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/*	Copyright (c) 1988 AT&T	*/
23/*	  All Rights Reserved  	*/
24
25
26/*
27 * Copyright (c) 1995 by Sun Microsystems, Inc.
28 * All rights reserved.
29 */
30
31#pragma ident	"@(#)member.h	1.9	05/06/08 SMI" 	/* SVr4.0 1.2	*/
32
33
34
35/*
36 * Member handling
37 *	Archive members have an ASCII header.  A Member structure
38 *	holds internal information.  Because the ASCII file header
39 *	may be clobbered, Member holds a private, safe copy.
40 *	The ar_name member of m_hdr points at m_name except for string
41 *	table names.  Ar_rawname in m_hdr always points at m_raw.
42 *
43 *	m_raw	The original ar_name with null termination.
44 *		E.g., "name/           "
45 *
46 *	m_name	The processed name, with '/' terminator changed to '\0'.
47 *		Unused for string table names.  E.g., "name\0           "
48 *
49 *	To improve performance of member lookup we allocate lists which
50 * 	contain MEMIDENTNO members:
51 *
52 *	ed_memlist -->   ---------------------
53 *			|       m_next        |
54 *			|       m_end         |
55 *			|       m_free        |
56 *			|---------------------|
57 *			| m_offset | m_member |
58 *			| m_offset | m_member |
59 *			|     "    |    "     |
60 *			 ---------------------
61 */
62
63
64#define	ARSZ(m)		(sizeof ((struct ar_hdr *)0)->m)
65
66#define	MEMIDENTNO	126
67
68struct	Member
69{
70	Elf_Arhdr	m_hdr;
71	int		m_err;
72	long		m_slide;
73	char		m_raw[ARSZ(ar_name)+1];
74	char		m_name[ARSZ(ar_name)+1];
75};
76
77struct	Memident
78{
79	char *		m_offset;
80	struct Member *	m_member;
81};
82
83struct	Memlist
84{
85	struct Memlist *	m_next;
86	struct Memident *	m_end;
87	struct Memident *	m_free;
88};
89