Category : Files from Magazines
Archive   : CUJ9206.ZIP
Filename : 1006028A

// TESTPROG.C
//
//
// This program demonstrates the use of hardware locks (using
// FAKELOCK to simulate the hardware lock). TESTPROG has four
// functions, two of which (func2 and func3) are designed to be
// used frequently when running TESTPROG. TESTPROG calls FAKELOCK
// when the TESTPROG starts and every time func2 and func3 are called.
//
// The program TESTLOCK was used to determine what values FAKELOCK
// would return for the given parameters.
//
// The function CALL_LOCK calls FAKELOCK.
// CALL_LOCK gives TESTPROG a uniform response to failing
// the hardware lock test. Instead of just exiting the program,
// CALL_LOCK gives the user the chance to restore the lock
// and continue. This was done so that any data in memory
// might be saved before the program returned to DOS.

#include
#include
#include "fakelock.h"

// function prototypes
void CALL_LOCK( char *incode );
void func1( char* msg );
void func2( char* msg );
void func3( char* msg );
void func4( char* msg );

void main( void )
{
CALL_LOCK( "abcdefgh" );

func1( "\nfirst time in function 1" );
func2( "\nfirst time in function 2" );
func3( "\nfirst time in function 3" );
func2( "\nsecond time in function 2" );
func2( "\nthird time in function 2" );
func3( "\nsecond time in function 3" );
func2( "\nfourth time in function 2" );
func4( "\nfirst time in function 4" );

printf("\nProgram finished normally");
};

void func1( char* msg )
{
printf("%s", msg );
};

void func2( char* msg )
{
CALL_LOCK( "abcdefgh" );
printf("%s", msg );
};

void func3( char* msg )
{
CALL_LOCK( "abcdefgh" );
printf("%s", msg );
};

void func4( char* msg )
{
char test[96];

printf("\nEnter any lock parameter you want (only 'abcdefgh'"
" will find lock): ");
gets( test );
CALL_LOCK( test );
printf("%s", msg );
};

void CALL_LOCK( char *incode )
{
int key;
char lock[96];
int results = 0;

printf("\nWhich lock is to be called (1 or 2): ");
gets( lock );
key = atoi( lock );

while (results != 19334)
{
if ( (results = FAKELOCK( incode, key )) != 19334 )
{
printf("FAKE LOCK returned %d, that did not match the known key",
results );
printf("\nEnter another lock to try (0 to exit to DOS, or 1 or 2): ");
gets( lock );
key = atoi( lock );

if ( key == 0 )
{
printf("Program ended because it could not find hardware lock");
exit( 0 );
}
}
}
return;
}