1*a1b5ec25Sjsg /*-
2*a1b5ec25Sjsg * Copyright (c) 2006,2008 Joseph Koshy
3*a1b5ec25Sjsg * All rights reserved.
4*a1b5ec25Sjsg *
5*a1b5ec25Sjsg * Redistribution and use in source and binary forms, with or without
6*a1b5ec25Sjsg * modification, are permitted provided that the following conditions
7*a1b5ec25Sjsg * are met:
8*a1b5ec25Sjsg * 1. Redistributions of source code must retain the above copyright
9*a1b5ec25Sjsg * notice, this list of conditions and the following disclaimer.
10*a1b5ec25Sjsg * 2. Redistributions in binary form must reproduce the above copyright
11*a1b5ec25Sjsg * notice, this list of conditions and the following disclaimer in the
12*a1b5ec25Sjsg * documentation and/or other materials provided with the distribution.
13*a1b5ec25Sjsg *
14*a1b5ec25Sjsg * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15*a1b5ec25Sjsg * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16*a1b5ec25Sjsg * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17*a1b5ec25Sjsg * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18*a1b5ec25Sjsg * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19*a1b5ec25Sjsg * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20*a1b5ec25Sjsg * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21*a1b5ec25Sjsg * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22*a1b5ec25Sjsg * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23*a1b5ec25Sjsg * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24*a1b5ec25Sjsg * SUCH DAMAGE.
25*a1b5ec25Sjsg */
26*a1b5ec25Sjsg
27*a1b5ec25Sjsg #include <stdint.h>
28*a1b5ec25Sjsg #include <libelf.h>
29*a1b5ec25Sjsg
30*a1b5ec25Sjsg #include "_libelf.h"
31*a1b5ec25Sjsg
32*a1b5ec25Sjsg ELFTC_VCSID("$Id: elf_getbase.c,v 1.1 2019/02/01 05:27:37 jsg Exp $");
33*a1b5ec25Sjsg
34*a1b5ec25Sjsg off_t
elf_getbase(Elf * e)35*a1b5ec25Sjsg elf_getbase(Elf *e)
36*a1b5ec25Sjsg {
37*a1b5ec25Sjsg if (e == NULL) {
38*a1b5ec25Sjsg LIBELF_SET_ERROR(ARGUMENT, 0);
39*a1b5ec25Sjsg return ((off_t) -1);
40*a1b5ec25Sjsg }
41*a1b5ec25Sjsg
42*a1b5ec25Sjsg if (e->e_parent == NULL)
43*a1b5ec25Sjsg return ((off_t) 0);
44*a1b5ec25Sjsg
45*a1b5ec25Sjsg return ((off_t) ((uintptr_t) e->e_rawfile -
46*a1b5ec25Sjsg (uintptr_t) e->e_parent->e_rawfile));
47*a1b5ec25Sjsg }
48