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elfutils
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libelf/elf_getaroff.c
53 строки
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Mark Wielaard
libelf: Fix some 32bit offset/size issues that break updating 4G+ files.
29 июн 2019, 00:14
29 июн 2019, 00:14
a46200f
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/* Return offset in archive for current file ELF. Copyright (C) 2005, 2008, 2015 Red Hat, Inc. This file is part of elfutils. Contributed by Ulrich Drepper <drepper@redhat.com>, 2005. This file is free software; you can redistribute it and/or modify it under the terms of either * the GNU Lesser General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version or * the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version or both in parallel, as here. elfutils 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 copies of the GNU General Public License and the GNU Lesser General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ #ifdef HAVE_CONFIG_H # include <config.h> #endif #include <assert.h> #include <libelf.h> #include <stddef.h> #include "libelfP.h" int64_t elf_getaroff (Elf *elf) { /* Be gratious, the specs demand it. */ if (elf == NULL || elf->parent == NULL) return ELF_C_NULL; /* We can be sure the parent is an archive. */ Elf *parent = elf->parent; assert (parent->kind == ELF_K_AR); return elf->start_offset - sizeof (struct ar_hdr) - parent->start_offset; }