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) 1988-1992 Sun Microsystems Inc 24*0Sstevel@tonic-gate * All Rights Reserved. 25*0Sstevel@tonic-gate * 26*0Sstevel@tonic-gate * nis/getservent.c -- "nis" backend for nsswitch "services" database 27*0Sstevel@tonic-gate */ 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 30*0Sstevel@tonic-gate 31*0Sstevel@tonic-gate #include "nis_common.h" 32*0Sstevel@tonic-gate #include <stdio.h> 33*0Sstevel@tonic-gate #include <string.h> 34*0Sstevel@tonic-gate #include <signal.h> 35*0Sstevel@tonic-gate #include <malloc.h> 36*0Sstevel@tonic-gate #include <netdb.h> 37*0Sstevel@tonic-gate #include <synch.h> 38*0Sstevel@tonic-gate #include <rpcsvc/ypclnt.h> 39*0Sstevel@tonic-gate #include <thread.h> 40*0Sstevel@tonic-gate #include <sys/types.h> 41*0Sstevel@tonic-gate #include <netinet/in.h> 42*0Sstevel@tonic-gate 43*0Sstevel@tonic-gate static int 44*0Sstevel@tonic-gate check_name(args) 45*0Sstevel@tonic-gate nss_XbyY_args_t *args; 46*0Sstevel@tonic-gate { 47*0Sstevel@tonic-gate struct servent *serv = (struct servent *) args->returnval; 48*0Sstevel@tonic-gate const char *name = args->key.serv.serv.name; 49*0Sstevel@tonic-gate const char *proto = args->key.serv.proto; 50*0Sstevel@tonic-gate char **aliasp; 51*0Sstevel@tonic-gate 52*0Sstevel@tonic-gate if (proto != 0 && strcmp(serv->s_proto, proto) != 0) { 53*0Sstevel@tonic-gate return (0); 54*0Sstevel@tonic-gate } 55*0Sstevel@tonic-gate if (strcmp(serv->s_name, name) == 0) { 56*0Sstevel@tonic-gate return (1); 57*0Sstevel@tonic-gate } 58*0Sstevel@tonic-gate for (aliasp = serv->s_aliases; *aliasp != 0; aliasp++) { 59*0Sstevel@tonic-gate if (strcmp(*aliasp, name) == 0) { 60*0Sstevel@tonic-gate return (1); 61*0Sstevel@tonic-gate } 62*0Sstevel@tonic-gate } 63*0Sstevel@tonic-gate return (0); 64*0Sstevel@tonic-gate } 65*0Sstevel@tonic-gate 66*0Sstevel@tonic-gate static mutex_t no_byname_lock = DEFAULTMUTEX; 67*0Sstevel@tonic-gate static int no_byname_map = 0; 68*0Sstevel@tonic-gate 69*0Sstevel@tonic-gate static nss_status_t 70*0Sstevel@tonic-gate getbyname(be, a) 71*0Sstevel@tonic-gate nis_backend_ptr_t be; 72*0Sstevel@tonic-gate void *a; 73*0Sstevel@tonic-gate { 74*0Sstevel@tonic-gate nss_XbyY_args_t *argp = (nss_XbyY_args_t *) a; 75*0Sstevel@tonic-gate const char *name = argp->key.serv.serv.name; 76*0Sstevel@tonic-gate const char *proto = argp->key.serv.proto; 77*0Sstevel@tonic-gate int no_map; 78*0Sstevel@tonic-gate sigset_t oldmask, newmask; 79*0Sstevel@tonic-gate 80*0Sstevel@tonic-gate sigfillset(&newmask); 81*0Sstevel@tonic-gate (void) _thr_sigsetmask(SIG_SETMASK, &newmask, &oldmask); 82*0Sstevel@tonic-gate (void) _mutex_lock(&no_byname_lock); 83*0Sstevel@tonic-gate no_map = no_byname_map; 84*0Sstevel@tonic-gate (void) _mutex_unlock(&no_byname_lock); 85*0Sstevel@tonic-gate (void) _thr_sigsetmask(SIG_SETMASK, &oldmask, NULL); 86*0Sstevel@tonic-gate 87*0Sstevel@tonic-gate if (no_map == 0) { 88*0Sstevel@tonic-gate int yp_status; 89*0Sstevel@tonic-gate nss_status_t res; 90*0Sstevel@tonic-gate 91*0Sstevel@tonic-gate if (proto == 0) { 92*0Sstevel@tonic-gate res = _nss_nis_lookup(be, argp, 1, 93*0Sstevel@tonic-gate "services.byservicename", name, &yp_status); 94*0Sstevel@tonic-gate } else { 95*0Sstevel@tonic-gate char *key = malloc(strlen(name) + strlen(proto) + 3); 96*0Sstevel@tonic-gate 97*0Sstevel@tonic-gate if (key == 0) { 98*0Sstevel@tonic-gate return (NSS_UNAVAIL); 99*0Sstevel@tonic-gate } 100*0Sstevel@tonic-gate sprintf(key, "%s/%s", name, proto); 101*0Sstevel@tonic-gate res = _nss_nis_lookup(be, argp, 1, 102*0Sstevel@tonic-gate "services.byservicename", key, &yp_status); 103*0Sstevel@tonic-gate free(key); 104*0Sstevel@tonic-gate } 105*0Sstevel@tonic-gate 106*0Sstevel@tonic-gate if (yp_status == YPERR_MAP) { 107*0Sstevel@tonic-gate sigfillset(&newmask); 108*0Sstevel@tonic-gate _thr_sigsetmask(SIG_SETMASK, &newmask, &oldmask); 109*0Sstevel@tonic-gate _mutex_lock(&no_byname_lock); 110*0Sstevel@tonic-gate no_byname_map = 1; 111*0Sstevel@tonic-gate _mutex_unlock(&no_byname_lock); 112*0Sstevel@tonic-gate _thr_sigsetmask(SIG_SETMASK, &oldmask, (sigset_t*)NULL); 113*0Sstevel@tonic-gate } else /* if (res == NSS_SUCCESS) <==== */ { 114*0Sstevel@tonic-gate return (res); 115*0Sstevel@tonic-gate } 116*0Sstevel@tonic-gate } 117*0Sstevel@tonic-gate 118*0Sstevel@tonic-gate return (_nss_nis_XY_all(be, argp, 1, name, check_name)); 119*0Sstevel@tonic-gate } 120*0Sstevel@tonic-gate 121*0Sstevel@tonic-gate static int 122*0Sstevel@tonic-gate check_port(args) 123*0Sstevel@tonic-gate nss_XbyY_args_t *args; 124*0Sstevel@tonic-gate { 125*0Sstevel@tonic-gate struct servent *serv = (struct servent *) args->returnval; 126*0Sstevel@tonic-gate 127*0Sstevel@tonic-gate /* 128*0Sstevel@tonic-gate * We only resorted to _nss_nis_XY_all because proto == 0, so just... 129*0Sstevel@tonic-gate */ 130*0Sstevel@tonic-gate return (serv->s_port == args->key.serv.serv.port); 131*0Sstevel@tonic-gate } 132*0Sstevel@tonic-gate 133*0Sstevel@tonic-gate static nss_status_t 134*0Sstevel@tonic-gate getbyport(be, a) 135*0Sstevel@tonic-gate nis_backend_ptr_t be; 136*0Sstevel@tonic-gate void *a; 137*0Sstevel@tonic-gate { 138*0Sstevel@tonic-gate nss_XbyY_args_t *argp = (nss_XbyY_args_t *) a; 139*0Sstevel@tonic-gate int port = ntohs(argp->key.serv.serv.port); 140*0Sstevel@tonic-gate const char *proto = argp->key.serv.proto; 141*0Sstevel@tonic-gate char *key; 142*0Sstevel@tonic-gate nss_status_t res; 143*0Sstevel@tonic-gate 144*0Sstevel@tonic-gate if (proto == 0) { 145*0Sstevel@tonic-gate char portstr[12]; 146*0Sstevel@tonic-gate 147*0Sstevel@tonic-gate sprintf(portstr, "%d", port); 148*0Sstevel@tonic-gate return (_nss_nis_XY_all(be, argp, 1, portstr, check_port)); 149*0Sstevel@tonic-gate } 150*0Sstevel@tonic-gate 151*0Sstevel@tonic-gate if ((key = malloc(strlen(proto) + 14)) == 0) { 152*0Sstevel@tonic-gate return (NSS_UNAVAIL); 153*0Sstevel@tonic-gate } 154*0Sstevel@tonic-gate sprintf(key, "%d/%s", port, proto); 155*0Sstevel@tonic-gate 156*0Sstevel@tonic-gate res = _nss_nis_lookup(be, argp, 1, "services.byname", key, 0); 157*0Sstevel@tonic-gate 158*0Sstevel@tonic-gate free(key); 159*0Sstevel@tonic-gate return (res); 160*0Sstevel@tonic-gate } 161*0Sstevel@tonic-gate 162*0Sstevel@tonic-gate static nis_backend_op_t serv_ops[] = { 163*0Sstevel@tonic-gate _nss_nis_destr, 164*0Sstevel@tonic-gate _nss_nis_endent, 165*0Sstevel@tonic-gate _nss_nis_setent, 166*0Sstevel@tonic-gate _nss_nis_getent_netdb, 167*0Sstevel@tonic-gate getbyname, 168*0Sstevel@tonic-gate getbyport 169*0Sstevel@tonic-gate }; 170*0Sstevel@tonic-gate 171*0Sstevel@tonic-gate /*ARGSUSED*/ 172*0Sstevel@tonic-gate nss_backend_t * 173*0Sstevel@tonic-gate _nss_nis_services_constr(dummy1, dummy2, dummy3) 174*0Sstevel@tonic-gate const char *dummy1, *dummy2, *dummy3; 175*0Sstevel@tonic-gate { 176*0Sstevel@tonic-gate return (_nss_nis_constr(serv_ops, 177*0Sstevel@tonic-gate sizeof (serv_ops) / sizeof (serv_ops[0]), 178*0Sstevel@tonic-gate "services.byname")); 179*0Sstevel@tonic-gate } 180