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fix UB with the function iscntrl()

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From commit 6818e07291 by NRK, thanks
This commit is contained in:
Hiltjo Posthuma 2022-03-26 17:58:47 +01:00
parent 31fa07b984
commit e73651f12a
1 changed files with 1 additions and 1 deletions
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dmenu.c
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@ -415,7 +415,7 @@ keypress(XKeyEvent *ev)
switch(ksym) { switch(ksym) {
default: default:
insert: insert:
if (!iscntrl(*buf)) if (!iscntrl((unsigned char)*buf))
insert(buf, len); insert(buf, len);
break; break;
case XK_Delete: case XK_Delete: