xref: /onnv-gate/usr/src/cmd/cmd-inet/common/compat.c (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
24*0Sstevel@tonic-gate  * Use is subject to license terms.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
28*0Sstevel@tonic-gate 
29*0Sstevel@tonic-gate #include <deflt.h>
30*0Sstevel@tonic-gate #include <string.h>
31*0Sstevel@tonic-gate #include <stddef.h>
32*0Sstevel@tonic-gate #include <stdlib.h>
33*0Sstevel@tonic-gate #include <stdio.h>
34*0Sstevel@tonic-gate #include <compat.h>
35*0Sstevel@tonic-gate 
36*0Sstevel@tonic-gate #define	DEFAULT_IP_LINE		DEFAULT_IP"="
37*0Sstevel@tonic-gate 
38*0Sstevel@tonic-gate /*
39*0Sstevel@tonic-gate  * Code to handle /etc/default/ file for IPv4 command output compatibility
40*0Sstevel@tonic-gate  *
41*0Sstevel@tonic-gate  * Note: Handles BOTH the same as IP_VERSION6.
42*0Sstevel@tonic-gate  *
43*0Sstevel@tonic-gate  * Returns 1 if IP_VERSION4; 0 for other versions.
44*0Sstevel@tonic-gate  * Returns -1 if the value of DEFAULT_IP found in /etc/default/inet_type is
45*0Sstevel@tonic-gate  * invalid.
46*0Sstevel@tonic-gate  */
47*0Sstevel@tonic-gate int
get_compat_flag(char ** value)48*0Sstevel@tonic-gate get_compat_flag(char **value)
49*0Sstevel@tonic-gate {
50*0Sstevel@tonic-gate 	if (defopen(INET_DEFAULT_FILE) == 0) {
51*0Sstevel@tonic-gate 		char	*cp;
52*0Sstevel@tonic-gate 		int	flags;
53*0Sstevel@tonic-gate 
54*0Sstevel@tonic-gate 		/*
55*0Sstevel@tonic-gate 		 * ignore case
56*0Sstevel@tonic-gate 		 */
57*0Sstevel@tonic-gate 		flags = defcntl(DC_GETFLAGS, 0);
58*0Sstevel@tonic-gate 		TURNOFF(flags, DC_CASE);
59*0Sstevel@tonic-gate 		(void) defcntl(DC_SETFLAGS, flags);
60*0Sstevel@tonic-gate 
61*0Sstevel@tonic-gate 		if (cp = defread(DEFAULT_IP_LINE))
62*0Sstevel@tonic-gate 			*value = strdup(cp);
63*0Sstevel@tonic-gate 
64*0Sstevel@tonic-gate 		/* close */
65*0Sstevel@tonic-gate 		(void) defopen((char *)NULL);
66*0Sstevel@tonic-gate 
67*0Sstevel@tonic-gate 		if (*value != NULL) {
68*0Sstevel@tonic-gate 			if (strcasecmp(*value, "IP_VERSION4") == 0) {
69*0Sstevel@tonic-gate 				return (DEFAULT_PROT_V4_ONLY);
70*0Sstevel@tonic-gate 			} else if (strcasecmp(*value, "BOTH") == 0 ||
71*0Sstevel@tonic-gate 			    strcasecmp(*value, "IP_VERSION6") == 0) {
72*0Sstevel@tonic-gate 				return (DEFAULT_PROT_BOTH);
73*0Sstevel@tonic-gate 			} else {
74*0Sstevel@tonic-gate 				return (DEFAULT_PROT_BAD_VALUE);
75*0Sstevel@tonic-gate 			}
76*0Sstevel@tonic-gate 		}
77*0Sstevel@tonic-gate 	}
78*0Sstevel@tonic-gate 	/* No value set */
79*0Sstevel@tonic-gate 	return (DEFAULT_PROT_BOTH);
80*0Sstevel@tonic-gate }
81