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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 * 25 * files/getnetent.c -- "files" backend for nsswitch "networks" database 26 */ 27 28 #include <sys/types.h> 29 #include <sys/socket.h> 30 #include <netinet/in.h> 31 #include <arpa/inet.h> 32 #include <netdb.h> 33 #include "files_common.h" 34 #include <strings.h> 35 #include <ctype.h> 36 37 static nss_status_t 38 getbyname(be, a) 39 files_backend_ptr_t be; 40 void *a; 41 { 42 nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a; 43 44 return (_nss_files_XY_all(be, argp, 1, argp->key.name, 45 _nss_files_check_name_aliases)); 46 } 47 48 static int 49 check_addr(nss_XbyY_args_t *argp, const char *line, int linelen) 50 { 51 52 const char *limit, *linep, *addrstart; 53 int addrlen; 54 char addrbuf[NSS_LINELEN_NETWORKS]; 55 in_addr_t linenet; 56 57 linep = line; 58 limit = line + linelen; 59 60 /* skip network name */ 61 while (linep < limit && !isspace(*linep)) 62 linep++; 63 /* skip the delimiting spaces */ 64 while (linep < limit && isspace(*linep)) 65 linep++; 66 if (linep == limit) 67 return (0); 68 69 addrstart = linep; 70 while (linep < limit && !isspace(*linep)) 71 linep++; 72 addrlen = linep - addrstart; 73 if (addrlen < sizeof (addrbuf)) { 74 (void) memcpy(addrbuf, addrstart, addrlen); 75 addrbuf[addrlen] = '\0'; 76 if ((linenet = inet_network(addrbuf)) == 77 (in_addr_t)0xffffffffU) 78 return (0); 79 return (AF_INET == argp->key.netaddr.type && 80 linenet == argp->key.netaddr.net); 81 } 82 return (0); 83 } 84 85 static nss_status_t 86 getbyaddr(be, a) 87 files_backend_ptr_t be; 88 void *a; 89 { 90 nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a; 91 92 return (_nss_files_XY_all(be, argp, 1, 0, check_addr)); 93 } 94 95 static files_backend_op_t net_ops[] = { 96 _nss_files_destr, 97 _nss_files_endent, 98 _nss_files_setent, 99 _nss_files_getent_netdb, 100 getbyname, 101 getbyaddr 102 }; 103 104 /*ARGSUSED*/ 105 nss_backend_t * 106 _nss_files_networks_constr(dummy1, dummy2, dummy3) 107 const char *dummy1, *dummy2, *dummy3; 108 { 109 return (_nss_files_constr(net_ops, 110 sizeof (net_ops) / sizeof (net_ops[0]), 111 _PATH_NETWORKS, 112 NSS_LINELEN_NETWORKS, 113 NULL)); 114 } 115