From 978429018b18a42c0af0c6631123dc5ae20b3ac7 Mon Sep 17 00:00:00 2001
From: Jim Monte <jimmonte@users.sourceforge.net>
Date: Sat, 15 Jun 2019 00:34:11 +0200
Subject: [PATCH] [PATCH #73] Fixed crash when attempting to set a breakpoint
 without a  circuit loaded.

---
 src/frontend/breakp.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/frontend/breakp.c b/src/frontend/breakp.c
index 8fa90720e..9256a5368 100644
--- a/src/frontend/breakp.c
+++ b/src/frontend/breakp.c
@@ -36,6 +36,12 @@ static int steps = 0;
 void
 com_stop(wordlist *wl)
 {
+    /* Check for an active circuit */
+    if (ft_curckt == (struct circ *) NULL) {
+        fprintf(cp_err, "No circuit loaded. Stopping is not possible.\n");
+        return;
+    }
+
     struct dbcomm *thisone = NULL;
     struct dbcomm *d = NULL;
     char *s, buf[64];