github.com/yggdrasil-network/yggdrasil-go@v0.5.6/src/core/link_tcp_darwin.go (about) 1 //go:build darwin 2 // +build darwin 3 4 package core 5 6 import ( 7 "syscall" 8 9 "golang.org/x/sys/unix" 10 ) 11 12 // WARNING: This context is used both by net.Dialer and net.Listen in tcp.go 13 14 func (t *linkTCP) tcpContext(network, address string, c syscall.RawConn) error { 15 var control error 16 var recvanyif error 17 18 control = c.Control(func(fd uintptr) { 19 // sys/socket.h: #define SO_RECV_ANYIF 0x1104 20 recvanyif = unix.SetsockoptInt(int(fd), syscall.SOL_SOCKET, 0x1104, 1) 21 }) 22 23 switch { 24 case recvanyif != nil: 25 return recvanyif 26 default: 27 return control 28 } 29 } 30 31 func (t *linkTCP) getControl(sintf string) func(string, string, syscall.RawConn) error { 32 return t.tcpContext 33 }