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 */