From 6644afbf8d4dbf966638a8597e59eb0133aeeaf6 Mon Sep 17 00:00:00 2001
From: Mike Black W9MDB <mdblack98@yahoo.com>
Date: Wed, 20 Sep 2023 17:35:29 -0500
Subject: [PATCH] Fix segfault with rigctld/rigctl -m 2 -u
 https://github.com/Hamlib/Hamlib/issues/1386

---
 src/sprintflst.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/sprintflst.c b/src/sprintflst.c
index 682a52f79..f05ef85ef 100644
--- a/src/sprintflst.c
+++ b/src/sprintflst.c
@@ -573,11 +573,14 @@ int rig_sprintf_parm_gran(char *str, int nlen, setting_t parm,
         }
         else if (RIG_PARM_IS_STRING(rig_idx2setting(i)))
         {
+            if (gran[i].step.s)
+            {
             rig_debug(RIG_DEBUG_ERR, "%s: BAND_SELECT?\n", __func__);
             len += sprintf(str + len,
-                "%s(%s)",
+                "%s(%s) ",
                 ms,
                 gran[i].step.s);
+            }
         }
         else
         {