1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) 2014 Oracle and/or its affiliates. All Rights Reserved.
4 * Copyright (c) 2019 Petr Vorel <[email protected]>
5 * Author: Alexey Kodanev <[email protected]>
6 */
7
8 #define TST_NO_DEFAULT_MAIN
9 #include <stdio.h>
10
11 #include "tst_safe_net.h"
12 #include "tst_test.h"
13
help(const char * fname)14 static void help(const char *fname)
15 {
16 printf("usage: %s FAMILY TYPE\n", fname);
17 printf("FAMILY := { ipv4 | ipv6 }\n");
18 printf("TYPE := { stream | dgram }\n");
19 }
20
main(int argc,char * argv[])21 int main(int argc, char *argv[])
22 {
23 int family = 0, type = 0;
24 int opt;
25
26 while ((opt = getopt(argc, argv, ":h")) != -1) {
27 switch (opt) {
28 case 'h':
29 help(argv[0]);
30 return 0;
31 default:
32 help(argv[0]);
33 return 1;
34 }
35 }
36
37 if (argc != 3) {
38 help(argv[0]);
39 return 1;
40 }
41
42 if (!strcmp(argv[1], "ipv4"))
43 family = AF_INET;
44 else if (!strcmp(argv[1], "ipv6"))
45 family = AF_INET6;
46
47 if (!strcmp(argv[2], "stream"))
48 type = SOCK_STREAM;
49 else if (!strcmp(argv[2], "dgram"))
50 type = SOCK_DGRAM;
51
52 if (!family || !type) {
53 help(argv[0]);
54 return 1;
55 }
56
57 printf("%d", ntohs(TST_GET_UNUSED_PORT(family, type)));
58 return 0;
59 }
60