summaryrefslogtreecommitdiff
path: root/plugins/pychrysalide/analysis/contents/memory.c
blob: d1da2e89163398e311585403802f4ff47b8a6db7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162

/* Chrysalide - Outil d'analyse de fichiers binaires
 * memory.c - prototypes pour l'équivalent Python du fichier "analysis/contents/memory.c"
 *
 * Copyright (C) 2018 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 <analysis/contents/memory.h>


#include "../../access.h"
#include "../../helpers.h"



/* Crée un nouvel objet Python de type 'BinContent'. */
static PyObject *py_memory_content_new(PyTypeObject *, PyObject *, PyObject *);



/******************************************************************************
*                                                                             *
*  Paramètres  : type = type de l'objet à instancier.                         *
*                args = arguments fournis à l'appel.                          *
*                kwds = arguments de type key=val fournis.                    *
*                                                                             *
*  Description : Crée un nouvel objet Python de type 'BinContent'.            *
*                                                                             *
*  Retour      : Instance Python mise en place.                               *
*                                                                             *
*  Remarques   : -                                                            *
*                                                                             *
******************************************************************************/

static PyObject *py_memory_content_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
{
    PyObject *result;                       /* Instance à retourner        */
    PyObject *data;                         /* Données brutes à charger    */
    int ret;                                /* Bilan de lecture des args.  */
    char *buffer;                           /* Tampon interne de Python    */
    Py_ssize_t length;                      /* Taille utilisé de ce tampon */
    GBinContent *content;                   /* Version GLib du contenu     */

    ret = PyArg_ParseTuple(args, "S", &data);
    if (!ret) return NULL;

    ret = PyBytes_AsStringAndSize(data, &buffer, &length);
    if (ret == -1) Py_RETURN_NONE;

    content = g_memory_content_new((const bin_t *)buffer, length);

    result = pygobject_new(G_OBJECT(content));

    if (content != NULL)
        g_object_unref(content);

    return result;

}


/******************************************************************************
*                                                                             *
*  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         = "PyChrysalide binary memory content",

        .tp_methods     = py_memory_content_methods,
        .tp_getset      = py_memory_content_getseters,
        .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 (!register_class_for_pygobject(dict, G_TYPE_MEMORY_CONTENT, type, &PyGObject_Type))
            return false;

    }

    return true;

}