Tony Finch 45b2d8938b Simplify and speed up DNS name compression ... All we need for compression is a very small hash set of compression offsets, because most of the information we need (the previously added names) can be found in the message using the compression offsets. This change combines dns_compress_find() and dns_compress_add() into one function dns_compress_name() that both finds any existing suffix, and adds any new prefix to the table. The old split led to performance problems caused by duplicate names in the compression context. Compression contexts are now either small or large, which the caller chooses depending on the expected size of the message. There is no dynamic resizing. There is a behaviour change: compression now acts on all the labels in each name, instead of just the last few. A small benchmark suggests this is about 2x faster.		2022-10-17 08:45:44 +02:00
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bench	Suppress division by zero warning	2022-10-05 12:31:42 +01:00
dns	Simplify and speed up DNS name compression	2022-10-17 08:45:44 +02:00
include/tests	Update netmgr, tasks, and applications to use isc_loopmgr	2022-08-26 09:09:24 +02:00
irs	Move all the unit tests to /tests/<libname>/	2022-05-28 14:53:02 -07:00
isc	Restore ignoring ISC_R_CONNREFUSED in connect_read_cb	2022-10-12 19:21:42 +02:00
isccfg	Update netmgr, tasks, and applications to use isc_loopmgr	2022-08-26 09:09:24 +02:00
libtest	Simplify and speed up DNS name compression	2022-10-17 08:45:44 +02:00
ns	Update netmgr, tasks, and applications to use isc_loopmgr	2022-08-26 09:09:24 +02:00
.gitignore	Move all the unit tests to /tests/<libname>/	2022-05-28 14:53:02 -07:00
Makefile.am	Tests and benchmark for isc_ascii	2022-09-12 12:23:39 +01:00
unit-test-driver.sh.in	Move all the unit tests to /tests/<libname>/	2022-05-28 14:53:02 -07:00