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/* 
//               Intel(R) Integrated Performance Primitives
//                   Cryptographic Primitives (ippcp)
// 
//  Contents:
//     ippsGetSize_BN()
// 
*/

#include "owndefs.h"
#include "owncp.h"
#include "pcpbn.h"
#include "pcptool.h"


/*F*
//    Name: ippsGetSize_BN
//
// Purpose: Returns BigNum room.
//
// Returns:                Reason:
//    ippStsNullPtrErr        pBN == NULL
//                            pSize == NULL
//    ippStsContextMatchErr   !BN_VALID_ID(pBN)
//    ippStsNoErr             no errors
//
// Parameters:
//    pBN      BigNum ctx
//    pSize    max BigNum length (in Ipp32u chunks)
//
*F*/
IPPFUN(IppStatus, ippsGetSize_BN, (const IppsBigNumState* pBN, int* pSize))
{
   IPP_BAD_PTR2_RET(pBN, pSize);

   pBN = (IppsBigNumState*)( IPP_ALIGNED_PTR(pBN, BN_ALIGNMENT) );
   IPP_BADARG_RET(!BN_VALID_ID(pBN), ippStsContextMatchErr);

   *pSize = BN_ROOM(pBN)*sizeof(BNU_CHUNK_T)/sizeof(Ipp32u);

    return ippStsNoErr;
}