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 s_time - 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 #define USE_SOCKETS
71 #include "apps.h"
72 #ifdef OPENSSL_NO_STDIO
73 #define APPS_WIN16
74 #endif
75 #include <openssl/x509.h>
76 #include <openssl/ssl.h>
77 #include <openssl/pem.h>
78 #include "s_apps.h"
79 #include <openssl/err.h>
80 #ifdef WIN32_STUFF
81 #include "winmain.h"
82 #include "wintext.h"
83 #endif
84 #if !defined(OPENSSL_SYS_MSDOS)
85 #include OPENSSL_UNISTD
86 #endif
87
88 #if !defined(OPENSSL_SYS_NETWARE) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_VXWORKS) && (!defined(OPENSSL_SYS_VMS) || defined(__DECC))
89 #define TIMES
90 #endif
91
92 #ifndef _IRIX
93 #include <time.h>
94 #endif
95 #ifdef TIMES
96 #include <sys/types.h>
97 #include <sys/times.h>
98 #endif
99
100 /* Depending on the VMS version, the tms structure is perhaps defined.
101 The __TMS macro will show if it was. If it wasn't defined, we should
102 undefine TIMES, since that tells the rest of the program how things
103 should be handled. -- Richard Levitte */
104 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__TMS)
105 #undef TIMES
106 #endif
107
108 #if !defined(TIMES) && !defined(OPENSSL_SYS_VXWORKS) && !defined(OPENSSL_SYS_NETWARE)
109 #include <sys/timeb.h>
110 #endif
111
112 #if defined(sun) || defined(__ultrix)
113 #define _POSIX_SOURCE
114 #include <limits.h>
115 #include <sys/param.h>
116 #endif
117
118 /* The following if from times(3) man page. It may need to be changed
119 */
120 #ifndef HZ
121 # ifdef _SC_CLK_TCK
122 # define HZ ((double)sysconf(_SC_CLK_TCK))
123 # else
124 # ifndef CLK_TCK
125 # ifndef _BSD_CLK_TCK_ /* FreeBSD hack */
126 # define HZ 100.0
127 # else /* _BSD_CLK_TCK_ */
128 # define HZ ((double)_BSD_CLK_TCK_)
129 # endif
130 # else /* CLK_TCK */
131 # define HZ ((double)CLK_TCK)
132 # endif
133 # endif
134 #endif
135
136 #undef PROG
137 #define PROG s_time_main
138
139 #undef ioctl
140 #define ioctl ioctlsocket
141
142 #define SSL_CONNECT_NAME "localhost:4433"
143
144 /*#define TEST_CERT "client.pem" */ /* no default cert. */
145
146 #undef BUFSIZZ
147 #define BUFSIZZ 1024*10
148
149 #define MYBUFSIZ 1024*8
150
151 #undef min
152 #undef max
153 #define min(a,b) (((a) < (b)) ? (a) : (b))
154 #define max(a,b) (((a) > (b)) ? (a) : (b))
155
156 #undef SECONDS
157 #define SECONDS 30
158 extern int verify_depth;
159 extern int verify_error;
160
161 static void s_time_usage(void);
162 static int parseArgs( int argc, char **argv );
163 static SSL *doConnection( SSL *scon );
164 static void s_time_init(void);
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 OPENSSL_SYS_WIN32
189 static int exitNow = 0; /* Set when it's time to exit main */
190 #endif
191
s_time_init(void)192 static void s_time_init(void)
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 OPENSSL_SYS_WIN32
213 exitNow = 0; /* Set when it's time to exit main */
214 #endif
215 }
216
217 /***********************************************************************
218 * usage - display usage message
219 */
s_time_usage(void)220 static void s_time_usage(void)
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, key is in cert file\n\
227 file if not specified by this option\n\
228 -CApath arg - PEM format directory of CA's\n\
229 -CAfile arg - PEM format file of CA's\n\
230 -cipher - preferred cipher to use, play with 'openssl ciphers'\n\n";
231
232 printf( "usage: s_time <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 compatibility\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 */
parseArgs(int argc,char ** argv)252 static int parseArgs(int argc, char **argv)
253 {
254 int badop = 0;
255
256 verify_depth=0;
257 verify_error=X509_V_OK;
258
259 argc--;
260 argv++;
261
262 while (argc >= 1) {
263 if (strcmp(*argv,"-connect") == 0)
264 {
265 if (--argc < 1) goto bad;
266 host= *(++argv);
267 }
268 #if 0
269 else if( strcmp(*argv,"-host") == 0)
270 {
271 if (--argc < 1) goto bad;
272 host= *(++argv);
273 }
274 else if( strcmp(*argv,"-port") == 0)
275 {
276 if (--argc < 1) goto bad;
277 port= *(++argv);
278 }
279 #endif
280 else if (strcmp(*argv,"-reuse") == 0)
281 perform=2;
282 else if (strcmp(*argv,"-new") == 0)
283 perform=1;
284 else if( strcmp(*argv,"-verify") == 0) {
285
286 tm_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
287 if (--argc < 1) goto bad;
288 verify_depth=atoi(*(++argv));
289 BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
290
291 } else if( strcmp(*argv,"-cert") == 0) {
292
293 if (--argc < 1) goto bad;
294 t_cert_file= *(++argv);
295
296 } else if( strcmp(*argv,"-key") == 0) {
297
298 if (--argc < 1) goto bad;
299 t_key_file= *(++argv);
300
301 } else if( strcmp(*argv,"-CApath") == 0) {
302
303 if (--argc < 1) goto bad;
304 CApath= *(++argv);
305
306 } else if( strcmp(*argv,"-CAfile") == 0) {
307
308 if (--argc < 1) goto bad;
309 CAfile= *(++argv);
310
311 } else if( strcmp(*argv,"-cipher") == 0) {
312
313 if (--argc < 1) goto bad;
314 tm_cipher= *(++argv);
315 }
316 #ifdef FIONBIO
317 else if(strcmp(*argv,"-nbio") == 0) {
318 t_nbio=1;
319 }
320 #endif
321 else if(strcmp(*argv,"-www") == 0)
322 {
323 if (--argc < 1) goto bad;
324 s_www_path= *(++argv);
325 if(strlen(s_www_path) > MYBUFSIZ-100)
326 {
327 BIO_printf(bio_err,"-www option too long\n");
328 badop=1;
329 }
330 }
331 else if(strcmp(*argv,"-bugs") == 0)
332 st_bugs=1;
333 #ifndef OPENSSL_NO_SSL2
334 else if(strcmp(*argv,"-ssl2") == 0)
335 s_time_meth=SSLv2_client_method();
336 #endif
337 #ifndef OPENSSL_NO_SSL3
338 else if(strcmp(*argv,"-ssl3") == 0)
339 s_time_meth=SSLv3_client_method();
340 #endif
341 else if( strcmp(*argv,"-time") == 0) {
342
343 if (--argc < 1) goto bad;
344 maxTime= atoi(*(++argv));
345 }
346 else {
347 BIO_printf(bio_err,"unknown option %s\n",*argv);
348 badop=1;
349 break;
350 }
351
352 argc--;
353 argv++;
354 }
355
356 if (perform == 0) perform=3;
357
358 if(badop) {
359 bad:
360 s_time_usage();
361 return -1;
362 }
363
364 return 0; /* Valid args */
365 }
366
367 /***********************************************************************
368 * TIME - time functions
369 */
370 #define START 0
371 #define STOP 1
372
tm_Time_F(int s)373 static double tm_Time_F(int s)
374 {
375 static double ret;
376 #ifdef TIMES
377 static struct tms tstart,tend;
378
379 if(s == START) {
380 times(&tstart);
381 return(0);
382 } else {
383 times(&tend);
384 ret=((double)(tend.tms_utime-tstart.tms_utime))/HZ;
385 return((ret == 0.0)?1e-6:ret);
386 }
387 #elif defined(OPENSSL_SYS_NETWARE)
388 static clock_t tstart,tend;
389
390 if (s == START)
391 {
392 tstart=clock();
393 return(0);
394 }
395 else
396 {
397 tend=clock();
398 ret=(double)((double)(tend)-(double)(tstart));
399 return((ret < 0.001)?0.001:ret);
400 }
401 #elif defined(OPENSSL_SYS_VXWORKS)
402 {
403 static unsigned long tick_start, tick_end;
404
405 if( s == START )
406 {
407 tick_start = tickGet();
408 return 0;
409 }
410 else
411 {
412 tick_end = tickGet();
413 ret = (double)(tick_end - tick_start) / (double)sysClkRateGet();
414 return((ret == 0.0)?1e-6:ret);
415 }
416 }
417 #else /* !times() */
418 static struct timeb tstart,tend;
419 long i;
420
421 if(s == START) {
422 ftime(&tstart);
423 return(0);
424 } else {
425 ftime(&tend);
426 i=(long)tend.millitm-(long)tstart.millitm;
427 ret=((double)(tend.time-tstart.time))+((double)i)/1000.0;
428 return((ret == 0.0)?1e-6:ret);
429 }
430 #endif
431 }
432
433 /***********************************************************************
434 * MAIN - main processing area for client
435 * real name depends on MONOLITH
436 */
437 int MAIN(int, char **);
438
MAIN(int argc,char ** argv)439 int MAIN(int argc, char **argv)
440 {
441 double totalTime = 0.0;
442 int nConn = 0;
443 SSL *scon=NULL;
444 long finishtime=0;
445 int ret=1,i;
446 MS_STATIC char buf[1024*8];
447 int ver;
448
449 apps_startup();
450 s_time_init();
451
452 if (bio_err == NULL)
453 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
454
455 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
456 s_time_meth=SSLv23_client_method();
457 #elif !defined(OPENSSL_NO_SSL3)
458 s_time_meth=SSLv3_client_method();
459 #elif !defined(OPENSSL_NO_SSL2)
460 s_time_meth=SSLv2_client_method();
461 #endif
462
463 /* parse the command line arguments */
464 if( parseArgs( argc, argv ) < 0 )
465 goto end;
466
467 OpenSSL_add_ssl_algorithms();
468 if ((tm_ctx=SSL_CTX_new(s_time_meth)) == NULL) return(1);
469
470 SSL_CTX_set_quiet_shutdown(tm_ctx,1);
471
472 if (st_bugs) SSL_CTX_set_options(tm_ctx,SSL_OP_ALL);
473 SSL_CTX_set_cipher_list(tm_ctx,tm_cipher);
474 if(!set_cert_stuff(tm_ctx,t_cert_file,t_key_file))
475 goto end;
476
477 SSL_load_error_strings();
478
479 if ((!SSL_CTX_load_verify_locations(tm_ctx,CAfile,CApath)) ||
480 (!SSL_CTX_set_default_verify_paths(tm_ctx)))
481 {
482 /* BIO_printf(bio_err,"error setting default verify locations\n"); */
483 ERR_print_errors(bio_err);
484 /* goto end; */
485 }
486
487 if (tm_cipher == NULL)
488 tm_cipher = getenv("SSL_CIPHER");
489
490 if (tm_cipher == NULL ) {
491 fprintf( stderr, "No CIPHER specified\n" );
492 }
493
494 if (!(perform & 1)) goto next;
495 printf( "Collecting connection statistics for %d seconds\n", maxTime );
496
497 /* Loop and time how long it takes to make connections */
498
499 bytes_read=0;
500 finishtime=(long)time(NULL)+maxTime;
501 tm_Time_F(START);
502 for (;;)
503 {
504 if (finishtime < (long)time(NULL)) break;
505 #ifdef WIN32_STUFF
506
507 if( flushWinMsgs(0) == -1 )
508 goto end;
509
510 if( waitingToDie || exitNow ) /* we're dead */
511 goto end;
512 #endif
513
514 if( (scon = doConnection( NULL )) == NULL )
515 goto end;
516
517 if (s_www_path != NULL)
518 {
519 BIO_snprintf(buf,sizeof buf,"GET %s HTTP/1.0\r\n\r\n",s_www_path);
520 SSL_write(scon,buf,strlen(buf));
521 while ((i=SSL_read(scon,buf,sizeof(buf))) > 0)
522 bytes_read+=i;
523 }
524
525 #ifdef NO_SHUTDOWN
526 SSL_set_shutdown(scon,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
527 #else
528 SSL_shutdown(scon);
529 #endif
530 SHUTDOWN2(SSL_get_fd(scon));
531
532 nConn += 1;
533 if (SSL_session_reused(scon))
534 ver='r';
535 else
536 {
537 ver=SSL_version(scon);
538 if (ver == TLS1_VERSION)
539 ver='t';
540 else if (ver == SSL3_VERSION)
541 ver='3';
542 else if (ver == SSL2_VERSION)
543 ver='2';
544 else
545 ver='*';
546 }
547 fputc(ver,stdout);
548 fflush(stdout);
549
550 SSL_free( scon );
551 scon=NULL;
552 }
553 totalTime += tm_Time_F(STOP); /* Add the time for this iteration */
554
555 i=(int)((long)time(NULL)-finishtime+maxTime);
556 printf( "\n\n%d connections in %.2fs; %.2f connections/user sec, bytes read %ld\n", nConn, totalTime, ((double)nConn/totalTime),bytes_read);
557 printf( "%d connections in %ld real seconds, %ld bytes read per connection\n",nConn,(long)time(NULL)-finishtime+maxTime,bytes_read/nConn);
558
559 /* Now loop and time connections using the same session id over and over */
560
561 next:
562 if (!(perform & 2)) goto end;
563 printf( "\n\nNow timing with session id reuse.\n" );
564
565 /* Get an SSL object so we can reuse the session id */
566 if( (scon = doConnection( NULL )) == NULL )
567 {
568 fprintf( stderr, "Unable to get connection\n" );
569 goto end;
570 }
571
572 if (s_www_path != NULL)
573 {
574 BIO_snprintf(buf,sizeof buf,"GET %s HTTP/1.0\r\n\r\n",s_www_path);
575 SSL_write(scon,buf,strlen(buf));
576 while (SSL_read(scon,buf,sizeof(buf)) > 0)
577 ;
578 }
579 #ifdef NO_SHUTDOWN
580 SSL_set_shutdown(scon,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
581 #else
582 SSL_shutdown(scon);
583 #endif
584 SHUTDOWN2(SSL_get_fd(scon));
585
586 nConn = 0;
587 totalTime = 0.0;
588
589 finishtime=(long)time(NULL)+maxTime;
590
591 printf( "starting\n" );
592 bytes_read=0;
593 tm_Time_F(START);
594
595 for (;;)
596 {
597 if (finishtime < (long)time(NULL)) break;
598
599 #ifdef WIN32_STUFF
600 if( flushWinMsgs(0) == -1 )
601 goto end;
602
603 if( waitingToDie || exitNow ) /* we're dead */
604 goto end;
605 #endif
606
607 if( (doConnection( scon )) == NULL )
608 goto end;
609
610 if (s_www_path)
611 {
612 BIO_snprintf(buf,sizeof buf,"GET %s HTTP/1.0\r\n\r\n",s_www_path);
613 SSL_write(scon,buf,strlen(buf));
614 while ((i=SSL_read(scon,buf,sizeof(buf))) > 0)
615 bytes_read+=i;
616 }
617
618 #ifdef NO_SHUTDOWN
619 SSL_set_shutdown(scon,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
620 #else
621 SSL_shutdown(scon);
622 #endif
623 SHUTDOWN2(SSL_get_fd(scon));
624
625 nConn += 1;
626 if (SSL_session_reused(scon))
627 ver='r';
628 else
629 {
630 ver=SSL_version(scon);
631 if (ver == TLS1_VERSION)
632 ver='t';
633 else if (ver == SSL3_VERSION)
634 ver='3';
635 else if (ver == SSL2_VERSION)
636 ver='2';
637 else
638 ver='*';
639 }
640 fputc(ver,stdout);
641 fflush(stdout);
642 }
643 totalTime += tm_Time_F(STOP); /* Add the time for this iteration*/
644
645
646 printf( "\n\n%d connections in %.2fs; %.2f connections/user sec, bytes read %ld\n", nConn, totalTime, ((double)nConn/totalTime),bytes_read);
647 printf( "%d connections in %ld real seconds, %ld bytes read per connection\n",nConn,(long)time(NULL)-finishtime+maxTime,bytes_read/nConn);
648
649 ret=0;
650 end:
651 if (scon != NULL) SSL_free(scon);
652
653 if (tm_ctx != NULL)
654 {
655 SSL_CTX_free(tm_ctx);
656 tm_ctx=NULL;
657 }
658 apps_shutdown();
659 OPENSSL_EXIT(ret);
660 }
661
662 /***********************************************************************
663 * doConnection - make a connection
664 * Args:
665 * scon = earlier ssl connection for session id, or NULL
666 * Returns:
667 * SSL * = the connection pointer.
668 */
doConnection(SSL * scon)669 static SSL *doConnection(SSL *scon)
670 {
671 BIO *conn;
672 SSL *serverCon;
673 int width, i;
674 fd_set readfds;
675
676 if ((conn=BIO_new(BIO_s_connect())) == NULL)
677 return(NULL);
678
679 /* BIO_set_conn_port(conn,port);*/
680 BIO_set_conn_hostname(conn,host);
681
682 if (scon == NULL)
683 serverCon=SSL_new(tm_ctx);
684 else
685 {
686 serverCon=scon;
687 SSL_set_connect_state(serverCon);
688 }
689
690 SSL_set_bio(serverCon,conn,conn);
691
692 #if 0
693 if( scon != NULL )
694 SSL_set_session(serverCon,SSL_get_session(scon));
695 #endif
696
697 /* ok, lets connect */
698 for(;;) {
699 i=SSL_connect(serverCon);
700 if (BIO_sock_should_retry(i))
701 {
702 BIO_printf(bio_err,"DELAY\n");
703
704 i=SSL_get_fd(serverCon);
705 width=i+1;
706 FD_ZERO(&readfds);
707 FD_SET(i,&readfds);
708 /* Note: under VMS with SOCKETSHR the 2nd parameter
709 * is currently of type (int *) whereas under other
710 * systems it is (void *) if you don't have a cast it
711 * will choke the compiler: if you do have a cast then
712 * you can either go for (int *) or (void *).
713 */
714 select(width,(void *)&readfds,NULL,NULL,NULL);
715 continue;
716 }
717 break;
718 }
719 if(i <= 0)
720 {
721 BIO_printf(bio_err,"ERROR\n");
722 if (verify_error != X509_V_OK)
723 BIO_printf(bio_err,"verify error:%s\n",
724 X509_verify_cert_error_string(verify_error));
725 else
726 ERR_print_errors(bio_err);
727 if (scon == NULL)
728 SSL_free(serverCon);
729 return NULL;
730 }
731
732 return serverCon;
733 }
734
735
736