/*
 * Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#ifndef OPENSSL_COMP_H
#define OPENSSL_COMP_H
#pragma once

#include <openssl/macros.h>
#ifndef OPENSSL_NO_DEPRECATED_3_0
#define HEADER_COMP_H
#endif

#include <openssl/opensslconf.h>

#ifndef OPENSSL_NO_COMP
#include <openssl/crypto.h>
#include <openssl/comperr.h>
#ifdef __cplusplus
extern "C"
{
#endif

    COMP_CTX* COMP_CTX_new(COMP_METHOD* meth);
    const COMP_METHOD* COMP_CTX_get_method(const COMP_CTX* ctx);
    int COMP_CTX_get_type(const COMP_CTX* comp);
    int COMP_get_type(const COMP_METHOD* meth);
    const char* COMP_get_name(const COMP_METHOD* meth);
    void COMP_CTX_free(COMP_CTX* ctx);

    int COMP_compress_block(COMP_CTX* ctx, unsigned char* out, int olen, unsigned char* in, int ilen);
    int COMP_expand_block(COMP_CTX* ctx, unsigned char* out, int olen, unsigned char* in, int ilen);

    COMP_METHOD* COMP_zlib(void);

#ifndef OPENSSL_NO_DEPRECATED_1_1_0
#define COMP_zlib_cleanup() \
    while (0)               \
    continue
#endif

#ifdef OPENSSL_BIO_H
#ifdef ZLIB
    const BIO_METHOD* BIO_f_zlib(void);
#endif
#endif

#ifdef __cplusplus
}
#endif
#endif
#endif