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290 lines
7.9 KiB
290 lines
7.9 KiB
/***
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*dos.h - definitions for MS-DOS interface routines
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*
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* Copyright (c) 1985-1995, Microsoft Corporation. All rights reserved.
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*
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*Purpose:
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* Defines the structs and unions used for the direct DOS interface
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* routines; includes macros to access the segment and offset
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* values of far pointers, so that they may be used by the routines; and
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* provides function prototypes for direct DOS interface functions.
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*
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* [Public]
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*
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*Revision History:
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* 06-11-87 JCR Added find_t
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* 06-15-87 JCR Added O_NOINHERIT
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* 06-18-87 JCR Added some DOS function prototypes
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* 06-19-87 JCR Moved O_NOINHERIT to fcntl.h
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* 06-25-87 JMB Added _HARDERR_* constants
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* 06-25-87 SKS Added diskfree_t, dosdate_t, dostime_t structures
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* 06-25-87 JCR Added _A_NORMAL, etc. constants
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* 07-17-87 JCR Added _chain_intr, also the "interrupt" type to
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* _dos_setvec and _dos_getvec.
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* 07-27-87 SKS Added several _dos_*() functions, _disable()/_enable()
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* 08-17-87 PHG Fixed bad prototype for _dos_getdiskfree()
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* 10-08-87 JCR Added _CDECL to prototypes with "interrupt" declaration
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* (needed for compiling with -Gc switch).
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* 09-27-88 JCR 386 version
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* 10-03-88 GJF Use M_I386, not I386
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* 05-03-89 JCR Added _INTERNAL_IFSTRIP for relinc usage
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* 07-25-89 GJF Major cleanup. Alignment of struct fields is now
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* protected by pack pragmas. Now specific to 386.
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* 10-30-89 GJF Fixed copyright
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* 11-02-89 JCR Changed "DLL" to "_DLL"
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* 02-28-90 GJF Added #ifndef _INC_DOS and #include <cruntime.h>
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* stuff. Also, removed some (now) useless preprocessor
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* directives.
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* 03-22-90 GJF Replaced _cdecl with _CALLTYPE1 in prototype and with
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* _VARTYPE1 in variable declaration.
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* 12-28-90 SRW Added _CRUISER_ conditional around pack pragmas
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* 01-23-91 GJF Removed segread() prototype.
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* 04-04-91 GJF Added version info variables (_WIN32_).
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* 08-20-91 JCR C++ and ANSI naming
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* 08-26-91 BWM Added _peek, poke, and _getvideoaddr (_DOSX32_).
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* 08-26-91 BWM Removed _harderr constants, replaced by _seterrormode.
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* 08-26-91 BWM Removed datetime prototypes, replaced by systime functions.
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* 09-05-91 JCR Added missing #endif (bug fix), removed obsolete stuff
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* 09-16-91 BWM Fixed reversed #ifdef on screen address constants.
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* 01-22-92 GJF Fixed up definitions of global variables for build of,
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* and users of, crtdll.dll.
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* 03-30-92 DJM POSIX support.
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* 06-02-92 SKS Fix typo in DLL declaration of _osmajor
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* Add declartion of _pgmptr
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* 08-07-92 GJF Function calling type and variable type macros.
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* 01-21-93 GJF Removed support for C6-386's _cdecl.
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* 04-06-93 SKS Replace _CRTAPI1/2 with __cdecl, _CRTVAR1 with nothing
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* Remove support for DOSX32, OS/2, etc.
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* Remove obsolete vars and vars moved to STDLIB.H
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* Remove duplicate references to _osver, etc.
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* Remove obsolete functions peek, poke, etc.
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* 04-07-93 SKS Add _CRTIMP keyword for CRT DLL model
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* 06-15-93 GJF Restored prototypes for _enable, _disable.
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* 09-01-93 GJF Merged Cuda and NT SDK versions.
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* 11-19-93 CFW Add _wpgmptr.
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* 11-03-94 GJF Ensure 8 byte alignment.
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* 12-15-94 XY merged with mac header
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* 02-11-95 CFW Add _CRTBLD to avoid users getting wrong headers.
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* 02-14-95 CFW Clean up Mac merge.
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* 12-14-95 JWM Add "#pragma once".
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*
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****/
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#if _MSC_VER > 1000 /*IFSTRIP=IGN*/
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#pragma once
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#endif
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#ifndef _INC_DOS
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#define _INC_DOS
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#if !defined(_WIN32) && !defined(_MAC)
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#error ERROR: Only Mac or Win32 targets supported!
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#endif
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#ifndef _CRTBLD
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/* This version of the header files is NOT for user programs.
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* It is intended for use when building the C runtimes ONLY.
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* The version intended for public use will not have this message.
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*/
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#error ERROR: Use of C runtime library internal header file.
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#endif /* _CRTBLD */
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#ifdef _MSC_VER
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/*
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* Currently, all MS C compilers for Win32 platforms default to 8 byte
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* alignment.
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*/
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#pragma pack(push,8)
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#endif /* _MSC_VER */
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef _INTERNAL_IFSTRIP_
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#include <cruntime.h>
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#endif /* _INTERNAL_IFSTRIP_ */
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/* Define _CRTAPI1 (for compatibility with the NT SDK) */
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#ifndef _CRTAPI1
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#if _MSC_VER >= 800 && _M_IX86 >= 300 /*IFSTRIP=IGN*/
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#define _CRTAPI1 __cdecl
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#else
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#define _CRTAPI1
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#endif
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#endif
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/* Define _CRTAPI2 (for compatibility with the NT SDK) */
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#ifndef _CRTAPI2
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#if _MSC_VER >= 800 && _M_IX86 >= 300 /*IFSTRIP=IGN*/
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#define _CRTAPI2 __cdecl
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#else
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#define _CRTAPI2
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#endif
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#endif
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/* Define _CRTIMP */
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#ifndef _CRTIMP
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#ifdef _NTSDK
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/* definition compatible with NT SDK */
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#define _CRTIMP
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#else /* ndef _NTSDK */
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/* current definition */
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#ifdef CRTDLL
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#define _CRTIMP __declspec(dllexport)
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#else /* ndef CRTDLL */
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#ifdef _DLL
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#define _CRTIMP __declspec(dllimport)
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#else /* ndef _DLL */
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#define _CRTIMP
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#endif /* _DLL */
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#endif /* CRTDLL */
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#endif /* _NTSDK */
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#endif /* _CRTIMP */
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/* Define __cdecl for non-Microsoft compilers */
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#if ( !defined(_MSC_VER) && !defined(__cdecl) )
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#define __cdecl
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#endif
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#ifndef _MAC
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#ifndef _WCHAR_T_DEFINED
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typedef unsigned short wchar_t;
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#define _WCHAR_T_DEFINED
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#endif
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#endif /* ndef _MAC */
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#ifndef _MAC
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#ifndef _DISKFREE_T_DEFINED
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/* _getdiskfree structure (duplicated in DIRECT.H) */
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struct _diskfree_t {
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unsigned total_clusters;
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unsigned avail_clusters;
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unsigned sectors_per_cluster;
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unsigned bytes_per_sector;
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};
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#define _DISKFREE_T_DEFINED
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#endif
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#endif /* ndef _MAC */
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/* File attribute constants */
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#define _A_NORMAL 0x00 /* Normal file - No read/write restrictions */
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#define _A_RDONLY 0x01 /* Read only file */
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#define _A_HIDDEN 0x02 /* Hidden file */
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#define _A_SYSTEM 0x04 /* System file */
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#define _A_SUBDIR 0x10 /* Subdirectory */
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#define _A_ARCH 0x20 /* Archive file */
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#ifdef _NTSDK
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/* External variable declarations */
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/*
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* WARNING! The _osversion, _osmajor, _osminor, _baseversion, _basemajor and
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* _baseminor variables were never meaningfully defined in the C runtime
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* libraries for Win32 platforms. Any code which references these variables
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* should be revised (see the declarations for version information variables
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* in stdlib.h).
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*/
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#ifdef _DLL
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/* --------- The following block is OBSOLETE --------- */
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#define _osversion (*_osversion_dll)
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#define _osmajor (*_osmajor_dll)
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#define _osminor (*_osminor_dll)
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#define _baseversion (*_baseversion_dll)
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#define _basemajor (*_basemajor_dll)
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#define _baseminor (*_baseminor_dll)
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extern unsigned int * _osversion_dll;
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extern unsigned int * _osmajor_dll;
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extern unsigned int * _osminor_dll;
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extern unsigned int * _baseversion_dll;
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extern unsigned int * _basemajor_dll;
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extern unsigned int * _baseminor_dll;
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/* --------- The preceding block is OBSOLETE --------- */
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#define _pgmptr (*_pgmptr_dll)
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extern char ** _pgmptr_dll;
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#ifndef _MAC
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#define _wpgmptr (*_wpgmptr_dll)
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extern wchar_t ** _wpgmptr_dll;
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#endif /* ndef _MAC */
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#else /* ndef _DLL */
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/* --------- The following block is OBSOLETE --------- */
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#ifdef CRTDLL
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#define _osversion _osversion_dll
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#define _osmajor _osmajor_dll
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#define _osminor _osminor_dll
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#define _baseversion _baseversion_dll
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#define _basemajor _basemajor_dll
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#define _baseminor _baseminor_dll
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#endif /* CRTDLL */
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extern unsigned int _osversion;
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extern unsigned int _osmajor;
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extern unsigned int _osminor;
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extern unsigned int _baseversion;
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extern unsigned int _basemajor;
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extern unsigned int _baseminor;
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/* --------- The preceding block is OBSOLETE --------- */
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#ifdef CRTDLL
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#define _pgmptr _pgmptr_dll
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#ifndef _MAC
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#define _wpgmptr _wpgmptr_dll
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#endif /* ndef _MAC */
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#endif /* CRTDLL */
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extern char * _pgmptr;
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#ifndef _MAC
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extern wchar_t * _wpgmptr;
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#endif /* ndef _MAC */
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#endif /* _DLL */
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#endif /* _NTSDK */
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#ifndef _MAC
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/* Function prototypes */
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_CRTIMP unsigned __cdecl _getdiskfree(unsigned, struct _diskfree_t *);
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#endif /* ndef _MAC */
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#ifdef _M_IX86
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void __cdecl _disable(void);
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void __cdecl _enable(void);
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#endif /* _M_IX86 */
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#ifndef _MAC
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#if !__STDC__
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/* Non-ANSI name for compatibility */
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#define diskfree_t _diskfree_t
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#endif /* __STDC__ */
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#endif /* ndef _MAC */
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#ifdef __cplusplus
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}
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#endif
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#ifdef _MSC_VER
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#pragma pack(pop)
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#endif /* _MSC_VER */
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#endif /* _INC_DOS */
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