-/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1996,1997,1998,1999,2000,2002 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
#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, int 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 (&INTUSE(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) \
+ { \
+ _res_hconf_reorder_addrs (resbuf); \
+ _res_hconf_trim_domains (resbuf); \
+ }
+
+/* Special name for the lookup function. */
+#define DB_LOOKUP_FCT INTUSE(__nss_hosts_lookup)
#include "../nss/getXXbyYY_r.c"