external/bsd/blacklist/test/cltest.c

   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 }