src/ip6addr.h

   1 /* dnsmasq is Copyright (c) 2000-2014 Simon Kelley
   2
   3    This program is free software; you can redistribute it and/or modify
   4    it under the terms of the GNU General Public License as published by
   5    the Free Software Foundation; version 2 dated June, 1991, or
   6    (at your option) version 3 dated 29 June, 2007.
   7
   8    This program is distributed in the hope that it will be useful,
   9    but WITHOUT ANY WARRANTY; without even the implied warranty of
  10    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11    GNU General Public License for more details.
  12
  13    You should have received a copy of the GNU General Public License
  14    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15 */
  16
  17
  18
  19 #define IN6_IS_ADDR_ULA(a) \
  20         ((((__const uint32_t *) (a))[0] & htonl (0xff000000))                 \
  21          == htonl (0xfd000000))
  22
  23 #define IN6_IS_ADDR_ULA_ZERO(a) \
  24         (((__const uint32_t *) (a))[0] == htonl (0xfd000000)                        \
  25          && ((__const uint32_t *) (a))[1] == 0                                \
  26          && ((__const uint32_t *) (a))[2] == 0                                \
  27          && ((__const uint32_t *) (a))[3] == 0)
  28
  29 #define IN6_IS_ADDR_LINK_LOCAL_ZERO(a) \
  30         (((__const uint32_t *) (a))[0] == htonl (0xfe800000)                  \
  31          && ((__const uint32_t *) (a))[1] == 0                                \
  32          && ((__const uint32_t *) (a))[2] == 0                                \
  33          && ((__const uint32_t *) (a))[3] == 0)
  34