/
c.rs
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/
c.rs
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// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//! C definitions used by libnative that don't belong in liblibc
#![allow(bad_style, dead_code, overflowing_literals)]
use libc;
pub use self::GET_FILEEX_INFO_LEVELS::*;
pub use self::FILE_INFO_BY_HANDLE_CLASS::*;
pub use libc::consts::os::extra::{
FILE_ATTRIBUTE_READONLY,
FILE_ATTRIBUTE_DIRECTORY,
WSAPROTOCOL_LEN,
};
pub use libc::types::os::arch::extra::{GROUP, GUID, WSAPROTOCOLCHAIN};
pub const WSADESCRIPTION_LEN: usize = 256;
pub const WSASYS_STATUS_LEN: usize = 128;
pub const FIONBIO: libc::c_long = 0x8004667e;
pub const FD_SETSIZE: usize = 64;
pub const MSG_DONTWAIT: libc::c_int = 0;
pub const ERROR_ILLEGAL_CHARACTER: libc::c_int = 582;
pub const ENABLE_ECHO_INPUT: libc::DWORD = 0x4;
pub const ENABLE_EXTENDED_FLAGS: libc::DWORD = 0x80;
pub const ENABLE_INSERT_MODE: libc::DWORD = 0x20;
pub const ENABLE_LINE_INPUT: libc::DWORD = 0x2;
pub const ENABLE_PROCESSED_INPUT: libc::DWORD = 0x1;
pub const ENABLE_QUICK_EDIT_MODE: libc::DWORD = 0x40;
pub const WSA_INVALID_EVENT: WSAEVENT = 0 as WSAEVENT;
pub const FD_ACCEPT: libc::c_long = 0x08;
pub const FD_MAX_EVENTS: usize = 10;
pub const WSA_INFINITE: libc::DWORD = libc::INFINITE;
pub const WSA_WAIT_TIMEOUT: libc::DWORD = libc::consts::os::extra::WAIT_TIMEOUT;
pub const WSA_WAIT_EVENT_0: libc::DWORD = libc::consts::os::extra::WAIT_OBJECT_0;
pub const WSA_WAIT_FAILED: libc::DWORD = libc::consts::os::extra::WAIT_FAILED;
pub const WSAESHUTDOWN: libc::c_int = 10058;
pub const WSA_FLAG_OVERLAPPED: libc::DWORD = 0x01;
pub const WSA_FLAG_NO_HANDLE_INHERIT: libc::DWORD = 0x80;
pub const ERROR_NO_MORE_FILES: libc::DWORD = 18;
pub const TOKEN_READ: libc::DWORD = 0x20008;
// Note that these are not actually HANDLEs, just values to pass to GetStdHandle
pub const STD_INPUT_HANDLE: libc::DWORD = -10i32 as libc::DWORD;
pub const STD_OUTPUT_HANDLE: libc::DWORD = -11i32 as libc::DWORD;
pub const STD_ERROR_HANDLE: libc::DWORD = -12i32 as libc::DWORD;
#[repr(C)]
#[cfg(target_arch = "x86")]
pub struct WSADATA {
pub wVersion: libc::WORD,
pub wHighVersion: libc::WORD,
pub szDescription: [u8; WSADESCRIPTION_LEN + 1],
pub szSystemStatus: [u8; WSASYS_STATUS_LEN + 1],
pub iMaxSockets: u16,
pub iMaxUdpDg: u16,
pub lpVendorInfo: *mut u8,
}
#[repr(C)]
#[cfg(target_arch = "x86_64")]
pub struct WSADATA {
pub wVersion: libc::WORD,
pub wHighVersion: libc::WORD,
pub iMaxSockets: u16,
pub iMaxUdpDg: u16,
pub lpVendorInfo: *mut u8,
pub szDescription: [u8; WSADESCRIPTION_LEN + 1],
pub szSystemStatus: [u8; WSASYS_STATUS_LEN + 1],
}
pub type LPWSADATA = *mut WSADATA;
#[repr(C)]
pub struct WSANETWORKEVENTS {
pub lNetworkEvents: libc::c_long,
pub iErrorCode: [libc::c_int; FD_MAX_EVENTS],
}
pub type LPWSANETWORKEVENTS = *mut WSANETWORKEVENTS;
pub type WSAEVENT = libc::HANDLE;
#[repr(C)]
pub struct WSAPROTOCOL_INFO {
pub dwServiceFlags1: libc::DWORD,
pub dwServiceFlags2: libc::DWORD,
pub dwServiceFlags3: libc::DWORD,
pub dwServiceFlags4: libc::DWORD,
pub dwProviderFlags: libc::DWORD,
pub ProviderId: GUID,
pub dwCatalogEntryId: libc::DWORD,
pub ProtocolChain: WSAPROTOCOLCHAIN,
pub iVersion: libc::c_int,
pub iAddressFamily: libc::c_int,
pub iMaxSockAddr: libc::c_int,
pub iMinSockAddr: libc::c_int,
pub iSocketType: libc::c_int,
pub iProtocol: libc::c_int,
pub iProtocolMaxOffset: libc::c_int,
pub iNetworkByteOrder: libc::c_int,
pub iSecurityScheme: libc::c_int,
pub dwMessageSize: libc::DWORD,
pub dwProviderReserved: libc::DWORD,
pub szProtocol: [u16; (WSAPROTOCOL_LEN as usize) + 1],
}
pub type LPWSAPROTOCOL_INFO = *mut WSAPROTOCOL_INFO;
#[repr(C)]
pub struct fd_set {
fd_count: libc::c_uint,
fd_array: [libc::SOCKET; FD_SETSIZE],
}
pub fn fd_set(set: &mut fd_set, s: libc::SOCKET) {
set.fd_array[set.fd_count as usize] = s;
set.fd_count += 1;
}
pub type SHORT = libc::c_short;
#[repr(C)]
pub struct COORD {
pub X: SHORT,
pub Y: SHORT,
}
#[repr(C)]
pub struct SMALL_RECT {
pub Left: SHORT,
pub Top: SHORT,
pub Right: SHORT,
pub Bottom: SHORT,
}
#[repr(C)]
pub struct CONSOLE_SCREEN_BUFFER_INFO {
pub dwSize: COORD,
pub dwCursorPosition: COORD,
pub wAttributes: libc::WORD,
pub srWindow: SMALL_RECT,
pub dwMaximumWindowSize: COORD,
}
pub type PCONSOLE_SCREEN_BUFFER_INFO = *mut CONSOLE_SCREEN_BUFFER_INFO;
#[repr(C)]
pub struct WIN32_FILE_ATTRIBUTE_DATA {
pub dwFileAttributes: libc::DWORD,
pub ftCreationTime: libc::FILETIME,
pub ftLastAccessTime: libc::FILETIME,
pub ftLastWriteTime: libc::FILETIME,
pub nFileSizeHigh: libc::DWORD,
pub nFileSizeLow: libc::DWORD,
}
#[repr(C)]
pub struct BY_HANDLE_FILE_INFORMATION {
pub dwFileAttributes: libc::DWORD,
pub ftCreationTime: libc::FILETIME,
pub ftLastAccessTime: libc::FILETIME,
pub ftLastWriteTime: libc::FILETIME,
pub dwVolumeSerialNumber: libc::DWORD,
pub nFileSizeHigh: libc::DWORD,
pub nFileSizeLow: libc::DWORD,
pub nNumberOfLinks: libc::DWORD,
pub nFileIndexHigh: libc::DWORD,
pub nFileIndexLow: libc::DWORD,
}
pub type LPBY_HANDLE_FILE_INFORMATION = *mut BY_HANDLE_FILE_INFORMATION;
#[repr(C)]
pub enum GET_FILEEX_INFO_LEVELS {
GetFileExInfoStandard,
GetFileExMaxInfoLevel
}
#[repr(C)]
pub enum FILE_INFO_BY_HANDLE_CLASS {
FileBasicInfo = 0,
FileStandardInfo = 1,
FileNameInfo = 2,
FileRenameInfo = 3,
FileDispositionInfo = 4,
FileAllocationInfo = 5,
FileEndOfFileInfo = 6,
FileStreamInfo = 7,
FileCompressionInfo = 8,
FileAttributeTagInfo = 9,
FileIdBothDirectoryInfo = 10, // 0xA
FileIdBothDirectoryRestartInfo = 11, // 0xB
FileIoPriorityHintInfo = 12, // 0xC
FileRemoteProtocolInfo = 13, // 0xD
FileFullDirectoryInfo = 14, // 0xE
FileFullDirectoryRestartInfo = 15, // 0xF
FileStorageInfo = 16, // 0x10
FileAlignmentInfo = 17, // 0x11
FileIdInfo = 18, // 0x12
FileIdExtdDirectoryInfo = 19, // 0x13
FileIdExtdDirectoryRestartInfo = 20, // 0x14
MaximumFileInfoByHandlesClass
}
#[repr(C)]
pub struct FILE_END_OF_FILE_INFO {
pub EndOfFile: libc::LARGE_INTEGER,
}
#[link(name = "ws2_32")]
extern "system" {
pub fn WSAStartup(wVersionRequested: libc::WORD,
lpWSAData: LPWSADATA) -> libc::c_int;
pub fn WSACleanup() -> libc::c_int;
pub fn WSAGetLastError() -> libc::c_int;
pub fn WSACloseEvent(hEvent: WSAEVENT) -> libc::BOOL;
pub fn WSACreateEvent() -> WSAEVENT;
pub fn WSAEventSelect(s: libc::SOCKET,
hEventObject: WSAEVENT,
lNetworkEvents: libc::c_long) -> libc::c_int;
pub fn WSASetEvent(hEvent: WSAEVENT) -> libc::BOOL;
pub fn WSAWaitForMultipleEvents(cEvents: libc::DWORD,
lphEvents: *const WSAEVENT,
fWaitAll: libc::BOOL,
dwTimeout: libc::DWORD,
fAltertable: libc::BOOL) -> libc::DWORD;
pub fn WSAEnumNetworkEvents(s: libc::SOCKET,
hEventObject: WSAEVENT,
lpNetworkEvents: LPWSANETWORKEVENTS)
-> libc::c_int;
pub fn WSADuplicateSocketW(s: libc::SOCKET,
dwProcessId: libc::DWORD,
lpProtocolInfo: LPWSAPROTOCOL_INFO)
-> libc::c_int;
pub fn GetCurrentProcessId() -> libc::DWORD;
pub fn WSASocketW(af: libc::c_int,
kind: libc::c_int,
protocol: libc::c_int,
lpProtocolInfo: LPWSAPROTOCOL_INFO,
g: GROUP,
dwFlags: libc::DWORD) -> libc::SOCKET;
pub fn ioctlsocket(s: libc::SOCKET, cmd: libc::c_long,
argp: *mut libc::c_ulong) -> libc::c_int;
pub fn select(nfds: libc::c_int,
readfds: *mut fd_set,
writefds: *mut fd_set,
exceptfds: *mut fd_set,
timeout: *mut libc::timeval) -> libc::c_int;
pub fn getsockopt(sockfd: libc::SOCKET,
level: libc::c_int,
optname: libc::c_int,
optval: *mut libc::c_char,
optlen: *mut libc::c_int) -> libc::c_int;
pub fn SetEvent(hEvent: libc::HANDLE) -> libc::BOOL;
pub fn WaitForMultipleObjects(nCount: libc::DWORD,
lpHandles: *const libc::HANDLE,
bWaitAll: libc::BOOL,
dwMilliseconds: libc::DWORD) -> libc::DWORD;
pub fn CancelIo(hFile: libc::HANDLE) -> libc::BOOL;
pub fn CancelIoEx(hFile: libc::HANDLE,
lpOverlapped: libc::LPOVERLAPPED) -> libc::BOOL;
}
pub mod compat {
use prelude::v1::*;
use ffi::CString;
use libc::types::os::arch::extra::{LPCWSTR, HMODULE, LPCSTR, LPVOID};
use sync::atomic::{AtomicUsize, Ordering};
extern "system" {
fn GetModuleHandleW(lpModuleName: LPCWSTR) -> HMODULE;
fn GetProcAddress(hModule: HMODULE, lpProcName: LPCSTR) -> LPVOID;
}
fn store_func(ptr: &AtomicUsize, module: &str, symbol: &str,
fallback: usize) -> usize {
let mut module: Vec<u16> = module.utf16_units().collect();
module.push(0);
let symbol = CString::new(symbol).unwrap();
let func = unsafe {
let handle = GetModuleHandleW(module.as_ptr());
GetProcAddress(handle, symbol.as_ptr()) as usize
};
let value = if func == 0 {fallback} else {func};
ptr.store(value, Ordering::SeqCst);
value
}
/// Macro for creating a compatibility fallback for a Windows function
///
/// # Examples
/// ```
/// compat_fn!(adll32::SomeFunctionW(_arg: LPCWSTR) {
/// // Fallback implementation
/// })
/// ```
///
/// Note that arguments unused by the fallback implementation should not be
/// called `_` as they are used to be passed to the real function if
/// available.
macro_rules! compat_fn {
($module:ident::$symbol:ident($($argname:ident: $argtype:ty),*)
-> $rettype:ty { $fallback:expr }) => (
#[inline(always)]
pub unsafe fn $symbol($($argname: $argtype),*) -> $rettype {
use sync::atomic::{AtomicUsize, ATOMIC_USIZE_INIT, Ordering};
use mem;
static PTR: AtomicUsize = ATOMIC_USIZE_INIT;
fn load() -> usize {
::sys::c::compat::store_func(&PTR,
stringify!($module),
stringify!($symbol),
fallback as usize)
}
extern "system" fn fallback($($argname: $argtype),*)
-> $rettype { $fallback }
let addr = match PTR.load(Ordering::SeqCst) {
0 => load(),
n => n,
};
let f: extern "system" fn($($argtype),*) -> $rettype =
mem::transmute(addr);
f($($argname),*)
}
)
}
/// Compatibility layer for functions in `kernel32.dll`
///
/// Latest versions of Windows this is needed for:
///
/// * `CreateSymbolicLinkW`: Windows XP, Windows Server 2003
/// * `GetFinalPathNameByHandleW`: Windows XP, Windows Server 2003
pub mod kernel32 {
use libc::c_uint;
use libc::types::os::arch::extra::{DWORD, LPCWSTR, BOOLEAN, HANDLE};
use libc::consts::os::extra::ERROR_CALL_NOT_IMPLEMENTED;
use sys::c::SetLastError;
compat_fn! {
kernel32::CreateSymbolicLinkW(_lpSymlinkFileName: LPCWSTR,
_lpTargetFileName: LPCWSTR,
_dwFlags: DWORD) -> BOOLEAN {
unsafe { SetLastError(ERROR_CALL_NOT_IMPLEMENTED as DWORD); 0 }
}
}
compat_fn! {
kernel32::GetFinalPathNameByHandleW(_hFile: HANDLE,
_lpszFilePath: LPCWSTR,
_cchFilePath: DWORD,
_dwFlags: DWORD) -> DWORD {
unsafe { SetLastError(ERROR_CALL_NOT_IMPLEMENTED as DWORD); 0 }
}
}
compat_fn! {
kernel32::SetThreadErrorMode(_dwNewMode: DWORD, _lpOldMode: *mut DWORD) -> c_uint {
unsafe { SetLastError(ERROR_CALL_NOT_IMPLEMENTED as DWORD); 0 }
}
}
}
}
extern "system" {
// FIXME - pInputControl should be PCONSOLE_READCONSOLE_CONTROL
pub fn ReadConsoleW(hConsoleInput: libc::HANDLE,
lpBuffer: libc::LPVOID,
nNumberOfCharsToRead: libc::DWORD,
lpNumberOfCharsRead: libc::LPDWORD,
pInputControl: libc::LPVOID) -> libc::BOOL;
pub fn WriteConsoleW(hConsoleOutput: libc::HANDLE,
lpBuffer: libc::types::os::arch::extra::LPCVOID,
nNumberOfCharsToWrite: libc::DWORD,
lpNumberOfCharsWritten: libc::LPDWORD,
lpReserved: libc::LPVOID) -> libc::BOOL;
pub fn GetConsoleMode(hConsoleHandle: libc::HANDLE,
lpMode: libc::LPDWORD) -> libc::BOOL;
pub fn SetConsoleMode(hConsoleHandle: libc::HANDLE,
lpMode: libc::DWORD) -> libc::BOOL;
pub fn GetConsoleScreenBufferInfo(
hConsoleOutput: libc::HANDLE,
lpConsoleScreenBufferInfo: PCONSOLE_SCREEN_BUFFER_INFO,
) -> libc::BOOL;
pub fn GetFileAttributesExW(lpFileName: libc::LPCWSTR,
fInfoLevelId: GET_FILEEX_INFO_LEVELS,
lpFileInformation: libc::LPVOID) -> libc::BOOL;
pub fn RemoveDirectoryW(lpPathName: libc::LPCWSTR) -> libc::BOOL;
pub fn SetFileAttributesW(lpFileName: libc::LPCWSTR,
dwFileAttributes: libc::DWORD) -> libc::BOOL;
pub fn GetFileAttributesW(lpFileName: libc::LPCWSTR) -> libc::DWORD;
pub fn GetFileInformationByHandle(hFile: libc::HANDLE,
lpFileInformation: LPBY_HANDLE_FILE_INFORMATION)
-> libc::BOOL;
pub fn SetLastError(dwErrCode: libc::DWORD);
pub fn GetCommandLineW() -> *mut libc::LPCWSTR;
pub fn LocalFree(ptr: *mut libc::c_void);
pub fn CommandLineToArgvW(lpCmdLine: *mut libc::LPCWSTR,
pNumArgs: *mut libc::c_int) -> *mut *mut u16;
pub fn SetFileTime(hFile: libc::HANDLE,
lpCreationTime: *const libc::FILETIME,
lpLastAccessTime: *const libc::FILETIME,
lpLastWriteTime: *const libc::FILETIME) -> libc::BOOL;
pub fn SetFileInformationByHandle(hFile: libc::HANDLE,
FileInformationClass: FILE_INFO_BY_HANDLE_CLASS,
lpFileInformation: libc::LPVOID,
dwBufferSize: libc::DWORD) -> libc::BOOL;
pub fn GetTempPathW(nBufferLength: libc::DWORD,
lpBuffer: libc::LPCWSTR) -> libc::DWORD;
pub fn OpenProcessToken(ProcessHandle: libc::HANDLE,
DesiredAccess: libc::DWORD,
TokenHandle: *mut libc::HANDLE) -> libc::BOOL;
pub fn GetCurrentProcess() -> libc::HANDLE;
pub fn GetStdHandle(which: libc::DWORD) -> libc::HANDLE;
pub fn ExitProcess(uExitCode: libc::c_uint) -> !;
}
#[link(name = "userenv")]
extern "system" {
pub fn GetUserProfileDirectoryW(hToken: libc::HANDLE,
lpProfileDir: libc::LPCWSTR,
lpcchSize: *mut libc::DWORD) -> libc::BOOL;
}