/* Networks file parser in nss_files module.

   Copyright (C) 1996-2018 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

   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

   <http://www.gnu.org/licenses/>.  */

#include <netinet/in.h>

#include <arpa/inet.h>

#include <netdb.h>

#include <stdint.h>

#define ENTNAME		netent

#define DATABASE	"networks"

#define NEED_H_ERRNO

struct netent_data {};

#define TRAILING_LIST_MEMBER		n_aliases

#define TRAILING_LIST_SEPARATOR_P	isspace

#include "files-parse.c"

LINE_PARSER

("#",

 {

   char *addr;

   char *cp;

   int n = 1;

   STRING_FIELD (result->n_name, isspace, 1);

   STRING_FIELD (addr, isspace, 1);

   /* 'inet_network' does not add zeroes at the end if the network number

      does not four byte values.  We add them outselves if necessary.  */

   cp = strchr (addr, '.');

   if (cp != NULL)

     {

       ++n;

       cp = strchr (cp + 1, '.');

       if (cp != NULL)

	 {

	   ++n;

	   cp = strchr (cp + 1, '.');

	   if (cp != NULL)

	     ++n;

	 }

     }

   if (n < 4)

     {

       char *newp = (char *) alloca (strlen (addr) + (4 - n) * 2 + 1);

       cp = stpcpy (newp, addr);

       do

	 {

	   *cp++ = '.';

	   *cp++ = '0';

	 }

       while (++n < 4);

       *cp = '\0';

       addr = newp;

     }

   result->n_net = inet_network (addr);

   result->n_addrtype = AF_INET;

 })

#include "files-XXX.c"

DB_LOOKUP (netbyname, ,,,

	   LOOKUP_NAME_CASE (n_name, n_aliases),

	   const char *name)

DB_LOOKUP (netbyaddr, ,,,

	   {

	     if ((type == AF_UNSPEC || result->n_addrtype == type)

		 && result->n_net == net)

	       /* Bingo!  */

	       break;

	   }, uint32_t net, int type)