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 2006 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 "mt.h" 31 #include <sys/types.h> 32 #include <string.h> 33 #include <stdio.h> 34 #include <netconfig.h> 35 #include <netdir.h> 36 #include <rpc/rpc.h> 37 38 static CLIENT * 39 __yp_clnt_create_rsvdport_netid_req(const char *hostname, rpcprog_t prog, 40 rpcvers_t vers, const char *nettype, 41 const uint_t sendsz, const uint_t recvsz) 42 { 43 struct netconfig *nconf; 44 struct netbuf *svcaddr; 45 struct t_bind *tbind; 46 CLIENT *clnt = NULL; 47 int fd; 48 const char *nt; 49 50 if (nettype == NULL) 51 return (0); 52 else 53 nt = nettype; 54 55 if (strcmp(nt, "udp") && strcmp(nt, "tcp") && 56 strcmp(nt, "udp6") && strcmp(nt, "tcp6")) 57 return (clnt_create(hostname, prog, vers, nt)); 58 59 if ((nconf = getnetconfigent((void *) nt)) == NULL) 60 return (NULL); 61 62 if ((fd = t_open(nconf->nc_device, O_RDWR, NULL)) == -1) { 63 freenetconfigent(nconf); 64 return (NULL); 65 } 66 67 /* Attempt to set reserved port, but we don't care if it fails */ 68 (void) netdir_options(nconf, ND_SET_RESERVEDPORT, fd, NULL); 69 70 /* LINTED pointer cast */ 71 if ((tbind = (struct t_bind *)t_alloc(fd, T_BIND, T_ADDR)) == NULL) { 72 freenetconfigent(nconf); 73 return (NULL); 74 } 75 76 svcaddr = &(tbind->addr); 77 78 if (!rpcb_getaddr(prog, vers, nconf, svcaddr, hostname)) { 79 (void) t_close(fd); 80 (void) t_free((char *)tbind, T_BIND); 81 freenetconfigent(nconf); 82 return (NULL); 83 } 84 85 if ((clnt = clnt_tli_create(fd, nconf, svcaddr, 86 prog, vers, sendsz, recvsz)) == NULL) { 87 (void) t_close(fd); 88 (void) t_free((char *)tbind, T_BIND); 89 } else { 90 (void) t_free((char *)tbind, T_BIND); 91 clnt_control(clnt, CLSET_FD_CLOSE, NULL); 92 } 93 freenetconfigent(nconf); 94 return (clnt); 95 } 96 97 98 CLIENT * 99 __yp_clnt_create_rsvdport(const char *hostname, rpcprog_t prog, 100 rpcvers_t vers, const char *nettype, 101 const uint_t sendsz, const uint_t recvsz) 102 { 103 if (nettype == 0) { 104 CLIENT *ret; 105 ret = __yp_clnt_create_rsvdport_netid_req(hostname, prog, 106 vers, "udp6", sendsz, recvsz); 107 if (ret == 0) 108 ret = __yp_clnt_create_rsvdport_netid_req(hostname, 109 prog, vers, "udp", sendsz, recvsz); 110 return (ret); 111 } else { 112 return (__yp_clnt_create_rsvdport_netid_req(hostname, prog, 113 vers, nettype, 114 sendsz, recvsz)); 115 } 116 } 117