#ifndef HEADER_COMP_H

#define HEADER_COMP_H

#include <openssl/crypto.h>

#ifdef  __cplusplus

extern "C" {

#endif

typedef struct comp_method_st

	{

	int type;		/* NID for compression library */

	const char *name;	/* A text string to identify the library */

	int (*init)();

	void (*finish)();

	int (*compress)();

	int (*expand)();

	long (*ctrl)();

	long (*callback_ctrl)();

	} COMP_METHOD;

typedef struct comp_ctx_st

	{

	COMP_METHOD *meth;

	unsigned long compress_in;

	unsigned long compress_out;

	unsigned long expand_in;

	unsigned long expand_out;

	CRYPTO_EX_DATA	ex_data;

	} COMP_CTX;

COMP_CTX *COMP_CTX_new(COMP_METHOD *meth);

void COMP_CTX_free(COMP_CTX *ctx);

int COMP_compress_block(COMP_CTX *ctx, unsigned char *out, int olen,

	unsigned char *in, int ilen);

int COMP_expand_block(COMP_CTX *ctx, unsigned char *out, int olen,

	unsigned char *in, int ilen);

COMP_METHOD *COMP_rle(void );

COMP_METHOD *COMP_zlib(void );

/* BEGIN ERROR CODES */

/* The following lines are auto generated by the script mkerr.pl. Any changes

 * made after this point may be overwritten when the script is next run.

 */

void ERR_load_COMP_strings(void);

/* Error codes for the COMP functions. */

/* Function codes. */

/* Reason codes. */

#ifdef  __cplusplus

}

#endif

#endif