From adde7bc588eed0e868c4b2ef5717c92c613372d3 Mon Sep 17 00:00:00 2001
From: Peter Barker <pbarker@barker.dropbear.id.au>
Date: Thu, 25 Jan 2018 13:10:22 +1100
Subject: [PATCH] AP_Terrain: fix snprintf buffer length warning

Also includes fix from Tridge to use MIN() instead of MAX()
---
 libraries/AP_Terrain/TerrainIO.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libraries/AP_Terrain/TerrainIO.cpp b/libraries/AP_Terrain/TerrainIO.cpp
index c1e684bf28..d08b9d0315 100644
--- a/libraries/AP_Terrain/TerrainIO.cpp
+++ b/libraries/AP_Terrain/TerrainIO.cpp
@@ -173,9 +173,9 @@ void AP_Terrain::open_file(void)
     }
     snprintf(p, 13, "/%c%02u%c%03u.DAT",
              block.lat_degrees<0?'S':'N',
-             abs((int32_t)block.lat_degrees),
+             MIN(abs((int32_t)block.lat_degrees), 99),
              block.lon_degrees<0?'W':'E',
-             abs((int32_t)block.lon_degrees));
+             MIN(abs((int32_t)block.lon_degrees), 999));
 
     // create directory if need be
     if (!directory_created) {