[klibc] ipconfig: Write $DHCPLEASETIME as dhcp-lease-time

This patch parses dhcp-lease-time option value in DHCP ACK packet when
ipconfig uses DHCP. This patch writes $DHCPLEASETIME as the value to
/tmp/net-$DEVICE.conf file.

> ipconfig: ignores dhcp options
> http://bugs.debian.org/627166
This Debian Bug report requests the option value.

For example, $DHCPLEASETIME is equal to '3600' which means 3600 seconds.
If $PROTO is not equal to 'dhcp', $DHCPLEASETIME should be ignored.

Signed-off-by: KUMAAN <9maaan@gmail.com>
Acked-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: maximilian attems <max@stro.at>
3 files changed