fix: Do not crash on e.g. dmenu < /dev/null

diff --git a/dmenu.c b/dmenu.c
index 0e7b70b..e926eca 100644 (file)
--- a/dmenu.c
+++ b/dmenu.c
@@ -480,7 +480,7 @@ readstdin(void)
        }
        if (items)
                items[i].text = NULL;
-       inputw = TEXTW(items[imax].text);
+       inputw = items ? TEXTW(items[imax].text) : 0;
        lines = MIN(lines, i);
 }