2002-05-03  Christopher January <chris@atomice.net>

	* fhandler_proc.cc (fhandler_proc::open): Change use of mode to flags.
	If the file does not exist already, fail with EROFS if O_CREAT flag is
	set.
	Change EROFS error to EACCES error when writing to a file.
	Use cmalloc to allocate memory for filebuf.	
	* fhandler_process.cc (fhandler_process::open): Ditto.
	* fhandler_registry.cc (fhandler_registry::open): Ditto.
	Move check for open for writing before open_key.
	* path.cc (path_conv::check): Do not return ENOENT if a file is not found
	in /proc.
	* fhandler_virtual.cc (fhandler_virtual::write): Change EROFS error to
	EACCES error.
	* fhandler_virtual.cc (fhandler_virtual::open): Set the NOHANDLE flag.
	* fhandler_virtual.cc (fhandler_virtual::dup): Add call to
	fhandler_base::dup.
	Allocate child's filebuf using cmalloc.
	Copy filebuf from parent to child.
	* fhandler_virtual.cc (fhandler_virtual::close): Use cfree to free filebuf.
	* fhandler_proc.cc: Add '.' and '..' to directory listing.
	* fhandler_process.cc: Ditto.
	* fhandler_registry.cc: Ditto.
	* fhandler_registry.cc (fhandler_registry::readdir): Add support for '.'
	and '..' files in subdirectories of /proc/registry.
	* fhandler_registry.cc (fhandler_registry::telldir): Use lower 16 bits
	of __d_position as position in directory.
	* fhandler_registry.cc (fhandler_registry::seekdir): Ditto.