1 Possible compatibility problems with earlier versions marked with '*'.
5 Fix buffer overrun in CQL parser when dealing with proximity (%).
7 Fixes for MARC-8 in yaz_iconv character set utilies. The MARC-8
8 to UTF-8/UCS conversion is now only based on codetables.xml.
10 yaz_marc_decode_buf sets leader pos 9 to "a" for MARCXML output.
14 Add support for more "commit changes" in ZOOM (uses Extended Services).
16 For yaz-client, command set_marcdump <file> / -m <file> dumps SUTRS/XML/..
19 Yet another small fix for configure of SSL.
23 Fix SSL libs for configure when --with-openssl=DIR is given.
27 Add autoconf m4 macro YAZ_DOC for YAZ documentation setup (docbook).
29 SSL comstack now uses yaz.pem certificate file on server side
30 by default. Certificate filename can be configured by calling
31 comstack function cs_set_ssl_certificate_file before cs_bind is used.
33 Fix bug regarding multiple calls to ZOOM_connection_connect.
35 Implement cs_set_ssl_ctx which sets SSL_CTX for SSL comstack.
37 Do not create SSL_CTX in cs_create (ssl_type). Create in tcpip_bind,
38 tcpip_rcvconnect instead. This allows user to set custom SSL_CTX.
40 ZOOM now allows inspection of X509 peer certificate for verification.
41 The X509 buffer is retrived by reading ZOOM option "sslPeerCert".
43 Removed libyazssl.la. When SSL is enabled, libyaz.la has SSL support and
44 all programs have too (yaz-ztest, yaz-client, zoom..). May not be
45 as "modular" but it simplifies things.
47 Added cs_get_peer_certificate to that returns peer X509 PEM.
49 Added cs_get_ssl that returns SSL handle (SSL *) for SSL comstack; returns
50 NULL if SSL is unavailable.
52 Documentation about MARC decoding tools.
54 Fix --disable-tcpd to really disable tcpd. Patch by Robin H. Johnson.
58 Rename CHANGELOG to NEWS to follow GNU style packing.
60 Fix bug with missing initialization of member in init_diagnostics.
61 This bug affects threaded version of GFS server.
65 Use wrbuf_xmlputs_n instead of wrbuf_write_cdata to avoid clash with
68 Ensure zlib.dll is packed with Windows install.
72 Fix encoding of xsd:string to use text instead of CDATA.
74 Fix endless loop in CQL parser with unbalanced ".
76 Use a more compact way to store MARC-8 conversion tables.
78 --- 2.0.16 2004/03/16 Debian only
80 Oleg Kolobov Fixed a bug in yaz_iconv regarding conversion to
83 Update CQL parser to use new CQL 1.1 modifiers for booleans and
90 Another fix for decoding of XML packed records.
94 Fixes for Chunked encoding. White space not ignored after length spec.
96 Update NS and use default NS for SRW diagnostic elements.
100 Implement ZOOM_resultset_cache_reset which resets record cache.
102 Implement ZOOM_resultset_sort which sorts a result set.
104 Implement chunked HTTP transfer.
106 For SSL, use -lssl -lcrypto on systems that don't have pkg-config.
108 --- 2.0.12 2004/02/16
110 Added member 'schema' to bend_explain_rr structure so that backend
111 can specify explain record identifier. Defaults to Zeerex 2.0.
113 Fix encoding of OID's of form 1.0.X. Bug introduced in 2.0.11.
115 --- 2.0.11 2004/02/16
117 * SRW/SRU 1.1 updates: updated diagnostic in srw.h to use uri instead
120 Added init command for yaz-client which sends "extra" init request.
122 Fixed two bugs in OID codec - ber_oidc. Throw error when encoding/decoding
123 bad truncated OID. Fix decoding of OID X.Y... when X=2 and Y>39.
125 Fixed a bug in ASN.1 compiler that caused Type-1 Operator codec to fail.
127 Make ZOOM error code for "invalid query".
129 Fixed compilation for SSL which wasn't properly enabled for all platforms.
131 --- 2.0.10 2004/02/05
133 For yaz.m4, allow second argument for YAZ_INIT to hold minimal version of
136 * SRW/SRU 1.1 updates. Diagnostic code now a URI.
138 Added option -p <file> to make Generic Frontend Server to write PID file.
140 Added option -D to put Generic Frontend Server in background on its own.
142 Make ZOOM C recognize option "password". If unset, "pass" is used
143 (for backwards compatibility).
145 Fixed a bug in Generic Frontend Server that could make it crash if a
146 client sets characterSetNegotation bit, but didn't pass negotiation stuff
149 New YAZ client command, zversion, that sets Z39.50 version (1,2,3..).
150 Must be issued before open, in order to be in effect.
152 --- 2.0.9-6 2004/01/12 Debian/Windows
154 Make the SRU server more picky WRT unknown params, etc.
156 Bug fix: ZOOM scan response didn't return displayTerm - when present.
158 New YAZ client command, options, that sets Z39.50 options.
160 New utility functions yaz_init_opt_{encode,decode} to encode/decode Z39.50
161 options from a string of tokens (one token for each option bit).
163 Update SRW diagnostic code messages.
165 --- 2.0.9-5 2004/01/07 Debian/Windows
167 Handle user defined stylesheet for SRW/SRU.
169 --- 2.0.9-4 2004/01/06 Debian/Windows
171 Fix bug in decoding of Content-Length.
173 --- 2.0.9-3 2004/01/06 Debian/Windows
175 Fix a bug with decoding of XML packed records.
177 --- 2.0.9-2 2004/01/05 Debian only
179 Allow empty ODR (NMEM=0) for odr_oiddup and odr_getoidbystr.
181 Fix bug in SRW/SRU diagnostics decoding.
185 Fixed bug in Generic Frontend Server which could drop records exceeding
186 preferred message size. Reported and fixed by Irina Dijour.
188 Fixed calculation of package size for structured records in Generic
189 Frontend Server. Reported and fixed by Irina Dijour.
191 Fixed namespace for SRW/SRU diagnostics.
193 Fixed SEGV in yaz-client that occured for HTTP connection errors.
197 * SRW/SRU 1.1. Since the Namespace has changed for SRW/SRU, it means that
198 this version is incompatible with version 1.0 and older YAZ SRW/SRU
201 CQL changes to reflect recent changes to the specification:
202 * Documentation talks about context sets instead of index sets.
203 * Documentation talks about indexes instead of qualifiers.
204 * The CQL-to-PQF transformer's configuration file now uses
205 "index.set.name = <attributes>" instead of the old form
206 "qualifier.set.name = <attributes>". (Both forms are still
207 understood but the latter is deprecated.)
208 * CQL terms with no explicit index specified are now interpreted as
209 cql.serverChoice instead of srw.serverChoice (which of course
210 behaves exactly the same.)
214 MARC conversion can now generate ISO2709 output in another
215 character set. yaz-marcdump uses this facility if you invoke it
218 Added missing C decl macros for include/yaz/{soap.h,srw.h,cql.h}, so that
219 functions from there can be used from C++.
223 Frontend server now transfers memory from decoded packages to stream
226 NMEM now clears freed blocks with 'Y' (hex 59) to force bad memory
227 references to show up.
229 ZOOM-C now supports standard ZOOM option names as described in v1.4 of
230 the ZOOM Abstract API. The older names for the same options are still
231 also supported for the benefit of old applications.
233 ZOOM-C supports "implementationId" and "implementationVersion" options
234 to go along with "implementationName". These allow the user code to
235 specify identification strings to be sent to servers.
236 Add OID for the new ExtLite attribute set.
238 Add OIDs for NACSIS-CATP, FINMARC2000 and MARC21-fin record-syntaxes,
239 as requested/supplid by Ere Maijala <ere@atp.fi>
241 For generic frontend server, reverse the order of
242 "toolkit-supplied / application-supplied" strings sent as implementationId,
243 Name and Version. Also, remove the spaces around the slash. This brings
244 the GFS in line with the behaviour of ZOOM-C on the client side.
246 Add function ZOOM_scanset_display_term.
248 yaz-client shows scan displayTerm if present.
250 Utility yaz-iconv is now installed by default along with the man page
253 Extend configure check for OpenSSL to use pkg-config where available (such
256 Incorporate patch by Morten Bogeskov which allows a Unix file socket
257 server to specify uid/gid/mask for socket using the format
258 unix:[user=uid,][group=gid,][umask=mask,]file=path
259 If file= is omitted the existing format is assumed, e.g.
261 in which case the mask is 0666 (rw for everybody).
263 Major restructure of YAZ source. All source in libyaz is in src directory.
264 Programs in client (yaz-client), ztest (yaz-ztest), zoom (zoom programs),
265 util (utility programs such as ASN.1 compiler, yaz-marcdump).
267 Added man page for utility yaz-marcdump (used to be called marcdump).
268 yaz-marcdump is installed by 'make install'.
270 Fixed a memory leak in Generic Frontend Server that occurred when decoding
271 of incoming package failed.
273 Fixed a potential DOS attack vulnerability in COMSTACK/ODR.
275 Change prototype of odr_perror: add const to message string.
277 New function yaz_log_reopen which reopens log file (for log rotate, etc.)
279 * Blocking parameter for COMSTACK cs_create is now a bit mask rather
280 than a blocking flag. Bit 0 is set for blocking, reset for non-blocking.
281 Bit 1 is set if cs_addrstr should avoid DNS lookup; reset for full
282 DNS lookup. There should not be any compatibility problems with this
283 assuming that blocking=1 or 0 is used.
285 Fix bad reference in UNIX comstack in function cs_addrstr.
287 Fix for compilation on AIX.
289 The generic front-end server (server/seshigh.c) now supports returning
290 Init diagnostics to the client in User-information-field, in
291 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
296 Allow any CQL relation (not just all,any,exact,scr).
298 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
299 that features the same UI.
301 Implemented command update0 in YAZ client which is equivalent to
302 update but uses old of Ext Update ASN.1.
304 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
305 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
306 Previously no OID was used for this info.
308 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
309 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
310 returns 'malformed search term' otherwise.
312 SortResponse member resultCount now set to NULL in sort handler of
315 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
318 Add three new utility functions for translating OIDs between various
319 formats -- symbolic name such as "Usmarc", minus-1-terminated int
320 arrays and dotted strings such as "1.2.840.10003.9.5.1":
321 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
322 char *oid_to_dotstring(const int *oid, char *oidbuf);
323 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
325 Reverted modifications for ES Update definition for z_IU0Update
326 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
327 is back to YAZ 2.0.2.
329 String value attributes for CCL parser.
331 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
332 which their FirstSearch server returns in Init responses, sometimes
333 carrying useful diagnostic information when Init fails. This has the
334 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
335 "z39.50/oclcui.asn", where its definition is somewhat different from
336 what OCLC document on their web-site, as required to interoperate with
339 Support for anonymous authentication in yaz-client. Use the command
342 * Fix the OID of the Index Data-local "admin" Extended Service from
343 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
344 the 1000, which indicates a locally-defined OID, was a mistake.
348 Fix CCL directive @case handling so that it affects string match for
349 both CCL keywords and qualifiers.
351 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
352 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
353 Decoder has been updated with ASN.1 changes as listed in
354 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
355 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
356 z_IUUpdate, remains unchanged.
358 ZOOM_record_get may now return a record in a specific character set.
359 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
360 "from" is the character set of record as returned by target. "to" is
361 the character set to be returned. If omitted, "to" is UTF-8.
363 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
365 New ODR utility, odr_getelement, which returns name of element for
366 which encoding/decoding failed.
368 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
369 in cases where a required element was omitted.
371 Bug fix: some MARC8 sequences were not converted.
373 New ZOOM option "step" which specifies number of records to be
374 retrieved in one chunk. Used in conjunction with "start" and "count".
376 SRW support for yaz-client. Use scheme http: to use it, e.g.
379 yaz-client no longer does (un)intelligent character set conversions
380 by default. Can be enabled with charset and marc_charset commands.
382 xmalloc trace fix for 64-bit systems such as DEC alpha.
384 Solaris 2.6 compile fix.
386 New function, cql_strerror() translates SRW error codes, as returned
387 by cql_transform_error(), into human-readable English strings. Used
388 in yaz-client diagnostics when appropriate.
390 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
391 converts it into a type-1 query which is sent to the server. This
392 makes CQL available for use with all Z-servers, as opposed to the tiny
393 minority that can handle CQL queries themselves.
397 New Debian package layout similar to the Redhat Package layout.
399 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
400 and search result respectively.
404 Redhat package is now several packages: libyaz (runtime libraries),
405 libyaz-devel (development and documentation, and yaz (utility programs).
406 Package spec file by Morten Bøgeskov.
408 New member 'schema' in struct bend_fetch_rr which the name of requested
409 schema (SRW/SRU) for record (or NULL if none was given). The fetch
410 handler MAY set this to reflect the schema of the returned record.
412 New member 'display_term' in struct scan_entry. GFS now sets member entries
413 and allocates scan entries to be filled by user scan handler. In previous
414 version, entries member was allocated by the scan handler. That still works,
415 but the GFS will ignore member display_term - assuming it was NOT set by
416 the handler. The fact that the GFS now allocates the entries both allows
417 for new members and makes a scan handler easier to write.
419 Fix CQL lex buffer overflow.
421 SRW/SRU recordPacking. For SRW default recordPacking is string. For
422 SRU default recordPacking is string.
424 SRU protocol support for frontend server.
426 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
428 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
430 Added scan for the ZOOM shell (zoomsh).
434 * String Identifers for Schemas (Amendment 5).
435 http://lcweb.loc.gov/z3950/agency/amend/am5.html
436 Old definition for schema
437 Odr_oid *schema; /* OPT */
442 Z_InternationalString *uri;
443 #define Z_Schema_oid 1
444 #define Z_Schema_uri 2
447 * resultCount parameter to Sort Response (Amendment 1).
448 http://lcweb.loc.gov/z3950/agency/amend/am1.html
450 Support for SRW 1.0 over HTTP. This is an optional feature and
451 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
454 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
455 on the same port. SRW SearchRetrieveRequests are mapped
456 to bend_init,bend_search,bend_fetch,bend_close.
458 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
460 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
461 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
463 ZOOM connections are SRW based if schem http is used for hostname
464 in connect, e.g. z = ZOOM_connection_new("http://myserver");
465 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
467 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
468 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
469 distance=n, order=true/false, relation=le, prox unit=word. If
470 n is omitted, distance 1 is used.
472 Fixed problem with C compiler include path in wrong order.
474 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
475 on Solaris. Patch from Ko van der Sloot.
477 New MARC decode API. All new functions operate on a yaz_marc_t
478 handle. The most important new functions are: yaz_marc_create,
479 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
480 decode and destroy respectively. Decoder can produce formats
481 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
482 include/yaz/marcdisp.h.
484 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
485 to UTF-8, UCS-32, wchar_t or Latin-1.
487 * Prototypes for yaz_iconv_-functions moved to separate header
488 include/yaz/yaz-iconv.h.
490 Make a few private functions 'static' in unix.c. This prevents
491 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
493 For ZOOM connection, the options targetImplementation{Id,Name,Version}
494 are set when Init Response is received.
496 New function ZOOM_connection_error_x similar to ZOOM_connection_error
497 but returns diagnostic set as well.
499 New function yaz_strerror which is a portable wrapper for
500 strerror/strerror_r/GetLastMessage.
502 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
503 is returned for MARC. If type is "oai", then OAI MARC is returned.
505 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
510 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
512 Fix bad race conditions on SIGTERM and terminate gracefully in
515 Move retrieval (data1) module to Zebra since nobody seems to be
518 Add GRS-1 render for ZOOM using same format as yaz-client.
522 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
524 Fix broken ESpec handling in data1 module.
526 SGML reader parses comments and makes them part of the data1 tree.
528 Added several type casts so that YAZ compiles as C++ code.
530 ZOOM didn't handle PDU encoding failures properly.
532 Added more Bib-1 diagnostics (approved extensions).
534 GNU configure: better check for iconv.
536 More portable use of accept, getpeername. Check for socklen_t. Use
537 int/size_t if socklen_t is not defined.
541 PQF parser rejects bad queries - including those with extra
542 characters in them. PQF parser used to silently ignore that.
543 Cleaner API for PQF added, which allows you to get detailed
544 error information for bad queries (see yaz/pquery.h).
546 Fixed bug in ZOOM_record_get for type "database".
548 Implemented mini iconv library supporting conversions between
549 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
551 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
555 Fixed ZOOM C record cache so that preferredRecordSyntax and
556 elementSetName is used to check for already fetched records.
560 Added three members in bend_initrequest structure to facilitate
561 character set negotiation.
563 Fixed a bug in frontend server that could cause indefinite
564 loops under rare conditions.
566 Revised character set utilities (charneg.h) so that encoding
567 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
569 For PQF, directive @term <type> sets term type for Scan/Search.
570 Here <type> is general, string, numeric, null. The term type
571 is inherited - just like @attr.
573 New call odr_set_charset that sets character set conversion for
574 international-strings on a ODR stream. Prototype is:
575 int odr_set_charset(ODR o, const char *to, const char *from);
576 The InternationalString is still represented as C string in YAZ
577 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
578 won't). On the protocol level, you can use any encoding.
580 Support for UNIX sockets in ZOOM.
582 Solaris recv sometimes returns errno == ENOENT. It is treated as
583 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
585 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
586 both client and server. Code by Morten Bøgeskov.
590 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
591 that they can be used directly from Visual Basic. You must recompile
592 your windows APP if you're using ZOOM.
594 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
595 Commands "lang" and "charset" sets language and character set respectively.
596 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
597 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
599 Attributes from multiple CCL fields may be OR'ed rather than merged
600 using directive "@field or". Fields are still merged by default -
601 equivalent to "@field merge".
603 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
606 Fixed bug in zget for parameter ExtendedServicesResponse.
612 Added PQF feature: '@attr type=value' may be written as '@type=value'.
614 Client displays USR.1:SearchResult-1 (hits per term).
616 Additional Search Info for search in Generic Frontend Server.
618 Fixed CCL parsing of "field=s".
620 WIN32 installer - using the excellent NSIS software from nullsoft.
622 Fixed CCL parsing of "field = - <number>".
624 Added function yaz_marc_decode that decodes MARC for line mode
625 display or XML (similar to that used by JZKit).
627 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
628 Z39.50. But ISO/ILL was, however.
630 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
631 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
633 http://lcweb.loc.gov/z3950/agency/amend/am2.html
634 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
638 New YAZ client features: Command completion and new commands:
639 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
640 Code provided by Jacob Poulsen.
642 New call oid_trav, that visits all registered OIDs via callback.
644 Function ZOOM_record_get now returns const char pointer rather than
645 void pointer. It saves a lot of type casts.
647 For YAZ client, command "auth" now allows you to set authentication
648 in IdPass style. It is enabled when three tokens are given - order
649 is user, group and password.
651 Fix memory leaks in MARC record handling for ZOOM.
653 New option for YAZ client, -k <kilobytes> that sets
654 maximum record size. Similar to -k option for generic frontend
655 server and yaz-ztest.
657 More fixes for scan. Non-zero stepSize handled. OID's fixes.
659 Prefix query parser reports "fail" when bad attribute set is given.
661 Fix in MARC decoder. Proximity logging. Fix for attribute set
662 in scan handler for server. Patches by Shigeru Ishida.
664 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
667 Configure option --with-openssl=<dir> now works when a directory is
668 specified. Patch provided by Morten Bøgeskov.
670 New option for YAZ client, -u <auth>, that sets authentication.
672 ZOOM fix: error information was sometimes "missing", since error
673 was cleared/reset too when it shouldn't.
675 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
679 Scan for ZOOM API. New object ZOOM_scanset. New functions
680 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
681 ZOOM_scanset_destroy.
683 New ZOOM function, ZOOM_connection_last_event, that returns type
684 of last event (such as "receive data", "send data", "apdu received",
687 New ZOOM option, schema, that specifies schema for retrieval.
689 New CCL feature. Qualifiers can be aliases for one or more
690 other qualifiers (if more than one is given, OR is used).
692 ZOOM uses named result sets if target supports it.
694 Two new YAZ client commands: . (dot, which sources a script of YAZ
695 client commands), and ! (to execute shell command.). Implemented
698 Working on Debian packages.
702 YAZ client enables named result sets only if target supports it.
704 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
706 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
707 with key="host" to get same result.
709 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
710 Function Z3950_resultset_record(s) returns references to records
711 "owned" by resultset. To become owner use Z3950_record_clone.
713 Function z_ext_record handles Extended Services. Thanks to
718 CCL Parser fix: ignore token comma when dealing with and-lists.
720 Documentation updates for COMSTACK.
722 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
723 Changed prototype Z3950_records. For some functions, int parameters
724 were changed to size_t.
726 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
729 New MARC decode/display function, marc_display_exl, which properly rejects
730 non-ISO2709 records. YAZ client uses it.
734 Fix bug: local attribute set wasn't set correctly in PQF strings.
738 * Old Z39.50 codecs no longer supported.
740 Added ZOOM C binding. See http://zoom.z3950.org/
742 Renamed states for COMSTACKs to avoid confusion with events.
744 Implemented cs_look and proper cs_rcvconnect.
746 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
748 Configure detects POSIX threads on OpenBSD.
750 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
751 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
753 When error is returned from present handler, non-surrogate diagnostic
754 is returned in present response (and fetch handler is no longer called).
756 * Minor adjustments to pquery parser (PQF). Token characters may be
757 escaped by using backslash (C-style).
759 PQF parser allows string attribute values to be specified. For @attr,
760 non-numeric characters after the equal-sign are treated as strings
761 (e.g. @attr 9=title).
763 CCL trunction character may be defined (@truncation in file)
765 * function zget_ExtendedServicesRequest sets waitAction to
766 waitIfPossible (was wait).
768 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
771 CCL operator names may be set in field definition files (CCL_bibset).
772 See ccl/bib1 for an example.
774 Fixes in ASN.1 compiler for C++ compatibility.
776 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
777 and "op_or" to avoid conflict with C++.
779 Fixed problem with GNU readline detection on Redhat 7.0.
781 Added step-size for Scan backend handler.
783 Fixed bug that made the frontend server crash when no attribute
784 set was specified for scan.
786 Front-end server automatically switches to original working directory
787 when installed as an NT service. Previously -w had to be specified to
790 Added extended attributes for retrieval module (data1), so that data1
791 records carry d1_readXML/SGML attributes. d1_read also supports
792 null-data rules ( <tag/>)
794 On UNIX when POSIX threads are available, a separate library libyazthread
795 is created. Programmers should link with that library and the yaz library
796 when using threads. The reason for the split was that some applications
797 on Linux, such as Apache, doesn't work well when using shared objects that
800 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
801 (or any frontend server) in SSL mode by specifying ssl: followed by
802 address. Only tested on UNIX.
804 Added feature for CCL module. Virtual structure s=al or s=ol generates
805 and-list and or-list respectively instead of phrase search.
809 * Added prefix "yaz_" for the functions log_init.., log_file.. and
810 log_mask_str. This was done to avoid name conflicts with other libraries
811 (such as other PHP extensions).
813 Added raw OID member for preferred record syntax (request_format_raw)
814 and returned record syntax (output_format_raw) for backend fetch method.
816 Config file yaz-config now accepts options so that it returns specific
817 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
819 Shared library support for UNIX using GNU libtool.
821 * Modified backend interface. Request/Response struct's replaced by
822 one read/write C struct. For example bend_fetchrequest and
823 bend_fetchresult have been replaced by single bend_fetch_rr struct.
824 Every handler - even search has to be registered in bend_init
825 handler. This means that the YAZ library no longer refers to
826 external functions and it makes it possible to make the whole
827 thing a single DLL/SO.
829 Added Segment handler for backend server.
831 Added Zmbol/Zebra administrative functions to YAZ client.
833 Threaded frontend server on UNIX (when POSIX Threads are available).
834 Starting the server with option -T enables multi-threading.
838 Added configure option --enable-comp/disable-comp to control use
839 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
840 located in sub directory asn.
842 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
843 in ${exec_prefix}/bin along with the other programs yaz-client and
846 GNU automake used to maintain makefiles.
850 Changed retrieval module so that we can load records with no abstract
851 syntax defined. Tagpaths in these records are fully composed of string
854 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
858 On UNIX, the generated makefile now supports a proper 'make install'.
859 The prefix can be set via GNU configure to set the install location
860 (default is /usr/local).
862 * YAZ programs client and ztest were renamed to yaz-client and
863 yaz-ztest to avoid conflicts when users install YAZ in "standard"
864 locations, such as /usr/bin,/usr/local/bin,etc.
866 * YAZ Header files were moved from include to include/yaz. YAZ Header
867 files are referred to as include <yaz/log.h> rather than <log.h>.
868 The YAZ include path (-I ..) is therefore the same as before. Programmers
869 should update their #include statements or use -Ipath/include/yaz
870 instead. The main motivation for doing this change is that YAZ header files
871 can be installed in "standard" locations /usr/include,/usr/local/include
872 without introducing conflicts, since ALL YAZ header files are stored
873 in subdirectory yaz (under /usr/include for example).
875 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
876 rather than project/workspace files. We switched because project files
877 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
880 Changed name of logging function, logf, to yaz_log, to prevent name
881 clash with some math-log functions. The YAZ header log.h defines logf
882 to yaz_log (#define) so there should be no incompatibilities by this
885 Added bend_start/bend_stop handlers for server. These handler are
886 called on start/stop of server. For windows they are called whenever
887 a service is started/stopped.
889 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
890 a fairly small ASN.1 compiler written in Tcl. The compiler is located
891 in util/yc.tcl. The auto-generated C code structures are, in a few
892 cases, incompatible with the old decoders. There are differences in the
893 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
894 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
895 The preprocessor variable ASN_COMPILED is defined when the compiled
896 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
897 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
898 wish to use the old encoders/decoders you can specify --disable-yc
901 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
902 version so that it supports both new - and old version of DB Update
904 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
905 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
906 change. The name parameter can be set to 0 in which no name is specified
907 for the construction. The macros odr_implicit and odr_explicit sets name
908 parameter to zero for the construction involved. New macros
909 odr_implicit_tag and odr_explicit_tag are similar to the others,
910 except that a name parameter is added. For programmers' that don't use
911 ODR they probably only need to change the call to z_APDU and z_External.
913 Added access control facility by interfacing the TCP wrapper library.
914 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
915 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
916 name of the daemon and enables the access control as specified in
917 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
919 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
920 den Dool <H.M.vdnDool@kub.nl>.
922 Added reference ID parameter to most functions in server API - refer
923 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
925 Changed name of ccl library to libccl.a (was ccl.a).
927 Fixed bug in decoder for Explain (Category TargetInfo).
929 Added support for GNU readline in client. Thanks to Jacob Poulsen
930 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
932 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
933 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
934 IMPLEMENTATION! This change was made to the development version before
935 the ZIG decided to retract the amendment. If any users MUST be
936 compatible with the original Update definition, PLEASE CONTACT US, and
937 we will include a separate definition corresponding to the old Update
938 ES. Note that because of the change to the ASN.1 of the
939 TaskPackageRecordStructure we cannot define a single structure that
940 will support both versions.
942 * Added const modifier to buffer parameter for some ODR/BER encoding
943 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
944 completeWAIS, odr_dumpBER.
946 Fixed bug in client.c which caused a crash when a scanResponse didn't
947 contain positionOfTerm.
949 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
950 * will cause an error in a client if a non-YAZ target sends both a
951 * list of Scan entries and non-surrogate diagnostics.
953 Retrieval module enhancements. Tag sets may be typed in the reference
954 to it. From the .abs-file the "tagset" directive takes a third optional
955 integer type for the tag set referenced. From a .tag-file the "include"
956 directive takes a third optional type as well. The old "type" directive
957 in the tag set itself is still recognized but acts as the default type
960 Backend interface change. Individual Scan terms returned from bend_scan
961 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
962 in include/backend.h.
964 Retrieval module enhancements. Multiple tag sets and attribute sets may
965 be specified in abstract syntax specs. Revised the error/warning for
966 logging messages reported by the retrieval module when reading the
969 Object Identifier system (oid_..) changed. The API is backwards
970 compatible but the oid-routines now allocates new OID's when needed.
971 Raw OID's may be specified in oid_getvalbyname.
973 YAZ now uses GNU configure to generate Makefile(s).
975 * Minor changes in some of the member names of DeleteResultSetRequest and
976 DeleteResultSetResponse. See include/proto.h.
978 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
979 and added member 'languages' in TargetInfo (which was missing).
981 Changed the way attribute sets are handled in the retrieval
982 module. These are now cached, just like the abstract syntaxes
985 Changed YAZ so that it links with compiled ASN.1.
987 Added Explain-schema definitions and mapping routines. The following
988 Explain categories have been implemented: AttributeDetails,
989 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
991 Fixed minor bug in Windows version of Server Library.
993 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
995 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
997 Added EXTERNAL: UNIverse Resource Report (non-standard).
999 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
1000 ENUMERATED and SET OF.
1002 * Added 'const' to some of the char pointer arguments for the
1003 functions, data1_read_node, data1_getelementbytagname,
1004 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
1007 Fixed bug in data1_insert_taggeddata - the last_child member of
1008 parent wasn't initialised.
1010 * Changed data1_read_record and data1_read_node so that the supplied
1011 "SGML"-buffer is read-only. In particular the resulting data1 - tree
1012 doesn't refer to any parts of the "SGML"-buffer.
1014 Fixed bug in server library (Windows version of statserv_remove).
1016 * Changed code so that it compiles as C++. The type definition
1017 of Odr_fun which is a member of Odr_arm was changed. The result is,
1018 that an explicit typecast is needed for the fun pointer when
1019 using Odr_arm - as in:
1020 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
1022 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
1024 Implemented the new structured date and time definition as approved
1025 by the ZIG. Added schemaId element to the specificTag in Espec-1
1026 (also approved at the last ZIG). Thanks to RVDM.
1028 Added some Object identifiers (RVDM).
1030 Changed the Update Extended Service (RVDM).
1032 Added command "refid" to client which specifies referenceId for
1033 the following requests.
1035 Implemented extended service handling for server. See ztest.c
1036 for an example as well as backend.h. New handlers are registerd
1037 in the Init handler.
1039 * Changed interface for sort in server.
1041 Added new members to statserv_options_block. It allows a server
1042 to read options from another source than just the command line. Thanks
1043 to Charles Woodfield.
1045 * Changed definition of Z_Triple in file prt-grs.h - member boolean
1046 renamed to zboolean. Some C++ compilers complained about the name.
1048 Minor changes to gils.abs. Added index 's' (sort) on title
1049 and date/time-last-modified.
1051 --- 1.4pl2 1998/1/30
1053 Fixed bug in server library regarding inetd mode (-i). This bug
1054 was introduced by release 1.4.
1056 --- 1.4pl1 1998/1/29
1058 Added sort facility in client and backend server interface.
1060 Fixed problem with dependencies in Makefile(s).
1062 Fixed bugs for encoders/decoders of extended services and
1065 Implemented sub-tree feature for schemas. Sub-trees are
1066 referenced in *.abs-files. See explain.abs for an example
1067 of the use of this feature.
1069 Modified bib1.att; local attributes for ANY didn't include
1070 ANY itself (only affects use of the retrieval module).
1072 Fixed bug in plain SGML reader in function data1_read_node:
1073 tags with prefix "var" was incorrectly interpreted as variants.
1075 Added feature "sub-schemas" to enable references to - and definitions
1076 of - group of elements.
1078 * Removed member parent from type data1_element (in data1.h).
1080 Implemented function odr_nullval() that returns the value of
1083 * Removed member num_children from data1_node (in data1.h).
1085 Made NT service interface part of the server library. The
1086 function statserv_main uses the NT service when required and
1087 calls the statserv_start / statserv_close routines.
1089 Routine zget_SearchRequest and zget_PresentRequest fills
1090 resultSetName/Id member with "default" instead of "Default".
1092 Fixed memory leak in server. Request queue member wasn't freed.
1094 Fixed nmem_exit so that memory is freed.
1098 Revised the CCL parser utility to be thread safe.
1100 Added function, oid_ent_to_oid, to replace the function
1101 oid_getoidbyent, which is not thread safe.
1103 * Added nmem_init and nmem_exit to initialize and release
1104 NMEM resources. Function nmem_init should be called once in the
1105 initial thread before NMEM/ODR is used. statserv.c and client.c
1106 have been changed accordingly. The change was necessary to make
1107 NMEM thread safe. The NMEM memory pool is shared amongst threads
1108 in a process. Unix-based applications will still work fine without
1111 Added NT Services interface for the the Z39.50 (statserv) Server.
1112 Refer to the ztest.c source on the usage.
1114 Windows 95/NT port using MSVC5.0. Project files are included in the
1117 * Defined new 'global' handle for the retrieval (data1) system. The
1118 new handled, data1_handle, describes the state of the data1 system.
1119 This handle is passed as first argument to virtually all
1120 data1 related routines. The functions data1_create and data1_destroy
1121 creates and destroys a data1 handle respectively.
1123 Added ODR encode stream member to all backend request structures
1124 init, search, scan etc. This stream should be used to allocate all
1125 memory used for the response when thread safe operation is needed.
1127 Changed the comstack utility, cs_addstr, to be thread safe. The
1128 returned hostname string returned by the function is now part the
1131 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
1132 function. The cs_straddr takes a COMSTACK handle as argument, so this
1133 function must be used after cs_create and before bind/connect.
1134 This function is thread safe.
1136 Moved test server to 'ztest' directory - generic server code still
1137 in 'server' directory.
1139 Made prefix query (pquery.c) utility thread safe.
1141 Added new function modifier YAZ_EXPORT to 'export' public DLL
1142 functions when using windows (see include/yconfig.h).
1144 Added definitions to the OID database (util/oid.c) (RVDM).
1146 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
1148 Added call to ccl_rpn_delete in client program.
1150 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
1151 release of RPN structure.
1153 Added support for C++, headers uses extern "C" for public definitions.
1154 With input from RVDM.
1156 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
1157 Thanks to Ronald van der Meer (RVDM).
1159 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
1161 Added support for private extensions to the OID database
1162 (oid_setprivateoids()). Thanks to RVDM.
1164 Added optional, physical ANY (key replication)
1166 Fixed null-reference problem in GRS-1 output filter.
1168 Proximity operator added to Prefix Query Format (PQF).
1170 In test client command "base" accepts multiple databases.
1172 Fixed bug in cs_close stack that caused trouble with WINSOCK.
1176 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1178 Smallish bug-fixes in the new encoders/decoders (explain).
1180 Bug fixed in DeleteRequest.
1182 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
1184 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1186 Added SOIF syntax (using private OID for now) to retrieval module and client.
1188 Added Update extended service.
1190 Added SearchResult-1 additional info structure.
1192 Added optional CCL (ISO8777) interpreter as separate module. Available
1195 --- 1.2 1996/6/10 (1st anniversary release)
1197 Added Summary record syntax. Lightly tested.
1199 Added OPAC record syntax. Untested.
1201 Added ResourceReport service encoders/decoders. Untested.
1203 Fixed bug in z_Unit - wrong tagging on unitSystem.
1205 Fixed bug in the DiagRecs decoder.
1207 Added options for max PDU size and session timeout to frontend-server.
1209 Added documentation of query-language parsers and other supporting utilities.
1211 [frontend-server] Added Attribute set to the bend_scanrequest API.
1213 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
1214 surrogate diagnostics were generated.
1216 [retrieval] Allow multiple local values for attribute.
1218 [retrieval] Allow multiple attributes per element in .abs files. index type.
1220 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
1222 --- 1.1pl2 1996/4/10
1224 Minor changes, mostly specific to Zebra's requirements (retrieval)
1228 Repaired bug in frontend server when running multiple listening
1229 endpoints in dynamic mode.
1231 z_External() now won't break if a known, ASN.1 value comes encapsulated
1232 in an octet-string. The value will pass through unmodified in an Odr_oct.
1234 Added a bit of code to the demo client to decode & display
1235 ASN.1-structured records represented in the octet-aligned branch of
1236 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
1238 Added z_ext_getentbyref() to the ASN module. Doc updated.
1240 * Completed the SCAN definition in the ASN module. This may break SCAN
1241 code based on older YAZ-versions at compile-time. The fix is easy -
1244 * Added 'displayTerm' and OtherInformation to the TermInfo structure
1245 under the SCAN definition. Remember to initialize this, server-people.
1247 Comstack should now support the WAIS protocol in TCP/IP mode. Note
1248 that this does not extend to ODR and ASN.
1250 Comstack allows insertion of established socket (primarily for
1251 inetd-operation of servers). Doc updated.
1253 Front-end server can now start from the inetd in TCP mode. Doc
1256 --- 1.0pl4 1996/1/24
1260 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
1261 the rank and record number.
1263 Adjustments to the frontend server.
1265 Fixed diagnostic BER dumper. It ignored the file argument.
1269 Various changes to retrieval module.
1271 Changed the union discriminators of the protocol files from enums to
1272 ints paired with #defines.
1274 *Changed oident.class to oident.oclass to avoid a reserved word in C++
1277 *Changed operator in the RPN structure to 'roperator', again to avoid a
1280 Fixed problems in Explain decoders/encoders.
1282 --- 1.0pl2 1995/12/6
1284 Memory bug in log module fixed.
1286 --- 1.0pl1 1995/12/5
1288 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1290 Bug in Explain DatabaseInfo module fixed.
1292 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1296 The shift to v1.0 signals that we now consider the *core* functionality
1297 of YAZ reasonably stable (the core being more or less equivalent to
1298 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1299 tested (Explain not at all - though that will happen soonish).
1301 Minor changes to code to support Windows port.
1303 Various minor changes after we're getting to use GRS-1 & co. more.
1305 Added Espec-1 format.
1307 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1308 of the protocol and it cannot be selected when encoding (maps into 'string'
1309 when decoding). Needed to talk to some servers.
1311 Demo client can request simple element set names.
1313 Added Diagnostic Format encoders/decoders.
1315 Added simple Close handling to frontend server (no hooks for resource
1316 reporting yet), and demonstration client.
1318 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1320 --- 1.0b3 1995/08/24
1322 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1323 handled incorrectly when records were requested in the searchResponse. This
1324 will only affect you if you use the frontend-server.
1326 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1327 Test-client will ask for and print GRS1. Ztest will return dummy records
1330 Added Explain encoders/decoders to the service-level API. Untested.
1332 Added Extended Services: Item Order encoders and decoders to the Service-
1333 level API. Untested. We could use a recent copy of the pertinent bits
1334 of the ILL protocol to add those bits.
1336 Added diagnostic format 1 encoders/decoders to the service-level API.
1339 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1340 odr_cons.c, which causes a more correct output.
1342 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1343 was always set to 0 when no records were requested in the searchRequest.
1345 * Added better external-handling. This shouldn't harm old code that
1346 *encodes* externals. It can break code that looks for a
1347 'single-ASN1-type' representation, since those types that are known
1348 are now decoded immediately. Look at the SUTRS sample code in
1349 seshigh.c and client.c. Documentation updated.
1351 Handling of structured records in bend_fetchresponse. Length -1 marks
1352 structured record, type is deduced from format field.
1354 --- 1.0b2 1995/06/27
1355 Fairly quick maintenance release to add SUTRS support.
1357 Fixed handling of SUTRS records in the demonstration client.
1359 * Added format field to the bend_fetchrequest and bend_fetchresponce
1360 structures of the backend API (frontend server). When the record is
1361 returned, the value of the format field is mapped to an OID. The
1362 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1363 of the record. The special value VAL_NONE in the bend_request means
1364 that no specific format was requested by the client. Documentation
1365 updated accordingly. Test server (ztest) will return a fixed dummy
1366 SUTRS record if your client requests SUTRS.
1368 Documentation updated accordingly.
1370 You can now set external libraries and RANLIB support in the top-level
1374 First public release.