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1a04497345
hostname rather than an IP. The code was copying the pointer to the IP address instead of the IP address itself. The bug has existed ever since ypset was first imported in 1994. PR: bin/62550 Submitted by: aardvark@saintaardvarkthecarpeted.com MFC after: 1 week
152 lines
4.2 KiB
C
152 lines
4.2 KiB
C
/*
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* Copyright (c) 1992/3 Theo de Raadt <deraadt@fsa.ca>
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* All rights reserved.
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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
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* are met:
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* 1. 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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <err.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 <sys/param.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <rpc/rpc.h>
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#include <rpc/xdr.h>
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#include <rpcsvc/yp.h>
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struct dom_binding{};
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#include <rpcsvc/ypclnt.h>
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#include <arpa/inet.h>
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extern bool_t xdr_domainname();
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static void
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usage(void)
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{
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fprintf(stderr, "usage: ypset [-h host] [-d domain] server\n");
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exit(1);
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}
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int
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bind_tohost(struct sockaddr_in *sin, char *dom, char *server)
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{
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struct ypbind_setdom ypsd;
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struct timeval tv;
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struct hostent *hp;
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CLIENT *client;
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int sock, port;
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int r;
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unsigned long server_addr;
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if ((port = htons(getrpcport(server, YPPROG, YPPROC_NULL, IPPROTO_UDP))) == 0)
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errx(1, "%s not running ypserv", server);
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bzero(&ypsd, sizeof ypsd);
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if ((hp = gethostbyname (server)) != NULL) {
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/* is this the most compatible way?? */
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bcopy (hp->h_addr_list[0],
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(u_long *)&ypsd.ypsetdom_binding.ypbind_binding_addr,
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sizeof (unsigned long));
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} else if ((long)(server_addr = inet_addr (server)) == -1) {
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errx(1, "can't find address for %s", server);
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} else
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bcopy (&server_addr,
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(u_long *)&ypsd.ypsetdom_binding.ypbind_binding_addr,
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sizeof (server_addr));
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/* strncpy(ypsd.ypsetdom_domain, dom, sizeof ypsd.ypsetdom_domain); */
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ypsd.ypsetdom_domain = dom;
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*(u_long *)&ypsd.ypsetdom_binding.ypbind_binding_port = port;
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ypsd.ypsetdom_vers = YPVERS;
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tv.tv_sec = 15;
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tv.tv_usec = 0;
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sock = RPC_ANYSOCK;
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client = clntudp_create(sin, YPBINDPROG, YPBINDVERS, tv, &sock);
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if (client == NULL) {
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warnx("can't yp_bind, reason: %s", yperr_string(YPERR_YPBIND));
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return (YPERR_YPBIND);
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}
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client->cl_auth = authunix_create_default();
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r = clnt_call(client, YPBINDPROC_SETDOM,
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(xdrproc_t)xdr_ypbind_setdom, &ypsd,
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(xdrproc_t)xdr_void, NULL, tv);
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if (r) {
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warnx("sorry, cannot ypset for domain %s on host", dom);
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clnt_destroy(client);
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return (YPERR_YPBIND);
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}
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clnt_destroy(client);
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return (0);
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}
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int
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main(int argc, char *argv[])
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{
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struct sockaddr_in sin;
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struct hostent *hent;
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char *domainname;
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int c;
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yp_get_default_domain(&domainname);
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bzero(&sin, sizeof sin);
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sin.sin_family = AF_INET;
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sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
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while ((c = getopt(argc, argv, "h:d:")) != -1)
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switch (c) {
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case 'd':
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domainname = optarg;
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break;
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case 'h':
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if ((sin.sin_addr.s_addr = inet_addr(optarg)) == -1) {
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hent = gethostbyname(optarg);
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if (hent == NULL)
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errx(1, "host %s unknown", optarg);
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bcopy(hent->h_addr_list[0], &sin.sin_addr,
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sizeof sin.sin_addr);
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}
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break;
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default:
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usage();
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}
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if (optind + 1 != argc)
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usage();
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if (bind_tohost(&sin, domainname, argv[optind]))
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exit(1);
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exit(0);
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}
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