commit e73651f12a406629778f02d8e5acbe2caec0dfc2
Author: Hiltjo Posthuma <[email protected]>
AuthorDate: Sat Mar 26 17:58:47 2022 +0100
Commit: Hiltjo Posthuma <[email protected]>
CommitDate: Sat Mar 26 17:58:47 2022 +0100
fix UB with the function iscntrl()
From commit 6818e07291f3b2913e687c8ec3d3fe4711724050 by NRK, thanks
diff --git a/dmenu.c b/dmenu.c
index 085dc29..839f6cc 100644
--- a/dmenu.c
+++ b/dmenu.c
@@ -415,7 +415,7 @@ keypress(XKeyEvent *ev)
switch(ksym) {
default:
insert:
- if (!iscntrl(*buf))
+ if (!iscntrl((unsigned char)*buf))
insert(buf, len);
break;
case XK_Delete:
