import KernelEx-4.0-RC2

apilibs/kexbases/Kernel32/FileApis_fix.c

@@ -0,0 +1,107 @@
+/*
+ *  KernelEx
+ *  Copyright (C) 2008-2009, Xeno86
+ *
+ *  This file is part of KernelEx source code.
+ *
+ *  KernelEx is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published
+ *  by the Free Software Foundation; version 2 of the License.
+ *
+ *  KernelEx is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GNU Make; see the file COPYING.  If not, write to
+ *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <windows.h>
+
+/* MAKE_EXPORT CreateFileA_fix=CreateFileA */
+HANDLE WINAPI CreateFileA_fix(LPCSTR lpFileName, DWORD dwDesiredAccess, 
+	DWORD dwShareMode, LPSECURITY_ATTRIBUTES lpSecurityAttributes, 
+	DWORD dwCreationDistribution, DWORD dwFlagsAndAttributes, HANDLE hTemplateFile)
+{
+	/* translate NT-specific access rights to generic ones */
+	if (dwDesiredAccess & ~0xf0010100)
+	{
+		DWORD oldaccess = dwDesiredAccess;
+		dwDesiredAccess &= 0xf0010100;
+		if (oldaccess & FILE_READ_DATA)
+			dwDesiredAccess |= GENERIC_READ;
+		if (oldaccess & FILE_WRITE_DATA)
+			dwDesiredAccess |= GENERIC_WRITE;
+		if (oldaccess & FILE_EXECUTE)
+			dwDesiredAccess |= GENERIC_EXECUTE;
+	}
+	// hTemplate has to be NULL on 9x
+	hTemplateFile = NULL;
+	// special case: overlapped I/O
+	if (dwFlagsAndAttributes & FILE_FLAG_OVERLAPPED)
+	{
+		DWORD lasterr = GetLastError();
+		HANDLE h;
+		h = CreateFileA(lpFileName, dwDesiredAccess, dwShareMode, lpSecurityAttributes, 
+				dwCreationDistribution, dwFlagsAndAttributes, hTemplateFile);
+		if (h != INVALID_HANDLE_VALUE)
+			return h;
+		SetLastError(lasterr);
+		dwFlagsAndAttributes &= ~FILE_FLAG_OVERLAPPED;
+	}
+	return CreateFileA(lpFileName, dwDesiredAccess, dwShareMode, lpSecurityAttributes, 
+		dwCreationDistribution, dwFlagsAndAttributes, hTemplateFile);
+}
+
+/* MAKE_EXPORT ReadFile_fix=ReadFile */
+BOOL WINAPI ReadFile_fix(HANDLE hFile, LPVOID lpBuffer, DWORD nNumberOfBytesToRead,
+	LPDWORD lpNumberOfBytesRead, LPOVERLAPPED lpOverlapped)
+{
+	DWORD lasterr = GetLastError();
+
+	if (ReadFile(hFile, lpBuffer, nNumberOfBytesToRead, lpNumberOfBytesRead, 
+			lpOverlapped))
+		return TRUE;
+
+	if (lpOverlapped && GetLastError() == ERROR_INVALID_PARAMETER)
+	{
+		LONG high = lpOverlapped->OffsetHigh;
+		DWORD nr;
+		SetLastError(lasterr);
+		if ((SetFilePointer(hFile, lpOverlapped->Offset, &high, FILE_BEGIN)
+				== (DWORD)-1 && GetLastError() != NO_ERROR) ||
+				(ReadFile(hFile, lpBuffer, nNumberOfBytesToRead, &nr, 0) && !nr))
+		{
+			SetLastError(ERROR_HANDLE_EOF);
+			return FALSE;
+		}
+		*lpNumberOfBytesRead = nr;
+		return TRUE;
+	}
+	return FALSE;
+}
+
+/* MAKE_EXPORT WriteFile_fix=WriteFile */
+BOOL WINAPI WriteFile_fix(HANDLE hFile, LPCVOID lpBuffer, DWORD nNumberOfBytesToWrite, 
+	LPDWORD lpNumberOfBytesWritten, LPOVERLAPPED lpOverlapped)
+{
+	DWORD lasterr = GetLastError();
+
+	if (WriteFile(hFile, lpBuffer, nNumberOfBytesToWrite, 
+			lpNumberOfBytesWritten, lpOverlapped))
+		return TRUE;
+
+	if (lpOverlapped && GetLastError() == ERROR_INVALID_PARAMETER)
+	{
+		LONG high = lpOverlapped->OffsetHigh;
+		SetLastError(lasterr);
+		if ((SetFilePointer(hFile, lpOverlapped->Offset, &high, FILE_BEGIN)
+				== (DWORD)-1 && GetLastError() != NO_ERROR))
+			return FALSE;
+		return WriteFile(hFile, lpBuffer, nNumberOfBytesToWrite, lpNumberOfBytesWritten, 0);
+	}
+	return FALSE;
+}