From 8ff4156d378b873f0ef9c7673c1e09c30f915b02 Mon Sep 17 00:00:00 2001
From: Steve AB7PA <69524416+ab7pa@users.noreply.github.com>
Date: Sat, 10 Jul 2021 10:40:28 -0700
Subject: [PATCH] fix snrlogging issue (#131)

Add default values to snr variables to avoid fatal errors that prevent
snr.dat and snrlog/files from being written.
---
 files/usr/local/bin/snrlog | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/files/usr/local/bin/snrlog b/files/usr/local/bin/snrlog
index 789a327f..47bc41a3 100755
--- a/files/usr/local/bin/snrlog
+++ b/files/usr/local/bin/snrlog
@@ -85,13 +85,13 @@ function Neighbor.create(macaddress)
 
   n.ip=n:findIp()
   n.hostname=n:findHostname()
-  n.signal=n:findSignal()
-  n.noise=n:findNoise()
-  n.tx_mcs=n:findTxMcs()
-  n.tx_rate=n:findTxRate()
-  n.rx_mcs=n:findRxMcs()
-  n.rx_rate=n:findRxRate()
-  n.lastseen=n:findLastTime()
+  n.signal=n:findSignal() or ""
+  n.noise=n:findNoise() or ""
+  n.tx_mcs=n:findTxMcs() or ""
+  n.tx_rate=n:findTxRate() or ""
+  n.rx_mcs=n:findRxMcs() or ""
+  n.rx_rate=n:findRxRate() or ""
+  n.lastseen=n:findLastTime() or now
   -- check if auto-distance reset is required (new node)
   local efn=n:getExistingDataFileName()
   if efn==nil or ((now-n.lastseen) > 100) then  -- NEW or not recently seen node