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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build darwin dragonfly freebsd
package syscall_test
import (
"fmt"
"syscall"
)
func parseRoutingMessageHeader(m syscall.RoutingMessage) (addrFlags, error) {
switch m := m.(type) {
case *syscall.RouteMessage:
errno := syscall.Errno(uintptr(m.Header.Errno))
if errno != 0 {
return 0, fmt.Errorf("%T: %v, %#v", m, errno, m.Header)
}
return addrFlags(m.Header.Addrs), nil
case *syscall.InterfaceMessage:
return addrFlags(m.Header.Addrs), nil
case *syscall.InterfaceAddrMessage:
return addrFlags(m.Header.Addrs), nil
case *syscall.InterfaceMulticastAddrMessage:
return addrFlags(m.Header.Addrs), nil
default:
panic(fmt.Sprintf("unknown routing message type: %T", m))
}
}
func parseRoutingSockaddrs(m syscall.RoutingMessage) ([]syscall.Sockaddr, error) {
switch m := m.(type) {
case *syscall.RouteMessage:
sas, err := syscall.ParseRoutingSockaddr(m)
if err != nil {
return nil, fmt.Errorf("%T: %v, %#v", m, err, m.Data)
}
if err = sockaddrs(sas).match(addrFlags(m.Header.Addrs)); err != nil {
return nil, err
}
return sas, nil
case *syscall.InterfaceMessage:
sas, err := syscall.ParseRoutingSockaddr(m)
if err != nil {
return nil, fmt.Errorf("%T: %v, %#v", m, err, m.Data)
}
if err = sockaddrs(sas).match(addrFlags(m.Header.Addrs)); err != nil {
return nil, err
}
return sas, nil
case *syscall.InterfaceAddrMessage:
sas, err := syscall.ParseRoutingSockaddr(m)
if err != nil {
return nil, fmt.Errorf("%T: %v, %#v", m, err, m.Data)
}
if err = sockaddrs(sas).match(addrFlags(m.Header.Addrs)); err != nil {
return nil, err
}
return sas, nil
case *syscall.InterfaceMulticastAddrMessage:
sas, err := syscall.ParseRoutingSockaddr(m)
if err != nil {
return nil, fmt.Errorf("%T: %v, %#v", m, err, m.Data)
}
if err = sockaddrs(sas).match(addrFlags(m.Header.Addrs)); err != nil {
return nil, err
}
return sas, nil
default:
panic(fmt.Sprintf("unknown routing message type: %T", m))
}
}
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