set42sig(2)                                           set42sig(2)



     SYNOPSIS
          set42sig()

     DESCRIPTION
          The signal interface is changed to one closely resembling
          BSD 4.2 systems.  This call is similar to the setcompat
          system call. For the process calling it, it enables reliable
          signal delivery, the job control tty signals, and restarting
          of system calls when an interrupt is received.

          All aspects of 4.2 signals are inherited accross fork system
          calls. 4.2 job control group membership is inherited across
          exec system calls

     ERROR RETURN
          EINVAL         The process has already arranged to catch
                         signals.  Normally set42sig is called prior
                         to any other signal activity.

     SEE ALSO
          setcompat(2), sigvec(2), signal(3), termio(7).


































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