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------------------------------------------------------------------
--
-- Author: Alexey Melnichuk <alexeymelnichuck@gmail.com>
--
-- Copyright (C) 2013-2016 Alexey Melnichuk <alexeymelnichuck@gmail.com>
--
-- Licensed according to the included 'LICENCE' document
--
-- This file is part of lua-path library.
--
------------------------------------------------------------------
local ffi = require "ffi"
local types = require "path.win32.ffi.types"
ffi.cdef[[
DWORD __stdcall GetCurrentDirectoryA( DWORD nBufferLength, CHAR* lpBuffer);
DWORD __stdcall GetCurrentDirectoryW( DWORD nBufferLength, CHAR* lpBuffer);
BOOL __stdcall SetCurrentDirectoryA(const CHAR* lpPathName);
BOOL __stdcall SetCurrentDirectoryW(const CHAR* lpPathName);
DWORD __stdcall GetTempPathA(DWORD n, CHAR* buf);
DWORD __stdcall GetTempPathW(DWORD n, CHAR* buf);
DWORD __stdcall GetFileAttributesExA(const CHAR* lpFileName, GET_FILEEX_INFO_LEVELS fInfoLevelId, void* lpFileInformation);
DWORD __stdcall GetFileAttributesExW(const CHAR* lpFileName, GET_FILEEX_INFO_LEVELS fInfoLevelId, void* lpFileInformation);
BOOL __stdcall CopyFileA(const CHAR* src, const CHAR* dst, BOOL flag);
BOOL __stdcall CopyFileW(const CHAR* src, const CHAR* dst, BOOL flag);
HANDLE __stdcall FindFirstFileA(const CHAR* pattern, WIN32_FIND_DATAA* fd);
HANDLE __stdcall FindFirstFileW(const CHAR* pattern, WIN32_FIND_DATAW* fd);
int __stdcall FindNextFileA(HANDLE ff, WIN32_FIND_DATAA* fd);
int __stdcall FindNextFileW(HANDLE ff, WIN32_FIND_DATAW* fd);
int __stdcall FindClose(HANDLE ff);
DWORD __stdcall GetLastError();
BOOL __stdcall RemoveDirectoryA(const CHAR* src);
BOOL __stdcall RemoveDirectoryW(const CHAR* src);
BOOL __stdcall MoveFileExA(const CHAR* src, const CHAR* dst, DWORD flags);
BOOL __stdcall MoveFileExW(const CHAR* src, const CHAR* dst, DWORD flags);
BOOL __stdcall DeleteFileA(const CHAR* src);
BOOL __stdcall DeleteFileW(const CHAR* src);
BOOL __stdcall CreateDirectoryA(const CHAR* src, void* lpSecurityAttributes);
BOOL __stdcall CreateDirectoryW(const CHAR* src, void* lpSecurityAttributes);
HANDLE __stdcall CreateFileA(const CHAR* lpFileName, DWORD dwDesiredAccess, DWORD dwShareMode, void* lpSecurityAttributes,
DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes, HANDLE hTemplateFile
);
HANDLE __stdcall CreateFileW(const CHAR* lpFileName, DWORD dwDesiredAccess, DWORD dwShareMode, void* lpSecurityAttributes,
DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes, HANDLE hTemplateFile
);
BOOL __stdcall SetFileTime(HANDLE hFile, const FILETIME *lpCreationTime, const FILETIME *lpLastAccessTime,const FILETIME *lpLastWriteTime);
BOOL __stdcall CloseHandle(HANDLE hObject);
DWORD __stdcall FormatMessageA(DWORD dwFlags, void* lpSource, DWORD dwMessageId, DWORD dwLanguageId, LPVOID lpBuffer, DWORD nSize, void *Arguments);
DWORD __stdcall FormatMessageW(DWORD dwFlags, void* lpSource, DWORD dwMessageId, DWORD dwLanguageId, LPVOID lpBuffer, DWORD nSize, void *Arguments);
HLOCAL __stdcall LocalFree( HLOCAL hMem );
BOOL __stdcall DeviceIoControl(HANDLE hDevice, DWORD dwIoControlCode, void* lpInBuffer, DWORD nInBufferSize, void* lpOutBuffer, DWORD nOutBufferSize, DWORD* lpBytesReturned, void* lpOverlapped);
]]
local C = ffi.C
local CTYPES = types.CTYPES
local CTYPE2LUA = types.CTYPE2LUA
local WIN32_FIND_DATAA = CTYPES.WIN32_FIND_DATAA
local WIN32_FIND_DATAW = CTYPES.WIN32_FIND_DATAW
local FILETIME = CTYPES.FILETIME
local INVALID_HANDLE = types.INVALID_HANDLE
local NULL = ffi.cast("void*", 0)
local NULLSTR = ffi.cast("CHAR*", NULL)
local function GetCurrentDirectory(u)
local n = (u and C.GetCurrentDirectoryW or C.GetCurrentDirectoryA)(0,NULLSTR)
if n == 0 then
local err = C.GetLastError()
return nil, err
end
local buf = ffi.new(CTYPES.VLA_CHAR, u and 2*n or n)
n = (u and C.GetCurrentDirectoryW or C.GetCurrentDirectoryA)(n, buf)
if n == 0 then
local err = C.GetLastError()
return nil, err
end
return ffi.string(buf, u and 2*n or n)
end
local function SetCurrentDirectory(u, P)
local ret
if u then ret = C.SetCurrentDirectoryW(P .. "\0")
else ret = C.SetCurrentDirectoryA(P) end
if ret == 0 then
local err = C.GetLastError()
return nil, err
end
return true
end
local function GetTempPath(u)
local n = (u and C.GetTempPathW or C.GetTempPathA)(0,NULLSTR)
if n == 0 then
local err = C.GetLastError()
return nil, err
end
local buf = ffi.new(CTYPES.VLA_CHAR, u and 2*n or n)
n = (u and C.GetTempPathW or C.GetTempPathA)(n, buf)
if n == 0 then
local err = C.GetLastError()
return nil, err
end
return ffi.string(buf, u and 2*n or n)
end
local function GetFileAttributesEx(u, P)
local ret, info
if u then
info = WIN32_FIND_DATAW()
ret = C.GetFileAttributesExW(P .. "\0", C.GetFileExInfoStandard, info)
else
info = WIN32_FIND_DATAA()
ret = C.GetFileAttributesExA(P, C.GetFileExInfoStandard, info)
end
if ret == 0 then
local err = C.GetLastError()
return nil, err
end
return info
end
local function CopyFile(u, src, dst, flag)
local ret
if u then ret = C.CopyFileW(src .. "\0", dst .. "\0", flag and 1 or 0)
else ret = C.CopyFileA(src, dst, flag and 1 or 0) end
if ret == 0 then
local err = C.GetLastError()
return nil, err
end
return true
end
local function FindFirstFile(u, P)
local ret, fd, err
if u then
fd = WIN32_FIND_DATAW()
ret = C.FindFirstFileW(P .. "\0", fd)
else
fd = WIN32_FIND_DATAA()
ret = C.FindFirstFileA(P, fd)
end
if ret == INVALID_HANDLE then
local err = C.GetLastError()
return nil, err
end
ffi.gc(ret, C.FindClose)
return ret, fd
end
local function FindNextFile(u, h, fd)
local ret
if u then ret = C.FindNextFileW(h, fd)
else ret = C.FindNextFileA(h, fd) end
return ret
end
local function FindClose(h)
C.FindClose(ffi.gc(h, nil))
end
local function RemoveDirectory(u, src)
local ret
if u then ret = C.RemoveDirectoryW(src .. "\0")
else ret = C.RemoveDirectoryA(src) end
if ret == 0 then
local err = C.GetLastError()
return nil, err
end
return true
end
local function DeleteFile(u, src)
local ret
if u then ret = C.DeleteFileW(src .. "\0")
else ret = C.DeleteFileA(src) end
if ret == 0 then
local err = C.GetLastError()
return nil, err
end
return true
end
local function MoveFileEx(u, src, dst, flag)
local ret
if u then ret = C.MoveFileExW(src .. "\0", dst .. "\0", flag and flag or 0)
else ret = C.MoveFileExA(src, dst, flag and flag or 0) end
if ret == 0 then
local err = C.GetLastError()
return nil, err
end
return true
end
local function CreateDirectory(u, src)
local ret
if u then ret = C.CreateDirectoryW(src .. "\0",NULL)
else ret = C.CreateDirectoryA(src,NULL) end
if ret == 0 then
local err = C.GetLastError()
return nil, err
end
return true
end
local function CreateFile(u, P, access, share, sec, mode, attr, template)
local p = P
if u then p = p .. "\0" end
local h = (u and C.CreateFileW or C.CreateFileA)(
p, access, share, sec or NULL, mode, attr, template or NULL
);
if INVALID_HANDLE == h then
local err = C.GetLastError()
return nil, err
end
return ffi.gc(h, C.CloseHandle)
end
local function CloseHandle(h)
return C.CloseHandle(ffi.gc(h, nil))
end
local function newft(t)
if not t then return ffi.cast("FILETIME*", NULL) end
local v = FILETIME()
v.dwLowDateTime, v.dwHighDateTime = t[1], t[2]
return v
end
local function SetFileTime(h, c, a, m)
local ctime, atime, mtime = newft(c), newft(a), newft(m)
local ret = C.SetFileTime(h, ctime, atime, mtime)
if ret ~= 0 then return true end
return nil, C.GetLastError()
end
local FORMAT_MESSAGE_ALLOCATE_BUFFER = 0x00000100
local FORMAT_MESSAGE_IGNORE_INSERTS = 0x00000200
local FORMAT_MESSAGE_FROM_STRING = 0x00000400
local FORMAT_MESSAGE_FROM_HMODULE = 0x00000800
local FORMAT_MESSAGE_FROM_SYSTEM = 0x00001000
local FORMAT_MESSAGE_ARGUMENT_ARRAY = 0x00002000
local FORMAT_MESSAGE_MAX_WIDTH_MASK = 0x000000FF
local function ErrorMessage(u, dwErr, lang)
local lpMsgBuf = ffi.new("LPVOID[1]", 0);
lang = lang or 0
local ret = (u and C.FormatMessageW or C.FormatMessageA)(
FORMAT_MESSAGE_ALLOCATE_BUFFER + FORMAT_MESSAGE_FROM_SYSTEM + FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, dwErr, lang, lpMsgBuf, 0, NULL
);
if ret == 0 then
local err = C.GetLastError()
return "", err
end
local str = ffi.cast(CTYPES.PCHAR, lpMsgBuf[0])
str = ffi.string(str, u and 2 * ret or ret);
ret = C.LocalFree(lpMsgBuf[0]);
return str;
end
local function DeviceIoControl(h, code, inBuffer, inBufferSize, outBuffer, outBufferSize)
if inBuffer == nil then inBuffer, inBufferSize = NULL, 0 end
if outBuffer == nil then outBuffer, outBufferSize = NULL, 0 end
local dwTmp = ffi.new("DWORD[1]", 0)
local ret = C.DeviceIoControl(h, code,
inBuffer, inBufferSize, outBuffer, outBufferSize,
dwTmp, NULL
)
if ret == 0 then
local err = C.GetLastError()
return nil, err
end
return ret, dwTmp[0]
end
local FILE_FLAG_NO_BUFFERING = 0x20000000
local FILE_ATTRIBUTE_NORMAL = 0x00000080
local FILE_SHARE_READ = 0x00000001
local FILE_SHARE_WRITE = 0x00000002
local OPEN_EXISTING = 3
local IOCTL_STORAGE_GET_DEVICE_NUMBER = 0x2D1080
local function DiskNumber(u, P)
local p
if u then p = "\\\0\\\0.\0\\\0" .. P .. "\0"
else p = "\\\\.\\" .. P end
-- Open partition
local hPart, err = CreateFile(u, p, 0,
FILE_SHARE_READ + FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL + FILE_FLAG_NO_BUFFERING, NULL
);
if not hPart then return nil, err end
local Info = CTYPES.STORAGE_DEVICE_NUMBER();
local Info_size = ffi.sizeof(CTYPES.STORAGE_DEVICE_NUMBER)
local ret, dwTmp = DeviceIoControl(hPart, IOCTL_STORAGE_GET_DEVICE_NUMBER,
NULL, 0, Info, Info_size
)
if not ret then err = dwTmp end
if dwTmp ~= Info_size then ret, err = nil, C.GetLastError() end
CloseHandle(hPart)
if not ret then return nil, err end
return {
Info.DeviceType,
Info.DeviceNumber,
Info.PartitionNumber,
}
end
return {
A = {
GetCurrentDirectory = function(...) return GetCurrentDirectory(false, ...) end;
SetCurrentDirectory = function(...) return SetCurrentDirectory(false, ...) end;
GetTempPath = function(...) return GetTempPath (false, ...) end;
GetFileAttributesEx = function(...) return GetFileAttributesEx(false, ...) end;
CopyFile = function(...) return CopyFile (false, ...) end;
FindFirstFile = function(...) return FindFirstFile (false, ...) end;
FindNextFile = function(...) return FindNextFile (false, ...) end;
RemoveDirectory = function(...) return RemoveDirectory (false, ...) end;
DeleteFile = function(...) return DeleteFile (false, ...) end;
CreateDirectory = function(...) return CreateDirectory (false, ...) end;
CreateFile = function(...) return CreateFile (false, ...) end;
MoveFileEx = function(...) return MoveFileEx (false, ...) end;
ErrorMessage = function(...) return ErrorMessage (false, ...) end;
DiskNumber = function(...) return DiskNumber (false, ...) end;
FindClose = FindClose;
CloseHandle = CloseHandle;
SetFileTime = SetFileTime;
DeviceIoControl = DeviceIoControl;
WIN32_FIND_DATA2TABLE = CTYPE2LUA.WIN32_FIND_DATAA;
DIR_SEP = "\\";
ANY_MASK = "*";
};
W = {
GetCurrentDirectory = function(...) return GetCurrentDirectory(true, ...) end;
SetCurrentDirectory = function(...) return SetCurrentDirectory(true, ...) end;
GetTempPath = function(...) return GetTempPath (true, ...) end;
GetFileAttributesEx = function(...) return GetFileAttributesEx(true, ...) end;
CopyFile = function(...) return CopyFile (true, ...) end;
FindFirstFile = function(...) return FindFirstFile (true, ...) end;
FindNextFile = function(...) return FindNextFile (true, ...) end;
RemoveDirectory = function(...) return RemoveDirectory (true, ...) end;
DeleteFile = function(...) return DeleteFile (true, ...) end;
CreateDirectory = function(...) return CreateDirectory (true, ...) end;
CreateFile = function(...) return CreateFile (true, ...) end;
MoveFileEx = function(...) return MoveFileEx (true, ...) end;
ErrorMessage = function(...) return ErrorMessage (true, ...) end;
DiskNumber = function(...) return DiskNumber (true, ...) end;
FindClose = FindClose;
CloseHandle = CloseHandle;
SetFileTime = SetFileTime;
DeviceIoControl = DeviceIoControl;
WIN32_FIND_DATA2TABLE = CTYPE2LUA.WIN32_FIND_DATAW;
DIR_SEP = "\\\000";
ANY_MASK = "*\000";
};
} |