CVS log for src/lib/libc/resolv/res_query.c

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Not a bug, but avoid using a possibly negative index anyway (CID-603941)

convert explicit length check before unchecked snprintf() with just a
overflow checked snprintf().  for res_debug.c and res_query.c, convert
from sprintf() to snprintf().

tested scp and rcp fail properly with too-long paths.
tested getaddrinfo fails as expected for too-long domains.
tested dig and ping for similar (res_debug.c/res_query.c).
created a temporary fs with quotas to test edquota with a long EDITOR.
did not test ypserv directly, but it's the same pattern.

avoids GCC 12 snprintf() warnings, and reduces total code size.

belated removal of the advertising clause.

close on exec hostaliases

sync with head

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@

Apply patch, requested by spz in ticket 1413:
	dist/bind/							patch
	include/resolv.h						patch
	include/arpa/nameser.h:						patch
	lib/libc/include/isc/assertions.h:				patch
	lib/libc/include/isc/eventlib.h					patch
	lib/libc/isc/assertions.c:					patch
	lib/libc/nameser/ns_parse.c					patch
	lib/libc/resolv/herror.c:					patch
	lib/libc/resolv/res_init.c					patch
	lib/libc/resolv/res_mkquery.c:					patch
	lib/libc/resolv/res_query.c					patch
	lib/libc/resolv/res_send.c:					patch
	usr.sbin/bind/Makefile.inc					patch
	usr.sbin/bind/include/config.h:					patch
	usr.sbin/bind/include/dns/code.h:				patch
	usr.sbin/bind/include/dns/enumclass.h:				patch
	usr.sbin/bind/include/dns/enumtype.h:				patch
	usr.sbin/bind/include/dns/rdatastruct.h:			patch
	usr.sbin/bind/include/isc/platform.h:				patch
	usr.sbin/bind/include/lwres/netdb.h:				patch
	usr.sbin/bind/include/lwres/platform.h:				patch
	usr.sbin/bind/libisc/Makefile:					patch
	lib/libc/inet/inet_addr.c 					new file

Update bind to  9.4-ESV-R4, latest version of the 9.4 line.

Apply patch, requested by spz in ticket 1413:
	dist/bind/							patch
	include/resolv.h						patch
	include/arpa/nameser.h:						patch
	lib/libc/include/isc/assertions.h:				patch
	lib/libc/include/isc/eventlib.h					patch
	lib/libc/isc/assertions.c:					patch
	lib/libc/nameser/ns_parse.c					patch
	lib/libc/resolv/herror.c:					patch
	lib/libc/resolv/res_init.c					patch
	lib/libc/resolv/res_mkquery.c:					patch
	lib/libc/resolv/res_query.c					patch
	lib/libc/resolv/res_send.c:					patch
	usr.sbin/bind/Makefile.inc					patch
	usr.sbin/bind/include/config.h:					patch
	usr.sbin/bind/include/dns/code.h:				patch
	usr.sbin/bind/include/dns/enumclass.h:				patch
	usr.sbin/bind/include/dns/enumtype.h:				patch
	usr.sbin/bind/include/dns/rdatastruct.h:			patch
	usr.sbin/bind/include/isc/platform.h:				patch
	usr.sbin/bind/include/lwres/netdb.h:				patch
	usr.sbin/bind/include/lwres/platform.h:				patch
	usr.sbin/bind/libisc/Makefile:					patch
	lib/libc/inet/inet_addr.c 					new file

Update bind to  9.4-ESV-R4, latest version of the 9.4 line.

Apply patches (requested by spz in ticket #1517):

Update bind to 9.7.2-P3.

Apply patches (requested by spz in ticket #1517):

Update bind to 9.7.2-P3.

Apply patches (requested by spz in ticket #1517):

Update bind to 9.7.2-P3.

don't read hostaliases using unbuffered reads. there is no security benefit.

Sync with HEAD.

Third (and last) commit. See http://mail-index.netbsd.org/source-changes/2009/05/13/msg221222.html

merge libbind and bump.

libc portion of libbind from external/bsd/libbind

Sync w/ -current. 34 merge conflicts to follow.

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

file res_query.c was added on branch christos-time_t on 2008-06-21 23:37:54 +0000

- 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

Catch up with now-somewhat-dated netbsd-4. These changes took longer
than expected for me to actually get around to merging.

Add missing BIND 9.4.x include file and library changes (requested by
tron in ticket #662).

Update BIND to version 9.4.1 (requested by christos in ticket #602).
Thanks to tron for the patches, upgrade script and testing.

Resolve conflicts.

Import bind 9.4.0.

merge in resolver portion of bind-9.4.0-rc2

import resolver portion of bind-9.4.0-rc2

don't re-define DEBUG

Put back issetugid() check for hostaliases.
XXX: this is suboptimal, It would be better if we propelry checked
for access.

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

namespace protection for resolver routines.

netbsd rcsid.

add casts to silence lint.

Import libc portion of the resolver from bind9

Initial revision