Provided by: manpages-dev_2.17-1_all
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
EPERM The calling process has insufficient privilege to call
vhangup(); the CAP_SYS_TTY_CONFIG capability is required.
This call is Linux-specific, and should not be used in programs
intended to be portable.