Imported Upstream version 1.10.0

Change-Id: Ic7f3b0ad7dca62abe4cfa642a5eb5e190eb7a8c9

1 files changed, 3015 insertions, 862 deletions

diff --git a/CHANGES b/CHANGES
index 73fe8c7..b3ecd2d 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,1218 +1,3371 @@
-  Changelog for the c-ares project
+   Changelog for the c-ares project. Generated with git2changes.pl
 
-Version 1.7.5 (August 16, 2011)
+Version 1.10.0 (12 May 2013)
 
-Fixed:
+Daniel Stenberg (12 May 2013)
+- RELEASE-NOTES: two more bug fixes
 
- o detection of semicolon comments in resolv.conf
- o avoid using system's inet_net_pton affected by the WLB-2008080064 advisory
- o replacement ares_inet_net_pton affected by the WLB-2008080064 advisory
- o replacement ares_inet_ntop affected by potential out of bounds write
- o added install target to Makefile.msvc
- o only fall back to AF_INET searches when looking for AF_UNSPEC addresses
- o fixed ares_parse_*_reply memory leaks
- o Use correct sizeof in ares_getnameinfo()
- o IPv6-on-windows: find DNS servers correctly
- o man pages: docs for the c-ares utility programs
- o getservbyport replacement for Win CE
- o config_sortlist: (win32) missing else
- o advance_tcp_send_queue: avoid NULL ptr dereference
- o configure: fix a bashism
- o ares_expand_name: Fix encoded length for indirect root
+- [Keith Shaw brought this change]
 
-Version 1.7.4 (December 9, 2010)
+  ares_set_servers_csv: fixed IPv6 address parsing
+  
+  Fixed bug that caused the last part of an IPv6 address to be parsed as
+  the port number when the last part is all numeric.
 
-Changed:
+- nroff: fix two syntax mistakes
+  
+  ares_parse_a_reply and ares_parse_aaaa_reply both had two \fB instead of
+  \fP
+  
+  Reported-by: Alexander Klauer
+  Bug: http://c-ares.haxx.se/mail/c-ares-archive-2013-03/0010.shtml
 
- o local-bind: Support binding to local interface/IPs, see
-   ares_set_local_ip4, ares_set_local_ip6, ares_set_local_dev
+- [Alex Loukissas brought this change]
 
-Fixed:
+  build: fix build on msvc11
 
- o memory leak in ares_getnameinfo
- o add missing break that caused get_ares_servers to fail
- o ares_parse_a_reply: fix CNAME response parsing
- o init_by_options: don't copy an empty sortlist
- o Replaced uint32_t with unsigned int to fix broken builds
-   on a couple of platforms
- o Fix lookup with HOSTALIASES set
- o adig: fix NAPTR parsing
- o compiler warning cleanups
-
-Version 1.7.3 (June 11, 2010)
+- Makefile.am: increment -version-info for 1.10.0 release
 
-Fixed:
+- README: remove unnecessary comment
 
- o builds on Android
- o now includes all files necessary to build it (1.7.2 lacked a file)
-
-Version 1.7.2 (June 10, 2010)
-
-Changed:
-
- o Added ares_parse_mx_reply()
-
-Fixed:
-
- o ares_init: Last, not first instance of domain or search should win
- o improve alternative definition of bool
- o fix VS2010 compiler warnings
-
-
-Version 1.7.1 (Mar 23, 2010)
-
-* May 31, 2010 (Jakub Hrozek)
-- Use the last instance of domain/search, not the first one
-
-* March 23, 2010 (Daniel Stenberg)
-- We switched from CVS to git. See http://github.com/bagder/c-ares
-
-* March 5, 2010 (Daniel Stenberg)
-- Daniel Johnson provided fixes for building with the clang compiler.
-
-* March 5, 2010 (Yang Tse)
-- Added IPv6 name servers support. Implementation has been based on code,
-  comments and feedback provided November and December of 2008 by Daniel
-  Stenberg, Gregor Jasny, Phil Blundell and myself, December 2009 by Cedric
-  Bail, and February 2010 by Jakub Hrozek on the c-ares mailing list. On
-  March I reviewed all that, selected the best of each, and adjusted or
-  extended parts of it to make the best fit.
-
-  The external and visible result of all this is that two new functions are
-  added to the external API, ares_get_servers() and ares_set_servers(), which
-  becomes now the preferred way of getting and setting name servers for any
-  ares channel as these support both IPv4 and IPv6 name servers.
-
-  In order to not break ABI compatibility, ares_init_options() with option
-  mask ARES_OPT_SERVERS and ares_save_options() may still be used in code
-  which is intended to run on IPv4-only stacks. But remember that these
-  functions do not support IPv6 name servers. This implies that if the user
-  is capable of defining or providing an IPv6 name server, and the app is
-  using ares_init_options() or ares_save_options() at some point to handle
-  the name servers, the app will likely lose IPv6 name servers.
-
-* January 28, 2010 (Daniel Stenberg)
-- Tommie Gannert pointed out a silly bug in ares_process_fd() since it didn't
-  check for broken connections like ares_process() did. Based on that, I
-  merged the two functions into a single generic one with two front-ends.
-
-* December 29, 2009 (Yang Tse)
-- Laszlo Tamas Szabo adjusted Makefile.msvc compiler options so that where
-  run-time error checks enabling compiler option /GZ was used it is replaced
-  with equivalent /RTCsu for Visual Studio 2003 and newer versions. Option
-  /GX is replaced with equivalent /EHsc for all versions. Also fixed socket
-  data type for internal configure_socket function.
-
-* December 21, 2009 (Yang Tse)
-- Ingmar Runge noticed that Windows config-win32.h configuration file
-  did not include a definition for HAVE_CLOSESOCKET which resulted in
-  function close() being inappropriately used to close sockets.
-
-Version 1.7.0 (Nov 30, 2009)
-
-* November 26, 2009 (Yang Tse)
-- Larry Lansing fixed ares_parse_srv_reply to properly parse replies
-  which might contain non-SRV answers, skipping over potential non-SRV
-  ones such as CNAMEs.
+- ares_version.h: copyright end range year is now 2013
 
-* November 23, 2009 (Yang Tse)
-- Changed naming convention for c-ares libraries built with MSVC, details
-  and build instructions provided in README.msvc file.
+- RELEASE-NOTES: synced with fb0737f3a0a1c37
 
-* November 22, 2009 (Yang Tse)
-- Jakub Hrozek fixed more function prototypes in man pages to sync them
-  with the ones declared in ares.h
+- [Paul Saab brought this change]
+
+  ares_parse_aaaa_reply: Plug memory leak
+  
+  This change is similar to ares_parse_a_reply.c in commit
+  bffd67f16a8f42fe6dbf79ab2e39d92eea05c8a6
+
+- [Patrick Valsecchi brought this change]
 
-- Jakub Hrozek renamed addrttl and addr6ttl structs to ares_addrttl and
-  ares_addr6ttl in order to prevent name space pollution, along with
-  necessary changes to code base and man pages.This change does not break
-  ABI, there is no need to recompile existing applications. But existing
-  applications using these structs with the old name will need source code
-  adjustments when recompiled using c-ares 1.7.0.
-
-* November 21, 2009 (Yang Tse)
-- Added manifest stuff to Makefile.msvc.
+  ares_parse_txt_reply: return a ares_txt_reply node for each sub-string
+  
+  Previously, the function would wrongly return all substrings merged into
+  one.
 
-* November 20, 2009 (Yang Tse)
-- Fixed several function prototypes in man pages that were out of sync
-  with the ones declared in ares.h.  Added ares_free_data() along with
-  man page.  Updated ares_parse_srv_reply() and ares_parse_txt_reply()
-  with changes from Jakub Hrozek making these now return linked lists
-  instead of arrays, and merging the ares_free_data() adjustments.
+- [Alexander Klauer brought this change]
 
-* November 10, 2009 (Yang Tse)
-- Updated MSVC 6.0 project files to match settings from Makefile.msvc.
+  library init: documentation update
+  
+  This commit updates the documentation of ares_library_init() and
+  ares_library_cleanup() with regard to the newly introduced reference
+  counting of initializations and deinitializations.
 
-* November 9, 2009 (Yang Tse)
-- Makefile.msvc is now the reference method to build c-ares and sample
-  programs with any MSVC compiler or MS Visual Studio version.  If no
-  option or target are specified it builds dynamic and static c-ares
-  libraries in debug and release flavours and also builds all sample
-  programs using each of the different c-ares libraries.
-
-* November 2, 2009 (Yang Tse)
-- Renamed c-ares setup.h to ares_setup.h
+- [Alexander Klauer brought this change]
 
-* October 31, 2009 (Yang Tse)
-- Symbol hiding configure options are named now --enable-symbol-hiding
-  and --disable-symbol-hiding in an attempt to make them less ambiguous.
+  library init: be recursive
+  
+  Previously, a single call to ares_library_cleanup() would deinitialise
+  the c-ares library, regardless of how many times ares_library_init() was
+  called. This behaviour may cause problems in programs linking two or
+  more libraries which, in turn, use c-ares. The present commit fixes this
+  problem, deinitializing the library only after a number of calls to
+  ares_library_cleanup() matching the number of calls to
+  ares_library_init().
 
-* October 30, 2009 (Yang Tse)
-- Many fixes for ares_parse_txt_reply()
+- [Patrick Valsecchi brought this change]
 
-* October 29, 2009 (Daniel Stenberg)
-- Jakub Hrozek added ares_parse_txt_reply() for TXT parsing
+  protocol parsing: check input data stricter
+  
+  ... so that bad length fields aren't blindly accepted
+  
+  Bug: http://c-ares.haxx.se/mail/c-ares-archive-2013-04/0016.shtml
+
+Guenter Knauf (11 Apr 2013)
+- Create ares_build.h when buidling from Git.
+
+- Added -DCARES_STATICLIB to CFLAGS.
+  
+  Currently this static makefile does only support building the
+  static library libcares.a.
+
+Daniel Stenberg (8 Apr 2013)
+- [Alexander Klauer brought this change]
+
+  .gitignore: ignore patch files
+  
+  This commit adds a line to .gitignore to the effect that patch files
+  generated by 'git format-patch' are excluded from the repository.
+
+- [Alexander Klauer brought this change]
+
+  ares_destroy() documentation: no new requests
+  
+  Clarify that no new requests may be added to a resolver channel that is
+  currently being destroyed.
+
+- [Alexander Klauer brought this change]
+
+  Documentation: properly document ARES_ECANCELLED
+  
+  This commit clarifies the behaviour of ares_cancel() with respect to
+  callbacks and adds missing documentation of ARES_ECANCELLED to the man
+  pages of the affected functions.
+
+- [Alexander Klauer brought this change]
+
+  ares_cancel(): cancel requests safely
+  
+  An invocation of ares_cancel() walks through the request list, calling
+  the callbacks of all pending requests on a channel. Previously, if such
+  a callback added a new request to the channel, the request list might
+  not end up empty, causing an abort by assertion failure. The present
+  commit ensures that precisely all requests present upon entry of
+  ares_cancel() are cancelled, and that adding new requests through
+  callbacks is safe.
+
+Yang Tse (10 Mar 2013)
+- ares.h: stricter CARES_EXTERN linkage decorations logic
+  
+  No API change involved.
+
+- ares_build.h.dist: enhance non-configure GCC ABI detection logic
+  
+  GCC specific adjustments:
+  
+  - check __ILP32__ before 32 and 64bit processor architectures in
+    order to detect ILP32 programming model on 64 bit processors
+    which, of course, also support LP64 programming model, when using
+    gcc 4.7 or newer.
+  
+  - keep 32bit processor architecture checks in order to support gcc
+    versions older than 4.7 which don't define __ILP32__
+  
+  - check __LP64__ for gcc 3.3 and newer, while keeping 64bit processor
+    architecture checks for older versions which don't define __LP64__
+
+Daniel Stenberg (9 Mar 2013)
+- ares.h: there is no ares_free_soa function
+
+Yang Tse (9 Mar 2013)
+- Makefile.am: empty AM_LDFLAGS definition for automake 1.7 compatibility
+
+- ares_inet_ntop.3: s/socklen_t/ares_socklen_t
+
+- configure: use XC_LIBTOOL for portability across libtool versions
+
+- xc-lt-iface.m4: provide XC_LIBTOOL macro
+
+- Makefile.am: use AM_CPPFLAGS instead of INCLUDES
+
+- inet_ntop.c: s/socklen_t/ares_socklen_t
+
+- inet_ntop.c: s/socklen_t/ares_socklen_t for portability
+
+Daniel Stenberg (19 Feb 2013)
+- ares.h: s/socklen_t/ares_socklen_t for portability
+
+- ares_inet_ntop.3: 4th argument is socklen_t!
+
+- spell inet correctly!
+
+- ares_inet_pton/ntop: cleanup
+  
+  Make sure that the symbols are always exported and present in c-ares.
+  
+  Make the headers prefixed with 'ares'.
+  
+  Removed the inet_ntop.h version as it no longer features any content.
+
+- ares_inet_ntop/ares_inet_pton: added man pages
+
+Yang Tse (15 Feb 2013)
+- [Gisle Vanem brought this change]
+
+  curl_setup_once.h: definition of HAVE_CLOSE_S defines sclose() to close_s()
+
+- [Gisle Vanem brought this change]
+
+  config-dos.h: define HAVE_CLOSE_S for MSDOS/Watt-32
+
+- [Gisle Vanem brought this change]
+
+  config-dos.h: define strerror() to strerror_s_() for High-C
+
+Daniel Stenberg (13 Feb 2013)
+- ares_get_datatype: removed unused function
+  
+  it was also wrongly named as internal functions require two underscores
+
+- ares__bitncmp: use two underscores for private functions
+  
+  It used a single one previously making it look like a public one
+
+- ares__generate_new_id: moved to ares_query.c
+  
+  ... and ares__rc4 is turned into a local static function.
+
+- ares__swap_lists: make private and static
+  
+  ... since there's only one user, make it static within ares_process.c
+
+Yang Tse (13 Feb 2013)
+- Makefile.msvc: add four VS version strings
+
+Daniel Stenberg (13 Feb 2013)
+- ares_expand_name.3: clarify how to free the data
+
+Yang Tse (30 Jan 2013)
+- zz40-xc-ovr.m4: fix 'wc' detection - follow-up 2
+  
+  - Fix a pair of single quotes to double quotes.
+  
+  URL: http://curl.haxx.se/mail/lib-2013-01/0355.html
+  Reported by: Tor Arntsen
+
+- zz40-xc-ovr.m4: fix 'wc' detection - follow-up
+  
+  - Take into account that 'wc' may return leading spaces and/or tabs.
+  
+  - Set initial IFS to space, tab and newline.
+
+- zz40-xc-ovr.m4: fix 'wc' detection
+  
+  - Take into account that 'wc' may return leading spaces.
+  
+  - Set internationalization behavior variables.
+  
+  Tor Arntsen analyzed and reported the issue.
+  
+  URL: http://curl.haxx.se/mail/lib-2013-01/0351.html
+
+- zz40-xc-ovr.m4: check another three basic utilities
+
+- zz40-xc-ovr.m4: 1.0 interface stabilization
+  
+  - Stabilization results in 4 public interface m4 macros:
+    XC_CONFIGURE_PREAMBLE
+    XC_CONFIGURE_PREAMBLE_VER_MAJOR
+    XC_CONFIGURE_PREAMBLE_VER_MINOR
+    XC_CHECK_PATH_SEPARATOR
+  - Avoid one level of internal indirection
+  - Update comments
+  - Drop XC_OVR_ZZ40 macro
+
+- zz40-xc-ovr.m4: emit witness message in configure BODY
+  
+  This avoids witness message in output when running configure --help,
+  while sending the message to config.log for other configure runs.
+
+- zz40-xc-ovr.m4: truly do version conditional overriding
+  
+  - version conditional overriding
+  - catch unexpanded XC macros
+  - fix double words in comments
+
+- zz40-xc-ovr.m4: fix variable assignment of subshell output bashism
+  
+  Tor Arntsen analyzed and reported the issue.
+  
+  URL: http://curl.haxx.se/mail/lib-2013-01/0306.html
+
+- zz40-xc-ovr.m4: reinstate strict AC_REQUIRE macro dependencies
+
+- zz40-xc-ovr.m4: avoid double single-quote usage
+
+- zz40-xc-ovr.m4: parentheses balancing of 'case' statements
+  
+  m4 quadrigraph shell comment technique allows proper autoconf
+  parentheses balancing in shell 'case' statements. The presence
+  of unbalanced parentheses may otherwise trigger expansion bugs.
+
+- zz40-xc-ovr.m4: internals overhauling
+  
+  - Update comments
+  - Execute commands in subshells
+  - Faster path separator check
+  - Fix missing 'test' command
+  - Rename private macros
+  - Minimize AC_REQUIRE usage
+
+- zz40-xc-ovr.m4: redirect errors and warnings to stderr
+
+- configure: use XC_CONFIGURE_PREAMBLE early checks
+  
+  Some basic checks we make were placed early enough in generated
+  configure script when using autoconf 2.5X versions. Newer autoconf
+  versions expand these checks much further into the configure script,
+  rendering them useless. Using XC_CONFIGURE_PREAMBLE fixes placement
+  of early intended checks across all our autoconf supported versions.
+
+- zz40-xc-ovr.m4: provide XC_CONFIGURE_PREAMBLE macro
+
+- configure: autotools compatibility fixes - step I
+  
+  Fix proper macro expansion order across autotools versions for
+  C compiler and preprocessor program checks.
+
+- configure: fix automake 1.13 compatibility
+  
+  Tested with:
+  
+  buildconf: autoconf version 2.69
+  buildconf: autom4te version 2.69
+  buildconf: autoheader version 2.69
+  buildconf: automake version 1.13.1
+  buildconf: aclocal version 1.13.1
+  buildconf: libtool version 2.4
+  buildconf: GNU m4 version 1.4.16
+
+- ares_private.h: use again memdebug.h instead of curl_memdebug.h
+
+- configure.ac: replace AM_CONFIG_HEADER with AC_CONFIG_HEADERS
+  
+  automake 1.13 errors if AM_CONFIG_HEADER is used in configure script.
+
+- cares-override.m4: provide AC_CONFIG_MACRO_DIR definition conditionally
+  
+  Provide a 'traceable' AC_CONFIG_MACRO_DIR definition only when using
+  an autoconf version that does not provide it, instead of what we were
+  doing up to now of providing and overriding AC_CONFIG_MACRO_DIR for
+  all autoconf versions.
+
+- ares_private.h: use curl_memdebug.h instead of memdebug.h
+
+- vc6cares.dsp: add ares_create_query.c and ares_parse_soa_reply.c
+
+- cares-functions.m4: improve gethostname arg 2 data type check
+
+- setup_once.h: HP-UX specific 'bool', 'false' and 'true' definitions.
+  
+  Also reverts commit bceb40095a
+
+- configure: check if compiler halts on function prototype mismatch
+
+- cares-functions.m4: add gethostname arg 2 data type check and definition
+
+- cares-functions.m4: update thread-safeness detection of getaddrinfo()
+  
+  Take in account that POSIX standard Issue 7 drops h_errno support. Now, we also
+  consider getaddrinfo() to be thread-safe when (_POSIX_C_SOURCE >= 200809L) or
+  (_XOPEN_SOURCE >= 700) independently of whether h_errno exists or not.
+  
+  Take in account that h_errno might be a modifiable lvalue not defined as
+  a C preprocessor macro.
+
+- setup_once.h: HP-UX <sys/socket.h> issue workaround
+  
+  Issue: When building a 32bit target with large file support HP-UX
+  <sys/socket.h> header file may simultaneously provide two different
+  sets of declarations for sendfile and sendpath functions, one with
+  static and another with external linkage. Given that we do not use
+  mentioned functions we really don't care which linkage is the
+  appropriate one, but on the other hand, the double declaration emmits
+  warnings when using the HP-UX compiler and errors when using modern
+  gcc versions resulting in fatal compilation errors.
+  
+  Mentioned issue is now fixed as long as we don't use sendfile nor
+  sendpath functions.
+
+- setup_once.h: refactor inclusion of <unistd.h> and <sys/socket.h>
+  
+  Inclusion of these two header files now done in setup_once.h
+
+- Header inclusion clean-up
+  
+  Remove header inclusions already done in setup_once.h
+
+- setup_once.h: HP-UX specific TRUE and FALSE definitions
+  
+  Some HP-UX system headers require TRUE defined to 1 and FALSE to 0.
+
+- ares_timeout.c: fix compiler warning
+
+- ares_create_query.c: IRIX compilation fix
+
+- c-ares/nameser.h: add some T_* defines for ns_t_* values
+
+Daniel Stenberg (7 Nov 2012)
+- Revert "ares_parse_aaaa_reply: fix memory leak"
+  
+  This reverts commit 50f25d8a4b2d16f4c5e0ef620238688b7a315c7a.
+
+- ares_parse_aaaa_reply: fix memory leak
+  
+  an allocated buffer was not freed in the successful case.
+
+- [Gisle Vanem brought this change]
+
+  adig: perror() doesn't work for socket errors on windows
+  
+  ... so print the SOCKERRNO instead
+
+- get_DNS_AdaptersAddresses: fix IPv6 parsing
+  
+  Use of the wrong define made the function not parse IPv6 addresses
+  properly.
+  
+  Bug: http://c-ares.haxx.se/mail/c-ares-archive-2012-06/0028.shtml
+  Reported by: Saúl Ibarra Corretgé
+
+- version: bumped to 1.10.0
+  
+  Due to the newly added function: ares_create_query()
+
+- AUTHORS: synced with 83093ac450
+  
+  Added 21 authors since this document was last updated
+
+- ares_create_query.3: mention when this is added
+
+- [hpopescu@ixiacom.com brought this change]
+
+  Added new feature (rfc2671)
+
+- code police: fix indents, < 80 columns, reflowed comments
+
+Guenter Knauf (11 Jul 2012)
+- Cleaned up version awk script.
+
+Daniel Stenberg (30 Jun 2012)
+- [Gisle Vanem brought this change]
+
+  read_udp_packets: bail out loop on bad sockets
+  
+  I can see that recvfrom() in ares_process.c many times is called with
+  'udp_socket' == ARES_SOCKET_BAD. The code takes care not to call
+  recv/recvfrom with ARES_SOCKET_BAD in the outer-loop. So should the
+  inner-loop.
+
+Yang Tse (29 Jun 2012)
+- cares-compilers.m4: remove -Wstrict-aliasing=3 from clang
+  
+  Currently it is unknown if there is any version of clang that
+  actually supports -Wstrict-aliasing. What is known is that there
+  are several that don't support it.
+
+- cares-compilers.m4: -Wstrict-aliasing=3 for warning enabled gcc and clang builds
+
+Daniel Stenberg (18 Jun 2012)
+- version: work towards 1.9.2 (at least)
+
+Version 1.9.1 (18 Jun 2012)
+
+Daniel Stenberg (18 Jun 2012)
+- RELEASE-NOTES: 1.9.1 coming up
+
+Version 1.9.0 (16 Jun 2012)
+
+Daniel Stenberg (16 Jun 2012)
+- ares_version.h: next version is 1.9.0
+
+- [Marko Kreen brought this change]
+
+  ares_data.h: ARES_DATATYPE_SOA_REPLY is added in 1.9.0
+
+- RELEASE-NOTES: synced with 979bf951d
+  
+  Next release deemed to become 1.9.0 due to the new function
+
+- [Marko Kreen brought this change]
+
+  SOA parser added
+  
+  I need to do SOA queries, so here is a parser for them.
+  
+  - ares_soa_reply: new struct
+  - ares_malloc_data/ares_free_soa: ARES_DATATYPE_SOA_REPLY
+  - ares_parse_soa_reply: actual function
+
+Yang Tse (14 Jun 2012)
+- Kill compiler warning
+
+- Fix libcares.pc generation for static MingW* cross builds
+
+Daniel Stenberg (21 May 2012)
+- [Nick Alcock brought this change]
+
+  Fix UDP and TCP port byte order in saved options.
+  
+  The UDP and TCP port are stored in network byte order in the
+  ares_channeldata, but are passed in to ares_init_options() in host byte
+  order.  Thus we must return them from ares_save_options() in host byte
+  order too, or a duplicated channel will convert them again, leading to a
+  nonfunctional channel and a mysterious connection refused error from
+  ares_gethostbyname().  This breaks ares_dup(), thus the curl easy API
+  when c-ares is used by curl, and thus all the curl easy API's users.
+
+Yang Tse (28 Apr 2012)
+- version: start working on 1.8.1-DEV
+
+Version 1.8.0 (27 Apr 2012)
+
+Daniel Stenberg (27 Apr 2012)
+- RELEASE-NOTES: call next 1.8 instead
+  
+  Since we added a function, let's use a stricter bumping scheme
+
+Yang Tse (25 Apr 2012)
+- INSTALL: some adjustments
+
+Daniel Stenberg (25 Apr 2012)
+- GIT-INFO: mention buildconf
+
+Yang Tse (25 Apr 2012)
+- INSTALL: remove more sections that don't apply to c-ares
+
+- ares_timeout.c: fix compiler warning
+
+Daniel Stenberg (25 Apr 2012)
+- [Ben Noordhuis brought this change]
+
+  Makefile.m32: fix mingw32 build
+  
+  * add . to include path so ares_build.h is picked up
+  * make ar configurable to ease cross-compiling
+
+- RELEASE-NOTES: added what's happened since 1.7.5
+
+Guenter Knauf (22 Apr 2012)
+- Updated copyright year.
+
+Yang Tse (21 Apr 2012)
+- ares_init.c: Further refactoring of Windows system's DNS fetching code
+
+Guenter Knauf (20 Apr 2012)
+- Android: small changes to dns property part.
+  
+  Prefix prop vars; kill var; use DNS_PROP_NAME_PREFIX macro.
+
+- Handle CNAME-only in ares_parse_aaaa_reply().
+  
+  posted to the c-ares list by Peter Griess <pg@std.in>.
+
+- Add support for multiple DNS servers on Android.
+  
+  Before, c-ares always used the first DNS server on Android, causing
+  network problems if this DNS server was not available.
+  
+  Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
+
+- Added INSTALL so it gets into tarballs.
+
+- Added some more ifdefs to silent compiler warnings.
+
+Yang Tse (17 Apr 2012)
+- INSTALL: remove a non c-ares section
+
+- cares-compilers.m4: -Wno-pedantic-ms-format for Windows gcc 4.5 builds
+  
+  When building a Windows target with gcc 4.5 or newer and strict compiler
+  warnings enabled use -Wno-pedantic-ms-format in addition to other flags.
+
+- setup_once.h: tighten requirements for stdbool.h header inclusion
+  
+  Include stdbool.h only when it is available and configure is capable of
+  detecting a proper 'bool' data type when the header is included.
+
+- configure: NATIVE_WINDOWS no longer defined in config file
+
+- cares-compilers.m4: double underscore decoration for visibility attribute
+
+- build adjustments: CARES_SYMBOL_HIDING no longer defined in config files
+  
+  configure script now provides conditional definitions for Makefile.am
+  that result in CARES_SYMBOL_HIDING being defined by resulting makefiles
+  when appropriate.
+
+- configure: Windows cross-compilation fixes
+  
+  CARES_BUILDING_LIBRARY and CARES_STATICLIB no longer defined in ares_config.h,
+  configure will generate appropriate conditionals so that mentioned symbols
+  get defined and used in Makefile derived from Makefile.am at compilation time.
+
+Guenter Knauf (17 Apr 2012)
+- Added INSTALL file adapted from libcurl.
+  
+  Not yet ready, and needs further edits.
+
+Yang Tse (16 Apr 2012)
+- ares_init.c: get_iphlpapi_dns_info() refactoring
+
+Guenter Knauf (16 Apr 2012)
+- Kill some more compiler warnings.
+
+- Kill compiler warning about unused var.
+
+- Fixed my last commit: wrong preprocessor directive.
+
+- Check for __ANDROID__ in addition to ANDROID macro.
+
+- Check for __ANDROID__ in addition to ANDROID macro.
+  
+  Posted to c-ares list by Wayne.
+
+- Fix for Android to disable useless arpa/nameser.h.
+
+- Fix for Android to include sys/select.h for fd_set.
+
+Yang Tse (17 Mar 2012)
+- ares_data.c: some NAPTR related fixes
+
+Daniel Stenberg (16 Mar 2012)
+- port numbers: convert them to network order!
+  
+  When the config options ARES_OPT_UDP_PORT or ARES_OPT_TCP_PORT are used,
+  make sure to convert them to network byte order!
+  
+  Bug: http://c-ares.haxx.se/mail/c-ares-archive-2012-02/0004.shtml
+
+- white space cleanup
+  
+  - Keep code within 80 columns
+  
+  - Removed funny spaces after open paren and before closing paren
+
+- [Poul Thomas Lomholt brought this change]
+
+  get_iphlpapi_dns_info: fix buffer overrun
+  
+  I experienced a buffer overrun exception in c-ares on Windows and
+  tracked it down to be an error in the calculation of the 'left' variable
+  in get_iphlpapi_dns_info().
+  
+  I changed the variable type of 'left' to a _signed_ type because of the
+  subtraction arithmetic; not sure if a long is the best choice
+
+- Merge pull request #7 from saghul/naptr
+  
+  Added support for parsing NAPTR records
+
+saghul (23 Feb 2012)
+- Added support for parsing NAPTR records
+
+Yang Tse (19 Jan 2012)
+- ares_init.c: fix compiler warning on winsock builds
+
+- configure: libtool 1.5 tweaks
+
+Daniel Stenberg (19 Dec 2011)
+- ares_timeout.3: fix the NAME section
+  
+  It was clearly a copy n' paste error
+
+Yang Tse (27 Sep 2011)
+- [Albert Chin brought this change]
+
+  configure - m4: make CURL_CHECK_DEF ignore leading whitespace on symbol def
+  
+  When using Sun C compiler the preprocessor somehow inserts an extra space
+  in front of replaced symbol, breaking CURL_CHECK_DEF macro. To workaround
+  this, macro CURL_CHECK_DEF now ignores all leading whitespace in front of
+  symbol substitution result.
+
+- ares_init.c: fix segfault triggered in ares_init_options() upon previous
+               failure of init_by_defaults() and incomplete cleanup there.
+
+- ares_process.c: fix compiler warning
+
+- fix MSVC compiler warning 'conditional expression is constant'
+
+- setup_once.h cleanup and sync
+
+- [Denis Bilenko brought this change]
+
+  ares_getnameinfo: fix random results with c-ares 1.7.5
+  
+  In ares_getnameinfo memcpy did not copy enough bytes, causing
+  it to return arbitrary memory contents as a result.
+
+- warnings: fix another 'conversion may lose significant bits' compiler warning
+
+- ares_dns.h: adjust DNS__16BIT and DNS__32BIT macro definitions
+  
+  Fixing compiler warnings existing definitions triggered on these.
+
+- ares_destroy.c: fix segfault in ares_destroy_options()
+
+Daniel Stenberg (21 Aug 2011)
+- ares_parse_srv_reply: silence compiler warnings
+  
+  ... by adding ugly typecasts.
+
+- CHANGES: generate from script
+  
+  The CHANGES file is now generated automatically with 'git2changes.pl',
+  invoked by the maketgz script which is used to build release archives.
+  
+  The former human edited CHANGES file was renamed to CHANGES.0 in git.
+
+Yang Tse (21 Aug 2011)
+- Makefile.netware: SIZEOF_SHORT definition
+
+- warnings: fix some 'conversion may lose significant bits' compiler warnings
+
+- configure: fix symbol hiding usability check
+  
+  A more thorough test is done now in order to determine visibility attribute
+  usability, given that some compilers don't support visibility attribute on
+  all configurations.
+
+Daniel Stenberg (16 Aug 2011)
+- 1.7.6: start working...
+
+Version 1.7.5 (16 Aug 2011)
+
+Daniel Stenberg (16 Aug 2011)
+- CHANGES: synced for 1.7.5 release
+
+- RELEASE-NOTES: synced with bb4096effef7f000
+
+Jakub Hrozek (15 Aug 2011)
+- Only fall back to AF_INET searches when looking for AF_UNSPEC addresses
+
+Yang Tse (10 Aug 2011)
+- [Gisle Vanem brought this change]
+
+  ares_iphlpapi.h: Watcom C fix
+  
+    Added "!defined(_WS2DEF_)" since Watcom doesn't have
+    a per type guard for the typedefs 'CSADDR_INFO' (that MingW has) or
+    'SOCKET_ADDRESS' (that MSVC has). But we can use the header-guard for
+    <ws2def.h> instead.
+
+- [Gisle Vanem brought this change]
+
+  Makefile.Watcom:
+    * The 'NTDDI_VERSION' needs to be raised to 0x05010000
+      in order for SOCKADDR_STORAGE etc. to be typedefed.
+    * Replaced '-dUSE_WATT32' with '-dWATT32'.
+    * Added $(DEMOS) to the 'all' target and removed the 'demos'
+      target to be consistent with e.g. Makefile.msvc etc.
+    * 'ENABLE_IPV6' is no longer used. Hence removed the '%use_ipv6' construct.
+    * object-file order seems to be important (Watcom v.19). Hence
+      'ares_getopt.obj' must be put after the .obj that references getopt().
+
+- cares-compilers.m4: CARES_CONVERT_INCLUDE_TO_ISYSTEM adjustments
+  
+  Add CARES_CHECK_COMPILER as a requirement.
+  
+  Ensure macro does nothing unless GNU_C or CLANG compiler is used.
+  
+  This should allow usage of this macro in unforeseen placements.
+
+- config-win32.h: comments adjustments - followup
+
+- config-win32.h: comments adjustments
+
+Daniel Stenberg (5 Aug 2011)
+- [Tom Hughes brought this change]
+
+  ares_parse_a_reply: fix memleak
+
+Yang Tse (29 Jul 2011)
+- cares-functions.m4 serial # bump
+
+- Revert "configure: additional flag checks for fcntl() and socket()"
+  
+  This reverts commit 5f2a3b0e48f26d24cb1fefea0dccb92d417dcbf7.
+
+- configure: additional flag checks for fcntl() and socket()
+
+- xc-translit.m4 fix quoting
+
+- configure: avoid direct usage of AS_TR_* macros
+
+- xc-translit.m4 provides transliteration macros with well defined behavior.
+
+Jakub Hrozek (15 Jun 2011)
+- Revert "Only fall back to AF_INET searches when looking for AF_UNSPEC addresses"
+  
+  This reverts commit b5823d65706af687c0e5110af8f0cfdcd068997d.
+  
+  This patch was not reviewed properly before pushing
+
+- Revert "Do not use sized constants in public headers"
+  
+  This reverts commit 22c01e96f7b2ae9923e1baa50bfe3c0d22297a7d.
+  
+  This is a Red Hat specific patch that does not belong into upstream
+
+- Use correct sizeof in ares_getnameinfo()
+
+- Do not leak rr_name on failures inside ares_parse_ptr_reply
+
+- Do not leak rr_name on failures inside ares_parse_a_reply
+
+- Do not leak rr_name on failures inside ares_parse_aaaa_reply
+
+- Do not leak rr_name on failures inside ares_parse_ns_reply
+
+- Fix incorrect sizeof() in ares_save_options
+
+- Fix incorrect allocation in ares_parse_ptr_reply()
+
+- Only fall back to AF_INET searches when looking for AF_UNSPEC addresses
+
+- Do not use sized constants in public headers
+
+Daniel Stenberg (13 Jun 2011)
+- [Jakub Hrozek brought this change]
+
+  ares_free_hostent(NULL) should be a noop
+
+Yang Tse (8 Jun 2011)
+- configure: fix recvfrom 5th arg type qualifier detection (followup)
+
+- configure: fix recvfrom 5th arg type qualifier detection
+  
+  Additionally remove whitespace from EOL
+
+Daniel Stenberg (4 Jun 2011)
+- strlen: use size_t to receive the return
+
+Yang Tse (4 Jun 2011)
+- xlc: avoid preprocessor definition usage when linking
+
+- ares_nowarn: icc 9.1 workaround
+
+- ares_nowarn: header inclusion fix
+
+- ares_init: make ares_private.h last included header again
+
+- compiler warning: fix
+  
+  Fix compiler warning: conversion may lose significant bits
+
+- compiler warning: fix
+  
+  Fix compiler warning: variable was set but never used
+  
+  Fix compiler warning: clobber ignored
+
+- ares_iphlpapi: fix compiler warnings
+
+- winsock: compilation fixes
+  
+  Provide winsock iphlpapi alternative definitions to prevent compilation
+  failures when using a variety of winsock header implementations.
+
+Daniel Stenberg (17 May 2011)
+- [David Stuart brought this change]
+
+  IPv6-on-windows: find DNS servers correctly
+
+- man pages: docs for the c-ares utility programs
+
+- ares_parse_ns_reply.c: remove CVSism
+
+Yang Tse (27 Mar 2011)
+- build: fix header inclusion
+
+- getservbyport replacement for Win CE
+
+- renamed getplatform() to ares__getplatform() to avoid namespace pollution
+
+- configure: fix libtool warning
+  
+  Recent versions of libtool are now tracing usage of AC_CONFIG_MACRO_DIR
+  macro and warn heavily when not used in configure script along with
+  ACLOCAL_AMFLAGS in Makefile.am.  So in order to make libtool happy
+  while keeping backwards compatibility this is added.
+
+- adig: RFC4034 resource record type detection
+  
+  Can be tested with: adig -s 8.8.8.8 -t ANY example.com
+
+- nameser.h: RFC4034 resource record type definitions
+
+- build: move platform stuff to ares_platform.c and ares_platform.h
+
+- build: find out windows platform using GetVersionEx()
+
+- build: use getenv() replacement function for systems which lack it
+
+- setup_once: system error codes for Windows CE
+
+- ares_search: use ERRNO macro for portability sake
+
+- System's errno.h inclusion cleanup follow-up.
+  
+  System's errno.h is conditionally included from setup_once.h
+
+- Windows CE specific adjustment
+  
+  All versions of Windows CE support Winsock 1.1
+
+- System's errno.h inclusion cleanup.
+  
+  System's errno.h is conditionally included from setup_once.h
+
+- ares_init: fix gethostname error detection on winsock platforms
+
+- configure: r-enable temporarily disabled detection of system's inet_ntop()
+  
+  Detection was temporarily disabled in commit 674e044ccb21f2f63537da53565fce868f
+
+Daniel Stenberg (15 Mar 2011)
+- configure: stop using the deprecated AM_INIT_AUTOMAKE syntax
+
+- [Gisle Vanem brought this change]
+
+  Watt-32: use errno
+  
+  Make sure Watt-32 programs use 'errno' even on Win32 targets
+
+Guenter Knauf (18 Feb 2011)
+- Removed commented CLFAGS no longer needed.
+
+- Fixed CFLAGS for NetWare.
+  
+  Added -m32 to enable compilation with x86_64 compilers;
+  added conditional to set -fpcc-struct-return only for gcc compiler.
+
+Daniel Stenberg (18 Feb 2011)
+- [Gisle Vanem brought this change]
+
+  Watt32: fix server init
+  
+  Somewhere in the process, programs using the Watt-32 tcp/ip stack
+  stopped working.
+
+- [Dima Tisnek brought this change]
+
+  config_sortlist: (win32) missing else
+  
+  Without an else there, contents of "pat" that could have been
+  successfully set just above, may be clobbered by successive unsuccessful
+  calls to "xxx_pton" or "ip_addr".
+
+Yang Tse (17 Jan 2011)
+- Makefile.msvc: add a couple of VS version strings
+
+- Makefile.msvc: add a couple of VS version strings
+
+- build: add install target to Makefile.msvc
+
+Daniel Stenberg (27 Dec 2010)
+- ares_set_servers_csv: remove unused variables
+
+- init_by_resolv_conf: fix compiler warnings
+  
+  The code received the return codes in the 'status' variable without
+  using it. Instead we just ignore those particular errors.
+
+- getv4: Value stored to 'dst' is never read
+
+- advance_tcp_send_queue: avoid NULL ptr dereference
+  
+  If given a too large 'num_bytes' value, it would cause a NULL ptr
+  dereference. Instead the code will now break out of the loop at the end
+  of the list.
+
+- [Peter Pentchev brought this change]
+
+  configure: fix a bashism
+
+- cleanup: avoid unsafe typecasts
+  
+  Avoid the risk of reading 16bit data from an unaligned address by using
+  a macro that is adapted for this.
+
+- [Stefan Bühler brought this change]
+
+  ares_expand_name: Fix encoded length for indirect root
+
+Yang Tse (18 Dec 2010)
+- build: add some explicit file references to VS project files
+
+- config-win32: provide HAVE_ASSERT_H definition
+
+- build: include ares_nowarn in sample program VS project files
+
+- build: include ares_nowarn among SAMPLESOURCES and SAMPLEHEADERS
+
+- configure: temporarily disable detection of system's inet_ntop()
+  
+  This is done to allow compilation of ares_inet_ntop() by some daily
+  builds picky compilers that otherwise do not need this function.
+
+- changes: mention last fix
+
+- ares_inet_ntop: remove definition and usage of macro SPRINTF
+  
+  Existing definition of SPRINTF always resulted in sprintf() being used,
+  and sprintf() returning 'int' is already used throughout the library.
+
+- ares_inet_ntop: reapply changes from previous c-ares version (III)
+  
+  - Replace 'u_char' with 'unsigned char'.
+  - Replace 'u_int' with 'unsigned int'.
+  - use macros ERRNO and SET_ERRNO() for errno handling.
+
+- ares_inet_ntop: reapply changes from previous c-ares version (II)
+  
+  - Remove rcsid.
+  - Adjust header file inclusions.
+  - ares_inet_ntop used only on systems without a proper inet_ntop function.
+
+- ares_inet_ntop: reapply changes from previous c-ares version (I)
+  
+  - Replace tabs with spaces.
+  - Use ANSI C style for function declarations and definitions.
+  - Use sizeof with parentheses.
+
+- ares_inet_ntop: fix off by one error triggering out of bounds write
+  
+  ares_inet_ntop would trigger an out of bounds write when the representation
+  of the address required 15 characters, due to not taking in account null
+  termination character.
+  
+  Full import of inet_ntop.c from bind-9.5.3rc1 to pull additional fixes.
+
+- ares_nowarn: add conditional inclusion of assert.h header
+
+- fix compiler warning: conversion may lose significant bits
+
+- ares_inet_net_pton: fix non-rejection of some malformed literals
+  
+  ares_inet_net_pton would return wrong values when excessively large,
+  and invalid, netmasks are used. Fixes are from bind-9.5.3rc1,
+  issue also described in the WLB-2008080064 advisory.
+
+- setup_once: provide ISASCII macro
+
+- configure: inet_net_pton function check adjustments
+  
+  Define HAVE_INET_NET_PTON only when system's inet_net_pton function is IPv6
+  capable and is not affected by the WLB-2008080064 advisory.
+  
+  HAVE_INET_NET_PTON_IPV6 is no longer defined nor used.
+
+- ares_init: fix detection of semicolon comments in resolv.conf
+  
+  File resolv.conf may either use a hash '#' or a semicolon ';' character as an
+  indication that the rest of the line is a comment.  This fixes not recognizing
+  the semicolon as a valid comment indicator in resolv.conf.
+
+- version: start working on 1.7.5
+
+Version 1.7.4 (8 Dec 2010)
+
+Daniel Stenberg (8 Dec 2010)
+- release-preps: CHANGES and RELEASE-NOTES synced
+
+- ares_set_local_*: added in 1.7.4, not before
+
+Yang Tse (3 Dec 2010)
+- build: provide SIZEOF_SIZE_T definition for non-configure builds
+
+- build: config.dos renamed to config-dos.h
+
+- build: provide SIZEOF_SIZE_T netware definition
+
+- ares_gethostbyaddr: fix compiler warning: conversion may lose significant bits
+
+- configure: undo using autobuilds to temporarily verify strict aliasing warnings.
+
+- fix compiler warning: rounding, sign extension, or loss of accuracy may result
+
+Daniel Stenberg (2 Dec 2010)
+- [Ben Noordhuis brought this change]
+
+  ares_parse_a_reply: fix CNAME response parsing
+  
+  Reply to a CNAME query doesn't contain addresses, causing
+  ares_parse_a_reply() to bail out with ARES_ENODATA
+  
+  Bug: http://groups.google.com/group/nodejs/browse_thread/thread/a1268c9ea5e9ad9b
+
+Yang Tse (1 Dec 2010)
+- fix compiler warning: conversion may lose significant bits
+
+- atoi: remove atoi usage
+
+- ares_init: fix compiler warning: conversion may lose significant bits
+
+- configure: fix autoconf warning
+
+- inet_pton: fix compiler warning
+
+- configure: use autobuilds to temporarily verify strict aliasing warnings.
+  
+  Temporarily, When cross-compiling with gcc 3.0 or later, enable strict aliasing
+  rules and warnings. Given that cross-compiled targets autobuilds do not run the
+  test-suite, there is no risk of running code that violates strict aliasing rules
+
+- ares_getnameinfo: Partially revert commit 85520d66e0ac7ac73411bc25e98769a88b2f
+  
+  Upon socket address family and length validation failure return ARES_ENOTIMP
+  in callback again, this is the error code documented in man page and used
+  mostly all over the library.
+
+- ares_getnameinfo: Validate socket address family and length.
+  
+  Validate socket address family and that the socket address length is appropriate
+  for the specified family. Failure is reported with ARES_EBADFAMILY in callback.
+
+- ares_getnameinfo: fix two compiler warnings
+
+- Added another VS10 version string
+
+- Fix GCC 4 compiler warning 'dereferencing type-punned pointer might break strict-aliasing rules'.
+
+- Revert commit 494274e653936335c255a47599970de3df21e7c4
+
+- configure: fix autoconf 2.68 warning: no AC_LANG_SOURCE call detected in body
+
+- Fix compiler warning: array subscript has type 'char'
+
+- Fix GCC 4 compiler warning 'dereferencing type-punned pointer might break strict-aliasing rules'.
+
+- Revert following commits:
+    07bc7ea79509bcc9ef6e09151e81766ed00d3392
+    3392a50ea3f8573ea4b7a9d82b9833dab60cb0e9
+    9912637d32c9987719a1ea12db591aee2941891c
+  
+  The purpose of the whole patch was to silence a compiler warning triggered
+  with GCC 4 on file ares_process.c  The specific compiler warning was
+  'dereferencing type-punned pointer might break strict-aliasing rules'.
+  
+  A simpler patch will follow to equally silence the warning.
+
+- ares_options: reorder header inclusions to make inclusion of
+  ares_private.h the last included one again.
+
+Daniel Stenberg (12 Nov 2010)
+- [Patrik Thunstrom brought this change]
+
+  adig: fix NAPTR parsing
+  
+  I ran across a small "issue" in your adig example.
+  
+  It is simply the last part of the NAPTR record, the replacement element,
+  which is not a string, as currently handled in adig, but a domain name.
+
+- ares_save_options: assignments instead of memcpy
+
+- init_by_options: don't copy an empty sortlist
+  
+  If there aren't any sort items to copy, don't bother. Without this
+  little precaution it would do a malloc(0) which causes undefined
+  behaviors and is frowned upon by curl's memdebug-system.
+
+Guenter Knauf (3 Oct 2010)
+- Minor Watcom makefile tweaks.
+
+Daniel Stenberg (30 Sep 2010)
+- [Mike Crowe brought this change]
+
+  Fix lookup with HOSTALIASES set.
+  
+  ares__read_line returns ARES_EOF when it reaches the end of the
+  file. This will happen every time when reading to the end of the
+  HOSTALIASES file. Unfortunately single_domain treats this error as
+  being fatal.
+  
+  Signed-off-by: Mike Crowe <mac@mcrowe.com>
+
+Ben Greear (24 Aug 2010)
+- Add missing break that caused get_ares_servers to fail.
+  
+  Reported-by: Ning Dong <flintning@163.com>
+  Signed-off-by: Ben Greear <greearb@candelatech.com>
+
+Yang Tse (11 Aug 2010)
+- configure: werror related adjustments
+
+Guenter Knauf (8 Aug 2010)
+- Added copyright string to ares_version.h and make use of it in other files.
+
+- Block created ares_build.h for NetWare to avoid usage from other platforms.
+
+- Fix to overwrite default libname.
+
+- Some more Watcom makefile massage ...
+
+- Some more Watcom makefile massage ...
+
+Ben Greear (4 Aug 2010)
+- sock-addr-storage:  Detect and deal with lack of .ss_family member.
+  
+  AIX, at least, does not have sockaddr_storage.ss_family member.
+  Detect this in the configure logic and use proper #ifdefs in the
+  ares_process logic.
+  
+  Signed-off-by: Ben Greear <greearb@candelatech.com>
+  Tested-by: Tor Arntsen <tor@spacetec.no>
+
+Guenter Knauf (3 Aug 2010)
+- Added Watcom makefile based on libcurl's Makefile.Watcom.
+
+Ben Greear (31 Jul 2010)
+- typo:  Fix compile bug for platforms that don't have sockaddr_storage.
+  
+  Bug was introduced by me in previous commit.
+  
+  Signed-off-by: Ben Greear <greearb@candelatech.com>
+
+- Fix aliasing warning in gcc 4.4.4 (at least).
+  
+  Should be no functional change, though the code gets a bit
+  ugglier.
+  
+  Signed-off-by: Ben Greear <greearb@candelatech.com>
+
+Daniel Stenberg (31 Jul 2010)
+- ares_set_servers_csv: use ISDIGIT
+  
+  The IS*() set of macros are preferred to the regular is*() functions as
+  they help us avoid the most common pitfalls.
+
+Ben Greear (30 Jul 2010)
+- cast arg to isdigit to int
+  
+  Looks like it might silence a warning on Netware build.
+  
+  Signed-off-by: Ben Greear <greearb@candelatech.com>
+
+- remove all uses of uint32_t
+  
+  Previous fix forgot a few.
+  
+  Signed-off-by: Ben Greear <greearb@candelatech.com>
+
+- fix signed v/s unsigned casts warning in ares_gethostbyaddr.c
+  
+  Signed-off-by: Ben Greear <greearb@candelatech.com>
+
+- local-bind-fixup:  Fix inet_pton warning.
+  
+  Conditionally include <arpa/inet.h> for inet_pton
+  headers.
+  
+  Signed-off-by: Ben Greear <greearb@candelatech.com>
+
+- build:  Enable compiling with -Werror.
+  
+  This helps find compile warnings because they simply break
+  the build.
+  
+  To use:
+  ./configure --enable-warnings --enable-werror
+  
+  Signed-off-by: Ben Greear <greearb@candelatech.com>
+
+- ipv6: Fix some build issues related to the local-bind feature.
+  
+  Signed-off-by: Ben Greear <greearb@candelatech.com>
+
+Guenter Knauf (29 Jul 2010)
+- Replaced uint32_t with unsigned int to fix broken builds on a couple of platforms.
+
+Daniel Stenberg (18 Jul 2010)
+- [Ben Greear brought this change]
+
+  local-bind:  Support binding to local interface/IPs
+  
+  Add 3 new functions to set the local binding for the out-going
+  socket connection, and add ares_set_servers_csv() to set a
+  list of servers at once as a comma-separated string.
+  
+  Signed-off-by: Ben Greear <greearb@candelatech.com>
+
+- version: now start on 1.7.4
+
+- [Andrew C. Morrow brought this change]
+
+  fix memory leak in ares_getnameinfo
+
+Version 1.7.3 (11 Jun 2010)
+
+Daniel Stenberg (11 Jun 2010)
+- changelogs: updated for 1.7.3
+
+- [BogDan Vatra brought this change]
+
+  init: allow c-ares to work on Android OS
+
+- changelog: fill in the 1.7.2 changes
+
+- added another pdf to ignore
+
+Yang Tse (11 Jun 2010)
+- add ares_parse_mx_reply.c to VS dsp file
+
+Daniel Stenberg (10 Jun 2010)
+- tarball: add $(CSOURCES) $(HHEADERS) to EXTRA_DIST
+  
+  It's not clear to me why we need this, but we apparently may
+  otherwise not get all files bundled in the dist tarball.
+
+- version: start working on 1.7.3
+
+Version 1.7.2 (10 Jun 2010)
+
+Daniel Stenberg (10 Jun 2010)
+- RELEASE-NOTES: 1.7.2 details added
+
+- [Jakub Hrozek brought this change]
+
+  ares_init: Last, not first instance of domain or search should win
+
+- style: make code less than 80 columns wide
+
+Yang Tse (31 May 2010)
+- [Tor Arntsen brought this change]
+
+  improve alternative definition of bool to use enum instead of unsigned char
+
+- fix VS2010 compiler warnings
+
+Daniel Stenberg (18 Apr 2010)
+- [Jérémy Lal brought this change]
+
+  added ares_parse_mx_reply
+
+- repair the file mode
+
+- remove all $Id$ lines
+
+- remove all .cvsignore files
+
+- spell fix
+  
+  reported by Gregor Jasny on the mailing list
+
+- [Peter Pentchev brought this change]
+
+  Fix a couple of typos and grammar nits.
+
+- ignore the GPG signature files too
+
+- start the journey towards 1.7.2
+
+- no longer CVS tagging
+
+- ignore generated PDFs
+
+Version 1.7.1 (23 Mar 2010)
+
+Daniel Stenberg (23 Mar 2010)
+- 1.7.1
+
+- made README the primary readme file
+  
+  ... and did README.cares to contain a historic reason etc.
+
+- s/CVS/git
+
+- git now, not CVS
+
+- ignore lots of generated files
+
+- [Daniel Johnson brought this change]
+
+  Fix warnings for clang
+
+Yang Tse (17 Mar 2010)
+- replaced intel compiler option -no-ansi-alias with -fno-strict-aliasing
+
+- update outdated serial number
+
+- fix compiler warning
+
+- watt32 compilation fix
+
+- Added another VS10 version string
+
+- fix line break
+
+- removed usage of 's6_addr', fixing compilation issue triggered with no
+  longer using 'in6_addr' but only our 'ares_in6_addr' struct
+
+Daniel Stenberg (5 Mar 2010)
+- Daniel Johnson provided fixes for building with the clang compiler
+
+Yang Tse (5 Mar 2010)
+- Added IPv6 name servers support
+
+Gisle Vanem (5 Mar 2010)
+- Ops!. Readded ares_nowarn.h.
+
+- Added ares_nowarn.c.
+
+Yang Tse (28 Feb 2010)
+- Added SIZEOF_INT and SIZEOF_SHORT definitions for non-configure systems
+
+- Added ares_nowarn.* to VC6 project file
+
+- Added SIZEOF_INT definition
+
+- fix compiler warning
+
+- fix compiler warning
+
+- fix compiler warning
+
+Daniel Stenberg (17 Feb 2010)
+- ares_reinit()
+  
+  - To allow an app to force a re-read of /etc/resolv.conf etc, pretty much
+    like the res_init() resolver function offers
+
+- - Tommie Gannert pointed out a silly bug in ares_process_fd() since it didn't
+    check for broken connections like ares_process() did. Based on that, I
+    merged the two functions into a single generic one with two front-ends.
+
+Yang Tse (30 Dec 2009)
+- VMS specific preprocessor symbol checking adjustments
+
+- Mention last changes
+
+- - Fix configure_socket() to use ares_socket_t instead of int data type.
+
+- - Where run-time error checks enabling compiler option /GZ was used it is now
+    replaced with equivalent /RTCsu for Visual Studio 2003 and newer versions.
+  
+  - Compiler option /GX is now replaced with equivalent /EHsc for all versions.
+
+- - Ingmar Runge noticed that Windows config-win32.h configuration file
+    did not include a definition for HAVE_CLOSESOCKET which resulted in
+    function close() being inappropriately used to close sockets.
+
+Daniel Stenberg (30 Nov 2009)
+- start working on 1.7.1
+
+Version 1.7.0 (27 Nov 2009)
+
+Yang Tse (27 Nov 2009)
+- Preserve empty line following last target
+
+- - Larry Lansing fixed ares_parse_srv_reply to properly parse replies
+    which might contain non-SRV answers, skipping over potential non-SRV
+    ones such as CNAMEs.
+
+- When using icc, compile with -fpic and link with intel dynamic libraries.
+
+- Added 'currently' in italics to insist on transient situation.
+
+- Fix language
+
+- Daniel wants upcoming release to be 1.7.0
+
+- Mention last changes
+
+- - Removed from external interface preprocessor symbol definition for
+    CARES_HAVE_ARES_FREE_DATA. Current functionality of ares_free_data()
+    makes it unnecessary.
+
+- Added README.msvc
+
+- Changed c-ares naming conventions when using MSVC as described in README.msvc
+
+- - Mention other recent changes
+
+- - Jakub Hrozek renamed addrttl and addr6ttl structs to ares_addrttl and
+    ares_addr6ttl in order to prevent name space pollution, along with
+    necessary changes to code base and man pages.This change does not break
+    ABI, there is no need to recompile existing applications. But existing
+    applications using these structs with the old name will need source code
+    adjustments when recompiled using c-ares 1.6.1.
+
+- - Jakub Hrozek fixed more function prototypes in man pages to sync them
+    with the ones declared in ares.h
+
+- Make configure remove the ares_build.h file included in distribution tarballs.
+
+- Fix macro redefinition.
+
+- Fix name space pollution.
+
+- Allow using different extra import libraries for debug and release builds.
+
+- Add manifest stuff to msvc makefile
+
+- Sync man page with reality
+
+- Add missing external API decoration for ares_set_socket_callback()
+
+- Add ares_free_data() man page.
+
+- - Provide in external interface preprocessor symbol definitions for
+    CARES_HAVE_ARES_FREE_DATA as an indication of function availability.
+
+- Remove typecast
+
+- Fix comment
+
+- Add ares_data.c and ares_data.h
+
+- Jakub Hrozek modified ares_parse_srv_reply() and ares_parse_txt_reply() API
+  to return a linked lists of results. These were also modified to internally
+  use the ares_data memory struct and as such its result must be free'ed with
+  ares_free_data().
+
+- Initial support for the generic ares_free_data() function that will allow
+  applications to free memory allocated and returned by some c-ares funtions.
+
+- Make usage of calloc()'s arguments consistent with rest of code base
+
+- workaround icc 9.1 optimizer issue
+
+- Add icc fvisibility bug test
+
+- Fix icc 9.0 compiler warning: external definition with no prior declaration
+
+- Fix three var names
+
+- Add check for assert.h header file
+
+- getaddrinfo is fully thread safe on solaris versions which
+  implement the function even when h_errno is not a macro.
+  
+  The h_errno macro test now only done on systems for which there
+  is no hard coded knowledge about getaddrinfo's thread safeness.
+
+- Remove files generated on previous buildconf/configure run
+
+- Remove enable-thread / disable-thread configure option. These were only placebo
+  options. The library is always built as thread safe as possible on every system.
+
+- Refactor how preprocessor symbol _THREAD_SAFE definition is done.
+
+- Assume that getaddrinfo is thread safe, unless hard coded
+  knowledge says the contrary or h_errno is not defined.
+
+- Related with the threadsafe capability of getaddrinfo:
+  
+  - Constantine Sapuntzakis reported that Darwin 6.0 a.k.a. MAC OS X 10.2
+    and newer have a threadsafe getaddrinfo.
+  
+  - Fix Dragonfly BSD triplet detection.
+  
+  - In case the hard-coded knowledge says that getaddrinfo is threadsafe,
+    an additional check is done to verify that h_errno is also defined.
+    If h_errno isn't defined, we finally assume that it isn't threadsafe.
+    Jamie Lokier provided the inspiration for this extra check.
+
+- AIX 5.2 and newer have threadsafe getaddrinfo.
+  
+  Add some comments to better understand what the regex's pretend to achieve.
+
+- HP-UX 11.11 and later have threadsafe getaddrinfo
+
+- Check if getaddrinfo is threadsafe when function check allows it to be used
+
+- Renamed fpGetNetworkParams and fpSystemFunction036 to avoid namespace pollution with static library
+
+- Add kernel32.lib
+
+- Mention last changes
+
+- Reinstate copyright symbol lost in previous commit
+
+- Make some strings different in resource file for debug or release builds
+
+- Ignore more subdirs
+
+- Fix compiler warning: conditional expression is constant
+
+- Sync linker and resource compiler options with Makefile.msvc
+
+- Follow Makefile.msvc subdirectory naming scheme, and sync compiler options
+
+- Updated MSVC makefile that allows building dynamic and static
+  c-ares libraries in debug and release flavours.
+  
+  Additionally each of the three sample programs is built against
+  each of the four possible c-ares libraries, generating all this
+  a total number of 12 executables and 4 libraries.
+
+- Test for USE_WINSOCK since it is more restrictive than WIN32
+
+- Make header inclusion depend on HAVE_*_H definition
+
+- Remove unneeded preprocessor directives
+
+- Adjust c-ares include paths for memory tracking enabled (--enable-curldebug) builds
+
+- source files used by sample programs
+
+- Renamed c-ares setup.h to ares_setup.h
+
+- Adjust include paths to take in account that currently:
+  
+  c-ares with --enable-curldebug uses memdebug.h from libcurl's lib subdirectory.
+  
+  memdebug.h needs access to libcurl's setup.h from libcurl's lib subdirectory
+  and also needs access to libcurl's generated curl_config.h
+
+- Undo old temporary change once used for testing purposes
+
+- Mention many changes
+
+- Mention --enable-symbol-hiding configure option
+
+- Symbol hiding configure options renamed to the hopefully less ambiguous
+  --enable-symbol-hiding and --disable-symbol-hiding as well as related
+  macro names and some internal variables used for them.
+  
+  Related configuration file preprocessor symbols named to
+  CARES_SYMBOL_HIDING and CARES_SYMBOL_SCOPE_EXTERN.
+
+- Header inclusion depending on HAVE_* symbol.
+  Fix two typos.
+
+- Comparison of the Initial revision of this file with ares_parse_a_reply.c
+  shows that this one is actually a modified copy of ares_parse_a_reply.c.
+  
+  In order to comply with ares_parse_a_reply.c's M.I.T. license, the old
+  1998 M.I.T. copyright notice is now also preserved in this file the same
+  as it is done in other ares_parse_*.c files.
+
+- Add CVS Id tag.
+  Fix identation of some license lines.
+
+- Add CVS Id tag.
+
+- Fix comment
+
+- In no particular order, changed/fixed all of the following in
+  ares_parse_txt_reply() current version:
+  
+  - Fixed a couple of potential double free's.
+  
+  - Fixed memory leaks upon out of memory condition.
+  
+  - Fixed pointer arithmetic.
+  
+  - Setting ntxtreply to zero upon entry for all failure cases.
+  
+  - Changed data type to size_t for variables substr_len, str_len and
+    the length member of ares_txt_reply struct.
+  
+  - Avoided a couple of memcpy() calls.
+  
+  - Changed i data type to unsigned int to prevent compiler warnings.
+  
+  - Adjusted a comment.
+  
+  - Use ARES_SUCCESS literal for successfull completion.
+  
+  - Added CVS Id tag.
+
+- Add c-ares DLL resource file to distribution archive
+
+- ignore files
+
+- Empty subdir
 
-* October 29, 2009 (Yang Tse)
 - Updated MSVC 6.0 workspace and project files that allows building
   dynamic and static c-ares libraries in debug and release flavours.
+  
   Additionally each of the three sample programs is built against
   each of the four possible c-ares libraries, generating all this
   a total number of 12 executables and 4 libraries.
 
-* October 28, 2009 (Yang Tse)
+Daniel Stenberg (29 Oct 2009)
+- no need to check for NULL pointers before dereferencing, as the pointers
+  MUST be valid and they are dereferenced further down in the function
+  unconditionally!
+
+- shorten the descriptions somewhat
+
+- update to the new struct name
+
+- Jakub Hrozek added ares_parse_txt_reply() for TXT parsing
+
+- use 'ares_srv_reply' for proper name-spacing
+
+Yang Tse (29 Oct 2009)
+- Add reference for ares_parse_srv_reply.pdf
+
+- Add reference for ares_parse_srv_reply docs
+
+- External API function linkage decoration adjustment
+
+- External API function linkage decoration adjustment
+
 - Initial step towards the ability to reduce c-ares exported symbols
-  when built as a shared library based on the 'visibility' attribute
-  for GNUC and Intel compilers and based on __global for Sun compilers,
-  taking also in account __declspec function decoration for Win32 and
-  Symbian DLL's.
+  based on the 'visibility' attribute for GNUC and __global for Sun
+  compilers, taking also in account __declspec function decoration
+  for Win32 and Symbian DLL's.
+  
+  Introducing configure options --enable-hidden-symbols and
+  --disable-hidden-symbols following libcurl's naming.
 
-* October 27, 2009 (Yang Tse)
-- Fixed Pelles C Win32 target compilation issues.
+- Fix comment
+
+- Fix spelling
+
+- Fix Pelles C Win32 target compilation issues
 
-* October 23, 2009 (Yang Tse)
 - John Engelhart noticed an unreleased problem relative to a duplicate
   ARES_ECANCELLED error code value and missing error code description.
 
-* October 7, 2009 (Yang Tse)
-- Overhauled ares__get_hostent() Fixing out of bounds memory overwrite
-  triggered with malformed /etc/hosts file. Improving parsing of /etc/hosts
-  file. Validating requested address family. Ensuring that failures always
-  return a NULL pointer. Adjusting header inclusions.
+- Fix compiler warning: local variable may be used without having been initialized
+
+- Use *_CHECK_PATH_SEPARATOR_REQUIRED to ensure that *_CHECK_PATH_SEPARATOR
+  is only expanded and included once in the configure script.
+
+- Our _AS_PATH_SEPARATOR_PREPARE override is now m4_defun'd instead of m4_define'd
+  due to autoconf 2.64 m4_require'ing it in _AS_SHELL_SANITIZE indirectly through
+  _AS_PATH_WALK.
+
+- Fix compiler warning: argument is incompatible with corresponding format string conversion
 
-* October 6, 2009 (Yang Tse)
-- Fix ssize_t redefinition errors on WIN64 reported by Alexey Simak.
+- Fix potential out-of-bounds read
 
-* September 29, 2009 (Yang Tse)
-- Make configure script also check if _REENTRANT definition is required to
+- Fix compiler warning: loop without body
+
+- Fix compiler warning
+
+- Fix compiler warning
+
+- Fix compiler warning
+
+- Fix compiler warning: addition result could be truncated before cast to bigger sized type
+
+- Overhauled ares__get_hostent()
+  
+  - Fixing out of bounds memory overwrite triggered with malformed /etc/hosts file.
+  - Improving parsing of /etc/hosts file.
+  - Validating requested address family.
+  - Ensuring that failures always return a NULL pointer.
+  - Adjusting header inclusions.
+
+- Fix ssize_t redefinition errors on WIN64 reported by Alexey Simak
+
+- more files to ignore
+
+- Check if _REENTRANT definition is required to
   make errno available as a preprocessor macro.
 
-* September 7, 2009 (Yang Tse)
-- Add T_SRV portability check to ares_parse_srv_reply.c
+- Attempt to silence bogus compiler warning: "Potential null pointer dereference"
+
+- ignore more files
+
+Gisle Vanem (7 Sep 2009)
+- Suppress warnings about unused prototypes in Watt32 and Win32 programs.
+
+- Update email address.
+
+- Update my email address. Add ares_config.h as dependency for 'make depend'.
+
+Yang Tse (6 Sep 2009)
+- T_SRV portability check
+
+Gunter Knauf (5 Sep 2009)
+- changed includes to match style how we do with all other *.c files.
+
+- changed u_int16_t to unsigned short because it is the only place within ares and curl where such a type would be used;
+  also it broke many autobuilds. We should probably introduce an ares_port_t if we want to use a type here.
+
+Gisle Vanem (5 Sep 2009)
+- Replace 'uint16_t' with 'u_int16_t' since the latter is used in ares.h.
+
+- Added 'ares_parse_srv_reply.obj'. Added definition of 'u_int16_t'. This is I don't like; we should not depend on such non-universal types in a public header. But this is just a quick fix.
+
+Daniel Stenberg (4 Sep 2009)
+- - Jakub Hrozek added ares_parse_srv_reply() for SRV parsing
+
+Steinar H. Gunderson (27 Aug 2009)
+- Support lookup of IPv4 literals in ares_gethostbyname(), even when the address family is set to AF_INET6.
+
+Gisle Vanem (3 Aug 2009)
+- Remove call to LoadLibrary(). (leftover from debugging).
+
+- Fix bad sentence.
+
+Daniel Stenberg (3 Aug 2009)
+- - Timo Teras changed the reason code used in the resolve callback done when
+    ares_cancel() is used, to be ARES_ECANCELLED instead of ARES_ETIMEOUT to
+    better allow the callback to know what's happening.
+
+- - Joshua Kwan fixed the init routine to fill in the defaults for stuff that
+    fails to get inited by other means. This fixes a case of when the c-ares
+    init fails when internet access is fone.
 
-* 4 Sep 2009 (Daniel Stenberg)
-- Jakub Hrozek added ares_parse_srv_reply() for SRV parsing
+Gunter Knauf (16 Jul 2009)
+- test if adding ../lib to includes can fix the current break ...
 
-* 3 Aug 2009 (Daniel Stenberg)
-- Joshua Kwan fixed the init routine to fill in the defaults for stuff that
-  fails to get inited by other means. This fixes a case of when the c-ares
-  init fails when internet access is fone.
+- renamed generated config.h to ares_config.h in order to avoid clashes when libcurl is used with other projects which also have a config.h.
 
-- Timo Teras changed the reason code used in the resolve callback done when
-  ares_cancel() is used, to be ARES_ECANCELLED instead of ARES_ETIMEOUT to
-  better allow the callback to know what's happening.
+Yang Tse (21 Jun 2009)
+- Refactor how libraries are checked for connect() function, follow-up.
 
-* 14 Jul 2009 (Guenter Knauf)
-- renamed generated config.h to ares_config.h to avoid any future clashes
-  with config.h from other projects.
+- Refactor how libraries are checked for connect() function,
+  and check for connect() as it is done for other functions.
 
-* June 20 2009 (Yang Tse)
-- Refactor how libraries are checked for connect() function in configure
-  script and check for connect() as it is done for other functions.
+Gisle Vanem (20 Jun 2009)
+- Remove unneeded defines.
 
-* June 19 2009 (Yang Tse)
-- Make sclose() function-like macro definition used to close a socket,
+- Use select_s() and not select().
+
+Yang Tse (19 Jun 2009)
+- sclose() function-like macro definition used to close a socket,
   now solely based on HAVE_CLOSESOCKET and HAVE_CLOSESOCKET_CAMEL
-  config file preprocessor definitions
+  config file preprocessor definitions.
+
+- add CloseSocket camel case function check
+
+- check for socket() and closesocket() as it is done for other functions
+
+- Remove HAVE_CONFIG_H definition from here,
+  CFLAGS from common.dj already defines it.
+
+- initial step towards decoupling c-ares from libcurl for DOS
+
+- don't ignore these subdirs, they must be removed first
+
+- Remove DEBUGBUILD symbol definition, is not required for programs using the library.
+
+- DEBUGBUILD symbol definition for debug builds
+
+- ignore some subdirs
+
+- fix comment
+
+- Try to make more clear that --enable-curldebug has nothing to do with --enable-debug for this library.
+
+- Revert last change, it is inappropriate.
+
+Gisle Vanem (12 Jun 2009)
+- Replace CURLDEBUG with DEBUGBUILD.
+
+Yang Tse (11 Jun 2009)
+- when running automake copy missing files instead of symlinking them
+
+- Adjusted to take in account that...
+  
+  With the curl memory tracking feature decoupled from the debug build feature,
+  CURLDEBUG and DEBUGBUILD preprocessor symbol definitions are used as follows:
+  
+  CURLDEBUG used for curl debug memory tracking specific code (--enable-curldebug)
+  
+  DEBUGBUILD used for debug enabled specific code (--enable-debug)
+
+- c-ares' --enable-debug --enable-curldebug decoupling follow-up
+
+- mention last changes
+
+- Remove buildconf.bat from release and daily snapshot archives.
+  
+  buildconf.bat is only for CVS tree builds.
+
+- Ensure that buildconf.bat does nothing unless it is used with a CVS checkout.
+
+- CVS-INFO file only present in CVS tree, never in release nor daily snapshot
+  archives. Used as a sentinel file in buildconf.bat to differentiate CVS builds.
+
+Gisle Vanem (8 Jun 2009)
+- Update comment about "ML". Removed "-D_USE_32BIT_TIME_T" (not a requirement).
+
+Yang Tse (8 Jun 2009)
+- just comment it out
 
-* June 18 2009 (Yang Tse)
-- Add CloseSocket camel case function check for configure script.
+- For debugging purposes...
+  
+  Disable the '-export-symbols-regex' to discard this as the origin
+  of link failures related with shared libraries and non-GNU linkers.
 
-* June 17 2009 (Yang Tse)
-- Check for socket() and closesocket() as it is done for other functions
-  in configure script.
+- c-ares Makefile.am back to using $(top_builddir) for *_LDADD
 
-* June 11 2009 (Yang Tse)
-- Modified buildconf so that when automake runs it copies missing files
-  instead of symlinking them.
+- c-ares' -no-undefined and --enable-curldebug adjustments
 
-* June 8 2009 (Yang Tse)
-- Removed buildconf.bat from release and daily snapshot archives. This
-  file is only for CVS tree checkout builds.
+- Use relative path to built c-ares tree libtool library
 
-* May 26 2009 (Yang Tse)
-- Added --enable-curldebug configure option to enable and disable building
-  with the low-level curl debug memory tracking 'feature' to allow decoupled
-  setting from --enable-debug, allowing again to build c-ares independently
-  out of the CVS tree.
+- John E. Malmberg noticed that the configure script was failing to detect the
+  timeval struct on VMS when building with _XOPEN_SOURCE_EXTENDED undefined due
+  to definition taking place in socket.h instead of time.h
 
-  For the c-ares library option --enable-debug enables debug build features
-  which are _not_ related with memory tracking. For the c-ares library when
-  --enable-debug is given it does not enable the memory tracking feature. If
-  you wish to enable the curl debug memory tracking you must use configure
-  option --enable-curldebug explicitily to do so.
+- Fix compiler warning: out of bound access
 
-  Internally, definition of preprocessor symbol DEBUGBUILD restricts code
-  which is only compiled for debug enabled builds. And symbol CURLDEBUG is
-  used to differentiate code which is _only_ used for memory tracking.
+- fix compilation on AIX
 
-  Make ares_init(), ares_dup() and ares_init_options() fail returning
-  ARES_ENOTINITIALIZED if library initialization has not been performed
-  calling ares_library_init().
+- c-ares' --enable-curldebug adjustments
 
-* May 20 2009 (Yang Tse)
-- Added ares_library_init() and ares_library_cleanup() man pages.
+- Remove temporarily introduced memory leak.
 
-* May 19 2009 (Yang Tse)
-- Introduced ares_library_init() and ares_library_cleanup() functions.
+- Temporarily introduce a memory leak to verify curl debug memory tracking works.
 
-  This is an API and ABI break for Win32/64 systems. Non-Win32/64 build targets
-  using c-ares 1.7.0 can still survive without calling these functions. Read all
-  the details on ares_library_init(3) and ares_library_cleanup(3) man pages that
-  are included.
+- Allow curl debug memory tracking when building a shared library on
+  systems which support external, undefined, symbols in shared libraries.
 
-  curl/libcurl 7.19.5 is fully compatible with c-ares 1.7.0 on all systems.
+Daniel Stenberg (26 May 2009)
+- language fix
 
-  In order to use c-ares 1.7.0 with curl/libcurl on Win32/64 systems it is
-  required that curl/libcurl is 7.19.5 or newer. In other words, it is not
-  possible on Win32/64 to use c-ares 1.7.0 with a curl/libcurl version less
-  than 7.19.5
+Yang Tse (26 May 2009)
+- Make ares_init(), ares_dup() and ares_init_options() return ARES_ENOTINITIALIZED
+  if library initialization has not been performed calling ares_library_init().
 
-* May 11 2009 (Daniel Stenberg)
-- Gregor Jasny made c-ares link with libtool 's -export-symbols-regex option to
-  only expose functions starting with ares_.
+- c-ares's --enable-curldebug configure option decoupled from c-ares's --enable-debug
+
+- Prevent copying 'sourced' manpages for build targets that don't use them.
+
+Daniel Stenberg (23 May 2009)
+- minor edits
+
+Yang Tse (21 May 2009)
+- Include .pdf versions of c-ares man pages in distribution tarball.
+
+- Allow generation of .html and .pdf versions of c-ares man pages.
+
+Gisle Vanem (21 May 2009)
+- $(OBJ_DIR)/ares_getopt.o must be cleaned explicitly.
+
+Yang Tse (20 May 2009)
+- Mention last changes
+
+- Initial ares_library_cleanup(3) man page
+
+- Update man page
+
+- Update man page
+
+- Initial ares_library_init(3) man page attempt
+
+- Force revision update, to force CVS to update the $Id date string format
+
+- Add same copyright notice as other c-ares files
+
+- Fix case
+
+- Remove run-time requirement for advapi32.dll since
+  c-ares can work even with no advapi32.dll at all.
+
+- Intentionally avoid checking if the address of SystemFunction036, a.k.a.
+  RtlGenRandom, has been located or not. This function is only available on
+  WinXP and later. When unavailable c-ares uses portable rand() function.
+
+- - Provide in external interface preprocessor symbol definitions for
+    CARES_HAVE_ARES_LIBRARY_INIT and CARES_HAVE_ARES_LIBRARY_CLEANUP
+    to ease the use of new capabilities.
+  
+  - Move ares_version() prototype to ares.h
+
+- Introduction of ares_library_init() and ares_library_cleanup()
+
+- Introduction of ares_library_init() and ares_library_cleanup()
+
+- remove outdated comment
+
+- Fix preprocessor conditional expression
+
+- fiX *__SOCKLEN_T definitions for remaining targets
+
+- *__SOCKLEN_T definitions for OS400 already fixed
+
+- fIX *__SOCKLEN_T definitions for SYMBIAN32 and VMS targets
+
+Daniel Stenberg (11 May 2009)
+- - Gregor Jasny made c-ares link with libtool 's -export-symbols-regex option to
+    only expose functions starting with ares_.
+
+Yang Tse (11 May 2009)
+- Remove experimental check. Currently there's no need for it.
 
-* May 7 2009 (Yang Tse)
 - Fix an m4 overquoting triggering a spurious 'AS_TR_CPP' symbol definition
   attempt in generated config.h
 
-* May 2 2009 (Yang Tse)
-- Use a build-time configured ares_socklen_t data type instead of socklen_t.
+- Proper naming for the experimental compiler test and moved to *-compilers.m4
+
+- Moved *_CHECK_COMPILER_HALT_ON_ERROR and *_CHECK_COMPILER_ARRAY_SIZE_NEGATIVE to *-compilers.m4 along with other *_CHECK_COMPILER_*
+
+- fIX *__SOCKLEN_T definitions for OS400 and generic GCC targets
+
+- fIX *__SOCKLEN_T definitions for MVS and 370 targets
+
+- fIX *__SOCKLEN_T definitions for several Windows target tool-chains
+
+- HP-UX's X/Open network library requirement check follow-up
+
+- HP-UX's X/Open network library requirement check follow-up
+
+- Use build-time configured ares_socklen_t instead of socklen_t
+
+- David McCreedy's "TPF-platform specific changes to various files" patch follow-up
+
+Daniel Stenberg (1 May 2009)
+- s/libcurl/c-ares
+
+- version number typo fix
+
+Yang Tse (1 May 2009)
+- David McCreedy's "TPF-platform specific changes to various files" patch
+
+- Check definition of _XOPEN_SOURCE_EXTENDED with the compiler
+
+- Check if X/Open network library is required
+
+- cope with ares_build.h and ares_rules.h follow-up
+
+- Added some notes regarding ares_build.h
+
+- fix EOL
+
+- fix EOL
+
+- cope with ares_build.h and ares_rules.h
+
+- buildconf.bat for CVS-tree c-ares
+
+- Use 'unsigned int' instead of size_t attempting to avoid header inclusion
+
+- NetWare LibC's getpeername() third argument data type is size_t
+
+- Remove temporary debug tracing for ares_socklen_t Windows targets
+
+- ares_socklen_t follow-up
+
+- ares_build.h Windows follow-up
+
+- Add temporary debug tracing for ares_socklen_t Windows targets
+
+- ares_build.h NetWare follow-up
+
+- ares_build.h NetWare attempt
+
+- Initial step towards a configure time ares_socklen_t definition
+
+- ignore stamp-h*
+
+- Added CARES_INCLUDES_SYS_TYPES
+
+- Initial step towards a configure time curl_socklen_t definition
+
+- avoid use of alloca()
 
-* April 21 2009 (Yang Tse)
 - Moved potential inclusion of system's malloc.h and memory.h header files to
   setup_once.h.  Inclusion of each header file is based on the definition of
   NEED_MALLOC_H and NEED_MEMORY_H respectively.
 
-* March 11 2009 (Yang Tse)
-- Japheth Cleaver fixed acountry.c replacing u_long with unsigned long.
+- ignore
+
+Gisle Vanem (18 Apr 2009)
+- Added '-DHAVE_LIMITS_H'.
+
+Yang Tse (17 Apr 2009)
+- remove compiler options used while debugging the icc 9.1 optimizer issue
+
+- moved HAVE_LIMITS_H to common defines
+
+- Set HP-UX compiler warning level back to the one that exposes
+  the socklen_t issue on this platform.
+
+- HAVE_LIMITS_H definition for NetWare CLIB
+
+- use HAVE_LIMITS_H symbol to protect limits.h inclusion
+
+- fix compiler warning: implicit conversion shortens 64-bit value into a 32-bit value
+
+- s/u_long/unsigned long/
+
+- Do not halt compilation when using VS2008 to build a Windows 2000 target
+
+- ignore
 
-* February 20 2009 (Yang Tse)
-- Do not halt compilation when using VS2008 to build a Windows 2000 target.
+Phil Blundell (3 Feb 2009)
+- * February 3 2009 (Phil Blundell)
+  - If the server returns garbage or nothing at all in response to an AAAA query,
+    go on and ask for A records anyway.
 
-* February 3 2009 (Phil Blundell)
-- If the server returns garbage or nothing at all in response to an AAAA query,
-  go on and ask for A records anyway.
+Daniel Stenberg (31 Jan 2009)
+- - ares_gethostbyname() now accepts 'AF_UNSPEC' as a family for resolving
+    either AF_INET6 or AF_INET. It works by accepting any of the looksups in the
+    hosts file, and it resolves the AAAA field with a fallback to A.
 
-* January 31 2009 (Daniel Stenberg)
-- ares_gethostbyname() now accepts 'AF_UNSPEC' as a family for resolving
-  either AF_INET6 or AF_INET. It works by accepting any of the looksups in the
-  hosts file, and it resolves the AAAA field with a fallback to A.
+Gisle Vanem (18 Jan 2009)
+- fopen() returns error in 'errno' even on Windows.
+  So don't use ERRNO (GetLastError()). Trimmed trailing
+  blanks.
 
-* January 14 2009 (Daniel Stenberg)
-- ares.h no longer uses the HAVE_STRUCT_IN6_ADDR define check, but instead it
-  now declares the private struct ares_in6_addr for all systems instead of
-  relying on one possibly not present in the system.
+- Constified some arguments in local functions.
 
-* January 13 2009 (Phil Blundell)
-- ares__send_query() now varies the retry timeout pseudo-randomly to avoid
-  packet storms when several queries were started at the same time.
+Daniel Stenberg (14 Jan 2009)
+- - ares.h no longer uses the HAVE_STRUCT_IN6_ADDR define check, but instead it
+    now declares the private struct ares_in6_addr for all systems instead of
+    relying on one possibly not present in the system.
 
-* January 11 2009 (Daniel Stenberg)
-- Phil Blundell added the internal function ares__expand_name_for_response()
-  that is now used by the ares_parse_*_reply() functions instead of the
-  ares_expand_name() simply to easier return ARES_EBADRESP for the cases where
-  the name expansion fails as in responses that really isn't expected.
+Phil Blundell (13 Jan 2009)
+- - ares__send_query() now varies the retry timeout pseudo-randomly to avoid
+    packet storms when several queries were started at the same time.
 
-Version 1.6.0 (Dec 9, 2008)
+Daniel Stenberg (11 Jan 2009)
+- - Phil Blundell added the internal function ares__expand_name_for_response()
+    that is now used by the ares_parse_*_reply() functions instead of the
+    ares_expand_name() simply to easier return ARES_EBADRESP for the cases where
+    the name expansion fails as in responses that really isn't expected.
 
-* December 9 2008 (Gisle Vanem)
+Gunter Knauf (30 Dec 2008)
+- added HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID to ares Makefile.netware and sync'd with other Makefile.netware.
 
-  Fixes for Win32 targets using the Watt-32 tcp/ip stack.
+Daniel Stenberg (9 Dec 2008)
+- use the new URL
 
-* Dec 4 2008 (Daniel Stenberg)
+- start over on the 1.6.1 release...
 
-  Gregor Jasny provided the patch that introduces ares_set_socket_callback(),
+Version 1.6.0 (9 Dec 2008)
+
+Daniel Stenberg (9 Dec 2008)
+- add space
+
+Gisle Vanem (9 Dec 2008)
+- Fix for Win32 targets using Watt-32.
+
+Dan Fandrich (9 Dec 2008)
+- C89 compilers (like Minix' ACK) only need to handle 31 functions arguments
+  so split a long sprintf into two calls to get below that number.
+
+Gisle Vanem (8 Dec 2008)
+- Added needed defines for Watt-32 on Windows.
+
+- Undefine 'optarg', 'optind' and 'opterr' when using Watt-32
+  (to get correct linkage on Windows).
+
+- ares_writev() shall not be exported when using Watt-32 (has writev).
+  Added _USE_32BIT_TIME_T to avoid runtime warning. Applies to
+  VC-2008+ only.
+
+- Removed unneeded defines HAVE_SIGNAL_H, HAVE_SIG_ATOMIC_T,
+  RETSIGTYPE and HAVE_PROCESS_H.
+
+Daniel Stenberg (4 Dec 2008)
+- the initial version of the ares_set_socket_callback man page
+
+- Gregor Jasny provided the patch that introduces ares_set_socket_callback(),
   and I edited it to also get duped by ares_dup().
 
-* Dec 3 2008 (Daniel Stenberg)
+Dan Fandrich (4 Dec 2008)
+- Bring the sys/include.h include test in line with curl's.
 
-  API changes:
+Daniel Stenberg (3 Dec 2008)
+- Let's not call ares_save_options() deprecated just yet
 
-  I made sure the public ares_config struct looks like before and yet it
-  supports the ROTATE option thanks to c-ares now storing the "optmask"
-  internally. Thus we should be ABI compatible with the past release(s)
-  now. My efforts mentioned below should not break backwards ABI compliance.
+- Introduce ares_dup(3) and new thoughts about API/ABI and how to move forwards.
+  Also discussed on the ml.
 
-  Here's how I suggest we proceed with the API:
+Dan Fandrich (2 Dec 2008)
+- Make sure sys/socket.h is included before netinet/in.h (required by
+  OpenWatcom C, and condoned by SUS)
 
-  ares_init() will be primary "channel creator" function.
+Daniel Stenberg (1 Dec 2008)
+- minor indent fix
 
-  ares_init_options() will continue to work exactly like now and before. For
-  starters, it will be the (only) way to set the existing options.
+- Convert the public config struct to the same binary size/construct as in the
+  latest releases to remain ABI compatible.
 
-  ares_save_options() will continue to work like today, but will ONLY save
-  options that you can set today (including ARES_OPT_ROTATE actually) but new
-  options that we add may not be saved with this.
+Gisle Vanem (29 Nov 2008)
+- Added '-DHAVE_GETHOSTNAME'.
 
-  Instead we introduce:
+Dan Fandrich (29 Nov 2008)
+- Make sure sys/socket.h is included before netinet/in.h (required by
+  OpenWatcom C)
 
-  ares_dup() that instead can make a new channel and clone the config used
-  from an existing channel. It will then clone all config options, including
-  future new things we add.
+- Netware has gethostname()
 
-  ares_set_*() style functions that set (new) config options. As a start we
-  simply add these for new functionality, but over time we can also introduce
-  them for existing "struct ares_options" so that we can eventually deprecate
-  the two ares_*_options() functions.
+- Fixed a couple of typos
 
-  ares_get_*() style functions for extracting info from a channel handle that
-  should be used instead of ares_save_options().
+- Don't tweak the HAVE_* macros when using autoconf
 
-* Nov 26 2008 (Yang Tse)
-- Brad Spencer provided changes to allow buildconf to work on OS X.
+- Make use of gethostname() conditional on it being available
+
+- Only set TCP_NODELAY when it exists
 
+Daniel Stenberg (28 Nov 2008)
+- updated with changes, preparing for a release soon
+
+Yang Tse (26 Nov 2008)
 - Gerald Combs fixed a bug in ares_parse_ptr_reply() which would cause a
   buffer to shrink instead of expand if a reply contained 8 or more records.
 
-* Nov 25 2008 (Yang Tse)
+- Brad Spencer provided changes to allow buildconf to work on OS X.
+
 - In preparation for the upcomming IPv6 nameservers patch, the internal
   ares_addr union is now changed into an internal struct which also holds
   the address family.
 
-* Nov 19 2008 (Daniel Stenberg)
-- Brad Spencer brought the new function ares_gethostbyname_file() which simply
-  resolves a host name from the given file, using the regular hosts syntax.
+Dan Fandrich (20 Nov 2008)
+- Make checking for struct ifreq a prerequisite for setting
+  HAVE_IOCTL_SIOCGIFADDR since it's needed to use SIOCGIFADDR and Watcom C
+  doesn't currently define it.
+
+Daniel Stenberg (20 Nov 2008)
+- use unsigned short better intead of mixing with ints to prevent compiler
+  warnings
+
+- please the picky compilers by staying with short as the data we get is short
+  only
+
+- - Brad Spencer brought the new function ares_gethostbyname_file() which simply
+    resolves a host name from the given file, using the regular hosts syntax.
+
+Yang Tse (19 Nov 2008)
+- user provided PATH_SEPARATOR always overrides auto-detected one
+
+- attempting to keep lines below 80 chars
+
+- provide a common PATH_SEPARATOR check method which is required by
+  upcomming work to support the broadest range of Autoconf versions
+
+- check for gethostbyaddr and gethostbyname as it is done for other functions
+
+- Make configure script check if ioctl with the SIOCGIFADDR command can be
+  used, and define HAVE_IOCTL_SIOCGIFADDR if appropriate.
 
-* Nov 1 2008 (Daniel Stenberg)
-- Carlo Contavalli added support for the glibc "rotate" option, as documented
-  in man resolv.conf:
+- fix leftover from previous commit
 
-  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.
+- fix inet_pton() runtime configure check
 
-  You can enable it with ARES_OPT_ROTATE
+- trim down configure script size
 
-* Oct 21 2008 (Yang Tse)
-  Charles Hardin added handling of EINPROGRESS for UDP connects.
+Daniel Stenberg (15 Nov 2008)
+- Fixed an OOM condition reported by Jim Meyering
 
-* Oct 18 2008 (Daniel Stenberg)
-  Charles Hardin made adig support a regular numerical dotted IP address for the
+Yang Tse (14 Nov 2008)
+- fix typo affecting inclusion of <arpa/inet.h> in configure
+  checks for inet_ntoa_r() inet_ntop() and inet_pton()
+
+- #include <string.h> in the getaddrinfo() runtime check for the memset() prototype
+
+- fix symbol definition check for fcntl.h inclusion
+
+- Refactor configure script detection of functions used to set sockets into
+  non-blocking mode, and decouple function detection from function capability.
+
+Daniel Stenberg (1 Nov 2008)
+- Added a TODO file to list things we want changed, added or fixed.
+
+- - 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
+
+Yang Tse (1 Nov 2008)
+- Adjust WIN32 freeaddrinfo, getaddrinfo and getnameinfo availability
+
+- WIN32 availability of freeaddrinfo, getaddrinfo and getnameinfo functions is quite
+  convoluted, compiler dependant and in some cases even build target dependat.
+
+- check for freeaddrinfo() at configuration phase
+
+- update aclocal file serial number
+
+- remove verification of the freeability of the addrinfo struct pointer members
+
+- fix comment
+
+- make CHECK_FUNC_GETADDRINFO_UNFREEABLE_AI_ADDR
+   and CHECK_FUNC_GETADDRINFO_UNFREEABLE_AI_CANONNAME
+  internal to CHECK_FUNC_GETADDRINFO
+
+- fix leftover
+
+- Initial attempt to detect at configuration time if the getaddrinfo()
+  function returns an addrinfo with an unfreeable ai_canonname member ptr.
+
+- Initial attempt to detect at configuration time if the getaddrinfo()
+  function returns an addrinfo with an unfreeable ai_addr member ptr.
+
+- icc adjustments:
+  
+    Select ANSI C89 dialect plus GNU extensions, again.
+
+- some more temporary magic for the icc seg-fault issue
+
+- icc permanent adjustment:
+  
+    Select precise floating-point model, otherwise doubles are less than 64-bit wide
+  
+  icc test adjustment:
+  
+    Select c89 dialect
+
+- icc adjustments:
+  
+    Enable more icc warnings.
+  
+    Optimization disabling options used only for icc 9.1
+
+- #include <stdlib.h> for exit() prototype
+
+- some more temporary magic for the icc seg-fault issue
+
+- remove from configure.ac temporary magic for the icc seg-fault issue
+
+- some more temporary magic for the icc seg-fault issue
+
+- Charles Hardin patch:
+  
+  - handles the EINPROGRESS for UDP connects
+  - uses closesocket instead of close on some paths that were noticed
+
+- some more temporary magic for the icc seg-fault issue
+
+- messages initially intended only for debug purposes, now become permanent
+  since these are extremely useful when compiler rejects a set of options.
+
+- fix compiler warning
+
+- fix missing double-quotes
+
+Daniel Stenberg (17 Oct 2008)
+- Charles Hardin made adig support a regular numerical dotted IP address for the
   -s option as well.
 
-* Oct 7 2008 (Yang Tse)
-- Added --enable-optimize configure option to enable and disable compiler
-  optimizations to allow decoupled setting from --enable-debug.
+Yang Tse (16 Oct 2008)
+- some more temporary magic for the icc seg-fault issue
+
+- Ensure that shell variable contents which have active meaning
+  to the shell echo command are not interpreted when trying to
+  remove extra whitespace from shell variable content.
+
+- Adjust Watcom C warnings:
+  
+    Disable warnings on structure members padding.
+
+- With this change Solaris target builds will now be done with _REENTRANT defined.
+
+- Adjust Tiny C basic options:
+  
+    Remove -b from debug-enabled configuration, as Tiny C might have
+    been built without the memory and bounds checker support.
+
+- Adjust GCC warnings:
+  
+    Better disable following warnings when cross-compiling with a gcc older
+    than 3.0, to avoid warnings from third party system headers:
+  
+      -Wmissing-declarations
+      -Wmissing-prototypes
+      -Wunused
+      -Wshadow
+
+- fix syntax error
+
+- Initial attempt to detect Watcom C compiler
+
+- make naming scheme more consistent across whole file
+
+- Adjust GCC warnings:
+  
+    Disable following warnings when cross-compiling with a gcc older
+    than 3.0, to avoid warnings from third party system headers:
+  
+      -Wmissing-prototypes
+      -Wunused
+      -Wshadow
+
+- Adjust GCC --enable-warnings:
+  
+    Do not enable -pedantic when cross-compiling with a gcc older
+    than 3.0, to avoid warnings from third party system headers.
+
+- adjust SGI MIPSpro C detection
+
+- LCC compiler adjustments:
+  
+    Highest warning level is double -A, next is single -A.
+    Due to the big number of warnings these trigger on third
+    party header files it is impratical for us to use any of
+    them here. If you want them simply define it in CPPFLAGS.
+
+- remove extra space
+
+- split SGI compiler check. One for MIPS C and another for MIPSpro C
+
+- LCC compiler adjustments:
+  
+    Warning level reduced from double -A to single -A
+
+- Initial attempt to detect Tiny C compiler
+
+- Initial attempt to detect LCC compiler
+
+- 1) fix bug in CONVERT_INCLUDE_TO_ISYSTEM
+  
+  2) Disable SGI remark: controlling expression is constant
+
+- simplify SGI C compiler check
+
+- HP C adjustments:
+  
+    Due to the HP-UX socklen_t issue it is insane to use the +w1 warning level.
+    It generates more than 1100 warnings on socklen_t related statements.
+  
+    Until the issue is somehow fixed we will just use the +w2 warning level.
+
+- Add debug tracing for COMPILER_WORKS_IFELSE
+
+- configure will also warn on 'strict compiler warning' rejected options
+
+- convert rejected compiler options messages into a warnings
+
+- remove extra whitespace from string in SGI C check
+
+- oops
+
+- Initial attempt to detect SGI C compiler
+
+- HP C adjustments:
+  
+    Disallow run-time dereferencing of null pointers.
+  
+    Disable some remarks:
+  
+      #4227: padding struct with n bytes to align member.
+  
+      #4255: padding size of struct with n bytes to alignment boundary.
+
+- improve presentation of accepted/rejected debug/optimizer options
+
+- refactoring of COMPILER_BASIC_OPTS
+
+- Initial attempt to detect SUN C compiler
+
+- Initial attempt to detect HP C compiler
+
+- fix compiler warning: 'dot_4' may be used uninitialized in this function
+
+- adjust ICC_windows settings
+
+- fix VAR_STRIP
+
+- Sync up with reality
+
+- Initial attempt to support configure's --(dis|en)able-optimize
+  option to specify dis(activation) of compiler optimizations.
+  
+  If option is specified, it will be honored independant of the
+  --(dis|en)able-debug option.
+
+- fix comment
+
+- Initial attempt to support configure's --(dis|en)able-warnings
+  option to specify dis(activation) of picky compiler warnings.
+  
+  If option is specified, it will be honored independant of the
+  --(dis|en)able-debug option.
+  
+  If option is not specified, it will follow --(dis|en)able-debug
+  setting, whose default is disabled if not specified.
+
+- fix compiler warning: dereferencing type-punned pointer will break strict-aliasing rules
+
+- now compiler warnings are activated for all gcc builds, not only debug ones.
+
+- Use CFLAGS for icc linker options instead of LDFLAGS,
+  otherwise gethostbyname() is not detected.
+
+- use ac_cv_compiler and ac_cv_compiler_num to keep compiler ID and version number
+
+- Temporary icc adjustment:
+  
+    Disable floating point optimizations
+
+- HAVE_INET_PTON will only be defined when an IPv6 capable working
+  inet_pton function is available.
+
+- HAVE_INET_NTOP will only be defined when an IPv6 capable working
+  inet_ntop function is available.
+
+- ntoa() and inet_ntoa_r() no longer used
+
+- icc adjustments for icc 9.0 and prior versions:
+  
+    Disable remark #279: controlling expression is constant
+  
+        Remark triggered mostly on va_arg() and FD_ZERO() macros.
+
+- attempt to make work the gethostname function
+  check for winsock build target configurations
+
+Gisle Vanem (21 Sep 2008)
+- Added HAVE_NETDB_H, HAVE_ARPA_INET_H, HAVE_STRCASECMP
+  and HAVE_STRNCASECMP.
+
+Yang Tse (19 Sep 2008)
+- icc adjustments:
+  
+    Disable remark #981: operands are evaluated in unspecified order
+  
+        Function calls which are triggering this remark, today, do not depend
+        on the order of evaluation of its arguments.
+  
+    Disable remark #1469: "cc" clobber ignored
+  
+        Remark triggered on htons() and ntohs() due to glibc header files.
+
+- icc adjustments
+
+- fix netdb.h prerequisite inclusion
+
+- improve detection of getservbyport_r()
+
+- On Linux Intel's icc uses gcc's header files, so
+  we select ANSI C89 dialect plus GNU extensions.
+
+- improve detection of gethostname()
+
+- NetWare builds include "nameser.h" from the c-ares subdir
+
+- include <strings.h>
+
+- Sync up with reality
+
+- adjust inclusion of "nameser.h"
+
+- reorder some lines in file
+
+- code cleanup
 
-* Oct 2 2008 (Yang Tse)
-- Added --enable-warnings configure option to enable and disable strict
-  compiler warnings to allow decoupled setting from --enable-debug.
+- NetWare seems to have writev()
 
-* Sep 17 2008 (Yang Tse)
-- Code reorganization to allow internal/private use of "nameser.h" to any
-  system that lacks arpa/nameser.h or arpa/nameser_compat.h header files.
+- rearrange to allow internal/private use of ares_writev to any system
+  that lacks the writev function.
 
-* Sep 16 2008 (Yang Tse)
-- Code reorganization to allow internal/private use of ares_writev to any
-  system that lacks the writev function.
+- NetWare CLIB target has stricmp() and strnicmp()
 
-* Sep 15 2008 (Yang Tse)
-- Code reorganization to allow internal/private use of ares_strcasecmp to any
-  system that lacks the strcasecmp function.
+- include header file only when available
 
-- Improve configure detection of some string functions.
+- rearrange to allow internal/private use of ares_strcasecmp to any system that
+  lacks the strcasecmp function.
 
-* Sep 11 2008 (Yang Tse)
-- Code reorganization to allow internal/private use of ares_strdup to any
-  system that lacks the strdup function.
+- improve detection of:
+    strcasecmp()
+    strcmpi()
+    stricmp()
+    strncasecmp()
+    strncmpi()
+    strnicmp()
 
-Version 1.5.3 (Aug 29, 2008)
+- *** empty log message ***
 
-* Aug 25 2008 (Yang Tse)
-- Improvement by Brad House:
+Gisle Vanem (12 Sep 2008)
+- djgpp does have strdup().
 
-  This patch addresses an issue in which a response could be sent back to the
-  source port of a client from a different address than the request was made to.
-  This is one form of a DNS cache poisoning attack.
+Yang Tse (12 Sep 2008)
+- change CRLF into LF line endings
 
-  The patch simply uses recvfrom() rather than recv() and validates that the
-  address returned from recvfrom() matches the address of the server we have
-  connected to. Only necessary on UDP sockets as they are connection-less, TCP
-  is unaffected.
+- strdup() clone for systems/configurations which lack it
 
-- Fix by George Neill:
-  Fixed compilation of acountry sample application failure on some systems.
+- move inclusion of ares_private.h last
 
-* Aug 4 2008 (Daniel Stenberg)
-- Fix by Tofu Linden:
+- icc adjustments
 
-  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).
+- icc adjustments
 
-  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.
+- Select strict ANSI C89 conformance for icc
 
-  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.
+- remove unnecessary typecasting of malloc()
 
+- remove unnecessary typecasting of realloc()
 
-* Aug 4 2008 (Yang Tse)
+Daniel Stenberg (29 Aug 2008)
+- we start over working towards 1.5.4
+
+Version 1.5.3 (29 Aug 2008)
+
+Daniel Stenberg (29 Aug 2008)
+- Version 1.5.3
+
+- added the three people from RELEASE-NOTES and sorted the list alphabetically
+
+Yang Tse (27 Aug 2008)
+- Don't abort configuration if recvfrom() is not available.
+
+- Functionality only possible if recvfrom() is available.
+
+- George Neill's fix acountry sample application compilation failure.
+
+- Brad House's validation that DNS response address matches the request address
+
+- fix the output name
+
+- Get rid of ENABLE_64BIT symbol definition and usage.
+  
+  Improve HAVE_LONGLONG symbol description.
+
+- Export 'ares_process_fd' too.
+
+Gisle Vanem (16 Aug 2008)
+- Ops, remove 'use_vc'.
+
+- Support Watt-32 under Win32.
+
+Yang Tse (10 Aug 2008)
+- Fix: Remove now this SIZEOF_CURL_OFF_T symbol definition.
+  
+  This should have been done with the initial 64-bit curl_off_t patch.
+
+- Improve CURL_CHECK_DEF
+
+- Fix IBM C and DEC/Compaq C compiler detection
+
+- Initial support of curlbuild.h and curlrules.h which allows
+  to have a curl_off_t data type no longer gated to off_t.
+
+- The minimum autoconf version required for this file is 2.50
+  
+  Avoid dot notation in aclocal serial file number, use a single number now.
+
+Daniel Stenberg (4 Aug 2008)
+- - 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.
+
+Yang Tse (4 Aug 2008)
 - Autoconf 2.62 has changed the behaviour of the AC_AIX macro which we use.
-  Prior versions of autoconf defined _ALL_SOURCE if _AIX was defined. 2.62
-  version of AC_AIX defines _ALL_SOURCE and other four preprocessor symbols
-  no matter if the system is AIX or not. To keep the traditional behaviour,
-  and an uniform one across autoconf versions AC_AIX is replaced with our
-  own internal macro CARES_CHECK_AIX_ALL_SOURCE.
-
-* Aug 1 2008 (Yang Tse)
-- Configure process now checks if the preprocessor _REENTRANT symbol is already
-  defined. If it isn't currently defined a set of checks are performed to test
-  if its definition is required to make visible to the compiler a set of *_r
-  functions. Finally, if _REENTRANT is already defined or needed it takes care
-  of making adjustments necessary to ensure that it is defined equally for the
-  configure process tests and generated config file.
-
-* Jul 20 2008 (Yang Tse)
-- When recvfrom prototype uses a void pointer for arguments 2, 5 or 6 this will
-  now cause the definition, as appropriate, of RECVFROM_TYPE_ARG2_IS_VOID,
-  RECVFROM_TYPE_ARG5_IS_VOID or RECVFROM_TYPE_ARG6_IS_VOID.
-
-* Jul 17 2008 (Yang Tse)
-- RECVFROM_TYPE_ARG2, RECVFROM_TYPE_ARG5 and RECVFROM_TYPE_ARG6 are now defined
-  to the data type pointed by its respective argument and not the pointer type.
+  Prior versions of autoconf defined _ALL_SOURCE if _AIX was defined. But,
+  autoconf 2.62 version of AC_AIX defines _ALL_SOURCE along with other four
+  preprocessor symbols no matter if the system is AIX or not. To keep the
+  traditional behaviour, as well as an uniform one, across autoconf versions
+  AC_AIX is replaced with our own internal macro.
 
-* Jul 16 2008 (Yang Tse)
-- Improved configure detection of number of arguments for getservbyport_r.
-  Detection is now based on compilation checks instead of linker ones.
+- Adjust DEC/Compaq C compiler settings.
 
-- Configure process now checks availability of recvfrom() socket function and
-  finds out its return type and the types of its arguments. Added definitions
-  for non-configure systems config files, and introduced macro sreadfrom which
-  will be used on udp sockets as a recvfrom() wrapper in the future.
+- Another AC_TRY_LINK conversion to AC_LINK_IFELSE.
+  Proper definition of HAVE_function if function is found deeper.
 
-* Jul 15 2008 (Yang Tse)
-- Introduce definition of _REENTRANT symbol in setup.h to improve library
-  usability.  Previously the configure process only used the AC_SYS_LARGEFILE
-  macro for debug builds, now it is also used for non-debug ones enabling the
-  use of configure options --enable-largefile and --disable-largefile which
-  might be needed for library compatibility.  Remove checking the size of
-  curl_off_t, it is no longer needed.
+- Sync up with reality
 
-* Jul 3 2008 (Daniel Stenberg)
-- Phil Blundell: If you ask ares_gethostbyname() to do an AF_INET6 lookup and
-  the target host has only A records, it automatically falls back to an
-  AF_INET lookup and gives you the A results.  However, if the target host has
-  a CNAME record, this behaviour is defeated since the original query does
-  return some data even though ares_parse_aaa_reply() doesn't consider it
-  relevant. Here's a small patch to make it behave the same with and without
-  the CNAME.
+- Rename reentrant.m4 to avoid filename clash.
 
-* Jul 2 2008 (Yang Tse)
-- Fallback to gettimeofday when monotonic clock is unavailable at run-time.
+- Add file version serial number that might be used by 'aclocal' and others.
+  
+  Keep the '#' character as the first one on the line.
 
-* Jun 30 2008 (Daniel Stenberg)
+- Update copyright year.
 
-- 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.
+- Sync comment with reality.
 
-  I also fixed init_by_defaults() function to not leak memory in case if
-  error.
+- Reinstate the 'aclocal -I m4' in buildconf and 'ACLOCAL_AMFLAGS = -I m4' way of
+  including our local m4/reentrant.m4 file. This even takes care of including the
+  file in the distribution tarball.
 
-* Jun 9 2008 (Yang Tse)
+- Add quoting for the AC_DEFINE arguments.
 
-- Make libcares.pc generated file for pkg-config include information relative
-  to the libraries needed for the static linking of c-ares.
+- Also remove the whitespace.
 
-* May 30 2008 (Yang Tse)
+- Also remove the extra quoting.
 
-- Brad House fixed a missing header file inclusion in adig sample program.
+- Replace some '@%:@' quadigraphs by its actual representation '#'.
+  
+  This quadigraph used before a C preprocessor 'define' directive could
+  be fooling M4, when processing this file, and make it think that the
+  line contains a pure M4 'define' macro.
 
-Version 1.5.2 (May 29, 2008)
+- Tests done using 'aclocal -I m4' in buildconf and 'ACLOCAL_AMFLAGS = -I m4
+  in top Makefile.am triggered a problem that prevented aclocal from running
+  successfully on SunOS 5.10 with GNU m4 1.4.5 and GNU Autoconf 2.61
+  
+  A tarball which reproduces mentioned problem is the one dated July-28-2008
+  http://cool.haxx.se/curl-daily/curl-7.19.0-20080728.tar.gz
+  
+  We actually don't need all the bells and whistles that the above mechanism
+  provides. We only need to include our m4/reentrant.m4 file in acinclude.m4
+  so here we go with this simpler mechanism.
 
-* May 13 2008 (Daniel Stenberg)
+- for debugging purposes show ACLOCAL_FLAGS
 
-- Introducing millisecond resolution support for the timeout option. See
-  ares_init_options()'s ARES_OPT_TIMEOUTMS.
+- These lines were unintentionally removed in previous commit
 
-* May 9 2008 (Yang Tse)
+- Partially undo change that prevented SED, GREP, EGREP and AR from being changed by libtool or autoconf.
 
-- Use monotonic time source if available, for private function ares__tvnow()
+- Assert that SED and GREP are set
 
-* May 7 2008 (Daniel Stenberg)
+- Require autoconf 2.57 or newer
 
-- Sebastian made c-ares able to return all PTR-records when doing reverse
-  lookups. It is not common practice to have multiple PTR-Records for a single
-  IP, but its perfectly legal and some sites have those.
+- When calling aclocal, user defined ACLOCAL_FLAGS will now precede ours.
 
-- Doug Goldstein provided a configure patch: updates autoconf 2.13 usage to
-  autoconf 2.57 usage (which is the version you have specified as the minimum
-  version). It's a minor change but it does clean up some warnings with newer
-  autoconf (specifically 2.62).
+- move ACLOCAL_AMFLAGS after AUTOMAKE_OPTIONS
 
-* May 5 2008 (Yang Tse)
+- setup.h handles definition of _REENTRANT based on NEED_REENTRANT
+  definition which might be defined in config.h or config-*.h files
 
-- Improved parsing of resolver configuration files.
+- Remove explicit inclusion of our m4 files first. It was interesting as a test,
+  but it breaks aclocal execution on some systems, with the following error:
+  
+  Can't locate object method "rel2abs" via package "File::Spec" at /usr/local/bin/aclocal line 256.
 
-* April 4 2008 (Daniel Stenberg)
+- Another step towards detecting if _REENTRANT is already defined or actually
+  needed, and being able to define it if appropriate for further configure tests
+  as well as for the generated config file.
 
-- Eino Tuominen improved the code when a file is used to seed the randomizer.
+- Explicitly include our m4 files first. This might minimize the impact
+  that other package's underquoted m4 function definitions have on ours.
 
-- Alexey Simak made adig support NAPTR records
+- Add a 3 argument check for getprotobyname_r
 
-- Alexey Simak fixed the VC dsp file by adding the missing source file
-  ares_expand_string.c
+- move reentrant.m4 to the m4 subdirectory to avoid infinite loop inclusion problem
 
-* December 11 2007 (Gisle Vanem)
+- add checks for strtok_r and getprotobyname_r
 
-- Added another sample application; acountry.c which converts an
-  IPv4-address(es) and/or host-name(s) to country-name and country-code.
-  This uses the service of the DNSBL at countries.nerd.dk.
+- Another step towards detecting if _REENTRANT is already defined or actually
+  needed, and being able to define it if appropriate for further configure tests
+  as well as for the generated config file.
+  
+  Introduced reentrant.m4 intended for our reentrant related autotools/m4 macros.
 
-* December 3 2007 (Daniel Stenberg)
+- reorder argument number detection for getservbyport_r to
+  actually verify if the test is properly working
 
-- Brad Spencer fixed the configure script to assume that there's no
-  /dev/urandom when built cross-compiled as then the script cannot check for
-  it.
+- Make sure that configure process tests are done with the same _REENTRANT
+  setting as the one actually used when finally building the library.
 
-- Erik Kline cleaned up ares_gethostbyaddr.c:next_lookup() somewhat
+- Change recvfrom's sixth argument data type to the 'historically standard' 'int'
+  data type for systems where this sixth argument is prototyped as a void pointer.
+  
+  Start of thread: http://curl.haxx.se/mail/lib-2008-07/0153.html
 
-Version 1.5.1 (Nov 21, 2007)
+- use prototypes to improve getservbyport_r detection
 
-* November 21 2007 (Daniel Stenberg)
+- Adjust recvfrom's sixth arg data type definition for NetWare (LIBC)
 
-- Robin Cornelius pointed out that ares_llist.h was missing in the release
-  archive for 1.5.0
+- Use the sreadfrom() wrapper to replace recvfrom() in our code.
 
-Version 1.5.0 (Nov 21, 2007)
+- when recvfrom prototype uses a void pointer for arguments 2, 5 or 6 this will
+  now cause the definition of RECVFROM_TYPE_ARG2_IS_VOID, RECVFROM_TYPE_ARG5_IS_VOID
+  or RECVFROM_TYPE_ARG6_IS_VOID, as appropriate.
 
-* October 2 2007 (Daniel Stenberg)
+- Adjust DEC/Compaq C compiler settings
 
-- ares_strerror() segfaulted if the input error number was out of the currently
-  supported range.
+- Added "pointer to void" as another data type to check for the sixth argument of
+  function recvfrom as a result of the info additionally logged when running on a
+  Solaris system.
+  
+  The compiler error showed that the prototype being used on Solaris was the one
+  declared in line 427 of "/usr/include/sys/socket.h" as:
+  
+  function(int,
+           pointer to void,
+           unsigned int,
+           int,
+           pointer to struct sockaddr,
+           pointer to void) returning int
 
-- Yang Tse: Avoid a segfault when generating a DNS "Transaction ID" in
-  internal function init_id_key() under low memory conditions.
+- Adjust DEC/Compaq C compiler settings
 
-* September 28 2007 (Daniel Stenberg)
+- RECVFROM_TYPE_ARG2, RECVFROM_TYPE_ARG5 and RECVFROM_TYPE_ARG6 are now defined
+  to the data type pointed by its respective argument and not the pointer type.
 
-- Bumped version to 1.5.0 for next release and soname bumped to 2 due to ABI
-  and API changes in the progress callback (and possibly more coming up from
-  Steinar)
+- Configure process now checks availability of recvfrom() socket function and
+  finds out its return type and the types of its arguments. Added definitions
+  for non-configure systems config files, and introduced macro sreadfrom which
+  will be used on udp sockets as a recvfrom() wrapper.
 
-* September 28 2007 (Steinar H. Gunderson)
+- Initial DEC/Compaq C compiler detection and flags
 
-- Don't skip a server if it's the only one. (Bugfix from the Google tree.)
+- Improved configure detection of number of arguments for getservbyport_r
 
-- Made the query callbacks receive the number of timeouts that happened during
-  the execution of a query, and updated documentation accordingly. (Patch from
-  the Google tree.)
+- Allow --enable-largefile and --disable-largefile configurations.
+  Configure process no longer needs nor checks size of curl_off_t.
+  Library will now be built with _REENTRANT symbol defined.
 
-- Support a few more socket options: ARES_OPT_SOCK_SNDBUF and
-  ARES_OPT_SOCK_RCVBUF
+- fix compiler warning
 
-- Always register for TCP events even if there are no outstanding queries, as
-  the other side could always close the connection, which is a valid event
-  which should be responded to.
+- since Jun 30 2008 MAXHOSTNAMELEN define is no longer used
 
-* September 22 2007 (Daniel Stenberg)
+- fix c-ares version reported in generated libcares.pc file when building
+  from CVS tree.
 
-- Steinar H. Gunderson fixed: Correctly clear sockets from the fd_set on in
-  several functions (write_tcp_data, read_tcp_data, read_udp_packets) so that
-  if it fails and the socket is closed the following code doesn't try to use
-  the file descriptor.
+- egrep and ar are also mandatory
 
-- Steinar H. Gunderson modified c-ares to now also do to DNS retries even when
-  TCP is used since there are several edge cases where it still makes sense.
+Daniel Stenberg (3 Jul 2008)
+- just to clarify that c-ares actually have some ipv6 support
 
-- Brad House provided a fix for ares_save_options():
+- ares_gethostbyname() fallback from AAA to A records with CNAME present
 
-  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.
+- - Phil Blundell: If you ask ares_gethostbyname() to do an AF_INET6 lookup and
+    the target host has only A records, it automatically falls back to an
+    AF_INET lookup and gives you the A results.  However, if the target host has
+    a CNAME record, this behaviour is defeated since the original query does
+    return some data even though ares_parse_aaa_reply() doesn't consider it
+    relevant. Here's a small patch to make it behave the same with and without
+    the CNAME.
 
-* July 14 2007 (Daniel Stenberg)
+Yang Tse (2 Jul 2008)
+- The configure process will now halt when sed or grep are unavailable
 
-- Vlad Dinulescu fixed two outstanding valgrind reports:
+- fallback to gettimeofday when monotonic clock is unavailable at run-time
 
-  1. In ares_query.c , in find_query_by_id we compare q->qid (which is a short
-  int variable) with qid, which is declared as an int variable.  Moreover,
-  DNS_HEADER_SET_QID is used to set the value of qid, but DNS_HEADER_SET_QID
-  sets only the first two bytes of qid. I think that qid should be declared as
-  "unsigned short" in this function.
+- IBM C/C++ compiler predefined macro check
 
-  2. The same problem occurs in ares_process.c, process_answer() .  query->qid
-  (an unsigned short integer variable) is compared with id, which is an
-  integer variable. Moreover, id is initialized from DNS_HEADER_QID which sets
-  only the first two bytes of id. I think that the id variable should be
-  declared as "unsigned short" in this function.
+- set earlier in configure process IBM compilers optimization flags
 
-  Even after declaring these variables as "unsigned short", the valgrind
-  errors are still there. Which brings us to the third problem.
+- make check message wording more precise
 
-  3. The third problem is that Valgrind assumes that query->qid is not
-  initialised correctly. And it does that because query->qid is set from
-  DNS_HEADER_QID(qbuf); Valgrind says that qbuf has unitialised bytes. And
-  qbuf has uninitialised bytes because of channel->next_id . And next_id is
-  set by ares_init.c:ares__generate_new_id() . I found that putting short r=0
-  in this function (instead of short r) makes all Valgrind warnings go away.
-  I have studied ares__rc4() too, and this is the offending line:
+Daniel Stenberg (30 Jun 2008)
+- - 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.
 
-        buffer_ptr[counter] ^= state[xorIndex];   (ares_query.c:62)
+Yang Tse (29 Jun 2008)
+- fix C style comment
 
-  This is what triggers Valgrind.. buffer_ptr is unitialised in this function,
-  and by applying ^= on it, it remains unitialised.
+- John Lightsey filed bug report #1999181: "CLOCK_MONOTONIC always fails on
+  some systems" (http://curl.haxx.se/bug/view.cgi?id=1999181). The problem was
+  that the configure script did not use the _POSIX_MONOTONIC_CLOCK feature test
+  macro when checking monotonic clock availability. This is now fixed and the
+  monotonic clock will not be used unless the feature test macro is defined
+  with a value greater than zero indicating always supported.
 
-Version 1.4.0 (June 8, 2007)
+- Modified configuration script to actually verify if the compiler is good
+  enough at detecting compilation errors or at least it has been properly
+  configured to do so. Configuration heavily depends on this capability, so
+  if this compiler sanity check fails the configuration process will now fail.
 
-* June 4 2007 (Daniel Stenberg)
+- No longer break out of a shell "for" statement from inside
+  AC_FOO_IFELSE macros, otherwise temp files are not removed.
+  
+  Identation adjustment.
 
-- James Bursa reported a major memory problem when resolving multi-IP names
-  and I found and fixed the problem. It was added by Ashish Sharma's patch
-  two days ago.
+Gunter Knauf (11 Jun 2008)
+- enable additional CFLAGS from commandline.
 
-  When I then tried to verify multiple entries in /etc/hosts after my fix, I
-  got another segfault and decided this code was not ripe for inclusion and I
-  reverted the patch.
+Yang Tse (9 Jun 2008)
+- fix pkg-config reporting of private libraries needed for static linking
 
-* June 2 2007
+- MSVC does build Windows native targets
 
-- Brad Spencer found and fixed three flaws in the code, found with the new
-  gcc 4.2.0 warning: -Waddress
+- Brad House fixed a missing header file inclusion in adig sample program
 
-- Brad House fixed VS2005 compiler warnings due to time_t being 64bit.
-  He also made recent Microsoft compilers use _strdup() instead of strdup().
+Daniel Stenberg (29 May 2008)
+- start working on 1.5.3
 
-- Brad House's man pages for ares_save_options() and ares_destroy_options()
-  were added.
+Version 1.5.2 (29 May 2008)
 
-- Ashish Sharma provided a patch for supporting multiple entries in the
-  /etc/hosts file. Patch edited for coding style and functionality by me
-  (Daniel).
+Daniel Stenberg (29 May 2008)
+- 1.5.2
+
+Yang Tse (26 May 2008)
+- fix compiler warning: unreferenced formal parameter
+
+Daniel Stenberg (23 May 2008)
+- list all local sources the (demo) tools need, add a few missing scripts to
+  the dist tarball and remove a two duplicate file names from EXTRA_DIST
+  (most of it pointed out by Yang Tse)
+
+- this is not used (anymore)
+
+- make sure the configure.ac file with the correct version number is shipped
+  in the tarball
 
-* May 30 2007
+Yang Tse (22 May 2008)
+- MSVC6+ clean-up targets must also remove acountry.exe
 
-- Shmulik Regev brought cryptographically secure transaction IDs:
+- sync with reality
 
-  The c-ares library implementation uses a DNS "Transaction ID" field that is
-  seeded with a pseudo random number (based on gettimeofday) which is
-  incremented (++) between consecutive calls and is therefore rather
-  predictable. In general, predictability of DNS Transaction ID is a well
-  known security problem (e.g.
-  http://bak.spc.org/dms/archive/dns_id_attack.txt) and makes a c-ares based
-  implementation vulnerable to DNS poisoning. Credit goes to Amit Klein
-  (Trusteer) for identifying this problem.
+- fix: [action-if-found] part of AC_CHECK_TYPE macro cannot be quoted when empty
 
-  The patch I wrote changes the implementation to use a more secure way of
-  generating unique IDs. It starts by obtaining a key with reasonable entropy
-  which is used with an RC4 stream to generate the cryptographically secure
-  transaction IDs.
+- fix: remove need and definition of HAVE_SOCKLEN_T symbol
 
-  Note that the key generation code (in ares_init:randomize_key) has two
-  versions, the Windows specific one uses a cryptographically safe function
-  provided (but undocumented :) by the operating system (described at
-  http://blogs.msdn.com/michael_howard/archive/2005/01/14/353379.aspx).  The
-  default implementation is a bit naive and uses the standard 'rand'
-  function. Surely a better way to generate random keys exists for other
-  platforms.
+- fix: socklen_t definition comment
 
-  The patch can be tested by using the adig utility and using the '-s' option.
+- update several macros using AC_TRY_LINK with AC_LINK_IFELSE
 
-- 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.
+- fix underquoting of AC_LANG_PROGRAM arguments
 
-  Problem: Calling ares_init() for each lookup can be unnecessarily resource
-         intensive.  On windows, it must LoadLibrary() or search the registry
-         on each call to ares_init().  On unix, it must read and parse
-         multiple files to obtain the necessary configuration information.  In
-         a single-threaded environment, it would make sense to only
-         ares_init() once, but in a heavily multi-threaded environment, it is
-         undesirable to ares_init() and ares_destroy() for each thread created
-         and track that.
+- if'def out private function ares__tvdiff(), it is not in use yet.
 
-  Solution: Create ares_save_options() and ares_destroy_options() functions to
-         retrieve and free options obtained from an initialized channel.  The
-         options populated can be used to pass back into ares_init_options(),
-         it should populate all needed fields and not retrieve any information
-         from the system.  Probably wise to destroy the cache every minute or
-         so to prevent the data from becoming stale.
+- update several macros using AC_TRY_LINK with AC_LINK_IFELSE
 
-- Daniel S added ares_process_fd() to allow applications to ask for processing
-  on specific sockets and thus avoiding select() and associated
-  functions/macros.  This function will be used by upcoming libcurl releases
-  for this very reason. It also made me export the ares_socket_t type in the
-  public ares.h header file, since ares_process_fd() uses that type for two of
-  the arguments.
+- fix socklen_t equivalent detection when cross compiling Windows target
 
-* May 25 2007
+- if WINSOCK2 API is used link with 'ws2_32', else
+  
+  if WINSOCK API is used under WinCE link with 'winsock', else
+  
+  if WINSOCK API is used link with 'wsock32'.
 
-- Ravi Pratap fixed a flaw in the init_by_resolv_conf() function for windows
-  that could cause it to return a bad return code.
+- on winsock systems linking is done using library 'ws2_32' when
+  winsock2.h is available, and library 'winsock' is used when only
+  winsock.h is available.
 
-* April 16 2007
+- minor change for wince-cegcc and wince-mingw32ce support
 
-- Yang Tse: Provide ares_getopt() command-line parser function as a source
-  code helper function, not belonging to the actual c-ares library.
+- millisecond resolution support followup
 
-* February 19 2007
+Gisle Vanem (15 May 2008)
+- Replaced "-DHAVE_FIONBIO" with "-DHAVE_IOCTLSOCKET".
+  Added "-DHAVE_GETTIMEOFDAY". Trimmed lines.
 
-- Vlad Dinulescu added ares_parse_ns_reply().
+Yang Tse (15 May 2008)
+- sync with reality
 
-* February 13 2007
+- remove compilation time generated files
 
-- Yang Tse: Fix failure 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.
+- use same time source for timeout initialization and processing
 
-* November 22 2006
+- Improve toolchain detection for WinCE cross compilation:
+  
+  When cross compiling WinCE with the arm-wince-cegcc-gcc C compiler
+  symbol __CEGCC__ is defined and the unix-like compatibility layer
+  is used. For our purposes this is not a native Windows build.
+  
+  When cross compiling WinCE with the arm-wince-mingw32ce-gcc C compiler
+  symbol __MINGW32CE__ is defined and the unix-like compatibility layer
+  is not used. For our purposes this _is_ a native Windows build.
 
-- Install ares_dns.h too
+- skip checks for Windows specific header files
+  when build target is not a native Windows one
 
-- 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.
+- WinCE cross compilation adjustments:
+  
+  HAVE_WINSOCK2_H shall not be defined.
+  HAVE_WS2TCPIP_H shall not be defined.
 
-* November 6 2006
+Daniel Stenberg (13 May 2008)
+- - Introducing millisecond resolution support for the timeout option. See
+    ares_init_options()'s ARES_OPT_TIMEOUTMS.
 
-- Yang Tse removed a couple of potential zero size memory allocations.
+Yang Tse (13 May 2008)
+- also ignore this
 
-- Andreas Rieke fixed the line endings in the areslib.dsp file that I (Daniel)
-  broke in the 1.3.2 release. We should switch to a system where that file is
-  auto-generated. We could rip some code for that from curl...
+- also ignore this
 
-Version 1.3.2 (November 3, 2006)
+- ignore this compilation time generated files
 
-* October 12 2006
+- don't keep in CVS this compilation time generated file
 
-- Prevent ares_getsock() to overflow if more than 16 sockets are used.
+- add MSVC6 project for acountry sample program
 
-* September 11 2006
+- update MSVC6 projects to use the multithreaded DLL runtime library
 
-- 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.
+- add MSVC6 project for acountry sample program
 
-* August 29 2006
+- skip libtool C++ preprocessor compiler and linker checks
 
-- Brad Spencer did
+- ignore libcares.pc
 
-  o made ares_version.h use extern "C" for c++ compilers
-  o fixed compiler warnings in ares_getnameinfo.c
-  o fixed a buffer position init for TCP reads
+- configure script will now define HAVE_CLOCK_GETTIME_MONOTONIC symbol only
+  when function clock_gettime() is available and the monotonic timer is
+  also available. Otherwise, in some cases, librt or libposix4 could be used
+  for linking even when finally not using the clock_gettime() function due
+  to lack of the monotonic clock.
 
-* August 3 2006
+- fix syntax error: missing semicolon
 
-- Ravi Pratap fixed ares_getsock() to actually return the proper bitmap and
-  not always zero!
+- Add library checking for clock_gettime() support
 
-Version 1.3.1 (June 24, 2006)
+- Use monotonic time source if available.
 
-* July 23, 2006
+Daniel Stenberg (9 May 2008)
+- Removed AC_PROG_CC_STDC again. It enforces C99/gnu99 stdandard which is too
+  liberal for me. Also, autoconf 2.61 and earlier doesn't work with icc 10.1
+  for this macro. (2.62 confirmed to work though). See discusson on the mailing
+  list starting here:
+  
+  http://daniel.haxx.se/projects/c-ares/mail/c-ares-archive-2008-05/0001.shtml
 
-- Gisle Vanem added getopt() to the ahost program. Currently accepts
-  only [-t {a|aaaa}] to specify address family in ares_gethostbyname().
+- include strings.h (if available) for the strcasecmp() proto
 
-* June 19, 2006
+- check for strings.h in configure and use it for the strcasecmp() proto
 
-- (wahern) Removed "big endian" DNS section and RR data integer parser
-  macros from ares_dns.h, which break c-ares on my Sparc64. Bit-wise
-  operations in C operate on logical values. And in any event the octets are
-  already in big-endian (aka network) byte order so they're being reversed
-  (thus the source of the breakage).
+- adjusted to work with the updated configure.ac
+
+- - Sebastian made c-ares able to return all PTR-records when doing reverse
+    lookups. It is not common practice to have multiple PTR-Records for a single
+    IP, but its perfectly legal and some sites have those.
+
+- - Doug Goldstein provided a configure patch: updates autoconf 2.13 usage to
+    autoconf 2.57 usage (which is the version you have specified as the minimum
+    version). It's a minor change but it does clean up some warnings with newer
+    autoconf (specifically 2.62).
+
+Yang Tse (5 May 2008)
+- Improved parsing of resolver configuration files
+
+- make previous compiler warning fix more portable
+
+- fix compiler warning: indirection to slightly different base types
+
+- fix compiler warning: local variable may be used without having been initialized
+
+- fix compiler warning: unreferenced formal parameter
+
+- fix compiler warning: assignment within conditional expression
+
+Daniel Stenberg (4 Apr 2008)
+- - Alexey Simak fixed the VC dsp file by adding the missing source file
+    ares_expand_string.c
+
+- Alexey Simak made adig support NAPTR records
 
-* June 18, 2006
+- Eino Tuominen improved the code when a file is used to seed the randomizer
 
-- William Ahern handles EAGAIN/EWOULDBLOCK errors in most of the I/O calls
-  from area_process.c.
+Yang Tse (29 Feb 2008)
+- Force AIX xlc to fail and not generate object code if the source code has
+  compiled with errors. This behaviour is needed for autoconf macros which
+  rely on the ability to compile with or without errors, and is safer than
+  xlc's default of failing only upon severe errors.
 
-  TODO: Handle one last EAGAIN for a UDP socket send(2) in
-  ares__send_query().
+Gunter Knauf (27 Feb 2008)
+- added get_ver.awk since c-ares is a standalone project, and should therefore also compile when cURL is absent.
 
-* May 10, 2006
+- a couple of small fixes to the makefile:
+  fixed comments; fixed INSTDIR define, simplified rules;
+  changed to use get_ver.awk in current dir rather than the curl one.
 
-- Bram Matthys brought my attention to a libtool peculiarity where detecting
-  things such as C++ compiler actually is a bad thing and since we don't need
-  that detection I added a work-around, much inspired by a previous patch by
-  Paolo Bonzini. This also shortens the configure script quite a lot.
+- fixed linker def file for tools when compiled with gcc/nlmconv.
 
-* May 3, 2006
+- added some files which were missing in release tarballs.
 
-- 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.
+- updated copyright for new year.
 
-* January 9, 2006
+Gisle Vanem (2 Jan 2008)
+- Added '-d' option for Watt-32 debugging.
 
-- Alexander Lazic improved the getservbyport_r() configure check.
+Yang Tse (18 Dec 2007)
+- MSVC 9.0 (VS2008) does not support Windows build targets prior to WinXP,
+  and makes wrong asumptions of build target when it isn't specified. So,
+  if no build target has been defined we will target WinXP when building
+  with MSVC 9.0 (VS2008).
 
-* January 6, 2006
+Daniel Stenberg (11 Dec 2007)
+- build acountry too
 
-- Alexander Lazic pointed out that the buildconf should use the ACLOCAL_FLAGS
-  variable for easier controlling what it does and how it runs.
+Gisle Vanem (11 Dec 2007)
+- Added acountry.c.
 
-* January 5, 2006
+- Added build of acountry.nlm.
 
-- James Bursa fixed c-ares to find the hosts file on RISC OS, and made it
-  build with newer gcc versions that no longer defines "riscos".
+- Added build of acountry.exe.
 
-* December 22
+- Build acountry.exe. Added 'socklen_t' define.
 
-- Daniel Stenberg added ares_getsock() that extracts the set of sockets to
-  wait for action on. Similar to ares_fds() but not restricted to using
-  select() for the waiting.
+- Another sample application that returns country-code and
+  name from an IPv4-address or host-name. Using the service of
+  countries.nerd.dk.
 
-* November 25
+Daniel Stenberg (10 Dec 2007)
+- grrr, the previous commit was meant to properly make sure that we don't
+  link any executables when doing debug builds since they kind of assume
+  symbols provided by libcurl, but it also wrongly included acountry.c
 
-- Yang Tse fixed some send() / recv() compiler warnings
+- when building
 
-* September 18
+- build ahost and adig by default but don't install them
 
-- Added constants that will be used by ares_getaddrinfo
+Gisle Vanem (10 Dec 2007)
+- Fix for targets that do have 'struct in6_addr', but which doesn't
+  define 's6_addr' as a macro.
 
-- Made ares_getnameinfo use the reentrant getservbyport (getservbyport_r) if it
-  is available to ensure it works properly in a threaded environment.
+Yang Tse (3 Dec 2007)
+- Fix three issues previous cleanup introduces.
 
-* September 10
+Daniel Stenberg (3 Dec 2007)
+-  Erik Kline cleaned up ares_gethostbyaddr.c:next_lookup() somewhat
 
-- configure fix for detecting a member in the sockaddr_in6 struct which failed
-  on ipv6-enabled HP-UX 11.00
+- Brad Spencer fixed the configure script to assume that there's no
+  /dev/urandom when built cross-compiled as then the script cannot check for
+  it.
 
-Version 1.3.0 (August 29, 2005)
+- the gethostbyname fix applied here as well
 
-* August 21
+- fix next_lookup() to continue searching even if c-ares failed to load the
+  /etc/hosts file, pointed out by Erik Kline:
+  http://daniel.haxx.se/projects/c-ares/mail/c-ares-archive-2007-11/0027.shtml
 
-- Alfredo Tupone provided a fix for the Windows code in get_iphlpapi_dns_info()
-  when getting the DNS server etc.
+- Remove the check for libdl since that isn't actually used and it causes
+  warnings. Pointed out by Robin Cornelius.
 
-* June 19
+- pkgconfig fix by Andreas Schuldei
 
-- Added some checks for the addrinfo structure.
+- spellfix
 
-* June 2
+- and we start on 1.5.2!
 
-- William Ahern:
+Version 1.5.1 (21 Nov 2007)
 
-  Make UDP sockets non-blocking. I've confirmed that at least on Linux 2.4 a
-  read event can come back from poll() on a valid SOCK_DGRAM socket but
-  recv(2) will still block. This patch doesn't ignore EAGAIN in
-  read_udp_packets(), though maybe it should. (This patch was edited by Daniel
-  Stenberg and a new configure test was added (imported from curl's configure)
-  to properly detect what non-blocking socket approach to use.)
+Daniel Stenberg (21 Nov 2007)
+- change
 
-  I'm not quite sure how this was happening, but I've been seeing PTR queries
-  which seem to return empty responses. At least, they were empty when calling
-  ares_expand_name() on the record. Here's a patch which guarantees to
-  NUL-terminate the expanded name. The old behavior failed to NUL-terminate if
-  len was 0, and this was causing strlen() to run past the end of the buffer
-  after calling ares_expand_name() and getting ARES_SUCCESS as the return
-  value. If q is not greater than *s then it's equal and *s is always
-  allocated with at least one byte.
+- oops
 
-* May 16
+- start working on 1.5.1 now
 
-- Added ares_getnameinfo which mimics the getnameinfo API (another feature
-  that could use testing).
+Version 1.5.0 (21 Nov 2007)
 
-* May 14
+Daniel Stenberg (21 Nov 2007)
+- this is what 1.5.0 is
 
-- Added an inet_ntop function from BIND for systems that do not have it.
+- fill in missing copyrights
 
-* April 9
+Gunter Knauf (18 Nov 2007)
+- removed now obsolete defines;
+  updated external library versions to latest.
 
-- Made sortlist support IPv6 (this can probably use some testing).
+Steinar H. Gunderson (16 Nov 2007)
+- Fix a double free.
 
-- Made sortlist support CIDR matching for IPv4.
+Yang Tse (15 Nov 2007)
+- Needed now that in6_addr is referenced in ares.h
 
-* April 8
+Steinar H. Gunderson (15 Nov 2007)
+- When looking up in DNS and then in the hosts file, return the error code from DNS if both fail, instead of returning the error code from the hosts file, as today. Patch from the Google tree.
 
-- Added preliminary IPv6 support to ares_gethostbyname. Currently, sortlist
-  does not work with IPv6. Also provided an implementation of bitncmp from
-  BIND for systems that do not supply this function. This will be used to add
-  IPv6 support to sortlist.
+- Return TTL data from ares_parse_{a,aaaa}_reply, if the user is so inclined. Patch from the Google tree.
 
-- Made ares_gethostbyaddr support IPv6 by specifying AF_INET6 as the family.
-  The function can lookup IPv6 addresses both from files (/etc/hosts) and
-  DNS lookups.
+Yang Tse (8 Nov 2007)
+- Define WIN32 when build target is Win32 API.
+  This also defines it for WinCE even though it is a subset of WIN32.
 
-* April 7
+- The only libraries actually needed for sample programs adig and
+  ahost are ws2_32.lib and advapi32.lib
 
-- Tupone Alfredo fixed includes of arpa/nameser_compat.h to build fine on Mac
-  OS X.
+- MSVC versions prior to VS2005 do not complain about portable C functions
 
-* April 5
+- Windows build targets have socklen_t definition in ws2tcpip.h but some
+  versions of ws2tcpip.h do not have the definition. It seems that when
+  the socklen_t definition is missing from ws2tcpip.h the definition for
+  INET_ADDRSTRLEN is also missing, and that when one definition is present
+  the other one also is available.
 
-- Dominick Meglio: Provided implementations of inet_net_pton and inet_pton
-  from BIND for systems that do not include these functions.
+Gunter Knauf (22 Oct 2007)
+- removed dependency on gettimeofday() since we use only 1 sec resolution here.
 
-* March 11, 2005
+Yang Tse (20 Oct 2007)
+- Fix compiler warning: conversion from "int" to "unsigned short" may lose significant bits
 
-- Dominick Meglio added ares_parse_aaaa_reply.c and did various
-  adjustments. The first little steps towards IPv6 support!
+- Fix message shown when detecting icc version
 
-* November 7
+- Avoid shadowing a global declaration
 
-- Fixed the VC project and makefile to use ares_cancel and ares_version
+- Renamed a variable to avoid shadowing a global declaration
 
-* October 24
+- Renamed internal function to avoid a variable shadowing it
 
-- The released ares_version.h from 1.2.1 says 1.2.0 due to a maketgz flaw.
-  This is now fixed.
+- Fix compiler warning: feupdateenv is not implemented and will always fail.
+  Specifically for linux x86-64 with Intel's icc.
 
-Version 1.2.1 (October 20, 2004)
+- Sync PLATFORM_AIX_V3 detection and CURL_CC_DEBUG_OPTS()
+  icc warning level with libcurl's
 
-* September 29
+- Fix compiler warning: conversion from "int" to "unsigned char"
+  may lose significant bits
 
-- Henrik Stoerner fix: got a report that Tru64 Unix (the unix from Digital
-  when they made Alpha's) uses /etc/svc.conf for the purpose fixed below for
-  other OSes. He made c-ares check for and understand it if present.
+- actually sync with lib/setup_once.h
 
-- Now c-ares will use local host name lookup _before_ DNS resolving by default
-  if nothing else is told.
+- sync with lib/setup_once.h
 
-* September 26
+Steinar H. Gunderson (16 Oct 2007)
+- Fix a bug where fallback from AF_INET6 to AF_INET would not work properly together with relative search; if you had a search path of .a.com and .b.com, and foo.a.com would return ARES_ENODATA and foo.b.com would return ARES_ENOTFOUND, the lookup would not properly retry with AF_INET as it forgot the first ARES_ENODATA.
 
-- Henrik Stoerner: found out that c-ares does not look at the /etc/host.conf
-  file to determine the sequence in which to search /etc/hosts and DNS.  So on
-  systems where this order is defined by /etc/host.conf instead of a "lookup"
-  entry in /etc/resolv.conf, c-ares will always default to looking in DNS
-  first, and /etc/hosts second.
+Dan Fandrich (15 Oct 2007)
+- Mention first version with CURLOPT_COPYPOSTFIELDS.
+  Don't confuse NUL with NULL.
 
-  c-ares now looks at
+Gisle Vanem (8 Oct 2007)
+- Added needed 'HAVE_*' defines.
 
-  1) resolv.conf (for the "lookup" line);
-  2) nsswitch.fon (for the "hosts:" line);
-  3) host.conf (for the "order" line).
+- 'FD_CLOXEC' is meaningless on MSDOS/Watt-32.
 
-  First match wins.
+Steinar H. Gunderson (4 Oct 2007)
+- Removed a piece of redundant code (process_answer already takes care of it).
 
-- Dominick Meglio patched: C-ares on Windows assumed that the HOSTS file is
-  located in a static location. It assumed
-  C:\Windows\System32\Drivers\Etc. This is a poor assumption to make. In fact,
-  the location of the HOSTS file can be changed via a registry setting.
+- Another timeout fix in ares_getnameinfo().
 
-  There is a key called DatabasePath which specifies the path to the HOSTS
-  file:
-  http://www.microsoft.com/technet/itsolutions/network/deploy/depovg/tcpip2k.mspx
+- Send the timeout count in ares_getnameinfo().
 
-  The patch will make c-ares correctly consult the registry for the location
-  of this file.
+- Moved the NULL check for channel upwards in ares_destroy().
 
-* August 29
+- Clarified the comment over ares_cancel.
 
-- Gisle Vanem fixed the MSVC build files.
+Yang Tse (2 Oct 2007)
+- Avoid a segfault when generating a DNS "Transaction ID" in internal
+  function init_id_key() under low memory conditions.
 
-* August 20
+- Add ares_llist.c and ares_llist.h to MSCV project file.
 
-- Gisle Vanem made c-ares build and work with his Watt-32 TCP/IP stack.
+Daniel Stenberg (2 Oct 2007)
+- Fixed the problem where next_lookup would use 'status' uninitialized. Now
+  it gets passed the initial value as an argument.
 
-* August 13
+Yang Tse (2 Oct 2007)
+- Avoid inline C99ism, and move c-ares routines for managing doubly-linked lists.
 
-- Harshal Pradhan made a minor syntax change in ares_init.c to make it build
-  fine with MSVC 7.1
+Daniel Stenberg (1 Oct 2007)
+- ares_strerror() segfaulted if the input error number was out of the currently
+  supported range.
 
-* July 24
+- Prevent ares_strerror() from segfaulting if an invalid error code is passed
+  in as argument!
 
-- Made the lib get built static only if --enable-debug is used.
+Yang Tse (30 Sep 2007)
+- Fix compiler warning
 
-- Gisle Vanem fixed:
+- check availability of <netinet/tcp.h>
 
-  Basically in loops like handle_errors(), 'query->next' was assigned a local
-  variable and then query was referenced after the memory was freed by
-  next_server(). I've changed that so next_server() and end_query() returns
-  the next query. So callers should use this ret-value.
+- improve portability, defining MAXDNAME and MAXCDNAME
 
-  The next problem was that 'server->tcp_buffer_pos' had a random value at
-  entry to 1st recv() (luckily causing Winsock to return ENOBUFS).
+Steinar H. Gunderson (30 Sep 2007)
+- Fix a memory leak that I recently inadvertedly introduced.
 
-  I've also added a ares_writev() for Windows to streamline the code a bit
-  more.
+- Use ISDIGIT instead of isdigit; fixes a gcc warning.
 
-* July 20
-- Fixed a few variable return types for some system calls. Made configure
-  check for ssize_t to make it possible to use that when receiving the send()
-  error code. This is necessary to prevent compiler warnings on some systems.
+- Port the TCP socket fix made in ares_fds() to ares_getsock() as well.
 
-- Made configure create config.h, and all source files now include setup.h that
-  might include the proper config.h (or a handicrafted alternative).
+- 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.
 
-- Switched to 'ares_socket_t' type for sockets in ares, since Windows don't
-  use 'int' for that.
+Gisle Vanem (29 Sep 2007)
+- We should standarise on C comments.
 
-- automake-ified and libool-ified c-ares. Now it builds libcares as a shared
-  lib on most platforms if wanted. (This bloated the size of the release
-  archive with another 200K!)
+- Fix compiler warning in setsockopt().
 
-- Makefile.am now uses Makefile.inc for the c sources, h headers and man
-  pages, to make it easier for other makefiles to use the exact same set of
-  files.
+Steinar H. Gunderson (29 Sep 2007)
+- TCP queries can time out too, not just UDP queries. (Patch from the Google tree.)
 
-- Adjusted 'maketgz' to use the new automake magic when building distribution
-  archives.
+- Read and process as many packets as possible in read_udp_packets, to avoid having to run the entire event loop once per packet. (Patch from the Google tree.)
 
-- Anyone desires HTML and/or PDF versions of the man pages in the release
-  archives?
+- There are two different places in write_tcp_data() that advance the send_queue; however, they are slightly different and only the first one properly uses a while loop. Consolidate both into a single function that DTTR. (Patch from the Google tree.)
 
-* July 3
-- Günter Knauf made c-ares build and run on Novell Netware.
+- Reject names that are longer than 255 characters, to avoid problems with strict or buggy DNS server implementations. (Patch from the Google tree)
 
-* July 1
-- Gisle Vanem provided Makefile.dj to build with djgpp, added a few more djgpp
-  fixes and made ares not use 'errno' to provide further info on Windows.
+- In ares_mkquery, make sure we set buflen and buf to reasonable values if there's an error. (Patch from the Google tree)
 
-* June 30
-- Gisle Vanem made it build with djgpp and run fine with the Watt-32 stack.
+- Be stricter about what's a valid IP address in fake_hostent. (Patch from the Google tree.)
 
-* June 10
-- Gisle Vanem's init patch for Windows:
+- Handle the root of the DNS tree correctly in ares_expand_name.
 
-  The init_by_resolv_conf() function fetches the DNS-server(s)
-  from a series of registry branches.
+Daniel Stenberg (28 Sep 2007)
+- today's modifications by Steinar and me
 
-  This can be wrong in the case where DHCP has assigned nameservers, but the
-  user has overridden these servers with other prefered settings. Then it's
-  wrong to use the DHCPNAMESERVER setting in registry.
+- Bumped version to 1.5.0 for next release and soname bumped to 2 due to ABI
+  and API changes in the progress callback (and possibly more coming up from
+  Steinar)
 
-  In the case of no global DHCP-assigned or fixed servers, but DNS server(s)
-  per adapter, one has to query the adapter branches.  But how can c-ares know
-  which adapter is valid for use? AFAICS it can't. There could be one adapter
-  that is down (e.g. a VPN adapter).
+Steinar H. Gunderson (28 Sep 2007)
+- Unrevert previous 'missing' hunks. They were missing since the patch is still in for review :-)
 
-  So it's better to leave this to the IP Helper API (iphlapi) available in
-  Win-98/2000 and later. My patch falls-back to the old way if not available.
+- Yet more missing hunks... Nggh.
 
-* June 8
-- James Bursa fixed an init issue for RISC OS.
+- Always register for TCP events even if there are no outstanding queries, as the other side could always close the connection, which is a valid event which should be responded to.
 
-* May 11
-- Nico Stappenbelt reported that when processing domain and search lines in
-  the resolv.conf file, the first entry encountered is processed and used as
-  the search list. According to the manual pages for both Linux, Solaris and
-  Tru64, the last entry of either a domain or a search field is used.
+- Forgot to include a few hunks from ares_process.c earlier. Fixing now.
 
-  This is now adjusted in the code
+- Support a few more socket options, and refactor the option setting a bit. (Patch from the Google tree.)
 
-Version 1.2.0 (April 13, 2004)
+- Make the query callbacks return the number of timeouts that happened during the execution of a query, and update documentation accordingly. (Patch from the Google tree.)
 
-* April 2, 2004
-- Updated various man pages to look nicer when converted to HTML on the web
-  site.
+- 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.
 
-* April 1, 2004
-- Dirk Manske provided a new function that is now named ares_cancel(). It is
-  used to cancel/cleanup a resolve/request made using ares functions on the
-  given ares channel. It does not destroy/kill the ares channel itself.
+- Don't skip a server if it's the only one. (Bugfix from the Google tree.)
 
-- Dominick Meglio cleaned up the formatting in several man pages.
+Daniel Stenberg (27 Sep 2007)
+- wrong, revert the previous "fix" and instead check that the fd_set pointer
+  is non-NULL before we FD_CLR
 
-* March 30, 2004
-- Dominick Meglio's new ares_expand_string. A helper function when decoding
-  incoming DNS packages.
+- eek, fix the conditions to return on either problem instead of requiring
+  both to occur
 
-- Daniel Stenberg modified the Makefile.in to use a for loop for the man page
-  installation to improve overview and make it easier to add man pages.
+- Steinar H. Gunderson fixed: Correctly clear sockets from the fd_set on in
+  several functions (write_tcp_data, read_tcp_data, read_udp_packets) so that
+  if it fails and the socket is closed the following code doesn't try to use
+  the file descriptor.
 
-Version 1.1.0 (March 11, 2004)
+- Steinar H. Gunderson modified c-ares to now also do to DNS retries even when
+  TCP is used since there are several edge cases where it still makes sense.
 
-* March 9, 2004
-- Gisle Vanem improved build on Windows.
+- 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.
 
-* February 25, 2004
-- Dan Fandrich found a flaw in the Feb 22 fix.
+- added initial pkg-config file (attempt)
 
-- Added better configure --enable-debug logic (taken from the curl configure
-  script). Added acinclude.m4 to the tarball.
+Gunter Knauf (20 Jul 2007)
+- added curl include for debug builds.
 
-* February 23, 2004
-- Removed ares_free_errmem(), the function, the file and the man page. It was
-  not used and it did nothing.
+Daniel Stenberg (14 Jul 2007)
+- added another SEE ALSO
 
-- Fixed a lot of code that wasn't "64bit clean" and thus caused a lot of
-  compiler warnings on picky compilers.
+- Brad House's fix to hish a win32 compiler warning
 
-* February 22, 2004
-- Dominick Meglio made ares init support multiple name servers in the
-  NameServer key on Windows.
+- added Vlad's entire description of his valgrind fix
 
-* February 16, 2004
-- Modified ares_private.h to include libcurl's memory debug header if
-  CURLDEBUG is set. This makes all the ares-functions supervised properly by
-  the curl test suite. This also forced me to add inclusion of the
-  ares_private.h header in a few more files that are using some kind of
-  memory-related resources.
+- Vlad Dinulescu fixed two outstanding valgrind reports
 
-- Made the makefile only build ahost and adig if 'make demos' is used.
+Gunter Knauf (8 Jul 2007)
+- added better CodeWarrior detection.
 
-* February 10, 2004
-- Dirk Manske made ares_version.h installed with 'make install'
+- removed some obsolete include paths and defines.
 
-* February 4, 2004
-- ares_free_errmem() is subject for removal, it is simply present for future
-  purposes, and since we removed the extra parameter in strerror() it won't
-  be used by c-ares!
-- configure --enable-debug now enables picky compiler options if gcc is used
-- fixed several compiler warnings --enable-debug showed and Joerg Mueller-Tolk
-  reported
+- add test for gettimeofday() so that HAVE_GETTIMEOFDAY gets defined.
 
-Version 1.0.0 (February 3, 2004)
+- although the check for HAVE_STRUCT_TIMEVAL solved the redefine it is incorrect; lets see if a check for HAVE_GETTIMEOFDAY also works; if gettimeofday() is present then we can assume we have the timezone struct too.
 
-* February 3, 2004
-- now we produce the libcares.a library instead of the previous libares.a
-  since we are no longer compatible
+- added check for sys/param.h.
 
-* February 2, 2004
+- trial to catch problem with Daniels cross-mingw ares builds.
 
-- ares_strerror() has one argument less. This is the first official
-  modification of the existing provided ares API.
+- added NetWare CLIB-own header to solve gcc warnings.
 
-* January 29, 2004
+- few minor changes to make ares compile for NetWare CLIB architecture.
 
-- Dirk Manske fixed how the socket is set non-blocking.
+- changed to build for CLIB / LIBC.
 
-* January 4, 2004
+- sync'd with lib makefile changes: use var for awk; fixed RECV* / SEND* defines; debug var can be overwritten; added better compiler path handling.
 
-- Dominick Meglio made the private gettimeofday() become ares_gettimeofday()
-  instead in order to not pollute the name space and risk colliding with
-  other libraries' versions of this function.
+Daniel Stenberg (8 Jun 2007)
+- start working on 1.4.1
 
-* October 24, 2003. Daniel Stenberg
+Version 1.4.0 (8 Jun 2007)
 
-  Added ares_version().
+Daniel Stenberg (8 Jun 2007)
+- 1.4.0 preps
 
-Version 1.0-pre1 (8 October 2003)
+- the revert
 
-- James Bursa made it run on RISC OS
+- Revered Ashish Sharma's multiple entries patch, as it caused memory madness
 
-- Dominick Meglio made it run fine on NT4
+- minor edit since getting an ID seems pointless when failure happens
 
-- Duncan Wilcox made it work fine on Mac OS X
+- fix the bad bad bad mess this caused on name resolves returning more than
+  one name... Reported by James Bursa
 
-- Daniel Stenberg adjusted the windows port
+- Brad Spencer found and fixed three flaws in the code, found with the new
+  gcc 4.2.0 warning: -Waddress
 
-- liren at vivisimo.com made the initial windows port
+- Brad House fixed VS2005 compiler warnings due to time_t being 64bit.
+  He also made recent Microsoft compilers use _strdup() instead of strdup().
 
-* Imported the sources from ares 1.1.1
+- Ashish Sharma provided a patch for supporting multiple entries in the
+  /etc/hosts file. Patch edited for coding style and functionality by me
+  (Daniel).