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#!/bin/sh
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# dhcp6c-script for Debian/Ubuntu. Jérémie Corbier, April, 2006.
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# resolvconf support by Mattias Guns, May 2006.
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RESOLVCONF="/sbin/resolvconf"
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[ -f /etc/default/wide-dhcpv6-client ] && . /etc/default/wide-dhcpv6-client
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if [ -n "$new_domain_name" -o -n "$new_domain_name_servers" ]; then
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old_resolv_conf=/etc/resolv.conf
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new_resolv_conf=/etc/resolv.conf.dhcp6c-new
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rm -f $new_resolv_conf
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if [ -n "$new_domain_name" ]; then
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echo search $new_domain_name >> $new_resolv_conf
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fi
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if [ -n "$new_domain_name_servers" ]; then
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for nameserver in $new_domain_name_servers; do
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# No need to add an already existing nameserver
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res=$(grep "nameserver $nameserver" $old_resolv_conf)
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if [ -z "$res" ]; then
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echo nameserver $nameserver >> $new_resolv_conf
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fi
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done
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fi
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# Use resolvconf if available
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if [ -h "$old_resolv_conf" -a -x "$RESOLVCONF" ]; then
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for IFACE in $INTERFACES; do
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cat $new_resolv_conf | $RESOLVCONF -a $IFACE
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done
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else
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# To preserve IPv4 informations...
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cat $old_resolv_conf >> $new_resolv_conf
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chown --reference=$old_resolv_conf $new_resolv_conf
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chmod --reference=$old_resolv_conf $new_resolv_conf
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mv -f $new_resolv_conf $old_resolv_conf
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fi
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fi
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exit 0
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