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- /*
- nextscn.c - implementation of the elf_nextscn(3) function.
- Copyright (C) 1995 Michael Riepe <riepe@ifwsn4.ifw.uni-hannover.de>
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
-
- This library 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
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with this library; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
- #include <private.h>
-
- Elf_Scn*
- elf_nextscn(Elf *elf, Elf_Scn *scn) {
- if (!elf) {
- return NULL;
- }
- elf_assert(elf->e_magic == ELF_MAGIC);
- if (scn) {
- elf_assert(scn->s_magic == SCN_MAGIC);
- if (scn->s_elf == elf) {
- return scn->s_link;
- }
- seterr(ERROR_ELFSCNMISMATCH);
- }
- else if (elf->e_kind != ELF_K_ELF) {
- seterr(ERROR_NOTELF);
- }
- else if (elf->e_ehdr || _elf_cook(elf)) {
- elf_assert(elf->e_ehdr);
- for (scn = elf->e_scn_1; scn; scn = scn->s_link) {
- elf_assert(scn->s_magic == SCN_MAGIC);
- elf_assert(scn->s_elf == elf);
- if (scn->s_index == 1) {
- return scn;
- }
- }
- seterr(ERROR_NOSUCHSCN);
- }
- return NULL;
- }
-