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 /* 24 * Copyright (c) 1994-2000 by Sun Microsystems, Inc. 25 * All rights reserved. 26 */ 27 28 #include <stdio.h> 29 #include <stdlib.h> 30 #include <sys/types.h> 31 #include <sys/socket.h> 32 #include <netinet/in.h> 33 #include <arpa/inet.h> 34 #include <string.h> 35 #include <netdb.h> 36 #include "getent.h" 37 38 static int 39 puthostent(const struct hostent *hp, FILE *fp) 40 { 41 char **p; 42 int rc = 0; 43 44 if (hp == NULL) { 45 return (1); 46 } 47 48 for (p = hp->h_addr_list; *p != 0; p++) { 49 struct in_addr in; 50 char **q; 51 52 (void) memcpy((char *)&in.s_addr, *p, sizeof (in)); 53 if (fprintf(fp, "%s\t%s", 54 inet_ntoa(in), hp->h_name) == EOF) 55 rc = 1; 56 for (q = hp->h_aliases; *q != 0; q++) { 57 if (fprintf(fp, " %s", *q) == EOF) 58 rc = 1; 59 } 60 if (putc('\n', fp) == EOF) 61 rc = 1; 62 } 63 return (rc); 64 } 65 66 /* 67 * gethostbyname/addr - get entries from hosts database 68 */ 69 int 70 dogethost(const char **list) 71 { 72 struct hostent *hp; 73 int rc = EXC_SUCCESS; 74 75 if (list == NULL || *list == NULL) { 76 while ((hp = gethostent()) != NULL) 77 (void) puthostent(hp, stdout); 78 } else { 79 for (; *list != NULL; list++) { 80 struct in_addr addr; 81 addr.s_addr = inet_addr(*list); 82 if (addr.s_addr != (in_addr_t)-1) 83 hp = gethostbyaddr((char *)&addr, 84 sizeof (addr), AF_INET); 85 else 86 hp = gethostbyname(*list); 87 if (hp == NULL) 88 rc = EXC_NAME_NOT_FOUND; 89 else 90 (void) puthostent(hp, stdout); 91 } 92 } 93 94 return (rc); 95 } 96