GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libc/rpc/clnt_simple.c Lines: 0 46 0.0 %
Date: 2017-11-13 Branches: 0 26 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: clnt_simple.c,v 1.18 2015/08/20 21:49:29 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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 * clnt_simple.c
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 * Simplified front end to rpc.
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 */
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#include <sys/socket.h>
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#include <netdb.h>
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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 <unistd.h>
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#include <limits.h>
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#include <rpc/rpc.h>
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static struct callrpc_private {
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	CLIENT	*client;
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	int	socket;
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	int	oldprognum, oldversnum, valid;
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	char	*oldhost;
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} *callrpc_private;
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int
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callrpc(char *host, int prognum, int versnum, int procnum, xdrproc_t inproc,
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    char *in, xdrproc_t outproc, char *out)
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{
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	struct callrpc_private *save_callrpc_private = callrpc_private;
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	struct callrpc_private *crp = callrpc_private;
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	struct sockaddr_in server_addr;
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	enum clnt_stat clnt_stat;
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	struct hostent *hp;
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	struct timeval timeout, tottimeout;
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	if (crp == NULL) {
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		crp = calloc(1, sizeof (*crp));
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		if (crp == NULL)
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			return RPC_SYSTEMERROR;
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		callrpc_private = crp;
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	}
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	if (crp->oldhost == NULL) {
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		crp->oldhost = malloc(HOST_NAME_MAX+1);
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		if (crp->oldhost == NULL) {
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			free(crp);
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			callrpc_private = save_callrpc_private;
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			return RPC_SYSTEMERROR;
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		}
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		crp->oldhost[0] = 0;
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		crp->socket = RPC_ANYSOCK;
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	}
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	if (crp->valid && crp->oldprognum == prognum && crp->oldversnum == versnum
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		&& strcmp(crp->oldhost, host) == 0) {
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		/* reuse old client */
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	} else {
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		crp->valid = 0;
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		if (crp->socket != -1) {
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			(void)close(crp->socket);
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			crp->socket = -1;
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		}
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		if (crp->client) {
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			CLNT_DESTROY(crp->client);
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			crp->client = NULL;
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		}
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		crp->socket = RPC_ANYSOCK;
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		if ((hp = gethostbyname(host)) == NULL)
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			return ((int) RPC_UNKNOWNHOST);
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		timeout.tv_usec = 0;
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		timeout.tv_sec = 5;
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		memset(&server_addr, 0, sizeof(server_addr));
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		memcpy((char *)&server_addr.sin_addr, hp->h_addr, hp->h_length);
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		server_addr.sin_len = sizeof(struct sockaddr_in);
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		server_addr.sin_family = AF_INET;
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		server_addr.sin_port =  0;
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		if ((crp->client = clntudp_create(&server_addr, (u_long)prognum,
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		    (u_long)versnum, timeout, &crp->socket)) == NULL)
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			return ((int) rpc_createerr.cf_stat);
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		crp->valid = 1;
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		crp->oldprognum = prognum;
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		crp->oldversnum = versnum;
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		strlcpy(crp->oldhost, host, HOST_NAME_MAX+1);
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	}
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	tottimeout.tv_sec = 25;
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	tottimeout.tv_usec = 0;
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	clnt_stat = clnt_call(crp->client, procnum, inproc, in,
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	    outproc, out, tottimeout);
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	/*
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	 * if call failed, empty cache
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	 */
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	if (clnt_stat != RPC_SUCCESS)
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		crp->valid = 0;
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	return ((int) clnt_stat);
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}