1 /*
2 * Copyright © 2012 Collabora, Ltd.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining
5 * a copy of this software and associated documentation files (the
6 * "Software"), to deal in the Software without restriction, including
7 * without limitation the rights to use, copy, modify, merge, publish,
8 * distribute, sublicense, and/or sell copies of the Software, and to
9 * permit persons to whom the Software is furnished to do so, subject to
10 * the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the
13 * next paragraph) shall be included in all copies or substantial
14 * portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
20 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
21 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23 * SOFTWARE.
24 */
25
26 #include <stdlib.h>
27 #include <stdio.h>
28 #include <errno.h>
29 #include <limits.h>
30
31 #include "test-runner.h"
32
33 static int
parse_count(const char * str,int * value)34 parse_count(const char *str, int *value)
35 {
36 char *end;
37 long v;
38
39 errno = 0;
40 v = strtol(str, &end, 10);
41 if ((errno == ERANGE && (v == LONG_MAX || v == LONG_MIN)) ||
42 (errno != 0 && v == 0) ||
43 (end == str) ||
44 (*end != '\0')) {
45 return -1;
46 }
47
48 if (v < 0 || v > INT_MAX) {
49 return -1;
50 }
51
52 *value = v;
53 return 0;
54 }
55
main(int argc,char * argv[])56 int main(int argc, char *argv[])
57 {
58 int expected;
59
60 if (argc != 2)
61 goto help_out;
62
63 if (parse_count(argv[1], &expected) < 0)
64 goto help_out;
65
66 if (count_open_fds() == expected)
67 return EXIT_SUCCESS;
68 else
69 return EXIT_FAILURE;
70
71 help_out:
72 fprintf(stderr, "Usage: %s N\n"
73 "where N is the expected number of open file descriptors.\n"
74 "This program exits with a failure if the number "
75 "does not match exactly.\n", argv[0]);
76
77 return EXIT_FAILURE;
78 }
79