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/* Update section header.
Copyright (C) 2000, 2001, 2002 Red Hat, Inc.
Written by Ulrich Drepper <drepper@redhat.com>, 2000.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2 as
published by the Free Software Foundation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <gelf.h>
#include <string.h>
#include "libelfP.h"
int
gelf_update_shdr (Elf_Scn *scn, GElf_Shdr *src)
{
int result = 0;
Elf *elf;
if (scn == NULL || src == NULL)
return 0;
elf = scn->elf;
rwlock_wrlock (elf->lock);
if (elf->class == ELFCLASS32)
{
Elf32_Shdr *shdr = scn->shdr.e32 ? scn->shdr.e32 : INTUSE(elf32_getshdr) (scn);
if (shdr == NULL)
{
__libelf_seterrno (ELF_E_INVALID_OPERAND);
goto out;
}
if (unlikely (src->sh_flags > 0xffffffffull)
|| unlikely (src->sh_addr > 0xffffffffull)
|| unlikely (src->sh_offset > 0xffffffffull)
|| unlikely (src->sh_size > 0xffffffffull)
|| unlikely (src->sh_addralign > 0xffffffffull)
|| unlikely (src->sh_entsize > 0xffffffffull))
{
__libelf_seterrno (ELF_E_INVALID_DATA);
goto out;
}
#define COPY(name) \
shdr->name = src->name
COPY (sh_name);
COPY (sh_type);
COPY (sh_flags);
COPY (sh_addr);
COPY (sh_offset);
COPY (sh_size);
COPY (sh_link);
COPY (sh_info);
COPY (sh_addralign);
COPY (sh_entsize);
}
else
{
Elf64_Shdr *shdr = scn->shdr.e64 ? scn->shdr.e64 : INTUSE(elf64_getshdr) (scn);
if (shdr == NULL)
{
__libelf_seterrno (ELF_E_INVALID_OPERAND);
goto out;
}
/* We only have to copy the data. */
(void) memcpy (shdr, src, sizeof (GElf_Shdr));
}
result = 1;
out:
rwlock_unlock (elf->lock);
return result;
}
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