Attachment 615840 Details for Bug 808147 – TEMPORARY patch to ignore AI_ADDRCONFIG

[patch] TEMPORARY patch to ignore AI_ADDRCONFIG

glibc-ignore-addrconfig.patch (text/plain), 2.09 KB, created by Pavel Šimerda (pavlix) on 2012-09-22 15:11:26 UTC

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Creator: Pavel Šimerda (pavlix)

Created: 2012-09-22 15:11:26 UTC

Size: 2.09 KB

patch

obsolete

>commit fee7d1688ad035e7ea246097e7cee9f0f8bef59b
>Author: Pavel Å imerda <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;

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Attachments on bug 808147: 595983 | 595984 | 595985 | 595986 | 615840