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 #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 static void sc_usage(void);
  96 static void print_stuff(BIO *berr,SSL *con,int full);
  97 static BIO *bio_c_out=NULL;
  98 static int c_quiet=0;
  99
 100 static void sc_usage(void)
 101         {
 102         BIO_printf(bio_err,"usage: s_client args\n");
 103         BIO_printf(bio_err,"\n");
 104         BIO_printf(bio_err," -host host     - use -connect instead\n");
 105         BIO_printf(bio_err," -port port     - use -connect instead\n");
 106         BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR);
 107
 108         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 109         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 110         BIO_printf(bio_err," -key arg      - Private key file to use, PEM format assumed, in cert file if\n");
 111         BIO_printf(bio_err,"                 not specified but cert file is.\n");
 112         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 113         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 114         BIO_printf(bio_err," -reconnect    - Drop and re-make the connection with the same Session-ID\n");
 115         BIO_printf(bio_err," -pause        - sleep(1) after each read(2) and write(2) system call\n");
 116         BIO_printf(bio_err," -showcerts    - show all certificates in the chain\n");
 117         BIO_printf(bio_err," -debug        - extra output\n");
 118         BIO_printf(bio_err," -nbio_test    - more ssl protocol testing\n");
 119         BIO_printf(bio_err," -state        - print the 'ssl' states\n");
 120 #ifdef FIONBIO
 121         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 122 #endif
 123         BIO_printf(bio_err," -quiet        - no s_client output\n");
 124         BIO_printf(bio_err," -ssl2         - just use SSLv2\n");
 125         BIO_printf(bio_err," -ssl3         - just use SSLv3\n");
 126         BIO_printf(bio_err," -tls1         - just use TLSv1\n");
 127         BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
 128         BIO_printf(bio_err," -bugs         - Switch on all SSL implementation bug workarounds\n");
 129         BIO_printf(bio_err," -cipher       - prefered cipher to use, use the 'openssl ciphers'\n");
 130         BIO_printf(bio_err,"                 command to see what is available\n");
 131
 132         }
 133
 134 int MAIN(int argc, char **argv)
 135         {
 136         int off=0;
 137         SSL *con=NULL,*con2=NULL;
 138         int s,k,width,state=0;
 139         char *cbuf=NULL,*sbuf=NULL;
 140         int cbuf_len,cbuf_off;
 141         int sbuf_len,sbuf_off;
 142         fd_set readfds,writefds;
 143         short port=PORT;
 144         int full_log=1;
 145         char *host=SSL_HOST_NAME;
 146         char *cert_file=NULL,*key_file=NULL;
 147         char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
 148         int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
 149         int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
 150         SSL_CTX *ctx=NULL;
 151         int ret=1,in_init=1,i,nbio_test=0;
 152         SSL_METHOD *meth=NULL;
 153         BIO *sbio;
 154         /*static struct timeval timeout={10,0};*/
 155
 156 #if !defined(NO_SSL2) && !defined(NO_SSL3)
 157         meth=SSLv23_client_method();
 158 #elif !defined(NO_SSL3)
 159         meth=SSLv3_client_method();
 160 #elif !defined(NO_SSL2)
 161         meth=SSLv2_client_method();
 162 #endif
 163
 164         apps_startup();
 165         c_Pause=0;
 166         c_quiet=0;
 167         c_debug=0;
 168         c_showcerts=0;
 169
 170         if (bio_err == NULL)
 171                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 172
 173         if (    ((cbuf=Malloc(BUFSIZZ)) == NULL) ||
 174                 ((sbuf=Malloc(BUFSIZZ)) == NULL))
 175                 {
 176                 BIO_printf(bio_err,"out of memory\n");
 177                 goto end;
 178                 }
 179
 180         verify_depth=0;
 181         verify_error=X509_V_OK;
 182 #ifdef FIONBIO
 183         c_nbio=0;
 184 #endif
 185
 186         argc--;
 187         argv++;
 188         while (argc >= 1)
 189                 {
 190                 if      (strcmp(*argv,"-host") == 0)
 191                         {
 192                         if (--argc < 1) goto bad;
 193                         host= *(++argv);
 194                         }
 195                 else if (strcmp(*argv,"-port") == 0)
 196                         {
 197                         if (--argc < 1) goto bad;
 198                         port=atoi(*(++argv));
 199                         if (port == 0) goto bad;
 200                         }
 201                 else if (strcmp(*argv,"-connect") == 0)
 202                         {
 203                         if (--argc < 1) goto bad;
 204                         if (!extract_host_port(*(++argv),&host,NULL,&port))
 205                                 goto bad;
 206                         }
 207                 else if (strcmp(*argv,"-verify") == 0)
 208                         {
 209                         verify=SSL_VERIFY_PEER;
 210                         if (--argc < 1) goto bad;
 211                         verify_depth=atoi(*(++argv));
 212                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 213                         }
 214                 else if (strcmp(*argv,"-cert") == 0)
 215                         {
 216                         if (--argc < 1) goto bad;
 217                         cert_file= *(++argv);
 218                         }
 219                 else if (strcmp(*argv,"-quiet") == 0)
 220                         c_quiet=1;
 221                 else if (strcmp(*argv,"-pause") == 0)
 222                         c_Pause=1;
 223                 else if (strcmp(*argv,"-debug") == 0)
 224                         c_debug=1;
 225                 else if (strcmp(*argv,"-showcerts") == 0)
 226                         c_showcerts=1;
 227                 else if (strcmp(*argv,"-nbio_test") == 0)
 228                         nbio_test=1;
 229                 else if (strcmp(*argv,"-state") == 0)
 230                         state=1;
 231 #ifndef NO_SSL2
 232                 else if (strcmp(*argv,"-ssl2") == 0)
 233                         meth=SSLv2_client_method();
 234 #endif
 235 #ifndef NO_SSL3
 236                 else if (strcmp(*argv,"-ssl3") == 0)
 237                         meth=SSLv3_client_method();
 238 #endif
 239 #ifndef NO_TLS1
 240                 else if (strcmp(*argv,"-tls1") == 0)
 241                         meth=TLSv1_client_method();
 242 #endif
 243                 else if (strcmp(*argv,"-bugs") == 0)
 244                         bugs=1;
 245                 else if (strcmp(*argv,"-key") == 0)
 246                         {
 247                         if (--argc < 1) goto bad;
 248                         key_file= *(++argv);
 249                         }
 250                 else if (strcmp(*argv,"-reconnect") == 0)
 251                         {
 252                         reconnect=5;
 253                         }
 254                 else if (strcmp(*argv,"-CApath") == 0)
 255                         {
 256                         if (--argc < 1) goto bad;
 257                         CApath= *(++argv);
 258                         }
 259                 else if (strcmp(*argv,"-CAfile") == 0)
 260                         {
 261                         if (--argc < 1) goto bad;
 262                         CAfile= *(++argv);
 263                         }
 264                 else if (strcmp(*argv,"-no_tls1") == 0)
 265                         off|=SSL_OP_NO_TLSv1;
 266                 else if (strcmp(*argv,"-no_ssl3") == 0)
 267                         off|=SSL_OP_NO_SSLv3;
 268                 else if (strcmp(*argv,"-no_ssl2") == 0)
 269                         off|=SSL_OP_NO_SSLv2;
 270                 else if (strcmp(*argv,"-cipher") == 0)
 271                         {
 272                         if (--argc < 1) goto bad;
 273                         cipher= *(++argv);
 274                         }
 275 #ifdef FIONBIO
 276                 else if (strcmp(*argv,"-nbio") == 0)
 277                         { c_nbio=1; }
 278 #endif
 279                 else
 280                         {
 281                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 282                         badop=1;
 283                         break;
 284                         }
 285                 argc--;
 286                 argv++;
 287                 }
 288         if (badop)
 289                 {
 290 bad:
 291                 sc_usage();
 292                 goto end;
 293                 }
 294
 295         if (bio_c_out == NULL)
 296                 {
 297                 if (c_quiet)
 298                         {
 299                         bio_c_out=BIO_new(BIO_s_null());
 300                         }
 301                 else
 302                         {
 303                         if (bio_c_out == NULL)
 304                                 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 305                         }
 306                 }
 307
 308         SSLeay_add_ssl_algorithms();
 309         ctx=SSL_CTX_new(meth);
 310         if (ctx == NULL)
 311                 {
 312                 ERR_print_errors(bio_err);
 313                 goto end;
 314                 }
 315
 316         if (bugs)
 317                 SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
 318         else
 319                 SSL_CTX_set_options(ctx,off);
 320
 321         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 322         if (cipher != NULL)
 323                 SSL_CTX_set_cipher_list(ctx,cipher);
 324 #if 0
 325         else
 326                 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
 327 #endif
 328
 329         SSL_CTX_set_verify(ctx,verify,verify_callback);
 330         if (!set_cert_stuff(ctx,cert_file,key_file))
 331                 goto end;
 332
 333         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 334                 (!SSL_CTX_set_default_verify_paths(ctx)))
 335                 {
 336                 /* BIO_printf(bio_err,"error seting default verify locations\n"); */
 337                 ERR_print_errors(bio_err);
 338                 /* goto end; */
 339                 }
 340
 341         SSL_load_error_strings();
 342
 343         con=(SSL *)SSL_new(ctx);
 344 /*      SSL_set_cipher_list(con,"RC4-MD5"); */
 345
 346 re_start:
 347
 348         if (init_client(&s,host,port) == 0)
 349                 {
 350                 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
 351                 SHUTDOWN(s);
 352                 goto end;
 353                 }
 354         BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
 355
 356 #ifdef FIONBIO
 357         if (c_nbio)
 358                 {
 359                 unsigned long l=1;
 360                 BIO_printf(bio_c_out,"turning on non blocking io\n");
 361                 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
 362                         {
 363                         ERR_print_errors(bio_err);
 364                         goto end;
 365                         }
 366                 }
 367 #endif
 368         if (c_Pause & 0x01) con->debug=1;
 369         sbio=BIO_new_socket(s,BIO_NOCLOSE);
 370
 371         if (nbio_test)
 372                 {
 373                 BIO *test;
 374
 375                 test=BIO_new(BIO_f_nbio_test());
 376                 sbio=BIO_push(test,sbio);
 377                 }
 378
 379         if (c_debug)
 380                 {
 381                 con->debug=1;
 382                 BIO_set_callback(sbio,bio_dump_cb);
 383                 BIO_set_callback_arg(sbio,bio_c_out);
 384                 }
 385
 386         SSL_set_bio(con,sbio,sbio);
 387         SSL_set_connect_state(con);
 388
 389         /* ok, lets connect */
 390         width=SSL_get_fd(con)+1;
 391
 392         read_tty=1;
 393         write_tty=0;
 394         tty_on=0;
 395         read_ssl=1;
 396         write_ssl=1;
 397
 398         cbuf_len=0;
 399         cbuf_off=0;
 400         sbuf_len=0;
 401         sbuf_off=0;
 402
 403         for (;;)
 404                 {
 405                 FD_ZERO(&readfds);
 406                 FD_ZERO(&writefds);
 407
 408                 if (SSL_in_init(con) && !SSL_total_renegotiations(con))
 409                         {
 410                         in_init=1;
 411                         tty_on=0;
 412                         }
 413                 else
 414                         {
 415                         tty_on=1;
 416                         if (in_init)
 417                                 {
 418                                 in_init=0;
 419                                 print_stuff(bio_c_out,con,full_log);
 420                                 if (full_log > 0) full_log--;
 421
 422                                 if (reconnect)
 423                                         {
 424                                         reconnect--;
 425                                         BIO_printf(bio_c_out,"drop connection and then reconnect\n");
 426                                         SSL_shutdown(con);
 427                                         SSL_set_connect_state(con);
 428                                         SHUTDOWN(SSL_get_fd(con));
 429                                         goto re_start;
 430                                         }
 431                                 }
 432                         }
 433
 434                 ssl_pending = read_ssl && SSL_pending(con);
 435
 436                 if (!ssl_pending)
 437                         {
 438 #ifndef WINDOWS
 439                         if (tty_on)
 440                                 {
 441                                 if (read_tty)  FD_SET(fileno(stdin),&readfds);
 442                                 if (write_tty) FD_SET(fileno(stdout),&writefds);
 443                                 }
 444 #endif
 445                         if (read_ssl)
 446                                 FD_SET(SSL_get_fd(con),&readfds);
 447                         if (write_ssl)
 448                                 FD_SET(SSL_get_fd(con),&writefds);
 449
 450 /*                      printf("mode tty(%d %d%d) ssl(%d%d)\n",
 451                                 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
 452
 453                         i=select(width,&readfds,&writefds,NULL,NULL);
 454                         if ( i < 0)
 455                                 {
 456                                 BIO_printf(bio_err,"bad select %d\n",
 457                                 get_last_socket_error());
 458                                 goto shut;
 459                                 /* goto end; */
 460                                 }
 461                         }
 462
 463                 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
 464                         {
 465                         k=SSL_write(con,&(cbuf[cbuf_off]),
 466                                 (unsigned int)cbuf_len);
 467                         switch (SSL_get_error(con,k))
 468                                 {
 469                         case SSL_ERROR_NONE:
 470                                 cbuf_off+=k;
 471                                 cbuf_len-=k;
 472                                 if (k <= 0) goto end;
 473                                 /* we have done a  write(con,NULL,0); */
 474                                 if (cbuf_len <= 0)
 475                                         {
 476                                         read_tty=1;
 477                                         write_ssl=0;
 478                                         }
 479                                 else /* if (cbuf_len > 0) */
 480                                         {
 481                                         read_tty=0;
 482                                         write_ssl=1;
 483                                         }
 484                                 break;
 485                         case SSL_ERROR_WANT_WRITE:
 486                                 BIO_printf(bio_c_out,"write W BLOCK\n");
 487                                 write_ssl=1;
 488                                 read_tty=0;
 489                                 break;
 490                         case SSL_ERROR_WANT_READ:
 491                                 BIO_printf(bio_c_out,"write R BLOCK\n");
 492                                 write_tty=0;
 493                                 read_ssl=1;
 494                                 write_ssl=0;
 495                                 break;
 496                         case SSL_ERROR_WANT_X509_LOOKUP:
 497                                 BIO_printf(bio_c_out,"write X BLOCK\n");
 498                                 break;
 499                         case SSL_ERROR_ZERO_RETURN:
 500                                 if (cbuf_len != 0)
 501                                         {
 502                                         BIO_printf(bio_c_out,"shutdown\n");
 503                                         goto shut;
 504                                         }
 505                                 else
 506                                         {
 507                                         read_tty=1;
 508                                         write_ssl=0;
 509                                         break;
 510                                         }
 511
 512                         case SSL_ERROR_SYSCALL:
 513                                 if ((k != 0) || (cbuf_len != 0))
 514                                         {
 515                                         BIO_printf(bio_err,"write:errno=%d\n",
 516                                                 get_last_socket_error());
 517                                         goto shut;
 518                                         }
 519                                 else
 520                                         {
 521                                         read_tty=1;
 522                                         write_ssl=0;
 523                                         }
 524                                 break;
 525                         case SSL_ERROR_SSL:
 526                                 ERR_print_errors(bio_err);
 527                                 goto shut;
 528                                 }
 529                         }
 530 #ifndef WINDOWS
 531                 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
 532                         {
 533                         i=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len);
 534
 535                         if (i <= 0)
 536                                 {
 537                                 BIO_printf(bio_c_out,"DONE\n");
 538                                 goto shut;
 539                                 /* goto end; */
 540                                 }
 541
 542                         sbuf_len-=i;;
 543                         sbuf_off+=i;
 544                         if (sbuf_len <= 0)
 545                                 {
 546                                 read_ssl=1;
 547                                 write_tty=0;
 548                                 }
 549                         }
 550 #endif
 551                 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
 552                         {
 553 #ifdef RENEG
 554 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
 555 #endif
 556 #if 1
 557                         k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
 558 #else
 559 /* Demo for pending and peek :-) */
 560                         k=SSL_read(con,sbuf,16);
 561 { char zbuf[10240];
 562 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
 563 }
 564 #endif
 565
 566                         switch (SSL_get_error(con,k))
 567                                 {
 568                         case SSL_ERROR_NONE:
 569                                 if (k <= 0)
 570                                         goto end;
 571                                 sbuf_off=0;
 572                                 sbuf_len=k;
 573
 574                                 read_ssl=0;
 575                                 write_tty=1;
 576                                 break;
 577                         case SSL_ERROR_WANT_WRITE:
 578                                 BIO_printf(bio_c_out,"read W BLOCK\n");
 579                                 write_ssl=1;
 580                                 read_tty=0;
 581                                 break;
 582                         case SSL_ERROR_WANT_READ:
 583                                 BIO_printf(bio_c_out,"read R BLOCK\n");
 584                                 write_tty=0;
 585                                 read_ssl=1;
 586                                 if ((read_tty == 0) && (write_ssl == 0))
 587                                         write_ssl=1;
 588                                 break;
 589                         case SSL_ERROR_WANT_X509_LOOKUP:
 590                                 BIO_printf(bio_c_out,"read X BLOCK\n");
 591                                 break;
 592                         case SSL_ERROR_SYSCALL:
 593                                 BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
 594                                 goto shut;
 595                         case SSL_ERROR_ZERO_RETURN:
 596                                 BIO_printf(bio_c_out,"closed\n");
 597                                 goto shut;
 598                         case SSL_ERROR_SSL:
 599                                 ERR_print_errors(bio_err);
 600                                 goto shut;
 601                                 /* break; */
 602                                 }
 603                         }
 604
 605 #ifndef WINDOWS
 606                 else if (FD_ISSET(fileno(stdin),&readfds))
 607                         {
 608                         i=read(fileno(stdin),cbuf,BUFSIZZ);
 609
 610                         if ((!c_quiet) && ((i <= 0) || (cbuf[0] == 'Q')))
 611                                 {
 612                                 BIO_printf(bio_err,"DONE\n");
 613                                 goto shut;
 614                                 }
 615
 616                         if ((!c_quiet) && (cbuf[0] == 'R'))
 617                                 {
 618                                 BIO_printf(bio_err,"RENEGOTIATING\n");
 619                                 SSL_renegotiate(con);
 620                                 cbuf_len=0;
 621                                 }
 622                         else
 623                                 {
 624                                 cbuf_len=i;
 625                                 cbuf_off=0;
 626                                 }
 627
 628                         write_ssl=1;
 629                         read_tty=0;
 630                         }
 631 #endif
 632                 }
 633 shut:
 634         SSL_shutdown(con);
 635         SHUTDOWN(SSL_get_fd(con));
 636         ret=0;
 637 end:
 638         if (con != NULL) SSL_free(con);
 639         if (con2 != NULL) SSL_free(con2);
 640         if (ctx != NULL) SSL_CTX_free(ctx);
 641         if (cbuf != NULL) { memset(cbuf,0,BUFSIZZ); Free(cbuf); }
 642         if (sbuf != NULL) { memset(sbuf,0,BUFSIZZ); Free(sbuf); }
 643         if (bio_c_out != NULL)
 644                 {
 645                 BIO_free(bio_c_out);
 646                 bio_c_out=NULL;
 647                 }
 648         EXIT(ret);
 649         }
 650
 651
 652 static void print_stuff(BIO *bio, SSL *s, int full)
 653         {
 654         X509 *peer=NULL;
 655         char *p;
 656         static char *space="                ";
 657         char buf[BUFSIZ];
 658         STACK_OF(X509) *sk;
 659         STACK_OF(X509_NAME) *sk2;
 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_X509_num(sk); i++)
 671                                 {
 672                                 X509_NAME_oneline(X509_get_subject_name(
 673                                         sk_X509_value(sk,i)),buf,BUFSIZ);
 674                                 BIO_printf(bio,"%2d s:%s\n",i,buf);
 675                                 X509_NAME_oneline(X509_get_issuer_name(
 676                                         sk_X509_value(sk,i)),buf,BUFSIZ);
 677                                 BIO_printf(bio,"   i:%s\n",buf);
 678                                 if (c_showcerts)
 679                                         PEM_write_bio_X509(bio,sk_X509_value(sk,i));
 680                                 }
 681                         }
 682
 683                 BIO_printf(bio,"---\n");
 684                 peer=SSL_get_peer_certificate(s);
 685                 if (peer != NULL)
 686                         {
 687                         BIO_printf(bio,"Server certificate\n");
 688                         if (!c_showcerts) /* Redundant if we showed the whole chain */
 689                                 PEM_write_bio_X509(bio,peer);
 690                         X509_NAME_oneline(X509_get_subject_name(peer),
 691                                 buf,BUFSIZ);
 692                         BIO_printf(bio,"subject=%s\n",buf);
 693                         X509_NAME_oneline(X509_get_issuer_name(peer),
 694                                 buf,BUFSIZ);
 695                         BIO_printf(bio,"issuer=%s\n",buf);
 696                         }
 697                 else
 698                         BIO_printf(bio,"no peer certificate available\n");
 699
 700                 sk2=SSL_get_client_CA_list(s);
 701                 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0))
 702                         {
 703                         BIO_printf(bio,"---\nAcceptable client certificate CA names\n");
 704                         for (i=0; i<sk_X509_NAME_num(sk2); i++)
 705                                 {
 706                                 xn=sk_X509_NAME_value(sk2,i);
 707                                 X509_NAME_oneline(xn,buf,sizeof(buf));
 708                                 BIO_write(bio,buf,strlen(buf));
 709                                 BIO_write(bio,"\n",1);
 710                                 }
 711                         }
 712                 else
 713                         {
 714                         BIO_printf(bio,"---\nNo client certificate CA names sent\n");
 715                         }
 716                 p=SSL_get_shared_ciphers(s,buf,BUFSIZ);
 717                 if (p != NULL)
 718                         {
 719                         BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n");
 720                         j=i=0;
 721                         while (*p)
 722                                 {
 723                                 if (*p == ':')
 724                                         {
 725                                         BIO_write(bio,space,15-j%25);
 726                                         i++;
 727                                         j=0;
 728                                         BIO_write(bio,((i%3)?" ":"\n"),1);
 729                                         }
 730                                 else
 731                                         {
 732                                         BIO_write(bio,p,1);
 733                                         j++;
 734                                         }
 735                                 p++;
 736                                 }
 737                         BIO_write(bio,"\n",1);
 738                         }
 739
 740                 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n",
 741                         BIO_number_read(SSL_get_rbio(s)),
 742                         BIO_number_written(SSL_get_wbio(s)));
 743                 }
 744         BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, "));
 745         c=SSL_get_current_cipher(s);
 746         BIO_printf(bio,"%s, Cipher is %s\n",
 747                 SSL_CIPHER_get_version(c),
 748                 SSL_CIPHER_get_name(c));
 749         if (peer != NULL) {
 750                 EVP_PKEY *pktmp;
 751                 pktmp = X509_get_pubkey(peer);
 752                 BIO_printf(bio,"Server public key is %d bit\n",
 753                                                          EVP_PKEY_bits(pktmp));
 754                 EVP_PKEY_free(pktmp);
 755         }
 756         SSL_SESSION_print(bio,SSL_get_session(s));
 757         BIO_printf(bio,"---\n");
 758         if (peer != NULL)
 759                 X509_free(peer);
 760         }
 761