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// Copyright 2013 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 linux netbsd openbsd windows
package ipv6
import "syscall"
// TrafficClass returns the traffic class field value for outgoing
// packets.
func (c *genericOpt) TrafficClass() (int, error) {
if !c.ok() {
return 0, syscall.EINVAL
}
fd, err := c.sysfd()
if err != nil {
return 0, err
}
return getInt(fd, &sockOpts[ssoTrafficClass])
}
// SetTrafficClass sets the traffic class field value for future
// outgoing packets.
func (c *genericOpt) SetTrafficClass(tclass int) error {
if !c.ok() {
return syscall.EINVAL
}
fd, err := c.sysfd()
if err != nil {
return err
}
return setInt(fd, &sockOpts[ssoTrafficClass], tclass)
}
// HopLimit returns the hop limit field value for outgoing packets.
func (c *genericOpt) HopLimit() (int, error) {
if !c.ok() {
return 0, syscall.EINVAL
}
fd, err := c.sysfd()
if err != nil {
return 0, err
}
return getInt(fd, &sockOpts[ssoHopLimit])
}
// SetHopLimit sets the hop limit field value for future outgoing
// packets.
func (c *genericOpt) SetHopLimit(hoplim int) error {
if !c.ok() {
return syscall.EINVAL
}
fd, err := c.sysfd()
if err != nil {
return err
}
return setInt(fd, &sockOpts[ssoHopLimit], hoplim)
}
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