NetBSD/usr.sbin/yppoll/yppoll.c

198 lines
5.0 KiB
C

/* $NetBSD: yppoll.c,v 1.11 2002/12/06 15:24:08 thorpej Exp $ */
/*
* Copyright (c) 1992, 1993 Theo de Raadt <deraadt@fsa.ca>
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Theo de Raadt and
* John Brezak.
* 4. 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 1.11 2002/12/06 15:24:08 thorpej 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>
int main __P((int, char *[]));
int get_remote_info __P((char *, char *, char *, int *, char **));
void usage __P((void));
int
main(argc, argv)
int argc;
char **argv;
{
char *domainname;
char *hostname = NULL;
char *inmap, *master;
int order;
int c, r;
yp_get_default_domain(&domainname);
while ((c = getopt(argc, argv, "h:d:")) != -1) {
switch (c) {
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);
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));
printf("Map %s has order number %d. %s", inmap, order,
ctime((void *)&order));
printf("The master server is %s.\n", master);
exit(0);
}
int
get_remote_info(indomain, inmap, server, outorder, outname)
char *indomain;
char *inmap;
char *server;
int *outorder;
char **outname;
{
struct ypresp_order ypro;
struct ypresp_master yprm;
struct ypreq_nokey yprnk;
struct timeval tv;
int r;
struct sockaddr_in rsrv_sin;
int rsrv_sock;
CLIENT *client;
struct hostent *h;
memset(&rsrv_sin, 0, sizeof(rsrv_sin));
rsrv_sin.sin_len = sizeof rsrv_sin;
rsrv_sin.sin_family = AF_INET;
rsrv_sock = RPC_ANYSOCK;
h = gethostbyname(server);
if (h == NULL) {
if (inet_aton(server, &rsrv_sin.sin_addr) == 0)
errx(1, "unknown host %s", server);
} else
memcpy(&rsrv_sin.sin_addr.s_addr, h->h_addr, h->h_length);
tv.tv_sec = 10;
tv.tv_usec = 0;
client = clntudp_create(&rsrv_sin, YPPROG, YPVERS, tv, &rsrv_sock);
if (client == NULL)
errx(1, "clntudp_create: no contact with host %s.", server);
yprnk.domain = indomain;
yprnk.map = inmap;
memset(&ypro, 0, sizeof(ypro));
r = clnt_call(client, 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, (char *)&ypro);
r = ypprot_err(ypro.status);
if (r == RPC_SUCCESS) {
memset(&yprm, 0, sizeof(yprm));
r = clnt_call(client, 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, (char *)&yprm);
}
clnt_destroy(client);
return r;
}
void
usage()
{
fprintf(stderr, "usage: %s [-h host] [-d domainname] mapname\n",
getprogname());
exit(1);
}