1/*
2 * Copyright 2015-2016 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
10struct comp_method_st {
11 int type; /* NID for compression library */
12 const char *name; /* A text string to identify the library */
13 int (*init) (COMP_CTX *ctx);
14 void (*finish) (COMP_CTX *ctx);
15 int (*compress) (COMP_CTX *ctx,
16 unsigned char *out, unsigned int olen,
17 unsigned char *in, unsigned int ilen);
18 int (*expand) (COMP_CTX *ctx,
19 unsigned char *out, unsigned int olen,
20 unsigned char *in, unsigned int ilen);
21};
22
23struct comp_ctx_st {
24 struct comp_method_st *meth;
25 unsigned long compress_in;
26 unsigned long compress_out;
27 unsigned long expand_in;
28 unsigned long expand_out;
29 void* data;
30};
31