archive_openssl_evp_private.h

/*-
 * Copyright (c) 2003-2007 Tim Kientzle
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``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(S) 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.
 */

#ifndef ARCHIVE_OPENSSL_EVP_PRIVATE_H_INCLUDED
#define ARCHIVE_OPENSSL_EVP_PRIVATE_H_INCLUDED

#ifndef __LIBARCHIVE_BUILD
#error This header is only to be used internally to libarchive.
#endif

#include <openssl/evp.h>
#include <openssl/opensslv.h>

#if OPENSSL_VERSION_NUMBER < 0x10100000L || \
    (defined(LIBRESSL_VERSION_NUMBER) && LIBRESSL_VERSION_NUMBER < 0x2070000fL)
#include <stdlib.h> /* malloc, free */
#include <string.h> /* memset */
static inline EVP_MD_CTX *EVP_MD_CTX_new(void)
{
	EVP_MD_CTX *ctx = calloc(1, sizeof(EVP_MD_CTX));
	return ctx;
}

static inline void EVP_MD_CTX_free(EVP_MD_CTX *ctx)
{
	EVP_MD_CTX_cleanup(ctx);
	memset(ctx, 0, sizeof(*ctx));
	free(ctx);
}
#endif

#endif