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