VHANGUP

Section: Linux Programmer's Manual (2)
Updated: 2021-03-22
Index Return to Main Contents
 

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 to indicate the error.  

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

init(1), capabilities(7)  

COLOPHON

This page is part of release 5.11 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/.

 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
ERRORS
CONFORMING TO
SEE ALSO
COLOPHON
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Time: 06:22:43 GMT, May 09, 2021