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/*-
* Copyright (c) 2006 Joseph Koshy
* All rights reserved.
*
* 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 <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <ar.h>
#include <assert.h>
#include <libelf.h>
#include "_libelf.h"
char *
elf_getident(Elf *e, size_t *sz)
{
if (e == NULL) {
LIBELF_SET_ERROR(ARGUMENT, 0);
goto error;
}
if (e->e_cmd == ELF_C_WRITE && e->e_rawfile == NULL) {
LIBELF_SET_ERROR(SEQUENCE, 0);
goto error;
}
assert(e->e_kind != ELF_K_AR || e->e_cmd == ELF_C_READ);
if (sz) {
if (e->e_kind == ELF_K_AR)
*sz = SARMAG;
else if (e->e_kind == ELF_K_ELF)
*sz = EI_NIDENT;
else
*sz = e->e_rawsize;
}
return (e->e_rawfile);
error:
if (sz)
*sz = 0;
return (NULL);
}
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