Set row buffering Function

# Include <termios. h>
Static struct termios oldt;
Void restore_terminal_settings (void ){
// Apply saved settings
Tcsetattr (0, TCSANOW, & oldt );
}

Void disable_terminal_settings (void ){
Struct termios newt;
// Save terminal settings
Tcgetattr (0, & oldt );
// Init new settings
Newt = oldt;
// Change settings
Newt. c_lflag & = ~ (ICANON | ECHO );
// Apply settings
Tcsetattr (0, TCSANOW, & newt );
// Make sure settings will be restored when program ends
// Atexit (restore_terminal_settings );
}

Void return_terminal_settings (void ){
Struct termios newt;
// Save terminal settings
Tcgetattr (0, & oldt );
// Init new settings
Newt = oldt;
// Change settings
Newt. c_lflag | = (ICANON | ECHO );
// Apply settings
Tcsetattr (0, TCSANOW, & newt );
}