From 42afc70b6a41f32d4e70cea8dfe3e9b1bb9789f6 Mon Sep 17 00:00:00 2001
From: Albrecht Schlosser <albrechts.fltk@online.de>
Date: Thu, 4 Apr 2019 17:20:57 +0200
Subject: Fix potential crash in fluid (issue #14)

trimclassname() would crash if it was given a NULL pointer. Now a
NULL pointer is returned instead.

Fixes #14
---
 fluid/Fl_Window_Type.cxx | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fluid/Fl_Window_Type.cxx b/fluid/Fl_Window_Type.cxx
index e0c8bc0c4..ac1f4dca2 100644
--- a/fluid/Fl_Window_Type.cxx
+++ b/fluid/Fl_Window_Type.cxx
@@ -1479,6 +1479,8 @@ void Fl_Widget_Class_Type::read_property(const char *c) {
 // Convert A::B::C::D to D (i.e. keep only innermost name)
 // This is useful for classes that contain a namespace component
 static const char *trimclassname(const char *n) {
+  if (!n)
+    return NULL;
   const char *nn;
   while((nn = strstr(n, "::"))) {
     n = nn + 2;
-- 
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