From e78a8258ce2ebe86dd1494067524e4059ed9f314 Mon Sep 17 00:00:00 2001
From: Mike Black W9MDB <mdblack98@yahoo.com>
Date: Wed, 1 Sep 2021 09:06:23 -0500
Subject: [PATCH] Fix gp2000_get_mode bogus sscanf -- potential seg fault
 function would not work

---
 rigs/rs/gp2000.c | 5 ++++-
 rigs/rs/gp2000.h | 2 +-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/rigs/rs/gp2000.c b/rigs/rs/gp2000.c
index cfc34e3bb..f2b7e4026 100644
--- a/rigs/rs/gp2000.c
+++ b/rigs/rs/gp2000.c
@@ -237,7 +237,7 @@ gp2000_get_mode(RIG *rig, vfo_t vfo, rmode_t *mode, pbwidth_t *width)
     int buf_len, retval;
     int nmode;
     char *pmode = "UNKNOWN";
-    int n = sscanf(buf, "%*cI%d", &nmode);
+    int n;
 
 
     rig_debug(RIG_DEBUG_VERBOSE, "%s: vfo=%s\n", __func__, rig_strvfo(vfo));
@@ -252,8 +252,11 @@ gp2000_get_mode(RIG *rig, vfo_t vfo, rmode_t *mode, pbwidth_t *width)
         return retval;
     }
 
+    n = sscanf(buf, "%*cI%d", &nmode);
+
     if (n != 1)
     {
+        rig_debug(RIG_DEBUG_ERR, "%s: unable to parse mode from '%s'\n", __func__, buf);
         return -RIG_EPROTO;
     }
 
diff --git a/rigs/rs/gp2000.h b/rigs/rs/gp2000.h
index 13ff3874c..848f1ca00 100644
--- a/rigs/rs/gp2000.h
+++ b/rigs/rs/gp2000.h
@@ -25,7 +25,7 @@
 #define _XK2000_H 1
 
 #undef BACKEND_VER
-#define BACKEND_VER "20180307"
+#define BACKEND_VER "20210901"
 
 #include <hamlib/rig.h>