/*
 *	unixdisk.h
 *
 *	definitions & function prototype declarations for "unixdisk.c"
 */

#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include <time.h>

#ifndef	__SYS_TYPES_STAT_H_
#define	__SYS_TYPES_STAT_H_
#include <sys/types.h>
#include <sys/stat.h>
#endif

#include "termio.h"
#include "unixemu.h"

#ifndef	USEUTIME
#include <sys/time.h>
#endif

#ifdef	DJGPP
#define	NOP	0x00
#define	RETF	0xc3
#else
#define	NOP	0x90
#define	RETF	0xcb
#endif

#define	DATETIMEFORMAT	1
#define	DS_IRDONLY	001
#define	DS_IHIDDEN	002
#define	DS_IFSYSTEM	004
#define	DS_IFLABEL	010
#define	DS_IFDIR	020
#define	DS_IARCHIVE	040
#define	SEARCHATTRS	(DS_IRDONLY | DS_IHIDDEN | DS_IFSYSTEM \
			| DS_IFDIR | DS_IARCHIVE)
#define	PSEUDOINTNO	0x80
#define	MAXINTNO	0xff

#define	BOOTSECTSIZE	512
#define	MAXSECTSIZE	4096
#define	BIOSRETRY	4
#define	VOL_FAT32	"FAT32"

#ifdef	PC98
#define	DISKBIOS	0x1b
#define	BIOS_READ	0x06
#define	BIOS_WRITE	0x05
#define	BIOS_VERIFY	0x01
#define	BIOS_PARAM	0x84
#define	BIOS_RESET	0x03
#define	BIOS_HDD	0x80
#define	BIOS_SCSI	0xa0
#define	BIOS_DMAERR	0x20
#define	MAX_HDD		4
#define	MAX_SCSI	8

#define	PT_FAT12	0x81	/* 0x80 | 0x01 */
#define	PT_FAT16	0x91	/* 0x80 | 0x11 */
#define	PT_FREEBSD	0x94	/* 0x80 | 0x14 */
#define	PT_FAT16X	0xa1	/* 0x80 | 0x21 */
#define	PT_NTFS		0xb1	/* 0x80 | 0x31 */
#define	PT_386BSD	0xc4	/* 0x80 | 0x44 */
#define	PT_FAT32	0xe1	/* 0x80 | 0x61 */
#define	PT_LINUX	0xe2	/* 0x80 | 0x62 */

#define	PART_TABLE	0x0000
#define	PART_NUM	16
#else	/* !PC98 */
#define	DISKBIOS	0x13
#define	BIOS_READ	0x02
#define	BIOS_WRITE	0x03
#define	BIOS_VERIFY	0x04
#define	BIOS_PARAM	0x08
#define	BIOS_RESET	0x00
#define	BIOS_TYPE	0x15
#define	BIOS_XCHECK	0x41
#define	BIOS_XREAD	0x42
#define	BIOS_XWRITE	0x43
#define	BIOS_XVERIFY	0x44
#define	BIOS_XPARAM	0x48
#define	BIOS_HDD	0x80
#define	BIOS_DMAERR	0x09

#define	DT_NODRIVE	0x00
#define	DT_FLOPPY	0x01
#define	DT_FLOPPY_CL	0x02
#define	DT_HARDDISK	0x03

#define	PT_FAT12	0x01
#define	PT_FAT16	0x04
#define	PT_EXTEND	0x05
#define	PT_FAT16X	0x06
#define	PT_NTFS		0x07
#define	PT_FAT32	0x0b
#define	PT_FAT32LBA	0x0c
#define	PT_FAT16XLBA	0x0e
#define	PT_EXTENDLBA	0x0f
#define	PT_LINUX	0x83
#define	PT_386BSD	0xa5
#define	PT_OPENBSD	0xa6
#define	PT_NETBSD	0xa9

#define	PART_TABLE	0x01be
#define	PART_NUM	4
#endif	/* !PC98 */

typedef struct _partition_t {
	u_char boot __attribute__ ((packed));
#ifdef	PC98
	u_char filesys __attribute__ ((packed));
	u_char reserved[2] __attribute__ ((packed));
	u_char ipl_sect __attribute__ ((packed));
	u_char ipl_head __attribute__ ((packed));
	u_char ipl_cyl[2] __attribute__ ((packed));
	u_char s_sect __attribute__ ((packed));
	u_char s_head __attribute__ ((packed));
	u_char s_cyl[2] __attribute__ ((packed));
	u_char e_sect __attribute__ ((packed));
	u_char e_head __attribute__ ((packed));
	u_char e_cyl[2] __attribute__ ((packed));
	u_char name[16] __attribute__ ((packed));
#else
	u_char s_head __attribute__ ((packed));
	u_char s_sect __attribute__ ((packed));
	u_char s_cyl __attribute__ ((packed));
	u_char filesys __attribute__ ((packed));
	u_char e_head __attribute__ ((packed));
	u_char e_sect __attribute__ ((packed));
	u_char e_cyl __attribute__ ((packed));
	u_char f_sect[4] __attribute__ ((packed));
	u_char t_sect[4] __attribute__ ((packed));
#endif
} partition_t;
#define	PART_SIZE	((int)sizeof(partition_t))

typedef struct _xparam_t {
	u_char size[2] __attribute__ ((packed));
	u_char flags[2] __attribute__ ((packed));
	u_char cyl[4] __attribute__ ((packed));
	u_char head[4] __attribute__ ((packed));
	u_char sect[4] __attribute__ ((packed));
	u_char total[8] __attribute__ ((packed));
	u_char sectsize[2] __attribute__ ((packed));
	u_char eddparam[4] __attribute__ ((packed));
	u_char signature[2] __attribute__ ((packed));
	u_char infolen __attribute__ ((packed));
	u_char reserved[3] __attribute__ ((packed));
	u_char busname[4] __attribute__ ((packed));
	u_char interfacename[8] __attribute__ ((packed));
	u_char interfacepath[8] __attribute__ ((packed));
	u_char devicepath[8] __attribute__ ((packed));
	u_char reserved2 __attribute__ ((packed));
	u_char checksum __attribute__ ((packed));
} xparam_t;
#define	XPARAM_SIZE	((int)sizeof(xparam_t))

typedef struct _xpacket_t {
	u_char size __attribute__ ((packed));
	u_char reserved __attribute__ ((packed));
	u_char nsect[2] __attribute__ ((packed));
	u_char bufptr[4] __attribute__ ((packed));
	u_char sect[8] __attribute__ ((packed));
} xpacket_t;
#define	XPACKET_SIZE	((int)sizeof(xpacket_t))

typedef struct _drvinfo {
	u_long head;
	u_long sect;
	u_long cyl;
	u_long secthead;
	u_char s_head;
	u_char s_sect;
	u_short s_cyl;
#ifndef	PC98
	u_long f_sect;
#endif
	u_short sectsize;
	u_char drv;
	u_char flags;
	u_char filesys;
} drvinfo;

#define	DI_TYPE		0003
#define	DI_NOPLOVED	0000
#define	DI_FIXED	0001
#define	DI_REMOVABLE	0002
#define	DI_MISC		0003
#define	DI_PSEUDO	0004
#define	DI_CHECKED	0010
#define	DI_LBA		0020
#define	DI_INVALIDCHS	0040

struct dosfind_t {
	u_char keyattr __attribute__ ((packed));
	u_char drive __attribute__ ((packed));
	char body[8], ext[3] __attribute__ ((packed));
	char reserve[8] __attribute__ ((packed));
	u_char attr __attribute__ ((packed));
	u_short wrtime, wrdate __attribute__ ((packed));
	u_long size_l __attribute__ ((packed));
	char name[13] __attribute__ ((packed));
};

struct lfnfind_t {
	u_long attr __attribute__ ((packed));
	u_short crtime, crdate, crtime_h1, crtime_h2 __attribute__ ((packed));
	u_short actime, acdate, actime_h1, actime_h2 __attribute__ ((packed));
	u_short wrtime, wrdate, wrtime_h1, wrtime_h2 __attribute__ ((packed));
	u_long size_h, size_l __attribute__ ((packed));
	u_long reserve1, reserve2 __attribute__ ((packed));
	char name[MAXPATHLEN] __attribute__ ((packed));
	char alias[14] __attribute__ ((packed));
};

struct iopacket_t {
	u_long sect __attribute__ ((packed));
	u_short size __attribute__ ((packed));
	u_short buf_off __attribute__ ((packed));
	u_short buf_seg __attribute__ ((packed));
};

struct fat32statfs_t {
	u_short f_type __attribute__ ((packed));
	u_short f_version __attribute__ ((packed));
	u_long f_clustsize __attribute__ ((packed));
	u_long f_sectsize __attribute__ ((packed));
	u_long f_bavail __attribute__ ((packed));
	u_long f_blocks __attribute__ ((packed));
	u_long f_real_bavail_sect __attribute__ ((packed));
	u_long f_real_blocks_sect __attribute__ ((packed));
	u_long f_real_bavail __attribute__ ((packed));
	u_long f_real_blocks __attribute__ ((packed));
	u_char reserved[8] __attribute__ ((packed));
};

typedef struct _statfs_t {
	long f_bsize;
	long f_blocks;
	long f_bfree;
	long f_bavail;
	long f_files;
} statfs_t;

extern int intcall __P_((int, __dpmi_regs *, struct SREGS *));
extern int getcurdrv __P_((VOID_A));
extern int setcurdrv __P_((int, int));
#ifndef	_NOUSELFN
extern int getdosver __P_((VOID_A));
extern int supportLFN __P_((CONST char *));
#endif
extern char *unixgetcurdir __P_((char *, int));
#ifndef	_NOUSELFN
extern char *shortname __P_((CONST char *, char *));
#endif
extern char *unixrealpath __P_((CONST char *, char *));
#ifndef	BSPATHDELIM
extern char *adjustpname __P_((char *));
#endif
#if	defined (DJGPP) || !defined (BSPATHDELIM)
extern char *adjustfname __P_((char *));
#endif
#ifndef	_NOUSELFN
extern char *preparefile __P_((CONST char *, char *));
# ifndef	_NODOSDRIVE
extern int checkdrive __P_((int));
extern int rawdiskio __P_((int, u_long, u_char *, int, int, int));
# endif
#endif	/* !_NOUSELFN */
extern DIR *unixopendir __P_((CONST char *));
extern int unixclosedir __P_((DIR *));
extern struct dirent *unixreaddir __P_((DIR *));
extern int unixrewinddir __P_((DIR *));
#ifdef	_NOUSELFN
#define	unixunlink(p)		((unlink(p)) ? -1 : 0)
#define	unixrename(f, t)	((rename(f, t)) ? -1 : 0)
# ifdef	DJGPP
# define	unixmkdir(p, m)	((mkdir(p, m)) ? -1 : 0)
# else
extern int unixmkdir __P_((CONST char *, int));
# endif
#define	unixrmdir(p)		((rmdir(p)) ? -1 : 0)
#define	unixchdir(p)		((chdir(p)) ? -1 : 0)
#else
extern int unixunlink __P_((CONST char *));
extern int unixrename __P_((CONST char *, CONST char *));
extern int unixmkdir __P_((CONST char *, int));
extern int unixrmdir __P_((CONST char *));
extern int unixchdir __P_((CONST char *));
#endif
extern char *unixgetcwd __P_((char *, int));
extern int unixstatfs __P_((CONST char *, statfs_t *));
extern int unixstat __P_((CONST char *, struct stat *));
extern int unixchmod __P_((CONST char *, int));
#ifdef	_NOUSELFN
#define	unixutime(p, t)		((utime(p, t)) ? -1 : 0)
#define	unixutimes(p, t)	((utimes(p, t)) ? -1 : 0)
#else	/* !_NOUSELFN */
# ifdef	USEUTIME
extern int unixutime __P_((CONST char *, CONST struct utimbuf *));
# else
extern int unixutimes __P_((CONST char *, CONST struct timeval *));
# endif
extern int unixopen __P_((CONST char *, int, int));
extern FILE *unixfopen __P_((CONST char *, CONST char *));
#endif	/* !_NOUSELFN */