vhangup man page on CentOS

vhangup man page on CentOS

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VHANGUP(2)		   Linux Programmer's Manual		    VHANGUP(2)

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
       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 2.6.6			  2004-05-27			    VHANGUP(2)

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