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 * nis/ether_addr.c -- "nis" backend for nsswitch "ethers" database 24 * 25 * Copyright (c) 1988-1992 Sun Microsystems Inc 26 * All Rights Reserved. 27 */ 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 /* 32 * All routines necessary to deal with the ethers NIS maps. The maps 33 * contain mapping between 48 bit ethernet addresses and their corresponding 34 * hosts name. The addresses have an ascii representation of the form 35 * "x:x:x:x:x:x" where x is a hex number between 0x00 and 0xff; the 36 * bytes are always in network order. 37 */ 38 39 #include <stdio.h> 40 #include <sys/types.h> 41 #include <sys/socket.h> 42 #include <net/if.h> 43 #include <netinet/in.h> 44 #include <net/if_arp.h> 45 #include <netinet/if_ether.h> 46 #include <nss_dbdefs.h> 47 #include "nis_common.h" 48 49 static nss_status_t 50 getbyhost(be, a) 51 nis_backend_ptr_t be; 52 void *a; 53 { 54 nss_XbyY_args_t *argp = (nss_XbyY_args_t *) a; 55 56 return (_nss_nis_lookup(be, argp, 0, "ethers.byname", 57 argp->key.name, 0)); 58 } 59 60 static nss_status_t 61 getbyether(be, a) 62 nis_backend_ptr_t be; 63 void *a; 64 { 65 nss_XbyY_args_t *argp = (nss_XbyY_args_t *) a; 66 char etherstr[18]; 67 u_char *e = argp->key.ether; 68 69 sprintf(etherstr, "%x:%x:%x:%x:%x:%x", 70 *e, *(e + 1), *(e + 2), *(e + 3), *(e + 4), *(e + 5)); 71 return (_nss_nis_lookup(be, argp, 0, "ethers.byaddr", etherstr, 0)); 72 } 73 74 static nis_backend_op_t ethers_ops[] = { 75 _nss_nis_destr, 76 getbyhost, 77 getbyether 78 }; 79 80 /*ARGSUSED*/ 81 nss_backend_t * 82 _nss_nis_ethers_constr(dummy1, dummy2, dummy3) 83 const char *dummy1, *dummy2, *dummy3; 84 { 85 return (_nss_nis_constr(ethers_ops, 86 sizeof (ethers_ops) / sizeof (ethers_ops[0]), 87 "ethers.byaddr")); 88 } 89