TSRM_API int tsrm_win32_access(const char *pathname, int mode)
{
time_t t;
HANDLE thread_token = NULL;
PSID token_sid;
SECURITY_INFORMATION sec_info = OWNER_SECURITY_INFORMATION | GROUP_SECURITY_INFORMATION | DACL_SECURITY_INFORMATION;
GENERIC_MAPPING gen_map = { FILE_GENERIC_READ, FILE_GENERIC_WRITE, FILE_GENERIC_EXECUTE, FILE_ALL_ACCESS };
DWORD priv_set_length = sizeof(PRIVILEGE_SET);
PRIVILEGE_SET privilege_set = {0};
DWORD sec_desc_length = 0, desired_access = 0, granted_access = 0;
BYTE * psec_desc = NULL;
BOOL fAccess = FALSE;
realpath_cache_bucket * bucket = NULL;
char * real_path = NULL;
PHP_WIN32_IOUTIL_INIT_W(pathname)
if (!pathw) {
return -1;
}
if (mode == 1 /*X_OK*/) {
DWORD type;
int ret;
ret = GetBinaryTypeW(pathw, &type) ? 0 : -1;
PHP_WIN32_IOUTIL_CLEANUP_W()
return ret;
} else {
/*
* @implemented
*/
BOOL
WINAPI
GetBinaryTypeA(IN LPCSTR lpApplicationName,
OUT LPDWORD lpBinaryType)
{
ANSI_STRING ApplicationNameString;
UNICODE_STRING ApplicationNameW;
BOOL StringAllocated = FALSE, Result;
NTSTATUS Status;
RtlInitAnsiString(&ApplicationNameString, lpApplicationName);
if (ApplicationNameString.Length * sizeof(WCHAR) >= NtCurrentTeb()->StaticUnicodeString.MaximumLength)
{
StringAllocated = TRUE;
Status = RtlAnsiStringToUnicodeString(&ApplicationNameW, &ApplicationNameString, TRUE);
}
else
{
Status = RtlAnsiStringToUnicodeString(&(NtCurrentTeb()->StaticUnicodeString), &ApplicationNameString, FALSE);
}
if (!NT_SUCCESS(Status))
{
BaseSetLastNTError(Status);
return FALSE;
}
if (StringAllocated)
{
Result = GetBinaryTypeW(ApplicationNameW.Buffer, lpBinaryType);
RtlFreeUnicodeString(&ApplicationNameW);
}
else
{
Result = GetBinaryTypeW(NtCurrentTeb()->StaticUnicodeString.Buffer, lpBinaryType);
}
return Result;
}
static DWORD service_start_process(struct service_entry *service_entry, HANDLE *process)
{
PROCESS_INFORMATION pi;
STARTUPINFOW si;
LPWSTR path = NULL;
DWORD size;
BOOL r;
service_lock_exclusive(service_entry);
if (!env)
{
HANDLE htok;
if (OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY|TOKEN_DUPLICATE, &htok))
CreateEnvironmentBlock(&env, htok, FALSE);
if (!env)
WINE_ERR("failed to create services environment\n");
}
size = ExpandEnvironmentStringsW(service_entry->config.lpBinaryPathName,NULL,0);
path = HeapAlloc(GetProcessHeap(),0,size*sizeof(WCHAR));
if (!path)
{
service_unlock(service_entry);
return ERROR_NOT_ENOUGH_SERVER_MEMORY;
}
ExpandEnvironmentStringsW(service_entry->config.lpBinaryPathName,path,size);
if (service_entry->config.dwServiceType == SERVICE_KERNEL_DRIVER)
{
static const WCHAR winedeviceW[] = {'\\','w','i','n','e','d','e','v','i','c','e','.','e','x','e',' ',0};
WCHAR system_dir[MAX_PATH];
DWORD type, len;
GetSystemDirectoryW( system_dir, MAX_PATH );
if (is_win64)
{
if (!GetBinaryTypeW( path, &type ))
{
HeapFree( GetProcessHeap(), 0, path );
service_unlock(service_entry);
return GetLastError();
}
if (type == SCS_32BIT_BINARY) GetSystemWow64DirectoryW( system_dir, MAX_PATH );
}
len = strlenW( system_dir ) + sizeof(winedeviceW)/sizeof(WCHAR) + strlenW(service_entry->name);
HeapFree( GetProcessHeap(), 0, path );
if (!(path = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) )))
{
service_unlock(service_entry);
return ERROR_NOT_ENOUGH_SERVER_MEMORY;
}
lstrcpyW( path, system_dir );
lstrcatW( path, winedeviceW );
lstrcatW( path, service_entry->name );
}
ZeroMemory(&si, sizeof(STARTUPINFOW));
si.cb = sizeof(STARTUPINFOW);
if (!(service_entry->config.dwServiceType & SERVICE_INTERACTIVE_PROCESS))
{
static WCHAR desktopW[] = {'_','_','w','i','n','e','s','e','r','v','i','c','e','_','w','i','n','s','t','a','t','i','o','n','\\','D','e','f','a','u','l','t',0};
si.lpDesktop = desktopW;
}
service_entry->status.dwCurrentState = SERVICE_START_PENDING;
service_unlock(service_entry);
r = CreateProcessW(NULL, path, NULL, NULL, FALSE, CREATE_UNICODE_ENVIRONMENT, env, NULL, &si, &pi);
HeapFree(GetProcessHeap(),0,path);
if (!r)
{
service_lock_exclusive(service_entry);
service_entry->status.dwCurrentState = SERVICE_STOPPED;
service_unlock(service_entry);
return GetLastError();
}
service_entry->status.dwProcessId = pi.dwProcessId;
service_entry->process = pi.hProcess;
*process = pi.hProcess;
CloseHandle( pi.hThread );
return ERROR_SUCCESS;
}
}
QTCREATOR_UTILS_EXPORT bool winIs64BitSystem()
{
SYSTEM_INFO systemInfo;
GetNativeSystemInfo(&systemInfo);
return systemInfo.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64
|| systemInfo.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_IA64;
}
QTCREATOR_UTILS_EXPORT bool winIs64BitBinary(const QString &binaryIn)
{
QTC_ASSERT(!binaryIn.isEmpty(), return false);
#ifdef Q_OS_WIN32
# ifdef __GNUC__ // MinGW lacking some definitions/winbase.h
# define SCS_64BIT_BINARY 6
# endif
bool isAmd64 = false;
DWORD binaryType = 0;
const QString binary = QDir::toNativeSeparators(binaryIn);
bool success = GetBinaryTypeW(reinterpret_cast<const TCHAR*>(binary.utf16()), &binaryType) != 0;
if (success && binaryType == SCS_64BIT_BINARY)
isAmd64=true;
return isAmd64;
#else
return false;
#endif
}
} // namespace Utils
static DWORD shgfi_get_exe_type(LPCWSTR szFullPath)
{
BOOL status = FALSE;
HANDLE hfile;
DWORD BinaryType;
IMAGE_DOS_HEADER mz_header;
IMAGE_NT_HEADERS nt;
DWORD len;
char magic[4];
status = GetBinaryTypeW (szFullPath, &BinaryType);
if (!status)
return 0;
if (BinaryType == SCS_DOS_BINARY || BinaryType == SCS_PIF_BINARY)
return 0x4d5a;
hfile = CreateFileW( szFullPath, GENERIC_READ, FILE_SHARE_READ,
NULL, OPEN_EXISTING, 0, 0 );
if ( hfile == INVALID_HANDLE_VALUE )
return 0;
/*
* The next section is adapted from MODULE_GetBinaryType, as we need
* to examine the image header to get OS and version information. We
* know from calling GetBinaryTypeA that the image is valid and either
* an NE or PE, so much error handling can be omitted.
* Seek to the start of the file and read the header information.
*/
SetFilePointer( hfile, 0, NULL, SEEK_SET );
ReadFile( hfile, &mz_header, sizeof(mz_header), &len, NULL );
SetFilePointer( hfile, mz_header.e_lfanew, NULL, SEEK_SET );
ReadFile( hfile, magic, sizeof(magic), &len, NULL );
if ( *(DWORD*)magic == IMAGE_NT_SIGNATURE )
{
SetFilePointer( hfile, mz_header.e_lfanew, NULL, SEEK_SET );
ReadFile( hfile, &nt, sizeof(nt), &len, NULL );
CloseHandle( hfile );
/* DLL files are not executable and should return 0 */
if (nt.FileHeader.Characteristics & IMAGE_FILE_DLL)
return 0;
if (nt.OptionalHeader.Subsystem == IMAGE_SUBSYSTEM_WINDOWS_GUI)
{
return IMAGE_NT_SIGNATURE |
(nt.OptionalHeader.MajorSubsystemVersion << 24) |
(nt.OptionalHeader.MinorSubsystemVersion << 16);
}
return IMAGE_NT_SIGNATURE;
}
else if ( *(WORD*)magic == IMAGE_OS2_SIGNATURE )
{
IMAGE_OS2_HEADER ne;
SetFilePointer( hfile, mz_header.e_lfanew, NULL, SEEK_SET );
ReadFile( hfile, &ne, sizeof(ne), &len, NULL );
CloseHandle( hfile );
if (ne.ne_exetyp == 2)
return IMAGE_OS2_SIGNATURE | (ne.ne_expver << 16);
return 0;
}
CloseHandle( hfile );
return 0;
}
static void
locate_pythons_for_key(HKEY root, REGSAM flags)
{
HKEY core_root, ip_key;
LSTATUS status = RegOpenKeyExW(root, CORE_PATH, 0, flags, &core_root);
wchar_t message[MSGSIZE];
DWORD i;
size_t n;
BOOL ok;
DWORD type, data_size, attrs;
INSTALLED_PYTHON * ip, * pip;
wchar_t ip_version[IP_VERSION_SIZE];
wchar_t ip_path[IP_SIZE];
wchar_t * check;
wchar_t ** checkp;
wchar_t *key_name = (root == HKEY_LOCAL_MACHINE) ? L"HKLM" : L"HKCU";
if (status != ERROR_SUCCESS)
debug(L"locate_pythons_for_key: unable to open PythonCore key in %ls\n",
key_name);
else {
ip = &installed_pythons[num_installed_pythons];
for (i = 0; num_installed_pythons < MAX_INSTALLED_PYTHONS; i++) {
status = RegEnumKeyW(core_root, i, ip_version, IP_VERSION_SIZE);
if (status != ERROR_SUCCESS) {
if (status != ERROR_NO_MORE_ITEMS) {
/* unexpected error */
winerror(status, message, MSGSIZE);
debug(L"Can't enumerate registry key for version %ls: %ls\n",
ip_version, message);
}
break;
}
else {
wcsncpy_s(ip->version, MAX_VERSION_SIZE, ip_version,
MAX_VERSION_SIZE-1);
_snwprintf_s(ip_path, IP_SIZE, _TRUNCATE,
L"%ls\\%ls\\InstallPath", CORE_PATH, ip_version);
status = RegOpenKeyExW(root, ip_path, 0, flags, &ip_key);
if (status != ERROR_SUCCESS) {
winerror(status, message, MSGSIZE);
// Note: 'message' already has a trailing \n
debug(L"%ls\\%ls: %ls", key_name, ip_path, message);
continue;
}
data_size = sizeof(ip->executable) - 1;
status = RegQueryValueExW(ip_key, NULL, NULL, &type,
(LPBYTE)ip->executable, &data_size);
RegCloseKey(ip_key);
if (status != ERROR_SUCCESS) {
winerror(status, message, MSGSIZE);
debug(L"%ls\\%ls: %ls\n", key_name, ip_path, message);
continue;
}
if (type == REG_SZ) {
data_size = data_size / sizeof(wchar_t) - 1; /* for NUL */
if (ip->executable[data_size - 1] == L'\\')
--data_size; /* reg value ended in a backslash */
/* ip->executable is data_size long */
for (checkp = location_checks; *checkp; ++checkp) {
check = *checkp;
_snwprintf_s(&ip->executable[data_size],
MAX_PATH - data_size,
MAX_PATH - data_size,
L"%ls%ls", check, PYTHON_EXECUTABLE);
attrs = GetFileAttributesW(ip->executable);
if (attrs == INVALID_FILE_ATTRIBUTES) {
winerror(GetLastError(), message, MSGSIZE);
debug(L"locate_pythons_for_key: %ls: %ls",
ip->executable, message);
}
else if (attrs & FILE_ATTRIBUTE_DIRECTORY) {
debug(L"locate_pythons_for_key: '%ls' is a \
directory\n",
ip->executable, attrs);
}
else if (find_existing_python(ip->executable)) {
debug(L"locate_pythons_for_key: %ls: already \
found\n", ip->executable);
}
else {
/* check the executable type. */
ok = GetBinaryTypeW(ip->executable, &attrs);
if (!ok) {
debug(L"Failure getting binary type: %ls\n",
ip->executable);
}
else {
if (attrs == SCS_64BIT_BINARY)
ip->bits = 64;
else if (attrs == SCS_32BIT_BINARY)
ip->bits = 32;
else
ip->bits = 0;
if (ip->bits == 0) {
debug(L"locate_pythons_for_key: %ls: \
invalid binary type: %X\n",
ip->executable, attrs);
}
else {
if (wcschr(ip->executable, L' ') != NULL) {
/* has spaces, so quote */
n = wcslen(ip->executable);
memmove(&ip->executable[1],
ip->executable, n * sizeof(wchar_t));
ip->executable[0] = L'\"';
ip->executable[n + 1] = L'\"';
ip->executable[n + 2] = L'\0';
}
debug(L"locate_pythons_for_key: %ls \
is a %dbit executable\n",
ip->executable, ip->bits);
++num_installed_pythons;
pip = ip++;
if (num_installed_pythons >=
MAX_INSTALLED_PYTHONS)
break;
/* Copy over the attributes for the next */
*ip = *pip;
}
}
}
}
int wmain (int argc, WCHAR *argv[])
{
SHELLEXECUTEINFOW sei;
WCHAR *args = NULL;
int i;
int unix_mode = 0;
int progid_open = 0;
WCHAR *dos_filename = NULL;
WCHAR *parent_directory = NULL;
DWORD binary_type;
static const WCHAR openW[] = { 'o', 'p', 'e', 'n', 0 };
static const WCHAR unixW[] = { 'u', 'n', 'i', 'x', 0 };
static const WCHAR progIDOpenW[] =
{ 'p', 'r', 'o', 'g', 'I', 'D', 'O', 'p', 'e', 'n', 0};
memset(&sei, 0, sizeof(sei));
sei.cbSize = sizeof(sei);
sei.lpVerb = openW;
sei.nShow = SW_SHOWNORMAL;
/* Dunno what these mean, but it looks like winMe's start uses them */
sei.fMask = SEE_MASK_FLAG_DDEWAIT|
SEE_MASK_FLAG_NO_UI|
SEE_MASK_NO_CONSOLE;
/* Canonical Microsoft commandline flag processing:
* flags start with /, are case insensitive,
* and may be run together in same word.
*/
for (i=1; i<argc; i++) {
int ci;
if (argv[i][0] != '/')
break;
/* Unix paths can start with / so we have to assume anything following /U is not a flag */
if (unix_mode || progid_open)
break;
/* Handle all options in this word */
for (ci=0; argv[i][ci]; ) {
/* Skip slash */
ci++;
switch(argv[i][ci]) {
case 'b':
case 'B':
break; /* FIXME: should stop new window from being created */
case 'i':
case 'I':
break; /* FIXME: should ignore any changes to current environment */
case 'l':
case 'L':
license();
break; /* notreached */
case 'm':
case 'M':
if (argv[i][ci+1] == 'a' || argv[i][ci+1] == 'A')
sei.nShow = SW_SHOWMAXIMIZED;
else
sei.nShow = SW_SHOWMINIMIZED;
break;
case 'r':
case 'R':
/* sei.nShow = SW_SHOWNORMAL; */
break;
case 'u':
case 'U':
if (strncmpiW(&argv[i][ci], unixW, 4) == 0)
unix_mode = 1;
else {
WINE_ERR("Option '%s' not recognized\n", wine_dbgstr_w( argv[i]+ci-1));
usage();
}
break;
case 'p':
case 'P':
if (strncmpiW(&argv[i][ci], progIDOpenW, 17) == 0)
progid_open = 1;
else {
WINE_ERR("Option '%s' not recognized\n", wine_dbgstr_w( argv[i]+ci-1));
usage();
}
break;
case 'w':
case 'W':
sei.fMask |= SEE_MASK_NOCLOSEPROCESS;
break;
default:
WINE_ERR("Option '%s' not recognized\n", wine_dbgstr_w( argv[i]+ci-1));
usage();
}
/* Skip to next slash */
while (argv[i][ci] && (argv[i][ci] != '/'))
ci++;
}
}
if (i == argc)
usage();
if (progid_open) {
sei.lpClass = argv[i++];
sei.fMask |= SEE_MASK_CLASSNAME;
}
sei.lpFile = argv[i++];
args = build_args( argc - i, &argv[i] );
sei.lpParameters = args;
if (unix_mode || progid_open) {
LPWSTR (*CDECL wine_get_dos_file_name_ptr)(LPCSTR);
char* multibyte_unixpath;
int multibyte_unixpath_len;
wine_get_dos_file_name_ptr = (void*)GetProcAddress(GetModuleHandleA("KERNEL32"), "wine_get_dos_file_name");
if (!wine_get_dos_file_name_ptr)
fatal_string(STRING_UNIXFAIL);
multibyte_unixpath_len = WideCharToMultiByte(CP_UNIXCP, 0, sei.lpFile, -1, NULL, 0, NULL, NULL);
multibyte_unixpath = HeapAlloc(GetProcessHeap(), 0, multibyte_unixpath_len);
WideCharToMultiByte(CP_UNIXCP, 0, sei.lpFile, -1, multibyte_unixpath, multibyte_unixpath_len, NULL, NULL);
dos_filename = wine_get_dos_file_name_ptr(multibyte_unixpath);
HeapFree(GetProcessHeap(), 0, multibyte_unixpath);
if (!dos_filename)
fatal_string(STRING_UNIXFAIL);
sei.lpFile = dos_filename;
sei.lpDirectory = parent_directory = get_parent_dir(dos_filename);
sei.fMask &= ~SEE_MASK_FLAG_NO_UI;
if (GetBinaryTypeW(sei.lpFile, &binary_type)) {
WCHAR *commandline;
STARTUPINFOW startup_info;
PROCESS_INFORMATION process_information;
static WCHAR commandlineformat[] = {'"','%','s','"','%','s',0};
/* explorer on windows always quotes the filename when running a binary on windows (see bug 5224) so we have to use CreateProcessW in this case */
commandline = HeapAlloc(GetProcessHeap(), 0, (strlenW(sei.lpFile)+3+strlenW(sei.lpParameters))*sizeof(WCHAR));
sprintfW(commandline, commandlineformat, sei.lpFile, sei.lpParameters);
ZeroMemory(&startup_info, sizeof(startup_info));
startup_info.cb = sizeof(startup_info);
if (!CreateProcessW(
NULL, /* lpApplicationName */
commandline, /* lpCommandLine */
NULL, /* lpProcessAttributes */
NULL, /* lpThreadAttributes */
FALSE, /* bInheritHandles */
CREATE_NEW_CONSOLE, /* dwCreationFlags */
NULL, /* lpEnvironment */
sei.lpDirectory, /* lpCurrentDirectory */
&startup_info, /* lpStartupInfo */
&process_information /* lpProcessInformation */ ))
{
fatal_string_error(STRING_EXECFAIL, GetLastError(), sei.lpFile);
}
sei.hProcess = process_information.hProcess;
goto done;
}
}
if (!ShellExecuteExW(&sei))
fatal_string_error(STRING_EXECFAIL, GetLastError(), sei.lpFile);
done:
HeapFree( GetProcessHeap(), 0, args );
HeapFree( GetProcessHeap(), 0, dos_filename );
HeapFree( GetProcessHeap(), 0, parent_directory );
if (sei.fMask & SEE_MASK_NOCLOSEPROCESS) {
DWORD exitcode;
WaitForSingleObject(sei.hProcess, INFINITE);
GetExitCodeProcess(sei.hProcess, &exitcode);
ExitProcess(exitcode);
}
ExitProcess(0);
}
static BOOL
AutoStartupApplications(INT nCSIDL_Folder)
{
WCHAR szPath[MAX_PATH] = { 0 };
HRESULT hResult;
HANDLE hFind;
WIN32_FIND_DATAW FoundData;
size_t cchPathLen;
TRACE("(%d)\n", nCSIDL_Folder);
// Get the special folder path
hResult = SHGetFolderPathW(NULL, nCSIDL_Folder, NULL, SHGFP_TYPE_CURRENT, szPath);
cchPathLen = wcslen(szPath);
if (!SUCCEEDED(hResult) || cchPathLen == 0)
{
WARN("SHGetFolderPath() failed with error %lu\n", GetLastError());
return FALSE;
}
// Build a path with wildcard
StringCbCatW(szPath, sizeof(szPath), L"\\*");
// Start enumeration of files
hFind = FindFirstFileW(szPath, &FoundData);
if (hFind == INVALID_HANDLE_VALUE)
{
WARN("FindFirstFile(%s) failed with error %lu\n", debugstr_w(szPath), GetLastError());
return FALSE;
}
// Enumerate the files
do
{
// Ignore "." and ".."
if (wcscmp(FoundData.cFileName, L".") == 0 ||
wcscmp(FoundData.cFileName, L"..") == 0)
{
continue;
}
// Don't run hidden files
if (FoundData.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN)
continue;
// Build the path
szPath[cchPathLen + 1] = UNICODE_NULL;
StringCbCatW(szPath, sizeof(szPath), FoundData.cFileName);
TRACE("Executing %s in directory %s\n", debugstr_w(FoundData.cFileName), debugstr_w(szPath));
DWORD dwType;
if (GetBinaryTypeW(szPath, &dwType))
{
runCmd(szPath, NULL, TRUE, FALSE);
}
else
{
SHELLEXECUTEINFOW ExecInfo;
ZeroMemory(&ExecInfo, sizeof(ExecInfo));
ExecInfo.cbSize = sizeof(ExecInfo);
ExecInfo.lpFile = szPath;
ShellExecuteExW(&ExecInfo);
}
} while (FindNextFileW(hFind, &FoundData));
FindClose(hFind);
return TRUE;
}
//
// Tries to call where.exe to find the location of dotnet.exe.
// Will check that the bitness of dotnet matches the current
// worker process bitness.
// Returns true if a valid dotnet was found, else false.R
//
std::optional<fs::path>
HOSTFXR_UTILITY::InvokeWhereToFindDotnet()
{
HRESULT hr = S_OK;
// Arguments to call where.exe
STARTUPINFOW startupInfo = { 0 };
PROCESS_INFORMATION processInformation = { 0 };
SECURITY_ATTRIBUTES securityAttributes;
CHAR pzFileContents[READ_BUFFER_SIZE];
HandleWrapper<InvalidHandleTraits> hStdOutReadPipe;
HandleWrapper<InvalidHandleTraits> hStdOutWritePipe;
HandleWrapper<InvalidHandleTraits> hProcess;
HandleWrapper<InvalidHandleTraits> hThread;
CComBSTR pwzDotnetName = NULL;
DWORD dwFilePointer;
BOOL fIsWow64Process;
BOOL fIsCurrentProcess64Bit;
DWORD dwExitCode;
STRU struDotnetSubstring;
STRU struDotnetLocationsString;
DWORD dwNumBytesRead;
DWORD dwBinaryType;
INT index = 0;
INT prevIndex = 0;
std::optional<fs::path> result;
// Set the security attributes for the read/write pipe
securityAttributes.nLength = sizeof(securityAttributes);
securityAttributes.lpSecurityDescriptor = NULL;
securityAttributes.bInheritHandle = TRUE;
LOG_INFO(L"Invoking where.exe to find dotnet.exe");
// Create a read/write pipe that will be used for reading the result of where.exe
FINISHED_LAST_ERROR_IF(!CreatePipe(&hStdOutReadPipe, &hStdOutWritePipe, &securityAttributes, 0));
FINISHED_LAST_ERROR_IF(!SetHandleInformation(hStdOutReadPipe, HANDLE_FLAG_INHERIT, 0));
// Set the stdout and err pipe to the write pipes.
startupInfo.cb = sizeof(startupInfo);
startupInfo.dwFlags |= STARTF_USESTDHANDLES;
startupInfo.hStdOutput = hStdOutWritePipe;
startupInfo.hStdError = hStdOutWritePipe;
// CreateProcess requires a mutable string to be passed to commandline
// See https://blogs.msdn.microsoft.com/oldnewthing/20090601-00/?p=18083/
pwzDotnetName = L"\"where.exe\" dotnet.exe";
// Create a process to invoke where.exe
FINISHED_LAST_ERROR_IF(!CreateProcessW(NULL,
pwzDotnetName,
NULL,
NULL,
TRUE,
CREATE_NO_WINDOW,
NULL,
NULL,
&startupInfo,
&processInformation
));
// Store handles into wrapper so they get closed automatically
hProcess = processInformation.hProcess;
hThread = processInformation.hThread;
// Wait for where.exe to return
WaitForSingleObject(processInformation.hProcess, INFINITE);
//
// where.exe will return 0 on success, 1 if the file is not found
// and 2 if there was an error. Check if the exit code is 1 and set
// a new hr result saying it couldn't find dotnet.exe
//
FINISHED_LAST_ERROR_IF (!GetExitCodeProcess(processInformation.hProcess, &dwExitCode));
//
// In this block, if anything fails, we will goto our fallback of
// looking in C:/Program Files/
//
if (dwExitCode != 0)
{
FINISHED_IF_FAILED(E_FAIL);
}
// Where succeeded.
// Reset file pointer to the beginning of the file.
dwFilePointer = SetFilePointer(hStdOutReadPipe, 0, NULL, FILE_BEGIN);
if (dwFilePointer == INVALID_SET_FILE_POINTER)
{
FINISHED_IF_FAILED(E_FAIL);
}
//
// As the call to where.exe succeeded (dotnet.exe was found), ReadFile should not hang.
// TODO consider putting ReadFile in a separate thread with a timeout to guarantee it doesn't block.
//
FINISHED_LAST_ERROR_IF (!ReadFile(hStdOutReadPipe, pzFileContents, READ_BUFFER_SIZE, &dwNumBytesRead, NULL));
if (dwNumBytesRead >= READ_BUFFER_SIZE)
{
// This shouldn't ever be this large. We could continue to call ReadFile in a loop,
// however if someone had this many dotnet.exes on their machine.
FINISHED_IF_FAILED(E_FAIL);
}
FINISHED_IF_FAILED(struDotnetLocationsString.CopyA(pzFileContents, dwNumBytesRead));
LOG_INFOF(L"where.exe invocation returned: '%ls'", struDotnetLocationsString.QueryStr());
// Check the bitness of the currently running process
// matches the dotnet.exe found.
FINISHED_LAST_ERROR_IF (!IsWow64Process(GetCurrentProcess(), &fIsWow64Process));
if (fIsWow64Process)
{
// 32 bit mode
fIsCurrentProcess64Bit = FALSE;
}
else
{
// Check the SystemInfo to see if we are currently 32 or 64 bit.
SYSTEM_INFO systemInfo;
GetNativeSystemInfo(&systemInfo);
fIsCurrentProcess64Bit = systemInfo.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64;
}
LOG_INFOF(L"Current process bitness type detected as isX64=%d", fIsCurrentProcess64Bit);
while (TRUE)
{
index = struDotnetLocationsString.IndexOf(L"\r\n", prevIndex);
if (index == -1)
{
break;
}
FINISHED_IF_FAILED(struDotnetSubstring.Copy(&struDotnetLocationsString.QueryStr()[prevIndex], index - prevIndex));
// \r\n is two wchars, so add 2 here.
prevIndex = index + 2;
LOG_INFOF(L"Processing entry '%ls'", struDotnetSubstring.QueryStr());
if (LOG_LAST_ERROR_IF(!GetBinaryTypeW(struDotnetSubstring.QueryStr(), &dwBinaryType)))
{
continue;
}
LOG_INFOF(L"Binary type %d", dwBinaryType);
if (fIsCurrentProcess64Bit == (dwBinaryType == SCS_64BIT_BINARY))
{
// The bitness of dotnet matched with the current worker process bitness.
return std::make_optional(struDotnetSubstring.QueryStr());
}
}
Finished:
return result;
}
