vhangup - virtually hangup the current tty
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
vhangup(): _BSD_SOURCE || (_XOPEN_SOURCE && _XOPEN_SOURCE < 500)
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.
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.
This page is part of release 3.44 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.