1 /* $NetBSD: test-closed.c,v 1.6 2024/08/18 20:47:23 christos Exp $ */
2
3 /*
4 * Copyright (c) 2002-2007 Niels Provos <provos@citi.umich.edu>
5 * Copyright (c) 2007-2013 Niels Provos and Nick Mathewson
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29 #include "../util-internal.h"
30 #include "event2/event-config.h"
31
32 #ifdef _WIN32
33 #include <winsock2.h>
34 #else
35 #include <unistd.h>
36 #endif
37 #include <sys/types.h>
38 #include <sys/stat.h>
39 #ifdef EVENT__HAVE_SYS_TIME_H
40 #include <sys/time.h>
41 #endif
42 #ifdef EVENT__HAVE_SYS_SOCKET_H
43 #include <sys/socket.h>
44 #endif
45 #include <fcntl.h>
46 #include <stdlib.h>
47 #include <stdio.h>
48 #include <string.h>
49 #include <errno.h>
50
51 #include <event.h>
52 #include <evutil.h>
53
54 struct timeval timeout = {3, 0};
55
56 static void
closed_cb(evutil_socket_t fd,short event,void * arg)57 closed_cb(evutil_socket_t fd, short event, void *arg)
58 {
59 if (EV_TIMEOUT & event) {
60 printf("%s: Timeout!\n", __func__);
61 exit(1);
62 }
63
64 if (EV_CLOSED & event) {
65 printf("%s: detected socket close with success\n", __func__);
66 return;
67 }
68
69 printf("%s: unable to detect socket close\n", __func__);
70 exit(1);
71 }
72
73 int
main(int argc,char ** argv)74 main(int argc, char **argv)
75 {
76 struct event_base *base;
77 struct event_config *cfg;
78 struct event *ev;
79 const char *test = "test string";
80 evutil_socket_t pair[2];
81
82 /* Initialize the library and check if the backend
83 supports EV_FEATURE_EARLY_CLOSE
84 */
85 cfg = event_config_new();
86 event_config_require_features(cfg, EV_FEATURE_EARLY_CLOSE);
87 base = event_base_new_with_config(cfg);
88 event_config_free(cfg);
89 if (!base) {
90 /* Backend doesn't support EV_FEATURE_EARLY_CLOSE */
91 return 0;
92 }
93
94 /* Create a pair of sockets */
95 if (evutil_socketpair(AF_UNIX, SOCK_STREAM, 0, pair) == -1)
96 return (1);
97
98 /* Send some data on socket 0 and immediately close it */
99 if (send(pair[0], test, (int)strlen(test)+1, 0) < 0)
100 return (1);
101 shutdown(pair[0], EVUTIL_SHUT_WR);
102
103 /* Dispatch */
104 ev = event_new(base, pair[1], EV_CLOSED | EV_TIMEOUT, closed_cb, event_self_cbarg());
105 event_add(ev, &timeout);
106 event_base_dispatch(base);
107
108 /* Finalize library */
109 event_free(ev);
110 event_base_free(base);
111 return 0;
112 }
113
114