lib LibC
  O_RDONLY = 0x0000
  O_WRONLY = 0x0001
  O_RDWR   = 0x0002
  O_APPEND = 0x0008

  O_CREAT = 0x0100
  O_TRUNC = 0x0200
  O_EXCL  = 0x0400

  O_TEXT    =  0x4000
  O_BINARY  =  0x8000
  O_WTEXT   = 0x10000
  O_U16TEXT = 0x20000
  O_U8TEXT  = 0x40000

  O_NOINHERIT   = 0x0080
  O_TEMPORARY   = 0x0040
  O_SHORT_LIVED = 0x1000
  O_OBTAIN_DIR  = 0x2000
  O_SEQUENTIAL  = 0x0020
  O_RANDOM      = 0x0010
end