// Copyright (C) 2015 The Syncthing Authors.
//
// This program is free software: you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by the Free
// Software Foundation, either version 3 of the License, or (at your option)
// any later version.
//
// This program is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
// more details.
//
// You should have received a copy of the GNU General Public License along
// with this program. If not, see <http://www.gnu.org/licenses/>.

// +build !windows

package osutil

import (
	"net"
)

func GetLans() ([]*net.IPNet, error) {
	addrs, err := net.InterfaceAddrs()
	if err != nil {
		return nil, err
	}

	nets := make([]*net.IPNet, 0, len(addrs))

	for _, addr := range addrs {
		net, ok := addr.(*net.IPNet)
		if ok {
			nets = append(nets, net)
		}
	}
	return nets, nil
}