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1 // Copyright 2012 The Go Authors. All rights reserved. | 1 // Copyright 2012 The Go Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style | 2 // Use of this source code is governed by a BSD-style |
3 // license that can be found in the LICENSE file. | 3 // license that can be found in the LICENSE file. |
4 | 4 |
5 package ipv4 | 5 package ipv4 |
6 | 6 |
7 import ( | 7 import ( |
8 "os" | 8 "os" |
9 "syscall" | 9 "syscall" |
10 ) | 10 ) |
11 | 11 |
12 func ipv4SendSourceAddress(f *os.File) (bool, error) { | 12 func ipv4SendSourceAddress(fd int) (bool, error) { |
13 » v, err := syscall.GetsockoptInt(int(f.Fd()), syscall.IPPROTO_IP, syscall
.IP_SENDSRCADDR) | 13 » v, err := syscall.GetsockoptInt(fd, syscall.IPPROTO_IP, syscall.IP_SENDS
RCADDR) |
14 if err != nil { | 14 if err != nil { |
15 return false, os.NewSyscallError("getsockopt", err) | 15 return false, os.NewSyscallError("getsockopt", err) |
16 } | 16 } |
17 return v == 1, nil | 17 return v == 1, nil |
18 } | 18 } |
19 | 19 |
20 func setIPv4SendSourceAddress(f *os.File, v bool) error { | 20 func setIPv4SendSourceAddress(fd int, v bool) error { |
21 » err := syscall.SetsockoptInt(int(f.Fd()), syscall.IPPROTO_IP, syscall.IP
_SENDSRCADDR, boolint(v)) | 21 » err := syscall.SetsockoptInt(fd, syscall.IPPROTO_IP, syscall.IP_SENDSRCA
DDR, boolint(v)) |
22 if err != nil { | 22 if err != nil { |
23 return os.NewSyscallError("setsockopt", err) | 23 return os.NewSyscallError("setsockopt", err) |
24 } | 24 } |
25 return nil | 25 return nil |
26 } | 26 } |
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