1 /* $NetBSD: elf_phnum.c,v 1.2 2014/03/09 16:58:04 christos Exp $ */
2
3 /*-
4 * Copyright (c) 2006,2008 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 <ar.h>
32 #include <libelf.h>
33
34 #include "_libelf.h"
35
36 __RCSID("$NetBSD: elf_phnum.c,v 1.2 2014/03/09 16:58:04 christos Exp $");
37 ELFTC_VCSID("Id: elf_phnum.c 2225 2011-11-26 18:55:54Z jkoshy ");
38
39 static int
_libelf_getphdrnum(Elf * e,size_t * phnum)40 _libelf_getphdrnum(Elf *e, size_t *phnum)
41 {
42 void *eh;
43 int ec;
44
45 if (e == NULL || e->e_kind != ELF_K_ELF ||
46 ((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64)) {
47 LIBELF_SET_ERROR(ARGUMENT, 0);
48 return (-1);
49 }
50
51 if ((eh = _libelf_ehdr(e, ec, 0)) == NULL)
52 return (-1);
53
54 *phnum = e->e_u.e_elf.e_nphdr;
55
56 return (0);
57 }
58
59 int
elf_getphdrnum(Elf * e,size_t * phnum)60 elf_getphdrnum(Elf *e, size_t *phnum)
61 {
62 return (_libelf_getphdrnum(e, phnum));
63 }
64
65 /* Deprecated API */
66 int
elf_getphnum(Elf * e,size_t * phnum)67 elf_getphnum(Elf *e, size_t *phnum)
68 {
69 return (_libelf_getphdrnum(e, phnum) >= 0);
70 }
71