HelpPC 2.10	Quick Reference Utility	Copyright 1991 David Jurgens
MSC: int umask( int permission )        - prototype in io.h, sys\types.h, sys\stat.h        - changes permision in which a file may be accessed        - permission    = S_IWRITE      write is forbidden                        = S_IREAD       read is forbidden  (ignored by DOS)                        = S_IWRITE | S_IREAD  no reading or writing        - returns previous permission value
Esc or Alt-X to exit	umask	Home/PgUp/PgDn/End ←↑↓→