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#define PY_SSIZE_T_CLEAN
#include <Python.h>
#include <openssl/crypto.h>
#if PY_MAJOR_VERSION >= 3
static PyObject* SecureString_clearmem(PyObject *self, PyObject *args) {
char *buffer;
Py_ssize_t length;
if(!PyArg_ParseTuple(args, "s#", &buffer, &length)) {
return NULL;
}
OPENSSL_cleanse(buffer, length);
return Py_BuildValue("");
}
#else
static PyObject* SecureString_clearmem(PyObject *self, PyObject *str) {
char *buffer;
Py_ssize_t length;
if (PyString_AsStringAndSize(str, &buffer, &length) != -1) {
OPENSSL_cleanse(buffer, length);
}
return Py_BuildValue("");
}
#endif
#if PY_MAJOR_VERSION >= 3
static PyMethodDef SecureStringMethods[] = {
{"clearmem", SecureString_clearmem, METH_VARARGS, "clear the memory of the string"},
{NULL, NULL, 0, NULL},
};
#else
static PyMethodDef SecureStringMethods[] = {
{"clearmem", SecureString_clearmem, METH_O,
PyDoc_STR("clear the memory of the string")},
{NULL, NULL, 0, NULL},
};
#endif
#if PY_MAJOR_VERSION >= 3
static struct PyModuleDef SecureStringDef = {
PyModuleDef_HEAD_INIT,
"SecureString",
NULL,
-1,
SecureStringMethods,
};
#endif
#if PY_MAJOR_VERSION >= 3
PyMODINIT_FUNC PyInit_SecureString(void) {
return PyModule_Create(&SecureStringDef);
}
#else
PyMODINIT_FUNC initSecureString(void)
{
(void) Py_InitModule("SecureString", SecureStringMethods);
}
#endif
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