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 <ar.h> 28 #include <libelf.h> 29 30 #include "_libelf.h" 31 32 ELFTC_VCSID("$Id: elf_shnum.c 3174 2015-03-27 17:13:41Z emaste $"); 33 34 static int 35 _libelf_getshdrnum(Elf *e, size_t *shnum) 36 { 37 void *eh; 38 int ec; 39 40 if (e == NULL || e->e_kind != ELF_K_ELF || 41 ((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64)) { 42 LIBELF_SET_ERROR(ARGUMENT, 0); 43 return (-1); 44 } 45 46 if ((eh = _libelf_ehdr(e, ec, 0)) == NULL) 47 return (-1); 48 49 *shnum = e->e_u.e_elf.e_nscn; 50 51 return (0); 52 } 53 54 int 55 elf_getshdrnum(Elf *e, size_t *shnum) 56 { 57 return (_libelf_getshdrnum(e, shnum)); 58 } 59 60 /* Deprecated API. */ 61 int 62 elf_getshnum(Elf *e, size_t *shnum) 63 { 64 return (_libelf_getshdrnum(e, shnum) >= 0); 65 } 66