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 static int c_showcerts=0;
  94
  95 #ifndef NOPROTO
  96 static void sc_usage(void);
  97 static void print_stuff(BIO *berr,SSL *con,int full);
  98 #else
  99 static void sc_usage();
 100 static void print_stuff();
 101 #endif
 102
 103 static BIO *bio_c_out=NULL;
 104 static int c_quiet=0;
 105
 106 static void sc_usage()
 107         {
 108         BIO_printf(bio_err,"usage: s_client args\n");
 109         BIO_printf(bio_err,"\n");
 110         BIO_printf(bio_err," -host host     - use -connect instead\n");
 111         BIO_printf(bio_err," -port port     - use -connect instead\n");
 112         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
 113
 114         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 115         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 116         BIO_printf(bio_err," -key arg      - Private key file to use, PEM format assumed, in cert file if\n");
 117         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 118         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 119         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 120         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 121         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 122         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
 123         BIO_printf(bio_err," -debug        - extra output\n");
 124         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
 125         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
 126 #ifdef FIONBIO
 127         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 128 #endif
 129         BIO_printf(bio_err," -quiet        - no s_client output\n");
 130         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 131         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 132         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 133         BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 134         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 135         BIO_printf(bio_err," -cipher       - prefered cipher to use, use the 'openssl ciphers'\n");
 136         BIO_printf(bio_err,"                 command to see what is available\n");
 137
 138         }
 139
 140 int MAIN(argc, argv)
 141 int argc;
 142 char **argv;
 143         {
 144         int off=0;
 145         SSL *con=NULL,*con2=NULL;
 146         int s,k,width,state=0;
 147         char *cbuf=NULL,*sbuf=NULL;
 148         int cbuf_len,cbuf_off;
 149         int sbuf_len,sbuf_off;
 150         fd_set readfds,writefds;
 151         short port=PORT;
 152         int full_log=1;
 153         char *host=SSL_HOST_NAME;
 154         char *cert_file=NULL,*key_file=NULL;
 155         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 156         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 157         int write_tty,read_tty,write_ssl,read_ssl,tty_on;
 158         SSL_CTX *ctx=NULL;
 159         int ret=1,in_init=1,i,nbio_test=0;
 160         SSL_METHOD *meth=NULL;
 161         BIO *sbio;
 162         /*static struct timeval timeout={10,0};*/
 163
 164 #if !defined(NO_SSL2) && !defined(NO_SSL3)
 165         meth=SSLv23_client_method();
 166 #elif !defined(NO_SSL3)
 167         meth=SSLv3_client_method();
 168 #elif !defined(NO_SSL2)
 169         meth=SSLv2_client_method();
 170 #endif
 171
 172         apps_startup();
 173         c_Pause=0;
 174         c_quiet=0;
 175         c_debug=0;
 176         c_showcerts=0;
 177
 178         if (bio_err == NULL)
 179                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 180
 181         if (    ((cbuf=Malloc(BUFSIZZ)) == NULL) ||
 182                 ((sbuf=Malloc(BUFSIZZ)) == NULL))
 183                 {
 184                 BIO_printf(bio_err,"out of memory\n");
 185                 goto end;
 186                 }
 187
 188         verify_depth=0;
 189         verify_error=X509_V_OK;
 190 #ifdef FIONBIO
 191         c_nbio=0;
 192 #endif
 193
 194         argc--;
 195         argv++;
 196         while (argc >= 1)
 197                 {
 198                 if      (strcmp(*argv,"-host") == 0)
 199                         {
 200                         if (--argc < 1) goto bad;
 201                         host= *(++argv);
 202                         }
 203                 else if (strcmp(*argv,"-port") == 0)
 204                         {
 205                         if (--argc < 1) goto bad;
 206                         port=atoi(*(++argv));
 207                         if (port == 0) goto bad;
 208                         }
 209                 else if (strcmp(*argv,"-connect") == 0)
 210                         {
 211                         if (--argc < 1) goto bad;
 212                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 213                                 goto bad;
 214                         }
 215                 else if (strcmp(*argv,"-verify") == 0)
 216                         {
 217                         verify=SSL_VERIFY_PEER;
 218                         if (--argc < 1) goto bad;
 219                         verify_depth=atoi(*(++argv));
 220                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 221                         }
 222                 else if (strcmp(*argv,"-cert") == 0)
 223                         {
 224                         if (--argc < 1) goto bad;
 225                         cert_file= *(++argv);
 226                         }
 227                 else if (strcmp(*argv,"-quiet") == 0)
 228                         c_quiet=1;
 229                 else if (strcmp(*argv,"-pause") == 0)
 230                         c_Pause=1;
 231                 else if (strcmp(*argv,"-debug") == 0)
 232                         c_debug=1;
 233                 else if (strcmp(*argv,"-showcerts") == 0)
 234                         c_showcerts=1;
 235                 else if (strcmp(*argv,"-nbio_test") == 0)
 236                         nbio_test=1;
 237                 else if (strcmp(*argv,"-state") == 0)
 238                         state=1;
 239 #ifndef NO_SSL2
 240                 else if (strcmp(*argv,"-ssl2") == 0)
 241                         meth=SSLv2_client_method();
 242 #endif
 243 #ifndef NO_SSL3
 244                 else if (strcmp(*argv,"-ssl3") == 0)
 245                         meth=SSLv3_client_method();
 246 #endif
 247 #ifndef NO_TLS1
 248                 else if (strcmp(*argv,"-tls1") == 0)
 249                         meth=TLSv1_client_method();
 250 #endif
 251                 else if (strcmp(*argv,"-bugs") == 0)
 252                         bugs=1;
 253                 else if (strcmp(*argv,"-key") == 0)
 254                         {
 255                         if (--argc < 1) goto bad;
 256                         key_file= *(++argv);
 257                         }
 258                 else if (strcmp(*argv,"-reconnect") == 0)
 259                         {
 260                         reconnect=5;
 261                         }
 262                 else if (strcmp(*argv,"-CApath") == 0)
 263                         {
 264                         if (--argc < 1) goto bad;
 265                         CApath= *(++argv);
 266                         }
 267                 else if (strcmp(*argv,"-CAfile") == 0)
 268                         {
 269                         if (--argc < 1) goto bad;
 270                         CAfile= *(++argv);
 271                         }
 272                 else if (strcmp(*argv,"-no_tls1") == 0)
 273                         off|=SSL_OP_NO_TLSv1;
 274                 else if (strcmp(*argv,"-no_ssl3") == 0)
 275                         off|=SSL_OP_NO_SSLv3;
 276                 else if (strcmp(*argv,"-no_ssl2") == 0)
 277                         off|=SSL_OP_NO_SSLv2;
 278                 else if (strcmp(*argv,"-cipher") == 0)
 279                         {
 280                         if (--argc < 1) goto bad;
 281                         cipher= *(++argv);
 282                         }
 283 #ifdef FIONBIO
 284                 else if (strcmp(*argv,"-nbio") == 0)
 285                         { c_nbio=1; }
 286 #endif
 287                 else
 288                         {
 289                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 290                         badop=1;
 291                         break;
 292                         }
 293                 argc--;
 294                 argv++;
 295                 }
 296         if (badop)
 297                 {
 298 bad:
 299                 sc_usage();
 300                 goto end;
 301                 }
 302
 303         if (bio_c_out == NULL)
 304                 {
 305                 if (c_quiet)
 306                         {
 307                         bio_c_out=BIO_new(BIO_s_null());
 308                         }
 309                 else
 310                         {
 311                         if (bio_c_out == NULL)
 312                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 313                         }
 314                 }
 315
 316         SSLeay_add_ssl_algorithms();
 317         ctx=SSL_CTX_new(meth);
 318         if (ctx == NULL)
 319                 {
 320                 ERR_print_errors(bio_err);
 321                 goto end;
 322                 }
 323
 324         if (bugs)
 325                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
 326         else
 327                 SSL_CTX_set_options(ctx,off);
 328
 329         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 330         if (cipher != NULL)
 331                 SSL_CTX_set_cipher_list(ctx,cipher);
 332 #if 0
 333         else
 334                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
 335 #endif
 336
 337         SSL_CTX_set_verify(ctx,verify,verify_callback);
 338         if (!set_cert_stuff(ctx,cert_file,key_file))
 339                 goto end;
 340
 341         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 342                 (!SSL_CTX_set_default_verify_paths(ctx)))
 343                 {
 344                 /* BIO_printf(bio_err,"error seting default verify locations\n"); */
 345                 ERR_print_errors(bio_err);
 346                 /* goto end; */
 347                 }
 348
 349         SSL_load_error_strings();
 350
 351         con=(SSL *)SSL_new(ctx);
 352 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
 353
 354 re_start:
 355
 356         if (init_client(&s,host,port) == 0)
 357                 {
 358                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
 359                 SHUTDOWN(s);
 360                 goto end;
 361                 }
 362         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
 363
 364 #ifdef FIONBIO
 365         if (c_nbio)
 366                 {
 367                 unsigned long l=1;
 368                 BIO_printf(bio_c_out,"turning on non blocking io\n");
 369                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
 370                         {
 371                         ERR_print_errors(bio_err);
 372                         goto end;
 373                         }
 374                 }
 375 #endif
 376         if (c_Pause & 0x01) con->debug=1;
 377         sbio=BIO_new_socket(s,BIO_NOCLOSE);
 378
 379         if (nbio_test)
 380                 {
 381                 BIO *test;
 382
 383                 test=BIO_new(BIO_f_nbio_test());
 384                 sbio=BIO_push(test,sbio);
 385                 }
 386
 387         if (c_debug)
 388                 {
 389                 con->debug=1;
 390                 BIO_set_callback(sbio,bio_dump_cb);
 391                 BIO_set_callback_arg(sbio,bio_c_out);
 392                 }
 393
 394         SSL_set_bio(con,sbio,sbio);
 395         SSL_set_connect_state(con);
 396
 397         /* ok, lets connect */
 398         width=SSL_get_fd(con)+1;
 399
 400         read_tty=1;
 401         write_tty=0;
 402         tty_on=0;
 403         read_ssl=1;
 404         write_ssl=1;
 405
 406         cbuf_len=0;
 407         cbuf_off=0;
 408         sbuf_len=0;
 409         sbuf_off=0;
 410
 411         for (;;)
 412                 {
 413                 FD_ZERO(&readfds);
 414                 FD_ZERO(&writefds);
 415
 416                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
 417                         {
 418                         in_init=1;
 419                         tty_on=0;
 420                         }
 421                 else
 422                         {
 423                         tty_on=1;
 424                         if (in_init)
 425                                 {
 426                                 in_init=0;
 427                                 print_stuff(bio_c_out,con,full_log);
 428                                 if (full_log > 0) full_log--;
 429
 430                                 if (reconnect)
 431                                         {
 432                                         reconnect--;
 433                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
 434                                         SSL_shutdown(con);
 435                                         SSL_set_connect_state(con);
 436                                         SHUTDOWN(SSL_get_fd(con));
 437                                         goto re_start;
 438                                         }
 439                                 }
 440                         }
 441
 442 #ifndef WINDOWS
 443                 if (tty_on)
 444                         {
 445                         if (read_tty)  FD_SET(fileno(stdin),&readfds);
 446                         if (write_tty) FD_SET(fileno(stdout),&writefds);
 447                         }
 448 #endif
 449                 if (read_ssl)
 450                         FD_SET(SSL_get_fd(con),&readfds);
 451                 if (write_ssl)
 452                         FD_SET(SSL_get_fd(con),&writefds);
 453
 454 /*              printf("mode tty(%d %d%d) ssl(%d%d)\n",
 455                         tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
 456
 457                 i=select(width,&readfds,&writefds,NULL,NULL);
 458                 if ( i < 0)
 459                         {
 460                         BIO_printf(bio_err,"bad select %d\n",
 461                                 get_last_socket_error());
 462                         goto shut;
 463                         /* goto end; */
 464                         }
 465
 466                 if (FD_ISSET(SSL_get_fd(con),&writefds))
 467                         {
 468                         k=SSL_write(con,&(cbuf[cbuf_off]),
 469                                 (unsigned int)cbuf_len);
 470                         switch (SSL_get_error(con,k))
 471                                 {
 472                         case SSL_ERROR_NONE:
 473                                 cbuf_off+=k;
 474                                 cbuf_len-=k;
 475                                 if (k <= 0) goto end;
 476                                 /* we have done a  write(con,NULL,0); */
 477                                 if (cbuf_len <= 0)
 478                                         {
 479                                         read_tty=1;
 480                                         write_ssl=0;
 481                                         }
 482                                 else /* if (cbuf_len > 0) */
 483                                         {
 484                                         read_tty=0;
 485                                         write_ssl=1;
 486                                         }
 487                                 break;
 488                         case SSL_ERROR_WANT_WRITE:
 489                                 BIO_printf(bio_c_out,"write W BLOCK\n");
 490                                 write_ssl=1;
 491                                 read_tty=0;
 492                                 break;
 493                         case SSL_ERROR_WANT_READ:
 494                                 BIO_printf(bio_c_out,"write R BLOCK\n");
 495                                 write_tty=0;
 496                                 read_ssl=1;
 497                                 write_ssl=0;
 498                                 break;
 499                         case SSL_ERROR_WANT_X509_LOOKUP:
 500                                 BIO_printf(bio_c_out,"write X BLOCK\n");
 501                                 break;
 502                         case SSL_ERROR_ZERO_RETURN:
 503                                 if (cbuf_len != 0)
 504                                         {
 505                                         BIO_printf(bio_c_out,"shutdown\n");
 506                                         goto shut;
 507                                         }
 508                                 else
 509                                         {
 510                                         read_tty=1;
 511                                         write_ssl=0;
 512                                         break;
 513                                         }
 514
 515                         case SSL_ERROR_SYSCALL:
 516                                 if ((k != 0) || (cbuf_len != 0))
 517                                         {
 518                                         BIO_printf(bio_err,"write:errno=%d\n",
 519                                                 get_last_socket_error());
 520                                         goto shut;
 521                                         }
 522                                 else
 523                                         {
 524                                         read_tty=1;
 525                                         write_ssl=0;
 526                                         }
 527                                 break;
 528                         case SSL_ERROR_SSL:
 529                                 ERR_print_errors(bio_err);
 530                                 goto shut;
 531                                 }
 532                         }
 533 #ifndef WINDOWS
 534                 else if (FD_ISSET(fileno(stdout),&writefds))
 535                         {
 536                         i=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len);
 537
 538                         if (i <= 0)
 539                                 {
 540                                 BIO_printf(bio_c_out,"DONE\n");
 541                                 goto shut;
 542                                 /* goto end; */
 543                                 }
 544
 545                         sbuf_len-=i;;
 546                         sbuf_off+=i;
 547                         if (sbuf_len <= 0)
 548                                 {
 549                                 read_ssl=1;
 550                                 write_tty=0;
 551                                 }
 552                         }
 553 #endif
 554                 else if (FD_ISSET(SSL_get_fd(con),&readfds))
 555                         {
 556 #ifdef RENEG
 557 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
 558 #endif
 559 #if 1
 560                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
 561 #else
 562 /* Demo for pending and peek :-) */
 563                         k=SSL_read(con,sbuf,16);
 564 { char zbuf[10240];
 565 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
 566 }
 567 #endif
 568
 569                         switch (SSL_get_error(con,k))
 570                                 {
 571                         case SSL_ERROR_NONE:
 572                                 if (k <= 0)
 573                                         goto end;
 574                                 sbuf_off=0;
 575                                 sbuf_len=k;
 576
 577                                 read_ssl=0;
 578                                 write_tty=1;
 579                                 break;
 580                         case SSL_ERROR_WANT_WRITE:
 581                                 BIO_printf(bio_c_out,"read W BLOCK\n");
 582                                 write_ssl=1;
 583                                 read_tty=0;
 584                                 break;
 585                         case SSL_ERROR_WANT_READ:
 586                                 BIO_printf(bio_c_out,"read R BLOCK\n");
 587                                 write_tty=0;
 588                                 read_ssl=1;
 589                                 if ((read_tty == 0) && (write_ssl == 0))
 590                                         write_ssl=1;
 591                                 break;
 592                         case SSL_ERROR_WANT_X509_LOOKUP:
 593                                 BIO_printf(bio_c_out,"read X BLOCK\n");
 594                                 break;
 595                         case SSL_ERROR_SYSCALL:
 596                                 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
 597                                 goto shut;
 598                         case SSL_ERROR_ZERO_RETURN:
 599                                 BIO_printf(bio_c_out,"closed\n");
 600                                 goto shut;
 601                         case SSL_ERROR_SSL:
 602                                 ERR_print_errors(bio_err);
 603                                 goto shut;
 604                                 /* break; */
 605                                 }
 606                         }
 607
 608 #ifndef WINDOWS
 609                 else if (FD_ISSET(fileno(stdin),&readfds))
 610                         {
 611                         i=read(fileno(stdin),cbuf,BUFSIZZ);
 612
 613                         if ((!c_quiet) && ((i <= 0) || (cbuf[0] == 'Q')))
 614                                 {
 615                                 BIO_printf(bio_err,"DONE\n");
 616                                 goto shut;
 617                                 }
 618
 619                         if ((!c_quiet) && (cbuf[0] == 'R'))
 620                                 {
 621                                 SSL_renegotiate(con);
 622                                 read_tty=0;
 623                                 write_ssl=1;
 624                                 }
 625                         else
 626                                 {
 627                                 cbuf_len=i;
 628                                 cbuf_off=0;
 629                                 }
 630
 631                         read_tty=0;
 632                         write_ssl=1;
 633                         }
 634 #endif
 635                 }
 636 shut:
 637         SSL_shutdown(con);
 638         SHUTDOWN(SSL_get_fd(con));
 639         ret=0;
 640 end:
 641         if (con != NULL) SSL_free(con);
 642         if (con2 != NULL) SSL_free(con2);
 643         if (ctx != NULL) SSL_CTX_free(ctx);
 644         if (cbuf != NULL) { memset(cbuf,0,BUFSIZZ); Free(cbuf); }
 645         if (sbuf != NULL) { memset(sbuf,0,BUFSIZZ); Free(sbuf); }
 646         if (bio_c_out != NULL)
 647                 {
 648                 BIO_free(bio_c_out);
 649                 bio_c_out=NULL;
 650                 }
 651         EXIT(ret);
 652         }
 653
 654
 655 static void print_stuff(bio,s,full)
 656 BIO *bio;
 657 SSL *s;
 658 int full;
 659         {
 660         X509 *peer=NULL;
 661         char *p;
 662         static char *space="                ";
 663         char buf[BUFSIZ];
 664         STACK *sk;
 665         SSL_CIPHER *c;
 666         X509_NAME *xn;
 667         int j,i;
 668
 669         if (full)
 670                 {
 671                 sk=SSL_get_peer_cert_chain(s);
 672                 if (sk != NULL)
 673                         {
 674                         BIO_printf(bio,"---\nCertificate chain\n");
 675                         for (i=0; i<sk_num(sk); i++)
 676                                 {
 677                                 X509_NAME_oneline(X509_get_subject_name((X509 *)
 678                                         sk_value(sk,i)),buf,BUFSIZ);
 679                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
 680                                 X509_NAME_oneline(X509_get_issuer_name((X509 *)
 681                                         sk_value(sk,i)),buf,BUFSIZ);
 682                                 BIO_printf(bio,"   i:%s\n",buf);
 683                                 if (c_showcerts)
 684                                         PEM_write_bio_X509(bio,(X509 *) sk_value(sk,i));
 685                                 }
 686                         }
 687
 688                 BIO_printf(bio,"---\n");
 689                 peer=SSL_get_peer_certificate(s);
 690                 if (peer != NULL)
 691                         {
 692                         BIO_printf(bio,"Server certificate\n");
 693                         if (!c_showcerts) /* Redundant if we showed the whole chain */
 694                                 PEM_write_bio_X509(bio,peer);
 695                         X509_NAME_oneline(X509_get_subject_name(peer),
 696                                 buf,BUFSIZ);
 697                         BIO_printf(bio,"subject=%s\n",buf);
 698                         X509_NAME_oneline(X509_get_issuer_name(peer),
 699                                 buf,BUFSIZ);
 700                         BIO_printf(bio,"issuer=%s\n",buf);
 701                         }
 702                 else
 703                         BIO_printf(bio,"no peer certificate available\n");
 704
 705                 sk=SSL_get_client_CA_list(s);
 706                 if ((sk != NULL) && (sk_num(sk) > 0))
 707                         {
 708                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
 709                         for (i=0; i<sk_num(sk); i++)
 710                                 {
 711                                 xn=(X509_NAME *)sk_value(sk,i);
 712                                 X509_NAME_oneline(xn,buf,sizeof(buf));
 713                                 BIO_write(bio,buf,strlen(buf));
 714                                 BIO_write(bio,"\n",1);
 715                                 }
 716                         }
 717                 else
 718                         {
 719                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
 720                         }
 721                 p=SSL_get_shared_ciphers(s,buf,BUFSIZ);
 722                 if (p != NULL)
 723                         {
 724                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
 725                         j=i=0;
 726                         while (*p)
 727                                 {
 728                                 if (*p == ':')
 729                                         {
 730                                         BIO_write(bio,space,15-j%25);
 731                                         i++;
 732                                         j=0;
 733                                         BIO_write(bio,((i%3)?" ":"\n"),1);
 734                                         }
 735                                 else
 736                                         {
 737                                         BIO_write(bio,p,1);
 738                                         j++;
 739                                         }
 740                                 p++;
 741                                 }
 742                         BIO_write(bio,"\n",1);
 743                         }
 744
 745                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
 746                         BIO_number_read(SSL_get_rbio(s)),
 747                         BIO_number_written(SSL_get_wbio(s)));
 748                 }
 749         BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
 750         c=SSL_get_current_cipher(s);
 751         BIO_printf(bio,"%s, Cipher is %s\n",
 752                 SSL_CIPHER_get_version(c),
 753                 SSL_CIPHER_get_name(c));
 754         if (peer != NULL) {
 755                 EVP_PKEY *pktmp;
 756                 pktmp = X509_get_pubkey(peer);
 757                 BIO_printf(bio,"Server public key is %d bit\n",
 758                                                          EVP_PKEY_bits(pktmp));
 759                 EVP_PKEY_free(pktmp);
 760         }
 761         SSL_SESSION_print(bio,SSL_get_session(s));
 762         BIO_printf(bio,"---\n");
 763         if (peer != NULL)
 764                 X509_free(peer);
 765         }
 766