80 lines
2.6 KiB
Go
80 lines
2.6 KiB
Go
package test
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import (
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"net"
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"github.com/miekg/dns"
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)
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// ResponseWriter is useful for writing tests. It uses some fixed values for the client. The
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// remote will always be 10.240.0.1 and port 40212. The local address is always 127.0.0.1 and
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// port 53.
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type ResponseWriter struct {
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TCP bool // if TCP is true we return an TCP connection instead of an UDP one.
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RemoteIP string
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}
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// LocalAddr returns the local address, 127.0.0.1:53 (UDP, TCP if t.TCP is true).
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func (t *ResponseWriter) LocalAddr() net.Addr {
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ip := net.ParseIP("127.0.0.1")
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port := 53
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if t.TCP {
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return &net.TCPAddr{IP: ip, Port: port, Zone: ""}
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}
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return &net.UDPAddr{IP: ip, Port: port, Zone: ""}
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}
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// RemoteAddr returns the remote address, defaults to 10.240.0.1:40212 (UDP, TCP is t.TCP is true).
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func (t *ResponseWriter) RemoteAddr() net.Addr {
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remoteIP := "10.240.0.1"
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if t.RemoteIP != "" {
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remoteIP = t.RemoteIP
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}
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ip := net.ParseIP(remoteIP)
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port := 40212
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if t.TCP {
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return &net.TCPAddr{IP: ip, Port: port, Zone: ""}
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}
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return &net.UDPAddr{IP: ip, Port: port, Zone: ""}
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}
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// WriteMsg implements dns.ResponseWriter interface.
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func (t *ResponseWriter) WriteMsg(m *dns.Msg) error { return nil }
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// Write implements dns.ResponseWriter interface.
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func (t *ResponseWriter) Write(buf []byte) (int, error) { return len(buf), nil }
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// Close implements dns.ResponseWriter interface.
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func (t *ResponseWriter) Close() error { return nil }
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// TsigStatus implements dns.ResponseWriter interface.
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func (t *ResponseWriter) TsigStatus() error { return nil }
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// TsigTimersOnly implements dns.ResponseWriter interface.
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func (t *ResponseWriter) TsigTimersOnly(bool) {}
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// Hijack implements dns.ResponseWriter interface.
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func (t *ResponseWriter) Hijack() {}
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// ResponseWriter6 returns fixed client and remote address in IPv6. The remote
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// address is always fe80::42:ff:feca:4c65 and port 40212. The local address is always ::1 and port 53.
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type ResponseWriter6 struct {
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ResponseWriter
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}
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// LocalAddr returns the local address, always ::1, port 53 (UDP, TCP is t.TCP is true).
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func (t *ResponseWriter6) LocalAddr() net.Addr {
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if t.TCP {
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return &net.TCPAddr{IP: net.ParseIP("::1"), Port: 53, Zone: ""}
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}
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return &net.UDPAddr{IP: net.ParseIP("::1"), Port: 53, Zone: ""}
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}
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// RemoteAddr returns the remote address, always fe80::42:ff:feca:4c65 port 40212 (UDP, TCP is t.TCP is true).
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func (t *ResponseWriter6) RemoteAddr() net.Addr {
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if t.TCP {
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return &net.TCPAddr{IP: net.ParseIP("fe80::42:ff:feca:4c65"), Port: 40212, Zone: ""}
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}
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return &net.UDPAddr{IP: net.ParseIP("fe80::42:ff:feca:4c65"), Port: 40212, Zone: ""}
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}
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