FreeDOS/hdr/fcb.h

121 lines
5.9 KiB
C

/****************************************************************/
/* */
/* fcb.h */
/* */
/* FAT FCB and extended FCB data structures & declarations */
/* */
/* November 23, 1991 */
/* */
/* Copyright (c) 1995 */
/* Pasquale J. Villani */
/* All Rights Reserved */
/* */
/* This file is part of DOS-C. */
/* */
/* DOS-C is free software; you can redistribute it and/or */
/* modify it under the terms of the GNU General Public License */
/* as published by the Free Software Foundation; either version */
/* 2, or (at your option) any later version. */
/* */
/* DOS-C is distributed in the hope that it will be useful, but */
/* WITHOUT ANY WARRANTY; without even the implied warranty of */
/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See */
/* the GNU General Public License for more details. */
/* */
/* You should have received a copy of the GNU General Public */
/* License along with DOS-C; see the file COPYING. If not, */
/* write to the Free Software Foundation, 675 Mass Ave, */
/* Cambridge, MA 02139, USA. */
/****************************************************************/
#ifdef MAIN
#ifdef VERSION_STRINGS
static BYTE *fcb_hRcsId =
"$Id: fcb.h 485 2002-12-09 00:17:15Z bartoldeman $";
#endif
#endif
/* fcb convience defines */
/* block device info */
#define FID_CHARDEV 0x80 /* 1 defines character device */
/* 0 defines block file */
#define FID_NOWRITE 0x40 /* 0 file dirty (write occured) */
/* 1 file has no changes */
#define FID_MASK 0x3f /* file # */
/* char device info */
#define FID_EOF 0x40 /* 1 = no eof detected */
/* 0 = end of file on input */
#define FID_BINARY 0x20 /* 1 = binary (raw) mode device */
/* 0 = ascii (cooked) mode device */
#define FID_CLOCK 0x08 /* Clock device */
#define FID_NULL 0x04 /* Null device */
#define FID_CONOUT 0x02 /* Console output device */
#define FID_CONIN 0x01 /* Console input device */
#ifndef FNAME_SIZE
#define FNAME_SIZE 8 /* limit on file name */
#endif
#ifndef FEXT_SIZE
#define FEXT_SIZE 3 /* limit on extension */
#endif
#ifndef FDFLT_DRIVE
#define FDFLT_DRIVE 0 /* default drive */
#endif
#define PARSE_SEP_STOP 0x01
#define PARSE_DFLT_DRIVE 0x02
#define PARSE_BLNK_FNAME 0x04
#define PARSE_BLNK_FEXT 0x08
#define PARSE_RET_NOWILD 0
#define PARSE_RET_WILD 1
#define PARSE_RET_BADDRIVE 0xff
#define FCB_READ 0
#define FCB_WRITE 1
/* File Control Block (FCB) */
typedef struct {
UBYTE fcb_drive; /* Drive number 0=default, 1=A, etc */
BYTE fcb_fname[FNAME_SIZE]; /* File name */
BYTE fcb_fext[FEXT_SIZE]; /* File name Extension */
UWORD fcb_cublock; /* Current block number of */
/* 128 records/block, for seq. r/w */
UWORD fcb_recsiz; /* Logical record size in bytes, */
/* default = 128 */
ULONG fcb_fsize; /* File size in bytes */
date fcb_date; /* Date file created */
time fcb_time; /* Time of last write */
/* the following are reserved by system */
BYTE fcb_sftno; /* Device ID */
BYTE fcb_attrib_hi; /* share info, dev attrib word hi */
BYTE fcb_attrib_lo; /* dev attrib word lo, open mode */
UWORD fcb_strtclst; /* file starting cluster */
UWORD fcb_dirclst; /* cluster of the dir entry */
UBYTE fcb_diroff_unused; /* offset of the dir entry */
/* end reserved */
UBYTE fcb_curec; /* Current block number of */
ULONG fcb_rndm; /* Current relative record number */
} fcb;
/* FAT extended fcb */
typedef struct {
UBYTE xfcb_flag; /* 0xff indicates Extended FCB */
BYTE xfcb_resvrd[5]; /* Reserved */
UBYTE xfcb_attrib; /* Attribute */
fcb xfcb_fcb;
} xfcb;
typedef struct {
UBYTE renDriveID; /* drive no. */
BYTE renOldName[8]; /* Old Filename */
BYTE renOldExtent[3]; /* Old File Extension */
BYTE renReserved1[5];
BYTE renNewName[8]; /* New Filename */
BYTE renNewExtent[3]; /* New FileExtension */
BYTE renReserved2[9];
} rfcb;