Category : C++ Source Code
Archive   : VCCRT2.ZIP
Filename : MSDOS.H

/***
*msdos.h - MS-DOS definitions for C runtime
*
* Copyright (c) 1987-1992, Microsoft Corporation. All rights reserved.
*
*Purpose:
* The file contains the MS-DOS definitions (function request numbers,
* flags, etc.) used by the C runtime.
* [Internal]
*
****/

/* __osfile flag values for DOS file handles */

#define FOPEN 0x01 /* file handle open */
#define FEOFLAG 0x02 /* end of file has been encountered */
#define FCRLF 0x04 /* CR-LF across read buffer (in text mode) */
#define FPIPE 0x08 /* file handle refers to a pipe */
#define FRDONLY 0x10 /* file handle associated with read only file */
#define FAPPEND 0x20 /* file handle opened O_APPEND */
#define FDEV 0x40 /* file handle refers to device */
#define FTEXT 0x80 /* file handle is in text mode */

#define DOS_kill 0x00 /* terminate */
#define DOS_echoread 0x01 /* read keyboard and echo */
#define DOS_display 0x02 /* display character */
#define DOS_auxinput 0x03 /* auxiliary input */
#define DOS_auxoutput 0x04 /* auxiliary output */
#define DOS_print 0x05 /* print character */
#define DOS_conio 0x06 /* direct console i/o */
#define DOS_coninput 0x07 /* direct console input */
#define DOS_readkbd 0x08 /* read keyboard */
#define DOS_message 0x09 /* display string */
#define DOS_bufkbdin 0x0a /* buffered keyboard input */
#define DOS_kbdstatus 0x0b /* check keyboard status */
#define DOS_flshread 0x0c /* flush buffer and read keyboard */
#define DOS_diskreset 0x0d /* disk reset */
#define DOS_selectdisk 0x0e /* select default disk */
#define DOS_fcbopen 0x0f /* open file with fcb */
#define DOS_fcbclose 0x10 /* close file with fcb */
#define DOS_fcbfirst 0x11 /* search for first entry with fcb */
#define DOS_fcbnext 0x12 /* search for next entry with fcb */
#define DOS_fcbdelete 0x13 /* delete file with fcb */
#define DOS_fcbsread 0x14 /* sequential read with fcb */
#define DOS_fcbswrite 0x15 /* sequential write with fcb */
#define DOS_fcbcreate 0x16 /* create file with fcb */
#define DOS_fcbrename 0x17 /* rename file with fcb */
#define DOS_currentd 0x19 /* current default disk */
#define DOS_setDMA 0x1a /* set DMA */
#define DOS_fcbrread 0x21 /* random read with fcb */
#define DOS_fcbrwrite 0x22 /* random write with fcb */
#define DOS_fcbsize 0x23 /* file size with fcb */
#define DOS_fcbsetrec 0x24 /* set relative record with fcb */
#define DOS_setvector 0x25 /* set interrupt vector */
#define DOS_fcbbread 0x27 /* random block read with fcb */
#define DOS_fcbbwrite 0x28 /* random block write with fcb */
#define DOS_fcbparse 0x29 /* parse file name with fcb */
#define DOS_getdate 0x2a /* get date */
#define DOS_setdate 0x2b /* set date */
#define DOS_gettime 0x2c /* get time */
#define DOS_settime 0x2d /* set time */
#define DOS_verify 0x2e /* set/reset verify flag */
#define DOS_getDMA 0x2f /* get DMA */
#define DOS_version 0x30 /* get version number */
#define DOS_keep 0x31 /* keep process */
#define DOS_cntlc 0x33 /* Cntl-C check */
#define DOS_getvector 0x35 /* get interrupt vector */
#define DOS_getdskspc 0x36 /* get disk free space */
#define DOS_country 0x38 /* get country dependent info */
#define DOS_mkdir 0x39 /* make subdirectory */
#define DOS_rmdir 0x3a /* remove subdirectory */
#define DOS_chdir 0x3b /* change subdirectory */
#define DOS_create 0x3c /* create pathname */
#define DOS_open 0x3d /* open pathname */
#define DOS_close 0x3e /* close file handle */
#define DOS_read 0x3f /* read from file handle */
#define DOS_write 0x40 /* write from file handle */
#define DOS_delete 0x41 /* delete pathname */
#define DOS_lseek 0x42 /* move file pointer */
#define DOS_filemode 0x43 /* get/set attributes of pathname */
#define DOS_ioctl 0x44 /* ioctl for devices */
#define DOS_dup 0x45 /* duplicate file handle */
#define DOS_forcedup 0x46 /* force duplicate file handle */
#define DOS_curdir 0x47 /* get current directory */
#define DOS_allocmem 0x48 /* allocate memory block */
#define DOS_freemem 0x49 /* free memory block */
#define DOS_setmem 0x4a /* set size of memory block */
#define DOS_exec 0x4b /* load and execute program */
#define DOS_terminate 0x4c /* terminate process with errorcode */
#define DOS_wait 0x4d /* get child process return code */
#define DOS_findfirst 0x4e /* find first file match */
#define DOS_findnext 0x4f /* find next file match */
#define DOS_getverify 0x54 /* return current verify flag */
#define DOS_rename 0x56 /* rename pathname */
#define DOS_filedate 0x57 /* get/set file handle date/time */
#define DOS_locking 0x5C /* file record locking/unlocking */
#define DOS_sleep 0x89 /* delay process execution */

/* DOS errno values for setting __doserrno in C routines */

#define E_ifunc 1 /* invalid function code */
#define E_nofile 2 /* file not found */
#define E_nopath 3 /* path not found */
#define E_toomany 4 /* too many open files */
#define E_access 5 /* access denied */
#define E_ihandle 6 /* invalid handle */
#define E_arena 7 /* arena trashed */
#define E_nomem 8 /* not enough memory */
#define E_iblock 9 /* invalid block */
#define E_badenv 10 /* bad environment */
#define E_badfmt 11 /* bad format */
#define E_iaccess 12 /* invalid access code */
#define E_idata 13 /* invalid data */
#define E_unknown 14 /* ??? unknown error ??? */
#define E_idrive 15 /* invalid drive */
#define E_curdir 16 /* current directory */
#define E_difdev 17 /* not same device */
#define E_nomore 18 /* no more files */
#define E_maxerr2 19 /* unknown error - Version 2.0 */
#define E_sharerr 32 /* sharing violation */
#define E_lockerr 33 /* locking violation */
#define E_maxerr3 34 /* unknown error - Version 3.0 */
#define E_exist 80 /* file already exists */

/* DOS file attributes */

#define A_RO 0x1 /* read only */
#define A_H 0x2 /* hidden */
#define A_S 0x4 /* system */
#define A_V 0x8 /* volume id */
#define A_D 0x10 /* directory */
#define A_A 0x20 /* archive */

#define A_MOD (A_RO+A_H+A_S+A_A) /* changeable attributes */