xref: /freebsd/contrib/blocklist/test/cltest.c (revision 069ac18495ad8fde2748bc94b0f80a50250bb01d)
1 /*	$NetBSD: cltest.c,v 1.6 2015/01/22 05:44:28 christos Exp $	*/
2 
3 /*-
4  * Copyright (c) 2015 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Christos Zoulas.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 #ifdef HAVE_CONFIG_H
32 #include "config.h"
33 #endif
34 
35 #include <sys/cdefs.h>
36 __RCSID("$NetBSD: cltest.c,v 1.6 2015/01/22 05:44:28 christos Exp $");
37 
38 #include <sys/types.h>
39 #include <sys/socket.h>
40 #include <netinet/in.h>
41 #include <arpa/inet.h>
42 
43 #include <stdio.h>
44 #include <string.h>
45 #include <unistd.h>
46 #include <stdlib.h>
47 #include <err.h>
48 #ifdef HAVE_UTIL_H
49 #include <util.h>
50 #endif
51 
52 static __dead void
53 usage(int c)
54 {
55 	warnx("Unknown option `%c'", (char)c);
56 	fprintf(stderr, "Usage: %s [-u] [-a <addr>] [-m <msg>] [-p <port>]\n",
57 	    getprogname());
58 	exit(EXIT_FAILURE);
59 }
60 
61 static void
62 getaddr(const char *a, in_port_t p, struct sockaddr_storage *ss,
63     socklen_t *slen)
64 {
65 	int c;
66 
67 	memset(ss, 0, sizeof(*ss));
68 	p = htons(p);
69 
70 	if (strchr(a, ':')) {
71 		struct sockaddr_in6 *s6 = (void *)ss;
72 		c = inet_pton(AF_INET6, a, &s6->sin6_addr);
73 		s6->sin6_family = AF_INET6;
74 		*slen = sizeof(*s6);
75 		s6->sin6_port = p;
76 	} else {
77 		struct sockaddr_in *s = (void *)ss;
78 		c = inet_pton(AF_INET, a, &s->sin_addr);
79 		s->sin_family = AF_INET;
80 		*slen = sizeof(*s);
81 		s->sin_port = p;
82 	}
83 #ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
84 	ss->ss_len = (uint8_t)*slen;
85 #endif
86 	if (c == -1)
87 		err(EXIT_FAILURE, "Invalid address `%s'", a);
88 }
89 
90 int
91 main(int argc, char *argv[])
92 {
93 	int sfd;
94 	int c;
95 	struct sockaddr_storage ss;
96 	const char *msg = "hello";
97 	const char *addr = "127.0.0.1";
98 	int type = SOCK_STREAM;
99 	in_port_t port = 6161;
100 	socklen_t slen;
101 	char buf[128];
102 
103 	while ((c = getopt(argc, argv, "a:m:p:u")) != -1) {
104 		switch (c) {
105 		case 'a':
106 			addr = optarg;
107 			break;
108 		case 'm':
109 			msg = optarg;
110 			break;
111 		case 'p':
112 			port = (in_port_t)atoi(optarg);
113 			break;
114 		case 'u':
115 			type = SOCK_DGRAM;
116 			break;
117 		default:
118 			usage(c);
119 		}
120 	}
121 
122 	getaddr(addr, port, &ss, &slen);
123 
124 	if ((sfd = socket(AF_INET, type, 0)) == -1)
125 		err(EXIT_FAILURE, "socket");
126 
127 	sockaddr_snprintf(buf, sizeof(buf), "%a:%p", (const void *)&ss);
128 	printf("connecting to: %s\n", buf);
129 	if (connect(sfd, (const void *)&ss, slen) == -1)
130 		err(EXIT_FAILURE, "connect");
131 
132 	size_t len = strlen(msg) + 1;
133 	if (write(sfd, msg, len) != (ssize_t)len)
134 		err(EXIT_FAILURE, "write");
135 	return 0;
136 }
137