/* ====================================================================

 * Copyright (c) 2004 The OpenSSL Project.  All rights reserved.

 *

 * 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 above 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 acknowledgment:

 *    "This product includes software developed by the OpenSSL Project

 *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"

 *

 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to

 *    endorse or promote products derived from this software without

 *    prior written permission. For written permission, please contact

 *    openssl-core@openssl.org.

 *

 * 5. Products derived from this software may not be called "OpenSSL"

 *    nor may "OpenSSL" appear in their names without prior written

 *    permission of the OpenSSL Project.

 *

 * 6. Redistributions of any form whatsoever must retain the following

 *    acknowledgment:

 *    "This product includes software developed by the OpenSSL Project

 *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"

 *

 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY

 * EXPRESSED 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 OpenSSL PROJECT OR

 * ITS 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.

 *

 */

#include <string.h>

#include "apps.h"

#include <openssl/bn.h>

#undef PROG

#define PROG prime_main

int MAIN(int, char **);

int MAIN(int argc, char **argv)

    {

    int hex=0;

    int checks=20;

    BIGNUM *bn=NULL;

    BIO *bio_out;

    apps_startup();

    if (bio_err == NULL)

	if ((bio_err=BIO_new(BIO_s_file())) != NULL)

	    BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);

    --argc;

    ++argv;

    while (argc >= 1 && **argv == '-')

	{

	if(!strcmp(*argv,"-hex"))

	    hex=1;

	else if(!strcmp(*argv,"-checks"))

	    if(--argc < 1)

		goto bad;

	    else

		checks=atoi(*++argv);

	else

	    {

	    BIO_printf(bio_err,"Unknown option '%s'\n",*argv);

	    goto bad;

	    }

	--argc;

	++argv;

	}

    if (argv[0] == NULL)

	{

	BIO_printf(bio_err,"No prime specified\n");

	goto bad;

	}

   if ((bio_out=BIO_new(BIO_s_file())) != NULL)

	{

	BIO_set_fp(bio_out,stdout,BIO_NOCLOSE);

#ifdef OPENSSL_SYS_VMS

	    {

	    BIO *tmpbio = BIO_new(BIO_f_linebuffer());

	    bio_out = BIO_push(tmpbio, bio_out);

	    }

#endif

	}

    if(hex)

	BN_hex2bn(&bn,argv[0]);

    else

	BN_dec2bn(&bn,argv[0]);

    BN_print(bio_out,bn);

    BIO_printf(bio_out," is %sprime\n",

	       BN_is_prime_ex(bn,checks,NULL,NULL) ? "" : "not ");

    BN_free(bn);

    BIO_free_all(bio_out);

    return 0;

    bad:

    BIO_printf(bio_err,"options are\n");

    BIO_printf(bio_err,"%-14s hex\n","-hex");

    BIO_printf(bio_err,"%-14s number of checks\n","-checks <n>");

    return 1;

    }