include/host2net.h

   1 /* host2net.h - Some macros
   2  *      Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
   3  *
   4  * This file is part of GnuPG.
   5  *
   6  * GnuPG is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * GnuPG is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #ifndef G10_HOST2NET_H
  21 #define G10_HOST2NET_H
  22
  23 #include "types.h"
  24
  25 #define buftoulong( p )  ((*(byte*)(p) << 24) | (*((byte*)(p)+1)<< 16) | \
  26                        (*((byte*)(p)+2) << 8) | (*((byte*)(p)+3)))
  27 #define buftoushort( p )  ((*((byte*)(p)) << 8) | (*((byte*)(p)+1)))
  28 #define ulongtobuf( p, a ) do {                           \
  29                             ((byte*)p)[0] = a >> 24;    \
  30                             ((byte*)p)[1] = a >> 16;    \
  31                             ((byte*)p)[2] = a >>  8;    \
  32                             ((byte*)p)[3] = a      ;    \
  33                         } while(0)
  34 #define ushorttobuf( p, a ) do {                           \
  35                             ((byte*)p)[0] = a >>  8;    \
  36                             ((byte*)p)[1] = a      ;    \
  37                         } while(0)
  38 #define buftou32( p)    buftoulong( (p) )
  39 #define u32tobuf( p, a) ulongtobuf( (p), (a) )
  40
  41
  42 #endif /*G10_HOST2NET_H*/