c-ares

Commit Graph

Author	SHA1	Message	Date
Brad House	4f490b40df	Autotools: rework to simplify and fix recent issues (#674 ) Completely rework the autotools build system, issues have cropped up due to the complexity and could cause issues on even semi-modern Linux systems (Ubuntu 20.04 for example). Changes include: Remove all curl/xc/cares m4 helper files, they go overboard on detections of functions and datatypes. Go back to more plain autoconf macros as they've come a long way over the years. Use known systems and heuristics to determine datatypes for functions like send() and recv(), rather than the error prone detection which required thousands of permutations and might still get it wrong. Remove unneeded configure arguments like --enable-debug or --enable-optimize, its more common for people to simply pass their own CFLAGS on the command line. Only require CARES_STATICLIB definition on Windows static builds, its not necessary ever for other systems, even when hiding non-public symbols. Remove some function and definition detections that were never used in c-ares The test framework is now embedded into the toplevel configure system, there was no need to chain build the test system as it is never built externally to c-ares. As a side-effect of the changes, a configure run completes in about 25% of the original time. This has been tested on various Linux distributions (of varying age), FreeBSD, MacOS, Windows (via MSYS2 with Mingw), and Solaris10/11 (by @dfandrich), AIX 7.3 (by @dfandrich). It is not unlikely that this may have broken more esoteric or legacy systems, and we'll likely need to be ready to accept bug reports and patches, but it has removed over 10k lines of build system code. It is very likely any issues that crop up will add far fewer lines of code to fix such systems. Fixes Bug: #670 Fix By: Brad House (@bradh352)	11 months ago
Brad House	7aa6763641	CI: Add Alpine Linux and old Ubuntu (#667 ) Alpine linux doesn't use glibc but instead musl c, so provides a good alternative test bed. We are also adding the oldest non-EOL ubuntu version so we can test against older linux variants to prevent surprises. This patch also migrates more tests to use cmake and ninja in order to reduce overall build times as we seem to run out of credits on Cirrus-CI pretty quickly. Fix By: Brad House (@bradh352)	12 months ago
Brad House	567f581178	ci: disable static for symbol hiding tests	12 months ago
Brad House	b4025113ad	ci: add test case for building with hidden symbol visibility	12 months ago
Brad House	17ab747945	remove acountry from built tools as nerd.dk is gone (#554 ) The acountry utility required a third party DNSBL service from nerd.dk in order to operate. That service has been offline for about a year and there is no other comparable service offering. We are keeping the code in the repository as an example, but no longer building it. Fixes: #537 Fix By: Brad House (@bradh352)	1 year ago
Brad House	dd93f30082	Configuration option to limit number of UDP queries per ephemeral port (#549 ) Add a new ARES_OPT_UDP_MAX_QUERIES option with udp_max_queries parameter that can be passed to ares_init_options(). This value defaults to 0 (unlimited) to maintain existing compatibility, any positive number will cause new UDP ephemeral ports to be created once the threshold is reached, we'll call these 'connections' even though its technically wrong for UDP. Implementation Details: * Each server entry in a channel now has a linked-list of connections/ports for udp and tcp. The first connection in the list is the one most likely to be eligible to accept new queries. * Queries are now tracked by connection rather than by server. * Every time a query is detached from a connection, the connection that it was attached to will be checked to see if it needs to be cleaned up. * Insertion, lookup, and searching for connections has been implemented as O(1) complexity so the number of connections will not impact performance. * Remove is_broken from the server, it appears it would be set and immediately unset, so must have been invalidated via a prior patch. A future patch should probably track consecutive server errors and de-prioritize such servers. The code right now will always try servers in the order of configuration, so a bad server in the list will always be tried and may rely on timeout logic to try the next. * Various other cleanups to remove code duplication and for clarification. Fixes Bug: #444 Fix By: Brad House (@bradh352)	1 year ago
Daniel Stenberg	c1b00c41a7	provide SPDX identifiers and a REUSE CI job to verify All files have their licence and copyright information clearly identifiable. If not in the file header, they are set separately in .reuse/dep5. All used license texts are provided in LICENSES/	2 years ago
bradh352	26f10274f9	disable tests on ios	3 years ago
bradh352	75163d5289	looks like shell expansion doesn't work with cirrus-ci, lets do it another way	3 years ago
bradh352	876d5ac77e	attempt to autobuild for iOS	3 years ago
bradh352	80e9566165	fix a couple of coveralls vars	3 years ago
bradh352	3e46a8c7f2	more coveralls fixes	3 years ago
bradh352	a14f5c55eb	make verbose	3 years ago
bradh352	e84c46e985	make sure distcheck runs	3 years ago
bradh352	e7645eebf8	try cirrus-ci again	3 years ago
bradh352	8f99aab9a1	whitespace	3 years ago
bradh352	001ed0aaf0	start bringing up cirrus-ci	3 years ago
bradh352	abed6353d4	prep for adding new ci	3 years ago

18 Commits (66f66c47114cb7e9333b584c4733f78ee9e89d08)