62 lines
2.0 KiB
C
62 lines
2.0 KiB
C
/*-
|
|
* Copyright (c) 2006,2008 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>
|
|
|
|
#include <ar.h>
|
|
#include <assert.h>
|
|
#include <libelf.h>
|
|
|
|
#include "_libelf.h"
|
|
|
|
LIBELF_VCSID("$Id$");
|
|
|
|
Elf_Cmd
|
|
elf_next(Elf *e)
|
|
{
|
|
off_t next;
|
|
Elf *parent;
|
|
|
|
if (e == NULL)
|
|
return (ELF_C_NULL);
|
|
|
|
if ((parent = e->e_parent) == NULL) {
|
|
LIBELF_SET_ERROR(ARGUMENT, 0);
|
|
return (ELF_C_NULL);
|
|
}
|
|
|
|
assert (parent->e_kind == ELF_K_AR);
|
|
assert (parent->e_cmd == ELF_C_READ);
|
|
assert(e->e_rawfile > parent->e_rawfile);
|
|
|
|
next = e->e_rawfile - parent->e_rawfile + e->e_rawsize;
|
|
next = (next + 1) & ~1; /* round up to an even boundary */
|
|
|
|
parent->e_u.e_ar.e_next = (next >= (off_t) parent->e_rawsize) ? (off_t) 0 : next;
|
|
|
|
return (ELF_C_READ);
|
|
}
|