net: added InterfaceMultiaddrs

convert.go

-package net
+package manet
 
 import (
 	"fmt"
@@ -70,6 +70,13 @@ func FromNetAddr(a net.Addr) (ma.Multiaddr, error) {
 		}
 		return FromIP(ac.IP)
 
+	case "ip+net":
+		ac, ok := a.(*net.IPNet)
+		if !ok {
+			return nil, errIncorrectNetAddr
+		}
+		return FromIP(ac.IP)
+
 	default:
 		return nil, fmt.Errorf("unknown network %v", a.Network())
 	}

convert_test.go

-package net
+package manet
 
 import (
 	"net"

doc.go

-// Package net provides Multiaddr specific versions of common
+// Package manet provides Multiaddr specific versions of common
 // functions in stdlib's net package. This means wrappers of
 // standard net symbols like net.Dial and net.Listen, as well
 // as conversion to/from net.Addr.
-package net
+package manet

net.go

-package net
+package manet
 
 import (
 	"fmt"
@@ -216,3 +216,20 @@ func Listen(laddr ma.Multiaddr) (Listener, error) {
 		laddr:    laddr,
 	}, nil
 }
+
+// InterfaceMultiaddrs will return the addresses matching net.InterfaceAddrs
+func InterfaceMultiaddrs() ([]ma.Multiaddr, error) {
+	addrs, err := net.InterfaceAddrs()
+	if err != nil {
+		return nil, err
+	}
+
+	maddrs := make([]ma.Multiaddr, len(addrs))
+	for i, a := range addrs {
+		maddrs[i], err = FromNetAddr(a)
+		if err != nil {
+			return nil, err
+		}
+	}
+	return maddrs, nil
+}

net_test.go

-package net
+package manet
 
 import (
 	"bytes"