1*0a6a1f1dSLionel Sambuc /* $NetBSD: elf_shnum.c,v 1.2 2014/03/09 16:58:04 christos Exp $ */
2*0a6a1f1dSLionel Sambuc
3*0a6a1f1dSLionel Sambuc /*-
4*0a6a1f1dSLionel Sambuc * Copyright (c) 2006,2008 Joseph Koshy
5*0a6a1f1dSLionel Sambuc * All rights reserved.
6*0a6a1f1dSLionel Sambuc *
7*0a6a1f1dSLionel Sambuc * Redistribution and use in source and binary forms, with or without
8*0a6a1f1dSLionel Sambuc * modification, are permitted provided that the following conditions
9*0a6a1f1dSLionel Sambuc * are met:
10*0a6a1f1dSLionel Sambuc * 1. Redistributions of source code must retain the above copyright
11*0a6a1f1dSLionel Sambuc * notice, this list of conditions and the following disclaimer.
12*0a6a1f1dSLionel Sambuc * 2. Redistributions in binary form must reproduce the above copyright
13*0a6a1f1dSLionel Sambuc * notice, this list of conditions and the following disclaimer in the
14*0a6a1f1dSLionel Sambuc * documentation and/or other materials provided with the distribution.
15*0a6a1f1dSLionel Sambuc *
16*0a6a1f1dSLionel Sambuc * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17*0a6a1f1dSLionel Sambuc * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18*0a6a1f1dSLionel Sambuc * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19*0a6a1f1dSLionel Sambuc * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20*0a6a1f1dSLionel Sambuc * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21*0a6a1f1dSLionel Sambuc * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22*0a6a1f1dSLionel Sambuc * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23*0a6a1f1dSLionel Sambuc * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24*0a6a1f1dSLionel Sambuc * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25*0a6a1f1dSLionel Sambuc * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26*0a6a1f1dSLionel Sambuc * SUCH DAMAGE.
27*0a6a1f1dSLionel Sambuc */
28*0a6a1f1dSLionel Sambuc
29*0a6a1f1dSLionel Sambuc #include <sys/cdefs.h>
30*0a6a1f1dSLionel Sambuc
31*0a6a1f1dSLionel Sambuc #include <ar.h>
32*0a6a1f1dSLionel Sambuc #include <libelf.h>
33*0a6a1f1dSLionel Sambuc
34*0a6a1f1dSLionel Sambuc #include "_libelf.h"
35*0a6a1f1dSLionel Sambuc
36*0a6a1f1dSLionel Sambuc __RCSID("$NetBSD: elf_shnum.c,v 1.2 2014/03/09 16:58:04 christos Exp $");
37*0a6a1f1dSLionel Sambuc ELFTC_VCSID("Id: elf_shnum.c 2225 2011-11-26 18:55:54Z jkoshy ");
38*0a6a1f1dSLionel Sambuc
39*0a6a1f1dSLionel Sambuc static int
_libelf_getshdrnum(Elf * e,size_t * shnum)40*0a6a1f1dSLionel Sambuc _libelf_getshdrnum(Elf *e, size_t *shnum)
41*0a6a1f1dSLionel Sambuc {
42*0a6a1f1dSLionel Sambuc void *eh;
43*0a6a1f1dSLionel Sambuc int ec;
44*0a6a1f1dSLionel Sambuc
45*0a6a1f1dSLionel Sambuc if (e == NULL || e->e_kind != ELF_K_ELF ||
46*0a6a1f1dSLionel Sambuc ((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64)) {
47*0a6a1f1dSLionel Sambuc LIBELF_SET_ERROR(ARGUMENT, 0);
48*0a6a1f1dSLionel Sambuc return (-1);
49*0a6a1f1dSLionel Sambuc }
50*0a6a1f1dSLionel Sambuc
51*0a6a1f1dSLionel Sambuc if ((eh = _libelf_ehdr(e, ec, 0)) == NULL)
52*0a6a1f1dSLionel Sambuc return (-1);
53*0a6a1f1dSLionel Sambuc
54*0a6a1f1dSLionel Sambuc *shnum = e->e_u.e_elf.e_nscn;
55*0a6a1f1dSLionel Sambuc
56*0a6a1f1dSLionel Sambuc return (0);
57*0a6a1f1dSLionel Sambuc }
58*0a6a1f1dSLionel Sambuc
59*0a6a1f1dSLionel Sambuc int
elf_getshdrnum(Elf * e,size_t * shnum)60*0a6a1f1dSLionel Sambuc elf_getshdrnum(Elf *e, size_t *shnum)
61*0a6a1f1dSLionel Sambuc {
62*0a6a1f1dSLionel Sambuc return (_libelf_getshdrnum(e, shnum));
63*0a6a1f1dSLionel Sambuc }
64*0a6a1f1dSLionel Sambuc
65*0a6a1f1dSLionel Sambuc /* Deprecated API. */
66*0a6a1f1dSLionel Sambuc int
elf_getshnum(Elf * e,size_t * shnum)67*0a6a1f1dSLionel Sambuc elf_getshnum(Elf *e, size_t *shnum)
68*0a6a1f1dSLionel Sambuc {
69*0a6a1f1dSLionel Sambuc return (_libelf_getshdrnum(e, shnum) >= 0);
70*0a6a1f1dSLionel Sambuc }
71