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wine/dlls/ntdll/file.c
Alexandre Julliard 2bcef9e1fb Don't use lseek when truncating a file to avoid corrupting the current 
file position.
2004-06-17 23:05:48 +00:00

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53 KiB
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/*
* Copyright 1999, 2000 Juergen Schmied
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include "wine/port.h"
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <errno.h>
#include <assert.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef HAVE_SYS_ERRNO_H
#include <sys/errno.h>
#endif
#ifdef HAVE_LINUX_MAJOR_H
# include <linux/major.h>
#endif
#ifdef HAVE_SYS_STATVFS_H
# include <sys/statvfs.h>
#endif
#ifdef HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
#ifdef HAVE_UTIME_H
# include <utime.h>
#endif
#ifdef STATFS_DEFINED_BY_SYS_VFS
# include <sys/vfs.h>
#else
# ifdef STATFS_DEFINED_BY_SYS_MOUNT
# include <sys/mount.h>
# else
# ifdef STATFS_DEFINED_BY_SYS_STATFS
# include <sys/statfs.h>
# endif
# endif
#endif
#define NONAMELESSUNION
#define NONAMELESSSTRUCT
#include "wine/unicode.h"
#include "wine/debug.h"
#include "wine/server.h"
#include "async.h"
#include "ntdll_misc.h"
#include "winternl.h"
#include "winioctl.h"
WINE_DEFAULT_DEBUG_CHANNEL(ntdll);
mode_t FILE_umask = 0;
#define SECSPERDAY 86400
#define SECS_1601_TO_1970 ((369 * 365 + 89) * (ULONGLONG)SECSPERDAY)
/**************************************************************************
* NtOpenFile [NTDLL.@]
* ZwOpenFile [NTDLL.@]
*
* Open a file.
*
* PARAMS
* handle [O] Variable that receives the file handle on return
* access [I] Access desired by the caller to the file
* attr [I] Structue describing the file to be opened
* io [O] Receives details about the result of the operation
* sharing [I] Type of shared access the caller requires
* options [I] Options for the file open
*
* RETURNS
* Success: 0. FileHandle and IoStatusBlock are updated.
* Failure: An NTSTATUS error code describing the error.
*/
NTSTATUS WINAPI NtOpenFile( PHANDLE handle, ACCESS_MASK access,
POBJECT_ATTRIBUTES attr, PIO_STATUS_BLOCK io,
ULONG sharing, ULONG options )
{
return NtCreateFile( handle, access, attr, io, NULL, 0,
sharing, FILE_OPEN, options, NULL, 0 );
}
/**************************************************************************
* NtCreateFile [NTDLL.@]
* ZwCreateFile [NTDLL.@]
*
* Either create a new file or directory, or open an existing file, device,
* directory or volume.
*
* PARAMS
* handle [O] Points to a variable which receives the file handle on return
* access [I] Desired access to the file
* attr [I] Structure describing the file
* io [O] Receives information about the operation on return
* alloc_size [I] Initial size of the file in bytes
* attributes [I] Attributes to create the file with
* sharing [I] Type of shared access the caller would like to the file
* disposition [I] Specifies what to do, depending on whether the file already exists
* options [I] Options for creating a new file
* ea_buffer [I] Undocumented
* ea_length [I] Undocumented
*
* RETURNS
* Success: 0. handle and io are updated.
* Failure: An NTSTATUS error code describing the error.
*/
NTSTATUS WINAPI NtCreateFile( PHANDLE handle, ACCESS_MASK access, POBJECT_ATTRIBUTES attr,
PIO_STATUS_BLOCK io, PLARGE_INTEGER alloc_size,
ULONG attributes, ULONG sharing, ULONG disposition,
ULONG options, PVOID ea_buffer, ULONG ea_length )
{
static const WCHAR pipeW[] = {'\\','?','?','\\','p','i','p','e','\\'};
ANSI_STRING unix_name;
int created = FALSE;
TRACE("handle=%p access=%08lx name=%s objattr=%08lx root=%p sec=%p io=%p alloc_size=%p\n"
"attr=%08lx sharing=%08lx disp=%ld options=%08lx ea=%p.0x%08lx\n",
handle, access, debugstr_us(attr->ObjectName), attr->Attributes,
attr->RootDirectory, attr->SecurityDescriptor, io, alloc_size,
attributes, sharing, disposition, options, ea_buffer, ea_length );
if (attr->RootDirectory)
{
FIXME( "RootDirectory %p not supported\n", attr->RootDirectory );
return STATUS_OBJECT_NAME_NOT_FOUND;
}
if (alloc_size) FIXME( "alloc_size not supported\n" );
/* check for named pipe */
if (attr->ObjectName->Length > sizeof(pipeW) &&
!memicmpW( attr->ObjectName->Buffer, pipeW, sizeof(pipeW)/sizeof(WCHAR) ))
{
SERVER_START_REQ( open_named_pipe )
{
req->access = access;
req->inherit = (attr->Attributes & OBJ_INHERIT) != 0;
wine_server_add_data( req, attr->ObjectName->Buffer + 4,
attr->ObjectName->Length - 4*sizeof(WCHAR) );
io->u.Status = wine_server_call( req );
*handle = reply->handle;
}
SERVER_END_REQ;
return io->u.Status;
}
io->u.Status = wine_nt_to_unix_file_name( attr->ObjectName, &unix_name, disposition,
!(attr->Attributes & OBJ_CASE_INSENSITIVE) );
if (io->u.Status == STATUS_NO_SUCH_FILE &&
disposition != FILE_OPEN && disposition != FILE_OVERWRITE)
{
created = TRUE;
io->u.Status = STATUS_SUCCESS;
}
if (io->u.Status == STATUS_SUCCESS)
{
SERVER_START_REQ( create_file )
{
req->access = access;
req->inherit = (attr->Attributes & OBJ_INHERIT) != 0;
req->sharing = sharing;
req->create = disposition;
req->options = options;
req->attrs = attributes;
wine_server_add_data( req, unix_name.Buffer, unix_name.Length );
io->u.Status = wine_server_call( req );
*handle = reply->handle;
}
SERVER_END_REQ;
RtlFreeAnsiString( &unix_name );
}
else WARN("%s not found (%lx)\n", debugstr_us(attr->ObjectName), io->u.Status );
if (io->u.Status == STATUS_SUCCESS)
{
if (created) io->Information = FILE_CREATED;
else switch(disposition)
{
case FILE_SUPERSEDE:
io->Information = FILE_SUPERSEDED;
break;
case FILE_CREATE:
io->Information = FILE_CREATED;
break;
case FILE_OPEN:
case FILE_OPEN_IF:
io->Information = FILE_OPENED;
break;
case FILE_OVERWRITE:
case FILE_OVERWRITE_IF:
io->Information = FILE_OVERWRITTEN;
break;
}
}
return io->u.Status;
}
/***********************************************************************
* Asynchronous file I/O *
*/
static DWORD fileio_get_async_count(const async_private *ovp);
static void CALLBACK fileio_call_completion_func(ULONG_PTR data);
static void fileio_async_cleanup(async_private *ovp);
static async_ops fileio_async_ops =
{
fileio_get_async_count, /* get_count */
fileio_call_completion_func, /* call_completion */
fileio_async_cleanup /* cleanup */
};
static async_ops fileio_nocomp_async_ops =
{
fileio_get_async_count, /* get_count */
NULL, /* call_completion */
fileio_async_cleanup /* cleanup */
};
typedef struct async_fileio
{
struct async_private async;
PIO_APC_ROUTINE apc;
void* apc_user;
char *buffer;
unsigned int count;
unsigned long offset;
enum fd_type fd_type;
} async_fileio;
static DWORD fileio_get_async_count(const struct async_private *ovp)
{
async_fileio *fileio = (async_fileio*) ovp;
if (fileio->count < fileio->async.iosb->Information)
return 0;
return fileio->count - fileio->async.iosb->Information;
}
static void CALLBACK fileio_call_completion_func(ULONG_PTR data)
{
async_fileio *ovp = (async_fileio*) data;
TRACE("data: %p\n", ovp);
ovp->apc( ovp->apc_user, ovp->async.iosb, ovp->async.iosb->Information );
fileio_async_cleanup( &ovp->async );
}
static void fileio_async_cleanup( struct async_private *ovp )
{
RtlFreeHeap( GetProcessHeap(), 0, ovp );
}
/***********************************************************************
* FILE_GetNtStatus(void)
*
* Retrieve the Nt Status code from errno.
* Try to be consistent with FILE_SetDosError().
*/
NTSTATUS FILE_GetNtStatus(void)
{
int err = errno;
TRACE( "errno = %d\n", errno );
switch (err)
{
case EAGAIN: return STATUS_SHARING_VIOLATION;
case EBADF: return STATUS_INVALID_HANDLE;
case ENOSPC: return STATUS_DISK_FULL;
case EPERM:
case EROFS:
case EACCES: return STATUS_ACCESS_DENIED;
case ENOTDIR: return STATUS_OBJECT_PATH_NOT_FOUND;
case ENOENT: return STATUS_OBJECT_NAME_NOT_FOUND;
case EISDIR: return STATUS_FILE_IS_A_DIRECTORY;
case EMFILE:
case ENFILE: return STATUS_TOO_MANY_OPENED_FILES;
case EINVAL: return STATUS_INVALID_PARAMETER;
case ENOTEMPTY: return STATUS_DIRECTORY_NOT_EMPTY;
case EPIPE: return STATUS_PIPE_BROKEN;
case EIO: return STATUS_DEVICE_NOT_READY;
#ifdef ENOMEDIUM
case ENOMEDIUM: return STATUS_NO_MEDIA_IN_DEVICE;
#endif
case ENOTTY:
case EOPNOTSUPP:return STATUS_NOT_SUPPORTED;
case ENOEXEC: /* ?? */
case ESPIPE: /* ?? */
case EEXIST: /* ?? */
default:
FIXME( "Converting errno %d to STATUS_UNSUCCESSFUL\n", err );
return STATUS_UNSUCCESSFUL;
}
}
/***********************************************************************
* FILE_AsyncReadService (INTERNAL)
*
* This function is called while the client is waiting on the
* server, so we can't make any server calls here.
*/
static void FILE_AsyncReadService(async_private *ovp)
{
async_fileio *fileio = (async_fileio*) ovp;
IO_STATUS_BLOCK* io_status = fileio->async.iosb;
int result;
int already = io_status->Information;
TRACE("%p %p\n", io_status, fileio->buffer );
/* check to see if the data is ready (non-blocking) */
if ( fileio->fd_type == FD_TYPE_SOCKET )
result = read(ovp->fd, &fileio->buffer[already], fileio->count - already);
else
{
result = pread(ovp->fd, &fileio->buffer[already], fileio->count - already,
fileio->offset + already);
if ((result < 0) && (errno == ESPIPE))
result = read(ovp->fd, &fileio->buffer[already], fileio->count - already);
}
if ((result < 0) && ((errno == EAGAIN) || (errno == EINTR)))
{
TRACE("Deferred read %d\n",errno);
io_status->u.Status = STATUS_PENDING;
return;
}
/* check to see if the transfer is complete */
if (result < 0)
{
io_status->u.Status = FILE_GetNtStatus();
return;
}
else if (result == 0)
{
io_status->u.Status = io_status->Information ? STATUS_SUCCESS : STATUS_END_OF_FILE;
return;
}
io_status->Information += result;
if (io_status->Information >= fileio->count || fileio->fd_type == FD_TYPE_SOCKET )
io_status->u.Status = STATUS_SUCCESS;
else
io_status->u.Status = STATUS_PENDING;
TRACE("read %d more bytes %ld/%d so far\n",
result, io_status->Information, fileio->count);
}
/******************************************************************************
* NtReadFile [NTDLL.@]
* ZwReadFile [NTDLL.@]
*
* Read from an open file handle.
*
* PARAMS
* FileHandle [I] Handle returned from ZwOpenFile() or ZwCreateFile()
* Event [I] Event to signal upon completion (or NULL)
* ApcRoutine [I] Callback to call upon completion (or NULL)
* ApcContext [I] Context for ApcRoutine (or NULL)
* IoStatusBlock [O] Receives information about the operation on return
* Buffer [O] Destination for the data read
* Length [I] Size of Buffer
* ByteOffset [O] Destination for the new file pointer position (or NULL)
* Key [O] Function unknown (may be NULL)
*
* RETURNS
* Success: 0. IoStatusBlock is updated, and the Information member contains
* The number of bytes read.
* Failure: An NTSTATUS error code describing the error.
*/
NTSTATUS WINAPI NtReadFile(HANDLE hFile, HANDLE hEvent,
PIO_APC_ROUTINE apc, void* apc_user,
PIO_STATUS_BLOCK io_status, void* buffer, ULONG length,
PLARGE_INTEGER offset, PULONG key)
{
int unix_handle, flags;
enum fd_type type;
TRACE("(%p,%p,%p,%p,%p,%p,0x%08lx,%p,%p),partial stub!\n",
hFile,hEvent,apc,apc_user,io_status,buffer,length,offset,key);
io_status->Information = 0;
io_status->u.Status = wine_server_handle_to_fd( hFile, GENERIC_READ, &unix_handle, &type, &flags );
if (io_status->u.Status) return io_status->u.Status;
if (flags & FD_FLAG_RECV_SHUTDOWN)
{
wine_server_release_fd( hFile, unix_handle );
return STATUS_PIPE_DISCONNECTED;
}
if (flags & FD_FLAG_TIMEOUT)
{
if (hEvent)
{
/* this shouldn't happen, but check it */
FIXME("NIY-hEvent\n");
wine_server_release_fd( hFile, unix_handle );
return STATUS_NOT_IMPLEMENTED;
}
io_status->u.Status = NtCreateEvent(&hEvent, SYNCHRONIZE, NULL, 0, 0);
if (io_status->u.Status)
{
wine_server_release_fd( hFile, unix_handle );
return io_status->u.Status;
}
}
if (flags & (FD_FLAG_OVERLAPPED|FD_FLAG_TIMEOUT))
{
async_fileio* ovp;
NTSTATUS ret;
if (!(ovp = RtlAllocateHeap(GetProcessHeap(), 0, sizeof(async_fileio))))
{
wine_server_release_fd( hFile, unix_handle );
return STATUS_NO_MEMORY;
}
ovp->async.ops = (apc ? &fileio_async_ops : &fileio_nocomp_async_ops );
ovp->async.handle = hFile;
ovp->async.fd = unix_handle; /* FIXME */
ovp->async.type = ASYNC_TYPE_READ;
ovp->async.func = FILE_AsyncReadService;
ovp->async.event = hEvent;
ovp->async.iosb = io_status;
ovp->count = length;
if ( offset == NULL )
ovp->offset = 0;
else
{
ovp->offset = offset->u.LowPart;
if (offset->u.HighPart) FIXME("NIY-high part\n");
}
ovp->apc = apc;
ovp->apc_user = apc_user;
ovp->buffer = buffer;
ovp->fd_type = type;
io_status->Information = 0;
ret = register_new_async(&ovp->async);
if (ret != STATUS_SUCCESS)
return ret;
if (flags & FD_FLAG_TIMEOUT)
{
NtWaitForSingleObject(hEvent, TRUE, NULL);
NtClose(hEvent);
}
else
{
LARGE_INTEGER timeout;
/* let some APC be run, this will read some already pending data */
timeout.u.LowPart = timeout.u.HighPart = 0;
NtDelayExecution( TRUE, &timeout );
}
return io_status->u.Status;
}
if (offset)
{
FILE_POSITION_INFORMATION fpi;
fpi.CurrentByteOffset = *offset;
io_status->u.Status = NtSetInformationFile(hFile, io_status, &fpi, sizeof(fpi),
FilePositionInformation);
if (io_status->u.Status)
{
wine_server_release_fd( hFile, unix_handle );
return io_status->u.Status;
}
}
/* code for synchronous reads */
while ((io_status->Information = read( unix_handle, buffer, length )) == -1)
{
if ((errno == EAGAIN) || (errno == EINTR)) continue;
if (errno == EFAULT) FIXME( "EFAULT handling broken for now\n" );
io_status->u.Status = FILE_GetNtStatus();
break;
}
wine_server_release_fd( hFile, unix_handle );
return io_status->u.Status;
}
/***********************************************************************
* FILE_AsyncWriteService (INTERNAL)
*
* This function is called while the client is waiting on the
* server, so we can't make any server calls here.
*/
static void FILE_AsyncWriteService(struct async_private *ovp)
{
async_fileio *fileio = (async_fileio *) ovp;
PIO_STATUS_BLOCK io_status = fileio->async.iosb;
int result;
int already = io_status->Information;
TRACE("(%p %p)\n",io_status,fileio->buffer);
/* write some data (non-blocking) */
if ( fileio->fd_type == FD_TYPE_SOCKET )
result = write(ovp->fd, &fileio->buffer[already], fileio->count - already);
else
{
result = pwrite(ovp->fd, &fileio->buffer[already], fileio->count - already,
fileio->offset + already);
if ((result < 0) && (errno == ESPIPE))
result = write(ovp->fd, &fileio->buffer[already], fileio->count - already);
}
if ((result < 0) && ((errno == EAGAIN) || (errno == EINTR)))
{
io_status->u.Status = STATUS_PENDING;
return;
}
/* check to see if the transfer is complete */
if (result < 0)
{
io_status->u.Status = FILE_GetNtStatus();
return;
}
io_status->Information += result;
io_status->u.Status = (io_status->Information < fileio->count) ? STATUS_PENDING : STATUS_SUCCESS;
TRACE("wrote %d more bytes %ld/%d so far\n",result,io_status->Information,fileio->count);
}
/******************************************************************************
* NtWriteFile [NTDLL.@]
* ZwWriteFile [NTDLL.@]
*
* Write to an open file handle.
*
* PARAMS
* FileHandle [I] Handle returned from ZwOpenFile() or ZwCreateFile()
* Event [I] Event to signal upon completion (or NULL)
* ApcRoutine [I] Callback to call upon completion (or NULL)
* ApcContext [I] Context for ApcRoutine (or NULL)
* IoStatusBlock [O] Receives information about the operation on return
* Buffer [I] Source for the data to write
* Length [I] Size of Buffer
* ByteOffset [O] Destination for the new file pointer position (or NULL)
* Key [O] Function unknown (may be NULL)
*
* RETURNS
* Success: 0. IoStatusBlock is updated, and the Information member contains
* The number of bytes written.
* Failure: An NTSTATUS error code describing the error.
*/
NTSTATUS WINAPI NtWriteFile(HANDLE hFile, HANDLE hEvent,
PIO_APC_ROUTINE apc, void* apc_user,
PIO_STATUS_BLOCK io_status,
const void* buffer, ULONG length,
PLARGE_INTEGER offset, PULONG key)
{
int unix_handle, flags;
enum fd_type type;
TRACE("(%p,%p,%p,%p,%p,%p,0x%08lx,%p,%p)!\n",
hFile,hEvent,apc,apc_user,io_status,buffer,length,offset,key);
TRACE("(%p,%p,%p,%p,%p,%p,0x%08lx,%p,%p),partial stub!\n",
hFile,hEvent,apc,apc_user,io_status,buffer,length,offset,key);
io_status->Information = 0;
io_status->u.Status = wine_server_handle_to_fd( hFile, GENERIC_WRITE, &unix_handle, &type, &flags );
if (io_status->u.Status) return io_status->u.Status;
if (flags & FD_FLAG_SEND_SHUTDOWN)
{
wine_server_release_fd( hFile, unix_handle );
return STATUS_PIPE_DISCONNECTED;
}
if (flags & (FD_FLAG_OVERLAPPED|FD_FLAG_TIMEOUT))
{
async_fileio* ovp;
NTSTATUS ret;
if (!(ovp = RtlAllocateHeap(GetProcessHeap(), 0, sizeof(async_fileio))))
{
wine_server_release_fd( hFile, unix_handle );
return STATUS_NO_MEMORY;
}
ovp->async.ops = (apc ? &fileio_async_ops : &fileio_nocomp_async_ops );
ovp->async.handle = hFile;
ovp->async.fd = unix_handle; /* FIXME */
ovp->async.type = ASYNC_TYPE_WRITE;
ovp->async.func = FILE_AsyncWriteService;
ovp->async.event = hEvent;
ovp->async.iosb = io_status;
ovp->count = length;
if (offset) {
ovp->offset = offset->u.LowPart;
if (offset->u.HighPart) FIXME("NIY-high part\n");
} else {
ovp->offset = 0;
}
ovp->apc = apc;
ovp->apc_user = apc_user;
ovp->buffer = (void*)buffer;
ovp->fd_type = type;
io_status->Information = 0;
ret = register_new_async(&ovp->async);
if (ret != STATUS_SUCCESS)
return ret;
if (flags & FD_FLAG_TIMEOUT)
{
NtWaitForSingleObject(hEvent, TRUE, NULL);
NtClose(hEvent);
}
else
{
LARGE_INTEGER timeout;
/* let some APC be run, this will write as much data as possible */
timeout.u.LowPart = timeout.u.HighPart = 0;
NtDelayExecution( TRUE, &timeout );
}
return io_status->u.Status;
}
if (offset)
{
FILE_POSITION_INFORMATION fpi;
fpi.CurrentByteOffset = *offset;
io_status->u.Status = NtSetInformationFile(hFile, io_status, &fpi, sizeof(fpi),
FilePositionInformation);
if (io_status->u.Status)
{
wine_server_release_fd( hFile, unix_handle );
return io_status->u.Status;
}
}
/* synchronous file write */
while ((io_status->Information = write( unix_handle, buffer, length )) == -1)
{
if ((errno == EAGAIN) || (errno == EINTR)) continue;
if (errno == EFAULT) FIXME( "EFAULT handling broken for now\n" );
if (errno == ENOSPC) io_status->u.Status = STATUS_DISK_FULL;
else io_status->u.Status = FILE_GetNtStatus();
break;
}
wine_server_release_fd( hFile, unix_handle );
return io_status->u.Status;
}
/**************************************************************************
* NtDeviceIoControlFile [NTDLL.@]
* ZwDeviceIoControlFile [NTDLL.@]
*
* Perform an I/O control operation on an open file handle.
*
* PARAMS
* DeviceHandle [I] Handle returned from ZwOpenFile() or ZwCreateFile()
* Event [I] Event to signal upon completion (or NULL)
* ApcRoutine [I] Callback to call upon completion (or NULL)
* ApcContext [I] Context for ApcRoutine (or NULL)
* IoStatusBlock [O] Receives information about the operation on return
* IoControlCode [I] Control code for the operation to perform
* InputBuffer [I] Source for any input data required (or NULL)
* InputBufferSize [I] Size of InputBuffer
* OutputBuffer [O] Source for any output data returned (or NULL)
* OutputBufferSize [I] Size of OutputBuffer
*
* RETURNS
* Success: 0. IoStatusBlock is updated.
* Failure: An NTSTATUS error code describing the error.
*/
NTSTATUS WINAPI NtDeviceIoControlFile(HANDLE DeviceHandle, HANDLE hEvent,
PIO_APC_ROUTINE UserApcRoutine,
PVOID UserApcContext,
PIO_STATUS_BLOCK IoStatusBlock,
ULONG IoControlCode,
PVOID InputBuffer,
ULONG InputBufferSize,
PVOID OutputBuffer,
ULONG OutputBufferSize)
{
TRACE("(%p,%p,%p,%p,%p,0x%08lx,%p,0x%08lx,%p,0x%08lx)\n",
DeviceHandle, hEvent, UserApcRoutine, UserApcContext,
IoStatusBlock, IoControlCode,
InputBuffer, InputBufferSize, OutputBuffer, OutputBufferSize);
if (CDROM_DeviceIoControl(DeviceHandle, hEvent,
UserApcRoutine, UserApcContext,
IoStatusBlock, IoControlCode,
InputBuffer, InputBufferSize,
OutputBuffer, OutputBufferSize) == STATUS_NO_SUCH_DEVICE)
{
/* it wasn't a CDROM */
FIXME("Unimplemented dwIoControlCode=%08lx\n", IoControlCode);
IoStatusBlock->u.Status = STATUS_NOT_IMPLEMENTED;
IoStatusBlock->Information = 0;
if (hEvent) NtSetEvent(hEvent, NULL);
}
return IoStatusBlock->u.Status;
}
/******************************************************************************
* NtFsControlFile [NTDLL.@]
* ZwFsControlFile [NTDLL.@]
*/
NTSTATUS WINAPI NtFsControlFile(
IN HANDLE DeviceHandle,
IN HANDLE Event OPTIONAL,
IN PIO_APC_ROUTINE ApcRoutine OPTIONAL,
IN PVOID ApcContext OPTIONAL,
OUT PIO_STATUS_BLOCK IoStatusBlock,
IN ULONG IoControlCode,
IN PVOID InputBuffer,
IN ULONG InputBufferSize,
OUT PVOID OutputBuffer,
IN ULONG OutputBufferSize)
{
FIXME("(%p,%p,%p,%p,%p,0x%08lx,%p,0x%08lx,%p,0x%08lx): stub\n",
DeviceHandle,Event,ApcRoutine,ApcContext,IoStatusBlock,IoControlCode,
InputBuffer,InputBufferSize,OutputBuffer,OutputBufferSize);
return 0;
}
/******************************************************************************
* NtSetVolumeInformationFile [NTDLL.@]
* ZwSetVolumeInformationFile [NTDLL.@]
*
* Set volume information for an open file handle.
*
* PARAMS
* FileHandle [I] Handle returned from ZwOpenFile() or ZwCreateFile()
* IoStatusBlock [O] Receives information about the operation on return
* FsInformation [I] Source for volume information
* Length [I] Size of FsInformation
* FsInformationClass [I] Type of volume information to set
*
* RETURNS
* Success: 0. IoStatusBlock is updated.
* Failure: An NTSTATUS error code describing the error.
*/
NTSTATUS WINAPI NtSetVolumeInformationFile(
IN HANDLE FileHandle,
PIO_STATUS_BLOCK IoStatusBlock,
PVOID FsInformation,
ULONG Length,
FS_INFORMATION_CLASS FsInformationClass)
{
FIXME("(%p,%p,%p,0x%08lx,0x%08x) stub\n",
FileHandle,IoStatusBlock,FsInformation,Length,FsInformationClass);
return 0;
}
/******************************************************************************
* NtQueryInformationFile [NTDLL.@]
* ZwQueryInformationFile [NTDLL.@]
*
* Get information about an open file handle.
*
* PARAMS
* hFile [I] Handle returned from ZwOpenFile() or ZwCreateFile()
* io [O] Receives information about the operation on return
* ptr [O] Destination for file information
* len [I] Size of FileInformation
* class [I] Type of file information to get
*
* RETURNS
* Success: 0. IoStatusBlock and FileInformation are updated.
* Failure: An NTSTATUS error code describing the error.
*/
NTSTATUS WINAPI NtQueryInformationFile( HANDLE hFile, PIO_STATUS_BLOCK io,
PVOID ptr, LONG len, FILE_INFORMATION_CLASS class )
{
static const size_t info_sizes[] =
{
0,
sizeof(FILE_DIRECTORY_INFORMATION), /* FileDirectoryInformation */
sizeof(FILE_FULL_DIRECTORY_INFORMATION), /* FileFullDirectoryInformation */
sizeof(FILE_BOTH_DIRECTORY_INFORMATION), /* FileBothDirectoryInformation */
sizeof(FILE_BASIC_INFORMATION), /* FileBasicInformation */
sizeof(FILE_STANDARD_INFORMATION), /* FileStandardInformation */
sizeof(FILE_INTERNAL_INFORMATION), /* FileInternalInformation */
sizeof(FILE_EA_INFORMATION), /* FileEaInformation */
sizeof(FILE_ACCESS_INFORMATION), /* FileAccessInformation */
sizeof(FILE_NAME_INFORMATION)-sizeof(WCHAR), /* FileNameInformation */
sizeof(FILE_RENAME_INFORMATION)-sizeof(WCHAR), /* FileRenameInformation */
0, /* FileLinkInformation */
sizeof(FILE_NAMES_INFORMATION)-sizeof(WCHAR), /* FileNamesInformation */
sizeof(FILE_DISPOSITION_INFORMATION), /* FileDispositionInformation */
sizeof(FILE_POSITION_INFORMATION), /* FilePositionInformation */
sizeof(FILE_FULL_EA_INFORMATION), /* FileFullEaInformation */
sizeof(FILE_MODE_INFORMATION), /* FileModeInformation */
sizeof(FILE_ALIGNMENT_INFORMATION), /* FileAlignmentInformation */
sizeof(FILE_ALL_INFORMATION)-sizeof(WCHAR), /* FileAllInformation */
sizeof(FILE_ALLOCATION_INFORMATION), /* FileAllocationInformation */
sizeof(FILE_END_OF_FILE_INFORMATION), /* FileEndOfFileInformation */
0, /* FileAlternateNameInformation */
sizeof(FILE_STREAM_INFORMATION)-sizeof(WCHAR), /* FileStreamInformation */
0, /* FilePipeInformation */
0, /* FilePipeLocalInformation */
0, /* FilePipeRemoteInformation */
0, /* FileMailslotQueryInformation */
0, /* FileMailslotSetInformation */
0, /* FileCompressionInformation */
0, /* FileObjectIdInformation */
0, /* FileCompletionInformation */
0, /* FileMoveClusterInformation */
0, /* FileQuotaInformation */
0, /* FileReparsePointInformation */
0, /* FileNetworkOpenInformation */
0, /* FileAttributeTagInformation */
0 /* FileTrackingInformation */
};
struct stat st;
int fd;
TRACE("(%p,%p,%p,0x%08lx,0x%08x)\n", hFile, io, ptr, len, class);
io->Information = 0;
if (class <= 0 || class >= FileMaximumInformation)
return io->u.Status = STATUS_INVALID_INFO_CLASS;
if (!info_sizes[class])
{
FIXME("Unsupported class (%d)\n", class);
return io->u.Status = STATUS_NOT_IMPLEMENTED;
}
if (len < info_sizes[class])
return io->u.Status = STATUS_INFO_LENGTH_MISMATCH;
if ((io->u.Status = wine_server_handle_to_fd( hFile, 0, &fd, NULL, NULL )))
return io->u.Status;
switch (class)
{
case FileBasicInformation:
{
FILE_BASIC_INFORMATION *info = ptr;
if (fstat( fd, &st ) == -1)
io->u.Status = FILE_GetNtStatus();
else if (!S_ISREG(st.st_mode) && !S_ISDIR(st.st_mode))
io->u.Status = STATUS_INVALID_INFO_CLASS;
else
{
if (S_ISDIR(st.st_mode)) info->FileAttributes = FILE_ATTRIBUTE_DIRECTORY;
else info->FileAttributes = FILE_ATTRIBUTE_ARCHIVE;
if (!(st.st_mode & S_IWUSR)) info->FileAttributes |= FILE_ATTRIBUTE_READONLY;
RtlSecondsSince1970ToTime( st.st_mtime, &info->CreationTime);
RtlSecondsSince1970ToTime( st.st_mtime, &info->LastWriteTime);
RtlSecondsSince1970ToTime( st.st_ctime, &info->ChangeTime);
RtlSecondsSince1970ToTime( st.st_atime, &info->LastAccessTime);
}
}
break;
case FileStandardInformation:
{
FILE_STANDARD_INFORMATION *info = ptr;
if (fstat( fd, &st ) == -1) io->u.Status = FILE_GetNtStatus();
else
{
if ((info->Directory = S_ISDIR(st.st_mode)))
{
info->AllocationSize.QuadPart = 0;
info->EndOfFile.QuadPart = 0;
info->NumberOfLinks = 1;
info->DeletePending = FALSE;
}
else
{
info->AllocationSize.QuadPart = (ULONGLONG)st.st_blocks * 512;
info->EndOfFile.QuadPart = st.st_size;
info->NumberOfLinks = st.st_nlink;
info->DeletePending = FALSE; /* FIXME */
}
}
}
break;
case FilePositionInformation:
{
FILE_POSITION_INFORMATION *info = ptr;
off_t res = lseek( fd, 0, SEEK_CUR );
if (res == (off_t)-1) io->u.Status = FILE_GetNtStatus();
else info->CurrentByteOffset.QuadPart = res;
}
break;
case FileInternalInformation:
{
FILE_INTERNAL_INFORMATION *info = ptr;
if (fstat( fd, &st ) == -1) io->u.Status = FILE_GetNtStatus();
else info->IndexNumber.QuadPart = st.st_ino;
}
break;
case FileEaInformation:
{
FILE_EA_INFORMATION *info = ptr;
info->EaSize = 0;
}
break;
case FileEndOfFileInformation:
{
FILE_END_OF_FILE_INFORMATION *info = ptr;
if (fstat( fd, &st ) == -1) io->u.Status = FILE_GetNtStatus();
else info->EndOfFile.QuadPart = S_ISDIR(st.st_mode) ? 0 : st.st_size;
}
break;
case FileAllInformation:
{
FILE_ALL_INFORMATION *info = ptr;
if (fstat( fd, &st ) == -1) io->u.Status = FILE_GetNtStatus();
else if (!S_ISREG(st.st_mode) && !S_ISDIR(st.st_mode))
io->u.Status = STATUS_INVALID_INFO_CLASS;
else
{
if ((info->StandardInformation.Directory = S_ISDIR(st.st_mode)))
{
info->BasicInformation.FileAttributes = FILE_ATTRIBUTE_DIRECTORY;
info->StandardInformation.AllocationSize.QuadPart = 0;
info->StandardInformation.EndOfFile.QuadPart = 0;
info->StandardInformation.NumberOfLinks = 1;
info->StandardInformation.DeletePending = FALSE;
}
else
{
info->BasicInformation.FileAttributes = FILE_ATTRIBUTE_ARCHIVE;
info->StandardInformation.AllocationSize.QuadPart = (ULONGLONG)st.st_blocks * 512;
info->StandardInformation.EndOfFile.QuadPart = st.st_size;
info->StandardInformation.NumberOfLinks = st.st_nlink;
info->StandardInformation.DeletePending = FALSE; /* FIXME */
}
if (!(st.st_mode & S_IWUSR))
info->BasicInformation.FileAttributes |= FILE_ATTRIBUTE_READONLY;
RtlSecondsSince1970ToTime( st.st_mtime, &info->BasicInformation.CreationTime);
RtlSecondsSince1970ToTime( st.st_mtime, &info->BasicInformation.LastWriteTime);
RtlSecondsSince1970ToTime( st.st_ctime, &info->BasicInformation.ChangeTime);
RtlSecondsSince1970ToTime( st.st_atime, &info->BasicInformation.LastAccessTime);
info->InternalInformation.IndexNumber.QuadPart = st.st_ino;
info->EaInformation.EaSize = 0;
info->AccessInformation.AccessFlags = 0; /* FIXME */
info->PositionInformation.CurrentByteOffset.QuadPart = lseek( fd, 0, SEEK_CUR );
info->ModeInformation.Mode = 0; /* FIXME */
info->AlignmentInformation.AlignmentRequirement = 1; /* FIXME */
info->NameInformation.FileNameLength = 0;
io->Information = sizeof(*info) - sizeof(WCHAR);
}
}
break;
default:
FIXME("Unsupported class (%d)\n", class);
io->u.Status = STATUS_NOT_IMPLEMENTED;
break;
}
wine_server_release_fd( hFile, fd );
if (io->u.Status == STATUS_SUCCESS && !io->Information) io->Information = info_sizes[class];
return io->u.Status;
}
/******************************************************************************
* NtSetInformationFile [NTDLL.@]
* ZwSetInformationFile [NTDLL.@]
*
* Set information about an open file handle.
*
* PARAMS
* handle [I] Handle returned from ZwOpenFile() or ZwCreateFile()
* io [O] Receives information about the operation on return
* ptr [I] Source for file information
* len [I] Size of FileInformation
* class [I] Type of file information to set
*
* RETURNS
* Success: 0. io is updated.
* Failure: An NTSTATUS error code describing the error.
*/
NTSTATUS WINAPI NtSetInformationFile(HANDLE handle, PIO_STATUS_BLOCK io,
PVOID ptr, ULONG len, FILE_INFORMATION_CLASS class)
{
int fd;
TRACE("(%p,%p,%p,0x%08lx,0x%08x)\n", handle, io, ptr, len, class);
if ((io->u.Status = wine_server_handle_to_fd( handle, 0, &fd, NULL, NULL )))
return io->u.Status;
io->u.Status = STATUS_SUCCESS;
switch (class)
{
case FileBasicInformation:
if (len >= sizeof(FILE_BASIC_INFORMATION))
{
struct stat st;
const FILE_BASIC_INFORMATION *info = ptr;
#ifdef HAVE_FUTIMES
if (info->LastAccessTime.QuadPart || info->LastWriteTime.QuadPart)
{
ULONGLONG sec, nsec;
struct timeval tv[2];
if (!info->LastAccessTime.QuadPart || !info->LastWriteTime.QuadPart)
{
tv[0].tv_sec = tv[0].tv_usec = 0;
tv[1].tv_sec = tv[1].tv_usec = 0;
if (!fstat( fd, &st ))
{
tv[0].tv_sec = st.st_atime;
tv[1].tv_sec = st.st_mtime;
}
}
if (info->LastAccessTime.QuadPart)
{
sec = RtlLargeIntegerDivide( info->LastAccessTime.QuadPart, 10000000, &nsec );
tv[0].tv_sec = sec - SECS_1601_TO_1970;
tv[0].tv_usec = (UINT)nsec / 10;
}
if (info->LastWriteTime.QuadPart)
{
sec = RtlLargeIntegerDivide( info->LastWriteTime.QuadPart, 10000000, &nsec );
tv[1].tv_sec = sec - SECS_1601_TO_1970;
tv[1].tv_usec = (UINT)nsec / 10;
}
if (futimes( fd, tv ) == -1) io->u.Status = FILE_GetNtStatus();
}
#endif /* HAVE_FUTIMES */
if (io->u.Status == STATUS_SUCCESS && info->FileAttributes)
{
if (fstat( fd, &st ) == -1) io->u.Status = FILE_GetNtStatus();
else
{
if (info->FileAttributes & FILE_ATTRIBUTE_READONLY)
{
st.st_mode &= ~0222; /* clear write permission bits */
}
else
{
/* add write permission only where we already have read permission */
st.st_mode |= (0600 | ((st.st_mode & 044) >> 1)) & (~FILE_umask);
}
if (fchmod( fd, st.st_mode ) == -1) io->u.Status = FILE_GetNtStatus();
}
}
}
else io->u.Status = STATUS_INVALID_PARAMETER_3;
break;
case FilePositionInformation:
if (len >= sizeof(FILE_POSITION_INFORMATION))
{
const FILE_POSITION_INFORMATION *info = ptr;
if (lseek( fd, info->CurrentByteOffset.QuadPart, SEEK_SET ) == (off_t)-1)
io->u.Status = FILE_GetNtStatus();
}
else io->u.Status = STATUS_INVALID_PARAMETER_3;
break;
case FileEndOfFileInformation:
if (len >= sizeof(FILE_END_OF_FILE_INFORMATION))
{
struct stat st;
const FILE_END_OF_FILE_INFORMATION *info = ptr;
/* first try normal truncate */
if (ftruncate( fd, (off_t)info->EndOfFile.QuadPart ) != -1) break;
/* now check for the need to extend the file */
if (fstat( fd, &st ) != -1 && (off_t)info->EndOfFile.QuadPart > st.st_size)
{
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 &&
ftruncate( fd, (off_t)info->EndOfFile.QuadPart ) != -1) break;
}
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;
break;
}
wine_server_release_fd( handle, fd );
io->Information = 0;
return io->u.Status;
}
/******************************************************************************
* NtQueryFullAttributesFile (NTDLL.@)
*/
NTSTATUS WINAPI NtQueryFullAttributesFile( const OBJECT_ATTRIBUTES *attr,
FILE_NETWORK_OPEN_INFORMATION *info )
{
ANSI_STRING unix_name;
NTSTATUS status;
if (!(status = wine_nt_to_unix_file_name( attr->ObjectName, &unix_name, FILE_OPEN,
!(attr->Attributes & OBJ_CASE_INSENSITIVE) )))
{
struct stat st;
if (stat( unix_name.Buffer, &st ) == -1)
status = FILE_GetNtStatus();
else if (!S_ISREG(st.st_mode) && !S_ISDIR(st.st_mode))
status = STATUS_INVALID_INFO_CLASS;
else
{
if (S_ISDIR(st.st_mode))
{
info->FileAttributes = FILE_ATTRIBUTE_DIRECTORY;
info->AllocationSize.QuadPart = 0;
info->EndOfFile.QuadPart = 0;
}
else
{
info->FileAttributes = FILE_ATTRIBUTE_ARCHIVE;
info->AllocationSize.QuadPart = (ULONGLONG)st.st_blocks * 512;
info->EndOfFile.QuadPart = st.st_size;
}
if (!(st.st_mode & S_IWUSR)) info->FileAttributes |= FILE_ATTRIBUTE_READONLY;
RtlSecondsSince1970ToTime( st.st_mtime, &info->CreationTime );
RtlSecondsSince1970ToTime( st.st_mtime, &info->LastWriteTime );
RtlSecondsSince1970ToTime( st.st_ctime, &info->ChangeTime );
RtlSecondsSince1970ToTime( st.st_atime, &info->LastAccessTime );
if (DIR_is_hidden_file( attr->ObjectName ))
info->FileAttributes |= FILE_ATTRIBUTE_HIDDEN;
}
RtlFreeAnsiString( &unix_name );
}
else WARN("%s not found (%lx)\n", debugstr_us(attr->ObjectName), status );
return status;
}
/******************************************************************************
* NtQueryAttributesFile (NTDLL.@)
* ZwQueryAttributesFile (NTDLL.@)
*/
NTSTATUS WINAPI NtQueryAttributesFile( const OBJECT_ATTRIBUTES *attr, FILE_BASIC_INFORMATION *info )
{
FILE_NETWORK_OPEN_INFORMATION full_info;
NTSTATUS status;
if (!(status = NtQueryFullAttributesFile( attr, &full_info )))
{
info->CreationTime.QuadPart = full_info.CreationTime.QuadPart;
info->LastAccessTime.QuadPart = full_info.LastAccessTime.QuadPart;
info->LastWriteTime.QuadPart = full_info.LastWriteTime.QuadPart;
info->ChangeTime.QuadPart = full_info.ChangeTime.QuadPart;
info->FileAttributes = full_info.FileAttributes;
}
return status;
}
/******************************************************************************
* NtQueryVolumeInformationFile [NTDLL.@]
* ZwQueryVolumeInformationFile [NTDLL.@]
*
* Get volume information for an open file handle.
*
* PARAMS
* handle [I] Handle returned from ZwOpenFile() or ZwCreateFile()
* io [O] Receives information about the operation on return
* buffer [O] Destination for volume information
* length [I] Size of FsInformation
* info_class [I] Type of volume information to set
*
* RETURNS
* Success: 0. io and buffer are updated.
* Failure: An NTSTATUS error code describing the error.
*/
NTSTATUS WINAPI NtQueryVolumeInformationFile( HANDLE handle, PIO_STATUS_BLOCK io,
PVOID buffer, ULONG length,
FS_INFORMATION_CLASS info_class )
{
int fd;
struct stat st;
if ((io->u.Status = wine_server_handle_to_fd( handle, 0, &fd, NULL, NULL )) != STATUS_SUCCESS)
return io->u.Status;
io->u.Status = STATUS_NOT_IMPLEMENTED;
io->Information = 0;
switch( info_class )
{
case FileFsVolumeInformation:
FIXME( "%p: volume info not supported\n", handle );
break;
case FileFsLabelInformation:
FIXME( "%p: label info not supported\n", handle );
break;
case FileFsSizeInformation:
if (length < sizeof(FILE_FS_SIZE_INFORMATION))
io->u.Status = STATUS_BUFFER_TOO_SMALL;
else
{
FILE_FS_SIZE_INFORMATION *info = buffer;
struct statvfs stvfs;
if (fstat( fd, &st ) < 0)
{
io->u.Status = FILE_GetNtStatus();
break;
}
if (!S_ISREG(st.st_mode) && !S_ISDIR(st.st_mode))
{
io->u.Status = STATUS_INVALID_DEVICE_REQUEST;
break;
}
if (fstatvfs( fd, &stvfs ) < 0) io->u.Status = FILE_GetNtStatus();
else
{
info->TotalAllocationUnits.QuadPart = stvfs.f_blocks;
info->AvailableAllocationUnits.QuadPart = stvfs.f_bavail;
info->SectorsPerAllocationUnit = 1;
info->BytesPerSector = stvfs.f_frsize;
io->Information = sizeof(*info);
io->u.Status = STATUS_SUCCESS;
}
}
break;
case FileFsDeviceInformation:
if (length < sizeof(FILE_FS_DEVICE_INFORMATION))
io->u.Status = STATUS_BUFFER_TOO_SMALL;
else
{
FILE_FS_DEVICE_INFORMATION *info = buffer;
info->Characteristics = 0;
if (fstat( fd, &st ) < 0)
{
io->u.Status = FILE_GetNtStatus();
break;
}
if (S_ISCHR( st.st_mode ))
{
info->DeviceType = FILE_DEVICE_UNKNOWN;
#ifdef linux
switch(major(st.st_rdev))
{
case MEM_MAJOR:
info->DeviceType = FILE_DEVICE_NULL;
break;
case TTY_MAJOR:
info->DeviceType = FILE_DEVICE_SERIAL_PORT;
break;
case LP_MAJOR:
info->DeviceType = FILE_DEVICE_PARALLEL_PORT;
break;
}
#endif
}
else if (S_ISBLK( st.st_mode ))
{
info->DeviceType = FILE_DEVICE_DISK;
}
else if (S_ISFIFO( st.st_mode ) || S_ISSOCK( st.st_mode ))
{
info->DeviceType = FILE_DEVICE_NAMED_PIPE;
}
else /* regular file or directory */
{
#if defined(linux) && defined(HAVE_FSTATFS)
struct statfs stfs;
/* check for floppy disk */
if (major(st.st_dev) == FLOPPY_MAJOR)
info->Characteristics |= FILE_REMOVABLE_MEDIA;
if (fstatfs( fd, &stfs ) < 0) stfs.f_type = 0;
switch (stfs.f_type)
{
case 0x9660: /* iso9660 */
case 0x15013346: /* udf */
info->DeviceType = FILE_DEVICE_CD_ROM_FILE_SYSTEM;
info->Characteristics |= FILE_REMOVABLE_MEDIA|FILE_READ_ONLY_DEVICE;
break;
case 0x6969: /* nfs */
case 0x517B: /* smbfs */
case 0x564c: /* ncpfs */
info->DeviceType = FILE_DEVICE_NETWORK_FILE_SYSTEM;
info->Characteristics |= FILE_REMOTE_DEVICE;
break;
case 0x01021994: /* tmpfs */
case 0x28cd3d45: /* cramfs */
case 0x1373: /* devfs */
case 0x9fa0: /* procfs */
info->DeviceType = FILE_DEVICE_VIRTUAL_DISK;
break;
default:
info->DeviceType = FILE_DEVICE_DISK_FILE_SYSTEM;
break;
}
#else
static int warned;
if (!warned++) FIXME( "device info not properly supported on this platform\n" );
info->DeviceType = FILE_DEVICE_DISK_FILE_SYSTEM;
#endif
info->Characteristics |= FILE_DEVICE_IS_MOUNTED;
}
io->Information = sizeof(*info);
io->u.Status = STATUS_SUCCESS;
}
break;
case FileFsAttributeInformation:
FIXME( "%p: attribute info not supported\n", handle );
break;
case FileFsControlInformation:
FIXME( "%p: control info not supported\n", handle );
break;
case FileFsFullSizeInformation:
FIXME( "%p: full size info not supported\n", handle );
break;
case FileFsObjectIdInformation:
FIXME( "%p: object id info not supported\n", handle );
break;
case FileFsMaximumInformation:
FIXME( "%p: maximum info not supported\n", handle );
break;
default:
io->u.Status = STATUS_INVALID_PARAMETER;
break;
}
wine_server_release_fd( handle, fd );
return io->u.Status;
}
/******************************************************************
* NtFlushBuffersFile (NTDLL.@)
*
* Flush any buffered data on an open file handle.
*
* PARAMS
* FileHandle [I] Handle returned from ZwOpenFile() or ZwCreateFile()
* IoStatusBlock [O] Receives information about the operation on return
*
* RETURNS
* Success: 0. IoStatusBlock is updated.
* Failure: An NTSTATUS error code describing the error.
*/
NTSTATUS WINAPI NtFlushBuffersFile( HANDLE hFile, IO_STATUS_BLOCK* IoStatusBlock )
{
NTSTATUS ret;
HANDLE hEvent = NULL;
SERVER_START_REQ( flush_file )
{
req->handle = hFile;
ret = wine_server_call( req );
hEvent = reply->event;
}
SERVER_END_REQ;
if (!ret && hEvent)
{
ret = NtWaitForSingleObject( hEvent, FALSE, NULL );
NtClose( hEvent );
}
return ret;
}
/******************************************************************
* NtLockFile (NTDLL.@)
*
*
*/
NTSTATUS WINAPI NtLockFile( HANDLE hFile, HANDLE lock_granted_event,
PIO_APC_ROUTINE apc, void* apc_user,
PIO_STATUS_BLOCK io_status, PLARGE_INTEGER offset,
PLARGE_INTEGER count, ULONG* key, BOOLEAN dont_wait,
BOOLEAN exclusive )
{
NTSTATUS ret;
HANDLE handle;
BOOLEAN async;
if (apc || io_status || key)
{
FIXME("Unimplemented yet parameter\n");
return STATUS_NOT_IMPLEMENTED;
}
for (;;)
{
SERVER_START_REQ( lock_file )
{
req->handle = hFile;
req->offset_low = offset->u.LowPart;
req->offset_high = offset->u.HighPart;
req->count_low = count->u.LowPart;
req->count_high = count->u.HighPart;
req->shared = !exclusive;
req->wait = !dont_wait;
ret = wine_server_call( req );
handle = reply->handle;
async = reply->overlapped;
}
SERVER_END_REQ;
if (ret != STATUS_PENDING)
{
if (!ret && lock_granted_event) NtSetEvent(lock_granted_event, NULL);
return ret;
}
if (async)
{
FIXME( "Async I/O lock wait not implemented, might deadlock\n" );
if (handle) NtClose( handle );
return STATUS_PENDING;
}
if (handle)
{
NtWaitForSingleObject( handle, FALSE, NULL );
NtClose( handle );
}
else
{
LARGE_INTEGER time;
/* Unix lock conflict, sleep a bit and retry */
time.QuadPart = 100 * (ULONGLONG)10000;
time.QuadPart = -time.QuadPart;
NtDelayExecution( FALSE, &time );
}
}
}
/******************************************************************
* NtUnlockFile (NTDLL.@)
*
*
*/
NTSTATUS WINAPI NtUnlockFile( HANDLE hFile, PIO_STATUS_BLOCK io_status,
PLARGE_INTEGER offset, PLARGE_INTEGER count,
PULONG key )
{
NTSTATUS status;
TRACE( "%p %lx%08lx %lx%08lx\n",
hFile, offset->u.HighPart, offset->u.LowPart, count->u.HighPart, count->u.LowPart );
if (io_status || key)
{
FIXME("Unimplemented yet parameter\n");
return STATUS_NOT_IMPLEMENTED;
}
SERVER_START_REQ( unlock_file )
{
req->handle = hFile;
req->offset_low = offset->u.LowPart;
req->offset_high = offset->u.HighPart;
req->count_low = count->u.LowPart;
req->count_high = count->u.HighPart;
status = wine_server_call( req );
}
SERVER_END_REQ;
return status;
}
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