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 * nis/gethostent.c -- "nis" backend for nsswitch "ipnodes" database 26 */ 27 28 #pragma ident "%Z%%M% %I% %E% SMI" 29 30 #include <ctype.h> 31 #include <netdb.h> 32 #include <stdio.h> 33 #include <string.h> 34 #include <netinet/in.h> 35 #include <arpa/inet.h> 36 #include <sys/socket.h> 37 #include "nis_common.h" 38 #include <stdlib.h> 39 40 41 static nss_status_t 42 getbyname(be, a) 43 nis_backend_ptr_t be; 44 void *a; 45 { 46 nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a; 47 nss_status_t res; 48 49 const char *s; 50 char c; 51 52 for (s = argp->key.ipnode.name; (c = *s) != '\0'; s++) { 53 if (isupper(c)) { 54 char *copy; 55 char *mung; 56 57 if ((copy = strdup(argp->key.ipnode.name)) == 0) { 58 return (NSS_UNAVAIL); 59 } 60 for (mung = copy + (s - argp->key.ipnode.name); 61 (c = *mung) != '\0'; mung++) { 62 if (isupper(c)) { 63 *mung = _tolower(c); 64 } 65 } 66 res = _nss_nis_lookup(be, argp, 1, "ipnodes.byname", 67 copy, 0); 68 if (res != NSS_SUCCESS) 69 argp->h_errno = __nss2herrno(res); 70 free(copy); 71 return (res); 72 } 73 } 74 res = _nss_nis_lookup(be, argp, 1, 75 "ipnodes.byname", argp->key.ipnode.name, 0); 76 if (res != NSS_SUCCESS) 77 argp->h_errno = __nss2herrno(res); 78 return (res); 79 } 80 81 static nss_status_t 82 getbyaddr(be, a) 83 nis_backend_ptr_t be; 84 void *a; 85 { 86 nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a; 87 struct in6_addr addr; 88 char buf[INET6_ADDRSTRLEN + 1]; 89 nss_status_t res; 90 91 /* === Do we really want to be this pedantic? */ 92 if (argp->key.hostaddr.type != AF_INET6 || 93 argp->key.hostaddr.len != sizeof (addr)) { 94 return (NSS_NOTFOUND); 95 } 96 (void) memcpy(&addr, argp->key.hostaddr.addr, sizeof (addr)); 97 if (IN6_IS_ADDR_V4MAPPED(&addr)) { 98 if (inet_ntop(AF_INET, (void *) &addr.s6_addr[12], 99 (void *)buf, INET_ADDRSTRLEN) == NULL) { 100 return (NSS_NOTFOUND); 101 } 102 } else { 103 if (inet_ntop(AF_INET6, (void *)&addr, (void *)buf, 104 INET6_ADDRSTRLEN) == NULL) 105 return (NSS_NOTFOUND); 106 } 107 108 res = _nss_nis_lookup(be, argp, 1, "ipnodes.byaddr", buf, 0); 109 if (res != NSS_SUCCESS) 110 argp->h_errno = __nss2herrno(res); 111 return (res); 112 } 113 114 115 static nis_backend_op_t ipnodes_ops[] = { 116 _nss_nis_destr, 117 _nss_nis_endent, 118 _nss_nis_setent, 119 _nss_nis_getent_netdb, 120 getbyname, 121 getbyaddr 122 }; 123 124 /*ARGSUSED*/ 125 nss_backend_t * 126 _nss_nis_ipnodes_constr(dummy1, dummy2, dummy3) 127 const char *dummy1, *dummy2, *dummy3; 128 { 129 return (_nss_nis_constr(ipnodes_ops, 130 sizeof (ipnodes_ops) / sizeof (ipnodes_ops[0]), 131 "ipnodes.byaddr")); 132 } 133