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bpo-1635741: Port _sha1, _sha512, _md5 to multiphase init (GH-21818) 

Port the _sha1, _sha512, and _md5 extension modules
to multi-phase initialization API (PEP 489).
This commit is contained in:
Mohamed Koubaa 2020-09-06 05:09:51 -05:00 committed by GitHub
parent 5371a464ce
commit 63f102fe07
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
7 changed files with 362 additions and 254 deletions
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2
Misc/NEWS.d/next/Core and Builtins/2020-08-10-16-11-32.bpo-1635741.O0d3ym.rst Normal file
View File

@ -0,0 +1,2 @@
Port the :mod:`_sha1`, :mod:`_sha512`, and :mod:`_md5` extension modules
to multi-phase initialization API (:pep:`489`).

21
Modules/clinic/md5module.c.h generated
View File

@ -9,15 +9,26 @@ PyDoc_STRVAR(MD5Type_copy__doc__,
"Return a copy of the hash object.");
#define MD5TYPE_COPY_METHODDEF \
{"copy", (PyCFunction)MD5Type_copy, METH_NOARGS, MD5Type_copy__doc__},
{"copy", (PyCFunction)(void(*)(void))MD5Type_copy, METH_METHOD|METH_FASTCALL|METH_KEYWORDS, MD5Type_copy__doc__},
static PyObject *
MD5Type_copy_impl(MD5object *self);
MD5Type_copy_impl(MD5object *self, PyTypeObject *cls);
static PyObject *
MD5Type_copy(MD5object *self, PyObject *Py_UNUSED(ignored))
MD5Type_copy(MD5object *self, PyTypeObject *cls, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
return MD5Type_copy_impl(self);
PyObject *return_value = NULL;
static const char * const _keywords[] = { NULL};
static _PyArg_Parser _parser = {":copy", _keywords, 0};
if (!_PyArg_ParseStackAndKeywords(args, nargs, kwnames, &_parser
)) {
goto exit;
}
return_value = MD5Type_copy_impl(self, cls);
exit:
return return_value;
}
PyDoc_STRVAR(MD5Type_digest__doc__,
@ -115,4 +126,4 @@ skip_optional_kwonly:
exit:
return return_value;
}
/*[clinic end generated code: output=dbe3abc60086f3ef input=a9049054013a1b77]*/
/*[clinic end generated code: output=53ff7f22dbaaea36 input=a9049054013a1b77]*/

21
Modules/clinic/sha1module.c.h generated
View File

@ -9,15 +9,26 @@ PyDoc_STRVAR(SHA1Type_copy__doc__,
"Return a copy of the hash object.");
#define SHA1TYPE_COPY_METHODDEF \
{"copy", (PyCFunction)SHA1Type_copy, METH_NOARGS, SHA1Type_copy__doc__},
{"copy", (PyCFunction)(void(*)(void))SHA1Type_copy, METH_METHOD|METH_FASTCALL|METH_KEYWORDS, SHA1Type_copy__doc__},
static PyObject *
SHA1Type_copy_impl(SHA1object *self);
SHA1Type_copy_impl(SHA1object *self, PyTypeObject *cls);
static PyObject *
SHA1Type_copy(SHA1object *self, PyObject *Py_UNUSED(ignored))
SHA1Type_copy(SHA1object *self, PyTypeObject *cls, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
return SHA1Type_copy_impl(self);
PyObject *return_value = NULL;
static const char * const _keywords[] = { NULL};
static _PyArg_Parser _parser = {":copy", _keywords, 0};
if (!_PyArg_ParseStackAndKeywords(args, nargs, kwnames, &_parser
)) {
goto exit;
}
return_value = SHA1Type_copy_impl(self, cls);
exit:
return return_value;
}
PyDoc_STRVAR(SHA1Type_digest__doc__,
@ -115,4 +126,4 @@ skip_optional_kwonly:
exit:
return return_value;
}
/*[clinic end generated code: output=3ddd637ae17e14b3 input=a9049054013a1b77]*/
/*[clinic end generated code: output=abf1ab2545cea5a2 input=a9049054013a1b77]*/

21
Modules/clinic/sha512module.c.h generated
View File

@ -9,15 +9,26 @@ PyDoc_STRVAR(SHA512Type_copy__doc__,
"Return a copy of the hash object.");
#define SHA512TYPE_COPY_METHODDEF \
{"copy", (PyCFunction)SHA512Type_copy, METH_NOARGS, SHA512Type_copy__doc__},
{"copy", (PyCFunction)(void(*)(void))SHA512Type_copy, METH_METHOD|METH_FASTCALL|METH_KEYWORDS, SHA512Type_copy__doc__},
static PyObject *
SHA512Type_copy_impl(SHAobject *self);
SHA512Type_copy_impl(SHAobject *self, PyTypeObject *cls);
static PyObject *
SHA512Type_copy(SHAobject *self, PyObject *Py_UNUSED(ignored))
SHA512Type_copy(SHAobject *self, PyTypeObject *cls, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
return SHA512Type_copy_impl(self);
PyObject *return_value = NULL;
static const char * const _keywords[] = { NULL};
static _PyArg_Parser _parser = {":copy", _keywords, 0};
if (!_PyArg_ParseStackAndKeywords(args, nargs, kwnames, &_parser
)) {
goto exit;
}
return_value = SHA512Type_copy_impl(self, cls);
exit:
return return_value;
}
PyDoc_STRVAR(SHA512Type_digest__doc__,
@ -166,4 +177,4 @@ skip_optional_kwonly:
exit:
return return_value;
}
/*[clinic end generated code: output=bbfa72d8703c82b5 input=a9049054013a1b77]*/
/*[clinic end generated code: output=9ff9f11937fabf35 input=a9049054013a1b77]*/

156
Modules/md5module.c
View File

@ -318,22 +318,32 @@ md5_done(struct md5_state *md5, unsigned char *out)
* ------------------------------------------------------------------------
*/
static PyTypeObject MD5type;
typedef struct {
PyTypeObject* md5_type;
} MD5State;
static MD5object *
newMD5object(void)
static inline MD5State*
md5_get_state(PyObject *module)
{
return (MD5object *)PyObject_New(MD5object, &MD5type);
void *state = PyModule_GetState(module);
assert(state != NULL);
return (MD5State *)state;
}
static MD5object *
newMD5object(MD5State * st)
{
return (MD5object *)PyObject_New(MD5object, st->md5_type);
}
/* Internal methods for a hash object */
static void
MD5_dealloc(PyObject *ptr)
{
PyTypeObject *tp = Py_TYPE(ptr);
PyObject_Del(ptr);
Py_DECREF(tp);
}
@ -342,16 +352,19 @@ MD5_dealloc(PyObject *ptr)
/*[clinic input]
MD5Type.copy
cls: defining_class
Return a copy of the hash object.
[clinic start generated code]*/
static PyObject *
MD5Type_copy_impl(MD5object *self)
/*[clinic end generated code: output=596eb36852f02071 input=2c09e6d2493f3079]*/
MD5Type_copy_impl(MD5object *self, PyTypeObject *cls)
/*[clinic end generated code: output=bf055e08244bf5ee input=d89087dcfb2a8620]*/
{
MD5object *newobj;
MD5State *st = PyType_GetModuleState(cls);
if ((newobj = newMD5object())==NULL)
MD5object *newobj;
if ((newobj = newMD5object(st))==NULL)
return NULL;
newobj->hash_state = self->hash_state;
@ -445,7 +458,6 @@ md5_get_digest_size(PyObject *self, void *closure)
return PyLong_FromLong(MD5_DIGESTSIZE);
}
static PyGetSetDef MD5_getseters[] = {
{"block_size",
(getter)MD5_get_block_size, NULL,
@ -462,40 +474,19 @@ static PyGetSetDef MD5_getseters[] = {
{NULL} /* Sentinel */
};
static PyTypeObject MD5type = {
PyVarObject_HEAD_INIT(NULL, 0)
"_md5.md5", /*tp_name*/
sizeof(MD5object), /*tp_basicsize*/
0, /*tp_itemsize*/
/* methods */
MD5_dealloc, /*tp_dealloc*/
0, /*tp_vectorcall_offset*/
0, /*tp_getattr*/
0, /*tp_setattr*/
0, /*tp_as_async*/
0, /*tp_repr*/
0, /*tp_as_number*/
0, /*tp_as_sequence*/
0, /*tp_as_mapping*/
0, /*tp_hash*/
0, /*tp_call*/
0, /*tp_str*/
0, /*tp_getattro*/
0, /*tp_setattro*/
0, /*tp_as_buffer*/
Py_TPFLAGS_DEFAULT, /*tp_flags*/
0, /*tp_doc*/
0, /*tp_traverse*/
0, /*tp_clear*/
0, /*tp_richcompare*/
0, /*tp_weaklistoffset*/
0, /*tp_iter*/
0, /*tp_iternext*/
MD5_methods, /* tp_methods */
NULL, /* tp_members */
MD5_getseters, /* tp_getset */
static PyType_Slot md5_type_slots[] = {
{Py_tp_dealloc, MD5_dealloc},
{Py_tp_methods, MD5_methods},
{Py_tp_getset, MD5_getseters},
{0,0}
};
static PyType_Spec md5_type_spec = {
.name = "_md5.md5",
.basicsize = sizeof(MD5object),
.flags = Py_TPFLAGS_DEFAULT,
.slots = md5_type_slots
};
/* The single module-level function: new() */
@ -519,7 +510,8 @@ _md5_md5_impl(PyObject *module, PyObject *string, int usedforsecurity)
if (string)
GET_BUFFER_VIEW_OR_ERROUT(string, &buf);
if ((new = newMD5object()) == NULL) {
MD5State *st = md5_get_state(module);
if ((new = newMD5object(st)) == NULL) {
if (string)
PyBuffer_Release(&buf);
return NULL;
@ -549,37 +541,69 @@ static struct PyMethodDef MD5_functions[] = {
{NULL, NULL} /* Sentinel */
};
static int
_md5_traverse(PyObject *module, visitproc visit, void *arg)
{
MD5State *state = md5_get_state(module);
Py_VISIT(state->md5_type);
return 0;
}
static int
_md5_clear(PyObject *module)
{
MD5State *state = md5_get_state(module);
Py_CLEAR(state->md5_type);
return 0;
}
static void
_md5_free(void *module)
{
_md5_clear((PyObject *)module);
}
/* Initialize this module. */
static int
md5_exec(PyObject *m)
{
MD5State *st = md5_get_state(m);
st->md5_type = (PyTypeObject *)PyType_FromModuleAndSpec(
m, &md5_type_spec, NULL);
if (st->md5_type == NULL) {
return -1;
}
Py_INCREF((PyObject *)st->md5_type);
if (PyModule_AddObject(m, "MD5Type", (PyObject *)st->md5_type) < 0) {
Py_DECREF(st->md5_type);
return -1;
}
return 0;
}
static PyModuleDef_Slot _md5_slots[] = {
{Py_mod_exec, md5_exec},
{0, NULL}
};
static struct PyModuleDef _md5module = {
PyModuleDef_HEAD_INIT,
"_md5",
NULL,
-1,
MD5_functions,
NULL,
NULL,
NULL,
NULL
.m_name = "_md5",
.m_size = sizeof(MD5State),
.m_methods = MD5_functions,
.m_slots = _md5_slots,
.m_traverse = _md5_traverse,
.m_clear = _md5_clear,
.m_free = _md5_free,
};
PyMODINIT_FUNC
PyInit__md5(void)
{
PyObject *m;
Py_SET_TYPE(&MD5type, &PyType_Type);
if (PyType_Ready(&MD5type) < 0) {
return NULL;
}
m = PyModule_Create(&_md5module);
if (m == NULL) {
return NULL;
}
Py_INCREF((PyObject *)&MD5type);
PyModule_AddObject(m, "MD5Type", (PyObject *)&MD5type);
return m;
return PyModuleDef_Init(&_md5module);
}

156
Modules/sha1module.c
View File

@ -295,13 +295,22 @@ sha1_done(struct sha1_state *sha1, unsigned char *out)
* ------------------------------------------------------------------------
*/
static PyTypeObject SHA1type;
typedef struct {
PyTypeObject* sha1_type;
} SHA1State;
static inline SHA1State*
sha1_get_state(PyObject *module)
{
void *state = PyModule_GetState(module);
assert(state != NULL);
return (SHA1State *)state;
}
static SHA1object *
newSHA1object(void)
newSHA1object(SHA1State *st)
{
return (SHA1object *)PyObject_New(SHA1object, &SHA1type);
return (SHA1object *)PyObject_New(SHA1object, st->sha1_type);
}
@ -310,7 +319,9 @@ newSHA1object(void)
static void
SHA1_dealloc(PyObject *ptr)
{
PyTypeObject *tp = Py_TYPE(ptr);
PyObject_Del(ptr);
Py_DECREF(tp);
}
@ -319,16 +330,19 @@ SHA1_dealloc(PyObject *ptr)
/*[clinic input]
SHA1Type.copy
cls: defining_class
Return a copy of the hash object.
[clinic start generated code]*/
static PyObject *
SHA1Type_copy_impl(SHA1object *self)
/*[clinic end generated code: output=b4e001264620f02a input=b7eae10df6f89b36]*/
SHA1Type_copy_impl(SHA1object *self, PyTypeObject *cls)
/*[clinic end generated code: output=b32d4461ce8bc7a7 input=6c22e66fcc34c58e]*/
{
SHA1object *newobj;
SHA1State *st = PyType_GetModuleState(cls);
if ((newobj = newSHA1object()) == NULL)
SHA1object *newobj;
if ((newobj = newSHA1object(st)) == NULL)
return NULL;
newobj->hash_state = self->hash_state;
@ -422,7 +436,6 @@ sha1_get_digest_size(PyObject *self, void *closure)
return PyLong_FromLong(SHA1_DIGESTSIZE);
}
static PyGetSetDef SHA1_getseters[] = {
{"block_size",
(getter)SHA1_get_block_size, NULL,
@ -439,40 +452,19 @@ static PyGetSetDef SHA1_getseters[] = {
{NULL} /* Sentinel */
};
static PyTypeObject SHA1type = {
PyVarObject_HEAD_INIT(NULL, 0)
"_sha1.sha1", /*tp_name*/
sizeof(SHA1object), /*tp_basicsize*/
0, /*tp_itemsize*/
/* methods */
SHA1_dealloc, /*tp_dealloc*/
0, /*tp_vectorcall_offset*/
0, /*tp_getattr*/
0, /*tp_setattr*/
0, /*tp_as_async*/
0, /*tp_repr*/
0, /*tp_as_number*/
0, /*tp_as_sequence*/
0, /*tp_as_mapping*/
0, /*tp_hash*/
0, /*tp_call*/
0, /*tp_str*/
0, /*tp_getattro*/
0, /*tp_setattro*/
0, /*tp_as_buffer*/
Py_TPFLAGS_DEFAULT, /*tp_flags*/
0, /*tp_doc*/
0, /*tp_traverse*/
0, /*tp_clear*/
0, /*tp_richcompare*/
0, /*tp_weaklistoffset*/
0, /*tp_iter*/
0, /*tp_iternext*/
SHA1_methods, /* tp_methods */
NULL, /* tp_members */
SHA1_getseters, /* tp_getset */
static PyType_Slot sha1_type_slots[] = {
{Py_tp_dealloc, SHA1_dealloc},
{Py_tp_methods, SHA1_methods},
{Py_tp_getset, SHA1_getseters},
{0,0}
};
static PyType_Spec sha1_type_spec = {
.name = "_sha1.sha1",
.basicsize = sizeof(SHA1object),
.flags = Py_TPFLAGS_DEFAULT,
.slots = sha1_type_slots
};
/* The single module-level function: new() */
@ -496,7 +488,8 @@ _sha1_sha1_impl(PyObject *module, PyObject *string, int usedforsecurity)
if (string)
GET_BUFFER_VIEW_OR_ERROUT(string, &buf);
if ((new = newSHA1object()) == NULL) {
SHA1State *st = sha1_get_state(module);
if ((new = newSHA1object(st)) == NULL) {
if (string)
PyBuffer_Release(&buf);
return NULL;
@ -526,37 +519,72 @@ static struct PyMethodDef SHA1_functions[] = {
{NULL, NULL} /* Sentinel */
};
static int
_sha1_traverse(PyObject *module, visitproc visit, void *arg)
{
SHA1State *state = sha1_get_state(module);
Py_VISIT(state->sha1_type);
return 0;
}
static int
_sha1_clear(PyObject *module)
{
SHA1State *state = sha1_get_state(module);
Py_CLEAR(state->sha1_type);
return 0;
}
static void
_sha1_free(void *module)
{
_sha1_clear((PyObject *)module);
}
static int
_sha1_exec(PyObject *module)
{
SHA1State* st = sha1_get_state(module);
st->sha1_type = (PyTypeObject *)PyType_FromModuleAndSpec(
module, &sha1_type_spec, NULL);
if (st->sha1_type == NULL) {
return -1;
}
Py_INCREF(st->sha1_type);
if (PyModule_AddObject(module,
"SHA1Type",
(PyObject *)st->sha1_type) < 0) {
Py_DECREF(st->sha1_type);
return -1;
}
return 0;
}
/* Initialize this module. */
static PyModuleDef_Slot _sha1_slots[] = {
{Py_mod_exec, _sha1_exec},
{0, NULL}
};
static struct PyModuleDef _sha1module = {
PyModuleDef_HEAD_INIT,
"_sha1",
NULL,
-1,
SHA1_functions,
NULL,
NULL,
NULL,
NULL
.m_name = "_sha1",
.m_size = sizeof(SHA1State),
.m_methods = SHA1_functions,
.m_slots = _sha1_slots,
.m_traverse = _sha1_traverse,
.m_clear = _sha1_clear,
.m_free = _sha1_free
};
PyMODINIT_FUNC
PyInit__sha1(void)
{
PyObject *m;
Py_SET_TYPE(&SHA1type, &PyType_Type);
if (PyType_Ready(&SHA1type) < 0) {
return NULL;
}
m = PyModule_Create(&_sha1module);
if (m == NULL) {
return NULL;
}
Py_INCREF((PyObject *)&SHA1type);
PyModule_AddObject(m, "SHA1Type", (PyObject *)&SHA1type);
return m;
return PyModuleDef_Init(&_sha1module);
}

239
Modules/sha512module.c
View File

@ -422,20 +422,29 @@ sha512_final(unsigned char digest[SHA_DIGESTSIZE], SHAobject *sha_info)
* ------------------------------------------------------------------------
*/
static PyTypeObject SHA384type;
static PyTypeObject SHA512type;
typedef struct {
PyTypeObject* sha384_type;
PyTypeObject* sha512_type;
} SHA512State;
static SHAobject *
newSHA384object(void)
static inline SHA512State*
sha512_get_state(PyObject *module)
{
return (SHAobject *)PyObject_New(SHAobject, &SHA384type);
void *state = PyModule_GetState(module);
assert(state != NULL);
return (SHA512State *)state;
}
static SHAobject *
newSHA512object(void)
newSHA384object(SHA512State *st)
{
return (SHAobject *)PyObject_New(SHAobject, &SHA512type);
return (SHAobject *)PyObject_New(SHAobject, st->sha384_type);
}
static SHAobject *
newSHA512object(SHA512State *st)
{
return (SHAobject *)PyObject_New(SHAobject, st->sha512_type);
}
/* Internal methods for a hash object */
@ -443,7 +452,9 @@ newSHA512object(void)
static void
SHA512_dealloc(PyObject *ptr)
{
PyTypeObject *tp = Py_TYPE(ptr);
PyObject_Del(ptr);
Py_DECREF(tp);
}
@ -452,21 +463,27 @@ SHA512_dealloc(PyObject *ptr)
/*[clinic input]
SHA512Type.copy
cls: defining_class
Return a copy of the hash object.
[clinic start generated code]*/
static PyObject *
SHA512Type_copy_impl(SHAobject *self)
/*[clinic end generated code: output=adea896ed3164821 input=9f5f31e6c457776a]*/
SHA512Type_copy_impl(SHAobject *self, PyTypeObject *cls)
/*[clinic end generated code: output=85ea5b47837a08e6 input=f673a18f66527c90]*/
{
SHAobject *newobj;
SHA512State *st = PyType_GetModuleState(cls);
if (Py_IS_TYPE((PyObject*)self, &SHA512type)) {
if ( (newobj = newSHA512object())==NULL)
if (Py_IS_TYPE((PyObject*)self, st->sha512_type)) {
if ( (newobj = newSHA512object(st))==NULL) {
return NULL;
} else {
if ( (newobj = newSHA384object())==NULL)
}
}
else {
if ( (newobj = newSHA384object(st))==NULL) {
return NULL;
}
}
SHAcopy(self, newobj);
@ -574,74 +591,37 @@ static PyMemberDef SHA_members[] = {
{NULL} /* Sentinel */
};
static PyTypeObject SHA384type = {
PyVarObject_HEAD_INIT(NULL, 0)
"_sha512.sha384", /*tp_name*/
sizeof(SHAobject), /*tp_basicsize*/
0, /*tp_itemsize*/
/* methods */
SHA512_dealloc, /*tp_dealloc*/
0, /*tp_vectorcall_offset*/
0, /*tp_getattr*/
0, /*tp_setattr*/
0, /*tp_as_async*/
0, /*tp_repr*/
0, /*tp_as_number*/
0, /*tp_as_sequence*/
0, /*tp_as_mapping*/
0, /*tp_hash*/
0, /*tp_call*/
0, /*tp_str*/
0, /*tp_getattro*/
0, /*tp_setattro*/
0, /*tp_as_buffer*/
Py_TPFLAGS_DEFAULT, /*tp_flags*/
0, /*tp_doc*/
0, /*tp_traverse*/
0, /*tp_clear*/
0, /*tp_richcompare*/
0, /*tp_weaklistoffset*/
0, /*tp_iter*/
0, /*tp_iternext*/
SHA_methods, /* tp_methods */
SHA_members, /* tp_members */
SHA_getseters, /* tp_getset */
static PyType_Slot sha512_sha384_type_slots[] = {
{Py_tp_dealloc, SHA512_dealloc},
{Py_tp_methods, SHA_methods},
{Py_tp_members, SHA_members},
{Py_tp_getset, SHA_getseters},
{0,0}
};
static PyTypeObject SHA512type = {
PyVarObject_HEAD_INIT(NULL, 0)
"_sha512.sha512", /*tp_name*/
sizeof(SHAobject), /*tp_basicsize*/
0, /*tp_itemsize*/
/* methods */
SHA512_dealloc, /*tp_dealloc*/
0, /*tp_vectorcall_offset*/
0, /*tp_getattr*/
0, /*tp_setattr*/
0, /*tp_as_async*/
0, /*tp_repr*/
0, /*tp_as_number*/
0, /*tp_as_sequence*/
0, /*tp_as_mapping*/
0, /*tp_hash*/
0, /*tp_call*/
0, /*tp_str*/
0, /*tp_getattro*/
0, /*tp_setattro*/
0, /*tp_as_buffer*/
Py_TPFLAGS_DEFAULT, /*tp_flags*/
0, /*tp_doc*/
0, /*tp_traverse*/
0, /*tp_clear*/
0, /*tp_richcompare*/
0, /*tp_weaklistoffset*/
0, /*tp_iter*/
0, /*tp_iternext*/
SHA_methods, /* tp_methods */
SHA_members, /* tp_members */
SHA_getseters, /* tp_getset */
static PyType_Spec sha512_sha384_type_spec = {
.name = "_sha512.sha384",
.basicsize = sizeof(SHAobject),
.flags = Py_TPFLAGS_DEFAULT,
.slots = sha512_sha384_type_slots
};
static PyType_Slot sha512_sha512_type_slots[] = {
{Py_tp_dealloc, SHA512_dealloc},
{Py_tp_methods, SHA_methods},
{Py_tp_members, SHA_members},
{Py_tp_getset, SHA_getseters},
{0,0}
};
// Using PyType_GetModuleState() on this type is safe since
// it cannot be subclassed: it does not have the Py_TPFLAGS_BASETYPE flag.
static PyType_Spec sha512_sha512_type_spec = {
.name = "_sha512.sha512",
.basicsize = sizeof(SHAobject),
.flags = Py_TPFLAGS_DEFAULT,
.slots = sha512_sha512_type_slots
};
/* The single module-level function: new() */
@ -662,10 +642,12 @@ _sha512_sha512_impl(PyObject *module, PyObject *string, int usedforsecurity)
SHAobject *new;
Py_buffer buf;
SHA512State *st = sha512_get_state(module);
if (string)
GET_BUFFER_VIEW_OR_ERROUT(string, &buf);
if ((new = newSHA512object()) == NULL) {
if ((new = newSHA512object(st)) == NULL) {
if (string)
PyBuffer_Release(&buf);
return NULL;
@ -704,10 +686,12 @@ _sha512_sha384_impl(PyObject *module, PyObject *string, int usedforsecurity)
SHAobject *new;
Py_buffer buf;
SHA512State *st = sha512_get_state(module);
if (string)
GET_BUFFER_VIEW_OR_ERROUT(string, &buf);
if ((new = newSHA384object()) == NULL) {
if ((new = newSHA384object(st)) == NULL) {
if (string)
PyBuffer_Release(&buf);
return NULL;
@ -738,43 +722,80 @@ static struct PyMethodDef SHA_functions[] = {
{NULL, NULL} /* Sentinel */
};
static int
_sha512_traverse(PyObject *module, visitproc visit, void *arg)
{
SHA512State *state = sha512_get_state(module);
Py_VISIT(state->sha384_type);
Py_VISIT(state->sha512_type);
return 0;
}
static int
_sha512_clear(PyObject *module)
{
SHA512State *state = sha512_get_state(module);
Py_CLEAR(state->sha384_type);
Py_CLEAR(state->sha512_type);
return 0;
}
static void
_sha512_free(void *module)
{
_sha512_clear((PyObject *)module);
}
/* Initialize this module. */
static int
_sha512_exec(PyObject *m)
{
SHA512State* st = sha512_get_state(m);
st->sha384_type = (PyTypeObject *)PyType_FromModuleAndSpec(
m, &sha512_sha384_type_spec, NULL);
st->sha512_type = (PyTypeObject *)PyType_FromModuleAndSpec(
m, &sha512_sha512_type_spec, NULL);
if (st->sha384_type == NULL || st->sha512_type == NULL) {
return -1;
}
Py_INCREF(st->sha384_type);
if (PyModule_AddObject(m, "SHA384Type", (PyObject *)st->sha384_type) < 0) {
Py_DECREF(st->sha384_type);
return -1;
}
Py_INCREF(st->sha512_type);
if (PyModule_AddObject(m, "SHA384Type", (PyObject *)st->sha512_type) < 0) {
Py_DECREF(st->sha512_type);
return -1;
}
return 0;
}
static PyModuleDef_Slot _sha512_slots[] = {
{Py_mod_exec, _sha512_exec},
{0, NULL}
};
static struct PyModuleDef _sha512module = {
PyModuleDef_HEAD_INIT,
"_sha512",
NULL,
-1,
SHA_functions,
NULL,
NULL,
NULL,
NULL
.m_name = "_sha512",
.m_size = sizeof(SHA512State),
.m_methods = SHA_functions,
.m_slots = _sha512_slots,
.m_traverse = _sha512_traverse,
.m_clear = _sha512_clear,
.m_free = _sha512_free
};
PyMODINIT_FUNC
PyInit__sha512(void)
{
PyObject *m;
Py_SET_TYPE(&SHA384type, &PyType_Type);
if (PyType_Ready(&SHA384type) < 0) {
return NULL;
}
Py_SET_TYPE(&SHA512type, &PyType_Type);
if (PyType_Ready(&SHA512type) < 0) {
return NULL;
}
m = PyModule_Create(&_sha512module);
if (m == NULL) {
return NULL;
}
Py_INCREF((PyObject *)&SHA384type);
PyModule_AddObject(m, "SHA384Type", (PyObject *)&SHA384type);
Py_INCREF((PyObject *)&SHA512type);
PyModule_AddObject(m, "SHA512Type", (PyObject *)&SHA512type);
return m;
return PyModuleDef_Init(&_sha512module);
}