1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 23 /* 24 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 25 * Use is subject to license terms. 26 */ 27 28 #pragma ident "%Z%%M% %I% %E% SMI" 29 30 #include <sys/types.h> 31 #include <string.h> 32 #include <stdio.h> 33 #include <netconfig.h> 34 #include <netdir.h> 35 #include <rpc/rpc.h> 36 37 static CLIENT * 38 __yp_clnt_create_rsvdport_netid_req(const char *hostname, rpcprog_t prog, 39 rpcvers_t vers, const char *nettype, 40 const uint_t sendsz, const uint_t recvsz) 41 { 42 struct netconfig *nconf; 43 struct netbuf *svcaddr; 44 struct t_bind *tbind; 45 CLIENT *clnt = NULL; 46 int fd; 47 const char *nt; 48 49 if (nettype == NULL) 50 return (0); 51 else 52 nt = nettype; 53 54 if (strcmp(nt, "udp") && strcmp(nt, "tcp") && 55 strcmp(nt, "udp6") && strcmp(nt, "tcp6")) 56 return (clnt_create(hostname, prog, vers, nt)); 57 58 if ((nconf = getnetconfigent((void *) nt)) == NULL) 59 return (NULL); 60 61 if ((fd = t_open(nconf->nc_device, O_RDWR, NULL)) == -1) { 62 freenetconfigent(nconf); 63 return (NULL); 64 } 65 66 /* Attempt to set reserved port, but we don't care if it fails */ 67 (void) netdir_options(nconf, ND_SET_RESERVEDPORT, fd, NULL); 68 69 /* LINTED pointer cast */ 70 if ((tbind = (struct t_bind *)t_alloc(fd, T_BIND, T_ADDR)) == NULL) { 71 freenetconfigent(nconf); 72 return (NULL); 73 } 74 75 svcaddr = &(tbind->addr); 76 77 if (!rpcb_getaddr(prog, vers, nconf, svcaddr, hostname)) { 78 (void) t_close(fd); 79 (void) t_free((char *)tbind, T_BIND); 80 freenetconfigent(nconf); 81 return (NULL); 82 } 83 84 if ((clnt = clnt_tli_create(fd, nconf, svcaddr, 85 prog, vers, sendsz, recvsz)) == NULL) { 86 (void) t_close(fd); 87 (void) t_free((char *)tbind, T_BIND); 88 } else { 89 (void) t_free((char *)tbind, T_BIND); 90 clnt_control(clnt, CLSET_FD_CLOSE, NULL); 91 } 92 freenetconfigent(nconf); 93 return (clnt); 94 } 95 96 97 CLIENT * 98 __yp_clnt_create_rsvdport(const char *hostname, rpcprog_t prog, 99 rpcvers_t vers, const char *nettype, 100 const uint_t sendsz, const uint_t recvsz) 101 { 102 if (nettype == 0) { 103 CLIENT *ret; 104 ret = __yp_clnt_create_rsvdport_netid_req(hostname, prog, 105 vers, "udp6", sendsz, recvsz); 106 if (ret == 0) 107 ret = __yp_clnt_create_rsvdport_netid_req(hostname, 108 prog, vers, "udp", sendsz, recvsz); 109 return (ret); 110 } else { 111 return (__yp_clnt_create_rsvdport_netid_req(hostname, prog, 112 vers, nettype, 113 sendsz, recvsz)); 114 } 115 } 116