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//go:build !windows
package failover
import (
"net"
"github.com/go-errors/errors"
"golang.org/x/net/icmp"
)
func NewPinger(gateway string, size int) (*Pinger, error) {
l, err := icmp.ListenPacket("udp4", "0.0.0.0")
if err != nil {
return nil, errors.WrapPrefix(err, "failed creating ping", 0)
}
return &Pinger{
listener: l,
buffer: make([]byte, size-mtuOverhead),
gateway: &net.UDPAddr{IP: net.ParseIP(gateway)}}, nil
}
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