src/kauth/kaport.h

   1 /*
   2  * Copyright 2000, International Business Machines Corporation and others.
   3  * All Rights Reserved.
   4  *
   5  * This software has been released under the terms of the IBM Public
   6  * License.  For details, see the LICENSE file in the top-level source
   7  * directory or online at http://www.openafs.org/dl/license10.html
   8  */
   9
  10 /*
  11  * some macros to permit a couple of new features while remaining compatible
  12  * and reasonably portable...
  13  * could tighten up 0 and 3 a little, but I've left them like this for now
  14  * for ease of understanding.
  15  * assumes sizeof(afs_int32) == 4, but then, so does the rest of AFS...
  16  */
  17 #ifndef KAPORT_H
  18 #define KAPORT_H
  19
  20 #define unpack_long(src, dst) { \
  21 dst[0] = ((unsigned char)(((afs_uint32)(src) & 0xff000000) >> 24) & 0xff); \
  22 dst[1] = ((unsigned char)(((afs_uint32)(src) & 0x00ff0000) >> 16) & 0xff); \
  23 dst[2] = ((unsigned char)(((afs_uint32)(src) & 0x0000ff00) >>  8) & 0xff); \
  24 dst[3] = ((unsigned char)(((afs_uint32)(src) & 0x000000ff) >>  0) & 0xff); }
  25
  26 #define pack_long(src) ( \
  27 (afs_uint32) ( \
  28                  ((afs_uint32) ((src)[0] & 0xff) << 24) | \
  29                  ((afs_uint32) ((src)[1] & 0xff) << 16) | \
  30                  ((afs_uint32) ((src)[2] & 0xff) <<  8) | \
  31                  ((afs_uint32) ((src)[3] & 0xff) <<  0) ) )
  32
  33 #endif /* KAPORT_H */