xref: /onnv-gate/usr/src/cmd/cmd-inet/usr.sadm/dhcpmgr/lib/dd_opt.h (revision 0:68f95e015346)
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 (c) 1998-1999 by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 #ifndef _DD_OPT_H
28 #define	_DD_OPT_H
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 #include <sys/types.h>
33 
34 #ifdef	__cplusplus
35 extern "C" {
36 #endif
37 
38 /* The different data types of options supported by the service */
39 enum option_type {
40 	ERROR_OPTION = -1,
41 	ASCII_OPTION,
42 	BOOLEAN_OPTION,
43 	IP_OPTION,
44 	NUMBER_OPTION,
45 	OCTET_OPTION
46 };
47 
48 /* Structure returned by dd_getopt */
49 struct dhcp_option {
50 	int error_code;		/* Error indication; 0 == no error */
51 	union {
52 		char *msg;	/* Error message if error_code != 0 */
53 		struct {
54 			enum option_type datatype;	/* Type of option */
55 			ushort_t granularity;		/* How big is it */
56 			ushort_t count;			/* How many */
57 			union {	/* The data, depending on datatype */
58 				char **strings;
59 				boolean_t value;
60 				struct in_addr **addrs;
61 				int64_t *numbers;
62 				uchar_t **octets;
63 			} data;
64 		} ret;
65 	} u;
66 };
67 
68 extern struct dhcp_option *dd_getopt(ushort_t, const char *, const char *);
69 extern void dd_freeopt(struct dhcp_option *);
70 
71 #ifdef	__cplusplus
72 }
73 #endif
74 
75 #endif	/* !_DD_OPT_H */
76