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1 | /* $OpenBSD: getput.h,v 1.8 2002/03/04 17:27:39 stevesk Exp $ */ | |
2 | ||
3 | /* | |
4 | * Author: Tatu Ylonen <ylo@cs.hut.fi> | |
5 | * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland | |
6 | * All rights reserved | |
7 | * Macros for storing and retrieving data in msb first and lsb first order. | |
8 | * | |
9 | * 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". | |
14 | */ | |
15 | ||
16 | #ifndef GETPUT_H | |
17 | #define GETPUT_H | |
18 | ||
19 | /*------------ macros for storing/extracting msb first words -------------*/ | |
20 | ||
21 | #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 | ||
30 | #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])) | |
34 | ||
35 | #define GET_16BIT(cp) (((u_long)(u_char)(cp)[0] << 8) | \ | |
36 | ((u_long)(u_char)(cp)[1])) | |
37 | ||
38 | #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 | ||
48 | #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 | ||
58 | #endif /* GETPUT_H */ |