un-terminated stream

Please I need some help with this badly.

Code:

if (fork() == 0)
{
        if ((fd = open(fdump, O_CREAT | O_WRONLY | O_APPEND, 0660)) < 0)
        fprintf (stderr,"ERROR(opening file): %s.\n", strerror(errno));

                dup2(fd, STDOUT);

        if ((execl("/usr/bin/top","-b", "-n", "1",  NULL)) < 0) <----- this is my problem line here.
        fprintf (stderr,"ERROR(execl): %s.\n", strerror(errno));  


        /*close(pd[READ]);              //close read end of the pipe
        write(pd[WRITE], pmsgBUF, strlen(pmsgBUF)+1);
        printf("Sent to Parent: %s.\n", pmsgBUF);
        close(pd[WRITE]);*/                     //close write end
        close(fd);
        exit(0);

top seems to keep something open (mayhaps the stream) which hangs the server. The client gets a [red]"connection refused[/red] error which is due to the server's tty (terminal) being suspended.

Oh here are the attached files.