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 |
34 | parse_count(const char *str, int *value) |
35 | { |
36 | char *end; |
37 | long v; |
38 | |
39 | errno = 0; |
40 | v = strtol(nptr: str, endptr: &end, base: 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 | |
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(str: argv[1], value: &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, format: "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 | |