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      1 /*	$NetBSD: elf_getarhdr.c,v 1.7 2026/05/17 21:40:49 jkoshy Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2006,2008,2010 Joseph Koshy
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/cdefs.h>
     30 
     31 #include <libelf.h>
     32 
     33 #include "_libelf.h"
     34 
     35 ELFTC_VCSID("Id: elf_getarhdr.c 3977 2022-05-01 06:45:34Z jkoshy");
     36 
     37 __RCSID("$NetBSD: elf_getarhdr.c,v 1.7 2026/05/17 21:40:49 jkoshy Exp $");
     38 
     39 Elf_Arhdr *
     40 elf_getarhdr(Elf *e)
     41 {
     42 	if (e == NULL) {
     43 		LIBELF_SET_ERROR(ARGUMENT, 0);
     44 		return (NULL);
     45 	}
     46 
     47 	if (e->e_flags & LIBELF_F_AR_HEADER)
     48 		return (e->e_hdr.e_arhdr);
     49 
     50 	return (_libelf_ar_gethdr(e));
     51 }
     52