xref: /src/tests/lib/librumpclient/h_exec.c

/*	$NetBSD: h_exec.c,v 1.1 2011/02/15 15:16:46 pooka Exp $	*/

/*
 * Copyright (c) 2011 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
 * CONTRIBUTORS ``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 FOUNDATION OR CONTRIBUTORS 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 <sys/types.h>
#include <sys/socket.h>

#include <netinet/in.h>

#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

/*
 * Uses rumphijack because it's convenient with exec.  XXX: fixme to
 * have sensible exec support in rumpclient.
 */

int
main(int argc, char *argv[])
{
	struct sockaddr_in sin;
	socklen_t slen;
	int s1, s2;
	char buf[12];

	if (argc > 1) {
		if (strcmp(argv[1], "_didexec") == 0) {
			daemon(0, 0); /* detach-me-notnot ergo detach */
			s1 = atoi(argv[2]);
			slen = sizeof(sin);
			/* see below */
			accept(s1, (struct sockaddr *)&sin, &slen);
		}
	}

	/* open and listenize two TCP4 suckets */
	if ((s1 = socket(PF_INET, SOCK_STREAM, 0)) == -1)
		err(1, "socket 1");
	if ((s2 = socket(PF_INET, SOCK_STREAM, 0)) == -1)
		err(1, "socket 2");

	memset(&sin, 0, sizeof(sin));
	sin.sin_len = sizeof(sin);
	sin.sin_family = AF_INET;
	sin.sin_port = htons(1234);

	if (bind(s1, (struct sockaddr *)&sin, sizeof(sin)) == -1)
		err(1, "bind1");
	sin.sin_port = htons(2345);
	if (bind(s2, (struct sockaddr *)&sin, sizeof(sin)) == -1)
		err(1, "bind2");

	if (listen(s1, 1) == -1)
		err(1, "listen1");
	if (listen(s2, 1) == -1)
		err(1, "listen2");

	if (argc == 1) {
		daemon(0, 0);
		slen = sizeof(sin);
		/*
		 * "pause()", but conveniently gets rid of this helper
		 * since we were called with RUMPCLIENT_RETRYCONN_DIE set
		 */
		accept(s1, (struct sockaddr *)&sin, &slen);
	}

	/* omstart! */
	sprintf(buf, "%d", s1);
	if (execl(argv[1], "h_ution", "_didexec", buf, NULL) == -1)
		err(1, "exec");
}