Sweden-Number/dlls/kernelbase/file.c

1633 lines
52 KiB
C

/*
* File handling functions
*
* Copyright 1993 John Burton
* Copyright 1996, 2004 Alexandre Julliard
* Copyright 2008 Jeff Zaroyko
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#include <stdio.h>
#define NONAMELESSUNION
#define NONAMELESSSTRUCT
#include "winerror.h"
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "windef.h"
#include "winbase.h"
#include "winternl.h"
#include "winioctl.h"
#include "wincon.h"
#include "fileapi.h"
#include "ddk/ntddk.h"
#include "kernelbase.h"
#include "wine/exception.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(file);
const WCHAR windows_dir[] = {'C',':','\\','w','i','n','d','o','w','s',0};
const WCHAR system_dir[] = {'C',':','\\','w','i','n','d','o','w','s','\\','s','y','s','t','e','m','3','2',0};
static const WCHAR krnl386W[] = {'k','r','n','l','3','8','6','.','e','x','e','1','6',0};
static BOOL oem_file_apis;
static void WINAPI read_write_apc( void *apc_user, PIO_STATUS_BLOCK io, ULONG reserved )
{
LPOVERLAPPED_COMPLETION_ROUTINE func = apc_user;
func( RtlNtStatusToDosError( io->u.Status ), io->Information, (LPOVERLAPPED)io );
}
/***********************************************************************
* Operations on file names
***********************************************************************/
/***********************************************************************
* copy_filename_WtoA
*
* copy a file name back to OEM/Ansi, but only if the buffer is large enough
*/
static DWORD copy_filename_WtoA( LPCWSTR nameW, LPSTR buffer, DWORD len )
{
UNICODE_STRING strW;
DWORD ret;
RtlInitUnicodeString( &strW, nameW );
ret = oem_file_apis ? RtlUnicodeStringToOemSize( &strW ) : RtlUnicodeStringToAnsiSize( &strW );
if (buffer && ret <= len)
{
ANSI_STRING str;
str.Buffer = buffer;
str.MaximumLength = min( len, UNICODE_STRING_MAX_CHARS );
if (oem_file_apis)
RtlUnicodeStringToOemString( &str, &strW, FALSE );
else
RtlUnicodeStringToAnsiString( &str, &strW, FALSE );
ret = str.Length; /* length without terminating 0 */
}
return ret;
}
/***********************************************************************
* file_name_AtoW
*
* Convert a file name to Unicode, taking into account the OEM/Ansi API mode.
*
* If alloc is FALSE uses the TEB static buffer, so it can only be used when
* there is no possibility for the function to do that twice, taking into
* account any called function.
*/
WCHAR *file_name_AtoW( LPCSTR name, BOOL alloc )
{
ANSI_STRING str;
UNICODE_STRING strW, *pstrW;
NTSTATUS status;
RtlInitAnsiString( &str, name );
pstrW = alloc ? &strW : &NtCurrentTeb()->StaticUnicodeString;
if (oem_file_apis)
status = RtlOemStringToUnicodeString( pstrW, &str, alloc );
else
status = RtlAnsiStringToUnicodeString( pstrW, &str, alloc );
if (status == STATUS_SUCCESS) return pstrW->Buffer;
if (status == STATUS_BUFFER_OVERFLOW)
SetLastError( ERROR_FILENAME_EXCED_RANGE );
else
SetLastError( RtlNtStatusToDosError(status) );
return NULL;
}
/***********************************************************************
* file_name_WtoA
*
* Convert a file name back to OEM/Ansi. Returns number of bytes copied.
*/
DWORD file_name_WtoA( LPCWSTR src, INT srclen, LPSTR dest, INT destlen )
{
DWORD ret;
if (srclen < 0) srclen = lstrlenW( src ) + 1;
if (oem_file_apis)
RtlUnicodeToOemN( dest, destlen, &ret, src, srclen * sizeof(WCHAR) );
else
RtlUnicodeToMultiByteN( dest, destlen, &ret, src, srclen * sizeof(WCHAR) );
return ret;
}
/******************************************************************************
* AreFileApisANSI (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH AreFileApisANSI(void)
{
return !oem_file_apis;
}
/***********************************************************************
* CreateDirectoryA (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH CreateDirectoryA( LPCSTR path, LPSECURITY_ATTRIBUTES sa )
{
WCHAR *pathW;
if (!(pathW = file_name_AtoW( path, FALSE ))) return FALSE;
return CreateDirectoryW( pathW, sa );
}
/***********************************************************************
* CreateDirectoryW (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH CreateDirectoryW( LPCWSTR path, LPSECURITY_ATTRIBUTES sa )
{
OBJECT_ATTRIBUTES attr;
UNICODE_STRING nt_name;
IO_STATUS_BLOCK io;
NTSTATUS status;
HANDLE handle;
TRACE( "%s\n", debugstr_w(path) );
if (!RtlDosPathNameToNtPathName_U( path, &nt_name, NULL, NULL ))
{
SetLastError( ERROR_PATH_NOT_FOUND );
return FALSE;
}
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.ObjectName = &nt_name;
attr.SecurityDescriptor = sa ? sa->lpSecurityDescriptor : NULL;
attr.SecurityQualityOfService = NULL;
status = NtCreateFile( &handle, GENERIC_READ | SYNCHRONIZE, &attr, &io, NULL,
FILE_ATTRIBUTE_NORMAL, FILE_SHARE_READ, FILE_CREATE,
FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT, NULL, 0 );
if (status == STATUS_SUCCESS) NtClose( handle );
RtlFreeUnicodeString( &nt_name );
return set_ntstatus( status );
}
/***********************************************************************
* CreateDirectoryEx (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH CreateDirectoryExW( LPCWSTR template, LPCWSTR path,
LPSECURITY_ATTRIBUTES sa )
{
return CreateDirectoryW( path, sa );
}
/*************************************************************************
* CreateFile2 (kernelbase.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH CreateFile2( LPCWSTR name, DWORD access, DWORD sharing, DWORD creation,
CREATEFILE2_EXTENDED_PARAMETERS *params )
{
LPSECURITY_ATTRIBUTES sa = params ? params->lpSecurityAttributes : NULL;
DWORD attributes = params ? params->dwFileAttributes : 0;
HANDLE template = params ? params->hTemplateFile : NULL;
FIXME( "(%s %x %x %x %p), partial stub\n", debugstr_w(name), access, sharing, creation, params );
return CreateFileW( name, access, sharing, sa, creation, attributes, template );
}
/*************************************************************************
* CreateFileA (kernelbase.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH CreateFileA( LPCSTR name, DWORD access, DWORD sharing,
LPSECURITY_ATTRIBUTES sa, DWORD creation,
DWORD attributes, HANDLE template)
{
WCHAR *nameW;
if ((GetVersion() & 0x80000000) && IsBadStringPtrA( name, -1 )) return INVALID_HANDLE_VALUE;
if (!(nameW = file_name_AtoW( name, FALSE ))) return INVALID_HANDLE_VALUE;
return CreateFileW( nameW, access, sharing, sa, creation, attributes, template );
}
/*************************************************************************
* CreateFileW (kernelbase.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH CreateFileW( LPCWSTR filename, DWORD access, DWORD sharing,
LPSECURITY_ATTRIBUTES sa, DWORD creation,
DWORD attributes, HANDLE template )
{
NTSTATUS status;
UINT options;
OBJECT_ATTRIBUTES attr;
UNICODE_STRING nameW;
IO_STATUS_BLOCK io;
HANDLE ret;
DWORD dosdev;
const WCHAR *vxd_name = NULL;
static const WCHAR bkslashes_with_dotW[] = {'\\','\\','.','\\',0};
static const WCHAR coninW[] = {'C','O','N','I','N','$',0};
static const WCHAR conoutW[] = {'C','O','N','O','U','T','$',0};
SECURITY_QUALITY_OF_SERVICE qos;
static const UINT nt_disposition[5] =
{
FILE_CREATE, /* CREATE_NEW */
FILE_OVERWRITE_IF, /* CREATE_ALWAYS */
FILE_OPEN, /* OPEN_EXISTING */
FILE_OPEN_IF, /* OPEN_ALWAYS */
FILE_OVERWRITE /* TRUNCATE_EXISTING */
};
/* sanity checks */
if (!filename || !filename[0])
{
SetLastError( ERROR_PATH_NOT_FOUND );
return INVALID_HANDLE_VALUE;
}
TRACE( "%s %s%s%s%s%s%s%s creation %d attributes 0x%x\n", debugstr_w(filename),
(access & GENERIC_READ) ? "GENERIC_READ " : "",
(access & GENERIC_WRITE) ? "GENERIC_WRITE " : "",
(access & GENERIC_EXECUTE) ? "GENERIC_EXECUTE " : "",
!access ? "QUERY_ACCESS " : "",
(sharing & FILE_SHARE_READ) ? "FILE_SHARE_READ " : "",
(sharing & FILE_SHARE_WRITE) ? "FILE_SHARE_WRITE " : "",
(sharing & FILE_SHARE_DELETE) ? "FILE_SHARE_DELETE " : "",
creation, attributes);
/* Open a console for CONIN$ or CONOUT$ */
if (!wcsicmp(filename, coninW) || !wcsicmp(filename, conoutW))
{
ret = OpenConsoleW( filename, access, sa && sa->bInheritHandle, creation ? OPEN_EXISTING : 0 );
if (ret == INVALID_HANDLE_VALUE) SetLastError( ERROR_INVALID_PARAMETER );
return ret;
}
if (!wcsncmp( filename, bkslashes_with_dotW, 4 ))
{
static const WCHAR pipeW[] = {'P','I','P','E','\\',0};
static const WCHAR mailslotW[] = {'M','A','I','L','S','L','O','T','\\',0};
if ((iswalpha(filename[4]) && filename[5] == ':' && filename[6] == '\0') ||
!wcsnicmp( filename + 4, pipeW, 5 ) ||
!wcsnicmp( filename + 4, mailslotW, 9 ))
{
dosdev = 0;
}
else if ((dosdev = RtlIsDosDeviceName_U( filename + 4 )))
{
dosdev += MAKELONG( 0, 4*sizeof(WCHAR) ); /* adjust position to start of filename */
}
else if (GetVersion() & 0x80000000)
{
vxd_name = filename + 4;
if (!creation) creation = OPEN_EXISTING;
}
}
else dosdev = RtlIsDosDeviceName_U( filename );
if (dosdev)
{
static const WCHAR conW[] = {'C','O','N'};
if (LOWORD(dosdev) == sizeof(conW) &&
!wcsnicmp( filename + HIWORD(dosdev)/sizeof(WCHAR), conW, ARRAY_SIZE( conW )))
{
switch (access & (GENERIC_READ|GENERIC_WRITE))
{
case GENERIC_READ:
return OpenConsoleW( coninW, access, sa && sa->bInheritHandle, OPEN_EXISTING );
case GENERIC_WRITE:
return OpenConsoleW( conoutW, access, sa && sa->bInheritHandle, OPEN_EXISTING );
default:
SetLastError( ERROR_FILE_NOT_FOUND );
return INVALID_HANDLE_VALUE;
}
}
}
if (creation < CREATE_NEW || creation > TRUNCATE_EXISTING)
{
SetLastError( ERROR_INVALID_PARAMETER );
return INVALID_HANDLE_VALUE;
}
if (!RtlDosPathNameToNtPathName_U( filename, &nameW, NULL, NULL ))
{
SetLastError( ERROR_PATH_NOT_FOUND );
return INVALID_HANDLE_VALUE;
}
/* now call NtCreateFile */
options = 0;
if (attributes & FILE_FLAG_BACKUP_SEMANTICS)
options |= FILE_OPEN_FOR_BACKUP_INTENT;
else
options |= FILE_NON_DIRECTORY_FILE;
if (attributes & FILE_FLAG_DELETE_ON_CLOSE)
{
options |= FILE_DELETE_ON_CLOSE;
access |= DELETE;
}
if (attributes & FILE_FLAG_NO_BUFFERING)
options |= FILE_NO_INTERMEDIATE_BUFFERING;
if (!(attributes & FILE_FLAG_OVERLAPPED))
options |= FILE_SYNCHRONOUS_IO_NONALERT;
if (attributes & FILE_FLAG_RANDOM_ACCESS)
options |= FILE_RANDOM_ACCESS;
if (attributes & FILE_FLAG_WRITE_THROUGH)
options |= FILE_WRITE_THROUGH;
attributes &= FILE_ATTRIBUTE_VALID_FLAGS;
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.ObjectName = &nameW;
attr.SecurityDescriptor = sa ? sa->lpSecurityDescriptor : NULL;
if (attributes & SECURITY_SQOS_PRESENT)
{
qos.Length = sizeof(qos);
qos.ImpersonationLevel = (attributes >> 16) & 0x3;
qos.ContextTrackingMode = attributes & SECURITY_CONTEXT_TRACKING ? SECURITY_DYNAMIC_TRACKING : SECURITY_STATIC_TRACKING;
qos.EffectiveOnly = (attributes & SECURITY_EFFECTIVE_ONLY) != 0;
attr.SecurityQualityOfService = &qos;
}
else
attr.SecurityQualityOfService = NULL;
if (sa && sa->bInheritHandle) attr.Attributes |= OBJ_INHERIT;
status = NtCreateFile( &ret, access | SYNCHRONIZE | FILE_READ_ATTRIBUTES, &attr, &io,
NULL, attributes, sharing, nt_disposition[creation - CREATE_NEW],
options, NULL, 0 );
if (status)
{
if (vxd_name && vxd_name[0])
{
static HANDLE (*vxd_open)(LPCWSTR,DWORD,SECURITY_ATTRIBUTES*);
if (!vxd_open) vxd_open = (void *)GetProcAddress( GetModuleHandleW(krnl386W),
"__wine_vxd_open" );
if (vxd_open && (ret = vxd_open( vxd_name, access, sa ))) goto done;
}
WARN("Unable to create file %s (status %x)\n", debugstr_w(filename), status);
ret = INVALID_HANDLE_VALUE;
/* In the case file creation was rejected due to CREATE_NEW flag
* was specified and file with that name already exists, correct
* last error is ERROR_FILE_EXISTS and not ERROR_ALREADY_EXISTS.
* Note: RtlNtStatusToDosError is not the subject to blame here.
*/
if (status == STATUS_OBJECT_NAME_COLLISION)
SetLastError( ERROR_FILE_EXISTS );
else
SetLastError( RtlNtStatusToDosError(status) );
}
else
{
if ((creation == CREATE_ALWAYS && io.Information == FILE_OVERWRITTEN) ||
(creation == OPEN_ALWAYS && io.Information == FILE_OPENED))
SetLastError( ERROR_ALREADY_EXISTS );
else
SetLastError( 0 );
}
RtlFreeUnicodeString( &nameW );
done:
if (!ret) ret = INVALID_HANDLE_VALUE;
TRACE("returning %p\n", ret);
return ret;
}
/***********************************************************************
* DeleteFileA (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH DeleteFileA( LPCSTR path )
{
WCHAR *pathW;
if (!(pathW = file_name_AtoW( path, FALSE ))) return FALSE;
return DeleteFileW( pathW );
}
/***********************************************************************
* DeleteFileW (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH DeleteFileW( LPCWSTR path )
{
UNICODE_STRING nameW;
OBJECT_ATTRIBUTES attr;
NTSTATUS status;
HANDLE hFile;
IO_STATUS_BLOCK io;
TRACE( "%s\n", debugstr_w(path) );
if (!RtlDosPathNameToNtPathName_U( path, &nameW, NULL, NULL ))
{
SetLastError( ERROR_PATH_NOT_FOUND );
return FALSE;
}
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.ObjectName = &nameW;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
status = NtCreateFile(&hFile, SYNCHRONIZE | DELETE, &attr, &io, NULL, 0,
FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
FILE_OPEN, FILE_DELETE_ON_CLOSE | FILE_NON_DIRECTORY_FILE, NULL, 0);
if (status == STATUS_SUCCESS) status = NtClose(hFile);
RtlFreeUnicodeString( &nameW );
return set_ntstatus( status );
}
/******************************************************************************
* GetCompressedFileSizeA (kernelbase.@)
*/
DWORD WINAPI DECLSPEC_HOTPATCH GetCompressedFileSizeA( LPCSTR name, LPDWORD size_high )
{
WCHAR *nameW;
if (!(nameW = file_name_AtoW( name, FALSE ))) return INVALID_FILE_SIZE;
return GetCompressedFileSizeW( nameW, size_high );
}
/******************************************************************************
* GetCompressedFileSizeW (kernelbase.@)
*/
DWORD WINAPI DECLSPEC_HOTPATCH GetCompressedFileSizeW( LPCWSTR name, LPDWORD size_high )
{
UNICODE_STRING nt_name;
OBJECT_ATTRIBUTES attr;
IO_STATUS_BLOCK io;
NTSTATUS status;
HANDLE handle;
DWORD ret;
TRACE("%s %p\n", debugstr_w(name), size_high);
if (!RtlDosPathNameToNtPathName_U( name, &nt_name, NULL, NULL ))
{
SetLastError( ERROR_PATH_NOT_FOUND );
return INVALID_FILE_SIZE;
}
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.ObjectName = &nt_name;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
status = NtOpenFile( &handle, SYNCHRONIZE, &attr, &io, 0, FILE_SYNCHRONOUS_IO_NONALERT );
RtlFreeUnicodeString( &nt_name );
if (!set_ntstatus( status )) return INVALID_FILE_SIZE;
/* we don't support compressed files, simply return the file size */
ret = GetFileSize( handle, size_high );
NtClose( handle );
return ret;
}
/**************************************************************************
* GetFileAttributesA (kernelbase.@)
*/
DWORD WINAPI DECLSPEC_HOTPATCH GetFileAttributesA( LPCSTR name )
{
WCHAR *nameW;
if (!(nameW = file_name_AtoW( name, FALSE ))) return INVALID_FILE_ATTRIBUTES;
return GetFileAttributesW( nameW );
}
/**************************************************************************
* GetFileAttributesW (kernelbase.@)
*/
DWORD WINAPI DECLSPEC_HOTPATCH GetFileAttributesW( LPCWSTR name )
{
FILE_BASIC_INFORMATION info;
UNICODE_STRING nt_name;
OBJECT_ATTRIBUTES attr;
NTSTATUS status;
TRACE( "%s\n", debugstr_w(name) );
if (!RtlDosPathNameToNtPathName_U( name, &nt_name, NULL, NULL ))
{
SetLastError( ERROR_PATH_NOT_FOUND );
return INVALID_FILE_ATTRIBUTES;
}
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.ObjectName = &nt_name;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
status = NtQueryAttributesFile( &attr, &info );
RtlFreeUnicodeString( &nt_name );
if (status == STATUS_SUCCESS) return info.FileAttributes;
/* NtQueryAttributesFile fails on devices, but GetFileAttributesW succeeds */
if (RtlIsDosDeviceName_U( name )) return FILE_ATTRIBUTE_ARCHIVE;
SetLastError( RtlNtStatusToDosError(status) );
return INVALID_FILE_ATTRIBUTES;
}
/**************************************************************************
* GetFileAttributesExA (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH GetFileAttributesExA( LPCSTR name, GET_FILEEX_INFO_LEVELS level, void *ptr )
{
WCHAR *nameW;
if (!(nameW = file_name_AtoW( name, FALSE ))) return FALSE;
return GetFileAttributesExW( nameW, level, ptr );
}
/**************************************************************************
* GetFileAttributesExW (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH GetFileAttributesExW( LPCWSTR name, GET_FILEEX_INFO_LEVELS level, void *ptr )
{
FILE_NETWORK_OPEN_INFORMATION info;
WIN32_FILE_ATTRIBUTE_DATA *data = ptr;
UNICODE_STRING nt_name;
OBJECT_ATTRIBUTES attr;
NTSTATUS status;
TRACE("%s %d %p\n", debugstr_w(name), level, ptr);
if (level != GetFileExInfoStandard)
{
SetLastError( ERROR_INVALID_PARAMETER );
return FALSE;
}
if (!RtlDosPathNameToNtPathName_U( name, &nt_name, NULL, NULL ))
{
SetLastError( ERROR_PATH_NOT_FOUND );
return FALSE;
}
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.ObjectName = &nt_name;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
status = NtQueryFullAttributesFile( &attr, &info );
RtlFreeUnicodeString( &nt_name );
if (!set_ntstatus( status )) return FALSE;
data->dwFileAttributes = info.FileAttributes;
data->ftCreationTime.dwLowDateTime = info.CreationTime.u.LowPart;
data->ftCreationTime.dwHighDateTime = info.CreationTime.u.HighPart;
data->ftLastAccessTime.dwLowDateTime = info.LastAccessTime.u.LowPart;
data->ftLastAccessTime.dwHighDateTime = info.LastAccessTime.u.HighPart;
data->ftLastWriteTime.dwLowDateTime = info.LastWriteTime.u.LowPart;
data->ftLastWriteTime.dwHighDateTime = info.LastWriteTime.u.HighPart;
data->nFileSizeLow = info.EndOfFile.u.LowPart;
data->nFileSizeHigh = info.EndOfFile.u.HighPart;
return TRUE;
}
/***********************************************************************
* GetSystemDirectoryA (kernelbase.@)
*/
UINT WINAPI DECLSPEC_HOTPATCH GetSystemDirectoryA( LPSTR path, UINT count )
{
return copy_filename_WtoA( system_dir, path, count );
}
/***********************************************************************
* GetSystemDirectoryW (kernelbase.@)
*/
UINT WINAPI DECLSPEC_HOTPATCH GetSystemDirectoryW( LPWSTR path, UINT count )
{
UINT len = lstrlenW( system_dir ) + 1;
if (path && count >= len)
{
lstrcpyW( path, system_dir );
len--;
}
return len;
}
/***********************************************************************
* GetSystemWindowsDirectoryA (kernelbase.@)
*/
UINT WINAPI DECLSPEC_HOTPATCH GetSystemWindowsDirectoryA( LPSTR path, UINT count )
{
return GetWindowsDirectoryA( path, count );
}
/***********************************************************************
* GetSystemWindowsDirectoryW (kernelbase.@)
*/
UINT WINAPI DECLSPEC_HOTPATCH GetSystemWindowsDirectoryW( LPWSTR path, UINT count )
{
return GetWindowsDirectoryW( path, count );
}
/***********************************************************************
* GetWindowsDirectoryA (kernelbase.@)
*/
UINT WINAPI DECLSPEC_HOTPATCH GetWindowsDirectoryA( LPSTR path, UINT count )
{
return copy_filename_WtoA( windows_dir, path, count );
}
/***********************************************************************
* GetWindowsDirectoryW (kernelbase.@)
*/
UINT WINAPI DECLSPEC_HOTPATCH GetWindowsDirectoryW( LPWSTR path, UINT count )
{
UINT len = lstrlenW( windows_dir ) + 1;
if (path && count >= len)
{
lstrcpyW( path, windows_dir );
len--;
}
return len;
}
/**************************************************************************
* SetFileApisToANSI (kernelbase.@)
*/
void WINAPI DECLSPEC_HOTPATCH SetFileApisToANSI(void)
{
oem_file_apis = FALSE;
}
/**************************************************************************
* SetFileApisToOEM (kernelbase.@)
*/
void WINAPI DECLSPEC_HOTPATCH SetFileApisToOEM(void)
{
oem_file_apis = TRUE;
}
/**************************************************************************
* SetFileAttributesA (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH SetFileAttributesA( LPCSTR name, DWORD attributes )
{
WCHAR *nameW;
if (!(nameW = file_name_AtoW( name, FALSE ))) return FALSE;
return SetFileAttributesW( nameW, attributes );
}
/**************************************************************************
* SetFileAttributesW (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH SetFileAttributesW( LPCWSTR name, DWORD attributes )
{
UNICODE_STRING nt_name;
OBJECT_ATTRIBUTES attr;
IO_STATUS_BLOCK io;
NTSTATUS status;
HANDLE handle;
TRACE( "%s %x\n", debugstr_w(name), attributes );
if (!RtlDosPathNameToNtPathName_U( name, &nt_name, NULL, NULL ))
{
SetLastError( ERROR_PATH_NOT_FOUND );
return FALSE;
}
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.ObjectName = &nt_name;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
status = NtOpenFile( &handle, SYNCHRONIZE, &attr, &io, 0, FILE_SYNCHRONOUS_IO_NONALERT );
RtlFreeUnicodeString( &nt_name );
if (status == STATUS_SUCCESS)
{
FILE_BASIC_INFORMATION info;
memset( &info, 0, sizeof(info) );
info.FileAttributes = attributes | FILE_ATTRIBUTE_NORMAL; /* make sure it's not zero */
status = NtSetInformationFile( handle, &io, &info, sizeof(info), FileBasicInformation );
NtClose( handle );
}
return set_ntstatus( status );
}
/***********************************************************************
* Wow64DisableWow64FsRedirection (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH Wow64DisableWow64FsRedirection( PVOID *old_value )
{
return set_ntstatus( RtlWow64EnableFsRedirectionEx( TRUE, (ULONG *)old_value ));
}
/***********************************************************************
* Wow64RevertWow64FsRedirection (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH Wow64RevertWow64FsRedirection( PVOID old_value )
{
return set_ntstatus( RtlWow64EnableFsRedirection( !old_value ));
}
/***********************************************************************
* Operations on file handles
***********************************************************************/
/***********************************************************************
* CancelIo (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH CancelIo( HANDLE handle )
{
IO_STATUS_BLOCK io;
NtCancelIoFile( handle, &io );
return set_ntstatus( io.u.Status );
}
/***********************************************************************
* CancelIoEx (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH CancelIoEx( HANDLE handle, LPOVERLAPPED overlapped )
{
IO_STATUS_BLOCK io;
NtCancelIoFileEx( handle, (PIO_STATUS_BLOCK)overlapped, &io );
return set_ntstatus( io.u.Status );
}
/***********************************************************************
* CancelSynchronousIo (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH CancelSynchronousIo( HANDLE thread )
{
FIXME( "(%p): stub\n", thread );
SetLastError( ERROR_CALL_NOT_IMPLEMENTED );
return FALSE;
}
/***********************************************************************
* FlushFileBuffers (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH FlushFileBuffers( HANDLE file )
{
IO_STATUS_BLOCK iosb;
/* this will fail (as expected) for an output handle */
if (is_console_handle( file )) return FlushConsoleInputBuffer( file );
return set_ntstatus( NtFlushBuffersFile( file, &iosb ));
}
/***********************************************************************
* GetFileInformationByHandle (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH GetFileInformationByHandle( HANDLE file, BY_HANDLE_FILE_INFORMATION *info )
{
FILE_ALL_INFORMATION all_info;
IO_STATUS_BLOCK io;
NTSTATUS status;
status = NtQueryInformationFile( file, &io, &all_info, sizeof(all_info), FileAllInformation );
if (status == STATUS_BUFFER_OVERFLOW) status = STATUS_SUCCESS;
if (!set_ntstatus( status )) return FALSE;
info->dwFileAttributes = all_info.BasicInformation.FileAttributes;
info->ftCreationTime.dwHighDateTime = all_info.BasicInformation.CreationTime.u.HighPart;
info->ftCreationTime.dwLowDateTime = all_info.BasicInformation.CreationTime.u.LowPart;
info->ftLastAccessTime.dwHighDateTime = all_info.BasicInformation.LastAccessTime.u.HighPart;
info->ftLastAccessTime.dwLowDateTime = all_info.BasicInformation.LastAccessTime.u.LowPart;
info->ftLastWriteTime.dwHighDateTime = all_info.BasicInformation.LastWriteTime.u.HighPart;
info->ftLastWriteTime.dwLowDateTime = all_info.BasicInformation.LastWriteTime.u.LowPart;
info->dwVolumeSerialNumber = 0; /* FIXME */
info->nFileSizeHigh = all_info.StandardInformation.EndOfFile.u.HighPart;
info->nFileSizeLow = all_info.StandardInformation.EndOfFile.u.LowPart;
info->nNumberOfLinks = all_info.StandardInformation.NumberOfLinks;
info->nFileIndexHigh = all_info.InternalInformation.IndexNumber.u.HighPart;
info->nFileIndexLow = all_info.InternalInformation.IndexNumber.u.LowPart;
return TRUE;
}
/***********************************************************************
* GetFileInformationByHandleEx (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH GetFileInformationByHandleEx( HANDLE handle, FILE_INFO_BY_HANDLE_CLASS class,
LPVOID info, DWORD size )
{
NTSTATUS status;
IO_STATUS_BLOCK io;
switch (class)
{
case FileStreamInfo:
case FileCompressionInfo:
case FileAttributeTagInfo:
case FileRemoteProtocolInfo:
case FileFullDirectoryInfo:
case FileFullDirectoryRestartInfo:
case FileStorageInfo:
case FileAlignmentInfo:
case FileIdExtdDirectoryInfo:
case FileIdExtdDirectoryRestartInfo:
FIXME( "%p, %u, %p, %u\n", handle, class, info, size );
SetLastError( ERROR_CALL_NOT_IMPLEMENTED );
return FALSE;
case FileBasicInfo:
status = NtQueryInformationFile( handle, &io, info, size, FileBasicInformation );
break;
case FileStandardInfo:
status = NtQueryInformationFile( handle, &io, info, size, FileStandardInformation );
break;
case FileNameInfo:
status = NtQueryInformationFile( handle, &io, info, size, FileNameInformation );
break;
case FileIdInfo:
status = NtQueryInformationFile( handle, &io, info, size, FileIdInformation );
break;
case FileIdBothDirectoryRestartInfo:
case FileIdBothDirectoryInfo:
status = NtQueryDirectoryFile( handle, NULL, NULL, NULL, &io, info, size,
FileIdBothDirectoryInformation, FALSE, NULL,
(class == FileIdBothDirectoryRestartInfo) );
break;
case FileRenameInfo:
case FileDispositionInfo:
case FileAllocationInfo:
case FileIoPriorityHintInfo:
case FileEndOfFileInfo:
default:
SetLastError( ERROR_INVALID_PARAMETER );
return FALSE;
}
return set_ntstatus( status );
}
/***********************************************************************
* GetFileSize (kernelbase.@)
*/
DWORD WINAPI DECLSPEC_HOTPATCH GetFileSize( HANDLE file, LPDWORD size_high )
{
LARGE_INTEGER size;
if (!GetFileSizeEx( file, &size )) return INVALID_FILE_SIZE;
if (size_high) *size_high = size.u.HighPart;
if (size.u.LowPart == INVALID_FILE_SIZE) SetLastError( 0 );
return size.u.LowPart;
}
/***********************************************************************
* GetFileSizeEx (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH GetFileSizeEx( HANDLE file, PLARGE_INTEGER size )
{
FILE_STANDARD_INFORMATION info;
IO_STATUS_BLOCK io;
if (is_console_handle( file ))
{
SetLastError( ERROR_INVALID_HANDLE );
return FALSE;
}
if (!set_ntstatus( NtQueryInformationFile( file, &io, &info, sizeof(info), FileStandardInformation )))
return FALSE;
*size = info.EndOfFile;
return TRUE;
}
/***********************************************************************
* GetFileTime (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH GetFileTime( HANDLE file, FILETIME *creation,
FILETIME *access, FILETIME *write )
{
FILE_BASIC_INFORMATION info;
IO_STATUS_BLOCK io;
if (!set_ntstatus( NtQueryInformationFile( file, &io, &info, sizeof(info), FileBasicInformation )))
return FALSE;
if (creation)
{
creation->dwHighDateTime = info.CreationTime.u.HighPart;
creation->dwLowDateTime = info.CreationTime.u.LowPart;
}
if (access)
{
access->dwHighDateTime = info.LastAccessTime.u.HighPart;
access->dwLowDateTime = info.LastAccessTime.u.LowPart;
}
if (write)
{
write->dwHighDateTime = info.LastWriteTime.u.HighPart;
write->dwLowDateTime = info.LastWriteTime.u.LowPart;
}
return TRUE;
}
/***********************************************************************
* GetFileType (kernelbase.@)
*/
DWORD WINAPI DECLSPEC_HOTPATCH GetFileType( HANDLE file )
{
FILE_FS_DEVICE_INFORMATION info;
IO_STATUS_BLOCK io;
if (file == (HANDLE)STD_INPUT_HANDLE ||
file == (HANDLE)STD_OUTPUT_HANDLE ||
file == (HANDLE)STD_ERROR_HANDLE)
file = GetStdHandle( (DWORD_PTR)file );
if (is_console_handle( file )) return FILE_TYPE_CHAR;
if (!set_ntstatus( NtQueryVolumeInformationFile( file, &io, &info, sizeof(info),
FileFsDeviceInformation )))
return FILE_TYPE_UNKNOWN;
switch (info.DeviceType)
{
case FILE_DEVICE_NULL:
case FILE_DEVICE_SERIAL_PORT:
case FILE_DEVICE_PARALLEL_PORT:
case FILE_DEVICE_TAPE:
case FILE_DEVICE_UNKNOWN:
return FILE_TYPE_CHAR;
case FILE_DEVICE_NAMED_PIPE:
return FILE_TYPE_PIPE;
default:
return FILE_TYPE_DISK;
}
}
/***********************************************************************
* GetOverlappedResult (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH GetOverlappedResult( HANDLE file, LPOVERLAPPED overlapped,
LPDWORD result, BOOL wait )
{
NTSTATUS status;
TRACE( "(%p %p %p %x)\n", file, overlapped, result, wait );
status = overlapped->Internal;
if (status == STATUS_PENDING)
{
if (!wait)
{
SetLastError( ERROR_IO_INCOMPLETE );
return FALSE;
}
if (WaitForSingleObject( overlapped->hEvent ? overlapped->hEvent : file, INFINITE ) == WAIT_FAILED)
return FALSE;
status = overlapped->Internal;
if (status == STATUS_PENDING) status = STATUS_SUCCESS;
}
*result = overlapped->InternalHigh;
return set_ntstatus( status );
}
/**************************************************************************
* LockFile (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH LockFile( HANDLE file, DWORD offset_low, DWORD offset_high,
DWORD count_low, DWORD count_high )
{
LARGE_INTEGER count, offset;
TRACE( "%p %x%08x %x%08x\n", file, offset_high, offset_low, count_high, count_low );
count.u.LowPart = count_low;
count.u.HighPart = count_high;
offset.u.LowPart = offset_low;
offset.u.HighPart = offset_high;
return set_ntstatus( NtLockFile( file, 0, NULL, NULL, NULL, &offset, &count, NULL, TRUE, TRUE ));
}
/**************************************************************************
* LockFileEx (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH LockFileEx( HANDLE file, DWORD flags, DWORD reserved,
DWORD count_low, DWORD count_high, LPOVERLAPPED overlapped )
{
LARGE_INTEGER count, offset;
LPVOID cvalue = NULL;
if (reserved)
{
SetLastError( ERROR_INVALID_PARAMETER );
return FALSE;
}
TRACE( "%p %x%08x %x%08x flags %x\n",
file, overlapped->u.s.OffsetHigh, overlapped->u.s.Offset, count_high, count_low, flags );
count.u.LowPart = count_low;
count.u.HighPart = count_high;
offset.u.LowPart = overlapped->u.s.Offset;
offset.u.HighPart = overlapped->u.s.OffsetHigh;
if (((ULONG_PTR)overlapped->hEvent & 1) == 0) cvalue = overlapped;
return set_ntstatus( NtLockFile( file, overlapped->hEvent, NULL, cvalue,
NULL, &offset, &count, NULL,
flags & LOCKFILE_FAIL_IMMEDIATELY,
flags & LOCKFILE_EXCLUSIVE_LOCK ));
}
/***********************************************************************
* OpenFileById (kernelbase.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH OpenFileById( HANDLE handle, LPFILE_ID_DESCRIPTOR id, DWORD access,
DWORD share, LPSECURITY_ATTRIBUTES sec_attr, DWORD flags )
{
UINT options;
HANDLE result;
OBJECT_ATTRIBUTES attr;
IO_STATUS_BLOCK io;
UNICODE_STRING objectName;
if (!id)
{
SetLastError( ERROR_INVALID_PARAMETER );
return INVALID_HANDLE_VALUE;
}
options = FILE_OPEN_BY_FILE_ID;
if (flags & FILE_FLAG_BACKUP_SEMANTICS)
options |= FILE_OPEN_FOR_BACKUP_INTENT;
else
options |= FILE_NON_DIRECTORY_FILE;
if (flags & FILE_FLAG_NO_BUFFERING) options |= FILE_NO_INTERMEDIATE_BUFFERING;
if (!(flags & FILE_FLAG_OVERLAPPED)) options |= FILE_SYNCHRONOUS_IO_NONALERT;
if (flags & FILE_FLAG_RANDOM_ACCESS) options |= FILE_RANDOM_ACCESS;
flags &= FILE_ATTRIBUTE_VALID_FLAGS;
objectName.Length = sizeof(ULONGLONG);
objectName.Buffer = (WCHAR *)&id->u.FileId;
attr.Length = sizeof(attr);
attr.RootDirectory = handle;
attr.Attributes = 0;
attr.ObjectName = &objectName;
attr.SecurityDescriptor = sec_attr ? sec_attr->lpSecurityDescriptor : NULL;
attr.SecurityQualityOfService = NULL;
if (sec_attr && sec_attr->bInheritHandle) attr.Attributes |= OBJ_INHERIT;
if (!set_ntstatus( NtCreateFile( &result, access | SYNCHRONIZE, &attr, &io, NULL, flags,
share, OPEN_EXISTING, options, NULL, 0 )))
return INVALID_HANDLE_VALUE;
return result;
}
/***********************************************************************
* ReOpenFile (kernelbase.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH ReOpenFile( HANDLE handle, DWORD access, DWORD sharing, DWORD flags )
{
FIXME( "(%p, %d, %d, %d): stub\n", handle, access, sharing, flags );
return INVALID_HANDLE_VALUE;
}
/***********************************************************************
* ReadFile (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH ReadFile( HANDLE file, LPVOID buffer, DWORD count,
LPDWORD result, LPOVERLAPPED overlapped )
{
LARGE_INTEGER offset;
PLARGE_INTEGER poffset = NULL;
IO_STATUS_BLOCK iosb;
PIO_STATUS_BLOCK io_status = &iosb;
HANDLE event = 0;
NTSTATUS status;
LPVOID cvalue = NULL;
TRACE( "%p %p %d %p %p\n", file, buffer, count, result, overlapped );
if (result) *result = 0;
if (is_console_handle( file ))
{
DWORD conread, mode;
if (!ReadConsoleA( file, buffer, count, &conread, NULL) || !GetConsoleMode( file, &mode ))
return FALSE;
/* ctrl-Z (26) means end of file on window (if at beginning of buffer)
* but Unix uses ctrl-D (4), and ctrl-Z is a bad idea on Unix :-/
* So map both ctrl-D ctrl-Z to EOF.
*/
if ((mode & ENABLE_PROCESSED_INPUT) && conread > 0 &&
(((char *)buffer)[0] == 26 || ((char *)buffer)[0] == 4))
{
conread = 0;
}
if (result) *result = conread;
return TRUE;
}
if (overlapped)
{
offset.u.LowPart = overlapped->u.s.Offset;
offset.u.HighPart = overlapped->u.s.OffsetHigh;
poffset = &offset;
event = overlapped->hEvent;
io_status = (PIO_STATUS_BLOCK)overlapped;
if (((ULONG_PTR)event & 1) == 0) cvalue = overlapped;
}
else io_status->Information = 0;
io_status->u.Status = STATUS_PENDING;
status = NtReadFile( file, event, NULL, cvalue, io_status, buffer, count, poffset, NULL);
if (status == STATUS_PENDING && !overlapped)
{
WaitForSingleObject( file, INFINITE );
status = io_status->u.Status;
}
if (result) *result = overlapped && status ? 0 : io_status->Information;
if (status == STATUS_END_OF_FILE)
{
if (overlapped != NULL)
{
SetLastError( RtlNtStatusToDosError(status) );
return FALSE;
}
}
else if (status && status != STATUS_TIMEOUT)
{
SetLastError( RtlNtStatusToDosError(status) );
return FALSE;
}
return TRUE;
}
/***********************************************************************
* ReadFileEx (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH ReadFileEx( HANDLE file, LPVOID buffer, DWORD count, LPOVERLAPPED overlapped,
LPOVERLAPPED_COMPLETION_ROUTINE completion )
{
PIO_STATUS_BLOCK io;
LARGE_INTEGER offset;
NTSTATUS status;
TRACE( "(file=%p, buffer=%p, bytes=%u, ovl=%p, ovl_fn=%p)\n",
file, buffer, count, overlapped, completion );
if (!overlapped)
{
SetLastError( ERROR_INVALID_PARAMETER );
return FALSE;
}
offset.u.LowPart = overlapped->u.s.Offset;
offset.u.HighPart = overlapped->u.s.OffsetHigh;
io = (PIO_STATUS_BLOCK)overlapped;
io->u.Status = STATUS_PENDING;
io->Information = 0;
status = NtReadFile( file, NULL, read_write_apc, completion, io, buffer, count, &offset, NULL);
if (status == STATUS_PENDING) return TRUE;
return set_ntstatus( status );
}
/***********************************************************************
* ReadFileScatter (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH ReadFileScatter( HANDLE file, FILE_SEGMENT_ELEMENT *segments, DWORD count,
LPDWORD reserved, LPOVERLAPPED overlapped )
{
PIO_STATUS_BLOCK io;
LARGE_INTEGER offset;
void *cvalue = NULL;
TRACE( "(%p %p %u %p)\n", file, segments, count, overlapped );
offset.u.LowPart = overlapped->u.s.Offset;
offset.u.HighPart = overlapped->u.s.OffsetHigh;
if (!((ULONG_PTR)overlapped->hEvent & 1)) cvalue = overlapped;
io = (PIO_STATUS_BLOCK)overlapped;
io->u.Status = STATUS_PENDING;
io->Information = 0;
return set_ntstatus( NtReadFileScatter( file, overlapped->hEvent, NULL, cvalue, io,
segments, count, &offset, NULL ));
}
/**************************************************************************
* SetEndOfFile (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH SetEndOfFile( HANDLE file )
{
FILE_POSITION_INFORMATION pos;
FILE_END_OF_FILE_INFORMATION eof;
IO_STATUS_BLOCK io;
NTSTATUS status;
if (!(status = NtQueryInformationFile( file, &io, &pos, sizeof(pos), FilePositionInformation )))
{
eof.EndOfFile = pos.CurrentByteOffset;
status = NtSetInformationFile( file, &io, &eof, sizeof(eof), FileEndOfFileInformation );
}
return set_ntstatus( status );
}
/***********************************************************************
* SetFileInformationByHandle (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH SetFileInformationByHandle( HANDLE file, FILE_INFO_BY_HANDLE_CLASS class,
void *info, DWORD size )
{
NTSTATUS status;
IO_STATUS_BLOCK io;
TRACE( "%p %u %p %u\n", file, class, info, size );
switch (class)
{
case FileNameInfo:
case FileRenameInfo:
case FileAllocationInfo:
case FileEndOfFileInfo:
case FileStreamInfo:
case FileIdBothDirectoryInfo:
case FileIdBothDirectoryRestartInfo:
case FileFullDirectoryInfo:
case FileFullDirectoryRestartInfo:
case FileStorageInfo:
case FileAlignmentInfo:
case FileIdInfo:
case FileIdExtdDirectoryInfo:
case FileIdExtdDirectoryRestartInfo:
FIXME( "%p, %u, %p, %u\n", file, class, info, size );
SetLastError( ERROR_CALL_NOT_IMPLEMENTED );
return FALSE;
case FileBasicInfo:
status = NtSetInformationFile( file, &io, info, size, FileBasicInformation );
break;
case FileDispositionInfo:
status = NtSetInformationFile( file, &io, info, size, FileDispositionInformation );
break;
case FileIoPriorityHintInfo:
status = NtSetInformationFile( file, &io, info, size, FileIoPriorityHintInformation );
break;
case FileStandardInfo:
case FileCompressionInfo:
case FileAttributeTagInfo:
case FileRemoteProtocolInfo:
default:
SetLastError( ERROR_INVALID_PARAMETER );
return FALSE;
}
return set_ntstatus( status );
}
/***********************************************************************
* SetFilePointer (kernelbase.@)
*/
DWORD WINAPI DECLSPEC_HOTPATCH SetFilePointer( HANDLE file, LONG distance, LONG *highword, DWORD method )
{
LARGE_INTEGER dist, newpos;
if (highword)
{
dist.u.LowPart = distance;
dist.u.HighPart = *highword;
}
else dist.QuadPart = distance;
if (!SetFilePointerEx( file, dist, &newpos, method )) return INVALID_SET_FILE_POINTER;
if (highword) *highword = newpos.u.HighPart;
if (newpos.u.LowPart == INVALID_SET_FILE_POINTER) SetLastError( 0 );
return newpos.u.LowPart;
}
/***********************************************************************
* SetFilePointerEx (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH SetFilePointerEx( HANDLE file, LARGE_INTEGER distance,
LARGE_INTEGER *newpos, DWORD method )
{
LONGLONG pos;
IO_STATUS_BLOCK io;
FILE_POSITION_INFORMATION info;
FILE_END_OF_FILE_INFORMATION eof;
switch(method)
{
case FILE_BEGIN:
pos = distance.QuadPart;
break;
case FILE_CURRENT:
if (NtQueryInformationFile( file, &io, &info, sizeof(info), FilePositionInformation ))
goto error;
pos = info.CurrentByteOffset.QuadPart + distance.QuadPart;
break;
case FILE_END:
if (NtQueryInformationFile( file, &io, &eof, sizeof(eof), FileEndOfFileInformation ))
goto error;
pos = eof.EndOfFile.QuadPart + distance.QuadPart;
break;
default:
SetLastError( ERROR_INVALID_PARAMETER );
return FALSE;
}
if (pos < 0)
{
SetLastError( ERROR_NEGATIVE_SEEK );
return FALSE;
}
info.CurrentByteOffset.QuadPart = pos;
if (!NtSetInformationFile( file, &io, &info, sizeof(info), FilePositionInformation ))
{
if (newpos) newpos->QuadPart = pos;
return TRUE;
}
error:
return set_ntstatus( io.u.Status );
}
/***********************************************************************
* SetFileTime (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH SetFileTime( HANDLE file, const FILETIME *ctime,
const FILETIME *atime, const FILETIME *mtime )
{
FILE_BASIC_INFORMATION info;
IO_STATUS_BLOCK io;
memset( &info, 0, sizeof(info) );
if (ctime)
{
info.CreationTime.u.HighPart = ctime->dwHighDateTime;
info.CreationTime.u.LowPart = ctime->dwLowDateTime;
}
if (atime)
{
info.LastAccessTime.u.HighPart = atime->dwHighDateTime;
info.LastAccessTime.u.LowPart = atime->dwLowDateTime;
}
if (mtime)
{
info.LastWriteTime.u.HighPart = mtime->dwHighDateTime;
info.LastWriteTime.u.LowPart = mtime->dwLowDateTime;
}
return set_ntstatus( NtSetInformationFile( file, &io, &info, sizeof(info), FileBasicInformation ));
}
/***********************************************************************
* SetFileValidData (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH SetFileValidData( HANDLE file, LONGLONG length )
{
FILE_VALID_DATA_LENGTH_INFORMATION info;
IO_STATUS_BLOCK io;
info.ValidDataLength.QuadPart = length;
return set_ntstatus( NtSetInformationFile( file, &io, &info, sizeof(info),
FileValidDataLengthInformation ));
}
/**************************************************************************
* UnlockFile (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH UnlockFile( HANDLE file, DWORD offset_low, DWORD offset_high,
DWORD count_low, DWORD count_high )
{
LARGE_INTEGER count, offset;
count.u.LowPart = count_low;
count.u.HighPart = count_high;
offset.u.LowPart = offset_low;
offset.u.HighPart = offset_high;
return set_ntstatus( NtUnlockFile( file, NULL, &offset, &count, NULL ));
}
/**************************************************************************
* UnlockFileEx (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH UnlockFileEx( HANDLE file, DWORD reserved,
DWORD count_low, DWORD count_high, LPOVERLAPPED overlapped )
{
if (reserved)
{
SetLastError( ERROR_INVALID_PARAMETER );
return FALSE;
}
if (overlapped->hEvent) FIXME("Unimplemented overlapped operation\n");
return UnlockFile( file, overlapped->u.s.Offset, overlapped->u.s.OffsetHigh, count_low, count_high );
}
/***********************************************************************
* WriteFile (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH WriteFile( HANDLE file, LPCVOID buffer, DWORD count,
LPDWORD result, LPOVERLAPPED overlapped )
{
HANDLE event = NULL;
LARGE_INTEGER offset;
PLARGE_INTEGER poffset = NULL;
NTSTATUS status;
IO_STATUS_BLOCK iosb;
PIO_STATUS_BLOCK piosb = &iosb;
LPVOID cvalue = NULL;
TRACE( "%p %p %d %p %p\n", file, buffer, count, result, overlapped );
if (is_console_handle( file )) return WriteConsoleA( file, buffer, count, result, NULL);
if (overlapped)
{
offset.u.LowPart = overlapped->u.s.Offset;
offset.u.HighPart = overlapped->u.s.OffsetHigh;
poffset = &offset;
event = overlapped->hEvent;
piosb = (PIO_STATUS_BLOCK)overlapped;
if (((ULONG_PTR)event & 1) == 0) cvalue = overlapped;
}
else piosb->Information = 0;
piosb->u.Status = STATUS_PENDING;
status = NtWriteFile( file, event, NULL, cvalue, piosb, buffer, count, poffset, NULL );
if (status == STATUS_PENDING && !overlapped)
{
WaitForSingleObject( file, INFINITE );
status = piosb->u.Status;
}
if (result) *result = overlapped && status ? 0 : piosb->Information;
if (status && status != STATUS_TIMEOUT)
{
SetLastError( RtlNtStatusToDosError(status) );
return FALSE;
}
return TRUE;
}
/***********************************************************************
* WriteFileEx (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH WriteFileEx( HANDLE file, LPCVOID buffer,
DWORD count, LPOVERLAPPED overlapped,
LPOVERLAPPED_COMPLETION_ROUTINE completion )
{
LARGE_INTEGER offset;
NTSTATUS status;
PIO_STATUS_BLOCK io;
TRACE( "%p %p %d %p %p\n", file, buffer, count, overlapped, completion );
if (!overlapped)
{
SetLastError( ERROR_INVALID_PARAMETER );
return FALSE;
}
offset.u.LowPart = overlapped->u.s.Offset;
offset.u.HighPart = overlapped->u.s.OffsetHigh;
io = (PIO_STATUS_BLOCK)overlapped;
io->u.Status = STATUS_PENDING;
io->Information = 0;
status = NtWriteFile( file, NULL, read_write_apc, completion, io, buffer, count, &offset, NULL );
if (status == STATUS_PENDING) return TRUE;
return set_ntstatus( status );
}
/***********************************************************************
* WriteFileGather (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH WriteFileGather( HANDLE file, FILE_SEGMENT_ELEMENT *segments, DWORD count,
LPDWORD reserved, LPOVERLAPPED overlapped )
{
PIO_STATUS_BLOCK io;
LARGE_INTEGER offset;
void *cvalue = NULL;
TRACE( "%p %p %u %p\n", file, segments, count, overlapped );
offset.u.LowPart = overlapped->u.s.Offset;
offset.u.HighPart = overlapped->u.s.OffsetHigh;
if (!((ULONG_PTR)overlapped->hEvent & 1)) cvalue = overlapped;
io = (PIO_STATUS_BLOCK)overlapped;
io->u.Status = STATUS_PENDING;
io->Information = 0;
return set_ntstatus( NtWriteFileGather( file, overlapped->hEvent, NULL, cvalue,
io, segments, count, &offset, NULL ));
}