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 arranges 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 intended 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)