/usr/share/gocode/src/code.google.com/p/go.net/ipv4/genericopt_posix.go is in golang-go.net-dev 0.0~hg20131201-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 | // 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.
// +build darwin freebsd linux netbsd openbsd windows
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
}
fd, err := c.sysfd()
if err != nil {
return 0, err
}
return ipv4TOS(fd)
}
// 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
}
fd, err := c.sysfd()
if err != nil {
return err
}
return setIPv4TOS(fd, 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
}
fd, err := c.sysfd()
if err != nil {
return 0, err
}
return ipv4TTL(fd)
}
// 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
}
fd, err := c.sysfd()
if err != nil {
return err
}
return setIPv4TTL(fd, ttl)
}
|