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 #pragma ident "%Z%%M% %I% %E% SMI" 23 24 /* 25 * Copyright (c) 1994-2000 by Sun Microsystems, Inc. 26 * All rights reserved. 27 */ 28 29 #include <stdio.h> 30 #include <stdlib.h> 31 #include <sys/types.h> 32 #include <sys/socket.h> 33 #include <netinet/in.h> 34 #include <arpa/inet.h> 35 #include <string.h> 36 #include <netdb.h> 37 #include "getent.h" 38 39 static int 40 puthostent(const struct hostent *hp, FILE *fp) 41 { 42 char **p; 43 int rc = 0; 44 45 if (hp == NULL) { 46 return (1); 47 } 48 49 for (p = hp->h_addr_list; *p != 0; p++) { 50 struct in_addr in; 51 char **q; 52 53 (void) memcpy((char *)&in.s_addr, *p, sizeof (in)); 54 if (fprintf(fp, "%s\t%s", 55 inet_ntoa(in), hp->h_name) == EOF) 56 rc = 1; 57 for (q = hp->h_aliases; *q != 0; q++) { 58 if (fprintf(fp, " %s", *q) == EOF) 59 rc = 1; 60 } 61 if (putc('\n', fp) == EOF) 62 rc = 1; 63 } 64 return (rc); 65 } 66 67 /* 68 * gethostbyname/addr - get entries from hosts database 69 */ 70 int 71 dogethost(const char **list) 72 { 73 struct hostent *hp; 74 int rc = EXC_SUCCESS; 75 76 if (list == NULL || *list == NULL) { 77 while ((hp = gethostent()) != NULL) 78 (void) puthostent(hp, stdout); 79 } else { 80 for (; *list != NULL; list++) { 81 struct in_addr addr; 82 addr.s_addr = inet_addr(*list); 83 if (addr.s_addr != (in_addr_t)-1) 84 hp = gethostbyaddr((char *)&addr, 85 sizeof (addr), AF_INET); 86 else 87 hp = gethostbyname(*list); 88 if (hp == NULL) 89 rc = EXC_NAME_NOT_FOUND; 90 else 91 (void) puthostent(hp, stdout); 92 } 93 } 94 95 return (rc); 96 } 97