VHANGUPSection: Linux Programmer's Manual (2)
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NAMEvhangup - virtually hangup the current tty
DESCRIPTIONvhangup() simulates a hangup on the current terminal. This call arranges for other users to have a ``clean'' tty at login time.
RETURN VALUEOn success, zero is returned. On error, -1 is returned, and errno is set appropriately.
- The calling process has insufficient privilege to call vhangup(); the CAP_SYS_TTY_CONFIG capability is required.
CONFORMING TOThis call is Linux specific, and should not be used in programs intended to be portable.
SEE ALSOcapabilities(7), init(8)