Add get-current-resolvers.sh

2012-07-31 17:19:01 -07:00
parent 1a7bac56e8
commit f3e11a2b41
1 changed files with 28 additions and 0 deletions
@@ -0,0 +1,28 @@
+#! /bin/ksh
+
+. ./common.inc
+
+[ -r /etc/resolv.conf ] || exit 0
+ips_i=""
+while read line; do
+  case "$line" in
+    nameserver\ *)
+      ip=$(echo "$line" | sed -e 's/nameserver *//' -e 's/ *//')
+      ips_i="$ips_i $ip"
+    ;;
+  esac
+done < /etc/resolv.conf
+
+typeset -A found
+ips=""
+for ip_i in $ips_i; do
+  if [ ! ${found["$ip_i"]} ]; then
+    if [ "$ips" ]; then
+      ips="$ips "
+    fi
+    ips="$ips$ip_i"
+    found["$ip_i"]=1
+  fi
+done
+
+echo "$ips"