posix_seteuid --
Set the effective UID of the current process
Description
bool posix_seteuid ( int uid )
Set the real user ID of the current process. This is a privileged
function and you need appropriate privileges (usually root) on
your system to be able to perform this function.
Возвращает TRUE в случае успешного завершения или FALSE в случае возникновения ошибки.