This chapter describes functions that are specific to terminal devices. You can use these functions to do things like turn off input echoing; set serial line characteristics such as line speed and flow control; and change which characters are used for end-of-file, command-line editing, sending signals, and similar control functions.
Most of the functions in this chapter operate on file descriptors. See Low-Level I/O, for more information about what a file descriptor is and how to open a file descriptor for a terminal device.
| Is It a Terminal | How to determine if a file is a terminal device, and what its name is. |
| I/O Queues | About flow control and typeahead. |
| Canonical or Not | Two basic styles of input processing. |
| Terminal Modes | How to examine and modify flags controlling details of terminal I/O: echoing, signals, editing. |
| Line Control | Sending break sequences, clearing terminal buffers ... |
| Noncanon Example | How to read single characters without echo. |