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