resolv/res_hconf.h

   1 /* Copyright (C) 1993, 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by David Mosberger (davidm@azstarnet.com).
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #ifndef _RES_HCONF_H_
  21 #define _RES_HCONF_H_
  22
  23 #include <netdb.h>
  24
  25 #define TRIMDOMAINS_MAX 4
  26
  27 enum Name_Service
  28 {
  29   SERVICE_NONE = 0,
  30   SERVICE_BIND, SERVICE_HOSTS, SERVICE_NIS,
  31   SERVICE_MAX
  32 };
  33
  34 struct hconf
  35 {
  36   int initialized;
  37   int num_services;
  38   enum Name_Service service[SERVICE_MAX];
  39   int num_trimdomains;
  40   const char *trimdomain[TRIMDOMAINS_MAX];
  41   unsigned int flags;
  42 #  define HCONF_FLAG_INITED     (1 << 0) /* initialized? */
  43 #  define HCONF_FLAG_SPOOF      (1 << 1) /* refuse spoofed addresses */
  44 #  define HCONF_FLAG_SPOOFALERT (1 << 2) /* syslog warning of spoofed */
  45 #  define HCONF_FLAG_REORDER    (1 << 3) /* list best address first */
  46 #  define HCONF_FLAG_MULTI      (1 << 4) /* see comments for gethtbyname() */
  47 };
  48 extern struct hconf _res_hconf;
  49
  50 extern void _res_hconf_init (void);
  51 extern void _res_hconf_trim_domain (char *domain);
  52 extern void _res_hconf_trim_domains (struct hostent *hp);
  53 extern void _res_hconf_reorder_addrs (struct hostent *hp);
  54
  55 #endif /* _RES_HCONF_H_ */