commit fee7d1688ad035e7ea246097e7cee9f0f8bef59b
Author: Pavel Šimerda <psimerda@redhat.com>
Date:   Sat Sep 22 14:29:29 2012 +0200

    EXPERIMENTAL: ignore AI_ADDRCONFIG in getaddrinfo()
    
    This should fix problems getaddrinfo() for non-global use cases. It
    should now work for the following 'node' names even on hosts without
    global IPv4 and/or IPv6.
    
      getaddrinfo("127.0.0.1", ...)
      getaddrinfo("::1", ...)
      getaddrinfo("localhost", ...)
      getaddrinfo("localhost4", ...)
      getaddrinfo("localhost6", ...)
      getaddrinfo("fe80::44ab:6fff:fe75:4c04%eth0", ...)
    
    The price for this is losing AI_ADDRCONFIG funcionality. But this
    funcionality should be only used for DNS.

diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index 05883bd..503f6a8 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -2403,36 +2403,6 @@ getaddrinfo (const char *name, const char *service,
   bool seen_ipv6 = false;
   bool check_pf_called = false;
 
-  if (hints->ai_flags & AI_ADDRCONFIG)
-    {
-      /* We might need information about what interfaces are available.
-	 Also determine whether we have IPv4 or IPv6 interfaces or both.  We
-	 cannot cache the results since new interfaces could be added at
-	 any time.  */
-      __check_pf (&seen_ipv4, &seen_ipv6, &in6ai, &in6ailen);
-      check_pf_called = true;
-
-      /* Now make a decision on what we return, if anything.  */
-      if (hints->ai_family == PF_UNSPEC && (seen_ipv4 || seen_ipv6))
-	{
-	  /* If we haven't seen both IPv4 and IPv6 interfaces we can
-	     narrow down the search.  */
-	  if ((! seen_ipv4 || ! seen_ipv6) && (seen_ipv4 || seen_ipv6))
-	    {
-	      local_hints = *hints;
-	      local_hints.ai_family = seen_ipv4 ? PF_INET : PF_INET6;
-	      hints = &local_hints;
-	    }
-	}
-      else if ((hints->ai_family == PF_INET && ! seen_ipv4)
-	       || (hints->ai_family == PF_INET6 && ! seen_ipv6))
-	{
-	  /* We cannot possibly return a valid answer.  */
-	  __free_in6ai (in6ai);
-	  return EAI_NONAME;
-	}
-    }
-
   if (service && service[0])
     {
       char *c;