Simple time daemon to periodically save the time to a file every 5 seconds using UNIX libraries and C

gistfile1.c

//Include required libraries
#include <stdio.h>                                      
#include <time.h>                                       
#include <stdlib.h>                                     
#include <unistd.h>                                   
#include <sys/types.h>                                 
#include <syslog.h>                                            
                                                        
int main(int argc, char ** argv)                         
{
	//Create variable for storing time
        time_t rawtime;                   
        //Create file pointer
        FILE * fp;
        //Create a new process
        pid_t process_id;
        //Fork this program creating a new child from this program and store the returned value in process_id
	process_id = fork();

	//Check to see if the process ID was set and created properly by checking if process_id is not equal to 0
	if(process_id != 0)
		exit(0);
	//Run this loop infinitely
        while(1)                                        
        {                          
        	//Create a new file or overwrite the one that exists at "/tmp/localtime-5secs", and store the pointer to the file in fp
                fp = fopen("/tmp/localtime-5secs", "w");
                //Get the time and set rawtime to the value
                time(&rawtime);
                //Write the time to the file
                fprintf(fp, ctime(&rawtime));
                //Close the file pointer
                fclose(fp);
                //Flush the file output buffer for any rogue characters
                fflush(fp);
                //Pause for 5 seconds on each execution of the loop
                sleep(5);
        }
        return 0;                                       
}