python, hg: tow outside the environment.

they've served us well, and can ride off into the sunset.

1 files changed, 0 insertions, 701 deletions

diff --git a/sys/src/cmd/python/Modules/sha256module.c b/sys/src/cmd/python/Modules/sha256module.c
deleted file mode 100644
index 0effb0734..000000000
--- a/sys/src/cmd/python/Modules/sha256module.c
+++ /dev/null
@@ -1,701 +0,0 @@
-/* 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   Gregory P. Smith (greg@electricrain.com)
-   Licensed to PSF under a Contributor Agreement.
-
-*/
-
-/* SHA objects */
-
-#include "Python.h"
-#include "structmember.h"
-
-
-/* Endianness testing and definitions */
-#define TestEndianness(variable) {int i=1; variable=PCT_BIG_ENDIAN;\
-	if (*((char*)&i)==1) variable=PCT_LITTLE_ENDIAN;}
-
-#define PCT_LITTLE_ENDIAN 1
-#define PCT_BIG_ENDIAN 0
-
-/* 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 Endianness;
-    int local;				/* unprocessed amount in data */
-    int digestsize;
-} SHAobject;
-
-/* When run on a little-endian CPU we need to perform byte reversal on an
-   array of longwords. */
-
-static void longReverse(SHA_INT32 *buffer, int byteCount, int Endianness)
-{
-    SHA_INT32 value;
-
-    if ( Endianness == PCT_BIG_ENDIAN )
-	return;
-
-    byteCount /= sizeof(*buffer);
-    while (byteCount--) {
-        value = *buffer;
-        value = ( ( value & 0xFF00FF00L ) >> 8  ) | \
-                ( ( value & 0x00FF00FFL ) << 8 );
-        *buffer++ = ( value << 16 ) | ( value >> 16 );
-    }
-}
-
-static void SHAcopy(SHAobject *src, SHAobject *dest)
-{
-    dest->Endianness = src->Endianness;
-    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
- * gurantee it works.
- *
- * Tom St Denis, tomstdenis@iahu.ca, http://libtomcrypt.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));
-    longReverse(W, (int)sizeof(sha_info->data), sha_info->Endianness);
-
-    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)
-{
-    TestEndianness(sha_info->Endianness)
-    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)
-{
-    TestEndianness(sha_info->Endianness)
-    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, 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_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;
-        }
-    }
-    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 = 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 */
-
-PyDoc_STRVAR(SHA256_copy__doc__, "Return a copy of the hash object.");
-
-static PyObject *
-SHA256_copy(SHAobject *self, PyObject *unused)
-{
-    SHAobject *newobj;
-
-    if (((PyObject*)self)->ob_type == &SHA256type) {
-        if ( (newobj = newSHA256object())==NULL)
-            return NULL;
-    } else {
-        if ( (newobj = newSHA224object())==NULL)
-            return NULL;
-    }
-
-    SHAcopy(self, newobj);
-    return (PyObject *)newobj;
-}
-
-PyDoc_STRVAR(SHA256_digest__doc__,
-"Return the digest value as a string of binary data.");
-
-static PyObject *
-SHA256_digest(SHAobject *self, PyObject *unused)
-{
-    unsigned char digest[SHA_DIGESTSIZE];
-    SHAobject temp;
-
-    SHAcopy(self, &temp);
-    sha_final(digest, &temp);
-    return PyString_FromStringAndSize((const char *)digest, self->digestsize);
-}
-
-PyDoc_STRVAR(SHA256_hexdigest__doc__,
-"Return the digest value as a string of hexadecimal digits.");
-
-static PyObject *
-SHA256_hexdigest(SHAobject *self, PyObject *unused)
-{
-    unsigned char digest[SHA_DIGESTSIZE];
-    SHAobject temp;
-    PyObject *retval;
-    char *hex_digest;
-    int i, j;
-
-    /* Get the raw (binary) digest value */
-    SHAcopy(self, &temp);
-    sha_final(digest, &temp);
-
-    /* Create a new string */
-    retval = PyString_FromStringAndSize(NULL, self->digestsize * 2);
-    if (!retval)
-	    return NULL;
-    hex_digest = PyString_AsString(retval);
-    if (!hex_digest) {
-	    Py_DECREF(retval);
-	    return NULL;
-    }
-
-    /* Make hex version of the digest */
-    for(i=j=0; i<self->digestsize; i++) {
-        char c;
-        c = (digest[i] >> 4) & 0xf;
-	c = (c>9) ? c+'a'-10 : c + '0';
-        hex_digest[j++] = c;
-        c = (digest[i] & 0xf);
-	c = (c>9) ? c+'a'-10 : c + '0';
-        hex_digest[j++] = c;
-    }
-    return retval;
-}
-
-PyDoc_STRVAR(SHA256_update__doc__,
-"Update this hash object's state with the provided string.");
-
-static PyObject *
-SHA256_update(SHAobject *self, PyObject *args)
-{
-    unsigned char *cp;
-    int len;
-
-    if (!PyArg_ParseTuple(args, "s#:update", &cp, &len))
-        return NULL;
-
-    sha_update(self, cp, len);
-
-    Py_INCREF(Py_None);
-    return Py_None;
-}
-
-static PyMethodDef SHA_methods[] = {
-    {"copy",	  (PyCFunction)SHA256_copy,      METH_NOARGS,  SHA256_copy__doc__},
-    {"digest",	  (PyCFunction)SHA256_digest,    METH_NOARGS,  SHA256_digest__doc__},
-    {"hexdigest", (PyCFunction)SHA256_hexdigest, METH_NOARGS,  SHA256_hexdigest__doc__},
-    {"update",	  (PyCFunction)SHA256_update,    METH_VARARGS, SHA256_update__doc__},
-    {NULL,	  NULL}		/* sentinel */
-};
-
-static PyObject *
-SHA256_get_block_size(PyObject *self, void *closure)
-{
-    return PyInt_FromLong(SHA_BLOCKSIZE);
-}
-
-static PyObject *
-SHA256_get_name(PyObject *self, void *closure)
-{
-    if (((SHAobject *)self)->digestsize == 32)
-        return PyString_FromStringAndSize("SHA256", 6);
-    else
-        return PyString_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},
-    /* the old md5 and sha modules support 'digest_size' as in PEP 247.
-     * the old sha module also supported 'digestsize'.  ugh. */
-    {"digestsize", T_INT, offsetof(SHAobject, digestsize), READONLY, NULL},
-    {NULL}  /* Sentinel */
-};
-
-static PyTypeObject SHA224type = {
-    PyObject_HEAD_INIT(NULL)
-    0,			/*ob_size*/
-    "_sha256.sha224",	/*tp_name*/
-    sizeof(SHAobject),	/*tp_size*/
-    0,			/*tp_itemsize*/
-    /* methods */
-    SHA_dealloc,	/*tp_dealloc*/
-    0,			/*tp_print*/
-    0,          	/*tp_getattr*/
-    0,                  /*tp_setattr*/
-    0,                  /*tp_compare*/
-    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 = {
-    PyObject_HEAD_INIT(NULL)
-    0,			/*ob_size*/
-    "_sha256.sha256",	/*tp_name*/
-    sizeof(SHAobject),	/*tp_size*/
-    0,			/*tp_itemsize*/
-    /* methods */
-    SHA_dealloc,	/*tp_dealloc*/
-    0,			/*tp_print*/
-    0,          	/*tp_getattr*/
-    0,                  /*tp_setattr*/
-    0,                  /*tp_compare*/
-    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() */
-
-PyDoc_STRVAR(SHA256_new__doc__,
-"Return a new SHA-256 hash object; optionally initialized with a string.");
-
-static PyObject *
-SHA256_new(PyObject *self, PyObject *args, PyObject *kwdict)
-{
-    static char *kwlist[] = {"string", NULL};
-    SHAobject *new;
-    unsigned char *cp = NULL;
-    int len;
-
-    if (!PyArg_ParseTupleAndKeywords(args, kwdict, "|s#:new", kwlist,
-                                     &cp, &len)) {
-        return NULL;
-    }
-
-    if ((new = newSHA256object()) == NULL)
-        return NULL;
-
-    sha_init(new);
-
-    if (PyErr_Occurred()) {
-        Py_DECREF(new);
-        return NULL;
-    }
-    if (cp)
-        sha_update(new, cp, len);
-
-    return (PyObject *)new;
-}
-
-PyDoc_STRVAR(SHA224_new__doc__,
-"Return a new SHA-224 hash object; optionally initialized with a string.");
-
-static PyObject *
-SHA224_new(PyObject *self, PyObject *args, PyObject *kwdict)
-{
-    static char *kwlist[] = {"string", NULL};
-    SHAobject *new;
-    unsigned char *cp = NULL;
-    int len;
-
-    if (!PyArg_ParseTupleAndKeywords(args, kwdict, "|s#:new", kwlist,
-                                     &cp, &len)) {
-        return NULL;
-    }
-
-    if ((new = newSHA224object()) == NULL)
-        return NULL;
-
-    sha224_init(new);
-
-    if (PyErr_Occurred()) {
-        Py_DECREF(new);
-        return NULL;
-    }
-    if (cp)
-        sha_update(new, cp, len);
-
-    return (PyObject *)new;
-}
-
-
-/* List of functions exported by this module */
-
-static struct PyMethodDef SHA_functions[] = {
-    {"sha256", (PyCFunction)SHA256_new, METH_VARARGS|METH_KEYWORDS, SHA256_new__doc__},
-    {"sha224", (PyCFunction)SHA224_new, METH_VARARGS|METH_KEYWORDS, SHA224_new__doc__},
-    {NULL,	NULL}		 /* Sentinel */
-};
-
-
-/* Initialize this module. */
-
-#define insint(n,v) { PyModule_AddIntConstant(m,n,v); }
-
-PyMODINIT_FUNC
-init_sha256(void)
-{
-    PyObject *m;
-
-    SHA224type.ob_type = &PyType_Type;
-    if (PyType_Ready(&SHA224type) < 0)
-        return;
-    SHA256type.ob_type = &PyType_Type;
-    if (PyType_Ready(&SHA256type) < 0)
-        return;
-    m = Py_InitModule("_sha256", SHA_functions);
-    if (m == NULL)
-	return;
-}