User login |
vhangup (2)
VHANGUP(2) Linux Programmer's Manual VHANGUP(2)
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)
Linux 2007-07-26 VHANGUP(2)
|