summaryrefslogtreecommitdiff
path: root/usr.bin/ssh/getput.h
blob: 1a19d22cdb00be49b49a71afc27e9362b0f72da5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
/*
 * Author: Tatu Ylonen <ylo@cs.hut.fi>
 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
 *                    All rights reserved
 * Macros for storing and retrieving data in msb first and lsb first order.
 *
 * As far as I am concerned, the code I have written for this software
 * can be used freely for any purpose.  Any derived versions of this
 * software must be clearly marked as such, and if the derived work is
 * incompatible with the protocol description in the RFC file, it must be
 * called by a name other than "ssh" or "Secure Shell".
 */

/* RCSID("$OpenBSD: getput.h,v 1.7 2001/01/10 22:56:22 markus Exp $"); */

#ifndef GETPUT_H
#define GETPUT_H

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

#define GET_64BIT(cp) (((u_int64_t)(u_char)(cp)[0] << 56) | \
		       ((u_int64_t)(u_char)(cp)[1] << 48) | \
		       ((u_int64_t)(u_char)(cp)[2] << 40) | \
		       ((u_int64_t)(u_char)(cp)[3] << 32) | \
		       ((u_int64_t)(u_char)(cp)[4] << 24) | \
		       ((u_int64_t)(u_char)(cp)[5] << 16) | \
		       ((u_int64_t)(u_char)(cp)[6] << 8) | \
		       ((u_int64_t)(u_char)(cp)[7]))

#define GET_32BIT(cp) (((u_long)(u_char)(cp)[0] << 24) | \
		       ((u_long)(u_char)(cp)[1] << 16) | \
		       ((u_long)(u_char)(cp)[2] << 8) | \
		       ((u_long)(u_char)(cp)[3]))

#define GET_16BIT(cp) (((u_long)(u_char)(cp)[0] << 8) | \
		       ((u_long)(u_char)(cp)[1]))

#define PUT_64BIT(cp, value) do { \
  (cp)[0] = (value) >> 56; \
  (cp)[1] = (value) >> 48; \
  (cp)[2] = (value) >> 40; \
  (cp)[3] = (value) >> 32; \
  (cp)[4] = (value) >> 24; \
  (cp)[5] = (value) >> 16; \
  (cp)[6] = (value) >> 8; \
  (cp)[7] = (value); } while (0)

#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)

#endif				/* GETPUT_H */