diff options
Diffstat (limited to 'Modules/sha512module.c')
| -rw-r--r-- | Modules/sha512module.c | 22 |
1 files changed, 6 insertions, 16 deletions
diff --git a/Modules/sha512module.c b/Modules/sha512module.c index 5536fd5..3e0f6ce 100644 --- a/Modules/sha512module.c +++ b/Modules/sha512module.c @@ -22,13 +22,6 @@ #ifdef PY_LONG_LONG /* If no PY_LONG_LONG, don't compile anything! */ -/* 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; @@ -52,7 +45,6 @@ typedef struct { SHA_INT64 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; @@ -60,13 +52,11 @@ typedef struct { /* When run on a little-endian CPU we need to perform byte reversal on an array of longwords. */ -static void longReverse(SHA_INT64 *buffer, int byteCount, int Endianness) +#if PY_LITTLE_ENDIAN +static void longReverse(SHA_INT64 *buffer, int byteCount) { SHA_INT64 value; - if ( Endianness == PCT_BIG_ENDIAN ) - return; - byteCount /= sizeof(*buffer); while (byteCount--) { value = *buffer; @@ -83,10 +73,10 @@ static void longReverse(SHA_INT64 *buffer, int byteCount, int Endianness) buffer++; } } +#endif 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; @@ -141,7 +131,9 @@ sha512_transform(SHAobject *sha_info) SHA_INT64 S[8], W[80], t0, t1; memcpy(W, sha_info->data, sizeof(sha_info->data)); - longReverse(W, (int)sizeof(sha_info->data), sha_info->Endianness); +#if PY_LITTLE_ENDIAN + longReverse(W, (int)sizeof(sha_info->data)); +#endif for (i = 16; i < 80; ++i) { W[i] = Gamma1(W[i - 2]) + W[i - 7] + Gamma0(W[i - 15]) + W[i - 16]; @@ -254,7 +246,6 @@ sha512_transform(SHAobject *sha_info) static void sha512_init(SHAobject *sha_info) { - TestEndianness(sha_info->Endianness) sha_info->digest[0] = Py_ULL(0x6a09e667f3bcc908); sha_info->digest[1] = Py_ULL(0xbb67ae8584caa73b); sha_info->digest[2] = Py_ULL(0x3c6ef372fe94f82b); @@ -272,7 +263,6 @@ sha512_init(SHAobject *sha_info) static void sha384_init(SHAobject *sha_info) { - TestEndianness(sha_info->Endianness) sha_info->digest[0] = Py_ULL(0xcbbb9d5dc1059ed8); sha_info->digest[1] = Py_ULL(0x629a292a367cd507); sha_info->digest[2] = Py_ULL(0x9159015a3070dd17); |