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Diffstat (limited to 'vendor/libloading/src/os/windows/mod.rs')
| -rw-r--r-- | vendor/libloading/src/os/windows/mod.rs | 534 |
1 files changed, 534 insertions, 0 deletions
diff --git a/vendor/libloading/src/os/windows/mod.rs b/vendor/libloading/src/os/windows/mod.rs new file mode 100644 index 000000000..eadeb6980 --- /dev/null +++ b/vendor/libloading/src/os/windows/mod.rs @@ -0,0 +1,534 @@ +// A hack for docs.rs to build documentation that has both windows and linux documentation in the +// same rustdoc build visible. +#[cfg(all(libloading_docs, not(windows)))] +mod windows_imports { + pub(super) enum WORD {} + pub(super) struct DWORD; + pub(super) enum HMODULE {} + pub(super) enum FARPROC {} + + pub(super) mod consts { + use super::DWORD; + pub(crate) const LOAD_IGNORE_CODE_AUTHZ_LEVEL: DWORD = DWORD; + pub(crate) const LOAD_LIBRARY_AS_DATAFILE: DWORD = DWORD; + pub(crate) const LOAD_LIBRARY_AS_DATAFILE_EXCLUSIVE: DWORD = DWORD; + pub(crate) const LOAD_LIBRARY_AS_IMAGE_RESOURCE: DWORD = DWORD; + pub(crate) const LOAD_LIBRARY_SEARCH_APPLICATION_DIR: DWORD = DWORD; + pub(crate) const LOAD_LIBRARY_SEARCH_DEFAULT_DIRS: DWORD = DWORD; + pub(crate) const LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR: DWORD = DWORD; + pub(crate) const LOAD_LIBRARY_SEARCH_SYSTEM32: DWORD = DWORD; + pub(crate) const LOAD_LIBRARY_SEARCH_USER_DIRS: DWORD = DWORD; + pub(crate) const LOAD_WITH_ALTERED_SEARCH_PATH: DWORD = DWORD; + pub(crate) const LOAD_LIBRARY_REQUIRE_SIGNED_TARGET: DWORD = DWORD; + pub(crate) const LOAD_LIBRARY_SAFE_CURRENT_DIRS: DWORD = DWORD; + } +} +#[cfg(any(not(libloading_docs), windows))] +mod windows_imports { + extern crate winapi; + pub(super) use self::winapi::shared::minwindef::{WORD, DWORD, HMODULE, FARPROC}; + pub(super) use self::winapi::shared::ntdef::WCHAR; + pub(super) use self::winapi::um::{errhandlingapi, libloaderapi}; + pub(super) use std::os::windows::ffi::{OsStrExt, OsStringExt}; + pub(super) const SEM_FAILCE: DWORD = 1; + + pub(super) mod consts { + pub(crate) use super::winapi::um::libloaderapi::{ + LOAD_IGNORE_CODE_AUTHZ_LEVEL, + LOAD_LIBRARY_AS_DATAFILE, + LOAD_LIBRARY_AS_DATAFILE_EXCLUSIVE, + LOAD_LIBRARY_AS_IMAGE_RESOURCE, + LOAD_LIBRARY_SEARCH_APPLICATION_DIR, + LOAD_LIBRARY_SEARCH_DEFAULT_DIRS, + LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR, + LOAD_LIBRARY_SEARCH_SYSTEM32, + LOAD_LIBRARY_SEARCH_USER_DIRS, + LOAD_WITH_ALTERED_SEARCH_PATH, + LOAD_LIBRARY_REQUIRE_SIGNED_TARGET, + LOAD_LIBRARY_SAFE_CURRENT_DIRS, + }; + } +} + +use self::windows_imports::*; +use util::{ensure_compatible_types, cstr_cow_from_bytes}; +use std::ffi::{OsStr, OsString}; +use std::{fmt, io, marker, mem, ptr}; + +/// The platform-specific counterpart of the cross-platform [`Library`](crate::Library). +pub struct Library(HMODULE); + +unsafe impl Send for Library {} +// Now, this is sort-of-tricky. MSDN documentation does not really make any claims as to safety of +// the Win32 APIs. Sadly, whomever I asked, even current and former Microsoft employees, couldn’t +// say for sure whether the Win32 APIs used to implement `Library` are thread-safe or not. +// +// My investigation ended up with a question about thread-safety properties of the API involved +// being sent to an internal (to MS) general question mailing-list. The conclusion of the mail is +// as such: +// +// * Nobody inside MS (at least out of all of the people who have seen the question) knows for +// sure either; +// * However, the general consensus between MS developers is that one can rely on the API being +// thread-safe. In case it is not thread-safe it should be considered a bug on the Windows +// part. (NB: bugs filed at https://connect.microsoft.com/ against Windows Server) +unsafe impl Sync for Library {} + +impl Library { + /// Find and load a module. + /// + /// If the `filename` specifies a full path, the function only searches that path for the + /// module. Otherwise, if the `filename` specifies a relative path or a module name without a + /// path, the function uses a Windows-specific search strategy to find the module. For more + /// information, see the [Remarks on MSDN][msdn]. + /// + /// If the `filename` specifies a library filename without a path and with the extension omitted, + /// the `.dll` extension is implicitly added. This behaviour may be suppressed by appending a + /// trailing `.` to the `filename`. + /// + /// This is equivalent to <code>[Library::load_with_flags](filename, 0)</code>. + /// + /// [msdn]: https://docs.microsoft.com/en-us/windows/win32/api/libloaderapi/nf-libloaderapi-loadlibraryw#remarks + /// + /// # Safety + /// + /// When a library is loaded, initialisation routines contained within the library are executed. + /// For the purposes of safety, the execution of these routines is conceptually the same calling an + /// unknown foreign function and may impose arbitrary requirements on the caller for the call + /// to be sound. + /// + /// Additionally, the callers of this function must also ensure that execution of the + /// termination routines contained within the library is safe as well. These routines may be + /// executed when the library is unloaded. + #[inline] + pub unsafe fn new<P: AsRef<OsStr>>(filename: P) -> Result<Library, crate::Error> { + Library::load_with_flags(filename, 0) + } + + /// Get the `Library` representing the original program executable. + /// + /// Note that the behaviour of the `Library` loaded with this method is different from + /// Libraries loaded with [`os::unix::Library::this`]. For more information refer to [MSDN]. + /// + /// Corresponds to `GetModuleHandleExW(0, NULL, _)`. + /// + /// [`os::unix::Library::this`]: crate::os::unix::Library::this + /// [MSDN]: https://docs.microsoft.com/en-us/windows/win32/api/libloaderapi/nf-libloaderapi-getmodulehandleexw + pub fn this() -> Result<Library, crate::Error> { + unsafe { + let mut handle: HMODULE = std::ptr::null_mut(); + with_get_last_error(|source| crate::Error::GetModuleHandleExW { source }, || { + let result = libloaderapi::GetModuleHandleExW(0, std::ptr::null_mut(), &mut handle); + if result == 0 { + None + } else { + Some(Library(handle)) + } + }).map_err(|e| e.unwrap_or(crate::Error::GetModuleHandleExWUnknown)) + } + } + + /// Get a module that is already loaded by the program. + /// + /// This function returns a `Library` corresponding to a module with the given name that is + /// already mapped into the address space of the process. If the module isn't found, an error is + /// returned. + /// + /// If the `filename` does not include a full path and there are multiple different loaded + /// modules corresponding to the `filename`, it is impossible to predict which module handle + /// will be returned. For more information refer to [MSDN]. + /// + /// If the `filename` specifies a library filename without a path and with the extension omitted, + /// the `.dll` extension is implicitly added. This behaviour may be suppressed by appending a + /// trailing `.` to the `filename`. + /// + /// This is equivalent to `GetModuleHandleExW(0, filename, _)`. + /// + /// [MSDN]: https://docs.microsoft.com/en-us/windows/win32/api/libloaderapi/nf-libloaderapi-getmodulehandleexw + pub fn open_already_loaded<P: AsRef<OsStr>>(filename: P) -> Result<Library, crate::Error> { + let wide_filename: Vec<u16> = filename.as_ref().encode_wide().chain(Some(0)).collect(); + + let ret = unsafe { + let mut handle: HMODULE = std::ptr::null_mut(); + with_get_last_error(|source| crate::Error::GetModuleHandleExW { source }, || { + // Make sure no winapi calls as a result of drop happen inside this closure, because + // otherwise that might change the return value of the GetLastError. + let result = libloaderapi::GetModuleHandleExW(0, wide_filename.as_ptr(), &mut handle); + if result == 0 { + None + } else { + Some(Library(handle)) + } + }).map_err(|e| e.unwrap_or(crate::Error::GetModuleHandleExWUnknown)) + }; + + drop(wide_filename); // Drop wide_filename here to ensure it doesn’t get moved and dropped + // inside the closure by mistake. See comment inside the closure. + ret + } + + /// Find and load a module, additionally adjusting behaviour with flags. + /// + /// See [`Library::new`] for documentation on the handling of the `filename` argument. See the + /// [flag table on MSDN][flags] for information on applicable values for the `flags` argument. + /// + /// Corresponds to `LoadLibraryExW(filename, reserved: NULL, flags)`. + /// + /// [flags]: https://docs.microsoft.com/en-us/windows/win32/api/libloaderapi/nf-libloaderapi-loadlibraryexw#parameters + /// + /// # Safety + /// + /// When a library is loaded, initialisation routines contained within the library are executed. + /// For the purposes of safety, the execution of these routines is conceptually the same calling an + /// unknown foreign function and may impose arbitrary requirements on the caller for the call + /// to be sound. + /// + /// Additionally, the callers of this function must also ensure that execution of the + /// termination routines contained within the library is safe as well. These routines may be + /// executed when the library is unloaded. + pub unsafe fn load_with_flags<P: AsRef<OsStr>>(filename: P, flags: DWORD) -> Result<Library, crate::Error> { + let wide_filename: Vec<u16> = filename.as_ref().encode_wide().chain(Some(0)).collect(); + let _guard = ErrorModeGuard::new(); + + let ret = with_get_last_error(|source| crate::Error::LoadLibraryExW { source }, || { + // Make sure no winapi calls as a result of drop happen inside this closure, because + // otherwise that might change the return value of the GetLastError. + let handle = + libloaderapi::LoadLibraryExW(wide_filename.as_ptr(), std::ptr::null_mut(), flags); + if handle.is_null() { + None + } else { + Some(Library(handle)) + } + }).map_err(|e| e.unwrap_or(crate::Error::LoadLibraryExWUnknown)); + drop(wide_filename); // Drop wide_filename here to ensure it doesn’t get moved and dropped + // inside the closure by mistake. See comment inside the closure. + ret + } + + /// Get a pointer to a function or static variable by symbol name. + /// + /// The `symbol` may not contain any null bytes, with the exception of the last byte. A null + /// terminated `symbol` may avoid a string allocation in some cases. + /// + /// Symbol is interpreted as-is; no mangling is done. This means that symbols like `x::y` are + /// most likely invalid. + /// + /// # Safety + /// + /// Users of this API must specify the correct type of the function or variable loaded. + pub unsafe fn get<T>(&self, symbol: &[u8]) -> Result<Symbol<T>, crate::Error> { + ensure_compatible_types::<T, FARPROC>()?; + let symbol = cstr_cow_from_bytes(symbol)?; + with_get_last_error(|source| crate::Error::GetProcAddress { source }, || { + let symbol = libloaderapi::GetProcAddress(self.0, symbol.as_ptr()); + if symbol.is_null() { + None + } else { + Some(Symbol { + pointer: symbol, + pd: marker::PhantomData + }) + } + }).map_err(|e| e.unwrap_or(crate::Error::GetProcAddressUnknown)) + } + + /// Get a pointer to a function or static variable by ordinal number. + /// + /// # Safety + /// + /// Users of this API must specify the correct type of the function or variable loaded. + pub unsafe fn get_ordinal<T>(&self, ordinal: WORD) -> Result<Symbol<T>, crate::Error> { + ensure_compatible_types::<T, FARPROC>()?; + with_get_last_error(|source| crate::Error::GetProcAddress { source }, || { + let ordinal = ordinal as usize as *mut _; + let symbol = libloaderapi::GetProcAddress(self.0, ordinal); + if symbol.is_null() { + None + } else { + Some(Symbol { + pointer: symbol, + pd: marker::PhantomData + }) + } + }).map_err(|e| e.unwrap_or(crate::Error::GetProcAddressUnknown)) + } + + /// Convert the `Library` to a raw handle. + pub fn into_raw(self) -> HMODULE { + let handle = self.0; + mem::forget(self); + handle + } + + /// Convert a raw handle to a `Library`. + /// + /// # Safety + /// + /// The handle must be the result of a successful call of `LoadLibraryA`, `LoadLibraryW`, + /// `LoadLibraryExW`, or `LoadLibraryExA`, or a handle previously returned by the + /// `Library::into_raw` call. + pub unsafe fn from_raw(handle: HMODULE) -> Library { + Library(handle) + } + + /// Unload the library. + /// + /// You only need to call this if you are interested in handling any errors that may arise when + /// library is unloaded. Otherwise this will be done when `Library` is dropped. + /// + /// The underlying data structures may still get leaked if an error does occur. + pub fn close(self) -> Result<(), crate::Error> { + let result = with_get_last_error(|source| crate::Error::FreeLibrary { source }, || { + if unsafe { libloaderapi::FreeLibrary(self.0) == 0 } { + None + } else { + Some(()) + } + }).map_err(|e| e.unwrap_or(crate::Error::FreeLibraryUnknown)); + // While the library is not free'd yet in case of an error, there is no reason to try + // dropping it again, because all that will do is try calling `FreeLibrary` again. only + // this time it would ignore the return result, which we already seen failing... + std::mem::forget(self); + result + } +} + +impl Drop for Library { + fn drop(&mut self) { + unsafe { libloaderapi::FreeLibrary(self.0); } + } +} + +impl fmt::Debug for Library { + fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + unsafe { + // FIXME: use Maybeuninit::uninit_array when stable + let mut buf = + mem::MaybeUninit::<[mem::MaybeUninit::<WCHAR>; 1024]>::uninit().assume_init(); + let len = libloaderapi::GetModuleFileNameW(self.0, + (&mut buf[..]).as_mut_ptr().cast(), 1024) as usize; + if len == 0 { + f.write_str(&format!("Library@{:p}", self.0)) + } else { + let string: OsString = OsString::from_wide( + // FIXME: use Maybeuninit::slice_get_ref when stable + &*(&buf[..len] as *const [_] as *const [WCHAR]) + ); + f.write_str(&format!("Library@{:p} from {:?}", self.0, string)) + } + } + } +} + +/// A symbol from a library. +/// +/// A major difference compared to the cross-platform `Symbol` is that this does not ensure that the +/// `Symbol` does not outlive the `Library` that it comes from. +pub struct Symbol<T> { + pointer: FARPROC, + pd: marker::PhantomData<T> +} + +impl<T> Symbol<T> { + /// Convert the loaded `Symbol` into a handle. + pub fn into_raw(self) -> FARPROC { + let pointer = self.pointer; + mem::forget(self); + pointer + } +} + +impl<T> Symbol<Option<T>> { + /// Lift Option out of the symbol. + pub fn lift_option(self) -> Option<Symbol<T>> { + if self.pointer.is_null() { + None + } else { + Some(Symbol { + pointer: self.pointer, + pd: marker::PhantomData, + }) + } + } +} + +unsafe impl<T: Send> Send for Symbol<T> {} +unsafe impl<T: Sync> Sync for Symbol<T> {} + +impl<T> Clone for Symbol<T> { + fn clone(&self) -> Symbol<T> { + Symbol { ..*self } + } +} + +impl<T> ::std::ops::Deref for Symbol<T> { + type Target = T; + fn deref(&self) -> &T { + unsafe { + // Additional reference level for a dereference on `deref` return value. + &*(&self.pointer as *const *mut _ as *const T) + } + } +} + +impl<T> fmt::Debug for Symbol<T> { + fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + f.write_str(&format!("Symbol@{:p}", self.pointer)) + } +} + +struct ErrorModeGuard(DWORD); + +impl ErrorModeGuard { + #[allow(clippy::if_same_then_else)] + fn new() -> Option<ErrorModeGuard> { + unsafe { + let mut previous_mode = 0; + if errhandlingapi::SetThreadErrorMode(SEM_FAILCE, &mut previous_mode) == 0 { + // How in the world is it possible for what is essentially a simple variable swap + // to fail? For now we just ignore the error -- the worst that can happen here is + // the previous mode staying on and user seeing a dialog error on older Windows + // machines. + None + } else if previous_mode == SEM_FAILCE { + None + } else { + Some(ErrorModeGuard(previous_mode)) + } + } + } +} + +impl Drop for ErrorModeGuard { + fn drop(&mut self) { + unsafe { + errhandlingapi::SetThreadErrorMode(self.0, ptr::null_mut()); + } + } +} + +fn with_get_last_error<T, F>(wrap: fn(crate::error::WindowsError) -> crate::Error, closure: F) +-> Result<T, Option<crate::Error>> +where F: FnOnce() -> Option<T> { + closure().ok_or_else(|| { + let error = unsafe { errhandlingapi::GetLastError() }; + if error == 0 { + None + } else { + Some(wrap(crate::error::WindowsError(io::Error::from_raw_os_error(error as i32)))) + } + }) +} + +/// Do not check AppLocker rules or apply Software Restriction Policies for the DLL. +/// +/// This action applies only to the DLL being loaded and not to its dependencies. This value is +/// recommended for use in setup programs that must run extracted DLLs during installation. +/// +/// See [flag documentation on MSDN](https://docs.microsoft.com/en-us/windows/win32/api/libloaderapi/nf-libloaderapi-loadlibraryexw#parameters). +pub const LOAD_IGNORE_CODE_AUTHZ_LEVEL: DWORD = consts::LOAD_IGNORE_CODE_AUTHZ_LEVEL; + +/// Map the file into the calling process’ virtual address space as if it were a data file. +/// +/// Nothing is done to execute or prepare to execute the mapped file. Therefore, you cannot call +/// functions like [`Library::get`] with this DLL. Using this value causes writes to read-only +/// memory to raise an access violation. Use this flag when you want to load a DLL only to extract +/// messages or resources from it. +/// +/// See [flag documentation on MSDN](https://docs.microsoft.com/en-us/windows/win32/api/libloaderapi/nf-libloaderapi-loadlibraryexw#parameters). +pub const LOAD_LIBRARY_AS_DATAFILE: DWORD = consts::LOAD_LIBRARY_AS_DATAFILE; + +/// Map the file into the calling process’ virtual address space as if it were a data file. +/// +/// Similar to [`LOAD_LIBRARY_AS_DATAFILE`], except that the DLL file is opened with exclusive +/// write access for the calling process. Other processes cannot open the DLL file for write access +/// while it is in use. However, the DLL can still be opened by other processes. +/// +/// See [flag documentation on MSDN](https://docs.microsoft.com/en-us/windows/win32/api/libloaderapi/nf-libloaderapi-loadlibraryexw#parameters). +pub const LOAD_LIBRARY_AS_DATAFILE_EXCLUSIVE: DWORD = consts::LOAD_LIBRARY_AS_DATAFILE_EXCLUSIVE; + +/// Map the file into the process’ virtual address space as an image file. +/// +/// The loader does not load the static imports or perform the other usual initialisation steps. +/// Use this flag when you want to load a DLL only to extract messages or resources from it. +/// +/// Unless the application depends on the file having the in-memory layout of an image, this value +/// should be used with either [`LOAD_LIBRARY_AS_DATAFILE_EXCLUSIVE`] or +/// [`LOAD_LIBRARY_AS_DATAFILE`]. +/// +/// See [flag documentation on MSDN](https://docs.microsoft.com/en-us/windows/win32/api/libloaderapi/nf-libloaderapi-loadlibraryexw#parameters). +pub const LOAD_LIBRARY_AS_IMAGE_RESOURCE: DWORD = consts::LOAD_LIBRARY_AS_IMAGE_RESOURCE; + +/// Search the application's installation directory for the DLL and its dependencies. +/// +/// Directories in the standard search path are not searched. This value cannot be combined with +/// [`LOAD_WITH_ALTERED_SEARCH_PATH`]. +/// +/// See [flag documentation on MSDN](https://docs.microsoft.com/en-us/windows/win32/api/libloaderapi/nf-libloaderapi-loadlibraryexw#parameters). +pub const LOAD_LIBRARY_SEARCH_APPLICATION_DIR: DWORD = consts::LOAD_LIBRARY_SEARCH_APPLICATION_DIR; + +/// Search default directories when looking for the DLL and its dependencies. +/// +/// This value is a combination of [`LOAD_LIBRARY_SEARCH_APPLICATION_DIR`], +/// [`LOAD_LIBRARY_SEARCH_SYSTEM32`], and [`LOAD_LIBRARY_SEARCH_USER_DIRS`]. Directories in the +/// standard search path are not searched. This value cannot be combined with +/// [`LOAD_WITH_ALTERED_SEARCH_PATH`]. +/// +/// See [flag documentation on MSDN](https://docs.microsoft.com/en-us/windows/win32/api/libloaderapi/nf-libloaderapi-loadlibraryexw#parameters). +pub const LOAD_LIBRARY_SEARCH_DEFAULT_DIRS: DWORD = consts::LOAD_LIBRARY_SEARCH_DEFAULT_DIRS; + +/// Directory that contains the DLL is temporarily added to the beginning of the list of +/// directories that are searched for the DLL’s dependencies. +/// +/// Directories in the standard search path are not searched. +/// +/// The `filename` parameter must specify a fully qualified path. This value cannot be combined +/// with [`LOAD_WITH_ALTERED_SEARCH_PATH`]. +/// +/// See [flag documentation on MSDN](https://docs.microsoft.com/en-us/windows/win32/api/libloaderapi/nf-libloaderapi-loadlibraryexw#parameters). +pub const LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR: DWORD = consts::LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR; + +/// Search `%windows%\system32` for the DLL and its dependencies. +/// +/// Directories in the standard search path are not searched. This value cannot be combined with +/// [`LOAD_WITH_ALTERED_SEARCH_PATH`]. +/// +/// See [flag documentation on MSDN](https://docs.microsoft.com/en-us/windows/win32/api/libloaderapi/nf-libloaderapi-loadlibraryexw#parameters). +pub const LOAD_LIBRARY_SEARCH_SYSTEM32: DWORD = consts::LOAD_LIBRARY_SEARCH_SYSTEM32; + +/// Directories added using the `AddDllDirectory` or the `SetDllDirectory` function are searched +/// for the DLL and its dependencies. +/// +/// If more than one directory has been added, the order in which the directories are searched is +/// unspecified. Directories in the standard search path are not searched. This value cannot be +/// combined with [`LOAD_WITH_ALTERED_SEARCH_PATH`]. +/// +/// See [flag documentation on MSDN](https://docs.microsoft.com/en-us/windows/win32/api/libloaderapi/nf-libloaderapi-loadlibraryexw#parameters). +pub const LOAD_LIBRARY_SEARCH_USER_DIRS: DWORD = consts::LOAD_LIBRARY_SEARCH_USER_DIRS; + +/// If `filename` specifies an absolute path, the system uses the alternate file search strategy +/// discussed in the [Remarks section] to find associated executable modules that the specified +/// module causes to be loaded. +/// +/// If this value is used and `filename` specifies a relative path, the behaviour is undefined. +/// +/// If this value is not used, or if `filename` does not specify a path, the system uses the +/// standard search strategy discussed in the [Remarks section] to find associated executable +/// modules that the specified module causes to be loaded. +/// +/// See [flag documentation on MSDN](https://docs.microsoft.com/en-us/windows/win32/api/libloaderapi/nf-libloaderapi-loadlibraryexw#parameters). +/// +/// [Remarks]: https://docs.microsoft.com/en-us/windows/win32/api/libloaderapi/nf-libloaderapi-loadlibraryexw#remarks +pub const LOAD_WITH_ALTERED_SEARCH_PATH: DWORD = consts::LOAD_WITH_ALTERED_SEARCH_PATH; + +/// Specifies that the digital signature of the binary image must be checked at load time. +/// +/// See [flag documentation on MSDN](https://docs.microsoft.com/en-us/windows/win32/api/libloaderapi/nf-libloaderapi-loadlibraryexw#parameters). +pub const LOAD_LIBRARY_REQUIRE_SIGNED_TARGET: DWORD = consts::LOAD_LIBRARY_REQUIRE_SIGNED_TARGET; + +/// Allow loading a DLL for execution from the current directory only if it is under a directory in +/// the Safe load list. +/// +/// See [flag documentation on MSDN](https://docs.microsoft.com/en-us/windows/win32/api/libloaderapi/nf-libloaderapi-loadlibraryexw#parameters). +pub const LOAD_LIBRARY_SAFE_CURRENT_DIRS: DWORD = consts::LOAD_LIBRARY_SAFE_CURRENT_DIRS; |