1  /*-
 2   * Copyright (c) 2006,2008 Joseph Koshy
 3   * All rights reserved.
 4   *
 5   * Redistribution and use in source and binary forms, with or without
 6   * modification, are permitted provided that the following conditions
 7   * are met:
 8   * 1. Redistributions of source code must retain the above copyright
 9   *    notice, this list of conditions and the following disclaimer.
10   * 2. Redistributions in binary form must reproduce the above copyright
11   *    notice, this list of conditions and the following disclaimer in the
12   *    documentation and/or other materials provided with the distribution.
13   *
14   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17   * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24   * SUCH DAMAGE.
25   */
26  
27  #include <sys/cdefs.h>
28  
29  #include <libelf.h>
30  
31  #include "_libelf.h"
32  
33  ELFTC_VCSID("$Id$");
34  
35  Elf_Arsym *
36  elf_getarsym(Elf *ar, size_t *ptr)
37  {
38  	size_t n;
39  	Elf_Arsym *symtab;
40  
41  	n = 0;
42  	symtab = NULL;
43  
44  	if (ar == NULL || ar->e_kind != ELF_K_AR)
45  		LIBELF_SET_ERROR(ARGUMENT, 0);
46  	else if ((symtab = ar->e_u.e_ar.e_symtab) != NULL)
47  		n = ar->e_u.e_ar.e_symtabsz;
48  	else if (ar->e_u.e_ar.e_rawsymtab)
49  		symtab = (ar->e_flags & LIBELF_F_AR_VARIANT_SVR4) ?
50  		    _libelf_ar_process_svr4_symtab(ar, &n) :
51  		    _libelf_ar_process_bsd_symtab(ar, &n);
52  	else
53  		LIBELF_SET_ERROR(ARCHIVE, 0);
54  
55  	if (ptr)
56  		*ptr = n;
57  	return (symtab);
58  }