/* Chrysalide - Outil d'analyse de fichiers binaires
* memory.c - prototypes pour l'équivalent Python du fichier "analysis/contents/memory.c"
*
* Copyright (C) 2018-2019 Cyrille Bagard
*
* This file is part of Chrysalide.
*
* Chrysalide 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; either version 3 of the License, or
* (at your option) any later version.
*
* Chrysalide 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "memory.h"
#include <pygobject.h>
#include <i18n.h>
#include <analysis/contents/memory-int.h>
#include "../content.h"
#include "../../access.h"
#include "../../helpers.h"
CREATE_DYN_CONSTRUCTOR(memory_content, G_TYPE_MEMORY_CONTENT);
/* Initialise une instance sur la base du dérivé de GObject. */
static int py_memory_content_init(PyObject *, PyObject *, PyObject *);
/******************************************************************************
* *
* Paramètres : self = objet à initialiser (théoriquement). *
* args = arguments fournis à l'appel. *
* kwds = arguments de type key=val fournis. *
* *
* Description : Initialise une instance sur la base du dérivé de GObject. *
* *
* Retour : 0. *
* *
* Remarques : - *
* *
******************************************************************************/
static int py_memory_content_init(PyObject *self, PyObject *args, PyObject *kwds)
{
const char *data; /* Tampon interne de Python */
Py_ssize_t length; /* Taille utilisé de ce tampon */
int ret; /* Bilan de lecture des args. */
GMemoryContent *content; /* Version GLib du contenu */
#define MEMORY_CONTENT_DOC \
"MemoryContent builds a binary content from memory data only." \
" Thus no existing file backend is needed." \
"\n" \
"Instances can be created using the following constructor:\n" \
"\n" \
" MemoryContent(data)" \
"\n" \
"Where data is provided as string or read-only bytes-like object." \
" The string may contain embedded null bytes."
/* Récupération des paramètres */
/**
* La taille doit être de type 'int' et non 'Py_ssize_t', sinon les 32 bits
* de poids fort ne sont pas initialisés !
*/
ret = PyArg_ParseTuple(args, "s#", &data, &length);
if (!ret) return -1;
/* Initialisation d'un objet GLib */
ret = forward_pygobjet_init(self);
if (ret == -1) return -1;
/* Eléments de base */
content = G_MEMORY_CONTENT(pygobject_get(self));
if (!g_memory_content_create(content, (const bin_t *)data, length))
{
PyErr_SetString(PyExc_ValueError, _("Unable to create memory content."));
return -1;
}
return 0;
}
/******************************************************************************
* *
* Paramètres : - *
* *
* Description : Fournit un accès à une définition de type à diffuser. *
* *
* Retour : Définition d'objet pour Python. *
* *
* Remarques : - *
* *
******************************************************************************/
PyTypeObject *get_python_memory_content_type(void)
{
static PyMethodDef py_memory_content_methods[] = {
{ NULL }
};
static PyGetSetDef py_memory_content_getseters[] = {
{ NULL }
};
static PyTypeObject py_memory_content_type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "pychrysalide.analysis.contents.MemoryContent",
.tp_basicsize = sizeof(PyGObject),
.tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
.tp_doc = MEMORY_CONTENT_DOC,
.tp_methods = py_memory_content_methods,
.tp_getset = py_memory_content_getseters,
.tp_init = py_memory_content_init,
.tp_new = py_memory_content_new,
};
return &py_memory_content_type;
}
/******************************************************************************
* *
* Paramètres : module = module dont la définition est à compléter. *
* *
* Description : Prend en charge l'objet 'pychrysalide.....MemoryContent'. *
* *
* Retour : Bilan de l'opération. *
* *
* Remarques : - *
* *
******************************************************************************/
bool ensure_python_memory_content_is_registered(void)
{
PyTypeObject *type; /* Type Python 'MemoryContent' */
PyObject *module; /* Module à recompléter */
PyObject *dict; /* Dictionnaire du module */
type = get_python_memory_content_type();
if (!PyType_HasFeature(type, Py_TPFLAGS_READY))
{
module = get_access_to_python_module("pychrysalide.analysis.contents");
dict = PyModule_GetDict(module);
if (!ensure_python_binary_content_is_registered())
return false;
if (!register_class_for_pygobject(dict, G_TYPE_MEMORY_CONTENT, type))
return false;
}
return true;
}