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yggdrasil-go/src/yggdrasil/multicast_darwin.go

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2019-01-13 18:08:41 +00:00
// +build darwin
package yggdrasil
import "syscall"
import "golang.org/x/sys/unix"
func multicastReuse(network string, address string, c syscall.RawConn) error {
var control error
var reuseport error
var recvanyif error
control = c.Control(func(fd uintptr) {
reuseport = unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_REUSEPORT, 1)
// sys/socket.h: #define SO_RECV_ANYIF 0x1104
recvanyif = unix.SetsockoptInt(int(fd), syscall.SOL_SOCKET, 0x1104, 1)
})
switch {
case reuseport != nil:
return reuseport
case recvanyif != nil:
return recvanyif
default:
return control
}
}