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      1 /*
      2  * Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.
      3  *
      4  * Licensed under the OpenSSL license (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 HEADER_COMP_H
     11 # define HEADER_COMP_H
     12 
     13 # include <openssl/opensslconf.h>
     14 
     15 # ifndef OPENSSL_NO_COMP
     16 # include <openssl/crypto.h>
     17 # include <openssl/comperr.h>
     18 # ifdef  __cplusplus
     19 extern "C" {
     20 # endif
     21 
     22 
     23 
     24 COMP_CTX *COMP_CTX_new(COMP_METHOD *meth);
     25 const COMP_METHOD *COMP_CTX_get_method(const COMP_CTX *ctx);
     26 int COMP_CTX_get_type(const COMP_CTX* comp);
     27 int COMP_get_type(const COMP_METHOD *meth);
     28 const char *COMP_get_name(const COMP_METHOD *meth);
     29 void COMP_CTX_free(COMP_CTX *ctx);
     30 
     31 int COMP_compress_block(COMP_CTX *ctx, unsigned char *out, int olen,
     32                         unsigned char *in, int ilen);
     33 int COMP_expand_block(COMP_CTX *ctx, unsigned char *out, int olen,
     34                       unsigned char *in, int ilen);
     35 
     36 COMP_METHOD *COMP_zlib(void);
     37 
     38 #if OPENSSL_API_COMPAT < 0x10100000L
     39 #define COMP_zlib_cleanup() while(0) continue
     40 #endif
     41 
     42 # ifdef HEADER_BIO_H
     43 #  ifdef ZLIB
     44 const BIO_METHOD *BIO_f_zlib(void);
     45 #  endif
     46 # endif
     47 
     48 
     49 #  ifdef  __cplusplus
     50 }
     51 #  endif
     52 # endif
     53 #endif
     54