xref: /netbsd-src/external/bsd/ntp/dist/sntp/libevent/test/test-eof.c (revision eabc0478de71e4e011a5b4e0392741e01d491794)

/*	$NetBSD: test-eof.c,v 1.6 2024/08/18 20:47:23 christos Exp $	*/

/*
 * Copyright (c) 2002-2007 Niels Provos <provos@citi.umich.edu>
 * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
#include "../util-internal.h"
#include "event2/event-config.h"

#ifdef _WIN32
#include <winsock2.h>
#else
#include <unistd.h>
#endif
#include <sys/types.h>
#include <sys/stat.h>
#ifdef EVENT__HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#ifdef EVENT__HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#include <fcntl.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>

#include <event.h>
#include <evutil.h>

int test_okay = 1;
int called = 0;
struct timeval timeout = {60, 0};

static void
read_cb(evutil_socket_t fd, short event, void *arg)
{
	char buf[256];
	int len;

	if (EV_TIMEOUT & event) {
		printf("%s: Timeout!\n", __func__);
		exit(1);
	}

	len = recv(fd, buf, sizeof(buf), 0);

	printf("%s: read %d%s\n", __func__,
	    len, len ? "" : " - means EOF");

	if (len) {
		if (!called)
			event_add(arg, &timeout);
	} else if (called == 1)
		test_okay = 0;

	called++;
}

int
main(int argc, char **argv)
{
	struct event ev;
	const char *test = "test string";
	evutil_socket_t pair[2];

#ifdef _WIN32
	WORD wVersionRequested;
	WSADATA wsaData;

	wVersionRequested = MAKEWORD(2, 2);

	(void) WSAStartup(wVersionRequested, &wsaData);
#endif

	if (evutil_socketpair(AF_UNIX, SOCK_STREAM, 0, pair) == -1)
		return (1);


	if (send(pair[0], test, (int)strlen(test)+1, 0) < 0)
		return (1);
	shutdown(pair[0], EVUTIL_SHUT_WR);

	/* Initialize the event library */
	event_init();

	/* Initialize one event */
	event_set(&ev, pair[1], EV_READ | EV_TIMEOUT, read_cb, &ev);

	event_add(&ev, &timeout);

	event_dispatch();

	return (test_okay);
}