Chapter 11. Terminal I/O

	Example	Relevant Functions
11.1	Terminal settings: disable the interrupt char and change the EOF char	isatty, fpathconf tcgetattr, tcsetattr
11.2	Get teminal #bits/byte setting and set it to 8-bit char	tcgetattr, tcsetattr
11.3	POSIX.1 termid implementation: Identify the device associated with tty	Nothing interesting (dummy function returning "/dev/tty" for portability to non UNIX systems)
11.4	POSIX.1 isatty implementation: Is this file descriptor associated with a tty device?	isatty
11.5	Test program for 11.4 above	isatty
11.6	POSIX.1 ttyname implementation: What is the name of terminal device associated with this file descriptor ?	isatty, fstat, stat, opendir, readdir, closedir, strcpy, strncpy
11.7	Test program for 11.6 above	isatty, ttyname
11.8	POSIX.1 getpass implementation: Read a password from the controlling terminal with echo disabled and proper signal handling.	fopen, setbuf, sigemptyset, sigaddset, sigprocmask, tcgetattr, tcsetattr, fputs, getc, putc, fclose
11.9	Test program for 11.8 above	getpass
11.10	A set of useful terminal handling functions: tty_cbreak: Put controlling terminal in break mode tty_raw: Put controlling terminal in raw mode tty_reset: Reset terminal modes. tty_termios: Return saved terminal modes. tty_atexit: Reset terminal modes on exit, (when registered with atexit)	tcgetattr, tcsetattr
11.11	Test program for 11.10 above	signal, tty_cbreak, tty_raw, tty_reset, read (single-char, unbuffered),
11.12	Print window size whenever it changes	isatty, signal, pause, ioctl