xref: /freebsd/contrib/ntp/sntp/libevent/test/test-eof.c (revision af23369a6deaaeb612ab266eb88b8bb8d560c322)
1 /*
2  * Copyright (c) 2002-2007 Niels Provos <provos@citi.umich.edu>
3  * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson
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  * 3. The name of the author may not be used to endorse or promote products
14  *    derived from this software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26  */
27 #include "event2/event-config.h"
28 
29 #ifdef _WIN32
30 #include <winsock2.h>
31 #else
32 #include <unistd.h>
33 #endif
34 #include <sys/types.h>
35 #include <sys/stat.h>
36 #ifdef EVENT__HAVE_SYS_TIME_H
37 #include <sys/time.h>
38 #endif
39 #ifdef EVENT__HAVE_SYS_SOCKET_H
40 #include <sys/socket.h>
41 #endif
42 #include <fcntl.h>
43 #include <stdlib.h>
44 #include <stdio.h>
45 #include <string.h>
46 #include <errno.h>
47 
48 #include <event.h>
49 #include <evutil.h>
50 
51 #ifdef EVENT____func__
52 #define __func__ EVENT____func__
53 #endif
54 
55 int test_okay = 1;
56 int called = 0;
57 struct timeval timeout = {60, 0};
58 
59 static void
60 read_cb(evutil_socket_t fd, short event, void *arg)
61 {
62 	char buf[256];
63 	int len;
64 
65 	if (EV_TIMEOUT & event) {
66 		printf("%s: Timeout!\n", __func__);
67 		exit(1);
68 	}
69 
70 	len = recv(fd, buf, sizeof(buf), 0);
71 
72 	printf("%s: read %d%s\n", __func__,
73 	    len, len ? "" : " - means EOF");
74 
75 	if (len) {
76 		if (!called)
77 			event_add(arg, &timeout);
78 	} else if (called == 1)
79 		test_okay = 0;
80 
81 	called++;
82 }
83 
84 #ifndef SHUT_WR
85 #define SHUT_WR 1
86 #endif
87 
88 int
89 main(int argc, char **argv)
90 {
91 	struct event ev;
92 	const char *test = "test string";
93 	evutil_socket_t pair[2];
94 
95 #ifdef _WIN32
96 	WORD wVersionRequested;
97 	WSADATA wsaData;
98 
99 	wVersionRequested = MAKEWORD(2, 2);
100 
101 	(void) WSAStartup(wVersionRequested, &wsaData);
102 #endif
103 
104 	if (evutil_socketpair(AF_UNIX, SOCK_STREAM, 0, pair) == -1)
105 		return (1);
106 
107 
108 	if (send(pair[0], test, (int)strlen(test)+1, 0) < 0)
109 		return (1);
110 	shutdown(pair[0], SHUT_WR);
111 
112 	/* Initalize the event library */
113 	event_init();
114 
115 	/* Initalize one event */
116 	event_set(&ev, pair[1], EV_READ | EV_TIMEOUT, read_cb, &ev);
117 
118 	event_add(&ev, &timeout);
119 
120 	event_dispatch();
121 
122 	return (test_okay);
123 }
124 
125