renamed client and package to relay

pkg/relay/helper-sendexit.go

@@ -0,0 +1,21 @@
+package relay
+
+import (
+	"git-indra.lan/indra-labs/indra/pkg/crypto/nonce"
+	"git-indra.lan/indra-labs/indra/pkg/onion"
+	"git-indra.lan/indra-labs/indra/pkg/traffic"
+	"git-indra.lan/indra-labs/indra/pkg/util/slice"
+)
+
+func (en *Engine) SendExit(port uint16, message slice.Bytes, id nonce.ID,
+	target *traffic.Session, hook func(id nonce.ID, b slice.Bytes)) {
+
+	hops := []byte{0, 1, 2, 3, 4, 5}
+	s := make(traffic.Sessions, len(hops))
+	s[2] = target
+	se := en.Select(hops, s)
+	var c traffic.Circuit
+	copy(c[:], se)
+	o := onion.SendExit(port, message, id, se[len(se)-1], c, en.KeySet)
+	en.SendOnion(c[0].AddrPort, o, hook)
+}