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/*
* GUID functions
*
* Copyright (C) 2011-2016, Joachim Metz <joachim.metz@gmail.com>
*
* Refer to AUTHORS for acknowledgements.
*
* This software is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This software 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 Lesser General Public License
* along with this software. If not, see <http://www.gnu.org/licenses/>.
*/
#include <common.h>
#include <types.h>
#include "pyvshadow_error.h"
#include "pyvshadow_guid.h"
#include "pyvshadow_libfguid.h"
#include "pyvshadow_python.h"
/* Creates a new string object from a GUID
* Returns a Python object if successful or NULL on error
*/
PyObject *pyvshadow_string_new_from_guid(
const uint8_t *guid_buffer,
size_t guid_buffer_size )
{
char guid_string[ 48 ];
libcerror_error_t *error = NULL;
libfguid_identifier_t *guid = NULL;
PyObject *string_object = NULL;
const char *errors = NULL;
static char *function = "pyvshadow_string_new_from_guid";
if( libfguid_identifier_initialize(
&guid,
&error ) != 1 )
{
pyvshadow_error_raise(
error,
PyExc_IOError,
"%s: unable to create GUID.",
function );
libcerror_error_free(
&error );
goto on_error;
}
if( libfguid_identifier_copy_from_byte_stream(
guid,
guid_buffer,
guid_buffer_size,
LIBFGUID_ENDIAN_LITTLE,
&error ) != 1 )
{
pyvshadow_error_raise(
error,
PyExc_IOError,
"%s: unable to copy byte stream to GUID.",
function );
libcerror_error_free(
&error );
goto on_error;
}
if( libfguid_identifier_copy_to_utf8_string(
guid,
(uint8_t *) guid_string,
48,
LIBFGUID_STRING_FORMAT_FLAG_USE_LOWER_CASE,
&error ) != 1 )
{
pyvshadow_error_raise(
error,
PyExc_IOError,
"%s: unable to copy GUID to string.",
function );
libcerror_error_free(
&error );
goto on_error;
}
if( libfguid_identifier_free(
&guid,
&error ) != 1 )
{
pyvshadow_error_raise(
error,
PyExc_IOError,
"%s: unable to free GUID.",
function );
libcerror_error_free(
&error );
goto on_error;
}
/* Pass the string length to PyUnicode_DecodeUTF8
* otherwise it makes the end of string character is part
* of the string
*/
string_object = PyUnicode_DecodeUTF8(
guid_string,
(Py_ssize_t) 36,
errors );
return( string_object );
on_error:
if( guid != NULL )
{
libfguid_identifier_free(
&guid,
NULL );
}
return( NULL );
}
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