From a28784d6d782e3e001ffada70a10daf7980cafd3 Mon Sep 17 00:00:00 2001
From: Holger Vogt <holger.vogt@uni-due.de>
Date: Tue, 13 Jun 2023 20:05:49 +0200
Subject: [PATCH] Prevent crash if *line == NULL

---
 src/spicelib/parser/inpgtok.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/spicelib/parser/inpgtok.c b/src/spicelib/parser/inpgtok.c
index 58ece2fc1..be17a1a3f 100644
--- a/src/spicelib/parser/inpgtok.c
+++ b/src/spicelib/parser/inpgtok.c
@@ -31,6 +31,11 @@ INPgetTok(char **line, char **token, int gobble)
     char *point;
     int signstate;
 
+    if (!*line) {
+        *token = NULL;
+        return (E_PARMVAL);
+    }
+
     /* scan along throwing away garbage characters until end of line
        or a separation char is found */
     for (point = *line; *point != '\0'; point++) {