Manpage of VHANGUP

VHANGUP

Section: Linux Programmer's Manual (2)
Updated: 2016-03-15
Index
 

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 errnois set appropriately.  

ERRORS

EPERM
The calling process has insufficient privilege to call vhangup(); the CAP_SYS_TTY_CONFIGcapability is required.
 

CONFORMING TO

This call is Linux-specific, and should not be used in programs intended to be portable.  

SEE ALSO

init(1), capabilities(7)


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
ERRORS
CONFORMING TO
SEE ALSO

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