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19 lines
659 B
Go
19 lines
659 B
Go
//go: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 specific
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// interface. On FreeBSD and OpenBSD net.UDPConn.WriteTo causes errors
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// while writing to the addresses that belong to another interface. So, use
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// the broadcast address specific for the interface 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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