1 files changed, 36 insertions, 0 deletions
diff --git a/libgo/go/net/cgo_resnew.go b/libgo/go/net/cgo_resnew.go
new file mode 100644
index 00000000000..ebca1bda5a8
--- /dev/null
+++ b/libgo/go/net/cgo_resnew.go
@@ -0,0 +1,36 @@
+// Copyright 2015 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.
+
+// +build cgo,!netgo
+// +build darwin linux,!android netbsd solaris
+
+package net
+
+/*
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include <netdb.h>
+*/
+
+import (
+	"syscall"
+)
+
+//extern getnameinfo
+func libc_getnameinfo(*syscall.RawSockaddr, syscall.Socklen_t, *byte, syscall.Size_t, *byte, syscall.Size_t, int) int
+
+func cgoNameinfoPTR(b []byte, sa *syscall.RawSockaddr, salen syscall.Socklen_t) (int, error) {
+	syscall.Entersyscall()
+	gerrno := libc_getnameinfo(sa, salen, &b[0], syscall.Size_t(len(b)), nil, 0, syscall.NI_NAMEREQD)
+	syscall.Exitsyscall()
+	var err error
+	if gerrno == syscall.EAI_SYSTEM {
+		errno := syscall.GetErrno()
+		if errno != 0 {
+			err = errno
+		}
+	}
+	return gerrno, err
+}