Unix for Beginners
Unix Shell Programming
Unix Useful References
Unix Useful Resources
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vhangup() - Unix, Linux System Call
vhangup - virtually hangup the current tty
vhangup() simulates a hangup on the current terminal. This call arranges for other
users to have a clean tty at login time.
On success, zero is returned. On error, -1 is returned, and
errno is set appropriately.
The calling process has insufficient privilege to call
CAP_SYS_TTY_CONFIG capability is required.
This call is Linux-specific, and should not be used in programs
intended to be portable.