From 85f46e5fc0a71facf12f6eace17ad914efd75ceb Mon Sep 17 00:00:00 2001
From: Kartik Mohta <kartikmohta@gmail.com>
Date: Mon, 11 Dec 2017 19:09:31 -0500
Subject: [PATCH] Minor fixes for very old devices

---
 ublox_gps/include/ublox_gps/node.h | 2 +-
 ublox_gps/src/node.cpp             | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/ublox_gps/include/ublox_gps/node.h b/ublox_gps/include/ublox_gps/node.h
index 2adc6b27..8231894e 100644
--- a/ublox_gps/include/ublox_gps/node.h
+++ b/ublox_gps/include/ublox_gps/node.h
@@ -585,7 +585,7 @@ class UbloxNode : public virtual ComponentInterface {
   std::vector<boost::shared_ptr<ComponentInterface> > components_;
 
   //! Determined From Mon VER
-  float protocol_version_;
+  float protocol_version_ = 0;
   // Variables set from parameter server
   //! Device port
   std::string device_;
diff --git a/ublox_gps/src/node.cpp b/ublox_gps/src/node.cpp
index d8688737..16b1fef2 100644
--- a/ublox_gps/src/node.cpp
+++ b/ublox_gps/src/node.cpp
@@ -366,7 +366,8 @@ void UbloxNode::processMonVer() {
   if(protocol_version_ < 18) {
     // Final line contains supported GNSS delimited by ;
     std::vector<std::string> strs;
-    boost::split(strs, extension[extension.size()-1], boost::is_any_of(";"));
+    if(extension.size() > 0)
+      boost::split(strs, extension[extension.size()-1], boost::is_any_of(";"));
     for(size_t i = 0; i < strs.size(); i++)
       supported.insert(strs[i]);
   } else {