mirror of
https://github.com/zerotier/edge.git
synced 2026-05-22 16:25:05 -07:00
Adam Ierymenko
68 lines
1.2 KiB
Bash
Executable File
68 lines
1.2 KiB
Bash
Executable File
#!/bin/sh
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PREFIX=
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. "$PREFIX/lib/libalpine.sh"
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usage() {
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cat <<-__EOF__
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usage: setup-dns [-h] [-d domain name] [IPADDR...]
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Setup ${ROOT}etc/resolv.conf DNS settings
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options:
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-h Show this help
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-d specify search domain name
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The optional IPADDR are a list of DNS servers to use.
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__EOF__
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exit 1
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}
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while getopts "d:n:h" opt; do
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case $opt in
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d) DOMAINNAME="$OPTARG";;
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h) usage;;
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n) NAMESERVERS="$OPTARG";;
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esac
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done
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shift $(($OPTIND - 1))
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conf="${ROOT}etc/resolv.conf"
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if [ -f "$conf" ] ; then
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domain=$(awk '/^domain/ {print $2}' $conf)
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dns=$(awk '/^nameserver/ {print $2}' $conf)
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fi
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if [ -n "$DOMAINNAME" ];then
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domain="$DOMAINNAME"
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else
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echon "DNS domain name? (e.g 'bar.com') [$domain] "
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default_read domain $domain
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fi
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if [ -n "$NAMESERVERS" ] || [ $# -gt 0 ];then
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dns="$NAMESERVERS"
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else
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echon "DNS nameserver(s)? ["
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for i in $dns ; do
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echon "$i "
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done
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echon "] "
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default_read dns "$dns"
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fi
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if [ "$domain" != "" ]; then
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mkdir -p "${conf%/*}"
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echo "search $domain" > $conf
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fi
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if [ -n "$dns" ] || [ $# -gt 0 ] && [ -f "$conf" ]; then
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sed -i -e '/^nameserver/d' $conf
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fi
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for i in $dns $@; do
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mkdir -p "${conf%/*}"
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echo "nameserver $i" >> $conf
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done
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