/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*      Copyright (c) 1988 AT&T */
/*        All Rights Reserved   */


/*
 * Copyright (c) 1995 by Sun Microsystems, Inc.
 * All rights reserved.
 */

/*
 * Member handling
 *      Archive members have an ASCII header.  A Member structure
 *      holds internal information.  Because the ASCII file header
 *      may be clobbered, Member holds a private, safe copy.
 *      The ar_name member of m_hdr points at m_name except for string
 *      table names.  Ar_rawname in m_hdr always points at m_raw.
 *
 *      m_raw   The original ar_name with null termination.
 *              E.g., "name/           "
 *
 *      m_name  The processed name, with '/' terminator changed to '\0'.
 *              Unused for string table names.  E.g., "name\0           "
 *
 *      To improve performance of member lookup we allocate lists which
 *      contain MEMIDENTNO members:
 *
 *      ed_memlist -->   ---------------------
 *                      |       m_next        |
 *                      |       m_end         |
 *                      |       m_free        |
 *                      |---------------------|
 *                      | m_offset | m_member |
 *                      | m_offset | m_member |
 *                      |     "    |    "     |
 *                       ---------------------
 */


#define ARSZ(m)         (sizeof ((struct ar_hdr *)0)->m)

#define MEMIDENTNO      126

struct  Member
{
        Elf_Arhdr       m_hdr;
        int             m_err;
        long            m_slide;
        char            m_raw[ARSZ(ar_name)+1];
        char            m_name[ARSZ(ar_name)+1];
};

struct  Memident
{
        char *          m_offset;
        struct Member * m_member;
};

struct  Memlist
{
        struct Memlist *        m_next;
        struct Memident *       m_end;
        struct Memident *       m_free;
};