sigblock man page on Ultrix

sigblock man page on Ultrix

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sigblock(2)							   sigblock(2)

Name
       sigblock - block signals

Syntax
       sigblock(mask)
       int mask;

Description
       The system call causes the signals specified in mask to be added to the
       set of signals currently being blocked  from  delivery.	 Signal	 i  is
       blocked if the ith bit in mask is a 1.

       It  is  not  possible to block SIGKILL or SIGSTOP.  This restriction is
       silently imposed by the system.

       The previous set of masked signals is returned.

See Also
       kill(2), sigsetmask(2), sigvec(2)

								   sigblock(2)

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