1# Set the hostname from DHCP data if required
2
3need_hostname()
4{
5	local hostname=""
6
7	case "$force_hostname" in
8	[Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|1) ;;
9	*) hostname="$(hostname)";;
10	esac
11	case "$hostname" in
12	""|"(none)"|localhost|localhost.localdomain)
13		[ -n "$new_host_name" -o -n "$new_fqdn_name" ];;
14	"$old_host_name"|"$old_fqdn_name")
15		true;;
16	*)
17		false;;
18	esac
19}
20
21set_hostname()
22{
23	if need_hostname; then
24		if [ -n "$new_host_name" ]; then
25			hostname "$new_host_name"
26		elif [ -n "$new_fqdn_name" ]; then
27			hostname "$new_fqdn_name"
28		fi
29	fi
30}
31
32if $if_up; then
33	set_hostname
34fi
35