1 Possible compatibility problems with earlier versions marked with '*'.
3 Added odr_set_stream which is is a more generic to odr_setprint.
4 odr_set_stream takes a stream handle, pointer to puts function and
5 pointer to close function. The close function - if non-NULL - will be
6 called during odr_destroy.
10 Fix buffer overrun in CQL parser when dealing with proximity (%).
12 Fixes for MARC-8 in yaz_iconv character set utilies. The MARC-8
13 to UTF-8/UCS conversion is now only based on codetables.xml.
15 yaz_marc_decode_buf sets leader pos 9 to "a" for MARCXML output.
19 Add support for more "commit changes" in ZOOM (uses Extended Services).
21 For yaz-client, command set_marcdump <file> / -m <file> dumps SUTRS/XML/..
24 Yet another small fix for configure of SSL.
28 Fix SSL libs for configure when --with-openssl=DIR is given.
32 Add autoconf m4 macro YAZ_DOC for YAZ documentation setup (docbook).
34 SSL comstack now uses yaz.pem certificate file on server side
35 by default. Certificate filename can be configured by calling
36 comstack function cs_set_ssl_certificate_file before cs_bind is used.
38 Fix bug regarding multiple calls to ZOOM_connection_connect.
40 Implement cs_set_ssl_ctx which sets SSL_CTX for SSL comstack.
42 Do not create SSL_CTX in cs_create (ssl_type). Create in tcpip_bind,
43 tcpip_rcvconnect instead. This allows user to set custom SSL_CTX.
45 ZOOM now allows inspection of X509 peer certificate for verification.
46 The X509 buffer is retrived by reading ZOOM option "sslPeerCert".
48 Removed libyazssl.la. When SSL is enabled, libyaz.la has SSL support and
49 all programs have too (yaz-ztest, yaz-client, zoom..). May not be
50 as "modular" but it simplifies things.
52 Added cs_get_peer_certificate to that returns peer X509 PEM.
54 Added cs_get_ssl that returns SSL handle (SSL *) for SSL comstack; returns
55 NULL if SSL is unavailable.
57 Documentation about MARC decoding tools.
59 Fix --disable-tcpd to really disable tcpd. Patch by Robin H. Johnson.
63 Rename CHANGELOG to NEWS to follow GNU style packing.
65 Fix bug with missing initialization of member in init_diagnostics.
66 This bug affects threaded version of GFS server.
70 Use wrbuf_xmlputs_n instead of wrbuf_write_cdata to avoid clash with
73 Ensure zlib.dll is packed with Windows install.
77 Fix encoding of xsd:string to use text instead of CDATA.
79 Fix endless loop in CQL parser with unbalanced ".
81 Use a more compact way to store MARC-8 conversion tables.
83 --- 2.0.16 2004/03/16 Debian only
85 Oleg Kolobov Fixed a bug in yaz_iconv regarding conversion to
88 Update CQL parser to use new CQL 1.1 modifiers for booleans and
95 Another fix for decoding of XML packed records.
99 Fixes for Chunked encoding. White space not ignored after length spec.
101 Update NS and use default NS for SRW diagnostic elements.
103 --- 2.0.13 2004/02/23
105 Implement ZOOM_resultset_cache_reset which resets record cache.
107 Implement ZOOM_resultset_sort which sorts a result set.
109 Implement chunked HTTP transfer.
111 For SSL, use -lssl -lcrypto on systems that don't have pkg-config.
113 --- 2.0.12 2004/02/16
115 Added member 'schema' to bend_explain_rr structure so that backend
116 can specify explain record identifier. Defaults to Zeerex 2.0.
118 Fix encoding of OID's of form 1.0.X. Bug introduced in 2.0.11.
120 --- 2.0.11 2004/02/16
122 * SRW/SRU 1.1 updates: updated diagnostic in srw.h to use uri instead
125 Added init command for yaz-client which sends "extra" init request.
127 Fixed two bugs in OID codec - ber_oidc. Throw error when encoding/decoding
128 bad truncated OID. Fix decoding of OID X.Y... when X=2 and Y>39.
130 Fixed a bug in ASN.1 compiler that caused Type-1 Operator codec to fail.
132 Make ZOOM error code for "invalid query".
134 Fixed compilation for SSL which wasn't properly enabled for all platforms.
136 --- 2.0.10 2004/02/05
138 For yaz.m4, allow second argument for YAZ_INIT to hold minimal version of
141 * SRW/SRU 1.1 updates. Diagnostic code now a URI.
143 Added option -p <file> to make Generic Frontend Server to write PID file.
145 Added option -D to put Generic Frontend Server in background on its own.
147 Make ZOOM C recognize option "password". If unset, "pass" is used
148 (for backwards compatibility).
150 Fixed a bug in Generic Frontend Server that could make it crash if a
151 client sets characterSetNegotation bit, but didn't pass negotiation stuff
154 New YAZ client command, zversion, that sets Z39.50 version (1,2,3..).
155 Must be issued before open, in order to be in effect.
157 --- 2.0.9-6 2004/01/12 Debian/Windows
159 Make the SRU server more picky WRT unknown params, etc.
161 Bug fix: ZOOM scan response didn't return displayTerm - when present.
163 New YAZ client command, options, that sets Z39.50 options.
165 New utility functions yaz_init_opt_{encode,decode} to encode/decode Z39.50
166 options from a string of tokens (one token for each option bit).
168 Update SRW diagnostic code messages.
170 --- 2.0.9-5 2004/01/07 Debian/Windows
172 Handle user defined stylesheet for SRW/SRU.
174 --- 2.0.9-4 2004/01/06 Debian/Windows
176 Fix bug in decoding of Content-Length.
178 --- 2.0.9-3 2004/01/06 Debian/Windows
180 Fix a bug with decoding of XML packed records.
182 --- 2.0.9-2 2004/01/05 Debian only
184 Allow empty ODR (NMEM=0) for odr_oiddup and odr_getoidbystr.
186 Fix bug in SRW/SRU diagnostics decoding.
190 Fixed bug in Generic Frontend Server which could drop records exceeding
191 preferred message size. Reported and fixed by Irina Dijour.
193 Fixed calculation of package size for structured records in Generic
194 Frontend Server. Reported and fixed by Irina Dijour.
196 Fixed namespace for SRW/SRU diagnostics.
198 Fixed SEGV in yaz-client that occured for HTTP connection errors.
202 * SRW/SRU 1.1. Since the Namespace has changed for SRW/SRU, it means that
203 this version is incompatible with version 1.0 and older YAZ SRW/SRU
206 CQL changes to reflect recent changes to the specification:
207 * Documentation talks about context sets instead of index sets.
208 * Documentation talks about indexes instead of qualifiers.
209 * The CQL-to-PQF transformer's configuration file now uses
210 "index.set.name = <attributes>" instead of the old form
211 "qualifier.set.name = <attributes>". (Both forms are still
212 understood but the latter is deprecated.)
213 * CQL terms with no explicit index specified are now interpreted as
214 cql.serverChoice instead of srw.serverChoice (which of course
215 behaves exactly the same.)
219 MARC conversion can now generate ISO2709 output in another
220 character set. yaz-marcdump uses this facility if you invoke it
223 Added missing C decl macros for include/yaz/{soap.h,srw.h,cql.h}, so that
224 functions from there can be used from C++.
228 Frontend server now transfers memory from decoded packages to stream
231 NMEM now clears freed blocks with 'Y' (hex 59) to force bad memory
232 references to show up.
234 ZOOM-C now supports standard ZOOM option names as described in v1.4 of
235 the ZOOM Abstract API. The older names for the same options are still
236 also supported for the benefit of old applications.
238 ZOOM-C supports "implementationId" and "implementationVersion" options
239 to go along with "implementationName". These allow the user code to
240 specify identification strings to be sent to servers.
241 Add OID for the new ExtLite attribute set.
243 Add OIDs for NACSIS-CATP, FINMARC2000 and MARC21-fin record-syntaxes,
244 as requested/supplid by Ere Maijala <ere@atp.fi>
246 For generic frontend server, reverse the order of
247 "toolkit-supplied / application-supplied" strings sent as implementationId,
248 Name and Version. Also, remove the spaces around the slash. This brings
249 the GFS in line with the behaviour of ZOOM-C on the client side.
251 Add function ZOOM_scanset_display_term.
253 yaz-client shows scan displayTerm if present.
255 Utility yaz-iconv is now installed by default along with the man page
258 Extend configure check for OpenSSL to use pkg-config where available (such
261 Incorporate patch by Morten Bogeskov which allows a Unix file socket
262 server to specify uid/gid/mask for socket using the format
263 unix:[user=uid,][group=gid,][umask=mask,]file=path
264 If file= is omitted the existing format is assumed, e.g.
266 in which case the mask is 0666 (rw for everybody).
268 Major restructure of YAZ source. All source in libyaz is in src directory.
269 Programs in client (yaz-client), ztest (yaz-ztest), zoom (zoom programs),
270 util (utility programs such as ASN.1 compiler, yaz-marcdump).
272 Added man page for utility yaz-marcdump (used to be called marcdump).
273 yaz-marcdump is installed by 'make install'.
275 Fixed a memory leak in Generic Frontend Server that occurred when decoding
276 of incoming package failed.
278 Fixed a potential DOS attack vulnerability in COMSTACK/ODR.
280 Change prototype of odr_perror: add const to message string.
282 New function yaz_log_reopen which reopens log file (for log rotate, etc.)
284 * Blocking parameter for COMSTACK cs_create is now a bit mask rather
285 than a blocking flag. Bit 0 is set for blocking, reset for non-blocking.
286 Bit 1 is set if cs_addrstr should avoid DNS lookup; reset for full
287 DNS lookup. There should not be any compatibility problems with this
288 assuming that blocking=1 or 0 is used.
290 Fix bad reference in UNIX comstack in function cs_addrstr.
292 Fix for compilation on AIX.
294 The generic front-end server (server/seshigh.c) now supports returning
295 Init diagnostics to the client in User-information-field, in
296 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
301 Allow any CQL relation (not just all,any,exact,scr).
303 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
304 that features the same UI.
306 Implemented command update0 in YAZ client which is equivalent to
307 update but uses old of Ext Update ASN.1.
309 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
310 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
311 Previously no OID was used for this info.
313 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
314 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
315 returns 'malformed search term' otherwise.
317 SortResponse member resultCount now set to NULL in sort handler of
320 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
323 Add three new utility functions for translating OIDs between various
324 formats -- symbolic name such as "Usmarc", minus-1-terminated int
325 arrays and dotted strings such as "1.2.840.10003.9.5.1":
326 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
327 char *oid_to_dotstring(const int *oid, char *oidbuf);
328 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
330 Reverted modifications for ES Update definition for z_IU0Update
331 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
332 is back to YAZ 2.0.2.
334 String value attributes for CCL parser.
336 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
337 which their FirstSearch server returns in Init responses, sometimes
338 carrying useful diagnostic information when Init fails. This has the
339 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
340 "z39.50/oclcui.asn", where its definition is somewhat different from
341 what OCLC document on their web-site, as required to interoperate with
344 Support for anonymous authentication in yaz-client. Use the command
347 * Fix the OID of the Index Data-local "admin" Extended Service from
348 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
349 the 1000, which indicates a locally-defined OID, was a mistake.
353 Fix CCL directive @case handling so that it affects string match for
354 both CCL keywords and qualifiers.
356 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
357 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
358 Decoder has been updated with ASN.1 changes as listed in
359 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
360 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
361 z_IUUpdate, remains unchanged.
363 ZOOM_record_get may now return a record in a specific character set.
364 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
365 "from" is the character set of record as returned by target. "to" is
366 the character set to be returned. If omitted, "to" is UTF-8.
368 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
370 New ODR utility, odr_getelement, which returns name of element for
371 which encoding/decoding failed.
373 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
374 in cases where a required element was omitted.
376 Bug fix: some MARC8 sequences were not converted.
378 New ZOOM option "step" which specifies number of records to be
379 retrieved in one chunk. Used in conjunction with "start" and "count".
381 SRW support for yaz-client. Use scheme http: to use it, e.g.
384 yaz-client no longer does (un)intelligent character set conversions
385 by default. Can be enabled with charset and marc_charset commands.
387 xmalloc trace fix for 64-bit systems such as DEC alpha.
389 Solaris 2.6 compile fix.
391 New function, cql_strerror() translates SRW error codes, as returned
392 by cql_transform_error(), into human-readable English strings. Used
393 in yaz-client diagnostics when appropriate.
395 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
396 converts it into a type-1 query which is sent to the server. This
397 makes CQL available for use with all Z-servers, as opposed to the tiny
398 minority that can handle CQL queries themselves.
402 New Debian package layout similar to the Redhat Package layout.
404 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
405 and search result respectively.
409 Redhat package is now several packages: libyaz (runtime libraries),
410 libyaz-devel (development and documentation, and yaz (utility programs).
411 Package spec file by Morten Bøgeskov.
413 New member 'schema' in struct bend_fetch_rr which the name of requested
414 schema (SRW/SRU) for record (or NULL if none was given). The fetch
415 handler MAY set this to reflect the schema of the returned record.
417 New member 'display_term' in struct scan_entry. GFS now sets member entries
418 and allocates scan entries to be filled by user scan handler. In previous
419 version, entries member was allocated by the scan handler. That still works,
420 but the GFS will ignore member display_term - assuming it was NOT set by
421 the handler. The fact that the GFS now allocates the entries both allows
422 for new members and makes a scan handler easier to write.
424 Fix CQL lex buffer overflow.
426 SRW/SRU recordPacking. For SRW default recordPacking is string. For
427 SRU default recordPacking is string.
429 SRU protocol support for frontend server.
431 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
433 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
435 Added scan for the ZOOM shell (zoomsh).
439 * String Identifers for Schemas (Amendment 5).
440 http://lcweb.loc.gov/z3950/agency/amend/am5.html
441 Old definition for schema
442 Odr_oid *schema; /* OPT */
447 Z_InternationalString *uri;
448 #define Z_Schema_oid 1
449 #define Z_Schema_uri 2
452 * resultCount parameter to Sort Response (Amendment 1).
453 http://lcweb.loc.gov/z3950/agency/amend/am1.html
455 Support for SRW 1.0 over HTTP. This is an optional feature and
456 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
459 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
460 on the same port. SRW SearchRetrieveRequests are mapped
461 to bend_init,bend_search,bend_fetch,bend_close.
463 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
465 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
466 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
468 ZOOM connections are SRW based if schem http is used for hostname
469 in connect, e.g. z = ZOOM_connection_new("http://myserver");
470 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
472 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
473 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
474 distance=n, order=true/false, relation=le, prox unit=word. If
475 n is omitted, distance 1 is used.
477 Fixed problem with C compiler include path in wrong order.
479 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
480 on Solaris. Patch from Ko van der Sloot.
482 New MARC decode API. All new functions operate on a yaz_marc_t
483 handle. The most important new functions are: yaz_marc_create,
484 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
485 decode and destroy respectively. Decoder can produce formats
486 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
487 include/yaz/marcdisp.h.
489 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
490 to UTF-8, UCS-32, wchar_t or Latin-1.
492 * Prototypes for yaz_iconv_-functions moved to separate header
493 include/yaz/yaz-iconv.h.
495 Make a few private functions 'static' in unix.c. This prevents
496 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
498 For ZOOM connection, the options targetImplementation{Id,Name,Version}
499 are set when Init Response is received.
501 New function ZOOM_connection_error_x similar to ZOOM_connection_error
502 but returns diagnostic set as well.
504 New function yaz_strerror which is a portable wrapper for
505 strerror/strerror_r/GetLastMessage.
507 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
508 is returned for MARC. If type is "oai", then OAI MARC is returned.
510 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
515 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
517 Fix bad race conditions on SIGTERM and terminate gracefully in
520 Move retrieval (data1) module to Zebra since nobody seems to be
523 Add GRS-1 render for ZOOM using same format as yaz-client.
527 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
529 Fix broken ESpec handling in data1 module.
531 SGML reader parses comments and makes them part of the data1 tree.
533 Added several type casts so that YAZ compiles as C++ code.
535 ZOOM didn't handle PDU encoding failures properly.
537 Added more Bib-1 diagnostics (approved extensions).
539 GNU configure: better check for iconv.
541 More portable use of accept, getpeername. Check for socklen_t. Use
542 int/size_t if socklen_t is not defined.
546 PQF parser rejects bad queries - including those with extra
547 characters in them. PQF parser used to silently ignore that.
548 Cleaner API for PQF added, which allows you to get detailed
549 error information for bad queries (see yaz/pquery.h).
551 Fixed bug in ZOOM_record_get for type "database".
553 Implemented mini iconv library supporting conversions between
554 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
556 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
560 Fixed ZOOM C record cache so that preferredRecordSyntax and
561 elementSetName is used to check for already fetched records.
565 Added three members in bend_initrequest structure to facilitate
566 character set negotiation.
568 Fixed a bug in frontend server that could cause indefinite
569 loops under rare conditions.
571 Revised character set utilities (charneg.h) so that encoding
572 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
574 For PQF, directive @term <type> sets term type for Scan/Search.
575 Here <type> is general, string, numeric, null. The term type
576 is inherited - just like @attr.
578 New call odr_set_charset that sets character set conversion for
579 international-strings on a ODR stream. Prototype is:
580 int odr_set_charset(ODR o, const char *to, const char *from);
581 The InternationalString is still represented as C string in YAZ
582 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
583 won't). On the protocol level, you can use any encoding.
585 Support for UNIX sockets in ZOOM.
587 Solaris recv sometimes returns errno == ENOENT. It is treated as
588 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
590 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
591 both client and server. Code by Morten Bøgeskov.
595 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
596 that they can be used directly from Visual Basic. You must recompile
597 your windows APP if you're using ZOOM.
599 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
600 Commands "lang" and "charset" sets language and character set respectively.
601 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
602 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
604 Attributes from multiple CCL fields may be OR'ed rather than merged
605 using directive "@field or". Fields are still merged by default -
606 equivalent to "@field merge".
608 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
611 Fixed bug in zget for parameter ExtendedServicesResponse.
617 Added PQF feature: '@attr type=value' may be written as '@type=value'.
619 Client displays USR.1:SearchResult-1 (hits per term).
621 Additional Search Info for search in Generic Frontend Server.
623 Fixed CCL parsing of "field=s".
625 WIN32 installer - using the excellent NSIS software from nullsoft.
627 Fixed CCL parsing of "field = - <number>".
629 Added function yaz_marc_decode that decodes MARC for line mode
630 display or XML (similar to that used by JZKit).
632 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
633 Z39.50. But ISO/ILL was, however.
635 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
636 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
638 http://lcweb.loc.gov/z3950/agency/amend/am2.html
639 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
643 New YAZ client features: Command completion and new commands:
644 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
645 Code provided by Jacob Poulsen.
647 New call oid_trav, that visits all registered OIDs via callback.
649 Function ZOOM_record_get now returns const char pointer rather than
650 void pointer. It saves a lot of type casts.
652 For YAZ client, command "auth" now allows you to set authentication
653 in IdPass style. It is enabled when three tokens are given - order
654 is user, group and password.
656 Fix memory leaks in MARC record handling for ZOOM.
658 New option for YAZ client, -k <kilobytes> that sets
659 maximum record size. Similar to -k option for generic frontend
660 server and yaz-ztest.
662 More fixes for scan. Non-zero stepSize handled. OID's fixes.
664 Prefix query parser reports "fail" when bad attribute set is given.
666 Fix in MARC decoder. Proximity logging. Fix for attribute set
667 in scan handler for server. Patches by Shigeru Ishida.
669 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
672 Configure option --with-openssl=<dir> now works when a directory is
673 specified. Patch provided by Morten Bøgeskov.
675 New option for YAZ client, -u <auth>, that sets authentication.
677 ZOOM fix: error information was sometimes "missing", since error
678 was cleared/reset too when it shouldn't.
680 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
684 Scan for ZOOM API. New object ZOOM_scanset. New functions
685 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
686 ZOOM_scanset_destroy.
688 New ZOOM function, ZOOM_connection_last_event, that returns type
689 of last event (such as "receive data", "send data", "apdu received",
692 New ZOOM option, schema, that specifies schema for retrieval.
694 New CCL feature. Qualifiers can be aliases for one or more
695 other qualifiers (if more than one is given, OR is used).
697 ZOOM uses named result sets if target supports it.
699 Two new YAZ client commands: . (dot, which sources a script of YAZ
700 client commands), and ! (to execute shell command.). Implemented
703 Working on Debian packages.
707 YAZ client enables named result sets only if target supports it.
709 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
711 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
712 with key="host" to get same result.
714 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
715 Function Z3950_resultset_record(s) returns references to records
716 "owned" by resultset. To become owner use Z3950_record_clone.
718 Function z_ext_record handles Extended Services. Thanks to
723 CCL Parser fix: ignore token comma when dealing with and-lists.
725 Documentation updates for COMSTACK.
727 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
728 Changed prototype Z3950_records. For some functions, int parameters
729 were changed to size_t.
731 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
734 New MARC decode/display function, marc_display_exl, which properly rejects
735 non-ISO2709 records. YAZ client uses it.
739 Fix bug: local attribute set wasn't set correctly in PQF strings.
743 * Old Z39.50 codecs no longer supported.
745 Added ZOOM C binding. See http://zoom.z3950.org/
747 Renamed states for COMSTACKs to avoid confusion with events.
749 Implemented cs_look and proper cs_rcvconnect.
751 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
753 Configure detects POSIX threads on OpenBSD.
755 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
756 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
758 When error is returned from present handler, non-surrogate diagnostic
759 is returned in present response (and fetch handler is no longer called).
761 * Minor adjustments to pquery parser (PQF). Token characters may be
762 escaped by using backslash (C-style).
764 PQF parser allows string attribute values to be specified. For @attr,
765 non-numeric characters after the equal-sign are treated as strings
766 (e.g. @attr 9=title).
768 CCL trunction character may be defined (@truncation in file)
770 * function zget_ExtendedServicesRequest sets waitAction to
771 waitIfPossible (was wait).
773 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
776 CCL operator names may be set in field definition files (CCL_bibset).
777 See ccl/bib1 for an example.
779 Fixes in ASN.1 compiler for C++ compatibility.
781 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
782 and "op_or" to avoid conflict with C++.
784 Fixed problem with GNU readline detection on Redhat 7.0.
786 Added step-size for Scan backend handler.
788 Fixed bug that made the frontend server crash when no attribute
789 set was specified for scan.
791 Front-end server automatically switches to original working directory
792 when installed as an NT service. Previously -w had to be specified to
795 Added extended attributes for retrieval module (data1), so that data1
796 records carry d1_readXML/SGML attributes. d1_read also supports
797 null-data rules ( <tag/>)
799 On UNIX when POSIX threads are available, a separate library libyazthread
800 is created. Programmers should link with that library and the yaz library
801 when using threads. The reason for the split was that some applications
802 on Linux, such as Apache, doesn't work well when using shared objects that
805 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
806 (or any frontend server) in SSL mode by specifying ssl: followed by
807 address. Only tested on UNIX.
809 Added feature for CCL module. Virtual structure s=al or s=ol generates
810 and-list and or-list respectively instead of phrase search.
814 * Added prefix "yaz_" for the functions log_init.., log_file.. and
815 log_mask_str. This was done to avoid name conflicts with other libraries
816 (such as other PHP extensions).
818 Added raw OID member for preferred record syntax (request_format_raw)
819 and returned record syntax (output_format_raw) for backend fetch method.
821 Config file yaz-config now accepts options so that it returns specific
822 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
824 Shared library support for UNIX using GNU libtool.
826 * Modified backend interface. Request/Response struct's replaced by
827 one read/write C struct. For example bend_fetchrequest and
828 bend_fetchresult have been replaced by single bend_fetch_rr struct.
829 Every handler - even search has to be registered in bend_init
830 handler. This means that the YAZ library no longer refers to
831 external functions and it makes it possible to make the whole
832 thing a single DLL/SO.
834 Added Segment handler for backend server.
836 Added Zmbol/Zebra administrative functions to YAZ client.
838 Threaded frontend server on UNIX (when POSIX Threads are available).
839 Starting the server with option -T enables multi-threading.
843 Added configure option --enable-comp/disable-comp to control use
844 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
845 located in sub directory asn.
847 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
848 in ${exec_prefix}/bin along with the other programs yaz-client and
851 GNU automake used to maintain makefiles.
855 Changed retrieval module so that we can load records with no abstract
856 syntax defined. Tagpaths in these records are fully composed of string
859 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
863 On UNIX, the generated makefile now supports a proper 'make install'.
864 The prefix can be set via GNU configure to set the install location
865 (default is /usr/local).
867 * YAZ programs client and ztest were renamed to yaz-client and
868 yaz-ztest to avoid conflicts when users install YAZ in "standard"
869 locations, such as /usr/bin,/usr/local/bin,etc.
871 * YAZ Header files were moved from include to include/yaz. YAZ Header
872 files are referred to as include <yaz/log.h> rather than <log.h>.
873 The YAZ include path (-I ..) is therefore the same as before. Programmers
874 should update their #include statements or use -Ipath/include/yaz
875 instead. The main motivation for doing this change is that YAZ header files
876 can be installed in "standard" locations /usr/include,/usr/local/include
877 without introducing conflicts, since ALL YAZ header files are stored
878 in subdirectory yaz (under /usr/include for example).
880 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
881 rather than project/workspace files. We switched because project files
882 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
885 Changed name of logging function, logf, to yaz_log, to prevent name
886 clash with some math-log functions. The YAZ header log.h defines logf
887 to yaz_log (#define) so there should be no incompatibilities by this
890 Added bend_start/bend_stop handlers for server. These handler are
891 called on start/stop of server. For windows they are called whenever
892 a service is started/stopped.
894 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
895 a fairly small ASN.1 compiler written in Tcl. The compiler is located
896 in util/yc.tcl. The auto-generated C code structures are, in a few
897 cases, incompatible with the old decoders. There are differences in the
898 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
899 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
900 The preprocessor variable ASN_COMPILED is defined when the compiled
901 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
902 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
903 wish to use the old encoders/decoders you can specify --disable-yc
906 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
907 version so that it supports both new - and old version of DB Update
909 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
910 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
911 change. The name parameter can be set to 0 in which no name is specified
912 for the construction. The macros odr_implicit and odr_explicit sets name
913 parameter to zero for the construction involved. New macros
914 odr_implicit_tag and odr_explicit_tag are similar to the others,
915 except that a name parameter is added. For programmers' that don't use
916 ODR they probably only need to change the call to z_APDU and z_External.
918 Added access control facility by interfacing the TCP wrapper library.
919 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
920 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
921 name of the daemon and enables the access control as specified in
922 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
924 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
925 den Dool <H.M.vdnDool@kub.nl>.
927 Added reference ID parameter to most functions in server API - refer
928 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
930 Changed name of ccl library to libccl.a (was ccl.a).
932 Fixed bug in decoder for Explain (Category TargetInfo).
934 Added support for GNU readline in client. Thanks to Jacob Poulsen
935 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
937 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
938 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
939 IMPLEMENTATION! This change was made to the development version before
940 the ZIG decided to retract the amendment. If any users MUST be
941 compatible with the original Update definition, PLEASE CONTACT US, and
942 we will include a separate definition corresponding to the old Update
943 ES. Note that because of the change to the ASN.1 of the
944 TaskPackageRecordStructure we cannot define a single structure that
945 will support both versions.
947 * Added const modifier to buffer parameter for some ODR/BER encoding
948 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
949 completeWAIS, odr_dumpBER.
951 Fixed bug in client.c which caused a crash when a scanResponse didn't
952 contain positionOfTerm.
954 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
955 * will cause an error in a client if a non-YAZ target sends both a
956 * list of Scan entries and non-surrogate diagnostics.
958 Retrieval module enhancements. Tag sets may be typed in the reference
959 to it. From the .abs-file the "tagset" directive takes a third optional
960 integer type for the tag set referenced. From a .tag-file the "include"
961 directive takes a third optional type as well. The old "type" directive
962 in the tag set itself is still recognized but acts as the default type
965 Backend interface change. Individual Scan terms returned from bend_scan
966 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
967 in include/backend.h.
969 Retrieval module enhancements. Multiple tag sets and attribute sets may
970 be specified in abstract syntax specs. Revised the error/warning for
971 logging messages reported by the retrieval module when reading the
974 Object Identifier system (oid_..) changed. The API is backwards
975 compatible but the oid-routines now allocates new OID's when needed.
976 Raw OID's may be specified in oid_getvalbyname.
978 YAZ now uses GNU configure to generate Makefile(s).
980 * Minor changes in some of the member names of DeleteResultSetRequest and
981 DeleteResultSetResponse. See include/proto.h.
983 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
984 and added member 'languages' in TargetInfo (which was missing).
986 Changed the way attribute sets are handled in the retrieval
987 module. These are now cached, just like the abstract syntaxes
990 Changed YAZ so that it links with compiled ASN.1.
992 Added Explain-schema definitions and mapping routines. The following
993 Explain categories have been implemented: AttributeDetails,
994 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
996 Fixed minor bug in Windows version of Server Library.
998 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
1000 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
1002 Added EXTERNAL: UNIverse Resource Report (non-standard).
1004 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
1005 ENUMERATED and SET OF.
1007 * Added 'const' to some of the char pointer arguments for the
1008 functions, data1_read_node, data1_getelementbytagname,
1009 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
1012 Fixed bug in data1_insert_taggeddata - the last_child member of
1013 parent wasn't initialised.
1015 * Changed data1_read_record and data1_read_node so that the supplied
1016 "SGML"-buffer is read-only. In particular the resulting data1 - tree
1017 doesn't refer to any parts of the "SGML"-buffer.
1019 Fixed bug in server library (Windows version of statserv_remove).
1021 * Changed code so that it compiles as C++. The type definition
1022 of Odr_fun which is a member of Odr_arm was changed. The result is,
1023 that an explicit typecast is needed for the fun pointer when
1024 using Odr_arm - as in:
1025 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
1027 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
1029 Implemented the new structured date and time definition as approved
1030 by the ZIG. Added schemaId element to the specificTag in Espec-1
1031 (also approved at the last ZIG). Thanks to RVDM.
1033 Added some Object identifiers (RVDM).
1035 Changed the Update Extended Service (RVDM).
1037 Added command "refid" to client which specifies referenceId for
1038 the following requests.
1040 Implemented extended service handling for server. See ztest.c
1041 for an example as well as backend.h. New handlers are registerd
1042 in the Init handler.
1044 * Changed interface for sort in server.
1046 Added new members to statserv_options_block. It allows a server
1047 to read options from another source than just the command line. Thanks
1048 to Charles Woodfield.
1050 * Changed definition of Z_Triple in file prt-grs.h - member boolean
1051 renamed to zboolean. Some C++ compilers complained about the name.
1053 Minor changes to gils.abs. Added index 's' (sort) on title
1054 and date/time-last-modified.
1056 --- 1.4pl2 1998/1/30
1058 Fixed bug in server library regarding inetd mode (-i). This bug
1059 was introduced by release 1.4.
1061 --- 1.4pl1 1998/1/29
1063 Added sort facility in client and backend server interface.
1065 Fixed problem with dependencies in Makefile(s).
1067 Fixed bugs for encoders/decoders of extended services and
1070 Implemented sub-tree feature for schemas. Sub-trees are
1071 referenced in *.abs-files. See explain.abs for an example
1072 of the use of this feature.
1074 Modified bib1.att; local attributes for ANY didn't include
1075 ANY itself (only affects use of the retrieval module).
1077 Fixed bug in plain SGML reader in function data1_read_node:
1078 tags with prefix "var" was incorrectly interpreted as variants.
1080 Added feature "sub-schemas" to enable references to - and definitions
1081 of - group of elements.
1083 * Removed member parent from type data1_element (in data1.h).
1085 Implemented function odr_nullval() that returns the value of
1088 * Removed member num_children from data1_node (in data1.h).
1090 Made NT service interface part of the server library. The
1091 function statserv_main uses the NT service when required and
1092 calls the statserv_start / statserv_close routines.
1094 Routine zget_SearchRequest and zget_PresentRequest fills
1095 resultSetName/Id member with "default" instead of "Default".
1097 Fixed memory leak in server. Request queue member wasn't freed.
1099 Fixed nmem_exit so that memory is freed.
1103 Revised the CCL parser utility to be thread safe.
1105 Added function, oid_ent_to_oid, to replace the function
1106 oid_getoidbyent, which is not thread safe.
1108 * Added nmem_init and nmem_exit to initialize and release
1109 NMEM resources. Function nmem_init should be called once in the
1110 initial thread before NMEM/ODR is used. statserv.c and client.c
1111 have been changed accordingly. The change was necessary to make
1112 NMEM thread safe. The NMEM memory pool is shared amongst threads
1113 in a process. Unix-based applications will still work fine without
1116 Added NT Services interface for the the Z39.50 (statserv) Server.
1117 Refer to the ztest.c source on the usage.
1119 Windows 95/NT port using MSVC5.0. Project files are included in the
1122 * Defined new 'global' handle for the retrieval (data1) system. The
1123 new handled, data1_handle, describes the state of the data1 system.
1124 This handle is passed as first argument to virtually all
1125 data1 related routines. The functions data1_create and data1_destroy
1126 creates and destroys a data1 handle respectively.
1128 Added ODR encode stream member to all backend request structures
1129 init, search, scan etc. This stream should be used to allocate all
1130 memory used for the response when thread safe operation is needed.
1132 Changed the comstack utility, cs_addstr, to be thread safe. The
1133 returned hostname string returned by the function is now part the
1136 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
1137 function. The cs_straddr takes a COMSTACK handle as argument, so this
1138 function must be used after cs_create and before bind/connect.
1139 This function is thread safe.
1141 Moved test server to 'ztest' directory - generic server code still
1142 in 'server' directory.
1144 Made prefix query (pquery.c) utility thread safe.
1146 Added new function modifier YAZ_EXPORT to 'export' public DLL
1147 functions when using windows (see include/yconfig.h).
1149 Added definitions to the OID database (util/oid.c) (RVDM).
1151 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
1153 Added call to ccl_rpn_delete in client program.
1155 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
1156 release of RPN structure.
1158 Added support for C++, headers uses extern "C" for public definitions.
1159 With input from RVDM.
1161 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
1162 Thanks to Ronald van der Meer (RVDM).
1164 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
1166 Added support for private extensions to the OID database
1167 (oid_setprivateoids()). Thanks to RVDM.
1169 Added optional, physical ANY (key replication)
1171 Fixed null-reference problem in GRS-1 output filter.
1173 Proximity operator added to Prefix Query Format (PQF).
1175 In test client command "base" accepts multiple databases.
1177 Fixed bug in cs_close stack that caused trouble with WINSOCK.
1181 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1183 Smallish bug-fixes in the new encoders/decoders (explain).
1185 Bug fixed in DeleteRequest.
1187 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
1189 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1191 Added SOIF syntax (using private OID for now) to retrieval module and client.
1193 Added Update extended service.
1195 Added SearchResult-1 additional info structure.
1197 Added optional CCL (ISO8777) interpreter as separate module. Available
1200 --- 1.2 1996/6/10 (1st anniversary release)
1202 Added Summary record syntax. Lightly tested.
1204 Added OPAC record syntax. Untested.
1206 Added ResourceReport service encoders/decoders. Untested.
1208 Fixed bug in z_Unit - wrong tagging on unitSystem.
1210 Fixed bug in the DiagRecs decoder.
1212 Added options for max PDU size and session timeout to frontend-server.
1214 Added documentation of query-language parsers and other supporting utilities.
1216 [frontend-server] Added Attribute set to the bend_scanrequest API.
1218 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
1219 surrogate diagnostics were generated.
1221 [retrieval] Allow multiple local values for attribute.
1223 [retrieval] Allow multiple attributes per element in .abs files. index type.
1225 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
1227 --- 1.1pl2 1996/4/10
1229 Minor changes, mostly specific to Zebra's requirements (retrieval)
1233 Repaired bug in frontend server when running multiple listening
1234 endpoints in dynamic mode.
1236 z_External() now won't break if a known, ASN.1 value comes encapsulated
1237 in an octet-string. The value will pass through unmodified in an Odr_oct.
1239 Added a bit of code to the demo client to decode & display
1240 ASN.1-structured records represented in the octet-aligned branch of
1241 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
1243 Added z_ext_getentbyref() to the ASN module. Doc updated.
1245 * Completed the SCAN definition in the ASN module. This may break SCAN
1246 code based on older YAZ-versions at compile-time. The fix is easy -
1249 * Added 'displayTerm' and OtherInformation to the TermInfo structure
1250 under the SCAN definition. Remember to initialize this, server-people.
1252 Comstack should now support the WAIS protocol in TCP/IP mode. Note
1253 that this does not extend to ODR and ASN.
1255 Comstack allows insertion of established socket (primarily for
1256 inetd-operation of servers). Doc updated.
1258 Front-end server can now start from the inetd in TCP mode. Doc
1261 --- 1.0pl4 1996/1/24
1265 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
1266 the rank and record number.
1268 Adjustments to the frontend server.
1270 Fixed diagnostic BER dumper. It ignored the file argument.
1274 Various changes to retrieval module.
1276 Changed the union discriminators of the protocol files from enums to
1277 ints paired with #defines.
1279 *Changed oident.class to oident.oclass to avoid a reserved word in C++
1282 *Changed operator in the RPN structure to 'roperator', again to avoid a
1285 Fixed problems in Explain decoders/encoders.
1287 --- 1.0pl2 1995/12/6
1289 Memory bug in log module fixed.
1291 --- 1.0pl1 1995/12/5
1293 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1295 Bug in Explain DatabaseInfo module fixed.
1297 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1301 The shift to v1.0 signals that we now consider the *core* functionality
1302 of YAZ reasonably stable (the core being more or less equivalent to
1303 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1304 tested (Explain not at all - though that will happen soonish).
1306 Minor changes to code to support Windows port.
1308 Various minor changes after we're getting to use GRS-1 & co. more.
1310 Added Espec-1 format.
1312 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1313 of the protocol and it cannot be selected when encoding (maps into 'string'
1314 when decoding). Needed to talk to some servers.
1316 Demo client can request simple element set names.
1318 Added Diagnostic Format encoders/decoders.
1320 Added simple Close handling to frontend server (no hooks for resource
1321 reporting yet), and demonstration client.
1323 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1325 --- 1.0b3 1995/08/24
1327 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1328 handled incorrectly when records were requested in the searchResponse. This
1329 will only affect you if you use the frontend-server.
1331 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1332 Test-client will ask for and print GRS1. Ztest will return dummy records
1335 Added Explain encoders/decoders to the service-level API. Untested.
1337 Added Extended Services: Item Order encoders and decoders to the Service-
1338 level API. Untested. We could use a recent copy of the pertinent bits
1339 of the ILL protocol to add those bits.
1341 Added diagnostic format 1 encoders/decoders to the service-level API.
1344 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1345 odr_cons.c, which causes a more correct output.
1347 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1348 was always set to 0 when no records were requested in the searchRequest.
1350 * Added better external-handling. This shouldn't harm old code that
1351 *encodes* externals. It can break code that looks for a
1352 'single-ASN1-type' representation, since those types that are known
1353 are now decoded immediately. Look at the SUTRS sample code in
1354 seshigh.c and client.c. Documentation updated.
1356 Handling of structured records in bend_fetchresponse. Length -1 marks
1357 structured record, type is deduced from format field.
1359 --- 1.0b2 1995/06/27
1360 Fairly quick maintenance release to add SUTRS support.
1362 Fixed handling of SUTRS records in the demonstration client.
1364 * Added format field to the bend_fetchrequest and bend_fetchresponce
1365 structures of the backend API (frontend server). When the record is
1366 returned, the value of the format field is mapped to an OID. The
1367 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1368 of the record. The special value VAL_NONE in the bend_request means
1369 that no specific format was requested by the client. Documentation
1370 updated accordingly. Test server (ztest) will return a fixed dummy
1371 SUTRS record if your client requests SUTRS.
1373 Documentation updated accordingly.
1375 You can now set external libraries and RANLIB support in the top-level
1379 First public release.