Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2024-12-27 09:34:43 +00:00
Code Issues Projects Releases Packages Wiki Activity

[NTVDM] Implement INT21, AX=4408, Determine if a block device is removable.

Browse source
This commit is contained in:
Mark Jansen 2018-10-08 23:12:19 +02:00
parent 8543622a72
commit 44898a4ea4
No known key found for this signature in database
GPG key ID: B39240EE84BEAE8B
1 changed files with 69 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

70
subsystems/mvdm/ntvdm/dos/dos32krnl/dosfiles.c
View file

@ -1125,11 +1125,79 @@ BOOLEAN DosUnlockFile(WORD DosHandle, DWORD Offset, DWORD Size)
return TRUE;
}
BOOLEAN DosDeviceIoControlDrive(WORD DriveNumber, BYTE ControlCode, DWORD Buffer, PWORD Result)
{
CHAR RootPath[] = "?:\\";
if (DriveNumber == 0x00)
RootPath[0] = 'A' + Sda->CurrentDrive;
else
RootPath[0] = 'A' + DriveNumber - 1;
switch (ControlCode)
{
case 0x04:
DPRINT1("UNIMPLEMENTED INT 21h, 4404h, Read from block device %s\n", RootPath);
Sda->LastErrorCode = ERROR_INVALID_FUNCTION;
break;
case 0x05:
DPRINT1("UNIMPLEMENTED INT 21h, 4405h, Write block device control string %s\n", RootPath);
Sda->LastErrorCode = ERROR_INVALID_FUNCTION;
break;
case 0x08:
{
DWORD DriveType = GetDriveTypeA(RootPath);
switch (DriveType)
{
case DRIVE_UNKNOWN:
case DRIVE_NO_ROOT_DIR:
default:
DPRINT1("INT 21h, 4408h, %s -> DriveType = 0x%x\n", RootPath, DriveType);
*Result = 0x000f;
return TRUE;
case DRIVE_REMOVABLE:
case DRIVE_CDROM:
*Result = 0x0000;
return TRUE;
case DRIVE_FIXED:
*Result = 0x0001;
return TRUE;
case DRIVE_REMOTE:
case DRIVE_RAMDISK: // ??
break;
}
Sda->LastErrorCode = ERROR_INVALID_FUNCTION;
return FALSE;
}
case 0x09:
DPRINT1("UNIMPLEMENTED INT 21h, 4409h, Determine if a logical device is local or remote %s\n", RootPath);
Sda->LastErrorCode = ERROR_INVALID_FUNCTION;
return FALSE;
default:
assert(0);
break;
}
return FALSE;
}
BOOLEAN DosDeviceIoControl(WORD FileHandle, BYTE ControlCode, DWORD Buffer, PWORD Length)
{
PDOS_FILE_DESCRIPTOR Descriptor = DosGetHandleFileDescriptor(FileHandle);
PDOS_FILE_DESCRIPTOR Descriptor;
PDOS_DEVICE_NODE Node = NULL;
switch (ControlCode)
{
case 0x04:
case 0x05:
case 0x08:
case 0x09:
return DosDeviceIoControlDrive(FileHandle, ControlCode, Buffer, Length);
}
Descriptor = DosGetHandleFileDescriptor(FileHandle);
if (!Descriptor)
{
Sda->LastErrorCode = ERROR_INVALID_HANDLE;