VHANGUP
NAME
vhangup − virtually hangup the current terminal
SYNOPSIS
#include <unistd.h>
int vhangup(void);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
vhangup():
Since glibc 2.21:
_DEFAULT_SOURCE
In glibc 2.19 and 2.20:
_DEFAULT_SOURCE || (_XOPEN_SOURCE && _XOPEN_SOURCE < 500)
Up to and including glibc 2.19:
_BSD_SOURCE || (_XOPEN_SOURCE && _XOPEN_SOURCE < 500)
DESCRIPTION
vhangup() simulates a hangup on the current terminal. This call arranges for other users to have a “clean” terminal at login time.
RETURN VALUE
On success, zero is returned. On error, −1 is returned, and errno is set appropriately.
ERRORS
|
EPERM
|
|
The calling process has insufficient privilege to call vhangup(); the CAP_SYS_TTY_CONFIG capability is required.
|
CONFORMING TO
This call is Linux-specific, and should not be used in programs intended to be portable.
SEE ALSO
capabilities(7), init(1)
COLOPHON
This page is part of release 4.06 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man−pages/.
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