Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 1 | /* Return raw section content. |
| 2 | Copyright (C) 1998, 1999, 2000, 2002 Red Hat, Inc. |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 3 | This file is part of elfutils. |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 4 | Contributed by Ulrich Drepper <drepper@redhat.com>, 1998. |
| 5 | |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 6 | This file is free software; you can redistribute it and/or modify |
| 7 | it under the terms of either |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 8 | |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 9 | * the GNU Lesser General Public License as published by the Free |
| 10 | Software Foundation; either version 3 of the License, or (at |
| 11 | your option) any later version |
| 12 | |
| 13 | or |
| 14 | |
| 15 | * the GNU General Public License as published by the Free |
| 16 | Software Foundation; either version 2 of the License, or (at |
| 17 | your option) any later version |
| 18 | |
| 19 | or both in parallel, as here. |
| 20 | |
| 21 | elfutils is distributed in the hope that it will be useful, but |
Ulrich Drepper | 361df7d | 2006-04-04 21:38:57 +0000 | [diff] [blame] | 22 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 23 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 24 | General Public License for more details. |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 25 | |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 26 | You should have received copies of the GNU General Public License and |
| 27 | the GNU Lesser General Public License along with this program. If |
| 28 | not, see <http://www.gnu.org/licenses/>. */ |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 29 | |
| 30 | #ifdef HAVE_CONFIG_H |
| 31 | # include <config.h> |
| 32 | #endif |
| 33 | |
| 34 | #include <stdlib.h> |
| 35 | |
| 36 | #include "libelfP.h" |
| 37 | |
| 38 | |
| 39 | Elf_Data * |
| 40 | elf_rawdata (scn, data) |
| 41 | Elf_Scn *scn; |
| 42 | Elf_Data *data; |
| 43 | { |
| 44 | if (scn == NULL || scn->elf->kind != ELF_K_ELF) |
| 45 | { |
| 46 | __libelf_seterrno (ELF_E_INVALID_HANDLE); |
| 47 | return NULL; |
| 48 | } |
| 49 | |
| 50 | /* If `data' is not NULL this means we are not addressing the initial |
| 51 | data in the file. But this also means this data is already read |
| 52 | (since otherwise it is not possible to have a valid `data' pointer) |
| 53 | and all the data structures are initialized as well. In this case |
| 54 | we can simply walk the list of data records. */ |
| 55 | if (data != NULL |
| 56 | || (scn->data_read != 0 && (scn->flags & ELF_F_FILEDATA) == 0)) |
| 57 | { |
| 58 | /* We don't allow accessing any but the data read from the file |
| 59 | as raw. */ |
| 60 | __libelf_seterrno (ELF_E_DATA_MISMATCH); |
| 61 | return NULL; |
| 62 | } |
| 63 | |
| 64 | /* If the data for this section was not yet initialized do it now. */ |
| 65 | if (scn->data_read == 0) |
| 66 | { |
| 67 | /* First thing we do is to read the data from the file. There is |
| 68 | always a file (or memory region) associated with this descriptor |
| 69 | since otherwise the `data_read' flag would be set. */ |
Roland McGrath | b4d6f0f | 2008-08-25 22:55:17 +0000 | [diff] [blame] | 70 | if (__libelf_set_rawdata (scn) != 0) |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 71 | /* Something went wrong. The error value is already set. */ |
| 72 | return NULL; |
| 73 | } |
| 74 | |
| 75 | /* Return the first data element in the list. */ |
| 76 | return &scn->rawdata.d; |
| 77 | } |
| 78 | INTDEF(elf_rawdata) |