mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-08 22:30:07 +00:00
52 lines
1.9 KiB
C
52 lines
1.9 KiB
C
/* Copyright (C) 1996-2020 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 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <netdb.h>
|
|
#include <string.h>
|
|
#include <resolv/res_hconf.h>
|
|
|
|
#define LOOKUP_TYPE struct hostent
|
|
#define FUNCTION_NAME gethostbyaddr
|
|
#define DATABASE_NAME hosts
|
|
#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
|
|
/* 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) \
|
|
{ \
|
|
_res_hconf_reorder_addrs (resbuf); \
|
|
_res_hconf_trim_domains (resbuf); \
|
|
}
|
|
|
|
/* Special name for the lookup function. */
|
|
#define DB_LOOKUP_FCT __nss_hosts_lookup2
|
|
|
|
#include "../nss/getXXbyYY_r.c"
|