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