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i bet a lot of people didn't know what ssh 1.2.16 had a nice license.
well, except for the patent issues.  someone in sweden (forget their
name at the moment) cleaned out most of the patented code, and now
this code removes rsa code.  when this is done, it will link against
libssl, but the work isn't completely done yet.  then we need to bring
this up to modern days, featurewise.

/*

getput.h

Author: Tatu Ylonen <ylo@cs.hut.fi>

Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
                   All rights reserved

Created: Wed Jun 28 22:36:30 1995 ylo

Macros for storing and retrieving data in msb first and lsb first order.

*/

/* RCSID("$Id: getput.h,v 1.1 1999/09/26 20:53:36 deraadt Exp $"); */

#ifndef GETPUT_H
#define GETPUT_H

/*------------ macros for storing/extracting msb first words -------------*/

#define GET_32BIT(cp) (((unsigned long)(unsigned char)(cp)[0] << 24) | \
  		       ((unsigned long)(unsigned char)(cp)[1] << 16) | \
		       ((unsigned long)(unsigned char)(cp)[2] << 8) | \
		       ((unsigned long)(unsigned char)(cp)[3]))

#define GET_16BIT(cp) (((unsigned long)(unsigned char)(cp)[0] << 8) | \
		       ((unsigned long)(unsigned char)(cp)[1]))

#define PUT_32BIT(cp, value) do { \
  (cp)[0] = (value) >> 24; \
  (cp)[1] = (value) >> 16; \
  (cp)[2] = (value) >> 8; \
  (cp)[3] = (value); } while (0)

#define PUT_16BIT(cp, value) do { \
  (cp)[0] = (value) >> 8; \
  (cp)[1] = (value); } while (0)

/*------------ macros for storing/extracting lsb first words -------------*/

#define GET_32BIT_LSB_FIRST(cp) \
  (((unsigned long)(unsigned char)(cp)[0]) | \
  ((unsigned long)(unsigned char)(cp)[1] << 8) | \
  ((unsigned long)(unsigned char)(cp)[2] << 16) | \
  ((unsigned long)(unsigned char)(cp)[3] << 24))

#define GET_16BIT_LSB_FIRST(cp) \
  (((unsigned long)(unsigned char)(cp)[0]) | \
  ((unsigned long)(unsigned char)(cp)[1] << 8))

#define PUT_32BIT_LSB_FIRST(cp, value) do { \
  (cp)[0] = (value); \
  (cp)[1] = (value) >> 8; \
  (cp)[2] = (value) >> 16; \
  (cp)[3] = (value) >> 24; } while (0)

#define PUT_16BIT_LSB_FIRST(cp, value) do { \
  (cp)[0] = (value); \
  (cp)[1] = (value) >> 8; } while (0)

#endif /* GETPUT_H */