posix Directory Reference

Files
	close.c
	The generic close operation for files that are vnodes.
	helpers.c
	Generic answers, for regular files, to whether a read is at the end of the file.
	ioctl.c
	The generic ioctl operation for files that are vnodes.
	lseek.c
	The generic lseek operation for files that are vnodes, as POSIX (IEEE Std 1003.1) describes it.
	open.c
	The generic open operation for files that are vnodes.
	read.c
	The generic read operation for files that are vnodes: regular files, and devices, pipes and FIFOs, which may have to wait for data.
	readdir.c
	The generic readdir operation for directories that are vnodes.
	trunc.c
	The generic truncate operation for files that are vnodes.
	write.c
	The generic write operation for files that are vnodes: regular files, and devices, pipes and FIFOs, which may have to wait for room.