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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | CONFORMING TO | SEE ALSO | COLOPHON |
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VHANGUP(2) Linux Programmer's Manual VHANGUP(2)
vhangup - virtually hangup the current terminal
#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)
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.
init(1), capabilities(7)
This page is part of release 5.10 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/.
Linux 2016-03-15 VHANGUP(2)
Pages that refer to this page: login(1), syscalls(2), capabilities(7)
Copyright and license for this manual page
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HTML rendering created 2020-12-21 by Michael Kerrisk, author of The Linux Programming Interface, maintainer of the Linux man-pages project. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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