/*!
 * \file
 * \ingroup misc
 * \brief the elc file header data format and supporting functions.
 */
#ifndef	__ELC_IO_H__
#define __ELC_IO_H__

#include "../md5.h"

typedef char MAGIC_NUMBER[4];
typedef unsigned char VERSION_NUMBER[4];

/*!
 * the header structure for a file.
 */
typedef struct
{
	MAGIC_NUMBER magic;	/*!< the file magic number */
	VERSION_NUMBER version; /*!< the file version number */
	MD5_DIGEST md5;		/*!< the MD5 digest of the file */
	int header_offset;	/*!< the header offset */
} elc_file_header;

#ifdef	ZLIB
int read_and_check_elc_header(gzFile* file, const MAGIC_NUMBER magic, const VERSION_NUMBER version, const char* filename);
#else	//ZLIB
int read_and_check_elc_header(FILE* file, const MAGIC_NUMBER magic, const VERSION_NUMBER version, const char* filename);
#endif	//ZLIB

#endif