From ec6b9f4c2937fcc05fda2d0ec00b7a5989fb0ce1 Mon Sep 17 00:00:00 2001
From: Philippe PITTOLI <p.pittoli@unistra.fr>
Date: Mon, 7 Oct 2019 01:49:39 +0200
Subject: [PATCH] Improved output.

---
 src/main.cr | 31 +++++++++++++++++++------------
 1 file changed, 19 insertions(+), 12 deletions(-)

diff --git a/src/main.cr b/src/main.cr
index b4bbd35..23a9fe7 100644
--- a/src/main.cr
+++ b/src/main.cr
@@ -330,13 +330,19 @@ class WirelessAPSetup
 			str << "\t\tmtu #{mtu}\n" unless mtu.nil?
 
 			# ipv4
-			str << "\t\tinet #{@main_ip_v4}\n"
-			@aliasses_v4.each do |a|
+			unless main_ip_v4.is_a?(NotSetup)
+				str << "\t\tinet #{main_ip_v4}\n"
+			end
+
+			aliasses_v4.each do |a|
 				str << "\t\talias #{a}\n"
 			end
 
 			# ipv6
-			str << "\t\tinet6 #{@main_ip_v6}\n"
+			unless main_ip_v6.is_a?(NotSetup)
+				str << "\t\tinet6 #{main_ip_v6}\n"
+			end
+
 			unless @aliasses_v6.empty?
 				@aliasses_v6.each do |a|
 					str << "\t\talias6 #{a}\n"
@@ -417,7 +423,10 @@ class InterfaceConfiguration
 			end
 
 			# ipv4
-			str << "\tinet #{main_ip_v4}\n"
+			unless main_ip_v4.is_a?(NotSetup)
+				str << "\tinet #{main_ip_v4}\n"
+			end
+
 			unless aliasses_v4.empty?
 				aliasses_v4.each do |a|
 					str << "\talias #{a}\n"
@@ -425,25 +434,23 @@ class InterfaceConfiguration
 			end
 
 			# ipv6
-			str << "\tinet6 #{main_ip_v6}\n"
+			unless main_ip_v6.is_a?(NotSetup)
+				str << "\tinet6 #{main_ip_v6}\n"
+			end
+
 			unless aliasses_v6.empty?
 				aliasses_v6.each do |a|
 					str << "\talias6 #{a}\n"
 				end
 			end
 
-			if dns.empty?
-				str << "\tno dns configured\n"
-			else
+			unless dns.empty?
 				dns.each do |ip|
 					str << "\tdns: #{ip}\n"
 				end
 			end
 
-			if wireless_networks.empty?
-				str << "\tno wireless connection configured\n" if wireless
-			else
-
+			unless wireless_networks.empty?
 				# to improve readability
 				str << "\n"
 				wireless_networks.each do |k,v|