nss/nss_files/files-ethers.c

   1 /* Copyright (C) 1996, 1997, 2000 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #include <string.h>
  20 #include <netinet/ether.h>
  21 #include <netinet/if_ether.h>
  22
  23 struct etherent_data {};
  24
  25 #define ENTNAME         etherent
  26 #define DATABASE        "ethers"
  27 #include "files-parse.c"
  28 LINE_PARSER
  29 ("#",
  30  /* Read the ethernet address: 6 x 8bit hexadecimal number.  */
  31  {
  32    size_t cnt;
  33
  34    for (cnt = 0; cnt < 6; ++cnt)
  35      {
  36        unsigned int number;
  37
  38        if (cnt < 5)
  39          INT_FIELD (number, ISCOLON , 0, 16, (unsigned int))
  40        else
  41          INT_FIELD (number, isspace, 1, 16, (unsigned int))
  42
  43        if (number > 0xff)
  44          return 0;
  45        result->e_addr.ether_addr_octet[cnt] = number;
  46      }
  47  };
  48  STRING_FIELD (result->e_name, isspace, 1);
  49  )
  50
  51
  52 #include GENERIC
  53
  54 DB_LOOKUP (hostton, 1 + strlen (name), (".%s", name),
  55            {
  56              if (__strcasecmp (result->e_name, name) == 0)
  57                break;
  58            }, const char *name)
  59
  60 DB_LOOKUP (ntohost, 18, ("=%x:%x:%x:%x:%x:%x",
  61                          addr->ether_addr_octet[0], addr->ether_addr_octet[1],
  62                          addr->ether_addr_octet[2], addr->ether_addr_octet[3],
  63                          addr->ether_addr_octet[4], addr->ether_addr_octet[5]),
  64            {
  65              if (memcmp (&result->e_addr, addr,
  66                          sizeof (struct ether_addr)) == 0)
  67                break;
  68            }, const struct ether_addr *addr)