ossrv_pub/crypto_utility_functions_api/inc/stdapis/openssl/comp.h
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     1 /*
       
     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description: 
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 
       
    20 #ifndef HEADER_COMP_H
       
    21 #define HEADER_COMP_H
       
    22 
       
    23 #if (defined(__SYMBIAN32__) && !defined(SYMBIAN))
       
    24 #define SYMBIAN
       
    25 #endif
       
    26 
       
    27 #ifdef SYMBIAN
       
    28 #include <e32def.h>
       
    29 #endif
       
    30 #include <openssl/crypto.h>
       
    31 
       
    32 #ifdef  __cplusplus
       
    33 extern "C" {
       
    34 #endif
       
    35 #ifdef SYMBIAN
       
    36 #include <e32def.h>
       
    37 #endif
       
    38 typedef struct comp_ctx_st COMP_CTX;
       
    39 
       
    40 typedef struct comp_method_st
       
    41 	{
       
    42 	int type;		/* NID for compression library */
       
    43 	const char *name;	/* A text string to identify the library */
       
    44 	int (*init)(COMP_CTX *ctx);
       
    45 	void (*finish)(COMP_CTX *ctx);
       
    46 	int (*compress)(COMP_CTX *ctx,
       
    47 			unsigned char *out, unsigned int olen,
       
    48 			unsigned char *in, unsigned int ilen);
       
    49 	int (*expand)(COMP_CTX *ctx,
       
    50 		      unsigned char *out, unsigned int olen,
       
    51 		      unsigned char *in, unsigned int ilen);
       
    52 	/* The following two do NOTHING, but are kept for backward compatibility */
       
    53 	long (*ctrl)(void);
       
    54 	long (*callback_ctrl)(void);
       
    55 	} COMP_METHOD;
       
    56 
       
    57 struct comp_ctx_st
       
    58 	{
       
    59 	COMP_METHOD *meth;
       
    60 	unsigned long compress_in;
       
    61 	unsigned long compress_out;
       
    62 	unsigned long expand_in;
       
    63 	unsigned long expand_out;
       
    64 
       
    65 	CRYPTO_EX_DATA	ex_data;
       
    66 	};
       
    67 
       
    68 
       
    69 IMPORT_C COMP_CTX *COMP_CTX_new(COMP_METHOD *meth);
       
    70 IMPORT_C void COMP_CTX_free(COMP_CTX *ctx);
       
    71 IMPORT_C int COMP_compress_block(COMP_CTX *ctx, unsigned char *out, int olen,
       
    72 	unsigned char *in, int ilen);
       
    73 IMPORT_C int COMP_expand_block(COMP_CTX *ctx, unsigned char *out, int olen,
       
    74 	unsigned char *in, int ilen);
       
    75 IMPORT_C COMP_METHOD *COMP_rle(void );
       
    76 IMPORT_C COMP_METHOD *COMP_zlib(void );
       
    77 
       
    78 /* BEGIN ERROR CODES */
       
    79 /* The following lines are auto generated by the script mkerr.pl. Any changes
       
    80  * made after this point may be overwritten when the script is next run.
       
    81  */
       
    82 IMPORT_C void ERR_load_COMP_strings(void);
       
    83 
       
    84 /* Error codes for the COMP functions. */
       
    85 
       
    86 /* Function codes. */
       
    87 
       
    88 /* Reason codes. */
       
    89 
       
    90 #ifdef  __cplusplus
       
    91 }
       
    92 #endif
       
    93 #endif