From 72901a626c47502b3ab660b8a67ec82698ebe56d Mon Sep 17 00:00:00 2001
From: Albrecht Schlosser <albrechts.fltk@online.de>
Date: Fri, 16 Apr 2021 18:08:15 +0200
Subject: [PATCH] Fix potential buffer overrun (WIN32 only)

---
 src/Fl_Native_File_Chooser_WIN32.cxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Fl_Native_File_Chooser_WIN32.cxx b/src/Fl_Native_File_Chooser_WIN32.cxx
index 9a60f4c19..1308e8976 100644
--- a/src/Fl_Native_File_Chooser_WIN32.cxx
+++ b/src/Fl_Native_File_Chooser_WIN32.cxx
@@ -794,7 +794,7 @@ void Fl_WinAPI_Native_File_Chooser_Driver::add_filter(const char *name_in,
     if ((strlen(name_in)+strlen(winfilter)+3) < sizeof(name)) {
       sprintf(name, "%s (%s)", name_in, winfilter);
     } else {
-      sprintf(name, "%.*s", int(sizeof(name)), name_in);
+      sprintf(name, "%.*s", int(sizeof(name))-1, name_in);
     }
   }
   dnullcat(_parsedfilt, name);