Chapter 64: Pseudoterminals

A pseudoterminal is a virtual device that provides an IPC channel. On one end of the channel is a program that expects to be connected to a terminal device. On the other end is a program that drives the terminal-oriented program by using the channel to send it input and read its output.

This chapter describes the use of pseudoterminals, showing how they are employed in applications such as terminal emulators, the script(1) program, and programs such as ssh, which provide network login services.

64 Pseudoterminals
64.1 Overview
64.2 UNIX 98 Pseudoterminals
64.2.1 Opening an Unused Master: posix_openpt()
64.2.2 Changing Slave Ownership and Permissions: grantpt()
64.2.3 Unlocking the Slave: unlockpt()
64.2.4 Obtaining the Name of the Slave: ptsname()
64.3 Opening a Pseudoterminal Master: ptyMasterOpen()
64.4 Connecting Two Processes with a Pseudoterminal: ptyFork()
64.5 Pseudoterminal I/O
64.6 Implementing script(1)
64.7 Terminal Attributes and Window Size
64.8 BSD Pseudoterminals
64.9 Summary
64.10 Exercises

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