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/* $OpenBSD: ypset.c,v 1.18 2008/07/28 16:22:11 deraadt Exp $ */
/* $NetBSD: ypset.c,v 1.8 1996/05/13 02:46:33 thorpej Exp $ */
/*
* Copyright (c) 1992, 1993 Theo de Raadt <deraadt@theos.com>
* 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.
*/
#ifndef lint
static char rcsid[] = "$OpenBSD: ypset.c,v 1.18 2008/07/28 16:22:11 deraadt Exp $";
#endif
#include <sys/param.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <netdb.h>
#include <rpc/rpc.h>
#include <rpc/xdr.h>
#include <rpcsvc/yp.h>
#include <rpcsvc/ypclnt.h>
#include <arpa/inet.h>
static void
usage(void)
{
fprintf(stderr, "usage: ypset [-d domain] [-h host] server\n");
exit(1);
}
static int
bind_tohost(struct sockaddr_in *sin, char *dom, char *server)
{
struct ypbind_setdom ypsd;
struct in_addr iaddr;
struct hostent *hp;
struct timeval tv;
CLIENT *client;
int sock, port, r;
port = getrpcport(server, YPPROG, YPPROC_NULL, IPPROTO_UDP);
if (port == 0)
errx(1, "%s not running ypserv", server);
port = htons(port);
memset(&ypsd, 0, sizeof ypsd);
if (inet_aton(server, &iaddr) == 0) {
hp = gethostbyname(server);
if (hp == NULL)
errx(1, "can't find address for %s", server);
memmove(&iaddr.s_addr, hp->h_addr, sizeof(iaddr.s_addr));
}
ypsd.ypsetdom_domain = dom;
bcopy(&iaddr.s_addr, &ypsd.ypsetdom_binding.ypbind_binding_addr,
sizeof(ypsd.ypsetdom_binding.ypbind_binding_addr));
bcopy(&port, &ypsd.ypsetdom_binding.ypbind_binding_port,
sizeof(ypsd.ypsetdom_binding.ypbind_binding_port));
ypsd.ypsetdom_vers = YPVERS;
tv.tv_sec = 15;
tv.tv_usec = 0;
sock = RPC_ANYSOCK;
client = clntudp_create(sin, YPBINDPROG, YPBINDVERS, tv, &sock);
if (client == NULL) {
warnx("can't yp_bind: reason: %s", yperr_string(YPERR_YPBIND));
return YPERR_YPBIND;
}
client->cl_auth = authunix_create_default();
r = clnt_call(client, YPBINDPROC_SETDOM,
xdr_ypbind_setdom, &ypsd, xdr_void, NULL, tv);
if (r) {
warnx("Cannot ypset for domain %s on host %s: %s", dom,
server, clnt_sperrno(r));
clnt_destroy(client);
return YPERR_YPBIND;
}
clnt_destroy(client);
return 0;
}
int
main(int argc, char *argv[])
{
struct sockaddr_in sin;
struct hostent *hent;
extern char *optarg;
extern int optind;
char *domainname;
int c;
yp_get_default_domain(&domainname);
bzero(&sin, 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':
if (inet_aton(optarg, &sin.sin_addr) == 0) {
hent = gethostbyname(optarg);
if (hent == NULL)
errx(1, "host %s unknown\n", optarg);
bcopy(hent->h_addr, &sin.sin_addr,
sizeof(sin.sin_addr));
}
break;
default:
usage();
}
if (optind + 1 != argc)
usage();
if (bind_tohost(&sin, domainname, argv[optind]))
exit(1);
exit(0);
}
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