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 <ar.h> 30 #include <libelf.h> 31 32 #include "_libelf.h" 33 34 ELFTC_VCSID("$Id: elf_shstrndx.c 2225 2011-11-26 18:55:54Z jkoshy $"); 35 36 static int 37 _libelf_getshdrstrndx(Elf *e, size_t *strndx) 38 { 39 void *eh; 40 int ec; 41 42 if (e == NULL || e->e_kind != ELF_K_ELF || 43 ((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64)) { 44 LIBELF_SET_ERROR(ARGUMENT, 0); 45 return (-1); 46 } 47 48 if ((eh = _libelf_ehdr(e, ec, 0)) == NULL) 49 return (-1); 50 51 *strndx = e->e_u.e_elf.e_strndx; 52 53 return (0); 54 } 55 56 int 57 elf_getshdrstrndx(Elf *e, size_t *strndx) 58 { 59 return (_libelf_getshdrstrndx(e, strndx)); 60 } 61 62 int 63 elf_getshstrndx(Elf *e, size_t *strndx) /* Deprecated API. */ 64 { 65 return (_libelf_getshdrstrndx(e, strndx) >= 0); 66 } 67 68 int 69 elf_setshstrndx(Elf *e, size_t strndx) 70 { 71 void *eh; 72 int ec; 73 74 if (e == NULL || e->e_kind != ELF_K_ELF || 75 ((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64) || 76 ((eh = _libelf_ehdr(e, ec, 0)) == NULL)) { 77 LIBELF_SET_ERROR(ARGUMENT, 0); 78 return (0); 79 } 80 81 return (_libelf_setshstrndx(e, eh, ec, strndx)); 82 } 83