245 lines
9.9 KiB
C++
245 lines
9.9 KiB
C++
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#ifdef OS_WINCE
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#include "windows.h"
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#include <winsock.h>
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#include "ceconfig.h"
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// extern "C" {
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// The following four files are from the OS, but are needed here
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// by the GUID-generation code, so they were copied over.
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// Ick...
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#include "tdiinfo.h"
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#include "tdistat.h"
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#include "llinfo.h"
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#include "wscntl.h"
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#define REGISTRY_ROOT TEXT("Software\\Microsoft\\Terminal Server Client")
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#define REGISTRY_VALUE_UUID TEXT("UUID")
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#define ETHER_ADDRESS_LENGTH 6
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#define DEFAULT_MINIMUM_ENTITIES 32
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#define MAX_ADAPTER_DESCRIPTION_LENGTH 128
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#define RPC_UUID_TIME_HIGH_MASK 0x0FFF
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#define RPC_UUID_VERSION 0x1000
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#define RPC_UUID_RESERVED 0x80
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#define RPC_UUID_CLOCK_SEQ_HI_MASK 0x3F
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typedef struct {
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unsigned long ulTimeLow;
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unsigned short usTimeMid;
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unsigned short usTimeHiAndVersion;
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unsigned char ucClockSeqHiAndReserved;
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unsigned char ucClockSeqLow;
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unsigned char ucNodeId[6];
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} _UUID;
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static unsigned int gs_seq = 0;
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static LARGE_INTEGER gs_tm = {0};
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static unsigned char gs_ucEtherAddr[ETHER_ADDRESS_LENGTH];
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static int gs_fIsAddressInitialized = FALSE;
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static void GetAdapterAddress()
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{
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if(!gs_fIsAddressInitialized) {
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memset (gs_ucEtherAddr, 0, sizeof(gs_ucEtherAddr));
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// Load WinSock.DLL so we can call into WsControl(...)
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HINSTANCE hInstWinSock = LoadLibrary(TEXT("winsock.dll"));
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if(0 != hInstWinSock) {
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DWORD(*fpfWsControl)(DWORD Protocol, DWORD Action, LPVOID InputBuffer, LPDWORD InputBufferLength, LPVOID OutputBuffer, LPDWORD OutputBufferLength);
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fpfWsControl = (DWORD(*)(DWORD Protocol, DWORD Action, LPVOID InputBuffer, LPDWORD InputBufferLength, LPVOID OutputBuffer, LPDWORD OutputBufferLength))GetProcAddress(hInstWinSock, TEXT("WsControl"));
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if(0 != fpfWsControl) {
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// First, obtain list of TCP entities...
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TCP_REQUEST_QUERY_INFORMATION_EX req;
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memset(&req, 0, sizeof(req));
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req.ID.toi_entity.tei_entity = GENERIC_ENTITY;
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req.ID.toi_entity.tei_instance = 0;
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req.ID.toi_class = INFO_CLASS_GENERIC;
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req.ID.toi_type = INFO_TYPE_PROVIDER;
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req.ID.toi_id = ENTITY_LIST_ID;
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int iInputLen = sizeof(req);
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int iOutputLen = sizeof(TDIEntityID) * DEFAULT_MINIMUM_ENTITIES;
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TDIEntityID *pEntity = NULL;
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for ( ; ; ) {
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int iPrevOutputLen = iOutputLen;
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pEntity = (TDIEntityID*)LocalAlloc(LPTR, (size_t)iOutputLen);
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if (!pEntity)
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break;
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DWORD status = fpfWsControl(IPPROTO_TCP,
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WSCNTL_TCPIP_QUERY_INFO,
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(LPVOID)&req,
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(ULONG *)&iInputLen,
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(LPVOID)pEntity,
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(ULONG *)&iOutputLen
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);
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if (status != TDI_SUCCESS) {
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LocalFree(pEntity);
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pEntity = NULL;
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break;
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}
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if (iOutputLen <= iPrevOutputLen)
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break;
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LocalFree(pEntity);
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}
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if (0 != pEntity) {
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int iCount = (UINT)(iOutputLen / sizeof(TDIEntityID));
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// Second, walk through these in search of adapters
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TDIEntityID *pRunner = pEntity;
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for (int i = 0; i < iCount; ++i, ++pRunner) {
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// IF_ENTITY: this entity/instance describes an adapter
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if (pRunner->tei_entity == IF_ENTITY) {
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// find out if this entity supports MIB requests
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memset(&req, 0, sizeof(req));
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TDIObjectID id;
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memset (&id, 0, sizeof(id));
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id.toi_entity = *pRunner;
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id.toi_class = INFO_CLASS_GENERIC;
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id.toi_type = INFO_TYPE_PROVIDER;
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id.toi_id = ENTITY_TYPE_ID;
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req.ID = id;
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DWORD fIsMib = FALSE;
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iInputLen = sizeof(req);
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iOutputLen = sizeof(fIsMib);
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DWORD status = fpfWsControl(IPPROTO_TCP,
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WSCNTL_TCPIP_QUERY_INFO,
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(LPVOID)&req,
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(ULONG *)&iInputLen,
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(LPVOID)&fIsMib,
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(ULONG *)&iOutputLen
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);
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if (status != TDI_SUCCESS)
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break;
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if (fIsMib != IF_MIB)
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continue;
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// MIB requests supported - query the adapter info
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id.toi_class = INFO_CLASS_PROTOCOL;
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id.toi_id = IF_MIB_STATS_ID;
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memset(&req, 0, sizeof(req));
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req.ID = id;
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BYTE info[sizeof(IFEntry) + MAX_ADAPTER_DESCRIPTION_LENGTH + 1];
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iInputLen = sizeof(req);
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iOutputLen = sizeof(info);
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status = fpfWsControl(IPPROTO_TCP,
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WSCNTL_TCPIP_QUERY_INFO,
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(LPVOID)&req,
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(ULONG *)&iInputLen,
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(LPVOID)&info,
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(ULONG *)&iOutputLen
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);
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if (status != TDI_SUCCESS)
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break;
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if (iOutputLen > sizeof(info))
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continue;
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IFEntry* pIfEntry = (IFEntry*)info;
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memcpy (gs_ucEtherAddr, pIfEntry->if_physaddr, sizeof (gs_ucEtherAddr));
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gs_fIsAddressInitialized = TRUE;
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break;
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}
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}
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LocalFree (pEntity);
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}
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}
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FreeLibrary(hInstWinSock);
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}
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}
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}
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BOOL generate_guid (GUID *guid) {
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GetAdapterAddress(); // It may fail, but gs_ucEtherAddr will still be all 0
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_UUID *p_uuid = (_UUID *)guid;
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SYSTEMTIME st;
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GetLocalTime(&st);
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LARGE_INTEGER tm2;
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SystemTimeToFileTime (&st, (FILETIME *)&tm2);
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if (gs_tm.QuadPart < tm2.QuadPart)
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gs_tm = tm2;
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else
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++gs_tm.QuadPart;
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if (gs_tm.QuadPart > tm2.QuadPart + 1000) { // Clock reset or super heavy usage
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gs_tm = tm2;
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++gs_seq;
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}
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unsigned int uiLowPart = gs_tm.LowPart;
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unsigned int uiHighPart = gs_tm.HighPart;
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unsigned int uiSeq = gs_seq;
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p_uuid->ulTimeLow = (unsigned long)uiLowPart;
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p_uuid->usTimeMid = (unsigned short)(uiHighPart & 0x0000FFFF);
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p_uuid->usTimeHiAndVersion = (unsigned short)(( (unsigned short)(uiHighPart >> 16) & RPC_UUID_TIME_HIGH_MASK) | RPC_UUID_VERSION);
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p_uuid->ucClockSeqHiAndReserved = RPC_UUID_RESERVED | (((unsigned char) (uiSeq >> 8)) & (unsigned char) RPC_UUID_CLOCK_SEQ_HI_MASK);
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p_uuid->ucClockSeqLow = (unsigned char) (uiSeq & 0x00FF);
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p_uuid->ucNodeId[0] = gs_ucEtherAddr[0];
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p_uuid->ucNodeId[1] = gs_ucEtherAddr[1];
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p_uuid->ucNodeId[2] = gs_ucEtherAddr[2];
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p_uuid->ucNodeId[3] = gs_ucEtherAddr[3];
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p_uuid->ucNodeId[4] = gs_ucEtherAddr[4];
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p_uuid->ucNodeId[5] = gs_ucEtherAddr[5];
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return TRUE;
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}
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BOOL OEMGetUUID(GUID* pGuid)
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{
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DWORD len;
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HKEY hKey;
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BOOL fRetVal = FALSE;
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len = sizeof(UUID);
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// Try to read the UUID from the registry - if we find one, use it
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if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, REGISTRY_ROOT, 0, KEY_READ, &hKey) == ERROR_SUCCESS)
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{
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DWORD dwType;
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if ( ( RegQueryValueEx(hKey, REGISTRY_VALUE_UUID, 0, &dwType,
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(BYTE*)pGuid, &len) == ERROR_SUCCESS) && (sizeof(UUID) == len) )
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{
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fRetVal = TRUE;
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}
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RegCloseKey(hKey);
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}
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if (!fRetVal)
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{
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// We didn't find a UUID in the registry, so we need to generate one now
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// First, try asking the hardware for a UUID...
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fRetVal = KernelIoControl(IOCTL_HAL_GET_UUID, NULL, 0, pGuid, len, &len);
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// If the hardware was unable to provide a UUID, generate one now.
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if (!fRetVal)
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{
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fRetVal = generate_guid(pGuid);
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}
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// Save the UUID (however we got it) in the registry so that we will always use this UUID
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if(fRetVal) {
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DWORD dwDisposition;
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BOOL fSavedKey = FALSE;
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if (RegCreateKeyEx(HKEY_LOCAL_MACHINE, REGISTRY_ROOT, 0, 0, 0, KEY_ALL_ACCESS, 0, &hKey, &dwDisposition) == ERROR_SUCCESS)
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{
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if (RegSetValueEx(hKey, REGISTRY_VALUE_UUID, 0, REG_BINARY, (BYTE*)pGuid, len) == ERROR_SUCCESS)
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{
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fSavedKey = TRUE;
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}
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RegCloseKey(hKey);
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}
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// If we can't save the registry key, we have to return failure because we don't want to leak licenses
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fRetVal = fSavedKey;
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}
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}
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if (!fRetVal)
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{
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// We failed to generate a UUID.
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MessageBox(NULL,
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TEXT("Can't read or generate licensing information. (Unable to generate a UUID or read one from the registry.)"),
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TEXT("Error"), MB_OK);
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}
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return fRetVal;
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}
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// }; // extern "C"
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#endif // OS_WINCE
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