CentOS 5.1

GNU/Linux	CentOS 5.1
	vhangup(2)

VHANGUP

NAME

vhangup − virtually hangup the current tty

#include <unistd.h>

int vhangup(void);

vhangup() simulates a hangup on the current terminal. This call arranges for other users to have a “clean” tty at login time.

On success, zero is returned. On error, −1 is returned, and errno is set appropriately.

EPERM

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

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