Source code of Windows XP (NT5)
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/***
*msdos.h - MS-DOS definitions for C runtime** Copyright (c) 1987-2001, Microsoft Corporation. All rights reserved.**Purpose:* The file contains the MS-DOS definitions (function request numbers,* flags, etc.) used by the C runtime.** [Internal]**Revision History:* 08-01-89 GJF Fixed copyright* 10-30-89 GJF Fixed copyright (again)* 03-01-90 GJF Added #ifndef _INC_MSDOS stuff* 05-09-90 JCR Added _STACKSLOP (from msdos.inc)* 11-30-90 GJF Added Win32 support. Also removed constants that* are not used in Cruiser or Win32 runtimes.* 12-04-90 SRW Removed Win32 dependencies from this file.* Put them in internal.h* 07-01-92 GJF FRDONLY is not set or used for Win32.* 02-23-93 SKS Update copyright to 1993* 12-28-94 JCF Merged with mac header.* 02-14-95 CFW Clean up Mac merge.* 03-29-95 CFW Add error message to internal headers.* 12-14-95 JWM Add "#pragma once".* 05-16-96 GJF Added FNOINHERIT.* 02-24-97 GJF Replaced defined(_M_MPPC) || defined(_M_M68K) with* defined(_MAC).* 05-17-99 PML Remove all Macintosh support.*****/
#if _MSC_VER > 1000 /*IFSTRIP=IGN*/
#pragma once
#endif
#ifndef _INC_MSDOS
#define _INC_MSDOS
#ifndef _CRTBLD
/*
* This is an internal C runtime header file. It is used when building * the C runtimes only. It is not to be used as a public header file. */#error ERROR: Use of C runtime library internal header file.
#endif /* _CRTBLD */
/* Stack slop for o.s. system call overhead */
#define _STACKSLOP 1024
/* __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 FNOINHERIT 0x10 /* file handle opened _O_NOINHERIT */
#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 */
/* 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 */
/* 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 */
#endif /* _INC_MSDOS */
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