ReceiveTempSMS
/
Sweden-Number
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
Sweden-Number/dlls/kernel/file.c

1343 lines
41 KiB
C
Raw Blame History

/*
* File handling functions
*
* Copyright 1993 John Burton
* Copyright 1996 Alexandre Julliard
*
* 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
*
* TODO:
* Fix the CopyFileEx methods to implement the "extended" functionality.
* Right now, they simply call the CopyFile method.
*/
#include "config.h"
#include "wine/port.h"
#include <stdarg.h>
#define NONAMELESSUNION
#define NONAMELESSSTRUCT
#include "winerror.h"
#include "ntstatus.h"
#include "windef.h"
#include "winbase.h"
#include "winreg.h"
#include "winternl.h"
#include "wincon.h"
#include "wine/winbase16.h"
#include "kernel_private.h"
#include "wine/exception.h"
#include "excpt.h"
#include "wine/unicode.h"
#include "wine/debug.h"
#include "async.h"
WINE_DEFAULT_DEBUG_CHANNEL(file);
HANDLE dos_handles[DOS_TABLE_SIZE];
/* info structure for FindFirstFile handle */
typedef struct
{
HANDLE handle; /* handle to directory */
CRITICAL_SECTION cs; /* crit section protecting this structure */
UNICODE_STRING mask; /* file mask */
BOOL is_root; /* is directory the root of the drive? */
UINT data_pos; /* current position in dir data */
UINT data_len; /* length of dir data */
BYTE data[8192]; /* directory data */
} FIND_FIRST_INFO;
static WINE_EXCEPTION_FILTER(page_fault)
{
if (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION)
return EXCEPTION_EXECUTE_HANDLER;
return EXCEPTION_CONTINUE_SEARCH;
}
/**************************************************************************
* Operations on file handles *
**************************************************************************/
/***********************************************************************
* FILE_InitProcessDosHandles
*
* Allocates the default DOS handles for a process. Called either by
* Win32HandleToDosFileHandle below or by the DOSVM stuff.
*/
static void FILE_InitProcessDosHandles( void )
{
static BOOL init_done /* = FALSE */;
HANDLE cp = GetCurrentProcess();
if (init_done) return;
init_done = TRUE;
DuplicateHandle(cp, GetStdHandle(STD_INPUT_HANDLE), cp, &dos_handles[0],
0, TRUE, DUPLICATE_SAME_ACCESS);
DuplicateHandle(cp, GetStdHandle(STD_OUTPUT_HANDLE), cp, &dos_handles[1],
0, TRUE, DUPLICATE_SAME_ACCESS);
DuplicateHandle(cp, GetStdHandle(STD_ERROR_HANDLE), cp, &dos_handles[2],
0, TRUE, DUPLICATE_SAME_ACCESS);
DuplicateHandle(cp, GetStdHandle(STD_ERROR_HANDLE), cp, &dos_handles[3],
0, TRUE, DUPLICATE_SAME_ACCESS);
DuplicateHandle(cp, GetStdHandle(STD_ERROR_HANDLE), cp, &dos_handles[4],
0, TRUE, DUPLICATE_SAME_ACCESS);
}
/***********************************************************************
* GetOverlappedResult (KERNEL32.@)
*
* Check the result of an Asynchronous data transfer from a file.
*
* Parameters
* HANDLE hFile [in] handle of file to check on
* LPOVERLAPPED lpOverlapped [in/out] pointer to overlapped
* LPDWORD lpTransferred [in/out] number of bytes transferred
* BOOL bWait [in] wait for the transfer to complete ?
*
* RETURNS
* TRUE on success
* FALSE on failure
*
* If successful (and relevant) lpTransferred will hold the number of
* bytes transferred during the async operation.
*
* BUGS
*
* Currently only works for WaitCommEvent, ReadFile, WriteFile
* with communications ports.
*
*/
BOOL WINAPI GetOverlappedResult(HANDLE hFile, LPOVERLAPPED lpOverlapped,
LPDWORD lpTransferred, BOOL bWait)
{
DWORD r;
TRACE("(%p %p %p %x)\n", hFile, lpOverlapped, lpTransferred, bWait);
if (lpOverlapped==NULL)
{
ERR("lpOverlapped was null\n");
return FALSE;
}
if (!lpOverlapped->hEvent)
{
ERR("lpOverlapped->hEvent was null\n");
return FALSE;
}
if ( bWait )
{
do {
TRACE("waiting on %p\n",lpOverlapped);
r = WaitForSingleObjectEx(lpOverlapped->hEvent, INFINITE, TRUE);
TRACE("wait on %p returned %ld\n",lpOverlapped,r);
} while (r==STATUS_USER_APC);
}
else if ( lpOverlapped->Internal == STATUS_PENDING )
{
/* Wait in order to give APCs a chance to run. */
/* This is cheating, so we must set the event again in case of success -
it may be a non-manual reset event. */
do {
TRACE("waiting on %p\n",lpOverlapped);
r = WaitForSingleObjectEx(lpOverlapped->hEvent, 0, TRUE);
TRACE("wait on %p returned %ld\n",lpOverlapped,r);
} while (r==STATUS_USER_APC);
if ( r == WAIT_OBJECT_0 )
NtSetEvent ( lpOverlapped->hEvent, NULL );
}
if(lpTransferred)
*lpTransferred = lpOverlapped->InternalHigh;
switch ( lpOverlapped->Internal )
{
case STATUS_SUCCESS:
return TRUE;
case STATUS_PENDING:
SetLastError ( ERROR_IO_INCOMPLETE );
if ( bWait ) ERR ("PENDING status after waiting!\n");
return FALSE;
default:
SetLastError ( RtlNtStatusToDosError ( lpOverlapped->Internal ) );
return FALSE;
}
}
/***********************************************************************
* CancelIo (KERNEL32.@)
*/
BOOL WINAPI CancelIo(HANDLE handle)
{
async_private *ovp,*t;
TRACE("handle = %p\n",handle);
for (ovp = NtCurrentTeb()->pending_list; ovp; ovp = t)
{
t = ovp->next;
if ( ovp->handle == handle )
cancel_async ( ovp );
}
SleepEx(1,TRUE);
return TRUE;
}
/***********************************************************************
* _hread (KERNEL32.@)
*/
LONG WINAPI _hread( HFILE hFile, LPVOID buffer, LONG count)
{
return _lread( hFile, buffer, count );
}
/***********************************************************************
* _hwrite (KERNEL32.@)
*
* experimentation yields that _lwrite:
* o truncates the file at the current position with
* a 0 len write
* o returns 0 on a 0 length write
* o works with console handles
*
*/
LONG WINAPI _hwrite( HFILE handle, LPCSTR buffer, LONG count )
{
DWORD result;
TRACE("%d %p %ld\n", handle, buffer, count );
if (!count)
{
/* Expand or truncate at current position */
if (!SetEndOfFile( (HANDLE)handle )) return HFILE_ERROR;
return 0;
}
if (!WriteFile( (HANDLE)handle, buffer, count, &result, NULL ))
return HFILE_ERROR;
return result;
}
/***********************************************************************
* _lclose (KERNEL32.@)
*/
HFILE WINAPI _lclose( HFILE hFile )
{
TRACE("handle %d\n", hFile );
return CloseHandle( (HANDLE)hFile ) ? 0 : HFILE_ERROR;
}
/***********************************************************************
* _lcreat (KERNEL32.@)
*/
HFILE WINAPI _lcreat( LPCSTR path, INT attr )
{
/* Mask off all flags not explicitly allowed by the doc */
attr &= FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM;
TRACE("%s %02x\n", path, attr );
return (HFILE)CreateFileA( path, GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
CREATE_ALWAYS, attr, 0 );
}
/***********************************************************************
* _lopen (KERNEL32.@)
*/
HFILE WINAPI _lopen( LPCSTR path, INT mode )
{
DWORD access, sharing;
TRACE("('%s',%04x)\n", path, mode );
FILE_ConvertOFMode( mode, &access, &sharing );
return (HFILE)CreateFileA( path, access, sharing, NULL, OPEN_EXISTING, 0, 0 );
}
/***********************************************************************
* _lread (KERNEL32.@)
*/
UINT WINAPI _lread( HFILE handle, LPVOID buffer, UINT count )
{
DWORD result;
if (!ReadFile( (HANDLE)handle, buffer, count, &result, NULL ))
return HFILE_ERROR;
return result;
}
/***********************************************************************
* _llseek (KERNEL32.@)
*/
LONG WINAPI _llseek( HFILE hFile, LONG lOffset, INT nOrigin )
{
return SetFilePointer( (HANDLE)hFile, lOffset, NULL, nOrigin );
}
/***********************************************************************
* _lwrite (KERNEL32.@)
*/
UINT WINAPI _lwrite( HFILE hFile, LPCSTR buffer, UINT count )
{
return (UINT)_hwrite( hFile, buffer, (LONG)count );
}
/***********************************************************************
* FlushFileBuffers (KERNEL32.@)
*/
BOOL WINAPI FlushFileBuffers( HANDLE hFile )
{
NTSTATUS nts;
IO_STATUS_BLOCK ioblk;
if (is_console_handle( hFile ))
{
/* this will fail (as expected) for an output handle */
/* FIXME: wait until FlushFileBuffers is moved to dll/kernel */
/* return FlushConsoleInputBuffer( hFile ); */
return TRUE;
}
nts = NtFlushBuffersFile( hFile, &ioblk );
if (nts != STATUS_SUCCESS)
{
SetLastError( RtlNtStatusToDosError( nts ) );
return FALSE;
}
return TRUE;
}
/***********************************************************************
* GetFileSize (KERNEL32.@)
*/
DWORD WINAPI GetFileSize( HANDLE hFile, LPDWORD filesizehigh )
{
BY_HANDLE_FILE_INFORMATION info;
if (!GetFileInformationByHandle( hFile, &info )) return -1;
if (filesizehigh) *filesizehigh = info.nFileSizeHigh;
return info.nFileSizeLow;
}
/***********************************************************************
* GetFileSizeEx (KERNEL32.@)
*/
BOOL WINAPI GetFileSizeEx( HANDLE hFile, PLARGE_INTEGER lpFileSize )
{
BY_HANDLE_FILE_INFORMATION info;
if (!lpFileSize)
{
SetLastError( ERROR_INVALID_PARAMETER );
return FALSE;
}
if (!GetFileInformationByHandle( hFile, &info ))
{
return FALSE;
}
lpFileSize->u.LowPart = info.nFileSizeLow;
lpFileSize->u.HighPart = info.nFileSizeHigh;
return TRUE;
}
/***********************************************************************
* SetFileTime (KERNEL32.@)
*/
BOOL WINAPI SetFileTime( HANDLE hFile, const FILETIME *ctime,
const FILETIME *atime, const FILETIME *mtime )
{
FILE_BASIC_INFORMATION info;
IO_STATUS_BLOCK io;
NTSTATUS status;
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;
}
status = NtSetInformationFile( hFile, &io, &info, sizeof(info), FileBasicInformation );
if (status == STATUS_SUCCESS) return TRUE;
SetLastError( RtlNtStatusToDosError(status) );
return FALSE;
}
/**************************************************************************
* LockFile (KERNEL32.@)
*/
BOOL WINAPI LockFile( HANDLE hFile, DWORD offset_low, DWORD offset_high,
DWORD count_low, DWORD count_high )
{
NTSTATUS status;
LARGE_INTEGER count, offset;
TRACE( "%p %lx%08lx %lx%08lx\n",
hFile, 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;
status = NtLockFile( hFile, 0, NULL, NULL,
NULL, &offset, &count, NULL, TRUE, TRUE );
if (status != STATUS_SUCCESS) SetLastError( RtlNtStatusToDosError(status) );
return !status;
}
/**************************************************************************
* LockFileEx [KERNEL32.@]
*
* Locks a byte range within an open file for shared or exclusive access.
*
* RETURNS
* success: TRUE
* failure: FALSE
*
* NOTES
* Per Microsoft docs, the third parameter (reserved) must be set to 0.
*/
BOOL WINAPI LockFileEx( HANDLE hFile, DWORD flags, DWORD reserved,
DWORD count_low, DWORD count_high, LPOVERLAPPED overlapped )
{
NTSTATUS status;
LARGE_INTEGER count, offset;
if (reserved)
{
SetLastError( ERROR_INVALID_PARAMETER );
return FALSE;
}
TRACE( "%p %lx%08lx %lx%08lx flags %lx\n",
hFile, overlapped->OffsetHigh, overlapped->Offset,
count_high, count_low, flags );
count.u.LowPart = count_low;
count.u.HighPart = count_high;
offset.u.LowPart = overlapped->Offset;
offset.u.HighPart = overlapped->OffsetHigh;
status = NtLockFile( hFile, overlapped->hEvent, NULL, NULL,
NULL, &offset, &count, NULL,
flags & LOCKFILE_FAIL_IMMEDIATELY,
flags & LOCKFILE_EXCLUSIVE_LOCK );
if (status) SetLastError( RtlNtStatusToDosError(status) );
return !status;
}
/**************************************************************************
* UnlockFile (KERNEL32.@)
*/
BOOL WINAPI UnlockFile( HANDLE hFile, DWORD offset_low, DWORD offset_high,
DWORD count_low, DWORD count_high )
{
NTSTATUS status;
LARGE_INTEGER count, offset;
count.u.LowPart = count_low;
count.u.HighPart = count_high;
offset.u.LowPart = offset_low;
offset.u.HighPart = offset_high;
status = NtUnlockFile( hFile, NULL, &offset, &count, NULL);
if (status) SetLastError( RtlNtStatusToDosError(status) );
return !status;
}
/**************************************************************************
* UnlockFileEx (KERNEL32.@)
*/
BOOL WINAPI UnlockFileEx( HANDLE hFile, 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( hFile, overlapped->Offset, overlapped->OffsetHigh, count_low, count_high );
}
/***********************************************************************
* Win32HandleToDosFileHandle (KERNEL32.21)
*
* Allocate a DOS handle for a Win32 handle. The Win32 handle is no
* longer valid after this function (even on failure).
*
* Note: this is not exactly right, since on Win95 the Win32 handles
* are on top of DOS handles and we do it the other way
* around. Should be good enough though.
*/
HFILE WINAPI Win32HandleToDosFileHandle( HANDLE handle )
{
int i;
if (!handle || (handle == INVALID_HANDLE_VALUE))
return HFILE_ERROR;
FILE_InitProcessDosHandles();
for (i = 0; i < DOS_TABLE_SIZE; i++)
if (!dos_handles[i])
{
dos_handles[i] = handle;
TRACE("Got %d for h32 %p\n", i, handle );
return (HFILE)i;
}
CloseHandle( handle );
SetLastError( ERROR_TOO_MANY_OPEN_FILES );
return HFILE_ERROR;
}
/***********************************************************************
* DosFileHandleToWin32Handle (KERNEL32.20)
*
* Return the Win32 handle for a DOS handle.
*
* Note: this is not exactly right, since on Win95 the Win32 handles
* are on top of DOS handles and we do it the other way
* around. Should be good enough though.
*/
HANDLE WINAPI DosFileHandleToWin32Handle( HFILE handle )
{
HFILE16 hfile = (HFILE16)handle;
if (hfile < 5) FILE_InitProcessDosHandles();
if ((hfile >= DOS_TABLE_SIZE) || !dos_handles[hfile])
{
SetLastError( ERROR_INVALID_HANDLE );
return INVALID_HANDLE_VALUE;
}
return dos_handles[hfile];
}
/***********************************************************************
* DisposeLZ32Handle (KERNEL32.22)
*
* Note: this is not entirely correct, we should only close the
* 32-bit handle and not the 16-bit one, but we cannot do
* this because of the way our DOS handles are implemented.
* It shouldn't break anything though.
*/
void WINAPI DisposeLZ32Handle( HANDLE handle )
{
int i;
if (!handle || (handle == INVALID_HANDLE_VALUE)) return;
for (i = 5; i < DOS_TABLE_SIZE; i++)
if (dos_handles[i] == handle)
{
dos_handles[i] = 0;
CloseHandle( handle );
break;
}
}
/**************************************************************************
* Operations on file names *
**************************************************************************/
/***********************************************************************
* DeleteFileW (KERNEL32.@)
*/
BOOL WINAPI DeleteFileW( LPCWSTR path )
{
HANDLE hFile;
TRACE("%s\n", debugstr_w(path) );
hFile = CreateFileW( path, GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
NULL, OPEN_EXISTING, FILE_FLAG_DELETE_ON_CLOSE, 0 );
if (hFile == INVALID_HANDLE_VALUE) return FALSE;
CloseHandle(hFile); /* last close will delete the file */
return TRUE;
}
/***********************************************************************
* DeleteFileA (KERNEL32.@)
*/
BOOL WINAPI DeleteFileA( LPCSTR path )
{
UNICODE_STRING pathW;
BOOL ret = FALSE;
if (RtlCreateUnicodeStringFromAsciiz(&pathW, path))
{
ret = DeleteFileW(pathW.Buffer);
RtlFreeUnicodeString(&pathW);
}
else
SetLastError(ERROR_NOT_ENOUGH_MEMORY);
return ret;
}
/**************************************************************************
* ReplaceFileW (KERNEL32.@)
* ReplaceFile (KERNEL32.@)
*/
BOOL WINAPI ReplaceFileW(LPCWSTR lpReplacedFileName,LPCWSTR lpReplacementFileName,
LPCWSTR lpBackupFileName, DWORD dwReplaceFlags,
LPVOID lpExclude, LPVOID lpReserved)
{
FIXME("(%s,%s,%s,%08lx,%p,%p) stub\n",debugstr_w(lpReplacedFileName),debugstr_w(lpReplacementFileName),
debugstr_w(lpBackupFileName),dwReplaceFlags,lpExclude,lpReserved);
SetLastError(ERROR_UNABLE_TO_MOVE_REPLACEMENT);
return FALSE;
}
/**************************************************************************
* ReplaceFileA (KERNEL32.@)
*/
BOOL WINAPI ReplaceFileA(LPCSTR lpReplacedFileName,LPCSTR lpReplacementFileName,
LPCSTR lpBackupFileName, DWORD dwReplaceFlags,
LPVOID lpExclude, LPVOID lpReserved)
{
FIXME("(%s,%s,%s,%08lx,%p,%p) stub\n",lpReplacedFileName,lpReplacementFileName,
lpBackupFileName,dwReplaceFlags,lpExclude,lpReserved);
SetLastError(ERROR_UNABLE_TO_MOVE_REPLACEMENT);
return FALSE;
}
/*************************************************************************
* FindFirstFileExW (KERNEL32.@)
*/
HANDLE WINAPI FindFirstFileExW( LPCWSTR filename, FINDEX_INFO_LEVELS level,
LPVOID data, FINDEX_SEARCH_OPS search_op,
LPVOID filter, DWORD flags)
{
WCHAR *mask, *p;
FIND_FIRST_INFO *info = NULL;
UNICODE_STRING nt_name;
OBJECT_ATTRIBUTES attr;
IO_STATUS_BLOCK io;
NTSTATUS status;
if ((search_op != FindExSearchNameMatch) || (flags != 0))
{
FIXME("options not implemented 0x%08x 0x%08lx\n", search_op, flags );
return INVALID_HANDLE_VALUE;
}
if (level != FindExInfoStandard)
{
FIXME("info level %d not implemented\n", level );
return INVALID_HANDLE_VALUE;
}
if (!RtlDosPathNameToNtPathName_U( filename, &nt_name, &mask, NULL ))
{
SetLastError( ERROR_PATH_NOT_FOUND );
return INVALID_HANDLE_VALUE;
}
if (!mask || !*mask)
{
SetLastError( ERROR_FILE_NOT_FOUND );
goto error;
}
if (!(info = HeapAlloc( GetProcessHeap(), 0, sizeof(*info))))
{
SetLastError( ERROR_NOT_ENOUGH_MEMORY );
goto error;
}
if (!RtlCreateUnicodeString( &info->mask, mask ))
{
SetLastError( ERROR_NOT_ENOUGH_MEMORY );
goto error;
}
/* truncate dir name before mask */
*mask = 0;
nt_name.Length = (mask - nt_name.Buffer) * sizeof(WCHAR);
/* check if path is the root of the drive */
info->is_root = FALSE;
p = nt_name.Buffer + 4; /* skip \??\ prefix */
if (p[0] && p[1] == ':')
{
p += 2;
while (*p == '\\') p++;
info->is_root = (*p == 0);
}
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.ObjectName = &nt_name;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
status = NtOpenFile( &info->handle, GENERIC_READ, &attr, &io,
FILE_SHARE_READ | FILE_SHARE_WRITE,
FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT );
if (status != STATUS_SUCCESS)
{
RtlFreeUnicodeString( &info->mask );
SetLastError( RtlNtStatusToDosError(status) );
goto error;
}
RtlFreeUnicodeString( &nt_name );
RtlInitializeCriticalSection( &info->cs );
info->data_pos = 0;
info->data_len = 0;
if (!FindNextFileW( (HANDLE)info, data ))
{
TRACE( "%s not found\n", debugstr_w(filename) );
FindClose( (HANDLE)info );
SetLastError( ERROR_FILE_NOT_FOUND );
return INVALID_HANDLE_VALUE;
}
return (HANDLE)info;
error:
if (info) HeapFree( GetProcessHeap(), 0, info );
RtlFreeUnicodeString( &nt_name );
return INVALID_HANDLE_VALUE;
}
/*************************************************************************
* FindNextFileW (KERNEL32.@)
*/
BOOL WINAPI FindNextFileW( HANDLE handle, WIN32_FIND_DATAW *data )
{
FIND_FIRST_INFO *info;
FILE_BOTH_DIR_INFORMATION *dir_info;
BOOL ret = FALSE;
if (handle == INVALID_HANDLE_VALUE)
{
SetLastError( ERROR_INVALID_HANDLE );
return ret;
}
info = (FIND_FIRST_INFO *)handle;
RtlEnterCriticalSection( &info->cs );
for (;;)
{
if (info->data_pos >= info->data_len) /* need to read some more data */
{
IO_STATUS_BLOCK io;
NtQueryDirectoryFile( info->handle, 0, NULL, NULL, &io, info->data, sizeof(info->data),
FileBothDirectoryInformation, FALSE, &info->mask, FALSE );
if (io.u.Status)
{
SetLastError( RtlNtStatusToDosError( io.u.Status ) );
break;
}
info->data_len = io.Information;
info->data_pos = 0;
}
dir_info = (FILE_BOTH_DIR_INFORMATION *)(info->data + info->data_pos);
if (dir_info->NextEntryOffset) info->data_pos += dir_info->NextEntryOffset;
else info->data_pos = info->data_len;
/* don't return '.' and '..' in the root of the drive */
if (info->is_root)
{
if (dir_info->FileNameLength == sizeof(WCHAR) && dir_info->FileName[0] == '.') continue;
if (dir_info->FileNameLength == 2 * sizeof(WCHAR) &&
dir_info->FileName[0] == '.' && dir_info->FileName[1] == '.') continue;
}
data->dwFileAttributes = dir_info->FileAttributes;
data->ftCreationTime = *(FILETIME *)&dir_info->CreationTime;
data->ftLastAccessTime = *(FILETIME *)&dir_info->LastAccessTime;
data->ftLastWriteTime = *(FILETIME *)&dir_info->LastWriteTime;
data->nFileSizeHigh = dir_info->EndOfFile.QuadPart >> 32;
data->nFileSizeLow = (DWORD)dir_info->EndOfFile.QuadPart;
data->dwReserved0 = 0;
data->dwReserved1 = 0;
memcpy( data->cFileName, dir_info->FileName, dir_info->FileNameLength );
data->cFileName[dir_info->FileNameLength/sizeof(WCHAR)] = 0;
memcpy( data->cAlternateFileName, dir_info->ShortName, dir_info->ShortNameLength );
data->cAlternateFileName[dir_info->ShortNameLength/sizeof(WCHAR)] = 0;
TRACE("returning %s (%s)\n",
debugstr_w(data->cFileName), debugstr_w(data->cAlternateFileName) );
ret = TRUE;
break;
}
RtlLeaveCriticalSection( &info->cs );
return ret;
}
/*************************************************************************
* FindClose (KERNEL32.@)
*/
BOOL WINAPI FindClose( HANDLE handle )
{
FIND_FIRST_INFO *info = (FIND_FIRST_INFO *)handle;
if (!handle || handle == INVALID_HANDLE_VALUE) goto error;
__TRY
{
RtlEnterCriticalSection( &info->cs );
if (info->handle) CloseHandle( info->handle );
info->handle = 0;
RtlFreeUnicodeString( &info->mask );
info->mask.Buffer = NULL;
info->data_pos = 0;
info->data_len = 0;
}
__EXCEPT(page_fault)
{
WARN("Illegal handle %p\n", handle);
SetLastError( ERROR_INVALID_HANDLE );
return FALSE;
}
__ENDTRY
RtlLeaveCriticalSection( &info->cs );
RtlDeleteCriticalSection( &info->cs );
HeapFree(GetProcessHeap(), 0, info);
return TRUE;
error:
SetLastError( ERROR_INVALID_HANDLE );
return FALSE;
}
/*************************************************************************
* FindFirstFileA (KERNEL32.@)
*/
HANDLE WINAPI FindFirstFileA( LPCSTR lpFileName, WIN32_FIND_DATAA *lpFindData )
{
return FindFirstFileExA(lpFileName, FindExInfoStandard, lpFindData,
FindExSearchNameMatch, NULL, 0);
}
/*************************************************************************
* FindFirstFileExA (KERNEL32.@)
*/
HANDLE WINAPI FindFirstFileExA( LPCSTR lpFileName, FINDEX_INFO_LEVELS fInfoLevelId,
LPVOID lpFindFileData, FINDEX_SEARCH_OPS fSearchOp,
LPVOID lpSearchFilter, DWORD dwAdditionalFlags)
{
HANDLE handle;
WIN32_FIND_DATAA *dataA;
WIN32_FIND_DATAW dataW;
UNICODE_STRING pathW;
if (!lpFileName)
{
SetLastError(ERROR_PATH_NOT_FOUND);
return INVALID_HANDLE_VALUE;
}
if (!RtlCreateUnicodeStringFromAsciiz(&pathW, lpFileName))
{
SetLastError(ERROR_NOT_ENOUGH_MEMORY);
return INVALID_HANDLE_VALUE;
}
handle = FindFirstFileExW(pathW.Buffer, fInfoLevelId, &dataW, fSearchOp, lpSearchFilter, dwAdditionalFlags);
RtlFreeUnicodeString(&pathW);
if (handle == INVALID_HANDLE_VALUE) return handle;
dataA = (WIN32_FIND_DATAA *) lpFindFileData;
dataA->dwFileAttributes = dataW.dwFileAttributes;
dataA->ftCreationTime = dataW.ftCreationTime;
dataA->ftLastAccessTime = dataW.ftLastAccessTime;
dataA->ftLastWriteTime = dataW.ftLastWriteTime;
dataA->nFileSizeHigh = dataW.nFileSizeHigh;
dataA->nFileSizeLow = dataW.nFileSizeLow;
WideCharToMultiByte( CP_ACP, 0, dataW.cFileName, -1,
dataA->cFileName, sizeof(dataA->cFileName), NULL, NULL );
WideCharToMultiByte( CP_ACP, 0, dataW.cAlternateFileName, -1,
dataA->cAlternateFileName, sizeof(dataA->cAlternateFileName), NULL, NULL );
return handle;
}
/*************************************************************************
* FindFirstFileW (KERNEL32.@)
*/
HANDLE WINAPI FindFirstFileW( LPCWSTR lpFileName, WIN32_FIND_DATAW *lpFindData )
{
return FindFirstFileExW(lpFileName, FindExInfoStandard, lpFindData,
FindExSearchNameMatch, NULL, 0);
}
/*************************************************************************
* FindNextFileA (KERNEL32.@)
*/
BOOL WINAPI FindNextFileA( HANDLE handle, WIN32_FIND_DATAA *data )
{
WIN32_FIND_DATAW dataW;
if (!FindNextFileW( handle, &dataW )) return FALSE;
data->dwFileAttributes = dataW.dwFileAttributes;
data->ftCreationTime = dataW.ftCreationTime;
data->ftLastAccessTime = dataW.ftLastAccessTime;
data->ftLastWriteTime = dataW.ftLastWriteTime;
data->nFileSizeHigh = dataW.nFileSizeHigh;
data->nFileSizeLow = dataW.nFileSizeLow;
WideCharToMultiByte( CP_ACP, 0, dataW.cFileName, -1,
data->cFileName, sizeof(data->cFileName), NULL, NULL );
WideCharToMultiByte( CP_ACP, 0, dataW.cAlternateFileName, -1,
data->cAlternateFileName,
sizeof(data->cAlternateFileName), NULL, NULL );
return TRUE;
}
/**************************************************************************
* GetFileAttributesW (KERNEL32.@)
*/
DWORD WINAPI GetFileAttributesW( LPCWSTR name )
{
FILE_BASIC_INFORMATION info;
UNICODE_STRING nt_name;
OBJECT_ATTRIBUTES attr;
NTSTATUS status;
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;
}
/**************************************************************************
* GetFileAttributesA (KERNEL32.@)
*/
DWORD WINAPI GetFileAttributesA( LPCSTR name )
{
UNICODE_STRING nameW;
DWORD ret = INVALID_FILE_ATTRIBUTES;
if (!name)
{
SetLastError( ERROR_INVALID_PARAMETER );
return INVALID_FILE_ATTRIBUTES;
}
if (RtlCreateUnicodeStringFromAsciiz(&nameW, name))
{
ret = GetFileAttributesW(nameW.Buffer);
RtlFreeUnicodeString(&nameW);
}
else
SetLastError(ERROR_NOT_ENOUGH_MEMORY);
return ret;
}
/**************************************************************************
* SetFileAttributesW (KERNEL32.@)
*/
BOOL WINAPI SetFileAttributesW( LPCWSTR name, DWORD attributes )
{
UNICODE_STRING nt_name;
OBJECT_ATTRIBUTES attr;
IO_STATUS_BLOCK io;
NTSTATUS status;
HANDLE handle;
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, 0, &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 );
}
if (status == STATUS_SUCCESS) return TRUE;
SetLastError( RtlNtStatusToDosError(status) );
return FALSE;
}
/**************************************************************************
* SetFileAttributesA (KERNEL32.@)
*/
BOOL WINAPI SetFileAttributesA( LPCSTR name, DWORD attributes )
{
UNICODE_STRING filenameW;
BOOL ret = FALSE;
if (!name)
{
SetLastError( ERROR_INVALID_PARAMETER );
return FALSE;
}
if (RtlCreateUnicodeStringFromAsciiz(&filenameW, name))
{
ret = SetFileAttributesW(filenameW.Buffer, attributes);
RtlFreeUnicodeString(&filenameW);
}
else
SetLastError(ERROR_NOT_ENOUGH_MEMORY);
return ret;
}
/**************************************************************************
* GetFileAttributesExW (KERNEL32.@)
*/
BOOL WINAPI GetFileAttributesExW( LPCWSTR name, GET_FILEEX_INFO_LEVELS level, LPVOID ptr )
{
FILE_NETWORK_OPEN_INFORMATION info;
WIN32_FILE_ATTRIBUTE_DATA *data = ptr;
UNICODE_STRING nt_name;
OBJECT_ATTRIBUTES attr;
NTSTATUS status;
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 (status != STATUS_SUCCESS)
{
SetLastError( RtlNtStatusToDosError(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;
}
/**************************************************************************
* GetFileAttributesExA (KERNEL32.@)
*/
BOOL WINAPI GetFileAttributesExA( LPCSTR name, GET_FILEEX_INFO_LEVELS level, LPVOID ptr )
{
UNICODE_STRING filenameW;
BOOL ret = FALSE;
if (!name)
{
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
if (RtlCreateUnicodeStringFromAsciiz(&filenameW, name))
{
ret = GetFileAttributesExW(filenameW.Buffer, level, ptr);
RtlFreeUnicodeString(&filenameW);
}
else
SetLastError(ERROR_NOT_ENOUGH_MEMORY);
return ret;
}
/******************************************************************************
* GetCompressedFileSizeW (KERNEL32.@)
*
* RETURNS
* Success: Low-order doubleword of number of bytes
* Failure: INVALID_FILE_SIZE
*/
DWORD WINAPI GetCompressedFileSizeW(
LPCWSTR name, /* [in] Pointer to name of file */
LPDWORD size_high ) /* [out] Receives high-order doubleword of size */
{
UNICODE_STRING nt_name;
OBJECT_ATTRIBUTES attr;
IO_STATUS_BLOCK io;
NTSTATUS status;
HANDLE handle;
DWORD ret = INVALID_FILE_SIZE;
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, 0, &attr, &io, 0, FILE_SYNCHRONOUS_IO_NONALERT );
RtlFreeUnicodeString( &nt_name );
if (status == STATUS_SUCCESS)
{
/* we don't support compressed files, simply return the file size */
ret = GetFileSize( handle, size_high );
NtClose( handle );
}
else SetLastError( RtlNtStatusToDosError(status) );
return ret;
}
/******************************************************************************
* GetCompressedFileSizeA (KERNEL32.@)
*/
DWORD WINAPI GetCompressedFileSizeA( LPCSTR name, LPDWORD size_high )
{
UNICODE_STRING filenameW;
DWORD ret;
if (RtlCreateUnicodeStringFromAsciiz(&filenameW, name))
{
ret = GetCompressedFileSizeW(filenameW.Buffer, size_high);
RtlFreeUnicodeString(&filenameW);
}
else
{
ret = INVALID_FILE_SIZE;
SetLastError(ERROR_NOT_ENOUGH_MEMORY);
}
return ret;
}
/***********************************************************************
* OpenFile (KERNEL32.@)
*/
HFILE WINAPI OpenFile( LPCSTR name, OFSTRUCT *ofs, UINT mode )
{
HANDLE handle;
FILETIME filetime;
WORD filedatetime[2];
if (!ofs) return HFILE_ERROR;
TRACE("%s %s %s %s%s%s%s%s%s%s%s%s\n",name,
((mode & 0x3 )==OF_READ)?"OF_READ":
((mode & 0x3 )==OF_WRITE)?"OF_WRITE":
((mode & 0x3 )==OF_READWRITE)?"OF_READWRITE":"unknown",
((mode & 0x70 )==OF_SHARE_COMPAT)?"OF_SHARE_COMPAT":
((mode & 0x70 )==OF_SHARE_DENY_NONE)?"OF_SHARE_DENY_NONE":
((mode & 0x70 )==OF_SHARE_DENY_READ)?"OF_SHARE_DENY_READ":
((mode & 0x70 )==OF_SHARE_DENY_WRITE)?"OF_SHARE_DENY_WRITE":
((mode & 0x70 )==OF_SHARE_EXCLUSIVE)?"OF_SHARE_EXCLUSIVE":"unknown",
((mode & OF_PARSE )==OF_PARSE)?"OF_PARSE ":"",
((mode & OF_DELETE )==OF_DELETE)?"OF_DELETE ":"",
((mode & OF_VERIFY )==OF_VERIFY)?"OF_VERIFY ":"",
((mode & OF_SEARCH )==OF_SEARCH)?"OF_SEARCH ":"",
((mode & OF_CANCEL )==OF_CANCEL)?"OF_CANCEL ":"",
((mode & OF_CREATE )==OF_CREATE)?"OF_CREATE ":"",
((mode & OF_PROMPT )==OF_PROMPT)?"OF_PROMPT ":"",
((mode & OF_EXIST )==OF_EXIST)?"OF_EXIST ":"",
((mode & OF_REOPEN )==OF_REOPEN)?"OF_REOPEN ":""
);
ofs->cBytes = sizeof(OFSTRUCT);
ofs->nErrCode = 0;
if (mode & OF_REOPEN) name = ofs->szPathName;
if (!name) return HFILE_ERROR;
TRACE("%s %04x\n", name, mode );
/* the watcom 10.6 IDE relies on a valid path returned in ofs->szPathName
Are there any cases where getting the path here is wrong?
Uwe Bonnes 1997 Apr 2 */
if (!GetFullPathNameA( name, sizeof(ofs->szPathName), ofs->szPathName, NULL )) goto error;
/* OF_PARSE simply fills the structure */
if (mode & OF_PARSE)
{
ofs->fFixedDisk = (GetDriveTypeA( ofs->szPathName ) != DRIVE_REMOVABLE);
TRACE("(%s): OF_PARSE, res = '%s'\n", name, ofs->szPathName );
return 0;
}
/* OF_CREATE is completely different from all other options, so
handle it first */
if (mode & OF_CREATE)
{
DWORD access, sharing;
FILE_ConvertOFMode( mode, &access, &sharing );
if ((handle = CreateFileA( name, GENERIC_READ | GENERIC_WRITE,
sharing, NULL, CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL, 0 )) == INVALID_HANDLE_VALUE)
goto error;
}
else
{
/* Now look for the file */
if (!SearchPathA( NULL, name, NULL, sizeof(ofs->szPathName), ofs->szPathName, NULL ))
goto error;
TRACE("found %s\n", debugstr_a(ofs->szPathName) );
if (mode & OF_DELETE)
{
if (!DeleteFileA( ofs->szPathName )) goto error;
TRACE("(%s): OF_DELETE return = OK\n", name);
return TRUE;
}
handle = (HANDLE)_lopen( ofs->szPathName, mode );
if (handle == INVALID_HANDLE_VALUE) goto error;
GetFileTime( handle, NULL, NULL, &filetime );
FileTimeToDosDateTime( &filetime, &filedatetime[0], &filedatetime[1] );
if ((mode & OF_VERIFY) && (mode & OF_REOPEN))
{
if (ofs->Reserved1 != filedatetime[0] || ofs->Reserved2 != filedatetime[1] )
{
CloseHandle( handle );
WARN("(%s): OF_VERIFY failed\n", name );
/* FIXME: what error here? */
SetLastError( ERROR_FILE_NOT_FOUND );
goto error;
}
}
ofs->Reserved1 = filedatetime[0];
ofs->Reserved2 = filedatetime[1];
}
TRACE("(%s): OK, return = %p\n", name, handle );
if (mode & OF_EXIST) /* Return TRUE instead of a handle */
{
CloseHandle( handle );
return TRUE;
}
else return (HFILE)handle;
error: /* We get here if there was an error opening the file */
ofs->nErrCode = GetLastError();
WARN("(%s): return = HFILE_ERROR error= %d\n", name,ofs->nErrCode );
return HFILE_ERROR;
}
Reference in New Issue View Git Blame Copy Permalink