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https://github.com/reactos/reactos.git
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142 lines
3.5 KiB
C
142 lines
3.5 KiB
C
/*
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* COPYRIGHT: GPL - See COPYING in the top level directory
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* PROJECT: ReactOS Virtual DOS Machine
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* FILE: subsystems/mvdm/ntvdm/dos/dos32krnl/dosfiles.h
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* PURPOSE: DOS32 Files Support
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* PROGRAMMERS: Aleksandar Andrejevic <theflash AT sdf DOT lonestar DOT org>
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*/
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#pragma once
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/* DEFINES ********************************************************************/
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#define FILE_INFO_STDIN (1 << 0)
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#define FILE_INFO_STDOUT (1 << 1)
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#define FILE_INFO_BINARY (1 << 5)
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#define FILE_INFO_DEVICE (1 << 7)
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#pragma pack(push, 1)
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#if 0 // Real DOS-5 SFT entry, for reference only
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typedef struct _DOS_FILE_DESCRIPTOR_DOS5
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{
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WORD RefCount; // 0x00
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WORD OpenMode; // 0x02
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BYTE Attributes; // 0x04
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WORD DeviceInfo; // 0x05
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DWORD DevicePointer; // 0x07
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WORD StartCluster; // 0x0b
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WORD Time; // 0x0d
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WORD Date; // 0x0f
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DWORD Size; // 0x11
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DWORD Position; // 0x15
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BYTE Reserved0[7]; // 0x19
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CHAR FileName[11]; // 0x20
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BYTE Reserved1[6]; // 0x2b
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WORD OwnerPsp; // 0x31
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BYTE Reserved2[8]; // 0x33
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} DOS_FILE_DESCRIPTOR_DOS5, *PDOS_FILE_DESCRIPTOR_DOS5;
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C_ASSERT(sizeof(DOS_FILE_DESCRIPTOR_DOS5) == 0x3B);
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#endif
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// Modified DOS SFT entry, compatible for NTVDM only
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typedef struct _DOS_FILE_DESCRIPTOR
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{
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WORD RefCount;
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WORD OpenMode;
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BYTE Attributes;
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WORD DeviceInfo;
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DWORD DevicePointer;
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WORD Time;
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WORD Date;
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DWORD Size;
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DWORD Position;
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DWORD Reserved;
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WORD OwnerPsp;
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HANDLE Win32Handle;
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CHAR FileName[11];
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BYTE Padding[0x13 - sizeof(HANDLE)];
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} DOS_FILE_DESCRIPTOR, *PDOS_FILE_DESCRIPTOR;
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C_ASSERT(sizeof(DOS_FILE_DESCRIPTOR) == 0x3B);
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typedef struct _DOS_SFT
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{
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DWORD Link;
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WORD NumDescriptors;
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DOS_FILE_DESCRIPTOR FileDescriptors[ANYSIZE_ARRAY];
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} DOS_SFT, *PDOS_SFT;
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/* FUNCTIONS ******************************************************************/
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BYTE DosFindFreeDescriptor(VOID);
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BYTE DosFindWin32Descriptor(HANDLE Win32Handle);
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BYTE DosFindDeviceDescriptor(DWORD DevicePointer);
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PDOS_FILE_DESCRIPTOR DosGetFileDescriptor(BYTE Id);
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PDOS_FILE_DESCRIPTOR DosGetHandleFileDescriptor(WORD DosHandle);
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WORD DosCreateFileEx
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(
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LPWORD Handle,
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LPWORD CreationStatus,
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LPCSTR FilePath,
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BYTE AccessShareModes,
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WORD CreateActionFlags,
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WORD Attributes
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);
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WORD DosCreateFile
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(
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LPWORD Handle,
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LPCSTR FilePath,
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DWORD CreationDisposition,
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WORD Attributes
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);
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WORD DosOpenFile
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(
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LPWORD Handle,
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LPCSTR FilePath,
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BYTE AccessShareModes
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);
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WORD DosReadFile
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(
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WORD FileHandle,
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DWORD Buffer,
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WORD Count,
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LPWORD BytesRead
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);
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WORD DosWriteFile
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(
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WORD FileHandle,
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DWORD Buffer,
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WORD Count,
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LPWORD BytesWritten
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);
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WORD DosSeekFile
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(
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WORD FileHandle,
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LONG Offset,
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BYTE Origin,
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LPDWORD NewOffset
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);
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BYTE DosReadLineBuffered(WORD FileHandle, DWORD Buffer, BYTE MaxSize);
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BOOL DosFlushFileBuffers(WORD FileHandle);
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BOOLEAN DosLockFile(WORD DosHandle, DWORD Offset, DWORD Size);
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BOOLEAN DosUnlockFile(WORD DosHandle, DWORD Offset, DWORD Size);
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BOOLEAN DosDeviceIoControl
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(
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WORD FileHandle,
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BYTE ControlCode,
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DWORD Buffer,
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PWORD Length
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);
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#pragma pack(pop)
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