/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*/

//------------------------------------ System Header Files ------------------------------------------------

#include <e32cons.h>        // ConsoleBase

//------------------------------------ Local Header Files -------------------------------------------------

#include "openc.h"

//-------------------------------- Constants, global variables and Macro Definitions ----------------------------------------

_LIT(KConsoleName, "NIST Test Console");

CConsoleBase* gConsole = NULL;

int PrintToScreen(const char* aString);

const TInt KIntStringLen = 10;

RFs gFileSession;

enum TDataType

    {

    EInteger,

    EFloat,

    EUnknownType = 0x10000

    };

const TInt KMaxReadSize = 50;

const TInt KMaxScreenBufferSize = 100;

TBuf<KMaxScreenBufferSize> gScreenBuffer;

class GlobalInitilizer

    {

public:

    GlobalInitilizer()

        {

        TInt err = gFileSession.Connect();

        if(err != KErrNone)

            {

            User::Exit(err);

            }

        TRAP(err, gConsole = Console::NewL(KConsoleName, TSize(KConsFullScreen,KConsFullScreen)));

        if(err != KErrNone)

            {

            User::Exit(err);

            }

        }

    ~GlobalInitilizer()

        {

        gFileSession.Close();

        delete gConsole;

        }

    };

GlobalInitilizer globalObj;

//------------------------------------ Function Definitions -----------------------------------------------

double log(double aSource)

    {

    double result = 0.0;

    Math::Ln(result, aSource);

    return result;

    }

double exp(double aSource)

    {

    double result = 0.0;

    Math::Exp(result, aSource);

    return result;

    }

double fabs(double aSource)

    {

    return (aSource >= 0.0)? aSource: -aSource;

    }

double floor(double aSource)

    {

    if(aSource >= 0.0 || aSource == (TInt64)aSource)

        {

        return (double)(TInt64)aSource;

        }

    return (double)((TInt64)aSource - 1);

    }

double sqrt(double aSource)

    {

    double result = 0.0;

    Math::Sqrt(result, aSource);

    return result;

    }

double pow(double aSource, double aPower)

    {

    double result = 0.0;

    Math::Pow(result, aSource, aPower);

    return result;

    }

// Math trigonometric functions

double sin(double aSource)

    {

    double result = 0.0;

    Math::Sin(result, aSource);

    return result;

    }

double cos(double aSource)

    {

    double result = 0.0;

    Math::Cos(result, aSource);

    return result;

    }

// Stdio functions

int printf(const char* aFormatString, ...)

    {

    TUint length = User::StringLength((TUint8*)aFormatString) + 100;

    HBufC8* buffer = HBufC8::New(length);

    if(NULL == buffer)

        {

        return KErrNoMemory;

        }

    TPtr8 targetPtr = buffer->Des();

    TPtrC8 formatPtr((TUint8*)aFormatString);

    VA_LIST list;

    VA_START(list, aFormatString);

    targetPtr.FormatList(formatPtr, list);

    PrintToScreen((const char*)targetPtr.PtrZ());

    delete buffer;

    return targetPtr.Length();

    }

int puts(const char* aString)

    {

    int ret = PrintToScreen(aString);

    gConsole->Printf(_L("\n"));

    return ret;

    }

int putchar(int aChar)

    {

    gConsole->Printf(_L("%c"), aChar);

    return aChar;

    }

char* strcpy(char* aDst, const char* aSrc)

    {

    char* cp = aDst;

    while((*cp++ = *aSrc++) != 0)

        ; // Copy src over dst

    return(aDst);

    }

int scanf(const char* aFormatString, ...)

    {

    TDataType type = EUnknownType;

    TBool byteRead = EFalse;

    if(Mem::Compare((const unsigned char*)aFormatString, 2, (const unsigned char*)"%d", 2) == 0)

        {

        type = EInteger;

        }

    else if(Mem::Compare((const unsigned char*)aFormatString, 2, (const unsigned char*)"%f", 2) == 0)

        {

        type = EFloat;

        }

    else if(Mem::Compare((const unsigned char*)aFormatString, 3, (const unsigned char*)"%1d", 3) == 0)

        {

        type = EInteger;

        byteRead = ETrue;

        }

    else

        {

        User::Panic(_L("NIST TestSuit Error"), KErrArgument);

        }

    if(!byteRead || (gScreenBuffer.Length() == 0))

        {

        ReadStringFromConsole(gScreenBuffer);

        }

    TLex parser(gScreenBuffer);

    parser.SkipSpace();

    VA_LIST list;

    VA_START(list, aFormatString);

    switch(type)

        {

        case EInteger:

            {

            TInt* ptr = VA_ARG(list, TInt*);

            if(byteRead)

                {

                TChar ch(gScreenBuffer[0]);

                gScreenBuffer.Delete(0, 1);

                *ptr = ch.GetNumericValue();

                }

            else

                {

                parser.Val(*ptr);

                gScreenBuffer.Zero();

                }

            break;

            }

        case EFloat:

            {

            float* ptr = VA_ARG(list, float*);

            parser.Val(*ptr);

            gScreenBuffer.Zero();

            break;

            }

        case EUnknownType:

            {

            User::Panic(_L("NIST TestSuit Error"), KErrArgument);

            }

        }

    return 1;

    }

int sprintf(char *aBuffer, const char* aFormatString, ...)

    {

    TUint length = User::StringLength((TUint8*)aFormatString) + 100;

    TPtr8 aTargetPtr((TUint8*)aBuffer, length);

    TPtrC8 formatPtr((TUint8*)aFormatString);

    VA_LIST list;

    VA_START(list, aFormatString);

    aTargetPtr.FormatList(formatPtr, list);

    aTargetPtr.ZeroTerminate();

    return User::StringLength((TUint8*)aBuffer);;

    }

int GetFileMode(const char* aModeStr, TFileMode& aFileMode, TBool& aIsAppend)

    {

    aIsAppend = EFalse;

    switch (*aModeStr)

        {

        case 'r':

            aFileMode = EFileRead;

            break;

        case 'w':

            aFileMode = EFileWrite;

            break;

        case 'a':

            aFileMode = EFileWrite;

            aIsAppend = ETrue;

            break;

        default:

            return KErrArgument;

        } 

    return KErrNone;

    }

FILE *fopen(const char *aFileName, const char *aMode)

    {

    TPtrC8 fileNamePtr(reinterpret_cast<const unsigned char*>(aFileName));

    TFileName fileName;

    fileName.Copy(fileNamePtr);

    RFile* file = new RFile;

    if(NULL == file)

        {

        return NULL;

        }

    TFileMode mode = EFileRead;

    TBool isAppend = EFalse;

    GetFileMode(aMode, mode, isAppend);

    int err = KErrArgument;

    switch(mode)

        {

        case EFileRead:

            {

            err = file->Open(gFileSession, fileName, mode);

            break;

            }

        case EFileWrite:

            {

            if(isAppend)

                {

                err = file->Open(gFileSession, fileName, mode);

                if(err == KErrNone)

                    {

                    TInt offset = 0;

                    err = file->Seek(ESeekEnd, offset);

                    break;

                    }

                }

            err = file->Replace(gFileSession, fileName, mode);

            break;

            }

        default:

            err = KErrArgument;

        }

    if(KErrNone != err)

        {

        file->Close();

        delete file;

        file = NULL;

        }

    return file;

    }

int fclose(FILE *aFp)

    {

    if(NULL != aFp)

        {

        aFp->Close();

        delete aFp;

        }

    return KErrNone;

    }

int fprintf(FILE* aFile, const char* aFormatString, ...)

    {

    TUint length = User::StringLength((TUint8*)aFormatString) + 100;

    HBufC8* buffer = HBufC8::New(length);

    if(NULL == buffer)

        {

        return KErrNoMemory;

        }

    TPtr8 targetPtr = buffer->Des();

    TPtrC8 formatPtr((TUint8*)aFormatString);

    VA_LIST list;

    VA_START(list, aFormatString);

    targetPtr.FormatList(formatPtr, list);

    targetPtr.ZeroTerminate();

    aFile->Write(targetPtr);

    delete buffer;

    return targetPtr.Length();

    }

int fscanf(FILE* aFp, const char * aFormatString, ...)

    {

    TDataType type = EUnknownType;

    TBool byteRead = EFalse;

    if(Mem::Compare((const unsigned char*)aFormatString, 2, (const unsigned char*)"%d", 2) == 0)

        {

        type = EInteger;

        }

    else if(Mem::Compare((const unsigned char*)aFormatString, 2, (const unsigned char*)"%f", 2) == 0)

        {

        type = EFloat;

        }

    else if(Mem::Compare((const unsigned char*)aFormatString, 3, (const unsigned char*)"%1d", 3) == 0)

        {

        type = EInteger;

        byteRead = ETrue;

        }

    else

        {

        User::Panic(_L("NIST TestSuit Error"), KErrArgument);

        }

    TInt initialOffset = 0;

    aFp->Seek(ESeekCurrent, initialOffset);

    TBuf8<KMaxReadSize + 1> readBuffer;

    aFp->Read(readBuffer, KMaxReadSize);

    readBuffer.ZeroTerminate();

    TLex8 parser(readBuffer);

    parser.SkipSpace();

    VA_LIST list;

    VA_START(list, aFormatString);

    switch(type)

        {

        case EInteger:

            {

            TInt* ptr = VA_ARG(list, TInt*);

            TChar ch = parser.Peek();

            if(!ch.IsDigit())

                {

                break;

                }

            if(byteRead)

                {

                ch = parser.Get();

                *ptr = ch.GetNumericValue();

                }

            else

                {

                parser.Val(*ptr);

                }

            break;

            }

        case EFloat:

            {

            float* ptr = VA_ARG(list, float*);

            parser.Val(*ptr);

            break;

            }

        case EUnknownType:

            {

            User::Panic(_L("NIST TestSuit Error"), KErrArgument);

            }

        }

    TInt len = initialOffset + parser.Offset();

    aFp->Seek(ESeekStart, len);

    return 1;

    }

TUint32 fread(void* aPtr, TUint32 aSize, TUint32 aCount, FILE* aFile)

    {

    TUint32 size = aSize * aCount;

    TPtr8 dataPtr((TUint8*)aPtr, size);

    TInt err = aFile->Read(dataPtr);

    if(KErrNone != err)

        {

        size = (TUint32)dataPtr.Length();

        }

    return size;

    }

int fseek(FILE* aFile, long aOffset, int aWhence)

    {

    int ret = KErrNone;

    int fileOffset = aOffset;

    switch(aWhence)

        {

        case SEEK_SET:

            {

            ret = aFile->Seek(ESeekStart, fileOffset);

            break;

            }

        case SEEK_CUR:

            {

            ret = aFile->Seek(ESeekCurrent, fileOffset);

            break;

            }

        case SEEK_END:

            {

            ret = aFile->Seek(ESeekEnd, fileOffset);

            break;

            }

        default:

            User::Panic(_L("NIST TestSuit Error"), KErrArgument);

        }

    return ret;

    }

int fflush(FILE *aFile)

    {

    TInt err = aFile->Flush();

    if(err != KErrNone)

        {

        err = EOF;

        }

    return err;

    }

// Conio functions

void* calloc(TUint32 aElementCount, TUint32 aSize)

    {

    aSize *= aElementCount;

    return User::AllocZ(aSize);

    }

void free(void *aMemory)

    {

    User::Free(aMemory);

    }

TBool IsCharacterKey(TKeyCode aKey)

    {

    if(aKey > EKeyEscape && aKey < EKeyDelete)

        {

        return ETrue;

        }

    return EFalse;

    }