UMASK(2)                GENIX Programmer's Manual                UMASK(2)



      NAME
           umask - set file creation mode mask

      SYNOPSIS
           umask(complmode)

      DESCRIPTION
           Umask sets a mask used whenever a file is  created  by  creat(2)  or
           mknod(2):  the  actual mode (see chmod(2)) of the newly-created file
           is the logical and of the given mode and the complement of the argu-
           ment.   Only  the low-order 9 bits of the mask (the protection bits)
           participate.  In other words, the mask shows the bits to  be  turned
           off when files are created.

           The previous value of the mask is returned by the call.   The  value
           is  initially 022 (write access for owner only).  The mask is inher-
           ited by child processes.

      SEE ALSO
           creat(2), mknod(2), chmod(2)



































      Printed 11/16/83                                                        1