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104 lines
2.3 KiB
C
104 lines
2.3 KiB
C
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/* Return section header.
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Copyright (C) 1998, 1999, 2000, 2002, 2015 Red Hat, Inc.
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This file is part of elfutils.
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Written by Ulrich Drepper <drepper@redhat.com>, 1998.
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This file is free software; you can redistribute it and/or modify
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it under the terms of either
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* the GNU Lesser General Public License as published by the Free
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Software Foundation; either version 3 of the License, or (at
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your option) any later version
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or
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* the GNU General Public License as published by the Free
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Software Foundation; either version 2 of the License, or (at
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your option) any later version
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or both in parallel, as here.
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elfutils is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received copies of the GNU General Public License and
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the GNU Lesser General Public License along with this program. If
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not, see <http://www.gnu.org/licenses/>. */
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <gelf.h>
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#include <string.h>
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#include "libelfP.h"
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GElf_Shdr *
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gelf_getshdr (Elf_Scn *scn, GElf_Shdr *dst)
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{
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GElf_Shdr *result = NULL;
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if (scn == NULL)
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return NULL;
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if (dst == NULL)
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{
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__libelf_seterrno (ELF_E_INVALID_OPERAND);
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return NULL;
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}
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rwlock_rdlock (scn->elf->lock);
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if (scn->elf->class == ELFCLASS32)
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{
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/* Copy the elements one-by-one. */
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Elf32_Shdr *shdr
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= scn->shdr.e32 ?: __elf32_getshdr_rdlock (scn);
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if (shdr == NULL)
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{
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__libelf_seterrno (ELF_E_INVALID_OPERAND);
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goto out;
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}
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#define COPY(name) \
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dst->name = shdr->name
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COPY (sh_name);
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COPY (sh_type);
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COPY (sh_flags);
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COPY (sh_addr);
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COPY (sh_offset);
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COPY (sh_size);
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COPY (sh_link);
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COPY (sh_info);
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COPY (sh_addralign);
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COPY (sh_entsize);
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result = dst;
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}
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else
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{
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Elf64_Shdr *shdr
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= scn->shdr.e64 ?: __elf64_getshdr_rdlock (scn);
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if (shdr == NULL)
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{
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__libelf_seterrno (ELF_E_INVALID_OPERAND);
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goto out;
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}
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/* We only have to copy the data. */
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result = memcpy (dst, shdr, sizeof (GElf_Shdr));
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}
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out:
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rwlock_unlock (scn->elf->lock);
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return result;
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}
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INTDEF(gelf_getshdr)
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