hash_buffer_pattern.c File Reference

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Functions
bytesInBuffer &	if (bytesInBuffer > 0)
	if (cbData >=SYMCRYPT_XXX_INPUT_BLOCK_SIZE)
	if (cbData > 0)

Function Documentation

if() [1/3]

bytesInBuffer & if	(	bytesInBuffer	,
		0
	)

Definition at line 26 of file hash_buffer_pattern.c.

    {
        SIZE_T freeInBuffer = SYMCRYPT_XXX_INPUT_BLOCK_SIZE - bytesInBuffer;
        if( cbData < freeInBuffer )
        {
            //
            // All the data will fit in the buffer.
            // We don't do anything here.
            // As cbData < INPUT_BLOCK_SIZE the bulk data processing is skipped,
            // and the data will be copied to the buffer at the end
            // of this code.
        } else {
            //
            // Enough data to fill the whole buffer & process it
            //
            memcpy(&state->buffer[bytesInBuffer], pbData, freeInBuffer);
            pbData += freeInBuffer;
            cbData -= freeInBuffer;
            SYMCRYPT_XxxAppendBlocks( &state->chain, state->buffer, SYMCRYPT_XXX_INPUT_BLOCK_SIZE );
 
            //
            // Set bytesInBuffer to zero to ensure that the trailing data in the
            // buffer will be copied to the right location of the buffer below.
            //
            bytesInBuffer = 0;
        }
    }

if() [2/3]

if	(	cbData	,
		0
	)

Definition at line 68 of file hash_buffer_pattern.c.

    {
        memcpy( &state->buffer[bytesInBuffer], pbData, cbData );
    }

if() [3/3]

if

(

cbData >=

SYMCRYPT_XXX_INPUT_BLOCK_SIZE

)

Definition at line 57 of file hash_buffer_pattern.c.

    {
        SIZE_T cbDataRoundedDown = cbData & ~(SIZE_T)(SYMCRYPT_XXX_INPUT_BLOCK_SIZE - 1);
        SYMCRYPT_XxxAppendBlocks( &state->chain, pbData, cbDataRoundedDown );
        pbData += cbDataRoundedDown;
        cbData -= cbDataRoundedDown;
    }