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
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
|
/*
* SPDX-License-Identifier: ISC
*
* Copyright (c) 2011-2013 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 <sys/types.h>
#include <sys/socket.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <ctype.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#define SUDO_ERROR_WRAP 0
#include <sudoers.h>
#include <interfaces.h>
sudo_dso_public int main(int argc, char *argv[]);
static int
check_addr(char *input)
{
int expected, matched;
const char *errstr;
size_t len;
char *cp;
while (isspace((unsigned char)*input))
input++;
/* input: "addr[/mask] 1/0" */
len = strcspn(input, " \t");
cp = input + len;
while (isspace((unsigned char)*cp))
cp++;
expected = (int)sudo_strtonum(cp, 0, 1, &errstr);
if (errstr != NULL)
sudo_fatalx("expecting 0 or 1, got %s", cp);
input[len] = '\0';
matched = addr_matches(input) == ALLOW;
if (matched != expected) {
sudo_warnx("%s %smatched: FAIL", input, matched ? "" : "not ");
return 1;
}
return 0;
}
sudo_noreturn static void
usage(void)
{
fprintf(stderr, "usage: %s [-v] datafile\n", getprogname());
exit(EXIT_FAILURE);
}
int
main(int argc, char *argv[])
{
int ch, ntests = 0, errors = 0;
char *cp, line[2048];
size_t len;
FILE *fp;
initprogname(argc > 0 ? argv[0] : "check_addr");
while ((ch = getopt(argc, argv, "v")) != -1) {
switch (ch) {
case 'v':
/* ignored */
break;
default:
usage();
/* NOTREACHED */
}
}
argc -= optind;
argv += optind;
if (argc != 1)
usage();
fp = fopen(argv[0], "r");
if (fp == NULL)
sudo_fatalx("unable to open %s", argv[0]);
/*
* Input is in the following format. There are two types of
* lines: interfaces, which sets the address and mask of the
* locally connected ethernet interfaces for the lines that
* follow and, address lines that include and address (with
* optional netmask) to match, followed by expected match status
* (1 or 0). E.g.
*
* interfaces: addr1/mask addr2/mask ...
* address: addr[/mask] 1/0
* address: addr[/mask] 1/0
* interfaces: addr3/mask addr4/mask ...
* address: addr[/mask] 1/0
*/
while (fgets(line, sizeof(line), fp) != NULL) {
len = strcspn(line, "\n");
line[len] = '\0';
/* Ignore comments */
if ((cp = strchr(line, '#')) != NULL)
*cp = '\0';
/* Skip blank lines. */
if (line[0] == '\0')
continue;
if (strncmp(line, "interfaces:", sizeof("interfaces:") - 1) == 0) {
if (!set_interfaces(line + sizeof("interfaces:") - 1)) {
sudo_warn("unable to parse interfaces list");
errors++;
}
} else if (strncmp(line, "address:", sizeof("address:") - 1) == 0) {
errors += check_addr(line + sizeof("address:") - 1);
ntests++;
} else {
sudo_warnx("unexpected data line: %s", line);
continue;
}
}
if (ntests != 0) {
printf("check_addr: %d tests run, %d errors, %d%% success rate\n",
ntests, errors, (ntests - errors) * 100 / ntests);
}
exit(errors);
}
|
