-=k;
 483                                 if (k <= 0) goto end;
 484                                 /* we have done a  write(con,NULL,0); */
 485                                 if (cbuf_len <= 0)
 486                                         {
 487                                         read_tty=1;
 488                                         write_ssl=0;
 489                                         }
 490                                 else /* if (cbuf_len > 0) */
 491                                         {
 492                                         read_tty=0;
 493                                         write_ssl=1;
 494                                         }
 495                                 break;
 496                         case SSL_ERROR_WANT_WRITE:
 497 #ifndef WINDOWS
 498                                 BIO_printf(bio_c_out,"write W BLOCK\n");
 499 #endif
 500                                 write_ssl=1;
 501                                 read_tty=0;
 502                                 break;
 503                         case SSL_ERROR_WANT_READ:
 504 #ifndef WINDOWS
 505                                 BIO_printf(bio_c_out,"write R BLOCK\n");
 506 #endif
 507                                 write_tty=0;
 508                                 read_ssl=1;
 509                                 write_ssl=0;
 510                                 break;
 511                         case SSL_ERROR_WANT_X509_LOOKUP:
 512                                 BIO_printf(bio_c_out,"write X BLOCK\n");
 513                                 break;
 514                         case SSL_ERROR_ZERO_RETURN:
 515                                 if (cbuf_len != 0)
 516                                         {
 517                                         BIO_printf(bio_c_out,"shutdown\n");
 518                                         goto shut;
 519                                         }
 520                                 else
 521                                         {
 522                                         read_tty=1;
 523                                         write_ssl=0;
 524                                         break;
 525                                         }
 526
 527                         case SSL_ERROR_SYSCALL:
 528                                 if ((k != 0) || (cbuf_len != 0))
 529                                         {
 530                                         BIO_printf(bio_err,"write:errno=%d\n",
 531                                                 get_last_socket_error());
 532                                         goto shut;
 533                                         }
 534                                 else
 535                                         {
 536                                         read_tty=1;
 537                                         write_ssl=0;
 538                                         }
 539                                 break;
 540                         case SSL_ERROR_SSL:
 541                                 ERR_print_errors(bio_err);
 542                                 goto shut;
 543                                 }
 544                         }
 545 #ifndef WINDOWS
 546                 else if (FD_ISSET(fileno(stdout),&writefds))
 547 #else
 548                 else if (tty_on && write_tty)
 549 #endif
 550                         {
 551                         i=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len);
 552
 553                         if (i <= 0)
 554                                 {
 555                                 BIO_printf(bio_c_out,"DONE\n");
 556                                 goto shut;
 557                                 /* goto end; */
 558                                 }
 559
 560                         sbuf_len-=i;;
 561                         sbuf_off+=i;
 562                         if (sbuf_len <= 0)
 563                                 {
 564                                 read_ssl=1;
 565                                 write_tty=0;
 566                                 }
 567                         }
 568 #ifndef WINDOWS
 569                 else if (FD_ISSET(SSL_get_fd(con),&readfds))
 570 #else
 571                 if (read_ssl)
 572 #endif
 573                         {
 574 #ifdef RENEG
 575 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
 576 #endif
 577                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
 578
 579                         switch (SSL_get_error(con,k))
 580                                 {
 581                         case SSL_ERROR_NONE:
 582                                 if (k <= 0)
 583                                         goto end;
 584                                 sbuf_off=0;
 585                                 sbuf_len=k;
 586
 587                                 read_ssl=0;
 588                                 write_tty=1;
 589                                 break;
 590                         case SSL_ERROR_WANT_WRITE:
 591 #ifndef WINDOWS
 592                                 BIO_printf(bio_c_out,"read W BLOCK\n");
 593 #endif
 594                                 write_ssl=1;
 595                                 read_tty=0;
 596                                 break;
 597                         case SSL_ERROR_WANT_READ:
 598 #ifndef WINDOWS
 599                                 BIO_printf(bio_c_out,"read R BLOCK\n");
 600 #endif
 601                                 write_tty=0;
 602                                 read_ssl=1;
 603                                 if ((read_tty == 0) && (write_ssl == 0))
 604                                         write_ssl=1;
 605                                 break;
 606                         case SSL_ERROR_WANT_X509_LOOKUP:
 607                                 BIO_printf(bio_c_out,"read X BLOCK\n");
 608                                 break;
 609                         case SSL_ERROR_SYSCALL:
 610                                 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
 611                                 goto shut;
 612                         case SSL_ERROR_ZERO_RETURN:
 613                                 BIO_printf(bio_c_out,"closed\n");
 614                                 goto shut;
 615                         case SSL_ERROR_SSL:
 616                                 ERR_print_errors(bio_err);
 617                                 goto shut;
 618                                 break;
 619                                 }
 620                         }
 621
 622 #ifndef WINDOWS
 623                 else if (FD_ISSET(fileno(stdin),&readfds))
 624                         {
 625                         i=read(fileno(stdin),cbuf,BUFSIZZ);
 626 #else
 627                 if (tty_on && read_tty && _kbhit())
 628                         {
 629                         i = 1;
 630                         cbuf[0] = _getch();
 631 #endif
 632
 633                         if ((!c_quiet) && ((i <= 0) || (cbuf[0] == 'Q')))
 634                                 {
 635                                 BIO_printf(bio_err,"DONE\n");
 636                                 goto shut;
 637                                 }
 638
 639                         if ((!c_quiet) && (cbuf[0] == 'R'))
 640                                 {
 641                                 SSL_renegotiate(con);
 642                                 read_tty=0;
 643                                 write_ssl=1;
 644                                 }
 645                         else
 646                                 {
 647                                 cbuf_len=i;
 648                                 cbuf_off=0;
 649                                 }
 650
 651                         read_tty=0;
 652                         write_ssl=1;
 653                         }
 654                 }
 655 shut:
 656         SSL_shutdown(con);
 657         SHUTDOWN(SSL_get_fd(con));
 658         ret=0;
 659 end:
 660         if (con != NULL) SSL_free(con);
 661         if (con2 != NULL) SSL_free(con2);
 662         if (ctx != NULL) SSL_CTX_free(ctx);
 663         if (cbuf != NULL) { memset(cbuf,0,BUFSIZZ); Free(cbuf); }
 664         if (sbuf != NULL) { memset(sbuf,0,BUFSIZZ); Free(sbuf); }
 665         if (bio_c_out != NULL)
 666                 {
 667                 BIO_free(bio_c_out);
 668                 bio_c_out=NULL;
 669                 }
 670         EXIT(ret);
 671         }
 672
 673
 674 static void print_stuff(bio,s,full)
 675 BIO *bio;
 676 SSL *s;
 677 int full;
 678         {
 679         X509 *peer=NULL;
 680         char *p;
 681         static char *space="                ";
 682         char buf[BUFSIZ];
 683         STACK *sk;
 684         SSL_CIPHER *c;
 685         X509_NAME *xn;
 686         int j,i;
 687
 688         if (full)
 689                 {
 690                 sk=SSL_get_peer_cert_chain(s);
 691                 if (sk != NULL)
 692                         {
 693                         BIO_printf(bio,"---\nCertificate chain\n");
 694                         for (i=0; i<sk_num(sk); i++)
 695                                 {
 696                                 X509_NAME_oneline(X509_get_subject_name((X509 *)
 697                                         sk_value(sk,i)),buf,BUFSIZ);
 698                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
 699                                 X509_NAME_oneline(X509_get_issuer_name((X509 *)
 700                                         sk_value(sk,i)),buf,BUFSIZ);
 701                                 BIO_printf(bio,"   i:%s\n",buf);
 702                                 }
 703                         }
 704
 705                 BIO_printf(bio,"---\n");
 706                 peer=SSL_get_peer_certificate(s);
 707                 if (peer != NULL)
 708                         {
 709                         BIO_printf(bio,"Server certificate\n");
 710                         PEM_write_bio_X509(bio,peer);
 711                         X509_NAME_oneline(X509_get_subject_name(peer),
 712                                 buf,BUFSIZ);
 713                         BIO_printf(bio,"subject=%s\n",buf);
 714                         X509_NAME_oneline(X509_get_issuer_name(peer),
 715                                 buf,BUFSIZ);
 716                         BIO_printf(bio,"issuer=%s\n",buf);
 717                         }
 718                 else
 719                         BIO_printf(bio,"no peer certificate available\n");
 720
 721                 sk=SSL_get_client_CA_list(s);
 722                 if ((sk != NULL) && (sk_num(sk) > 0))
 723                         {
 724                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
 725                         for (i=0; i<sk_num(sk); i++)
 726                                 {
 727                                 xn=(X509_NAME *)sk_value(sk,i);
 728                                 X509_NAME_oneline(xn,buf,sizeof(buf));
 729                                 BIO_write(bio,buf,strlen(buf));
 730                                 BIO_write(bio,"\n",1);
 731                                 }
 732                         }
 733                 else
 734                         {
 735                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
 736                         }
 737                 p=SSL_get_shared_ciphers(s,buf,BUFSIZ);
 738                 if (p != NULL)
 739                         {
 740                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
 741                         j=i=0;
 742                         while (*p)
 743                                 {
 744                                 if (*p == ':')
 745                                         {
 746                                         BIO_write(bio,space,15-j%25);
 747                                         i++;
 748                                         j=0;
 749                                         BIO_write(bio,((i%3)?" ":"\n"),1);
 750                                         }
 751                                 else
 752                                         {
 753                                         BIO_write(bio,p,1);
 754                                         j++;
 755                                         }
 756                                 p++;
 757                                 }
 758                         BIO_write(bio,"\n",1);
 759                         }
 760
 761                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
 762                         BIO_number_read(SSL_get_rbio(s)),
 763                         BIO_number_written(SSL_get_wbio(s)));
 764                 }
 765         BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
 766         c=SSL_get_current_cipher(s);
 767         BIO_printf(bio,"%s, Cipher is %s\n",
 768                 SSL_CIPHER_get_version(c),
 769                 SSL_CIPHER_get_name(c));
 770         if (peer != NULL)
 771         {
 772                 EVP_PKEY *pktmp;
 773                 BIO_printf(bio,"Server public key is %d bit\n",
 774                                                         EVP_PKEY_bits(pktmp));
 775                 EVP_PKEY_free(pktmp);
 776         }
 777         SSL_SESSION_print(bio,SSL_get_session(s));
 778         BIO_printf(bio,"---\n");
 779         if (peer != NULL)
 780                 X509_free(peer);
 781         }
 782