From 668257c87262f044ff3858224ba0646f690cd706 Mon Sep 17 00:00:00 2001 From: Joel Bodenmann Date: Fri, 14 Aug 2015 18:55:36 +0200 Subject: [PATCH] Prevent buffer overflow --- src/gwin/gwin_textedit.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/gwin/gwin_textedit.c b/src/gwin/gwin_textedit.c index 4d1f93a6..f90666ff 100644 --- a/src/gwin/gwin_textedit.c +++ b/src/gwin/gwin_textedit.c @@ -104,6 +104,11 @@ static void _shiftTextRight(char* buffer, size_t bufferSize, size_t index, char // Add a new character else { + // Prevent buffer overflow + if (gw2obj->cursorPos >= gw2obj->bufferSize) { + return; + } + // Shift everything right from the cursor by one character. This includes the '\0'. Then inser the new character. _shiftTextRight(gw2obj->textBuffer, gw2obj->bufferSize, gw2obj->cursorPos++, pke->c[0]); }