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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 1988-1992, 2003 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 * 26 * nis/gethostent.c -- "nis" backend for nsswitch "ipnodes" database 27 */ 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 #include <ctype.h> 32 #include <netdb.h> 33 #include <stdio.h> 34 #include <string.h> 35 #include <netinet/in.h> 36 #include <arpa/inet.h> 37 #include <sys/socket.h> 38 #include "nis_common.h" 39 #include <stdlib.h> 40 41 42 static nss_status_t 43 getbyname(be, a) 44 nis_backend_ptr_t be; 45 void *a; 46 { 47 nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a; 48 nss_status_t res; 49 50 const char *s; 51 char c; 52 53 for (s = argp->key.ipnode.name; (c = *s) != '\0'; s++) { 54 if (isupper(c)) { 55 char *copy; 56 char *mung; 57 58 if ((copy = strdup(argp->key.ipnode.name)) == 0) { 59 return (NSS_UNAVAIL); 60 } 61 for (mung = copy + (s - argp->key.ipnode.name); 62 (c = *mung) != '\0'; mung++) { 63 if (isupper(c)) { 64 *mung = _tolower(c); 65 } 66 } 67 res = _nss_nis_lookup(be, argp, 1, "ipnodes.byname", 68 copy, 0); 69 if (res != NSS_SUCCESS) 70 argp->h_errno = __nss2herrno(res); 71 free(copy); 72 return (res); 73 } 74 } 75 res = _nss_nis_lookup(be, argp, 1, 76 "ipnodes.byname", argp->key.ipnode.name, 0); 77 if (res != NSS_SUCCESS) 78 argp->h_errno = __nss2herrno(res); 79 return (res); 80 } 81 82 static nss_status_t 83 getbyaddr(be, a) 84 nis_backend_ptr_t be; 85 void *a; 86 { 87 nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a; 88 struct in6_addr addr; 89 char buf[INET6_ADDRSTRLEN + 1]; 90 nss_status_t res; 91 92 /* === Do we really want to be this pedantic? */ 93 if (argp->key.hostaddr.type != AF_INET6 || 94 argp->key.hostaddr.len != sizeof (addr)) { 95 return (NSS_NOTFOUND); 96 } 97 memcpy(&addr, argp->key.hostaddr.addr, sizeof (addr)); 98 if (IN6_IS_ADDR_V4MAPPED(&addr)) { 99 if (inet_ntop(AF_INET, (void *) &addr.s6_addr[12], 100 (void *)buf, INET_ADDRSTRLEN) == NULL) { 101 return (NSS_NOTFOUND); 102 } 103 } else { 104 if (inet_ntop(AF_INET6, (void *)&addr, (void *)buf, 105 INET6_ADDRSTRLEN) == NULL) 106 return (NSS_NOTFOUND); 107 } 108 109 res = _nss_nis_lookup(be, argp, 1, "ipnodes.byaddr", buf, 0); 110 if (res != NSS_SUCCESS) 111 argp->h_errno = __nss2herrno(res); 112 return (res); 113 } 114 115 116 static nis_backend_op_t ipnodes_ops[] = { 117 _nss_nis_destr, 118 _nss_nis_endent, 119 _nss_nis_setent, 120 _nss_nis_getent_netdb, 121 getbyname, 122 getbyaddr 123 }; 124 125 /*ARGSUSED*/ 126 nss_backend_t * 127 _nss_nis_ipnodes_constr(dummy1, dummy2, dummy3) 128 const char *dummy1, *dummy2, *dummy3; 129 { 130 return (_nss_nis_constr(ipnodes_ops, 131 sizeof (ipnodes_ops) / sizeof (ipnodes_ops[0]), 132 "ipnodes.byaddr")); 133 } 134