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/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2020 The FreeBSD Foundation
*
* This software was developed by Tiger Gao under sponsorship from
* the FreeBSD Foundation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <assert.h>
#include <gelf.h>
#include <libelf.h>
#include <limits.h>
#include <stdint.h>
#include "_libelf.h"
Elf32_Chdr *
elf32_getchdr(Elf_Scn *s)
{
return (_libelf_getchdr(s, ELFCLASS32));
}
Elf64_Chdr *
elf64_getchdr(Elf_Scn *s)
{
return (_libelf_getchdr(s, ELFCLASS64));
}
GElf_Chdr *
gelf_getchdr(Elf_Scn *s, GElf_Chdr *d)
{
int ec;
void *ch;
Elf32_Chdr *ch32;
Elf64_Chdr *ch64;
if (d == NULL) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
if ((ch = _libelf_getchdr(s, ELFCLASSNONE)) == NULL)
return (NULL);
ec = s->s_elf->e_class;
assert(ec == ELFCLASS32 || ec == ELFCLASS64);
if (ec == ELFCLASS32) {
ch32 = (Elf32_Chdr *)ch;
d->ch_type = (Elf64_Word)ch32->ch_type;
d->ch_size = (Elf64_Xword)ch32->ch_size;
d->ch_addralign = (Elf64_Xword)ch32->ch_addralign;
} else {
ch64 = (Elf64_Chdr *)ch;
*d = *ch64;
}
return (d);
}
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