| 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 */ |
|---|
