export of the protocol.  you shall not add non-protocol stuff to such
a file, period.

- move TIMEOUT* defines to arpa/tftp.h, as they are used several times
in tftpd and tftp, and the values are part of the RFC definition.
- tftpd and tftp did count the total retransmission time in retries
instead in seconds.  fixed.
- tftpd rexmt timeout was hardcoded by a define and therefore didn't
changed when the timeout option was sent.  fixed.
- limit total retransmission timeout in tftp to also 255 seconds.
- replace obvious atoi()'s by strtonum().
ok claudio@

Note:
While testing the new option, we noticed that our stable tftpd has
a problem if any option is set (e.g. tsize) and you try to put a file.
This has nothing todo with our new blksize option.  We fix this as
next.
ok claudio@

OK deraadt@

u_char -> unsigned char
u_short -> unsigned short
u_long -> unsigned long
u_int -> unsigned int
okay millert@

ok deraadt@

You must have an up-to-date gcc for this!
deraadt@ ok

rescinded 22 July 1999.  Proofed by myself and Theo.

"options edns0" in /etc/resolv.conf will enable the behavior.  no behavior
change if you don't have the line.  see resolv.conf(5) for more details.
EDNS0 is useful for avoiding TCP DNS queries/replies on larger DNS responses.
also, draft-ietf-dnsext-message-size-* plans to mandate EDNS0 support for DNS
clients that support IPv6 transport.

entire trees for testing anyway, I might as well do this intrusive touching
of include files now.  Added openBSD tags.

argument: 0 (which is not a valid SLC code -- valid SLC codes are currently
1 -> 30 inclusive, from RFC-1184).