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      1 /*-
      2  * Copyright (c) 1991, 1993
      3  *	The Regents of the University of California.  All rights reserved.
      4  * (c) UNIX System Laboratories, Inc.
      5  * All or some portions of this file are derived from material licensed
      6  * to the University of California by American Telephone and Telegraph
      7  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
      8  * the permission of UNIX System Laboratories, Inc.
      9  *
     10  * This code is derived from software contributed to Berkeley by
     11  * Hugh Smith at The University of Guelph.
     12  *
     13  * Redistribution and use in source and binary forms, with or without
     14  * modification, are permitted provided that the following conditions
     15  * are met:
     16  * 1. Redistributions of source code must retain the above copyright
     17  *    notice, this list of conditions and the following disclaimer.
     18  * 2. Redistributions in binary form must reproduce the above copyright
     19  *    notice, this list of conditions and the following disclaimer in the
     20  *    documentation and/or other materials provided with the distribution.
     21  * 3. Neither the name of the University nor the names of its contributors
     22  *    may be used to endorse or promote products derived from this software
     23  *    without specific prior written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     35  * SUCH DAMAGE.
     36  *
     37  *	@(#)ar.h	8.2 (Berkeley) 1/21/94
     38  */
     39 
     40 #pragma once
     41 
     42 /**
     43  * @file ar.h
     44  * @brief Constants for reading/writing `.a` files.
     45  */
     46 
     47 #include <sys/cdefs.h>
     48 
     49 /** The magic at the beginning of a `.a` file. */
     50 #define ARMAG  "!<arch>\n"
     51 /** The length of the magic at the beginning of a `.a` file. */
     52 #define SARMAG  8
     53 
     54 /** The contents of every `ar_hdr::ar_fmag` field.*/
     55 #define	ARFMAG	"`\n"
     56 
     57 struct ar_hdr {
     58   /* Name. */
     59   char ar_name[16];
     60   /* Modification time. */
     61   char ar_date[12];
     62   /** User id. */
     63   char ar_uid[6];
     64   /** Group id. */
     65   char ar_gid[6];
     66   /** Octal file permissions. */
     67   char ar_mode[8];
     68   /** Size in bytes. */
     69   char ar_size[10];
     70   /** Consistency check. Always contains `ARFMAG`. */
     71   char ar_fmag[2];
     72 };
     73