1 files changed, 29 insertions, 0 deletions
diff --git a/vendor/github.com/rsc/letsencrypt/vendor/github.com/miekg/dns/udp_windows.go b/vendor/github.com/rsc/letsencrypt/vendor/github.com/miekg/dns/udp_windows.go
new file mode 100644
index 000000000..51e532ac2
--- /dev/null
+++ b/vendor/github.com/rsc/letsencrypt/vendor/github.com/miekg/dns/udp_windows.go
@@ -0,0 +1,29 @@
+// +build windows
+
+package dns
+
+import "net"
+
+type SessionUDP struct {
+	raddr *net.UDPAddr
+}
+
+func (s *SessionUDP) RemoteAddr() net.Addr { return s.raddr }
+
+// ReadFromSessionUDP acts just like net.UDPConn.ReadFrom(), but returns a session object instead of a
+// net.UDPAddr.
+func ReadFromSessionUDP(conn *net.UDPConn, b []byte) (int, *SessionUDP, error) {
+	n, raddr, err := conn.ReadFrom(b)
+	if err != nil {
+		return n, nil, err
+	}
+	session := &SessionUDP{raddr.(*net.UDPAddr)}
+	return n, session, err
+}
+
+// WriteToSessionUDP acts just like net.UDPConn.WritetTo(), but uses a *SessionUDP instead of a net.Addr.
+func WriteToSessionUDP(conn *net.UDPConn, b []byte, session *SessionUDP) (int, error) {
+	n, err := conn.WriteTo(b, session.raddr)
+	return n, err
+}
+