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 * Copyright (c) 1991-1994 Sun Microsystems, Inc 24 * 25 * lib/libsocket/inet/getservbyname_r.c 26 * 27 * getservbyname_r() is defined in this file. It is implemented on top of 28 * _get_hostserv_inetnetdir_byname() which is also used to implement 29 * netdir_getbyname() for inet family transports. In turn the common code 30 * uses the name service switch policy for "hosts" and "services" unless 31 * the administrator chooses to bypass the name service switch by 32 * specifying third-party supplied nametoaddr libs for inet transports 33 * in /etc/netconfig. 34 * 35 * getservbyport_r() is similarly related to _get_hostserv_inetnetdir_byaddr() 36 * and netdir_getbyaddr(); 37 * 38 * The common code lives in lib/libnsl/nss/netdir_inet.c. 39 * 40 * getservent_r(), setservent() and endservent() are *not* implemented on top 41 * of the common interface; they go straight to the switch and are 42 * defined in getservent_r.c. 43 * 44 * There is absolutely no data sharing, not even the stayopen flag or 45 * enumeration state, between getservbyYY_r() and getservent_r(); 46 */ 47 48 #pragma ident "%Z%%M% %I% %E% SMI" 49 50 #include <netdb.h> 51 #include <netdir.h> 52 #include <sys/types.h> 53 #include <nss_netdir.h> 54 55 extern int str2servent(const char *, int, void *, char *, int); 56 extern struct netconfig *__rpc_getconfip(); 57 58 struct servent * 59 getservbyname_r(const char *name, const char *proto, struct servent *result, 60 char *buffer, int buflen) 61 { 62 struct netconfig *nconf; 63 struct nss_netdirbyname_in nssin; 64 union nss_netdirbyname_out nssout; 65 int neterr; 66 67 if ((nconf = __rpc_getconfip("udp")) == NULL && 68 (nconf = __rpc_getconfip("tcp")) == NULL) { 69 return ((struct servent *)NULL); 70 } 71 nssin.op_t = NSS_SERV; 72 nssin.arg.nss.serv.name = name; 73 nssin.arg.nss.serv.proto = proto; 74 nssin.arg.nss.serv.buf = buffer; 75 nssin.arg.nss.serv.buflen = buflen; 76 77 nssout.nss.serv = result; 78 79 /* 80 * We pass in nconf and let the implementation of the long-named func 81 * decide whether to use the switch based on nc_nlookups. 82 */ 83 neterr = _get_hostserv_inetnetdir_byname(nconf, &nssin, &nssout); 84 85 (void) freenetconfigent(nconf); 86 if (neterr != ND_OK) { 87 return ((struct servent *)NULL); 88 } 89 return (nssout.nss.serv); 90 } 91 92 struct servent * 93 getservbyport_r(int port, const char *proto, struct servent *result, 94 char *buffer, int buflen) 95 { 96 struct netconfig *nconf; 97 struct nss_netdirbyaddr_in nssin; 98 union nss_netdirbyaddr_out nssout; 99 int neterr; 100 101 if ((nconf = __rpc_getconfip("udp")) == NULL && 102 (nconf = __rpc_getconfip("tcp")) == NULL) { 103 return ((struct servent *)NULL); 104 } 105 nssin.op_t = NSS_SERV; 106 nssin.arg.nss.serv.port = port; 107 nssin.arg.nss.serv.proto = proto; 108 nssin.arg.nss.serv.buf = buffer; 109 nssin.arg.nss.serv.buflen = buflen; 110 111 nssout.nss.serv = result; 112 113 /* 114 * We pass in nconf and let the implementation of this long-named func 115 * decide whether to use the switch based on nc_nlookups. 116 */ 117 neterr = _get_hostserv_inetnetdir_byaddr(nconf, &nssin, &nssout); 118 119 (void) freenetconfigent(nconf); 120 if (neterr != ND_OK) { 121 return ((struct servent *)NULL); 122 } 123 return (nssout.nss.serv); 124 } 125