Run code only if child process has not yet forked in C

So I have a section of my code that I only want to run before the child process has been forked but am getting stuck

main()
{
    if (!childpid)
    {
            signal (SIGINT, siginthandler);
            signal (SIGQUIT, sigquithandler);
            signal (SIGUSR1, sigusr1handler);

            while (!done)
            {
                    printf("\nWait for another signal\n");
                    pause();
            }
    }
}


void sigquithandler ()
{
    childpid = fork();

    if (childpid == 0)
    {
            printf("\tI am the child and I am sending a signal\n");
            kill(getppid(), SIGUSR1);
            exit(0);
    }
}

So basically the sigquit will end everything and I dont want to print "wait for another signal" after pressing ctrl-\ so I am trying to only execute the code in main before the child process has been forked then after it is forked it will end

Any help is appreciated!!