NetBSD-5.0.2/usr.sbin/yppoll/yppoll.c
/* $NetBSD: yppoll.c,v 1.14 2008/01/25 19:58:54 christos Exp $ */
/*
* Copyright (c) 1992, 1993 Theo de Raadt <deraadt@fsa.ca>
* 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 AUTHOR ``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 AUTHOR 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.
*/
/*
* Copyright (c) 1992, 1993 John Brezak
* 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.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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: yppoll.c,v 1.14 2008/01/25 19:58:54 christos Exp $");
#endif /* not lint */
#include <sys/param.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <netdb.h>
#include <unistd.h>
#include <string.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <rpc/rpc.h>
#include <rpc/xdr.h>
#include <rpcsvc/yp_prot.h>
#include <rpcsvc/ypclnt.h>
static CLIENT *mkclient(struct sockaddr_in *, unsigned long, unsigned long,
int);
static int get_remote_info(const char *, const char *, const char *, int *,
char **, int);
static void usage(void) __attribute__((__noreturn__));
int
main(int argc, char *argv[])
{
char *domainname;
char *hostname = NULL;
char *inmap, *master;
int order;
int c, r, tcp = 0;
(void)yp_get_default_domain(&domainname);
while ((c = getopt(argc, argv, "Th:d:")) != -1) {
switch (c) {
case 'T':
tcp = 1;
break;
case 'd':
domainname = optarg;
break;
case 'h':
hostname = optarg;
break;
default:
usage();
/*NOTREACHED*/
}
}
if (domainname == NULL)
errx(1, "YP domain name not set");
argc -= optind;
argv += optind;
if (argc != 1)
usage();
inmap = argv[0];
if (hostname != NULL)
r = get_remote_info(domainname, inmap, hostname,
&order, &master, tcp);
else {
r = yp_order(domainname, inmap, &order);
if (r == 0)
r = yp_master(domainname, inmap, &master);
}
if (r != 0)
errx(1, "no such map %s. Reason: %s",
inmap, yperr_string(r));
(void)printf("Map %s has order number %d. %s", inmap, order,
ctime((void *)&order));
(void)printf("The master server is %s.\n", master);
return 0;
}
static CLIENT *
mkclient(struct sockaddr_in *sin, unsigned long prog, unsigned long vers,
int tcp)
{
static struct timeval tv = { 10, 0 };
int fd = RPC_ANYSOCK;
if (tcp)
return clnttcp_create(sin, prog, vers, &fd, 0, 0);
else
return clntudp_create(sin, prog, vers, tv, &fd);
}
static int
get_remote_info(const char *indomain, const char *inmap, const char *server,
int *outorder, char **outname, int tcp)
{
struct ypresp_order ypro;
struct ypresp_master yprm;
struct ypreq_nokey yprnk;
struct timeval tv;
int r;
struct sockaddr_in rsrv_sin;
CLIENT *client;
struct hostent *h;
(void)memset(&rsrv_sin, 0, sizeof(rsrv_sin));
rsrv_sin.sin_len = sizeof rsrv_sin;
rsrv_sin.sin_family = AF_INET;
h = gethostbyname(server);
if (h == NULL) {
if (inet_aton(server, &rsrv_sin.sin_addr) == 0)
errx(1, "unknown host %s", server);
} else
(void)memcpy(&rsrv_sin.sin_addr.s_addr, h->h_addr,
(size_t)h->h_length);
client = mkclient(&rsrv_sin, YPPROG, YPVERS, tcp);
if (client == NULL)
errx(1, "clnt%s_create: no contact with host %s.",
tcp ? "tcp" : "udp", server);
yprnk.domain = indomain;
yprnk.map = inmap;
(void)memset(&ypro, 0, sizeof(ypro));
tv.tv_sec = 10;
tv.tv_usec = 0;
r = clnt_call(client, (unsigned int)YPPROC_ORDER, xdr_ypreq_nokey,
&yprnk, xdr_ypresp_order, &ypro, tv);
if (r != RPC_SUCCESS)
clnt_perror(client, "yp_order: clnt_call");
*outorder = ypro.ordernum;
xdr_free(xdr_ypresp_order, (void *)&ypro);
r = ypprot_err(ypro.status);
if (r == RPC_SUCCESS) {
(void)memset(&yprm, 0, sizeof(yprm));
r = clnt_call(client, (unsigned int)YPPROC_MASTER,
xdr_ypreq_nokey, &yprnk, xdr_ypresp_master, &yprm, tv);
if (r != RPC_SUCCESS)
clnt_perror(client, "yp_master: clnt_call");
r = ypprot_err(yprm.status);
if (r == 0)
*outname = (char *)strdup(yprm.master);
xdr_free(xdr_ypresp_master, (void *)&yprm);
}
clnt_destroy(client);
return r;
}
static void
usage(void)
{
(void)fprintf(stderr,
"Usage: %s [-T] [-h host] [-d domainname] mapname\n",
getprogname());
exit(1);
}