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Added support for inter-process GetWindowWord. 

Do better range checking on the window extra bytes.
This commit is contained in:
Alexandre Julliard 2003-12-10 01:34:51 +00:00
parent d5b4232a3f
commit ebf1243ec1
5 changed files with 40 additions and 35 deletions
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6
include/wine/server_protocol.h
View File

@ -2605,6 +2605,7 @@ struct set_window_info_request
void* instance;
void* user_data;
int extra_offset;
size_t extra_size;
unsigned int extra_value;
};
struct set_window_info_reply
@ -2622,8 +2623,7 @@ struct set_window_info_reply
#define SET_WIN_ID 0x04
#define SET_WIN_INSTANCE 0x08
#define SET_WIN_USERDATA 0x10
#define SET_WIN_EXTRAWORD 0x20
#define SET_WIN_EXTRALONG 0x40
#define SET_WIN_EXTRA 0x20
@ -3673,6 +3673,6 @@ union generic_reply
struct set_global_windows_reply set_global_windows_reply;
};
#define SERVER_PROTOCOL_VERSION 127
#define SERVER_PROTOCOL_VERSION 128
#endif /* __WINE_WINE_SERVER_PROTOCOL_H */

4
server/protocol.def
View File

@ -1834,6 +1834,7 @@ enum message_type
void* instance; /* creator instance */
void* user_data; /* user-specific data */
int extra_offset; /* offset to set in extra bytes */
size_t extra_size; /* size to set in extra bytes */
unsigned int extra_value; /* value to set in extra bytes */
@REPLY
unsigned int old_style; /* old window style */
@ -1848,8 +1849,7 @@ enum message_type
#define SET_WIN_ID 0x04
#define SET_WIN_INSTANCE 0x08
#define SET_WIN_USERDATA 0x10
#define SET_WIN_EXTRAWORD 0x20
#define SET_WIN_EXTRALONG 0x40
#define SET_WIN_EXTRA 0x20
/* Get a list of the window parents, up to the root of the tree */

1
server/trace.c
View File

@ -2157,6 +2157,7 @@ static void dump_set_window_info_request( const struct set_window_info_request *
fprintf( stderr, " instance=%p,", req->instance );
fprintf( stderr, " user_data=%p,", req->user_data );
fprintf( stderr, " extra_offset=%d,", req->extra_offset );
fprintf( stderr, " extra_size=%d,", req->extra_size );
fprintf( stderr, " extra_value=%08x", req->extra_value );
}

22
server/window.c
View File

@ -586,20 +586,20 @@ DECL_HANDLER(set_window_info)
set_error( STATUS_ACCESS_DENIED );
return;
}
if (req->extra_offset < -1 || req->extra_offset >= win->nb_extra_bytes)
if (req->extra_size > sizeof(req->extra_value) ||
req->extra_offset < -1 ||
req->extra_offset > win->nb_extra_bytes - (int)req->extra_size)
{
set_error( STATUS_INVALID_PARAMETER );
set_win32_error( ERROR_INVALID_INDEX );
return;
}
if (req->extra_offset != -1)
{
memcpy( &reply->old_extra_value, win->extra_bytes + req->extra_offset,
min( sizeof(reply->old_extra_value),
(size_t)(win->nb_extra_bytes - req->extra_offset) ));
memcpy( &reply->old_extra_value, win->extra_bytes + req->extra_offset, req->extra_size );
}
else if (req->flags & (SET_WIN_EXTRAWORD|SET_WIN_EXTRALONG))
else if (req->flags & SET_WIN_EXTRA)
{
set_error( STATUS_INVALID_PARAMETER );
set_win32_error( ERROR_INVALID_INDEX );
return;
}
reply->old_style = win->style;
@ -612,12 +612,8 @@ DECL_HANDLER(set_window_info)
if (req->flags & SET_WIN_ID) win->id = req->id;
if (req->flags & SET_WIN_INSTANCE) win->instance = req->instance;
if (req->flags & SET_WIN_USERDATA) win->user_data = req->user_data;
if (req->flags & (SET_WIN_EXTRAWORD|SET_WIN_EXTRALONG))
{
const int len = (req->flags & SET_WIN_EXTRALONG) ? sizeof(int) : sizeof(short);
memcpy( win->extra_bytes + req->extra_offset, &req->extra_value,
min( len, win->nb_extra_bytes - req->extra_offset ));
}
if (req->flags & SET_WIN_EXTRA) memcpy( win->extra_bytes + req->extra_offset,
&req->extra_value, req->extra_size );
}

42
windows/win.c
View File

@ -1752,17 +1752,24 @@ WORD WINAPI GetWindowWord( HWND hwnd, INT offset )
}
if (wndPtr == WND_OTHER_PROCESS)
{
if (IsWindow( hwnd ))
FIXME( "(%d) not supported yet on other process window %p\n", offset, hwnd );
SetLastError( ERROR_INVALID_WINDOW_HANDLE );
return 0;
SERVER_START_REQ( set_window_info )
{
req->handle = hwnd;
req->flags = 0; /* don't set anything, just retrieve */
req->extra_offset = offset;
req->extra_size = sizeof(retvalue);
if (!wine_server_call_err( req ))
memcpy( &retvalue, &reply->old_extra_value, sizeof(retvalue) );
}
SERVER_END_REQ;
return retvalue;
}
if (offset > (int)(wndPtr->cbWndExtra - sizeof(WORD)))
{
WARN("Invalid offset %d\n", offset );
SetLastError( ERROR_INVALID_INDEX );
}
else retvalue = *(WORD *)(((char *)wndPtr->wExtra) + offset);
else memcpy( &retvalue, (char *)wndPtr->wExtra + offset, sizeof(retvalue) );
WIN_ReleasePtr( wndPtr );
return retvalue;
}
@ -1834,14 +1841,15 @@ WORD WINAPI SetWindowWord( HWND hwnd, INT offset, WORD newval )
SERVER_START_REQ( set_window_info )
{
req->handle = hwnd;
req->flags = SET_WIN_EXTRAWORD;
req->flags = SET_WIN_EXTRA;
req->extra_offset = offset;
req->extra_value = newval;
req->extra_size = sizeof(newval);
memcpy( &req->extra_value, &newval, sizeof(newval) );
if (!wine_server_call_err( req ))
{
WORD *ptr = (WORD *)(((char *)wndPtr->wExtra) + offset);
retval = *ptr;
*ptr = newval;
void *ptr = (char *)wndPtr->wExtra + offset;
memcpy( &retval, ptr, sizeof(retval) );
memcpy( ptr, &newval, sizeof(newval) );
}
}
SERVER_END_REQ;
@ -1885,6 +1893,7 @@ static LONG WIN_GetWindowLong( HWND hwnd, INT offset, WINDOWPROCTYPE type )
req->handle = hwnd;
req->flags = 0; /* don't set anything, just retrieve */
req->extra_offset = (offset >= 0) ? offset : -1;
req->extra_size = (offset >= 0) ? sizeof(retvalue) : 0;
if (!wine_server_call_err( req ))
{
switch(offset)
@ -1900,8 +1909,6 @@ static LONG WIN_GetWindowLong( HWND hwnd, INT offset, WINDOWPROCTYPE type )
break;
}
}
else if (offset >= 0 && GetLastError() == ERROR_INVALID_PARAMETER)
SetLastError( ERROR_INVALID_INDEX );
}
SERVER_END_REQ;
return retvalue;
@ -2094,9 +2101,10 @@ static LONG WIN_SetWindowLong( HWND hwnd, INT offset, LONG newval,
req->user_data = (void *)newval;
break;
default:
req->flags = SET_WIN_EXTRALONG;
req->flags = SET_WIN_EXTRA;
req->extra_offset = offset;
req->extra_value = newval;
req->extra_size = sizeof(newval);
memcpy( &req->extra_value, &newval, sizeof(newval) );
}
if ((ok = !wine_server_call_err( req )))
{
@ -2124,9 +2132,9 @@ static LONG WIN_SetWindowLong( HWND hwnd, INT offset, LONG newval,
break;
default:
{
LONG *ptr = (LONG *)((char *)wndPtr->wExtra + offset);
retval = *ptr;
*ptr = newval;
void *ptr = (char *)wndPtr->wExtra + offset;
memcpy( &retval, ptr, sizeof(retval) );
memcpy( ptr, &newval, sizeof(newval) );
}
break;
}