diff options
| author | Manolo Gouy <Manolo> | 2018-01-16 06:21:16 +0000 |
|---|---|---|
| committer | Manolo Gouy <Manolo> | 2018-01-16 06:21:16 +0000 |
| commit | fab28479c7252938ab0afdc9ed8a5af6f06fc754 (patch) | |
| tree | 5d9fbe2646110ddb9a27488df7700779ce168549 /src/Fl_Pixmap.cxx | |
| parent | a000e12d6c83ab88b1d1dd67f5ce1a1963b8a18a (diff) | |
Avoid crash in Fl_Pixmap::copy() when the source Fl_Pixmap contains bad pixmap data.
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12635 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
Diffstat (limited to 'src/Fl_Pixmap.cxx')
| -rw-r--r-- | src/Fl_Pixmap.cxx | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/Fl_Pixmap.cxx b/src/Fl_Pixmap.cxx index 04fc6312d..3086af36b 100644 --- a/src/Fl_Pixmap.cxx +++ b/src/Fl_Pixmap.cxx @@ -3,7 +3,7 @@ // // Pixmap drawing code for the Fast Light Tool Kit (FLTK). // -// Copyright 1998-2017 by Bill Spitzak and others. +// Copyright 1998-2018 by Bill Spitzak and others. // // This library is free software. Distribution and use rights are outlined in // the file "COPYING" which should have been included with this file. If this @@ -149,7 +149,9 @@ void Fl_Pixmap::copy_data() { Fl_Image *Fl_Pixmap::copy(int W, int H) { Fl_Pixmap *new_image; // New pixmap - + if (!data()) { // happens with bad pixmap data + return new Fl_Pixmap((char *const*)0); + } // Optimize the simple copy where the width and height are the same... if (W == w() && H == h()) { // Make an exact copy of the image and return it... |