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 <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 #if defined(NO_RSA) && !defined(NO_SSL2)
  74 #define NO_SSL2
  75 #endif
  76
  77 #undef PROG
  78 #define PROG    s_client_main
  79
  80 /*#define SSL_HOST_NAME "www.netscape.com" */
  81 /*#define SSL_HOST_NAME "193.118.187.102" */
  82 #define SSL_HOST_NAME   "localhost"
  83
  84 /*#define TEST_CERT "client.pem" */ /* no default cert. */
  85
  86 #undef BUFSIZZ
  87 #define BUFSIZZ 1024*8
  88
  89 extern int verify_depth;
  90 extern int verify_error;
  91
  92 #ifdef FIONBIO
  93 static int c_nbio=0;
  94 #endif
  95 static int c_Pause=0;
  96 static int c_debug=0;
  97 static int c_showcerts=0;
  98
  99 static void sc_usage(void);
 100 static void print_stuff(BIO *berr,SSL *con,int full);
 101 static BIO *bio_c_out=NULL;
 102 static int c_quiet=0;
 103
 104 static void sc_usage(void)
 105         {
 106         BIO_printf(bio_err,"usage: s_client args\n");
 107         BIO_printf(bio_err,"\n");
 108         BIO_printf(bio_err," -host host     - use -connect instead\n");
 109         BIO_printf(bio_err," -port port     - use -connect instead\n");
 110         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
 111
 112         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 113         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 114         BIO_printf(bio_err," -key arg      - Private key file to use, PEM format assumed, in cert file if\n");
 115         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 116         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 117         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 118         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 119         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 120         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\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(int argc, char **argv)
 139         {
 140         int off=0;
 141         SSL *con=NULL,*con2=NULL;
 142         int s,k,width,state=0;
 143         char *cbuf=NULL,*sbuf=NULL;
 144         int cbuf_len,cbuf_off;
 145         int sbuf_len,sbuf_off;
 146         fd_set readfds,writefds;
 147         short port=PORT;
 148         int full_log=1;
 149         char *host=SSL_HOST_NAME;
 150         char *cert_file=NULL,*key_file=NULL;
 151         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 152         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 153         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 154         SSL_CTX *ctx=NULL;
 155         int ret=1,in_init=1,i,nbio_test=0;
 156         SSL_METHOD *meth=NULL;
 157         BIO *sbio;
 158         /*static struct timeval timeout={10,0};*/
 159
 160 #if !defined(NO_SSL2) && !defined(NO_SSL3)
 161         meth=SSLv23_client_method();
 162 #elif !defined(NO_SSL3)
 163         meth=SSLv3_client_method();
 164 #elif !defined(NO_SSL2)
 165         meth=SSLv2_client_method();
 166 #endif
 167
 168         apps_startup();
 169         c_Pause=0;
 170         c_quiet=0;
 171         c_debug=0;
 172         c_showcerts=0;
 173
 174         if (bio_err == NULL)
 175                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 176
 177         if (    ((cbuf=Malloc(BUFSIZZ)) == NULL) ||
 178                 ((sbuf=Malloc(BUFSIZZ)) == NULL))
 179                 {
 180                 BIO_printf(bio_err,"out of memory\n");
 181                 goto end;
 182                 }
 183
 184         verify_depth=0;
 185         verify_error=X509_V_OK;
 186 #ifdef FIONBIO
 187         c_nbio=0;
 188 #endif
 189
 190         argc--;
 191         argv++;
 192         while (argc >= 1)
 193                 {
 194                 if      (strcmp(*argv,"-host") == 0)
 195                         {
 196                         if (--argc < 1) goto bad;
 197                         host= *(++argv);
 198                         }
 199                 else if (strcmp(*argv,"-port") == 0)
 200                         {
 201                         if (--argc < 1) goto bad;
 202                         port=atoi(*(++argv));
 203                         if (port == 0) goto bad;
 204                         }
 205                 else if (strcmp(*argv,"-connect") == 0)
 206                         {
 207                         if (--argc < 1) goto bad;
 208                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 209                                 goto bad;
 210                         }
 211                 else if (strcmp(*argv,"-verify") == 0)
 212                         {
 213                         verify=SSL_VERIFY_PEER;
 214                         if (--argc < 1) goto bad;
 215                         verify_depth=atoi(*(++argv));
 216                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 217                         }
 218                 else if (strcmp(*argv,"-cert") == 0)
 219                         {
 220                         if (--argc < 1) goto bad;
 221                         cert_file= *(++argv);
 222                         }
 223                 else if (strcmp(*argv,"-quiet") == 0)
 224                         c_quiet=1;
 225                 else if (strcmp(*argv,"-pause") == 0)
 226                         c_Pause=1;
 227                 else if (strcmp(*argv,"-debug") == 0)
 228                         c_debug=1;
 229                 else if (strcmp(*argv,"-showcerts") == 0)
 230                         c_showcerts=1;
 231                 else if (strcmp(*argv,"-nbio_test") == 0)
 232                         nbio_test=1;
 233                 else if (strcmp(*argv,"-state") == 0)
 234                         state=1;
 235 #ifndef NO_SSL2
 236                 else if (strcmp(*argv,"-ssl2") == 0)
 237                         meth=SSLv2_client_method();
 238 #endif
 239 #ifndef NO_SSL3
 240                 else if (strcmp(*argv,"-ssl3") == 0)
 241                         meth=SSLv3_client_method();
 242 #endif
 243 #ifndef NO_TLS1
 244                 else if (strcmp(*argv,"-tls1") == 0)
 245                         meth=TLSv1_client_method();
 246 #endif
 247                 else if (strcmp(*argv,"-bugs") == 0)
 248                         bugs=1;
 249                 else if (strcmp(*argv,"-key") == 0)
 250                         {
 251                         if (--argc < 1) goto bad;
 252                         key_file= *(++argv);
 253                         }
 254                 else if (strcmp(*argv,"-reconnect") == 0)
 255                         {
 256                         reconnect=5;
 257                         }
 258                 else if (strcmp(*argv,"-CApath") == 0)
 259                         {
 260                         if (--argc < 1) goto bad;
 261                         CApath= *(++argv);
 262                         }
 263                 else if (strcmp(*argv,"-CAfile") == 0)
 264                         {
 265                         if (--argc < 1) goto bad;
 266                         CAfile= *(++argv);
 267                         }
 268                 else if (strcmp(*argv,"-no_tls1") == 0)
 269                         off|=SSL_OP_NO_TLSv1;
 270                 else if (strcmp(*argv,"-no_ssl3") == 0)
 271                         off|=SSL_OP_NO_SSLv3;
 272                 else if (strcmp(*argv,"-no_ssl2") == 0)
 273                         off|=SSL_OP_NO_SSLv2;
 274                 else if (strcmp(*argv,"-cipher") == 0)
 275                         {
 276                         if (--argc < 1) goto bad;
 277                         cipher= *(++argv);
 278                         }
 279 #ifdef FIONBIO
 280                 else if (strcmp(*argv,"-nbio") == 0)
 281                         { c_nbio=1; }
 282 #endif
 283                 else
 284                         {
 285                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 286                         badop=1;
 287                         break;
 288                         }
 289                 argc--;
 290                 argv++;
 291                 }
 292         if (badop)
 293                 {
 294 bad:
 295                 sc_usage();
 296                 goto end;
 297                 }
 298
 299         if (bio_c_out == NULL)
 300                 {
 301                 if (c_quiet)
 302                         {
 303                         bio_c_out=BIO_new(BIO_s_null());
 304                         }
 305                 else
 306                         {
 307                         if (bio_c_out == NULL)
 308                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 309                         }
 310                 }
 311
 312         SSLeay_add_ssl_algorithms();
 313         ctx=SSL_CTX_new(meth);
 314         if (ctx == NULL)
 315                 {
 316                 ERR_print_errors(bio_err);
 317                 goto end;
 318                 }
 319
 320         if (bugs)
 321                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
 322         else
 323                 SSL_CTX_set_options(ctx,off);
 324
 325         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 326         if (cipher != NULL)
 327                 SSL_CTX_set_cipher_list(ctx,cipher);
 328 #if 0
 329         else
 330                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
 331 #endif
 332
 333         SSL_CTX_set_verify(ctx,verify,verify_callback);
 334         if (!set_cert_stuff(ctx,cert_file,key_file))
 335                 goto end;
 336
 337         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 338                 (!SSL_CTX_set_default_verify_paths(ctx)))
 339                 {
 340                 /* BIO_printf(bio_err,"error seting default verify locations\n"); */
 341                 ERR_print_errors(bio_err);
 342                 /* goto end; */
 343                 }
 344
 345         SSL_load_error_strings();
 346
 347         con=(SSL *)SSL_new(ctx);
 348 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
 349
 350 re_start:
 351
 352         if (init_client(&s,host,port) == 0)
 353                 {
 354                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
 355                 SHUTDOWN(s);
 356                 goto end;
 357                 }
 358         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
 359
 360 #ifdef FIONBIO
 361         if (c_nbio)
 362                 {
 363                 unsigned long l=1;
 364                 BIO_printf(bio_c_out,"turning on non blocking io\n");
 365                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
 366                         {
 367                         ERR_print_errors(bio_err);
 368                         goto end;
 369                         }
 370                 }
 371 #endif
 372         if (c_Pause & 0x01) con->debug=1;
 373         sbio=BIO_new_socket(s,BIO_NOCLOSE);
 374
 375         if (nbio_test)
 376                 {
 377                 BIO *test;
 378
 379                 test=BIO_new(BIO_f_nbio_test());
 380                 sbio=BIO_push(test,sbio);
 381                 }
 382
 383         if (c_debug)
 384                 {
 385                 con->debug=1;
 386                 BIO_set_callback(sbio,bio_dump_cb);
 387                 BIO_set_callback_arg(sbio,bio_c_out);
 388                 }
 389
 390         SSL_set_bio(con,sbio,sbio);
 391         SSL_set_connect_state(con);
 392
 393         /* ok, lets connect */
 394         width=SSL_get_fd(con)+1;
 395
 396         read_tty=1;
 397         write_tty=0;
 398         tty_on=0;
 399         read_ssl=1;
 400         write_ssl=1;
 401
 402         cbuf_len=0;
 403         cbuf_off=0;
 404         sbuf_len=0;
 405         sbuf_off=0;
 406
 407         for (;;)
 408                 {
 409                 FD_ZERO(&readfds);
 410                 FD_ZERO(&writefds);
 411
 412                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
 413                         {
 414                         in_init=1;
 415                         tty_on=0;
 416                         }
 417                 else
 418                         {
 419                         tty_on=1;
 420                         if (in_init)
 421                                 {
 422                                 in_init=0;
 423                                 print_stuff(bio_c_out,con,full_log);
 424                                 if (full_log > 0) full_log--;
 425
 426                                 if (reconnect)
 427                                         {
 428                                         reconnect--;
 429                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
 430                                         SSL_shutdown(con);
 431                                         SSL_set_connect_state(con);
 432                                         SHUTDOWN(SSL_get_fd(con));
 433                                         goto re_start;
 434                                         }
 435                                 }
 436                         }
 437
 438                 ssl_pending = read_ssl && SSL_pending(con);
 439
 440                 if (!ssl_pending)
 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
 467                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
 468                         {
 469                         k=SSL_write(con,&(cbuf[cbuf_off]),
 470                                 (unsigned int)cbuf_len);
 471                         switch (SSL_get_error(con,k))
 472                                 {
 473                         case SSL_ERROR_NONE:
 474                                 cbuf_off+=k;
 475                                 cbuf_len-=k;
 476                                 if (k <= 0) goto end;
 477                                 /* we have done a  write(con,NULL,0); */
 478                                 if (cbuf_len <= 0)
 479                                         {
 480                                         read_tty=1;
 481                                         write_ssl=0;
 482                                         }
 483                                 else /* if (cbuf_len > 0) */
 484                                         {
 485                                         read_tty=0;
 486                                         write_ssl=1;
 487                                         }
 488                                 break;
 489                         case SSL_ERROR_WANT_WRITE:
 490                                 BIO_printf(bio_c_out,"write W BLOCK\n");
 491                                 write_ssl=1;
 492                                 read_tty=0;
 493                                 break;
 494                         case SSL_ERROR_WANT_READ:
 495                                 BIO_printf(bio_c_out,"write R BLOCK\n");
 496                                 write_tty=0;
 497                                 read_ssl=1;
 498                                 write_ssl=0;
 499                                 break;
 500                         case SSL_ERROR_WANT_X509_LOOKUP:
 501                                 BIO_printf(bio_c_out,"write X BLOCK\n");
 502                                 break;
 503                         case SSL_ERROR_ZERO_RETURN:
 504                                 if (cbuf_len != 0)
 505                                         {
 506                                         BIO_printf(bio_c_out,"shutdown\n");
 507                                         goto shut;
 508                                         }
 509                                 else
 510                                         {
 511                                         read_tty=1;
 512                                         write_ssl=0;
 513                                         break;
 514                                         }
 515
 516                         case SSL_ERROR_SYSCALL:
 517                                 if ((k != 0) || (cbuf_len != 0))
 518                                         {
 519                                         BIO_printf(bio_err,"write:errno=%d\n",
 520                                                 get_last_socket_error());
 521                                         goto shut;
 522                                         }
 523                                 else
 524                                         {
 525                                         read_tty=1;
 526                                         write_ssl=0;
 527                                         }
 528                                 break;
 529                         case SSL_ERROR_SSL:
 530                                 ERR_print_errors(bio_err);
 531                                 goto shut;
 532                                 }
 533                         }
 534 #ifndef WINDOWS
 535                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
 536                         {
 537                         i=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len);
 538
 539                         if (i <= 0)
 540                                 {
 541                                 BIO_printf(bio_c_out,"DONE\n");
 542                                 goto shut;
 543                                 /* goto end; */
 544                                 }
 545
 546                         sbuf_len-=i;;
 547                         sbuf_off+=i;
 548                         if (sbuf_len <= 0)
 549                                 {
 550                                 read_ssl=1;
 551                                 write_tty=0;
 552                                 }
 553                         }
 554 #endif
 555                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
 556                         {
 557 #ifdef RENEG
 558 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
 559 #endif
 560 #if 1
 561                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
 562 #else
 563 /* Demo for pending and peek :-) */
 564                         k=SSL_read(con,sbuf,16);
 565 { char zbuf[10240];
 566 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
 567 }
 568 #endif
 569
 570                         switch (SSL_get_error(con,k))
 571                                 {
 572                         case SSL_ERROR_NONE:
 573                                 if (k <= 0)
 574                                         goto end;
 575                                 sbuf_off=0;
 576                                 sbuf_len=k;
 577
 578                                 read_ssl=0;
 579                                 write_tty=1;
 580                                 break;
 581                         case SSL_ERROR_WANT_WRITE:
 582                                 BIO_printf(bio_c_out,"read W BLOCK\n");
 583                                 write_ssl=1;
 584                                 read_tty=0;
 585                                 break;
 586                         case SSL_ERROR_WANT_READ:
 587                                 BIO_printf(bio_c_out,"read R BLOCK\n");
 588                                 write_tty=0;
 589                                 read_ssl=1;
 590                                 if ((read_tty == 0) && (write_ssl == 0))
 591                                         write_ssl=1;
 592                                 break;
 593                         case SSL_ERROR_WANT_X509_LOOKUP:
 594                                 BIO_printf(bio_c_out,"read X BLOCK\n");
 595                                 break;
 596                         case SSL_ERROR_SYSCALL:
 597                                 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
 598                                 goto shut;
 599                         case SSL_ERROR_ZERO_RETURN:
 600                                 BIO_printf(bio_c_out,"closed\n");
 601                                 goto shut;
 602                         case SSL_ERROR_SSL:
 603                                 ERR_print_errors(bio_err);
 604                                 goto shut;
 605                                 /* break; */
 606                                 }
 607                         }
 608
 609 #ifndef WINDOWS
 610                 else if (FD_ISSET(fileno(stdin),&readfds))
 611                         {
 612                         i=read(fileno(stdin),cbuf,BUFSIZZ);
 613
 614                         if ((!c_quiet) && ((i <= 0) || (cbuf[0] == 'Q')))
 615                                 {
 616                                 BIO_printf(bio_err,"DONE\n");
 617                                 goto shut;
 618                                 }
 619
 620                         if ((!c_quiet) && (cbuf[0] == 'R'))
 621                                 {
 622                                 BIO_printf(bio_err,"RENEGOTIATING\n");
 623                                 SSL_renegotiate(con);
 624                                 cbuf_len=0;
 625                                 }
 626                         else
 627                                 {
 628                                 cbuf_len=i;
 629                                 cbuf_off=0;
 630                                 }
 631
 632                         write_ssl=1;
 633                         read_tty=0;
 634                         }
 635 #endif
 636                 }
 637 shut:
 638         SSL_shutdown(con);
 639         SHUTDOWN(SSL_get_fd(con));
 640         ret=0;
 641 end:
 642         if (con != NULL) SSL_free(con);
 643         if (con2 != NULL) SSL_free(con2);
 644         if (ctx != NULL) SSL_CTX_free(ctx);
 645         if (cbuf != NULL) { memset(cbuf,0,BUFSIZZ); Free(cbuf); }
 646         if (sbuf != NULL) { memset(sbuf,0,BUFSIZZ); Free(sbuf); }
 647         if (bio_c_out != NULL)
 648                 {
 649                 BIO_free(bio_c_out);
 650                 bio_c_out=NULL;
 651                 }
 652         EXIT(ret);
 653         }
 654
 655
 656 static void print_stuff(BIO *bio, SSL *s, int full)
 657         {
 658         X509 *peer=NULL;
 659         char *p;
 660         static char *space="                ";
 661         char buf[BUFSIZ];
 662         STACK_OF(X509) *sk;
 663         STACK_OF(X509_NAME) *sk2;
 664         SSL_CIPHER *c;
 665         X509_NAME *xn;
 666         int j,i;
 667
 668         if (full)
 669                 {
 670                 sk=SSL_get_peer_cert_chain(s);
 671                 if (sk != NULL)
 672                         {
 673                         BIO_printf(bio,"---\nCertificate chain\n");
 674                         for (i=0; i<sk_X509_num(sk); i++)
 675                                 {
 676                                 X509_NAME_oneline(X509_get_subject_name(
 677                                         sk_X509_value(sk,i)),buf,BUFSIZ);
 678                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
 679                                 X509_NAME_oneline(X509_get_issuer_name(
 680                                         sk_X509_value(sk,i)),buf,BUFSIZ);
 681                                 BIO_printf(bio,"   i:%s\n",buf);
 682                                 if (c_showcerts)
 683                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
 684                                 }
 685                         }
 686
 687                 BIO_printf(bio,"---\n");
 688                 peer=SSL_get_peer_certificate(s);
 689                 if (peer != NULL)
 690                         {
 691                         BIO_printf(bio,"Server certificate\n");
 692                         if (!c_showcerts) /* Redundant if we showed the whole chain */
 693                                 PEM_write_bio_X509(bio,peer);
 694                         X509_NAME_oneline(X509_get_subject_name(peer),
 695                                 buf,BUFSIZ);
 696                         BIO_printf(bio,"subject=%s\n",buf);
 697                         X509_NAME_oneline(X509_get_issuer_name(peer),
 698                                 buf,BUFSIZ);
 699                         BIO_printf(bio,"issuer=%s\n",buf);
 700                         }
 701                 else
 702                         BIO_printf(bio,"no peer certificate available\n");
 703
 704                 sk2=SSL_get_client_CA_list(s);
 705                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
 706                         {
 707                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
 708                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
 709                                 {
 710                                 xn=sk_X509_NAME_value(sk2,i);
 711                                 X509_NAME_oneline(xn,buf,sizeof(buf));
 712                                 BIO_write(bio,buf,strlen(buf));
 713                                 BIO_write(bio,"\n",1);
 714                                 }
 715                         }
 716                 else
 717                         {
 718                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
 719                         }
 720                 p=SSL_get_shared_ciphers(s,buf,BUFSIZ);
 721                 if (p != NULL)
 722                         {
 723                         /* This works only for SSL 2.  In later protocol
 724                          * versions, the client does not know what other
 725                          * ciphers (in addition to the one to be used
 726                          * in the current connection) the server supports. */
 727
 728                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
 729                         j=i=0;
 730                         while (*p)
 731                                 {
 732                                 if (*p == ':')
 733                                         {
 734                                         BIO_write(bio,space,15-j%25);
 735                                         i++;
 736                                         j=0;
 737                                         BIO_write(bio,((i%3)?" ":"\n"),1);
 738                                         }
 739                                 else
 740                                         {
 741                                         BIO_write(bio,p,1);
 742                                         j++;
 743                                         }
 744                                 p++;
 745                                 }
 746                         BIO_write(bio,"\n",1);
 747                         }
 748
 749                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
 750                         BIO_number_read(SSL_get_rbio(s)),
 751                         BIO_number_written(SSL_get_wbio(s)));
 752                 }
 753         BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
 754         c=SSL_get_current_cipher(s);
 755         BIO_printf(bio,"%s, Cipher is %s\n",
 756                 SSL_CIPHER_get_version(c),
 757                 SSL_CIPHER_get_name(c));
 758         if (peer != NULL) {
 759                 EVP_PKEY *pktmp;
 760                 pktmp = X509_get_pubkey(peer);
 761                 BIO_printf(bio,"Server public key is %d bit\n",
 762                                                          EVP_PKEY_bits(pktmp));
 763                 EVP_PKEY_free(pktmp);
 764         }
 765         SSL_SESSION_print(bio,SSL_get_session(s));
 766         BIO_printf(bio,"---\n");
 767         if (peer != NULL)
 768                 X509_free(peer);
 769         }
 770