#include "header.h"

int main(int argc, char **argv)
{
	int i=0, n=100;
	char name[n];		//Very large file name security hole.
				//BE CAREFUL.
				//A name very much like the "Quake" executable
				//May be provided.  This may result in "Quake"
				//Not prime numbers.
	FILE *fOut;
	time_t start,stop;	//I think these are just bigish ints.
	start = time(NULL);	//This collects the first time.
	if  (argc==3 && argv[1][0]!='>'  && argv[1][0]!='<')
	{
	/*Hohmahgawd.  The names of an input and and output file.  Accept it!*/
		n=atoi(argv[1]);	//The first is the number of primes.
		fOut=fopen(argv[2],"wi+"); //The second, the [overwriten] output
	}
	else
	{	
		//OK, we're accepting from standard in.
		//Perhaps they've decided to use redirectors.
		//Anyways, get the array size
		scanf("%d",&n);//Number of primes to find.
		scanf("%s",&name);//I needed to stick this in the &name buffer.
//		printf("%s",name);
		fOut=fopen(name,"wi+"); //Overwritten output file.
		
	}
	printf("Finding first %d primes now.\n",n);
	//attempt to malloc memory for the array of size n.
	int *array = malloc(n * sizeof (int));
	if (array == NULL)
	{
		printf("EVERYTHING IS ON FIRE.");
		//Failure!  Perhaps n was too big.
	}
	else
	{
		//Calling workhorse of the function
		loopthrough(n,array);
		//Read out of array that has been modified
		for(i=0;i<n;i++)
		{
			fprintf(fOut,"%d\n",array[i]);
		}
		//Release memory
		free(array);
	}
	fclose(fOut);	//No need for this file anymore; closing.
	stop = time(NULL);	//This returns the time, now that all is ended.
/*	printf("Start:  %ld seconds.\n",start);
	printf("Stop:   %ld seconds.\n",stop);*/
	printf("Total Time: %lf seconds.\n",difftime(stop,start));
	return 0;
}