1*8a272653SPeter Holm /*-
2*8a272653SPeter Holm * Copyright (c) 2008 Peter Holm <pho@FreeBSD.org>
3*8a272653SPeter Holm * All rights reserved.
4*8a272653SPeter Holm *
5*8a272653SPeter Holm * Redistribution and use in source and binary forms, with or without
6*8a272653SPeter Holm * modification, are permitted provided that the following conditions
7*8a272653SPeter Holm * are met:
8*8a272653SPeter Holm * 1. Redistributions of source code must retain the above copyright
9*8a272653SPeter Holm * notice, this list of conditions and the following disclaimer.
10*8a272653SPeter Holm * 2. Redistributions in binary form must reproduce the above copyright
11*8a272653SPeter Holm * notice, this list of conditions and the following disclaimer in the
12*8a272653SPeter Holm * documentation and/or other materials provided with the distribution.
13*8a272653SPeter Holm *
14*8a272653SPeter Holm * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15*8a272653SPeter Holm * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16*8a272653SPeter Holm * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17*8a272653SPeter Holm * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18*8a272653SPeter Holm * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19*8a272653SPeter Holm * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20*8a272653SPeter Holm * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21*8a272653SPeter Holm * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22*8a272653SPeter Holm * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23*8a272653SPeter Holm * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24*8a272653SPeter Holm * SUCH DAMAGE.
25*8a272653SPeter Holm *
26*8a272653SPeter Holm */
27*8a272653SPeter Holm
28*8a272653SPeter Holm #include <sys/types.h>
29*8a272653SPeter Holm #include <sys/socket.h>
30*8a272653SPeter Holm #include <netinet/in.h>
31*8a272653SPeter Holm #include <arpa/inet.h>
32*8a272653SPeter Holm #include <err.h>
33*8a272653SPeter Holm #include <errno.h>
34*8a272653SPeter Holm #include <netdb.h>
35*8a272653SPeter Holm #include <stdio.h>
36*8a272653SPeter Holm #include <stdlib.h>
37*8a272653SPeter Holm #include <string.h>
38*8a272653SPeter Holm #include <unistd.h>
39*8a272653SPeter Holm
40*8a272653SPeter Holm #include "stress.h"
41*8a272653SPeter Holm
42*8a272653SPeter Holm static int bufsize;
43*8a272653SPeter Holm
44*8a272653SPeter Holm int
setup(int nb __unused)45*8a272653SPeter Holm setup(int nb __unused)
46*8a272653SPeter Holm {
47*8a272653SPeter Holm bufsize = 2 << random_int(1, 12);
48*8a272653SPeter Holm return (0);
49*8a272653SPeter Holm }
50*8a272653SPeter Holm
51*8a272653SPeter Holm void
cleanup(void)52*8a272653SPeter Holm cleanup(void)
53*8a272653SPeter Holm {
54*8a272653SPeter Holm }
55*8a272653SPeter Holm
56*8a272653SPeter Holm int
test(void)57*8a272653SPeter Holm test(void)
58*8a272653SPeter Holm {
59*8a272653SPeter Holm struct sockaddr_in sock_in;
60*8a272653SPeter Holm struct hostent *host;
61*8a272653SPeter Holm const char *hostname;
62*8a272653SPeter Holm int f, i, n;
63*8a272653SPeter Holm int *buf;
64*8a272653SPeter Holm
65*8a272653SPeter Holm bzero((char *)&sock_in, sizeof(sock_in));
66*8a272653SPeter Holm sock_in.sin_family = AF_INET;
67*8a272653SPeter Holm f = socket(AF_INET, SOCK_DGRAM, 0);
68*8a272653SPeter Holm if (f < 0)
69*8a272653SPeter Holm err(1, "socket");
70*8a272653SPeter Holm if (bind(f, (struct sockaddr *)&sock_in, sizeof(sock_in)) < 0) {
71*8a272653SPeter Holm warn("bind");
72*8a272653SPeter Holm return (1);
73*8a272653SPeter Holm }
74*8a272653SPeter Holm if (getenv("BLASTHOST") == NULL)
75*8a272653SPeter Holm hostname = "localhost";
76*8a272653SPeter Holm else
77*8a272653SPeter Holm hostname = getenv("BLASTHOST");
78*8a272653SPeter Holm host = gethostbyname(hostname);
79*8a272653SPeter Holm if (host) {
80*8a272653SPeter Holm sock_in.sin_family = host->h_addrtype;
81*8a272653SPeter Holm bcopy(host->h_addr, &sock_in.sin_addr, host->h_length);
82*8a272653SPeter Holm } else {
83*8a272653SPeter Holm sock_in.sin_family = AF_INET;
84*8a272653SPeter Holm sock_in.sin_addr.s_addr = inet_addr(hostname);
85*8a272653SPeter Holm if (sock_in.sin_addr.s_addr == INADDR_NONE) {
86*8a272653SPeter Holm err(1, "host: %s", hostname);
87*8a272653SPeter Holm }
88*8a272653SPeter Holm }
89*8a272653SPeter Holm sock_in.sin_port = htons(9);
90*8a272653SPeter Holm
91*8a272653SPeter Holm if (connect(f, (struct sockaddr *)&sock_in, sizeof(sock_in)) < 0)
92*8a272653SPeter Holm err(1, "connect");
93*8a272653SPeter Holm
94*8a272653SPeter Holm if ((buf = calloc(1, bufsize)) == NULL)
95*8a272653SPeter Holm err(1, "malloc(%d), %s:%d", bufsize, __FILE__, __LINE__);
96*8a272653SPeter Holm
97*8a272653SPeter Holm if (op->verbose > 1)
98*8a272653SPeter Holm printf("udp %s:9 with %d bytes\n", hostname, bufsize);
99*8a272653SPeter Holm for (i = 0; i < 128 && done_testing == 0; i++) {
100*8a272653SPeter Holm n = write(f, buf, bufsize);
101*8a272653SPeter Holm if (n == -1 && errno == ENOBUFS)
102*8a272653SPeter Holm continue;
103*8a272653SPeter Holm if (n == -1 && errno == ECONNREFUSED)
104*8a272653SPeter Holm break;
105*8a272653SPeter Holm if (n == -1)
106*8a272653SPeter Holm err(1, "write(%d) #%d", bufsize, i);
107*8a272653SPeter Holm if (n == 0) break;
108*8a272653SPeter Holm }
109*8a272653SPeter Holm free(buf);
110*8a272653SPeter Holm close(f);
111*8a272653SPeter Holm return (0);
112*8a272653SPeter Holm }
113