Properly handle empty filters

1 files changed, 2 insertions, 1 deletions

diff --git a/noice.c b/noice.c
index c72417f..fa712ff 100644
--- a/noice.c
+++ b/noice.c
@@ -331,10 +331,11 @@ readln(void)
 
 	echo();
 	curs_set(TRUE);
+	memset(ln, 0, sizeof(ln));
 	getnstr(ln, sizeof(ln) - 1);
 	noecho();
 	curs_set(FALSE);
-	return strdup(ln);
+	return strlen(ln) ? strdup(ln) : NULL;
 }
 
 /*