2 files changed, 59 insertions, 0 deletions
diff --git a/plugins/pychrysalide/analysis/constants.c b/plugins/pychrysalide/analysis/constants.c
index a162ac7..9bc3e9f 100644
--- a/plugins/pychrysalide/analysis/constants.c
+++ b/plugins/pychrysalide/analysis/constants.c
@@ -98,3 +98,59 @@ bool define_analysis_content_constants(PyTypeObject *type)
     return result;
 
 }
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : arg = argument quelconque à tenter de convertir.             *
+*                dst = destination des valeurs récupérées en cas de succès.   *
+*                                                                             *
+*  Description : Tente de convertir en constante SourceEndian.                *
+*                                                                             *
+*  Retour      : Bilan de l'opération, voire indications supplémentaires.     *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+int convert_to_source_endian(PyObject *arg, void *dst)
+{
+    int result;                             /* Bilan à retourner           */
+    unsigned long value;                    /* Valeur transcrite           */
+
+    result = PyObject_IsInstance(arg, (PyObject *)&PyLong_Type);
+
+    switch (result)
+    {
+        case -1:
+            /* L'exception est déjà fixée par Python */
+            result = 0;
+            break;
+
+        case 0:
+            PyErr_SetString(PyExc_TypeError, "unable to convert the provided argument to SourceEndian");
+            break;
+
+        case 1:
+            value = PyLong_AsUnsignedLong(arg);
+
+            if (value > SRE_BIG)
+            {
+                PyErr_SetString(PyExc_TypeError, "invalid value for SourceEndian");
+                result = 0;
+            }
+
+            else
+                *((SourceEndian *)dst) = value;
+
+            break;
+
+        default:
+            assert(false);
+            break;
+
+    }
+
+    return result;
+
+}
diff --git a/plugins/pychrysalide/analysis/constants.h b/plugins/pychrysalide/analysis/constants.h
index c4da054..2ab1f0a 100644
--- a/plugins/pychrysalide/analysis/constants.h
+++ b/plugins/pychrysalide/analysis/constants.h
@@ -33,6 +33,9 @@
 /* Définit les constantes relatives aux contenus binaires. */
 bool define_analysis_content_constants(PyTypeObject *);
 
+/* Tente de convertir en constante SourceEndian. */
+int convert_to_source_endian(PyObject *, void *);
+
 
 
 #endif  /* _PLUGINS_PYCHRYSALIDE_ANALYSIS_CONSTANTS_H */