From 0356a90805d4372ba0e934c91d9b70aa5ab80e2f Mon Sep 17 00:00:00 2001
From: Gennaro Tortone <gennaro.tortone@na.infn.it>
Date: Thu, 17 May 2018 18:03:02 +0200
Subject: [PATCH] fw-server: add ip option

---
 api/fw-server.py | 27 +++++++++++++++++++--------
 1 file changed, 19 insertions(+), 8 deletions(-)
 mode change 100644 => 100755 api/fw-server.py

diff --git a/api/fw-server.py b/api/fw-server.py
old mode 100644
new mode 100755
index 34f6c7270..867d89709
--- a/api/fw-server.py
+++ b/api/fw-server.py
@@ -33,9 +33,13 @@ Instructions:
 
 Usage:
    ./fw-server.py -d <net_iface>   (default: eth0)
+		or
+	./fw-server.py -i <ip_address>
 
 Example:
-    ./fw-server.py -d wlan0
+	./fw-server.py -d wlan0
+		or
+	./fw-server.py -i 192.168.1.10
 """
 
 import io
@@ -45,16 +49,23 @@ from flask import Flask, send_file
 from optparse import OptionParser
 import netifaces as ni
 
-parser = OptionParser()
+
+usage = "usage: fw-server {-d | -i} arg"
+parser = OptionParser(usage)
 parser.add_option("-d", "--dev", action="store", type="string",
                   dest="netdev", default="eth0", help="network interface (default: eth0)")
+parser.add_option("-i", "--ip", action="store", type="string",
+                  dest="ip", help="IP address to bind")
 (options, args) = parser.parse_args()
 
-try:
-    netip = ni.ifaddresses(options.netdev)[ni.AF_INET][0]['addr']
-except Exception as e:
-    print("E: network interface error - {}".format(e))
-    exit(1)
+if options.ip is None:
+	try:
+		netip = ni.ifaddresses(options.netdev)[ni.AF_INET][0]['addr']
+	except Exception as e:
+		print("E: network interface error - {}".format(e))
+		exit(1)
+else:
+	netip = options.ip
 
 app = Flask(__name__)
 
@@ -69,4 +80,4 @@ if __name__ == "__main__":
     try:
         app.run(host=netip)
     except Exception as e:
-        print("E: {}".format(e))
\ No newline at end of file
+        print("E: {}".format(e))