[hackers] [dwm] Avoid unsigned integer underflow in drw_text() || Raymond Cole

[git]

commit cfb8627a80a334f200f68c2c8f3e384313ebbaf5
Author:     Raymond Cole <r...@wolog.xyz>
AuthorDate: Mon Oct 28 00:34:55 2024 +0000
Commit:     Hiltjo Posthuma <hil...@codemadness.org>
CommitDate: Wed Oct 30 13:02:17 2024 +0100

    Avoid unsigned integer underflow in drw_text()

diff --git a/drw.c b/drw.c
index 344de61..c41e6af 100644
--- a/drw.c
+++ b/drw.c
@@ -248,6 +248,8 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned 
int h, unsigned int lp
        } else {
                XSetForeground(drw->dpy, drw->gc, drw->scheme[invert ? ColFg : 
ColBg].pixel);
                XFillRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w, h);
+               if (w < lpad)
+                       return x + w;
                d = XftDrawCreate(drw->dpy, drw->drawable,
                                  DefaultVisual(drw->dpy, drw->screen),
                                  DefaultColormap(drw->dpy, drw->screen));