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55 lines
1.6 KiB
C
55 lines
1.6 KiB
C
/*
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nextscn.c - implementation of the elf_nextscn(3) function.
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Copyright (C) 1995 - 1998 Michael Riepe
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <private.h>
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#ifndef lint
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static const char rcsid[] = "@(#) $Id: nextscn.c,v 1.7 2008/05/23 08:15:35 michael Exp $";
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#endif /* lint */
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Elf_Scn*
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elf_nextscn(Elf *elf, Elf_Scn *scn) {
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if (!elf) {
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return NULL;
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}
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elf_assert(elf->e_magic == ELF_MAGIC);
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if (scn) {
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elf_assert(scn->s_magic == SCN_MAGIC);
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if (scn->s_elf == elf) {
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return scn->s_link;
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}
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seterr(ERROR_ELFSCNMISMATCH);
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}
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else if (elf->e_kind != ELF_K_ELF) {
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seterr(ERROR_NOTELF);
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}
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else if (elf->e_ehdr || _elf_cook(elf)) {
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elf_assert(elf->e_ehdr);
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for (scn = elf->e_scn_1; scn; scn = scn->s_link) {
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elf_assert(scn->s_magic == SCN_MAGIC);
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elf_assert(scn->s_elf == elf);
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if (scn->s_index == 1) {
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return scn;
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}
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}
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seterr(ERROR_NOSUCHSCN);
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}
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return NULL;
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}
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