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

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(): _BSD_SOURCE || (_XOPEN_SOURCE	&& _XOPEN_SOURCE < 500)

DESCRIPTION
       vhangup()  simulates  a	hangup on the current terminal.	 This call ar-
       ranges 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 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  in-
       tended to be portable.

SEE ALSO
       capabilities(7),	init(8)

COLOPHON
       This  page  is  part of release 3.74 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
       http://www.kernel.org/doc/man-pages/.

Linux				  2007-07-26			    VHANGUP(2)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | CONFORMING TO | SEE ALSO | COLOPHON

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