NetBSD/usr.sbin/ypset/ypset.c

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/* $NetBSD: ypset.c,v 1.17 2011/08/27 22:41:35 joerg Exp $ */
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/*
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* 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.
*/
#include <sys/cdefs.h>
#ifndef lint
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__RCSID("$NetBSD: ypset.c,v 1.17 2011/08/27 22:41:35 joerg Exp $");
#endif
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#include <sys/param.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <stdio.h>
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#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <err.h>
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#include <netdb.h>
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#include <rpc/rpc.h>
#include <rpc/xdr.h>
#include <rpcsvc/yp_prot.h>
#include <rpcsvc/ypclnt.h>
#include <arpa/inet.h>
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__dead static void usage(void);
static void gethostaddr(const char *, struct in_addr *);
static int bind_tohost(struct sockaddr_in *, char *, char *);
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int
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main(int argc, char *argv[])
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{
struct sockaddr_in sin;
char *domainname;
int c;
yp_get_default_domain(&domainname);
(void) memset(&sin, 0, sizeof sin);
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
while ((c = getopt(argc, argv, "h:d:")) != -1) {
switch(c) {
case 'd':
domainname = optarg;
break;
case 'h':
gethostaddr(optarg, &sin.sin_addr);
break;
default:
usage();
}
}
if (domainname == NULL)
errx(1, "YP domain name not set");
argc -= optind;
argv += optind;
if (argc != 1)
usage();
return bind_tohost(&sin, domainname, argv[0]) != 0;
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}
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static void
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gethostaddr(const char *host, struct in_addr *ia)
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{
struct hostent *hp;
if (inet_aton(host, ia) != 0)
return;
hp = gethostbyname(host);
if (hp == NULL)
errx(1, "Cannot get host address for %s: %s", host,
hstrerror(h_errno));
(void) memcpy(ia, hp->h_addr, sizeof(*ia));
}
static int
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bind_tohost(struct sockaddr_in *sin, char *dom, char *server)
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{
struct ypbind_setdom ypsd;
struct timeval tv;
CLIENT *client;
int sock, port;
int r;
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port = htons(getrpcport(server, YPPROG, YPPROC_NULL, IPPROTO_UDP));
if (port == 0)
errx(1, "%s not running ypserv.", server);
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(void) memset(&ypsd, 0, sizeof ypsd);
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gethostaddr(server, &ypsd.ypsetdom_addr);
(void) strlcpy(ypsd.ypsetdom_domain, dom, sizeof ypsd.ypsetdom_domain);
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ypsd.ypsetdom_port = port;
ypsd.ypsetdom_vers = YPVERS;
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tv.tv_sec = 15;
tv.tv_usec = 0;
sock = RPC_ANYSOCK;
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client = clntudp_create(sin, YPBINDPROG, YPBINDVERS, tv, &sock);
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if (client == NULL) {
warnx("Can't yp_bind: Reason: %s", yperr_string(YPERR_YPBIND));
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return YPERR_YPBIND;
}
client->cl_auth = authunix_create_default();
r = clnt_call(client, YPBINDPROC_SETDOM,
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xdr_ypbind_setdom, &ypsd, xdr_void, NULL, tv);
if (r) {
warnx("Cannot ypset for domain %s on host %s: %s.",
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dom, server, clnt_sperrno(r));
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clnt_destroy(client);
return YPERR_YPBIND;
}
clnt_destroy(client);
return 0;
}
static void
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usage(void)
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{
(void) fprintf(stderr, "usage: %s [-h host ] [-d domain] server\n",
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getprogname());
exit(1);
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}