mirror of
https://github.com/python/cpython.git
synced 2025-07-24 11:44:31 +00:00
ANSI-fied sources, converted to four-space indentation.
Converted to PyArg_ParseTuple() with method names to get better error messages.
This commit is contained in:
Fred Drake
parent
edabdc1e9e
commit
2c4a3dceaf
1 changed files with 147 additions and 178 deletions
|
|
@ -55,20 +55,18 @@ typedef unsigned int SHA_INT32; /* 32-bit integer */
|
|||
/* The structure for storing SHS info */
|
||||
|
||||
typedef struct {
|
||||
PyObject_HEAD
|
||||
SHA_INT32 digest[5]; /* Message digest */
|
||||
SHA_INT32 count_lo, count_hi; /* 64-bit bit count */
|
||||
SHA_BYTE data[SHA_BLOCKSIZE]; /* SHA data buffer */
|
||||
int Endianness;
|
||||
int local; /* unprocessed amount in data */
|
||||
PyObject_HEAD
|
||||
SHA_INT32 digest[5]; /* Message digest */
|
||||
SHA_INT32 count_lo, count_hi; /* 64-bit bit count */
|
||||
SHA_BYTE data[SHA_BLOCKSIZE]; /* SHA data buffer */
|
||||
int Endianness;
|
||||
int local; /* unprocessed amount in data */
|
||||
} SHAobject;
|
||||
|
||||
/* When run on a little-endian CPU we need to perform byte reversal on an
|
||||
array of longwords. */
|
||||
|
||||
static void longReverse(buffer, byteCount, Endianness)
|
||||
SHA_INT32 *buffer;
|
||||
int byteCount, Endianness;
|
||||
static void longReverse(SHA_INT32 *buffer, int byteCount, int Endianness)
|
||||
{
|
||||
SHA_INT32 value;
|
||||
|
||||
|
|
@ -76,8 +74,7 @@ static void longReverse(buffer, byteCount, Endianness)
|
|||
return;
|
||||
|
||||
byteCount /= sizeof(*buffer);
|
||||
while( byteCount-- )
|
||||
{
|
||||
while (byteCount--) {
|
||||
value = *buffer;
|
||||
value = ( ( value & 0xFF00FF00L ) >> 8 ) | \
|
||||
( ( value & 0x00FF00FFL ) << 8 );
|
||||
|
|
@ -85,15 +82,14 @@ static void longReverse(buffer, byteCount, Endianness)
|
|||
}
|
||||
}
|
||||
|
||||
static void SHAcopy(src, dest)
|
||||
SHAobject *src, *dest;
|
||||
static void SHAcopy(SHAobject *src, SHAobject *dest)
|
||||
{
|
||||
dest->Endianness = src->Endianness;
|
||||
dest->local = src->local;
|
||||
dest->count_lo = src->count_lo;
|
||||
dest->count_hi = src->count_hi;
|
||||
memcpy(dest->digest, src->digest, sizeof(src->digest));
|
||||
memcpy(dest->data, src->data, sizeof(src->data));
|
||||
dest->Endianness = src->Endianness;
|
||||
dest->local = src->local;
|
||||
dest->count_lo = src->count_lo;
|
||||
dest->count_hi = src->count_hi;
|
||||
memcpy(dest->digest, src->digest, sizeof(src->digest));
|
||||
memcpy(dest->data, src->data, sizeof(src->data));
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -173,8 +169,7 @@ static void SHAcopy(src, dest)
|
|||
/* do SHA transformation */
|
||||
|
||||
static void
|
||||
sha_transform(sha_info)
|
||||
SHAobject *sha_info;
|
||||
sha_transform(SHAobject *sha_info)
|
||||
{
|
||||
int i;
|
||||
SHA_INT32 T, A, B, C, D, E, W[80], *WP;
|
||||
|
|
@ -235,8 +230,7 @@ sha_transform(sha_info)
|
|||
/* initialize the SHA digest */
|
||||
|
||||
static void
|
||||
sha_init(sha_info)
|
||||
SHAobject *sha_info;
|
||||
sha_init(SHAobject *sha_info)
|
||||
{
|
||||
TestEndianness(sha_info->Endianness)
|
||||
|
||||
|
|
@ -253,41 +247,38 @@ sha_init(sha_info)
|
|||
/* update the SHA digest */
|
||||
|
||||
static void
|
||||
sha_update(sha_info, buffer, count)
|
||||
SHAobject *sha_info;
|
||||
SHA_BYTE *buffer;
|
||||
int count;
|
||||
sha_update(SHAobject *sha_info, SHA_BYTE *buffer, int count)
|
||||
{
|
||||
int i;
|
||||
SHA_INT32 clo;
|
||||
|
||||
clo = sha_info->count_lo + ((SHA_INT32) count << 3);
|
||||
if (clo < sha_info->count_lo) {
|
||||
++sha_info->count_hi;
|
||||
++sha_info->count_hi;
|
||||
}
|
||||
sha_info->count_lo = clo;
|
||||
sha_info->count_hi += (SHA_INT32) count >> 29;
|
||||
if (sha_info->local) {
|
||||
i = SHA_BLOCKSIZE - sha_info->local;
|
||||
if (i > count) {
|
||||
i = count;
|
||||
}
|
||||
memcpy(((SHA_BYTE *) sha_info->data) + sha_info->local,
|
||||
buffer, i);
|
||||
count -= i;
|
||||
buffer += i;
|
||||
sha_info->local += i;
|
||||
if (sha_info->local == SHA_BLOCKSIZE) {
|
||||
sha_transform(sha_info);
|
||||
} else {
|
||||
return;
|
||||
}
|
||||
i = SHA_BLOCKSIZE - sha_info->local;
|
||||
if (i > count) {
|
||||
i = count;
|
||||
}
|
||||
memcpy(((SHA_BYTE *) sha_info->data) + sha_info->local, buffer, i);
|
||||
count -= i;
|
||||
buffer += i;
|
||||
sha_info->local += i;
|
||||
if (sha_info->local == SHA_BLOCKSIZE) {
|
||||
sha_transform(sha_info);
|
||||
}
|
||||
else {
|
||||
return;
|
||||
}
|
||||
}
|
||||
while (count >= SHA_BLOCKSIZE) {
|
||||
memcpy(sha_info->data, buffer, SHA_BLOCKSIZE);
|
||||
buffer += SHA_BLOCKSIZE;
|
||||
count -= SHA_BLOCKSIZE;
|
||||
sha_transform(sha_info);
|
||||
memcpy(sha_info->data, buffer, SHA_BLOCKSIZE);
|
||||
buffer += SHA_BLOCKSIZE;
|
||||
count -= SHA_BLOCKSIZE;
|
||||
sha_transform(sha_info);
|
||||
}
|
||||
memcpy(sha_info->data, buffer, count);
|
||||
sha_info->local = count;
|
||||
|
|
@ -296,9 +287,7 @@ sha_update(sha_info, buffer, count)
|
|||
/* finish computing the SHA digest */
|
||||
|
||||
static void
|
||||
sha_final(digest, sha_info)
|
||||
unsigned char digest[20];
|
||||
SHAobject *sha_info;
|
||||
sha_final(unsigned char digest[20], SHAobject *sha_info)
|
||||
{
|
||||
int count;
|
||||
SHA_INT32 lo_bit_count, hi_bit_count;
|
||||
|
|
@ -307,15 +296,13 @@ sha_final(digest, sha_info)
|
|||
hi_bit_count = sha_info->count_hi;
|
||||
count = (int) ((lo_bit_count >> 3) & 0x3f);
|
||||
((SHA_BYTE *) sha_info->data)[count++] = 0x80;
|
||||
if (count > SHA_BLOCKSIZE - 8)
|
||||
{
|
||||
if (count > SHA_BLOCKSIZE - 8) {
|
||||
memset(((SHA_BYTE *) sha_info->data) + count, 0,
|
||||
SHA_BLOCKSIZE - count);
|
||||
sha_transform(sha_info);
|
||||
memset((SHA_BYTE *) sha_info->data, 0, SHA_BLOCKSIZE - 8);
|
||||
}
|
||||
else
|
||||
{
|
||||
else {
|
||||
memset(((SHA_BYTE *) sha_info->data) + count, 0,
|
||||
SHA_BLOCKSIZE - 8 - count);
|
||||
}
|
||||
|
|
@ -365,16 +352,15 @@ staticforward PyTypeObject SHAtype;
|
|||
static SHAobject *
|
||||
newSHAobject()
|
||||
{
|
||||
return (SHAobject *)PyObject_New(SHAobject, &SHAtype);
|
||||
return (SHAobject *)PyObject_New(SHAobject, &SHAtype);
|
||||
}
|
||||
|
||||
/* Internal methods for a hashing object */
|
||||
|
||||
static void
|
||||
SHA_dealloc(ptr)
|
||||
PyObject *ptr;
|
||||
SHA_dealloc(PyObject *ptr)
|
||||
{
|
||||
PyObject_Del(ptr);
|
||||
PyObject_Del(ptr);
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -384,131 +370,118 @@ static char SHA_copy__doc__[] =
|
|||
"Return a copy of the hashing object.";
|
||||
|
||||
static PyObject *
|
||||
SHA_copy(self, args)
|
||||
SHAobject *self;
|
||||
PyObject *args;
|
||||
SHA_copy(SHAobject *self, PyObject *args)
|
||||
{
|
||||
SHAobject *newobj;
|
||||
SHAobject *newobj;
|
||||
|
||||
if (!PyArg_NoArgs(args)) {
|
||||
return NULL;
|
||||
}
|
||||
if (!PyArg_ParseTuple(args, ":copy")) {
|
||||
return NULL;
|
||||
}
|
||||
if ( (newobj = newSHAobject())==NULL)
|
||||
return NULL;
|
||||
|
||||
if ( (newobj = newSHAobject())==NULL)
|
||||
return NULL;
|
||||
|
||||
SHAcopy(self, newobj);
|
||||
return (PyObject *)newobj;
|
||||
SHAcopy(self, newobj);
|
||||
return (PyObject *)newobj;
|
||||
}
|
||||
|
||||
static char SHA_digest__doc__[] =
|
||||
"Return the digest value as a string of binary data.";
|
||||
|
||||
static PyObject *
|
||||
SHA_digest(self, args)
|
||||
SHAobject *self;
|
||||
PyObject *args;
|
||||
SHA_digest(SHAobject *self, PyObject *args)
|
||||
{
|
||||
unsigned char digest[SHA_DIGESTSIZE];
|
||||
SHAobject temp;
|
||||
unsigned char digest[SHA_DIGESTSIZE];
|
||||
SHAobject temp;
|
||||
|
||||
if (!PyArg_NoArgs(args))
|
||||
return NULL;
|
||||
if (!PyArg_ParseTuple(args, ":digest"))
|
||||
return NULL;
|
||||
|
||||
SHAcopy(self, &temp);
|
||||
sha_final(digest, &temp);
|
||||
return PyString_FromStringAndSize((const char *)digest, sizeof(digest));
|
||||
SHAcopy(self, &temp);
|
||||
sha_final(digest, &temp);
|
||||
return PyString_FromStringAndSize((const char *)digest, sizeof(digest));
|
||||
}
|
||||
|
||||
static char SHA_hexdigest__doc__[] =
|
||||
"Return the digest value as a string of hexadecimal digits.";
|
||||
|
||||
static PyObject *
|
||||
SHA_hexdigest(self, args)
|
||||
SHAobject *self;
|
||||
PyObject *args;
|
||||
SHA_hexdigest(SHAobject *self, PyObject *args)
|
||||
{
|
||||
unsigned char digest[SHA_DIGESTSIZE];
|
||||
SHAobject temp;
|
||||
PyObject *retval;
|
||||
char *hex_digest;
|
||||
int i, j;
|
||||
unsigned char digest[SHA_DIGESTSIZE];
|
||||
SHAobject temp;
|
||||
PyObject *retval;
|
||||
char *hex_digest;
|
||||
int i, j;
|
||||
|
||||
if (!PyArg_NoArgs(args))
|
||||
return NULL;
|
||||
if (!PyArg_ParseTuple(args, ":hexdigest"))
|
||||
return NULL;
|
||||
|
||||
/* Get the raw (binary) digest value */
|
||||
SHAcopy(self, &temp);
|
||||
sha_final(digest, &temp);
|
||||
/* Get the raw (binary) digest value */
|
||||
SHAcopy(self, &temp);
|
||||
sha_final(digest, &temp);
|
||||
|
||||
/* Create a new string */
|
||||
retval = PyString_FromStringAndSize(NULL, sizeof(digest) * 2);
|
||||
hex_digest = PyString_AsString(retval);
|
||||
/* Create a new string */
|
||||
retval = PyString_FromStringAndSize(NULL, sizeof(digest) * 2);
|
||||
hex_digest = PyString_AsString(retval);
|
||||
|
||||
/* Make hex version of the digest */
|
||||
for(i=j=0; i<sizeof(digest); i++)
|
||||
{
|
||||
char c;
|
||||
c = digest[i] / 16; c = (c>9) ? c+'a'-10 : c + '0';
|
||||
hex_digest[j++] = c;
|
||||
c = digest[i] % 16; c = (c>9) ? c+'a'-10 : c + '0';
|
||||
hex_digest[j++] = c;
|
||||
}
|
||||
|
||||
return retval;
|
||||
/* Make hex version of the digest */
|
||||
for(i=j=0; i<sizeof(digest); i++) {
|
||||
char c;
|
||||
c = digest[i] / 16; c = (c>9) ? c+'a'-10 : c + '0';
|
||||
hex_digest[j++] = c;
|
||||
c = digest[i] % 16; c = (c>9) ? c+'a'-10 : c + '0';
|
||||
hex_digest[j++] = c;
|
||||
}
|
||||
return retval;
|
||||
}
|
||||
|
||||
static char SHA_update__doc__[] =
|
||||
"Update this hashing object's state with the provided string.";
|
||||
|
||||
static PyObject *
|
||||
SHA_update(self, args)
|
||||
SHAobject *self;
|
||||
PyObject *args;
|
||||
SHA_update(SHAobject *self, PyObject *args)
|
||||
{
|
||||
unsigned char *cp;
|
||||
int len;
|
||||
unsigned char *cp;
|
||||
int len;
|
||||
|
||||
if (!PyArg_Parse(args, "s#", &cp, &len))
|
||||
return NULL;
|
||||
if (!PyArg_ParseTuple(args, "s#:update", &cp, &len))
|
||||
return NULL;
|
||||
|
||||
sha_update(self, cp, len);
|
||||
sha_update(self, cp, len);
|
||||
|
||||
Py_INCREF(Py_None);
|
||||
return Py_None;
|
||||
Py_INCREF(Py_None);
|
||||
return Py_None;
|
||||
}
|
||||
|
||||
static PyMethodDef SHA_methods[] = {
|
||||
{"copy", (PyCFunction)SHA_copy, 0, SHA_copy__doc__},
|
||||
{"digest", (PyCFunction)SHA_digest, 0, SHA_digest__doc__},
|
||||
{"hexdigest", (PyCFunction)SHA_hexdigest, 0, SHA_hexdigest__doc__},
|
||||
{"update", (PyCFunction)SHA_update, 0, SHA_update__doc__},
|
||||
{NULL, NULL} /* sentinel */
|
||||
{"copy", (PyCFunction)SHA_copy, METH_VARARGS, SHA_copy__doc__},
|
||||
{"digest", (PyCFunction)SHA_digest, METH_VARARGS, SHA_digest__doc__},
|
||||
{"hexdigest", (PyCFunction)SHA_hexdigest, METH_VARARGS, SHA_hexdigest__doc__},
|
||||
{"update", (PyCFunction)SHA_update, METH_VARARGS, SHA_update__doc__},
|
||||
{NULL, NULL} /* sentinel */
|
||||
};
|
||||
|
||||
static PyObject *
|
||||
SHA_getattr(self, name)
|
||||
PyObject *self;
|
||||
char *name;
|
||||
SHA_getattr(PyObject *self, char *name)
|
||||
{
|
||||
if (strcmp(name, "blocksize")==0)
|
||||
return PyInt_FromLong(1);
|
||||
if (strcmp(name, "digestsize")==0)
|
||||
return PyInt_FromLong(20);
|
||||
|
||||
return Py_FindMethod(SHA_methods, self, name);
|
||||
if (strcmp(name, "blocksize")==0)
|
||||
return PyInt_FromLong(1);
|
||||
if (strcmp(name, "digestsize")==0)
|
||||
return PyInt_FromLong(20);
|
||||
|
||||
return Py_FindMethod(SHA_methods, self, name);
|
||||
}
|
||||
|
||||
static PyTypeObject SHAtype = {
|
||||
PyObject_HEAD_INIT(NULL)
|
||||
0, /*ob_size*/
|
||||
"SHA", /*tp_name*/
|
||||
sizeof(SHAobject), /*tp_size*/
|
||||
0, /*tp_itemsize*/
|
||||
/* methods */
|
||||
SHA_dealloc, /*tp_dealloc*/
|
||||
0, /*tp_print*/
|
||||
SHA_getattr, /*tp_getattr*/
|
||||
PyObject_HEAD_INIT(NULL)
|
||||
0, /*ob_size*/
|
||||
"SHA", /*tp_name*/
|
||||
sizeof(SHAobject), /*tp_size*/
|
||||
0, /*tp_itemsize*/
|
||||
/* methods */
|
||||
SHA_dealloc, /*tp_dealloc*/
|
||||
0, /*tp_print*/
|
||||
SHA_getattr, /*tp_getattr*/
|
||||
};
|
||||
|
||||
|
||||
|
|
@ -520,44 +493,41 @@ static char SHA_new__doc__[] =
|
|||
" automatically hashed.";
|
||||
|
||||
static PyObject *
|
||||
SHA_new(self, args, kwdict)
|
||||
PyObject *self;
|
||||
PyObject *args;
|
||||
PyObject *kwdict;
|
||||
SHA_new(PyObject *self, PyObject *args, PyObject *kwdict)
|
||||
{
|
||||
static char *kwlist[] = {"string", NULL};
|
||||
SHAobject *new;
|
||||
unsigned char *cp = NULL;
|
||||
int len;
|
||||
static char *kwlist[] = {"string", NULL};
|
||||
SHAobject *new;
|
||||
unsigned char *cp = NULL;
|
||||
int len;
|
||||
|
||||
if ((new = newSHAobject()) == NULL)
|
||||
return NULL;
|
||||
if ((new = newSHAobject()) == NULL)
|
||||
return NULL;
|
||||
|
||||
if (!PyArg_ParseTupleAndKeywords(args, kwdict, "|s#:new", kwlist,
|
||||
&cp, &len)) {
|
||||
Py_DECREF(new);
|
||||
return NULL;
|
||||
}
|
||||
if (!PyArg_ParseTupleAndKeywords(args, kwdict, "|s#:new", kwlist,
|
||||
&cp, &len)) {
|
||||
Py_DECREF(new);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
sha_init(new);
|
||||
sha_init(new);
|
||||
|
||||
if (PyErr_Occurred()) {
|
||||
Py_DECREF(new);
|
||||
return NULL;
|
||||
}
|
||||
if (cp)
|
||||
sha_update(new, cp, len);
|
||||
if (PyErr_Occurred()) {
|
||||
Py_DECREF(new);
|
||||
return NULL;
|
||||
}
|
||||
if (cp)
|
||||
sha_update(new, cp, len);
|
||||
|
||||
return (PyObject *)new;
|
||||
return (PyObject *)new;
|
||||
}
|
||||
|
||||
|
||||
/* List of functions exported by this module */
|
||||
|
||||
static struct PyMethodDef SHA_functions[] = {
|
||||
{"new", (PyCFunction)SHA_new, METH_VARARGS|METH_KEYWORDS, SHA_new__doc__},
|
||||
{"sha", (PyCFunction)SHA_new, METH_VARARGS|METH_KEYWORDS, SHA_new__doc__},
|
||||
{NULL, NULL} /* Sentinel */
|
||||
{"new", (PyCFunction)SHA_new, METH_VARARGS|METH_KEYWORDS, SHA_new__doc__},
|
||||
{"sha", (PyCFunction)SHA_new, METH_VARARGS|METH_KEYWORDS, SHA_new__doc__},
|
||||
{NULL, NULL} /* Sentinel */
|
||||
};
|
||||
|
||||
|
||||
|
|
@ -570,20 +540,19 @@ static struct PyMethodDef SHA_functions[] = {
|
|||
void
|
||||
initsha()
|
||||
{
|
||||
PyObject *d, *m;
|
||||
PyObject *d, *m;
|
||||
|
||||
SHAtype.ob_type = &PyType_Type;
|
||||
m = Py_InitModule("sha", SHA_functions);
|
||||
SHAtype.ob_type = &PyType_Type;
|
||||
m = Py_InitModule("sha", SHA_functions);
|
||||
|
||||
/* Add some symbolic constants to the module */
|
||||
d = PyModule_GetDict(m);
|
||||
insint("blocksize", 1); /* For future use, in case some hash
|
||||
functions require an integral number of
|
||||
blocks */
|
||||
insint("digestsize", 20);
|
||||
/* Add some symbolic constants to the module */
|
||||
d = PyModule_GetDict(m);
|
||||
insint("blocksize", 1); /* For future use, in case some hash
|
||||
functions require an integral number of
|
||||
blocks */
|
||||
insint("digestsize", 20);
|
||||
|
||||
/* Check for errors */
|
||||
if (PyErr_Occurred())
|
||||
Py_FatalError("can't initialize module SHA");
|
||||
/* Check for errors */
|
||||
if (PyErr_Occurred())
|
||||
Py_FatalError("can't initialize module SHA");
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue