mirror of
https://github.com/golang/go
synced 2024-10-05 18:31:28 -06:00
55 lines
1.3 KiB
Go
55 lines
1.3 KiB
Go
|
// Copyright 2011 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 freebsd netbsd openbsd
|
||
|
|
||
|
// IP-level socket options for BSD variants
|
||
|
|
||
|
package net
|
||
|
|
||
|
import (
|
||
|
"os"
|
||
|
"syscall"
|
||
|
)
|
||
|
|
||
|
func ipv4MulticastTTL(fd *netFD) (int, error) {
|
||
|
fd.incref()
|
||
|
defer fd.decref()
|
||
|
v, err := syscall.GetsockoptByte(fd.sysfd, syscall.IPPROTO_IP, syscall.IP_MULTICAST_TTL)
|
||
|
if err != nil {
|
||
|
return -1, os.NewSyscallError("getsockopt", err)
|
||
|
}
|
||
|
return int(v), nil
|
||
|
}
|
||
|
|
||
|
func setIPv4MulticastTTL(fd *netFD, v int) error {
|
||
|
fd.incref()
|
||
|
defer fd.decref()
|
||
|
err := syscall.SetsockoptByte(fd.sysfd, syscall.IPPROTO_IP, syscall.IP_MULTICAST_TTL, byte(v))
|
||
|
if err != nil {
|
||
|
return os.NewSyscallError("setsockopt", err)
|
||
|
}
|
||
|
return nil
|
||
|
}
|
||
|
|
||
|
func ipv6TrafficClass(fd *netFD) (int, error) {
|
||
|
fd.incref()
|
||
|
defer fd.decref()
|
||
|
v, err := syscall.GetsockoptInt(fd.sysfd, syscall.IPPROTO_IPV6, syscall.IPV6_TCLASS)
|
||
|
if err != nil {
|
||
|
return -1, os.NewSyscallError("getsockopt", err)
|
||
|
}
|
||
|
return v, nil
|
||
|
}
|
||
|
|
||
|
func setIPv6TrafficClass(fd *netFD, v int) error {
|
||
|
fd.incref()
|
||
|
defer fd.decref()
|
||
|
err := syscall.SetsockoptInt(fd.sysfd, syscall.IPPROTO_IPV6, syscall.IPV6_TCLASS, v)
|
||
|
if err != nil {
|
||
|
return os.NewSyscallError("setsockopt", err)
|
||
|
}
|
||
|
return nil
|
||
|
}
|