17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 57c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 67c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 77c478bd9Sstevel@tonic-gate * with the License. 87c478bd9Sstevel@tonic-gate * 97c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 107c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 117c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 127c478bd9Sstevel@tonic-gate * and limitations under the License. 137c478bd9Sstevel@tonic-gate * 147c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 157c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 167c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 177c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 187c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 197c478bd9Sstevel@tonic-gate * 207c478bd9Sstevel@tonic-gate * CDDL HEADER END 21*61961e0fSrobinson */ 22*61961e0fSrobinson 23*61961e0fSrobinson /* 24*61961e0fSrobinson * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 257c478bd9Sstevel@tonic-gate * Use is subject to license terms. 267c478bd9Sstevel@tonic-gate */ 277c478bd9Sstevel@tonic-gate 287c478bd9Sstevel@tonic-gate /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 297c478bd9Sstevel@tonic-gate /* All Rights Reserved */ 307c478bd9Sstevel@tonic-gate 317c478bd9Sstevel@tonic-gate /* 327c478bd9Sstevel@tonic-gate * Portions of this source code were derived from Berkeley 337c478bd9Sstevel@tonic-gate * under license from the Regents of the University of 347c478bd9Sstevel@tonic-gate * California. 357c478bd9Sstevel@tonic-gate */ 367c478bd9Sstevel@tonic-gate 377c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 387c478bd9Sstevel@tonic-gate 39*61961e0fSrobinson #include <stdlib.h> 40*61961e0fSrobinson #include <unistd.h> 417c478bd9Sstevel@tonic-gate #include <rpc/rpc.h> 427c478bd9Sstevel@tonic-gate #include <sys/types.h> 437c478bd9Sstevel@tonic-gate #include "yp_b.h" 447c478bd9Sstevel@tonic-gate #include <rpcsvc/yp_prot.h> 457c478bd9Sstevel@tonic-gate #include <rpcsvc/ypclnt.h> 467c478bd9Sstevel@tonic-gate #include <string.h> 477c478bd9Sstevel@tonic-gate 487c478bd9Sstevel@tonic-gate static int domaster(char *, char *, struct dom_binding *, struct timeval, 497c478bd9Sstevel@tonic-gate char **); 50*61961e0fSrobinson extern int __yp_master_rsvdport(char *, char *, char **); 517c478bd9Sstevel@tonic-gate 527c478bd9Sstevel@tonic-gate /* 537c478bd9Sstevel@tonic-gate * This checks parameters, and implements the outer "until binding success" 547c478bd9Sstevel@tonic-gate * loop. 557c478bd9Sstevel@tonic-gate */ 567c478bd9Sstevel@tonic-gate int 57*61961e0fSrobinson yp_master(char *domain, char *map, char **master) 587c478bd9Sstevel@tonic-gate { 597c478bd9Sstevel@tonic-gate size_t domlen; 607c478bd9Sstevel@tonic-gate size_t maplen; 617c478bd9Sstevel@tonic-gate int reason; 627c478bd9Sstevel@tonic-gate struct dom_binding *pdomb; 637c478bd9Sstevel@tonic-gate 64*61961e0fSrobinson if ((map == NULL) || (domain == NULL)) 657c478bd9Sstevel@tonic-gate return (YPERR_BADARGS); 667c478bd9Sstevel@tonic-gate 677c478bd9Sstevel@tonic-gate domlen = strlen(domain); 687c478bd9Sstevel@tonic-gate maplen = strlen(map); 697c478bd9Sstevel@tonic-gate 707c478bd9Sstevel@tonic-gate if ((domlen == 0) || (domlen > YPMAXDOMAIN) || 717c478bd9Sstevel@tonic-gate (maplen == 0) || (maplen > YPMAXMAP) || 72*61961e0fSrobinson (master == NULL)) 737c478bd9Sstevel@tonic-gate return (YPERR_BADARGS); 747c478bd9Sstevel@tonic-gate 757c478bd9Sstevel@tonic-gate for (;;) { 767c478bd9Sstevel@tonic-gate 77*61961e0fSrobinson if (reason = __yp_dobind(domain, &pdomb)) 787c478bd9Sstevel@tonic-gate return (reason); 797c478bd9Sstevel@tonic-gate 807c478bd9Sstevel@tonic-gate if (pdomb->dom_binding->ypbind_hi_vers >= YPVERS) { 817c478bd9Sstevel@tonic-gate 827c478bd9Sstevel@tonic-gate reason = domaster(domain, map, pdomb, _ypserv_timeout, 837c478bd9Sstevel@tonic-gate master); 847c478bd9Sstevel@tonic-gate 857c478bd9Sstevel@tonic-gate __yp_rel_binding(pdomb); 867c478bd9Sstevel@tonic-gate if (reason == YPERR_RPC) { 877c478bd9Sstevel@tonic-gate yp_unbind(domain); 887c478bd9Sstevel@tonic-gate (void) _sleep(_ypsleeptime); 897c478bd9Sstevel@tonic-gate } else { 907c478bd9Sstevel@tonic-gate break; 917c478bd9Sstevel@tonic-gate } 927c478bd9Sstevel@tonic-gate } else { 937c478bd9Sstevel@tonic-gate __yp_rel_binding(pdomb); 947c478bd9Sstevel@tonic-gate return (YPERR_VERS); 957c478bd9Sstevel@tonic-gate } 967c478bd9Sstevel@tonic-gate } 977c478bd9Sstevel@tonic-gate 987c478bd9Sstevel@tonic-gate if (reason == YPERR_MAP && geteuid() == 0) { 997c478bd9Sstevel@tonic-gate /* 1007c478bd9Sstevel@tonic-gate * Lookup could be for a secure map; fail over to retry 1017c478bd9Sstevel@tonic-gate * from a reserved port. Only useful to try this if we're 1027c478bd9Sstevel@tonic-gate * the super user. 1037c478bd9Sstevel@tonic-gate */ 1047c478bd9Sstevel@tonic-gate int rsvdreason; 1057c478bd9Sstevel@tonic-gate rsvdreason = __yp_master_rsvdport(domain, map, master); 1067c478bd9Sstevel@tonic-gate if (rsvdreason == 0) 1077c478bd9Sstevel@tonic-gate reason = rsvdreason; 1087c478bd9Sstevel@tonic-gate } 1097c478bd9Sstevel@tonic-gate 1107c478bd9Sstevel@tonic-gate return (reason); 1117c478bd9Sstevel@tonic-gate } 1127c478bd9Sstevel@tonic-gate 1137c478bd9Sstevel@tonic-gate 1147c478bd9Sstevel@tonic-gate /* 1157c478bd9Sstevel@tonic-gate * This function is identical to 'yp_master' with the exception that it calls 1167c478bd9Sstevel@tonic-gate * '__yp_dobind_rsvdport' rather than '__yp_dobind' 1177c478bd9Sstevel@tonic-gate */ 1187c478bd9Sstevel@tonic-gate int 119*61961e0fSrobinson __yp_master_rsvdport(char *domain, char *map, char **master) 1207c478bd9Sstevel@tonic-gate { 1217c478bd9Sstevel@tonic-gate size_t domlen; 1227c478bd9Sstevel@tonic-gate size_t maplen; 1237c478bd9Sstevel@tonic-gate int reason; 1247c478bd9Sstevel@tonic-gate struct dom_binding *pdomb; 1257c478bd9Sstevel@tonic-gate 126*61961e0fSrobinson if ((map == NULL) || (domain == NULL)) 1277c478bd9Sstevel@tonic-gate return (YPERR_BADARGS); 1287c478bd9Sstevel@tonic-gate 1297c478bd9Sstevel@tonic-gate domlen = strlen(domain); 1307c478bd9Sstevel@tonic-gate maplen = strlen(map); 1317c478bd9Sstevel@tonic-gate 1327c478bd9Sstevel@tonic-gate if ((domlen == 0) || (domlen > YPMAXDOMAIN) || 1337c478bd9Sstevel@tonic-gate (maplen == 0) || (maplen > YPMAXMAP) || 134*61961e0fSrobinson (master == NULL)) 1357c478bd9Sstevel@tonic-gate return (YPERR_BADARGS); 1367c478bd9Sstevel@tonic-gate 1377c478bd9Sstevel@tonic-gate for (;;) { 1387c478bd9Sstevel@tonic-gate 139*61961e0fSrobinson if (reason = __yp_dobind_rsvdport(domain, &pdomb)) 1407c478bd9Sstevel@tonic-gate return (reason); 1417c478bd9Sstevel@tonic-gate 1427c478bd9Sstevel@tonic-gate if (pdomb->dom_binding->ypbind_hi_vers >= YPVERS) { 1437c478bd9Sstevel@tonic-gate 1447c478bd9Sstevel@tonic-gate reason = domaster(domain, map, pdomb, _ypserv_timeout, 1457c478bd9Sstevel@tonic-gate master); 1467c478bd9Sstevel@tonic-gate 1477c478bd9Sstevel@tonic-gate /* 1487c478bd9Sstevel@tonic-gate * Have to free the binding since the reserved 1497c478bd9Sstevel@tonic-gate * port bindings are not cached. 1507c478bd9Sstevel@tonic-gate */ 1517c478bd9Sstevel@tonic-gate __yp_rel_binding(pdomb); 1527c478bd9Sstevel@tonic-gate free_dom_binding(pdomb); 1537c478bd9Sstevel@tonic-gate if (reason == YPERR_RPC) { 1547c478bd9Sstevel@tonic-gate yp_unbind(domain); 1557c478bd9Sstevel@tonic-gate (void) _sleep(_ypsleeptime); 1567c478bd9Sstevel@tonic-gate } else { 1577c478bd9Sstevel@tonic-gate break; 1587c478bd9Sstevel@tonic-gate } 1597c478bd9Sstevel@tonic-gate } else { 1607c478bd9Sstevel@tonic-gate /* 1617c478bd9Sstevel@tonic-gate * Have to free the binding since the reserved 1627c478bd9Sstevel@tonic-gate * port bindings are not cached. 1637c478bd9Sstevel@tonic-gate */ 1647c478bd9Sstevel@tonic-gate __yp_rel_binding(pdomb); 1657c478bd9Sstevel@tonic-gate free_dom_binding(pdomb); 1667c478bd9Sstevel@tonic-gate return (YPERR_VERS); 1677c478bd9Sstevel@tonic-gate } 1687c478bd9Sstevel@tonic-gate } 1697c478bd9Sstevel@tonic-gate return (reason); 1707c478bd9Sstevel@tonic-gate } 1717c478bd9Sstevel@tonic-gate 1727c478bd9Sstevel@tonic-gate /* 1737c478bd9Sstevel@tonic-gate * This talks v2 to ypserv 1747c478bd9Sstevel@tonic-gate */ 1757c478bd9Sstevel@tonic-gate static int 176*61961e0fSrobinson domaster(char *domain, char *map, struct dom_binding *pdomb, 177*61961e0fSrobinson struct timeval timeout, char **master) 1787c478bd9Sstevel@tonic-gate { 1797c478bd9Sstevel@tonic-gate struct ypreq_nokey req; 1807c478bd9Sstevel@tonic-gate struct ypresp_master resp; 1817c478bd9Sstevel@tonic-gate unsigned int retval = 0; 1827c478bd9Sstevel@tonic-gate 1837c478bd9Sstevel@tonic-gate req.domain = domain; 1847c478bd9Sstevel@tonic-gate req.map = map; 185*61961e0fSrobinson (void) memset(&resp, 0, sizeof (struct ypresp_master)); 1867c478bd9Sstevel@tonic-gate 1877c478bd9Sstevel@tonic-gate /* 1887c478bd9Sstevel@tonic-gate * Do the get_master request. If the rpc call failed, return with 1897c478bd9Sstevel@tonic-gate * status from this point. 1907c478bd9Sstevel@tonic-gate */ 1917c478bd9Sstevel@tonic-gate 1927c478bd9Sstevel@tonic-gate if (clnt_call(pdomb->dom_client, 1937c478bd9Sstevel@tonic-gate YPPROC_MASTER, (xdrproc_t)xdr_ypreq_nokey, 1947c478bd9Sstevel@tonic-gate (char *)&req, (xdrproc_t)xdr_ypresp_master, (char *)&resp, 195*61961e0fSrobinson timeout) != RPC_SUCCESS) 1967c478bd9Sstevel@tonic-gate return (YPERR_RPC); 1977c478bd9Sstevel@tonic-gate 1987c478bd9Sstevel@tonic-gate /* See if the request succeeded */ 1997c478bd9Sstevel@tonic-gate 200*61961e0fSrobinson if (resp.status != YP_TRUE) 2017c478bd9Sstevel@tonic-gate retval = ypprot_err(resp.status); 2027c478bd9Sstevel@tonic-gate 2037c478bd9Sstevel@tonic-gate /* Get some memory which the user can get rid of as he likes */ 2047c478bd9Sstevel@tonic-gate 205*61961e0fSrobinson if (!retval && ((*master = malloc(strlen(resp.master) + 1)) == NULL)) 2067c478bd9Sstevel@tonic-gate retval = YPERR_RESRC; 2077c478bd9Sstevel@tonic-gate 208*61961e0fSrobinson if (!retval) 2097c478bd9Sstevel@tonic-gate (void) strcpy(*master, resp.master); 2107c478bd9Sstevel@tonic-gate 2117c478bd9Sstevel@tonic-gate CLNT_FREERES(pdomb->dom_client, 2127c478bd9Sstevel@tonic-gate (xdrproc_t)xdr_ypresp_master, (char *)&resp); 2137c478bd9Sstevel@tonic-gate return (retval); 2147c478bd9Sstevel@tonic-gate } 215