22 lines
689 B
Go
22 lines
689 B
Go
//go:build freebsd || openbsd
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// +build freebsd openbsd
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package dhcpd
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import (
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"net"
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)
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// broadcast sends resp to the broadcast address specific for network interface.
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func (c *dhcpConn) broadcast(respData []byte, peer *net.UDPAddr) (n int, err error) {
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// Despite the fact that server4.NewIPv4UDPConn explicitly sets socket
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// options to allow broadcasting, it also binds the connection to a
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// specific interface. On FreeBSD and OpenBSD net.UDPConn.WriteTo
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// causes errors while writing to the addresses that belong to another
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// interface. So, use the broadcast address specific for the interface
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// bound.
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peer.IP = c.bcastIP
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return c.udpConn.WriteTo(respData, peer)
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}
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