cpstringutils.cpp

开源的ssl算法openssl,版本0.9.8H

			ConcatPStrToCStr(theStr255,tempString,sizeof(tempString));
			
			CopyCStrToPStr(tempString,theStr255,sizeof(theStr255));
		}
	}


	ConcatPStrToPStr(theStr255,thePStr,maxPStrLength);
}



void CopyCStrAndConcatLongIntToCStr(const char *theSrcCStr,const long theNum,char *theDstCStr,const int maxDstStrLength)
{
	CopyCStrToCStr(theSrcCStr,theDstCStr,maxDstStrLength);
	
	ConcatLongIntToCStr(theNum,theDstCStr,maxDstStrLength);
}



void CopyLongIntToCStr(const long theNum,char *theCStr,const int maxCStrLength,const int numDigits)
{
Str255 		theStr255;


	NumToString(theNum,theStr255);


	if (numDigits > 0)
	{
	int 	charsToInsert;
	
		
		charsToInsert = numDigits - PStrLength(theStr255);
		
		if (charsToInsert > 0)
		{
		char	tempString[256];
			
			CopyCStrToCStr("",tempString,sizeof(tempString));
			
			for (;charsToInsert > 0;charsToInsert--)
			{
				ConcatCStrToCStr("0",tempString,sizeof(tempString));
			}
			
			ConcatPStrToCStr(theStr255,tempString,sizeof(tempString));
			
			CopyCStrToPStr(tempString,theStr255,sizeof(theStr255));
		}
	}


	CopyPStrToCStr(theStr255,theCStr,maxCStrLength);
}





void CopyUnsignedLongIntToCStr(const unsigned long theNum,char *theCStr,const int maxCStrLength)
{
char			tempString[256];
int				srcCharIndex,dstCharIndex;
unsigned long	tempNum,quotient,remainder;

	
	if (theNum == 0)
	{
		CopyCStrToCStr("0",theCStr,maxCStrLength);
	}
	
	else
	{
		srcCharIndex = 0;
		
		tempNum = theNum;
		
		for (;;)
		{
			if (srcCharIndex >= sizeof(tempString) - 1 || tempNum == 0)
			{
				for (dstCharIndex = 0;;)
				{
					if (dstCharIndex >= maxCStrLength - 1 || srcCharIndex <= 0)
					{
						theCStr[dstCharIndex] = 0;
						
						break;
					}
					
					theCStr[dstCharIndex++] = tempString[--srcCharIndex];
				}
				
				break;
			}
			

			quotient = tempNum / 10;
			
			remainder = tempNum - (quotient * 10);
			
			tempString[srcCharIndex] = '0' + remainder;
			
			srcCharIndex++;
			
			tempNum = quotient;
		}
	}
}




void CopyLongIntToPStr(const long theNum,unsigned char *thePStr,const int maxPStrLength,const int numDigits)
{
char	tempString[256];


	CopyLongIntToCStr(theNum,tempString,sizeof(tempString),numDigits);
	
	CopyCStrToPStr(tempString,thePStr,maxPStrLength);
}



OSErr CopyLongIntToNewHandle(const long inTheLongInt,Handle *theHandle)
{
OSErr		errCode = noErr;
char		tempString[32];
	
	
	CopyLongIntToCStr(inTheLongInt,tempString,sizeof(tempString));
	
	errCode = CopyCStrToNewHandle(tempString,theHandle);

	return(errCode);
}


OSErr CopyLongIntToExistingHandle(const long inTheLongInt,Handle theHandle)
{
OSErr		errCode = noErr;
char		tempString[32];
	
	
	CopyLongIntToCStr(inTheLongInt,tempString,sizeof(tempString));
	
	errCode = CopyCStrToExistingHandle(tempString,theHandle);

	return(errCode);
}




OSErr CopyCStrToExistingHandle(const char *theCString,Handle theHandle)
{
OSErr	errCode = noErr;
long	stringLength;

	
	if (theCString == nil)
	{
		SetErrorMessageAndBail(("CopyCStrToExistingHandle: Bad parameter, theCString == nil"));
	}

	if (theHandle == nil)
	{
		SetErrorMessageAndBail(("CopyCStrToExistingHandle: Bad parameter, theHandle == nil"));
	}

	if (*theHandle == nil)
	{
		SetErrorMessageAndBail(("CopyCStrToExistingHandle: Bad parameter, *theHandle == nil"));
	}



	stringLength = CStrLength(theCString) + 1;
	
	SetHandleSize(theHandle,stringLength);
	
	if (GetHandleSize(theHandle) < stringLength)
	{
		SetErrorMessageAndLongIntAndBail("CopyCStrToExistingHandle: Can't set Handle size, MemError() = ",MemError());
	}
	
	
	::BlockMove(theCString,*theHandle,stringLength);
	

EXITPOINT:
	
	return(errCode);
}





OSErr CopyCStrToNewHandle(const char *theCString,Handle *theHandle)
{
OSErr	errCode = noErr;
long	stringLength;

	
	if (theCString == nil)
	{
		SetErrorMessageAndBail(("CopyCStrToNewHandle: Bad parameter, theCString == nil"));
	}

	if (theHandle == nil)
	{
		SetErrorMessageAndBail(("CopyCStrToNewHandle: Bad parameter, theHandle == nil"));
	}



	stringLength = CStrLength(theCString) + 1;
	
	*theHandle = NewHandle(stringLength);
	
	if (*theHandle == nil)
	{
		SetErrorMessageAndLongIntAndBail("CopyCStrToNewHandle: Can't allocate Handle, MemError() = ",MemError());
	}
	
	
	::BlockMove(theCString,**theHandle,stringLength);
	

EXITPOINT:
	
	return(errCode);
}



OSErr CopyPStrToNewHandle(const unsigned char *thePString,Handle *theHandle)
{
OSErr	errCode = noErr;
long	stringLength;

	
	if (thePString == nil)
	{
		SetErrorMessageAndBail(("CopyPStrToNewHandle: Bad parameter, thePString == nil"));
	}

	if (theHandle == nil)
	{
		SetErrorMessageAndBail(("CopyPStrToNewHandle: Bad parameter, theHandle == nil"));
	}



	stringLength = PStrLength(thePString) + 1;
	
	*theHandle = NewHandle(stringLength);
	
	if (*theHandle == nil)
	{
		SetErrorMessageAndLongIntAndBail("CopyPStrToNewHandle: Can't allocate Handle, MemError() = ",MemError());
	}
	
	
	if (stringLength > 1)
	{
		BlockMove(thePString + 1,**theHandle,stringLength - 1);
	}
	
	(**theHandle)[stringLength - 1] = 0;
	

EXITPOINT:
	
	return(errCode);
}


OSErr AppendPStrToHandle(const unsigned char *thePString,Handle theHandle,long *currentLength)
{
OSErr		errCode = noErr;
char		tempString[256];

	
	CopyPStrToCStr(thePString,tempString,sizeof(tempString));
	
	errCode = AppendCStrToHandle(tempString,theHandle,currentLength);
	

EXITPOINT:
	
	return(errCode);
}



OSErr AppendCStrToHandle(const char *theCString,Handle theHandle,long *currentLength,long *maxLength)
{
OSErr		errCode = noErr;
long		handleMaxLength,handleCurrentLength,stringLength,byteCount;


	if (theCString == nil)
	{
		SetErrorMessageAndBail(("AppendCStrToHandle: Bad parameter, theCString == nil"));
	}

	if (theHandle == nil)
	{
		SetErrorMessageAndBail(("AppendCStrToHandle: Bad parameter, theHandle == nil"));
	}
	
	
	if (maxLength != nil)
	{
		handleMaxLength = *maxLength;
	}
	
	else
	{
		handleMaxLength = GetHandleSize(theHandle);
	}
	
	
	if (currentLength != nil && *currentLength >= 0)
	{
		handleCurrentLength = *currentLength;
	}
	
	else
	{
		handleCurrentLength = CStrLength(*theHandle);
	}
	
	
	stringLength = CStrLength(theCString);
	
	byteCount = handleCurrentLength + stringLength + 1;
	
	if (byteCount > handleMaxLength)
	{
		SetHandleSize(theHandle,handleCurrentLength + stringLength + 1);
		
		if (maxLength != nil)
		{
			*maxLength = GetHandleSize(theHandle);
			
			handleMaxLength = *maxLength;
		}
		
		else
		{
			handleMaxLength = GetHandleSize(theHandle);
		}

		if (byteCount > handleMaxLength)
		{
			SetErrorMessageAndLongIntAndBail("AppendCStrToHandle: Can't increase Handle allocation, MemError() = ",MemError());
		}
	}
	
	
	BlockMove(theCString,*theHandle + handleCurrentLength,stringLength + 1);
	
	
	if (currentLength != nil)
	{
		*currentLength += stringLength;
	}


	errCode = noErr;
	
	
EXITPOINT:

	return(errCode);
}



OSErr AppendCharsToHandle(const char *theChars,const int numChars,Handle theHandle,long *currentLength,long *maxLength)
{
OSErr		errCode = noErr;
long		handleMaxLength,handleCurrentLength,byteCount;


	if (theChars == nil)
	{
		SetErrorMessageAndBail(("AppendCharsToHandle: Bad parameter, theChars == nil"));
	}

	if (theHandle == nil)
	{
		SetErrorMessageAndBail(("AppendCharsToHandle: Bad parameter, theHandle == nil"));
	}
	
	
	if (maxLength != nil)
	{
		handleMaxLength = *maxLength;
	}
	
	else
	{
		handleMaxLength = GetHandleSize(theHandle);
	}
	
	
	if (currentLength != nil && *currentLength >= 0)
	{
		handleCurrentLength = *currentLength;
	}
	
	else
	{
		handleCurrentLength = CStrLength(*theHandle);
	}
	
	
	byteCount = handleCurrentLength + numChars + 1;
	
	if (byteCount > handleMaxLength)
	{
		SetHandleSize(theHandle,handleCurrentLength + numChars + 1);
		
		if (maxLength != nil)
		{
			*maxLength = GetHandleSize(theHandle);
			
			handleMaxLength = *maxLength;
		}
		
		else
		{
			handleMaxLength = GetHandleSize(theHandle);
		}

		if (byteCount > handleMaxLength)
		{
			SetErrorMessageAndLongIntAndBail("AppendCharsToHandle: Can't increase Handle allocation, MemError() = ",MemError());
		}
	}
	
	
	BlockMove(theChars,*theHandle + handleCurrentLength,numChars);
	
	(*theHandle)[handleCurrentLength + numChars] = '\0';
	
	if (currentLength != nil)
	{
		*currentLength += numChars;
	}


	errCode = noErr;
	
	
EXITPOINT:

	return(errCode);
}



OSErr AppendLongIntToHandle(const long inTheLongInt,Handle theHandle,long *currentLength)
{
OSErr		errCode = noErr;
char		tempString[32];
	
	
	CopyLongIntToCStr(inTheLongInt,tempString,sizeof(tempString));
	
	errCode = AppendCStrToHandle(tempString,theHandle,currentLength);

	return(errCode);
}




long CStrLength(const char *theCString)
{
long	cStrLength = 0;

	
	if (theCString != nil)
	{
		for (cStrLength = 0;theCString[cStrLength] != 0;cStrLength++)
		{
		
		}
	}
	
	
	return(cStrLength);
}



long PStrLength(const unsigned char *thePString)
{
long	pStrLength = 0;

	
	if (thePString != nil)
	{
		pStrLength = thePString[0];
	}
	
	
	return(pStrLength);
}





void ZeroMem(void *theMemPtr,const unsigned long numBytes)
{
unsigned char	*theBytePtr;
unsigned long	*theLongPtr;
unsigned long	numSingleBytes;
unsigned long	theNumBytes;

	
	theNumBytes = numBytes;
	
	if (theMemPtr != nil && theNumBytes > 0)
	{
		theBytePtr = (unsigned char	*) theMemPtr;
		
		numSingleBytes = (unsigned long) theBytePtr & 0x0003;
		
		while (numSingleBytes > 0)
		{
			*theBytePtr++ = 0;
			
			theNumBytes--;
			numSingleBytes--;
		}
		

		theLongPtr = (unsigned long	*) theBytePtr;
		
		while (theNumBytes >= 4)
		{
			*theLongPtr++ = 0;
			
			theNumBytes -= 4;
		}
		
		
		theBytePtr = (unsigned char	*) theLongPtr;
		
		while (theNumBytes > 0)
		{
			*theBytePtr++ = 0;
			
			theNumBytes--;
		}
	}
}




char *FindCharInCStr(const char theChar,const char *theCString)
{
char	*theStringSearchPtr;

	
	theStringSearchPtr = (char	*) theCString;
	
	if (theStringSearchPtr != nil)
	{
		while (*theStringSearchPtr != '\0' && *theStringSearchPtr != theChar)
		{
			theStringSearchPtr++;
		}
		
		if (*theStringSearchPtr == '\0')
		{
			theStringSearchPtr = nil;
		}
	}
	
	return(theStringSearchPtr);
}



long FindCharOffsetInCStr(const char theChar,const char *theCString,const Boolean inIgnoreCase)
{
long	theOffset = -1;


	if (theCString != nil)
	{
		theOffset = 0;
		

		if (inIgnoreCase)
		{
		char	searchChar = theChar;
		
			if (searchChar >= 'a' && searchChar <= 'z')
			{
				searchChar = searchChar - 'a' + 'A';
			}
			
			
			while (*theCString != 0)
			{
			char	currentChar = *theCString;
			
				if (currentChar >= 'a' && currentChar <= 'z')
				{
					currentChar = currentChar - 'a' + 'A';
				}
			
				if (currentChar == searchChar)
				{
					break;
				}
				
				theCString++;
				theOffset++;
			}
		}
		
		else
		{
			while (*theCString != 0 && *theCString != theChar)
			{
				theCString++;
				theOffset++;
			}
		}
		
		if (*theCString == 0)
		{
			theOffset = -1;
		}
	}
	
	return(theOffset);
}


long FindCStrOffsetInCStr(const char *theCSubstring,const char *theCString,const Boolean inIgnoreCase)
{
long	theOffset = -1;


	if (theCSubstring != nil && theCString != nil)
	{
		for (theOffset = 0;;theOffset++)
		{
			if (theCString[theOffset] == 0)
			{
				theOffset = -1;
				
				goto EXITPOINT;
			}
			
			
			for (const char	*tempSubstringPtr = theCSubstring,*tempCStringPtr = theCString + theOffset;;tempSubstringPtr++,tempCStringPtr++)
			{
				if (*tempSubstringPtr == 0)
				{
					goto EXITPOINT;
				}
				
				else if (*tempCStringPtr == 0)
				{
					break;
				}
			
			char	searchChar = *tempSubstringPtr;
			char	currentChar = *tempCStringPtr;
			
				if (inIgnoreCase && searchChar >= 'a' && searchChar <= 'z')
				{
					searchChar = searchChar - 'a' + 'A';