1 /* $NetBSD: elf_shstrndx.c,v 1.5 2024/03/03 17:37:33 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_shstrndx.c,v 1.5 2024/03/03 17:37:33 christos Exp $"); 37 38 static int 39 _libelf_getshdrstrndx(Elf *e, size_t *strndx) 40 { 41 void *eh; 42 int ec; 43 44 if (e == NULL || e->e_kind != ELF_K_ELF || 45 ((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64)) { 46 LIBELF_SET_ERROR(ARGUMENT, 0); 47 return (-1); 48 } 49 50 if ((eh = _libelf_ehdr(e, ec, 0)) == NULL) 51 return (-1); 52 53 *strndx = e->e_u.e_elf.e_strndx; 54 55 return (0); 56 } 57 58 int 59 elf_getshdrstrndx(Elf *e, size_t *strndx) 60 { 61 return (_libelf_getshdrstrndx(e, strndx)); 62 } 63 64 int 65 elf_getshstrndx(Elf *e, size_t *strndx) /* Deprecated API. */ 66 { 67 return (_libelf_getshdrstrndx(e, strndx) >= 0); 68 } 69 70 int 71 elf_setshstrndx(Elf *e, size_t strndx) 72 { 73 void *eh; 74 int ec; 75 76 if (e == NULL || e->e_kind != ELF_K_ELF || 77 ((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64) || 78 ((eh = _libelf_ehdr(e, ec, 0)) == NULL)) { 79 LIBELF_SET_ERROR(ARGUMENT, 0); 80 return (0); 81 } 82 83 return (_libelf_setshstrndx(e, eh, ec, strndx)); 84 } 85