From de45309a4a87fe6b6b62abfdf1a6c7a99a1b5082 Mon Sep 17 00:00:00 2001
From: Holger Vogt <holger.vogt@uni-due.de>
Date: Sat, 3 Aug 2024 16:50:54 +0200
Subject: [PATCH] prevent a segfault when TSTOP less than TSTART in tran
 command

---
 src/frontend/postcoms.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/frontend/postcoms.c b/src/frontend/postcoms.c
index daa932e6d..06e370dd8 100644
--- a/src/frontend/postcoms.c
+++ b/src/frontend/postcoms.c
@@ -462,7 +462,7 @@ com_sndprint(wordlist* wl)
         ngood += 1;
     }
 
-    if (vecs->v_plot->pl_scale->v_type != SV_TIME)
+    if (!vecs || vecs->v_plot->pl_scale->v_type != SV_TIME)
         return;
 
     if (!ngood) return;