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