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Diffstat (limited to 'plugins/pychrysalide/analysis/scan/core.c')
| -rw-r--r-- | plugins/pychrysalide/analysis/scan/core.c | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/plugins/pychrysalide/analysis/scan/core.c b/plugins/pychrysalide/analysis/scan/core.c new file mode 100644 index 0000000..16df9a9 --- /dev/null +++ b/plugins/pychrysalide/analysis/scan/core.c @@ -0,0 +1,179 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * core.c - équivalent Python du fichier "analysis/scan/core.c" + * + * Copyright (C) 2023 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 "core.h" + + +#include <pygobject.h> + + +#include <analysis/scan/core.h> + + +#include "patterns/modifier.h" +#include "../../access.h" +#include "../../helpers.h" + + + +/* Inscrit un modificateur dans la liste des disponibles. */ +static PyObject *py_scan_register_token_modifier(PyObject *, PyObject *); + +/* Fournit le modificateur correspondant à un nom. */ +static PyObject *py_scan_find_token_modifiers_for_name(PyObject *, PyObject *); + + + +/****************************************************************************** +* * +* Paramètres : self = objet Python concerné par l'appel. * +* args = arguments fournis à l'appel. * +* * +* Description : Inscrit un modificateur dans la liste des disponibles. * +* * +* Retour : Bilan des enregistrements effectués : True si nouveauté. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static PyObject *py_scan_register_token_modifier(PyObject *self, PyObject *args) +{ + PyObject *result; /* Bilan à retourner */ + PyObject *instance; /* Instance Python fournie */ + GScanTokenModifier *modifier; /* Version native */ + int ret; /* Bilan de lecture des args. */ + bool status; /* Bilan d'un enregistrement */ + +#define SCAN_REGISTER_TOKEN_MODIFIER_METHOD PYTHON_METHOD_DEF \ +( \ + register_token_modifier, "inst, /", \ + METH_VARARGS, py_scan, \ + "Register a token modifier for byte patterns to scan.\n" \ + "\n" \ + "This instance will be used as singleton and has to be a" \ + " subclass of pychrysalide.analysis.scan.patterns.TokenModifier." \ +) + + ret = PyArg_ParseTuple(args, "O!", get_python_scan_token_modifier_type(), &instance); + if (!ret) return NULL; + + modifier = G_SCAN_TOKEN_MODIFIER(pygobject_get(instance)); + + status = register_scan_token_modifier(modifier); + + result = status ? Py_True : Py_False; + Py_INCREF(result); + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : self = objet Python concerné par l'appel. * +* args = arguments fournis à l'appel. * +* * +* Description : Fournit le modificateur correspondant à un nom. * +* * +* Retour : Instance du modificateur identifié ou None. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static PyObject *py_scan_find_token_modifiers_for_name(PyObject *self, PyObject *args) +{ + PyObject *result; /* Bilan à retourner */ + sized_string_t name; /* Nom d'appel à rechercher */ + Py_ssize_t len; /* Taille de ce nom */ + int ret; /* Bilan de lecture des args. */ + GScanTokenModifier *modifier; /* Instance mise en place */ + +#define SCAN_FIND_TOKEN_MODIFIERS_FOR_NAME_METHOD PYTHON_METHOD_DEF \ +( \ + find_token_modifiers_for_name, "name, /", \ + METH_VARARGS, py_scan, \ + "Provide the registered instance of a pattern modifier linked" \ + " to a given *name* provided as a key string.\n" \ + "\n" \ + "The returned instance is an object inherited from" \ + " pychrysalide.analysis.scan.patterns.TokenModifier or *None*" \ + " if no instance was found for the provided name." \ +) + + ret = PyArg_ParseTuple(args, "s#", &name.static_data, &len); + if (!ret) return NULL; + + name.len = len; + + modifier = find_scan_token_modifiers_for_name(&name); + + if (modifier != NULL) + { + result = pygobject_new(G_OBJECT(modifier)); + g_object_unref(G_OBJECT(modifier)); + } + else + { + result = Py_None; + Py_INCREF(result); + } + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : - * +* * +* Description : Définit une extension du module 'scan' à compléter. * +* * +* Retour : Bilan de l'opération. * +* * +* Remarques : - * +* * +******************************************************************************/ + +bool populate_scan_module_with_core_methods(void) +{ + bool result; /* Bilan à retourner */ + PyObject *module; /* Module à recompléter */ + + static PyMethodDef py_core_methods[] = { + SCAN_REGISTER_TOKEN_MODIFIER_METHOD, + SCAN_FIND_TOKEN_MODIFIERS_FOR_NAME_METHOD, + { NULL } + }; + + module = get_access_to_python_module("pychrysalide.analysis.scan"); + + result = register_python_module_methods(module, py_core_methods); + + return result; + +} |