2N/A/*
2N/A * CDDL HEADER START
2N/A *
2N/A * The contents of this file are subject to the terms of the
2N/A * Common Development and Distribution License, Version 1.0 only
2N/A * (the "License"). You may not use this file except in compliance
2N/A * with the License.
2N/A *
2N/A * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
2N/A * or http://www.opensolaris.org/os/licensing.
2N/A * See the License for the specific language governing permissions
2N/A * and limitations under the License.
2N/A *
2N/A * When distributing Covered Code, include this CDDL HEADER in each
2N/A * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
2N/A * If applicable, add the following below this CDDL HEADER, with the
2N/A * fields enclosed by brackets "[]" replaced with your own identifying
2N/A * information: Portions Copyright [yyyy] [name of copyright owner]
2N/A *
2N/A * CDDL HEADER END
2N/A */
2N/A/*
2N/A * Copyright (c) 2000 by Sun Microsystems, Inc.
2N/A * All rights reserved.
2N/A */
2N/A
2N/A#ifndef _DHCPTAB_H
2N/A#define _DHCPTAB_H
2N/A
2N/A#pragma ident "%Z%%M% %I% %E% SMI"
2N/A
2N/A/*
2N/A * Implementation-specific data structures and constants for the binary
2N/A * dhcptab container. These structures are subject to change at any time.
2N/A */
2N/A
2N/A#ifdef __cplusplus
2N/Aextern "C" {
2N/A#endif
2N/A
2N/A#include <sys/types.h>
2N/A#include <dhcp_svc_public.h>
2N/A
2N/A#define DT_NOREC 0 /* "no record" id value */
2N/A#define DT_MAGIC 0x0d6c94ab /* "dhcptab" in a hexadecimal world */
2N/A
2N/A/*
2N/A * Constants for use with find_dt
2N/A */
2N/A#define FIND_PARTIAL 0x0001 /* allow partial success */
2N/A#define FIND_POSITION 0x0002 /* return dt_recpos_t's */
2N/A
2N/A/*
2N/A * Header atop the dhcptab container -- contains some basic information
2N/A * about the container for sanity-checking purposes.
2N/A */
2N/Atypedef struct dt_header {
2N/A unsigned char dth_version; /* container version */
2N/A unsigned char dth_align[3]; /* ensure binary compatibility */
2N/A uint32_t dth_magic; /* magic for sanity check */
2N/A uint32_t dth_pad[4]; /* for future use */
2N/A} dt_header_t;
2N/A
2N/A/*
2N/A * What each dt_rec_t looks like on-disk -- note that we cannot just write
2N/A * dt_rec_t's because the `dt_value' field can be arbitrarily large.
2N/A * Instead, write out the dt_rec_t structure followed by the variable-size
2N/A * `rec_dtval' array which will contain the current value of `dt_value'.
2N/A * Since `rec_dtval' is of variable size, we must explicitly keep track of
2N/A * its length via `rec_dtvalsize'.
2N/A */
2N/Atypedef struct dt_filerec {
2N/A dt_rec_t rec_dt; /* actual dt_rec_t */
2N/A uint32_t rec_dtvalsize; /* total size of rec_dtval */
2N/A char rec_dtval[1]; /* dt_value field from dt_rec_t */
2N/A} dt_filerec_t;
2N/A
2N/A/*
2N/A * Per-record state describing the underlying record, including its
2N/A * position on-disk; these are returned instead of dt_rec_t's when find_dt
2N/A * is called with FIND_POSITION set. Note that for this to work, the
2N/A * dt_rec_t must be the first member.
2N/A */
2N/Atypedef struct dt_recpos {
2N/A dt_rec_t dtp_rec; /* traditional dt_rec_t */
2N/A size_t dtp_size; /* its size in the file */
2N/A off_t dtp_off; /* its starting offset in the file */
2N/A} dt_recpos_t;
2N/A
2N/A/*
2N/A * Per-instance state for each handle returned from open_dt
2N/A */
2N/Atypedef struct dt_handle {
2N/A unsigned int dh_oflags; /* flags passed into open_dt */
2N/A char dh_location[MAXPATHLEN]; /* location of container */
2N/A} dt_handle_t;
2N/A
2N/A#ifdef __cplusplus
2N/A}
2N/A#endif
2N/A
2N/A#endif /* _DHCPTAB_H */
2N/A