1 // Copyright 2015 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 // +build darwin dragonfly freebsd 6 7 package syscall_test 8 9 import ( 10 "fmt" 11 "syscall" 12 ) 13 14 func parseRoutingMessageHeader(m syscall.RoutingMessage) (addrFlags, error) { 15 switch m := m.(type) { 16 case *syscall.RouteMessage: 17 errno := syscall.Errno(uintptr(m.Header.Errno)) 18 if errno != 0 { 19 return 0, fmt.Errorf("%T: %v, %#v", m, errno, m.Header) 20 } 21 return addrFlags(m.Header.Addrs), nil 22 case *syscall.InterfaceMessage: 23 return addrFlags(m.Header.Addrs), nil 24 case *syscall.InterfaceAddrMessage: 25 return addrFlags(m.Header.Addrs), nil 26 case *syscall.InterfaceMulticastAddrMessage: 27 return addrFlags(m.Header.Addrs), nil 28 default: 29 panic(fmt.Sprintf("unknown routing message type: %T", m)) 30 } 31 } 32 33 func parseRoutingSockaddrs(m syscall.RoutingMessage) ([]syscall.Sockaddr, error) { 34 switch m := m.(type) { 35 case *syscall.RouteMessage: 36 sas, err := syscall.ParseRoutingSockaddr(m) 37 if err != nil { 38 return nil, fmt.Errorf("%T: %v, %#v", m, err, m.Data) 39 } 40 if err = sockaddrs(sas).match(addrFlags(m.Header.Addrs)); err != nil { 41 return nil, err 42 } 43 return sas, nil 44 case *syscall.InterfaceMessage: 45 sas, err := syscall.ParseRoutingSockaddr(m) 46 if err != nil { 47 return nil, fmt.Errorf("%T: %v, %#v", m, err, m.Data) 48 } 49 if err = sockaddrs(sas).match(addrFlags(m.Header.Addrs)); err != nil { 50 return nil, err 51 } 52 return sas, nil 53 case *syscall.InterfaceAddrMessage: 54 sas, err := syscall.ParseRoutingSockaddr(m) 55 if err != nil { 56 return nil, fmt.Errorf("%T: %v, %#v", m, err, m.Data) 57 } 58 if err = sockaddrs(sas).match(addrFlags(m.Header.Addrs)); err != nil { 59 return nil, err 60 } 61 return sas, nil 62 case *syscall.InterfaceMulticastAddrMessage: 63 sas, err := syscall.ParseRoutingSockaddr(m) 64 if err != nil { 65 return nil, fmt.Errorf("%T: %v, %#v", m, err, m.Data) 66 } 67 if err = sockaddrs(sas).match(addrFlags(m.Header.Addrs)); err != nil { 68 return nil, err 69 } 70 return sas, nil 71 default: 72 panic(fmt.Sprintf("unknown routing message type: %T", m)) 73 } 74 } 75
