From: Ulrich Drepper <drepper@redhat.com>
Date: Wed, 14 May 2008 22:47:15 +0000 (+0000)
Subject: (match_prefix): Don't treat IPv4 loopback address special when
X-Git-Tag: cvs/fedora-glibc-20080515T0735~7
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=5846c4e2692a18a922cf07ab6c3ec20efa61b4d3;p=platform%2Fupstream%2Fglibc.git

(match_prefix): Don't treat IPv4 loopback address special when

	converting to v4 mapped addressed.
---

diff --git a/ChangeLog b/ChangeLog
index db05ed2..2dc03d5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -3,6 +3,8 @@
 	[BZ #6472]
 	* sysdeps/posix/getaddrinfo.c (get_scope): Loopback addresses have
 	to be treated like link-local addresses.
+	(match_prefix): Don't treat IPv4 loopback address special when
+	converting to v4 mapped addressed.
 
 	* sysdeps/posix/getaddrinfo.c (getaddrinfo): Add _res_hconf_init
 	if necessary.
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index 855c5a5..8908fc1 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -1248,20 +1248,14 @@ match_prefix (const struct sockaddr_in6 *in6,
     {
       const struct sockaddr_in *in = (const struct sockaddr_in *) in6;
 
-      /* Convert to IPv6 address.  */
+      /* Construct a V4-to-6 mapped address.  */
       in6_mem.sin6_family = PF_INET6;
       in6_mem.sin6_port = in->sin_port;
       in6_mem.sin6_flowinfo = 0;
-      if (in->sin_addr.s_addr == htonl (0x7f000001))
-	in6_mem.sin6_addr = (struct in6_addr) IN6ADDR_LOOPBACK_INIT;
-      else
-	{
-	  /* Construct a V4-to-6 mapped address.  */
-	  memset (&in6_mem.sin6_addr, '\0', sizeof (in6_mem.sin6_addr));
-	  in6_mem.sin6_addr.s6_addr16[5] = 0xffff;
-	  in6_mem.sin6_addr.s6_addr32[3] = in->sin_addr.s_addr;
-	  in6_mem.sin6_scope_id = 0;
-	}
+      memset (&in6_mem.sin6_addr, '\0', sizeof (in6_mem.sin6_addr));
+      in6_mem.sin6_addr.s6_addr16[5] = 0xffff;
+      in6_mem.sin6_addr.s6_addr32[3] = in->sin_addr.s_addr;
+      in6_mem.sin6_scope_id = 0;
 
       in6 = &in6_mem;
     }