123 lines
2.7 KiB
C++
123 lines
2.7 KiB
C++
// Copyright (c) 1998 - 1999 Microsoft Corporation
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/*++
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Module Name:
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drdetect
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Abstract:
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Detect whether RDPDR was properly installed.
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Environment:
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User mode
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Author:
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Tadb
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--*/
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#include "stdafx.h"
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#include <setupapi.h>
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////////////////////////////////////////////////////////////
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//
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// Internal Defines
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//
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#define RDPDRPNPID _T("ROOT\\RDPDR")
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#define RDPDRDEVICEID TEXT("Root\\RDPDR\\0000")
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const GUID GUID_DEVCLASS_SYSTEM =
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{ 0x4d36e97dL, 0xe325, 0x11ce, { 0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18 } };
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ULONG RDPDRINST_DetectInstall()
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/*++
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Routine Description:
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Return the number of RDPDR.SYS devices found.
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Arguments:
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NA
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Return Value:
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TRUE on success. FALSE, otherwise.
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--*/
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{
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HDEVINFO devInfoSet;
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SP_DEVINFO_DATA deviceInfoData;
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DWORD iLoop;
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BOOL bMoreDevices;
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ULONG count;
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TCHAR pnpID[256];
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GUID *pGuid=(GUID *)&GUID_DEVCLASS_SYSTEM;
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//
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// Get the set of all devices with the RDPDR PnP ID.
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//
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devInfoSet = SetupDiGetClassDevs(pGuid, NULL, NULL,
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DIGCF_PRESENT);
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if (devInfoSet == INVALID_HANDLE_VALUE) {
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fprintf(stderr, "Error getting RDPDR devices from PnP. Error code: %ld.",
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GetLastError());
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return 0;
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}
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// Get the first device.
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iLoop=0;
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deviceInfoData.cbSize = sizeof(SP_DEVINFO_DATA);
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bMoreDevices=SetupDiEnumDeviceInfo(devInfoSet, iLoop, &deviceInfoData);
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// Get the details for all matching device interfaces.
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count = 0;
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while (bMoreDevices)
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{
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// Get the PnP ID for the device.
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if (!SetupDiGetDeviceRegistryProperty(devInfoSet, &deviceInfoData,
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SPDRP_HARDWAREID, NULL, (BYTE *)pnpID,
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sizeof(pnpID), NULL)) {
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fprintf(stderr, "Error fetching PnP ID in RDPDR device node remove. Error code: %ld.",
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GetLastError());
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}
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// If the current device matches the RDPDR PNP ID
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if (!_tcscmp(pnpID, RDPDRPNPID)) {
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count++;
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}
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// Get the next one device interface.
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bMoreDevices=SetupDiEnumDeviceInfo(devInfoSet, ++iLoop, &deviceInfoData);
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}
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// Release the device info list.
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SetupDiDestroyDeviceInfoList(devInfoSet);
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return count;
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}
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//
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// Unit-Test
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//
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//void __cdecl main()
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//{
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// ULONG count;
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// count = RDPDRINST_DetectInstall();
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// printf("Found %ld instance(s) of RDPDR.SYS.\n", count);
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//}
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