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 #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 #undef PROG
  74 #define PROG    s_client_main
  75
  76 /*#define SSL_HOST_NAME "www.netscape.com" */
  77 /*#define SSL_HOST_NAME "193.118.187.102" */
  78 #define SSL_HOST_NAME   "localhost"
  79
  80 /*#define TEST_CERT "client.pem" */ /* no default cert. */
  81
  82 #undef BUFSIZZ
  83 #define BUFSIZZ 1024*8
  84
  85 extern int verify_depth;
  86 extern int verify_error;
  87
  88 #ifdef FIONBIO
  89 static int c_nbio=0;
  90 #endif
  91 static int c_Pause=0;
  92 static int c_debug=0;
  93
  94 #ifndef NOPROTO
  95 static void sc_usage(void);
  96 static void print_stuff(BIO *berr,SSL *con,int full);
  97 #else
  98 static void sc_usage();
  99 static void print_stuff();
 100 #endif
 101
 102 static BIO *bio_c_out=NULL;
 103 static int c_quiet=0;
 104
 105 static void sc_usage()
 106         {
 107         BIO_printf(bio_err,"usage: s_client args\n");
 108         BIO_printf(bio_err,"\n");
 109         BIO_printf(bio_err," -host host     - use -connect instead\n");
 110         BIO_printf(bio_err," -port port     - use -connect instead\n");
 111         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
 112
 113         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 114         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 115         BIO_printf(bio_err," -key arg      - Private key file to use, PEM format assumed, in cert file if\n");
 116         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 117         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 118         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 119         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 120         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 121         BIO_printf(bio_err," -debug        - extra output\n");
 122         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
 123         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
 124 #ifdef FIONBIO
 125         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 126 #endif
 127         BIO_printf(bio_err," -quiet        - no s_client output\n");
 128         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 129         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 130         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 131         BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 132         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 133         BIO_printf(bio_err," -cipher       - prefered cipher to use, use the 'openssl ciphers'\n");
 134         BIO_printf(bio_err,"                 command to see what is available\n");
 135
 136         }
 137
 138 int MAIN(argc, argv)
 139 int argc;
 140 char **argv;
 141         {
 142         int off=0;
 143         SSL *con=NULL,*con2=NULL;
 144         int s,k,width,state=0;
 145         char *cbuf=NULL,*sbuf=NULL;
 146         int cbuf_len,cbuf_off;
 147         int sbuf_len,sbuf_off;
 148         fd_set readfds,writefds;
 149         short port=PORT;
 150         int full_log=1;
 151         char *host=SSL_HOST_NAME;
 152         char *cert_file=NULL,*key_file=NULL;
 153         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 154         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 155         int write_tty,read_tty,write_ssl,read_ssl,tty_on;
 156         SSL_CTX *ctx=NULL;
 157         int ret=1,in_init=1,i,nbio_test=0;
 158         SSL_METHOD *meth=NULL;
 159         BIO *sbio;
 160         /*static struct timeval timeout={10,0};*/
 161
 162 #if !defined(NO_SSL2) && !defined(NO_SSL3)
 163         meth=SSLv23_client_method();
 164 #elif !defined(NO_SSL3)
 165         meth=SSLv3_client_method();
 166 #elif !defined(NO_SSL2)
 167         meth=SSLv2_client_method();
 168 #endif
 169
 170         apps_startup();
 171         c_Pause=0;
 172         c_quiet=0;
 173         c_debug=0;
 174
 175         if (bio_err == NULL)
 176                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 177
 178         if (    ((cbuf=Malloc(BUFSIZZ)) == NULL) ||
 179                 ((sbuf=Malloc(BUFSIZZ)) == NULL))
 180                 {
 181                 BIO_printf(bio_err,"out of memory\n");
 182                 goto end;
 183                 }
 184
 185         verify_depth=0;
 186         verify_error=X509_V_OK;
 187 #ifdef FIONBIO
 188         c_nbio=0;
 189 #endif
 190
 191         argc--;
 192         argv++;
 193         while (argc >= 1)
 194                 {
 195                 if      (strcmp(*argv,"-host") == 0)
 196                         {
 197                         if (--argc < 1) goto bad;
 198                         host= *(++argv);
 199                         }
 200                 else if (strcmp(*argv,"-port") == 0)
 201                         {
 202                         if (--argc < 1) goto bad;
 203                         port=atoi(*(++argv));
 204                         if (port == 0) goto bad;
 205                         }
 206                 else if (strcmp(*argv,"-connect") == 0)
 207                         {
 208                         if (--argc < 1) goto bad;
 209                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 210                                 goto bad;
 211                         }
 212                 else if (strcmp(*argv,"-verify") == 0)
 213                         {
 214                         verify=SSL_VERIFY_PEER;
 215                         if (--argc < 1) goto bad;
 216                         verify_depth=atoi(*(++argv));
 217                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 218                         }
 219                 else if (strcmp(*argv,"-cert") == 0)
 220                         {
 221                         if (--argc < 1) goto bad;
 222                         cert_file= *(++argv);
 223                         }
 224                 else if (strcmp(*argv,"-quiet") == 0)
 225                         c_quiet=1;
 226                 else if (strcmp(*argv,"-pause") == 0)
 227                         c_Pause=1;
 228                 else if (strcmp(*argv,"-debug") == 0)
 229                         c_debug=1;
 230                 else if (strcmp(*argv,"-nbio_test") == 0)
 231                         nbio_test=1;
 232                 else if (strcmp(*argv,"-state") == 0)
 233                         state=1;
 234 #ifndef NO_SSL2
 235                 else if (strcmp(*argv,"-ssl2") == 0)
 236                         meth=SSLv2_client_method();
 237 #endif
 238 #ifndef NO_SSL3
 239                 else if (strcmp(*argv,"-ssl3") == 0)
 240                         meth=SSLv3_client_method();
 241 #endif
 242 #ifndef NO_TLS1
 243                 else if (strcmp(*argv,"-tls1") == 0)
 244                         meth=TLSv1_client_method();
 245 #endif
 246                 else if (strcmp(*argv,"-bugs") == 0)
 247                         bugs=1;
 248                 else if (strcmp(*argv,"-key") == 0)
 249                         {
 250                         if (--argc < 1) goto bad;
 251                         key_file= *(++argv);
 252                         }
 253                 else if (strcmp(*argv,"-reconnect") == 0)
 254                         {
 255                         reconnect=5;
 256                         }
 257                 else if (strcmp(*argv,"-CApath") == 0)
 258                         {
 259                         if (--argc < 1) goto bad;
 260                         CApath= *(++argv);
 261                         }
 262                 else if (strcmp(*argv,"-CAfile") == 0)
 263                         {
 264                         if (--argc < 1) goto bad;
 265                         CAfile= *(++argv);
 266                         }
 267                 else if (strcmp(*argv,"-no_tls1") == 0)
 268                         off|=SSL_OP_NO_TLSv1;
 269                 else if (strcmp(*argv,"-no_ssl3") == 0)
 270                         off|=SSL_OP_NO_SSLv3;
 271                 else if (strcmp(*argv,"-no_ssl2") == 0)
 272                         off|=SSL_OP_NO_SSLv2;
 273                 else if (strcmp(*argv,"-cipher") == 0)
 274                         {
 275                         if (--argc < 1) goto bad;
 276                         cipher= *(++argv);
 277                         }
 278 #ifdef FIONBIO
 279                 else if (strcmp(*argv,"-nbio") == 0)
 280                         { c_nbio=1; }
 281 #endif
 282                 else
 283                         {
 284                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 285                         badop=1;
 286                         break;
 287                         }
 288                 argc--;
 289                 argv++;
 290                 }
 291         if (badop)
 292                 {
 293 bad:
 294                 sc_usage();
 295                 goto end;
 296                 }
 297
 298         if (bio_c_out == NULL)
 299                 {
 300                 if (c_quiet)
 301                         {
 302                         bio_c_out=BIO_new(BIO_s_null());
 303                         }
 304                 else
 305                         {
 306                         if (bio_c_out == NULL)
 307                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 308                         }
 309                 }
 310
 311         SSLeay_add_ssl_algorithms();
 312         ctx=SSL_CTX_new(meth);
 313         if (ctx == NULL)
 314                 {
 315                 ERR_print_errors(bio_err);
 316                 goto end;
 317                 }
 318
 319         if (bugs)
 320                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
 321         else
 322                 SSL_CTX_set_options(ctx,off);
 323
 324         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 325         if (cipher != NULL)
 326                 SSL_CTX_set_cipher_list(ctx,cipher);
 327 #if 0
 328         else
 329                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
 330 #endif
 331
 332         SSL_CTX_set_verify(ctx,verify,verify_callback);
 333         if (!set_cert_stuff(ctx,cert_file,key_file))
 334                 goto end;
 335
 336         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 337                 (!SSL_CTX_set_default_verify_paths(ctx)))
 338                 {
 339                 /* BIO_printf(bio_err,"error seting default verify locations\n"); */
 340                 ERR_print_errors(bio_err);
 341                 /* goto end; */
 342                 }
 343
 344         SSL_load_error_strings();
 345
 346         con=(SSL *)SSL_new(ctx);
 347 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
 348
 349 re_start:
 350
 351         if (init_client(&s,host,port) == 0)
 352                 {
 353                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
 354                 SHUTDOWN(s);
 355                 goto end;
 356                 }
 357         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
 358
 359 #ifdef FIONBIO
 360         if (c_nbio)
 361                 {
 362                 unsigned long l=1;
 363                 BIO_printf(bio_c_out,"turning on non blocking io\n");
 364                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
 365                         {
 366                         ERR_print_errors(bio_err);
 367                         goto end;
 368                         }
 369                 }
 370 #endif
 371         if (c_Pause & 0x01) con->debug=1;
 372         sbio=BIO_new_socket(s,BIO_NOCLOSE);
 373
 374         if (nbio_test)
 375                 {
 376                 BIO *test;
 377
 378                 test=BIO_new(BIO_f_nbio_test());
 379                 sbio=BIO_push(test,sbio);
 380                 }
 381
 382         if (c_debug)
 383                 {
 384                 con->debug=1;
 385                 BIO_set_callback(sbio,bio_dump_cb);
 386                 BIO_set_callback_arg(sbio,bio_c_out);
 387                 }
 388
 389         SSL_set_bio(con,sbio,sbio);
 390         SSL_set_connect_state(con);
 391
 392         /* ok, lets connect */
 393         width=SSL_get_fd(con)+1;
 394
 395         read_tty=1;
 396         write_tty=0;
 397         tty_on=0;
 398         read_ssl=1;
 399         write_ssl=1;
 400
 401         cbuf_len=0;
 402         cbuf_off=0;
 403         sbuf_len=0;
 404         sbuf_off=0;
 405
 406         for (;;)
 407                 {
 408                 FD_ZERO(&readfds);
 409                 FD_ZERO(&writefds);
 410
 411                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
 412                         {
 413                         in_init=1;
 414                         tty_on=0;
 415                         }
 416                 else
 417                         {
 418                         tty_on=1;
 419                         if (in_init)
 420                                 {
 421                                 in_init=0;
 422                                 print_stuff(bio_c_out,con,full_log);
 423                                 if (full_log > 0) full_log--;
 424
 425                                 if (reconnect)
 426                                         {
 427                                         reconnect--;
 428                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
 429                                         SSL_shutdown(con);
 430                                         SSL_set_connect_state(con);
 431                                         SHUTDOWN(SSL_get_fd(con));
 432                                         goto re_start;
 433                                         }
 434                                 }
 435                         }
 436
 437 #ifndef WINDOWS
 438                 if (tty_on)
 439                         {
 440                         if (read_tty)  FD_SET(fileno(stdin),&readfds);
 441                         if (write_tty) FD_SET(fileno(stdout),&writefds);
 442                         }
 443 #endif
 444                 if (read_ssl)
 445                         FD_SET(SSL_get_fd(con),&readfds);
 446                 if (write_ssl)
 447                         FD_SET(SSL_get_fd(con),&writefds);
 448
 449 /*              printf("mode tty(%d %d%d) ssl(%d%d)\n",
 450                         tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
 451
 452                 i=select(width,&readfds,&writefds,NULL,NULL);
 453                 if ( i < 0)
 454                         {
 455                         BIO_printf(bio_err,"bad select %d\n",
 456                                 get_last_socket_error());
 457                         goto shut;
 458                         /* goto end; */
 459                         }
 460
 461                 if (FD_ISSET(SSL_get_fd(con),&writefds))
 462                         {
 463                         k=SSL_write(con,&(cbuf[cbuf_off]),
 464                                 (unsigned int)cbuf_len);
 465                         switch (SSL_get_error(con,k))
 466                                 {
 467                         case SSL_ERROR_NONE:
 468                                 cbuf_off+=k;
 469                                 cbuf_len-=k;
 470                                 if (k <= 0) goto end;
 471                                 /* we have done a  write(con,NULL,0); */
 472                                 if (cbuf_len <= 0)
 473                                         {
 474                                         read_tty=1;
 475                                         write_ssl=0;
 476                                         }
 477                                 else /* if (cbuf_len > 0) */
 478                                         {
 479                                         read_tty=0;
 480                                         write_ssl=1;
 481                                         }
 482                                 break;
 483                         case SSL_ERROR_WANT_WRITE:
 484                                 BIO_printf(bio_c_out,"write W BLOCK\n");
 485                                 write_ssl=1;
 486                                 read_tty=0;
 487                                 break;
 488                         case SSL_ERROR_WANT_READ:
 489                                 BIO_printf(bio_c_out,"write R BLOCK\n");
 490                                 write_tty=0;
 491                                 read_ssl=1;
 492                                 write_ssl=0;
 493                                 break;
 494                         case SSL_ERROR_WANT_X509_LOOKUP:
 495                                 BIO_printf(bio_c_out,"write X BLOCK\n");
 496                                 break;
 497                         case SSL_ERROR_ZERO_RETURN:
 498                                 if (cbuf_len != 0)
 499                                         {
 500                                         BIO_printf(bio_c_out,"shutdown\n");
 501                                         goto shut;
 502                                         }
 503                                 else
 504                                         {
 505                                         read_tty=1;
 506                                         write_ssl=0;
 507                                         break;
 508                                         }
 509
 510                         case SSL_ERROR_SYSCALL:
 511                                 if ((k != 0) || (cbuf_len != 0))
 512                                         {
 513                                         BIO_printf(bio_err,"write:errno=%d\n",
 514                                                 get_last_socket_error());
 515                                         goto shut;
 516                                         }
 517                                 else
 518                                         {
 519                                         read_tty=1;
 520                                         write_ssl=0;
 521                                         }
 522                                 break;
 523                         case SSL_ERROR_SSL:
 524                                 ERR_print_errors(bio_err);
 525                                 goto shut;
 526                                 }
 527                         }
 528 #ifndef WINDOWS
 529                 else if (FD_ISSET(fileno(stdout),&writefds))
 530                         {
 531                         i=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len);
 532
 533                         if (i <= 0)
 534                                 {
 535                                 BIO_printf(bio_c_out,"DONE\n");
 536                                 goto shut;
 537                                 /* goto end; */
 538                                 }
 539
 540                         sbuf_len-=i;;
 541                         sbuf_off+=i;
 542                         if (sbuf_len <= 0)
 543                                 {
 544                                 read_ssl=1;
 545                                 write_tty=0;
 546                                 }
 547                         }
 548 #endif
 549                 else if (FD_ISSET(SSL_get_fd(con),&readfds))
 550                         {
 551 #ifdef RENEG
 552 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
 553 #endif
 554 #if 1
 555                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
 556 #else
 557 /* Demo for pending and peek :-) */
 558                         k=SSL_read(con,sbuf,16);
 559 { char zbuf[10240];
 560 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
 561 }
 562 #endif
 563
 564                         switch (SSL_get_error(con,k))
 565                                 {
 566                         case SSL_ERROR_NONE:
 567                                 if (k <= 0)
 568                                         goto end;
 569                                 sbuf_off=0;
 570                                 sbuf_len=k;
 571
 572                                 read_ssl=0;
 573                                 write_tty=1;
 574                                 break;
 575                         case SSL_ERROR_WANT_WRITE:
 576                                 BIO_printf(bio_c_out,"read W BLOCK\n");
 577                                 write_ssl=1;
 578                                 read_tty=0;
 579                                 break;
 580                         case SSL_ERROR_WANT_READ:
 581                                 BIO_printf(bio_c_out,"read R BLOCK\n");
 582                                 write_tty=0;
 583                                 read_ssl=1;
 584                                 if ((read_tty == 0) && (write_ssl == 0))
 585                                         write_ssl=1;
 586                                 break;
 587                         case SSL_ERROR_WANT_X509_LOOKUP:
 588                                 BIO_printf(bio_c_out,"read X BLOCK\n");
 589                                 break;
 590                         case SSL_ERROR_SYSCALL:
 591                                 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
 592                                 goto shut;
 593                         case SSL_ERROR_ZERO_RETURN:
 594                                 BIO_printf(bio_c_out,"closed\n");
 595                                 goto shut;
 596                         case SSL_ERROR_SSL:
 597                                 ERR_print_errors(bio_err);
 598                                 goto shut;
 599                                 /* break; */
 600                                 }
 601                         }
 602
 603 #ifndef WINDOWS
 604                 else if (FD_ISSET(fileno(stdin),&readfds))
 605                         {
 606                         i=read(fileno(stdin),cbuf,BUFSIZZ);
 607
 608                         if ((!c_quiet) && ((i <= 0) || (cbuf[0] == 'Q')))
 609                                 {
 610                                 BIO_printf(bio_err,"DONE\n");
 611                                 goto shut;
 612                                 }
 613
 614                         if ((!c_quiet) && (cbuf[0] == 'R'))
 615                                 {
 616                                 SSL_renegotiate(con);
 617                                 read_tty=0;
 618                                 write_ssl=1;
 619                                 }
 620                         else
 621                                 {
 622                                 cbuf_len=i;
 623                                 cbuf_off=0;
 624                                 }
 625
 626                         read_tty=0;
 627                         write_ssl=1;
 628                         }
 629 #endif
 630                 }
 631 shut:
 632         SSL_shutdown(con);
 633         SHUTDOWN(SSL_get_fd(con));
 634         ret=0;
 635 end:
 636         if (con != NULL) SSL_free(con);
 637         if (con2 != NULL) SSL_free(con2);
 638         if (ctx != NULL) SSL_CTX_free(ctx);
 639         if (cbuf != NULL) { memset(cbuf,0,BUFSIZZ); Free(cbuf); }
 640         if (sbuf != NULL) { memset(sbuf,0,BUFSIZZ); Free(sbuf); }
 641         if (bio_c_out != NULL)
 642                 {
 643                 BIO_free(bio_c_out);
 644                 bio_c_out=NULL;
 645                 }
 646         EXIT(ret);
 647         }
 648
 649
 650 static void print_stuff(bio,s,full)
 651 BIO *bio;
 652 SSL *s;
 653 int full;
 654         {
 655         X509 *peer=NULL;
 656         char *p;
 657         static char *space="                ";
 658         char buf[BUFSIZ];
 659         STACK *sk;
 660         SSL_CIPHER *c;
 661         X509_NAME *xn;
 662         int j,i;
 663
 664         if (full)
 665                 {
 666                 sk=SSL_get_peer_cert_chain(s);
 667                 if (sk != NULL)
 668                         {
 669                         BIO_printf(bio,"---\nCertificate chain\n");
 670                         for (i=0; i<sk_num(sk); i++)
 671                                 {
 672                                 X509_NAME_oneline(X509_get_subject_name((X509 *)
 673                                         sk_value(sk,i)),buf,BUFSIZ);
 674                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
 675                                 X509_NAME_oneline(X509_get_issuer_name((X509 *)
 676                                         sk_value(sk,i)),buf,BUFSIZ);
 677                                 BIO_printf(bio,"   i:%s\n",buf);
 678                                 }
 679                         }
 680
 681                 BIO_printf(bio,"---\n");
 682                 peer=SSL_get_peer_certificate(s);
 683                 if (peer != NULL)
 684                         {
 685                         BIO_printf(bio,"Server certificate\n");
 686                         PEM_write_bio_X509(bio,peer);
 687                         X509_NAME_oneline(X509_get_subject_name(peer),
 688                                 buf,BUFSIZ);
 689                         BIO_printf(bio,"subject=%s\n",buf);
 690                         X509_NAME_oneline(X509_get_issuer_name(peer),
 691                                 buf,BUFSIZ);
 692                         BIO_printf(bio,"issuer=%s\n",buf);
 693                         }
 694                 else
 695                         BIO_printf(bio,"no peer certificate available\n");
 696
 697                 sk=SSL_get_client_CA_list(s);
 698                 if ((sk != NULL) && (sk_num(sk) > 0))
 699                         {
 700                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
 701                         for (i=0; i<sk_num(sk); i++)
 702                                 {
 703                                 xn=(X509_NAME *)sk_value(sk,i);
 704                                 X509_NAME_oneline(xn,buf,sizeof(buf));
 705                                 BIO_write(bio,buf,strlen(buf));
 706                                 BIO_write(bio,"\n",1);
 707                                 }
 708                         }
 709                 else
 710                         {
 711                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
 712                         }
 713                 p=SSL_get_shared_ciphers(s,buf,BUFSIZ);
 714                 if (p != NULL)
 715                         {
 716                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
 717                         j=i=0;
 718                         while (*p)
 719                                 {
 720                                 if (*p == ':')
 721                                         {
 722                                         BIO_write(bio,space,15-j%25);
 723                                         i++;
 724                                         j=0;
 725                                         BIO_write(bio,((i%3)?" ":"\n"),1);
 726                                         }
 727                                 else
 728                                         {
 729                                         BIO_write(bio,p,1);
 730                                         j++;
 731                                         }
 732                                 p++;
 733                                 }
 734                         BIO_write(bio,"\n",1);
 735                         }
 736
 737                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
 738                         BIO_number_read(SSL_get_rbio(s)),
 739                         BIO_number_written(SSL_get_wbio(s)));
 740                 }
 741         BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
 742         c=SSL_get_current_cipher(s);
 743         BIO_printf(bio,"%s, Cipher is %s\n",
 744                 SSL_CIPHER_get_version(c),
 745                 SSL_CIPHER_get_name(c));
 746         if (peer != NULL) {
 747                 EVP_PKEY *pktmp;
 748                 pktmp = X509_get_pubkey(peer);
 749                 BIO_printf(bio,"Server public key is %d bit\n",
 750                                                          EVP_PKEY_bits(pktmp));
 751                 EVP_PKEY_free(pktmp);
 752         }
 753         SSL_SESSION_print(bio,SSL_get_session(s));
 754         BIO_printf(bio,"---\n");
 755         if (peer != NULL)
 756                 X509_free(peer);
 757         }
 758