1 /* $NetBSD: test-closed.c,v 1.1.1.2 2021/04/07 02:43:15 christos Exp $ */
2 /*
3 * Copyright (c) 2002-2007 Niels Provos <provos@citi.umich.edu>
4 * Copyright (c) 2007-2013 Niels Provos and Nick Mathewson
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28 #include "../util-internal.h"
29 #include "event2/event-config.h"
30 #include <sys/cdefs.h>
31 __RCSID("$NetBSD: test-closed.c,v 1.1.1.2 2021/04/07 02:43:15 christos Exp $");
32
33 #ifdef _WIN32
34 #include <winsock2.h>
35 #else
36 #include <unistd.h>
37 #endif
38 #include <sys/types.h>
39 #include <sys/stat.h>
40 #ifdef EVENT__HAVE_SYS_TIME_H
41 #include <sys/time.h>
42 #endif
43 #ifdef EVENT__HAVE_SYS_SOCKET_H
44 #include <sys/socket.h>
45 #endif
46 #include <fcntl.h>
47 #include <stdlib.h>
48 #include <stdio.h>
49 #include <string.h>
50 #include <errno.h>
51
52 #include <event.h>
53 #include <evutil.h>
54
55 struct timeval timeout = {3, 0};
56
57 static void
closed_cb(evutil_socket_t fd,short event,void * arg)58 closed_cb(evutil_socket_t fd, short event, void *arg)
59 {
60 if (EV_TIMEOUT & event) {
61 printf("%s: Timeout!\n", __func__);
62 exit(1);
63 }
64
65 if (EV_CLOSED & event) {
66 printf("%s: detected socket close with success\n", __func__);
67 return;
68 }
69
70 printf("%s: unable to detect socket close\n", __func__);
71 exit(1);
72 }
73
74 int
main(int argc,char ** argv)75 main(int argc, char **argv)
76 {
77 struct event_base *base;
78 struct event_config *cfg;
79 struct event *ev;
80 const char *test = "test string";
81 evutil_socket_t pair[2];
82
83 /* Initialize the library and check if the backend
84 supports EV_FEATURE_EARLY_CLOSE
85 */
86 cfg = event_config_new();
87 event_config_require_features(cfg, EV_FEATURE_EARLY_CLOSE);
88 base = event_base_new_with_config(cfg);
89 event_config_free(cfg);
90 if (!base) {
91 /* Backend doesn't support EV_FEATURE_EARLY_CLOSE */
92 return 0;
93 }
94
95 /* Create a pair of sockets */
96 if (evutil_socketpair(AF_UNIX, SOCK_STREAM, 0, pair) == -1)
97 return (1);
98
99 /* Send some data on socket 0 and immediately close it */
100 if (send(pair[0], test, (int)strlen(test)+1, 0) < 0)
101 return (1);
102 shutdown(pair[0], EVUTIL_SHUT_WR);
103
104 /* Dispatch */
105 ev = event_new(base, pair[1], EV_CLOSED | EV_TIMEOUT, closed_cb, event_self_cbarg());
106 event_add(ev, &timeout);
107 event_base_dispatch(base);
108
109 /* Finalize library */
110 event_free(ev);
111 event_base_free(base);
112 return 0;
113 }
114
115