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
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
/*
* Copyright (C) 2003-2009 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef MPD_POISON_H
#define MPD_POISON_H
#ifndef NDEBUG
#include <string.h>
#endif
/**
* Poisons the specified memory area and marks it as "not accessible".
*
* @param p pointer to the memory area
* @param length number of bytes to poison
*/
static inline void
poison_noaccess(void *p, size_t length)
{
#ifdef NDEBUG
(void)p;
(void)length;
#else
memset(p, 0x01, length);
#endif
}
/**
* Poisons the specified memory area and marks it as "not defined".
*
* @param p pointer to the memory area
* @param length number of bytes to poison
*/
static inline void
poison_undefined(void *p, size_t length)
{
#ifdef NDEBUG
(void)p;
(void)length;
#else
memset(p, 0x02, length);
#endif
}
#endif
|
