1 Fixed bug #797: yaz_marc_write_xml does not honor character conversion.
3 Added timings utility (yaz/timing.h)
7 Added yaz_marc_write_xml which creates MARCXML/MarcXchange record as
10 Fixed bug #779: Rotation of apdu.log fails.
12 Fixed for character set conversions:
13 Unicode to MARC-8 conversion for certain less preferred UTF-8 sequences.
14 Honor G1 set in MARC-8 decoding.
18 Fixed bug #775: char conversion does not handle Alternative UTF-8
21 Implemented function yaz_marc_read_line which parses MARC line format
22 records. There is a wealth of formats out there. So far, this function
23 reads line records produced by yaz_marc_write_line.
25 yaz-marcdump's options -x, -X, -I, -e have been replaced with the
26 more generic and easier to remember(!) options: -i format and -o format
27 which specifies input format and output format respectively - where
28 format is one of "marc", "marcxml", "line", "marcxchange".
30 Added 'check only' option for MARC utilities. Option -n for yaz-marcdump
31 does not print anything except warnings for records.
33 For yaz-marcdump, added support for MARC split into files (-s) with a given
36 Changed the SRU update structures and codecs to reflect the SRU pre 1.0
37 spec, at http://www.loc.gov/standards/sru/record-update/
38 This has changed the binary layout of the following structs:
39 Z_SRW_extra_record, Z_SRW_updateRequest, Z_SRW_updateResponse and
40 bend_update_rr . Patch by Ko van der Sloot.
42 Added GFS utility function bend_assoc_is_alive which returns 1 if
43 association is still alive (client is connected); 0 otherwise (client
44 closed connection). This allows busy servers to stop working for
47 Added ziffy: the promiscuous Z39.50 APDU sniffer. until now, ziffy has
48 been a separate piece of software. This version of ziffy has been modified
49 to fit with YAZ. ziffy is copyright Rocco Carbone and covered by GPL v2.
51 Fixed bug #740: Handle SRU records referring to xmlns's outside recordData.
53 Fixed bug #722: Allow Z39.50 Init Options to be specified / retrieved.
54 Client code may now interrogate options such as "init_opt_sort" to
55 find out whether the server claims to support various options.
59 Added utilities yaz_{set,get}_esn to set/get element set name from
62 Removed the build of libyazthread.la. The libyaz.so is the threaded version
63 of YAZ and has been so since YAZ 2.1.10.
65 Implemented ZOOM_record_error which returns error information for
66 record (surrogate diagnostic).
70 Updates for SRU Update by Ko van der Sloot:
71 1. Changed name from "operation" to "action"
72 2. Fixed that that "recordIdentifier" was called "recordId". Kept the old
73 versions in the code, marked as 'backward compatible'.
74 3. Added diagnostics for SRU Update.
76 Fixed bug #709: Records are fetched in wrong format when tasks are queued.
78 Fixed bug #707: CQL->RPN ignores lines with leading spaces.
80 Fixed bug #706: XML hex encoding UTF-8 chars out of range 0-255.
82 For GFS, fixed problem with SRU diagnostic 'First record position out of
83 range' being issued for 0 hits.
85 zoomtst10 part of Windows Build.
89 Implemented yaz_filepath_comp which splits a path into file path
90 components (required by Zebra 2.0.3+).
92 Change wording of YAZ license to the 'Revised BSD License'. YAZ has used a
93 BSD inspired license until now so this should not have any real impact on
94 anybody. See http://www.opensource.org/licenses/bsd-license.php
96 Fixed bug #687: Missing log lines.
98 Fixed bug #678: CQL to PQF translation does not preserve double-quote
101 Fixed bug #689: SRU diagnostics to be added.
103 Implemented new ZOOM function, ZOOM_connection_is_idle, which checks
104 whether a connection is idle (no more work do do).
106 --- 2.1.34 2006/10/04
108 Change type of optval from long to int for invocation of setsockopt with
109 the SO_REUSEADDR option. Thanks to Ateeq A. Altaf, Talis.
111 Added support for specifying the max log file size for the Generic
112 Frontend Server. The size is given with option -r.
114 --- 2.1.32 2006/09/21
116 Fix problem introduced in YAZ 2.1.28 WRT unix sockets in the ZOOM code.
118 --- 2.1.30 2006/09/17
120 Fixes for getaddrinfo use, Bugs #655 + #660. These bugs were introduced
123 Fixed bug in Generic Frontend Server that could cause a server to stop
124 accepting new connections. Bug only seen on dual CPU Windows 2003 server.
126 For the generic frontend server, the maximum record size is used as maximum
127 size of incoming packages (SRU + Z39.50). The value until was previously
128 only used in Z39.50 Init negotiation and, later, in a session controlled
129 sizes of records returned. This is controlled using -k option. It can be
130 specified, per server, with element maximumrecordsize in YAZ' GFS XML config.
132 --- 2.1.28 2006/09/04
134 TCP/IP comstack uses getaddrinfo now to resolve names. It should be IPV6
137 Fixed bug #644: Using Non Reentrant gethostbyname causes SIGSEGV.
139 New option for yaz-marcdump -lpos=value which allows setting a portion
140 of MARC header to a certain value.
142 Fixes for MARC generation when encoded as MARC-8 (bug 642, 643).
144 ZOOM-C reads option extraArgs. If set the value of extraArgs is appended to
145 SRU URI (POST/GET). Value must be URL encoded, such as x-id-a=v1&x-id-b=v2 .
147 --- 2.1.26 2006/08/15
149 Fixed problem with SRU mode type (soap, get, post) for yaz-client
152 Fixed problem another problem with ZOOM_EVENT_RECV_RECORD . Bug #626.
154 --- 2.1.24 2006/08/08
156 Fixed MARC ISO2709 encoding routines to deal with character set
159 Minor changes to GFS logging. Database included in search request log
162 Fixes for ZOOM-C: event ZOOM_EVENT_RECV_RECORD was not generated for
163 cached/multiple records.
165 Shared libraries are built by default on Unix+configure.
167 Changed cql2pqf transformation to use a different evaluation order. The
168 new order is: always, relation, structure, position, truncation, index
169 and relationModifier. Old order was: always, relation, relationModifier,
170 structure, index, position, truncation. Note that the the latter ones
171 override former ones for identical attributes.. The new scheme means that
172 it is possible to override any existing attribute with a relationModifier.
173 And also that it is possible to override everything for the index rule
174 (except the ones listed in relationModifier). No order is perfect but this
175 one, we believe, covers more real cases.. The "always" should have been
176 called "default", since the attributes there can be overridden with all
179 For Libxml2 and friends, YAZ defines YAZ_HAVE_{XML2,XSLT,EXSLT) in the
180 compilation phase, but also for yaz-config --cflags output. This allows
181 us to have public headers with Libxml2 stuff in them . It should also,
182 eventually, make Libxml2 checks redundant in packages using YAZ, such
185 --- 2.1.22 2006/06/15
187 Changed SRU update structure bend_update_rr so that SRU diagnostics are
188 stored in uri, message and details.. Previously diagnostics were stored
189 in errcode, errstring. Patch by Ko van der Sloot. Breaks binary
190 compatibility.. but he's probably the only one affected, so.
192 Added support for CCL, compiled on the client side, in ZOOM-C. This
193 is invoked using ZOOM_query_ccl2rpn() with the CCL configuration as
194 input; the resulting query objects can be used for for searching with
195 ZOOM_connection_search() and scanning with ZOOM_connection_scan1().
197 YAZ' configure searches for OpenSSL by default.
199 SSL comstack uses SL_CTX_use_certificate_chain_file rather than
200 SL_CTX_use_certificate_file. See
201 http://lists.indexdata.dk/pipermail/yazlist/2006-June/001615.html
202 for more info. Thanks to Ko van der Sloot.
204 --- 2.1.20 2006/06/02
206 Bug #600: SRU GET, POST support for yaz-client. Introduced
207 command 'sru' which selects method SOAP/GET/POST.
209 Allow missingValueAction to be specified for the sortspec string -
210 function yaz_sort_spec. By default, the missing value action is null.
211 Use ! to specify "abort". Use = followed by stringvalue to specify default
214 Ensured that Present-handler (if defined) is called in GFS before any call to
215 fetch-hhndler. This now includes piggy-backed presents as well as SRW/U
216 searchRetrieve requests.
218 Documentation for YAZ is now based on the Docbook XML/XSLT using
219 xsltproc + N Walsh's stylesheets. It means that the CVS version of YAZ
220 is no longer depending on jade/openjade or docbook-to-man scripts.
221 PDF is no longer part of the distribution - but can optionally be
222 made using DSSSL/jadetex or FOP.
224 Added retrieval handling support in Generic Frontend Server to support
225 conversion between MARC/XML as well as XSLTtransforms. See
226 etc/yazgfs.xml for an example.
228 Added Authentication support to Generic Frontend Server in SRU
229 mode. Authentication using HTTP Basic is supported, as is the use
230 of 'x-username' and 'x-password' parameters in the request itself.
232 Added support for a new character set MARC8s identical to MARC8 except
233 that it converts combined characters to single Unicode characters in the
234 Latin-1 range (when possible).
236 --- 2.1.18 2006/04/24
238 ASN.1 compiler 0.4: generates brief Doxygen file header for
239 generated .h/.c files.
241 Utility yaz_iconv now supports conversion to MARC-8.
243 New facilities for the MARC module. The reading - and writing of
244 content are separate methods for the yaz_marc_t handle. The following
245 read functions are available: yaz_marc_read_iso2709 (Reads MARC in
246 ISO2709 format), yaz_marc_read_xml (reads MARC in MARCXML/MarcXchange
247 format). Write functions have prefix yaz_marc_write_.. The existing
248 utilities yaz_marc_decode_wrbuf and yaz_marc_decode_buf are still
249 available. Removed support for OAI-MARC and simplexml (not the
250 simplexml from PHP5).
252 Added a new ZOOM event type ZOOM_EVENT_END which signals no more events
253 to be returned for this connection.
255 --- 2.1.16 2006/03/31
257 Allow multiple languages and charsets to be specified with
258 yaz-client. Each item must be separated by comma (NO BLANKS). E.g.
259 negcharset iso-8859-1,utf-8
261 Translation of proximity nodes from CQL into PQF now works.
263 Moved to automake 1.8, 1.9.
265 Added function yaz_log_set_handler which allows a log handler to be
266 installed. This handler will be called for all log messages. Output
267 to file is also produced; but that can be disabled by passing NULL
268 fname to yaz_log_init_file.
270 Fixed another problem with MARC-8 -> ISO-8859-1 conversions. Bug #537.
272 For SRW (including GFS), accept application/soap+xml as content-type
275 For GFS in SRU mode, an empty stylesheet in SRU URL (&stylesheet=&)
276 produces NO stylesheet reference even if a default stylesheet is specified
279 --- 2.1.14 2006/03/14
281 Updated Windows package to include yazd.dll + yazd.lib for the
282 Development component.
284 If the environment variable YAZ_LOG is set, then it is used as a
285 string indicating the default level of logging to use if not
286 overridden by calls to yaz_log_init() or yaz_log_init_level(). If
287 it's not defined, then the manifest constant YLOG_DEFAULT_LEVEL is
288 used as before. So, for example, to omit warnings from YAZ logging,
291 cql_transform() now map structure and other attributes before indexes,
292 so that index-specific structures and other attributes can override
293 defaults. So now a combination of mapping specifications such as:
295 index.dc.date = 1=date-modified 4=5
296 does the right thing.
298 cql_transform() now also respects the "always" mapping specification,
299 which establishes an initial set of attributes to be used for all
300 terms except where overridden by more specific attributes associated
301 with the index, relation or modifier.
303 Added SRU-GET and SRU-POST support for ZOOM C. Option "sru" specifies
304 which mode to use; one of "post", "get" or "soap" (SRW, default).
306 Fixes for yaz_iconv routines: changed trie-based character set conversions
307 to use only non-negative values for bit fields due to Sun's C compiler not
308 supporting negative values.
310 Fixed bug in character set conversion yaz_iconv. Some three byte UTF-8
311 sequences where not read correctly. Fix by Rustam Usmanov.
313 Updated win/makefile to use options, settings which makes things
314 compile with VS C 2005.
316 --- 2.1.12 2006/02/01
318 Fixed bug in yaz_oi_update which used incorrect value for categoryValue.
320 In ZOOM socket code, use select instead of poll on MacOSX.
322 ZOOM-C now support client-side compilation of CQL into RPN that is
323 sent to the server, enabling CQL to be used against all Z39.50
324 servers. Use ZOOM_query_cql2rpn() to set the compiled CQL into a
325 ZOOM_query object, and submit it using ZOOM_connection_search().
326 The CQL-to-RPN translation uses a configuration file, the name of
327 which must be specified in the Connection's "cqlfile" option.
329 ZOOM-C also support CQL scanning, via the new ZOOM_connection_scan1()
330 function, which takes as its start-term parameter a ZOOM_query object
331 (which may have had either CQL or RPN set into it).
334 --- 2.1.10 2005/11/29
336 Added ZiNG Update Support. New codecs are defined in srw.h. Extended the
337 GFS to support this as well. Backend handler, bend_srw_update, does the
338 update work. Code contributed by Ko van der Sloot.
340 Allow retrieval of Search Result-1 information in ZOOM by the use of
341 options that are attached to a result set. ZOOM documentation updated
344 Fixed bug #416: First/second comb characters not handled in the MARC-8 to
345 UTF-8 conversion. Patch by Raj Patel.
347 Added option -m to GFS to control formatting of timestamps in log file.
349 Added 'exit' as synonym for 'quit' in yaz-client
351 Added support for specifying SRW resultSetId + resultSetIdleTime in a
352 Generic Frontend Server's search handler. Refer to include/yaz/backend.h
353 for the new members. Patch by Ko van der Sloot.
355 Added support for SRU POST. It is supported for content-type
356 application/x-www-form-urlencoded only. Patch by Ko van der Sloot.
358 Do not build the separate Multi-threaded (MT) library libyazthread.la.
359 Instead make the library libyaz.la multi-threaded. Threading as a whole
360 can still be disabled by configure option --disable-threads. Previosly,
361 with older GLIBCs there were problems with MT libs under Apache. This
362 has now been fixed a long time ago.
364 Fixed bugs in yaz_log that occurred on Sparc Solaris in Multi-threaded
367 CQL module modified to be case insensitive for relations/indexes/operations.
369 Fixed bug in CQL transform code: incorrect value relationModifieder
372 Added 'show all' command for yaz-client which retrieves all results
375 Added new yaz-client, xmles, which takes a (private) OID and
376 a document to be sent as an extended service request.
378 Describe new yaz-client commands wait_response and set_auto_wait.
380 Increase TCP/IP listener backlog from 3 (which I am guessing was
381 copied from the SunOS manual entry way back when) so SOMAXCONN, so
382 that the socket will queue as many incoming connections as it's able
383 to handle ongoing connections. In other words, it will never now
384 refuse a connection that it would be able to handle merely because
385 it's not got around to accepting() enough of the pending connections
386 yet. This is the behaviour anyway under Linux, where the listen()
387 argument is ignored; but not under BSD and on systems such as
388 MS-Windows that use BSD-derived TCP/IP stacks. The behaviour of
389 YAZ-based servers should now be uniform across operating systems in
392 yaz-marcdump uses 64-bit file access on some systems. This is enabled
393 on Linux and other Unix variants where _FILE_OFSET_BITS=64 is supported.
394 This allows yaz-marcdump to read large MARC batches (>2 GB).
396 Modified all YAZ source files - except the source which is auto-generated
397 by tools - to use spaces rather than TABS. Emacs/VIM trailer added to
400 Add ZOOM_connection_option_getl() and ZOOM_options_getl(),
401 corresponding to the existing *_setl() function. These allow option
402 values containing arbitrary valuues.
404 Add ZOOM_resultset_sort1(), which should ALWAYS be used in place of
405 ZOOM_resultset_sort() in new applications. Its behaviour is identical
406 except that it returns an indicator of whether or not the sort
407 criterion was accepted (0 for OK, -1 for invalid).
411 Fixed bug in yaz_marc_decode_buf. By mistake the routine appended
412 MARC output rather than returning "new" buffer.
414 yaz-client warns about unknown init options.
416 Fixed bug #371: "options concurrentOperations ignores concurrentOperations"
420 Added support for SRW sort in Generic Frontend Server. Patch
421 by Ko van der Sloot. Member srw_sortKeys in bend_search_rr holds
422 sortKeys - or NULL if none is provided.
424 Fixed bug #307: It was impossible to specify indefinite/no timeout
425 for ZOOM_event. Special timeout value -1 now means indefinite timeout
428 Added support for multiple languages and charsets to be specified in
429 ZOOM. Each charset/language is separated by a blank. If negotiation is
430 in effect in init-response, Option
431 "negotiation-charset-in-effect-for-records" set to 1(true) or 0(false).
432 Code based on patch by Vasiliy Osadchuk.
434 Fixed bug #306: infinite recursion that occurred when calling
435 yaz_log_level_init as the first call (before other log level or
438 Fixed bug in scan handling in front end server: if preferred-Position-In-
439 Response was non-present, a NULL pointer referece was performed.
443 Changed include/yaz/diagbib1.h and added include/yaz/diagsrw.h with
444 diagnostic messages+codes for Bib-1 and SRW. Preprocessor defines are
445 now defined for all those error codes. So instead of putting 109 in
446 your program you'd use YAZ_BIB1_DATABASE_UNAVAILABLE. The messages
447 are generated from a .csv - file. See src/bib1.csv and srw/srw.csv.
449 Modified the yaz-marcdump utility to skip garbage bytes between MARC
452 Fixed bug - uninitialized memory - due to bad code for fix of bug #272.
454 Program yaz-client now exits and produces an error message if multiple
455 Z39.50 servers are specified on the command line (none or one allowed
458 Program yaz-marcdump skips garbage bytes between ISO2709 records rather
463 Fixed bug #273: Update for recent MARC-8 -> UNICODE changes.
465 Fixed bug #272: Preserve spacing for CCL terms.
469 Added support for virtual hosts and multiple backend servers for
470 the YAZ frontend server. The configution is XML based and
471 support specificition of CQL to RPN mappings and explain information.
472 See section "Virtual Hosts" in the YAZ manual.
474 Extended OPAC display utility. OPAC display utility renders
475 bibliographic (MARC) record as well. Added yaz_opac_decode_wrbuf
476 to supplement yaz_marc_decode_wrbuf.
478 Fixed a bug in MARC decoder that could caused it to crash for some
479 invalid MARC records. More diagnostics and warnings where added in
480 XML output (warnings, etc are stored in comments).
482 --- 2.0.34 2005/02/08
484 Fixes for UNIX domain sockets. Bug #261.
486 Fixes for MARC-8 to UTF-8 conversion. Bugs #258 and #260.
488 Fixed bug #263: YAZ MARCXML dump shows extra spaces after control fields.
489 Added yaz_marc_subfield_str which defines subfield lead string which is
490 used in YAZ_MARC_LINE format. Default string is blank+$. Added
491 yaz_marc_endline_str which defines end of fields string used in
492 YAZ_MARC_LINE format. Default string is newline.
494 Experimental support for MarcXChange. This format can be produced
495 by yaz-marcdump and is implemented in yaz_marc_decode - functions.
496 http://www.bs.dk/standards/MarcXchange.xsd
498 Added yaz-client commands scansize that sets maximum number of
499 entries to be returned by scan.
501 --- 2.0.32 2005/01/11
503 Added support for SRW scan in yaz-client and Generic Frontend Server.
505 * Added whereInList member to SRW Scan Term.
507 * Changed Z_SRW_scanRequest to be able to carry both CCL and PQF.
509 Fixed NMEM system to return aligned blocks on the smallest boundaries
510 that are suitably aligned for all possible types on the particular
511 architecture YAZ is being built for.
513 --- 2.0.30 2005/01/04
515 Fixed numerious warnings that was issued with newer versions of GCC.
517 Fixed NMEM system to return aligned blocks on 8 byte boundaries rather
518 than 4 bytes, since 4 may not be enough on some systems such as GCC 3.4.3
521 Make YAZ Generic Frontend Server slightly faster.
523 Enhance (and reduce) logging for Generic Frontend Server.
525 Revert YAZ log system so that it flushes every write operation
526 by default. (YAZ 2.0.26 and earlier verisons did that). Bug #240.
528 Modified the YAZ logging system. The LOG level defines use YLOG_ prefix
529 instead of LOG_, due to name clash with syslog(3). LOG_ are still
530 present. New applications should define YAZ_USE_NEW_LOG=1 - this
531 will effectively disable old definitions.
533 --- 2.0.28 2004/11/09
535 Added yaz_log_time_format which specifies log format using
538 Added yaz_log_module_level which returns mask for a module. Value
539 is non-zero mask a if module is enabled; zero if disabled.
541 * Fixed bug #148: CQL parser may leak. A few prototypes were changed
542 in include/yaz/cql.h.
544 Fixed bug #176: Dont throw diagnostics on empty SRU args.
546 Fixed bug #175: surrogate diagnostics in SRW lacking NS.
548 Fixed bug #172: RPM builds does not enable SSL.
550 Doxyfile.in part of dist. Doxyfile generated by configure.
552 Configure aborts if any of --with-xml2, --with-openssl, --enable-tcpd
553 are given and the corresponding component does not exist.
555 Extend CCL documentation in YAZ reference. Describe r=r.
557 --- 2.0.26 2004/10/01
559 Fixed MARC->MARCXML conversion to properly deal with
560 fields, subfields, indicators having non-ASCII characters.
562 Fixed MARC->MARCXML conversion so that ASCII control characters
563 except TAB,CR,LF are removed from resulting XML (XML 1.0 does not
566 Added YAZ GFS support for conversion from Z39.50 surrogate
567 diagnostics to SRW surrogate diagnostics.
569 Bug fix: YAZ GFS did not return schema in explainResponse.
571 --- 2.0.25 2004/09/30
573 The YAZ GFS when converting SRW/SRU requests to Z39.50 structures
574 now converts recordSchema to elementSetName as well as schema URI.
576 Fixed bug in COMSTACK that prevented HTTP request packages from being
579 --- 2.0.24 2004/09/29
581 Added CCL facility r=r "range" which is similar to r=o "ordered" but
582 does not require white-space before and after the dash in a range, e.g.
583 x=-1990 is equivalent to x <= 1990 iff r=r, but equivalent to x= -1980
586 Fixed a few AC_TRY_LINK configure tests that did not operate properly
587 due to new GCC removing "redundant" code.
589 Added yaz-client commands scanpos and scanstep that sets preferred
590 position and step-size for scan.
592 Macro YAZ_INIT in yaz.m4: option --with-yazconfig renamed to --with-yaz.
594 Added CCL utility ccl_qual_buf which parses one or more CCL
595 spec lines in a buffer.
597 Added CCL utility ccl_qual_line which adds CCL qualifier line consisting
598 of name and value - ignoring empty lines and comments.
600 On Windows, the debug DLL/import lib is now named yazd.{dll,lib}.
602 Added odr_get_element_path which returns current element path for an
603 ODR handle. This utility is useful in error handling or user-defined
606 Added ODR_PRINT utility odr_set_stream which is is a more generic
607 alternative to odr_setprint. odr_set_stream takes a stream handle, pointer
608 to a write function and pointer to close function. The close function - if
609 non-NULL - will be called during odr_destroy.
611 Fixed bug in CCL parser where truncation char was not removed from
612 right side when truncation=both was in effect.
614 Fixed CQL parser to use unsigned chars for isxxx from ctype.h due
617 --- 2.0.23 2004/08/11
619 Fix buffer overrun in CQL parser when dealing with proximity (%).
621 Fixes for MARC-8 in yaz_iconv character set utilies. The MARC-8
622 to UTF-8/UCS conversion is now only based on codetables.xml.
624 yaz_marc_decode_buf sets leader pos 9 to "a" for MARCXML output.
626 --- 2.0.22 2004/08/06
628 Add support for more "commit changes" in ZOOM (uses Extended Services).
630 For yaz-client, command set_marcdump <file> / -m <file> dumps SUTRS/XML/..
633 Yet another small fix for configure of SSL.
635 --- 2.0.21 2004/05/14
637 Fix SSL libs for configure when --with-openssl=DIR is given.
639 --- 2.0.20 2004/05/10
641 Add autoconf m4 macro YAZ_DOC for YAZ documentation setup (docbook).
643 SSL comstack now uses yaz.pem certificate file on server side
644 by default. Certificate filename can be configured by calling
645 comstack function cs_set_ssl_certificate_file before cs_bind is used.
647 Fix bug regarding multiple calls to ZOOM_connection_connect.
649 Implement cs_set_ssl_ctx which sets SSL_CTX for SSL comstack.
651 Do not create SSL_CTX in cs_create (ssl_type). Create in tcpip_bind,
652 tcpip_rcvconnect instead. This allows user to set custom SSL_CTX.
654 ZOOM now allows inspection of X509 peer certificate for verification.
655 The X509 buffer is retrived by reading ZOOM option "sslPeerCert".
657 Removed libyazssl.la. When SSL is enabled, libyaz.la has SSL support and
658 all programs have too (yaz-ztest, yaz-client, zoom..). May not be
659 as "modular" but it simplifies things.
661 Added cs_get_peer_certificate to that returns peer X509 PEM.
663 Added cs_get_ssl that returns SSL handle (SSL *) for SSL comstack; returns
664 NULL if SSL is unavailable.
666 Documentation about MARC decoding tools.
668 Fix --disable-tcpd to really disable tcpd. Patch by Robin H. Johnson.
670 --- 2.0.19 2004/03/30
672 Rename CHANGELOG to NEWS to follow GNU style packing.
674 Fix bug with missing initialization of member in init_diagnostics.
675 This bug affects threaded version of GFS server.
677 --- 2.0.18 2004/03/20
679 Use wrbuf_xmlputs_n instead of wrbuf_write_cdata to avoid clash with
682 Ensure zlib.dll is packed with Windows install.
684 --- 2.0.17 2004/03/17
686 Fix encoding of xsd:string to use text instead of CDATA.
688 Fix endless loop in CQL parser with unbalanced ".
690 Use a more compact way to store MARC-8 conversion tables.
692 --- 2.0.16 2004/03/16 Debian only
694 Oleg Kolobov Fixed a bug in yaz_iconv regarding conversion to
697 Update CQL parser to use new CQL 1.1 modifiers for booleans and
702 --- 2.0.15 2004/03/01
704 Another fix for decoding of XML packed records.
706 --- 2.0.14 2004/02/25
708 Fixes for Chunked encoding. White space not ignored after length spec.
710 Update NS and use default NS for SRW diagnostic elements.
712 --- 2.0.13 2004/02/23
714 Implement ZOOM_resultset_cache_reset which resets record cache.
716 Implement ZOOM_resultset_sort which sorts a result set.
718 Implement chunked HTTP transfer.
720 For SSL, use -lssl -lcrypto on systems that don't have pkg-config.
722 --- 2.0.12 2004/02/16
724 Added member 'schema' to bend_explain_rr structure so that backend
725 can specify explain record identifier. Defaults to Zeerex 2.0.
727 Fix encoding of OID's of form 1.0.X. Bug introduced in 2.0.11.
729 --- 2.0.11 2004/02/16
731 * SRW/SRU 1.1 updates: updated diagnostic in srw.h to use uri instead
734 Added init command for yaz-client which sends "extra" init request.
736 Fixed two bugs in OID codec - ber_oidc. Throw error when encoding/decoding
737 bad truncated OID. Fix decoding of OID X.Y... when X=2 and Y>39.
739 Fixed a bug in ASN.1 compiler that caused Type-1 Operator codec to fail.
741 Make ZOOM error code for "invalid query".
743 Fixed compilation for SSL which wasn't properly enabled for all platforms.
745 --- 2.0.10 2004/02/05
747 For yaz.m4, allow second argument for YAZ_INIT to hold minimal version of
750 * SRW/SRU 1.1 updates. Diagnostic code now a URI.
752 Added option -p <file> to make Generic Frontend Server to write PID file.
754 Added option -D to put Generic Frontend Server in background on its own.
756 Make ZOOM C recognize option "password". If unset, "pass" is used
757 (for backwards compatibility).
759 Fixed a bug in Generic Frontend Server that could make it crash if a
760 client sets characterSetNegotation bit, but didn't pass negotiation stuff
763 New YAZ client command, zversion, that sets Z39.50 version (1,2,3..).
764 Must be issued before open, in order to be in effect.
766 --- 2.0.9-6 2004/01/12 Debian/Windows
768 Make the SRU server more picky WRT unknown params, etc.
770 Bug fix: ZOOM scan response didn't return displayTerm - when present.
772 New YAZ client command, options, that sets Z39.50 options.
774 New utility functions yaz_init_opt_{encode,decode} to encode/decode Z39.50
775 options from a string of tokens (one token for each option bit).
777 Update SRW diagnostic code messages.
779 --- 2.0.9-5 2004/01/07 Debian/Windows
781 Handle user defined stylesheet for SRW/SRU.
783 --- 2.0.9-4 2004/01/06 Debian/Windows
785 Fix bug in decoding of Content-Length.
787 --- 2.0.9-3 2004/01/06 Debian/Windows
789 Fix a bug with decoding of XML packed records.
791 --- 2.0.9-2 2004/01/05 Debian only
793 Allow empty ODR (NMEM=0) for odr_oiddup and odr_getoidbystr.
795 Fix bug in SRW/SRU diagnostics decoding.
799 Fixed bug in Generic Frontend Server which could drop records exceeding
800 preferred message size. Reported and fixed by Irina Dijour.
802 Fixed calculation of package size for structured records in Generic
803 Frontend Server. Reported and fixed by Irina Dijour.
805 Fixed namespace for SRW/SRU diagnostics.
807 Fixed SEGV in yaz-client that occured for HTTP connection errors.
811 * SRW/SRU 1.1. Since the Namespace has changed for SRW/SRU, it means that
812 this version is incompatible with version 1.0 and older YAZ SRW/SRU
815 CQL changes to reflect recent changes to the specification:
816 * Documentation talks about context sets instead of index sets.
817 * Documentation talks about indexes instead of qualifiers.
818 * The CQL-to-PQF transformer's configuration file now uses
819 "index.set.name = <attributes>" instead of the old form
820 "qualifier.set.name = <attributes>". (Both forms are still
821 understood but the latter is deprecated.)
822 * CQL terms with no explicit index specified are now interpreted as
823 cql.serverChoice instead of srw.serverChoice (which of course
824 behaves exactly the same.)
828 MARC conversion can now generate ISO2709 output in another
829 character set. yaz-marcdump uses this facility if you invoke it
832 Added missing C decl macros for include/yaz/{soap.h,srw.h,cql.h}, so that
833 functions from there can be used from C++.
837 Frontend server now transfers memory from decoded packages to stream
840 NMEM now clears freed blocks with 'Y' (hex 59) to force bad memory
841 references to show up.
843 ZOOM-C now supports standard ZOOM option names as described in v1.4 of
844 the ZOOM Abstract API. The older names for the same options are still
845 also supported for the benefit of old applications.
847 ZOOM-C supports "implementationId" and "implementationVersion" options
848 to go along with "implementationName". These allow the user code to
849 specify identification strings to be sent to servers.
850 Add OID for the new ExtLite attribute set.
852 Add OIDs for NACSIS-CATP, FINMARC2000 and MARC21-fin record-syntaxes,
853 as requested/supplid by Ere Maijala <ere@atp.fi>
855 For generic frontend server, reverse the order of
856 "toolkit-supplied / application-supplied" strings sent as implementationId,
857 Name and Version. Also, remove the spaces around the slash. This brings
858 the GFS in line with the behaviour of ZOOM-C on the client side.
860 Add function ZOOM_scanset_display_term.
862 yaz-client shows scan displayTerm if present.
864 Utility yaz-iconv is now installed by default along with the man page
867 Extend configure check for OpenSSL to use pkg-config where available (such
870 Incorporate patch by Morten Bogeskov which allows a Unix file socket
871 server to specify uid/gid/mask for socket using the format
872 unix:[user=uid,][group=gid,][umask=mask,]file=path
873 If file= is omitted the existing format is assumed, e.g.
875 in which case the mask is 0666 (rw for everybody).
877 Major restructure of YAZ source. All source in libyaz is in src directory.
878 Programs in client (yaz-client), ztest (yaz-ztest), zoom (zoom programs),
879 util (utility programs such as ASN.1 compiler, yaz-marcdump).
881 Added man page for utility yaz-marcdump (used to be called marcdump).
882 yaz-marcdump is installed by 'make install'.
884 Fixed a memory leak in Generic Frontend Server that occurred when decoding
885 of incoming package failed.
887 Fixed a potential DOS attack vulnerability in COMSTACK/ODR.
889 Change prototype of odr_perror: add const to message string.
891 New function yaz_log_reopen which reopens log file (for log rotate, etc.)
893 * Blocking parameter for COMSTACK cs_create is now a bit mask rather
894 than a blocking flag. Bit 0 is set for blocking, reset for non-blocking.
895 Bit 1 is set if cs_addrstr should avoid DNS lookup; reset for full
896 DNS lookup. There should not be any compatibility problems with this
897 assuming that blocking=1 or 0 is used.
899 Fix bad reference in UNIX comstack in function cs_addrstr.
901 Fix for compilation on AIX.
903 The generic front-end server (server/seshigh.c) now supports returning
904 Init diagnostics to the client in User-information-field, in
905 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
910 Allow any CQL relation (not just all,any,exact,scr).
912 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
913 that features the same UI.
915 Implemented command update0 in YAZ client which is equivalent to
916 update but uses old of Ext Update ASN.1.
918 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
919 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
920 Previously no OID was used for this info.
922 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
923 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
924 returns 'malformed search term' otherwise.
926 SortResponse member resultCount now set to NULL in sort handler of
929 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
932 Add three new utility functions for translating OIDs between various
933 formats -- symbolic name such as "Usmarc", minus-1-terminated int
934 arrays and dotted strings such as "1.2.840.10003.9.5.1":
935 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
936 char *oid_to_dotstring(const int *oid, char *oidbuf);
937 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
939 Reverted modifications for ES Update definition for z_IU0Update
940 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
941 is back to YAZ 2.0.2.
943 String value attributes for CCL parser.
945 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
946 which their FirstSearch server returns in Init responses, sometimes
947 carrying useful diagnostic information when Init fails. This has the
948 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
949 "z39.50/oclcui.asn", where its definition is somewhat different from
950 what OCLC document on their web-site, as required to interoperate with
953 Support for anonymous authentication in yaz-client. Use the command
956 * Fix the OID of the Index Data-local "admin" Extended Service from
957 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
958 the 1000, which indicates a locally-defined OID, was a mistake.
962 Fix CCL directive @case handling so that it affects string match for
963 both CCL keywords and qualifiers.
965 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
966 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
967 Decoder has been updated with ASN.1 changes as listed in
968 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
969 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
970 z_IUUpdate, remains unchanged.
972 ZOOM_record_get may now return a record in a specific character set.
973 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
974 "from" is the character set of record as returned by target. "to" is
975 the character set to be returned. If omitted, "to" is UTF-8.
977 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
979 New ODR utility, odr_getelement, which returns name of element for
980 which encoding/decoding failed.
982 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
983 in cases where a required element was omitted.
985 Bug fix: some MARC8 sequences were not converted.
987 New ZOOM option "step" which specifies number of records to be
988 retrieved in one chunk. Used in conjunction with "start" and "count".
990 SRW support for yaz-client. Use scheme http: to use it, e.g.
993 yaz-client no longer does (un)intelligent character set conversions
994 by default. Can be enabled with charset and marc_charset commands.
996 xmalloc trace fix for 64-bit systems such as DEC alpha.
998 Solaris 2.6 compile fix.
1000 New function, cql_strerror() translates SRW error codes, as returned
1001 by cql_transform_error(), into human-readable English strings. Used
1002 in yaz-client diagnostics when appropriate.
1004 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
1005 converts it into a type-1 query which is sent to the server. This
1006 makes CQL available for use with all Z-servers, as opposed to the tiny
1007 minority that can handle CQL queries themselves.
1009 --- 2.0.2 2003/04/28
1011 New Debian package layout similar to the Redhat Package layout.
1013 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
1014 and search result respectively.
1016 --- 2.0.1 2003/04/25
1018 Redhat package is now several packages: libyaz (runtime libraries),
1019 libyaz-devel (development and documentation, and yaz (utility programs).
1020 Package spec file by Morten Bøgeskov.
1022 New member 'schema' in struct bend_fetch_rr which the name of requested
1023 schema (SRW/SRU) for record (or NULL if none was given). The fetch
1024 handler MAY set this to reflect the schema of the returned record.
1026 New member 'display_term' in struct scan_entry. GFS now sets member entries
1027 and allocates scan entries to be filled by user scan handler. In previous
1028 version, entries member was allocated by the scan handler. That still works,
1029 but the GFS will ignore member display_term - assuming it was NOT set by
1030 the handler. The fact that the GFS now allocates the entries both allows
1031 for new members and makes a scan handler easier to write.
1033 Fix CQL lex buffer overflow.
1035 SRW/SRU recordPacking. For SRW default recordPacking is string. For
1036 SRU default recordPacking is string.
1038 SRU protocol support for frontend server.
1040 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
1042 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
1044 Added scan for the ZOOM shell (zoomsh).
1048 * String Identifers for Schemas (Amendment 5).
1049 http://lcweb.loc.gov/z3950/agency/amend/am5.html
1050 Old definition for schema
1051 Odr_oid *schema; /* OPT */
1056 Z_InternationalString *uri;
1057 #define Z_Schema_oid 1
1058 #define Z_Schema_uri 2
1061 * resultCount parameter to Sort Response (Amendment 1).
1062 http://lcweb.loc.gov/z3950/agency/amend/am1.html
1064 Support for SRW 1.0 over HTTP. This is an optional feature and
1065 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
1068 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
1069 on the same port. SRW SearchRetrieveRequests are mapped
1070 to bend_init,bend_search,bend_fetch,bend_close.
1072 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
1074 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
1075 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
1077 ZOOM connections are SRW based if schem http is used for hostname
1078 in connect, e.g. z = ZOOM_connection_new("http://myserver");
1079 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
1081 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
1082 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
1083 distance=n, order=true/false, relation=le, prox unit=word. If
1084 n is omitted, distance 1 is used.
1086 Fixed problem with C compiler include path in wrong order.
1088 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
1089 on Solaris. Patch from Ko van der Sloot.
1091 New MARC decode API. All new functions operate on a yaz_marc_t
1092 handle. The most important new functions are: yaz_marc_create,
1093 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
1094 decode and destroy respectively. Decoder can produce formats
1095 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
1096 include/yaz/marcdisp.h.
1098 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
1099 to UTF-8, UCS-32, wchar_t or Latin-1.
1101 * Prototypes for yaz_iconv_-functions moved to separate header
1102 include/yaz/yaz-iconv.h.
1104 Make a few private functions 'static' in unix.c. This prevents
1105 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
1107 For ZOOM connection, the options targetImplementation{Id,Name,Version}
1108 are set when Init Response is received.
1110 New function ZOOM_connection_error_x similar to ZOOM_connection_error
1111 but returns diagnostic set as well.
1113 New function yaz_strerror which is a portable wrapper for
1114 strerror/strerror_r/GetLastMessage.
1116 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
1117 is returned for MARC. If type is "oai", then OAI MARC is returned.
1119 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
1122 --- 1.9.2 2002/11/26
1124 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
1126 Fix bad race conditions on SIGTERM and terminate gracefully in
1129 Move retrieval (data1) module to Zebra since nobody seems to be
1132 Add GRS-1 render for ZOOM using same format as yaz-client.
1134 --- 1.9.1 2002/10/05
1136 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
1138 Fix broken ESpec handling in data1 module.
1140 SGML reader parses comments and makes them part of the data1 tree.
1142 Added several type casts so that YAZ compiles as C++ code.
1144 ZOOM didn't handle PDU encoding failures properly.
1146 Added more Bib-1 diagnostics (approved extensions).
1148 GNU configure: better check for iconv.
1150 More portable use of accept, getpeername. Check for socklen_t. Use
1151 int/size_t if socklen_t is not defined.
1155 PQF parser rejects bad queries - including those with extra
1156 characters in them. PQF parser used to silently ignore that.
1157 Cleaner API for PQF added, which allows you to get detailed
1158 error information for bad queries (see yaz/pquery.h).
1160 Fixed bug in ZOOM_record_get for type "database".
1162 Implemented mini iconv library supporting conversions between
1163 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
1165 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
1167 --- 1.8.9 2002/08/20
1169 Fixed ZOOM C record cache so that preferredRecordSyntax and
1170 elementSetName is used to check for already fetched records.
1172 --- 1.8.8 2002/08/02
1174 Added three members in bend_initrequest structure to facilitate
1175 character set negotiation.
1177 Fixed a bug in frontend server that could cause indefinite
1178 loops under rare conditions.
1180 Revised character set utilities (charneg.h) so that encoding
1181 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
1183 For PQF, directive @term <type> sets term type for Scan/Search.
1184 Here <type> is general, string, numeric, null. The term type
1185 is inherited - just like @attr.
1187 New call odr_set_charset that sets character set conversion for
1188 international-strings on a ODR stream. Prototype is:
1189 int odr_set_charset(ODR o, const char *to, const char *from);
1190 The InternationalString is still represented as C string in YAZ
1191 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
1192 won't). On the protocol level, you can use any encoding.
1194 Support for UNIX sockets in ZOOM.
1196 Solaris recv sometimes returns errno == ENOENT. It is treated as
1197 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
1199 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
1200 both client and server. Code by Morten Bøgeskov.
1202 --- 1.8.7 2002/05/22
1204 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
1205 that they can be used directly from Visual Basic. You must recompile
1206 your windows APP if you're using ZOOM.
1208 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
1209 Commands "lang" and "charset" sets language and character set respectively.
1210 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
1211 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
1213 Attributes from multiple CCL fields may be OR'ed rather than merged
1214 using directive "@field or". Fields are still merged by default -
1215 equivalent to "@field merge".
1217 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
1220 Fixed bug in zget for parameter ExtendedServicesResponse.
1224 --- 1.8.6 2002/03/25
1226 Added PQF feature: '@attr type=value' may be written as '@type=value'.
1228 Client displays USR.1:SearchResult-1 (hits per term).
1230 Additional Search Info for search in Generic Frontend Server.
1232 Fixed CCL parsing of "field=s".
1234 WIN32 installer - using the excellent NSIS software from nullsoft.
1236 Fixed CCL parsing of "field = - <number>".
1238 Added function yaz_marc_decode that decodes MARC for line mode
1239 display or XML (similar to that used by JZKit).
1241 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
1242 Z39.50. But ISO/ILL was, however.
1244 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
1245 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
1247 http://lcweb.loc.gov/z3950/agency/amend/am2.html
1248 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
1250 --- 1.8.5 2002/02/03
1252 New YAZ client features: Command completion and new commands:
1253 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
1254 Code provided by Jacob Poulsen.
1256 New call oid_trav, that visits all registered OIDs via callback.
1258 Function ZOOM_record_get now returns const char pointer rather than
1259 void pointer. It saves a lot of type casts.
1261 For YAZ client, command "auth" now allows you to set authentication
1262 in IdPass style. It is enabled when three tokens are given - order
1263 is user, group and password.
1265 Fix memory leaks in MARC record handling for ZOOM.
1267 New option for YAZ client, -k <kilobytes> that sets
1268 maximum record size. Similar to -k option for generic frontend
1269 server and yaz-ztest.
1271 More fixes for scan. Non-zero stepSize handled. OID's fixes.
1273 Prefix query parser reports "fail" when bad attribute set is given.
1275 Fix in MARC decoder. Proximity logging. Fix for attribute set
1276 in scan handler for server. Patches by Shigeru Ishida.
1278 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
1281 Configure option --with-openssl=<dir> now works when a directory is
1282 specified. Patch provided by Morten Bøgeskov.
1284 New option for YAZ client, -u <auth>, that sets authentication.
1286 ZOOM fix: error information was sometimes "missing", since error
1287 was cleared/reset too when it shouldn't.
1289 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
1291 --- 1.8.4 2002/01/04
1293 Scan for ZOOM API. New object ZOOM_scanset. New functions
1294 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
1295 ZOOM_scanset_destroy.
1297 New ZOOM function, ZOOM_connection_last_event, that returns type
1298 of last event (such as "receive data", "send data", "apdu received",
1301 New ZOOM option, schema, that specifies schema for retrieval.
1303 New CCL feature. Qualifiers can be aliases for one or more
1304 other qualifiers (if more than one is given, OR is used).
1306 ZOOM uses named result sets if target supports it.
1308 Two new YAZ client commands: . (dot, which sources a script of YAZ
1309 client commands), and ! (to execute shell command.). Implemented
1312 Working on Debian packages.
1314 --- 1.8.3 2001/11/19
1316 YAZ client enables named result sets only if target supports it.
1318 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
1320 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
1321 with key="host" to get same result.
1323 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
1324 Function Z3950_resultset_record(s) returns references to records
1325 "owned" by resultset. To become owner use Z3950_record_clone.
1327 Function z_ext_record handles Extended Services. Thanks to
1330 --- 1.8.2 2001/11/12
1332 CCL Parser fix: ignore token comma when dealing with and-lists.
1334 Documentation updates for COMSTACK.
1336 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
1337 Changed prototype Z3950_records. For some functions, int parameters
1338 were changed to size_t.
1340 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
1343 New MARC decode/display function, marc_display_exl, which properly rejects
1344 non-ISO2709 records. YAZ client uses it.
1346 --- 1.8.1 2001/10/29
1348 Fix bug: local attribute set wasn't set correctly in PQF strings.
1352 * Old Z39.50 codecs no longer supported.
1354 Added ZOOM C binding. See http://zoom.z3950.org/
1356 Renamed states for COMSTACKs to avoid confusion with events.
1358 Implemented cs_look and proper cs_rcvconnect.
1360 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
1362 Configure detects POSIX threads on OpenBSD.
1364 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
1365 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
1367 When error is returned from present handler, non-surrogate diagnostic
1368 is returned in present response (and fetch handler is no longer called).
1370 * Minor adjustments to pquery parser (PQF). Token characters may be
1371 escaped by using backslash (C-style).
1373 PQF parser allows string attribute values to be specified. For @attr,
1374 non-numeric characters after the equal-sign are treated as strings
1375 (e.g. @attr 9=title).
1377 CCL trunction character may be defined (@truncation in file)
1379 * function zget_ExtendedServicesRequest sets waitAction to
1380 waitIfPossible (was wait).
1382 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
1385 CCL operator names may be set in field definition files (CCL_bibset).
1386 See ccl/bib1 for an example.
1388 Fixes in ASN.1 compiler for C++ compatibility.
1390 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
1391 and "op_or" to avoid conflict with C++.
1393 Fixed problem with GNU readline detection on Redhat 7.0.
1395 Added step-size for Scan backend handler.
1397 Fixed bug that made the frontend server crash when no attribute
1398 set was specified for scan.
1400 Front-end server automatically switches to original working directory
1401 when installed as an NT service. Previously -w had to be specified to
1404 Added extended attributes for retrieval module (data1), so that data1
1405 records carry d1_readXML/SGML attributes. d1_read also supports
1406 null-data rules ( <tag/>)
1408 On UNIX when POSIX threads are available, a separate library libyazthread
1409 is created. Programmers should link with that library and the yaz library
1410 when using threads. The reason for the split was that some applications
1411 on Linux, such as Apache, doesn't work well when using shared objects that
1414 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
1415 (or any frontend server) in SSL mode by specifying ssl: followed by
1416 address. Only tested on UNIX.
1418 Added feature for CCL module. Virtual structure s=al or s=ol generates
1419 and-list and or-list respectively instead of phrase search.
1423 * Added prefix "yaz_" for the functions log_init.., log_file.. and
1424 log_mask_str. This was done to avoid name conflicts with other libraries
1425 (such as other PHP extensions).
1427 Added raw OID member for preferred record syntax (request_format_raw)
1428 and returned record syntax (output_format_raw) for backend fetch method.
1430 Config file yaz-config now accepts options so that it returns specific
1431 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
1433 Shared library support for UNIX using GNU libtool.
1435 * Modified backend interface. Request/Response struct's replaced by
1436 one read/write C struct. For example bend_fetchrequest and
1437 bend_fetchresult have been replaced by single bend_fetch_rr struct.
1438 Every handler - even search has to be registered in bend_init
1439 handler. This means that the YAZ library no longer refers to
1440 external functions and it makes it possible to make the whole
1441 thing a single DLL/SO.
1443 Added Segment handler for backend server.
1445 Added Zmbol/Zebra administrative functions to YAZ client.
1447 Threaded frontend server on UNIX (when POSIX Threads are available).
1448 Starting the server with option -T enables multi-threading.
1452 Added configure option --enable-comp/disable-comp to control use
1453 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
1454 located in sub directory asn.
1456 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
1457 in ${exec_prefix}/bin along with the other programs yaz-client and
1460 GNU automake used to maintain makefiles.
1462 Added several OID's.
1464 Changed retrieval module so that we can load records with no abstract
1465 syntax defined. Tagpaths in these records are fully composed of string
1468 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
1472 On UNIX, the generated makefile now supports a proper 'make install'.
1473 The prefix can be set via GNU configure to set the install location
1474 (default is /usr/local).
1476 * YAZ programs client and ztest were renamed to yaz-client and
1477 yaz-ztest to avoid conflicts when users install YAZ in "standard"
1478 locations, such as /usr/bin,/usr/local/bin,etc.
1480 * YAZ Header files were moved from include to include/yaz. YAZ Header
1481 files are referred to as include <yaz/log.h> rather than <log.h>.
1482 The YAZ include path (-I ..) is therefore the same as before. Programmers
1483 should update their #include statements or use -Ipath/include/yaz
1484 instead. The main motivation for doing this change is that YAZ header files
1485 can be installed in "standard" locations /usr/include,/usr/local/include
1486 without introducing conflicts, since ALL YAZ header files are stored
1487 in subdirectory yaz (under /usr/include for example).
1489 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
1490 rather than project/workspace files. We switched because project files
1491 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
1494 Changed name of logging function, logf, to yaz_log, to prevent name
1495 clash with some math-log functions. The YAZ header log.h defines logf
1496 to yaz_log (#define) so there should be no incompatibilities by this
1499 Added bend_start/bend_stop handlers for server. These handler are
1500 called on start/stop of server. For windows they are called whenever
1501 a service is started/stopped.
1503 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
1504 a fairly small ASN.1 compiler written in Tcl. The compiler is located
1505 in util/yc.tcl. The auto-generated C code structures are, in a few
1506 cases, incompatible with the old decoders. There are differences in the
1507 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
1508 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
1509 The preprocessor variable ASN_COMPILED is defined when the compiled
1510 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
1511 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
1512 wish to use the old encoders/decoders you can specify --disable-yc
1515 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
1516 version so that it supports both new - and old version of DB Update
1518 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
1519 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
1520 change. The name parameter can be set to 0 in which no name is specified
1521 for the construction. The macros odr_implicit and odr_explicit sets name
1522 parameter to zero for the construction involved. New macros
1523 odr_implicit_tag and odr_explicit_tag are similar to the others,
1524 except that a name parameter is added. For programmers' that don't use
1525 ODR they probably only need to change the call to z_APDU and z_External.
1527 Added access control facility by interfacing the TCP wrapper library.
1528 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
1529 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
1530 name of the daemon and enables the access control as specified in
1531 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
1533 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
1534 den Dool <H.M.vdnDool@kub.nl>.
1536 Added reference ID parameter to most functions in server API - refer
1537 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
1539 Changed name of ccl library to libccl.a (was ccl.a).
1541 Fixed bug in decoder for Explain (Category TargetInfo).
1543 Added support for GNU readline in client. Thanks to Jacob Poulsen
1544 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
1546 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
1547 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
1548 IMPLEMENTATION! This change was made to the development version before
1549 the ZIG decided to retract the amendment. If any users MUST be
1550 compatible with the original Update definition, PLEASE CONTACT US, and
1551 we will include a separate definition corresponding to the old Update
1552 ES. Note that because of the change to the ASN.1 of the
1553 TaskPackageRecordStructure we cannot define a single structure that
1554 will support both versions.
1556 * Added const modifier to buffer parameter for some ODR/BER encoding
1557 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
1558 completeWAIS, odr_dumpBER.
1560 Fixed bug in client.c which caused a crash when a scanResponse didn't
1561 contain positionOfTerm.
1563 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
1564 * will cause an error in a client if a non-YAZ target sends both a
1565 * list of Scan entries and non-surrogate diagnostics.
1567 Retrieval module enhancements. Tag sets may be typed in the reference
1568 to it. From the .abs-file the "tagset" directive takes a third optional
1569 integer type for the tag set referenced. From a .tag-file the "include"
1570 directive takes a third optional type as well. The old "type" directive
1571 in the tag set itself is still recognized but acts as the default type
1574 Backend interface change. Individual Scan terms returned from bend_scan
1575 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
1576 in include/backend.h.
1578 Retrieval module enhancements. Multiple tag sets and attribute sets may
1579 be specified in abstract syntax specs. Revised the error/warning for
1580 logging messages reported by the retrieval module when reading the
1583 Object Identifier system (oid_..) changed. The API is backwards
1584 compatible but the oid-routines now allocates new OID's when needed.
1585 Raw OID's may be specified in oid_getvalbyname.
1587 YAZ now uses GNU configure to generate Makefile(s).
1589 * Minor changes in some of the member names of DeleteResultSetRequest and
1590 DeleteResultSetResponse. See include/proto.h.
1592 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
1593 and added member 'languages' in TargetInfo (which was missing).
1595 Changed the way attribute sets are handled in the retrieval
1596 module. These are now cached, just like the abstract syntaxes
1599 Changed YAZ so that it links with compiled ASN.1.
1601 Added Explain-schema definitions and mapping routines. The following
1602 Explain categories have been implemented: AttributeDetails,
1603 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
1605 Fixed minor bug in Windows version of Server Library.
1607 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
1609 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
1611 Added EXTERNAL: UNIverse Resource Report (non-standard).
1613 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
1614 ENUMERATED and SET OF.
1616 * Added 'const' to some of the char pointer arguments for the
1617 functions, data1_read_node, data1_getelementbytagname,
1618 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
1621 Fixed bug in data1_insert_taggeddata - the last_child member of
1622 parent wasn't initialised.
1624 * Changed data1_read_record and data1_read_node so that the supplied
1625 "SGML"-buffer is read-only. In particular the resulting data1 - tree
1626 doesn't refer to any parts of the "SGML"-buffer.
1628 Fixed bug in server library (Windows version of statserv_remove).
1630 * Changed code so that it compiles as C++. The type definition
1631 of Odr_fun which is a member of Odr_arm was changed. The result is,
1632 that an explicit typecast is needed for the fun pointer when
1633 using Odr_arm - as in:
1634 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
1636 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
1638 Implemented the new structured date and time definition as approved
1639 by the ZIG. Added schemaId element to the specificTag in Espec-1
1640 (also approved at the last ZIG). Thanks to RVDM.
1642 Added some Object identifiers (RVDM).
1644 Changed the Update Extended Service (RVDM).
1646 Added command "refid" to client which specifies referenceId for
1647 the following requests.
1649 Implemented extended service handling for server. See ztest.c
1650 for an example as well as backend.h. New handlers are registerd
1651 in the Init handler.
1653 * Changed interface for sort in server.
1655 Added new members to statserv_options_block. It allows a server
1656 to read options from another source than just the command line. Thanks
1657 to Charles Woodfield.
1659 * Changed definition of Z_Triple in file prt-grs.h - member boolean
1660 renamed to zboolean. Some C++ compilers complained about the name.
1662 Minor changes to gils.abs. Added index 's' (sort) on title
1663 and date/time-last-modified.
1665 --- 1.4pl2 1998/1/30
1667 Fixed bug in server library regarding inetd mode (-i). This bug
1668 was introduced by release 1.4.
1670 --- 1.4pl1 1998/1/29
1672 Added sort facility in client and backend server interface.
1674 Fixed problem with dependencies in Makefile(s).
1676 Fixed bugs for encoders/decoders of extended services and
1679 Implemented sub-tree feature for schemas. Sub-trees are
1680 referenced in *.abs-files. See explain.abs for an example
1681 of the use of this feature.
1683 Modified bib1.att; local attributes for ANY didn't include
1684 ANY itself (only affects use of the retrieval module).
1686 Fixed bug in plain SGML reader in function data1_read_node:
1687 tags with prefix "var" was incorrectly interpreted as variants.
1689 Added feature "sub-schemas" to enable references to - and definitions
1690 of - group of elements.
1692 * Removed member parent from type data1_element (in data1.h).
1694 Implemented function odr_nullval() that returns the value of
1697 * Removed member num_children from data1_node (in data1.h).
1699 Made NT service interface part of the server library. The
1700 function statserv_main uses the NT service when required and
1701 calls the statserv_start / statserv_close routines.
1703 Routine zget_SearchRequest and zget_PresentRequest fills
1704 resultSetName/Id member with "default" instead of "Default".
1706 Fixed memory leak in server. Request queue member wasn't freed.
1708 Fixed nmem_exit so that memory is freed.
1712 Revised the CCL parser utility to be thread safe.
1714 Added function, oid_ent_to_oid, to replace the function
1715 oid_getoidbyent, which is not thread safe.
1717 * Added nmem_init and nmem_exit to initialize and release
1718 NMEM resources. Function nmem_init should be called once in the
1719 initial thread before NMEM/ODR is used. statserv.c and client.c
1720 have been changed accordingly. The change was necessary to make
1721 NMEM thread safe. The NMEM memory pool is shared amongst threads
1722 in a process. Unix-based applications will still work fine without
1725 Added NT Services interface for the the Z39.50 (statserv) Server.
1726 Refer to the ztest.c source on the usage.
1728 Windows 95/NT port using MSVC5.0. Project files are included in the
1731 * Defined new 'global' handle for the retrieval (data1) system. The
1732 new handled, data1_handle, describes the state of the data1 system.
1733 This handle is passed as first argument to virtually all
1734 data1 related routines. The functions data1_create and data1_destroy
1735 creates and destroys a data1 handle respectively.
1737 Added ODR encode stream member to all backend request structures
1738 init, search, scan etc. This stream should be used to allocate all
1739 memory used for the response when thread safe operation is needed.
1741 Changed the comstack utility, cs_addstr, to be thread safe. The
1742 returned hostname string returned by the function is now part the
1745 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
1746 function. The cs_straddr takes a COMSTACK handle as argument, so this
1747 function must be used after cs_create and before bind/connect.
1748 This function is thread safe.
1750 Moved test server to 'ztest' directory - generic server code still
1751 in 'server' directory.
1753 Made prefix query (pquery.c) utility thread safe.
1755 Added new function modifier YAZ_EXPORT to 'export' public DLL
1756 functions when using windows (see include/yconfig.h).
1758 Added definitions to the OID database (util/oid.c) (RVDM).
1760 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
1762 Added call to ccl_rpn_delete in client program.
1764 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
1765 release of RPN structure.
1767 Added support for C++, headers uses extern "C" for public definitions.
1768 With input from RVDM.
1770 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
1771 Thanks to Ronald van der Meer (RVDM).
1773 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
1775 Added support for private extensions to the OID database
1776 (oid_setprivateoids()). Thanks to RVDM.
1778 Added optional, physical ANY (key replication)
1780 Fixed null-reference problem in GRS-1 output filter.
1782 Proximity operator added to Prefix Query Format (PQF).
1784 In test client command "base" accepts multiple databases.
1786 Fixed bug in cs_close stack that caused trouble with WINSOCK.
1790 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1792 Smallish bug-fixes in the new encoders/decoders (explain).
1794 Bug fixed in DeleteRequest.
1796 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
1798 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1800 Added SOIF syntax (using private OID for now) to retrieval module and client.
1802 Added Update extended service.
1804 Added SearchResult-1 additional info structure.
1806 Added optional CCL (ISO8777) interpreter as separate module. Available
1809 --- 1.2 1996/6/10 (1st anniversary release)
1811 Added Summary record syntax. Lightly tested.
1813 Added OPAC record syntax. Untested.
1815 Added ResourceReport service encoders/decoders. Untested.
1817 Fixed bug in z_Unit - wrong tagging on unitSystem.
1819 Fixed bug in the DiagRecs decoder.
1821 Added options for max PDU size and session timeout to frontend-server.
1823 Added documentation of query-language parsers and other supporting utilities.
1825 [frontend-server] Added Attribute set to the bend_scanrequest API.
1827 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
1828 surrogate diagnostics were generated.
1830 [retrieval] Allow multiple local values for attribute.
1832 [retrieval] Allow multiple attributes per element in .abs files. index type.
1834 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
1836 --- 1.1pl2 1996/4/10
1838 Minor changes, mostly specific to Zebra's requirements (retrieval)
1842 Repaired bug in frontend server when running multiple listening
1843 endpoints in dynamic mode.
1845 z_External() now won't break if a known, ASN.1 value comes encapsulated
1846 in an octet-string. The value will pass through unmodified in an Odr_oct.
1848 Added a bit of code to the demo client to decode & display
1849 ASN.1-structured records represented in the octet-aligned branch of
1850 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
1852 Added z_ext_getentbyref() to the ASN module. Doc updated.
1854 * Completed the SCAN definition in the ASN module. This may break SCAN
1855 code based on older YAZ-versions at compile-time. The fix is easy -
1858 * Added 'displayTerm' and OtherInformation to the TermInfo structure
1859 under the SCAN definition. Remember to initialize this, server-people.
1861 Comstack should now support the WAIS protocol in TCP/IP mode. Note
1862 that this does not extend to ODR and ASN.
1864 Comstack allows insertion of established socket (primarily for
1865 inetd-operation of servers). Doc updated.
1867 Front-end server can now start from the inetd in TCP mode. Doc
1870 --- 1.0pl4 1996/1/24
1874 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
1875 the rank and record number.
1877 Adjustments to the frontend server.
1879 Fixed diagnostic BER dumper. It ignored the file argument.
1883 Various changes to retrieval module.
1885 Changed the union discriminators of the protocol files from enums to
1886 ints paired with #defines.
1888 *Changed oident.class to oident.oclass to avoid a reserved word in C++
1891 *Changed operator in the RPN structure to 'roperator', again to avoid a
1894 Fixed problems in Explain decoders/encoders.
1896 --- 1.0pl2 1995/12/6
1898 Memory bug in log module fixed.
1900 --- 1.0pl1 1995/12/5
1902 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1904 Bug in Explain DatabaseInfo module fixed.
1906 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1910 The shift to v1.0 signals that we now consider the *core* functionality
1911 of YAZ reasonably stable (the core being more or less equivalent to
1912 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1913 tested (Explain not at all - though that will happen soonish).
1915 Minor changes to code to support Windows port.
1917 Various minor changes after we're getting to use GRS-1 & co. more.
1919 Added Espec-1 format.
1921 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1922 of the protocol and it cannot be selected when encoding (maps into 'string'
1923 when decoding). Needed to talk to some servers.
1925 Demo client can request simple element set names.
1927 Added Diagnostic Format encoders/decoders.
1929 Added simple Close handling to frontend server (no hooks for resource
1930 reporting yet), and demonstration client.
1932 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1934 --- 1.0b3 1995/08/24
1936 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1937 handled incorrectly when records were requested in the searchResponse. This
1938 will only affect you if you use the frontend-server.
1940 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1941 Test-client will ask for and print GRS1. Ztest will return dummy records
1944 Added Explain encoders/decoders to the service-level API. Untested.
1946 Added Extended Services: Item Order encoders and decoders to the Service-
1947 level API. Untested. We could use a recent copy of the pertinent bits
1948 of the ILL protocol to add those bits.
1950 Added diagnostic format 1 encoders/decoders to the service-level API.
1953 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1954 odr_cons.c, which causes a more correct output.
1956 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1957 was always set to 0 when no records were requested in the searchRequest.
1959 * Added better external-handling. This shouldn't harm old code that
1960 *encodes* externals. It can break code that looks for a
1961 'single-ASN1-type' representation, since those types that are known
1962 are now decoded immediately. Look at the SUTRS sample code in
1963 seshigh.c and client.c. Documentation updated.
1965 Handling of structured records in bend_fetchresponse. Length -1 marks
1966 structured record, type is deduced from format field.
1968 --- 1.0b2 1995/06/27
1969 Fairly quick maintenance release to add SUTRS support.
1971 Fixed handling of SUTRS records in the demonstration client.
1973 * Added format field to the bend_fetchrequest and bend_fetchresponce
1974 structures of the backend API (frontend server). When the record is
1975 returned, the value of the format field is mapped to an OID. The
1976 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1977 of the record. The special value VAL_NONE in the bend_request means
1978 that no specific format was requested by the client. Documentation
1979 updated accordingly. Test server (ztest) will return a fixed dummy
1980 SUTRS record if your client requests SUTRS.
1982 Documentation updated accordingly.
1984 You can now set external libraries and RANLIB support in the top-level
1988 First public release.