Revision 070fae6d0ff49e63bfd5f2bdc66f8eb1df3b6557 authored by Christian Heimes on 02 July 2019, 18:39:42 UTC, committed by Ned Deily on 02 July 2019, 18:42:08 UTC
ssl.match_hostname() no longer accepts IPv4 addresses with additional text after the address and only quad-dotted notation without trailing whitespaces. Some inet_aton() implementations ignore whitespace and all data after whitespace, e.g. '127.0.0.1 whatever'. Short notations like '127.1' for '127.0.0.1' were already filtered out. The bug was initially found by Dominik Czarnota and reported by Paul Kehrer. Signed-off-by: Christian Heimes <christian@python.org> https://bugs.python.org/issue37463
1 parent dcc0eb3
sha256module.c
/* SHA256 module */
/* This module provides an interface to NIST's SHA-256 and SHA-224 Algorithms */
/* See below for information about the original code this module was
based upon. Additional work performed by:
Andrew Kuchling (amk@amk.ca)
Greg Stein (gstein@lyra.org)
Trevor Perrin (trevp@trevp.net)
Copyright (C) 2005-2007 Gregory P. Smith (greg@krypto.org)
Licensed to PSF under a Contributor Agreement.
*/
/* SHA objects */
#include "Python.h"
#include "structmember.h"
#include "hashlib.h"
#include "pystrhex.h"
/*[clinic input]
module _sha256
class SHA256Type "SHAobject *" "&PyType_Type"
[clinic start generated code]*/
/*[clinic end generated code: output=da39a3ee5e6b4b0d input=71a39174d4f0a744]*/
/* Some useful types */
typedef unsigned char SHA_BYTE;
#if SIZEOF_INT == 4
typedef unsigned int SHA_INT32; /* 32-bit integer */
#else
/* not defined. compilation will die. */
#endif
/* The SHA block size and message digest sizes, in bytes */
#define SHA_BLOCKSIZE 64
#define SHA_DIGESTSIZE 32
/* The structure for storing SHA info */
typedef struct {
PyObject_HEAD
SHA_INT32 digest[8]; /* Message digest */
SHA_INT32 count_lo, count_hi; /* 64-bit bit count */
SHA_BYTE data[SHA_BLOCKSIZE]; /* SHA data buffer */
int local; /* unprocessed amount in data */
int digestsize;
} SHAobject;
#include "clinic/sha256module.c.h"
/* When run on a little-endian CPU we need to perform byte reversal on an
array of longwords. */
#if PY_LITTLE_ENDIAN
static void longReverse(SHA_INT32 *buffer, int byteCount)
{
SHA_INT32 value;
byteCount /= sizeof(*buffer);
while (byteCount--) {
value = *buffer;
value = ( ( value & 0xFF00FF00L ) >> 8 ) | \
( ( value & 0x00FF00FFL ) << 8 );
*buffer++ = ( value << 16 ) | ( value >> 16 );
}
}
#endif
static void SHAcopy(SHAobject *src, SHAobject *dest)
{
dest->local = src->local;
dest->digestsize = src->digestsize;
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));
}
/* ------------------------------------------------------------------------
*
* This code for the SHA-256 algorithm was noted as public domain. The
* original headers are pasted below.
*
* Several changes have been made to make it more compatible with the
* Python environment and desired interface.
*
*/
/* LibTomCrypt, modular cryptographic library -- Tom St Denis
*
* LibTomCrypt is a library that provides various cryptographic
* algorithms in a highly modular and flexible manner.
*
* The library is free for all purposes without any express
* guarantee it works.
*
* Tom St Denis, tomstdenis@iahu.ca, http://libtom.org
*/
/* SHA256 by Tom St Denis */
/* Various logical functions */
#define ROR(x, y)\
( ((((unsigned long)(x)&0xFFFFFFFFUL)>>(unsigned long)((y)&31)) | \
((unsigned long)(x)<<(unsigned long)(32-((y)&31)))) & 0xFFFFFFFFUL)
#define Ch(x,y,z) (z ^ (x & (y ^ z)))
#define Maj(x,y,z) (((x | y) & z) | (x & y))
#define S(x, n) ROR((x),(n))
#define R(x, n) (((x)&0xFFFFFFFFUL)>>(n))
#define Sigma0(x) (S(x, 2) ^ S(x, 13) ^ S(x, 22))
#define Sigma1(x) (S(x, 6) ^ S(x, 11) ^ S(x, 25))
#define Gamma0(x) (S(x, 7) ^ S(x, 18) ^ R(x, 3))
#define Gamma1(x) (S(x, 17) ^ S(x, 19) ^ R(x, 10))
static void
sha_transform(SHAobject *sha_info)
{
int i;
SHA_INT32 S[8], W[64], t0, t1;
memcpy(W, sha_info->data, sizeof(sha_info->data));
#if PY_LITTLE_ENDIAN
longReverse(W, (int)sizeof(sha_info->data));
#endif
for (i = 16; i < 64; ++i) {
W[i] = Gamma1(W[i - 2]) + W[i - 7] + Gamma0(W[i - 15]) + W[i - 16];
}
for (i = 0; i < 8; ++i) {
S[i] = sha_info->digest[i];
}
/* Compress */
#define RND(a,b,c,d,e,f,g,h,i,ki) \
t0 = h + Sigma1(e) + Ch(e, f, g) + ki + W[i]; \
t1 = Sigma0(a) + Maj(a, b, c); \
d += t0; \
h = t0 + t1;
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],0,0x428a2f98);
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],1,0x71374491);
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],2,0xb5c0fbcf);
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],3,0xe9b5dba5);
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],4,0x3956c25b);
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],5,0x59f111f1);
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],6,0x923f82a4);
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],7,0xab1c5ed5);
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],8,0xd807aa98);
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],9,0x12835b01);
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],10,0x243185be);
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],11,0x550c7dc3);
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],12,0x72be5d74);
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],13,0x80deb1fe);
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],14,0x9bdc06a7);
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],15,0xc19bf174);
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],16,0xe49b69c1);
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],17,0xefbe4786);
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],18,0x0fc19dc6);
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],19,0x240ca1cc);
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],20,0x2de92c6f);
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],21,0x4a7484aa);
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],22,0x5cb0a9dc);
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],23,0x76f988da);
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],24,0x983e5152);
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],25,0xa831c66d);
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],26,0xb00327c8);
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],27,0xbf597fc7);
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],28,0xc6e00bf3);
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],29,0xd5a79147);
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],30,0x06ca6351);
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],31,0x14292967);
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],32,0x27b70a85);
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],33,0x2e1b2138);
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],34,0x4d2c6dfc);
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],35,0x53380d13);
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],36,0x650a7354);
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],37,0x766a0abb);
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],38,0x81c2c92e);
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],39,0x92722c85);
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],40,0xa2bfe8a1);
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],41,0xa81a664b);
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],42,0xc24b8b70);
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],43,0xc76c51a3);
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],44,0xd192e819);
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],45,0xd6990624);
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],46,0xf40e3585);
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],47,0x106aa070);
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],48,0x19a4c116);
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],49,0x1e376c08);
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],50,0x2748774c);
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],51,0x34b0bcb5);
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],52,0x391c0cb3);
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],53,0x4ed8aa4a);
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],54,0x5b9cca4f);
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],55,0x682e6ff3);
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],56,0x748f82ee);
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],57,0x78a5636f);
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],58,0x84c87814);
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],59,0x8cc70208);
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],60,0x90befffa);
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],61,0xa4506ceb);
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],62,0xbef9a3f7);
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],63,0xc67178f2);
#undef RND
/* feedback */
for (i = 0; i < 8; i++) {
sha_info->digest[i] = sha_info->digest[i] + S[i];
}
}
/* initialize the SHA digest */
static void
sha_init(SHAobject *sha_info)
{
sha_info->digest[0] = 0x6A09E667L;
sha_info->digest[1] = 0xBB67AE85L;
sha_info->digest[2] = 0x3C6EF372L;
sha_info->digest[3] = 0xA54FF53AL;
sha_info->digest[4] = 0x510E527FL;
sha_info->digest[5] = 0x9B05688CL;
sha_info->digest[6] = 0x1F83D9ABL;
sha_info->digest[7] = 0x5BE0CD19L;
sha_info->count_lo = 0L;
sha_info->count_hi = 0L;
sha_info->local = 0;
sha_info->digestsize = 32;
}
static void
sha224_init(SHAobject *sha_info)
{
sha_info->digest[0] = 0xc1059ed8L;
sha_info->digest[1] = 0x367cd507L;
sha_info->digest[2] = 0x3070dd17L;
sha_info->digest[3] = 0xf70e5939L;
sha_info->digest[4] = 0xffc00b31L;
sha_info->digest[5] = 0x68581511L;
sha_info->digest[6] = 0x64f98fa7L;
sha_info->digest[7] = 0xbefa4fa4L;
sha_info->count_lo = 0L;
sha_info->count_hi = 0L;
sha_info->local = 0;
sha_info->digestsize = 28;
}
/* update the SHA digest */
static void
sha_update(SHAobject *sha_info, SHA_BYTE *buffer, Py_ssize_t count)
{
Py_ssize_t 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_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 += (int)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, count);
sha_info->local = (int)count;
}
/* finish computing the SHA digest */
static void
sha_final(unsigned char digest[SHA_DIGESTSIZE], SHAobject *sha_info)
{
int count;
SHA_INT32 lo_bit_count, hi_bit_count;
lo_bit_count = sha_info->count_lo;
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) {
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 {
memset(((SHA_BYTE *) sha_info->data) + count, 0,
SHA_BLOCKSIZE - 8 - count);
}
/* GJS: note that we add the hi/lo in big-endian. sha_transform will
swap these values into host-order. */
sha_info->data[56] = (hi_bit_count >> 24) & 0xff;
sha_info->data[57] = (hi_bit_count >> 16) & 0xff;
sha_info->data[58] = (hi_bit_count >> 8) & 0xff;
sha_info->data[59] = (hi_bit_count >> 0) & 0xff;
sha_info->data[60] = (lo_bit_count >> 24) & 0xff;
sha_info->data[61] = (lo_bit_count >> 16) & 0xff;
sha_info->data[62] = (lo_bit_count >> 8) & 0xff;
sha_info->data[63] = (lo_bit_count >> 0) & 0xff;
sha_transform(sha_info);
digest[ 0] = (unsigned char) ((sha_info->digest[0] >> 24) & 0xff);
digest[ 1] = (unsigned char) ((sha_info->digest[0] >> 16) & 0xff);
digest[ 2] = (unsigned char) ((sha_info->digest[0] >> 8) & 0xff);
digest[ 3] = (unsigned char) ((sha_info->digest[0] ) & 0xff);
digest[ 4] = (unsigned char) ((sha_info->digest[1] >> 24) & 0xff);
digest[ 5] = (unsigned char) ((sha_info->digest[1] >> 16) & 0xff);
digest[ 6] = (unsigned char) ((sha_info->digest[1] >> 8) & 0xff);
digest[ 7] = (unsigned char) ((sha_info->digest[1] ) & 0xff);
digest[ 8] = (unsigned char) ((sha_info->digest[2] >> 24) & 0xff);
digest[ 9] = (unsigned char) ((sha_info->digest[2] >> 16) & 0xff);
digest[10] = (unsigned char) ((sha_info->digest[2] >> 8) & 0xff);
digest[11] = (unsigned char) ((sha_info->digest[2] ) & 0xff);
digest[12] = (unsigned char) ((sha_info->digest[3] >> 24) & 0xff);
digest[13] = (unsigned char) ((sha_info->digest[3] >> 16) & 0xff);
digest[14] = (unsigned char) ((sha_info->digest[3] >> 8) & 0xff);
digest[15] = (unsigned char) ((sha_info->digest[3] ) & 0xff);
digest[16] = (unsigned char) ((sha_info->digest[4] >> 24) & 0xff);
digest[17] = (unsigned char) ((sha_info->digest[4] >> 16) & 0xff);
digest[18] = (unsigned char) ((sha_info->digest[4] >> 8) & 0xff);
digest[19] = (unsigned char) ((sha_info->digest[4] ) & 0xff);
digest[20] = (unsigned char) ((sha_info->digest[5] >> 24) & 0xff);
digest[21] = (unsigned char) ((sha_info->digest[5] >> 16) & 0xff);
digest[22] = (unsigned char) ((sha_info->digest[5] >> 8) & 0xff);
digest[23] = (unsigned char) ((sha_info->digest[5] ) & 0xff);
digest[24] = (unsigned char) ((sha_info->digest[6] >> 24) & 0xff);
digest[25] = (unsigned char) ((sha_info->digest[6] >> 16) & 0xff);
digest[26] = (unsigned char) ((sha_info->digest[6] >> 8) & 0xff);
digest[27] = (unsigned char) ((sha_info->digest[6] ) & 0xff);
digest[28] = (unsigned char) ((sha_info->digest[7] >> 24) & 0xff);
digest[29] = (unsigned char) ((sha_info->digest[7] >> 16) & 0xff);
digest[30] = (unsigned char) ((sha_info->digest[7] >> 8) & 0xff);
digest[31] = (unsigned char) ((sha_info->digest[7] ) & 0xff);
}
/*
* End of copied SHA code.
*
* ------------------------------------------------------------------------
*/
static PyTypeObject SHA224type;
static PyTypeObject SHA256type;
static SHAobject *
newSHA224object(void)
{
return (SHAobject *)PyObject_New(SHAobject, &SHA224type);
}
static SHAobject *
newSHA256object(void)
{
return (SHAobject *)PyObject_New(SHAobject, &SHA256type);
}
/* Internal methods for a hash object */
static void
SHA_dealloc(PyObject *ptr)
{
PyObject_Del(ptr);
}
/* External methods for a hash object */
/*[clinic input]
SHA256Type.copy
Return a copy of the hash object.
[clinic start generated code]*/
static PyObject *
SHA256Type_copy_impl(SHAobject *self)
/*[clinic end generated code: output=1a8bbd66a0c9c168 input=f58840a618d4f2a7]*/
{
SHAobject *newobj;
if (Py_TYPE(self) == &SHA256type) {
if ( (newobj = newSHA256object())==NULL)
return NULL;
} else {
if ( (newobj = newSHA224object())==NULL)
return NULL;
}
SHAcopy(self, newobj);
return (PyObject *)newobj;
}
/*[clinic input]
SHA256Type.digest
Return the digest value as a bytes object.
[clinic start generated code]*/
static PyObject *
SHA256Type_digest_impl(SHAobject *self)
/*[clinic end generated code: output=46616a5e909fbc3d input=f1f4cfea5cbde35c]*/
{
unsigned char digest[SHA_DIGESTSIZE];
SHAobject temp;
SHAcopy(self, &temp);
sha_final(digest, &temp);
return PyBytes_FromStringAndSize((const char *)digest, self->digestsize);
}
/*[clinic input]
SHA256Type.hexdigest
Return the digest value as a string of hexadecimal digits.
[clinic start generated code]*/
static PyObject *
SHA256Type_hexdigest_impl(SHAobject *self)
/*[clinic end generated code: output=725f8a7041ae97f3 input=0cc4c714693010d1]*/
{
unsigned char digest[SHA_DIGESTSIZE];
SHAobject temp;
/* Get the raw (binary) digest value */
SHAcopy(self, &temp);
sha_final(digest, &temp);
return _Py_strhex((const char *)digest, self->digestsize);
}
/*[clinic input]
SHA256Type.update
obj: object
/
Update this hash object's state with the provided string.
[clinic start generated code]*/
static PyObject *
SHA256Type_update(SHAobject *self, PyObject *obj)
/*[clinic end generated code: output=0967fb2860c66af7 input=b2d449d5b30f0f5a]*/
{
Py_buffer buf;
GET_BUFFER_VIEW_OR_ERROUT(obj, &buf);
sha_update(self, buf.buf, buf.len);
PyBuffer_Release(&buf);
Py_RETURN_NONE;
}
static PyMethodDef SHA_methods[] = {
SHA256TYPE_COPY_METHODDEF
SHA256TYPE_DIGEST_METHODDEF
SHA256TYPE_HEXDIGEST_METHODDEF
SHA256TYPE_UPDATE_METHODDEF
{NULL, NULL} /* sentinel */
};
static PyObject *
SHA256_get_block_size(PyObject *self, void *closure)
{
return PyLong_FromLong(SHA_BLOCKSIZE);
}
static PyObject *
SHA256_get_name(PyObject *self, void *closure)
{
if (((SHAobject *)self)->digestsize == 32)
return PyUnicode_FromStringAndSize("sha256", 6);
else
return PyUnicode_FromStringAndSize("sha224", 6);
}
static PyGetSetDef SHA_getseters[] = {
{"block_size",
(getter)SHA256_get_block_size, NULL,
NULL,
NULL},
{"name",
(getter)SHA256_get_name, NULL,
NULL,
NULL},
{NULL} /* Sentinel */
};
static PyMemberDef SHA_members[] = {
{"digest_size", T_INT, offsetof(SHAobject, digestsize), READONLY, NULL},
{NULL} /* Sentinel */
};
static PyTypeObject SHA224type = {
PyVarObject_HEAD_INIT(NULL, 0)
"_sha256.sha224", /*tp_name*/
sizeof(SHAobject), /*tp_basicsize*/
0, /*tp_itemsize*/
/* methods */
SHA_dealloc, /*tp_dealloc*/
0, /*tp_print*/
0, /*tp_getattr*/
0, /*tp_setattr*/
0, /*tp_reserved*/
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 PyTypeObject SHA256type = {
PyVarObject_HEAD_INIT(NULL, 0)
"_sha256.sha256", /*tp_name*/
sizeof(SHAobject), /*tp_basicsize*/
0, /*tp_itemsize*/
/* methods */
SHA_dealloc, /*tp_dealloc*/
0, /*tp_print*/
0, /*tp_getattr*/
0, /*tp_setattr*/
0, /*tp_reserved*/
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 */
};
/* The single module-level function: new() */
/*[clinic input]
_sha256.sha256
string: object(c_default="NULL") = b''
Return a new SHA-256 hash object; optionally initialized with a string.
[clinic start generated code]*/
static PyObject *
_sha256_sha256_impl(PyObject *module, PyObject *string)
/*[clinic end generated code: output=fa644436dcea5c31 input=09cce3fb855056b2]*/
{
SHAobject *new;
Py_buffer buf;
if (string)
GET_BUFFER_VIEW_OR_ERROUT(string, &buf);
if ((new = newSHA256object()) == NULL) {
if (string)
PyBuffer_Release(&buf);
return NULL;
}
sha_init(new);
if (PyErr_Occurred()) {
Py_DECREF(new);
if (string)
PyBuffer_Release(&buf);
return NULL;
}
if (string) {
sha_update(new, buf.buf, buf.len);
PyBuffer_Release(&buf);
}
return (PyObject *)new;
}
/*[clinic input]
_sha256.sha224
string: object(c_default="NULL") = b''
Return a new SHA-224 hash object; optionally initialized with a string.
[clinic start generated code]*/
static PyObject *
_sha256_sha224_impl(PyObject *module, PyObject *string)
/*[clinic end generated code: output=21e3ba22c3404f93 input=27a04ba24c353a73]*/
{
SHAobject *new;
Py_buffer buf;
if (string)
GET_BUFFER_VIEW_OR_ERROUT(string, &buf);
if ((new = newSHA224object()) == NULL) {
if (string)
PyBuffer_Release(&buf);
return NULL;
}
sha224_init(new);
if (PyErr_Occurred()) {
Py_DECREF(new);
if (string)
PyBuffer_Release(&buf);
return NULL;
}
if (string) {
sha_update(new, buf.buf, buf.len);
PyBuffer_Release(&buf);
}
return (PyObject *)new;
}
/* List of functions exported by this module */
static struct PyMethodDef SHA_functions[] = {
_SHA256_SHA256_METHODDEF
_SHA256_SHA224_METHODDEF
{NULL, NULL} /* Sentinel */
};
/* Initialize this module. */
#define insint(n,v) { PyModule_AddIntConstant(m,n,v); }
static struct PyModuleDef _sha256module = {
PyModuleDef_HEAD_INIT,
"_sha256",
NULL,
-1,
SHA_functions,
NULL,
NULL,
NULL,
NULL
};
PyMODINIT_FUNC
PyInit__sha256(void)
{
PyObject *m;
Py_TYPE(&SHA224type) = &PyType_Type;
if (PyType_Ready(&SHA224type) < 0)
return NULL;
Py_TYPE(&SHA256type) = &PyType_Type;
if (PyType_Ready(&SHA256type) < 0)
return NULL;
m = PyModule_Create(&_sha256module);
if (m == NULL)
return NULL;
Py_INCREF((PyObject *)&SHA224type);
PyModule_AddObject(m, "SHA224Type", (PyObject *)&SHA224type);
Py_INCREF((PyObject *)&SHA256type);
PyModule_AddObject(m, "SHA256Type", (PyObject *)&SHA256type);
return m;
}
![swh spinner](/static/img/swh-spinner.gif)
Computing file changes ...