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 2 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, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  19  * USA.
  20  */
  21
  22 #ifndef G10_HOST2NET_H
  23 #define G10_HOST2NET_H
  24
  25 #include "types.h"
  26
  27 #define buftoulong( p )  ((*(byte*)(p) << 24) | (*((byte*)(p)+1)<< 16) | \
  28                        (*((byte*)(p)+2) << 8) | (*((byte*)(p)+3)))
  29 #define buftoushort( p )  ((*((byte*)(p)) << 8) | (*((byte*)(p)+1)))
  30 #define ulongtobuf( p, a ) do {                           \
  31                             ((byte*)p)[0] = a >> 24;    \
  32                             ((byte*)p)[1] = a >> 16;    \
  33                             ((byte*)p)[2] = a >>  8;    \
  34                             ((byte*)p)[3] = a      ;    \
  35                         } while(0)
  36 #define ushorttobuf( p, a ) do {                           \
  37                             ((byte*)p)[0] = a >>  8;    \
  38                             ((byte*)p)[1] = a      ;    \
  39                         } while(0)
  40 #define buftou32( p)    buftoulong( (p) )
  41 #define u32tobuf( p, a) ulongtobuf( (p), (a) )
  42
  43
  44 #endif /*G10_HOST2NET_H*/