From c7129b79537c3416a581f08460480b1dc284378c Mon Sep 17 00:00:00 2001
From: Gardouille <gardouille@gmail.com>
Date: Tue, 8 Sep 2015 01:15:12 +0200
Subject: [PATCH] Add a new function to test network connection. Display
 "bonjour" function in zlogin only if a network connection is available

---
 zlogin |  7 +++++--
 zshrc  | 13 +++++++++++++
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/zlogin b/zlogin
index 4081122..876e24c 100644
--- a/zlogin
+++ b/zlogin
@@ -14,8 +14,11 @@
 #echo "\n#### uptime ####"
 #uptime
 
-# Affiche un dessin (cf fonction définie dans zshrc)
-bonjour
+# If a network connection is available (check function def in zshrc)
+if ( is_network ); then
+  # Affiche un dessin (cf fonction définie dans zshrc)
+  bonjour
+fi
 
 # Afficher la liste todo (paquet devtodo)
 printf '%b' "${MAGENTA}++++++++++++++++++++++ ${WHITEB}Liste de tâches${RESET} ${MAGENTA}:++++++++++++++++++++++${RESET}\n"
diff --git a/zshrc b/zshrc
index ae956a3..5c1a2e9 100644
--- a/zshrc
+++ b/zshrc
@@ -351,6 +351,19 @@ function ippriv()
   done
 }
 
+# Test if a network connection is available
+function is_network()
+{
+  for path_interface in $(find /sys/class/net/ ! -name lo -type l);
+  do
+    IS_UP=$(grep 1 ${path_interface}/carrier)
+    if [ ${IS_UP} ]; then
+      return 0
+    fi
+  done
+  printf '%b' "${REDB}Not Online${RESET}\n"
+  return 1
+}
 
 #Renomme les fichiers en minuscule
 function lowercase()