133 lines
3.7 KiB
C
133 lines
3.7 KiB
C
/* $NetBSD: am_glue.c,v 1.4 2010/06/23 18:07:59 yamt Exp $ */
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/*-
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* Copyright (c) 1999 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__RCSID("$NetBSD: am_glue.c,v 1.4 2010/06/23 18:07:59 yamt Exp $");
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#endif /* not lint */
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif /* HAVE_CONFIG_H */
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#include <am_defs.h>
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#include <amu.h>
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#include <rpc/pmap_prot.h>
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#include <rpc/pmap_clnt.h>
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#include <stdbool.h>
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#include "am_glue.h"
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static CLIENT *clnt;
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static struct timeval tv = { 5, 0 };
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/*
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* Appease lint: Properly typecast some numbers defined in
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* src/extern/bsd/am-utils/dist/include/amq_defs.h.
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*/
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#define xAMQ_PROGRAM (rpcprog_t)AMQ_PROGRAM
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#define xAMQ_VERSION (rpcvers_t)AMQ_VERSION
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#define xAMQPROC_SYNC_UMNT (rpcproc_t)AMQPROC_SYNC_UMNT
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static int
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ping_pmap(void)
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{
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u_short port = 0;
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CLIENT *cl;
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struct pmap parms;
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struct sockaddr_in si;
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int s = -1, rv;
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static struct timeval pingtv = { 1, 0 };
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(void)memset(&si, 0, sizeof(si));
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si.sin_family = AF_INET;
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si.sin_len = sizeof(si);
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si.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
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si.sin_port = htons(PMAPPORT);
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if ((cl = clntudp_bufcreate(&si, PMAPPROG, PMAPVERS, pingtv,
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&s, RPCSMALLMSGSIZE, RPCSMALLMSGSIZE)) == NULL)
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return -1;
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parms.pm_prog = PMAPPROG;
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parms.pm_vers = PMAPVERS;
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parms.pm_prot = IPPROTO_UDP;
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parms.pm_port = 0; /* not needed or used */
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rv = CLNT_CALL(cl, (rpcproc_t)PMAPPROC_GETPORT,
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(xdrproc_t)xdr_pmap, &parms,
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(xdrproc_t)xdr_u_short, &port, pingtv) == RPC_SUCCESS ? 0 : -1;
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CLNT_DESTROY(cl);
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return rv;
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}
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static void
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am_init(void)
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{
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static const char *server = "localhost";
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static bool called;
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if (called)
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return;
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called = true;
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if (ping_pmap() == -1)
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return;
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/*
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* Create RPC endpoint
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*/
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/* try tcp first */
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clnt = clnt_create(server, xAMQ_PROGRAM, xAMQ_VERSION, "tcp");
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if (clnt != NULL)
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return;
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/* try udp next */
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clnt = clnt_create(server, xAMQ_PROGRAM, xAMQ_VERSION, "udp");
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if (clnt != NULL) /* set udp timeout */
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(void)clnt_control(clnt, CLSET_RETRY_TIMEOUT, (void *)&tv);
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}
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int
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am_unmount(const char *dirname)
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{
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static struct timeval timeout = { ALLOWED_MOUNT_TIME, 0 };
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amq_sync_umnt result;
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am_init();
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if (clnt == NULL)
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return AMQ_UMNT_FAILED;
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if (clnt_call(clnt, xAMQPROC_SYNC_UMNT, xdr_amq_string, &dirname,
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xdr_amq_sync_umnt, (void *)&result, timeout) != RPC_SUCCESS)
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return AMQ_UMNT_SERVER;
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return result.au_etype;
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}
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