/* $NetBSD: yppoll.c,v 1.15 2011/08/30 17:06:22 plunky Exp $ */ /* * Copyright (c) 1992, 1993 Theo de Raadt * 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. */ /* * 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 #ifndef lint __RCSID("$NetBSD: yppoll.c,v 1.15 2011/08/30 17:06:22 plunky Exp $"); #endif /* not lint */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include static CLIENT *mkclient(struct sockaddr_in *, unsigned long, unsigned long, int); static int get_remote_info(const char *, const char *, const char *, int *, char **, int); static void usage(void) __attribute__((__noreturn__)); int main(int argc, char *argv[]) { char *domainname; char *hostname = NULL; char *inmap, *master; int order; int c, r, tcp = 0; (void)yp_get_default_domain(&domainname); while ((c = getopt(argc, argv, "Th:d:")) != -1) { switch (c) { case 'T': tcp = 1; break; case 'd': domainname = optarg; break; case 'h': hostname = optarg; break; default: usage(); /*NOTREACHED*/ } } if (domainname == NULL) errx(1, "YP domain name not set"); argc -= optind; argv += optind; if (argc != 1) usage(); inmap = argv[0]; if (hostname != NULL) r = get_remote_info(domainname, inmap, hostname, &order, &master, tcp); 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)); (void)printf("Map %s has order number %d. %s", inmap, order, ctime((void *)&order)); (void)printf("The master server is %s.\n", master); return 0; } static CLIENT * mkclient(struct sockaddr_in *sin, unsigned long prog, unsigned long vers, int tcp) { static struct timeval tv = { 10, 0 }; int fd = RPC_ANYSOCK; if (tcp) return clnttcp_create(sin, prog, vers, &fd, 0, 0); else return clntudp_create(sin, prog, vers, tv, &fd); } static int get_remote_info(const char *indomain, const char *inmap, const char *server, int *outorder, char **outname, int tcp) { struct ypresp_order ypro; struct ypresp_master yprm; struct ypreq_nokey yprnk; struct timeval tv; int r; struct sockaddr_in rsrv_sin; CLIENT *client; struct hostent *h; (void)memset(&rsrv_sin, 0, sizeof(rsrv_sin)); rsrv_sin.sin_len = sizeof rsrv_sin; rsrv_sin.sin_family = AF_INET; h = gethostbyname(server); if (h == NULL) { if (inet_aton(server, &rsrv_sin.sin_addr) == 0) errx(1, "unknown host %s", server); } else (void)memcpy(&rsrv_sin.sin_addr.s_addr, h->h_addr, (size_t)h->h_length); client = mkclient(&rsrv_sin, YPPROG, YPVERS, tcp); if (client == NULL) errx(1, "clnt%s_create: no contact with host %s.", tcp ? "tcp" : "udp", server); yprnk.domain = indomain; yprnk.map = inmap; (void)memset(&ypro, 0, sizeof(ypro)); tv.tv_sec = 10; tv.tv_usec = 0; r = clnt_call(client, (unsigned int)YPPROC_ORDER, xdr_ypreq_nokey, &yprnk, 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, (void *)&ypro); r = ypprot_err(ypro.status); if (r == RPC_SUCCESS) { (void)memset(&yprm, 0, sizeof(yprm)); r = clnt_call(client, (unsigned int)YPPROC_MASTER, xdr_ypreq_nokey, &yprnk, 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, (void *)&yprm); } clnt_destroy(client); return r; } static void usage(void) { (void)fprintf(stderr, "Usage: %s [-T] [-h host] [-d domainname] mapname\n", getprogname()); exit(1); }