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 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 60 elf_getphdrnum(Elf *e, size_t *phnum) 61 { 62 return (_libelf_getphdrnum(e, phnum)); 63 } 64 65 /* Deprecated API */ 66 int 67 elf_getphnum(Elf *e, size_t *phnum) 68 { 69 return (_libelf_getphdrnum(e, phnum) >= 0); 70 } 71