2ad65fcc6a
as `packed'. The C standard leaves the alignment of individual members of a C struct upto the implementation, so pedantically speaking portable code cannot assume that the layout of a `struct ar_hdr' in memory will match its layout in a file. Using a __packed attribute declaration forces file and memory layouts for this structure to match. Submitted by: ru
72 lines
2.9 KiB
C
72 lines
2.9 KiB
C
/*-
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* Copyright (c) 1991, 1993
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* The Regents of the University of California. All rights reserved.
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* (c) UNIX System Laboratories, Inc.
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* All or some portions of this file are derived from material licensed
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* to the University of California by American Telephone and Telegraph
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* Co. or Unix System Laboratories, Inc. and are reproduced herein with
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* the permission of UNIX System Laboratories, Inc.
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*
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* This code is derived from software contributed to Berkeley by
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* Hugh Smith at The University of Guelph.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)ar.h 8.2 (Berkeley) 1/21/94
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*
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* $FreeBSD$
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*/
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#ifndef _AR_H_
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#define _AR_H_
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#include <sys/cdefs.h>
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/* Pre-4BSD archives had these magic numbers in them. */
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#define OARMAG1 0177555
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#define OARMAG2 0177545
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#define ARMAG "!<arch>\n" /* ar "magic number" */
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#define SARMAG 8 /* strlen(ARMAG); */
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#define AR_EFMT1 "#1/" /* extended format #1 */
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struct ar_hdr {
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char ar_name[16]; /* name */
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char ar_date[12]; /* modification time */
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char ar_uid[6]; /* user id */
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char ar_gid[6]; /* group id */
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char ar_mode[8]; /* octal file permissions */
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char ar_size[10]; /* size in bytes */
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#define ARFMAG "`\n"
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char ar_fmag[2]; /* consistency check */
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} __packed;
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#endif /* !_AR_H_ */
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