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-rw-r--r--nss/nss_files/files-alias.c6
-rw-r--r--nss/nss_files/files-hosts.c34
2 files changed, 28 insertions, 12 deletions
diff --git a/nss/nss_files/files-alias.c b/nss/nss_files/files-alias.c
index 8ee54f121f..c4717e1242 100644
--- a/nss/nss_files/files-alias.c
+++ b/nss/nss_files/files-alias.c
@@ -1,5 +1,5 @@
 /* Mail alias file parser in nss_files module.
-   Copyright (C) 1996,97,98,99,2002 Free Software Foundation, Inc.
+   Copyright (C) 1996,97,98,99,2002,2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
 
@@ -298,8 +298,8 @@ get_next_alias (const char *match, struct aliasent *result,
 			  first_unused[room_left - 1] = '\0';
 			  strncpy (first_unused, old_line, room_left);
 
-			  if (old_line != NULL)
-			    free (old_line);
+			  free (old_line);
+			  line = first_unused;
 
 			  if (first_unused[room_left - 1] != '\0')
 			    goto no_more_room;
diff --git a/nss/nss_files/files-hosts.c b/nss/nss_files/files-hosts.c
index 8d1a8ee588..6daafdeeed 100644
--- a/nss/nss_files/files-hosts.c
+++ b/nss/nss_files/files-hosts.c
@@ -1,5 +1,5 @@
 /* Hosts file parser in nss_files module.
-   Copyright (C) 1996-2001, 2003, 2004 Free Software Foundation, Inc.
+   Copyright (C) 1996-2001, 2003, 2004, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -55,14 +55,30 @@ LINE_PARSER
    STRING_FIELD (addr, isspace, 1);
 
    /* Parse address.  */
-   if (inet_pton (af, addr, entdata->host_addr) <= 0
-       && (af != AF_INET6 || (flags & AI_V4MAPPED) == 0
-	   || inet_pton (AF_INET, addr, entdata->host_addr) <= 0
-	   || (map_v4v6_address ((char *) entdata->host_addr,
-				 (char *) entdata->host_addr),
-	       0)))
-     /* Illegal address: ignore line.  */
-     return 0;
+   if (inet_pton (af, addr, entdata->host_addr) <= 0)
+     {
+       if (af == AF_INET6 && (flags & AI_V4MAPPED) != 0
+	   && inet_pton (AF_INET, addr, entdata->host_addr) > 0)
+	 map_v4v6_address ((char *) entdata->host_addr,
+			   (char *) entdata->host_addr);
+       else if (af == AF_INET
+		&& inet_pton (AF_INET6, addr, entdata->host_addr) > 0)
+	 {
+	   if (IN6_IS_ADDR_V4MAPPED (entdata->host_addr))
+	     memcpy (entdata->host_addr, entdata->host_addr + 12, INADDRSZ);
+	   else if (IN6_IS_ADDR_LOOPBACK (entdata->host_addr))
+	     {
+	       in_addr_t localhost = htonl (INADDR_LOOPBACK);
+	       memcpy (entdata->host_addr, &localhost, sizeof (localhost));
+	     }
+	   else
+	     /* Illegal address: ignore line.  */
+	     return 0;
+	 }
+       else
+	 /* Illegal address: ignore line.  */
+	 return 0;
+     }
 
    /* We always return entries of the requested form.  */
    result->h_addrtype = af;