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Ben Lindstrom05764b92002-03-05 01:53:02 +00001/* $OpenBSD: getput.h,v 1.8 2002/03/04 17:27:39 stevesk Exp $ */
2
Damien Millerd4a8b7e1999-10-27 13:42:43 +10003/*
Damien Miller95def091999-11-25 00:26:21 +11004 * Author: Tatu Ylonen <ylo@cs.hut.fi>
Damien Miller95def091999-11-25 00:26:21 +11005 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
6 * All rights reserved
Damien Miller95def091999-11-25 00:26:21 +11007 * Macros for storing and retrieving data in msb first and lsb first order.
Damien Miller4af51302000-04-16 11:18:38 +10008 *
Damien Millere4340be2000-09-16 13:29:08 +11009 * As far as I am concerned, the code I have written for this software
10 * can be used freely for any purpose. Any derived versions of this
11 * software must be clearly marked as such, and if the derived work is
12 * incompatible with the protocol description in the RFC file, it must be
13 * called by a name other than "ssh" or "Secure Shell".
Damien Miller95def091999-11-25 00:26:21 +110014 */
Damien Millerd4a8b7e1999-10-27 13:42:43 +100015
Damien Millerd4a8b7e1999-10-27 13:42:43 +100016#ifndef GETPUT_H
17#define GETPUT_H
18
19/*------------ macros for storing/extracting msb first words -------------*/
20
Ben Lindstrom2f959b42001-01-11 06:20:23 +000021#define GET_64BIT(cp) (((u_int64_t)(u_char)(cp)[0] << 56) | \
22 ((u_int64_t)(u_char)(cp)[1] << 48) | \
23 ((u_int64_t)(u_char)(cp)[2] << 40) | \
24 ((u_int64_t)(u_char)(cp)[3] << 32) | \
25 ((u_int64_t)(u_char)(cp)[4] << 24) | \
26 ((u_int64_t)(u_char)(cp)[5] << 16) | \
27 ((u_int64_t)(u_char)(cp)[6] << 8) | \
28 ((u_int64_t)(u_char)(cp)[7]))
29
Ben Lindstrom46c16222000-12-22 01:43:59 +000030#define GET_32BIT(cp) (((u_long)(u_char)(cp)[0] << 24) | \
31 ((u_long)(u_char)(cp)[1] << 16) | \
32 ((u_long)(u_char)(cp)[2] << 8) | \
33 ((u_long)(u_char)(cp)[3]))
Damien Millerd4a8b7e1999-10-27 13:42:43 +100034
Ben Lindstrom46c16222000-12-22 01:43:59 +000035#define GET_16BIT(cp) (((u_long)(u_char)(cp)[0] << 8) | \
36 ((u_long)(u_char)(cp)[1]))
Damien Millerd4a8b7e1999-10-27 13:42:43 +100037
Ben Lindstrom2f959b42001-01-11 06:20:23 +000038#define PUT_64BIT(cp, value) do { \
39 (cp)[0] = (value) >> 56; \
40 (cp)[1] = (value) >> 48; \
41 (cp)[2] = (value) >> 40; \
42 (cp)[3] = (value) >> 32; \
43 (cp)[4] = (value) >> 24; \
44 (cp)[5] = (value) >> 16; \
45 (cp)[6] = (value) >> 8; \
46 (cp)[7] = (value); } while (0)
47
Damien Millerd4a8b7e1999-10-27 13:42:43 +100048#define PUT_32BIT(cp, value) do { \
49 (cp)[0] = (value) >> 24; \
50 (cp)[1] = (value) >> 16; \
51 (cp)[2] = (value) >> 8; \
52 (cp)[3] = (value); } while (0)
53
54#define PUT_16BIT(cp, value) do { \
55 (cp)[0] = (value) >> 8; \
56 (cp)[1] = (value); } while (0)
57
Damien Miller95def091999-11-25 00:26:21 +110058#endif /* GETPUT_H */