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Annotation of src/usr.bin/ssh/getput.h, Revision 1.7.2.1

1.7.2.1 ! miod        1: /*     $OpenBSD: getput.h,v 1.8 2002/03/04 17:27:39 stevesk Exp $      */
        !             2:
1.1       deraadt     3: /*
1.2       deraadt     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.
1.3       markus      8:  *
1.5       deraadt     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".
1.2       deraadt    14:  */
1.1       deraadt    15:
                     16: #ifndef GETPUT_H
                     17: #define GETPUT_H
                     18:
                     19: /*------------ macros for storing/extracting msb first words -------------*/
                     20:
1.7       markus     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:
1.6       markus     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]))
1.1       deraadt    34:
1.6       markus     35: #define GET_16BIT(cp) (((u_long)(u_char)(cp)[0] << 8) | \
                     36:                       ((u_long)(u_char)(cp)[1]))
1.1       deraadt    37:
1.7       markus     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:
1.1       deraadt    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:
1.2       deraadt    58: #endif                         /* GETPUT_H */