---
layout: doc
title: interactive / exec
---
# exec

### NAME

    exec()  - switches a player (interactive) connection from one object to
    another

### SYNOPSIS

    int exec( object to, object from );

### DESCRIPTION

    This efunction allows the interactive link to  a  given  object  to  be
    migrated to another object.  That is, after a successful exec(to, from)
    call, interactive(to) will return 1 and interactive(from)  will  return
    0.   The player that was controlling 'from' will begin controlling 'to'
    following the exec() call.  Note that this is a powerful  function  and
    its use must be restricted if you wish to attempt to have a secure mud.
    The proper way to restrict the use of exec() is to make a simul_efun of
    the  same  name and then use valid_override(4) to restrict the use of a
    simul_efun override (i.e. efun::exec()).  The exec() function returns 1
    if the switch is successful (and 0 otherwise).

### SEE ALSO

    interactive(3), remove_interactive(3), valid_override(4)

