1 Possible compatibility problems with earlier versions marked with '*'.
3 --- 2.0.16 2004/03/16 Debian only
5 Oleg Kolobov Fixed a bug in yaz_iconv regarding conversion to
8 Update CQL parser to use new CQL 1.1 modifiers for booleans and
15 Another fix for decoding of XML packed records.
19 Fixes for Chunked encoding. White space not ignored after length spec.
21 Update NS and use default NS for SRW diagnostic elements.
25 Implement ZOOM_resultset_cache_reset which resets record cache.
27 Implement ZOOM_resultset_sort which sorts a result set.
29 Implement chunked HTTP transfer.
31 For SSL, use -lssl -lcrypto on systems that don't have pkg-config.
35 Added member 'schema' to bend_explain_rr structure so that backend
36 can specify explain record identifier. Defaults to Zeerex 2.0.
38 Fix encoding of OID's of form 1.0.X. Bug introduced in 2.0.11.
42 * SRW/SRU 1.1 updates: updated diagnostic in srw.h to use uri instead
45 Added init command for yaz-client which sends "extra" init request.
47 Fixed two bugs in OID codec - ber_oidc. Throw error when encoding/decoding
48 bad truncated OID. Fix decoding of OID X.Y... when X=2 and Y>39.
50 Fixed a bug in ASN.1 compiler that caused Type-1 Operator codec to fail.
52 Make ZOOM error code for "invalid query".
54 Fixed compilation for SSL which wasn't properly enabled for all platforms.
58 For yaz.m4, allow second argument for YAZ_INIT to hold minimal version of
61 * SRW/SRU 1.1 updates. Diagnostic code now a URI.
63 Added option -p <file> to make Generic Frontend Server to write PID file.
65 Added option -D to put Generic Frontend Server in background on its own.
67 Make ZOOM C recognize option "password". If unset, "pass" is used
68 (for backwards compatibility).
70 Fixed a bug in Generic Frontend Server that could make it crash if a
71 client sets characterSetNegotation bit, but didn't pass negotiation stuff
74 New YAZ client command, zversion, that sets Z39.50 version (1,2,3..).
75 Must be issued before open, in order to be in effect.
77 --- 2.0.9-6 2004/01/12 Debian/Windows
79 Make the SRU server more picky WRT unknown params, etc.
81 Bug fix: ZOOM scan response didn't return displayTerm - when present.
83 New YAZ client command, options, that sets Z39.50 options.
85 New utility functions yaz_init_opt_{encode,decode} to encode/decode Z39.50
86 options from a string of tokens (one token for each option bit).
88 Update SRW diagnostic code messages.
90 --- 2.0.9-5 2004/01/07 Debian/Windows
92 Handle user defined stylesheet for SRW/SRU.
94 --- 2.0.9-4 2004/01/06 Debian/Windows
96 Fix bug in decoding of Content-Length.
98 --- 2.0.9-3 2004/01/06 Debian/Windows
100 Fix a bug with decoding of XML packed records.
102 --- 2.0.9-2 2004/01/05 Debian only
104 Allow empty ODR (NMEM=0) for odr_oiddup and odr_getoidbystr.
106 Fix bug in SRW/SRU diagnostics decoding.
110 Fixed bug in Generic Frontend Server which could drop records exceeding
111 preferred message size. Reported and fixed by Irina Dijour.
113 Fixed calculation of package size for structured records in Generic
114 Frontend Server. Reported and fixed by Irina Dijour.
116 Fixed namespace for SRW/SRU diagnostics.
118 Fixed SEGV in yaz-client that occured for HTTP connection errors.
122 * SRW/SRU 1.1. Since the Namespace has changed for SRW/SRU, it means that
123 this version is incompatible with version 1.0 and older YAZ SRW/SRU
126 CQL changes to reflect recent changes to the specification:
127 * Documentation talks about context sets instead of index sets.
128 * Documentation talks about indexes instead of qualifiers.
129 * The CQL-to-PQF transformer's configuration file now uses
130 "index.set.name = <attributes>" instead of the old form
131 "qualifier.set.name = <attributes>". (Both forms are still
132 understood but the latter is deprecated.)
133 * CQL terms with no explicit index specified are now interpreted as
134 cql.serverChoice instead of srw.serverChoice (which of course
135 behaves exactly the same.)
139 MARC conversion can now generate ISO2709 output in another
140 character set. yaz-marcdump uses this facility if you invoke it
143 Added missing C decl macros for include/yaz/{soap.h,srw.h,cql.h}, so that
144 functions from there can be used from C++.
148 Frontend server now transfers memory from decoded packages to stream
151 NMEM now clears freed blocks with 'Y' (hex 59) to force bad memory
152 references to show up.
154 ZOOM-C now supports standard ZOOM option names as described in v1.4 of
155 the ZOOM Abstract API. The older names for the same options are still
156 also supported for the benefit of old applications.
158 ZOOM-C supports "implementationId" and "implementationVersion" options
159 to go along with "implementationName". These allow the user code to
160 specify identification strings to be sent to servers.
161 Add OID for the new ExtLite attribute set.
163 Add OIDs for NACSIS-CATP, FINMARC2000 and MARC21-fin record-syntaxes,
164 as requested/supplid by Ere Maijala <ere@atp.fi>
166 For generic frontend server, reverse the order of
167 "toolkit-supplied / application-supplied" strings sent as implementationId,
168 Name and Version. Also, remove the spaces around the slash. This brings
169 the GFS in line with the behaviour of ZOOM-C on the client side.
171 Add function ZOOM_scanset_display_term.
173 yaz-client shows scan displayTerm if present.
175 Utility yaz-iconv is now installed by default along with the man page
178 Extend configure check for OpenSSL to use pkg-config where available (such
181 Incorporate patch by Morten Bogeskov which allows a Unix file socket
182 server to specify uid/gid/mask for socket using the format
183 unix:[user=uid,][group=gid,][umask=mask,]file=path
184 If file= is omitted the existing format is assumed, e.g.
186 in which case the mask is 0666 (rw for everybody).
188 Major restructure of YAZ source. All source in libyaz is in src directory.
189 Programs in client (yaz-client), ztest (yaz-ztest), zoom (zoom programs),
190 util (utility programs such as ASN.1 compiler, yaz-marcdump).
192 Added man page for utility yaz-marcdump (used to be called marcdump).
193 yaz-marcdump is installed by 'make install'.
195 Fixed a memory leak in Generic Frontend Server that occurred when decoding
196 of incoming package failed.
198 Fixed a potential DOS attack vulnerability in COMSTACK/ODR.
200 Change prototype of odr_perror: add const to message string.
202 New function yaz_log_reopen which reopens log file (for log rotate, etc.)
204 * Blocking parameter for COMSTACK cs_create is now a bit mask rather
205 than a blocking flag. Bit 0 is set for blocking, reset for non-blocking.
206 Bit 1 is set if cs_addrstr should avoid DNS lookup; reset for full
207 DNS lookup. There should not be any compatibility problems with this
208 assuming that blocking=1 or 0 is used.
210 Fix bad reference in UNIX comstack in function cs_addrstr.
212 Fix for compilation on AIX.
214 The generic front-end server (server/seshigh.c) now supports returning
215 Init diagnostics to the client in User-information-field, in
216 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
221 Allow any CQL relation (not just all,any,exact,scr).
223 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
224 that features the same UI.
226 Implemented command update0 in YAZ client which is equivalent to
227 update but uses old of Ext Update ASN.1.
229 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
230 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
231 Previously no OID was used for this info.
233 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
234 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
235 returns 'malformed search term' otherwise.
237 SortResponse member resultCount now set to NULL in sort handler of
240 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
243 Add three new utility functions for translating OIDs between various
244 formats -- symbolic name such as "Usmarc", minus-1-terminated int
245 arrays and dotted strings such as "1.2.840.10003.9.5.1":
246 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
247 char *oid_to_dotstring(const int *oid, char *oidbuf);
248 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
250 Reverted modifications for ES Update definition for z_IU0Update
251 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
252 is back to YAZ 2.0.2.
254 String value attributes for CCL parser.
256 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
257 which their FirstSearch server returns in Init responses, sometimes
258 carrying useful diagnostic information when Init fails. This has the
259 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
260 "z39.50/oclcui.asn", where its definition is somewhat different from
261 what OCLC document on their web-site, as required to interoperate with
264 Support for anonymous authentication in yaz-client. Use the command
267 * Fix the OID of the Index Data-local "admin" Extended Service from
268 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
269 the 1000, which indicates a locally-defined OID, was a mistake.
273 Fix CCL directive @case handling so that it affects string match for
274 both CCL keywords and qualifiers.
276 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
277 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
278 Decoder has been updated with ASN.1 changes as listed in
279 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
280 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
281 z_IUUpdate, remains unchanged.
283 ZOOM_record_get may now return a record in a specific character set.
284 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
285 "from" is the character set of record as returned by target. "to" is
286 the character set to be returned. If omitted, "to" is UTF-8.
288 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
290 New ODR utility, odr_getelement, which returns name of element for
291 which encoding/decoding failed.
293 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
294 in cases where a required element was omitted.
296 Bug fix: some MARC8 sequences were not converted.
298 New ZOOM option "step" which specifies number of records to be
299 retrieved in one chunk. Used in conjunction with "start" and "count".
301 SRW support for yaz-client. Use scheme http: to use it, e.g.
304 yaz-client no longer does (un)intelligent character set conversions
305 by default. Can be enabled with charset and marc_charset commands.
307 xmalloc trace fix for 64-bit systems such as DEC alpha.
309 Solaris 2.6 compile fix.
311 New function, cql_strerror() translates SRW error codes, as returned
312 by cql_transform_error(), into human-readable English strings. Used
313 in yaz-client diagnostics when appropriate.
315 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
316 converts it into a type-1 query which is sent to the server. This
317 makes CQL available for use with all Z-servers, as opposed to the tiny
318 minority that can handle CQL queries themselves.
322 New Debian package layout similar to the Redhat Package layout.
324 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
325 and search result respectively.
329 Redhat package is now several packages: libyaz (runtime libraries),
330 libyaz-devel (development and documentation, and yaz (utility programs).
331 Package spec file by Morten Bøgeskov.
333 New member 'schema' in struct bend_fetch_rr which the name of requested
334 schema (SRW/SRU) for record (or NULL if none was given). The fetch
335 handler MAY set this to reflect the schema of the returned record.
337 New member 'display_term' in struct scan_entry. GFS now sets member entries
338 and allocates scan entries to be filled by user scan handler. In previous
339 version, entries member was allocated by the scan handler. That still works,
340 but the GFS will ignore member display_term - assuming it was NOT set by
341 the handler. The fact that the GFS now allocates the entries both allows
342 for new members and makes a scan handler easier to write.
344 Fix CQL lex buffer overflow.
346 SRW/SRU recordPacking. For SRW default recordPacking is string. For
347 SRU default recordPacking is string.
349 SRU protocol support for frontend server.
351 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
353 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
355 Added scan for the ZOOM shell (zoomsh).
359 * String Identifers for Schemas (Amendment 5).
360 http://lcweb.loc.gov/z3950/agency/amend/am5.html
361 Old definition for schema
362 Odr_oid *schema; /* OPT */
367 Z_InternationalString *uri;
368 #define Z_Schema_oid 1
369 #define Z_Schema_uri 2
372 * resultCount parameter to Sort Response (Amendment 1).
373 http://lcweb.loc.gov/z3950/agency/amend/am1.html
375 Support for SRW 1.0 over HTTP. This is an optional feature and
376 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
379 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
380 on the same port. SRW SearchRetrieveRequests are mapped
381 to bend_init,bend_search,bend_fetch,bend_close.
383 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
385 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
386 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
388 ZOOM connections are SRW based if schem http is used for hostname
389 in connect, e.g. z = ZOOM_connection_new("http://myserver");
390 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
392 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
393 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
394 distance=n, order=true/false, relation=le, prox unit=word. If
395 n is omitted, distance 1 is used.
397 Fixed problem with C compiler include path in wrong order.
399 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
400 on Solaris. Patch from Ko van der Sloot.
402 New MARC decode API. All new functions operate on a yaz_marc_t
403 handle. The most important new functions are: yaz_marc_create,
404 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
405 decode and destroy respectively. Decoder can produce formats
406 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
407 include/yaz/marcdisp.h.
409 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
410 to UTF-8, UCS-32, wchar_t or Latin-1.
412 * Prototypes for yaz_iconv_-functions moved to separate header
413 include/yaz/yaz-iconv.h.
415 Make a few private functions 'static' in unix.c. This prevents
416 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
418 For ZOOM connection, the options targetImplementation{Id,Name,Version}
419 are set when Init Response is received.
421 New function ZOOM_connection_error_x similar to ZOOM_connection_error
422 but returns diagnostic set as well.
424 New function yaz_strerror which is a portable wrapper for
425 strerror/strerror_r/GetLastMessage.
427 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
428 is returned for MARC. If type is "oai", then OAI MARC is returned.
430 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
435 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
437 Fix bad race conditions on SIGTERM and terminate gracefully in
440 Move retrieval (data1) module to Zebra since nobody seems to be
443 Add GRS-1 render for ZOOM using same format as yaz-client.
447 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
449 Fix broken ESpec handling in data1 module.
451 SGML reader parses comments and makes them part of the data1 tree.
453 Added several type casts so that YAZ compiles as C++ code.
455 ZOOM didn't handle PDU encoding failures properly.
457 Added more Bib-1 diagnostics (approved extensions).
459 GNU configure: better check for iconv.
461 More portable use of accept, getpeername. Check for socklen_t. Use
462 int/size_t if socklen_t is not defined.
466 PQF parser rejects bad queries - including those with extra
467 characters in them. PQF parser used to silently ignore that.
468 Cleaner API for PQF added, which allows you to get detailed
469 error information for bad queries (see yaz/pquery.h).
471 Fixed bug in ZOOM_record_get for type "database".
473 Implemented mini iconv library supporting conversions between
474 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
476 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
480 Fixed ZOOM C record cache so that preferredRecordSyntax and
481 elementSetName is used to check for already fetched records.
485 Added three members in bend_initrequest structure to facilitate
486 character set negotiation.
488 Fixed a bug in frontend server that could cause indefinite
489 loops under rare conditions.
491 Revised character set utilities (charneg.h) so that encoding
492 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
494 For PQF, directive @term <type> sets term type for Scan/Search.
495 Here <type> is general, string, numeric, null. The term type
496 is inherited - just like @attr.
498 New call odr_set_charset that sets character set conversion for
499 international-strings on a ODR stream. Prototype is:
500 int odr_set_charset(ODR o, const char *to, const char *from);
501 The InternationalString is still represented as C string in YAZ
502 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
503 won't). On the protocol level, you can use any encoding.
505 Support for UNIX sockets in ZOOM.
507 Solaris recv sometimes returns errno == ENOENT. It is treated as
508 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
510 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
511 both client and server. Code by Morten Bøgeskov.
515 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
516 that they can be used directly from Visual Basic. You must recompile
517 your windows APP if you're using ZOOM.
519 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
520 Commands "lang" and "charset" sets language and character set respectively.
521 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
522 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
524 Attributes from multiple CCL fields may be OR'ed rather than merged
525 using directive "@field or". Fields are still merged by default -
526 equivalent to "@field merge".
528 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
531 Fixed bug in zget for parameter ExtendedServicesResponse.
537 Added PQF feature: '@attr type=value' may be written as '@type=value'.
539 Client displays USR.1:SearchResult-1 (hits per term).
541 Additional Search Info for search in Generic Frontend Server.
543 Fixed CCL parsing of "field=s".
545 WIN32 installer - using the excellent NSIS software from nullsoft.
547 Fixed CCL parsing of "field = - <number>".
549 Added function yaz_marc_decode that decodes MARC for line mode
550 display or XML (similar to that used by JZKit).
552 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
553 Z39.50. But ISO/ILL was, however.
555 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
556 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
558 http://lcweb.loc.gov/z3950/agency/amend/am2.html
559 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
563 New YAZ client features: Command completion and new commands:
564 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
565 Code provided by Jacob Poulsen.
567 New call oid_trav, that visits all registered OIDs via callback.
569 Function ZOOM_record_get now returns const char pointer rather than
570 void pointer. It saves a lot of type casts.
572 For YAZ client, command "auth" now allows you to set authentication
573 in IdPass style. It is enabled when three tokens are given - order
574 is user, group and password.
576 Fix memory leaks in MARC record handling for ZOOM.
578 New option for YAZ client, -k <kilobytes> that sets
579 maximum record size. Similar to -k option for generic frontend
580 server and yaz-ztest.
582 More fixes for scan. Non-zero stepSize handled. OID's fixes.
584 Prefix query parser reports "fail" when bad attribute set is given.
586 Fix in MARC decoder. Proximity logging. Fix for attribute set
587 in scan handler for server. Patches by Shigeru Ishida.
589 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
592 Configure option --with-openssl=<dir> now works when a directory is
593 specified. Patch provided by Morten Bøgeskov.
595 New option for YAZ client, -u <auth>, that sets authentication.
597 ZOOM fix: error information was sometimes "missing", since error
598 was cleared/reset too when it shouldn't.
600 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
604 Scan for ZOOM API. New object ZOOM_scanset. New functions
605 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
606 ZOOM_scanset_destroy.
608 New ZOOM function, ZOOM_connection_last_event, that returns type
609 of last event (such as "receive data", "send data", "apdu received",
612 New ZOOM option, schema, that specifies schema for retrieval.
614 New CCL feature. Qualifiers can be aliases for one or more
615 other qualifiers (if more than one is given, OR is used).
617 ZOOM uses named result sets if target supports it.
619 Two new YAZ client commands: . (dot, which sources a script of YAZ
620 client commands), and ! (to execute shell command.). Implemented
623 Working on Debian packages.
627 YAZ client enables named result sets only if target supports it.
629 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
631 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
632 with key="host" to get same result.
634 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
635 Function Z3950_resultset_record(s) returns references to records
636 "owned" by resultset. To become owner use Z3950_record_clone.
638 Function z_ext_record handles Extended Services. Thanks to
643 CCL Parser fix: ignore token comma when dealing with and-lists.
645 Documentation updates for COMSTACK.
647 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
648 Changed prototype Z3950_records. For some functions, int parameters
649 were changed to size_t.
651 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
654 New MARC decode/display function, marc_display_exl, which properly rejects
655 non-ISO2709 records. YAZ client uses it.
659 Fix bug: local attribute set wasn't set correctly in PQF strings.
663 * Old Z39.50 codecs no longer supported.
665 Added ZOOM C binding. See http://zoom.z3950.org/
667 Renamed states for COMSTACKs to avoid confusion with events.
669 Implemented cs_look and proper cs_rcvconnect.
671 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
673 Configure detects POSIX threads on OpenBSD.
675 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
676 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
678 When error is returned from present handler, non-surrogate diagnostic
679 is returned in present response (and fetch handler is no longer called).
681 * Minor adjustments to pquery parser (PQF). Token characters may be
682 escaped by using backslash (C-style).
684 PQF parser allows string attribute values to be specified. For @attr,
685 non-numeric characters after the equal-sign are treated as strings
686 (e.g. @attr 9=title).
688 CCL trunction character may be defined (@truncation in file)
690 * function zget_ExtendedServicesRequest sets waitAction to
691 waitIfPossible (was wait).
693 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
696 CCL operator names may be set in field definition files (CCL_bibset).
697 See ccl/bib1 for an example.
699 Fixes in ASN.1 compiler for C++ compatibility.
701 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
702 and "op_or" to avoid conflict with C++.
704 Fixed problem with GNU readline detection on Redhat 7.0.
706 Added step-size for Scan backend handler.
708 Fixed bug that made the frontend server crash when no attribute
709 set was specified for scan.
711 Front-end server automatically switches to original working directory
712 when installed as an NT service. Previously -w had to be specified to
715 Added extended attributes for retrieval module (data1), so that data1
716 records carry d1_readXML/SGML attributes. d1_read also supports
717 null-data rules ( <tag/>)
719 On UNIX when POSIX threads are available, a separate library libyazthread
720 is created. Programmers should link with that library and the yaz library
721 when using threads. The reason for the split was that some applications
722 on Linux, such as Apache, doesn't work well when using shared objects that
725 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
726 (or any frontend server) in SSL mode by specifying ssl: followed by
727 address. Only tested on UNIX.
729 Added feature for CCL module. Virtual structure s=al or s=ol generates
730 and-list and or-list respectively instead of phrase search.
734 * Added prefix "yaz_" for the functions log_init.., log_file.. and
735 log_mask_str. This was done to avoid name conflicts with other libraries
736 (such as other PHP extensions).
738 Added raw OID member for preferred record syntax (request_format_raw)
739 and returned record syntax (output_format_raw) for backend fetch method.
741 Config file yaz-config now accepts options so that it returns specific
742 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
744 Shared library support for UNIX using GNU libtool.
746 * Modified backend interface. Request/Response struct's replaced by
747 one read/write C struct. For example bend_fetchrequest and
748 bend_fetchresult have been replaced by single bend_fetch_rr struct.
749 Every handler - even search has to be registered in bend_init
750 handler. This means that the YAZ library no longer refers to
751 external functions and it makes it possible to make the whole
752 thing a single DLL/SO.
754 Added Segment handler for backend server.
756 Added Zmbol/Zebra administrative functions to YAZ client.
758 Threaded frontend server on UNIX (when POSIX Threads are available).
759 Starting the server with option -T enables multi-threading.
763 Added configure option --enable-comp/disable-comp to control use
764 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
765 located in sub directory asn.
767 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
768 in ${exec_prefix}/bin along with the other programs yaz-client and
771 GNU automake used to maintain makefiles.
775 Changed retrieval module so that we can load records with no abstract
776 syntax defined. Tagpaths in these records are fully composed of string
779 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
783 On UNIX, the generated makefile now supports a proper 'make install'.
784 The prefix can be set via GNU configure to set the install location
785 (default is /usr/local).
787 * YAZ programs client and ztest were renamed to yaz-client and
788 yaz-ztest to avoid conflicts when users install YAZ in "standard"
789 locations, such as /usr/bin,/usr/local/bin,etc.
791 * YAZ Header files were moved from include to include/yaz. YAZ Header
792 files are referred to as include <yaz/log.h> rather than <log.h>.
793 The YAZ include path (-I ..) is therefore the same as before. Programmers
794 should update their #include statements or use -Ipath/include/yaz
795 instead. The main motivation for doing this change is that YAZ header files
796 can be installed in "standard" locations /usr/include,/usr/local/include
797 without introducing conflicts, since ALL YAZ header files are stored
798 in subdirectory yaz (under /usr/include for example).
800 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
801 rather than project/workspace files. We switched because project files
802 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
805 Changed name of logging function, logf, to yaz_log, to prevent name
806 clash with some math-log functions. The YAZ header log.h defines logf
807 to yaz_log (#define) so there should be no incompatibilities by this
810 Added bend_start/bend_stop handlers for server. These handler are
811 called on start/stop of server. For windows they are called whenever
812 a service is started/stopped.
814 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
815 a fairly small ASN.1 compiler written in Tcl. The compiler is located
816 in util/yc.tcl. The auto-generated C code structures are, in a few
817 cases, incompatible with the old decoders. There are differences in the
818 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
819 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
820 The preprocessor variable ASN_COMPILED is defined when the compiled
821 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
822 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
823 wish to use the old encoders/decoders you can specify --disable-yc
826 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
827 version so that it supports both new - and old version of DB Update
829 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
830 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
831 change. The name parameter can be set to 0 in which no name is specified
832 for the construction. The macros odr_implicit and odr_explicit sets name
833 parameter to zero for the construction involved. New macros
834 odr_implicit_tag and odr_explicit_tag are similar to the others,
835 except that a name parameter is added. For programmers' that don't use
836 ODR they probably only need to change the call to z_APDU and z_External.
838 Added access control facility by interfacing the TCP wrapper library.
839 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
840 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
841 name of the daemon and enables the access control as specified in
842 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
844 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
845 den Dool <H.M.vdnDool@kub.nl>.
847 Added reference ID parameter to most functions in server API - refer
848 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
850 Changed name of ccl library to libccl.a (was ccl.a).
852 Fixed bug in decoder for Explain (Category TargetInfo).
854 Added support for GNU readline in client. Thanks to Jacob Poulsen
855 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
857 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
858 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
859 IMPLEMENTATION! This change was made to the development version before
860 the ZIG decided to retract the amendment. If any users MUST be
861 compatible with the original Update definition, PLEASE CONTACT US, and
862 we will include a separate definition corresponding to the old Update
863 ES. Note that because of the change to the ASN.1 of the
864 TaskPackageRecordStructure we cannot define a single structure that
865 will support both versions.
867 * Added const modifier to buffer parameter for some ODR/BER encoding
868 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
869 completeWAIS, odr_dumpBER.
871 Fixed bug in client.c which caused a crash when a scanResponse didn't
872 contain positionOfTerm.
874 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
875 * will cause an error in a client if a non-YAZ target sends both a
876 * list of Scan entries and non-surrogate diagnostics.
878 Retrieval module enhancements. Tag sets may be typed in the reference
879 to it. From the .abs-file the "tagset" directive takes a third optional
880 integer type for the tag set referenced. From a .tag-file the "include"
881 directive takes a third optional type as well. The old "type" directive
882 in the tag set itself is still recognized but acts as the default type
885 Backend interface change. Individual Scan terms returned from bend_scan
886 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
887 in include/backend.h.
889 Retrieval module enhancements. Multiple tag sets and attribute sets may
890 be specified in abstract syntax specs. Revised the error/warning for
891 logging messages reported by the retrieval module when reading the
894 Object Identifier system (oid_..) changed. The API is backwards
895 compatible but the oid-routines now allocates new OID's when needed.
896 Raw OID's may be specified in oid_getvalbyname.
898 YAZ now uses GNU configure to generate Makefile(s).
900 * Minor changes in some of the member names of DeleteResultSetRequest and
901 DeleteResultSetResponse. See include/proto.h.
903 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
904 and added member 'languages' in TargetInfo (which was missing).
906 Changed the way attribute sets are handled in the retrieval
907 module. These are now cached, just like the abstract syntaxes
910 Changed YAZ so that it links with compiled ASN.1.
912 Added Explain-schema definitions and mapping routines. The following
913 Explain categories have been implemented: AttributeDetails,
914 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
916 Fixed minor bug in Windows version of Server Library.
918 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
920 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
922 Added EXTERNAL: UNIverse Resource Report (non-standard).
924 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
925 ENUMERATED and SET OF.
927 * Added 'const' to some of the char pointer arguments for the
928 functions, data1_read_node, data1_getelementbytagname,
929 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
932 Fixed bug in data1_insert_taggeddata - the last_child member of
933 parent wasn't initialised.
935 * Changed data1_read_record and data1_read_node so that the supplied
936 "SGML"-buffer is read-only. In particular the resulting data1 - tree
937 doesn't refer to any parts of the "SGML"-buffer.
939 Fixed bug in server library (Windows version of statserv_remove).
941 * Changed code so that it compiles as C++. The type definition
942 of Odr_fun which is a member of Odr_arm was changed. The result is,
943 that an explicit typecast is needed for the fun pointer when
944 using Odr_arm - as in:
945 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
947 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
949 Implemented the new structured date and time definition as approved
950 by the ZIG. Added schemaId element to the specificTag in Espec-1
951 (also approved at the last ZIG). Thanks to RVDM.
953 Added some Object identifiers (RVDM).
955 Changed the Update Extended Service (RVDM).
957 Added command "refid" to client which specifies referenceId for
958 the following requests.
960 Implemented extended service handling for server. See ztest.c
961 for an example as well as backend.h. New handlers are registerd
964 * Changed interface for sort in server.
966 Added new members to statserv_options_block. It allows a server
967 to read options from another source than just the command line. Thanks
968 to Charles Woodfield.
970 * Changed definition of Z_Triple in file prt-grs.h - member boolean
971 renamed to zboolean. Some C++ compilers complained about the name.
973 Minor changes to gils.abs. Added index 's' (sort) on title
974 and date/time-last-modified.
978 Fixed bug in server library regarding inetd mode (-i). This bug
979 was introduced by release 1.4.
983 Added sort facility in client and backend server interface.
985 Fixed problem with dependencies in Makefile(s).
987 Fixed bugs for encoders/decoders of extended services and
990 Implemented sub-tree feature for schemas. Sub-trees are
991 referenced in *.abs-files. See explain.abs for an example
992 of the use of this feature.
994 Modified bib1.att; local attributes for ANY didn't include
995 ANY itself (only affects use of the retrieval module).
997 Fixed bug in plain SGML reader in function data1_read_node:
998 tags with prefix "var" was incorrectly interpreted as variants.
1000 Added feature "sub-schemas" to enable references to - and definitions
1001 of - group of elements.
1003 * Removed member parent from type data1_element (in data1.h).
1005 Implemented function odr_nullval() that returns the value of
1008 * Removed member num_children from data1_node (in data1.h).
1010 Made NT service interface part of the server library. The
1011 function statserv_main uses the NT service when required and
1012 calls the statserv_start / statserv_close routines.
1014 Routine zget_SearchRequest and zget_PresentRequest fills
1015 resultSetName/Id member with "default" instead of "Default".
1017 Fixed memory leak in server. Request queue member wasn't freed.
1019 Fixed nmem_exit so that memory is freed.
1023 Revised the CCL parser utility to be thread safe.
1025 Added function, oid_ent_to_oid, to replace the function
1026 oid_getoidbyent, which is not thread safe.
1028 * Added nmem_init and nmem_exit to initialize and release
1029 NMEM resources. Function nmem_init should be called once in the
1030 initial thread before NMEM/ODR is used. statserv.c and client.c
1031 have been changed accordingly. The change was necessary to make
1032 NMEM thread safe. The NMEM memory pool is shared amongst threads
1033 in a process. Unix-based applications will still work fine without
1036 Added NT Services interface for the the Z39.50 (statserv) Server.
1037 Refer to the ztest.c source on the usage.
1039 Windows 95/NT port using MSVC5.0. Project files are included in the
1042 * Defined new 'global' handle for the retrieval (data1) system. The
1043 new handled, data1_handle, describes the state of the data1 system.
1044 This handle is passed as first argument to virtually all
1045 data1 related routines. The functions data1_create and data1_destroy
1046 creates and destroys a data1 handle respectively.
1048 Added ODR encode stream member to all backend request structures
1049 init, search, scan etc. This stream should be used to allocate all
1050 memory used for the response when thread safe operation is needed.
1052 Changed the comstack utility, cs_addstr, to be thread safe. The
1053 returned hostname string returned by the function is now part the
1056 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
1057 function. The cs_straddr takes a COMSTACK handle as argument, so this
1058 function must be used after cs_create and before bind/connect.
1059 This function is thread safe.
1061 Moved test server to 'ztest' directory - generic server code still
1062 in 'server' directory.
1064 Made prefix query (pquery.c) utility thread safe.
1066 Added new function modifier YAZ_EXPORT to 'export' public DLL
1067 functions when using windows (see include/yconfig.h).
1069 Added definitions to the OID database (util/oid.c) (RVDM).
1071 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
1073 Added call to ccl_rpn_delete in client program.
1075 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
1076 release of RPN structure.
1078 Added support for C++, headers uses extern "C" for public definitions.
1079 With input from RVDM.
1081 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
1082 Thanks to Ronald van der Meer (RVDM).
1084 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
1086 Added support for private extensions to the OID database
1087 (oid_setprivateoids()). Thanks to RVDM.
1089 Added optional, physical ANY (key replication)
1091 Fixed null-reference problem in GRS-1 output filter.
1093 Proximity operator added to Prefix Query Format (PQF).
1095 In test client command "base" accepts multiple databases.
1097 Fixed bug in cs_close stack that caused trouble with WINSOCK.
1101 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1103 Smallish bug-fixes in the new encoders/decoders (explain).
1105 Bug fixed in DeleteRequest.
1107 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
1109 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1111 Added SOIF syntax (using private OID for now) to retrieval module and client.
1113 Added Update extended service.
1115 Added SearchResult-1 additional info structure.
1117 Added optional CCL (ISO8777) interpreter as separate module. Available
1120 --- 1.2 1996/6/10 (1st anniversary release)
1122 Added Summary record syntax. Lightly tested.
1124 Added OPAC record syntax. Untested.
1126 Added ResourceReport service encoders/decoders. Untested.
1128 Fixed bug in z_Unit - wrong tagging on unitSystem.
1130 Fixed bug in the DiagRecs decoder.
1132 Added options for max PDU size and session timeout to frontend-server.
1134 Added documentation of query-language parsers and other supporting utilities.
1136 [frontend-server] Added Attribute set to the bend_scanrequest API.
1138 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
1139 surrogate diagnostics were generated.
1141 [retrieval] Allow multiple local values for attribute.
1143 [retrieval] Allow multiple attributes per element in .abs files. index type.
1145 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
1147 --- 1.1pl2 1996/4/10
1149 Minor changes, mostly specific to Zebra's requirements (retrieval)
1153 Repaired bug in frontend server when running multiple listening
1154 endpoints in dynamic mode.
1156 z_External() now won't break if a known, ASN.1 value comes encapsulated
1157 in an octet-string. The value will pass through unmodified in an Odr_oct.
1159 Added a bit of code to the demo client to decode & display
1160 ASN.1-structured records represented in the octet-aligned branch of
1161 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
1163 Added z_ext_getentbyref() to the ASN module. Doc updated.
1165 * Completed the SCAN definition in the ASN module. This may break SCAN
1166 code based on older YAZ-versions at compile-time. The fix is easy -
1169 * Added 'displayTerm' and OtherInformation to the TermInfo structure
1170 under the SCAN definition. Remember to initialize this, server-people.
1172 Comstack should now support the WAIS protocol in TCP/IP mode. Note
1173 that this does not extend to ODR and ASN.
1175 Comstack allows insertion of established socket (primarily for
1176 inetd-operation of servers). Doc updated.
1178 Front-end server can now start from the inetd in TCP mode. Doc
1181 --- 1.0pl4 1996/1/24
1185 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
1186 the rank and record number.
1188 Adjustments to the frontend server.
1190 Fixed diagnostic BER dumper. It ignored the file argument.
1194 Various changes to retrieval module.
1196 Changed the union discriminators of the protocol files from enums to
1197 ints paired with #defines.
1199 *Changed oident.class to oident.oclass to avoid a reserved word in C++
1202 *Changed operator in the RPN structure to 'roperator', again to avoid a
1205 Fixed problems in Explain decoders/encoders.
1207 --- 1.0pl2 1995/12/6
1209 Memory bug in log module fixed.
1211 --- 1.0pl1 1995/12/5
1213 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1215 Bug in Explain DatabaseInfo module fixed.
1217 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1221 The shift to v1.0 signals that we now consider the *core* functionality
1222 of YAZ reasonably stable (the core being more or less equivalent to
1223 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1224 tested (Explain not at all - though that will happen soonish).
1226 Minor changes to code to support Windows port.
1228 Various minor changes after we're getting to use GRS-1 & co. more.
1230 Added Espec-1 format.
1232 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1233 of the protocol and it cannot be selected when encoding (maps into 'string'
1234 when decoding). Needed to talk to some servers.
1236 Demo client can request simple element set names.
1238 Added Diagnostic Format encoders/decoders.
1240 Added simple Close handling to frontend server (no hooks for resource
1241 reporting yet), and demonstration client.
1243 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1245 --- 1.0b3 1995/08/24
1247 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1248 handled incorrectly when records were requested in the searchResponse. This
1249 will only affect you if you use the frontend-server.
1251 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1252 Test-client will ask for and print GRS1. Ztest will return dummy records
1255 Added Explain encoders/decoders to the service-level API. Untested.
1257 Added Extended Services: Item Order encoders and decoders to the Service-
1258 level API. Untested. We could use a recent copy of the pertinent bits
1259 of the ILL protocol to add those bits.
1261 Added diagnostic format 1 encoders/decoders to the service-level API.
1264 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1265 odr_cons.c, which causes a more correct output.
1267 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1268 was always set to 0 when no records were requested in the searchRequest.
1270 * Added better external-handling. This shouldn't harm old code that
1271 *encodes* externals. It can break code that looks for a
1272 'single-ASN1-type' representation, since those types that are known
1273 are now decoded immediately. Look at the SUTRS sample code in
1274 seshigh.c and client.c. Documentation updated.
1276 Handling of structured records in bend_fetchresponse. Length -1 marks
1277 structured record, type is deduced from format field.
1279 --- 1.0b2 1995/06/27
1280 Fairly quick maintenance release to add SUTRS support.
1282 Fixed handling of SUTRS records in the demonstration client.
1284 * Added format field to the bend_fetchrequest and bend_fetchresponce
1285 structures of the backend API (frontend server). When the record is
1286 returned, the value of the format field is mapped to an OID. The
1287 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1288 of the record. The special value VAL_NONE in the bend_request means
1289 that no specific format was requested by the client. Documentation
1290 updated accordingly. Test server (ztest) will return a fixed dummy
1291 SUTRS record if your client requests SUTRS.
1293 Documentation updated accordingly.
1295 You can now set external libraries and RANLIB support in the top-level
1299 First public release.