include/openssl/comp.h

   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
  25 extern "C" {
  26 # endif
  27
  28
  29
  30 COMP_CTX *COMP_CTX_new(COMP_METHOD *meth);
  31 const COMP_METHOD *COMP_CTX_get_method(const COMP_CTX *ctx);
  32 int COMP_CTX_get_type(const COMP_CTX* comp);
  33 int COMP_get_type(const COMP_METHOD *meth);
  34 const char *COMP_get_name(const COMP_METHOD *meth);
  35 void COMP_CTX_free(COMP_CTX *ctx);
  36
  37 int COMP_compress_block(COMP_CTX *ctx, unsigned char *out, int olen,
  38                         unsigned char *in, int ilen);
  39 int COMP_expand_block(COMP_CTX *ctx, unsigned char *out, int olen,
  40                       unsigned char *in, int ilen);
  41
  42 COMP_METHOD *COMP_zlib(void);
  43 COMP_METHOD *COMP_zlib_oneshot(void);
  44 COMP_METHOD *COMP_brotli(void);
  45 COMP_METHOD *COMP_brotli_oneshot(void);
  46 COMP_METHOD *COMP_zstd(void);
  47 COMP_METHOD *COMP_zstd_oneshot(void);
  48
  49 #ifndef OPENSSL_NO_DEPRECATED_1_1_0
  50 # define COMP_zlib_cleanup() while(0) continue
  51 #endif
  52
  53 # ifdef OPENSSL_BIO_H
  54 const BIO_METHOD *BIO_f_zlib(void);
  55 const BIO_METHOD *BIO_f_brotli(void);
  56 const BIO_METHOD *BIO_f_zstd(void);
  57 # endif
  58
  59
  60 #  ifdef  __cplusplus
  61 }
  62 #  endif
  63 # endif
  64 #endif