/*

* Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

* Generates C code that initialises a variable to hold some random data.

*

*/

/**

 @file

*/

#include <openssl/rand.h>

static void gen_random(int len)

    {

    unsigned char data[len];

    int i, j;

    RAND_bytes(data, len);

    printf("unsigned char random[] =");

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

        {

        printf("\n\t\"");

        for (j = i ; j < sizeof(data) && j < (i + 16) ; ++j)

            {

            printf("\\x%02x", data[j]);

            }

        printf("\"");

        }

    printf(";\n");

    }

static void badUsage()

    {

    printf("gen_random [BYTES]\n");

    exit(1);

    }

int main(int argc, char* argv[])

    {

    int bytes = 256;

    if (argc > 2)

        badUsage();

    else if (argc == 2)

        {

        bytes = atoi(argv[1]);

        if (bytes < 1)

            badUsage();

        }

    gen_random(bytes);

    return 0;

    }