1/*
2 * Copyright 2010, Atis Elsts, the.kfx@gmail.com
3 * Distributed under the terms of the MIT license.
4 */
5
6
7#include <unistd.h>
8#include <memory.h>
9#include <netinet/in.h>
10#include <arpa/inet.h>
11#include <errno.h>
12#include <stdio.h>
13#include <stdlib.h>
14
15
16const unsigned short TEST_PORT = 40000;
17
18
19void
20usage()
21{
22	printf("client [tcp|udp] [4|6] [4|6]\n");
23	exit(1);
24}
25
26
27int
28main(int argc, char *argv[])
29{
30	int socketType = SOCK_DGRAM;
31	int socketFamily1 = AF_INET;
32	int socketFamily2 = AF_INET;
33
34	if (argc > 1) {
35		if (!strcmp(argv[1], "tcp"))
36			socketType = SOCK_STREAM;
37		else if (!strcmp(argv[1], "udp"))
38			socketType = SOCK_DGRAM;
39		else
40			usage();
41	}
42	if (argc > 2) {
43		switch (atoi(argv[2])) {
44		case 4:
45			socketFamily1 = AF_INET;
46			break;
47		case 6:
48			socketFamily1 = AF_INET6;
49			break;
50		default:
51			usage();
52		}
53	}
54	if (argc > 3) {
55		switch (atoi(argv[3])) {
56		case 4:
57			socketFamily2 = AF_INET;
58			break;
59		case 6:
60			socketFamily2 = AF_INET6;
61			break;
62		default:
63			usage();
64		}
65	}
66
67	int fd = socket(socketFamily1, socketType, 0);
68	if (fd < 0) {
69		perror("socket");
70		return -1;
71	}
72
73	sockaddr_storage saddr;
74	memset(&saddr, 0, sizeof(saddr));
75	saddr.ss_family = socketFamily2;
76	((sockaddr_in *) &saddr)->sin_port = htons(TEST_PORT);
77	if (connect(fd, (sockaddr *) &saddr, socketFamily2 == AF_INET ?
78			sizeof(sockaddr_in) : sizeof(sockaddr_in6)) < 0) {
79		perror("connect");
80		close(fd);
81		return -1;
82	}
83
84	const char *buffer = "hello world";
85	unsigned length = strlen(buffer);
86	int status = send(fd, buffer, length, 0);
87	if (status < length) {
88		if (status < 0)
89			perror("send");
90		else if (status == 0)
91			printf("no data sent!\n");
92		else
93			printf("not all data sent!\n");
94	} else
95		printf("send(): success\n");
96	close(fd);
97	return 0;
98}
99