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
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
/*
* SPDX-License-Identifier: ISC
*
* Copyright (c) 2012-2015 Todd C. Miller <Todd.Miller@sudo.ws>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <limits.h>
#include "sudo_compat.h"
#include "sudo_dso.h"
#include "sudo_util.h"
#include "sudo_fatal.h"
sudo_dso_public int main(int argc, char *argv[]);
static void
usage(void)
{
fprintf(stderr, "usage: %s plugin.so symbols_file\n", getprogname());
exit(EXIT_FAILURE);
}
int
main(int argc, char *argv[])
{
void *handle, *sym;
const char *plugin_path;
const char *symbols_file;
char *cp, line[LINE_MAX];
FILE *fp;
int ntests = 0, errors = 0;
initprogname(argc > 0 ? argv[0] : "check_symbols");
if (argc != 3)
usage();
plugin_path = argv[1];
symbols_file = argv[2];
handle = sudo_dso_load(plugin_path, SUDO_DSO_LAZY|SUDO_DSO_GLOBAL);
if (handle == NULL) {
const char *errstr = sudo_dso_strerror();
sudo_fatalx_nodebug("unable to load %s: %s", plugin_path,
errstr ? errstr : "unknown error");
}
fp = fopen(symbols_file, "r");
if (fp == NULL)
sudo_fatal_nodebug("unable to open %s", symbols_file);
while (fgets(line, sizeof(line), fp) != NULL) {
ntests++;
if ((cp = strchr(line, '\n')) != NULL)
*cp = '\0';
sym = sudo_dso_findsym(handle, line);
if (sym == NULL) {
const char *errstr = sudo_dso_strerror();
printf("%s: test %d: unable to resolve symbol %s: %s\n",
getprogname(), ntests, line, errstr ? errstr : "unknown error");
errors++;
}
}
/*
* Make sure unexported symbols are not available.
*/
ntests++;
sym = sudo_dso_findsym(handle, "user_in_group");
if (sym != NULL) {
printf("%s: test %d: able to resolve local symbol user_in_group\n",
getprogname(), ntests);
errors++;
}
sudo_dso_unload(handle);
if (ntests != 0) {
printf("%s: %d tests run, %d errors, %d%% success rate\n",
getprogname(), ntests, errors, (ntests - errors) * 100 / ntests);
}
exit(errors);
}
|
