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23 lines
605 B
Go
23 lines
605 B
Go
// Copyright 2012 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package ipv4
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import (
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"os"
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"syscall"
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)
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func ipv4SendSourceAddress(fd int) (bool, error) {
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v, err := syscall.GetsockoptInt(fd, ianaProtocolIP, syscall.IP_SENDSRCADDR)
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if err != nil {
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return false, os.NewSyscallError("getsockopt", err)
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}
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return v == 1, nil
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}
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func setIPv4SendSourceAddress(fd int, v bool) error {
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return os.NewSyscallError("setsockopt", syscall.SetsockoptInt(fd, ianaProtocolIP, syscall.IP_SENDSRCADDR, boolint(v)))
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}
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