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
|
/* $OpenBSD: extract.h,v 1.4 1996/07/13 11:01:09 mickey Exp $ */
/*
* Copyright (c) 1992, 1993, 1994, 1995, 1996
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that: (1) source code distributions
* retain the above copyright notice and this paragraph in its entirety, (2)
* distributions including binary code include the above copyright notice and
* this paragraph in its entirety in the documentation or other materials
* provided with the distribution, and (3) all advertising materials mentioning
* features or use of this software display the following acknowledgement:
* ``This product includes software developed by the University of California,
* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
* the University nor the names of its contributors may be used to endorse
* or promote products derived from this software without specific prior
* written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
* @(#) Header: extract.h,v 1.12 96/06/20 18:48:42 leres Exp (LBL)
*/
#ifdef LBL_ALIGN
#define EXTRACT_SHORT(p)\
((u_short)\
((u_short)*((u_char *)(p)+0)<<8|\
(u_short)*((u_char *)(p)+1)<<0))
#define EXTRACT_LONG(p)\
((u_int32_t)*((u_char *)(p)+0)<<24|\
(u_int32_t)*((u_char *)(p)+1)<<16|\
(u_int32_t)*((u_char *)(p)+2)<<8|\
(u_int32_t)*((u_char *)(p)+3)<<0)
#else
#define EXTRACT_SHORT(p) ((u_short)ntohs(*(u_short *)(p)))
#define EXTRACT_LONG(p) (ntohl(*(u_int32_t *)(p)))
#endif
|