Annotation of src/usr.bin/ssh/getput.h, Revision 1.3.2.1
1.1 deraadt 1: /*
1.3 markus 2: *
1.2 deraadt 3: * getput.h
1.3 markus 4: *
1.2 deraadt 5: * Author: Tatu Ylonen <ylo@cs.hut.fi>
1.3 markus 6: *
1.2 deraadt 7: * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
8: * All rights reserved
1.3 markus 9: *
1.2 deraadt 10: * Created: Wed Jun 28 22:36:30 1995 ylo
1.3 markus 11: *
1.2 deraadt 12: * Macros for storing and retrieving data in msb first and lsb first order.
1.3 markus 13: *
1.2 deraadt 14: */
1.1 deraadt 15:
1.3.2.1 ! jason 16: /* RCSID("$OpenBSD: getput.h,v 1.4 2000/06/20 01:39:41 markus Exp $"); */
1.1 deraadt 17:
18: #ifndef GETPUT_H
19: #define GETPUT_H
20:
21: /*------------ macros for storing/extracting msb first words -------------*/
22:
23: #define GET_32BIT(cp) (((unsigned long)(unsigned char)(cp)[0] << 24) | \
1.3 markus 24: ((unsigned long)(unsigned char)(cp)[1] << 16) | \
1.1 deraadt 25: ((unsigned long)(unsigned char)(cp)[2] << 8) | \
26: ((unsigned long)(unsigned char)(cp)[3]))
27:
28: #define GET_16BIT(cp) (((unsigned long)(unsigned char)(cp)[0] << 8) | \
29: ((unsigned long)(unsigned char)(cp)[1]))
30:
31: #define PUT_32BIT(cp, value) do { \
32: (cp)[0] = (value) >> 24; \
33: (cp)[1] = (value) >> 16; \
34: (cp)[2] = (value) >> 8; \
35: (cp)[3] = (value); } while (0)
36:
37: #define PUT_16BIT(cp, value) do { \
38: (cp)[0] = (value) >> 8; \
39: (cp)[1] = (value); } while (0)
40:
41: /*------------ macros for storing/extracting lsb first words -------------*/
42:
43: #define GET_32BIT_LSB_FIRST(cp) \
44: (((unsigned long)(unsigned char)(cp)[0]) | \
45: ((unsigned long)(unsigned char)(cp)[1] << 8) | \
46: ((unsigned long)(unsigned char)(cp)[2] << 16) | \
47: ((unsigned long)(unsigned char)(cp)[3] << 24))
48:
49: #define GET_16BIT_LSB_FIRST(cp) \
50: (((unsigned long)(unsigned char)(cp)[0]) | \
51: ((unsigned long)(unsigned char)(cp)[1] << 8))
52:
53: #define PUT_32BIT_LSB_FIRST(cp, value) do { \
54: (cp)[0] = (value); \
55: (cp)[1] = (value) >> 8; \
56: (cp)[2] = (value) >> 16; \
57: (cp)[3] = (value) >> 24; } while (0)
58:
59: #define PUT_16BIT_LSB_FIRST(cp, value) do { \
60: (cp)[0] = (value); \
61: (cp)[1] = (value) >> 8; } while (0)
62:
1.2 deraadt 63: #endif /* GETPUT_H */