1 Changelog for the c-ares project
5 - Alexander Lazic improved the getservbyport_r() configure check.
9 - Alexander Lazic pointed out that the buildconf should use the ACLOCAL_FLAGS
10 variable for easier controlling what it does and how it runs.
14 - James Bursa fixed c-ares to find the hosts file on RISC OS, and made it
15 build with newer gcc versions that no longer defines "riscos".
19 - Daniel Stenberg added ares_getsock() that extracts the set of sockets to
20 wait for action on. Similar to ares_fds() but not restricted to using
21 select() for the waiting.
25 - Yang Tse fixed some send() / recv() compiler warnings
29 - Added constants that will be used by ares_getaddrinfo
31 - Made ares_getnameinfo use the reentrant getservbyport (getservbyport_r) if it is
32 available to ensure it works properly in a threaded environment.
36 - configure fix for detecting a member in the sockaddr_in6 struct which failed
37 on ipv6-enabled HP-UX 11.00
39 Version 1.3.0 (August 29, 2004)
43 - Alfredo Tupone provided a fix for the Windows code in get_iphlpapi_dns_info()
44 when getting the DNS server etc.
48 - Added some checks for the addrinfo structure.
54 Make UDP sockets non-blocking. I've confirmed that at least on Linux 2.4 a
55 read event can come back from poll() on a valid SOCK_DGRAM socket but
56 recv(2) will still block. This patch doesn't ignore EAGAIN in
57 read_udp_packets(), though maybe it should. (This patch was edited by Daniel
58 Stenberg and a new configure test was added (imported from curl's configure)
59 to properly detect what non-blocking socket approach to use.)
61 I'm not quite sure how this was happening, but I've been seeing PTR queries
62 which seem to return empty responses. At least, they were empty when calling
63 ares_expand_name() on the record. Here's a patch which guarantees to
64 NUL-terminate the expanded name. The old behavior failed to NUL-terminate if
65 len was 0, and this was causing strlen() to run past the end of the buffer
66 after calling ares_expand_name() and getting ARES_SUCCESS as the return
67 value. If q is not greater than *s then it's equal and *s is always
68 allocated with at least one byte.
72 - Added ares_getnameinfo which mimics the getnameinfo API (another feature
73 that could use testing).
77 - Added an inet_ntop function from BIND for systems that do not have it.
81 - Made sortlist support IPv6 (this can probably use some testing).
83 - Made sortlist support CIDR matching for IPv4.
87 - Added preliminary IPv6 support to ares_gethostbyname. Currently, sortlist
88 does not work with IPv6. Also provided an implementation of bitncmp from
89 BIND for systems that do not supply this function. This will be used to add
90 IPv6 support to sortlist.
92 - Made ares_gethostbyaddr support IPv6 by specifying AF_INET6 as the family.
93 The function can lookup IPv6 addresses both from files (/etc/hosts) and
98 - Tupone Alfredo fixed includes of arpa/nameser_compat.h to build fine on Mac
103 - Dominick Meglio: Provided implementations of inet_net_pton and inet_pton
104 from BIND for systems that do not include these functions.
108 - Dominick Meglio added ares_parse_aaaa_reply.c and did various
109 adjustments. The first little steps towards IPv6 support!
113 - Fixed the VC project and makefile to use ares_cancel and ares_version
117 - The released ares_version.h from 1.2.1 says 1.2.0 due to a maketgz flaw.
120 Version 1.2.1 (October 20, 2004)
124 - Henrik Stoerner fix: got a report that Tru64 Unix (the unix from Digital
125 when they made Alpha's) uses /etc/svc.conf for the purpose fixed below for
126 other OSes. He made c-ares check for and understand it if present.
128 - Now c-ares will use local host name lookup _before_ DNS resolving by default
129 if nothing else is told.
133 - Henrik Stoerner: found out that c-ares does not look at the /etc/host.conf
134 file to determine the sequence in which to search /etc/hosts and DNS. So on
135 systems where this order is defined by /etc/host.conf instead of a "lookup"
136 entry in /etc/resolv.conf, c-ares will always default to looking in DNS
137 first, and /etc/hosts second.
141 1) resolv.conf (for the "lookup" line);
142 2) nsswitch.fon (for the "hosts:" line);
143 3) host.conf (for the "order" line).
147 - Dominick Meglio patched: C-ares on Windows assumed that the HOSTS file is
148 located in a static location. It assumed
149 C:\Windows\System32\Drivers\Etc. This is a poor assumption to make. In fact,
150 the location of the HOSTS file can be changed via a registry setting.
152 There is a key called DatabasePath which specifies the path to the HOSTS
154 http://www.microsoft.com/technet/itsolutions/network/deploy/depovg/tcpip2k.mspx
156 The patch will make c-ares correctly consult the registry for the location
161 - Gisle Vanem fixed the MSVC build files.
165 - Gisle Vanem made c-ares build and work with his Watt-32 TCP/IP stack.
169 - Harshal Pradhan made a minor syntax change in ares_init.c to make it build
174 - Made the lib get built static only if --enable-debug is used.
178 Basically in loops like handle_errors(), 'query->next' was assigned a local
179 variable and then query was referenced after the memory was freed by
180 next_server(). I've changed that so next_server() and end_query() returns
181 the next query. So callers should use this ret-value.
183 The next problem was that 'server->tcp_buffer_pos' had a random value at
184 entry to 1st recv() (luckily causing Winsock to return ENOBUFS).
186 I've also added a ares_writev() for Windows to streamline the code a bit
190 - Fixed a few variable return types for some system calls. Made configure
191 check for ssize_t to make it possible to use that when receiving the send()
192 error code. This is necessary to prevent compiler warnings on some systems.
194 - Made configure create config.h, and all source files now include setup.h that
195 might include the proper config.h (or a handicrafted alternative).
197 - Switched to 'ares_socket_t' type for sockets in ares, since Windows don't
200 - automake-ified and libool-ified c-ares. Now it builds libcares as a shared
201 lib on most platforms if wanted. (This bloated the size of the release
202 archive with another 200K!)
204 - Makefile.am now uses Makefile.inc for the c sources, h headers and man
205 pages, to make it easier for other makefiles to use the exact same set of
208 - Adjusted 'maketgz' to use the new automake magic when building distribution
211 - Anyone desires HTML and/or PDF versions of the man pages in the release
215 - Günter Knauf made c-ares build and run on Novell Netware.
218 - Gisle Vanem provided Makefile.dj to build with djgpp, added a few more djgpp
219 fixes and made ares not use 'errno' to provide further info on Windows.
222 - Gisle Vanem made it build with djgpp and run fine with the Watt-32 stack.
225 - Gisle Vanem's init patch for Windows:
227 The init_by_resolv_conf() function fetches the DNS-server(s)
228 from a series of registry branches.
230 This can be wrong in the case where DHCP has assigned nameservers, but the
231 user has overridden these servers with other prefered settings. Then it's
232 wrong to use the DHCPNAMESERVER setting in registry.
234 In the case of no global DHCP-assigned or fixed servers, but DNS server(s)
235 per adapter, one has to query the adapter branches. But how can c-ares know
236 which adapter is valid for use? AFAICS it can't. There could be one adapter
237 that is down (e.g. a VPN adapter).
239 So it's better to leave this to the IP Helper API (iphlapi) available in
240 Win-98/2000 and later. My patch falls-back to the old way if not available.
243 - James Bursa fixed an init issue for RISC OS.
246 - Nico Stappenbelt reported that when processing domain and search lines in
247 the resolv.conf file, the first entry encountered is processed and used as
248 the search list. According to the manual pages for both Linux, Solaris and
249 Tru64, the last entry of either a domain or a search field is used.
251 This is now adjusted in the code
253 Version 1.2.0 (April 13, 2004)
256 - Updated various man pages to look nicer when converted to HTML on the web
260 - Dirk Manske provided a new function that is now named ares_cancel(). It is
261 used to cancel/cleanup a resolve/request made using ares functions on the
262 given ares channel. It does not destroy/kill the ares channel itself.
264 - Dominick Meglio cleaned up the formatting in several man pages.
267 - Dominick Meglio's new ares_expand_string. A helper function when decoding
268 incoming DNS packages.
270 - Daniel Stenberg modified the Makefile.in to use a for loop for the man page
271 installation to improve overview and make it easier to add man pages.
273 Version 1.1.0 (March 11, 2004)
276 - Gisle Vanem improved build on Windows.
279 - Dan Fandrich found a flaw in the Feb 22 fix.
281 - Added better configure --enable-debug logic (taken from the curl configure
282 script). Added acinclude.m4 to the tarball.
285 - Removed ares_free_errmem(), the function, the file and the man page. It was
286 not used and it did nothing.
288 - Fixed a lot of code that wasn't "64bit clean" and thus caused a lot of
289 compiler warnings on picky compilers.
292 - Dominick Meglio made ares init support multiple name servers in the
293 NameServer key on Windows.
296 - Modified ares_private.h to include libcurl's memory debug header if
297 CURLDEBUG is set. This makes all the ares-functions supervised properly by
298 the curl test suite. This also forced me to add inclusion of the
299 ares_private.h header in a few more files that are using some kind of
300 memory-related resources.
302 - Made the makefile only build ahost and adig if 'make demos' is used.
305 - Dirk Manske made ares_version.h installed with 'make install'
308 - ares_free_errmem() is subject for removal, it is simply present for future
309 purposes, and since we removed the extra parameter in strerror() it won't
311 - configure --enable-debug now enables picky compiler options if gcc is used
312 - fixed several compiler warnings --enable-debug showed and Joerg Mueller-Tolk
315 Version 1.0.0 (February 3, 2004)
318 - now we produce the libcares.a library instead of the previous libares.a
319 since we are no longer compatible
323 - ares_strerror() has one argument less. This is the first official
324 modification of the existing provided ares API.
328 - Dirk Manske fixed how the socket is set non-blocking.
332 - Dominick Meglio made the private gettimeofday() become ares_gettimeofday()
333 instead in order to not pollute the name space and risk colliding with
334 other libraries' versions of this function.
336 * October 24, 2003. Daniel Stenberg
338 Added ares_version().
340 Version 1.0-pre1 (8 October 2003)
342 - James Bursa made it run on RISC OS
344 - Dominick Meglio made it run fine on NT4
346 - Duncan Wilcox made it work fine on Mac OS X
348 - Daniel Stenberg adjusted the windows port
350 - liren at vivisimo.com made the initial windows port
352 * Imported the sources from ares 1.1.1