You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
57 lines
1.2 KiB
57 lines
1.2 KiB
// 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) |
|
}
|
|
|