1/*
2 * Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10#ifndef OPENSSL_COMP_H
11# define OPENSSL_COMP_H
12# pragma once
13
14# include <openssl/macros.h>
15# ifndef OPENSSL_NO_DEPRECATED_3_0
16# define HEADER_COMP_H
17# endif
18
19# include <openssl/opensslconf.h>
20
21# ifndef OPENSSL_NO_COMP
22# include <openssl/crypto.h>
23# include <openssl/comperr.h>
24# ifdef __cplusplus
25extern "C" {
26# endif
27
28
29
30COMP_CTX *COMP_CTX_new(COMP_METHOD *meth);
31const COMP_METHOD *COMP_CTX_get_method(const COMP_CTX *ctx);
32int COMP_CTX_get_type(const COMP_CTX* comp);
33int COMP_get_type(const COMP_METHOD *meth);
34const char *COMP_get_name(const COMP_METHOD *meth);
35void COMP_CTX_free(COMP_CTX *ctx);
36
37int COMP_compress_block(COMP_CTX *ctx, unsigned char *out, int olen,
38 unsigned char *in, int ilen);
39int COMP_expand_block(COMP_CTX *ctx, unsigned char *out, int olen,
40 unsigned char *in, int ilen);
41
42COMP_METHOD *COMP_zlib(void);
43
44#ifndef OPENSSL_NO_DEPRECATED_1_1_0
45# define COMP_zlib_cleanup() while(0) continue
46#endif
47
48# ifdef OPENSSL_BIO_H
49# ifdef ZLIB
50const BIO_METHOD *BIO_f_zlib(void);
51# endif
52# endif
53
54
55# ifdef __cplusplus
56}
57# endif
58# endif
59#endif
60