/* $OpenBSD: yppoll.c,v 1.15 2015/01/16 06:40:22 deraadt Exp $ */ /* $NetBSD: yppoll.c,v 1.5 1996/05/13 02:46:36 thorpej Exp $ */ /*- * SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 1992, 1993 Theo de Raadt * 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. 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include static void usage(void) { fprintf(stderr, "usage: yppoll [-d domain] [-h host] mapname\n"); exit(1); } static int get_remote_info(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; struct sockaddr_in rsrv_sin; int rsrv_sock; CLIENT *client; struct hostent *h; int r; bzero((char *)&rsrv_sin, 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 rsrv_sin.sin_addr.s_addr = *(u_int32_t *)h->h_addr; 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; bzero((char *)(char *)&ypro, sizeof ypro); r = clnt_call(client, YPPROC_ORDER, (xdrproc_t)xdr_ypreq_nokey, &yprnk, (xdrproc_t)xdr_ypresp_order, &ypro, tv); if (r != RPC_SUCCESS) clnt_perror(client, "yp_order: clnt_call"); *outorder = ypro.ordernum; xdr_free((xdrproc_t)xdr_ypresp_order, (char *)&ypro); r = ypprot_err(ypro.status); if (r == RPC_SUCCESS) { bzero((char *)&yprm, sizeof yprm); r = clnt_call(client, YPPROC_MASTER, (xdrproc_t)xdr_ypreq_nokey, &yprnk, (xdrproc_t)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((xdrproc_t)xdr_ypresp_master, (char *)&yprm); } clnt_destroy(client); return (r); } int main(int argc, char *argv[]) { char *domainname, *hostname = NULL, *inmap, *master; int order, c, r; time_t torder; 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 (optind + 1 != argc) usage(); inmap = argv[optind]; 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)); torder = order; printf("Map %s has order number %lld. %s", inmap, (long long)order, ctime(&torder)); printf("The master server is %s.\n", master); exit(0); }