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 <sys/param.h>*/
33 #include <netdb.h>
34 #include <stdio.h>
35 #include <stdlib.h>
36 #include <unistd.h>
37 #include <errno.h>
38 #include <string.h>
39 #include <err.h>
40
41 #include "stress.h"
42
43 static int bufsize;
44
45 int
setup(int nb)46 setup(int nb)
47 {
48 bufsize = 2 << random_int(1, 12);
49 return (0);
50 }
51
52 void
cleanup(void)53 cleanup(void)
54 {
55 }
56
57 int
test(void)58 test(void)
59 {
60 struct sockaddr_in sock_in;
61 struct hostent *host;
62 char *hostname;
63 int f, i, n;
64 int *buf;
65
66 bzero((char *)&sock_in, sizeof(sock_in));
67 sock_in.sin_family = AF_INET;
68 f = socket(AF_INET, SOCK_DGRAM, 0);
69 if (f < 0)
70 err(1, "socket");
71 if (bind(f, (struct sockaddr *)&sock_in, sizeof(sock_in)) < 0) {
72 warn("bind");
73 return (1);
74 }
75 if (getenv("BLASTHOST") == NULL)
76 hostname = "localhost";
77 else
78 hostname = getenv("BLASTHOST");
79 host = gethostbyname(hostname);
80 if (host) {
81 sock_in.sin_family = host->h_addrtype;
82 bcopy(host->h_addr, &sock_in.sin_addr, host->h_length);
83 } else {
84 sock_in.sin_family = AF_INET;
85 sock_in.sin_addr.s_addr = inet_addr(hostname);
86 if (sock_in.sin_addr.s_addr == -1) {
87 err(1, "host: %s", hostname);
88 }
89 }
90 sock_in.sin_port = htons(9);
91
92 if (connect(f, (struct sockaddr *)&sock_in, sizeof(sock_in)) < 0)
93 err(1, "connect");
94
95 if ((buf = calloc(1, bufsize)) == NULL)
96 err(1, "malloc(%d), %s:%d", bufsize, __FILE__, __LINE__);
97
98 if (op->verbose > 1)
99 printf("udp %s:9 with %d bytes\n", hostname, bufsize);
100 for (i = 0; i < 128 && done_testing == 0; i++) {
101 n = write(f, buf, bufsize);
102 if (n == -1 && errno == ENOBUFS)
103 continue;
104 if (n == -1 && errno == ECONNREFUSED)
105 break;
106 if (n == -1)
107 err(1, "write(%d) #%d", bufsize, i);
108 if (n == 0) break;
109 }
110 free(buf);
111 close(f);
112 return (0);
113 }
114