/* crypto/rand/randtest.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.]

 */

/*

 © Portions copyright (c) 2006 Nokia Corporation.  All rights reserved.

 */

#include <stdio.h>

#include <stdlib.h>

#include <errno.h>

#include <openssl/rand.h>

#ifndef SYMBIAN

#include "../e_os.h"

#else

#include "e_os.h"

#endif

#ifdef SYMBIAN

#ifdef stdin

#undef stdin

#endif

#ifdef stdout

#undef stdout

#endif

#ifdef stderr

#undef stderr

#endif

#define stdin fp_stdin

#define stdout fp_stdout

#define stderr fp_stderr

extern FILE *fp_stdout;

extern FILE *fp_stderr;

#endif

/* some FIPS 140-1 random number test */

/* some simple tests */

#ifndef SYMBIAN

int main(int argc,char **argv)

#else

int rand_main(int argc,char **argv)

#endif

	{

	unsigned char buf[2500];

	int i,j,k,s,sign,nsign,err=0;

	unsigned long n1;

	unsigned long n2[16];

	unsigned long runs[2][34];

	/*double d; */

	long d;

	i = RAND_pseudo_bytes(buf,2500);

	if(errno==ENOMEM)

  {

	 return 1;

	}  

	if (i < 0)

		{

		fprintf (stdout,"init failed, the rand method is not properly installed\n");

		err++;

		goto err;

		}

	n1=0;

	for (i=0; i<16; i++) n2[i]=0;

	for (i=0; i<34; i++) runs[0][i]=runs[1][i]=0;

	/* test 1 and 2 */

	sign=0;

	nsign=0;

	for (i=0; i<2500; i++)

		{

		j=buf[i];

		n2[j&0x0f]++;

		n2[(j>>4)&0x0f]++;

		for (k=0; k<8; k++)

			{

			s=(j&0x01);

			if (s == sign)

				nsign++;

			else

				{

				if (nsign > 34) nsign=34;

				if (nsign != 0)

					{

					runs[sign][nsign-1]++;

					if (nsign > 6)

						runs[sign][5]++;

					}

				sign=s;

				nsign=1;

				}

			if (s) n1++;

			j>>=1;

			}

		}

		if (nsign > 34) nsign=34;

		if (nsign != 0) runs[sign][nsign-1]++;

	/* test 1 */

	if (!((9654 < n1) && (n1 < 10346)))

		{

		fprintf(stdout,"test 1 failed, X=%lu\n",n1);

		err++;

		}

	fprintf(stdout,"rand test 1 done\n");

	/* test 2 */

#ifdef undef

	d=0;

	for (i=0; i<16; i++)

		d+=n2[i]*n2[i];

	d=d*16.0/5000.0-5000.0;

	if (!((1.03 < d) && (d < 57.4)))

		{

		fprintf(stdout,"test 2 failed, X=%.2f\n",d);

		err++;

		}

#endif

	d=0;

	for (i=0; i<16; i++)

		d+=n2[i]*n2[i];

	d=(d*8)/25-500000;

	if (!((103 < d) && (d < 5740)))

		{

		fprintf(stdout,"test 2 failed, X=%ld.%02ld\n",d/100L,d%100L);

		err++;

		}

	fprintf(stdout,"rand test 2 done\n");

	/* test 3 */

	for (i=0; i<2; i++)

		{

		if (!((2267 < runs[i][0]) && (runs[i][0] < 2733)))

			{

			fprintf(stdout,"test 3 failed, bit=%d run=%d num=%lu\n",

				i,1,runs[i][0]);

			err++;

			}

		if (!((1079 < runs[i][1]) && (runs[i][1] < 1421)))

			{

			fprintf(stdout,"test 3 failed, bit=%d run=%d num=%lu\n",

				i,2,runs[i][1]);

			err++;

			}

		if (!(( 502 < runs[i][2]) && (runs[i][2] <  748)))

			{

			fprintf(stdout,"test 3 failed, bit=%d run=%d num=%lu\n",

				i,3,runs[i][2]);

			err++;

			}

		if (!(( 223 < runs[i][3]) && (runs[i][3] <  402)))

			{

			fprintf(stdout,"test 3 failed, bit=%d run=%d num=%lu\n",

				i,4,runs[i][3]);

			err++;

			}

		if (!((  90 < runs[i][4]) && (runs[i][4] <  223)))

			{

			fprintf(stdout,"test 3 failed, bit=%d run=%d num=%lu\n",

				i,5,runs[i][4]);

			err++;

			}

		if (!((  90 < runs[i][5]) && (runs[i][5] <  223)))

			{

			fprintf(stdout,"test 3 failed, bit=%d run=%d num=%lu\n",

				i,6,runs[i][5]);

			err++;

			}

		}

	fprintf(stdout,"rand test 3 done\n");

	/* test 4 */

	if (runs[0][33] != 0)

		{

		fprintf(stdout,"test 4 failed, bit=%d run=%d num=%lu\n",

			0,34,runs[0][33]);

		err++;

		}

	if (runs[1][33] != 0)

		{

		fprintf(stdout,"test 4 failed, bit=%d run=%d num=%lu\n",

			1,34,runs[1][33]);

		err++;

		}

	fprintf(stdout,"rand test 4 done\n");

 err:

	err=((err)?1:0);

#ifdef OPENSSL_SYS_NETWARE

    if (err) fprintf(stdout,"ERROR: %d\n", err);

#endif

    fprintf(stdout,"Test case passed\n");

	//EXIT(err);

	return(err);

	}