| /* |
| nextscn.c - implementation of the elf_nextscn(3) function. |
| Copyright (C) 1995 - 1998 Michael Riepe |
| |
| 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA |
| */ |
| |
| #include <private.h> |
| |
| #ifndef lint |
| static const char rcsid[] = "@(#) $Id: nextscn.c,v 1.7 2008/05/23 08:15:35 michael Exp $"; |
| #endif /* lint */ |
| |
| 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; |
| } |
