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vhangup.2

VHANGUP

Section: Linux Programmer's Manual (2)
Updated: 2007-07-26
Index Return to Main Contents
 

NAME

vhangup - virtually hangup the current tty  

SYNOPSIS

#include <unistd.h>

int vhangup(void);

Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

vhangup(): _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'' tty 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(8)  

COLOPHON

This page is part of release 3.21 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/.


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
ERRORS
CONFORMING TO
SEE ALSO
COLOPHON

 

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