umask(2)                   DG/UX 4.30                    umask(2)



     NAME
          umask - Set and get file creation mask.

     SYNOPSIS
          mode_t   umask  (creation_mask)
          int             creation_mask;

     PARAMETERS
          creation_mask  File mode creation mask.

     DESCRIPTION
          Sets the process's file mode creation mask to the low-order
          9 bits of <creation_mask> and returns the previous value of
          the mask.  Those bits other than the low-order 9 in
          <creation_mask> are reserved, and in the return value are
          undefined.  See creat(2) for details of how this mask is
          used.

     ACCESS CONTROL
          None.

     RETURN VALUE
          0..07777       Previous mask value.

     EXCEPTIONS
          None.

     SEE ALSO
          The related manual sections:  mkdir(1), sh(1)
          chmod(2), creat(2), mknod(2), open(2).

























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