PR/52578: Benjamin M. Schwartz Set the AD bit when DNSSEC is enabled
(RFC 6840 Section 5.7).

belated removal of the advertising clause.

PR/48475: YAMAGUCHI Takanori: EDNS option broken with unbound. struct
querybuf in net/gethnamaddr.c defines MAXPACKET to 64K. This in turn
gets passed down until it reached res_nopt(..., answer, ansl

PR/48475: YAMAGUCHI Takanori: EDNS option broken with unbound. struct
querybuf in net/gethnamaddr.c defines MAXPACKET to 64K. This in turn
gets passed down until it reached res_nopt(..., answer, anslen), where
the size of the buffer must fit in 16 bits. Unfortunately we end up
being one more than the max so we end up sending a 0 as the size and
unbound does not like that. Instead we clip now to 64K - 1, and everyone
is happy.
XXX: Pullup to 7.

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PR/45989: Martin Husemann: lint invocation does include -w only on i386

- turn lint -w for all the platforms after fixing the lint warnings.
- add _DIAGASSERTS() for casts that would assign values t

PR/45989: Martin Husemann: lint invocation does include -w only on i386

- turn lint -w for all the platforms after fixing the lint warnings.
- add _DIAGASSERTS() for casts that would assign values to types that
would not fit.
- change types, add casts
- change into ansii prototypes
- turn on _DIAGNOSTIC for libc (during current, to be eliminated for release
builds)

approved by core@

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fix lint issues and actual bugs lint found (missing break statements)

merge libbind and bump.

- protect DEBUG again because we should be able to set it from the Makefile
- add a missing cast to pacify lint.

updates from bind-9-5-0

Resolve conflicts.

merge in resolver portion of bind-9.4.0-rc2

don't re-define DEBUG

disable weak aliases for now; the resolver header file adds __ to all the
names.

namespace protection for resolver routines.

netbsd rcsid.

silence lint.

Import libc portion of the resolver from bind9