ssl/ssltest.c

   1 /* ssl/ssltest.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 #include <errno.h>
  63 #include "e_os.h"
  64 #include "bio.h"
  65 #include "crypto.h"
  66 #include "x509.h"
  67 #include "ssl.h"
  68 #include "err.h"
  69 #ifdef WINDOWS
  70 #include "../crypto/bio/bss_file.c"
  71 #endif
  72
  73 #define TEST_SERVER_CERT "../apps/server.pem"
  74 #define TEST_CLIENT_CERT "../apps/client.pem"
  75
  76 #ifndef NOPROTO
  77 int MS_CALLBACK verify_callback(int ok, X509_STORE_CTX *ctx);
  78 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int export);
  79 #ifndef NO_DSA
  80 static DH *get_dh512(void);
  81 #endif
  82 #else
  83 int MS_CALLBACK verify_callback();
  84 static RSA MS_CALLBACK *tmp_rsa_cb();
  85 #ifndef NO_DSA
  86 static DH *get_dh512();
  87 #endif
  88 #endif
  89
  90 BIO *bio_err=NULL;
  91 BIO *bio_stdout=NULL;
  92
  93 static char *cipher=NULL;
  94 int verbose=0;
  95 int debug=0;
  96 #ifdef FIONBIO
  97 static int s_nbio=0;
  98 #endif
  99
 100
 101 #ifndef  NOPROTO
 102 int doit(SSL *s_ssl,SSL *c_ssl,long bytes);
 103 #else
 104 int doit();
 105 #endif
 106
 107 static void sv_usage()
 108         {
 109         fprintf(stderr,"usage: ssltest [args ...]\n");
 110         fprintf(stderr,"\n");
 111         fprintf(stderr," -server_auth  - check server certificate\n");
 112         fprintf(stderr," -client_auth  - do client authentication\n");
 113         fprintf(stderr," -v            - more output\n");
 114         fprintf(stderr," -d            - debug output\n");
 115         fprintf(stderr," -reuse        - use session-id reuse\n");
 116         fprintf(stderr," -num <val>    - number of connections to perform\n");
 117         fprintf(stderr," -bytes <val>  - number of bytes to swap between client/server\n");
 118 #ifndef NO_SSL2
 119         fprintf(stderr," -ssl2         - use SSLv2\n");
 120 #endif
 121 #ifndef NO_SSL3
 122         fprintf(stderr," -ssl3         - use SSLv3\n");
 123 #endif
 124 #ifndef NO_TLS1
 125         fprintf(stderr," -tls1         - use TLSv1\n");
 126 #endif
 127         fprintf(stderr," -CApath arg   - PEM format directory of CA's\n");
 128         fprintf(stderr," -CAfile arg   - PEM format file of CA's\n");
 129         fprintf(stderr," -cert arg     - Certificate file\n");
 130         fprintf(stderr," -s_cert arg   - Just the server certificate file\n");
 131         fprintf(stderr," -c_cert arg   - Just the client certificate file\n");
 132         fprintf(stderr," -cipher arg   - The cipher list\n");
 133         }
 134
 135 int main(argc, argv)
 136 int argc;
 137 char *argv[];
 138         {
 139         char *CApath=NULL,*CAfile=NULL;
 140         int badop=0;
 141         int tls1=0,ssl2=0,ssl3=0,ret=1;
 142         int client_auth=0;
 143         int server_auth=0,i;
 144         char *server_cert=TEST_SERVER_CERT;
 145         char *client_cert=TEST_CLIENT_CERT;
 146         SSL_CTX *s_ctx=NULL;
 147         SSL_CTX *c_ctx=NULL;
 148         SSL_METHOD *meth=NULL;
 149         SSL *c_ssl,*s_ssl;
 150         int number=1,reuse=0;
 151         long bytes=1L;
 152         SSL_CIPHER *ciph;
 153 #ifndef NO_DH
 154         DH *dh;
 155 #endif
 156
 157         bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 158         bio_stdout=BIO_new_fp(stdout,BIO_NOCLOSE);
 159
 160         CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
 161
 162         argc--;
 163         argv++;
 164
 165         while (argc >= 1)
 166                 {
 167                 if      (strcmp(*argv,"-server_auth") == 0)
 168                         server_auth=1;
 169                 else if (strcmp(*argv,"-client_auth") == 0)
 170                         client_auth=1;
 171                 else if (strcmp(*argv,"-v") == 0)
 172                         verbose=1;
 173                 else if (strcmp(*argv,"-d") == 0)
 174                         debug=1;
 175                 else if (strcmp(*argv,"-reuse") == 0)
 176                         reuse=1;
 177                 else if (strcmp(*argv,"-ssl2") == 0)
 178                         ssl2=1;
 179                 else if (strcmp(*argv,"-tls1") == 0)
 180                         tls1=1;
 181                 else if (strcmp(*argv,"-ssl3") == 0)
 182                         ssl3=1;
 183                 else if (strncmp(*argv,"-num",4) == 0)
 184                         {
 185                         if (--argc < 1) goto bad;
 186                         number= atoi(*(++argv));
 187                         if (number == 0) number=1;
 188                         }
 189                 else if (strcmp(*argv,"-bytes") == 0)
 190                         {
 191                         if (--argc < 1) goto bad;
 192                         bytes= atol(*(++argv));
 193                         if (bytes == 0L) bytes=1L;
 194                         i=strlen(argv[0]);
 195                         if (argv[0][i-1] == 'k') bytes*=1024L;
 196                         if (argv[0][i-1] == 'm') bytes*=1024L*1024L;
 197                         }
 198                 else if (strcmp(*argv,"-cert") == 0)
 199                         {
 200                         if (--argc < 1) goto bad;
 201                         server_cert= *(++argv);
 202                         }
 203                 else if (strcmp(*argv,"-s_cert") == 0)
 204                         {
 205                         if (--argc < 1) goto bad;
 206                         server_cert= *(++argv);
 207                         }
 208                 else if (strcmp(*argv,"-c_cert") == 0)
 209                         {
 210                         if (--argc < 1) goto bad;
 211                         client_cert= *(++argv);
 212                         }
 213                 else if (strcmp(*argv,"-cipher") == 0)
 214                         {
 215                         if (--argc < 1) goto bad;
 216                         cipher= *(++argv);
 217                         }
 218                 else if (strcmp(*argv,"-CApath") == 0)
 219                         {
 220                         if (--argc < 1) goto bad;
 221                         CApath= *(++argv);
 222                         }
 223                 else if (strcmp(*argv,"-CAfile") == 0)
 224                         {
 225                         if (--argc < 1) goto bad;
 226                         CAfile= *(++argv);
 227                         }
 228                 else
 229                         {
 230                         fprintf(stderr,"unknown option %s\n",*argv);
 231                         badop=1;
 232                         break;
 233                         }
 234                 argc--;
 235                 argv++;
 236                 }
 237         if (badop)
 238                 {
 239 bad:
 240                 sv_usage();
 241                 goto end;
 242                 }
 243
 244 /*      if (cipher == NULL) cipher=getenv("SSL_CIPHER"); */
 245
 246         SSLeay_add_ssl_algorithms();
 247         SSL_load_error_strings();
 248
 249 #if !defined(NO_SSL2) && !defined(NO_SSL3)
 250         if (ssl2)
 251                 meth=SSLv2_method();
 252         else
 253         if (tls1)
 254                 meth=TLSv1_method();
 255         else
 256         if (ssl3)
 257                 meth=SSLv3_method();
 258         else
 259                 meth=SSLv23_method();
 260 #else
 261 #ifdef NO_SSL2
 262         meth=SSLv3_method();
 263 #else
 264         meth=SSLv2_method();
 265 #endif
 266 #endif
 267
 268         c_ctx=SSL_CTX_new(meth);
 269         s_ctx=SSL_CTX_new(meth);
 270         if ((c_ctx == NULL) || (s_ctx == NULL))
 271                 {
 272                 ERR_print_errors(bio_err);
 273                 goto end;
 274                 }
 275
 276         if (cipher != NULL)
 277                 {
 278                 SSL_CTX_set_cipher_list(c_ctx,cipher);
 279                 SSL_CTX_set_cipher_list(s_ctx,cipher);
 280                 }
 281
 282 #ifndef NO_DH
 283         dh=get_dh512();
 284         SSL_CTX_set_tmp_dh(s_ctx,dh);
 285         DH_free(dh);
 286 #endif
 287
 288 #ifndef NO_RSA
 289         SSL_CTX_set_tmp_rsa_callback(s_ctx,tmp_rsa_cb);
 290 #endif
 291
 292         if (!SSL_CTX_use_certificate_file(s_ctx,server_cert,SSL_FILETYPE_PEM))
 293                 {
 294                 ERR_print_errors(bio_err);
 295                 }
 296         else if (!SSL_CTX_use_PrivateKey_file(s_ctx,server_cert,
 297                 SSL_FILETYPE_PEM))
 298                 {
 299                 ERR_print_errors(bio_err);
 300                 goto end;
 301                 }
 302
 303         if (client_auth)
 304                 {
 305                 SSL_CTX_use_certificate_file(c_ctx,client_cert,
 306                         SSL_FILETYPE_PEM);
 307                 SSL_CTX_use_PrivateKey_file(c_ctx,client_cert,
 308                         SSL_FILETYPE_PEM);
 309                 }
 310
 311         if (    (!SSL_CTX_load_verify_locations(s_ctx,CAfile,CApath)) ||
 312                 (!SSL_CTX_set_default_verify_paths(s_ctx)) ||
 313                 (!SSL_CTX_load_verify_locations(c_ctx,CAfile,CApath)) ||
 314                 (!SSL_CTX_set_default_verify_paths(c_ctx)))
 315                 {
 316                 /* fprintf(stderr,"SSL_load_verify_locations\n"); */
 317                 ERR_print_errors(bio_err);
 318                 /* goto end; */
 319                 }
 320
 321         if (client_auth)
 322                 {
 323                 fprintf(stderr,"client authentication\n");
 324                 SSL_CTX_set_verify(s_ctx,
 325                         SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT,
 326                         verify_callback);
 327                 }
 328         if (server_auth)
 329                 {
 330                 fprintf(stderr,"server authentication\n");
 331                 SSL_CTX_set_verify(c_ctx,SSL_VERIFY_PEER,
 332                         verify_callback);
 333                 }
 334
 335         c_ssl=SSL_new(c_ctx);
 336         s_ssl=SSL_new(s_ctx);
 337
 338         for (i=0; i<number; i++)
 339                 {
 340                 if (!reuse) SSL_set_session(c_ssl,NULL);
 341                 ret=doit(s_ssl,c_ssl,bytes);
 342                 }
 343
 344         if (!verbose)
 345                 {
 346                 ciph=SSL_get_current_cipher(c_ssl);
 347                 fprintf(stdout,"Protocol %s, cipher %s, %s\n",
 348                         SSL_get_version(c_ssl),
 349                         SSL_CIPHER_get_version(ciph),
 350                         SSL_CIPHER_get_name(ciph));
 351                 }
 352         if ((number > 1) || (bytes > 1L))
 353                 printf("%d handshakes of %ld bytes done\n",number,bytes);
 354
 355         SSL_free(s_ssl);
 356         SSL_free(c_ssl);
 357
 358 end:
 359         if (s_ctx != NULL) SSL_CTX_free(s_ctx);
 360         if (c_ctx != NULL) SSL_CTX_free(c_ctx);
 361
 362         if (bio_stdout != NULL) BIO_free(bio_stdout);
 363
 364         ERR_remove_state(0);
 365         EVP_cleanup();
 366         CRYPTO_mem_leaks(bio_err);
 367         EXIT(ret);
 368         }
 369
 370 #define W_READ  1
 371 #define W_WRITE 2
 372 #define C_DONE  1
 373 #define S_DONE  2
 374
 375 int doit(s_ssl,c_ssl,count)
 376 SSL *s_ssl,*c_ssl;
 377 long count;
 378         {
 379         MS_STATIC char cbuf[1024*8],sbuf[1024*8];
 380         long cw_num=count,cr_num=count;
 381         long sw_num=count,sr_num=count;
 382         int ret=1;
 383         BIO *c_to_s=NULL;
 384         BIO *s_to_c=NULL;
 385         BIO *c_bio=NULL;
 386         BIO *s_bio=NULL;
 387         int c_r,c_w,s_r,s_w;
 388         int c_want,s_want;
 389         int i,j;
 390         int done=0;
 391         int c_write,s_write;
 392         int do_server=0,do_client=0;
 393         SSL_CIPHER *ciph;
 394
 395         c_to_s=BIO_new(BIO_s_mem());
 396         s_to_c=BIO_new(BIO_s_mem());
 397         if ((s_to_c == NULL) || (c_to_s == NULL))
 398                 {
 399                 ERR_print_errors(bio_err);
 400                 goto err;
 401                 }
 402
 403         c_bio=BIO_new(BIO_f_ssl());
 404         s_bio=BIO_new(BIO_f_ssl());
 405         if ((c_bio == NULL) || (s_bio == NULL))
 406                 {
 407                 ERR_print_errors(bio_err);
 408                 goto err;
 409                 }
 410
 411         SSL_set_connect_state(c_ssl);
 412         SSL_set_bio(c_ssl,s_to_c,c_to_s);
 413         BIO_set_ssl(c_bio,c_ssl,BIO_NOCLOSE);
 414
 415         SSL_set_accept_state(s_ssl);
 416         SSL_set_bio(s_ssl,c_to_s,s_to_c);
 417         BIO_set_ssl(s_bio,s_ssl,BIO_NOCLOSE);
 418
 419         c_r=0; s_r=1;
 420         c_w=1; s_w=0;
 421         c_want=W_WRITE;
 422         s_want=0;
 423         c_write=1,s_write=0;
 424
 425         /* We can always do writes */
 426         for (;;)
 427                 {
 428                 do_server=0;
 429                 do_client=0;
 430
 431                 i=(int)BIO_pending(s_bio);
 432                 if ((i && s_r) || s_w) do_server=1;
 433
 434                 i=(int)BIO_pending(c_bio);
 435                 if ((i && c_r) || c_w) do_client=1;
 436
 437                 if (do_server && debug)
 438                         {
 439                         if (SSL_in_init(s_ssl))
 440                                 printf("server waiting in SSL_accept - %s\n",
 441                                         SSL_state_string_long(s_ssl));
 442 /*                      else if (s_write)
 443                                 printf("server:SSL_write()\n");
 444                         else
 445                                 printf("server:SSL_read()\n"); */
 446                         }
 447
 448                 if (do_client && debug)
 449                         {
 450                         if (SSL_in_init(c_ssl))
 451                                 printf("client waiting in SSL_connect - %s\n",
 452                                         SSL_state_string_long(c_ssl));
 453 /*                      else if (c_write)
 454                                 printf("client:SSL_write()\n");
 455                         else
 456                                 printf("client:SSL_read()\n"); */
 457                         }
 458
 459                 if (!do_client && !do_server)
 460                         {
 461                         fprintf(stdout,"ERROR IN STARTUP\n");
 462                         ERR_print_errors(bio_err);
 463                         break;
 464                         }
 465                 if (do_client && !(done & C_DONE))
 466                         {
 467                         if (c_write)
 468                                 {
 469                                 j=(cw_num > (long)sizeof(cbuf))
 470                                         ?sizeof(cbuf):(int)cw_num;
 471                                 i=BIO_write(c_bio,cbuf,j);
 472                                 if (i < 0)
 473                                         {
 474                                         c_r=0;
 475                                         c_w=0;
 476                                         if (BIO_should_retry(c_bio))
 477                                                 {
 478                                                 if (BIO_should_read(c_bio))
 479                                                         c_r=1;
 480                                                 if (BIO_should_write(c_bio))
 481                                                         c_w=1;
 482                                                 }
 483                                         else
 484                                                 {
 485                                                 fprintf(stderr,"ERROR in CLIENT\n");
 486                                                 ERR_print_errors(bio_err);
 487                                                 goto err;
 488                                                 }
 489                                         }
 490                                 else if (i == 0)
 491                                         {
 492                                         fprintf(stderr,"SSL CLIENT STARTUP FAILED\n");
 493                                         goto err;
 494                                         }
 495                                 else
 496                                         {
 497                                         if (debug)
 498                                                 printf("client wrote %d\n",i);
 499                                         /* ok */
 500                                         s_r=1;
 501                                         c_write=0;
 502                                         cw_num-=i;
 503                                         }
 504                                 }
 505                         else
 506                                 {
 507                                 i=BIO_read(c_bio,cbuf,sizeof(cbuf));
 508                                 if (i < 0)
 509                                         {
 510                                         c_r=0;
 511                                         c_w=0;
 512                                         if (BIO_should_retry(c_bio))
 513                                                 {
 514                                                 if (BIO_should_read(c_bio))
 515                                                         c_r=1;
 516                                                 if (BIO_should_write(c_bio))
 517                                                         c_w=1;
 518                                                 }
 519                                         else
 520                                                 {
 521                                                 fprintf(stderr,"ERROR in CLIENT\n");
 522                                                 ERR_print_errors(bio_err);
 523                                                 goto err;
 524                                                 }
 525                                         }
 526                                 else if (i == 0)
 527                                         {
 528                                         fprintf(stderr,"SSL CLIENT STARTUP FAILED\n");
 529                                         goto err;
 530                                         }
 531                                 else
 532                                         {
 533                                         if (debug)
 534                                                 printf("client read %d\n",i);
 535                                         cr_num-=i;
 536                                         if (sw_num > 0)
 537                                                 {
 538                                                 s_write=1;
 539                                                 s_w=1;
 540                                                 }
 541                                         if (cr_num <= 0)
 542                                                 {
 543                                                 s_write=1;
 544                                                 s_w=1;
 545                                                 done=S_DONE|C_DONE;
 546                                                 }
 547                                         }
 548                                 }
 549                         }
 550
 551                 if (do_server && !(done & S_DONE))
 552                         {
 553                         if (!s_write)
 554                                 {
 555                                 i=BIO_read(s_bio,sbuf,sizeof(cbuf));
 556                                 if (i < 0)
 557                                         {
 558                                         s_r=0;
 559                                         s_w=0;
 560                                         if (BIO_should_retry(s_bio))
 561                                                 {
 562                                                 if (BIO_should_read(s_bio))
 563                                                         s_r=1;
 564                                                 if (BIO_should_write(s_bio))
 565                                                         s_w=1;
 566                                                 }
 567                                         else
 568                                                 {
 569                                                 fprintf(stderr,"ERROR in SERVER\n");
 570                                                 ERR_print_errors(bio_err);
 571                                                 goto err;
 572                                                 }
 573                                         }
 574                                 else if (i == 0)
 575                                         {
 576                                         ERR_print_errors(bio_err);
 577                                         fprintf(stderr,"SSL SERVER STARTUP FAILED in SSL_read\n");
 578                                         goto err;
 579                                         }
 580                                 else
 581                                         {
 582                                         if (debug)
 583                                                 printf("server read %d\n",i);
 584                                         sr_num-=i;
 585                                         if (cw_num > 0)
 586                                                 {
 587                                                 c_write=1;
 588                                                 c_w=1;
 589                                                 }
 590                                         if (sr_num <= 0)
 591                                                 {
 592                                                 s_write=1;
 593                                                 s_w=1;
 594                                                 c_write=0;
 595                                                 }
 596                                         }
 597                                 }
 598                         else
 599                                 {
 600                                 j=(sw_num > (long)sizeof(sbuf))?
 601                                         sizeof(sbuf):(int)sw_num;
 602                                 i=BIO_write(s_bio,sbuf,j);
 603                                 if (i < 0)
 604                                         {
 605                                         s_r=0;
 606                                         s_w=0;
 607                                         if (BIO_should_retry(s_bio))
 608                                                 {
 609                                                 if (BIO_should_read(s_bio))
 610                                                         s_r=1;
 611                                                 if (BIO_should_write(s_bio))
 612                                                         s_w=1;
 613                                                 }
 614                                         else
 615                                                 {
 616                                                 fprintf(stderr,"ERROR in SERVER\n");
 617                                                 ERR_print_errors(bio_err);
 618                                                 goto err;
 619                                                 }
 620                                         }
 621                                 else if (i == 0)
 622                                         {
 623                                         ERR_print_errors(bio_err);
 624                                         fprintf(stderr,"SSL SERVER STARTUP FAILED in SSL_write\n");
 625                                         goto err;
 626                                         }
 627                                 else
 628                                         {
 629                                         if (debug)
 630                                                 printf("server wrote %d\n",i);
 631                                         sw_num-=i;
 632                                         s_write=0;
 633                                         c_r=1;
 634                                         if (sw_num <= 0)
 635                                                 done|=S_DONE;
 636                                         }
 637                                 }
 638                         }
 639
 640                 if ((done & S_DONE) && (done & C_DONE)) break;
 641                 }
 642
 643         ciph=SSL_get_current_cipher(c_ssl);
 644         if (verbose)
 645                 fprintf(stdout,"DONE, protocol %s, cipher %s, %s\n",
 646                         SSL_get_version(c_ssl),
 647                         SSL_CIPHER_get_version(ciph),
 648                         SSL_CIPHER_get_name(ciph));
 649         ret=0;
 650 err:
 651         /* We have to set the BIO's to NULL otherwise they will be
 652          * Free()ed twice.  Once when th s_ssl is SSL_free()ed and
 653          * again when c_ssl is SSL_free()ed.
 654          * This is a hack required because s_ssl and c_ssl are sharing the same
 655          * BIO structure and SSL_set_bio() and SSL_free() automatically
 656          * BIO_free non NULL entries.
 657          * You should not normally do this or be required to do this */
 658         if (s_ssl != NULL)
 659                 {
 660                 s_ssl->rbio=NULL;
 661                 s_ssl->wbio=NULL;
 662                 }
 663         if (c_ssl != NULL)
 664                 {
 665                 c_ssl->rbio=NULL;
 666                 c_ssl->wbio=NULL;
 667                 }
 668
 669         if (c_to_s != NULL) BIO_free(c_to_s);
 670         if (s_to_c != NULL) BIO_free(s_to_c);
 671         if (c_bio != NULL) BIO_free_all(c_bio);
 672         if (s_bio != NULL) BIO_free_all(s_bio);
 673         return(ret);
 674         }
 675
 676 int MS_CALLBACK verify_callback(ok, ctx)
 677 int ok;
 678 X509_STORE_CTX *ctx;
 679         {
 680         char *s,buf[256];
 681
 682         s=X509_NAME_oneline(X509_get_subject_name(ctx->current_cert),buf,256);
 683         if (s != NULL)
 684                 {
 685                 if (ok)
 686                         fprintf(stderr,"depth=%d %s\n",ctx->error_depth,buf);
 687                 else
 688                         fprintf(stderr,"depth=%d error=%d %s\n",
 689                                 ctx->error_depth,ctx->error,buf);
 690                 }
 691
 692         if (ok == 0)
 693                 {
 694                 switch (ctx->error)
 695                         {
 696                 case X509_V_ERR_CERT_NOT_YET_VALID:
 697                 case X509_V_ERR_CERT_HAS_EXPIRED:
 698                 case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
 699                         ok=1;
 700                         }
 701                 }
 702
 703         return(ok);
 704         }
 705
 706 #ifndef NO_DH
 707 static unsigned char dh512_p[]={
 708         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
 709         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
 710         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
 711         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
 712         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
 713         0x47,0x74,0xE8,0x33,
 714         };
 715 static unsigned char dh512_g[]={
 716         0x02,
 717         };
 718
 719 static DH *get_dh512()
 720         {
 721         DH *dh=NULL;
 722
 723         if ((dh=DH_new()) == NULL) return(NULL);
 724         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
 725         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
 726         if ((dh->p == NULL) || (dh->g == NULL))
 727                 return(NULL);
 728         return(dh);
 729         }
 730 #endif
 731
 732 static RSA MS_CALLBACK *tmp_rsa_cb(s,export)
 733 SSL *s;
 734 int export;
 735         {
 736         static RSA *rsa_tmp=NULL;
 737
 738         if (rsa_tmp == NULL)
 739                 {
 740                 BIO_printf(bio_err,"Generating temp (512 bit) RSA key...");
 741                 BIO_flush(bio_err);
 742 #ifndef NO_RSA
 743                 rsa_tmp=RSA_generate_key(512,RSA_F4,NULL,NULL);
 744 #endif
 745                 BIO_printf(bio_err,"\n");
 746                 BIO_flush(bio_err);
 747                 }
 748         return(rsa_tmp);
 749         }
 750
 751