| 1 | /* $Id: VBoxWindowsAdditions.cpp 106061 2024-09-16 14:03:52Z vboxsync $ */
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| 2 | /** @file
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| 3 | * VBoxWindowsAdditions - The Windows Guest Additions Loader.
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| 4 | *
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| 5 | * This is STUB which select whether to install 32-bit or 64-bit additions.
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| 6 | */
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| 7 |
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| 8 | /*
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| 9 | * Copyright (C) 2006-2024 Oracle and/or its affiliates.
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| 10 | *
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| 11 | * This file is part of VirtualBox base platform packages, as
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| 12 | * available from https://www.virtualbox.org.
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| 13 | *
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| 14 | * This program is free software; you can redistribute it and/or
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| 15 | * modify it under the terms of the GNU General Public License
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| 16 | * as published by the Free Software Foundation, in version 3 of the
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| 17 | * License.
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| 18 | *
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| 19 | * This program is distributed in the hope that it will be useful, but
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| 20 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 22 | * General Public License for more details.
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| 23 | *
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| 24 | * You should have received a copy of the GNU General Public License
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| 25 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 26 | *
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| 27 | * SPDX-License-Identifier: GPL-3.0-only
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| 28 | */
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| 29 |
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| 30 |
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| 31 | /*********************************************************************************************************************************
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| 32 | * Header Files *
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| 33 | *********************************************************************************************************************************/
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| 34 | #include <iprt/cdefs.h>
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| 35 | #include <iprt/win/windows.h>
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| 36 | #ifndef ERROR_ELEVATION_REQUIRED /* Windows Vista and later. */
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| 37 | # define ERROR_ELEVATION_REQUIRED 740
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| 38 | #endif
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| 39 |
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| 40 | #include <iprt/string.h>
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| 41 | #include <iprt/utf16.h>
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| 42 |
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| 43 | #include "NoCrtOutput.h"
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| 44 |
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| 45 |
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| 46 | static BOOL IsWow64(void)
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| 47 | {
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| 48 | BOOL fIsWow64 = FALSE;
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| 49 | typedef BOOL (WINAPI *LPFN_ISWOW64PROCESS)(HANDLE, PBOOL);
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| 50 | LPFN_ISWOW64PROCESS fnIsWow64Process = (LPFN_ISWOW64PROCESS)GetProcAddress(GetModuleHandleW(L"kernel32"), "IsWow64Process");
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| 51 | if (fnIsWow64Process != NULL)
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| 52 | {
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| 53 | if (!fnIsWow64Process(GetCurrentProcess(), &fIsWow64))
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| 54 | {
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| 55 | ErrorMsgLastErr("Unable to determine the process type!");
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| 56 |
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| 57 | /* Error in retrieving process type - assume that we're running on 32bit. */
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| 58 | fIsWow64 = FALSE;
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| 59 | }
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| 60 | }
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| 61 | return fIsWow64;
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| 62 | }
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| 63 |
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| 64 | static int WaitForProcess2(HANDLE hProcess)
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| 65 | {
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| 66 | /*
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| 67 | * Wait for the process, make sure the deal with messages.
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| 68 | */
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| 69 | for (;;)
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| 70 | {
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| 71 | DWORD dwRc = MsgWaitForMultipleObjects(1, &hProcess, FALSE, 5000/*ms*/, QS_ALLEVENTS);
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| 72 |
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| 73 | MSG Msg;
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| 74 | while (PeekMessageW(&Msg, NULL, 0, 0, PM_REMOVE))
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| 75 | {
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| 76 | TranslateMessage(&Msg);
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| 77 | DispatchMessageW(&Msg);
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| 78 | }
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| 79 |
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| 80 | if (dwRc == WAIT_OBJECT_0)
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| 81 | break;
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| 82 | if ( dwRc != WAIT_TIMEOUT
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| 83 | && dwRc != WAIT_OBJECT_0 + 1)
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| 84 | {
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| 85 | ErrorMsgLastErrSUR("MsgWaitForMultipleObjects failed: ", dwRc);
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| 86 | break;
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| 87 | }
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| 88 | }
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| 89 |
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| 90 | /*
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| 91 | * Collect the process info.
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| 92 | */
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| 93 | DWORD dwExitCode;
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| 94 | if (GetExitCodeProcess(hProcess, &dwExitCode))
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| 95 | return (int)dwExitCode;
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| 96 | return ErrorMsgRcLastErr(16, "GetExitCodeProcess failed");
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| 97 | }
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| 98 |
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| 99 | static int WaitForProcess(HANDLE hProcess)
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| 100 | {
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| 101 | DWORD WaitRc = WaitForSingleObjectEx(hProcess, INFINITE, TRUE);
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| 102 | while ( WaitRc == WAIT_IO_COMPLETION
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| 103 | || WaitRc == WAIT_TIMEOUT)
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| 104 | WaitRc = WaitForSingleObjectEx(hProcess, INFINITE, TRUE);
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| 105 | if (WaitRc == WAIT_OBJECT_0)
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| 106 | {
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| 107 | DWORD dwExitCode;
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| 108 | if (GetExitCodeProcess(hProcess, &dwExitCode))
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| 109 | return (int)dwExitCode;
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| 110 | return ErrorMsgRcLastErr(16, "GetExitCodeProcess failed");
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| 111 | }
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| 112 | return ErrorMsgRcLastErrSUR(16, "MsgWaitForMultipleObjects failed: ", WaitRc);
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| 113 | }
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| 114 |
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| 115 | #ifndef IPRT_NO_CRT
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| 116 | int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
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| 117 | #else
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| 118 | int main()
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| 119 | #endif
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| 120 | {
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| 121 | #ifndef IPRT_NO_CRT
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| 122 | RT_NOREF(hInstance, hPrevInstance, lpCmdLine, nCmdShow);
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| 123 | #endif
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| 124 |
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| 125 | /*
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| 126 | * Gather the parameters of the real installer program.
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| 127 | */
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| 128 | SetLastError(NO_ERROR);
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| 129 | WCHAR wszCurDir[MAX_PATH] = { 0 };
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| 130 | DWORD cwcCurDir = GetCurrentDirectoryW(sizeof(wszCurDir), wszCurDir);
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| 131 | if (cwcCurDir == 0 || cwcCurDir >= sizeof(wszCurDir))
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| 132 | return ErrorMsgRcLastErrSUR(12, "GetCurrentDirectoryW failed: ", cwcCurDir);
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| 133 |
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| 134 | SetLastError(NO_ERROR);
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| 135 | WCHAR wszExePath[MAX_PATH] = { 0 };
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| 136 | DWORD cwcExePath = GetModuleFileNameW(NULL, wszExePath, sizeof(wszExePath));
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| 137 | if (cwcExePath == 0 || cwcExePath >= sizeof(wszExePath))
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| 138 | return ErrorMsgRcLastErrSUR(13, "GetModuleFileNameW failed: ", cwcExePath);
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| 139 |
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| 140 | /*
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| 141 | * Strip the extension off the module name and construct the arch specific
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| 142 | * one of the real installer program.
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| 143 | */
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| 144 | DWORD off = cwcExePath - 1;
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| 145 | while ( off > 0
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| 146 | && ( wszExePath[off] != '/'
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| 147 | && wszExePath[off] != '\\'
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| 148 | && wszExePath[off] != ':'))
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| 149 | {
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| 150 | if (wszExePath[off] == '.')
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| 151 | {
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| 152 | wszExePath[off] = '\0';
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| 153 | cwcExePath = off;
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| 154 | break;
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| 155 | }
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| 156 | off--;
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| 157 | }
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| 158 |
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| 159 | WCHAR const *pwszSuff = IsWow64() ? L"-amd64.exe" : L"-x86.exe";
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| 160 | int rc = RTUtf16Copy(&wszExePath[cwcExePath], RT_ELEMENTS(wszExePath) - cwcExePath, pwszSuff);
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| 161 | if (RT_FAILURE(rc))
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| 162 | return ErrorMsgRc(14, "Real installer name is too long!");
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| 163 | cwcExePath += RTUtf16Len(&wszExePath[cwcExePath]);
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| 164 |
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| 165 | /*
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| 166 | * Replace the first argument of the argument list.
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| 167 | */
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| 168 | PWCHAR pwszNewCmdLine = NULL;
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| 169 | LPCWSTR pwszOrgCmdLine = GetCommandLineW();
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| 170 | if (pwszOrgCmdLine) /* Dunno if this can be NULL, but whatever. */
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| 171 | {
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| 172 | /* Skip the first argument in the original. */
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| 173 | /** @todo Is there some ISBLANK or ISSPACE macro/function in Win32 that we could
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| 174 | * use here, if it's correct wrt. command line conventions? */
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| 175 | WCHAR wch;
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| 176 | while ((wch = *pwszOrgCmdLine) == L' ' || wch == L'\t')
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| 177 | pwszOrgCmdLine++;
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| 178 | if (wch == L'"')
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| 179 | {
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| 180 | pwszOrgCmdLine++;
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| 181 | while ((wch = *pwszOrgCmdLine) != L'\0')
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| 182 | {
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| 183 | pwszOrgCmdLine++;
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| 184 | if (wch == L'"')
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| 185 | break;
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| 186 | }
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| 187 | }
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| 188 | else
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| 189 | {
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| 190 | while ((wch = *pwszOrgCmdLine) != L'\0')
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| 191 | {
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| 192 | pwszOrgCmdLine++;
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| 193 | if (wch == L' ' || wch == L'\t')
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| 194 | break;
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| 195 | }
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| 196 | }
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| 197 | while ((wch = *pwszOrgCmdLine) == L' ' || wch == L'\t')
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| 198 | pwszOrgCmdLine++;
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| 199 |
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| 200 | /* Join up "wszExePath" with the remainder of the original command line. */
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| 201 | size_t cwcOrgCmdLine = RTUtf16Len(pwszOrgCmdLine);
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| 202 | size_t cwcNewCmdLine = 1 + cwcExePath + 1 + 1 + cwcOrgCmdLine + 1;
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| 203 | PWCHAR pwsz = pwszNewCmdLine = (PWCHAR)LocalAlloc(LPTR, cwcNewCmdLine * sizeof(WCHAR));
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| 204 | if (!pwsz)
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| 205 | return ErrorMsgRcSUS(15, "Out of memory (", cwcNewCmdLine * sizeof(WCHAR), " bytes)");
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| 206 | *pwsz++ = L'"';
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| 207 | memcpy(pwsz, wszExePath, cwcExePath * sizeof(pwsz[0]));
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| 208 | pwsz += cwcExePath;
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| 209 | *pwsz++ = L'"';
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| 210 | if (cwcOrgCmdLine)
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| 211 | {
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| 212 | *pwsz++ = L' ';
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| 213 | memcpy(pwsz, pwszOrgCmdLine, cwcOrgCmdLine * sizeof(pwsz[0]));
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| 214 | }
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| 215 | else
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| 216 | {
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| 217 | *pwsz = L'\0';
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| 218 | pwszOrgCmdLine = NULL;
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| 219 | }
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| 220 | }
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| 221 |
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| 222 | /*
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| 223 | * Start the process.
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| 224 | */
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| 225 | int rcExit = 0;
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| 226 | STARTUPINFOW StartupInfo = { sizeof(StartupInfo), 0 };
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| 227 | PROCESS_INFORMATION ProcInfo = { 0 };
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| 228 | SetLastError(740);
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| 229 | BOOL fOk = CreateProcessW(wszExePath,
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| 230 | pwszNewCmdLine,
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| 231 | NULL /*pProcessAttributes*/,
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| 232 | NULL /*pThreadAttributes*/,
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| 233 | TRUE /*fInheritHandles*/,
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| 234 | 0 /*dwCreationFlags*/,
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| 235 | NULL /*pEnvironment*/,
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| 236 | NULL /*pCurrentDirectory*/,
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| 237 | &StartupInfo,
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| 238 | &ProcInfo);
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| 239 | if (fOk)
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| 240 | {
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| 241 | /* Wait for the process to finish. */
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| 242 | CloseHandle(ProcInfo.hThread);
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| 243 | rcExit = WaitForProcess(ProcInfo.hProcess);
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| 244 | CloseHandle(ProcInfo.hProcess);
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| 245 | }
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| 246 | else if (GetLastError() == ERROR_ELEVATION_REQUIRED)
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| 247 | {
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| 248 | /*
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| 249 | * Elevation is required. That can be accomplished via ShellExecuteEx
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| 250 | * and the runas atom.
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| 251 | */
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| 252 | MSG Msg;
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| 253 | PeekMessage(&Msg, NULL, 0, 0, PM_NOREMOVE);
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| 254 | CoInitializeEx(NULL, COINIT_APARTMENTTHREADED | COINIT_DISABLE_OLE1DDE);
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| 255 |
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| 256 | SHELLEXECUTEINFOW ShExecInfo = { 0 };
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| 257 | ShExecInfo.cbSize = sizeof(SHELLEXECUTEINFOW);
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| 258 | ShExecInfo.fMask = SEE_MASK_NOCLOSEPROCESS;
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| 259 | ShExecInfo.hwnd = NULL;
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| 260 | ShExecInfo.lpVerb = L"runas" ;
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| 261 | ShExecInfo.lpFile = wszExePath;
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| 262 | ShExecInfo.lpParameters = pwszOrgCmdLine; /* pass only args here!!! */
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| 263 | ShExecInfo.lpDirectory = wszCurDir;
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| 264 | ShExecInfo.nShow = SW_NORMAL;
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| 265 | ShExecInfo.hProcess = INVALID_HANDLE_VALUE;
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| 266 | if (ShellExecuteExW(&ShExecInfo))
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| 267 | {
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| 268 | if (ShExecInfo.hProcess != INVALID_HANDLE_VALUE)
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| 269 | {
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| 270 | rcExit = WaitForProcess2(ShExecInfo.hProcess);
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| 271 | CloseHandle(ShExecInfo.hProcess);
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| 272 | }
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| 273 | else
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| 274 | rcExit = ErrorMsgRc(1, "ShellExecuteExW did not return a valid process handle!");
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| 275 | }
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| 276 | else
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| 277 | rcExit = ErrorMsgRcLastErrSWSR(9, "Failed to execute '", wszExePath, "' via ShellExecuteExW!");
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| 278 | }
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| 279 | else
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| 280 | rcExit = ErrorMsgRcLastErrSWSR(8, "Failed to execute '", wszExePath, "' via CreateProcessW!");
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| 281 |
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| 282 | if (pwszNewCmdLine)
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| 283 | LocalFree(pwszNewCmdLine);
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| 284 |
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| 285 | return rcExit;
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| 286 | }
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| 287 |
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