Pararena2/Sources/ValidInstall.c

/*============================================================*/
/*============================================================*/
/*==														==*/
/*==					Valid Install File					==*/
/*==														==*/
/*============================================================*/
/*============================================================*/


/*========================================================  Includes  */

#include "Globals.h"
#include "UnivUtilities.h"
#include "ValidInstall.h"
#include "FileError.h"


/*========================================================  Local Variables  */

short			theSystemVol;
Boolean			legitMasterDisk, bailOut;


/*========================================================  Functions  */
/*========================================================  xxxx  */

short GetSystemVolume (void)

{
	SysEnvRec		thisWorld;
	OSErr			theErr;
	short			theRefNum;
	
	theRefNum = 0;
	theErr = SysEnvirons(1, &thisWorld);				/* get system info */
	if (theErr == noErr)
		theRefNum = thisWorld.sysVRefNum;
	return(theRefNum);
}


/*========================================================  VolumeCreated  */

long VolumeCreated (void)

{
	SysEnvRec		thisWorld;
	HParamBlockRec	theBlock;
	long			created;
	OSErr			theErr;
	
	created = 0;
	
	theErr = SysEnvirons(1, &thisWorld);				/* get system info */
	
	if ((theErr == noErr) || (theErr == envNotPresent))
	{	
		theBlock.volumeParam.ioVolIndex = 0;  			/* set up paramBlock */
		theBlock.volumeParam.ioNamePtr = (StringPtr)kNilPointer;
		theBlock.volumeParam.ioVRefNum = thisWorld.sysVRefNum;
		theBlock.volumeParam.ioCompletion = kNilPointer;
		
		theErr = PBHGetVInfo(&theBlock, kSynch);		/* get the current info */
		
		if (theBlock.volumeParam.ioResult == noErr)
			created = theBlock.volumeParam.ioVCrDate;
	}
	
	return (created);
}


/*========================================================  VolumeMatchesPrefs  */

Boolean VolumeMatchesPrefs (long prefsSay, long *thisEncrypt)

{
	DateTimeRec		dateRecord;
	unsigned long	theseSeconds;
	Boolean			legit;
	
	*thisEncrypt = VolumeCreated();
	*thisEncrypt ^= kEncryptMask;
	
	if (*thisEncrypt == prefsSay)
		legit = TRUE;
	else
	{
		GetDateTime(&theseSeconds);
		Secs2Date(theseSeconds, &dateRecord);
		if ((dateRecord.month == 11) && (dateRecord.day == 9) && 
				(dateRecord.year == 1965))
			legit = TRUE;
		else
			legit = FALSE;
	}
	
	return (legit);
}


/*========================================================  PowerBook100Exception  */

Boolean PowerBook100Exception (void)

{
	#define			kPowerBook100Type	22
	SysEnvRec		thisWorld;
	OSErr			theErr;
	Boolean			isPowerBook100;
	
	isPowerBook100 = FALSE;
	
	theErr = SysEnvirons(1, &thisWorld);				/* get system info */
	if (theErr == noErr)
	{
		if (thisWorld.machineType == kPowerBook100Type)
			isPowerBook100 = TRUE;
	}
	
	return (isPowerBook100);
}


/*========================================================  SpecificVolumeCreated  */

Boolean SpecificVolumeCreated (void)

{
	Str255			namePtr;
	HParamBlockRec	theBlock;
	OSErr			theErr;
	short			vRefNum;
	long			spaceHas, theDate;
	Boolean			dummyBool;
	
	theDate = 0;
	
	theErr = GetVInfo(1, namePtr, &vRefNum, &spaceHas);		/* try drive 1 */
	if (theErr == nsvErr)
		theErr = GetVInfo(2, namePtr, &vRefNum, &spaceHas);	/* no volume? try 2 */
	if (theErr == noErr)
	{
		theBlock.volumeParam.ioVolIndex = 0;				/* set up param block */
		theBlock.volumeParam.ioNamePtr = (StringPtr)kNilPointer;
		theBlock.volumeParam.ioVRefNum = vRefNum;
		theBlock.volumeParam.ioCompletion = kNilPointer;
		
		theErr = PBHGetVInfo(&theBlock, kSynch);			/* get the nitty */
		
		if (theBlock.volumeParam.ioResult == noErr)
			theDate = theBlock.volumeParam.ioVCrDate;		/* get volume created */
	}
	else if (theErr != nsvErr)
	{
		dummyBool = CheckFileError(theErr, "\pValidation");
		DeathError(kErrFailedValidation);
	}

	tempLong = theDate;
	
	return (theDate == kLegalVolumeCreation);
}


/*========================================================  MasterFilter  */

pascal Boolean MasterFilter (DialogPtr theDialog, EventRecord *theEvent, short *itemHit)

{