/* x509spki.c */

/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL

 * project 1999.

 */

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

 * Copyright (c) 1999 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

 *    licensing@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.

 * ====================================================================

 *

 * This product includes cryptographic software written by Eric Young

 * (eay@cryptsoft.com).  This product includes software written by Tim

 * Hudson (tjh@cryptsoft.com).

 *

 */

#include <stdio.h>

#include "cryptlib.h"

#include <openssl/x509.h>

EXPORT_C int NETSCAPE_SPKI_set_pubkey(NETSCAPE_SPKI *x, EVP_PKEY *pkey)

{

	if ((x == NULL) || (x->spkac == NULL)) return(0);

	return(X509_PUBKEY_set(&(x->spkac->pubkey),pkey));

}

EXPORT_C EVP_PKEY *NETSCAPE_SPKI_get_pubkey(NETSCAPE_SPKI *x)

{

	if ((x == NULL) || (x->spkac == NULL))

		return(NULL);

	return(X509_PUBKEY_get(x->spkac->pubkey));

}

/* Load a Netscape SPKI from a base64 encoded string */

EXPORT_C NETSCAPE_SPKI * NETSCAPE_SPKI_b64_decode(const char *str, int len)

{

	unsigned char *spki_der;

	const unsigned char *p;

	int spki_len;

	NETSCAPE_SPKI *spki;

	if(len <= 0) len = strlen(str);

	if (!(spki_der = OPENSSL_malloc(len + 1))) {

		X509err(X509_F_NETSCAPE_SPKI_B64_DECODE, ERR_R_MALLOC_FAILURE);

		return NULL;

	}

	spki_len = EVP_DecodeBlock(spki_der, (const unsigned char *)str, len);

	if(spki_len < 0) {

		X509err(X509_F_NETSCAPE_SPKI_B64_DECODE,

						X509_R_BASE64_DECODE_ERROR);

		OPENSSL_free(spki_der);

		return NULL;

	}

	p = spki_der;

	spki = d2i_NETSCAPE_SPKI(NULL, &p, spki_len);

	OPENSSL_free(spki_der);

	return spki;

}

/* Generate a base64 encoded string from an SPKI */

EXPORT_C char * NETSCAPE_SPKI_b64_encode(NETSCAPE_SPKI *spki)

{

	unsigned char *der_spki, *p;

	char *b64_str;

	int der_len;

	der_len = i2d_NETSCAPE_SPKI(spki, NULL);

	der_spki = OPENSSL_malloc(der_len);

	b64_str = OPENSSL_malloc(der_len * 2);

	if(!der_spki || !b64_str) {

		X509err(X509_F_NETSCAPE_SPKI_B64_ENCODE, ERR_R_MALLOC_FAILURE);

		return NULL;

	}

	p = der_spki;

	i2d_NETSCAPE_SPKI(spki, &p);

	EVP_EncodeBlock((unsigned char *)b64_str, der_spki, der_len);

	OPENSSL_free(der_spki);

	return b64_str;

}