Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame^] | 1 | /* Read header of next archive member. |
| 2 | Copyright (C) 1998, 1999, 2000, 2002 Red Hat, Inc. |
| 3 | Written by Ulrich Drepper <drepper@redhat.com>, 1998. |
| 4 | |
| 5 | This program is free software; you can redistribute it and/or modify |
| 6 | it under the terms of the GNU General Public License as published by |
| 7 | the Free Software Foundation, version 2. |
| 8 | |
| 9 | This program is distributed in the hope that it will be useful, |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | GNU General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU General Public License |
| 15 | along with this program; if not, write to the Free Software Foundation, |
| 16 | Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 17 | |
| 18 | #ifdef HAVE_CONFIG_H |
| 19 | # include <config.h> |
| 20 | #endif |
| 21 | |
| 22 | #include <assert.h> |
| 23 | #include <libelf.h> |
| 24 | #include <stddef.h> |
| 25 | |
| 26 | #include "libelfP.h" |
| 27 | |
| 28 | |
| 29 | Elf_Arhdr * |
| 30 | elf_getarhdr (elf) |
| 31 | Elf *elf; |
| 32 | { |
| 33 | Elf *parent = elf->parent; |
| 34 | |
| 35 | /* Calling this function is not ok for any file type but archives. */ |
| 36 | if (parent == NULL) |
| 37 | { |
| 38 | __libelf_seterrno (ELF_E_INVALID_OP); |
| 39 | return NULL; |
| 40 | } |
| 41 | |
| 42 | /* Make sure we have read the archive header. */ |
| 43 | if (parent->state.ar.elf_ar_hdr.ar_name == NULL |
| 44 | && __libelf_next_arhdr (parent) != 0) |
| 45 | /* Something went wrong. Maybe there is no member left. */ |
| 46 | return NULL; |
| 47 | |
| 48 | |
| 49 | /* We can be sure the parent is an archive. */ |
| 50 | assert (parent->kind == ELF_K_AR); |
| 51 | |
| 52 | return &parent->state.ar.elf_ar_hdr; |
| 53 | } |