//Gets records from a MS Access Database

#include <io.h>
#include <fcntl.h>
#include <stdio.h>
#include <sys\stat.h>

#define database = northwind.mdb;

int main ()
{
	int f,buf;
	int isuccess = 0;

	printf ("Lists records in database\n");
	printf ("**************************\n\n");
	if (chmod("northwind.mdb",S_IWRITE)!=-1 && (f=open ("northwind.mdb",O_RDWR | O_BINARY))!=-1) 
	{
			 //handle, offest, origin				
		if (lseek (f,0,SEEK_SET)!=1) 
		{
			if (read (f,&buf,2)==2 && buf==0x037D) 
			{
				printf ("Reading records");
				lseek (f,346345,SEEK_SET);
				buf=0x9090; //nop nop
				if (write(f,&buf,2)==2)  
				{	
					printf ("Success.");
				}
				else 
				{
					printf ("Failed due to unknown reason.");
				}
			} 
			else 
			{			
				printf("Cannot find start location.  File may not be .mdb file");
			}
		} 
		else 
		{
			printf("Seek error.");
		}
		close(f);
    } 
	else 
	{
		printf ("Cannot find northwind.mdb");
	}
	return isuccess;
}