include/openssl/comp.h

   1 /* ====================================================================
   2  * Copyright (c) 1999-2015 The OpenSSL Project.  All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  *
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  *
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in
  13  *    the documentation and/or other materials provided with the
  14  *    distribution.
  15  *
  16  * 3. All advertising materials mentioning features or use of this
  17  *    software must display the following acknowledgment:
  18  *    "This product includes software developed by the OpenSSL Project
  19  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  20  *
  21  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  22  *    endorse or promote products derived from this software without
  23  *    prior written permission. For written permission, please contact
  24  *    openssl-core@OpenSSL.org.
  25  *
  26  * 5. Products derived from this software may not be called "OpenSSL"
  27  *    nor may "OpenSSL" appear in their names without prior written
  28  *    permission of the OpenSSL Project.
  29  *
  30  * 6. Redistributions of any form whatsoever must retain the following
  31  *    acknowledgment:
  32  *    "This product includes software developed by the OpenSSL Project
  33  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  34  *
  35  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  36  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  37  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  38  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  39  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  40  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  41  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  42  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  43  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  44  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  45  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  46  * OF THE POSSIBILITY OF SUCH DAMAGE.
  47  * ====================================================================
  48  *
  49  * This product includes cryptographic software written by Eric Young
  50  * (eay@cryptsoft.com).  This product includes software written by Tim
  51  * Hudson (tjh@cryptsoft.com).
  52  *
  53  */
  54
  55
  56 #ifndef HEADER_COMP_H
  57 # define HEADER_COMP_H
  58
  59 # include <openssl/opensslconf.h>
  60
  61 # ifndef OPENSSL_NO_COMP
  62 # include <openssl/crypto.h>
  63 # ifdef  __cplusplus
  64 extern "C" {
  65 # endif
  66
  67
  68
  69 COMP_CTX *COMP_CTX_new(COMP_METHOD *meth);
  70 const COMP_METHOD *COMP_CTX_get_method(const COMP_CTX *ctx);
  71 int COMP_CTX_get_type(const COMP_CTX* comp);
  72 int COMP_get_type(const COMP_METHOD *meth);
  73 const char *COMP_get_name(const COMP_METHOD *meth);
  74 void COMP_CTX_free(COMP_CTX *ctx);
  75
  76 int COMP_compress_block(COMP_CTX *ctx, unsigned char *out, int olen,
  77                         unsigned char *in, int ilen);
  78 int COMP_expand_block(COMP_CTX *ctx, unsigned char *out, int olen,
  79                       unsigned char *in, int ilen);
  80
  81 COMP_METHOD *COMP_zlib(void);
  82
  83 #if OPENSSL_API_COMPAT < 0x10100000L
  84 #define COMP_zlib_cleanup() while(0) continue
  85 #endif
  86
  87 # ifdef HEADER_BIO_H
  88 #  ifdef ZLIB
  89 const BIO_METHOD *BIO_f_zlib(void);
  90 #  endif
  91 # endif
  92
  93 /* BEGIN ERROR CODES */
  94 /*
  95  * The following lines are auto generated by the script mkerr.pl. Any changes
  96  * made after this point may be overwritten when the script is next run.
  97  */
  98 void ERR_load_COMP_strings(void);
  99
 100 /* Error codes for the COMP functions. */
 101
 102 /* Function codes. */
 103 # define COMP_F_BIO_ZLIB_FLUSH                            99
 104 # define COMP_F_BIO_ZLIB_NEW                              100
 105 # define COMP_F_BIO_ZLIB_READ                             101
 106 # define COMP_F_BIO_ZLIB_WRITE                            102
 107
 108 /* Reason codes. */
 109 # define COMP_R_ZLIB_DEFLATE_ERROR                        99
 110 # define COMP_R_ZLIB_INFLATE_ERROR                        100
 111 # define COMP_R_ZLIB_NOT_SUPPORTED                        101
 112
 113 #ifdef  __cplusplus
 114 }
 115 # endif
 116 # endif
 117
 118 #endif