FOPEN            1775 win32/win32.c  	fileflags |= FOPEN;		/* mark as open */
FOPEN            4214 win32/win32.c  	_osfile(fd) = flags | FOPEN;
FOPEN            4306 win32/win32.c  	_set_osflags(fdRead, FOPEN | FPIPE | FNOINHERIT);
FOPEN            4324 win32/win32.c  	_set_osflags(fdWrite, FOPEN | FPIPE | FNOINHERIT);