CentOS 7.0 - man page for vhangup (centos section 2)
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VHANGUP(2) Linux Programmer's Manual VHANGUP(2)
vhangup - virtually hangup the current terminal
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" terminal 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 3.53 of the Linux man-pages project. A description of the
project, and information about reporting bugs, can be found at
Linux 2007-07-26 VHANGUP(2)
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