opensolaris man page for pause

pause(2)							   System Calls 							  pause(2)

NAME
       pause - suspend process until signal

SYNOPSIS
       #include <unistd.h>

       int pause(void);

DESCRIPTION
       The  pause()  function  suspends  the  calling  process	until it receives a signal. The signal must be one that is not currently set to be
       ignored by the calling process.

       If the signal causes termination of the calling process, pause() does not return.

       If the signal is caught by the calling process and control is returned from the signal-catching	function  (see	signal(3C)),  the  calling
       process resumes execution from the point of suspension.

RETURN VALUES
       Since  pause()  suspends thread	execution indefinitely unless interrupted by a signal, there is no successful completion return value.	If
       interrupted, it returns -1 and sets errno to indicate the error.

ERRORS
       The pause() function will fail if:

       EINTR	A signal is caught by the calling process and control is returned from the signal-catching function.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Async-Signal-Safe 	   |
       +-----------------------------+-----------------------------+

SEE ALSO
       alarm(2), kill(2), signal(3C), wait(3C), attributes(5), standards(5)

SunOS 5.11							    28 Dec 1996 							  pause(2)