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76 lines
2.5 KiB
76 lines
2.5 KiB
/* Return raw section content. |
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Copyright (C) 1998, 1999, 2000, 2002, 2015 Red Hat, Inc. |
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This file is part of elfutils. |
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Contributed by Ulrich Drepper <drepper@redhat.com>, 1998. |
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This file is free software; you can redistribute it and/or modify |
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it under the terms of either |
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* the GNU Lesser General Public License as published by the Free |
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Software Foundation; either version 3 of the License, or (at |
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your option) any later version |
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or |
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* the GNU General Public License as published by the Free |
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Software Foundation; either version 2 of the License, or (at |
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your option) any later version |
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or both in parallel, as here. |
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elfutils is distributed in the hope that it will be useful, but |
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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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General Public License for more details. |
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You should have received copies of the GNU General Public License and |
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the GNU Lesser General Public License along with this program. If |
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not, see <http://www.gnu.org/licenses/>. */ |
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#ifdef HAVE_CONFIG_H |
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# include <config.h> |
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#endif |
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#include <stdlib.h> |
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#include "libelfP.h" |
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Elf_Data * |
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elf_rawdata (Elf_Scn *scn, Elf_Data *data) |
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{ |
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if (scn == NULL || scn->elf->kind != ELF_K_ELF) |
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{ |
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__libelf_seterrno (ELF_E_INVALID_HANDLE); |
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return NULL; |
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} |
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/* If `data' is not NULL this means we are not addressing the initial |
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data in the file. But this also means this data is already read |
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(since otherwise it is not possible to have a valid `data' pointer) |
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and all the data structures are initialized as well. In this case |
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we can simply walk the list of data records. */ |
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if (data != NULL |
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|| (scn->data_read != 0 && (scn->flags & ELF_F_FILEDATA) == 0)) |
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{ |
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/* We don't allow accessing any but the data read from the file |
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as raw. */ |
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__libelf_seterrno (ELF_E_DATA_MISMATCH); |
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return NULL; |
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} |
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/* If the data for this section was not yet initialized do it now. */ |
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if (scn->data_read == 0) |
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{ |
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/* First thing we do is to read the data from the file. There is |
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always a file (or memory region) associated with this descriptor |
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since otherwise the `data_read' flag would be set. */ |
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if (__libelf_set_rawdata (scn) != 0) |
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/* Something went wrong. The error value is already set. */ |
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return NULL; |
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} |
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/* Return the first data element in the list. */ |
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return &scn->rawdata.d; |
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} |
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INTDEF(elf_rawdata)
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