c-ares

Commit Graph

Author	SHA1	Message	Date
Brad House	cd5a41743c	fix ares_threadsafety() prototype	1 year ago
Brad House	a9442bd828	Basic Thread Safety (#636 ) c-ares does not have any concept of thread-safety. It has always been 100% up to the implementor to ensure they never call c-ares from more than one thread at a time. This patch adds basic thread-safety support, which can be disabled at compile time if not desired. It uses a single recursive mutex per channel, which should be extremely quick when uncontested so overhead should be minimal. Fixes Bug: #610 Also sets the stage to implement #611 Fix By: Brad House (@bradh352)	1 year ago
petrvh	f1bf69c2d7	ares_getaddrinfo(): do not use search domains if ARES_FLAG_NOSEARCH is set (#638 ) c-ares init options defines a flag ARES_FLAG_NOSEARCH that is supposed to prevent search using configured domain suffixes, however when using ares_getaddrinfo() the flag was ignored and domain suffixes were used anyway. Configuring zero domains to search also does not work (if ndomains == 0 default domain search list is loaded regardless of the flag ARES_OPT_DOMAINS being set). This change adds a check for the ARES_FLAG_NOSEARCH in as_is_only() function that is used by ares_getaddrinfo() to decide if to try to query next possible name ( next_dns_lookup() ) Fix By: @petrvh	1 year ago
Brad House	f4d8c9abbb	Fix MacOS version test It appears that the Issue #454 wasn't really fixed for some reason. This commit should fix the detection. Fix By: Brad House (@bradh352)	1 year ago
Daniel Stenberg	52e72fe812	CI: codespell Closes #635	1 year ago
Christian Clauss	054f474a29	Fix typos discovered by codespell (#634 ) % `codespell --ignore-words-list="aas,aci,acter,atleast,contentss,firey,fo,sais,seh,statics"` * https://pypi.org/project/codespell Fix By: Christian Clauss (@cclauss)	1 year ago
Brad House	b674abd561	environment is meant as an override for sysconfig	1 year ago
Ignat	2985ce35d0	Support attempts and timeout options from resolv.conf (#632 ) c-ares parses only antique version of options for timeout and number of retries from resolv.conf (`retrans` and `retry` are missing in modern documentation https://man7.org/linux/man-pages/man5/resolv.conf.5.html). I add support of `attempts` and `timeout` options Fix By: Ignat (@Kontakter)	1 year ago
Brad House	d67d6a04c8	more precise timeout calculation (#633 ) The timeout calculation was occurring with millisecond precision, but on some systems, there is microsecond precision which could mean we'd tell a user a timeout time prior to the actual timeout. Fixes Bug: #631 Fix By: Brad House (@bradh352)	1 year ago
Christian Clauss	ef4f4e57ce	INSTALL.md: Fix typo (#630 ) Fix By: Christian Clauss (@cclauss)	1 year ago
Brad House	edfb94d4dc	SonarCloud: fix minor codesmells	1 year ago
Brad House	00f7cf6d25	fix test case regression due to missing parens	1 year ago
Brad House	5262da7e88	now that warnings are enabled on test cases, clear a bunch of warnings	1 year ago
Brad House	33ee6c0573	CMake: CXXFLAGS environment wasn't being read because C++ compiler was enabled after settings warnings.	1 year ago
Brad House	ecf7a7f166	fix additional windows test warnings	1 year ago
Brad House	5c1a5d8050	cleanup some Windows warnings in test	1 year ago
Brad House	6b408a9bc9	clang-format	1 year ago
Brad House	3db69bbfeb	Fix Windows UWP (Store) building and add to CI/CD (#627 ) When building for UWP (WindowsStore), additional headers are needed and some functions are not available. This also adds AppVeyor CI/CD support to catch these issues in the future. Fix By: Deal (@halx99) and Brad House (@bradh352)	1 year ago
Brad House	320cefe1c7	ares_set_servers_() should allow an empty server list For historic reasons, we have users depending on ares_set_servers_() to return ARES_SUCCESS when passing no servers and actually clear the server list. It appears they do this for test cases to simulate DNS unavailable or similar. Presumably they could achieve the same effect in other ways (point to localhost on a port that isn't in use). But it seems like this might be wide-spread enough to cause headaches so we just will document and test for this behavior, clearly it hasn't caused "issues" for anyone with the old behavior. See: https://github.com/nodejs/node/pull/50800 Fix By: Brad House (@bradh352)	1 year ago
Brad House	4982f76a2f	Query Cache support (#625 ) This PR implements a query cache at the lowest possible level, the actual dns request and response messages. Only successful and `NXDOMAIN` responses are cached. The lowest TTL in the response message determines the cache validity period for the response, and is capped at the configuration value for `qcache_max_ttl`. For `NXDOMAIN` responses, the SOA record is evaluated. For a query to match the cache, the opcode, flags, and each question's class, type, and name are all evaluated. This is to prevent matching a cached entry for a subtly different query (such as if the RD flag is set on one request and not another). For things like ares_getaddrinfo() or ares_search() that may spawn multiple queries, each individual message received is cached rather than the overarching response. This makes it possible for one query in the sequence to be purged from the cache while others still return cached results which means there is no chance of ever returning stale data. We have had a lot of user requests to return TTLs on all the various parsers like `ares_parse_caa_reply()`, and likely this is because they want to implement caching mechanisms of their own, thus this PR should solve those issues as well. Due to the internal data structures we have these days, this PR is less than 500 lines of new code. Fixes #608 Fix By: Brad House (@bradh352)	1 year ago
Brad House	36466bb240	1.22.1 release prep (#624 )	1 year ago
Brad House	ba7ee410a9	ares__htable_strvp should be case-insensitive	1 year ago
Brad House	2724f0e26c	optimize: large /etc/hosts files reading profiling found some hot paths that could be optimized to reduce insert times into the cache. Fix By: Brad House (@bradh352)	1 year ago
Brad House	a3631763ca	Fix /etc/hosts processing performance with all entries using same IP address Some users use blacklist files like https://github.com/StevenBlack/hosts which can contain 200k+ host entries all pointing to 0.0.0.0. Due to the merge logic in the new hosts processor, all those entries will be associated as aliases for the same ip address. The first issue is that it attempts to check the status of all the hosts for the merged entry, when it should only be checking the new hosts added to the merged entry, so this caused exponential time as the entries got longer. The next issue is if searching for one of those hosts, it would append all the matches as cnames/aliases, but there is zero use for 200k aliases being appended to a lookup, so we are artificially capping this to 100. Bug report reference: https://bugs.gentoo.org/917400 Fix By: Brad House (@bradh352)	1 year ago
Brad House	0ef0f6b600	new badges	1 year ago
Brad House	278a0b59b9	OpenWatcom: time_t is unsigned, change math using time_t to promote to a 64bit signed integer	1 year ago
Brad House	b7e5182899	fix more docs	1 year ago
Gregor Jasny	53ed62b163	Fix typos and man page whatis entry (#619 ) Those issues were detected by lintian. Fix By: Gregor Jasny (@gjasny)	1 year ago
Douglas R. Reno	6988705f3f	Fix building c-ares-1.22.0 and higher under Watcom. (#623 ) Update config-win32.h to define HAVE_STDINT_H when OpenWatcom is in use. Fix By: Douglas R. Reno (@renodr)	1 year ago
Brad House	706d6b6507	OpenWatcom: fix PR building	1 year ago
Brad House	0e299e6966	CI/CD: Add OpenWatcom	1 year ago
Brad House	75ed29da51	CI/CD: Add OpenWatcom	1 year ago
Brad House	632b2fd9e1	CI/CD: Add OpenWatcom	1 year ago
Brad House	4d9ff5483a	CI/CD: Add OpenWatcom	1 year ago
Brad House	c2f7829dbc	CI/CD: Add OpenWatcom	1 year ago
Brad House	607a64b6db	CI/CD: Add OpenWatcom	1 year ago
Brad House	fffebf978c	CI/CD: Add OpenWatcom	1 year ago
Brad House	ee11e7a07e	warnings: try to prevent warnings due to automatic integer promotion	1 year ago
Brad House	4245fdb1ef	only push to coverity weekly or on explicit coverity_scan branch commits	1 year ago
Brad House	756b493e76	try to cleanup bogus compiler warnings	1 year ago
Brad House	6e916050fb	try to cleanup bogus compiler warnings	1 year ago
Brad House	818904643e	additional test coverage	1 year ago
Brad House	37082523cb	Coverity: omit tests	1 year ago
Brad House	75b41d7194	Coverity: more	1 year ago
Brad House	e3855da41e	Coverity: silence false positives	1 year ago
Brad House	9706649cd9	fix workflow	1 year ago
Brad House	66b382cf17	try a different coverity workflow	1 year ago
Brad House	dc54856296	coverity workflow (#618 )	1 year ago
Brad House	bc8aa90fb9	typos	1 year ago
Brad House	99f5340e3c	getaddrinfo ESERVICE	1 year ago

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396 Commits (cd5a41743c08cff2c42ce8fce325b83c50b64d54) All Branches Search

396 Commits (cd5a41743c08cff2c42ce8fce325b83c50b64d54)

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