1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright (c) 1991-1994 Sun Microsystems, Inc 24*0Sstevel@tonic-gate * 25*0Sstevel@tonic-gate * lib/libsocket/inet/getservbyname_r.c 26*0Sstevel@tonic-gate * 27*0Sstevel@tonic-gate * getservbyname_r() is defined in this file. It is implemented on top of 28*0Sstevel@tonic-gate * _get_hostserv_inetnetdir_byname() which is also used to implement 29*0Sstevel@tonic-gate * netdir_getbyname() for inet family transports. In turn the common code 30*0Sstevel@tonic-gate * uses the name service switch policy for "hosts" and "services" unless 31*0Sstevel@tonic-gate * the administrator chooses to bypass the name service switch by 32*0Sstevel@tonic-gate * specifying third-party supplied nametoaddr libs for inet transports 33*0Sstevel@tonic-gate * in /etc/netconfig. 34*0Sstevel@tonic-gate * 35*0Sstevel@tonic-gate * getservbyport_r() is similarly related to _get_hostserv_inetnetdir_byaddr() 36*0Sstevel@tonic-gate * and netdir_getbyaddr(); 37*0Sstevel@tonic-gate * 38*0Sstevel@tonic-gate * The common code lives in lib/libnsl/nss/netdir_inet.c. 39*0Sstevel@tonic-gate * 40*0Sstevel@tonic-gate * getservent_r(), setservent() and endservent() are *not* implemented on top 41*0Sstevel@tonic-gate * of the common interface; they go straight to the switch and are 42*0Sstevel@tonic-gate * defined in getservent_r.c. 43*0Sstevel@tonic-gate * 44*0Sstevel@tonic-gate * There is absolutely no data sharing, not even the stayopen flag or 45*0Sstevel@tonic-gate * enumeration state, between getservbyYY_r() and getservent_r(); 46*0Sstevel@tonic-gate */ 47*0Sstevel@tonic-gate 48*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 49*0Sstevel@tonic-gate 50*0Sstevel@tonic-gate #include <netdb.h> 51*0Sstevel@tonic-gate #include <netdir.h> 52*0Sstevel@tonic-gate #include <sys/types.h> 53*0Sstevel@tonic-gate #include <nss_netdir.h> 54*0Sstevel@tonic-gate 55*0Sstevel@tonic-gate extern int str2servent(const char *, int, void *, char *, int); 56*0Sstevel@tonic-gate extern struct netconfig *__rpc_getconfip(); 57*0Sstevel@tonic-gate 58*0Sstevel@tonic-gate struct servent * 59*0Sstevel@tonic-gate getservbyname_r(const char *name, const char *proto, struct servent *result, 60*0Sstevel@tonic-gate char *buffer, int buflen) 61*0Sstevel@tonic-gate { 62*0Sstevel@tonic-gate struct netconfig *nconf; 63*0Sstevel@tonic-gate struct nss_netdirbyname_in nssin; 64*0Sstevel@tonic-gate union nss_netdirbyname_out nssout; 65*0Sstevel@tonic-gate int neterr; 66*0Sstevel@tonic-gate 67*0Sstevel@tonic-gate if ((nconf = __rpc_getconfip("udp")) == NULL && 68*0Sstevel@tonic-gate (nconf = __rpc_getconfip("tcp")) == NULL) { 69*0Sstevel@tonic-gate return ((struct servent *)NULL); 70*0Sstevel@tonic-gate } 71*0Sstevel@tonic-gate nssin.op_t = NSS_SERV; 72*0Sstevel@tonic-gate nssin.arg.nss.serv.name = name; 73*0Sstevel@tonic-gate nssin.arg.nss.serv.proto = proto; 74*0Sstevel@tonic-gate nssin.arg.nss.serv.buf = buffer; 75*0Sstevel@tonic-gate nssin.arg.nss.serv.buflen = buflen; 76*0Sstevel@tonic-gate 77*0Sstevel@tonic-gate nssout.nss.serv = result; 78*0Sstevel@tonic-gate 79*0Sstevel@tonic-gate /* 80*0Sstevel@tonic-gate * We pass in nconf and let the implementation of the long-named func 81*0Sstevel@tonic-gate * decide whether to use the switch based on nc_nlookups. 82*0Sstevel@tonic-gate */ 83*0Sstevel@tonic-gate neterr = _get_hostserv_inetnetdir_byname(nconf, &nssin, &nssout); 84*0Sstevel@tonic-gate 85*0Sstevel@tonic-gate (void) freenetconfigent(nconf); 86*0Sstevel@tonic-gate if (neterr != ND_OK) { 87*0Sstevel@tonic-gate return ((struct servent *)NULL); 88*0Sstevel@tonic-gate } 89*0Sstevel@tonic-gate return (nssout.nss.serv); 90*0Sstevel@tonic-gate } 91*0Sstevel@tonic-gate 92*0Sstevel@tonic-gate struct servent * 93*0Sstevel@tonic-gate getservbyport_r(int port, const char *proto, struct servent *result, 94*0Sstevel@tonic-gate char *buffer, int buflen) 95*0Sstevel@tonic-gate { 96*0Sstevel@tonic-gate struct netconfig *nconf; 97*0Sstevel@tonic-gate struct nss_netdirbyaddr_in nssin; 98*0Sstevel@tonic-gate union nss_netdirbyaddr_out nssout; 99*0Sstevel@tonic-gate int neterr; 100*0Sstevel@tonic-gate 101*0Sstevel@tonic-gate if ((nconf = __rpc_getconfip("udp")) == NULL && 102*0Sstevel@tonic-gate (nconf = __rpc_getconfip("tcp")) == NULL) { 103*0Sstevel@tonic-gate return ((struct servent *)NULL); 104*0Sstevel@tonic-gate } 105*0Sstevel@tonic-gate nssin.op_t = NSS_SERV; 106*0Sstevel@tonic-gate nssin.arg.nss.serv.port = port; 107*0Sstevel@tonic-gate nssin.arg.nss.serv.proto = proto; 108*0Sstevel@tonic-gate nssin.arg.nss.serv.buf = buffer; 109*0Sstevel@tonic-gate nssin.arg.nss.serv.buflen = buflen; 110*0Sstevel@tonic-gate 111*0Sstevel@tonic-gate nssout.nss.serv = result; 112*0Sstevel@tonic-gate 113*0Sstevel@tonic-gate /* 114*0Sstevel@tonic-gate * We pass in nconf and let the implementation of this long-named func 115*0Sstevel@tonic-gate * decide whether to use the switch based on nc_nlookups. 116*0Sstevel@tonic-gate */ 117*0Sstevel@tonic-gate neterr = _get_hostserv_inetnetdir_byaddr(nconf, &nssin, &nssout); 118*0Sstevel@tonic-gate 119*0Sstevel@tonic-gate (void) freenetconfigent(nconf); 120*0Sstevel@tonic-gate if (neterr != ND_OK) { 121*0Sstevel@tonic-gate return ((struct servent *)NULL); 122*0Sstevel@tonic-gate } 123*0Sstevel@tonic-gate return (nssout.nss.serv); 124*0Sstevel@tonic-gate } 125