c-ares

Commit Graph

Author	SHA1	Message	Date
Daniel Stenberg	acf5ca090a	use unsigned short better intead of mixing with ints to prevent compiler warnings	16 years ago
Daniel Stenberg	1a1b4eb4f2	- Carlo Contavalli added support for the glibc "rotate" option, as documented in man resolv.conf: causes round robin selection of nameservers from among those listed. This has the effect of spreading the query load among all listed servers, rather than having all clients try the first listed server first every time. You can enable it with ARES_OPT_ROTATE	16 years ago
Yang Tse	f214b583f5	adjust inclusion of "nameser.h"	16 years ago
Yang Tse	507c529dc0	code cleanup	16 years ago
Yang Tse	f2582d6949	include header file only when available	16 years ago
Yang Tse	2cb5cbba34	move inclusion of ares_private.h last	16 years ago
Yang Tse	f33bd94c05	remove unnecessary typecasting of malloc()	16 years ago
Daniel Stenberg	3f1bde7664	- Fix by Tofu Linden: The symptom: * Users (usually, but not always) on 2-Wire routers and the Comcast service and a wired connection to their router would find that the second and subsequent DNS lookups from fresh processes using c-ares to resolve the same address would cause the process to never see a reply (it keeps polling for around 1m15s before giving up). The repro: * On such a machine (and yeah, it took us a lot of QA to find the systems that reproduce such a specific problem!), do 'ahost www.secondlife.com', then do it again. The first process's lookup will work, subsequent lookups will time-out and fail. The cause: * init_id_key() was calling randomize_key() before it initialized key->state, meaning that the randomness generated by randomize_key() is immediately overwritten with deterministic values. (/dev/urandom was also being read incorrectly in the c-ares version we were using, but this was fixed in a later version.) * This makes the stream of generated query-IDs from any new c-ares process be an identical and predictable sequence of IDs. * This makes the 2-Wire's default built-in DNS server detect these queries as probable-duplicates and (erroneously) not respond at all.	17 years ago
Daniel Stenberg	705c749aa1	- As was pointed out to me by Andreas Schuldei, the MAXHOSTNAMELEN define is not posix or anything and thus c-ares failed to build on hurd (and possibly elsewhere). The define was also somewhat artificially used in the windows port. Now, I instead rewrote the use of gethostbyname to enlarge the host name buffer in case of need and totally avoid the use of the MAXHOSTNAMELEN define. I thus also removed the defien from the namser.h file where it was once added for the windows build. I also fixed init_by_defaults() function to not leak memory in case if error.	17 years ago
Yang Tse	a43aec1b56	use same time source for timeout initialization and processing	17 years ago
Daniel Stenberg	46dbd9461a	- Introducing millisecond resolution support for the timeout option. See ares_init_options()'s ARES_OPT_TIMEOUTMS.	17 years ago
Yang Tse	fc4704b4d8	Improved parsing of resolver configuration files	17 years ago
Daniel Stenberg	cb4a169f75	Eino Tuominen improved the code when a file is used to seed the randomizer	17 years ago
Gunter Knauf	b68a4326d2	removed dependency on gettimeofday() since we use only 1 sec resolution here.	17 years ago
Yang Tse	1fe4d44ed9	Fix compiler warning: conversion from "int" to "unsigned short" may lose significant bits	17 years ago
Yang Tse	0e74c9c8cf	Renamed a variable to avoid shadowing a global declaration	17 years ago
Yang Tse	57abe9d22d	Fix compiler warning: conversion from "int" to "unsigned char" may lose significant bits	17 years ago
Yang Tse	a15a88a4e6	Avoid a segfault when generating a DNS "Transaction ID" in internal function init_id_key() under low memory conditions.	17 years ago
Steinar H. Gunderson	04e49e09dc	Previously, processing a large batch of timeouts was O(n^2) in the number of outstanding queries, and processing a DNS response packet was O(n) in the number of outstanding queries. To speed things up in Google, we added a few circular, doubly-linked lists of queries that are hash-bucketed based on the attributes we care about, so most important operations are now O(1). It might be that the number of buckets are higher than most people would need, but on a quick calculation it should only be 100kB or so even on a 64-bit system, so I've let it stay as-is.	17 years ago
Steinar H. Gunderson	56ffdcefe1	Support a few more socket options, and refactor the option setting a bit. (Patch from the Google tree.)	17 years ago
Steinar H. Gunderson	b669e17544	Three fixes in one commit (sorry): a) Take care of the tcpbuf if it ends while queued for transmission, note broken servers and close them in the main loop, and store TCP socket generation number in order not to send the same query twice over the same socket.	17 years ago
Daniel Stenberg	2b43edc964	Brad House provided a fix for ares_save_options(): Apparently I overlooked something with the ares_save_options() where it would try to do a malloc(0) when no options of that type needed to be saved. On most platforms, this was fine because malloc(0) doesn't actually return NULL, but on AIX it does, so ares_save_options would return ARES_ENOMEM.	17 years ago
Daniel Stenberg	ad734e7b2d	Brad House's fix to hish a win32 compiler warning	18 years ago
Daniel Stenberg	403b315a3b	Vlad Dinulescu fixed two outstanding valgrind reports	18 years ago
Gunter Knauf	316c126447	few minor changes to make ares compile for NetWare CLIB architecture.	18 years ago
Daniel Stenberg	fc5a460e0e	Brad Spencer found and fixed three flaws in the code, found with the new gcc 4.2.0 warning: -Waddress	18 years ago
Daniel Stenberg	49fdeb1de4	first take at detecting a random device and seeding the random key using data from it in randomize_key()	18 years ago
Daniel Stenberg	7a77f24d26	Shmulik Regev brought cryptographically secure transaction IDs	18 years ago
Daniel Stenberg	f1440b2405	Brad House added ares_save_options() and ares_destroy_options() that can be used to keep options for later re-usal when ares_init_options() is used.	18 years ago
Daniel Stenberg	557aad7b02	Ravi Pratap fixed a flaw in the init_by_resolv_conf() function for windows that could cause it to return a bad return code.	18 years ago
Gisle Vanem	a627160041	Removed inclusion of <sys/types.h> in .c-files since it's already included through "setup.h".	18 years ago
Yang Tse	679a675660	add debug messages for initialization failures	18 years ago
Yang Tse	69fa447354	use macros ERRNO, SET_ERRNO(), SOCKERRNO and SET_SOCKERRNO() for errno handling	18 years ago
Yang Tse	5dceb6d883	Oops, missing argument separator comma	18 years ago
Yang Tse	8c76cf38a7	in debug messages also show error description	18 years ago
Yang Tse	6751a208d6	Fix c-ares failing to get the search sequence of /etc/hosts and DNS from /etc/nsswitch.conf, /etc/host.conf or /etc/svc.conf when /etc/resolv.conf did not exist or was unable to read it.	18 years ago
Gisle Vanem	657c69ce9d	Added HAVE_PROCESS_H for DOS/Win32. Include <process.h> for getpid() in ares_init.c.	18 years ago
Yang Tse	6f872e206a	add debug messages for initialization failures	18 years ago
Yang Tse	fb38ee15e2	compiler warning fix	18 years ago
Daniel Stenberg	6a59182e81	Michael Wallner fixed this problem: When I set domains in the options struct, and there are domain/search entries in /etc/resolv.conf, the domains of the options struct will be overridden.	18 years ago
Yang Tse	877966659d	avoid a couple of potential zero size memory allocations	18 years ago
Yang Tse	dd3b42e1ac	Replace is() macros with our own IS() ones. Get rid of non ANSI/ISO isascii().	18 years ago
Daniel Stenberg	d3439e3332	- Guilherme Balena Versiani: I noted a strange BUG in Win32 port (ares_init.c/get_iphlpapi_dns_info() function): when I disable the network by hand or disconnect the network cable in Windows 2000 or Windows XP, my application gets 127.0.0.1 as the only name server. The problem comes from 'GetNetworkParams' function, that returns the empty string "" as the only name server in that case. Moreover, the Windows implementation of inet_addr() returns INADDR_LOOPBACK instead of INADDR_NONE.	18 years ago
Gisle Vanem	f417f06ca9	Added CVS id.	19 years ago
Gisle Vanem	a5c01eed75	If CURLDEBUG defined, call curl_memdebug() if $CARES_MEMDEBUG is set.	19 years ago
Daniel Stenberg	22e34b53e4	Nick Mathewson added the ARES_OPT_SOCK_STATE_CB option that when set makes c-ares call a callback on socket state changes. A better way than the ares_getsock() to get full control over the socket state.	19 years ago
Daniel Stenberg	d07656e76d	James Bursa fixes: find the hosts file on RISC OS, and made it build with newer gcc versions that no longer defines "riscos".	19 years ago
Daniel Stenberg	a8bb249d07	Alfredo Tupone provided a fix for the Windows code in get_iphlpapi_dns_info() when getting the DNS server etc.	20 years ago
Daniel Stenberg	be551e6a00	killed trailing whitespace, narrowed a few lines to 80 cols	20 years ago
Daniel Stenberg	86661ab646	sortlist_alloc() is never used on win32, so ifdef out it to prevent warning	20 years ago

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182 Commits (2e35328b9f3204751425c9937edcbbe2d26a64d7)