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wine/files/file.c

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/*
* File handling functions
*
* Copyright 1993 John Burton
* Copyright 1996 Alexandre Julliard
*
* 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 <assert.h>
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#ifdef HAVE_SYS_ERRNO_H
#include <sys/errno.h>
#endif
#include <sys/types.h>
#include <sys/stat.h>
#ifdef HAVE_SYS_MMAN_H
#include <sys/mman.h>
#endif
#include <sys/time.h>
#include <sys/poll.h>
#include <time.h>
#include <unistd.h>
#include <utime.h>
#include "winerror.h"
#include "windef.h"
#include "winbase.h"
#include "wine/winbase16.h"
#include "drive.h"
#include "file.h"
#include "heap.h"
#include "msdos.h"
#include "wincon.h"
#include "debugtools.h"
#include "wine/server.h"
DEFAULT_DEBUG_CHANNEL(file);
#if defined(MAP_ANONYMOUS) && !defined(MAP_ANON)
#define MAP_ANON MAP_ANONYMOUS
#endif
/* Size of per-process table of DOS handles */
#define DOS_TABLE_SIZE 256
static HANDLE dos_handles[DOS_TABLE_SIZE];
/***********************************************************************
* FILE_ConvertOFMode
*
* Convert OF_* mode into flags for CreateFile.
*/
static void FILE_ConvertOFMode( INT mode, DWORD *access, DWORD *sharing )
{
switch(mode & 0x03)
{
case OF_READ: *access = GENERIC_READ; break;
case OF_WRITE: *access = GENERIC_WRITE; break;
case OF_READWRITE: *access = GENERIC_READ | GENERIC_WRITE; break;
default: *access = 0; break;
}
switch(mode & 0x70)
{
case OF_SHARE_EXCLUSIVE: *sharing = 0; break;
case OF_SHARE_DENY_WRITE: *sharing = FILE_SHARE_READ; break;
case OF_SHARE_DENY_READ: *sharing = FILE_SHARE_WRITE; break;
case OF_SHARE_DENY_NONE:
case OF_SHARE_COMPAT:
default: *sharing = FILE_SHARE_READ | FILE_SHARE_WRITE; break;
}
}
/***********************************************************************
* FILE_strcasecmp
*
* locale-independent case conversion for file I/O
*/
int FILE_strcasecmp( const char *str1, const char *str2 )
{
for (;;)
{
int ret = FILE_toupper(*str1) - FILE_toupper(*str2);
if (ret || !*str1) return ret;
str1++;
str2++;
}
}
/***********************************************************************
* FILE_strncasecmp
*
* locale-independent case conversion for file I/O
*/
int FILE_strncasecmp( const char *str1, const char *str2, int len )
{
int ret = 0;
for ( ; len > 0; len--, str1++, str2++)
if ((ret = FILE_toupper(*str1) - FILE_toupper(*str2)) || !*str1) break;
return ret;
}
/***********************************************************************
* FILE_SetDosError
*
* Set the DOS error code from errno.
*/
void FILE_SetDosError(void)
{
int save_errno = errno; /* errno gets overwritten by printf */
TRACE("errno = %d %s\n", errno, strerror(errno));
switch (save_errno)
{
case EAGAIN:
SetLastError( ERROR_SHARING_VIOLATION );
break;
case EBADF:
SetLastError( ERROR_INVALID_HANDLE );
break;
case ENOSPC:
SetLastError( ERROR_HANDLE_DISK_FULL );
break;
case EACCES:
case EPERM:
case EROFS:
SetLastError( ERROR_ACCESS_DENIED );
break;
case EBUSY:
SetLastError( ERROR_LOCK_VIOLATION );
break;
case ENOENT:
SetLastError( ERROR_FILE_NOT_FOUND );
break;
case EISDIR:
SetLastError( ERROR_CANNOT_MAKE );
break;
case ENFILE:
case EMFILE:
SetLastError( ERROR_NO_MORE_FILES );
break;
case EEXIST:
SetLastError( ERROR_FILE_EXISTS );
break;
case EINVAL:
case ESPIPE:
SetLastError( ERROR_SEEK );
break;
case ENOTEMPTY:
SetLastError( ERROR_DIR_NOT_EMPTY );
break;
case ENOEXEC:
SetLastError( ERROR_BAD_FORMAT );
break;
default:
WARN("unknown file error: %s\n", strerror(save_errno) );
SetLastError( ERROR_GEN_FAILURE );
break;
}
errno = save_errno;
}
/***********************************************************************
* FILE_DupUnixHandle
*
* Duplicate a Unix handle into a task handle.
* Returns 0 on failure.
*/
HANDLE FILE_DupUnixHandle( int fd, DWORD access )
{
HANDLE ret;
wine_server_send_fd( fd );
SERVER_START_REQ( alloc_file_handle )
{
req->access = access;
req->fd = fd;
SERVER_CALL();
ret = req->handle;
}
SERVER_END_REQ;
return ret;
}
/***********************************************************************
* FILE_GetUnixHandleType
*
* Retrieve the Unix handle corresponding to a file handle.
* Returns -1 on failure.
*/
int FILE_GetUnixHandleType( HANDLE handle, DWORD access, DWORD *type )
{
int ret, fd = -1;
do
{
SERVER_START_REQ( get_handle_fd )
{
req->handle = handle;
req->access = access;
if (!(ret = SERVER_CALL_ERR()))
{
fd = req->fd;
}
if (type) *type = req->type;
}
SERVER_END_REQ;
if (ret) return -1;
if (fd == -1) /* it wasn't in the cache, get it from the server */
fd = wine_server_recv_fd( handle );
} while (fd == -2); /* -2 means race condition, so restart from scratch */
if (fd != -1)
{
if ((fd = dup(fd)) == -1)
SetLastError( ERROR_TOO_MANY_OPEN_FILES );
}
return fd;
}
/***********************************************************************
* FILE_GetUnixHandle
*
* Retrieve the Unix handle corresponding to a file handle.
* Returns -1 on failure.
*/
int FILE_GetUnixHandle( HANDLE handle, DWORD access )
{
return FILE_GetUnixHandleType(handle, access, NULL);
}
/*************************************************************************
* FILE_OpenConsole
*
* Open a handle to the current process console.
* Returns 0 on failure.
*/
static HANDLE FILE_OpenConsole( BOOL output, DWORD access, LPSECURITY_ATTRIBUTES sa )
{
HANDLE ret;
SERVER_START_REQ( open_console )
{
req->output = output;
req->access = access;
req->inherit = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle);
SetLastError(0);
SERVER_CALL_ERR();
ret = req->handle;
}
SERVER_END_REQ;
return ret;
}
/***********************************************************************
* FILE_CreateFile
*
* Implementation of CreateFile. Takes a Unix path name.
* Returns 0 on failure.
*/
HANDLE FILE_CreateFile( LPCSTR filename, DWORD access, DWORD sharing,
LPSECURITY_ATTRIBUTES sa, DWORD creation,
DWORD attributes, HANDLE template, BOOL fail_read_only )
{
DWORD err;
HANDLE ret;
size_t len = strlen(filename);
if (len > REQUEST_MAX_VAR_SIZE)
{
FIXME("filename '%s' too long\n", filename );
SetLastError( ERROR_INVALID_PARAMETER );
return 0;
}
restart:
SERVER_START_VAR_REQ( create_file, len )
{
req->access = access;
req->inherit = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle);
req->sharing = sharing;
req->create = creation;
req->attrs = attributes;
memcpy( server_data_ptr(req), filename, len );
SetLastError(0);
err = SERVER_CALL();
ret = req->handle;
}
SERVER_END_VAR_REQ;
/* If write access failed, retry without GENERIC_WRITE */
if (!ret && !fail_read_only && (access & GENERIC_WRITE))
{
if ((err == STATUS_MEDIA_WRITE_PROTECTED) || (err == STATUS_ACCESS_DENIED))
{
TRACE("Write access failed for file '%s', trying without "
"write access\n", filename);
access &= ~GENERIC_WRITE;
goto restart;
}
}
if (err) SetLastError( RtlNtStatusToDosError(err) );
if (!ret)
WARN("Unable to create file '%s' (GLE %ld)\n", filename, GetLastError());
return ret;
}
/***********************************************************************
* FILE_CreateDevice
*
* Same as FILE_CreateFile but for a device
* Returns 0 on failure.
*/
HANDLE FILE_CreateDevice( int client_id, DWORD access, LPSECURITY_ATTRIBUTES sa )
{
HANDLE ret;
SERVER_START_REQ( create_device )
{
req->access = access;
req->inherit = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle);
req->id = client_id;
SetLastError(0);
SERVER_CALL_ERR();
ret = req->handle;
}
SERVER_END_REQ;
return ret;
}
static HANDLE FILE_OpenPipe(LPCSTR name, DWORD access)
{
HANDLE ret;
DWORD len = name ? MultiByteToWideChar( CP_ACP, 0, name, strlen(name), NULL, 0 ) : 0;
TRACE("name %s access %lx\n",name,access);
if (len >= MAX_PATH)
{
SetLastError( ERROR_FILENAME_EXCED_RANGE );
return 0;
}
SERVER_START_VAR_REQ( open_named_pipe, len * sizeof(WCHAR) )
{
req->access = access;
if (len) MultiByteToWideChar( CP_ACP, 0, name, strlen(name), server_data_ptr(req), len );
SetLastError(0);
SERVER_CALL_ERR();
ret = req->handle;
}
SERVER_END_VAR_REQ;
TRACE("Returned %d\n",ret);
return ret;
}
/*************************************************************************
* CreateFileA [KERNEL32.@] Creates or opens a file or other object
*
* Creates or opens an object, and returns a handle that can be used to
* access that object.
*
* PARAMS
*
* filename [in] pointer to filename to be accessed
* access [in] access mode requested
* sharing [in] share mode
* sa [in] pointer to security attributes
* creation [in] how to create the file
* attributes [in] attributes for newly created file
* template [in] handle to file with extended attributes to copy
*
* RETURNS
* Success: Open handle to specified file
* Failure: INVALID_HANDLE_VALUE
*
* NOTES
* Should call SetLastError() on failure.
*
* BUGS
*
* Doesn't support character devices, template files, or a
* lot of the 'attributes' flags yet.
*/
HANDLE WINAPI CreateFileA( LPCSTR filename, DWORD access, DWORD sharing,
LPSECURITY_ATTRIBUTES sa, DWORD creation,
DWORD attributes, HANDLE template )
{
DOS_FULL_NAME full_name;
HANDLE ret;
if (!filename)
{
SetLastError( ERROR_INVALID_PARAMETER );
return INVALID_HANDLE_VALUE;
}
TRACE("%s %s%s%s%s%s%s%s\n",filename,
((access & GENERIC_READ)==GENERIC_READ)?"GENERIC_READ ":"",
((access & GENERIC_WRITE)==GENERIC_WRITE)?"GENERIC_WRITE ":"",
(!access)?"QUERY_ACCESS ":"",
((sharing & FILE_SHARE_READ)==FILE_SHARE_READ)?"FILE_SHARE_READ ":"",
((sharing & FILE_SHARE_WRITE)==FILE_SHARE_WRITE)?"FILE_SHARE_WRITE ":"",
((sharing & FILE_SHARE_DELETE)==FILE_SHARE_DELETE)?"FILE_SHARE_DELETE ":"",
(creation ==CREATE_NEW)?"CREATE_NEW":
(creation ==CREATE_ALWAYS)?"CREATE_ALWAYS ":
(creation ==OPEN_EXISTING)?"OPEN_EXISTING ":
(creation ==OPEN_ALWAYS)?"OPEN_ALWAYS ":
(creation ==TRUNCATE_EXISTING)?"TRUNCATE_EXISTING ":"");
/* If the name starts with '\\?\', ignore the first 4 chars. */
if (!strncmp(filename, "\\\\?\\", 4))
{
filename += 4;
if (!strncmp(filename, "UNC\\", 4))
{
FIXME("UNC name (%s) not supported.\n", filename );
SetLastError( ERROR_PATH_NOT_FOUND );
return INVALID_HANDLE_VALUE;
}
}
if (!strncmp(filename, "\\\\.\\", 4)) {
if(!strncasecmp(&filename[4],"pipe\\",5))
{
TRACE("Opening a pipe: %s\n",filename);
ret = FILE_OpenPipe(filename,access);
goto done;
}
else if (!DOSFS_GetDevice( filename ))
{
ret = DEVICE_Open( filename+4, access, sa );
goto done;
}
else
filename+=4; /* fall into DOSFS_Device case below */
}
/* If the name still starts with '\\', it's a UNC name. */
if (!strncmp(filename, "\\\\", 2))
{
FIXME("UNC name (%s) not supported.\n", filename );
SetLastError( ERROR_PATH_NOT_FOUND );
return INVALID_HANDLE_VALUE;
}
/* If the name contains a DOS wild card (* or ?), do no create a file */
if(strchr(filename,'*') || strchr(filename,'?'))
return INVALID_HANDLE_VALUE;
/* Open a console for CONIN$ or CONOUT$ */
if (!strcasecmp(filename, "CONIN$"))
{
ret = FILE_OpenConsole( FALSE, access, sa );
goto done;
}
if (!strcasecmp(filename, "CONOUT$"))
{
ret = FILE_OpenConsole( TRUE, access, sa );
goto done;
}
if (DOSFS_GetDevice( filename ))
{
TRACE("opening device '%s'\n", filename );
if (!(ret = DOSFS_OpenDevice( filename, access, attributes, sa )))
{
/* Do not silence this please. It is a critical error. -MM */
ERR("Couldn't open device '%s'!\n",filename);
SetLastError( ERROR_FILE_NOT_FOUND );
}
goto done;
}
/* check for filename, don't check for last entry if creating */
if (!DOSFS_GetFullName( filename,
(creation == OPEN_EXISTING) ||
(creation == TRUNCATE_EXISTING),
&full_name )) {
WARN("Unable to get full filename from '%s' (GLE %ld)\n",
filename, GetLastError());
return INVALID_HANDLE_VALUE;
}
ret = FILE_CreateFile( full_name.long_name, access, sharing,
sa, creation, attributes, template,
DRIVE_GetFlags(full_name.drive) & DRIVE_FAIL_READ_ONLY );
done:
if (!ret) ret = INVALID_HANDLE_VALUE;
return ret;
}
/*************************************************************************
* CreateFileW (KERNEL32.@)
*/
HANDLE WINAPI CreateFileW( LPCWSTR filename, DWORD access, DWORD sharing,
LPSECURITY_ATTRIBUTES sa, DWORD creation,
DWORD attributes, HANDLE template)
{
LPSTR afn = HEAP_strdupWtoA( GetProcessHeap(), 0, filename );
HANDLE res = CreateFileA( afn, access, sharing, sa, creation, attributes, template );
HeapFree( GetProcessHeap(), 0, afn );
return res;
}
/***********************************************************************
* FILE_FillInfo
*
* Fill a file information from a struct stat.
*/
static void FILE_FillInfo( struct stat *st, BY_HANDLE_FILE_INFORMATION *info )
{
if (S_ISDIR(st->st_mode))
info->dwFileAttributes = FILE_ATTRIBUTE_DIRECTORY;
else
info->dwFileAttributes = FILE_ATTRIBUTE_ARCHIVE;
if (!(st->st_mode & S_IWUSR))
info->dwFileAttributes |= FILE_ATTRIBUTE_READONLY;
RtlSecondsSince1970ToTime( st->st_mtime, &info->ftCreationTime );
RtlSecondsSince1970ToTime( st->st_mtime, &info->ftLastWriteTime );
RtlSecondsSince1970ToTime( st->st_atime, &info->ftLastAccessTime );
info->dwVolumeSerialNumber = 0; /* FIXME */
info->nFileSizeHigh = 0;
info->nFileSizeLow = 0;
if (!S_ISDIR(st->st_mode)) {
info->nFileSizeHigh = st->st_size >> 32;
info->nFileSizeLow = st->st_size & 0xffffffff;
}
info->nNumberOfLinks = st->st_nlink;
info->nFileIndexHigh = 0;
info->nFileIndexLow = st->st_ino;
}
/***********************************************************************
* FILE_Stat
*
* Stat a Unix path name. Return TRUE if OK.
*/
BOOL FILE_Stat( LPCSTR unixName, BY_HANDLE_FILE_INFORMATION *info )
{
struct stat st;
if (lstat( unixName, &st ) == -1)
{
FILE_SetDosError();
return FALSE;
}
if (!S_ISLNK(st.st_mode)) FILE_FillInfo( &st, info );
else
{
/* do a "real" stat to find out
about the type of the symlink destination */
if (stat( unixName, &st ) == -1)
{
FILE_SetDosError();
return FALSE;
}
FILE_FillInfo( &st, info );
info->dwFileAttributes |= FILE_ATTRIBUTE_SYMLINK;
}
return TRUE;
}
/***********************************************************************
* GetFileInformationByHandle (KERNEL32.@)
*/
DWORD WINAPI GetFileInformationByHandle( HANDLE hFile,
BY_HANDLE_FILE_INFORMATION *info )
{
DWORD ret;
if (!info) return 0;
SERVER_START_REQ( get_file_info )
{
req->handle = hFile;
if ((ret = !SERVER_CALL_ERR()))
{
/* FIXME: which file types are supported ?
* Serial ports (FILE_TYPE_CHAR) are not,
* and MSDN also says that pipes are not supported.
* FILE_TYPE_REMOTE seems to be supported according to
* MSDN q234741.txt */
if ((req->type == FILE_TYPE_DISK)
|| (req->type == FILE_TYPE_REMOTE))
{
RtlSecondsSince1970ToTime( req->write_time, &info->ftCreationTime );
RtlSecondsSince1970ToTime( req->write_time, &info->ftLastWriteTime );
RtlSecondsSince1970ToTime( req->access_time, &info->ftLastAccessTime );
info->dwFileAttributes = req->attr;
info->dwVolumeSerialNumber = req->serial;
info->nFileSizeHigh = req->size_high;
info->nFileSizeLow = req->size_low;
info->nNumberOfLinks = req->links;
info->nFileIndexHigh = req->index_high;
info->nFileIndexLow = req->index_low;
}
else
{
SetLastError(ERROR_NOT_SUPPORTED);
ret = 0;
}
}
}
SERVER_END_REQ;
return ret;
}
/**************************************************************************
* GetFileAttributes (KERNEL.420)
*/
DWORD WINAPI GetFileAttributes16( LPCSTR name )
{
return GetFileAttributesA( name );
}
/**************************************************************************
* GetFileAttributesA (KERNEL32.@)
*/
DWORD WINAPI GetFileAttributesA( LPCSTR name )
{
DOS_FULL_NAME full_name;
BY_HANDLE_FILE_INFORMATION info;
if (name == NULL)
{
SetLastError( ERROR_INVALID_PARAMETER );
return -1;
}
if (!DOSFS_GetFullName( name, TRUE, &full_name) )
return -1;
if (!FILE_Stat( full_name.long_name, &info )) return -1;
return info.dwFileAttributes;
}
/**************************************************************************
* GetFileAttributesW (KERNEL32.@)
*/
DWORD WINAPI GetFileAttributesW( LPCWSTR name )
{
LPSTR nameA = HEAP_strdupWtoA( GetProcessHeap(), 0, name );
DWORD res = GetFileAttributesA( nameA );
HeapFree( GetProcessHeap(), 0, nameA );
return res;
}
/***********************************************************************
* 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;
}
/***********************************************************************
* GetFileTime (KERNEL32.@)
*/
BOOL WINAPI GetFileTime( HANDLE hFile, FILETIME *lpCreationTime,
FILETIME *lpLastAccessTime,
FILETIME *lpLastWriteTime )
{
BY_HANDLE_FILE_INFORMATION info;
if (!GetFileInformationByHandle( hFile, &info )) return FALSE;
if (lpCreationTime) *lpCreationTime = info.ftCreationTime;
if (lpLastAccessTime) *lpLastAccessTime = info.ftLastAccessTime;
if (lpLastWriteTime) *lpLastWriteTime = info.ftLastWriteTime;
return TRUE;
}
/***********************************************************************
* CompareFileTime (KERNEL32.@)
*/
INT WINAPI CompareFileTime( LPFILETIME x, LPFILETIME y )
{
if (!x || !y) return -1;
if (x->dwHighDateTime > y->dwHighDateTime)
return 1;
if (x->dwHighDateTime < y->dwHighDateTime)
return -1;
if (x->dwLowDateTime > y->dwLowDateTime)
return 1;
if (x->dwLowDateTime < y->dwLowDateTime)
return -1;
return 0;
}
/***********************************************************************
* FILE_GetTempFileName : utility for GetTempFileName
*/
static UINT FILE_GetTempFileName( LPCSTR path, LPCSTR prefix, UINT unique,
LPSTR buffer, BOOL isWin16 )
{
static UINT unique_temp;
DOS_FULL_NAME full_name;
int i;
LPSTR p;
UINT num;
if ( !path || !prefix || !buffer ) return 0;
if (!unique_temp) unique_temp = time(NULL) & 0xffff;
num = unique ? (unique & 0xffff) : (unique_temp++ & 0xffff);
strcpy( buffer, path );
p = buffer + strlen(buffer);
/* add a \, if there isn't one and path is more than just the drive letter ... */
if ( !((strlen(buffer) == 2) && (buffer[1] == ':'))
&& ((p == buffer) || (p[-1] != '\\'))) *p++ = '\\';
if (isWin16) *p++ = '~';
for (i = 3; (i > 0) && (*prefix); i--) *p++ = *prefix++;
sprintf( p, "%04x.tmp", num );
/* Now try to create it */
if (!unique)
{
do
{
HFILE handle = CreateFileA( buffer, GENERIC_WRITE, 0, NULL,
CREATE_NEW, FILE_ATTRIBUTE_NORMAL, 0 );
if (handle != INVALID_HANDLE_VALUE)
{ /* We created it */
TRACE("created %s\n",
buffer);
CloseHandle( handle );
break;
}
if (GetLastError() != ERROR_FILE_EXISTS)
break; /* No need to go on */
num++;
sprintf( p, "%04x.tmp", num );
} while (num != (unique & 0xffff));
}
/* Get the full path name */
if (DOSFS_GetFullName( buffer, FALSE, &full_name ))
{
/* Check if we have write access in the directory */
if ((p = strrchr( full_name.long_name, '/' ))) *p = '\0';
if (access( full_name.long_name, W_OK ) == -1)
WARN("returns '%s', which doesn't seem to be writeable.\n",
buffer);
}
TRACE("returning %s\n", buffer );
return unique ? unique : num;
}
/***********************************************************************
* GetTempFileNameA (KERNEL32.@)
*/
UINT WINAPI GetTempFileNameA( LPCSTR path, LPCSTR prefix, UINT unique,
LPSTR buffer)
{
return FILE_GetTempFileName(path, prefix, unique, buffer, FALSE);
}
/***********************************************************************
* GetTempFileNameW (KERNEL32.@)
*/
UINT WINAPI GetTempFileNameW( LPCWSTR path, LPCWSTR prefix, UINT unique,
LPWSTR buffer )
{
LPSTR patha,prefixa;
char buffera[144];
UINT ret;
if (!path) return 0;
patha = HEAP_strdupWtoA( GetProcessHeap(), 0, path );
prefixa = HEAP_strdupWtoA( GetProcessHeap(), 0, prefix );
ret = FILE_GetTempFileName( patha, prefixa, unique, buffera, FALSE );
MultiByteToWideChar( CP_ACP, 0, buffera, -1, buffer, MAX_PATH );
HeapFree( GetProcessHeap(), 0, patha );
HeapFree( GetProcessHeap(), 0, prefixa );
return ret;
}
/***********************************************************************
* GetTempFileName (KERNEL.97)
*/
UINT16 WINAPI GetTempFileName16( BYTE drive, LPCSTR prefix, UINT16 unique,
LPSTR buffer )
{
char temppath[144];
if (!(drive & ~TF_FORCEDRIVE)) /* drive 0 means current default drive */
drive |= DRIVE_GetCurrentDrive() + 'A';
if ((drive & TF_FORCEDRIVE) &&
!DRIVE_IsValid( toupper(drive & ~TF_FORCEDRIVE) - 'A' ))
{
drive &= ~TF_FORCEDRIVE;
WARN("invalid drive %d specified\n", drive );
}
if (drive & TF_FORCEDRIVE)
sprintf(temppath,"%c:", drive & ~TF_FORCEDRIVE );
else
GetTempPathA( 132, temppath );
return (UINT16)FILE_GetTempFileName( temppath, prefix, unique, buffer, TRUE );
}
/***********************************************************************
* FILE_DoOpenFile
*
* Implementation of OpenFile16() and OpenFile32().
*/
static HFILE FILE_DoOpenFile( LPCSTR name, OFSTRUCT *ofs, UINT mode,
BOOL win32 )
{
HFILE hFileRet;
FILETIME filetime;
WORD filedatetime[2];
DOS_FULL_NAME full_name;
DWORD access, sharing;
char *p;
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) {
ERR("called with `name' set to NULL ! Please debug.\n");
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;
FILE_ConvertOFMode( mode, &access, &sharing );
/* OF_PARSE simply fills the structure */
if (mode & OF_PARSE)
{
ofs->fFixedDisk = (GetDriveType16( ofs->szPathName[0]-'A' )
!= 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)
{
if ((hFileRet = CreateFileA( name, GENERIC_READ | GENERIC_WRITE,
sharing, NULL, CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL, 0 ))== INVALID_HANDLE_VALUE)
goto error;
goto success;
}
/* If OF_SEARCH is set, ignore the given path */
if ((mode & OF_SEARCH) && !(mode & OF_REOPEN))
{
/* First try the file name as is */
if (DOSFS_GetFullName( name, TRUE, &full_name )) goto found;
/* Now remove the path */
if (name[0] && (name[1] == ':')) name += 2;
if ((p = strrchr( name, '\\' ))) name = p + 1;
if ((p = strrchr( name, '/' ))) name = p + 1;
if (!name[0]) goto not_found;
}
/* Now look for the file */
if (!DIR_SearchPath( NULL, name, NULL, &full_name, win32 )) goto not_found;
found:
TRACE("found %s = %s\n",
full_name.long_name, full_name.short_name );
lstrcpynA( ofs->szPathName, full_name.short_name,
sizeof(ofs->szPathName) );
if (mode & OF_SHARE_EXCLUSIVE)
/* Some InstallShield version uses OF_SHARE_EXCLUSIVE
on the file <tempdir>/_ins0432._mp to determine how
far installation has proceeded.
_ins0432._mp is an executable and while running the
application expects the open with OF_SHARE_ to fail*/
/* Probable FIXME:
As our loader closes the files after loading the executable,
we can't find the running executable with FILE_InUse.
The loader should keep the file open, as Windows does that, too.
*/
{
char *last = strrchr(full_name.long_name,'/');
if (!last)
last = full_name.long_name - 1;
if (GetModuleHandle16(last+1))
{
TRACE("Denying shared open for %s\n",full_name.long_name);
return HFILE_ERROR;
}
}
if (mode & OF_DELETE)
{
if (unlink( full_name.long_name ) == -1) goto not_found;
TRACE("(%s): OF_DELETE return = OK\n", name);
return 1;
}
hFileRet = FILE_CreateFile( full_name.long_name, access, sharing,
NULL, OPEN_EXISTING, 0, 0,
DRIVE_GetFlags(full_name.drive) & DRIVE_FAIL_READ_ONLY );
if (!hFileRet) goto not_found;
GetFileTime( hFileRet, NULL, NULL, &filetime );
FileTimeToDosDateTime( &filetime, &filedatetime[0], &filedatetime[1] );
if ((mode & OF_VERIFY) && (mode & OF_REOPEN))
{
if (memcmp( ofs->reserved, filedatetime, sizeof(ofs->reserved) ))
{
CloseHandle( hFileRet );
WARN("(%s): OF_VERIFY failed\n", name );
/* FIXME: what error here? */
SetLastError( ERROR_FILE_NOT_FOUND );
goto error;
}
}
memcpy( ofs->reserved, filedatetime, sizeof(ofs->reserved) );
success: /* We get here if the open was successful */
TRACE("(%s): OK, return = %d\n", name, hFileRet );
if (win32)
{
if (mode & OF_EXIST) /* Return the handle, but close it first */
CloseHandle( hFileRet );
}
else
{
hFileRet = Win32HandleToDosFileHandle( hFileRet );
if (hFileRet == HFILE_ERROR16) goto error;
if (mode & OF_EXIST) /* Return the handle, but close it first */
_lclose16( hFileRet );
}
return hFileRet;
not_found: /* We get here if the file does not exist */
WARN("'%s' not found or sharing violation\n", name );
SetLastError( ERROR_FILE_NOT_FOUND );
/* fall through */
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;
}
/***********************************************************************
* OpenFile (KERNEL.74)
* OpenFileEx (KERNEL.360)
*/
HFILE16 WINAPI OpenFile16( LPCSTR name, OFSTRUCT *ofs, UINT16 mode )
{
return FILE_DoOpenFile( name, ofs, mode, FALSE );
}
/***********************************************************************
* OpenFile (KERNEL32.@)
*/
HFILE WINAPI OpenFile( LPCSTR name, OFSTRUCT *ofs, UINT mode )
{
return FILE_DoOpenFile( name, ofs, mode, TRUE );
}
/***********************************************************************
* 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 )
{
dos_handles[0] = GetStdHandle(STD_INPUT_HANDLE);
dos_handles[1] = GetStdHandle(STD_OUTPUT_HANDLE);
dos_handles[2] = GetStdHandle(STD_ERROR_HANDLE);
dos_handles[3] = GetStdHandle(STD_ERROR_HANDLE);
dos_handles[4] = GetStdHandle(STD_ERROR_HANDLE);
}
/***********************************************************************
* 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;
for (i = 5; i < DOS_TABLE_SIZE; i++)
if (!dos_handles[i])
{
dos_handles[i] = handle;
TRACE("Got %d for h32 %d\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 && !dos_handles[hfile]) 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;
}
}
/***********************************************************************
* FILE_Dup2
*
* dup2() function for DOS handles.
*/
HFILE16 FILE_Dup2( HFILE16 hFile1, HFILE16 hFile2 )
{
HANDLE new_handle;
if (hFile1 < 5 && !dos_handles[hFile1]) FILE_InitProcessDosHandles();
if ((hFile1 >= DOS_TABLE_SIZE) || (hFile2 >= DOS_TABLE_SIZE) || !dos_handles[hFile1])
{
SetLastError( ERROR_INVALID_HANDLE );
return HFILE_ERROR16;
}
if (hFile2 < 5)
{
FIXME("stdio handle closed, need proper conversion\n" );
SetLastError( ERROR_INVALID_HANDLE );
return HFILE_ERROR16;
}
if (!DuplicateHandle( GetCurrentProcess(), dos_handles[hFile1],
GetCurrentProcess(), &new_handle,
0, FALSE, DUPLICATE_SAME_ACCESS ))
return HFILE_ERROR16;
if (dos_handles[hFile2]) CloseHandle( dos_handles[hFile2] );
dos_handles[hFile2] = new_handle;
return hFile2;
}
/***********************************************************************
* _lclose (KERNEL.81)
*/
HFILE16 WINAPI _lclose16( HFILE16 hFile )
{
if (hFile < 5)
{
FIXME("stdio handle closed, need proper conversion\n" );
SetLastError( ERROR_INVALID_HANDLE );
return HFILE_ERROR16;
}
if ((hFile >= DOS_TABLE_SIZE) || !dos_handles[hFile])
{
SetLastError( ERROR_INVALID_HANDLE );
return HFILE_ERROR16;
}
TRACE("%d (handle32=%d)\n", hFile, dos_handles[hFile] );
CloseHandle( dos_handles[hFile] );
dos_handles[hFile] = 0;
return 0;
}
/***********************************************************************
* _lclose (KERNEL32.@)
*/
HFILE WINAPI _lclose( HFILE hFile )
{
TRACE("handle %d\n", hFile );
return CloseHandle( hFile ) ? 0 : HFILE_ERROR;
}
/***********************************************************************
* GetOverlappedResult (KERNEL32.@)
*
* Check the result of an Asynchronous data transfer from a file.
*
* 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, /* [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 ? */
) {
DWORD r;
TRACE("(%d %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;
}
do {
TRACE("waiting on %p\n",lpOverlapped);
r = WaitForSingleObjectEx(lpOverlapped->hEvent, bWait?INFINITE:0, TRUE);
TRACE("wait on %p returned %ld\n",lpOverlapped,r);
} while (r==STATUS_USER_APC);
if(lpTransferred)
*lpTransferred = lpOverlapped->InternalHigh;
SetLastError(lpOverlapped->Internal);
return (r==WAIT_OBJECT_0);
}
/***********************************************************************
* CancelIo (KERNEL32.@)
*/
BOOL WINAPI CancelIo(HANDLE handle)
{
FIXME("(%d) stub\n",handle);
return FALSE;
}
/***********************************************************************
* 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, int events)
{
LPOVERLAPPED lpOverlapped = ovp->lpOverlapped;
int result, r;
TRACE("%p %p %08x\n", lpOverlapped, ovp->buffer, events );
/* if POLLNVAL, then our fd was closed or we have the wrong fd */
if(events&POLLNVAL)
{
ERR("fd %d invalid for %p\n",ovp->fd,ovp);
r = STATUS_UNSUCCESSFUL;
goto async_end;
}
/* if there are no events, it must be a timeout */
if(events==0)
{
TRACE("read timed out\n");
r = STATUS_TIMEOUT;
goto async_end;
}
/* check to see if the data is ready (non-blocking) */
result = read(ovp->fd, &ovp->buffer[lpOverlapped->InternalHigh],
ovp->count - lpOverlapped->InternalHigh);
if ( (result<0) && ((errno == EAGAIN) || (errno == EINTR)))
{
TRACE("Deferred read %d\n",errno);
r = STATUS_PENDING;
goto async_end;
}
/* check to see if the transfer is complete */
if(result<0)
{
TRACE("read returned errno %d\n",errno);
r = STATUS_UNSUCCESSFUL;
goto async_end;
}
lpOverlapped->InternalHigh += result;
TRACE("read %d more bytes %ld/%d so far\n",result,lpOverlapped->InternalHigh,ovp->count);
if(lpOverlapped->InternalHigh < ovp->count)
r = STATUS_PENDING;
else
r = STATUS_SUCCESS;
async_end:
lpOverlapped->Internal = r;
}
/* flogged from wineserver */
/* add a timeout in milliseconds to an absolute time */
static void add_timeout( struct timeval *when, int timeout )
{
if (timeout)
{
long sec = timeout / 1000;
if ((when->tv_usec += (timeout - 1000*sec) * 1000) >= 1000000)
{
when->tv_usec -= 1000000;
when->tv_sec++;
}
when->tv_sec += sec;
}
}
/***********************************************************************
* FILE_GetTimeout (INTERNAL)
*/
static BOOL FILE_GetTimeout(HANDLE hFile, DWORD txcount, DWORD type, int *timeout)
{
BOOL ret;
SERVER_START_REQ(create_async)
{
req->count = txcount;
req->type = type;
req->file_handle = hFile;
ret = SERVER_CALL();
if(timeout)
*timeout = req->timeout;
}
SERVER_END_REQ;
return !ret;
}
/***********************************************************************
* FILE_ReadFileEx (INTERNAL)
*/
static BOOL FILE_ReadFileEx(HANDLE hFile, LPVOID buffer, DWORD bytesToRead,
LPOVERLAPPED overlapped,
LPOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine)
{
async_private *ovp;
int fd, timeout=0;
TRACE("file %d to buf %p num %ld %p func %p\n",
hFile, buffer, bytesToRead, overlapped, lpCompletionRoutine);
/* check that there is an overlapped struct with an event flag */
if ( (overlapped==NULL) || NtResetEvent( overlapped->hEvent, NULL ) )
{
TRACE("Overlapped not specified or invalid event flag\n");
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
if ( !FILE_GetTimeout(hFile, bytesToRead, ASYNC_TYPE_READ, &timeout ) )
{
TRACE("FILE_GetTimeout failed\n");
return FALSE;
}
fd = FILE_GetUnixHandle( hFile, GENERIC_READ );
if(fd<0)
{
TRACE("Couldn't get FD\n");
return FALSE;
}
ovp = (async_private *) HeapAlloc(GetProcessHeap(), 0, sizeof (async_private));
if(!ovp)
{
TRACE("HeapAlloc Failed\n");
SetLastError(ERROR_NOT_ENOUGH_MEMORY);
close(fd);
return FALSE;
}
ovp->lpOverlapped = overlapped;
ovp->count = bytesToRead;
ovp->completion_func = lpCompletionRoutine;
ovp->timeout = timeout;
gettimeofday(&ovp->tv,NULL);
add_timeout(&ovp->tv,timeout);
ovp->event = POLLIN;
ovp->func = FILE_AsyncReadService;
ovp->buffer = buffer;
ovp->fd = fd;
/* hook this overlap into the pending async operation list */
ovp->next = NtCurrentTeb()->pending_list;
ovp->prev = NULL;
if(ovp->next)
ovp->next->prev = ovp;
NtCurrentTeb()->pending_list = ovp;
return TRUE;
}
/***********************************************************************
* ReadFileEx (KERNEL32.@)
*/
BOOL WINAPI ReadFileEx(HANDLE hFile, LPVOID buffer, DWORD bytesToRead,
LPOVERLAPPED overlapped,
LPOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine)
{
/* FIXME: MS docs say we shouldn't set overlapped->hEvent */
overlapped->Internal = STATUS_PENDING;
overlapped->InternalHigh = 0;
return FILE_ReadFileEx(hFile,buffer,bytesToRead,overlapped,lpCompletionRoutine);
}
/***********************************************************************
* ReadFile (KERNEL32.@)
*/
BOOL WINAPI ReadFile( HANDLE hFile, LPVOID buffer, DWORD bytesToRead,
LPDWORD bytesRead, LPOVERLAPPED overlapped )
{
int unix_handle, result;
DWORD type;
TRACE("%d %p %ld %p %p\n", hFile, buffer, bytesToRead,
bytesRead, overlapped );
if (bytesRead) *bytesRead = 0; /* Do this before anything else */
if (!bytesToRead) return TRUE;
unix_handle = FILE_GetUnixHandleType( hFile, GENERIC_READ, &type );
if (unix_handle == -1)
return FALSE;
switch(type)
{
case FD_TYPE_OVERLAPPED:
if(!overlapped)
{
close(unix_handle);
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
/* see if we can read some data already (this shouldn't block) */
result = read( unix_handle, buffer, bytesToRead );
close(unix_handle);
if(result<0)
{
FILE_SetDosError();
return FALSE;
}
/* if we read enough to keep the app happy, then return now */
if(result>=bytesToRead)
{
*bytesRead = result;
return TRUE;
}
/* at last resort, do an overlapped read */
overlapped->Internal = STATUS_PENDING;
overlapped->InternalHigh = result;
if(!FILE_ReadFileEx(hFile, buffer, bytesToRead, overlapped, NULL))
return FALSE;
/* fail on return, with ERROR_IO_PENDING */
SetLastError(ERROR_IO_PENDING);
return FALSE;
default:
if(overlapped)
{
close(unix_handle);
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
break;
}
/* code for synchronous reads */
while ((result = read( unix_handle, buffer, bytesToRead )) == -1)
{
if ((errno == EAGAIN) || (errno == EINTR)) continue;
if ((errno == EFAULT) && !IsBadWritePtr( buffer, bytesToRead )) continue;
FILE_SetDosError();
break;
}
close( unix_handle );
if (result == -1) return FALSE;
if (bytesRead) *bytesRead = result;
return TRUE;
}
/***********************************************************************
* 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, int events)
{
LPOVERLAPPED lpOverlapped = ovp->lpOverlapped;
int result, r;
TRACE("(%p %p %08x)\n",lpOverlapped,ovp->buffer,events);
/* if POLLNVAL, then our fd was closed or we have the wrong fd */
if(events&POLLNVAL)
{
ERR("fd %d invalid for %p\n",ovp->fd,ovp);
r = STATUS_UNSUCCESSFUL;
goto async_end;
}
/* if there are no events, it must be a timeout */
if(events==0)
{
TRACE("write timed out\n");
r = STATUS_TIMEOUT;
goto async_end;
}
/* write some data (non-blocking) */
result = write(ovp->fd, &ovp->buffer[lpOverlapped->InternalHigh],
ovp->count-lpOverlapped->InternalHigh);
if ( (result<0) && ((errno == EAGAIN) || (errno == EINTR)))
{
r = STATUS_PENDING;
goto async_end;
}
/* check to see if the transfer is complete */
if(result<0)
{
r = STATUS_UNSUCCESSFUL;
goto async_end;
}
lpOverlapped->InternalHigh += result;
TRACE("wrote %d more bytes %ld/%d so far\n",result,lpOverlapped->InternalHigh,ovp->count);
if(lpOverlapped->InternalHigh < ovp->count)
r = STATUS_PENDING;
else
r = STATUS_SUCCESS;
async_end:
lpOverlapped->Internal = r;
}
/***********************************************************************
* WriteFileEx (KERNEL32.@)
*/
BOOL WINAPI WriteFileEx(HANDLE hFile, LPCVOID buffer, DWORD bytesToWrite,
LPOVERLAPPED overlapped,
LPOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine)
{
async_private *ovp;
int timeout=0;
TRACE("file %d to buf %p num %ld %p func %p stub\n",
hFile, buffer, bytesToWrite, overlapped, lpCompletionRoutine);
if ( (overlapped == NULL) || NtResetEvent( overlapped->hEvent, NULL ) )
{
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
overlapped->Internal = STATUS_PENDING;
overlapped->InternalHigh = 0;
if (!FILE_GetTimeout(hFile, bytesToWrite, ASYNC_TYPE_WRITE, &timeout))
{
TRACE("FILE_GetTimeout failed\n");
return FALSE;
}
ovp = (async_private*) HeapAlloc(GetProcessHeap(), 0, sizeof (async_private));
if(!ovp)
{
TRACE("HeapAlloc Failed\n");
SetLastError(ERROR_NOT_ENOUGH_MEMORY);
return FALSE;
}
ovp->lpOverlapped = overlapped;
ovp->timeout = timeout;
gettimeofday(&ovp->tv,NULL);
add_timeout(&ovp->tv,timeout);
ovp->event = POLLOUT;
ovp->func = FILE_AsyncWriteService;
ovp->buffer = (LPVOID) buffer;
ovp->count = bytesToWrite;
ovp->completion_func = lpCompletionRoutine;
ovp->fd = FILE_GetUnixHandle( hFile, GENERIC_WRITE );
if(ovp->fd <0)
{
HeapFree(GetProcessHeap(), 0, ovp);
return FALSE;
}
/* hook this overlap into the pending async operation list */
ovp->next = NtCurrentTeb()->pending_list;
ovp->prev = NULL;
if(ovp->next)
ovp->next->prev = ovp;
NtCurrentTeb()->pending_list = ovp;
SetLastError(ERROR_IO_PENDING);
/* always fail on return, either ERROR_IO_PENDING or other error */
return FALSE;
}
/***********************************************************************
* WriteFile (KERNEL32.@)
*/
BOOL WINAPI WriteFile( HANDLE hFile, LPCVOID buffer, DWORD bytesToWrite,
LPDWORD bytesWritten, LPOVERLAPPED overlapped )
{
int unix_handle, result;
TRACE("%d %p %ld %p %p\n", hFile, buffer, bytesToWrite,
bytesWritten, overlapped );
if (bytesWritten) *bytesWritten = 0; /* Do this before anything else */
if (!bytesToWrite) return TRUE;
/* this will only have impact if the overlappd structure is specified */
if ( overlapped )
return WriteFileEx(hFile, buffer, bytesToWrite, overlapped, NULL);
unix_handle = FILE_GetUnixHandle( hFile, GENERIC_WRITE );
if (unix_handle == -1) return FALSE;
/* synchronous file write */
while ((result = write( unix_handle, buffer, bytesToWrite )) == -1)
{
if ((errno == EAGAIN) || (errno == EINTR)) continue;
if ((errno == EFAULT) && !IsBadReadPtr( buffer, bytesToWrite )) continue;
if (errno == ENOSPC)
SetLastError( ERROR_DISK_FULL );
else
FILE_SetDosError();
break;
}
close( unix_handle );
if (result == -1) return FALSE;
if (bytesWritten) *bytesWritten = result;
return TRUE;
}
/***********************************************************************
* _hread (KERNEL.349)
*/
LONG WINAPI WIN16_hread( HFILE16 hFile, SEGPTR buffer, LONG count )
{
LONG maxlen;
TRACE("%d %08lx %ld\n",
hFile, (DWORD)buffer, count );
/* Some programs pass a count larger than the allocated buffer */
maxlen = GetSelectorLimit16( SELECTOROF(buffer) ) - OFFSETOF(buffer) + 1;
if (count > maxlen) count = maxlen;
return _lread(DosFileHandleToWin32Handle(hFile), MapSL(buffer), count );
}
/***********************************************************************
* _lread (KERNEL.82)
*/
UINT16 WINAPI WIN16_lread( HFILE16 hFile, SEGPTR buffer, UINT16 count )
{
return (UINT16)WIN16_hread( hFile, buffer, (LONG)count );
}
/***********************************************************************
* _lread (KERNEL32.@)
*/
UINT WINAPI _lread( HFILE handle, LPVOID buffer, UINT count )
{
DWORD result;
if (!ReadFile( handle, buffer, count, &result, NULL )) return -1;
return result;
}
/***********************************************************************
* _lread16 (KERNEL.82)
*/
UINT16 WINAPI _lread16( HFILE16 hFile, LPVOID buffer, UINT16 count )
{
return (UINT16)_lread(DosFileHandleToWin32Handle(hFile), buffer, (LONG)count );
}
/***********************************************************************
* _lcreat (KERNEL.83)
*/
HFILE16 WINAPI _lcreat16( LPCSTR path, INT16 attr )
{
return Win32HandleToDosFileHandle( _lcreat( path, attr ) );
}
/***********************************************************************
* _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 CreateFileA( path, GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
CREATE_ALWAYS, attr, 0 );
}
/***********************************************************************
* SetFilePointer (KERNEL32.@)
*/
DWORD WINAPI SetFilePointer( HANDLE hFile, LONG distance, LONG *highword,
DWORD method )
{
DWORD ret = 0xffffffff;
TRACE("handle %d offset %ld high %ld origin %ld\n",
hFile, distance, highword?*highword:0, method );
SERVER_START_REQ( set_file_pointer )
{
req->handle = hFile;
req->low = distance;
req->high = highword ? *highword : (distance >= 0) ? 0 : -1;
/* FIXME: assumes 1:1 mapping between Windows and Unix seek constants */
req->whence = method;
SetLastError( 0 );
if (!SERVER_CALL_ERR())
{
ret = req->new_low;
if (highword) *highword = req->new_high;
}
}
SERVER_END_REQ;
return ret;
}
/***********************************************************************
* _llseek (KERNEL.84)
*
* FIXME:
* Seeking before the start of the file should be allowed for _llseek16,
* but cause subsequent I/O operations to fail (cf. interrupt list)
*
*/
LONG WINAPI _llseek16( HFILE16 hFile, LONG lOffset, INT16 nOrigin )
{
return SetFilePointer( DosFileHandleToWin32Handle(hFile), lOffset, NULL, nOrigin );
}
/***********************************************************************
* _llseek (KERNEL32.@)
*/
LONG WINAPI _llseek( HFILE hFile, LONG lOffset, INT nOrigin )
{
return SetFilePointer( hFile, lOffset, NULL, nOrigin );
}
/***********************************************************************
* _lopen (KERNEL.85)
*/
HFILE16 WINAPI _lopen16( LPCSTR path, INT16 mode )
{
return Win32HandleToDosFileHandle( _lopen( path, mode ) );
}
/***********************************************************************
* _lopen (KERNEL32.@)
*/
HFILE WINAPI _lopen( LPCSTR path, INT mode )
{
DWORD access, sharing;
TRACE("('%s',%04x)\n", path, mode );
FILE_ConvertOFMode( mode, &access, &sharing );
return CreateFileA( path, access, sharing, NULL, OPEN_EXISTING, 0, 0 );
}
/***********************************************************************
* _lwrite (KERNEL.86)
*/
UINT16 WINAPI _lwrite16( HFILE16 hFile, LPCSTR buffer, UINT16 count )
{
return (UINT16)_hwrite( DosFileHandleToWin32Handle(hFile), buffer, (LONG)count );
}
/***********************************************************************
* _lwrite (KERNEL32.@)
*/
UINT WINAPI _lwrite( HFILE hFile, LPCSTR buffer, UINT count )
{
return (UINT)_hwrite( hFile, buffer, (LONG)count );
}
/***********************************************************************
* _hread16 (KERNEL.349)
*/
LONG WINAPI _hread16( HFILE16 hFile, LPVOID buffer, LONG count)
{
return _lread( DosFileHandleToWin32Handle(hFile), buffer, count );
}
/***********************************************************************
* _hread (KERNEL32.@)
*/
LONG WINAPI _hread( HFILE hFile, LPVOID buffer, LONG count)
{
return _lread( hFile, buffer, count );
}
/***********************************************************************
* _hwrite (KERNEL.350)
*/
LONG WINAPI _hwrite16( HFILE16 hFile, LPCSTR buffer, LONG count )
{
return _hwrite( DosFileHandleToWin32Handle(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 )) return HFILE_ERROR;
return 0;
}
if (!WriteFile( handle, buffer, count, &result, NULL ))
return HFILE_ERROR;
return result;
}
/***********************************************************************
* SetHandleCount (KERNEL.199)
*/
UINT16 WINAPI SetHandleCount16( UINT16 count )
{
return SetHandleCount( count );
}
/*************************************************************************
* SetHandleCount (KERNEL32.@)
*/
UINT WINAPI SetHandleCount( UINT count )
{
return min( 256, count );
}
/***********************************************************************
* FlushFileBuffers (KERNEL32.@)
*/
BOOL WINAPI FlushFileBuffers( HANDLE hFile )
{
BOOL ret;
SERVER_START_REQ( flush_file )
{
req->handle = hFile;
ret = !SERVER_CALL_ERR();
}
SERVER_END_REQ;
return ret;
}
/**************************************************************************
* SetEndOfFile (KERNEL32.@)
*/
BOOL WINAPI SetEndOfFile( HANDLE hFile )
{
BOOL ret;
SERVER_START_REQ( truncate_file )
{
req->handle = hFile;
ret = !SERVER_CALL_ERR();
}
SERVER_END_REQ;
return ret;
}
/***********************************************************************
* DeleteFile (KERNEL.146)
*/
BOOL16 WINAPI DeleteFile16( LPCSTR path )
{
return DeleteFileA( path );
}
/***********************************************************************
* DeleteFileA (KERNEL32.@)
*/
BOOL WINAPI DeleteFileA( LPCSTR path )
{
DOS_FULL_NAME full_name;
if (!path)
{
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
TRACE("'%s'\n", path );
if (!*path)
{
ERR("Empty path passed\n");
return FALSE;
}
if (DOSFS_GetDevice( path ))
{
WARN("cannot remove DOS device '%s'!\n", path);
SetLastError( ERROR_FILE_NOT_FOUND );
return FALSE;
}
if (!DOSFS_GetFullName( path, TRUE, &full_name )) return FALSE;
if (unlink( full_name.long_name ) == -1)
{
FILE_SetDosError();
return FALSE;
}
return TRUE;
}
/***********************************************************************
* DeleteFileW (KERNEL32.@)
*/
BOOL WINAPI DeleteFileW( LPCWSTR path )
{
LPSTR xpath = HEAP_strdupWtoA( GetProcessHeap(), 0, path );
BOOL ret = DeleteFileA( xpath );
HeapFree( GetProcessHeap(), 0, xpath );
return ret;
}
/***********************************************************************
* GetFileType (KERNEL32.@)
*/
DWORD WINAPI GetFileType( HANDLE hFile )
{
DWORD ret = FILE_TYPE_UNKNOWN;
SERVER_START_REQ( get_file_info )
{
req->handle = hFile;
if (!SERVER_CALL_ERR()) ret = req->type;
}
SERVER_END_REQ;
return ret;
}
/* check if a file name is for an executable file (.exe or .com) */
inline static BOOL is_executable( const char *name )
{
int len = strlen(name);
if (len < 4) return FALSE;
return (!strcasecmp( name + len - 4, ".exe" ) ||
!strcasecmp( name + len - 4, ".com" ));
}
/**************************************************************************
* MoveFileExA (KERNEL32.@)
*/
BOOL WINAPI MoveFileExA( LPCSTR fn1, LPCSTR fn2, DWORD flag )
{
DOS_FULL_NAME full_name1, full_name2;
TRACE("(%s,%s,%04lx)\n", fn1, fn2, flag);
if (!fn1) {
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
if (!DOSFS_GetFullName( fn1, TRUE, &full_name1 )) return FALSE;
if (fn2) /* !fn2 means delete fn1 */
{
if (DOSFS_GetFullName( fn2, TRUE, &full_name2 ))
{
/* target exists, check if we may overwrite */
if (!(flag & MOVEFILE_REPLACE_EXISTING))
{
/* FIXME: Use right error code */
SetLastError( ERROR_ACCESS_DENIED );
return FALSE;
}
}
else if (!DOSFS_GetFullName( fn2, FALSE, &full_name2 )) return FALSE;
/* Source name and target path are valid */
if (flag & MOVEFILE_DELAY_UNTIL_REBOOT)
{
/* FIXME: (bon@elektron.ikp.physik.th-darmstadt.de 970706)
Perhaps we should queue these command and execute it
when exiting... What about using on_exit(2)
*/
FIXME("Please move existing file '%s' to file '%s' when Wine has finished\n",
full_name1.long_name, full_name2.long_name);
return TRUE;
}
if (full_name1.drive != full_name2.drive)
{
/* use copy, if allowed */
if (!(flag & MOVEFILE_COPY_ALLOWED))
{
/* FIXME: Use right error code */
SetLastError( ERROR_FILE_EXISTS );
return FALSE;
}
return CopyFileA( fn1, fn2, !(flag & MOVEFILE_REPLACE_EXISTING) );
}
if (rename( full_name1.long_name, full_name2.long_name ) == -1)
{
FILE_SetDosError();
return FALSE;
}
if (is_executable( full_name1.long_name ) != is_executable( full_name2.long_name ))
{
struct stat fstat;
if (stat( full_name2.long_name, &fstat ) != -1)
{
if (is_executable( full_name2.long_name ))
/* set executable bit where read bit is set */
fstat.st_mode |= (fstat.st_mode & 0444) >> 2;
else
fstat.st_mode &= ~0111;
chmod( full_name2.long_name, fstat.st_mode );
}
}
return TRUE;
}
else /* fn2 == NULL means delete source */
{
if (flag & MOVEFILE_DELAY_UNTIL_REBOOT)
{
if (flag & MOVEFILE_COPY_ALLOWED) {
WARN("Illegal flag\n");
SetLastError( ERROR_GEN_FAILURE );
return FALSE;
}
/* FIXME: (bon@elektron.ikp.physik.th-darmstadt.de 970706)
Perhaps we should queue these command and execute it
when exiting... What about using on_exit(2)
*/
FIXME("Please delete file '%s' when Wine has finished\n",
full_name1.long_name);
return TRUE;
}
if (unlink( full_name1.long_name ) == -1)
{
FILE_SetDosError();
return FALSE;
}
return TRUE; /* successfully deleted */
}
}
/**************************************************************************
* MoveFileExW (KERNEL32.@)
*/
BOOL WINAPI MoveFileExW( LPCWSTR fn1, LPCWSTR fn2, DWORD flag )
{
LPSTR afn1 = HEAP_strdupWtoA( GetProcessHeap(), 0, fn1 );
LPSTR afn2 = HEAP_strdupWtoA( GetProcessHeap(), 0, fn2 );
BOOL res = MoveFileExA( afn1, afn2, flag );
HeapFree( GetProcessHeap(), 0, afn1 );
HeapFree( GetProcessHeap(), 0, afn2 );
return res;
}
/**************************************************************************
* MoveFileA (KERNEL32.@)
*
* Move file or directory
*/
BOOL WINAPI MoveFileA( LPCSTR fn1, LPCSTR fn2 )
{
DOS_FULL_NAME full_name1, full_name2;
struct stat fstat;
TRACE("(%s,%s)\n", fn1, fn2 );
if (!DOSFS_GetFullName( fn1, TRUE, &full_name1 )) return FALSE;
if (DOSFS_GetFullName( fn2, TRUE, &full_name2 )) {
/* The new name must not already exist */
SetLastError(ERROR_ALREADY_EXISTS);
return FALSE;
}
if (!DOSFS_GetFullName( fn2, FALSE, &full_name2 )) return FALSE;
if (full_name1.drive == full_name2.drive) /* move */
return MoveFileExA( fn1, fn2, MOVEFILE_COPY_ALLOWED );
/* copy */
if (stat( full_name1.long_name, &fstat ))
{
WARN("Invalid source file %s\n",
full_name1.long_name);
FILE_SetDosError();
return FALSE;
}
if (S_ISDIR(fstat.st_mode)) {
/* No Move for directories across file systems */
/* FIXME: Use right error code */
SetLastError( ERROR_GEN_FAILURE );
return FALSE;
}
return CopyFileA(fn1, fn2, TRUE); /*fail, if exist */
}
/**************************************************************************
* MoveFileW (KERNEL32.@)
*/
BOOL WINAPI MoveFileW( LPCWSTR fn1, LPCWSTR fn2 )
{
LPSTR afn1 = HEAP_strdupWtoA( GetProcessHeap(), 0, fn1 );
LPSTR afn2 = HEAP_strdupWtoA( GetProcessHeap(), 0, fn2 );
BOOL res = MoveFileA( afn1, afn2 );
HeapFree( GetProcessHeap(), 0, afn1 );
HeapFree( GetProcessHeap(), 0, afn2 );
return res;
}
/**************************************************************************
* CopyFileA (KERNEL32.@)
*/
BOOL WINAPI CopyFileA( LPCSTR source, LPCSTR dest, BOOL fail_if_exists )
{
HFILE h1, h2;
BY_HANDLE_FILE_INFORMATION info;
UINT count;
BOOL ret = FALSE;
int mode;
char buffer[2048];
if ((h1 = _lopen( source, OF_READ )) == HFILE_ERROR) return FALSE;
if (!GetFileInformationByHandle( h1, &info ))
{
CloseHandle( h1 );
return FALSE;
}
mode = (info.dwFileAttributes & FILE_ATTRIBUTE_READONLY) ? 0444 : 0666;
if ((h2 = CreateFileA( dest, GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
fail_if_exists ? CREATE_NEW : CREATE_ALWAYS,
info.dwFileAttributes, h1 )) == INVALID_HANDLE_VALUE)
{
CloseHandle( h1 );
return FALSE;
}
while ((count = _lread( h1, buffer, sizeof(buffer) )) > 0)
{
char *p = buffer;
while (count > 0)
{
INT res = _lwrite( h2, p, count );
if (res <= 0) goto done;
p += res;
count -= res;
}
}
ret = TRUE;
done:
CloseHandle( h1 );
CloseHandle( h2 );
return ret;
}
/**************************************************************************
* CopyFileW (KERNEL32.@)
*/
BOOL WINAPI CopyFileW( LPCWSTR source, LPCWSTR dest, BOOL fail_if_exists)
{
LPSTR sourceA = HEAP_strdupWtoA( GetProcessHeap(), 0, source );
LPSTR destA = HEAP_strdupWtoA( GetProcessHeap(), 0, dest );
BOOL ret = CopyFileA( sourceA, destA, fail_if_exists );
HeapFree( GetProcessHeap(), 0, sourceA );
HeapFree( GetProcessHeap(), 0, destA );
return ret;
}
/**************************************************************************
* CopyFileExA (KERNEL32.@)
*
* This implementation ignores most of the extra parameters passed-in into
* the "ex" version of the method and calls the CopyFile method.
* It will have to be fixed eventually.
*/
BOOL WINAPI CopyFileExA(LPCSTR sourceFilename,
LPCSTR destFilename,
LPPROGRESS_ROUTINE progressRoutine,
LPVOID appData,
LPBOOL cancelFlagPointer,
DWORD copyFlags)
{
BOOL failIfExists = FALSE;
/*
* Interpret the only flag that CopyFile can interpret.
*/
if ( (copyFlags & COPY_FILE_FAIL_IF_EXISTS) != 0)
{
failIfExists = TRUE;
}
return CopyFileA(sourceFilename, destFilename, failIfExists);
}
/**************************************************************************
* CopyFileExW (KERNEL32.@)
*/
BOOL WINAPI CopyFileExW(LPCWSTR sourceFilename,
LPCWSTR destFilename,
LPPROGRESS_ROUTINE progressRoutine,
LPVOID appData,
LPBOOL cancelFlagPointer,
DWORD copyFlags)
{
LPSTR sourceA = HEAP_strdupWtoA( GetProcessHeap(), 0, sourceFilename );
LPSTR destA = HEAP_strdupWtoA( GetProcessHeap(), 0, destFilename );
BOOL ret = CopyFileExA(sourceA,
destA,
progressRoutine,
appData,
cancelFlagPointer,
copyFlags);
HeapFree( GetProcessHeap(), 0, sourceA );
HeapFree( GetProcessHeap(), 0, destA );
return ret;
}
/***********************************************************************
* SetFileTime (KERNEL32.@)
*/
BOOL WINAPI SetFileTime( HANDLE hFile,
const FILETIME *lpCreationTime,
const FILETIME *lpLastAccessTime,
const FILETIME *lpLastWriteTime )
{
BOOL ret;
SERVER_START_REQ( set_file_time )
{
req->handle = hFile;
if (lpLastAccessTime)
RtlTimeToSecondsSince1970( lpLastAccessTime, (DWORD *)&req->access_time );
else
req->access_time = 0; /* FIXME */
if (lpLastWriteTime)
RtlTimeToSecondsSince1970( lpLastWriteTime, (DWORD *)&req->write_time );
else
req->write_time = 0; /* FIXME */
ret = !SERVER_CALL_ERR();
}
SERVER_END_REQ;
return ret;
}
/**************************************************************************
* LockFile (KERNEL32.@)
*/
BOOL WINAPI LockFile( HANDLE hFile, DWORD dwFileOffsetLow, DWORD dwFileOffsetHigh,
DWORD nNumberOfBytesToLockLow, DWORD nNumberOfBytesToLockHigh )
{
BOOL ret;
SERVER_START_REQ( lock_file )
{
req->handle = hFile;
req->offset_low = dwFileOffsetLow;
req->offset_high = dwFileOffsetHigh;
req->count_low = nNumberOfBytesToLockLow;
req->count_high = nNumberOfBytesToLockHigh;
ret = !SERVER_CALL_ERR();
}
SERVER_END_REQ;
return ret;
}
/**************************************************************************
* 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 nNumberOfBytesToLockLow, DWORD nNumberOfBytesToLockHigh,
LPOVERLAPPED pOverlapped )
{
FIXME("hFile=%d,flags=%ld,reserved=%ld,lowbytes=%ld,highbytes=%ld,overlapped=%p: stub.\n",
hFile, flags, reserved, nNumberOfBytesToLockLow, nNumberOfBytesToLockHigh,
pOverlapped);
if (reserved == 0)
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
else
{
ERR("reserved == %ld: Supposed to be 0??\n", reserved);
SetLastError(ERROR_INVALID_PARAMETER);
}
return FALSE;
}
/**************************************************************************
* UnlockFile (KERNEL32.@)
*/
BOOL WINAPI UnlockFile( HANDLE hFile, DWORD dwFileOffsetLow, DWORD dwFileOffsetHigh,
DWORD nNumberOfBytesToUnlockLow, DWORD nNumberOfBytesToUnlockHigh )
{
BOOL ret;
SERVER_START_REQ( unlock_file )
{
req->handle = hFile;
req->offset_low = dwFileOffsetLow;
req->offset_high = dwFileOffsetHigh;
req->count_low = nNumberOfBytesToUnlockLow;
req->count_high = nNumberOfBytesToUnlockHigh;
ret = !SERVER_CALL_ERR();
}
SERVER_END_REQ;
return ret;
}
/**************************************************************************
* UnlockFileEx (KERNEL32.@)
*/
BOOL WINAPI UnlockFileEx(
HFILE hFile,
DWORD dwReserved,
DWORD nNumberOfBytesToUnlockLow,
DWORD nNumberOfBytesToUnlockHigh,
LPOVERLAPPED lpOverlapped
)
{
FIXME("hFile=%d,reserved=%ld,lowbytes=%ld,highbytes=%ld,overlapped=%p: stub.\n",
hFile, dwReserved, nNumberOfBytesToUnlockLow, nNumberOfBytesToUnlockHigh,
lpOverlapped);
if (dwReserved == 0)
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
else
{
ERR("reserved == %ld: Supposed to be 0??\n", dwReserved);
SetLastError(ERROR_INVALID_PARAMETER);
}
return FALSE;
}
#if 0
struct DOS_FILE_LOCK {
struct DOS_FILE_LOCK * next;
DWORD base;
DWORD len;
DWORD processId;
FILE_OBJECT * dos_file;
/* char * unix_name;*/
};
typedef struct DOS_FILE_LOCK DOS_FILE_LOCK;
static DOS_FILE_LOCK *locks = NULL;
static void DOS_RemoveFileLocks(FILE_OBJECT *file);
/* Locks need to be mirrored because unix file locking is based
* on the pid. Inside of wine there can be multiple WINE processes
* that share the same unix pid.
* Read's and writes should check these locks also - not sure
* how critical that is at this point (FIXME).
*/
static BOOL DOS_AddLock(FILE_OBJECT *file, struct flock *f)
{
DOS_FILE_LOCK *curr;
DWORD processId;
processId = GetCurrentProcessId();
/* check if lock overlaps a current lock for the same file */
#if 0
for (curr = locks; curr; curr = curr->next) {
if (strcmp(curr->unix_name, file->unix_name) == 0) {
if ((f->l_start == curr->base) && (f->l_len == curr->len))
return TRUE;/* region is identic */
if ((f->l_start < (curr->base + curr->len)) &&
((f->l_start + f->l_len) > curr->base)) {
/* region overlaps */
return FALSE;
}
}
}
#endif
curr = HeapAlloc( GetProcessHeap(), 0, sizeof(DOS_FILE_LOCK) );
curr->processId = GetCurrentProcessId();
curr->base = f->l_start;
curr->len = f->l_len;
/* curr->unix_name = HEAP_strdupA( GetProcessHeap(), 0, file->unix_name);*/
curr->next = locks;
curr->dos_file = file;
locks = curr;
return TRUE;
}
static void DOS_RemoveFileLocks(FILE_OBJECT *file)
{
DWORD processId;
DOS_FILE_LOCK **curr;
DOS_FILE_LOCK *rem;
processId = GetCurrentProcessId();
curr = &locks;
while (*curr) {
if ((*curr)->dos_file == file) {
rem = *curr;
*curr = (*curr)->next;
/* HeapFree( GetProcessHeap(), 0, rem->unix_name );*/
HeapFree( GetProcessHeap(), 0, rem );
}
else
curr = &(*curr)->next;
}
}
static BOOL DOS_RemoveLock(FILE_OBJECT *file, struct flock *f)
{
DWORD processId;
DOS_FILE_LOCK **curr;
DOS_FILE_LOCK *rem;
processId = GetCurrentProcessId();
for (curr = &locks; *curr; curr = &(*curr)->next) {
if ((*curr)->processId == processId &&
(*curr)->dos_file == file &&
(*curr)->base == f->l_start &&
(*curr)->len == f->l_len) {
/* this is the same lock */
rem = *curr;
*curr = (*curr)->next;
/* HeapFree( GetProcessHeap(), 0, rem->unix_name );*/
HeapFree( GetProcessHeap(), 0, rem );
return TRUE;
}
}
/* no matching lock found */
return FALSE;
}
/**************************************************************************
* LockFile (KERNEL32.@)
*/
BOOL WINAPI LockFile(
HFILE hFile,DWORD dwFileOffsetLow,DWORD dwFileOffsetHigh,
DWORD nNumberOfBytesToLockLow,DWORD nNumberOfBytesToLockHigh )
{
struct flock f;
FILE_OBJECT *file;
TRACE("handle %d offsetlow=%ld offsethigh=%ld nbyteslow=%ld nbyteshigh=%ld\n",
hFile, dwFileOffsetLow, dwFileOffsetHigh,
nNumberOfBytesToLockLow, nNumberOfBytesToLockHigh);
if (dwFileOffsetHigh || nNumberOfBytesToLockHigh) {
FIXME("Unimplemented bytes > 32bits\n");
return FALSE;
}
f.l_start = dwFileOffsetLow;
f.l_len = nNumberOfBytesToLockLow;
f.l_whence = SEEK_SET;
f.l_pid = 0;
f.l_type = F_WRLCK;
if (!(file = FILE_GetFile(hFile,0,NULL))) return FALSE;
/* shadow locks internally */
if (!DOS_AddLock(file, &f)) {
SetLastError( ERROR_LOCK_VIOLATION );
return FALSE;
}
/* FIXME: Unix locking commented out for now, doesn't work with Excel */
#ifdef USE_UNIX_LOCKS
if (fcntl(file->unix_handle, F_SETLK, &f) == -1) {
if (errno == EACCES || errno == EAGAIN) {
SetLastError( ERROR_LOCK_VIOLATION );
}
else {
FILE_SetDosError();
}
/* remove our internal copy of the lock */
DOS_RemoveLock(file, &f);
return FALSE;
}
#endif
return TRUE;
}
/**************************************************************************
* UnlockFile (KERNEL32.@)
*/
BOOL WINAPI UnlockFile(
HFILE hFile,DWORD dwFileOffsetLow,DWORD dwFileOffsetHigh,
DWORD nNumberOfBytesToUnlockLow,DWORD nNumberOfBytesToUnlockHigh )
{
FILE_OBJECT *file;
struct flock f;
TRACE("handle %d offsetlow=%ld offsethigh=%ld nbyteslow=%ld nbyteshigh=%ld\n",
hFile, dwFileOffsetLow, dwFileOffsetHigh,
nNumberOfBytesToUnlockLow, nNumberOfBytesToUnlockHigh);
if (dwFileOffsetHigh || nNumberOfBytesToUnlockHigh) {
WARN("Unimplemented bytes > 32bits\n");
return FALSE;
}
f.l_start = dwFileOffsetLow;
f.l_len = nNumberOfBytesToUnlockLow;
f.l_whence = SEEK_SET;
f.l_pid = 0;
f.l_type = F_UNLCK;
if (!(file = FILE_GetFile(hFile,0,NULL))) return FALSE;
DOS_RemoveLock(file, &f); /* ok if fails - may be another wine */
/* FIXME: Unix locking commented out for now, doesn't work with Excel */
#ifdef USE_UNIX_LOCKS
if (fcntl(file->unix_handle, F_SETLK, &f) == -1) {
FILE_SetDosError();
return FALSE;
}
#endif
return TRUE;
}
#endif
/**************************************************************************
* GetFileAttributesExA [KERNEL32.@]
*/
BOOL WINAPI GetFileAttributesExA(
LPCSTR lpFileName, GET_FILEEX_INFO_LEVELS fInfoLevelId,
LPVOID lpFileInformation)
{
DOS_FULL_NAME full_name;
BY_HANDLE_FILE_INFORMATION info;
if (lpFileName == NULL) return FALSE;
if (lpFileInformation == NULL) return FALSE;
if (fInfoLevelId == GetFileExInfoStandard) {
LPWIN32_FILE_ATTRIBUTE_DATA lpFad =
(LPWIN32_FILE_ATTRIBUTE_DATA) lpFileInformation;
if (!DOSFS_GetFullName( lpFileName, TRUE, &full_name )) return FALSE;
if (!FILE_Stat( full_name.long_name, &info )) return FALSE;
lpFad->dwFileAttributes = info.dwFileAttributes;
lpFad->ftCreationTime = info.ftCreationTime;
lpFad->ftLastAccessTime = info.ftLastAccessTime;
lpFad->ftLastWriteTime = info.ftLastWriteTime;
lpFad->nFileSizeHigh = info.nFileSizeHigh;
lpFad->nFileSizeLow = info.nFileSizeLow;
}
else {
FIXME("invalid info level %d!\n", fInfoLevelId);
return FALSE;
}
return TRUE;
}
/**************************************************************************
* GetFileAttributesExW [KERNEL32.@]
*/
BOOL WINAPI GetFileAttributesExW(
LPCWSTR lpFileName, GET_FILEEX_INFO_LEVELS fInfoLevelId,
LPVOID lpFileInformation)
{
LPSTR nameA = HEAP_strdupWtoA( GetProcessHeap(), 0, lpFileName );
BOOL res =
GetFileAttributesExA( nameA, fInfoLevelId, lpFileInformation);
HeapFree( GetProcessHeap(), 0, nameA );
return res;
}
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