1// Copyright 2011 The Go Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style 3// license that can be found in the LICENSE file. 4 5//go:build !android && cgo && !netgo 6 7package net 8 9/* 10#include <netdb.h> 11*/ 12import "C" 13 14// NOTE(rsc): In theory there are approximately balanced 15// arguments for and against including AI_ADDRCONFIG 16// in the flags (it includes IPv4 results only on IPv4 systems, 17// and similarly for IPv6), but in practice setting it causes 18// getaddrinfo to return the wrong canonical name on Linux. 19// So definitely leave it out. 20const cgoAddrInfoFlags = C.AI_CANONNAME | C.AI_V4MAPPED | C.AI_ALL 21