/* * Copyright (c) 1992, 1993, 1996 * Berkeley Software Design, Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Berkeley Software * Design, Inc. * * THIS SOFTWARE IS PROVIDED BY Berkeley Software Design, Inc. ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL Berkeley Software Design, Inc. BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * BSDI dos.h,v 2.2 1996/04/08 19:32:28 bostic Exp */ /* * DOS Error codes */ /* MS-DOS version 2 error codes */ #define FUNC_NUM_IVALID 0x01 #define FILE_NOT_FOUND 0x02 #define PATH_NOT_FOUND 0x03 #define TOO_MANY_OPEN_FILES 0x04 #define ACCESS_DENIED 0x05 #define HANDLE_INVALID 0x06 #define MEM_CB_DEST 0x07 #define INSUF_MEM 0x08 #define MEM_BLK_ADDR_IVALID 0x09 #define ENV_INVALID 0x0a #define FORMAT_INVALID 0x0b #define ACCESS_CODE_INVALID 0x0c #define DATA_INVALID 0x0d #define UNKNOWN_UNIT 0x0e #define DISK_DRIVE_INVALID 0x0f #define ATT_REM_CUR_DIR 0x10 #define NOT_SAME_DEV 0x11 #define NO_MORE_FILES 0x12 /* mappings to critical-error codes */ #define WRITE_PROT_DISK 0x13 #define UNKNOWN_UNIT_CERR 0x14 #define DRIVE_NOT_READY 0x15 #define UNKNOWN_COMMAND 0x16 #define DATA_ERROR_CRC 0x17 #define BAD_REQ_STRUCT_LEN 0x18 #define SEEK_ERROR 0x19 #define UNKNOWN_MEDIA_TYPE 0x1a #define SECTOR_NOT_FOUND 0x1b #define PRINTER_OUT_OF_PAPER 0x1c #define WRITE_FAULT 0x1d #define READ_FAULT 0x1e #define GENERAL_FAILURE 0x1f /* MS-DOS version 3 and later extended error codes */ #define SHARING_VIOLATION 0x20 #define FILE_LOCK_VIOLATION 0x21 #define DISK_CHANGE_INVALID 0x22 #define FCB_UNAVAILABLE 0x23 #define SHARING_BUF_EXCEEDED 0x24 #define NETWORK_NAME_NOT_FOUND 0x35 #define FILE_ALREADY_EXISTS 0x50 #define DUPLICATE_REDIR 0x55 /* * dos attribute byte flags */ #define REGULAR_FILE 0x00 #define READ_ONLY_FILE 0x01 #define HIDDEN_FILE 0x02 #define SYSTEM_FILE 0x04 #define VOLUME_LABEL 0x08 #define DIRECTORY 0x10 #define ARCHIVE_NEEDED 0x20 /* * Internal structure used for get_space() */ typedef struct { long bytes_sector; long sectors_cluster; long total_clusters; long avail_clusters; } fsstat_t; /* * Several DOS structures used by the file redirector */ typedef struct { DIR *dp; u_char *searchend; u_char searchdir[1024]; } search_t; /* * This is really the format of the DTA. The file redirector will only * use the first 21 bytes. */ typedef struct { u_char drive; u_char pattern[11]; u_char flag; u_char reserved1[4]; search_t *searchptr; u_char attr; u_short time; u_short date; u_long size; u_char name[13]; } __attribute__((__packed__)) find_block_t; /* * DOS directory entry structure */ typedef struct { u_char name[8]; u_char ext[3]; u_char attr; u_char reserved[10]; u_short time; u_short date; u_short start; u_long size; } dosdir_t; /* * The Current Drive Structure */ typedef struct { u_char path[0x43]; u_short flag; u_short dpb_off; u_short dpb_seg; u_short redirector_off; u_short redirector_seg; u_char paramter_int21[2]; u_short offset; u_char dummy; u_char ifs_driver[4]; u_char dummy2[2]; } __attribute__((__packed__)) CDS; #define CDS_remote 0x8000 #define CDS_ready 0x4000 #define CDS_joined 0x2000 #define CDS_substed 0x1000 #define CDS_notnet 0x0080 /* * The List of Lists (used to get the CDS and a few other numbers) */ typedef struct { u_char dummy1[0x16]; u_short cds_offset; u_short cds_seg; u_char dummy2[6]; u_char numberbdev; u_char lastdrive; } LOL; /* * The System File Table */ typedef struct { /*00*/ u_short nfiles; /* Number file handles referring to this file */ /*02*/ u_short open_mode; /* Open mode (bit 15 -> by FCB) */ /*04*/ u_char attribute; /*05*/ u_short info; /* 15 -> remote, 14 -> dont set date */ /*07*/ u_char ddr_dpb[4]; /* Device Driver Header/Drive Paramter Block */ /*0b*/ u_short fd; /*0d*/ u_short time; /*0f*/ u_short date; /*11*/ u_long size; /*15*/ u_long offset; /*19*/ u_short rel_cluster; /*1b*/ u_short abs_cluster; /*1d*/ u_char dir_sector[2]; /*1f*/ u_char dir_entry; /*20*/ u_char name[8]; /*28*/ u_char ext[3]; /*2b*/ u_char sharesft[4]; /*2f*/ u_char sharenet[2]; /*31*/ u_short psp; /*33*/ u_char share_off[2]; /*35*/ u_char local_end[2]; /*37*/ u_char ifd_driver[4]; } __attribute__((__packed__)) SFT; /* * Format of PCDOS 4.01 swappable data area * (Sorry, but you need a wide screen to make this look nice) */ typedef struct { u_char err_crit; /* 00h BYTE critical error flag */ u_char InDOS; /* 01h BYTE InDOS flag (count of active INT 21 calls) */ u_char err_drive; /* 02h BYTE ??? drive number or FFh */ u_char err_locus; /* 03h BYTE locus of last error */ u_short err_code; /* 04h WORD extended error code of last error */ u_char err_suggest; /* 06h BYTE suggested action for last error */ u_char err_class; /* 07h BYTE class of last error */ u_short err_di; u_short err_es; /* 08h DWORD ES:DI pointer for last error */ u_short dta_off; u_short dta_seg; /* 0Ch DWORD current DTA */ u_short psp; /* 10h WORD current PSP */ u_short int_23_sp; /* 12h WORD stores SP across an INT 23 */ u_short wait_status; /* 14h WORD return code from last process termination (zerod after reading with AH=4Dh) */ u_char current_drive; /* 16h BYTE current drive */ u_char break_flag; /* 17h BYTE extended break flag */ u_char unknown1[2]; /* 18h 2 BYTEs ??? */ u_short int_21_ax; /* 1Ah WORD value of AX on call to INT 21 */ u_short net_psp; /* 1Ch WORD PSP segment for sharing/network */ u_short net_number; /* 1Eh WORD network machine number for sharing/network (0000h = us) */ u_short first_mem; /* 20h WORD first usable memory block found when allocating memory */ u_short best_mem; /* 22h WORD best usable memory block found when allocating memory */ u_short last_mem; /* 24h WORD last usable memory block found when allocating memory */ u_char unknown[10]; /* 26h 2 BYTEs ??? (don't seem to be referenced) */ u_char monthday; /* 30h BYTE day of month */ u_char month; /* 31h BYTE month */ u_short year; /* 32h WORD year - 1980 */ u_short days; /* 34h WORD number of days since 1-1-1980 */ u_char weekday; /* 36h BYTE day of week (0 = Sunday) */ u_char unknown2[3]; /* 37h BYTE ??? */ u_char ddr_head[30]; /* 38h 30 BYTEs device driver request header */ u_short ddre_ip; u_short ddre_cs; /* 58h DWORD pointer to device driver entry point (used in calling driver) */ u_char ddr_head2[22]; /* 5Ch 22 BYTEs device driver request header */ u_char ddr_head3[30]; /* 72h 30 BYTEs device driver request header */ u_char unknown3[6]; /* 90h 6 BYTEs ??? */ u_char clock_xfer[6]; /* 96h 6 BYTEs CLOCK$ transfer record (see AH=52h) */ u_char unknown4[2]; /* 9Ch 2 BYTEs ??? */ u_char filename1[128]; /* 9Eh 128 BYTEs buffer for filename */ u_char filename2[128]; /* 11Eh 128 BYTEs buffer for filename */ u_char findfirst[21]; /* 19Eh 21 BYTEs findfirst/findnext search data block (see AH=4Eh) */ u_char foundentry[32]; /* 1B3h 32 BYTEs directory entry for found file */ u_char cds[88]; /* 1D3h 88 BYTEs copy of current directory structure for drive being accessed */ u_char fcbname[11]; /* 22Bh 11 BYTEs ??? FCB-format filename */ u_char unknown5; /* 236h BYTE ??? */ u_char wildcard[11]; /* 237h 11 BYTEs wildcard destination specification for rename (FCB format) */ u_char unknown6[11]; /* 242h 2 BYTEs ??? */ u_char attrmask; /* 24Dh BYTE attribute mask for directory search??? */ u_char open_mode; /* 24Eh BYTE open mode */ u_char unknown7[3]; /* 24fh BYTE ??? */ u_char virtual_dos; /* 252h BYTE flag indicating how DOS function was invoked (00h = direct INT 20/INT 21, FFh = server call AX=5D00h) */ u_char unknown8[9]; /* 253h BYTE ??? */ u_char term_type; /* 25Ch BYTE type of process termination (00h-03h) */ u_char unknown9[3]; /* 25Dh BYTE ??? */ u_short dpb_off; u_short dpb_seg; /* 260h DWORD pointer to Drive Parameter Block for critical error invocation */ u_short int21_sf_off; u_short int21_sf_seg; /* 264h DWORD pointer to stack frame containing user registers on INT 21 */ u_short store_sp; /* 268h WORD stores SP??? */ u_short dosdpb_off; u_short dosdpb_seg; /* 26Ah DWORD pointer to DOS Drive Parameter Block for ??? */ u_short disk_buf_seg; /* 26Eh WORD segment of disk buffer */ u_short unknown10[4]; /* 270h WORD ??? */ u_char media_id; /* 278h BYTE Media ID byte returned by AH=1Bh,1Ch */ u_char unknown11; /* 279h BYTE ??? (doesn't seem to be referenced) */ u_short unknown12[2]; /* 27Ah DWORD pointer to ??? */ u_short sft_off; u_short sft_seg; /* 27Eh DWORD pointer to current SFT */ u_short cds_off; u_short cds_seg; /* 282h DWORD pointer to current directory structure for drive being accessed */ u_short fcb_off; u_short fcb_seg; /* 286h DWORD pointer to caller's FCB */ u_short unknown13[2]; /* 28Ah WORD ??? */ u_short jft_off; u_short jft_seg; /* 28Eh DWORD pointer to a JFT entry in process handle table (see AH=26h) */ u_short filename1_off; /* 292h WORD offset in DOS CS of first filename argument */ u_short filename2_off; /* 294h WORD offset in DOS CS of second filename argument */ u_short unknown14[12]; /* 296h WORD ??? */ u_short file_offset_lo; u_short file_offset_hi; /* 2AEh DWORD offset in file??? */ u_short unknown15; /* 2B2h WORD ??? */ u_short partial_bytes; /* 2B4h WORD bytes in partial sector */ u_short number_sectors; /* 2B6h WORD number of sectors */ u_short unknown16[3]; /* 2B8h WORD ??? */ u_short nbytes_lo; u_short nbytes_hi; /* 2BEh DWORD number of bytes appended to file */ u_short qpdb_off; u_short qpdb_seg; /* 2C2h DWORD pointer to ??? disk buffer */ u_short asft_off; u_short asft_seg; /* 2C6h DWORD pointer to ??? SFT */ u_short int21_bx; /* 2CAh WORD used by INT 21 dispatcher to store caller's BX */ u_short int21_ds; /* 2CCh WORD used by INT 21 dispatcher to store caller's DS */ u_short temporary; /* 2CEh WORD temporary storage while saving/restoring caller's registers */ u_short prevcall_off; u_short prevcall_seg; /* 2D0h DWORD pointer to prev call frame (offset 264h) if INT 21 reentered also switched to for duration of INT 24 */ u_char unknown17[9]; /* 2D4h WORD ??? */ u_short ext_action; /* 2DDh WORD multipurpose open action */ u_short ext_attr; /* 2DFh WORD multipurpose attribute */ u_short ext_mode; /* 2E1h WORD multipurpose mode */ u_char unknown17a[9]; u_short lol_ds; /* 2ECh WORD stores DS during call to [List-of-Lists + 37h] */ u_char unknown18[5]; /* 2EEh WORD ??? */ u_char usernameptr[4]; /* 2F3h DWORD pointer to user-supplied filename */ u_char unknown19[4]; /* 2F7h DWORD pointer to ??? */ u_char lol_ss[2]; /* 2FBh WORD stores SS during call to [List-of-Lists + 37h] */ u_char lol_sp[2]; /* 2FDh WORD stores SP during call to [List-of-Lists + 37h] */ u_char lol_flag; /* 2FFh BYTE flag, nonzero if stack switched in calling [List-of-Lists+37h] */ u_char searchdata[21]; /* 300h 21 BYTEs FindFirst search data for source file(s) of a rename operation (see AH=4Eh) */ u_char renameentry[32];/* 315h 32 BYTEs directory entry for file being renamed */ u_char errstack[331]; /* 335h 331 BYTEs critical error stack */ u_char diskstack[384]; /* 480h 384 BYTEs disk stack (functions greater than 0Ch, INT 25, INT 26) */ u_char iostack[384]; /* 600h 384 BYTEs character I/O stack (functions 01h through 0Ch) */ u_char int_21_08_flag; /* 780h BYTE flag affecting AH=08h (see AH=64h) */ u_char unknown20[11]; /* 781h BYTE ??? looks like a drive number */ } __attribute__((__packed__)) SDA;