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
62
63
64
|
/* Check cookie initialization for many auditors. Auditor template.
Copyright (C) 2019-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
/* The macro MOD must be defined to the number of this auditor (an
integer) before including this file. */
#include <link.h>
#include <stdio.h>
#include <unistd.h>
/* Error counter for delayed error reporting. */
static int errors;
unsigned int
la_version (unsigned int version)
{
return version;
}
unsigned int
la_objopen (struct link_map *map, Lmid_t lmid,
uintptr_t *cookie)
{
struct link_map *cookie_map = (struct link_map *) *cookie;
printf ("info: %d, la_objopen: map=%p name=%s cookie=%p:%p diff=%td\n",
MOD, map, map->l_name, cookie, cookie_map,
(char *) cookie - (char *) map);
fflush (stdout);
if (map != cookie_map)
{
printf ("error: %d, la_objopen:"
" map address does not match cookie value\n",
MOD);
fflush (stdout);
++errors;
}
return 0;
}
extern unsigned int
la_objclose (uintptr_t *__cookie)
{
if (errors != 0)
{
printf ("error: exiting due to previous errors");
_exit (1);
}
return 0;
}
|
