blob: 25a2ce5360e2d31fa69448756bed3aa79facea53 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
#!/bin/sh
PREFIX=@PREFIX@
: ${LIBDIR=$PREFIX/lib}
. "$LIBDIR/libalpine.sh"
usage() {
cat <<-__EOF__
usage: setup-dns [-h] [-d DOMAINNAME] [IPADDR...]
Setup ${ROOT}etc/resolv.conf DNS settings
options:
-h Show this help
-d specify search domain name
The optional IPADDR are a list of DNS servers to use.
__EOF__
exit $1
}
while getopts "d:n:h" opt; do
case $opt in
d) DOMAINNAME="$OPTARG";;
h) usage 0;;
n) NAMESERVERS="$OPTARG";;
'?') usage "1" >&2;;
esac
done
shift $(($OPTIND - 1))
conf="${ROOT}etc/resolv.conf"
if [ -f "$conf" ] ; then
domain=$(awk '/^domain/ {print $2}' $conf)
dns=$(awk '/^nameserver/ {printf "%s ",$2}' $conf)
elif fqdn="$(get_fqdn)" && [ -n "$fqdn" ]; then
domain="$fqdn"
fi
if [ -n "$DOMAINNAME" ]; then
domain="$DOMAINNAME"
elif [ $# -eq 0 ]; then
ask "DNS domain name? (e.g 'bar.com')" "$domain"
domain="$resp"
fi
if [ -n "$NAMESERVERS" ] || [ $# -gt 0 ];then
dns="$NAMESERVERS"
else
ask "DNS nameserver(s)?" "${dns% }"
dns="$(echo $resp | tr ',' ' ')"
fi
if [ -n "$domain" ]; then
mkdir -p "${conf%/*}"
echo "search $domain" > $conf
fi
if [ -n "$dns" ] || [ $# -gt 0 ] && [ -f "$conf" ]; then
sed -i -e '/^nameserver/d' $conf
fi
for i in $dns $@; do
mkdir -p "${conf%/*}"
echo "nameserver $i" >> $conf
done
|
