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 2003 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 * 26 * Copyright 2019 OmniOS Community Edition (OmniOSce) Association. 27 */ 28 29 #include <deflt.h> 30 #include <string.h> 31 #include <stddef.h> 32 #include <stdlib.h> 33 #include <stdio.h> 34 #include <compat.h> 35 36 #define DEFAULT_IP_LINE DEFAULT_IP"=" 37 38 /* 39 * Code to handle /etc/default/ file for IPv4 command output compatibility 40 * 41 * Note: Handles BOTH the same as IP_VERSION6. 42 * 43 * Returns 1 if IP_VERSION4; 0 for other versions. 44 * Returns -1 if the value of DEFAULT_IP found in /etc/default/inet_type is 45 * invalid. 46 */ 47 int 48 get_compat_flag(char **value) 49 { 50 if (defopen(INET_DEFAULT_FILE) == 0) { 51 char *cp; 52 int flags; 53 54 /* 55 * ignore case 56 */ 57 flags = defcntl(DC_GETFLAGS, 0); 58 TURNOFF(flags, DC_CASE); 59 (void) defcntl(DC_SETFLAGS, flags); 60 61 if ((cp = defread(DEFAULT_IP_LINE)) != NULL) 62 *value = strdup(cp); 63 64 /* close */ 65 (void) defopen((char *)NULL); 66 67 if (*value != NULL) { 68 if (strcasecmp(*value, "IP_VERSION4") == 0) { 69 return (DEFAULT_PROT_V4_ONLY); 70 } else if (strcasecmp(*value, "BOTH") == 0 || 71 strcasecmp(*value, "IP_VERSION6") == 0) { 72 return (DEFAULT_PROT_BOTH); 73 } else { 74 return (DEFAULT_PROT_BAD_VALUE); 75 } 76 } 77 } 78 /* No value set */ 79 return (DEFAULT_PROT_BOTH); 80 } 81