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vhangup() - Unix, Linux System Call


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NAME

vhangup - virtually hangup the current tty

SYNOPSIS

#include <unistd.h> 

int vhangup(void);

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

TagDescription
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.



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