Mercurial > hg > xemacs-beta
view lwlib/lwlib-utils.h @ 5857:6ec4964c1687
Be more careful about echo_buf arithmetic, event-stream.c.
src/ChangeLog addition:
2015-03-12 Aidan Kehoe <kehoea@parhasard.net>
* event-stream.c (lookup_command_event):
Check whether echo_buf_fill_pointer is negative before using it in
arithmetic, avoiding a crash in GC.
Oddly the old code didn't do this check and didn't crash, but its
echo_buf was from malloced memory, not from our string data, so
there may have been more room to manoeuvre.
author | Aidan Kehoe <kehoea@parhasard.net> |
---|---|
date | Thu, 12 Mar 2015 23:31:42 +0000 |
parents | ade4c7e2c6cb |
children |
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/* Defines some widget utility functions. Copyright (C) 1992 Lucid, Inc. This file is part of the Lucid Widget Library. The Lucid Widget Library is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. The Lucid Widget 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 General Public License for more details. You should have received a copy of the GNU General Public License along with the Lucid Widget Library. If not, see <http://www.gnu.org/licenses/>. */ #ifndef INCLUDED_lwlib_utils_h_ #define INCLUDED_lwlib_utils_h_ void destroy_all_children (Widget widget); void XtNoClearRefreshWidget (Widget); typedef void (*XtApplyToWidgetsProc) (Widget, XtPointer); typedef void* (*XtApplyUntilToWidgetsProc) (Widget, XtPointer); void XtApplyToWidgets (Widget, XtApplyToWidgetsProc, XtPointer); void *XtApplyUntilToWidgets (Widget, XtApplyUntilToWidgetsProc, XtPointer); Widget *XtCompositeChildren (Widget, unsigned int *); /* returns True is the widget is being destroyed, False otherwise */ Boolean XtWidgetBeingDestroyedP (Widget widget); void XtSafelyDestroyWidget (Widget); #ifdef USE_DEBUG_MALLOC #include <dmalloc.h> #endif #endif /* INCLUDED_lwlib_utils_h_ */