19 lines
376 B
Go
19 lines
376 B
Go
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// +build openbsd
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package dhcpv4
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import (
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"net"
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"syscall"
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)
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// BindToInterface emulates linux's SO_BINDTODEVICE option for a socket by using
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// IP_RECVIF.
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func BindToInterface(fd int, ifname string) error {
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iface, err := net.InterfaceByName(ifname)
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if err != nil {
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return err
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}
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return syscall.SetsockoptInt(fd, syscall.IPPROTO_IP, syscall.IP_RECVIF, iface.Index)
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}
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