ast_comparator/test/student_data/handout/shlab-handout/cases/reference_6_tsh.c
void sigint_handler(int sig)
{
    pid_t pid = fgpid(jobs);
    
    if (fgpid(jobs) != 0) {
    kill(-pid, SIGINT); 
    }
    
    return;
}
/* 
 * sigint_handler - The kernel sends a SIGINT to the shell whenver the
 *    user types ctrl-c at the keyboard.  Catch it and send it along
 *    to the foreground job.  
 */
The kernel sends a SIGINT to the shell whenver the
user types ctrl-c at the keyboard.  Catch it and send it along
to the foreground job.
The kernel sends a SIGINT to the shell whenver the user types ctrl - c at the keyboard . Catch it and send it along to the foreground job .
void sigint_handler(int sig)
{
    pid_t pid = fgpid(jobs);
    if (fgpid(jobs) != 0) {
    kill(-pid, SIGINT); 
    }
    return;
}
void sigint_handler ( int sig ) { pid_t pid = fgpid ( jobs ) ; if ( fgpid ( jobs ) != 0 ) { kill ( - pid , SIGINT ) ; } return ; }
sigint_handler - The kernel sends a SIGINT to the shell whenver the
    user types ctrl-c at the keyboard.
sigint_handler - The kernel sends a SIGINT to the shell whenver the user types ctrl - c at the keyboard .