#ifndef HEADER_COMP_H#define HEADER_COMP_H#include <openssl/crypto.h>#ifdef  __cplusplusextern "C" {#endiftypedef 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