dist/ipf/lib/gethost.c

   1 /*      $NetBSD$        */
   2
   3 /*
   4  * Copyright (C) 2002-2004 by Darren Reed.
   5  *
   6  * See the IPFILTER.LICENCE file for details on licencing.
   7  *
   8  * Id: gethost.c,v 1.3.2.2 2006/06/16 17:20:59 darrenr Exp
   9  */
  10
  11 #include "ipf.h"
  12
  13 int gethost(name, hostp)
  14 char *name;
  15 u_32_t *hostp;
  16 {
  17         struct hostent *h;
  18         struct netent *n;
  19         u_32_t addr;
  20
  21         if (!strcmp(name, "test.host.dots")) {
  22                 *hostp = htonl(0xfedcba98);
  23                 return 0;
  24         }
  25
  26         if (!strcmp(name, "<thishost>"))
  27                 name = thishost;
  28
  29         h = gethostbyname(name);
  30         if (h != NULL) {
  31                 if ((h->h_addr != NULL) && (h->h_length == sizeof(addr))) {
  32                         bcopy(h->h_addr, (char *)&addr, sizeof(addr));
  33                         *hostp = addr;
  34                         return 0;
  35                 }
  36         }
  37
  38         n = getnetbyname(name);
  39         if (n != NULL) {
  40                 *hostp = (u_32_t)htonl(n->n_net & 0xffffffff);
  41                 return 0;
  42         }
  43         return -1;
  44 }