libosip2 (5.3.0) - 2021-11-22
* STRUCTURE change: struct osip_transaction

* CHANGE: if out_socket contains -999 and timer_b or timer_f fires, the transaction will report a transport-error

* improve TIMER_E to avoid high interval after DNS or socket events
* when port number starts with 0, just put 0 and discard other char [no op in practice]

libosip2 (5.2.1) - 2021-05-25
* fix compilation warning on ANDROID
* add OSIP_RETRY_LIMIT which may be useful to exosip
* add osip_timersub macro
* [windows] automatic usage of debug malloc/free to ease leak detection on windows
* fix validate that the API are used with the expected/required leading char
osip_uri_parse_headers parameter must start by '?'
osip_uri_parse_params parameter must start by ';'
* fix memory out-of-bound access in broken uncompliant Via header
* fix k= within media being rejected since 5.1.1 [wrong check]

libosip2 (5.2.0) - 2020-11-10
* use localtime_r when __USE_POSIX is available
* sync versions with libexosip

libosip2 (5.1.2) - 2020-08-22
* remove requirement for mime-version header when multipart body is used
* add "make valgrind" to run valgrind test. "make check" only runs without valgrind.
* new style format using clang-format
* timers for event will trigger when time is equal (not 1ms after). change required for libeXosip2-5.1.2.
* add detection of localtime // simplify logs and use readable time in it.
* use proper const for osip_trace API.

libosip2 (5.1.1) - 2020-01-16
* fix vulnerability report: Authentication-Info or Proxy-Authentication-Info are affected by a buffer overflow when building sip messages.
* fix vulnerability report: when boundary only contains one quote, strncpy will use the unsigned value of -1 as size parameter.
* fix: avoid several memory leaks detected in the SDP parser upon invalid SDP formats.
* fix bug #57467: infinite loop in sdp_message_a_attribute_del_at_index
* fix bug #56071: Heap-buffer-overflow in osip_util_replace_all_lws function in osip_message_parse.c
* fix to reject any non compliant answer with missing version digits.

libosip2 (5.1.0) - 2019-03-27
* STRUCTURE change: struct osip_srv_record
* STRUCTURE change: struct osip_naptr
* constant renamed: CRLF, LF, CR, SP renamed to OSIP_CRLF, OSIP_LF, OSIP_CR, OSIP_SP

* new API: int parser_add_comma_separated_header(const char *hname);

* support larger binary attachment.
* use strspn for better readability.
* update osip_naptr & osip_srv_record structures to hold more NAPTR info and store ENUM result.
* add AM_SILENT_RULES for autotools silent compilation.
* fix a bug introduced in version 5: The current code is not counting correctly escaped " for multiple
headers on one line. This is fixed.
* In order to prevent incorrect parsing of header that should not appear on one line, osip now contains
a list of known headers which are allowed to appear as "multiple header on one line separated with COMMA".
Other headers will be parsed as ONE header.
* new API: parser_add_comma_separated_header API can be used to add other headers in the list, so they
will be parsed by osip as "multiple header on one line".
* support for Visual Studio 2017: rename macro, better usage of WINAPI_FAMILY.
* add some pre-defined SIP answer code (from www.iana.org/assignments/sip-parameters/)
* fix windows compilation on mingw/msys if compiling without threads.
* fix bug report: sr #109265: SIP message body length underflow in libosip2-4.1.0
https://savannah.gnu.org/support/?109265
* other minor changes: warning, compilation...

libosip2 (5.0.0)
* STRUCTURE change: additionnal parameter for "struct osip_srv_entry" used for failover in eXosip2.

* fix overflow: sr #109133: Heap buffer overflow in utility function *osip_clrncpy*
* fix overflow: sr #109132: Heap buffer overflow in *osip_body_to_str*
* fix overflow: sr #109131: Heap buffer overflow in `_osip_message_to_str`
* simplify usage of timercmp/timerisset/timerclear
* optimize list search: use iterator
* improve/update autotools (./configure and options, Makefile.am, ax_thread.m4...)
* verify a URI scheme only contains allowed char
* improve make check (test unit) to make it clear about the results expected.
* fix a possible buffer overflow of 1 byte in sdp_message_to_str (size=sdp allocated size)
* fix cseq check in order to stop retransmission of 200ok
* update to reject negative value in port number
* add support for ntlm authentication in parser
* include application_data when cloning sip message
* fix to allow correct parsing of quoted string in from/to/contact/...
* add authorizations and proxy_authorizations into ACK for 3xx, 4xx, 5xx, and 6xx (if answer was not 401/407)
* additionnal check for cseq number for matching incoming ack restransmission
* patch to transmit ack for OSIP_ICT_ACK_SENT event
* improve management of body length // fix a bug when initial value of body is \0.
* increase timer E as soon as we receive 1xx for NICT.
* update all reasons according to RFC.
* add some reason code from rfc4412, rfc3261 and rfc6086.
* parse addr spec with LAQUOT and RAQUOT in generic parameters.
* avoid issue with comma in userinfo of URI which may appear for several headers such as Contact.
* do not use multiple header method for t, f, i, r, refer-to, b, referred-by headers.
* allow faster connection with non blocking reliable sockets.
* improve android time compensation.

libosip2 (4.1.0)
* fix sdp re-allocation
* increase max length size
* support for Visual Studio 2012 (v110 and v110 for XP)
* support for Windows Phone 8
* osip_trace_initialize returns 0 if log are compiled.
* timer e and timer g will use #define DEFAULT_T2 instead of 4000.
* handle additionnal possible malloc failure.
* fix compatibility with old UA for INVITE retransmission.
* fix osip_sem_destroy leak on apple.
* accept lowercase sip/2.0.
* increase max default size for logs on windows.

libosip2 (4.0.0)
* implement time compensation for android.
* reduce path len // remove path in front of logs.
* accept only SIP/D.D format message.
* fix bug when releasing request with missing major headers.
* fix minor memory leak // remove limitation on fifo size.
* add system time support for macosx and ios.
* use system independant time for osip_gettimeofday on unix platform.
* To compile/use osip based application in multi threaded
env, you don't need to define -DOSIP_MT any more. Instead,
if you wish to disable the feature, you can compile with
-DOSIP_MONOTHREAD.
* A few other clean up were made inside osip to avoid any
define to appear in include files. Also to avoid conflict,
config.h has been renamed to osip-config.h.

libosip2 (3.6.0)
* minor improvments. The git on savannah will bring you all details!

libosip2 (3.5.0)
* iphone with TCP/TLS background support.
* android support.
* a lot of minor change/fix/improvments, sorry for not being
able to have an history here...

libosip2 (3.4.0)
* remove CRLF before parsing SIP message.
* modification to allow non-blocking socket for reliable transport.
* fix race condition for non-atomic incrementation operation.
* osip_list improvements.
* osip_list prototypes and warnings fix.
* new osip_strcasestr method.

libosip2 (3.3.0)
* new APPLE native interface for semaphore
* add relative time in log information on linux/windows
* fix: unescape last uri parameters.

libosip2 (3.2.0)
* return new error code for all API.

libosip2 (3.1.0)
* Windows Mobile 5/6 improvments.
* allow uncompliant/IMS authentication headers.
* fix when a space appear as the first char in body.
* terminate body with '\0' after parsing (don't rely on this!)

libosip2 (3.0.3)
* initial support for rtems.

libosip2 (3.0.2)
* initial support for ucos.
* fix to ignore broken optionnal header when parsing.

libosip2 (3.0.1)
* add Windows CE support with Visual Studio 2005
(WM5.0,PocketPC 2003/2005, Smartphone)
* Fix memory leaks (not likely to happen).
* Fix buffer overrun in url.
* Modification of the Application Binary Interface (ABI)
to decrease number of allocations.
Changes: osip_message_t/osip_dialog_t/sdp_message_t/osip_fifo_t
* save route headers in the same order (CALLER or CALLER) in dialogs.

libosip2 (2.2.3)
* fix 64-bit (amd64) issue with hash.
* remove SDP negotiation (much better to do it in your applications)

libosip2 (2.2.2)
* parser speed improvements
* replace mutex with critical section on windows for performance.
* fix a bug in the parser for empty header (also store empty Accept header)
* improve mime support.
* improve sipfrag support.
* add NULL checks (uris...).
* patch for PSOS support.

libosip2 (2.2.1)
* fix a potential mem leak content_type and osip_message_parse.
* fix osip_body_clone method (add terminating NULL)
* fix for binary support when multipart is used.
* automatic check for reliable protocol SCTP and TLS.
* avoid <winsock.h> inclusion so user can (and must) now include either
<winsock.h> or <winsock2.h> before including <osip/osip2.h>

libosip2 (2.2.0)
* remove #ifdef OSIP_RETRANSMIT_2XX to always compile it.
* initialize remote_contact_uri when dialog is built with notify.
* allow very short attachements.
* new macros allocators.
* remove use of alloca in the parser.
* fix memory bug when realloc is needed on large message.
* remove useless prototypes.
* fix memory access in parser.
* API slightly broken to enable support for binary data.
* improvements of the sip message test suite.

libosip2 (2.0.9)
* fix detection of CRLFCRLF in osip_util_replace_all_lws.
* fix expires header with comma.
* fix a few memory leak in parser.
* improvements for the new sdp negociator.
* fix trace mode.

libosip2 (2.0.8)
* Fix lookup of generic/uri parameter (use case-insensitive comparison)
* Initial release of the new SDP negociator. (old one will be removed)
* fix bug in parser (windows)
* fix lookup of generic_paramter and uri_parameter.
* fix memory leak in condition variable (windows).

libosip2 (2.0.7)
* Fix a parser bug for uncomplete request line.
* Update timer facility for windows.
* Remove useless #define.

libosip2 (2.0.6)
* Fix a memory access in authentication headers.
* Fix possible buffer overflow in uri.
* Two memory bug fix in the parser.
* allow missing tag in To header of incoming request.
* reindentation of all code.
* improve configure.in file
* tiny other fix (doxygen, prototypes, warnings)

libosip2 (2.0.5)
* Fix for content-type header.
* New optionnal timer interface. (will become the default)
* fix the sent-by check for matching response with transaction.

libosip2 (2.0.4)
* fix random number generation on windows.
* fix for MingGw compiler
* set paramter of sdp_negociation_t structure to NULL on init.

libosip2 (2.0.3)
* new method to create dialog from NOTIFY requests.
* fix random number generation to avoid possible guess of random numbers.
* fix a bug for media line with number_of_port specified
* fix compile issue with --disable-trace & --disable-debug

libosip2 (2.0.2)
* fix Makefile.am to include debian directory.
* fix a bug when response contains a code set to "0".
* fix a bug when Mime-version is present but Content-type is undefined.
* fix when Call-Id is missing.

libosip2 (2.0.1)
* fix bug in osip_message_to_str() for too long messages.
* improve robustness when parsing empty headers.
* add optionnal retransmission of 2xx and ACK for INVITE capabilities.
* fix bug on exit for WIN32.

libosip2 (2.0.0)
* initial release of libosip2

libosip2 (1.99.6)
* complete new organization of files and directories.
* become libosip2.

libosip (1.99.4)
* fix a bug when ACK for 3456xx can't be built.
* complete reorganisation of includes, files and directories.
* moving free to corresponding *_free()
* remove the need to define HAVE_* to compile simple program with osip2
* complete renaming of the API.

libosip (0.9.7)
* fix a bug in hdr_wwwauthenticate.c.
* patch for debian packaging and version management.
* extra free removed for pSOS (smutex_destroy/ssem_destroy)
* fix crash when osip can't build ACK for 3456xx to INVITEs.
* Extra spaces now appear before content-length digits.

libosip (0.9.6)
* fix transaction_init for request without mandatory headers.
* refuse to create transactions with cseq and method that differs.
* check minimum authorized length for method name of request.
* fix the state when a retransmission of INVITE is received.
* Minor changes in #define definitions just for clarity.

libosip (0.9.5)
* fix a memory leak for retransmissions in msg_2char.
* fix a bug when startline end with CRCRLF.

libosip (0.9.4)
* fix win32 compilation for Debug release.
* re-fix(?) the parsing of the Date header.
* verify log strings are NULL terminated.
* add syslog support.
* continue WINCE port.

libosip (0.9.3)
* fix a bug for quoted strings starting with an escaped char '\'.
* initial commit for WinCE support. (uncomplete)
* fsm/port_sema.c: (windows only) sem_trywait was never returning 0.
* add a method to get possible destination and port for a request.

libosip (0.9.2)
* add support for the received and rport parameters inside the osip stack.
* sdp_negoc.c: fix the video support.
* msg_parser.c: use realloc for main buffer of msg_parse().
* hdr_authorization.c: improve end of header detection.
* hdr_callinfo.c: fix a bug when realloc happen here.
* hdr_from.c: accept empty parameter.

libosip (0.9.1)
* fix non multi-threaded version. (fifo_size was broken)
* Add win32 system logger feature. (compile with SYSTEM_LOGGER_ENABLED)

libosip (0.9.0)
* a few warnings fix for win32.
* Change *_2char methods so they use realloc. (not yet finished!)
* Update the API and sip_t to support multiple "Authorization" headers.
* bug fixed in sclrspace() when allocated string is of length 1.
* bug fix ("sip:" and "sips:" should be equivalent to "SIP:" and "SIPS:")
* remove a printf.
* remove DEBUG() macros
* move TRACE -> OSIP_TRACE
* move trace -> osip_trace to avoid duplicate definitions

libosip (0.8.9)
* smsg.h: fix max_forward to max_forwards.
* osip/osip.h: you can now attach an application pointer to osip_t
* osip/dialog.h: fix prototype for hp-ux compiler.
* fsm/transaction.c: add transaction_free2(). A usefull method to
free a transaction without removing it from the osip stack. (To
be used when it has been already removed earlier.)

libosip (0.8.8)
* windows: The windows contributions was wrong. Thread were killed
instead of joined. I changed that...
* transaction.c/ict.c/ist.c/nict.c/nist.c: Avoid a race conditions
when a retransmission might be added before the initial message
is added in the fifo. (very unlikely to happen...)
* urls.c: built-in support of escaped sequences in sip-uri!
* vxworks minor patches.
* nict.c and ict.c: fix a bug with the setting of the port.
* fsm/dialog.c: if 1xx answer does not contain the route set, update
it when the 200 OK comes in.
* parser/hdr_acceptencoding.c: msg_2char use realloc() now.
(Thanks to chenshx for his patch)
* improve support of other scheme in the fsm. It is now able
to manage transaction with non-sipurl in the To or From header!
* urls.h: fix MACROs for adding parameters.
* new optional algo using gperf (thanks to <chenshx@mail.datang.com>)
use ./configure --enable-gperf
* new debugging tools with mpatrol: ./configure --enable-mpatrol

libosip (0.8.7)
* reject message with 2 call-id, 2cseq, 2 from, 2 to...
* allow generic_param can have a NULL value!.
* ist and nist was calling the wrong callback on retransmission.
* New checking rules compliant to the latest draft for internal
management of transactions.
* "make check" is available and improve results ouput.
* delete warnings for OpenBSD compilation. The port to pth is still
an issue for me.

libosip (0.8.6)
* documentation started with Doxygen.

libosip (0.8.5)
* Dialog fully tested and hoped to be correct.
* osip_create_transaction: can now be used to create ICT and NICT
* contact_param_add: fix MACRO! an argument was missing.
* dialog.c: make it more compliant: TO BE TESTED!
* transaction.c: MAJOR CHANGE: transaction_free() must now be called by the
application! This way, you can re-use data before releasing the context..
* add a failure case when there is no '>' char when '<' is found.
* fix compilations issue with --disable-mt.

libosip (0.8.4)
* ist_fsm.c: start timer i while entering CONFIRMED state.
* urls.c: bug in line 210.
* msg_cparser.c: switch CONTACT_SHORT & CONTENT_LENGTH_SHORT in table.
* osip_distribute_event(): obsolete!
this method was previously used ONLY for incoming message.
This was not clear! Now, you must use osip_find_transaction()
and osip_create_transaction() instead.
* msg_write.c: add msg_clone()
* smsg.h: fix MACROS

libosip (0.8.3)
* add lock/unlock methods for searching in transactions
* improve reliability when a NULL pointer is given to *_free methods.
* many bugs fixes in fsm/*
* parser/hdr_via.c: support for ipv6. Previous version are not compliant.

libosip (0.8.2)
* ipv6 support (need more testing.) - Thanks to tomohide.
* support for any scheme in url. (Use with care with applications.)
* support for sysv semaphore.

libosip (0.8.1) testing ;urgency=high
* new finite state machines for TRANSACTION LAYER compliant with
the rfc2543bis-09.txt. This is a total rewrite. Those new
fsm should be usable either by proxies and endpoints. The
difference is in the UAC_UAC_core and Proxy_core. (Stateless
proxy don't need any state machines!)
* some bug fixes and one memory leak in the parser.
* COMPATIBILITY WITH PREVIOUS RELEASE IS NOT KEPT!
* test in ./example and ./example_mt are deprecated and removed.

libosip (0.8.0) testing ;urgency=high
* new SDP parser
* new SDP automtic negociation facility (for User Agent)

libosip (0.7.9) testing ;urgency=low
* hdr_authorization.c/hdr_wwwauthenticate.c:
Interoperability issue with Vovida.
* hdr_via.c: add the via_appendtopvia(...) as required by users...
* Windows updates makefiles (VC6++, tested on NT4).
* gcc-3.0 updates and ANSI modifications:
* Thanks to marko for little improvments.

libosip (0.7.8) testing ;urgency=high
* this version is full SIP compliant with some excetions. Ask
osip@atosc.org for current status.
* HNY :-)
* Thanks to contributors for patches:
Vytautas Vysniauskas
Rick Flott.

libosip (?.?.?) testing ;urgency=low
* oSIP is the official name!!!