mirror of
https://github.com/golang/net.git
synced 2026-03-31 18:37:08 +09:00
c4fa6e0d08
This change uses the internal/socket package to ensure that the ipv4 package works with all supported versions of the Go standard library. Fixes golang/go#19051. Change-Id: If0256007c749c319970533823a10afdc1ffbce31 Reviewed-on: https://go-review.googlesource.com/37036 Reviewed-by: Ian Lance Taylor <iant@golang.org>
58 lines
1.2 KiB
Go
58 lines
1.2 KiB
Go
// Copyright 2012 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.
|
|
|
|
package ipv4
|
|
|
|
import "syscall"
|
|
|
|
// TOS returns the type-of-service field value for outgoing packets.
|
|
func (c *genericOpt) TOS() (int, error) {
|
|
if !c.ok() {
|
|
return 0, syscall.EINVAL
|
|
}
|
|
so, ok := sockOpts[ssoTOS]
|
|
if !ok {
|
|
return 0, errOpNoSupport
|
|
}
|
|
return so.GetInt(c.Conn)
|
|
}
|
|
|
|
// SetTOS sets the type-of-service field value for future outgoing
|
|
// packets.
|
|
func (c *genericOpt) SetTOS(tos int) error {
|
|
if !c.ok() {
|
|
return syscall.EINVAL
|
|
}
|
|
so, ok := sockOpts[ssoTOS]
|
|
if !ok {
|
|
return errOpNoSupport
|
|
}
|
|
return so.SetInt(c.Conn, tos)
|
|
}
|
|
|
|
// TTL returns the time-to-live field value for outgoing packets.
|
|
func (c *genericOpt) TTL() (int, error) {
|
|
if !c.ok() {
|
|
return 0, syscall.EINVAL
|
|
}
|
|
so, ok := sockOpts[ssoTTL]
|
|
if !ok {
|
|
return 0, errOpNoSupport
|
|
}
|
|
return so.GetInt(c.Conn)
|
|
}
|
|
|
|
// SetTTL sets the time-to-live field value for future outgoing
|
|
// packets.
|
|
func (c *genericOpt) SetTTL(ttl int) error {
|
|
if !c.ok() {
|
|
return syscall.EINVAL
|
|
}
|
|
so, ok := sockOpts[ssoTTL]
|
|
if !ok {
|
|
return errOpNoSupport
|
|
}
|
|
return so.SetInt(c.Conn, ttl)
|
|
}
|