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335 lines
10 KiB
C++
335 lines
10 KiB
C++
/*
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* Copyright (C) 2002 Andreas Mohr
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* Copyright (C) 2002 Shachar Shemesh
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* Copyright (C) 2013 Edijs Kolesnikovics
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/* Based on the Wine "bootup" handler application
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*
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* This app handles the various "hooks" windows allows for applications to perform
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* as part of the bootstrap process. Theses are roughly devided into three types.
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* Knowledge base articles that explain this are 137367, 179365, 232487 and 232509.
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* Also, 119941 has some info on grpconv.exe
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* The operations performed are (by order of execution):
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*
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* After log in
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* - HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnceEx (synch, no imp)
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* - HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce (synch)
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* - HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run (asynch)
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* - HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run (asynch)
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* - All users Startup folder "%ALLUSERSPROFILE%\Start Menu\Programs\Startup" (asynch, no imp)
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* - Current user Startup folder "%USERPROFILE%\Start Menu\Programs\Startup" (asynch, no imp)
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* - HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce (asynch)
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*
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* None is processed in Safe Mode // FIXME: Check RunOnceEx in Safe Mode
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*/
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#include "precomp.h"
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#define INVALID_RUNCMD_RETURN -1
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/**
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* This function runs the specified command in the specified dir.
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* [in,out] cmdline - the command line to run. The function may change the passed buffer.
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* [in] dir - the dir to run the command in. If it is NULL, then the current dir is used.
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* [in] wait - whether to wait for the run program to finish before returning.
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* [in] minimized - Whether to ask the program to run minimized.
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*
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* Returns:
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* If running the process failed, returns INVALID_RUNCMD_RETURN. Use GetLastError to get the error code.
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* If wait is FALSE - returns 0 if successful.
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* If wait is TRUE - returns the program's return value.
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*/
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static int runCmd(LPWSTR cmdline, LPCWSTR dir, BOOL wait, BOOL minimized)
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{
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STARTUPINFOW si;
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PROCESS_INFORMATION info;
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DWORD exit_code = 0;
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WCHAR szCmdLineExp[MAX_PATH+1] = L"\0";
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ExpandEnvironmentStringsW(cmdline, szCmdLineExp, _countof(szCmdLineExp));
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memset(&si, 0, sizeof(si));
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si.cb = sizeof(si);
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if (minimized)
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{
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si.dwFlags = STARTF_USESHOWWINDOW;
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si.wShowWindow = SW_MINIMIZE;
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}
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memset(&info, 0, sizeof(info));
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if (!CreateProcessW(NULL, szCmdLineExp, NULL, NULL, FALSE, 0, NULL, dir, &si, &info))
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{
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TRACE("Failed to run command (%lu)\n", GetLastError());
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return INVALID_RUNCMD_RETURN;
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}
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TRACE("Successfully ran command\n");
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if (wait)
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{ /* wait for the process to exit */
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WaitForSingleObject(info.hProcess, INFINITE);
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GetExitCodeProcess(info.hProcess, &exit_code);
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}
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CloseHandle(info.hThread);
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CloseHandle(info.hProcess);
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return exit_code;
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}
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/**
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* Process a "Run" type registry key.
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* hkRoot is the HKEY from which "Software\Microsoft\Windows\CurrentVersion" is
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* opened.
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* szKeyName is the key holding the actual entries.
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* bDelete tells whether we should delete each value right before executing it.
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* bSynchronous tells whether we should wait for the prog to complete before
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* going on to the next prog.
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*/
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static BOOL ProcessRunKeys(HKEY hkRoot, LPCWSTR szKeyName, BOOL bDelete,
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BOOL bSynchronous)
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{
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HKEY hkWin = NULL, hkRun = NULL;
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LONG res = ERROR_SUCCESS;
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DWORD i, cbMaxCmdLine = 0, cchMaxValue = 0;
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WCHAR *szCmdLine = NULL;
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WCHAR *szValue = NULL;
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if (hkRoot == HKEY_LOCAL_MACHINE)
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TRACE("processing %ls entries under HKLM\n", szKeyName);
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else
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TRACE("processing %ls entries under HKCU\n", szKeyName);
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res = RegOpenKeyExW(hkRoot,
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L"Software\\Microsoft\\Windows\\CurrentVersion",
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0,
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KEY_READ,
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&hkWin);
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if (res != ERROR_SUCCESS)
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{
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TRACE("RegOpenKeyW failed on Software\\Microsoft\\Windows\\CurrentVersion (%ld)\n", res);
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goto end;
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}
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res = RegOpenKeyExW(hkWin,
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szKeyName,
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0,
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bDelete ? KEY_ALL_ACCESS : KEY_READ,
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&hkRun);
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if (res != ERROR_SUCCESS)
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{
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if (res == ERROR_FILE_NOT_FOUND)
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{
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TRACE("Key doesn't exist - nothing to be done\n");
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res = ERROR_SUCCESS;
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}
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else
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TRACE("RegOpenKeyExW failed on run key (%ld)\n", res);
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goto end;
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}
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res = RegQueryInfoKeyW(hkRun,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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&i,
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&cchMaxValue,
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&cbMaxCmdLine,
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NULL,
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NULL);
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if (res != ERROR_SUCCESS)
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{
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TRACE("Couldn't query key info (%ld)\n", res);
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goto end;
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}
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if (i == 0)
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{
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TRACE("No commands to execute.\n");
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res = ERROR_SUCCESS;
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goto end;
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}
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szCmdLine = (WCHAR*)HeapAlloc(hProcessHeap,
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0,
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cbMaxCmdLine);
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if (szCmdLine == NULL)
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{
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TRACE("Couldn't allocate memory for the commands to be executed\n");
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res = ERROR_NOT_ENOUGH_MEMORY;
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goto end;
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}
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++cchMaxValue;
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szValue = (WCHAR*)HeapAlloc(hProcessHeap,
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0,
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cchMaxValue * sizeof(*szValue));
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if (szValue == NULL)
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{
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TRACE("Couldn't allocate memory for the value names\n");
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res = ERROR_NOT_ENOUGH_MEMORY;
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goto end;
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}
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while (i > 0)
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{
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DWORD cchValLength = cchMaxValue, cbDataLength = cbMaxCmdLine;
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DWORD type;
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--i;
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res = RegEnumValueW(hkRun,
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i,
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szValue,
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&cchValLength,
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0,
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&type,
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(PBYTE)szCmdLine,
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&cbDataLength);
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if (res != ERROR_SUCCESS)
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{
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TRACE("Couldn't read in value %lu - %ld\n", i, res);
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continue;
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}
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/* safe mode - force to run if prefixed with asterisk */
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if (GetSystemMetrics(SM_CLEANBOOT) && (szValue[0] != L'*')) continue;
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if (bDelete && (res = RegDeleteValueW(hkRun, szValue)) != ERROR_SUCCESS)
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{
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TRACE("Couldn't delete value - %lu, %ld. Running command anyways.\n", i, res);
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}
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if (type != REG_SZ)
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{
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TRACE("Incorrect type of value #%lu (%lu)\n", i, type);
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continue;
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}
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res = runCmd(szCmdLine, NULL, bSynchronous, FALSE);
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if (res == INVALID_RUNCMD_RETURN)
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{
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TRACE("Error running cmd #%lu (%lu)\n", i, GetLastError());
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}
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TRACE("Done processing cmd #%lu\n", i);
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}
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res = ERROR_SUCCESS;
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end:
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if (szValue != NULL)
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HeapFree(hProcessHeap, 0, szValue);
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if (szCmdLine != NULL)
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HeapFree(hProcessHeap, 0, szCmdLine);
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if (hkRun != NULL)
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RegCloseKey(hkRun);
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if (hkWin != NULL)
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RegCloseKey(hkWin);
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TRACE("done\n");
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return res == ERROR_SUCCESS ? TRUE : FALSE;
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}
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int
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ProcessStartupItems(VOID)
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{
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/* TODO: ProcessRunKeys already checks SM_CLEANBOOT -- items prefixed with * should probably run even in safe mode */
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BOOL bNormalBoot = GetSystemMetrics(SM_CLEANBOOT) == 0; /* Perform the operations that are performed every boot */
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/* First, set the current directory to SystemRoot */
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WCHAR gen_path[MAX_PATH];
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DWORD res;
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HKEY hSessionKey, hKey;
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HRESULT hr;
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res = GetWindowsDirectoryW(gen_path, _countof(gen_path));
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if (res == 0)
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{
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TRACE("Couldn't get the windows directory - error %lu\n", GetLastError());
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return 100;
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}
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if (!SetCurrentDirectoryW(gen_path))
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{
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TRACE("Cannot set the dir to %ls (%lu)\n", gen_path, GetLastError());
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return 100;
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}
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hr = SHCreateSessionKey(KEY_WRITE, &hSessionKey);
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if (SUCCEEDED(hr))
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{
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LONG Error;
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DWORD dwDisp;
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Error = RegCreateKeyExW(hSessionKey, L"StartupHasBeenRun", 0, NULL, REG_OPTION_VOLATILE, KEY_WRITE, NULL, &hKey, &dwDisp);
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RegCloseKey(hSessionKey);
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if (Error == ERROR_SUCCESS)
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{
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RegCloseKey(hKey);
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if (dwDisp == REG_OPENED_EXISTING_KEY)
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{
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/* Startup programs has already been run */
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return 0;
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}
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}
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}
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/* Perform the operations by order checking if policy allows it, checking if this is not Safe Mode,
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* stopping if one fails, skipping if necessary.
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*/
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res = TRUE;
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/* TODO: RunOnceEx */
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if (res && (SHRestricted(REST_NOLOCALMACHINERUNONCE) == 0))
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res = ProcessRunKeys(HKEY_LOCAL_MACHINE, L"RunOnce", TRUE, TRUE);
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if (res && bNormalBoot && (SHRestricted(REST_NOLOCALMACHINERUN) == 0))
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res = ProcessRunKeys(HKEY_LOCAL_MACHINE, L"Run", FALSE, FALSE);
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if (res && bNormalBoot && (SHRestricted(REST_NOCURRENTUSERRUNONCE) == 0))
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res = ProcessRunKeys(HKEY_CURRENT_USER, L"Run", FALSE, FALSE);
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/* TODO: All users Startup folder */
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/* TODO: Current user Startup folder */
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/* TODO: HKCU\RunOnce runs even if StartupHasBeenRun exists */
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if (res && bNormalBoot && (SHRestricted(REST_NOCURRENTUSERRUNONCE) == 0))
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res = ProcessRunKeys(HKEY_CURRENT_USER, L"RunOnce", TRUE, FALSE);
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TRACE("Operation done\n");
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return res ? 0 : 101;
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}
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