// Program:  forkalot.c
//
// Compile:  cc forkalot.c -o forkalot
// Run:      ./forkalot [100] [1]
//
// Args:     arg1 = # of copies of program to run simultaneously [100]
//           arg2 = Sleep time before exiting [1]

#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <unistd.h>
#include <fcntl.h>

#define CHILDREN    100
#define SLEEP_FOR   1

int main(int argc, char *argv[])
{
	int	count, this_long;
	int	pid;

	if (argc > 1)
		count = atoi(argv[1]);
	else
		count = CHILDREN;
	if (argc > 2)
		this_long = atoi(argv[2]);
        else
                this_long = SLEEP_FOR;

	/* fork count-1 children */
	while (count-- > 1) {
		pid = fork();
		if (pid == 0) {
			/* child */
			break;
		} else if (pid < 0) {
			perror("fork");
			exit(1);
		}
	}

        /* Sleepy... sleepy... */
	sleep(this_long);

        /* All done... return success! */
	return 0;
}