GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libc/rpc/svc_simple.c Lines: 0 41 0.0 %
Date: 2017-11-13 Branches: 0 28 0.0 %

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/*	$OpenBSD: svc_simple.c,v 1.13 2015/09/01 19:54:01 deraadt Exp $ */
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/*
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 * Copyright (c) 2010, Oracle America, Inc.
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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 are
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 * met:
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 *
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 *     * 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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 *     * Redistributions in binary form must reproduce the above
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 *       copyright notice, this list of conditions and the following
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 *       disclaimer in the documentation and/or other materials
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 *       provided with the distribution.
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 *     * Neither the name of the "Oracle America, Inc." nor the names of its
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 *       contributors may be used to endorse or promote products derived
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 *       from this software without specific prior written permission.
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 *
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 *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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 *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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 *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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 *   FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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 *   COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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 *   INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 *   DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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 *   GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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 *   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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 *   WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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 *   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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 *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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/*
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 * svc_simple.c
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 * Simplified front end to rpc.
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 */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <rpc/rpc.h>
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#include <rpc/pmap_clnt.h>
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#include <sys/socket.h>
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#include <netdb.h>
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static struct proglst {
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	char *(*p_progname)();
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	int  p_prognum;
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	int  p_procnum;
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	xdrproc_t p_inproc, p_outproc;
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	struct proglst *p_nxt;
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} *proglst;
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static void universal(struct svc_req *, SVCXPRT *);
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static SVCXPRT *transp;
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int
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registerrpc(int prognum, int versnum, int procnum, char *(*progname)(),
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    xdrproc_t inproc, xdrproc_t outproc)
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{
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	struct proglst *pl;
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	if (procnum == NULLPROC)
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		return (-1);
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	if (transp == NULL) {
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		transp = svcudp_create(RPC_ANYSOCK);
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		if (transp == NULL)
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			return (-1);
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	}
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	(void) pmap_unset((u_long)prognum, (u_long)versnum);
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	if (!svc_register(transp, (u_long)prognum, (u_long)versnum,
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	    universal, IPPROTO_UDP))
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		return (-1);
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	pl = malloc(sizeof(struct proglst));
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	if (pl == NULL)
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		return (-1);
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	pl->p_progname = progname;
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	pl->p_prognum = prognum;
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	pl->p_procnum = procnum;
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	pl->p_inproc = inproc;
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	pl->p_outproc = outproc;
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	pl->p_nxt = proglst;
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	proglst = pl;
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	return (0);
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}
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static void
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universal(struct svc_req *rqstp, SVCXPRT *transp)
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{
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	int prog, proc;
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	char *outdata;
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	char xdrbuf[UDPMSGSIZE];
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	struct proglst *pl;
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	/*
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	 * enforce "procnum 0 is echo" convention
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	 */
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	if (rqstp->rq_proc == NULLPROC) {
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		if (svc_sendreply(transp, xdr_void, NULL) == FALSE)
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			exit(1);
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		return;
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	}
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	prog = rqstp->rq_prog;
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	proc = rqstp->rq_proc;
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	for (pl = proglst; pl != NULL; pl = pl->p_nxt)
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		if (pl->p_prognum == prog && pl->p_procnum == proc) {
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			/* decode arguments into a CLEAN buffer */
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			memset(xdrbuf, 0, sizeof(xdrbuf)); /* required ! */
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			if (!svc_getargs(transp, pl->p_inproc, xdrbuf)) {
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				svcerr_decode(transp);
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				return;
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			}
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			outdata = (*(pl->p_progname))(xdrbuf);
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			if (outdata == NULL &&
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			    pl->p_outproc != xdr_void)
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				/* there was an error */
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				return;
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			if (!svc_sendreply(transp, pl->p_outproc, outdata))
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				exit(1);
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			/* free the decoded arguments */
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			(void)svc_freeargs(transp, pl->p_inproc, xdrbuf);
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			return;
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		}
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	exit(1);
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}
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