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Reimplemented GetFileType and SetEndOfFile using ntdll functions.

This commit is contained in:
Alexandre Julliard 2004-05-01 02:44:00 +00:00
parent 25dd29c80b
commit b592cbbc18
3 changed files with 90 additions and 66 deletions
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62
dlls/kernel/file.c
View File

@ -2,7 +2,7 @@
* File handling functions
*
* Copyright 1993 John Burton
* Copyright 1996 Alexandre Julliard
* Copyright 1996, 2004 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@ -17,10 +17,6 @@
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* TODO:
* Fix the CopyFileEx methods to implement the "extended" functionality.
* Right now, they simply call the CopyFile method.
*/
#include "config.h"
@ -36,6 +32,7 @@
#include "winbase.h"
#include "winreg.h"
#include "winternl.h"
#include "winioctl.h"
#include "wincon.h"
#include "wine/winbase16.h"
#include "kernel_private.h"
@ -330,6 +327,39 @@ BOOL WINAPI FlushFileBuffers( HANDLE hFile )
}
/***********************************************************************
* GetFileType (KERNEL32.@)
*/
DWORD WINAPI GetFileType( HANDLE hFile )
{
FILE_FS_DEVICE_INFORMATION info;
IO_STATUS_BLOCK io;
NTSTATUS status;
if (is_console_handle( hFile )) return FILE_TYPE_CHAR;
status = NtQueryVolumeInformationFile( hFile, &io, &info, sizeof(info), FileFsDeviceInformation );
if (status != STATUS_SUCCESS)
{
SetLastError( RtlNtStatusToDosError(status) );
return FILE_TYPE_UNKNOWN;
}
switch(info.DeviceType)
{
case FILE_DEVICE_NULL:
case FILE_DEVICE_SERIAL_PORT:
case FILE_DEVICE_PARALLEL_PORT:
case FILE_DEVICE_UNKNOWN:
return FILE_TYPE_CHAR;
case FILE_DEVICE_NAMED_PIPE:
return FILE_TYPE_PIPE;
default:
return FILE_TYPE_DISK;
}
}
/***********************************************************************
* GetFileInformationByHandle (KERNEL32.@)
*/
@ -395,6 +425,28 @@ BOOL WINAPI GetFileSizeEx( HANDLE hFile, PLARGE_INTEGER lpFileSize )
}
/**************************************************************************
* SetEndOfFile (KERNEL32.@)
*/
BOOL WINAPI SetEndOfFile( HANDLE hFile )
{
FILE_POSITION_INFORMATION pos;
FILE_END_OF_FILE_INFORMATION eof;
IO_STATUS_BLOCK io;
NTSTATUS status;
status = NtQueryInformationFile( hFile, &io, &pos, sizeof(pos), FilePositionInformation );
if (status == STATUS_SUCCESS)
{
eof.EndOfFile = pos.CurrentByteOffset;
status = NtSetInformationFile( hFile, &io, &eof, sizeof(eof), FileEndOfFileInformation );
}
if (status == STATUS_SUCCESS) return TRUE;
SetLastError( RtlNtStatusToDosError(status) );
return FALSE;
}
/***********************************************************************
* GetFileTime (KERNEL32.@)
*/

42
dlls/ntdll/file.c
View File

@ -1124,6 +1124,29 @@ NTSTATUS WINAPI NtSetInformationFile(HANDLE handle, PIO_STATUS_BLOCK io,
else io->u.Status = STATUS_INVALID_PARAMETER_3;
break;
case FileEndOfFileInformation:
if (len >= sizeof(FILE_END_OF_FILE_INFORMATION))
{
const FILE_END_OF_FILE_INFORMATION *info = ptr;
if (info->EndOfFile.QuadPart > lseek( fd, 0, SEEK_END ))
{
static const char zero;
/* extend the file one byte beyond the requested size and then truncate it */
/* this should work around ftruncate implementations that can't extend files */
if (pwrite( fd, &zero, 1, (off_t)info->EndOfFile.QuadPart ) == -1)
{
io->u.Status = FILE_GetNtStatus();
break;
}
}
if (ftruncate( fd, (off_t)info->EndOfFile.QuadPart ) == -1)
io->u.Status = FILE_GetNtStatus();
}
else io->u.Status = STATUS_INVALID_PARAMETER_3;
break;
default:
FIXME("Unsupported class (%d)\n", class);
io->u.Status = STATUS_NOT_IMPLEMENTED;
@ -1278,11 +1301,7 @@ NTSTATUS WINAPI NtQueryVolumeInformationFile( HANDLE handle, PIO_STATUS_BLOCK io
{
FILE_FS_DEVICE_INFORMATION *info = buffer;
#if defined(linux) && defined(HAVE_FSTATFS)
struct statfs stfs;
info->Characteristics = 0;
if (fstat( fd, &st ) < 0)
{
io->u.Status = FILE_GetNtStatus();
@ -1290,6 +1309,8 @@ NTSTATUS WINAPI NtQueryVolumeInformationFile( HANDLE handle, PIO_STATUS_BLOCK io
}
if (S_ISCHR( st.st_mode ))
{
info->DeviceType = FILE_DEVICE_UNKNOWN;
#ifdef linux
switch(major(st.st_rdev))
{
case MEM_MAJOR:
@ -1301,10 +1322,8 @@ NTSTATUS WINAPI NtQueryVolumeInformationFile( HANDLE handle, PIO_STATUS_BLOCK io
case LP_MAJOR:
info->DeviceType = FILE_DEVICE_PARALLEL_PORT;
break;
default:
info->DeviceType = FILE_DEVICE_UNKNOWN;
break;
}
#endif
}
else if (S_ISBLK( st.st_mode ))
{
@ -1316,7 +1335,8 @@ NTSTATUS WINAPI NtQueryVolumeInformationFile( HANDLE handle, PIO_STATUS_BLOCK io
}
else /* regular file or directory */
{
info->Characteristics |= FILE_DEVICE_IS_MOUNTED;
#if defined(linux) && defined(HAVE_FSTATFS)
struct statfs stfs;
/* check for floppy disk */
if (major(st.st_dev) == FLOPPY_MAJOR)
@ -1346,13 +1366,13 @@ NTSTATUS WINAPI NtQueryVolumeInformationFile( HANDLE handle, PIO_STATUS_BLOCK io
info->DeviceType = FILE_DEVICE_DISK_FILE_SYSTEM;
break;
}
}
#else
static int warned;
if (!warned++) FIXME( "device info not supported on this platform\n" );
if (!warned++) FIXME( "device info not properly supported on this platform\n" );
info->DeviceType = FILE_DEVICE_DISK_FILE_SYSTEM;
info->Characteristics = 0;
#endif
info->Characteristics |= FILE_DEVICE_IS_MOUNTED;
}
io->Information = sizeof(*info);
io->u.Status = STATUS_SUCCESS;
}

48
files/file.c
View File

@ -718,54 +718,6 @@ UINT WINAPI SetHandleCount( UINT count )
}
/**************************************************************************
* SetEndOfFile (KERNEL32.@)
*/
BOOL WINAPI SetEndOfFile( HANDLE hFile )
{
BOOL ret;
SERVER_START_REQ( truncate_file )
{
req->handle = hFile;
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
return ret;
}
/***********************************************************************
* GetFileType (KERNEL32.@)
*/
DWORD WINAPI GetFileType( HANDLE hFile )
{
NTSTATUS status;
int fd;
DWORD ret = FILE_TYPE_UNKNOWN;
if (is_console_handle( hFile ))
return FILE_TYPE_CHAR;
if (!(status = wine_server_handle_to_fd( hFile, 0, &fd, NULL, NULL )))
{
struct stat st;
if (fstat( fd, &st ) == -1)
FILE_SetDosError();
else if (S_ISFIFO(st.st_mode) || S_ISSOCK(st.st_mode))
ret = FILE_TYPE_PIPE;
else if (S_ISCHR(st.st_mode))
ret = FILE_TYPE_CHAR;
else
ret = FILE_TYPE_DISK;
wine_server_release_fd( hFile, fd );
}
else SetLastError( RtlNtStatusToDosError(status) );
return ret;
}
/**************************************************************************
* CopyFileW (KERNEL32.@)
*/