Merge branch 'master' into bug13658-branch

[platform/upstream/glibc.git] / inet / gethstbyad_r.c

diff --git a/inet/gethstbyad_r.c b/inet/gethstbyad_r.c
index 366cd55..d8e4988 100644 (file)
--- a/inet/gethstbyad_r.c
+++ b/inet/gethstbyad_r.c
@@ -1,33 +1,44 @@
-/* Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
+/* Copyright (C) 1996-2000,2002,2007 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
 
    The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Library General Public License as
-   published by the Free Software Foundation; either version 2 of the
-   License, or (at your option) any later version.
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
 
    The GNU C Library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Library General Public License for more details.
+   Lesser General Public License for more details.
 
-   You should have received a copy of the GNU Library General Public
-   License along with the GNU C Library; see the file COPYING.LIB.  If not,
-   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
 
 #include <netdb.h>
+#include <string.h>
 
 
 #define LOOKUP_TYPE    struct hostent
 #define FUNCTION_NAME  gethostbyaddr
 #define DATABASE_NAME  hosts
-#define ADD_PARAMS     const char *addr, size_t len, int type
+#define ADD_PARAMS     const void *addr, socklen_t len, int type
 #define ADD_VARIABLES  addr, len, type
 #define NEED_H_ERRNO   1
 #define NEED__RES      1
 #define NEED__RES_HCONF        1
+/* If the addr parameter is the IPv6 unspecified address no query must
+   be performed.  */
+#define PREPROCESS \
+  if (len == sizeof (struct in6_addr)                                        \
+      && __builtin_expect (memcmp (&in6addr_any, addr,                       \
+                                  sizeof (struct in6_addr)), 1) == 0)        \
+    {                                                                        \
+      *h_errnop = HOST_NOT_FOUND;                                            \
+      *result = NULL;                                                        \
+      return ENOENT;                                                         \
+    }
 #define POSTPROCESS \
   if (status == NSS_STATUS_SUCCESS)                                          \
     {                                                                        \
@@ -35,4 +46,7 @@
       _res_hconf_trim_domains (resbuf);                                              \
     }
 
+/* Special name for the lookup function.  */
+#define DB_LOOKUP_FCT __nss_hosts_lookup2
+
 #include "../nss/getXXbyYY_r.c"