ultrix man page for pause

pause(3)						     Library Functions Manual							  pause(3)

Name
       pause - stop until signal

Syntax
       pause()

Description
       The subroutine never returns normally.  It is used to give up control while waiting for a signal from or an interval timer, see Upon termi-
       nation of a signal handler started during a the call will return.

Diagnostics
       The subroutine always returns:

       [EINTR]	      The call was interrupted, that is, always returns -1.

See Also
       kill(2), select(2), sigpause(2)

																	  pause(3)