2000-02-02 Roland McGrath <roland@baalperazim.frob.com>

2000-02-02  Roland McGrath  <roland@baalperazim.frob.com>

	* sysdeps/mach/hurd/readlink.c (__readlink): Don't clobber original
	LEN value with io_read result; save it and compare them just in case
	the server bogusly returns more than we asked for.
	* sysdeps/mach/hurd/recv.c (recv): Likewise for socket_recv.
	* sysdeps/mach/hurd/recvfrom.c (recvfrom): Likewise.
	* hurd/fd-read.c (_hurd_fd_read): Likewise for io_read.
	Initialize NREAD before the RPC.  I think this must only have failed
	to bomb before because all the servers always return ool data(?).