546 lines
16 KiB
C
546 lines
16 KiB
C
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//
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// runonce.c (shared runonce code between explorer.exe and runonce.exe)
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//
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#include <runonce.h>
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#if (_WIN32_WINNT >= 0x0500)
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// stolen from <tsappcmp.h>
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#define TERMSRV_COMPAT_WAIT_USING_JOB_OBJECTS 0x00008000
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#define CompatibilityApp 1
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typedef LONG TERMSRV_COMPATIBILITY_CLASS;
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typedef BOOL (* PFNGSETTERMSRVAPPINSTALLMODE)(BOOL bState);
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typedef BOOL (* PFNGETTERMSRVCOMPATFLAGSEX)(LPWSTR pwszApp, DWORD* pdwFlags, TERMSRV_COMPATIBILITY_CLASS tscc);
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// even though this function is in kernel32.lib, we need to have a LoadLibrary/GetProcAddress
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// thunk for downlevel components who include this
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STDAPI_(BOOL) SHSetTermsrvAppInstallMode(BOOL bState)
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{
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static PFNGSETTERMSRVAPPINSTALLMODE pfn = NULL;
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if (pfn == NULL)
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{
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// kernel32 should already be loaded
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HMODULE hmod = GetModuleHandle(TEXT("kernel32.dll"));
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if (hmod)
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{
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pfn = (PFNGSETTERMSRVAPPINSTALLMODE)GetProcAddress(hmod, "SetTermsrvAppInstallMode");
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}
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else
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{
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pfn = (PFNGSETTERMSRVAPPINSTALLMODE)-1;
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}
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}
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if (pfn && (pfn != (PFNGSETTERMSRVAPPINSTALLMODE)-1))
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{
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return pfn(bState);
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}
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else
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{
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return FALSE;
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}
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}
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STDAPI_(ULONG) SHGetTermsrCompatFlagsEx(LPWSTR pwszApp, DWORD* pdwFlags, TERMSRV_COMPATIBILITY_CLASS tscc)
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{
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static PFNGETTERMSRVCOMPATFLAGSEX pfn = NULL;
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if (pfn == NULL)
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{
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HMODULE hmod = LoadLibrary(TEXT("TSAppCMP.DLL"));
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if (hmod)
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{
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pfn = (PFNGETTERMSRVCOMPATFLAGSEX)GetProcAddress(hmod, "GetTermsrCompatFlagsEx");
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}
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else
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{
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pfn = (PFNGETTERMSRVCOMPATFLAGSEX)-1;
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}
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}
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if (pfn && (pfn != (PFNGETTERMSRVCOMPATFLAGSEX)-1))
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{
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return pfn(pwszApp, pdwFlags, tscc);
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}
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else
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{
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*pdwFlags = 0;
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return 0;
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}
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}
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HANDLE SetJobCompletionPort(HANDLE hJob)
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{
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HANDLE hRet = NULL;
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HANDLE hIOPort = CreateIoCompletionPort(INVALID_HANDLE_VALUE, NULL, 0, 1);
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if (hIOPort != NULL)
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{
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JOBOBJECT_ASSOCIATE_COMPLETION_PORT CompletionPort;
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CompletionPort.CompletionKey = hJob ;
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CompletionPort.CompletionPort = hIOPort;
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if (SetInformationJobObject(hJob,
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JobObjectAssociateCompletionPortInformation,
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&CompletionPort,
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sizeof(CompletionPort)))
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{
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hRet = hIOPort;
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}
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else
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{
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CloseHandle(hIOPort);
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}
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}
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return hRet;
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}
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STDAPI_(DWORD) WaitingThreadProc(void *pv)
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{
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HANDLE hIOPort = (HANDLE)pv;
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if (hIOPort)
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{
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while (TRUE)
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{
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DWORD dwCompletionCode;
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ULONG_PTR pCompletionKey;
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LPOVERLAPPED pOverlapped;
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if (!GetQueuedCompletionStatus(hIOPort, &dwCompletionCode, &pCompletionKey, &pOverlapped, INFINITE) ||
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(dwCompletionCode == JOB_OBJECT_MSG_ACTIVE_PROCESS_ZERO))
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{
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break;
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}
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}
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}
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return 0;
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}
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//
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// The following handles running an application and optionally waiting for it
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// to all the child procs to terminate. This is accomplished thru Kernel Job Objects
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// which is only available in NT5
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//
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BOOL _CreateRegJob(LPCTSTR pszCmd, BOOL bWait)
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{
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BOOL bRet = FALSE;
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HANDLE hJobObject = CreateJobObjectW(NULL, NULL);
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if (hJobObject)
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{
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HANDLE hIOPort = SetJobCompletionPort(hJobObject);
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if (hIOPort)
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{
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DWORD dwID;
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HANDLE hThread = CreateThread(NULL,
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0,
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WaitingThreadProc,
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(void*)hIOPort,
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CREATE_SUSPENDED,
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&dwID);
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if (hThread)
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{
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PROCESS_INFORMATION pi = {0};
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STARTUPINFO si = {0};
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UINT fMask = SEE_MASK_FLAG_NO_UI;
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DWORD dwCreationFlags = CREATE_SUSPENDED;
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TCHAR sz[MAX_PATH * 2];
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wnsprintf(sz, ARRAYSIZE(sz), TEXT("RunDLL32.EXE Shell32.DLL,ShellExec_RunDLL ?0x%X?%s"), fMask, pszCmd);
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si.cb = sizeof(si);
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if (CreateProcess(NULL,
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sz,
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NULL,
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NULL,
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FALSE,
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dwCreationFlags,
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NULL,
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NULL,
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&si,
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&pi))
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{
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if (AssignProcessToJobObject(hJobObject, pi.hProcess))
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{
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// success!
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bRet = TRUE;
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ResumeThread(pi.hThread);
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ResumeThread(hThread);
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if (bWait)
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{
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SHProcessMessagesUntilEvent(NULL, hThread, INFINITE);
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}
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}
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else
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{
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TerminateProcess(pi.hProcess, ERROR_ACCESS_DENIED);
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}
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CloseHandle(pi.hProcess);
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CloseHandle(pi.hThread);
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}
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if (!bRet)
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{
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TerminateThread(hThread, ERROR_ACCESS_DENIED);
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}
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CloseHandle(hThread);
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}
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CloseHandle(hIOPort);
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}
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CloseHandle(hJobObject);
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}
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return bRet;
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}
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BOOL _TryHydra(LPCTSTR pszCmd, RRA_FLAGS *pflags)
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{
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// See if the terminal-services is enabled in "Application Server" mode
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if (IsOS(OS_TERMINALSERVER) && SHSetTermsrvAppInstallMode(TRUE))
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{
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WCHAR sz[MAX_PATH];
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*pflags |= RRA_WAIT;
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// Changing timing blows up IE 4.0, but IE5 is ok!
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// we are on a TS machine, NT version 4 or 5, with admin priv
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// see if the app-compatability flag is set for this executable
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// to use the special job-objects for executing module
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// get the module name, without the arguments
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if (0 < PathProcessCommand(pszCmd, sz, ARRAYSIZE(sz), PPCF_NODIRECTORIES))
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{
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ULONG ulCompat;
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SHGetTermsrCompatFlagsEx(sz, &ulCompat, CompatibilityApp);
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// if the special flag for this module-name is set...
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if (ulCompat & TERMSRV_COMPAT_WAIT_USING_JOB_OBJECTS)
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{
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*pflags |= RRA_USEJOBOBJECTS;
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}
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}
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return TRUE;
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}
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return FALSE;
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}
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#endif // (_WIN32_WINNT >= 0x0500)
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//
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// On success: returns process handle or INVALID_HANDLE_VALUE if no process
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// was launched (i.e., launched via DDE).
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// On failure: returns INVALID_HANDLE_VALUE.
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//
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BOOL _ShellExecRegApp(LPCTSTR pszCmd, BOOL fNoUI, BOOL fWait)
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{
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TCHAR szQuotedCmdLine[MAX_PATH+2];
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LPTSTR pszArgs;
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SHELLEXECUTEINFO ei = {0};
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// Gross, but if the process command fails, copy the command line to let
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// shell execute report the errors
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if (PathProcessCommand((LPWSTR)pszCmd,
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(LPWSTR)szQuotedCmdLine,
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ARRAYSIZE(szQuotedCmdLine),
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PPCF_ADDARGUMENTS|PPCF_FORCEQUALIFY) == -1)
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{
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lstrcpy(szQuotedCmdLine, pszCmd);
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}
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pszArgs= PathGetArgs(szQuotedCmdLine);
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if (*pszArgs)
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{
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// Strip args
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*(pszArgs - 1) = 0;
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}
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PathUnquoteSpaces(szQuotedCmdLine);
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ei.cbSize = sizeof(SHELLEXECUTEINFO);
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ei.lpFile = szQuotedCmdLine;
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ei.lpParameters = pszArgs;
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ei.nShow = SW_SHOWNORMAL;
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ei.fMask = SEE_MASK_NOCLOSEPROCESS;
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if (fNoUI)
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{
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ei.fMask |= SEE_MASK_FLAG_NO_UI;
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}
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if (ShellExecuteEx(&ei))
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{
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if (ei.hProcess)
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{
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if (fWait)
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{
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SHProcessMessagesUntilEvent(NULL, ei.hProcess, INFINITE);
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}
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CloseHandle(ei.hProcess);
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}
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return TRUE;
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}
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else
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{
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return FALSE;
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}
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}
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// The following handles running an application and optionally waiting for it
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// to terminate.
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STDAPI_(BOOL) ShellExecuteRegApp(LPCTSTR pszCmdLine, RRA_FLAGS fFlags)
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{
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BOOL bRet = FALSE;
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if (!pszCmdLine || !*pszCmdLine)
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{
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// Don't let empty strings through, they will endup doing something dumb
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// like opening a command prompt or the like
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return bRet;
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}
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#if (_WIN32_WINNT >= 0x0500)
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if (fFlags & RRA_USEJOBOBJECTS)
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{
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bRet = _CreateRegJob(pszCmdLine, fFlags & RRA_WAIT);
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}
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#endif
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if (!bRet)
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{
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// fallback if necessary.
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bRet = _ShellExecRegApp(pszCmdLine, fFlags & RRA_NOUI, fFlags & RRA_WAIT);
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}
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return bRet;
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}
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STDAPI_(BOOL) Cabinet_EnumRegApps(HKEY hkeyParent, LPCTSTR pszSubkey, RRA_FLAGS fFlags, PFNREGAPPSCALLBACK pfnCallback, LPARAM lParam)
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{
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HKEY hkey;
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BOOL bRet = TRUE;
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// With the addition of the ACL controlled "policy" run keys RegOpenKey
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// might fail on the pszSubkey. Use RegOpenKeyEx with MAXIMIM_ALLOWED
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// to ensure that we successfully open the subkey.
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if (RegOpenKeyEx(hkeyParent, pszSubkey, 0, MAXIMUM_ALLOWED, &hkey) == ERROR_SUCCESS)
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{
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DWORD cbValue;
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DWORD dwType;
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DWORD i;
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TCHAR szValueName[80];
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TCHAR szCmdLine[MAX_PATH];
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HDPA hdpaEntries = NULL;
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#ifdef DEBUG
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//
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// we only support named values so explicitly purge default values
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//
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LONG cbData = sizeof(szCmdLine);
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if (RegQueryValue(hkey, NULL, szCmdLine, &cbData) == ERROR_SUCCESS)
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{
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ASSERTMSG((cbData <= 2), "Cabinet_EnumRegApps: BOGUS default entry in <%s> '%s'", pszSubkey, szCmdLine);
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RegDeleteValue(hkey, NULL);
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}
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#endif
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// now enumerate all of the values.
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for (i = 0; !g_fEndSession ; i++)
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{
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LONG lEnum;
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DWORD cbData;
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cbValue = ARRAYSIZE(szValueName);
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cbData = sizeof(szCmdLine);
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lEnum = RegEnumValue(hkey, i, szValueName, &cbValue, NULL, &dwType, (LPBYTE)szCmdLine, &cbData);
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if (ERROR_MORE_DATA == lEnum)
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{
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// ERROR_MORE_DATA means the value name or data was too large
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// skip to the next item
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TraceMsg(TF_WARNING, "Cabinet_EnumRegApps: cannot run oversize entry '%s' in <%s>", szValueName, pszSubkey);
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continue;
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}
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else if (lEnum != ERROR_SUCCESS)
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{
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if (lEnum != ERROR_NO_MORE_ITEMS)
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{
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// we hit some kind of registry failure
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bRet = FALSE;
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}
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break;
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}
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if ((dwType == REG_SZ) || (dwType == REG_EXPAND_SZ))
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{
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REGAPP_INFO * prai;
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|
|
if (dwType == REG_EXPAND_SZ)
|
||
|
|
{
|
||
|
|
DWORD dwChars;
|
||
|
|
TCHAR szCmdLineT[MAX_PATH];
|
||
|
|
|
||
|
|
lstrcpy(szCmdLineT, szCmdLine);
|
||
|
|
dwChars = SHExpandEnvironmentStrings(szCmdLineT,
|
||
|
|
szCmdLine,
|
||
|
|
ARRAYSIZE(szCmdLine));
|
||
|
|
if ((dwChars == 0) || (dwChars > ARRAYSIZE(szCmdLine)))
|
||
|
|
{
|
||
|
|
// bail on this value if we failed the expansion, or if the string is > MAX_PATH
|
||
|
|
TraceMsg(TF_WARNING, "Cabinet_EnumRegApps: expansion of '%s' in <%s> failed or is too long", szCmdLineT, pszSubkey);
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
TraceMsg(TF_GENERAL, "Cabinet_EnumRegApps: subkey = %s cmdline = %s", pszSubkey, szCmdLine);
|
||
|
|
|
||
|
|
if (g_fCleanBoot && (szValueName[0] != TEXT('*')))
|
||
|
|
{
|
||
|
|
// only run things marked with a "*" in when in SafeMode
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
// We used to execute each entry, wait for it to finish, and then make the next call to
|
||
|
|
// RegEnumValue(). The problem with this is that some apps add themselves back to the runonce
|
||
|
|
// after they are finished (test harnesses that reboot machines and want to be restarted) and
|
||
|
|
// we dont want to delete them, so we snapshot the registry keys and execute them after we
|
||
|
|
// have finished the enum.
|
||
|
|
prai = (REGAPP_INFO *)LocalAlloc(LPTR, sizeof(REGAPP_INFO));
|
||
|
|
if (prai)
|
||
|
|
{
|
||
|
|
lstrcpy(prai->szSubkey, pszSubkey);
|
||
|
|
lstrcpy(prai->szValueName, szValueName);
|
||
|
|
lstrcpy(prai->szCmdLine, szCmdLine);
|
||
|
|
|
||
|
|
if (!hdpaEntries)
|
||
|
|
{
|
||
|
|
hdpaEntries = DPA_Create(5);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!hdpaEntries || (DPA_AppendPtr(hdpaEntries, prai) == -1))
|
||
|
|
{
|
||
|
|
LocalFree(prai);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (hdpaEntries)
|
||
|
|
{
|
||
|
|
int iIndex;
|
||
|
|
int iTotal = DPA_GetPtrCount(hdpaEntries);
|
||
|
|
|
||
|
|
for (iIndex = 0; iIndex < iTotal; iIndex++)
|
||
|
|
{
|
||
|
|
REGAPP_INFO* prai = (REGAPP_INFO*)DPA_GetPtr(hdpaEntries, iIndex);
|
||
|
|
ASSERT(prai);
|
||
|
|
|
||
|
|
// NB Things marked with a '!' mean delete after
|
||
|
|
// the CreateProcess not before. This is to allow
|
||
|
|
// certain apps (runonce.exe) to be allowed to rerun
|
||
|
|
// to if the machine goes down in the middle of execing
|
||
|
|
// them. Be very afraid of this switch.
|
||
|
|
if ((fFlags & RRA_DELETE) && (prai->szValueName[0] != TEXT('!')))
|
||
|
|
{
|
||
|
|
// This delete can fail if the user doesn't have the privilege
|
||
|
|
if (RegDeleteValue(hkey, prai->szValueName) != ERROR_SUCCESS)
|
||
|
|
{
|
||
|
|
TraceMsg(TF_WARNING, "Cabinet_EnumRegApps: skipping entry %s (cannot delete the value)", prai->szValueName);
|
||
|
|
LocalFree(prai);
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
pfnCallback(prai->szSubkey, prai->szCmdLine, fFlags, lParam);
|
||
|
|
|
||
|
|
// Post delete '!' things.
|
||
|
|
if ((fFlags & RRA_DELETE) && (prai->szValueName[0] == TEXT('!')))
|
||
|
|
{
|
||
|
|
// This delete can fail if the user doesn't have the privilege
|
||
|
|
if (RegDeleteValue(hkey, prai->szValueName) != ERROR_SUCCESS)
|
||
|
|
{
|
||
|
|
TraceMsg(TF_WARNING, "Cabinet_EnumRegApps: cannot delete the value %s ", prai->szValueName);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
LocalFree(prai);
|
||
|
|
}
|
||
|
|
|
||
|
|
DPA_Destroy(hdpaEntries);
|
||
|
|
hdpaEntries = NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
RegCloseKey(hkey);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
TraceMsg(TF_WARNING, "Cabinet_EnumRegApps: failed to open subkey %s !", pszSubkey);
|
||
|
|
bRet = FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
if (g_fEndSession)
|
||
|
|
{
|
||
|
|
// NOTE: this is for explorer only, other consumers of runonce.c must declare g_fEndSession but leave
|
||
|
|
// it set to FALSE always.
|
||
|
|
|
||
|
|
// if we rx'd a WM_ENDSESSION whilst running any of these keys we must exit the process.
|
||
|
|
ExitProcess(0);
|
||
|
|
}
|
||
|
|
|
||
|
|
return bRet;
|
||
|
|
}
|
||
|
|
|
||
|
|
STDAPI_(BOOL) ExecuteRegAppEnumProc(LPCTSTR szSubkey, LPCTSTR szCmdLine, RRA_FLAGS fFlags, LPARAM lParam)
|
||
|
|
{
|
||
|
|
BOOL bRet;
|
||
|
|
RRA_FLAGS flagsTemp = fFlags;
|
||
|
|
BOOL fInTSInstallMode = FALSE;
|
||
|
|
|
||
|
|
#if (_WIN32_WINNT >= 0x0500)
|
||
|
|
// In here, We only attempt TS specific in app-install-mode
|
||
|
|
// if RunOnce entries are being processed
|
||
|
|
if (0 == lstrcmpi(szSubkey, REGSTR_PATH_RUNONCE))
|
||
|
|
{
|
||
|
|
fInTSInstallMode = _TryHydra(szCmdLine, &flagsTemp);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
bRet = ShellExecuteRegApp(szCmdLine, flagsTemp);
|
||
|
|
|
||
|
|
#if (_WIN32_WINNT >= 0x0500)
|
||
|
|
if (fInTSInstallMode)
|
||
|
|
{
|
||
|
|
SHSetTermsrvAppInstallMode(FALSE);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
return bRet;
|
||
|
|
}
|