1 Possible compatibility problems with earlier versions marked with '*'.
5 Use wrbuf_xmlputs_n instead of wrbuf_write_cdata to avoid clash with
8 Ensure zlib.dll is packed with Windows install.
12 Fix encoding of xsd:string to use text instead of CDATA.
14 Fix endless loop in CQL parser with unbalanced ".
16 Use a more compact way to store MARC-8 conversion tables.
18 --- 2.0.16 2004/03/16 Debian only
20 Oleg Kolobov Fixed a bug in yaz_iconv regarding conversion to
23 Update CQL parser to use new CQL 1.1 modifiers for booleans and
30 Another fix for decoding of XML packed records.
34 Fixes for Chunked encoding. White space not ignored after length spec.
36 Update NS and use default NS for SRW diagnostic elements.
40 Implement ZOOM_resultset_cache_reset which resets record cache.
42 Implement ZOOM_resultset_sort which sorts a result set.
44 Implement chunked HTTP transfer.
46 For SSL, use -lssl -lcrypto on systems that don't have pkg-config.
50 Added member 'schema' to bend_explain_rr structure so that backend
51 can specify explain record identifier. Defaults to Zeerex 2.0.
53 Fix encoding of OID's of form 1.0.X. Bug introduced in 2.0.11.
57 * SRW/SRU 1.1 updates: updated diagnostic in srw.h to use uri instead
60 Added init command for yaz-client which sends "extra" init request.
62 Fixed two bugs in OID codec - ber_oidc. Throw error when encoding/decoding
63 bad truncated OID. Fix decoding of OID X.Y... when X=2 and Y>39.
65 Fixed a bug in ASN.1 compiler that caused Type-1 Operator codec to fail.
67 Make ZOOM error code for "invalid query".
69 Fixed compilation for SSL which wasn't properly enabled for all platforms.
73 For yaz.m4, allow second argument for YAZ_INIT to hold minimal version of
76 * SRW/SRU 1.1 updates. Diagnostic code now a URI.
78 Added option -p <file> to make Generic Frontend Server to write PID file.
80 Added option -D to put Generic Frontend Server in background on its own.
82 Make ZOOM C recognize option "password". If unset, "pass" is used
83 (for backwards compatibility).
85 Fixed a bug in Generic Frontend Server that could make it crash if a
86 client sets characterSetNegotation bit, but didn't pass negotiation stuff
89 New YAZ client command, zversion, that sets Z39.50 version (1,2,3..).
90 Must be issued before open, in order to be in effect.
92 --- 2.0.9-6 2004/01/12 Debian/Windows
94 Make the SRU server more picky WRT unknown params, etc.
96 Bug fix: ZOOM scan response didn't return displayTerm - when present.
98 New YAZ client command, options, that sets Z39.50 options.
100 New utility functions yaz_init_opt_{encode,decode} to encode/decode Z39.50
101 options from a string of tokens (one token for each option bit).
103 Update SRW diagnostic code messages.
105 --- 2.0.9-5 2004/01/07 Debian/Windows
107 Handle user defined stylesheet for SRW/SRU.
109 --- 2.0.9-4 2004/01/06 Debian/Windows
111 Fix bug in decoding of Content-Length.
113 --- 2.0.9-3 2004/01/06 Debian/Windows
115 Fix a bug with decoding of XML packed records.
117 --- 2.0.9-2 2004/01/05 Debian only
119 Allow empty ODR (NMEM=0) for odr_oiddup and odr_getoidbystr.
121 Fix bug in SRW/SRU diagnostics decoding.
125 Fixed bug in Generic Frontend Server which could drop records exceeding
126 preferred message size. Reported and fixed by Irina Dijour.
128 Fixed calculation of package size for structured records in Generic
129 Frontend Server. Reported and fixed by Irina Dijour.
131 Fixed namespace for SRW/SRU diagnostics.
133 Fixed SEGV in yaz-client that occured for HTTP connection errors.
137 * SRW/SRU 1.1. Since the Namespace has changed for SRW/SRU, it means that
138 this version is incompatible with version 1.0 and older YAZ SRW/SRU
141 CQL changes to reflect recent changes to the specification:
142 * Documentation talks about context sets instead of index sets.
143 * Documentation talks about indexes instead of qualifiers.
144 * The CQL-to-PQF transformer's configuration file now uses
145 "index.set.name = <attributes>" instead of the old form
146 "qualifier.set.name = <attributes>". (Both forms are still
147 understood but the latter is deprecated.)
148 * CQL terms with no explicit index specified are now interpreted as
149 cql.serverChoice instead of srw.serverChoice (which of course
150 behaves exactly the same.)
154 MARC conversion can now generate ISO2709 output in another
155 character set. yaz-marcdump uses this facility if you invoke it
158 Added missing C decl macros for include/yaz/{soap.h,srw.h,cql.h}, so that
159 functions from there can be used from C++.
163 Frontend server now transfers memory from decoded packages to stream
166 NMEM now clears freed blocks with 'Y' (hex 59) to force bad memory
167 references to show up.
169 ZOOM-C now supports standard ZOOM option names as described in v1.4 of
170 the ZOOM Abstract API. The older names for the same options are still
171 also supported for the benefit of old applications.
173 ZOOM-C supports "implementationId" and "implementationVersion" options
174 to go along with "implementationName". These allow the user code to
175 specify identification strings to be sent to servers.
176 Add OID for the new ExtLite attribute set.
178 Add OIDs for NACSIS-CATP, FINMARC2000 and MARC21-fin record-syntaxes,
179 as requested/supplid by Ere Maijala <ere@atp.fi>
181 For generic frontend server, reverse the order of
182 "toolkit-supplied / application-supplied" strings sent as implementationId,
183 Name and Version. Also, remove the spaces around the slash. This brings
184 the GFS in line with the behaviour of ZOOM-C on the client side.
186 Add function ZOOM_scanset_display_term.
188 yaz-client shows scan displayTerm if present.
190 Utility yaz-iconv is now installed by default along with the man page
193 Extend configure check for OpenSSL to use pkg-config where available (such
196 Incorporate patch by Morten Bogeskov which allows a Unix file socket
197 server to specify uid/gid/mask for socket using the format
198 unix:[user=uid,][group=gid,][umask=mask,]file=path
199 If file= is omitted the existing format is assumed, e.g.
201 in which case the mask is 0666 (rw for everybody).
203 Major restructure of YAZ source. All source in libyaz is in src directory.
204 Programs in client (yaz-client), ztest (yaz-ztest), zoom (zoom programs),
205 util (utility programs such as ASN.1 compiler, yaz-marcdump).
207 Added man page for utility yaz-marcdump (used to be called marcdump).
208 yaz-marcdump is installed by 'make install'.
210 Fixed a memory leak in Generic Frontend Server that occurred when decoding
211 of incoming package failed.
213 Fixed a potential DOS attack vulnerability in COMSTACK/ODR.
215 Change prototype of odr_perror: add const to message string.
217 New function yaz_log_reopen which reopens log file (for log rotate, etc.)
219 * Blocking parameter for COMSTACK cs_create is now a bit mask rather
220 than a blocking flag. Bit 0 is set for blocking, reset for non-blocking.
221 Bit 1 is set if cs_addrstr should avoid DNS lookup; reset for full
222 DNS lookup. There should not be any compatibility problems with this
223 assuming that blocking=1 or 0 is used.
225 Fix bad reference in UNIX comstack in function cs_addrstr.
227 Fix for compilation on AIX.
229 The generic front-end server (server/seshigh.c) now supports returning
230 Init diagnostics to the client in User-information-field, in
231 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
236 Allow any CQL relation (not just all,any,exact,scr).
238 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
239 that features the same UI.
241 Implemented command update0 in YAZ client which is equivalent to
242 update but uses old of Ext Update ASN.1.
244 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
245 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
246 Previously no OID was used for this info.
248 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
249 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
250 returns 'malformed search term' otherwise.
252 SortResponse member resultCount now set to NULL in sort handler of
255 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
258 Add three new utility functions for translating OIDs between various
259 formats -- symbolic name such as "Usmarc", minus-1-terminated int
260 arrays and dotted strings such as "1.2.840.10003.9.5.1":
261 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
262 char *oid_to_dotstring(const int *oid, char *oidbuf);
263 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
265 Reverted modifications for ES Update definition for z_IU0Update
266 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
267 is back to YAZ 2.0.2.
269 String value attributes for CCL parser.
271 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
272 which their FirstSearch server returns in Init responses, sometimes
273 carrying useful diagnostic information when Init fails. This has the
274 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
275 "z39.50/oclcui.asn", where its definition is somewhat different from
276 what OCLC document on their web-site, as required to interoperate with
279 Support for anonymous authentication in yaz-client. Use the command
282 * Fix the OID of the Index Data-local "admin" Extended Service from
283 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
284 the 1000, which indicates a locally-defined OID, was a mistake.
288 Fix CCL directive @case handling so that it affects string match for
289 both CCL keywords and qualifiers.
291 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
292 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
293 Decoder has been updated with ASN.1 changes as listed in
294 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
295 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
296 z_IUUpdate, remains unchanged.
298 ZOOM_record_get may now return a record in a specific character set.
299 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
300 "from" is the character set of record as returned by target. "to" is
301 the character set to be returned. If omitted, "to" is UTF-8.
303 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
305 New ODR utility, odr_getelement, which returns name of element for
306 which encoding/decoding failed.
308 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
309 in cases where a required element was omitted.
311 Bug fix: some MARC8 sequences were not converted.
313 New ZOOM option "step" which specifies number of records to be
314 retrieved in one chunk. Used in conjunction with "start" and "count".
316 SRW support for yaz-client. Use scheme http: to use it, e.g.
319 yaz-client no longer does (un)intelligent character set conversions
320 by default. Can be enabled with charset and marc_charset commands.
322 xmalloc trace fix for 64-bit systems such as DEC alpha.
324 Solaris 2.6 compile fix.
326 New function, cql_strerror() translates SRW error codes, as returned
327 by cql_transform_error(), into human-readable English strings. Used
328 in yaz-client diagnostics when appropriate.
330 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
331 converts it into a type-1 query which is sent to the server. This
332 makes CQL available for use with all Z-servers, as opposed to the tiny
333 minority that can handle CQL queries themselves.
337 New Debian package layout similar to the Redhat Package layout.
339 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
340 and search result respectively.
344 Redhat package is now several packages: libyaz (runtime libraries),
345 libyaz-devel (development and documentation, and yaz (utility programs).
346 Package spec file by Morten Bøgeskov.
348 New member 'schema' in struct bend_fetch_rr which the name of requested
349 schema (SRW/SRU) for record (or NULL if none was given). The fetch
350 handler MAY set this to reflect the schema of the returned record.
352 New member 'display_term' in struct scan_entry. GFS now sets member entries
353 and allocates scan entries to be filled by user scan handler. In previous
354 version, entries member was allocated by the scan handler. That still works,
355 but the GFS will ignore member display_term - assuming it was NOT set by
356 the handler. The fact that the GFS now allocates the entries both allows
357 for new members and makes a scan handler easier to write.
359 Fix CQL lex buffer overflow.
361 SRW/SRU recordPacking. For SRW default recordPacking is string. For
362 SRU default recordPacking is string.
364 SRU protocol support for frontend server.
366 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
368 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
370 Added scan for the ZOOM shell (zoomsh).
374 * String Identifers for Schemas (Amendment 5).
375 http://lcweb.loc.gov/z3950/agency/amend/am5.html
376 Old definition for schema
377 Odr_oid *schema; /* OPT */
382 Z_InternationalString *uri;
383 #define Z_Schema_oid 1
384 #define Z_Schema_uri 2
387 * resultCount parameter to Sort Response (Amendment 1).
388 http://lcweb.loc.gov/z3950/agency/amend/am1.html
390 Support for SRW 1.0 over HTTP. This is an optional feature and
391 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
394 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
395 on the same port. SRW SearchRetrieveRequests are mapped
396 to bend_init,bend_search,bend_fetch,bend_close.
398 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
400 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
401 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
403 ZOOM connections are SRW based if schem http is used for hostname
404 in connect, e.g. z = ZOOM_connection_new("http://myserver");
405 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
407 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
408 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
409 distance=n, order=true/false, relation=le, prox unit=word. If
410 n is omitted, distance 1 is used.
412 Fixed problem with C compiler include path in wrong order.
414 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
415 on Solaris. Patch from Ko van der Sloot.
417 New MARC decode API. All new functions operate on a yaz_marc_t
418 handle. The most important new functions are: yaz_marc_create,
419 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
420 decode and destroy respectively. Decoder can produce formats
421 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
422 include/yaz/marcdisp.h.
424 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
425 to UTF-8, UCS-32, wchar_t or Latin-1.
427 * Prototypes for yaz_iconv_-functions moved to separate header
428 include/yaz/yaz-iconv.h.
430 Make a few private functions 'static' in unix.c. This prevents
431 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
433 For ZOOM connection, the options targetImplementation{Id,Name,Version}
434 are set when Init Response is received.
436 New function ZOOM_connection_error_x similar to ZOOM_connection_error
437 but returns diagnostic set as well.
439 New function yaz_strerror which is a portable wrapper for
440 strerror/strerror_r/GetLastMessage.
442 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
443 is returned for MARC. If type is "oai", then OAI MARC is returned.
445 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
450 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
452 Fix bad race conditions on SIGTERM and terminate gracefully in
455 Move retrieval (data1) module to Zebra since nobody seems to be
458 Add GRS-1 render for ZOOM using same format as yaz-client.
462 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
464 Fix broken ESpec handling in data1 module.
466 SGML reader parses comments and makes them part of the data1 tree.
468 Added several type casts so that YAZ compiles as C++ code.
470 ZOOM didn't handle PDU encoding failures properly.
472 Added more Bib-1 diagnostics (approved extensions).
474 GNU configure: better check for iconv.
476 More portable use of accept, getpeername. Check for socklen_t. Use
477 int/size_t if socklen_t is not defined.
481 PQF parser rejects bad queries - including those with extra
482 characters in them. PQF parser used to silently ignore that.
483 Cleaner API for PQF added, which allows you to get detailed
484 error information for bad queries (see yaz/pquery.h).
486 Fixed bug in ZOOM_record_get for type "database".
488 Implemented mini iconv library supporting conversions between
489 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
491 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
495 Fixed ZOOM C record cache so that preferredRecordSyntax and
496 elementSetName is used to check for already fetched records.
500 Added three members in bend_initrequest structure to facilitate
501 character set negotiation.
503 Fixed a bug in frontend server that could cause indefinite
504 loops under rare conditions.
506 Revised character set utilities (charneg.h) so that encoding
507 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
509 For PQF, directive @term <type> sets term type for Scan/Search.
510 Here <type> is general, string, numeric, null. The term type
511 is inherited - just like @attr.
513 New call odr_set_charset that sets character set conversion for
514 international-strings on a ODR stream. Prototype is:
515 int odr_set_charset(ODR o, const char *to, const char *from);
516 The InternationalString is still represented as C string in YAZ
517 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
518 won't). On the protocol level, you can use any encoding.
520 Support for UNIX sockets in ZOOM.
522 Solaris recv sometimes returns errno == ENOENT. It is treated as
523 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
525 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
526 both client and server. Code by Morten Bøgeskov.
530 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
531 that they can be used directly from Visual Basic. You must recompile
532 your windows APP if you're using ZOOM.
534 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
535 Commands "lang" and "charset" sets language and character set respectively.
536 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
537 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
539 Attributes from multiple CCL fields may be OR'ed rather than merged
540 using directive "@field or". Fields are still merged by default -
541 equivalent to "@field merge".
543 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
546 Fixed bug in zget for parameter ExtendedServicesResponse.
552 Added PQF feature: '@attr type=value' may be written as '@type=value'.
554 Client displays USR.1:SearchResult-1 (hits per term).
556 Additional Search Info for search in Generic Frontend Server.
558 Fixed CCL parsing of "field=s".
560 WIN32 installer - using the excellent NSIS software from nullsoft.
562 Fixed CCL parsing of "field = - <number>".
564 Added function yaz_marc_decode that decodes MARC for line mode
565 display or XML (similar to that used by JZKit).
567 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
568 Z39.50. But ISO/ILL was, however.
570 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
571 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
573 http://lcweb.loc.gov/z3950/agency/amend/am2.html
574 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
578 New YAZ client features: Command completion and new commands:
579 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
580 Code provided by Jacob Poulsen.
582 New call oid_trav, that visits all registered OIDs via callback.
584 Function ZOOM_record_get now returns const char pointer rather than
585 void pointer. It saves a lot of type casts.
587 For YAZ client, command "auth" now allows you to set authentication
588 in IdPass style. It is enabled when three tokens are given - order
589 is user, group and password.
591 Fix memory leaks in MARC record handling for ZOOM.
593 New option for YAZ client, -k <kilobytes> that sets
594 maximum record size. Similar to -k option for generic frontend
595 server and yaz-ztest.
597 More fixes for scan. Non-zero stepSize handled. OID's fixes.
599 Prefix query parser reports "fail" when bad attribute set is given.
601 Fix in MARC decoder. Proximity logging. Fix for attribute set
602 in scan handler for server. Patches by Shigeru Ishida.
604 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
607 Configure option --with-openssl=<dir> now works when a directory is
608 specified. Patch provided by Morten Bøgeskov.
610 New option for YAZ client, -u <auth>, that sets authentication.
612 ZOOM fix: error information was sometimes "missing", since error
613 was cleared/reset too when it shouldn't.
615 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
619 Scan for ZOOM API. New object ZOOM_scanset. New functions
620 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
621 ZOOM_scanset_destroy.
623 New ZOOM function, ZOOM_connection_last_event, that returns type
624 of last event (such as "receive data", "send data", "apdu received",
627 New ZOOM option, schema, that specifies schema for retrieval.
629 New CCL feature. Qualifiers can be aliases for one or more
630 other qualifiers (if more than one is given, OR is used).
632 ZOOM uses named result sets if target supports it.
634 Two new YAZ client commands: . (dot, which sources a script of YAZ
635 client commands), and ! (to execute shell command.). Implemented
638 Working on Debian packages.
642 YAZ client enables named result sets only if target supports it.
644 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
646 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
647 with key="host" to get same result.
649 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
650 Function Z3950_resultset_record(s) returns references to records
651 "owned" by resultset. To become owner use Z3950_record_clone.
653 Function z_ext_record handles Extended Services. Thanks to
658 CCL Parser fix: ignore token comma when dealing with and-lists.
660 Documentation updates for COMSTACK.
662 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
663 Changed prototype Z3950_records. For some functions, int parameters
664 were changed to size_t.
666 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
669 New MARC decode/display function, marc_display_exl, which properly rejects
670 non-ISO2709 records. YAZ client uses it.
674 Fix bug: local attribute set wasn't set correctly in PQF strings.
678 * Old Z39.50 codecs no longer supported.
680 Added ZOOM C binding. See http://zoom.z3950.org/
682 Renamed states for COMSTACKs to avoid confusion with events.
684 Implemented cs_look and proper cs_rcvconnect.
686 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
688 Configure detects POSIX threads on OpenBSD.
690 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
691 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
693 When error is returned from present handler, non-surrogate diagnostic
694 is returned in present response (and fetch handler is no longer called).
696 * Minor adjustments to pquery parser (PQF). Token characters may be
697 escaped by using backslash (C-style).
699 PQF parser allows string attribute values to be specified. For @attr,
700 non-numeric characters after the equal-sign are treated as strings
701 (e.g. @attr 9=title).
703 CCL trunction character may be defined (@truncation in file)
705 * function zget_ExtendedServicesRequest sets waitAction to
706 waitIfPossible (was wait).
708 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
711 CCL operator names may be set in field definition files (CCL_bibset).
712 See ccl/bib1 for an example.
714 Fixes in ASN.1 compiler for C++ compatibility.
716 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
717 and "op_or" to avoid conflict with C++.
719 Fixed problem with GNU readline detection on Redhat 7.0.
721 Added step-size for Scan backend handler.
723 Fixed bug that made the frontend server crash when no attribute
724 set was specified for scan.
726 Front-end server automatically switches to original working directory
727 when installed as an NT service. Previously -w had to be specified to
730 Added extended attributes for retrieval module (data1), so that data1
731 records carry d1_readXML/SGML attributes. d1_read also supports
732 null-data rules ( <tag/>)
734 On UNIX when POSIX threads are available, a separate library libyazthread
735 is created. Programmers should link with that library and the yaz library
736 when using threads. The reason for the split was that some applications
737 on Linux, such as Apache, doesn't work well when using shared objects that
740 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
741 (or any frontend server) in SSL mode by specifying ssl: followed by
742 address. Only tested on UNIX.
744 Added feature for CCL module. Virtual structure s=al or s=ol generates
745 and-list and or-list respectively instead of phrase search.
749 * Added prefix "yaz_" for the functions log_init.., log_file.. and
750 log_mask_str. This was done to avoid name conflicts with other libraries
751 (such as other PHP extensions).
753 Added raw OID member for preferred record syntax (request_format_raw)
754 and returned record syntax (output_format_raw) for backend fetch method.
756 Config file yaz-config now accepts options so that it returns specific
757 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
759 Shared library support for UNIX using GNU libtool.
761 * Modified backend interface. Request/Response struct's replaced by
762 one read/write C struct. For example bend_fetchrequest and
763 bend_fetchresult have been replaced by single bend_fetch_rr struct.
764 Every handler - even search has to be registered in bend_init
765 handler. This means that the YAZ library no longer refers to
766 external functions and it makes it possible to make the whole
767 thing a single DLL/SO.
769 Added Segment handler for backend server.
771 Added Zmbol/Zebra administrative functions to YAZ client.
773 Threaded frontend server on UNIX (when POSIX Threads are available).
774 Starting the server with option -T enables multi-threading.
778 Added configure option --enable-comp/disable-comp to control use
779 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
780 located in sub directory asn.
782 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
783 in ${exec_prefix}/bin along with the other programs yaz-client and
786 GNU automake used to maintain makefiles.
790 Changed retrieval module so that we can load records with no abstract
791 syntax defined. Tagpaths in these records are fully composed of string
794 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
798 On UNIX, the generated makefile now supports a proper 'make install'.
799 The prefix can be set via GNU configure to set the install location
800 (default is /usr/local).
802 * YAZ programs client and ztest were renamed to yaz-client and
803 yaz-ztest to avoid conflicts when users install YAZ in "standard"
804 locations, such as /usr/bin,/usr/local/bin,etc.
806 * YAZ Header files were moved from include to include/yaz. YAZ Header
807 files are referred to as include <yaz/log.h> rather than <log.h>.
808 The YAZ include path (-I ..) is therefore the same as before. Programmers
809 should update their #include statements or use -Ipath/include/yaz
810 instead. The main motivation for doing this change is that YAZ header files
811 can be installed in "standard" locations /usr/include,/usr/local/include
812 without introducing conflicts, since ALL YAZ header files are stored
813 in subdirectory yaz (under /usr/include for example).
815 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
816 rather than project/workspace files. We switched because project files
817 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
820 Changed name of logging function, logf, to yaz_log, to prevent name
821 clash with some math-log functions. The YAZ header log.h defines logf
822 to yaz_log (#define) so there should be no incompatibilities by this
825 Added bend_start/bend_stop handlers for server. These handler are
826 called on start/stop of server. For windows they are called whenever
827 a service is started/stopped.
829 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
830 a fairly small ASN.1 compiler written in Tcl. The compiler is located
831 in util/yc.tcl. The auto-generated C code structures are, in a few
832 cases, incompatible with the old decoders. There are differences in the
833 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
834 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
835 The preprocessor variable ASN_COMPILED is defined when the compiled
836 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
837 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
838 wish to use the old encoders/decoders you can specify --disable-yc
841 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
842 version so that it supports both new - and old version of DB Update
844 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
845 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
846 change. The name parameter can be set to 0 in which no name is specified
847 for the construction. The macros odr_implicit and odr_explicit sets name
848 parameter to zero for the construction involved. New macros
849 odr_implicit_tag and odr_explicit_tag are similar to the others,
850 except that a name parameter is added. For programmers' that don't use
851 ODR they probably only need to change the call to z_APDU and z_External.
853 Added access control facility by interfacing the TCP wrapper library.
854 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
855 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
856 name of the daemon and enables the access control as specified in
857 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
859 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
860 den Dool <H.M.vdnDool@kub.nl>.
862 Added reference ID parameter to most functions in server API - refer
863 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
865 Changed name of ccl library to libccl.a (was ccl.a).
867 Fixed bug in decoder for Explain (Category TargetInfo).
869 Added support for GNU readline in client. Thanks to Jacob Poulsen
870 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
872 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
873 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
874 IMPLEMENTATION! This change was made to the development version before
875 the ZIG decided to retract the amendment. If any users MUST be
876 compatible with the original Update definition, PLEASE CONTACT US, and
877 we will include a separate definition corresponding to the old Update
878 ES. Note that because of the change to the ASN.1 of the
879 TaskPackageRecordStructure we cannot define a single structure that
880 will support both versions.
882 * Added const modifier to buffer parameter for some ODR/BER encoding
883 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
884 completeWAIS, odr_dumpBER.
886 Fixed bug in client.c which caused a crash when a scanResponse didn't
887 contain positionOfTerm.
889 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
890 * will cause an error in a client if a non-YAZ target sends both a
891 * list of Scan entries and non-surrogate diagnostics.
893 Retrieval module enhancements. Tag sets may be typed in the reference
894 to it. From the .abs-file the "tagset" directive takes a third optional
895 integer type for the tag set referenced. From a .tag-file the "include"
896 directive takes a third optional type as well. The old "type" directive
897 in the tag set itself is still recognized but acts as the default type
900 Backend interface change. Individual Scan terms returned from bend_scan
901 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
902 in include/backend.h.
904 Retrieval module enhancements. Multiple tag sets and attribute sets may
905 be specified in abstract syntax specs. Revised the error/warning for
906 logging messages reported by the retrieval module when reading the
909 Object Identifier system (oid_..) changed. The API is backwards
910 compatible but the oid-routines now allocates new OID's when needed.
911 Raw OID's may be specified in oid_getvalbyname.
913 YAZ now uses GNU configure to generate Makefile(s).
915 * Minor changes in some of the member names of DeleteResultSetRequest and
916 DeleteResultSetResponse. See include/proto.h.
918 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
919 and added member 'languages' in TargetInfo (which was missing).
921 Changed the way attribute sets are handled in the retrieval
922 module. These are now cached, just like the abstract syntaxes
925 Changed YAZ so that it links with compiled ASN.1.
927 Added Explain-schema definitions and mapping routines. The following
928 Explain categories have been implemented: AttributeDetails,
929 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
931 Fixed minor bug in Windows version of Server Library.
933 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
935 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
937 Added EXTERNAL: UNIverse Resource Report (non-standard).
939 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
940 ENUMERATED and SET OF.
942 * Added 'const' to some of the char pointer arguments for the
943 functions, data1_read_node, data1_getelementbytagname,
944 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
947 Fixed bug in data1_insert_taggeddata - the last_child member of
948 parent wasn't initialised.
950 * Changed data1_read_record and data1_read_node so that the supplied
951 "SGML"-buffer is read-only. In particular the resulting data1 - tree
952 doesn't refer to any parts of the "SGML"-buffer.
954 Fixed bug in server library (Windows version of statserv_remove).
956 * Changed code so that it compiles as C++. The type definition
957 of Odr_fun which is a member of Odr_arm was changed. The result is,
958 that an explicit typecast is needed for the fun pointer when
959 using Odr_arm - as in:
960 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
962 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
964 Implemented the new structured date and time definition as approved
965 by the ZIG. Added schemaId element to the specificTag in Espec-1
966 (also approved at the last ZIG). Thanks to RVDM.
968 Added some Object identifiers (RVDM).
970 Changed the Update Extended Service (RVDM).
972 Added command "refid" to client which specifies referenceId for
973 the following requests.
975 Implemented extended service handling for server. See ztest.c
976 for an example as well as backend.h. New handlers are registerd
979 * Changed interface for sort in server.
981 Added new members to statserv_options_block. It allows a server
982 to read options from another source than just the command line. Thanks
983 to Charles Woodfield.
985 * Changed definition of Z_Triple in file prt-grs.h - member boolean
986 renamed to zboolean. Some C++ compilers complained about the name.
988 Minor changes to gils.abs. Added index 's' (sort) on title
989 and date/time-last-modified.
993 Fixed bug in server library regarding inetd mode (-i). This bug
994 was introduced by release 1.4.
998 Added sort facility in client and backend server interface.
1000 Fixed problem with dependencies in Makefile(s).
1002 Fixed bugs for encoders/decoders of extended services and
1005 Implemented sub-tree feature for schemas. Sub-trees are
1006 referenced in *.abs-files. See explain.abs for an example
1007 of the use of this feature.
1009 Modified bib1.att; local attributes for ANY didn't include
1010 ANY itself (only affects use of the retrieval module).
1012 Fixed bug in plain SGML reader in function data1_read_node:
1013 tags with prefix "var" was incorrectly interpreted as variants.
1015 Added feature "sub-schemas" to enable references to - and definitions
1016 of - group of elements.
1018 * Removed member parent from type data1_element (in data1.h).
1020 Implemented function odr_nullval() that returns the value of
1023 * Removed member num_children from data1_node (in data1.h).
1025 Made NT service interface part of the server library. The
1026 function statserv_main uses the NT service when required and
1027 calls the statserv_start / statserv_close routines.
1029 Routine zget_SearchRequest and zget_PresentRequest fills
1030 resultSetName/Id member with "default" instead of "Default".
1032 Fixed memory leak in server. Request queue member wasn't freed.
1034 Fixed nmem_exit so that memory is freed.
1038 Revised the CCL parser utility to be thread safe.
1040 Added function, oid_ent_to_oid, to replace the function
1041 oid_getoidbyent, which is not thread safe.
1043 * Added nmem_init and nmem_exit to initialize and release
1044 NMEM resources. Function nmem_init should be called once in the
1045 initial thread before NMEM/ODR is used. statserv.c and client.c
1046 have been changed accordingly. The change was necessary to make
1047 NMEM thread safe. The NMEM memory pool is shared amongst threads
1048 in a process. Unix-based applications will still work fine without
1051 Added NT Services interface for the the Z39.50 (statserv) Server.
1052 Refer to the ztest.c source on the usage.
1054 Windows 95/NT port using MSVC5.0. Project files are included in the
1057 * Defined new 'global' handle for the retrieval (data1) system. The
1058 new handled, data1_handle, describes the state of the data1 system.
1059 This handle is passed as first argument to virtually all
1060 data1 related routines. The functions data1_create and data1_destroy
1061 creates and destroys a data1 handle respectively.
1063 Added ODR encode stream member to all backend request structures
1064 init, search, scan etc. This stream should be used to allocate all
1065 memory used for the response when thread safe operation is needed.
1067 Changed the comstack utility, cs_addstr, to be thread safe. The
1068 returned hostname string returned by the function is now part the
1071 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
1072 function. The cs_straddr takes a COMSTACK handle as argument, so this
1073 function must be used after cs_create and before bind/connect.
1074 This function is thread safe.
1076 Moved test server to 'ztest' directory - generic server code still
1077 in 'server' directory.
1079 Made prefix query (pquery.c) utility thread safe.
1081 Added new function modifier YAZ_EXPORT to 'export' public DLL
1082 functions when using windows (see include/yconfig.h).
1084 Added definitions to the OID database (util/oid.c) (RVDM).
1086 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
1088 Added call to ccl_rpn_delete in client program.
1090 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
1091 release of RPN structure.
1093 Added support for C++, headers uses extern "C" for public definitions.
1094 With input from RVDM.
1096 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
1097 Thanks to Ronald van der Meer (RVDM).
1099 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
1101 Added support for private extensions to the OID database
1102 (oid_setprivateoids()). Thanks to RVDM.
1104 Added optional, physical ANY (key replication)
1106 Fixed null-reference problem in GRS-1 output filter.
1108 Proximity operator added to Prefix Query Format (PQF).
1110 In test client command "base" accepts multiple databases.
1112 Fixed bug in cs_close stack that caused trouble with WINSOCK.
1116 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1118 Smallish bug-fixes in the new encoders/decoders (explain).
1120 Bug fixed in DeleteRequest.
1122 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
1124 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1126 Added SOIF syntax (using private OID for now) to retrieval module and client.
1128 Added Update extended service.
1130 Added SearchResult-1 additional info structure.
1132 Added optional CCL (ISO8777) interpreter as separate module. Available
1135 --- 1.2 1996/6/10 (1st anniversary release)
1137 Added Summary record syntax. Lightly tested.
1139 Added OPAC record syntax. Untested.
1141 Added ResourceReport service encoders/decoders. Untested.
1143 Fixed bug in z_Unit - wrong tagging on unitSystem.
1145 Fixed bug in the DiagRecs decoder.
1147 Added options for max PDU size and session timeout to frontend-server.
1149 Added documentation of query-language parsers and other supporting utilities.
1151 [frontend-server] Added Attribute set to the bend_scanrequest API.
1153 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
1154 surrogate diagnostics were generated.
1156 [retrieval] Allow multiple local values for attribute.
1158 [retrieval] Allow multiple attributes per element in .abs files. index type.
1160 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
1162 --- 1.1pl2 1996/4/10
1164 Minor changes, mostly specific to Zebra's requirements (retrieval)
1168 Repaired bug in frontend server when running multiple listening
1169 endpoints in dynamic mode.
1171 z_External() now won't break if a known, ASN.1 value comes encapsulated
1172 in an octet-string. The value will pass through unmodified in an Odr_oct.
1174 Added a bit of code to the demo client to decode & display
1175 ASN.1-structured records represented in the octet-aligned branch of
1176 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
1178 Added z_ext_getentbyref() to the ASN module. Doc updated.
1180 * Completed the SCAN definition in the ASN module. This may break SCAN
1181 code based on older YAZ-versions at compile-time. The fix is easy -
1184 * Added 'displayTerm' and OtherInformation to the TermInfo structure
1185 under the SCAN definition. Remember to initialize this, server-people.
1187 Comstack should now support the WAIS protocol in TCP/IP mode. Note
1188 that this does not extend to ODR and ASN.
1190 Comstack allows insertion of established socket (primarily for
1191 inetd-operation of servers). Doc updated.
1193 Front-end server can now start from the inetd in TCP mode. Doc
1196 --- 1.0pl4 1996/1/24
1200 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
1201 the rank and record number.
1203 Adjustments to the frontend server.
1205 Fixed diagnostic BER dumper. It ignored the file argument.
1209 Various changes to retrieval module.
1211 Changed the union discriminators of the protocol files from enums to
1212 ints paired with #defines.
1214 *Changed oident.class to oident.oclass to avoid a reserved word in C++
1217 *Changed operator in the RPN structure to 'roperator', again to avoid a
1220 Fixed problems in Explain decoders/encoders.
1222 --- 1.0pl2 1995/12/6
1224 Memory bug in log module fixed.
1226 --- 1.0pl1 1995/12/5
1228 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1230 Bug in Explain DatabaseInfo module fixed.
1232 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1236 The shift to v1.0 signals that we now consider the *core* functionality
1237 of YAZ reasonably stable (the core being more or less equivalent to
1238 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1239 tested (Explain not at all - though that will happen soonish).
1241 Minor changes to code to support Windows port.
1243 Various minor changes after we're getting to use GRS-1 & co. more.
1245 Added Espec-1 format.
1247 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1248 of the protocol and it cannot be selected when encoding (maps into 'string'
1249 when decoding). Needed to talk to some servers.
1251 Demo client can request simple element set names.
1253 Added Diagnostic Format encoders/decoders.
1255 Added simple Close handling to frontend server (no hooks for resource
1256 reporting yet), and demonstration client.
1258 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1260 --- 1.0b3 1995/08/24
1262 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1263 handled incorrectly when records were requested in the searchResponse. This
1264 will only affect you if you use the frontend-server.
1266 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1267 Test-client will ask for and print GRS1. Ztest will return dummy records
1270 Added Explain encoders/decoders to the service-level API. Untested.
1272 Added Extended Services: Item Order encoders and decoders to the Service-
1273 level API. Untested. We could use a recent copy of the pertinent bits
1274 of the ILL protocol to add those bits.
1276 Added diagnostic format 1 encoders/decoders to the service-level API.
1279 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1280 odr_cons.c, which causes a more correct output.
1282 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1283 was always set to 0 when no records were requested in the searchRequest.
1285 * Added better external-handling. This shouldn't harm old code that
1286 *encodes* externals. It can break code that looks for a
1287 'single-ASN1-type' representation, since those types that are known
1288 are now decoded immediately. Look at the SUTRS sample code in
1289 seshigh.c and client.c. Documentation updated.
1291 Handling of structured records in bend_fetchresponse. Length -1 marks
1292 structured record, type is deduced from format field.
1294 --- 1.0b2 1995/06/27
1295 Fairly quick maintenance release to add SUTRS support.
1297 Fixed handling of SUTRS records in the demonstration client.
1299 * Added format field to the bend_fetchrequest and bend_fetchresponce
1300 structures of the backend API (frontend server). When the record is
1301 returned, the value of the format field is mapped to an OID. The
1302 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1303 of the record. The special value VAL_NONE in the bend_request means
1304 that no specific format was requested by the client. Documentation
1305 updated accordingly. Test server (ztest) will return a fixed dummy
1306 SUTRS record if your client requests SUTRS.
1308 Documentation updated accordingly.
1310 You can now set external libraries and RANLIB support in the top-level
1314 First public release.