From ad2f5a00a4a27f085f470d3d86c52de01ff2c766 Mon Sep 17 00:00:00 2001
From: Daniel Bastos <dbastos@toledo.com>
Date: Wed, 21 Sep 2016 09:16:13 -0300
Subject: Adds support for specifying a host.

If only <port> and <hex> are given, it falls back to previous
behavior: using localhost as <host>.
---
 tools/hex.sh | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/tools/hex.sh b/tools/hex.sh
index cfae14bb6..78cd8fa38 100755
--- a/tools/hex.sh
+++ b/tools/hex.sh
@@ -10,26 +10,34 @@
 
 if [ $# -lt 2 ]
 then
-  echo "USAGE: $0 <port> <hex>"
+  echo "USAGE: $0 <host> <port> <hex>"
+  echo "If only <port> and <hex> are present, <host> defaults to localhost."
   exit 1
 fi
 
+host="$1"; port="$2"; hex="$3";
+
+if [ $# -eq 2 ]
+then
+    host="localhost"; port="$1"; hex="$2";
+fi
+
 send_hex_udp () {
-  echo $2 | xxd -r -p | nc -u -w 0 localhost $1
+  echo "$hex" | xxd -r -p | nc -u -w 0 "$host" "$port"
 }
 
 send_hex_tcp () {
-  echo $2 | xxd -r -p | nc localhost $1
+  echo "$hex" | xxd -r -p | nc "$host" "$port"
 }
 
 send_text_udp () {
-  echo -n -e $2 | nc -u -w 0 localhost $1
+  echo -n -e "$hex" | nc -u -w 0 "$host" "$port"
 }
 
 send_text_tcp () {
-  echo -n -e $2 | nc localhost $1
+  echo -n -e "$hex" | nc "$host" "$port"
 }
 
-send_hex_tcp $1 $2
+send_hex_tcp "$host" "$port" "$hex"
 
 exit $?
-- 
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