Remove __P().

branches: 1.10.18; 1.10.26;
style, indent, and ANSI-fy.

branches: 1.9.42; 1.9.44; 1.9.50;
Adjust code so that it will work when _STANDALONE isn't defined.
Allows it to be used for mount_nfs when SMALL is set - eg install floppies/

branches: 1.8.78; 1.8.90;
enough 64-bit fixes to make network booting work on the Alpha. In general,
these are hacks (s/long/int/, etc.), but this code really needs a heavy
cleaning (including fixed-size typing) and I don't have time to give it one
now.

More cleanup: change some private types to eliminate casts,
replace some "goto xxx" with return(-1). (mostly cosmetic)

Another round of clean up, including fixes presented by Matthias Drochner
(PR#1404). Things to be noted:
- all IP addresses are now `struct in_addr's.
- the function rarp_getipaddress() no longer return `myip'; in stead
it returns -1 on failure (errno set), 0 on success. `myip' is set
as a size-effect.

Clear up some size_t/ssize_t confusion.

Modified to do less copying, and to allow determination of
the address from whence the reply has come.

Various:
* Fix some misused types.
* Encapsulate the protocols better.
* Rearrange the RPC stuff to work more like the kernel. (Needs more work.)
* Remove a bunch of extra hair when reading a file over NFS.
* Use RPCAUTH_UNIX when talking to the NFS server.

new RCS ID format.

Standalone networking for network boot loaders.