/* apps/s_time.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 * 
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 * 
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from 
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 * 
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * 
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */

#define NO_SHUTDOWN

/*-----------------------------------------
   s_time - SSL client connection timer program
   Written and donated by Larry Streepy <streepy@healthcare.com>
  -----------------------------------------*/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#ifdef NO_STDIO
#define APPS_WIN16
#endif
#define USE_SOCKETS
#include <openssl/x509.h>
#include <openssl/ssl.h>
#include <openssl/pem.h>
#include "apps.h"
#include "s_apps.h"
#include <openssl/err.h>
#ifdef WIN32_STUFF
#include "winmain.h"
#include "wintext.h"
#endif

#if !defined(MSDOS) && (!defined(VMS) || defined(__DECC))
#define TIMES
#endif

#ifndef _IRIX
#include <time.h>
#endif
#ifdef TIMES
#include <sys/types.h>
#include <sys/times.h>
#endif

/* Depending on the VMS version, the tms structure is perhaps defined.
   The __TMS macro will show if it was.  If it wasn't defined, we should
   undefine TIMES, since that tells the rest of the program how things
   should be handled.				-- Richard Levitte */
#if defined(VMS) && defined(__DECC) && !defined(__TMS)
#undef TIMES
#endif

#ifndef TIMES
#include <sys/timeb.h>
#endif

#ifdef _AIX
#include <sys/select.h>
#endif

#if defined(sun) || defined(__ultrix)
#define _POSIX_SOURCE
#include <limits.h>
#include <sys/param.h>
#endif

/* The following if from times(3) man page.  It may need to be changed
*/
#ifndef HZ
#ifndef CLK_TCK
#define HZ      100.0
#else /* CLK_TCK */
#define HZ ((double)CLK_TCK)
#endif
#endif

#undef PROG
#define PROG s_time_main

#undef ioctl
#define ioctl ioctlsocket

#define SSL_CONNECT_NAME	"localhost:4433"

/*#define TEST_CERT "client.pem" */ /* no default cert. */

#undef BUFSIZZ
#define BUFSIZZ 1024*10

#define min(a,b) (((a) < (b)) ? (a) : (b))
#define max(a,b) (((a) > (b)) ? (a) : (b))

#undef SECONDS
#define SECONDS	30
extern int verify_depth;
extern int verify_error;

static void s_time_usage(void);
static int parseArgs( int argc, char **argv );
static SSL *doConnection( SSL *scon );
static void s_time_init(void);

/***********************************************************************
 * Static data declarations
 */

/* static char *port=PORT_STR;*/
static char *host=SSL_CONNECT_NAME;
static char *t_cert_file=NULL;
static char *t_key_file=NULL;
static char *CApath=NULL;
static char *CAfile=NULL;
static char *tm_cipher=NULL;
static int tm_verify = SSL_VERIFY_NONE;
static int maxTime = SECONDS;
static SSL_CTX *tm_ctx=NULL;
static SSL_METHOD *s_time_meth=NULL;
static char *s_www_path=NULL;
static long bytes_read=0; 
static int st_bugs=0;
static int perform=0;
#ifdef FIONBIO
static int t_nbio=0;
#endif
#ifdef WIN32
static int exitNow = 0;		/* Set when it's time to exit main */
#endif

static void s_time_init(void)
	{
	host=SSL_CONNECT_NAME;
	t_cert_file=NULL;
	t_key_file=NULL;
	CApath=NULL;
	CAfile=NULL;
	tm_cipher=NULL;
	tm_verify = SSL_VERIFY_NONE;
	maxTime = SECONDS;
	tm_ctx=NULL;
	s_time_meth=NULL;
	s_www_path=NULL;
	bytes_read=0; 
	st_bugs=0;
	perform=0;

#ifdef FIONBIO
	t_nbio=0;
#endif
#ifdef WIN32
	exitNow = 0;		/* Set when it's time to exit main */
#endif
	}

/***********************************************************************
 * usage - display usage message
 */
static void s_time_usage(void)
{
	static char umsg[] = "\
-time arg     - max number of seconds to collect data, default %d\n\
-verify arg   - turn on peer certificate verification, arg == depth\n\
-cert arg     - certificate file to use, PEM format assumed\n\
-key arg      - RSA file to use, PEM format assumed, key is in cert file\n\
                file if not specified by this option\n\
-CApath arg   - PEM format directory of CA's\n\
-CAfile arg   - PEM format file of CA's\n\
-cipher       - prefered cipher to use, play with 'openssl ciphers'\n\n";

	printf( "usage: s_time <args>\n\n" );

	printf("-connect host:port - host:port to connect to (default is %s)\n",SSL_CONNECT_NAME);
#ifdef FIONBIO
	printf("-nbio         - Run with non-blocking IO\n");
	printf("-ssl2         - Just use SSLv2\n");
	printf("-ssl3         - Just use SSLv3\n");
	printf("-bugs         - Turn on SSL bug compatability\n");
	printf("-new          - Just time new connections\n");
	printf("-reuse        - Just time connection reuse\n");
	printf("-www page     - Retrieve 'page' from the site\n");
#endif
	printf( umsg,SECONDS );
}

/***********************************************************************
 * parseArgs - Parse command line arguments and initialize data
 *
 * Returns 0 if ok, -1 on bad args
 */
static int parseArgs(int argc, char **argv)
{
    int badop = 0;

    verify_depth=0;
    verify_error=X509_V_OK;

    argc--;
    argv++;

    while (argc >= 1) {
	if (strcmp(*argv,"-connect") == 0)
		{
		if (--argc < 1) goto bad;
		host= *(++argv);
		}
#if 0
	else if( strcmp(*argv,"-host") == 0)
		{
		if (--argc < 1) goto bad;
		host= *(++argv);
		}
	else if( strcmp(*argv,"-port") == 0)
		{
		if (--argc < 1) goto bad;
		port= *(++argv);
		}
#endif
	else if (strcmp(*argv,"-reuse") == 0)
		perform=2;
	else if (strcmp(*argv,"-new") == 0)
		perform=1;
	else if( strcmp(*argv,"-verify") == 0) {

	    tm_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
	    if (--argc < 1) goto bad;
	    verify_depth=atoi(*(++argv));
	    BIO_printf(bio_err,"verify depth is %d\n",verify_depth);

	} else if( strcmp(*argv,"-cert") == 0) {

	    if (--argc < 1) goto bad;
	    t_cert_file= *(++argv);

	} else if( strcmp(*argv,"-key") == 0) {

	    if (--argc < 1) goto bad;
	    t_key_file= *(++argv);

	} else if( strcmp(*argv,"-CApath") == 0) {

	    if (--argc < 1) goto bad;
	    CApath= *(++argv);

	} else if( strcmp(*argv,"-CAfile") == 0) {

	    if (--argc < 1) goto bad;
	    CAfile= *(++argv);

	} else if( strcmp(*argv,"-cipher") == 0) {

	    if (--argc < 1) goto bad;
	    tm_cipher= *(++argv);
	}
#ifdef FIONBIO
	else if(strcmp(*argv,"-nbio") == 0) {
	    t_nbio=1;
	}
#endif
	else if(strcmp(*argv,"-www") == 0)
		{
		if (--argc < 1) goto bad;
		s_www_path= *(++argv);
		}
	else if(strcmp(*argv,"-bugs") == 0)
	    st_bugs=1;
#ifndef NO_SSL2
	else if(strcmp(*argv,"-ssl2") == 0)
	    s_time_meth=SSLv2_client_method();
#endif
#ifndef NO_SSL3
	else if(strcmp(*argv,"-ssl3") == 0)
	    s_time_meth=SSLv3_client_method();
#endif
	else if( strcmp(*argv,"-time") == 0) {

	    if (--argc < 1) goto bad;
	    maxTime= atoi(*(++argv));
	}
	else {
	    BIO_printf(bio_err,"unknown option %s\n",*argv);
	    badop=1;
	    break;
	}

	argc--;
	argv++;
    }

    if (perform == 0) perform=3;

    if(badop) {
bad:
		s_time_usage();
		return -1;
    }

	return 0;			/* Valid args */
}

/***********************************************************************
 * TIME - time functions
 */
#define START	0
#define STOP	1

static double tm_Time_F(int s)
	{
	static double ret;
#ifdef TIMES
	static struct tms tstart,tend;

	if(s == START) {
		times(&tstart);
		return(0);
	} else {
		times(&tend);
		ret=((double)(tend.tms_utime-tstart.tms_utime))/HZ;
		return((ret == 0.0)?1e-6:ret);
	}
#else /* !times() */
	static struct timeb tstart,tend;
	long i;

	if(s == START) {
		ftime(&tstart);
		return(0);
	} else {
		ftime(&tend);
		i=(long)tend.millitm-(long)tstart.millitm;
		ret=((double)(tend.time-tstart.time))+((double)i)/1000.0;
		return((ret == 0.0)?1e-6:ret);
	}
#endif
}

/***********************************************************************
 * MAIN - main processing area for client
 *			real name depends on MONOLITH
 */
int MAIN(int argc, char **argv)
	{
	double totalTime = 0.0;
	int nConn = 0;
	SSL *scon=NULL;
	long finishtime=0;
	int ret=1,i;
	MS_STATIC char buf[1024*8];
	int ver;

	apps_startup();
	s_time_init();

	if (bio_err == NULL)
		bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);

#if !defined(NO_SSL2) && !defined(NO_SSL3)
	s_time_meth=SSLv23_client_method();
#elif !defined(NO_SSL3)
	s_time_meth=SSLv3_client_method();
#elif !defined(NO_SSL2)
	s_time_meth=SSLv2_client_method();
#endif

	/* parse the command line arguments */
	if( parseArgs( argc, argv ) < 0 )
		goto end;

	SSLeay_add_ssl_algorithms();
	if ((tm_ctx=SSL_CTX_new(s_time_meth)) == NULL) return(1);

	SSL_CTX_set_quiet_shutdown(tm_ctx,1);

	if (st_bugs) SSL_CTX_set_options(tm_ctx,SSL_OP_ALL);
	SSL_CTX_set_cipher_list(tm_ctx,tm_cipher);
	if(!set_cert_stuff(tm_ctx,t_cert_file,t_key_file)) 
		goto end;

	SSL_load_error_strings();

	if ((!SSL_CTX_load_verify_locations(tm_ctx,CAfile,CApath)) ||
		(!SSL_CTX_set_default_verify_paths(tm_ctx)))
		{
		/* BIO_printf(bio_err,"error seting default verify locations\n"); */
		ERR_print_errors(bio_err);
		/* goto end; */
		}

	if (tm_cipher == NULL)
		tm_cipher = getenv("SSL_CIPHER");

	if (tm_cipher == NULL ) {
		fprintf( stderr, "No CIPHER specified\n" );
/*		EXIT(1); */
	}

	if (!(perform & 1)) goto next;
	printf( "Collecting connection statistics for %d seconds\n", maxTime );

	/* Loop and time how long it takes to make connections */

	bytes_read=0;
	finishtime=(long)time(NULL)+maxTime;
	tm_Time_F(START);
	for (;;)
		{
		if (finishtime < time(NULL)) break;
#ifdef WIN32_STUFF

		if( flushWinMsgs(0) == -1 )
			goto end;

		if( waitingToDie || exitNow )		/* we're dead */
			goto end;
#endif

		if( (scon = doConnection( NULL )) == NULL )
			goto end;

		if (s_www_path != NULL)
			{
			sprintf(buf,"GET %s HTTP/1.0\r\n\r\n",s_www_path);
			SSL_write(scon,buf,strlen(buf));
			while ((i=SSL_read(scon,buf,sizeof(buf))) > 0)
				bytes_read+=i;
			}

#ifdef NO_SHUTDOWN
		SSL_set_shutdown(scon,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
#else
		SSL_shutdown(scon);
#endif
		SHUTDOWN2(SSL_get_fd(scon));

		nConn += 1;
		if (SSL_session_reused(scon))
			ver='r';
		else
			{
			ver=SSL_version(scon);
			if (ver == TLS1_VERSION)
				ver='t';
			else if (ver == SSL3_VERSION)
				ver='3';
			else if (ver == SSL2_VERSION)
				ver='2';
			else
				ver='*';
			}
		fputc(ver,stdout);
		fflush(stdout);

		SSL_free( scon );
		scon=NULL;
		}
	totalTime += tm_Time_F(STOP); /* Add the time for this iteration */

	i=(int)(time(NULL)-finishtime+maxTime);
	printf( "\n\n%d connections in %.2fs; %.2f connections/user sec, bytes read %ld\n", nConn, totalTime, ((double)nConn/totalTime),bytes_read);
	printf( "%d connections in %ld real seconds, %ld bytes read per connection\n",nConn,time(NULL)-finishtime+maxTime,bytes_read/nConn);

	/* Now loop and time connections using the same session id over and over */

next:
	if (!(perform & 2)) goto end;
	printf( "\n\nNow timing with session id reuse.\n" );

	/* Get an SSL object so we can reuse the session id */
	if( (scon = doConnection( NULL )) == NULL )
		{
		fprintf( stderr, "Unable to get connection\n" );
		goto end;
		}

	if (s_www_path != NULL)
		{
		sprintf(buf,"GET %s HTTP/1.0\r\n\r\n",s_www_path);
		SSL_write(scon,buf,strlen(buf));
		while (SSL_read(scon,buf,sizeof(buf)) > 0)
			;
		}
#ifdef NO_SHUTDOWN
	SSL_set_shutdown(scon,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
#else
	SSL_shutdown(scon);
#endif
	SHUTDOWN2(SSL_get_fd(scon));

	nConn = 0;
	totalTime = 0.0;

	finishtime=time(NULL)+maxTime;

	printf( "starting\n" );
	bytes_read=0;
	tm_Time_F(START);
		
	for (;;)
		{
		if (finishtime < time(NULL)) break;

#ifdef WIN32_STUFF
		if( flushWinMsgs(0) == -1 )
			goto end;

		if( waitingToDie || exitNow )	/* we're dead */
			goto end;
#endif

	 	if( (doConnection( scon )) == NULL )
			goto end;

		if (s_www_path)
			{
			sprintf(buf,"GET %s HTTP/1.0\r\n\r\n",s_www_path);
			SSL_write(scon,buf,strlen(buf));
			while ((i=SSL_read(scon,buf,sizeof(buf))) > 0)
				bytes_read+=i;
			}

#ifdef NO_SHUTDOWN
		SSL_set_shutdown(scon,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
#else
		SSL_shutdown(scon);
#endif
		SHUTDOWN2(SSL_get_fd(scon));
	
		nConn += 1;
		if (SSL_session_reused(scon))
			ver='r';
		else
			{
			ver=SSL_version(scon);
			if (ver == TLS1_VERSION)
				ver='t';
			else if (ver == SSL3_VERSION)
				ver='3';
			else if (ver == SSL2_VERSION)
				ver='2';
			else
				ver='*';
			}
		fputc(ver,stdout);
		fflush(stdout);
		}
	totalTime += tm_Time_F(STOP); /* Add the time for this iteration*/


	printf( "\n\n%d connections in %.2fs; %.2f connections/user sec, bytes read %ld\n", nConn, totalTime, ((double)nConn/totalTime),bytes_read);
	printf( "%d connections in %ld real seconds, %ld bytes read per connection\n",nConn,time(NULL)-finishtime+maxTime,bytes_read/nConn);

	ret=0;
end:
	if (scon != NULL) SSL_free(scon);

	if (tm_ctx != NULL)
		{
		SSL_CTX_free(tm_ctx);
		tm_ctx=NULL;
		}
	EXIT(ret);
	}

/***********************************************************************
 * doConnection - make a connection
 * Args:
 *		scon	= earlier ssl connection for session id, or NULL
 * Returns:
 *		SSL *	= the connection pointer.
 */
static SSL *doConnection(SSL *scon)
	{
	BIO *conn;
	SSL *serverCon;
	int width, i;
	fd_set readfds;

	if ((conn=BIO_new(BIO_s_connect())) == NULL)
		return(NULL);

/*	BIO_set_conn_port(conn,port);*/
	BIO_set_conn_hostname(conn,host);

	if (scon == NULL)
		serverCon=(SSL *)SSL_new(tm_ctx);
	else
		{
		serverCon=scon;
		SSL_set_connect_state(serverCon);
		}

	SSL_set_bio(serverCon,conn,conn);

#if 0
	if( scon != NULL )
		SSL_set_session(serverCon,SSL_get_session(scon));
#endif

	/* ok, lets connect */
	for(;;) {
		i=SSL_connect(serverCon);
		if (BIO_sock_should_retry(i))
			{
			BIO_printf(bio_err,"DELAY\n");

			i=SSL_get_fd(serverCon);
			width=i+1;
			FD_ZERO(&readfds);
			FD_SET(i,&readfds);
			/* Note: under VMS with SOCKETSHR the 2nd parameter
			 * is currently of type (int *) whereas under other
			 * systems it is (void *) if you don't have a cast it
			 * will choke the compiler: if you do have a cast then
			 * you can either go for (int *) or (void *).
			 */
			select(width,(void *)&readfds,NULL,NULL,NULL);
			continue;
			}
		break;
		}
	if(i <= 0)
		{
		BIO_printf(bio_err,"ERROR\n");
		if (verify_error != X509_V_OK)
			BIO_printf(bio_err,"verify error:%s\n",
				X509_verify_cert_error_string(verify_error));
		else
			ERR_print_errors(bio_err);
		if (scon == NULL)
			SSL_free(serverCon);
		return NULL;
		}

	return serverCon;
	}