1 files changed, 54 insertions, 0 deletions
diff --git a/src/net/iprawsock.go b/src/net/iprawsock.go
new file mode 100644
index 000000000..5cc361390
--- /dev/null
+++ b/src/net/iprawsock.go
@@ -0,0 +1,54 @@
+// Copyright 2010 The Go Authors.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package net
+
+// IPAddr represents the address of an IP end point.
+type IPAddr struct {
+	IP   IP
+	Zone string // IPv6 scoped addressing zone
+}
+
+// Network returns the address's network name, "ip".
+func (a *IPAddr) Network() string { return "ip" }
+
+func (a *IPAddr) String() string {
+	if a == nil {
+		return "<nil>"
+	}
+	if a.Zone != "" {
+		return a.IP.String() + "%" + a.Zone
+	}
+	return a.IP.String()
+}
+
+func (a *IPAddr) toAddr() Addr {
+	if a == nil {
+		return nil
+	}
+	return a
+}
+
+// ResolveIPAddr parses addr as an IP address of the form "host" or
+// "ipv6-host%zone" and resolves the domain name on the network net,
+// which must be "ip", "ip4" or "ip6".
+func ResolveIPAddr(net, addr string) (*IPAddr, error) {
+	if net == "" { // a hint wildcard for Go 1.0 undocumented behavior
+		net = "ip"
+	}
+	afnet, _, err := parseNetwork(net)
+	if err != nil {
+		return nil, err
+	}
+	switch afnet {
+	case "ip", "ip4", "ip6":
+	default:
+		return nil, UnknownNetworkError(net)
+	}
+	a, err := resolveInternetAddr(afnet, addr, noDeadline)
+	if err != nil {
+		return nil, err
+	}
+	return a.toAddr().(*IPAddr), nil
+}