1release 0.4 - initial public release
2
3release 0.5 - added caching, removed compiler warning on linux PPC
4
5release 0.6 - TCP handling: close socket and return to connect state if we
6              can't read the first byte. This corrects a problem seen very
7              occasionally where dnsmasq would loop using all available CPU.
8
9	      Added a patch from Cris Bailiff <c.bailiff@e-secure.com.au>
10	      to set SO_REUSEADDR on the tcp socket which stops problems when
11              dnsmasq is restarted and old connections still exist.
12
13	      Stopped claiming in doc.html that smail is the default Debian
14	      mailer, since it isn't any longer. (Pointed out by
15	      David Karlin <dkarlin@coloradomtn.edu>)
16
17release 0.7   Create a pidfile at /var/run/dnsmasq.pid
18
19	      Extensive armouring against "poison packets" courtesy of
20              Thomas Moestl <tmoestl@gmx.net>
21
22	      Set sockaddr.sa_family on outgoing address, patch from
23	      David Symonds <xoxus@usa.net>
24
25              Patch to clear cache on SIGHUP
26	      from Jason L. Wagner <nialscorva@yahoo.com>
27
28	      Fix bad bug resulting from not initialising value-result
29	      address-length parameter to recvfrom() and accept() - it
30	      worked by luck before!
31
32release 0.95  Major rewrite: remove calls to gethostbyname() and talk
33              directly to the upstream server(s) instead.
34              This has many advantages.
35              (1) Dnsmasq no longer blocks during long lookups.
36              (2) All query types are handled now, (eg MX) not just internet
37                  address queries. Addresses are cached, all other
38                  queries are forwarded directly.
39              (3) Time-to-live data from upstream server is read and
40                  used by dnsmasq to purge entries from the cache.
41              (4) /etc/hosts is still read and its contents served (unless
42	          the -h option is given).
43              (5) Dnsmasq can get its upstream servers from
44                  a file other than /etc/resolv.conf (-r option) this allows
45                  dnsmasq to serve names to the machine it is running
46                  on (put nameserver 127.0.0.1 in /etc/resolv.conf and
47                  give dnsmasq the option -r /etc/resolv.dnsmasq)
48              (6) Dnsmasq will re-read its servers if the
49                  modification time of resolv.conf changes. Along with
50                  4 above this allows nameservers to be set
51		  automatically by ppp or dhcp.
52
53              A really clever NAT-like technique allows the daemon to have lots
54              of queries in progress, but still remain very lightweight.
55	      Dnsmasq has a small footprint and normally doesn't allocate
56              any more memory after start-up. The NAT-like forwarding was
57              inspired by a suggestion from Eli Chen <eli@routefree.com>
58
59release 0.96  Fixed embarrasing thinko in cache linked-list code.
60
61release 0.98  Some enhancements and bug-fixes.
62              Thanks to "Denis Carre" <denis.carre@laposte.net> and Martin
63              Otte <otte@essc.psu.edu>
64
65	      (1) Dnsmasq now always sets the IP source address
66                  of its replies correctly. Older versions would not always
67                  do this on multi-homed and IP aliased hosts, which violates
68                  the RFC.
69              (2) Dnsmasq no longer crashes if a server loop is created
70	          (ie dnsmasq is told to use itself as an upstream server.)
71                  Now it just logs the problem and doesn't use the bad
72                  server address.
73              (3) Dnsmasq should now forward (but not cache) inverse queries
74                  and server status queries; this feature has not been tested.
75              (4) Don't write the pid file when in non-daemon mode.
76	      (5) Create the pid file mode 644, rather then 666 (!).
77              (6) Generate queries to upstream nameservers with unpredictable
78                  ids, to thwart DNS spoofers.
79              (7) Dnsmasq no longer forwards queries when the
80	          "recursion desired" bit is not set in the header.
81	      (8) Fixed getopt code to work on compliers with unsigned char.
82
83release 0.991 Added -b flag: when set causes dnsmasq to always answer
84	      reverse queries on the RFC 1918 private IP space itself and
85              never forward them to an upstream server. If the name is not in
86	      /etc/hosts, dnsmasq replies with the dotted-quad address.
87
88              Fixed a bug which stopped dnsmasq working on a box with
89              two or more interfaces with the same IP address.
90
91              Fixed cacheing of CNAMEs. Previously, a CNAME which pointed
92              to  a name with many A records would not have all the addresses
93              returned when being answered from the cache.
94
95	      Thanks to "Steve Hardy" <s.a.hardy@connectux.com> for his input
96              on these fixes.
97
98              Fixed race which could cause dnsmasq to miss the second of
99              two closely-spaced updates of resolv.conf (Thanks to Eli Chen
100              for pointing this out.)
101
102	      Fixed a bug which could cause dnsmasq to fail to cache some
103              dns names.
104
105release 0.992 Small change to memory allocation so that names in /etc/hosts
106              don't use cache slots. Also make "-c 0" flag meaningfully
107              disable caching completely.
108
109release 0.993 Return only the first (canonical) name from an entry in
110	      /etc/hosts as reply to reverse query.
111
112              Handle wildcard queries for names/addresses in /etc/hosts
113	      this is mainly to allow reverse lookups by dig to succeed.
114	      (Bug reported by Simon J. Rowe" <srowe@mose.org.uk>)
115
116              Subtle change to the logic which selects which of multiple
117	      upstream servers we send queries to. This fixes a problem
118              where dnsmasq continuously sends queries to a server which
119	      is returning error codes and ignores one which is working.
120
121release 0.994 Fixed bug which broke lookup of names in /etc/hosts
122              which have upper-case letters in them. Thanks for Joao Clemente
123              for spotting that one.
124
125	      Output cache statistics on receipt of SIGUSR1. These go
126              to syslog except in debug (-d) mode, when a complete cache
127	      dump goes to stdout. Suggestion from Joao Clemente, code
128              based in John Volpe's.
129
130	      Accept GNU long options on the command line. Code from
131	      John Volpe for this.
132
133              Split source code into multiple files and produced
134	      a proper makefile.
135
136              Included code from John Volpe to parse dhcp.leases file
137              written by ISC dhcpd. The hostnames in the leases file are
138              added to the cache and updated as dhcpd updates the
139              leases file. The code has been heavily re-worked by me,
140              so any bugs are probably mine.
141
142release 0.995 Small tidy-ups to signal handling and cache code.
143
144release 0.996 Added negative caching: If dnsmasq gets a "no such domain" reply
145              from an upstream nameserver, it will cache that information
146              for a time specified by the SOA RR in the reply. See RFC 2308
147              for details. This is useful with  resolver libraries
148              which append assorted suffices to non-FQDN in an attempt to
149              resolve them, causing useless cache misses.
150
151              Added -i flag, which restricts dnsmasq to offering name service
152              only on specified interfaces.
153
154release 0.997 Deleted INSTALL script and added "install" target to makefile.
155
156              Stopped distributing binaries in the tarball to avoid
157              libc version clashes.
158
159              Fixed  interface detection code to
160              remove spurious startup errors in rare circumstances.
161
162              Dnsmasq now changes its uid, irrevocably, to nobody after
163              startup for security reasons. Thanks to Peter Bailey for
164              this patch.
165
166	      Cope with infinite DHCP leases. Patch thanks to
167	      Yaacov Akiba Slama.
168
169	      Added rpm control files to .tar.gz distribution. Thanks to
170              Peter Baldwin at ClarkConnect for those.
171
172              Improved startup script for rpms. Thanks to Yaacov Akiba Slama.
173
174release 1.0   Stable release: dnsmasq is now considered feature-complete
175              and stable.
176
177release 1.1   Added --user argument to allow user to change to
178              a different userid.
179
180              Added --mx-target argument to allow mail to be delivered
181              away from the gateway machine running dnsmasq.
182
183              Fixed highly  obscure bug with wildcard queries for
184              DHCP lease derived names.
185
186              Moved manpage from section 1 to section 8.
187
188              Added --no-poll option.
189              Added Suse-rpm support.
190              Thanks to Joerg Mayer for the last two.
191
192release 1.2   Added IPv6 DNS record support. AAAA records are cached
193              and read from /etc/hosts. Reverse-lookups in the
194	      ip6.int and ip6.arpa domains are suppored. Dnsmasq can
195              talk to upstream servers via IPv6 if it finds IP6 addresses
196              in /etc/resolv.conf and it offers DNS service automatically
197              if IPv6 support is present in the kernel.
198
199              Extended negative caching to NODATA replies.
200
201              Re-vamped CNAME processing to cope with RFC 2317's use of
202              CNAMES to PTR RRs in CIDR.
203
204              Added config.h and a couple of symbols to aid
205              compilation on non-linux systems.
206
207release 1.3   Some versions of the Linux kernel return EINVAL rather
208              then ENPROTONOSUPPORT when IPv6 is not available,
209              causing dnsmasq to bomb out. This release fixes that.
210              Thanks to Steve Davis for pointing this one out.
211
212              Trivial change to startup logic so that dnsmasq logs
213              its stuff and reads config files straight away on
214              starting, rather than after the first query - principle
215              of least surprise applies here.
216
217release 1.4   Fix a bug with DHPC lease parsing which broke in
218              non-UTC timezones. Thanks to Mark Wormgoor for
219              spotting and diagnosing this. Fixed versions in
220              the .spec files this time. Fixed bug in Suse startup
221              script. Thanks to Didi Niklaus for pointing this out.
222
223release 1.5   Added --filterwin2k option which stops dnsmasq from forwarding
224	      "spam" queries from win2k boxes. This is useful to stop spurious
225              connections over dial-on-demand links. Thanks to Steve Hardy
226              for this code.
227
228              Clear "truncated" bit in replies we return from upstream. This
229              stops resolvers from switching to TCP, which is pointless since
230              dnsmasq doesn't support TCP. This should solve problems
231              in resolving hotmail.com domains.
232
233              Don't include getopt.h when Gnu-long-options are disabled -
234              hopefully this will allow compilation on FreeBSD.
235
236	      Added the --listen-address and --pid-file flags.
237
238              Fixed a bug which caused old entries in the DHCP leases file
239              to be used in preference to current ones under certain
240              circumstances.
241
242release 1.6   If a machine gets named via DHCP and the DHCP name doesn't have
243              a domain part and domain suffix is set using the -s flag, then
244              that machine has two names with the same address, with and
245              without the domain suffix. When doing a _reverse_ lookup to
246              get the name, the "without suffix" name used to be returned,
247              now the "with suffix" one gets returned instead. This change
248	      suggested by Arnold Schulz.
249
250              Fixed assorted typos in the documentation. Thanks
251              to David Kimdon.
252
253              Subtle rearrangement to the downloadable tarball, and stopped
254              distributing .debs, since dnsmasq is now an official Debian
255              package.
256
257release 1.7   Fix a problem with cache not clearing properly
258              on receipt of SIGHUP. Bug spotted by Sat Deshpande.
259
260              In group-id changing code:
261	      1) Drop supplimentary groups.
262              2) Change gid before dropping root (patch from Soewono Effendi.)
263              3) Change group to "dip" if it exists, to allow access
264                 to /etc/ppp/resolv.conf (suggestion from Jorg Sommer.)
265              Update docs to reflect above changes.
266
267              Other documentation changes from David Miller.
268              Added suggested script fragment for dhcpcd.exe.
269
270release 1.8   Fix unsafe use of tolower() macro - allows linking against
271              ulibc. (Patches from Soewono Effendi and Bjorn Andersson.)
272
273              Fix typo in usage string.
274
275	      Added advice about RedHat PPP configuration to
276              documentation. (Thanks to C. Lee Taylor.)
277
278	      Patches to fix problems on BSD systems from Marc Huber
279              and Can Erkin Acar. These add the options
280              HAVE_ARC4RANDOM and HAVE_SOCKADDR_SA_LEN to config.h.
281	      Elaborated config.h - should really use autoconf.
282
283	      Fix time-to-live calculation when chasing CNAMEs.
284
285	      Fix use-after-free and missing initialisation bugs in
286              the cache code. (Thanks to Marc Huber.)
287
288              Builds on Solaris 9. (Thanks to Marc Huber.)
289
290release 1.9   Fixes to rpm .spec files.
291
292              Don't put expired DHCP entries into the cache only to
293	      throw them away again.
294
295              Put dnsmasq on a severe memory diet: this reduces both
296              the amount of heap space used and the stack size
297              required. The difference is not really visible with
298              bloated libcs like glibc, but should dramatically reduce
299              memory requirements when linked against ulibc for use on
300              embeded routers, and that's the point really. Thanks to
301              Matthew Natalier for prompting this.
302
303	      Changed debug mode (-d) so that all logging appears on
304              stderr as well as going to syslogd.
305
306	      Added HAVE_IPV6 config symbol to allow compilation
307              against a libc which doesn't have IPv6 support.
308
309	      Added a facility to log all queries, enabled with -q flag.
310
311	      Fixed packet size checking bug in address extraction code.
312
313	      Halved default cache size - 300 was way OTT in typical use.
314
315	      Added self-MX function, enabled by -e flag. Thanks to
316              Lyonel Vincent for the patch.
317
318	      Added HAVE_FORK config symbol and stuff to support
319              uClinux. Thanks to Matthew Natalier for uClinux stuff.
320
321release 1.10  Log warnings if resolv.conf or dhcp.leases are not
322              accessable for any reason, as suggested by Hinrich Eilts.
323
324	      Fixed wrong address printing in error message about
325	      no interface with address.
326
327	      Updated docs and split installation instuctions into setup.html.
328
329	      Fix bug in CNAME chasing code: One CNAME pointing
330	      to many A records would lose A records after the
331	      first. This bug was introduced in version 1.9.
332
333	      Log startup failures at level Critical as well as
334	      printing them to standard error.
335	      Exit with return code 1 when given bad options.
336
337	      Cleaned up code for no-cache operation.
338
339              Added -o option which forces dnsmasq to use to
340              upstream servers in the order they appear in /etc/resolv.conf.
341
342              Added upstream server use logging.
343
344              Log full cache dump on receipt of SIGUSR1 when query
345              logging is enabled (-q switch).
346
347	      Added -S option to directly specify upstream servers and
348              added ability to direct queries for specific domains to
349              specfic servers. Suggested by Jens Vonderheide.
350
351	      Upgraded random ID generation - patch from Rob Funk.
352
353	      Fixed reading of domains in arguments with capital
354              letters or trailing periods.
355
356	      Fixed potential SEGV when given bad options.
357
358	      Read options from /etc/dnsmasq.conf if it exists.
359              Do sensible things with missing parameters, eg
360              "--resolv-file=" turns off reading /etc/resolv.conf.
361
362release 1.11  Actually implement the -R flag promised in the 1.10 man page.
363
364              Improve and rationalise the return codes in answers to
365              queries. In the case that there are no available
366              upstream servers to forward a query to, return REFUSED.
367              This makes sendmail work better on modem connected
368              systems when the modem link is down (Thanks to Roger Plant).
369	      Cache and return the NXDOMAIN status of failed queries:
370              this makes the `host` command work when traversing search
371              paths (Thanks to Peter Bailey). Set the "authoritative"
372              bit in replies containing names from /etc/hosts or DHCP.
373
374              Tolerate MS-DOS style line ending codes in /etc/hosts
375	      and /etc/resolv.conf, for people who copy from winsock
376              installations.
377
378	      Allow specification of more than one resolv.conf file. This is
379              intended for laptops which connect via DHCP or
380              PPP. Whichever resolv.conf was updated last is used.
381
382              Allow -S flags which specify a domain but no server
383              address. This gives local domains which are never forwarded.
384
385	      Add -E flag to automatically add the domain suffix to
386              names in /etc/hosts -suggestion from Phil Harman.
387
388	      Always return a zero time-to-live for names derived from
389	      DHCP which stops anthing else caching these
390              names. Previously the TTL was derived from the lease
391              time but that is incorrect since a lease can be given
392              up early: dnsmasq would know this but anything with the
393              name cached with long TTL would not be updated.
394
395	      Extended HAVE_IPV6 config flag to allow compliation on
396	      old systems which don't have modern library routines
397	      like inet_ntop(). Thanks to Phil Harman for the patch.
398
399release 1.12  Allow more than one domain in server config lines and
400	      make "local" a synonym for "server". This makes things
401	      like "local=/localnet/thekelleys.org.uk/" legal. Allow
402              port to specified as part of server address.
403
404	      Allow whole domains to have an IP address specified
405              in /etc/dnsmasq.conf. (/etc/hosts doesn't work domains).
406              address=/doubleclick.net/127.0.0.1 should catch all
407              those nasty banner ads. Inspired by a patch
408	      from Daniel Gryniewicz
409
410	      Log the source of each query when logging switched on.
411
412	      Fix bug in script fragment for dhcpcd - thanks to Barry Stewart.
413
414	      Fix bug which meant that strict-order and self-mx were
415	      always enabled.
416
417	      Builds with Linux libc5 now - for the Freesco project.
418
419	      Fixed Makefile installation script (patch from Silvan
420	      Minghetti) and added CC and CFLAGS variables.
421
422	      Improve resource allocation to reduce vulnerability to
423	      DOS attacks - the old version could have all queries
424	      blocked by a continuous high-speed stream of
425	      queries. Now some queries will succeed, and the excess
426	      will be rejected with a server fail error. This change also
427	      protects against server-loops; setting up a resolving
428              loop between two instances of dnsmasq is no longer
429	      catastrophic. The servers will continue to run, looped
430	      queries fail and a warning is logged. Thanks to C. Lee
431	      Taylor for help with this.
432
433release 1.13  Added support for building rpms suitable for modern Suse
434	      systems. (patch from Andi <cambeis@netplace.de>)
435
436	      Added options --group, --localmx, --local-ttl,
437	      --no-negcache, --addn-host.
438
439	      Moved all the various rpm-building bits into /rpm.
440
441	      Fix builds with glibc 2.1 (thanks to Cristian
442	      Ionescu-Idbohrn)
443
444	      Preserve case in domain names, as per RFC1035.
445
446	      Fixed ANY queries to domains with --address specification.
447
448	      Fixed FreeBSD build. (thanks to Steven Honson)
449
450	      Added -Q option which allows a specified port to be used
451	      to talk to upstream servers. Useful for people who want
452	      very paranoid firewalls which open individual UDP port.
453	      (thanks to David Coe for the patch)
454
455release 1.14  Fixed man page description of -b option which confused
456	      /etc/hosts with /etc/resolv.conf. (thanks to Christopher
457	      Weimann)
458
459	      Fixed config.h to allow building under MACOS X and glibc
460	      2.0.x. (thanks to Matthew Gregan and Serge Caron)
461
462	      Added --except-interface option. (Suggested by Serge Caron)
463
464	      Added SIGUSR2 facility to re-scan for new
465	      interfaces. (Suggested by Serge Caron)
466
467	      Fixed SEGV in option-reading code for invalid options.
468	      (Thanks to Klaas Teschauer)
469
470              Fixed man page to clarify effect of SIGUSR1 on
471	      /etc/resolv.conf.
472	      (Thanks to Klaas Teschauer)
473
474	      Check that recieved queries have only rfc1035-legal characters
475	      in them. This check is mainly to avoid bad strings being
476	      sent to syslog.
477
478	      Fixed &&/& confusion in option.c and added DESTDIR
479	      variable for "make install" (Thanks to Osvaldo
480              Marques for the patch.)
481
482	      Fixed /etc/hosts parsing code to cope with MS-DOS
483	      line-ends in the file. This was supposed to be done in
484	      version 1.11, but something got missed. (Thanks to Doug
485	      Copestake for helping to find this.)
486
487	      Squash repeated name/address pairs read from hosts
488	      files.
489
490	      Tidied up resource handling in util.c (Thanks to
491	      Cristian Ionescu-Idbohrn).
492
493	      Added hashed searching of domain names. People are starting
494	      to use dnsmasq with larger loads now, and bigger caches,
495	      and large lists of ad-block addresses. This means doing
496	      linear searches can start to use lots of CPU so I added hashed
497	      searching and seriously optimised the cache code for
498	      algorithmic efficiency. Also upped the limit on cache
499	      size to 10000.
500
501	      Fixed logging of the source of names from the additional
502	      hosts file and from the "bogus private address" option.
503
504	      Fixed spurious re-reading of empty lease files. (Thanks
505	      to Lewis Baughman for spotting this.)
506
507	      Fixed building under uclibc (patch from Cristian Ionescu-Idbohrn)
508
509	      Do some socket tweaking to allow dnsmasq to co-exist
510	      with BIND. Thanks to Stefan 'Sec' Zehl for the patch.
511
512release 1.15  Added --bogus-nxdomain option.
513
514              Restrict checking of resolv.conf and DHCP leases files
515              to once per second. This is intended to improve
516              performance under heavy loads. Also make a system call
517	      to get the current time once per query, rather than four
518              times.
519
520	      Increased number of outstanding queries to 150 in
521	      config.h
522
523release 1.16  Allow "/" characters in domain names - this fixes
524              caching of RFC 2317 CNAME-PTR records.
525
526	      Fixed brain-fart in -B option when GETOPT_LONG not
527	      enabled - thanks to Steven Young and Jason Miller
528	      for pointing this out.
529
530	      Generalised bogus-nxdomain code: allow more than one
531	      address to check, and deal with replies with multiple
532	      answer records. (Based on contribution from Humberto
533	      Massa.)
534
535	      Updated the documentation to include information about
536	      bogus-nxdomain and the Verisign tragedy.
537
538	      Added libraries needed on Solaris to Makefile.
539
540	      Added facility to set source address in queries to
541	      upstream nameservers. This is useful with multihomed
542	      hosts, especially when using VPNs. Thanks to Tom Fanning
543	      for suggesting this feature.
544
545	      Tweaked logging: log to facility LOCAL0 when in
546	      debug/no-daemon mode and changed level of query logging
547	      from INFO to DEBUG. Make log options controllable in
548	      config.h
549
550release 1.17  Fixed crash with DHCP hostnames > 40 characters.
551
552              Fixed name-comparision routines to not depend on Locale,
553              in theory this versions since 1.15 could lock up or give
554              wrong results when run with locale != 'C'.
555
556	      Fix potential lockup in cache code. (thanks to Henning
557	      Glawe for help chasing this down.)
558
559	      Made lease-file reader bullet-proof.
560
561	      Added -D option, suggested by Peter Fichtner.
562
563release 1.18  Added round-robin DNS for names which have more than one
564              address. In this case all the addresses will be
565              returned, as before, but the order will change on each
566              query.
567
568	      Remove stray tolower() and isalnum() calls missed in
569	      last release to complete LOCALE independence.
570
571	      Allow port numbers in source-address specifications.
572
573	      For hostnames without a domain part which don't get
574	      forwarded because -D is in effect, return NXDOMAIN not
575	      an empty reply.
576
577	      Add code to return the software version in repsonse to the
578	      correct magic query in the same way as BIND. Use
579	      "dig version.bind chaos txt" to make the query.
580
581	      Added negative caching for PTR (address to name) records.
582
583	       Ensure that names of the form typically used in PTR queries
584              (ie w.x.yz.in-addr.arpa and IPv6 equivalents) get
585              correct answers when queried as other types. It's
586              unlikely that anyone would do this, but the change makes
587              things pedantically correct.
588
589	      Taught dnsmasq to understand "bitstring" names, as these
590	      are used for PTR lookups of IPv6 addresses by some
591	      resolvers and lookup tools. Dnsmasq now understands both
592	      the ip6.int domain and the ip6.arpa domain and both
593	      nibble and bitstring formats so it should work with any
594	      client code. Standards for this stuff have flip-flopped
595	      over the last few years, leaving many different clients
596	      in their wake. See RFC2673 for details of bitstrings.
597
598	      Allow '_' characters in domain names: Legal characters
599	      are now [a-z][A-Z].-_ Check names read from hosts files
600	      and leases files and reject illegal ones with a message
601	      in syslog.
602
603	      Make empty domain names in server and address options
604	      have the special meaning "unqualified
605	      names". (unqualified names are names without any dots in
606	      them). It's now possible to do server=//1.2.3.4 and have
607	      unqualified names sent to a special nameserver.
608
609release 2.0rc1
610              Moved source code into src/ directory.
611
612	      Fixes to cure compilation breakage when HAVE_IPV6 not
613	      set, thanks to Claas Hilbrecht.
614
615	      BIG CHANGE: added an integrated DHCP server and removed
616	      the code to read ISC dhcp.leases. This wins in terms
617	      of ease of setup and configuration flexibility and
618	      total machine resources consumed.
619
620	      Re-jiged the signal handling code to remove a race
621	      condition and to be more portable.
622
623release 2.0
624	     Thanks to David Ashworth for feedback which informed many
625	     of the fixes below.
626
627             Allow hosts to be specified by client ID in dhcp-hosts
628             options. These are now one of
629             dhcp-host=<hardware addr>,....
630             dhcp-host=id:<hex client id>,.....
631             dhcp-host=id:<ascii client id>,.....
632
633	     Allow dhcp-host options to specify any IP address on the
634             DHCP-served network, not just the range available for
635             dynamic allocation.
636
637	     Allow dhcp-host options for the same host with different
638	     IP adresses where the correct one will be selected for
639	     the network the host appears on.
640
641	     Fix parsing of --dhcp-option to allow more than one
642	     IP address and to allow text-type options.
643
644	     Inhibit use of --dhcp-option to send hostname DHCP options.
645
646	     Update the DNS with DHCP information after re-reading
647	     /etc/hosts so that any DHCP derived names which have been
648	     shadowed by now-deleted hosts entries become visible.
649
650	     Fix typos in dnsmasq.conf.example
651
652	     Fixes to Makefile(s) to help pkgsrc packaging - patch
653	     from "pancake".
654
655	     Add dhcp-boot option to support network boot.
656
657	     Check for duplicate IP addresses in dhcp-hosts lines
658	     and refuse to run if found. If allowed to remain these
659	     can provoke an infinite loop in the DHCP protocol.
660
661	     Attempted to rationalise the .spec files for rpm
662	     building. There are now files for Redhat, Suse and
663	     Mandrake. I hope they work OK.
664
665	     Fixed hard-to-reproduce crash involving use of local
666	     domains and IPv6 queries. Thanks to Roy Marples for
667	     helping to track that one down.
668
669release 2.1
670             Thanks to Matt Swift and Dag Wieers for many suggestions
671	     which went into this release.
672
673	     Tweak include files to allow compilation on FreeBSD 5
674
675             Fix unaligned access warnings on BSD/Alpha.
676
677	     Allow empty DHCP options, like so: dhpc-option=44
678
679             Allow single-byte DHCP options like so: dhcp-option=20,1
680
681	     Allow comments on the same line as options in
682	     /etc/dnsmasq.conf
683
684	     Don't complain when the same name and address is
685	     allocated to a host using DHCP and /etc/hosts.
686
687	     Added to the example configuration the dnsmasq equivalent
688	     of the ISC dhcpd settings given in
689             http://www.samba.org/samba/ftp/docs/textdocs/DHCP-Server-Configuration.txt
690
691	     Fixed long-existing strangeness in Linux IPv6 interface
692	     discovery code. The flags field in /proc/net/if_inet6 is
693	     _not_ the interface flags.
694
695	     Fail gracefully when getting an ENODEV error when trying
696	     to bind an IPv6 socket, rather than bailing out. Thanks
697	     to Jan Ischebeck for feedback on that.
698
699	     Allow the name->address mapping for static DHCP leases to
700	     be set by /etc/hosts. It's now possible to have
701     	        dhcp-host=<mac addr>,wibble
702	     or even
703                dhcp-host=wibble
704	     and in /etc/hosts have
705	        wibble 1.2.3.4
706	     and for the correct thing to happen. Note that some sort
707	     of dhcp-host line is still needed, it's not possible for
708	     random host to claim an address in /etc/hosts without
709	     some explicit configuration.
710
711	     Make 0.0.0.0 in a dhcp-option to mean "the machine
712	     running dnsmasq".
713
714             Fix lease time spec when specified in dhcp-range and not
715	     in dhcp-host, previously this was always one hour.
716
717             Fix problem with setting domains as "local only". -
718             thanks to Chris Schank.
719
720	     Added support for max message size DHCP option.
721
722release 2.2
723             Fix total lack for DHCP functionality on
724	     Linux systems with IPv6 enabled. - thanks to
725	     Jonathon Hudson for spotting that.
726
727	     Move default config file under FreeBSD - patch from
728	     Steven Honson
729
730release 2.3
731             Fix "install" makefile target. (reported by Rob Stevens)
732
733	     Ensure that "local=/domain/" flag is obeyed for all
734	     queries on a domain, not just A and AAAA. (Reported by
735	     Peter Fichtner.)
736
737	     Handle DHCPDECLINE messages and provide an error message
738	     in DHCPNAK messages.
739
740	     Add "domain" setting example to
741	     dnsmasq.conf.example. Thanks to K P Kirchdorfer for
742	     spotting that it was missing.
743
744	     Subtle change to the DHCPREQUEST handling code to work
745	     around a bug in the DHCP client in HP Jetdirect printers.
746	     Thanks to Marko Stolle for finding this problem.
747
748	     Return DHCP T1 and T2 times, with "fuzz" to desychronise lease
749	     renewals, as specified in the RFC.
750
751	     Ensure that the END option is always present in DHCP
752	     packets , even if the packet is too small to fit all
753	     the requested options.
754
755	     Handle larger-than-default DHCP packets if required, up
756	     to the ethernet MTU.
757
758	     Fix a couple of places where the return code from
759	     malloc() was not checked.
760
761	     Cope with a machine taking a DHCP lease and then moving
762	     network so that the lease address is no longer valid.
763
764	     The DHCP server will now work via a BOOTP relay - remote
765	     networks are configured with the dhcp-range option the
766	     same as directly connected ones, but they need an
767	     additional netmask parameter. Eg
768	     --dhcp-range=192.168.4.10,192.168.4.50,255.255,255.0
769             will enable DHCP service via a BOOTP relay on the
770	     192.168.4.0 network.
771
772	     Add a limit on the number of available DHCP leases,
773	     otherwise the daemon could be DOSed by a malicious
774	     host. The default is 150, but it can be changed by the
775	     dhcp-lease-max option.
776
777	     Fixed compilation on OpenBSD (thanks to Frederic Brodbeck
778	     for help with that.)
779
780	     Reworked the DHCP network handling code for two good
781	     effects: (1) The limit of one network only for DHCP on
782	     FreeBSD is now gone, (2) The DHCP server copes with
783	     dynamically created interfaces. The one-interface
784	     limitation remains for OpenBSD, which is missing
785	     extensions to the socket API which have been in Linux
786	     since version 2.2 and FreeBSD since version 4.8.
787
788	     Reworked the DNS network code to also cope with
789	     dynamically created interfaces. dnsmasq will now listen
790	     to the wildcard address and port 53 by default, so if no
791	     --interface or --address options are given it will handle
792	     dynamically created interfaces. The old behaviour can be
793	     restored with --bind-interfaces for people running BIND
794	     on one interface and dnsmasq on another. Note that
795	     --interface and --address options still work, but the
796	     filtering is done by dnsmasq, rather then the kernel.
797	     This works on Linux, and FreeBSD>=5.0. On systems which
798	     don't support the required API extensions, the old
799	     behaviour is used, just as if --bind-interfaces had been set.
800
801	     Allow IPv6 support to be disabled at compile time. To do
802	     that, add -DNO_IPV6 to the CFLAGS. Thanks to Oleg
803	     I. Vdovikin for the suggestion to do that.
804
805	     Add ability to set DHCP options per network. This is done
806	     by giving a network an identifier like this:
807	     dhcp-range=red-net,192.168.0.10,192.168.0.50
808	     and then labeling options intended for that network only
809	     like this:
810	     dhcp-option=red-net,6,1.1.1.1
811	     Thanks to Oleg Vdovikin for arguing that one through.
812
813	     Made errors in the configuration file non-fatal: dnsmasq
814	     will now complain bitterly, but continue.
815
816	     Added --read-ethers option, to allow dnsmasq to pull
817	     static DHCP information from that file.
818	     Thanks to Andi Cambeis for that suggestion.
819
820	     Added HAVE_BROKEN_RTC compilation option to support
821	     embedded systems without a stable RTC. Oleg Vdovikin
822	     helped work out how to make that work.
823
824release 2.4
825	     Fixed inability to start when the lease file doesn't
826	     already exist. Thanks to Dag Wieers for reporting that.
827
828	     Fixed problem were dhcp-host configuration options did
829	     not play well with entries in /etc/ethers for the same
830	     host. Thanks again to Dag Wieers.
831
832	     Tweaked DHCP code to favour moving to a newly-configured
833	     static IP address rather than an old lease when doing
834	     DHCP allocation.
835
836	     Added --alias configuration option. This provides IPv4
837	     rewrite facilities like Cisco "DNS doctoring". Suggested
838	     by Chad Skeeters.
839
840	     Fixed bug in /etc/ethers parsing code triggered by tab
841	     characters. Qudos to Dag Wieers for hepling to nail that
842	     one.
843
844	     Added "bind-interfaces" option correctly.
845
846release 2.5
847	     Made "where are we allocating addresses?" code in DHCP
848	     server cope with requests via a relay which is on a
849	     directly connected network for which there is not a
850	     configured netmask. This strange state of affairs occurs
851	     with win4lin. Thanks to Alex Melt and Jim Horner for bug
852	     reports and testing with this.
853
854	     Fixed trivial-but-irritating missing #include which broke
855	     compilation on *BSD.
856
857	     Force --bind-interfaces if IP-aliased interface
858	     specifications are used, since the sockets API provides
859	     no other sane way to determine which alias of an
860	     interface a packet was sent to. Thanks to Javier Kohen
861	     for the bug report.
862
863release 2.6
864	     Support Token Ring DHCP. Thanks to Dag Wieers for help
865	     testing. Note that Token ring support only works on Linux
866	     currently.
867
868	     Fix compilation on MacOS X. Thanks to Bernhard Ehlers for
869	     the patch.
870
871	     Added new "ignore" keyword for
872	     dhcp-host. "dhcp-host=11:22:33:44:55:66,ignore" will
873	     cause the DHCP server to ignore any host with the given
874	     MAC address, leaving it to other servers on the
875	     network. This also works with client-id and hostnames.
876	     Suggestion by Alex Melt.
877
878	     Fixed parsing of hex client IDs. Problem spotted by Peter
879	     Fichtner.
880
881	     Allow conf-file options in configuration file, to
882	     provide an include function.
883
884	     Re-read /etc/ethers on receipt of SIGHUP.
885
886	     Added back the ability to read ISC dhcpd lease files, by
887	     popular demand. Note that this is deprecated and for
888	     backwards compatibility only. You can get back the 4K of
889	     memory that the code occupies by undefining
890	     "HAVE_ISC_READER" in src/config.h
891
892	     Added ability to disable "pool" DHCP address allocation
893	     whilst leaving static leases working. The syntax is
894	     "dhcp-range=192.168.0.0,static"
895	     Thanks to Grzegorz Nosek for the suggestion.
896
897	     Generalized dnsmasq-rh.spec file to work on Mandrake too,
898	     and removed dnsmasq-mdk.spec. Thanks to Doug Keller.
899
900	     Allow DHCP options which are tied to specific static
901	     leases in the same way as to specific networks.
902
903	     Generalised the dhcp-option parser a bit to allow hex
904	     strings as parameters. This is now legal:
905	     dhcp-option=128,e4:45:74:68:00:00
906	     Inspired by a patch from Joel Nordell.
907
908	     Changed the semantics of argument-less dhcp-options for
909	     the default-setting ones, ie 1, 3, 6 and 28. Now, doing
910	     eg, dhcp-option=3 stops dnsmasq from sending a default
911	     router option at all. Thanks to Scott Emmons for pointing
912	     out that this is useful.
913
914	     Fixed dnsmasq.conf parsing bug which interpreted port
915	     numbers in server= lines as a comment. To start a
916	     comment, a '#' character must now be a the start of a
917	     line or preceded by whitespace. Thanks to Christian
918	     Haggstrom for the bug report.
919
920release 2.7
921             Allow the dhcp-host specification of id:* which makes
922	     dnsmasq ignore any client-id. This is useful to ensure
923	     that a dual-boot machine sees the same lease when one OS
924	     gives a client-id and the other doesn't. It's also useful
925	     when PXE boot DHCP does not use client IDs but the OS it boots
926             does. Thanks to Grzegorz Nosek for suggesting this enhancement.
927
928	     No longer assume that ciaddr is zero in received DHCPDISCOVER
929	     messages, just for security against broken clients.
930
931	     Set default of siaddr field to the address of the machine running
932             dnsmasq when not explicitly set using dhcp-boot
933             option. This is the ISC dhcpd behaviour.
934
935             Send T1 and T2 options in DHCPOFFER packets. This is required
936	     by the DHCP client in some JetDirect printers. Thanks
937             to Paul Mattal for work on this.
938
939	     Fixed bug with DHCP on OpenBSD reported by Dominique Jacquel.
940	     The code which added loopback interfaces to the list
941	     was confusing the DHCP code, which expected one interface only.
942	     Solved by adding loopback interfaces to address list instead.
943
944	     Add dhcp-vendorclass option to allow options to be sent only
945	     to certain classes of clients.
946
947	     Tweaked option search code so that if a netid-qualified
948	     option is used, any unqualified option is ignored.
949
950	     Changed the method of picking new dynamic IP
951	     addresses. This used to use the next consecutive
952	     address as long it was free, now it uses a hash
953	     from the client hardware address. This reduces the amount
954	     of address movement for clients which let their lease
955	     expire and allows consecutive DHCPOFFERS to the same host
956	     to (almost always) be for the same address, without
957	     storing state before a lease is granted.
958
959	     Tweaked option handling code to return all possible
960	     options rather than none when DHCP "requested options"
961	     field is missing. This fixes interoperability with
962	     ancient IBM LANMAN DHCP clients. Thanks to Jim Louvau for
963	     help with this.
964
965release 2.8
966	     Pad DHCP packets to a minimum size of 300 bytes. This
967	     fixes interoperability problems with the Linux in-kernel
968	     DHCP/BOOTP client. Thanks to Richard Musil for
969	     diagnosing this and supplying a patch.
970
971	     Fixed option-parsing bug and potential memory leak. Patch
972	     from Richard Musil.
973
974	     Improved vendor class configuration and added user class
975	     configuration. Specifically: (1) options are matched on
976	     the netids from dhcp-range, dhcp-host, vendor class and
977	     user class(es). Multiple net-ids are allowed and options
978	     are searched on them all. (2) matches agains vendor class
979	     and user class are now on a substring, if the given
980	     string is a substring of the vendor/user class, then a
981	     match occurs. Thanks again to Richard Musil for prompting
982	     this.
983
984	     Make "#" match any domain on --address and --server
985	     flags. --address=/#/1.2.3.4 will return 1.2.3.4 for _any_
986	     domain not otherwise matched. Of course
987	     --server=/#/1.2.3.4 is exactly equivalent to
988	     --server=1.2.3.4. Special request from Josh Howlett.
989
990	     Fixed a nasty bug which would cause dnsmasq to lose track
991	     of leases for hosts which had a --dhcp-host flag without
992	     a name specification. The mechanism for this was that
993	     the hostname could get erroneously set as a zero-length
994	     string and then written to the leases file as a
995	     mal-formed line. Restarting dnsmasq would then lose the lease.
996	     Alex Hermann's work helped chase down this problem.
997
998	     Add checks against DHCP clients which return zero-length
999	     hostnames. This avoids the potential lease-loss problems
1000	     reffered to above. Also, if a client sends a hostname when
1001	     it creates a lease but subsequently sends no or a
1002	     zero-length hostname whilst renewing, continue to use the
1003	     existing hostname, don't wipe it out.
1004
1005	     Tweaked option parsing to flag some parameter errors.
1006
1007release 2.9
1008	     Fixed interface filter code for two effects: 1) Fixed bug
1009	     where queries sent via loopback interface
1010	     but to the address of another interface were ignored
1011	     unless the loopback interface was explicitly configured.
1012	     2) on OpenBSD failure to configure one interface now
1013	     causes a fatal error on startup rather than an huge
1014	     stream of log messages. Thanks to Erik Jan Tromp for
1015	     finding that bug.
1016
1017	     Changed server selection strategy to improve performance
1018	     when there are many available servers and some are
1019	     broken. The new algorithm is to pick as before for the
1020	     first try, but if a query is retried, to send to all
1021	     available servers in parallel. The first one to reply
1022	     then becomes prefered for the next query. This should
1023	     improve reliability without generating significant extra
1024	     upstream load.
1025
1026	     Fixed breakage of special servers/addresses for
1027	     unqualified domains introduced in version 2.8
1028
1029	     Allow fallback to "bind-interfaces" at runtime: Some
1030	     verions of *BSD seem to have enough stuff in the header
1031	     files to build but no kernel support. Also now log if
1032	     "bind-interfaces" is forced on.
1033
1034	     Log replies from upstream servers which refuse to do
1035	     recursion - dnsmasq is not a recursive nameserver and
1036	     relies on upstream servers to do the recursion, this
1037	     flags a configuration error.
1038
1039	     Disable client-id matching for hosts whose MAC address is
1040	     read from /etc/ethers. Patch from Oleg I. Vdovikin.
1041
1042	     Extended --mx-host flag to allow arbitrary targets for MX
1043	     records, suggested by Moritz Bunkus.
1044
1045	     Fixed build under NetBSD 2.0 - thanks to Felix Deichmann
1046	     for the patch.
1047
1048	     Deal correctly with repeated addresses in /etc/hosts. The
1049	     first name found is now returned for reverse lookups,
1050	     rather than all of them.
1051
1052	     Add back fatal errors when nonexistant
1053	     interfaces or interface addresses are given but only in
1054	     "bind-interfaces" mode. Principle of least surprise applies.
1055
1056	     Allow # as the argument to --domain, meaning "read the
1057	     domain from the first search directive in
1058	     /etc.resolv.conf". Feature suggested by Evan Jones.
1059
1060release 2.10
1061	    Allow --query-port to be set to a low port by creating and
1062	    binding the socket before dropping root. (Suggestion from
1063	    Jamie Lokier)
1064
1065	    Support TCP queries. It turned out to be possible to do
1066	    this with a couple of hundred lines of code, once I knew
1067	    how. The executable size went up by a few K on i386.
1068	    There are a few limitations: data obtained via TCP is not
1069	    cached, and dynamically-created interfaces may break under
1070	    certain circumstances. Source-address or query-port
1071	    specifications are ignored for TCP.
1072
1073	    NAK attempts to renew a DHCP lease where the DHCP range
1074	    has changed and the lease is no longer in the allowed
1075	    range. Jamie Lokier pointed out this bug.
1076
1077	    NAK attempts to renew a pool DHCP lease when a statically
1078	    allocated address has become available, forcing a host to
1079	    move to its allocated address. Lots of people have
1080	    suggested this change and been rebuffed (they know who
1081	    they are) the straws that broke the camel's back were Tim
1082	    Cutts and Jamie Lokier.
1083
1084	    Remove any nameserver records from answers which are
1085	    modified by --alias flags. If the answer is modified, it
1086	    cannot any longer be authoritative.
1087
1088	    Change behaviour of "bogus-priv" option to return NXDOMAIN
1089	    rather than a PTR record with the dotted-quad address as
1090	    name. The new behaviour doesn't provoke tcpwrappers like
1091	    the old behavior did.
1092
1093	    Added a patch for the Suse rpm. That changes the default
1094	    group to one suitable for Suse and disables inclusion of
1095	    the ISC lease-file reader code. Thanks to Andy Cambeis for
1096	    his ongoing work on Suse packaging.
1097
1098	    Support forwarding of EDNS.0 The maximum UDP packet size
1099	    defaults to 1280, but may be changed with the
1100	    --edns-packet-max option. Detect queries with the do bit
1101	    set and always forward them, since DNSSEC records are
1102	    not cached. This behaviour is required to make
1103	    DNSSECbis work properly though dnsmasq. Thanks to Simon
1104	    Josefsson for help with this.
1105
1106	    Move default config file location under OpenBSD from
1107	    /usr/local/etc/dnsmasq.conf to /etc/dnsmasq.conf. Bug
1108	    report from Jonathan Weiss.
1109
1110	    Use a lease with matching MAC address for a host which
1111	    doesn't present a client-id, even if there was a client ID
1112	    at some point in the past. This reduces surprises when
1113	    changing DHCP clients, adding id:* to a host, and from the
1114	    semantics change of /etc/ethers in 2.9. Thanks to Bernard
1115	    Sammer for finding that.
1116
1117	    Added a "contrib" directory and in it the dnslist utility,
1118	    from Thomas Tuttle.
1119
1120	    Fixed "fail to start up" problems under Linux with IPv6
1121	    enabled. It's not clear that these were an issue in
1122	    released versions, but they manifested themselves when TCP
1123	    support was added. Thanks to Michael Hamilton for
1124	    assistance with this.
1125
1126version 2.11
1127	    Fixed DHCP problem which could result in two leases in the
1128            database with the same address. This looked much more
1129            alarming then it was, since it could only happen when a
1130            machine changes MAC address but kept the same name. The
1131            old lease would persist until it timed out but things
1132            would still work OK.
1133
1134	    Check that IP addresses in all dhcp-host directives are
1135	    unique and die horribly if they are not, since otherwise
1136	    endless protocol loops can occur.
1137
1138	    Use IPV6_RECVPKTINFO as socket option rather than
1139	    IPV6_PKTINFO where available. This keeps late-model FreeBSD
1140	    happy.
1141
1142	    Set source interface when replying to IPv6 UDP
1143	    queries. This is needed to cope with link-local addresses.
1144
1145version 2.12
1146            Added extra checks to ensure that DHCP created DNS entries
1147	    cannot generate multiple DNS address->name entries. Thanks to
1148	    Stefan Monnier for finding the exact set of configuration
1149            options which could create this.
1150
1151	    Don't set the the filterwin2k option in the example config
1152	    file and add warnings that is breaks Kerberos. Thanks to
1153	    Simon Josefsson and Timothy Folks for pointing that out.
1154
1155	    Log types of incoming queries as well as source and domain.
1156
1157	    Log NODATA replies generated as a result of the
1158	    filterwin2k option.
1159
1160version 2.13
1161	    Fixed crash with un-named DHCP hosts introduced in 2.12.
1162	    Thanks to Nicolo Wojewoda and Gregory Gathy for bug reports.
1163
1164version 2.14
1165	    Fix DHCP network detection for hosts which talk via a
1166	    relay. This makes lease renewal for such hosts work
1167	    correctly.
1168
1169	    Support RFC3011 subnet selectors in the DHCP server.
1170
1171	    Fix DHCP code to generate RFC-compliant responses
1172            to hosts in the INIT-REBOOT state.
1173
1174	    In the DHCP server, set the receive buffer size on
1175	    the transmit-only packet socket to zero, to avoid
1176	    waste of kernel buffers.
1177
1178	    Fix DHCP address allocation code to use the whole of
1179	    the DHCP range, including the start and end addresses.
1180
1181	    Attempt an ICMP "ping" on new addresses before allocating
1182	    them to leases, to avoid allocating addresses which are in use.
1183
1184	    Handle rfc951 BOOTP as well as DHCP for hosts which have
1185	    MAC address to IP address mapping defined.
1186
1187	    Fix compilation under MacOS X. Thanks to Chris Tomlinson.
1188
1189	    Fix compilation under NetBSD. Thanks to Felix Deichmann.
1190
1191	    Added "keep-in-foreground" option. Thanks to Sean
1192	    MacLennan for the patch.
1193
1194version 2.15
1195            Fixed NXDOMAIN/NODATA confusion for locally known
1196            names. We now return a NODATA reponse for names which are
1197            locally known. Now a query for (eg AAAA or MX) for a name
1198	    with an IPv4 address in /etc/hosts which fails upstream
1199            will generate a NODATA response. Note that the query
1200	    is still tried upstream, but a NXDOMAIN reply gets
1201            converted to NODATA. Thanks to Eric de Thouars, Eric
1202            Spakman and Mike Mestnik for bug reports/testing.
1203
1204	    Allow multiple dhcp-ranges within the same network. The
1205	    original intention was that there would be a dhcp-range
1206	    option for each network served, but there's no real reason
1207	    not to allow discontinuous ranges within a network so this
1208	    release adds support for that.
1209
1210	    Check for dhcp-ranges which are inconsistent with their
1211	    netmask, and generate errors or warnings.
1212
1213	    Improve error messages when there are problems with
1214	    configuration.
1215
1216version 2.16
1217	    Fixed typo in OpenBSD-only code which stopped compilation
1218            under that OS. Chris Weinhaupl gets credit for reporting
1219            this.
1220
1221	    Added dhcp-authoritative option which restores non-RFC
1222	    compliant but desirable behaviour of pre-2.14 versions and
1223            avoids long timeouts while DHCP clients try to renew leases
1224            which are unknown to dnsmasq. Thanks to John Mastwijk for
1225	    help with this.
1226
1227	    Added support to the DHCP option code to allow RFC-3397
1228	    domain search DHCP option (119) to be sent.
1229
1230            Set NONBLOCK on all listening sockets to workaround non-POSIX
1231            compliance in Linux 2.4 and 2.6. This fixes rare hangs which
1232            occured when corrupted packets were received. Thanks to
1233	    Joris van Rantwijk for chasing that down.
1234
1235	    Updated config.h for NetBSD. Thanks to Martin Lambers.
1236
1237            Do a better job of distinguishing between retransmissions
1238	    and new queries when forwarding. This fixes a bug
1239	    triggered by the polipo web cache which sends A and AAAA
1240	    queries both with the same transaction-ID. Thanks to
1241	    Joachim Berdal Haga and Juliusz Chroboczek for help with this.
1242
1243	    Rewrote cache code to store CNAMES, rather then chasing
1244	    them before storage. This eliminates bad situations when
1245	    clients get inconsistent views depending on if data comes
1246	    from the cache.
1247
1248	    Allow for more than one --addn-hosts flag.
1249
1250	    Clarify logged message when a DHCP lease clashes with an
1251	    /etc/hosts entry. Thanks to Mat Swift for the suggestion.
1252
1253	    Added dynamic-dnsmasq from Peter Willis to the contrib
1254	    section.
1255
1256version 2.17
1257	    Correctly deduce the size of numeric dhcp-options, rather
1258	    than making wild guesses. Also cope with negative values.
1259
1260	    Fixed use of C library reserved symbol "index" which broke
1261	    under certain combinations of library and compiler.
1262
1263	    Make bind-interfaces work for IPv6 interfaces too.
1264
1265	    Warn if an interface is given for listening which doesn't
1266	    currently exist when not in bind-interfaces mode. (This is
1267	    already a fatal error when bind-interfaces is set.)
1268
1269	    Allow the --interface and --except-interface options to
1270	    take a comma-separated list of interfaces.
1271
1272	    Tweak --dhcp-userclass matching code to work with the
1273	    ISC dhclient which violates RFC3004 unless its
1274	    configuration is very warped. Thanks to Cedric Duval for
1275	    the bug report.
1276
1277	    Allow more than one network-id tag in a dhcp-option. All
1278	    the tags must match to enable the option.
1279
1280	    Added dhcp-ignore option to disable classes of hosts based
1281	    on network-id tags. Also allow BOOTP options to be
1282	    controlled by network tags.
1283
1284	    Fill in sname, file and siaddr fields in replies to
1285	    DHCPINFORM messages.
1286
1287	    Don't send NAK replies to DHCPREQUEST packets for disabled
1288	    clients. Credit to Cedric Duval for spotting this.
1289
1290	    Fix rare crash associated with long DNS names and CNAME
1291	    records. Thanks to Holger Hoffstatte and especially Steve
1292	    Grecni for help chasing that one down.
1293
1294version 2.18
1295            Reworked the Linux interface discovery code (again) to
1296	    cope with interfaces which have only IPv6 addresses and
1297	    interfaces with more than one IPv6 address. Thanks to
1298            Martin Pels for help with that.
1299
1300	    Fix problems which occured when more than one dhcp-range
1301	    was specified in the same subnet: sometimes parameters
1302	    (lease time, network-id tag) from the wrong one would be
1303	    used. Thanks to Rory Campbell-Lange for the bug report.
1304
1305	    Reset cache statistics when clearing the cache.
1306
1307	    Enable long command line options on FreeBSD when the
1308	    C library supports them.
1309
1310version 2.19
1311            Tweaked the Linux-only interface discovery code to cope
1312	    with interface-indexes larger than 8 bits in
1313            /proc/net/if_inet6. This only affects Linux, obviously.
1314	    Thanks to Richard Atterer for the bug report.
1315
1316	    Check for under-length option fields in DHCP packets, a
1317	    zero length client-id, in particluar, could seriously
1318	    confuse dnsmasq 'till now. Thanks to Will Murname for help
1319	    with that.
1320
1321	    If a DHCP-allocated address has an associated name in
1322	    /etc/hosts, and the client does not provide a hostname
1323	    parameter and there is no hostname in a matching dhcp-host
1324	    option, send the /etc/hosts name as the hostname in
1325	    the DHCP lease. Thanks to Will Murname for the suggestion.
1326
1327version 2.20
1328	    Allow more than one instance of dnsmasq to run on a
1329	    machine, each providing DHCP service on a different
1330	    interface, provided that --bind-interfaces is set. This
1331	    configuration used to work, but regressed in version 2.14
1332
1333	    Fix compilation on Mac OS X. Thanks to Kevin Bullock.
1334
1335	    Protect against overlong names and overlong
1336	    labels in configuration and from DHCP.
1337
1338	    Fix interesting corner case in CNAME handling. This occurs
1339	    when a CNAME has a target which "shadowed" by a name in
1340	    /etc/hosts or from DHCP. Resolving the CNAME would sneak
1341	    the upstream value of the CNAME's target into the cache,
1342	    alongside the local value. Now that doesn't happen, though
1343	    resolving the CNAME still gives the unshadowed value. This
1344	    is arguably wrong but rather difficult to fix. The main
1345	    thing is to avoid getting strange results for the target
1346	    due to the cache pollution when resolving the
1347	    CNAME. Thanks to Pierre Habouzit for exploring the corner
1348	    and submitting a very clear bug report.
1349
1350	    Fix subtle bug in the DNS packet parsing code. It's almost
1351	    impossible to describe this succinctly, but the one known
1352	    manifestation is the inability to cache the A record for
1353	    www.apple.com. Thanks to Bob Alexander for spotting that.
1354
1355	    Support SRV records. Thanks to Robert Kean for the patches
1356	    for this.
1357
1358	    Fixed sign confusion in the vendor-id matching code which
1359	    could cause crashes sometimes. (Credit to Mark Wiater for
1360	    help finding this.)
1361
1362	    Added the ability to match the netid tag in a
1363	    dhcp-range. Combined with the ability to have multiple
1364	    ranges in a single subnet, this provides a means to
1365	    segregate hosts on different address ranges based on
1366	    vendorclass or userclass. Thanks to Mark Wiater for
1367	    prompting this enhancement.
1368
1369	    Added preference values for MX records.
1370
1371	    Added the --localise-queries option.
1372
1373version 2.21
1374            Improve handling of SERVFAIL and REFUSED errors. Receiving
1375	    these now initiates search for a new good server, and a
1376	    server which returns them is not a candidate as a good
1377            server. Thanks to Istvan Varadi for pointing out the
1378            problem.
1379
1380	    Tweak the time code in BROKEN_RTC mode.
1381
1382	    Sanity check lease times in dhcp-range and dhcp-host
1383	    configurations and force them to be at least two minutes
1384	    (120s) leases shorter than a minute confuse some clients,
1385	    notably Apple MacOS X. Rory Campbell-Lange found this
1386	    problem.
1387
1388	    Only warn once about an upstream server which is refusing to do
1389	    recursive queries.
1390
1391	    Fix DHCP address allocation problem when netid tags are in
1392	    use. Thanks to Will Murnane for the bug report and
1393	    subsequent testing.
1394
1395	    Add an additional data section to the reply for MX and SRV
1396	    queries. Add support for DNS TXT records. Thanks to Robert
1397	    Kean and John Hampton for prompts and testing of these.
1398
1399	    Apply address rewriting to records in the additional data section
1400	    of DNS packets. This makes things like MX records work
1401	    with the alias function. Thanks to Chad Skeeters for
1402	    pointing out the need for this.
1403
1404	    Added support for quoted strings in config file.
1405
1406	    Detect and defeat cache-poisoning attacks which attempt to
1407	    send (malicious) answers to questions we didn't
1408	    send. These are ignored now even if the attacker manages
1409	    to guess a random query-id.
1410
1411	    Provide DHCP support for interfaces with multiple IP
1412	    addresses or aliases. This in only enabled under Linux.
1413	    See the FAQ entry for details.
1414
1415	    Revisit the MAC-address and client-id matching code to
1416	    provide saner behaviour with PXE boots, where some
1417	    requests have a client-id and some don't.
1418
1419	    Fixed off-by-one buffer overflow in lease file reading
1420	    code. Thanks to Rob Holland for the bug report.
1421
1422	    Added wildcard matching for MAC addresses in dhcp-host
1423	    options. A sensible suggestion by Nathaniel McCallum.
1424
1425version 2.22
1426            Fixed build problems on (many) systems with older libc
1427            headers where <linux/types.h> is required before
1428            <linux/netlink.h>. Enabled HAVE_RTNETLINK under uclibc now
1429            that this fix is in place.
1430
1431	    Added support for encapsulated vendor-class-specific DHCP
1432	    options. Thanks to Eric Shattow for help with this.
1433
1434	    Fix regression in 2.21 which broke commas in filenames and
1435	    corrupted argv. Thanks to Eric Scott for the bugreport.
1436
1437	    Fixed stupid thinko which caused dnsmasq to wedge during
1438	    startup with certain MX-record options. Another 2.21 regression.
1439
1440	    Fixed broken-ness when reading /etc/ethers. 2.21 broke
1441	    this too.
1442
1443	    Fixed wedge with certain DHCP options. Yet another 2.21
1444	    regression. Rob Holland and Roy Marples chased this one
1445	    down.
1446
1447version 2.23
1448	    Added a check to ensure that there cannot be more than one
1449	    dhcp-host option for any one IP address, even if the
1450	    addresses are assigned indirectly via a hostname and
1451	    /etc/hosts.
1452
1453	    Include a "server identifier" in DHCPNAK replies, as
1454	    required by RFC2131.
1455
1456	    Added method  support for DBus
1457	    (http://www.freedesktop.org/Software/dbus)
1458	    This is a superior way to re-configure dnsmasq on-the-fly
1459	    with different upstream nameservers, as the host moves
1460	    between networks. DBus support must be enabled in
1461	    src/config.h and should be considered experimental at this
1462	    point. See DBus-interface for the specification of the
1463	    DBus method calls supported.
1464
1465	    Added information to the FAQ about setting the DNS domain
1466	    in windows XP and Mac OS X, thanks to Rick Hull.
1467
1468	    Added sanity check to resolv.conf polling code to cope
1469	    with backwards-moving clocks. Thanks to Leonardo Canducci
1470	    for	help with this.
1471
1472	    Handle so-called "A-for-A" queries, which are queries for
1473	    the address associated with a name which is already a
1474	    dotted-quad address. These should be handled by the
1475	    resolver code, but sometimes aren't and there's no point
1476	    in forwarding them.
1477
1478	    Added "no-dhcp-interface" option to disable DHCP service
1479            on an interface, whilst still providing DNS.
1480
1481	    Fix format-string problem - config file names get passed
1482	    to fprintf as a format string, so % characters could cause
1483	    crashes. Thanks to Rob Holland for sleuthing that one.
1484
1485	    Fixed multiple compiler warnings from gcc 4. Thanks to
1486	    Tim Cutts for the report.
1487
1488	    Send the hostname option on DHCP offer messages as well as
1489	    DHCP ack messages. This is required by the Rio Digital
1490	    Audio Receiver. Thanks to Ron Frederick for the patch.
1491
1492            Add 'd' (for day) as a possible time multiplier in lease
1493	    time specifications. Thanks to Michael Deegan.
1494
1495	    Make quoting suppress recognition of IP addresses, so
1496	    dhcp-option=66,1.2.3.4 now means something different to
1497            dhcp-option=66,"1.2.3.4", which sets the option to a
1498	    string value. Thanks to Brian Macauley for the bug report.
1499
1500	    Fixed the option parsing code to avoid segfaults from some
1501	    invalid configurations. Thanks to Wookey for spotting that one.
1502
1503            Provide information about which compile-time options were
1504	    selected, both in the log at startup and as part of the output
1505            from dnsmasq --version. Thanks to Dirk Schenkewitz for
1506            the suggestion.
1507
1508	    Fix pathalogical behaviour when a broken client keeps sending
1509            DHCPDISCOVER messages repeatedly and fast. Because dealing with
1510            each of these takes a few seconds, (because of the ping) then a
1511	    queue of DHCP packets could build up. Now, the results of a ping
1512            test are assumed to be valid for 30 seconds, so repeated waits are
1513            not required. Thanks to Luca Landi for finding this.
1514
1515	    Allow DHCPINFORM requests without hardware address
1516	    information. These are generated by some browsers, looking
1517	    for proxy information. Thanks to Stanley Jaddoe for the
1518	    bug report on that.
1519
1520	    Add support of the "client FQDN" DHCP option. If present,
1521	    this is used to allow the client to tell dnsmasq its name,
1522	    in preference to (mis)using the hostname option. See
1523              http://tools.ietf.org/wg/dhc/draft-ietf-dhc-fqdn-option/\
1524                draft-ietf-dhc-fqdn-option-10.txt
1525            for details of the draft spec.
1526
1527	    Added startup scripts for MacOS X Tiger/Panther to the
1528            contrib collection. Thanks to Tim Cutts.
1529
1530	    Tweak DHCP network selection so that clients which turn up
1531	    on our network in REBINDING state and with a lease for a
1532	    foreign network will get a NAK response. Thanks to Dan
1533	    Shechter for work on this and an initial patch and thanks
1534	    to Gyorgy Farkas for further testing.
1535
1536	    Fix DNS query forwarding for empty queries and forward
1537	    queries even when the recursion-desired bit is clear. This
1538	    allows "dig +trace" to work. Problem report from Uwe
1539	    Gansert.
1540
1541	    Added "const" declarations where appropriate, thanks to
1542	    Andreas Mohr for the patch.
1543
1544	    Added --bootp-dynamic option and associated
1545	    functionality. Thanks to Josef Wolf for the suggestion.
1546
1547version 2.24
1548            Updated contrib/openvpn/dnsmasq.patch from Joseph Tate.
1549
1550	    Tweaked DHCP NAK code, a DHCP NAK is now unicast as a
1551	    fallback in cases where a broadcast is futile: namely in
1552	    response to a unicast REQUEST from a non-local network
1553	    which was not sent via a relay.
1554
1555	    Slightly changed the semantics of domain matching in
1556	    --server and --address configs. --server=/domain.com/ still
1557	    matches domain.com and sub.domain.com but does not
1558	    now match newdomain.com The semantics of
1559            --server=/.domain.com/ are unchanged.
1560	    Thanks to Chris Blaise for the patch.
1561
1562	    Added backwards-compatible internationalisation support.
1563	    The existing make targets, (all, dnsmasq, install) work as
1564	    before. New ones (all-i18n, and install-i18n) add gettext.
1565	    The translations live in po/ There are not too many
1566	    strings, so if anybody can provide translations (and for
1567	    the manpage....) please send them in.
1568
1569	    Tweak behaviour on receipt of REFUSED or SERVFAIL rcodes,
1570	    now the query gets retried on all servers before returning
1571	    the error to the source of the query. Thanks to Javier
1572	    Kohen for the report.
1573
1574	    Added Polish translation - thanks to Tomasz Sochanski.
1575
1576	    Changed default manpage install location from /usr/man
1577	    to /usr/share/man
1578
1579	    Added Spanish translation - thanks to Christopher Chatham.
1580
1581	    Log a warning when a DHCP packet is truncated due to lack
1582	    of space. (Thanks to Michael Welle for the prompt to do
1583	    this.)
1584
1585	    Added French translation - thanks to Lionel Tricon.
1586
1587	    Added Indonesian translation - thanks to Salman AS.
1588
1589	    Tweaked the netlink code to cope with interface broadcast
1590	    address not set, or set to 0.0.0.0.
1591
1592	    Fixed problem assigning fixed addresses to hosts when more
1593	    than one dhcp-range is available. Thanks to Sorin Panca
1594	    for help chasing this down.
1595
1596	    Added more explict error mesages to the hosts file and
1597	    ethers file reading code. Markus Kaiserswerth suffered to
1598	    make this happen.
1599
1600	    Ensure that a hostname supplied by a DHCP client can never
1601	    override one configured on the server. Previously, any
1602	    host claiming a name would be given it, even if that
1603	    over-rode a dhcp-host declaration, leading to potentially
1604            confusing situations.
1605
1606	    Added Slackware package-build stuff into contrib/ The i18n
1607	    effort broke the current scripts, and working ones were
1608	    needed for testing, so they ended up here rather than make
1609	    Pat re-invent the wheel.
1610
1611	    Added Romanian translation, thanks to Sorin Panca for
1612	    that.
1613
1614version 2.25
1615            Fixed RedHat spec file for FC4 - thanks to Werner Hoelzl
1616            and Andrew Bird.
1617
1618            Fixed Suse spec file - thanks to Steven Springl.
1619
1620	    Fixed DHCP bug when two distict subnets are on the same
1621	    physical interface. Thanks to Pawel Zawora for finding
1622	    this and suggesting the fix.
1623
1624	    Added logging to make it explicit when dnsmasq falls back
1625	    from using RT-netlink sockets to the old ioctl API for
1626	    getting information about interfaces. Doing this
1627	    completely silently made remote debugging hard.
1628
1629	    Merged uclibc build fixes from the OpenWRT package into
1630	    src/config.h
1631
1632	    Added Norwegian translation - thanks to Jan Erik Askildt.
1633
1634version 2.26
1635	    Fixed SuSe rpm patch problem - thanks to Steven Springl.
1636
1637	    Fixed crash when attempting to send a DHCP NAK to a host
1638	    which believes it has a lease on an unknown
1639	    network. Thanks to Lutz Pressler for the bug report and
1640	    patch.
1641
1642version 2.27
1643	    Tweaked DHCP behaviour when a client attempts to renew a lease
1644            which dnsmasq doesn't know about. Previously that would always
1645            result in a DHCPNAK. Now, in dhcp-authoritative mode, the
1646            lease will be created, if it's legal. This makes dnsmasq work
1647            better if the lease database is lost, for example on an OpenWRT
1648	    system which reboots. Thanks to Stephen Rose for work on
1649	    this.
1650
1651	    Added the ability to support RFC-3442 style destination
1652	    descriptors in dhcp-options. This makes classless static
1653	    routes easy to do, eg dhcp-option=121,192.168.1.0/24,1.2.3.4
1654
1655	    Added error-checking to the code which writes the lease
1656	    file. If this fails for any reason, an error is logged,
1657	    and a retry occurs after one minute. This should improve
1658	    things eg when a filesystem is full. Thanks to Jens Holze
1659	    for the bug report.
1660
1661	    Fixed breakage of the "/#/ matches any domain" facility
1662	    which happened in 2.24. Thanks to Peter Surda for the bug
1663	    report.
1664
1665	    Use "size_t" and "ssize_t" types where appropriate in the
1666	    code.
1667
1668	    Fix buggy CNAME handling in mixed IPv4 and IPv6
1669	    queries. Thanks to Andreas Pelme for help finding that.
1670
1671	    Added some code to attempt to re-transmit DNS queries when
1672	    a network interface comes up.  This helps on DoD links,
1673	    where frequently the packet which triggers dialling is
1674            a DNS query, which then gets lost. By re-sending, we can
1675	    avoid the lookup failing. This function is only active
1676	    when netlink support is compiled in, and therefore only
1677	    under Linux. Thanks to Jean Wolter for help with this.
1678
1679	    Tweaked the DHCP tag-matching code to work correctly with
1680	    NOT-tag conditions. Thanks to Lutz Pressler for finding
1681	    the bug.
1682
1683	    Generalised netid-tag matching in dhcp-range statements to
1684	    allow more than one tag.
1685
1686	    Added --dhcp-mac to do MAC address matching in the same
1687	    way as vendorclass and userclass matching. A good
1688	    suggestion from Lutz Pressler.
1689
1690	    Add workaround for buggy early Microsoft DHCP clients
1691	    which need zero-termination in string options.
1692	    Thanks to Fabiano Pires for help with this.
1693
1694	    Generalised the DHCP code to cope with any hardware
1695	    address type, at least on Linux. *BSD is still limited to
1696	    ethernet only.
1697
1698version 2.28
1699            Eliminated all raw network access when running on
1700            Linux. All DHCP network activity now goes through the IP
1701            stack. Packet sockets are no longer required. Apart from
1702            being a neat hack, this should also allow DHCP over IPsec
1703            to work better. On *BSD and OS X, the old method of raw net
1704            access through BPF is retained.
1705
1706	    Simplified build options. Networking is now slimmed down
1707	    to a choice of "linux" or "other". Netlink is always used
1708	    under Linux. Since netlink has been available since 2.2
1709	    and non-optional in an IPv4-configured  kernel since 2.4,
1710	    and the dnsmasq netlink code is now well tested, this
1711	    should work out fine.
1712
1713	    Removed decayed build support for libc5 and Solaris.
1714
1715	    Removed pselect code: use a pipe for race-free signal
1716	    handling instead, as this works everywhere.
1717
1718	    No longer enable the ISC leasefile reading code in the
1719	    distributed sources. I doubt there are many people left
1720	    using this 1.x compatibility code. Those that are will
1721	    have to explicitly enable it in src/config.h.
1722
1723	    Don't send the "DHCP maximum message size" option, even if
1724	    requested. RFC2131 says this is a "MUST NOT".
1725
1726	    Support larger-than-minimum DHCP message. Dnsmasq is now
1727	    happy to get larger than 576-byte DHCP messages, and will
1728	    return large messages, if permitted by the "maximum
1729	    message size" option of the message to which it is
1730	    replying. There's now an arbitrary sanity limit of 16384
1731	    bytes.
1732
1733	    Added --no-ping option. This fixes an RFC2131 "SHOULD".
1734
1735	    Building on the 2.27 MAC-address changes, allow clients to
1736	    provide no MAC address at all, relying on the client-id as
1737	    a unique identifier. This should make things like DHCP for
1738	    USB come easier.
1739
1740	    Fixed regression in netlink code under 2.2.x kernels which
1741	    occurred in 2.27. Erik Jan Tromp is the vintage kernel fan
1742	    who found this. P.S. It looks like this "netlink bind:
1743	    permission denied" problem occured in kernels at least as
1744	    late a 2.4.18. Good information from Alain Richoux.
1745
1746	    Added a warning when it's impossible to give a host its
1747	    configured address because the address is leased
1748	    elsewhere.  A sensible suggestion from Mircea Bardac.
1749
1750	    Added minimal support for RFC 3046 DHCP relay agent-id
1751	    options. The DHCP server now echoes these back to the
1752	    relay, as required by the RFC. Also, RFC 3527 link selection
1753	    sub-options are honoured.
1754
1755	    Set the process "dumpable" flag when running in debug
1756	    mode: this makes getting core dumps from root processes
1757	    much easier.
1758
1759	    Fixed one-byte buffer overflow which seems to only cause
1760	    problems when dnsmasq is linked with uclibc. Thanks to
1761	    Eric House and Eric Spakman for help in chasing this down.
1762
1763	    Tolerate configuration screwups which lead to the DHCP
1764	    server attemping to allocate its own address to a
1765	    client; eg setting the whole subnet range as a DHCP
1766	    range. Addresses in use by the server are now excluded
1767	    from use by clients.
1768
1769	    Did some thinking about HAVE_BROKEN_RTC mode, and made it
1770	    much simpler and better. The key is to just keep lease
1771	    lengths in the lease file. Since these normally never
1772	    change, even as the lease is renewed, the lease file never
1773	    needs to change except when machines arrive on the network
1774	    or leave. This eliminates the code for timed writes, and
1775	    reduces the amount of wear on a flash filesystem to the
1776	    absolute minimum. Also re-did the basic time function in
1777	    this mode to use the portable times(), rather than parsing
1778	    /proc/uptime.
1779
1780	    Believe the source port number when replying to unicast
1781	    DHCP requests and DHCP requests via a relay, instead of always
1782            using the standard ports.  This will allow relays on
1783            non-standard ports and DHCPINFORM from unprivileged ports
1784            to work. The source port sent by unconfigured clients is still
1785            ignored, since this may be unreliable. This means that a DHCP
1786            client must use the standard port to do full configuration.
1787
1788version 2.29
1789	    Fixed compilation on OpenBSD (thanks to Tom Hensel for the
1790	    report).
1791
1792	    Fixed false "no interface" errors when --bind-interfaces is
1793	    set along with --interface=lo or --listen-address. Thanks
1794	    to Paul Wise for the report.
1795
1796	    Updated patch for SuSE rpm. Thanks to Steven Springl.
1797
1798	    It turns out that there are some Linux kernel
1799	    configurations which make using the capability system
1800	    impossible. If this situation occurs then continue, running
1801	    as root, and log a warning. Thanks to Scott Wehrenberg
1802	    for help tracking this down.
1803
1804version 2.30
1805            Fixed crash when a DHCP client requested a broadcast
1806            reply. This problem was introduced in version 2.28.
1807	    Thanks to Sandra Dekkers for the bug report.
1808
1809version 2.31
1810	    Added --dhcp-script option. There have been calls for this
1811	    for a long time from many good people. Fabio Muzzi gets
1812	    the prize for finally convincing me.
1813
1814	    Added example dbus config file and moved dbus stuff into
1815	    its own directory.
1816
1817	    Removed horribly outdated Redhat RPM build files. These
1818	    are obsolete now that dnsmasq in in Fedora extras. Thanks
1819	    to Patrick "Jima" Laughton, the Fedora package
1820	    maintainer.
1821
1822	    Added workaround for Linux kernel bug. This manifests
1823	    itself as failure of DHCP on kernels with "support for
1824	    classical IP over ATM" configured. That includes most
1825	    Debian kernel packages. Many thanks to A. Costa and
1826	    Benjamin Kudria for their huge efforts in chasing this
1827	    down.
1828
1829	    Force-kill child processes when dnsmasq is sent a sigterm,
1830	    otherwise an unclosed TCP connection could keep dnsmasq
1831	    hanging round for a few minutes.
1832
1833	    Tweaked config.h logic for uclibc build. It will now pick
1834	    up MMU and IPV6 status correctly on every system I tested.
1835
1836version 2.32
1837	    Attempt a better job of replacing previous configuration
1838	    when re-reading /etc/hosts and /etc/ethers. SIGHUP is
1839	    still not identical to a restart under all circumstances,
1840	    but it is for the common case of name->MAC address in
1841	    /etc/ethers and name->IP address in /etc/hosts.
1842
1843	    Fall back to broadcast for DHCP to an unconfigured client
1844	    when the MAC address size is greater than 14 bytes.
1845
1846	    Fix problem in 2.28-onwards releases which breaks DNS on
1847	    Mac OS X. Thanks to Doug Fields for the bug report and
1848	    testing.
1849
1850	    Added fix to allow compilation on c89-only compilers.
1851	    Thanks to John Mastwijk for the patch.
1852
1853	    Tweak resolv file polling code to work better if there is
1854	    a race between updating the mtime and file contents. This
1855	    is not normally a problem, but it can be on systems which
1856	    replace nameservers whilst active. The code now continues
1857	    to read resolv.conf until it gets at least one usable
1858	    server. Thanks to Holger Mauermann for help with this.
1859
1860	    If a client DECLINEs an address which is allocated to it
1861	    via dhcp-host or /etc/hosts, lock that address out of use
1862	    for ten minutes, instead of forever, and log when it's not
1863	    being used because of the lock-out. This should provide
1864	    less surprising behaviour when a configured address can't be
1865	    used. Thanks to Peter Surda and Heinz Deinhart for input
1866	    on this.
1867
1868	    Fixed *BSD DHCP breakage with only some
1869	    arches/compilers, depending on structure padding rules.
1870	    Thanks to Jeb Campbell and Tom Hensel for help with this.
1871
1872	    Added --conf-dir option. Suggestion from Aaron Tygart.
1873
1874	    Applied patch from Brent Cook which allows netids in
1875	    dhcp-option configuration lines to be prefixed by
1876	    "net:". This is not required by the syntax, but it is
1877	    consistent with other configuration items.
1878
1879	    Added --log-facility option. Suggestion from Fabio Muzzi.
1880
1881	    Major update to Spanish translation. Many thanks to Chris
1882	    Chatham.
1883
1884	    Fixed gcc-4.1 strict-alias compilation warning.
1885
1886version 2.33
1887            Remove bash-specific shellcode from the Makefile.
1888
1889	    Fix breakage with some DHCP relay implementations which
1890	    was introduced in 2.28. Believing the source port in
1891	    DHCP requests and sending the reply there is sometimes a
1892	    bad thing to do, so I've reverted to always sending to
1893	    the relay on port 68. Thanks to Daniel Hamlin and Alex
1894	    (alde) for bug reports on this.
1895
1896	    Moved the SuSe packaging files to contrib. I will no
1897	    longer attempt to maintain this in the source tarball. It
1898	    will be done externally, in the same way as packaging for
1899	    other distros. Suse packages are available from
1900	    ftp://ftp.suse.com/pub/people/ug/
1901
1902	    Merged patch from Gentoo to honour $LDFLAGS environment.
1903
1904	    Fix bug in resolv.conf processing when more than one file
1905	    is being checked.
1906
1907	    Add --dns-forward-max option.
1908
1909	    Warn if --resolv-file flags are ignored because of
1910	    --no-resolv. Thanks to Martin F Krafft for spotting this
1911	    one.
1912
1913            Add --leasefile-ro option which allows the use of an
1914            external lease database. Many thanks to Steve Horbachuk
1915	    for assistance developing this feature.
1916
1917	    Provide extra information to lease-change script via its
1918	    environment. If the host has a client-id, then
1919	    DNSMASQ_CLIENT_ID will be set. Either the lease length (in
1920	    DNSMASQ_LEASE_LENGTH) or lease expiry time (in
1921	    DNSMASQ_LEASE_EXPIRES) will be set, depending on the
1922	    HAVE_BROKEN_RTC compile-time option. This extra
1923	    information should make it possible to maintain the lease
1924	    database in external storage such as LDAP or a relational
1925	    database. Note that while leasefile-ro is set, the script
1926            will be called with "old"  events more often, since
1927	    changes to the client-id and lease length
1928	    (HAVE_BROKEN_RTC) or lease expiry time (otherwise)
1929	    are now flagged.
1930
1931	    Add contrib/wrt/* which is an example implementation of an
1932	    external persistent lease database for *WRT distros with
1933	    the nvram command.
1934
1935	    Add contrib/wrt/dhcp_release.c which is a small utility
1936	    which removes DHCP leases using DHCPRELEASE operation in
1937	    the DHCP protocol.
1938
1939version 2.34
1940	    Tweak network-determination code for another corner case:
1941	    in this case a host forced to move between dhcp-ranges on
1942	    the same physical interface. Thanks to Matthias Andree.
1943
1944	    Improve handling of high DNS loads by throttling acceptance of
1945	    new queries when resources are tight. This should be a
1946	    better response than the "forwarding table full..."
1947	    message which was logged before.
1948
1949	    Fixed intermittent infinite loop when re-reading
1950	    /etc/ethers after SIGHUP. Thanks to Eldon Ziegler for the
1951	    bug report.
1952
1953	    Provide extra information to the lease-change script: when
1954	    a lease loses its hostname (because a new lease comes
1955	    along and claims the same new), the "old" action is called
1956	    with the current state of the lease, ie no name. The
1957	    change is to provide the former name which the lease had
1958	    in the environment variable DNSMASQ_OLD_HOSTNAME. This
1959	    helps scripts which do stuff based on hostname, rather
1960	    than IP address. Also provide vendor-class and user-class
1961	    information to the lease-change script when a new lease is
1962	    created in the DNSMASQ_VENDOR_CLASS and
1963	    DNSMASQ_USER_CLASS<n> environment variables. Suggestion
1964            from Francois-Xavier Le Bail.
1965
1966	    Run the lease change script as root, even when dnsmasq is
1967	    configured to change UID to an unprivileged user. Since
1968	    most uses of the lease change script need root, this
1969	    allows its use whilst keeping the security advantages of
1970	    running the daemon without privs. The script is invoked
1971	    via a small helper process which keeps root UID, and
1972	    validates all data received from the main process. To get
1973	    root, an attacker would have to break dnsmasq and then
1974	    break the helper through the restricted comms channel
1975	    linking the two.
1976
1977	    Add contrib/port-forward/* which is a script to set up
1978	    port-forwards using the DHCP lease-change script. It's
1979	    possible to add a host to a config file by name, and when
1980	    that host gets a DHCP lease, the script will use iptables
1981	    to set up port-forwards to configured ports at the address
1982	    which the host is allocated. The script also handles
1983	    setting up the port-forward iptables entries after reboot,
1984	    using the persistent lease database, and removing them
1985	    when a host leaves and its DHCP lease expires.
1986
1987	    Fix unaligned access problem which caused wrong log
1988	    messages with some clients on some architectures. Thanks
1989	    to Francois-Xavier Le Bail for the bugreport.
1990
1991	    Fixed problem with DHCPRELEASE and multi-address
1992	    interfaces. Enhanced contrib/wrt/dhcp_release to cope
1993	    under these circumstances too. Thanks to Eldon Ziegler for
1994	    input on this.
1995
1996	    Updated French translation: thanks to Gildas Le Nadan.
1997
1998	    Upgraded the name hash function in the DNS cache. Thanks
1999	    to Oleg Khovayko for good work on this.
2000
2001	    Added --clear-on-reload flag.  Suggestion from Johannes
2002	    Stezenbach.
2003
2004	    Treat a nameserver address of 0.0.0.0 as "nothing". Erwin
2005            Cabrera spotted that specifying a nameserver as 0.0.0.0
2006	    breaks things badly; this is because the network stack
2007	    treats is as "this host" and an endless loop ensues.
2008
2009            Added Webmin module in contrib/webmin. Thanks to Neil
2010            Fisher for that.
2011
2012version 2.35
2013	    Generate an "old" script event when a client does a DHCPREQUEST
2014	    in INIT-REBOOT or SELECTING state and the lease already
2015	    exists. Supply vendor and user class information to these
2016	    script calls.
2017
2018	    Added support for Dragonfly BSD to src/config.h
2019
2020	    Removed "Upgrading to 2.0" document, which is ancient
2021	    history now.
2022
2023	    Tweak DHCP networking code for BSD, esp OpenBSD. Added a
2024	    workaround for a bug in OpenBSD 4.0: there should finally
2025            be support for multiple interfaces under OpenBSD now.
2026	    Note that no version of dnsmasq before 2.35 will work for
2027	    DHCP under OpenBSD 4.0 because of a kernel bug.
2028	    Thanks to Claudio Jeker, Jeb Campbell and Cristobal
2029	    Palmer for help with this.
2030
2031	    Optimised the cache code for the case of large
2032	    /etc/hosts. This is mainly to remove the O(n-squared)
2033	    algorithm which made reading large (50000 lines) files
2034	    slow, but it also takes into account the size of
2035	    /etc/hosts when building hash tables, so overall
2036	    performance should be better. Thanks to "koko" for
2037	    pointing out the problem.
2038
2039version 2.36
2040	    Added --dhcp-ignore-names flag which tells dnsmasq not to
2041	    use names provided by DHCP clients. Suggestion from
2042	    Thomas M Steenholdt.
2043
2044	    Send netmask and broadcast address DHCP options always,
2045	    even if the client doesn't request them. This makes a few
2046	    odd clients work better.
2047
2048	    Added simple TFTP function, optimised for net-boot. It is
2049	    now possible to net boot hosts using only dnsmasq. The
2050	    TFTP server is read-only, binary-mode only, and designed to be
2051	    secure; it adds about 4K to the dnsmasq binary.
2052
2053	    Support DHCP option 120, SIP servers, (RFC 3361). Both
2054            encodings are supported, so both --dhcp-option=120,192.168.2.3
2055            and	--dhcp-option=120,sip.example.net will work. Brian
2056            Candler pointed out the need for this.
2057
2058	    Allow spaces in domain names, to support DNS-SD.
2059
2060	    Add --ptr-record flag, again for DNS-SD. Thanks to Stephan
2061	    Sokolow for the suggestion.
2062
2063	    Tolerate leading space on lines in the config file. Thanks
2064	    to Luigi Rizzo for pointing this out.
2065
2066	    Fixed netlink.c to cope with headers from the Linux 2.6.19
2067	    kernel. Thanks to Philip Wall for the bug report.
2068
2069	    Added --dhcp-bridge option, but only to the FreeBSD
2070	    build. This fixes an oddity with a a particular bridged
2071	    network configuration on FreeBSD. Thanks to Luigi Rizzo
2072	    for the patch.
2073
2074	    Added FAQ entry about running dnsmasq in a Linux
2075	    vserver. Thanks to Gildas le Nadan for the information.
2076
2077	    Fixed problem with option parsing which interpreted "/" as
2078	    an address and not a string. Thanks to Luigi Rizzo
2079	    for the patch.
2080
2081	    Ignore the --domain-needed flag when forwarding NS
2082	    and SOA queries, since NS queries of TLDs are always legit.
2083	    Marcus Better pointed out this problem.
2084
2085	    Take care to forward signed DNS requests bit-perfect, so
2086	    as not to affect the validity of the signature. This
2087	    should allow DDNS updates to be forwarded.
2088
2089version 2.37
2090            Add better support for RFC-2855 DHCP-over-firewire and RFC
2091           -4390 DHCP-over-InfiniBand. A good suggestion from Karl Svec.
2092
2093	    Some efficiency tweaks to the cache code for very large
2094	    /etc/hosts files. Should improve reverse (address->name)
2095	    lookups and garbage collection. Thanks to Jan 'RedBully'
2096	    Seiffert for input on this.
2097
2098	    Fix regression in 2.36 which made bogus-nxdomain
2099	    and DNS caching unreliable. Thanks to Dennis DeDonatis
2100	    and Jan Seiffert for bug reports.
2101
2102	    Make DHCP encapsulated vendor-class	options sane. Be
2103	    warned that some conceivable existing configurations
2104	    using these may break, but they work in a much
2105	    simpler and more logical way now. Prepending
2106	    "vendor:<client-id>" to an option encapsulates it
2107	    in option 43, and the option is sent only if the
2108	    client-supplied vendor-class substring-matches with
2109	    the given client-id. Thanks to Dennis DeDonatis for
2110	    help with this.
2111
2112	    Apply patch from Jan Seiffert to tidy up tftp.c
2113
2114	    Add support for overloading the filename and servername
2115	    fields in DHCP packet. This gives extra option-space when
2116	    these fields are not being used or with a modern client
2117	    which supports moving them into options.
2118
2119	    Added a LIMITS section to the man-page, with guidance on
2120	    maximum numbers of clients, file sizes and tuning.
2121
2122release 2.38
2123	    Fix compilation on *BSD. Thanks to Tom Hensel.
2124
2125	    Don't send length zero DHCP option 43 and cope with
2126	    encapsulated options whose total length exceeds 255 octets
2127	    by splitting them into multiple option 43 pieces.
2128
2129	    Avoid queries being retried forever when --strict-order is
2130	    set and an upstream server returns a SERVFAIL
2131	    error. Thanks to Johannes Stezenbach for spotting this.
2132
2133	    Fix BOOTP support, broken in version 2.37.
2134
2135	    Add example dhcp-options for Etherboot.
2136
2137	    Add \e (for ASCII ESCape) to the set of valid escapes
2138	    in config-file strings.
2139
2140	    Added --dhcp-option-force flag and examples in the
2141	    configuration file which use this to control PXELinux.
2142
2143	    Added --tftp-no-blocksize option.
2144
2145	    Set netid tag "bootp" when BOOTP (rather than DHCP) is in
2146	    use. This makes it easy to customise which options are
2147	    sent to BOOTP clients. (BOOTP allows only 64 octets for
2148	    options, so it can be necessary to trim things.)
2149
2150	    Fix rare hang in cache code, a 2.37 regression. This
2151	    probably needs an infinite DHCP lease and some bad luck to
2152	    trigger. Thanks to Detlef Reichelt for bug reports and testing.
2153
2154release 2.39
2155	    Apply patch from Mike Baker/OpenWRT to ensure that names
2156	    like "localhost." in /etc/hosts with trailing period
2157	    are treated as fully-qualified.
2158
2159	    Tolerate and ignore spaces around commas in the
2160	    configuration file in all circumstances. Note that this
2161	    may change the meaning of a few existing config files, for
2162	    instance
2163	    txt-record=mydomain.com, string
2164	    would have a leading space in the string before, and now
2165	    will not. To get the old behaviour back, use quotes:
2166	    txt-record=mydomain.com," string"
2167
2168	    /a is no longer a valid escape in quoted strings.
2169
2170	    Added symbolic DHCP option names. Instead of
2171	    dhcp-option = 3, 1.2.3.4
2172	    it is now possible to do
2173	    dhcp-option = option:router, 1.2.3.4
2174	    To see the list of known DHCP options, use the
2175            command "dnsmasq --help dhcp"
2176	    Thanks to Luigi Rizzo for a patch and good work on this.
2177
2178	    Overhauled the log code so that logging can be asynchronous;
2179	    dnsmasq then no longer blocks waiting for the syslog() library
2180	    call. This is important on systems where syslog
2181	    is being used to log over the network (and therefore doing
2182	    DNS lookups) and syslog is using dnsmasq as its DNS
2183	    server. Having dnsmasq block awaiting syslog under
2184	    such circumstances can lead to syslog and dnsmasq
2185	    deadlocking. The new behaviour is enabled with a new
2186	     --log-async flag, which can also be used to tune the
2187	    queue length. Paul Chambers found and diagnosed
2188	    this trap for the unwary. He also did much testing of
2189	    the solution along with Carlos Carvalho.
2190
2191	    --log-facility can now take a file-name instead of a
2192	    facility name. When this is done, dnsmasq logs to the
2193	    file and not via syslog. (Failures early in startup,
2194	    whilst reading configuration, will still go to syslog,
2195	    and syslog is used as a log-of-last-resort if the file
2196	    cannot be written.)
2197
2198	    Added --log-dhcp flag. Suggestion from Carlos Carvalho.
2199
2200	    Made BINDIR, MANDIR and LOCALEDIR independently
2201	    over-rideable in the makefile. Suggestion from Thomas
2202	    Klausner.
2203
2204	    Added 127.0.0.0/8 and 169.254.0.0/16 to the address
2205	    ranges affected by --bogus-priv. Thanks to  Paul
2206	    Chambers for the patch.
2207
2208	    Fixed failure of TFTP server with --listen-address. Thanks
2209	    to William Dinkel for the bug report.
2210
2211	    Added --dhcp-circuitid and --dhcp-remoteid for RFC3046
2212	    relay agent data matching.
2213
2214	    Added --dhcp-subscrid for RFC3993 subscriber-id relay
2215	    agent data matching.
2216
2217	    Correctly garbage-collect connections when upstream
2218	    servers go away as a result of DBus transactions.
2219
2220	    Allow absolute paths for TFTP transfers even when
2221	    --tftp-root is set, as long as the path matches the root,
2222	    so /var/ftp/myfile is OK with tftp-root=/var/ftp.
2223	    Thanks for Thomas Mizzi for the patch.
2224
2225	    Updated Spanish translation - thanks to Chris Chatham.
2226
2227	    Updated French translation - thanks to Gildas Le Nadan.
2228
2229	    Added to example conf file example of routing PTR queries
2230	    for a subnet to a different nameserver. Suggestion from
2231	    Jon Nicholson.
2232
2233	    Added --interface-name option. This provides a facility
2234	    to add a domain name with a dynamic IP address taken from
2235	    the address of a local network interface. Useful for
2236	    networks with dynamic IPs.
2237
2238version 2.40
2239            Make SIGUSR2 close-and-reopen the logfile when logging
2240	    direct to a file. Thanks to Carlos Carvalho for
2241	    suggesting this. When a logfile is created, change
2242	    its ownership to the user dnsmasq will run as, don't
2243	    leave it owned by root.
2244
2245	    Set a special tag, "known" for hosts which are matched by
2246	    a dhcp-host or /etc/ethers line. This is especially
2247	    useful to be able to do --dhcp-ignore=#known, like ISCs
2248	    "deny unknown-clients".
2249
2250	    Explicitly set a umask before creating the leases file,
2251	    rather than relying on whatever we inherited. The
2252	    permissions	are set to 644.
2253
2254	    Fix handling of fully-qualified names in --dhcp-host
2255	    directives and in /etc/ethers. These are now rejected
2256	    if the domain doesn't match that given by --domain,
2257	    and used correctly otherwise. Before, putting
2258	    a FQDN here could cause the whole FQDN to be used as
2259	    hostname. Thanks to Michael Heimpold for the bug report.
2260
2261	    Massive but trivial edit to make the "daemon" variable
2262	    global, instead of copying the same value around as the
2263	    first argument to half the functions in the program.
2264
2265	    Updated Spanish manpage and message catalog. Thanks
2266	    to Chris Chatham.
2267
2268	    Added patch for support of DNS LOC records in
2269	    contrib/dns-loc. Thanks to Lorenz Schori.
2270
2271	    Fixed error in manpage: dhcp-ignore-name ->
2272	    dhcp-ignore-names. Thanks to Daniel Mentz for spotting
2273	    this.
2274
2275	    Use client-id as hash-seed for DHCP address allocation
2276	    with Firewire and Infiniband, as these don't supply an MAC
2277	    address.
2278
2279	    Tweaked TFTP file-open code to make it behave sensibly
2280	    when the filesystem changes under its feet.
2281
2282	    Added DNSMASQ_TIME_REMAINING environment variable to the
2283	    lease-script.
2284
2285	    Always send replies to DHCPINFORM requests to the source
2286	    of the request and not to the address in ciaddr. This
2287	    allows third-party queries.
2288
2289	    Return "lease time remaining" in the reply to a DHCPINFORM
2290	    request if there exists a lease for the host sending the
2291	    request.
2292
2293	    Added --dhcp-hostsfile option. This gives a superset of
2294	    the functionality provided by /etc/ethers. Thanks to
2295	    Greg Kurtzer for the suggestion.
2296
2297	    Accept keyword "server" as a synonym for "nameserver" in
2298	    resolv.conf. Thanks to Andrew Bartlett for the report.
2299
2300	    Add --tftp-unique-root option. Suggestion from Dermot
2301	    Bradley.
2302
2303	    Tweak TFTP retry timer to avoid problems with difficult
2304	    clients. Thanks to Dermot Bradley for assistance with
2305	    this.
2306
2307	    Continue to use unqualified hostnames provided by DHCP
2308	    clients, even if the domain part is illegal. (The domain
2309	    is	ignored, and an error logged.) Previously in this
2310	    situation, the whole name whould have been
2311	    rejected. Thanks to Jima for the patch.
2312
2313	    Handle EINTR returns from wait() correctly and reap
2314	    our children's children if necessary. This fixes
2315	    a problem with zombie-creation under *BSD when using
2316	    --dhcp-script.
2317
2318	    Escape spaces in hostnames when they are stored in the
2319	    leases file and passed to the lease-change
2320	    script. Suggestion from Ben Voigt.
2321
2322	    Re-run the lease chamge script with an "old" event for
2323	    each lease when dnsmasq receives a SIGHUP.
2324
2325	    Added more useful exit codes, including passing on a
2326	    non-zero exit code from the lease-script "init" call when
2327	    --leasefile-ro is set.
2328
2329	    Log memory allocation failure whilst the daemon is
2330	    running. Allocation failures during startup are fatal,
2331	    but lack of memory whilst running is worked around.
2332	    This used to be silent, but now is logged.
2333
2334	    Fixed misaligned memory access which caused problems on
2335	    Blackfin CPUs. Thanks to Alex Landau for the patch.
2336
2337	    Don't include (useless) script-calling code when NO_FORK
2338	    is set. Since this tends to be used on very small uclinux
2339	    systems, it's worth-while to save some code-size.
2340
2341	    Don't set REUSEADDR on TFTP listening socket. There's no
2342	    need to do so, and it creates confusing behaviour when
2343	    inetd is also listening on the same port. Thanks to Erik
2344	    Brown for spotting the problem.
2345
2346version 2.41
2347            Remove deprecated calls when compiled against libdbus 1.1.
2348
2349	    Fix "strict-alias" warning in bpf.c
2350
2351	    Reduce dependency on Gnu-make in build system: dnsmasq now
2352	    builds with system make under OpenBSD.
2353
2354	    Port to Solaris. Dnsmasq 1.x used to run under Solaris,
2355	    and this release does so again, for Solaris 9 or better.
2356
2357	    Allow the DNS function to be completely disabled, by
2358	    setting the port to zero "--port=0". The allows dnsmasq to
2359	    be used as a simple DHCP server, simple TFTP server, or
2360	    both, but without the DNS server getting in the way.
2361
2362	    Fix a bug where NXDOMAIN could be returned for a query
2363	    even if the name's value was known for a different query
2364	    type. This bug could be prodded with
2365            --local=/domain/ --address=/name.domain/1.2.3.4
2366	    An IPv6 query for name.domain would return NXDOMAIN, and
2367	    not the correct NOERROR. Thanks to Lars Nooden for
2368	    spotting the bug and Jima for diagnosis of the problem.
2369
2370	    Added per-server stats to the information logged when
2371	    dnsmasq gets SIGUSR1.
2372
2373	    Added counts of queries forwarded and queries answered
2374	    locally (from the cache, /etc/hosts or config).
2375
2376	    Fixed possible crash bug in DBus IPv6 code. Thanks to Matt
2377	    Domsch and Jima.
2378
2379	    Tighten checks for clashes between hosts-file and
2380	    DHCP-derived names. Multiple addresses associated with a
2381	    name in hosts-file no longer confuses the check.
2382
2383	    Add --dhcp-no-override option to fix problems with some
2384	    combinations of stage zero and stage one
2385	    bootloaders. Thanks to Steve Alexander for the bug report.
2386
2387	    Add --tftp-port-range option. Thanks to Daniel Mierswa for
2388	    the suggestion.
2389
2390	    Add --stop-dns-rebind option. Thanks to Collin Mulliner
2391	    for the patch.
2392
2393	    Added GPL version 3 as a license option.
2394
2395	    Added --all-servers option. Thanks to Peter Naulls for the
2396	    patch.
2397
2398	    Extend source address mechanism so that the interface used
2399	    to contact an upstream DNS server can be nailed
2400	    down. Something like "--server=1.2.3.4@eth1" will force
2401	    the use of eth1 for traffic to DNS-server 1.2.3.4. This
2402	    facility is only available on Linux and Solaris. Thanks to
2403	    Peter Naulls for prompting this.
2404
2405	    Add --dhcp-optsfile option. Thanks to Carlos Carvalho for
2406            the suggestion.
2407
2408	    Fixed failure to set source address for server connections
2409	    when using TCP. Thanks to Simon Capper for finding this
2410	    bug.
2411
2412	    Refuse to give a DHCP client the address it asks for if
2413	    the address range in question is not available to that
2414	    particular host. Thanks to Cedric Duval for the bug
2415	    report.
2416
2417	    Changed behavior of DHCP server to always return total length of
2418	    a new lease in DHCPOFFER, even if an existing lease
2419	    exists. (It used to return the time remaining on the lease
2420	    whne one existed.) This fixes problems with the Sony Ericsson
2421	    K610i phone. Thanks to Hakon Stordahl for finding and
2422	    fixing this.
2423
2424	    Add DNSMASQ_INTERFACE to the environment of the
2425	    lease-change script. Thanks to Nikos Mavrogiannopoulos for
2426	    the patch.
2427
2428	    Fixed broken --alias functionality. Thanks to Michael
2429	    Meelis for the bug report.
2430
2431	    Added French translation of the man page. Thank to Gildas
2432	    Le Nadan for that.
2433
2434	    Add --dhcp-match flag, to check for arbitrary options in
2435	    DHCP messages from clients. This enables use of dnsmasq
2436	    with gPXE. Thanks to Rance Hall for the suggestion.
2437
2438	    Added --dhcp-broadcast, to force broadcast replies to DHCP
2439	    clients which need them but are too dumb or too old to
2440	    ask. Thanks to Bodo Bellut for the suggestion.
2441
2442	    Disable path-MTU discovery on DHCP and TFTP sockets. This
2443	    is never needed, and the presence of DF flags in the IP
2444	    header confuses some broken PXE ROMS. Thanks again to Bodo
2445	    Bellut for spotting this.
2446
2447	    Fix problems with addresses which have multiple PTR
2448	    records - all but one of these could get lost.
2449
2450	    Fix bug with --address and ANY query type seeing REFUSED
2451	    return code in replies. Thanks to Mike Wright for spotting
2452	    the problem.
2453
2454	    Update Spanish translation. Thanks to Chris Chatham.
2455
2456	    Add --neg-ttl option.
2457
2458	    Add warnings about the bad effects of --filterwin2k on
2459	    SIP, XMPP and Google-talk to the example config file.
2460
2461	    Fix va_list abuse in log.c. This fixes crashes on powerpc
2462	    when debug mode is set. Thanks to Cedric Duval for the
2463	    patch.
2464
2465version 2.42
2466            Define _GNU_SOURCE to avoid problems with later glibc
2467            headers. Thanks to Jima for spotting the problem.
2468
2469	    Add --dhcp-alternate-port option. Thanks to Jan Psota for
2470	    the suggestion.
2471
2472	    Fix typo in code which is only used on BSD, when Dbus and
2473	    IPv6 support is enabled. Thanks to Roy Marples.
2474
2475	    Updated Polish translations - thank to Jan Psota.
2476
2477	    Fix OS detection logic to cope with GNU/FreeBSD.
2478
2479	    Fix unitialised variable in DBus code - thanks to Roy
2480	    Marples.
2481
2482	    Fix network enumeration code to work on later NetBSD -
2483	    thanks to Roy Marples.
2484
2485	    Provide --dhcp-bridge on all BSD variants.
2486
2487	    Define _LARGEFILE_SOURCE which removes an arbitrary 2GB
2488            limit on logfiles. Thanks to Paul Chambers for spotting
2489            the problem.
2490
2491	    Fix RFC3046 agent-id echo code, broken for many
2492	    releases. Thanks to Jeremy Laine for spotting the problem
2493	    and providing a patch.
2494
2495	    Added Solaris 10 service manifest from David Connelly in
2496	    contrib/Solaris10
2497
2498	    Add --dhcp-scriptuser option.
2499
2500	    Support new capability interface on suitable Linux
2501	    kernels, removes "legacy support in use" messages. Thanks
2502            to Jorge Bastos for pointing this out.
2503
2504	    Fix subtle bug in cache code which could cause dnsmasq to
2505	    lock spinning CPU in rare circumstances. Thanks to Alex
2506	    Chekholko for bug reports and help debugging.
2507
2508	    Support netascii transfer mode for TFTP.
2509
2510