apps/s_time.c

   1 /* apps/s_time.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 #define NO_SHUTDOWN
  60
  61 /*-----------------------------------------
  62    cntime - SSL client connection timer program
  63    Written and donated by Larry Streepy <streepy@healthcare.com>
  64   -----------------------------------------*/
  65
  66 #include <stdio.h>
  67 #include <stdlib.h>
  68 #include <string.h>
  69
  70 #ifdef NO_STDIO
  71 #define APPS_WIN16
  72 #endif
  73 #include "x509.h"
  74 #include "ssl.h"
  75 #include "pem.h"
  76 #define USE_SOCKETS
  77 #include "apps.h"
  78 #include "s_apps.h"
  79 #include "err.h"
  80 #ifdef WIN32_STUFF
  81 #include "winmain.h"
  82 #include "wintext.h"
  83 #endif
  84
  85 #ifndef MSDOS
  86 #define TIMES
  87 #endif
  88
  89 #ifndef VMS
  90 #ifndef _IRIX
  91 #include <time.h>
  92 #endif
  93 #ifdef TIMES
  94 #include <sys/types.h>
  95 #include <sys/times.h>
  96 #endif
  97 #else /* VMS */
  98 #include <types.h>
  99 struct tms {
 100         time_t tms_utime;
 101         time_t tms_stime;
 102         time_t tms_uchild;      /* I dunno...  */
 103         time_t tms_uchildsys;   /* so these names are a guess :-) */
 104         }
 105 #endif
 106 #ifndef TIMES
 107 #include <sys/timeb.h>
 108 #endif
 109
 110 #ifdef _AIX
 111 #include <sys/select.h>
 112 #endif
 113
 114 #ifdef sun
 115 #include <limits.h>
 116 #include <sys/param.h>
 117 #endif
 118
 119 /* The following if from times(3) man page.  It may need to be changed
 120 */
 121 #ifndef HZ
 122 #ifndef CLK_TCK
 123 #ifndef VMS
 124 #define HZ      100.0
 125 #else /* VMS */
 126 #define HZ      100.0
 127 #endif
 128 #else /* CLK_TCK */
 129 #define HZ ((double)CLK_TCK)
 130 #endif
 131 #endif
 132
 133 #undef PROG
 134 #define PROG s_time_main
 135
 136 #define ioctl ioctlsocket
 137
 138 #define SSL_CONNECT_NAME        "localhost:4433"
 139
 140 /*#define TEST_CERT "client.pem" */ /* no default cert. */
 141
 142 #undef BUFSIZZ
 143 #define BUFSIZZ 1024*10
 144
 145 #define min(a,b) (((a) < (b)) ? (a) : (b))
 146 #define max(a,b) (((a) > (b)) ? (a) : (b))
 147
 148 #undef SECONDS
 149 #define SECONDS 30
 150 extern int verify_depth;
 151 extern int verify_error;
 152
 153 #ifndef NOPROTO
 154 static void s_time_usage(void);
 155 static int parseArgs( int argc, char **argv );
 156 static SSL *doConnection( SSL *scon );
 157 static void s_time_init(void);
 158 #else
 159 static void s_time_usage();
 160 static int parseArgs();
 161 static SSL *doConnection();
 162 static void s_time_init();
 163 #endif
 164
 165
 166 /***********************************************************************
 167  * Static data declarations
 168  */
 169
 170 /* static char *port=PORT_STR;*/
 171 static char *host=SSL_CONNECT_NAME;
 172 static char *t_cert_file=NULL;
 173 static char *t_key_file=NULL;
 174 static char *CApath=NULL;
 175 static char *CAfile=NULL;
 176 static char *tm_cipher=NULL;
 177 static int tm_verify = SSL_VERIFY_NONE;
 178 static int maxTime = SECONDS;
 179 static SSL_CTX *tm_ctx=NULL;
 180 static SSL_METHOD *s_time_meth=NULL;
 181 static char *s_www_path=NULL;
 182 static long bytes_read=0;
 183 static int st_bugs=0;
 184 static int perform=0;
 185 #ifdef FIONBIO
 186 static int t_nbio=0;
 187 #endif
 188 #ifdef WIN32
 189 static int exitNow = 0;         /* Set when it's time to exit main */
 190 #endif
 191
 192 static void s_time_init()
 193         {
 194         host=SSL_CONNECT_NAME;
 195         t_cert_file=NULL;
 196         t_key_file=NULL;
 197         CApath=NULL;
 198         CAfile=NULL;
 199         tm_cipher=NULL;
 200         tm_verify = SSL_VERIFY_NONE;
 201         maxTime = SECONDS;
 202         tm_ctx=NULL;
 203         s_time_meth=NULL;
 204         s_www_path=NULL;
 205         bytes_read=0;
 206         st_bugs=0;
 207         perform=0;
 208
 209 #ifdef FIONBIO
 210         t_nbio=0;
 211 #endif
 212 #ifdef WIN32
 213         exitNow = 0;            /* Set when it's time to exit main */
 214 #endif
 215         }
 216
 217 /***********************************************************************
 218  * usage - display usage message
 219  */
 220 static void s_time_usage()
 221 {
 222         static char umsg[] = "\
 223 -time arg     - max number of seconds to collect data, default %d\n\
 224 -verify arg   - turn on peer certificate verification, arg == depth\n\
 225 -cert arg     - certificate file to use, PEM format assumed\n\
 226 -key arg      - RSA file to use, PEM format assumed, in cert file if\n\
 227                 not specified but cert fill is.\n\
 228 -CApath arg   - PEM format directory of CA's\n\
 229 -CAfile arg   - PEM format file of CA's\n\
 230 -cipher       - prefered cipher to use, play with 'ssleay ciphers'\n\n";
 231
 232         printf( "usage: client <args>\n\n" );
 233
 234         printf("-connect host:port - host:port to connect to (default is %s)\n",SSL_CONNECT_NAME);
 235 #ifdef FIONBIO
 236         printf("-nbio         - Run with non-blocking IO\n");
 237         printf("-ssl2         - Just use SSLv2\n");
 238         printf("-ssl3         - Just use SSLv3\n");
 239         printf("-bugs         - Turn on SSL bug compatability\n");
 240         printf("-new          - Just time new connections\n");
 241         printf("-reuse        - Just time connection reuse\n");
 242         printf("-www page     - Retrieve 'page' from the site\n");
 243 #endif
 244         printf( umsg,SECONDS );
 245 }
 246
 247 /***********************************************************************
 248  * parseArgs - Parse command line arguments and initialize data
 249  *
 250  * Returns 0 if ok, -1 on bad args
 251  */
 252 static int parseArgs(argc,argv)
 253 int argc;
 254 char **argv;
 255 {
 256     int badop = 0;
 257
 258     verify_depth=0;
 259     verify_error=X509_V_OK;
 260 #ifdef FIONBIO
 261     t_nbio=0;
 262 #endif
 263
 264         apps_startup();
 265         s_time_init();
 266
 267         if (bio_err == NULL)
 268                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 269
 270     argc--;
 271     argv++;
 272
 273     while (argc >= 1) {
 274         if (strcmp(*argv,"-connect") == 0)
 275                 {
 276                 if (--argc < 1) goto bad;
 277                 host= *(++argv);
 278                 }
 279 #if 0
 280         else if( strcmp(*argv,"-host") == 0)
 281                 {
 282                 if (--argc < 1) goto bad;
 283                 host= *(++argv);
 284                 }
 285         else if( strcmp(*argv,"-port") == 0)
 286                 {
 287                 if (--argc < 1) goto bad;
 288                 port= *(++argv);
 289                 }
 290 #endif
 291         else if (strcmp(*argv,"-reuse") == 0)
 292                 perform=2;
 293         else if (strcmp(*argv,"-new") == 0)
 294                 perform=1;
 295         else if( strcmp(*argv,"-verify") == 0) {
 296
 297             tm_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
 298             if (--argc < 1) goto bad;
 299             verify_depth=atoi(*(++argv));
 300             BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 301
 302         } else if( strcmp(*argv,"-cert") == 0) {
 303
 304             if (--argc < 1) goto bad;
 305             t_cert_file= *(++argv);
 306
 307         } else if( strcmp(*argv,"-key") == 0) {
 308
 309             if (--argc < 1) goto bad;
 310             t_key_file= *(++argv);
 311
 312         } else if( strcmp(*argv,"-CApath") == 0) {
 313
 314             if (--argc < 1) goto bad;
 315             CApath= *(++argv);
 316
 317         } else if( strcmp(*argv,"-CAfile") == 0) {
 318
 319             if (--argc < 1) goto bad;
 320             CAfile= *(++argv);
 321
 322         } else if( strcmp(*argv,"-cipher") == 0) {
 323
 324             if (--argc < 1) goto bad;
 325             tm_cipher= *(++argv);
 326         }
 327 #ifdef FIONBIO
 328         else if(strcmp(*argv,"-nbio") == 0) {
 329             t_nbio=1;
 330         }
 331 #endif
 332         else if(strcmp(*argv,"-www") == 0)
 333                 {
 334                 if (--argc < 1) goto bad;
 335                 s_www_path= *(++argv);
 336                 }
 337         else if(strcmp(*argv,"-bugs") == 0)
 338             st_bugs=1;
 339 #ifndef NO_SSL2
 340         else if(strcmp(*argv,"-ssl2") == 0)
 341             s_time_meth=SSLv2_client_method();
 342 #endif
 343 #ifndef NO_SSL3
 344         else if(strcmp(*argv,"-ssl3") == 0)
 345             s_time_meth=SSLv3_client_method();
 346 #endif
 347         else if( strcmp(*argv,"-time") == 0) {
 348
 349             if (--argc < 1) goto bad;
 350             maxTime= atoi(*(++argv));
 351         }
 352         else {
 353             BIO_printf(bio_err,"unknown option %s\n",*argv);
 354             badop=1;
 355             break;
 356         }
 357
 358         argc--;
 359         argv++;
 360     }
 361
 362     if (perform == 0) perform=3;
 363
 364     if(badop) {
 365 bad:
 366                 s_time_usage();
 367                 return -1;
 368     }
 369
 370         return 0;                       /* Valid args */
 371 }
 372
 373 /***********************************************************************
 374  * TIME - time functions
 375  */
 376 #define START   0
 377 #define STOP    1
 378
 379 static double tm_Time_F(s)
 380 int s;
 381         {
 382         static double ret;
 383 #ifdef TIMES
 384         static struct tms tstart,tend;
 385
 386         if(s == START) {
 387                 times(&tstart);
 388                 return(0);
 389         } else {
 390                 times(&tend);
 391                 ret=((double)(tend.tms_utime-tstart.tms_utime))/HZ;
 392                 return((ret == 0.0)?1e-6:ret);
 393         }
 394 #else /* !times() */
 395         static struct timeb tstart,tend;
 396         long i;
 397
 398         if(s == START) {
 399                 ftime(&tstart);
 400                 return(0);
 401         } else {
 402                 ftime(&tend);
 403                 i=(long)tend.millitm-(long)tstart.millitm;
 404                 ret=((double)(tend.time-tstart.time))+((double)i)/1000.0;
 405                 return((ret == 0.0)?1e-6:ret);
 406         }
 407 #endif
 408 }
 409
 410 /***********************************************************************
 411  * MAIN - main processing area for client
 412  *                      real name depends on MONOLITH
 413  */
 414 int
 415 MAIN(argc,argv)
 416 int argc;
 417 char **argv;
 418         {
 419         double totalTime = 0.0;
 420         int nConn = 0;
 421         SSL *scon=NULL;
 422         long finishtime=0;
 423         int ret=1,i;
 424         MS_STATIC char buf[1024*8];
 425         int ver;
 426
 427 #if !defined(NO_SSL2) && !defined(NO_SSL3)
 428         s_time_meth=SSLv23_client_method();
 429 #elif !defined(NO_SSL3)
 430         s_time_meth=SSLv3_client_method();
 431 #elif !defined(NO_SSL2)
 432         s_time_meth=SSLv2_client_method();
 433 #endif
 434
 435         /* parse the command line arguments */
 436         if( parseArgs( argc, argv ) < 0 )
 437                 goto end;
 438
 439         SSLeay_add_ssl_algorithms();
 440         if ((tm_ctx=SSL_CTX_new(s_time_meth)) == NULL) return(1);
 441
 442         SSL_CTX_set_quiet_shutdown(tm_ctx,1);
 443
 444         if (st_bugs) SSL_CTX_set_options(tm_ctx,SSL_OP_ALL);
 445         SSL_CTX_set_cipher_list(tm_ctx,tm_cipher);
 446         if(!set_cert_stuff(tm_ctx,t_cert_file,t_key_file))
 447                 goto end;
 448
 449         SSL_load_error_strings();
 450
 451         if ((!SSL_CTX_load_verify_locations(tm_ctx,CAfile,CApath)) ||
 452                 (!SSL_CTX_set_default_verify_paths(tm_ctx)))
 453                 {
 454                 /* BIO_printf(bio_err,"error seting default verify locations\n"); */
 455                 ERR_print_errors(bio_err);
 456                 /* goto end; */
 457                 }
 458
 459         if (tm_cipher == NULL)
 460                 tm_cipher = getenv("SSL_CIPHER");
 461
 462         if (tm_cipher == NULL ) {
 463                 fprintf( stderr, "No CIPHER specified\n" );
 464 /*              EXIT(1); */
 465         }
 466
 467         if (!(perform & 1)) goto next;
 468         printf( "Collecting connection statistics for %d seconds\n", maxTime );
 469
 470         /* Loop and time how long it takes to make connections */
 471
 472         bytes_read=0;
 473         finishtime=(long)time(NULL)+maxTime;
 474         tm_Time_F(START);
 475         for (;;)
 476                 {
 477                 if (finishtime < time(NULL)) break;
 478 #ifdef WIN32_STUFF
 479
 480                 if( flushWinMsgs(0) == -1 )
 481                         goto end;
 482
 483                 if( waitingToDie || exitNow )           /* we're dead */
 484                         goto end;
 485 #endif
 486
 487                 if( (scon = doConnection( NULL )) == NULL )
 488                         goto end;
 489
 490                 if (s_www_path != NULL)
 491                         {
 492                         sprintf(buf,"GET %s HTTP/1.0\r\n\r\n",s_www_path);
 493                         SSL_write(scon,buf,strlen(buf));
 494                         while ((i=SSL_read(scon,buf,sizeof(buf))) > 0)
 495                                 bytes_read+=i;
 496                         }
 497
 498 #ifdef NO_SHUTDOWN
 499                 SSL_set_shutdown(scon,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
 500 #else
 501                 SSL_shutdown(scon);
 502 #endif
 503                 SHUTDOWN2(SSL_get_fd(scon));
 504
 505                 nConn += 1;
 506                 if (SSL_session_reused(scon))
 507                         ver='r';
 508                 else
 509                         {
 510                         ver=SSL_version(scon);
 511                         if (ver == TLS1_VERSION)
 512                                 ver='t';
 513                         else if (ver == SSL3_VERSION)
 514                                 ver='3';
 515                         else if (ver == SSL2_VERSION)
 516                                 ver='2';
 517                         else
 518                                 ver='*';
 519                         }
 520                 fputc(ver,stdout);
 521                 fflush(stdout);
 522
 523                 SSL_free( scon );
 524                 scon=NULL;
 525                 }
 526         totalTime += tm_Time_F(STOP); /* Add the time for this iteration */
 527
 528         i=(int)(time(NULL)-finishtime+maxTime);
 529         printf( "\n\n%d connections in %.2fs; %.2f connections/user sec, bytes read %ld\n", nConn, totalTime, ((double)nConn/totalTime),bytes_read);
 530         printf( "%d connections in %ld real seconds, %ld bytes read per connection\n",nConn,time(NULL)-finishtime+maxTime,bytes_read/nConn);
 531
 532         /* Now loop and time connections using the same session id over and over */
 533
 534 next:
 535         if (!(perform & 2)) goto end;
 536         printf( "\n\nNow timing with session id reuse.\n" );
 537
 538         /* Get an SSL object so we can reuse the session id */
 539         if( (scon = doConnection( NULL )) == NULL )
 540                 {
 541                 fprintf( stderr, "Unable to get connection\n" );
 542                 goto end;
 543                 }
 544
 545         if (s_www_path != NULL)
 546                 {
 547                 sprintf(buf,"GET %s HTTP/1.0\r\n\r\n",s_www_path);
 548                 SSL_write(scon,buf,strlen(buf));
 549                 while (SSL_read(scon,buf,sizeof(buf)) > 0)
 550                         ;
 551                 }
 552 #ifdef NO_SHUTDOWN
 553         SSL_set_shutdown(scon,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
 554 #else
 555         SSL_shutdown(scon);
 556 #endif
 557         SHUTDOWN2(SSL_get_fd(scon));
 558
 559         nConn = 0;
 560         totalTime = 0.0;
 561
 562         finishtime=time(NULL)+maxTime;
 563
 564         printf( "starting\n" );
 565         bytes_read=0;
 566         tm_Time_F(START);
 567
 568         for (;;)
 569                 {
 570                 if (finishtime < time(NULL)) break;
 571
 572 #ifdef WIN32_STUFF
 573                 if( flushWinMsgs(0) == -1 )
 574                         goto end;
 575
 576                 if( waitingToDie || exitNow )   /* we're dead */
 577                         goto end;
 578 #endif
 579
 580                 if( (doConnection( scon )) == NULL )
 581                         goto end;
 582
 583                 if (s_www_path)
 584                         {
 585                         sprintf(buf,"GET %s HTTP/1.0\r\n\r\n",s_www_path);
 586                         SSL_write(scon,buf,strlen(buf));
 587                         while ((i=SSL_read(scon,buf,sizeof(buf))) > 0)
 588                                 bytes_read+=i;
 589                         }
 590
 591 #ifdef NO_SHUTDOWN
 592                 SSL_set_shutdown(scon,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
 593 #else
 594                 SSL_shutdown(scon);
 595 #endif
 596                 SHUTDOWN2(SSL_get_fd(scon));
 597
 598                 nConn += 1;
 599                 if (SSL_session_reused(scon))
 600                         ver='r';
 601                 else
 602                         {
 603                         ver=SSL_version(scon);
 604                         if (ver == TLS1_VERSION)
 605                                 ver='t';
 606                         else if (ver == SSL3_VERSION)
 607                                 ver='3';
 608                         else if (ver == SSL2_VERSION)
 609                                 ver='2';
 610                         else
 611                                 ver='*';
 612                         }
 613                 fputc(ver,stdout);
 614                 fflush(stdout);
 615                 }
 616         totalTime += tm_Time_F(STOP); /* Add the time for this iteration*/
 617
 618
 619         printf( "\n\n%d connections in %.2fs; %.2f connections/user sec, bytes read %ld\n", nConn, totalTime, ((double)nConn/totalTime),bytes_read);
 620         printf( "%d connections in %ld real seconds, %ld bytes read per connection\n",nConn,time(NULL)-finishtime+maxTime,bytes_read/nConn);
 621
 622         ret=0;
 623 end:
 624         if (scon != NULL) SSL_free(scon);
 625
 626         if (tm_ctx != NULL)
 627                 {
 628                 SSL_CTX_free(tm_ctx);
 629                 tm_ctx=NULL;
 630                 }
 631         EXIT(ret);
 632         }
 633
 634 /***********************************************************************
 635  * doConnection - make a connection
 636  * Args:
 637  *              scon    = earlier ssl connection for session id, or NULL
 638  * Returns:
 639  *              SSL *   = the connection pointer.
 640  */
 641 static SSL *
 642 doConnection(scon)
 643 SSL *scon;
 644         {
 645         BIO *conn;
 646         SSL *serverCon;
 647         int width, i;
 648         fd_set readfds;
 649
 650         if ((conn=BIO_new(BIO_s_connect())) == NULL)
 651                 return(NULL);
 652
 653 /*      BIO_set_conn_port(conn,port);*/
 654         BIO_set_conn_hostname(conn,host);
 655
 656         if (scon == NULL)
 657                 serverCon=(SSL *)SSL_new(tm_ctx);
 658         else
 659                 {
 660                 serverCon=scon;
 661                 SSL_set_connect_state(serverCon);
 662                 }
 663
 664         SSL_set_bio(serverCon,conn,conn);
 665
 666 #if 0
 667         if( scon != NULL )
 668                 SSL_set_session(serverCon,SSL_get_session(scon));
 669 #endif
 670
 671         /* ok, lets connect */
 672         for(;;) {
 673                 i=SSL_connect(serverCon);
 674                 if (BIO_sock_should_retry(i))
 675                         {
 676                         BIO_printf(bio_err,"DELAY\n");
 677
 678                         i=SSL_get_fd(serverCon);
 679                         width=i+1;
 680                         FD_ZERO(&readfds);
 681                         FD_SET(i,&readfds);
 682                         select(width,&readfds,NULL,NULL,NULL);
 683                         continue;
 684                         }
 685                 break;
 686                 }
 687         if(i <= 0)
 688                 {
 689                 BIO_printf(bio_err,"ERROR\n");
 690                 if (verify_error != X509_V_OK)
 691                         BIO_printf(bio_err,"verify error:%s\n",
 692                                 X509_verify_cert_error_string(verify_error));
 693                 else
 694                         ERR_print_errors(bio_err);
 695                 if (scon == NULL)
 696                         SSL_free(serverCon);
 697                 return NULL;
 698                 }
 699
 700         return serverCon;
 701         }
 702
 703