1*5ac3bc71Schristos /* $NetBSD: elf_shstrndx.c,v 1.5 2024/03/03 17:37:33 christos Exp $ */
2e81373b4Schristos
39dd9d0cfSchristos /*-
49dd9d0cfSchristos * Copyright (c) 2006,2008 Joseph Koshy
59dd9d0cfSchristos * All rights reserved.
69dd9d0cfSchristos *
79dd9d0cfSchristos * Redistribution and use in source and binary forms, with or without
89dd9d0cfSchristos * modification, are permitted provided that the following conditions
99dd9d0cfSchristos * are met:
109dd9d0cfSchristos * 1. Redistributions of source code must retain the above copyright
119dd9d0cfSchristos * notice, this list of conditions and the following disclaimer.
129dd9d0cfSchristos * 2. Redistributions in binary form must reproduce the above copyright
139dd9d0cfSchristos * notice, this list of conditions and the following disclaimer in the
149dd9d0cfSchristos * documentation and/or other materials provided with the distribution.
159dd9d0cfSchristos *
169dd9d0cfSchristos * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
179dd9d0cfSchristos * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
189dd9d0cfSchristos * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
199dd9d0cfSchristos * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
209dd9d0cfSchristos * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
219dd9d0cfSchristos * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
229dd9d0cfSchristos * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
239dd9d0cfSchristos * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
249dd9d0cfSchristos * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
259dd9d0cfSchristos * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
269dd9d0cfSchristos * SUCH DAMAGE.
279dd9d0cfSchristos */
289dd9d0cfSchristos
29*5ac3bc71Schristos #include <sys/cdefs.h>
30*5ac3bc71Schristos
319dd9d0cfSchristos #include <ar.h>
329dd9d0cfSchristos #include <libelf.h>
339dd9d0cfSchristos
349dd9d0cfSchristos #include "_libelf.h"
359dd9d0cfSchristos
36*5ac3bc71Schristos __RCSID("$NetBSD: elf_shstrndx.c,v 1.5 2024/03/03 17:37:33 christos Exp $");
379dd9d0cfSchristos
389dd9d0cfSchristos static int
_libelf_getshdrstrndx(Elf * e,size_t * strndx)399dd9d0cfSchristos _libelf_getshdrstrndx(Elf *e, size_t *strndx)
409dd9d0cfSchristos {
419dd9d0cfSchristos void *eh;
429dd9d0cfSchristos int ec;
439dd9d0cfSchristos
449dd9d0cfSchristos if (e == NULL || e->e_kind != ELF_K_ELF ||
459dd9d0cfSchristos ((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64)) {
469dd9d0cfSchristos LIBELF_SET_ERROR(ARGUMENT, 0);
479dd9d0cfSchristos return (-1);
489dd9d0cfSchristos }
499dd9d0cfSchristos
509dd9d0cfSchristos if ((eh = _libelf_ehdr(e, ec, 0)) == NULL)
519dd9d0cfSchristos return (-1);
529dd9d0cfSchristos
539dd9d0cfSchristos *strndx = e->e_u.e_elf.e_strndx;
549dd9d0cfSchristos
559dd9d0cfSchristos return (0);
569dd9d0cfSchristos }
579dd9d0cfSchristos
589dd9d0cfSchristos int
elf_getshdrstrndx(Elf * e,size_t * strndx)599dd9d0cfSchristos elf_getshdrstrndx(Elf *e, size_t *strndx)
609dd9d0cfSchristos {
619dd9d0cfSchristos return (_libelf_getshdrstrndx(e, strndx));
629dd9d0cfSchristos }
639dd9d0cfSchristos
649dd9d0cfSchristos int
elf_getshstrndx(Elf * e,size_t * strndx)659dd9d0cfSchristos elf_getshstrndx(Elf *e, size_t *strndx) /* Deprecated API. */
669dd9d0cfSchristos {
679dd9d0cfSchristos return (_libelf_getshdrstrndx(e, strndx) >= 0);
689dd9d0cfSchristos }
699dd9d0cfSchristos
709dd9d0cfSchristos int
elf_setshstrndx(Elf * e,size_t strndx)719dd9d0cfSchristos elf_setshstrndx(Elf *e, size_t strndx)
729dd9d0cfSchristos {
739dd9d0cfSchristos void *eh;
749dd9d0cfSchristos int ec;
759dd9d0cfSchristos
769dd9d0cfSchristos if (e == NULL || e->e_kind != ELF_K_ELF ||
779dd9d0cfSchristos ((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64) ||
789dd9d0cfSchristos ((eh = _libelf_ehdr(e, ec, 0)) == NULL)) {
799dd9d0cfSchristos LIBELF_SET_ERROR(ARGUMENT, 0);
809dd9d0cfSchristos return (0);
819dd9d0cfSchristos }
829dd9d0cfSchristos
839dd9d0cfSchristos return (_libelf_setshstrndx(e, eh, ec, strndx));
849dd9d0cfSchristos }
85