/*	$NetBSD: am_glue.c,v 1.1 2009/01/16 17:31:22 christos Exp $	*/

/*-
 * Copyright (c) 1999 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/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: am_glue.c,v 1.1 2009/01/16 17:31:22 christos Exp $");
#endif /* not lint */

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif /* HAVE_CONFIG_H */
#include <am_defs.h>
#include <amu.h>

#include "am_glue.h"

static CLIENT *clnt;

/*
 * Appease lint: Properly typecast some numbers defined in
 * src/extern/bsd/am-utils/dist/include/amq_defs.h.
 */
#define	xAMQ_PROGRAM		(rpcprog_t)AMQ_PROGRAM
#define xAMQ_VERSION		(rpcvers_t)AMQ_VERSION
#define xAMQPROC_SYNC_UMNT	(rpcproc_t)AMQPROC_SYNC_UMNT

void
am_init(void)
{
	static struct timeval tv = { 5, 0 };
	static const char *server = "localhost";

	/*
	 * Create RPC endpoint
	 */
	/* try tcp first */
	clnt = clnt_create(server, xAMQ_PROGRAM, xAMQ_VERSION, "tcp");
	if (clnt != NULL)
		return;

	/* try udp next */
	clnt = clnt_create(server, xAMQ_PROGRAM, xAMQ_VERSION, "udp");
	if (clnt != NULL)	/* set udp timeout */
		(void)clnt_control(clnt, CLSET_RETRY_TIMEOUT, (void *)&tv);
}

int
am_unmount(const char *dirname)
{
	static struct timeval timeout = { ALLOWED_MOUNT_TIME, 0 };
	amq_sync_umnt result;

	if (clnt == NULL)
		return AMQ_UMNT_FAILED;

	if (clnt_call(clnt, xAMQPROC_SYNC_UMNT, xdr_amq_string, &dirname,
	    xdr_amq_sync_umnt, (void *)&result, timeout) != RPC_SUCCESS)
		return AMQ_UMNT_SERVER;

	return result.au_etype;
}