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) 2018 Peter Tribble. 25 * Copyright (c) 1994-1996, by Sun Microsystems, Inc. 26 * All rights reserved. 27 */ 28 29 #include <stdio.h> 30 #include <stdlib.h> 31 #include <string.h> 32 #include <sys/types.h> 33 #include <sys/socket.h> 34 #include <netinet/in.h> 35 #include <arpa/inet.h> 36 #include <netdb.h> 37 #include <libsocket_priv.h> 38 #include "getent.h" 39 40 extern char *inet_nettoa(struct in_addr in); 41 42 static int 43 putnetmask(const struct in_addr key, const struct in_addr netmask, FILE *fp) 44 { 45 int rc = 0; 46 struct in_addr net; 47 48 net.s_addr = ntohl(key.s_addr); 49 if (fprintf(fp, "%-20s", inet_nettoa(net)) == EOF) 50 rc = 1; 51 if (fprintf(fp, " %s", inet_ntoa(netmask)) == EOF) 52 rc = 1; 53 if (putc('\n', fp) == EOF) 54 rc = 1; 55 return (rc); 56 } 57 58 /* 59 * getnetmaskbyaddr - get entries from network database 60 */ 61 int 62 dogetnetmask(const char **list) 63 { 64 int rc = EXC_SUCCESS; 65 struct in_addr addr, netmask; 66 67 if (list == NULL || *list == NULL) 68 return (EXC_ENUM_NOT_SUPPORTED); 69 70 for (; *list != NULL; list++) { 71 addr.s_addr = htonl(inet_network(*list)); 72 if (addr.s_addr != -1) { 73 if (getnetmaskbyaddr(addr, &netmask) == 0) { 74 (void) putnetmask(addr, netmask, stdout); 75 } else { 76 rc = EXC_NAME_NOT_FOUND; 77 } 78 } else { 79 rc = EXC_NAME_NOT_FOUND; 80 } 81 } 82 83 return (rc); 84 } 85