cgo_linux.go

Documentation: net

     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  // +build !android,cgo,!netgo
     7  
     8  package net
     9  
    10  /*
    11  #include <netdb.h>
    12  */
    13  import "C"
    14  
    15  // NOTE(rsc): In theory there are approximately balanced
    16  // arguments for and against including AI_ADDRCONFIG
    17  // in the flags (it includes IPv4 results only on IPv4 systems,
    18  // and similarly for IPv6), but in practice setting it causes
    19  // getaddrinfo to return the wrong canonical name on Linux.
    20  // So definitely leave it out.
    21  const cgoAddrInfoFlags = C.AI_CANONNAME | C.AI_V4MAPPED | C.AI_ALL
    22
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