1*3cd9f110Splunky /* $NetBSD: yppoll.c,v 1.15 2011/08/30 17:06:22 plunky Exp $ */
2b2fd6338Sthorpej
3a4dd8f97Sbrezak /*
4b86d2fa0Sderaadt * Copyright (c) 1992, 1993 Theo de Raadt <deraadt@fsa.ca>
57db1d33cSagc * All rights reserved.
67db1d33cSagc *
77db1d33cSagc * Redistribution and use in source and binary forms, with or without
87db1d33cSagc * modification, are permitted provided that the following conditions
97db1d33cSagc * are met:
107db1d33cSagc * 1. Redistributions of source code must retain the above copyright
117db1d33cSagc * notice, this list of conditions and the following disclaimer.
127db1d33cSagc * 2. Redistributions in binary form must reproduce the above copyright
137db1d33cSagc * notice, this list of conditions and the following disclaimer in the
147db1d33cSagc * documentation and/or other materials provided with the distribution.
157db1d33cSagc *
167db1d33cSagc * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
177db1d33cSagc * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
187db1d33cSagc * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
197db1d33cSagc * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
207db1d33cSagc * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
217db1d33cSagc * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
227db1d33cSagc * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
237db1d33cSagc * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
247db1d33cSagc * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
257db1d33cSagc * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
267db1d33cSagc * SUCH DAMAGE.
277db1d33cSagc */
287db1d33cSagc
297db1d33cSagc /*
30b86d2fa0Sderaadt * Copyright (c) 1992, 1993 John Brezak
31a4dd8f97Sbrezak * All rights reserved.
32a4dd8f97Sbrezak *
33a4dd8f97Sbrezak * Redistribution and use in source and binary forms, with or without
34a4dd8f97Sbrezak * modification, are permitted provided that the following conditions
35a4dd8f97Sbrezak * are met:
36a4dd8f97Sbrezak * 1. Redistributions of source code must retain the above copyright
37a4dd8f97Sbrezak * notice, this list of conditions and the following disclaimer.
38a4dd8f97Sbrezak * 2. Redistributions in binary form must reproduce the above copyright
39a4dd8f97Sbrezak * notice, this list of conditions and the following disclaimer in the
40a4dd8f97Sbrezak * documentation and/or other materials provided with the distribution.
41662f5a1dSjdolecek * 3. The name of the author may not be used to endorse or promote
42a4dd8f97Sbrezak * products derived from this software without specific prior written
43a4dd8f97Sbrezak * permission.
44a4dd8f97Sbrezak *
45a4dd8f97Sbrezak * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
46a4dd8f97Sbrezak * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
47a4dd8f97Sbrezak * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
48a4dd8f97Sbrezak * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
49a4dd8f97Sbrezak * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
50a4dd8f97Sbrezak * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
51a4dd8f97Sbrezak * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
52a4dd8f97Sbrezak * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
53a4dd8f97Sbrezak * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
54a4dd8f97Sbrezak * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
55a4dd8f97Sbrezak * SUCH DAMAGE.
56a4dd8f97Sbrezak */
57a4dd8f97Sbrezak
58587f1445Sthorpej #include <sys/cdefs.h>
59aee4b07bSmycroft #ifndef lint
60*3cd9f110Splunky __RCSID("$NetBSD: yppoll.c,v 1.15 2011/08/30 17:06:22 plunky Exp $");
61aee4b07bSmycroft #endif /* not lint */
62a4dd8f97Sbrezak
63a4dd8f97Sbrezak #include <sys/param.h>
64a4dd8f97Sbrezak #include <sys/types.h>
65a4dd8f97Sbrezak #include <sys/socket.h>
66587f1445Sthorpej #include <err.h>
67a4dd8f97Sbrezak #include <stdio.h>
683ab02a87Smatt #include <stdlib.h>
69a4dd8f97Sbrezak #include <time.h>
70f452d538Sderaadt #include <netdb.h>
71f452d538Sderaadt #include <unistd.h>
72f452d538Sderaadt #include <string.h>
73f452d538Sderaadt #include <netinet/in.h>
74f452d538Sderaadt #include <arpa/inet.h>
75a4dd8f97Sbrezak
76a4dd8f97Sbrezak #include <rpc/rpc.h>
77a4dd8f97Sbrezak #include <rpc/xdr.h>
78a4dd8f97Sbrezak #include <rpcsvc/yp_prot.h>
79a4dd8f97Sbrezak #include <rpcsvc/ypclnt.h>
80a4dd8f97Sbrezak
8106668553Schristos static CLIENT *mkclient(struct sockaddr_in *, unsigned long, unsigned long,
8206668553Schristos int);
8306668553Schristos static int get_remote_info(const char *, const char *, const char *, int *,
8406668553Schristos char **, int);
8506668553Schristos static void usage(void) __attribute__((__noreturn__));
86587f1445Sthorpej
87587f1445Sthorpej int
main(int argc,char * argv[])8806668553Schristos main(int argc, char *argv[])
89a4dd8f97Sbrezak {
90587f1445Sthorpej char *domainname;
91587f1445Sthorpej char *hostname = NULL;
92587f1445Sthorpej char *inmap, *master;
93587f1445Sthorpej int order;
9406668553Schristos int c, r, tcp = 0;
95587f1445Sthorpej
9606668553Schristos (void)yp_get_default_domain(&domainname);
97587f1445Sthorpej
9806668553Schristos while ((c = getopt(argc, argv, "Th:d:")) != -1) {
99587f1445Sthorpej switch (c) {
10006668553Schristos case 'T':
10106668553Schristos tcp = 1;
10206668553Schristos break;
103587f1445Sthorpej case 'd':
104587f1445Sthorpej domainname = optarg;
105587f1445Sthorpej break;
106587f1445Sthorpej
107587f1445Sthorpej case 'h':
108587f1445Sthorpej hostname = optarg;
109587f1445Sthorpej break;
110587f1445Sthorpej
111587f1445Sthorpej default:
112587f1445Sthorpej usage();
113587f1445Sthorpej /*NOTREACHED*/
114587f1445Sthorpej }
115587f1445Sthorpej }
116587f1445Sthorpej
117587f1445Sthorpej if (domainname == NULL)
118587f1445Sthorpej errx(1, "YP domain name not set");
119587f1445Sthorpej
120587f1445Sthorpej argc -= optind;
121587f1445Sthorpej argv += optind;
122587f1445Sthorpej
123587f1445Sthorpej if (argc != 1)
124587f1445Sthorpej usage();
125587f1445Sthorpej
126587f1445Sthorpej inmap = argv[0];
127587f1445Sthorpej
128587f1445Sthorpej if (hostname != NULL)
129587f1445Sthorpej r = get_remote_info(domainname, inmap, hostname,
13006668553Schristos &order, &master, tcp);
131587f1445Sthorpej else {
132587f1445Sthorpej r = yp_order(domainname, inmap, &order);
133587f1445Sthorpej if (r == 0)
134587f1445Sthorpej r = yp_master(domainname, inmap, &master);
135587f1445Sthorpej }
136587f1445Sthorpej
137587f1445Sthorpej if (r != 0)
138eda9e509Sgrant errx(1, "no such map %s. Reason: %s",
139587f1445Sthorpej inmap, yperr_string(r));
140587f1445Sthorpej
14106668553Schristos (void)printf("Map %s has order number %d. %s", inmap, order,
142f33f7a14Sthorpej ctime((void *)&order));
14306668553Schristos (void)printf("The master server is %s.\n", master);
14406668553Schristos return 0;
145a4dd8f97Sbrezak }
146a4dd8f97Sbrezak
14706668553Schristos static CLIENT *
mkclient(struct sockaddr_in * sin,unsigned long prog,unsigned long vers,int tcp)14806668553Schristos mkclient(struct sockaddr_in *sin, unsigned long prog, unsigned long vers,
14906668553Schristos int tcp)
15006668553Schristos {
15106668553Schristos static struct timeval tv = { 10, 0 };
15206668553Schristos int fd = RPC_ANYSOCK;
15306668553Schristos
15406668553Schristos if (tcp)
15506668553Schristos return clnttcp_create(sin, prog, vers, &fd, 0, 0);
15606668553Schristos else
15706668553Schristos return clntudp_create(sin, prog, vers, tv, &fd);
15806668553Schristos }
15906668553Schristos
16006668553Schristos static int
get_remote_info(const char * indomain,const char * inmap,const char * server,int * outorder,char ** outname,int tcp)16106668553Schristos get_remote_info(const char *indomain, const char *inmap, const char *server,
16206668553Schristos int *outorder, char **outname, int tcp)
163f452d538Sderaadt {
164f452d538Sderaadt struct ypresp_order ypro;
165f452d538Sderaadt struct ypresp_master yprm;
166f452d538Sderaadt struct ypreq_nokey yprnk;
167f452d538Sderaadt struct timeval tv;
168f452d538Sderaadt int r;
169f452d538Sderaadt struct sockaddr_in rsrv_sin;
170f452d538Sderaadt CLIENT *client;
171f452d538Sderaadt struct hostent *h;
172f452d538Sderaadt
17306668553Schristos (void)memset(&rsrv_sin, 0, sizeof(rsrv_sin));
174f452d538Sderaadt rsrv_sin.sin_len = sizeof rsrv_sin;
175f452d538Sderaadt rsrv_sin.sin_family = AF_INET;
176f452d538Sderaadt
177f452d538Sderaadt h = gethostbyname(server);
178f452d538Sderaadt if (h == NULL) {
179587f1445Sthorpej if (inet_aton(server, &rsrv_sin.sin_addr) == 0)
180587f1445Sthorpej errx(1, "unknown host %s", server);
181587f1445Sthorpej } else
18206668553Schristos (void)memcpy(&rsrv_sin.sin_addr.s_addr, h->h_addr,
18306668553Schristos (size_t)h->h_length);
184f452d538Sderaadt
18506668553Schristos client = mkclient(&rsrv_sin, YPPROG, YPVERS, tcp);
186587f1445Sthorpej if (client == NULL)
18706668553Schristos errx(1, "clnt%s_create: no contact with host %s.",
18806668553Schristos tcp ? "tcp" : "udp", server);
189f452d538Sderaadt
190f452d538Sderaadt yprnk.domain = indomain;
191f452d538Sderaadt yprnk.map = inmap;
192f452d538Sderaadt
19306668553Schristos (void)memset(&ypro, 0, sizeof(ypro));
194f452d538Sderaadt
19506668553Schristos tv.tv_sec = 10;
19606668553Schristos tv.tv_usec = 0;
19706668553Schristos
19806668553Schristos r = clnt_call(client, (unsigned int)YPPROC_ORDER, xdr_ypreq_nokey,
19906668553Schristos &yprnk, xdr_ypresp_order, &ypro, tv);
200f452d538Sderaadt if (r != RPC_SUCCESS)
201f452d538Sderaadt clnt_perror(client, "yp_order: clnt_call");
202f452d538Sderaadt
203f452d538Sderaadt *outorder = ypro.ordernum;
204*3cd9f110Splunky xdr_free((xdrproc_t)xdr_ypresp_order, (void *)&ypro);
205f452d538Sderaadt
206f452d538Sderaadt r = ypprot_err(ypro.status);
207f452d538Sderaadt if (r == RPC_SUCCESS) {
20806668553Schristos (void)memset(&yprm, 0, sizeof(yprm));
209f452d538Sderaadt
21006668553Schristos r = clnt_call(client, (unsigned int)YPPROC_MASTER,
21106668553Schristos xdr_ypreq_nokey, &yprnk, xdr_ypresp_master, &yprm, tv);
212f452d538Sderaadt if (r != RPC_SUCCESS)
213f452d538Sderaadt clnt_perror(client, "yp_master: clnt_call");
214f452d538Sderaadt r = ypprot_err(yprm.status);
215f452d538Sderaadt if (r == 0)
216f452d538Sderaadt *outname = (char *)strdup(yprm.master);
217*3cd9f110Splunky xdr_free((xdrproc_t)xdr_ypresp_master, (void *)&yprm);
218f452d538Sderaadt }
219f452d538Sderaadt clnt_destroy(client);
220f452d538Sderaadt return r;
221f452d538Sderaadt }
222f452d538Sderaadt
22306668553Schristos static void
usage(void)22406668553Schristos usage(void)
225a4dd8f97Sbrezak {
226a4dd8f97Sbrezak
22706668553Schristos (void)fprintf(stderr,
22806668553Schristos "Usage: %s [-T] [-h host] [-d domainname] mapname\n",
22925bdbb66Scgd getprogname());
230a4dd8f97Sbrezak exit(1);
231a4dd8f97Sbrezak }
232