diff options
Diffstat (limited to 'libelf/elf_rawdata.c')
| -rw-r--r-- | libelf/elf_rawdata.c | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/libelf/elf_rawdata.c b/libelf/elf_rawdata.c new file mode 100644 index 0000000..b8bb0f4 --- /dev/null +++ b/libelf/elf_rawdata.c @@ -0,0 +1,99 @@ +/* Return raw section content. + Copyright (C) 1998, 1999, 2000, 2002 Red Hat, Inc. + This file is part of Red Hat elfutils. + Contributed by Ulrich Drepper <drepper@redhat.com>, 1998. + + Red Hat elfutils is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by the + Free Software Foundation; version 2 of the License. + + Red Hat elfutils 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 + General Public License for more details. + + You should have received a copy of the GNU General Public License along + with Red Hat elfutils; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. + + In addition, as a special exception, Red Hat, Inc. gives You the + additional right to link the code of Red Hat elfutils with code licensed + under any Open Source Initiative certified open source license + (http://www.opensource.org/licenses/index.php) which requires the + distribution of source code with any binary distribution and to + distribute linked combinations of the two. Non-GPL Code permitted under + this exception must only link to the code of Red Hat elfutils through + those well defined interfaces identified in the file named EXCEPTION + found in the source code files (the "Approved Interfaces"). The files + of Non-GPL Code may instantiate templates or use macros or inline + functions from the Approved Interfaces without causing the resulting + work to be covered by the GNU General Public License. Only Red Hat, + Inc. may make changes or additions to the list of Approved Interfaces. + Red Hat's grant of this exception is conditioned upon your not adding + any new exceptions. If you wish to add a new Approved Interface or + exception, please contact Red Hat. You must obey the GNU General Public + License in all respects for all of the Red Hat elfutils code and other + code used in conjunction with Red Hat elfutils except the Non-GPL Code + covered by this exception. If you modify this file, you may extend this + exception to your version of the file, but you are not obligated to do + so. If you do not wish to provide this exception without modification, + you must delete this exception statement from your version and license + this file solely under the GPL without exception. + + Red Hat elfutils is an included package of the Open Invention Network. + An included package of the Open Invention Network is a package for which + Open Invention Network licensees cross-license their patents. No patent + license is granted, either expressly or impliedly, by designation as an + included package. Should you wish to participate in the Open Invention + Network licensing program, please visit www.openinventionnetwork.com + <http://www.openinventionnetwork.com>. */ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#include <stdlib.h> + +#include "libelfP.h" + + +Elf_Data * +elf_rawdata (scn, data) + Elf_Scn *scn; + Elf_Data *data; +{ + if (scn == NULL || scn->elf->kind != ELF_K_ELF) + { + __libelf_seterrno (ELF_E_INVALID_HANDLE); + return NULL; + } + + /* If `data' is not NULL this means we are not addressing the initial + data in the file. But this also means this data is already read + (since otherwise it is not possible to have a valid `data' pointer) + and all the data structures are initialized as well. In this case + we can simply walk the list of data records. */ + if (data != NULL + || (scn->data_read != 0 && (scn->flags & ELF_F_FILEDATA) == 0)) + { + /* We don't allow accessing any but the data read from the file + as raw. */ + __libelf_seterrno (ELF_E_DATA_MISMATCH); + return NULL; + } + + /* If the data for this section was not yet initialized do it now. */ + if (scn->data_read == 0) + { + /* First thing we do is to read the data from the file. There is + always a file (or memory region) associated with this descriptor + since otherwise the `data_read' flag would be set. */ + if (__libelf_set_rawdata (scn) != 0) + /* Something went wrong. The error value is already set. */ + return NULL; + } + + /* Return the first data element in the list. */ + return &scn->rawdata.d; +} +INTDEF(elf_rawdata) |