tried to adjust timers using formulae

[picodrive.git] / unzip / unzip.h

#ifndef __UNZIP_H\r
#define __UNZIP_H\r
\r
#include <stdio.h>\r
\r
#ifdef __cplusplus\r
extern "C" {\r
#endif\r
\r
// notaz: something's missing this\r
#ifndef UINT16\r
#define UINT32 unsigned int\r
#define UINT16 unsigned short\r
#define UINT8  unsigned char\r
#endif\r
\r
/***************************************************************************\r
 * Support for retrieving files from zipfiles\r
 ***************************************************************************/\r
\r
struct zipent {\r
	UINT32	cent_file_header_sig;\r
	UINT8	version_made_by;\r
	UINT8	host_os;\r
	UINT8	version_needed_to_extract;\r
	UINT8	os_needed_to_extract;\r
	UINT16	general_purpose_bit_flag;\r
	UINT16	compression_method;\r
	UINT16	last_mod_file_time;\r
	UINT16	last_mod_file_date;\r
	UINT32	crc32;\r
	UINT32	compressed_size;\r
	UINT32	uncompressed_size;\r
	UINT16	filename_length;\r
	UINT16	extra_field_length;\r
	UINT16	file_comment_length;\r
	UINT16	disk_number_start;\r
	UINT16	internal_file_attrib;\r
	UINT32	external_file_attrib;\r
	UINT32	offset_lcl_hdr_frm_frst_disk;\r
	char*   name; /* 0 terminated */\r
};\r
\r
typedef struct _ZIP {\r
	char* zip; /* zip name */\r
	FILE* fp; /* zip handler */\r
	long length; /* length of zip file */\r
\r
	char* ecd; /* end_of_cent_dir data */\r
	unsigned ecd_length; /* end_of_cent_dir length */\r
\r
	char* cd; /* cent_dir data */\r
\r
	unsigned cd_pos; /* position in cent_dir */\r
\r
	struct zipent ent; /* buffer for readzip */\r
\r
	/* end_of_cent_dir */\r
	UINT32	end_of_cent_dir_sig;\r
	UINT16	number_of_this_disk;\r
	UINT16	number_of_disk_start_cent_dir;\r
	UINT16	total_entries_cent_dir_this_disk;\r
	UINT16	total_entries_cent_dir;\r
	UINT32	size_of_cent_dir;\r
	UINT32	offset_to_start_of_cent_dir;\r
	UINT16	zipfile_comment_length;\r
	char*	zipfile_comment; /* pointer in ecd */\r
} ZIP;\r
\r
/* Opens a zip stream for reading\r
   return:\r
     !=0 success, zip stream\r
     ==0 error\r
*/\r
ZIP* openzip(const char* path);\r
\r
/* Closes a zip stream */\r
void closezip(ZIP* zip);\r
\r
/* Reads the current entry from a zip stream\r
   in:\r
     zip opened zip\r
   return:\r
     !=0 success\r
     ==0 error\r
*/\r
struct zipent* readzip(ZIP* zip);\r
\r
/* Suspend access to a zip file (release file handler)\r
   in:\r
      zip opened zip\r
   note:\r
     A suspended zip is automatically reopened at first call of\r
     readuncompressd() or readcompressed() functions\r
*/\r
void suspendzip(ZIP* zip);\r
\r
/* Resets a zip stream to the first entry\r
   in:\r
     zip opened zip\r
   note:\r
     ZIP file must be opened and not suspended\r
*/\r
void rewindzip(ZIP* zip);\r
\r
/* Read compressed data from a zip entry\r
   in:\r
     zip opened zip\r
     ent entry to read\r
   out:\r
     data buffer for data, ent.compressed_size UINT8s allocated by the caller\r
   return:\r
     ==0 success\r
     <0 error\r
*/\r
int readcompresszip(ZIP* zip, struct zipent* ent, char* data);\r
\r
/* Read decompressed data from a zip entry\r
   in:\r
     zip zip stream open\r
     ent entry to read\r
   out:\r
     data buffer for data, ent.uncompressed_size UINT8s allocated by the caller\r
   return:\r
     ==0 success\r
     <0 error\r
*/\r
int readuncompresszip(ZIP* zip, struct zipent* ent, char* data);\r
\r
int seekcompresszip(ZIP* zip, struct zipent* ent);\r
\r
/* public functions */\r
int /* error */ load_zipped_file (const char *zipfile, const char *filename,\r
	unsigned char **buf, unsigned int *length);\r
int /* error */ checksum_zipped_file (const char *zipfile, const char *filename, unsigned int *length, unsigned int *sum);\r
\r
void unzip_cache_clear(void);\r
\r
/* public globals */\r
extern int	gUnzipQuiet;	/* flag controls error messages */\r
\r
#ifdef __cplusplus\r
}\r
#endif\r
\r
#endif\r