1 Possible compatibility problems with earlier versions marked with '*'.
3 Fixes for MARC-8 in yaz_iconv character set utilies. The MARC-8
4 to UTF-8/UCS conversion is now only based on codetables.xml.
6 yaz_marc_decode_buf sets leader pos 9 to "a" for MARCXML output.
10 Add support for more "commit changes" in ZOOM (uses Extended Services).
12 For yaz-client, command set_marcdump <file> / -m <file> dumps SUTRS/XML/..
15 Yet another small fix for configure of SSL.
19 Fix SSL libs for configure when --with-openssl=DIR is given.
23 Add autoconf m4 macro YAZ_DOC for YAZ documentation setup (docbook).
25 SSL comstack now uses yaz.pem certificate file on server side
26 by default. Certificate filename can be configured by calling
27 comstack function cs_set_ssl_certificate_file before cs_bind is used.
29 Fix bug regarding multiple calls to ZOOM_connection_connect.
31 Implement cs_set_ssl_ctx which sets SSL_CTX for SSL comstack.
33 Do not create SSL_CTX in cs_create (ssl_type). Create in tcpip_bind,
34 tcpip_rcvconnect instead. This allows user to set custom SSL_CTX.
36 ZOOM now allows inspection of X509 peer certificate for verification.
37 The X509 buffer is retrived by reading ZOOM option "sslPeerCert".
39 Removed libyazssl.la. When SSL is enabled, libyaz.la has SSL support and
40 all programs have too (yaz-ztest, yaz-client, zoom..). May not be
41 as "modular" but it simplifies things.
43 Added cs_get_peer_certificate to that returns peer X509 PEM.
45 Added cs_get_ssl that returns SSL handle (SSL *) for SSL comstack; returns
46 NULL if SSL is unavailable.
48 Documentation about MARC decoding tools.
50 Fix --disable-tcpd to really disable tcpd. Patch by Robin H. Johnson.
54 Rename CHANGELOG to NEWS to follow GNU style packing.
56 Fix bug with missing initialization of member in init_diagnostics.
57 This bug affects threaded version of GFS server.
61 Use wrbuf_xmlputs_n instead of wrbuf_write_cdata to avoid clash with
64 Ensure zlib.dll is packed with Windows install.
68 Fix encoding of xsd:string to use text instead of CDATA.
70 Fix endless loop in CQL parser with unbalanced ".
72 Use a more compact way to store MARC-8 conversion tables.
74 --- 2.0.16 2004/03/16 Debian only
76 Oleg Kolobov Fixed a bug in yaz_iconv regarding conversion to
79 Update CQL parser to use new CQL 1.1 modifiers for booleans and
86 Another fix for decoding of XML packed records.
90 Fixes for Chunked encoding. White space not ignored after length spec.
92 Update NS and use default NS for SRW diagnostic elements.
96 Implement ZOOM_resultset_cache_reset which resets record cache.
98 Implement ZOOM_resultset_sort which sorts a result set.
100 Implement chunked HTTP transfer.
102 For SSL, use -lssl -lcrypto on systems that don't have pkg-config.
104 --- 2.0.12 2004/02/16
106 Added member 'schema' to bend_explain_rr structure so that backend
107 can specify explain record identifier. Defaults to Zeerex 2.0.
109 Fix encoding of OID's of form 1.0.X. Bug introduced in 2.0.11.
111 --- 2.0.11 2004/02/16
113 * SRW/SRU 1.1 updates: updated diagnostic in srw.h to use uri instead
116 Added init command for yaz-client which sends "extra" init request.
118 Fixed two bugs in OID codec - ber_oidc. Throw error when encoding/decoding
119 bad truncated OID. Fix decoding of OID X.Y... when X=2 and Y>39.
121 Fixed a bug in ASN.1 compiler that caused Type-1 Operator codec to fail.
123 Make ZOOM error code for "invalid query".
125 Fixed compilation for SSL which wasn't properly enabled for all platforms.
127 --- 2.0.10 2004/02/05
129 For yaz.m4, allow second argument for YAZ_INIT to hold minimal version of
132 * SRW/SRU 1.1 updates. Diagnostic code now a URI.
134 Added option -p <file> to make Generic Frontend Server to write PID file.
136 Added option -D to put Generic Frontend Server in background on its own.
138 Make ZOOM C recognize option "password". If unset, "pass" is used
139 (for backwards compatibility).
141 Fixed a bug in Generic Frontend Server that could make it crash if a
142 client sets characterSetNegotation bit, but didn't pass negotiation stuff
145 New YAZ client command, zversion, that sets Z39.50 version (1,2,3..).
146 Must be issued before open, in order to be in effect.
148 --- 2.0.9-6 2004/01/12 Debian/Windows
150 Make the SRU server more picky WRT unknown params, etc.
152 Bug fix: ZOOM scan response didn't return displayTerm - when present.
154 New YAZ client command, options, that sets Z39.50 options.
156 New utility functions yaz_init_opt_{encode,decode} to encode/decode Z39.50
157 options from a string of tokens (one token for each option bit).
159 Update SRW diagnostic code messages.
161 --- 2.0.9-5 2004/01/07 Debian/Windows
163 Handle user defined stylesheet for SRW/SRU.
165 --- 2.0.9-4 2004/01/06 Debian/Windows
167 Fix bug in decoding of Content-Length.
169 --- 2.0.9-3 2004/01/06 Debian/Windows
171 Fix a bug with decoding of XML packed records.
173 --- 2.0.9-2 2004/01/05 Debian only
175 Allow empty ODR (NMEM=0) for odr_oiddup and odr_getoidbystr.
177 Fix bug in SRW/SRU diagnostics decoding.
181 Fixed bug in Generic Frontend Server which could drop records exceeding
182 preferred message size. Reported and fixed by Irina Dijour.
184 Fixed calculation of package size for structured records in Generic
185 Frontend Server. Reported and fixed by Irina Dijour.
187 Fixed namespace for SRW/SRU diagnostics.
189 Fixed SEGV in yaz-client that occured for HTTP connection errors.
193 * SRW/SRU 1.1. Since the Namespace has changed for SRW/SRU, it means that
194 this version is incompatible with version 1.0 and older YAZ SRW/SRU
197 CQL changes to reflect recent changes to the specification:
198 * Documentation talks about context sets instead of index sets.
199 * Documentation talks about indexes instead of qualifiers.
200 * The CQL-to-PQF transformer's configuration file now uses
201 "index.set.name = <attributes>" instead of the old form
202 "qualifier.set.name = <attributes>". (Both forms are still
203 understood but the latter is deprecated.)
204 * CQL terms with no explicit index specified are now interpreted as
205 cql.serverChoice instead of srw.serverChoice (which of course
206 behaves exactly the same.)
210 MARC conversion can now generate ISO2709 output in another
211 character set. yaz-marcdump uses this facility if you invoke it
214 Added missing C decl macros for include/yaz/{soap.h,srw.h,cql.h}, so that
215 functions from there can be used from C++.
219 Frontend server now transfers memory from decoded packages to stream
222 NMEM now clears freed blocks with 'Y' (hex 59) to force bad memory
223 references to show up.
225 ZOOM-C now supports standard ZOOM option names as described in v1.4 of
226 the ZOOM Abstract API. The older names for the same options are still
227 also supported for the benefit of old applications.
229 ZOOM-C supports "implementationId" and "implementationVersion" options
230 to go along with "implementationName". These allow the user code to
231 specify identification strings to be sent to servers.
232 Add OID for the new ExtLite attribute set.
234 Add OIDs for NACSIS-CATP, FINMARC2000 and MARC21-fin record-syntaxes,
235 as requested/supplid by Ere Maijala <ere@atp.fi>
237 For generic frontend server, reverse the order of
238 "toolkit-supplied / application-supplied" strings sent as implementationId,
239 Name and Version. Also, remove the spaces around the slash. This brings
240 the GFS in line with the behaviour of ZOOM-C on the client side.
242 Add function ZOOM_scanset_display_term.
244 yaz-client shows scan displayTerm if present.
246 Utility yaz-iconv is now installed by default along with the man page
249 Extend configure check for OpenSSL to use pkg-config where available (such
252 Incorporate patch by Morten Bogeskov which allows a Unix file socket
253 server to specify uid/gid/mask for socket using the format
254 unix:[user=uid,][group=gid,][umask=mask,]file=path
255 If file= is omitted the existing format is assumed, e.g.
257 in which case the mask is 0666 (rw for everybody).
259 Major restructure of YAZ source. All source in libyaz is in src directory.
260 Programs in client (yaz-client), ztest (yaz-ztest), zoom (zoom programs),
261 util (utility programs such as ASN.1 compiler, yaz-marcdump).
263 Added man page for utility yaz-marcdump (used to be called marcdump).
264 yaz-marcdump is installed by 'make install'.
266 Fixed a memory leak in Generic Frontend Server that occurred when decoding
267 of incoming package failed.
269 Fixed a potential DOS attack vulnerability in COMSTACK/ODR.
271 Change prototype of odr_perror: add const to message string.
273 New function yaz_log_reopen which reopens log file (for log rotate, etc.)
275 * Blocking parameter for COMSTACK cs_create is now a bit mask rather
276 than a blocking flag. Bit 0 is set for blocking, reset for non-blocking.
277 Bit 1 is set if cs_addrstr should avoid DNS lookup; reset for full
278 DNS lookup. There should not be any compatibility problems with this
279 assuming that blocking=1 or 0 is used.
281 Fix bad reference in UNIX comstack in function cs_addrstr.
283 Fix for compilation on AIX.
285 The generic front-end server (server/seshigh.c) now supports returning
286 Init diagnostics to the client in User-information-field, in
287 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
292 Allow any CQL relation (not just all,any,exact,scr).
294 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
295 that features the same UI.
297 Implemented command update0 in YAZ client which is equivalent to
298 update but uses old of Ext Update ASN.1.
300 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
301 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
302 Previously no OID was used for this info.
304 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
305 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
306 returns 'malformed search term' otherwise.
308 SortResponse member resultCount now set to NULL in sort handler of
311 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
314 Add three new utility functions for translating OIDs between various
315 formats -- symbolic name such as "Usmarc", minus-1-terminated int
316 arrays and dotted strings such as "1.2.840.10003.9.5.1":
317 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
318 char *oid_to_dotstring(const int *oid, char *oidbuf);
319 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
321 Reverted modifications for ES Update definition for z_IU0Update
322 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
323 is back to YAZ 2.0.2.
325 String value attributes for CCL parser.
327 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
328 which their FirstSearch server returns in Init responses, sometimes
329 carrying useful diagnostic information when Init fails. This has the
330 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
331 "z39.50/oclcui.asn", where its definition is somewhat different from
332 what OCLC document on their web-site, as required to interoperate with
335 Support for anonymous authentication in yaz-client. Use the command
338 * Fix the OID of the Index Data-local "admin" Extended Service from
339 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
340 the 1000, which indicates a locally-defined OID, was a mistake.
344 Fix CCL directive @case handling so that it affects string match for
345 both CCL keywords and qualifiers.
347 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
348 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
349 Decoder has been updated with ASN.1 changes as listed in
350 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
351 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
352 z_IUUpdate, remains unchanged.
354 ZOOM_record_get may now return a record in a specific character set.
355 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
356 "from" is the character set of record as returned by target. "to" is
357 the character set to be returned. If omitted, "to" is UTF-8.
359 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
361 New ODR utility, odr_getelement, which returns name of element for
362 which encoding/decoding failed.
364 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
365 in cases where a required element was omitted.
367 Bug fix: some MARC8 sequences were not converted.
369 New ZOOM option "step" which specifies number of records to be
370 retrieved in one chunk. Used in conjunction with "start" and "count".
372 SRW support for yaz-client. Use scheme http: to use it, e.g.
375 yaz-client no longer does (un)intelligent character set conversions
376 by default. Can be enabled with charset and marc_charset commands.
378 xmalloc trace fix for 64-bit systems such as DEC alpha.
380 Solaris 2.6 compile fix.
382 New function, cql_strerror() translates SRW error codes, as returned
383 by cql_transform_error(), into human-readable English strings. Used
384 in yaz-client diagnostics when appropriate.
386 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
387 converts it into a type-1 query which is sent to the server. This
388 makes CQL available for use with all Z-servers, as opposed to the tiny
389 minority that can handle CQL queries themselves.
393 New Debian package layout similar to the Redhat Package layout.
395 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
396 and search result respectively.
400 Redhat package is now several packages: libyaz (runtime libraries),
401 libyaz-devel (development and documentation, and yaz (utility programs).
402 Package spec file by Morten Bøgeskov.
404 New member 'schema' in struct bend_fetch_rr which the name of requested
405 schema (SRW/SRU) for record (or NULL if none was given). The fetch
406 handler MAY set this to reflect the schema of the returned record.
408 New member 'display_term' in struct scan_entry. GFS now sets member entries
409 and allocates scan entries to be filled by user scan handler. In previous
410 version, entries member was allocated by the scan handler. That still works,
411 but the GFS will ignore member display_term - assuming it was NOT set by
412 the handler. The fact that the GFS now allocates the entries both allows
413 for new members and makes a scan handler easier to write.
415 Fix CQL lex buffer overflow.
417 SRW/SRU recordPacking. For SRW default recordPacking is string. For
418 SRU default recordPacking is string.
420 SRU protocol support for frontend server.
422 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
424 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
426 Added scan for the ZOOM shell (zoomsh).
430 * String Identifers for Schemas (Amendment 5).
431 http://lcweb.loc.gov/z3950/agency/amend/am5.html
432 Old definition for schema
433 Odr_oid *schema; /* OPT */
438 Z_InternationalString *uri;
439 #define Z_Schema_oid 1
440 #define Z_Schema_uri 2
443 * resultCount parameter to Sort Response (Amendment 1).
444 http://lcweb.loc.gov/z3950/agency/amend/am1.html
446 Support for SRW 1.0 over HTTP. This is an optional feature and
447 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
450 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
451 on the same port. SRW SearchRetrieveRequests are mapped
452 to bend_init,bend_search,bend_fetch,bend_close.
454 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
456 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
457 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
459 ZOOM connections are SRW based if schem http is used for hostname
460 in connect, e.g. z = ZOOM_connection_new("http://myserver");
461 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
463 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
464 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
465 distance=n, order=true/false, relation=le, prox unit=word. If
466 n is omitted, distance 1 is used.
468 Fixed problem with C compiler include path in wrong order.
470 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
471 on Solaris. Patch from Ko van der Sloot.
473 New MARC decode API. All new functions operate on a yaz_marc_t
474 handle. The most important new functions are: yaz_marc_create,
475 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
476 decode and destroy respectively. Decoder can produce formats
477 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
478 include/yaz/marcdisp.h.
480 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
481 to UTF-8, UCS-32, wchar_t or Latin-1.
483 * Prototypes for yaz_iconv_-functions moved to separate header
484 include/yaz/yaz-iconv.h.
486 Make a few private functions 'static' in unix.c. This prevents
487 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
489 For ZOOM connection, the options targetImplementation{Id,Name,Version}
490 are set when Init Response is received.
492 New function ZOOM_connection_error_x similar to ZOOM_connection_error
493 but returns diagnostic set as well.
495 New function yaz_strerror which is a portable wrapper for
496 strerror/strerror_r/GetLastMessage.
498 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
499 is returned for MARC. If type is "oai", then OAI MARC is returned.
501 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
506 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
508 Fix bad race conditions on SIGTERM and terminate gracefully in
511 Move retrieval (data1) module to Zebra since nobody seems to be
514 Add GRS-1 render for ZOOM using same format as yaz-client.
518 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
520 Fix broken ESpec handling in data1 module.
522 SGML reader parses comments and makes them part of the data1 tree.
524 Added several type casts so that YAZ compiles as C++ code.
526 ZOOM didn't handle PDU encoding failures properly.
528 Added more Bib-1 diagnostics (approved extensions).
530 GNU configure: better check for iconv.
532 More portable use of accept, getpeername. Check for socklen_t. Use
533 int/size_t if socklen_t is not defined.
537 PQF parser rejects bad queries - including those with extra
538 characters in them. PQF parser used to silently ignore that.
539 Cleaner API for PQF added, which allows you to get detailed
540 error information for bad queries (see yaz/pquery.h).
542 Fixed bug in ZOOM_record_get for type "database".
544 Implemented mini iconv library supporting conversions between
545 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
547 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
551 Fixed ZOOM C record cache so that preferredRecordSyntax and
552 elementSetName is used to check for already fetched records.
556 Added three members in bend_initrequest structure to facilitate
557 character set negotiation.
559 Fixed a bug in frontend server that could cause indefinite
560 loops under rare conditions.
562 Revised character set utilities (charneg.h) so that encoding
563 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
565 For PQF, directive @term <type> sets term type for Scan/Search.
566 Here <type> is general, string, numeric, null. The term type
567 is inherited - just like @attr.
569 New call odr_set_charset that sets character set conversion for
570 international-strings on a ODR stream. Prototype is:
571 int odr_set_charset(ODR o, const char *to, const char *from);
572 The InternationalString is still represented as C string in YAZ
573 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
574 won't). On the protocol level, you can use any encoding.
576 Support for UNIX sockets in ZOOM.
578 Solaris recv sometimes returns errno == ENOENT. It is treated as
579 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
581 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
582 both client and server. Code by Morten Bøgeskov.
586 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
587 that they can be used directly from Visual Basic. You must recompile
588 your windows APP if you're using ZOOM.
590 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
591 Commands "lang" and "charset" sets language and character set respectively.
592 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
593 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
595 Attributes from multiple CCL fields may be OR'ed rather than merged
596 using directive "@field or". Fields are still merged by default -
597 equivalent to "@field merge".
599 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
602 Fixed bug in zget for parameter ExtendedServicesResponse.
608 Added PQF feature: '@attr type=value' may be written as '@type=value'.
610 Client displays USR.1:SearchResult-1 (hits per term).
612 Additional Search Info for search in Generic Frontend Server.
614 Fixed CCL parsing of "field=s".
616 WIN32 installer - using the excellent NSIS software from nullsoft.
618 Fixed CCL parsing of "field = - <number>".
620 Added function yaz_marc_decode that decodes MARC for line mode
621 display or XML (similar to that used by JZKit).
623 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
624 Z39.50. But ISO/ILL was, however.
626 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
627 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
629 http://lcweb.loc.gov/z3950/agency/amend/am2.html
630 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
634 New YAZ client features: Command completion and new commands:
635 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
636 Code provided by Jacob Poulsen.
638 New call oid_trav, that visits all registered OIDs via callback.
640 Function ZOOM_record_get now returns const char pointer rather than
641 void pointer. It saves a lot of type casts.
643 For YAZ client, command "auth" now allows you to set authentication
644 in IdPass style. It is enabled when three tokens are given - order
645 is user, group and password.
647 Fix memory leaks in MARC record handling for ZOOM.
649 New option for YAZ client, -k <kilobytes> that sets
650 maximum record size. Similar to -k option for generic frontend
651 server and yaz-ztest.
653 More fixes for scan. Non-zero stepSize handled. OID's fixes.
655 Prefix query parser reports "fail" when bad attribute set is given.
657 Fix in MARC decoder. Proximity logging. Fix for attribute set
658 in scan handler for server. Patches by Shigeru Ishida.
660 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
663 Configure option --with-openssl=<dir> now works when a directory is
664 specified. Patch provided by Morten Bøgeskov.
666 New option for YAZ client, -u <auth>, that sets authentication.
668 ZOOM fix: error information was sometimes "missing", since error
669 was cleared/reset too when it shouldn't.
671 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
675 Scan for ZOOM API. New object ZOOM_scanset. New functions
676 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
677 ZOOM_scanset_destroy.
679 New ZOOM function, ZOOM_connection_last_event, that returns type
680 of last event (such as "receive data", "send data", "apdu received",
683 New ZOOM option, schema, that specifies schema for retrieval.
685 New CCL feature. Qualifiers can be aliases for one or more
686 other qualifiers (if more than one is given, OR is used).
688 ZOOM uses named result sets if target supports it.
690 Two new YAZ client commands: . (dot, which sources a script of YAZ
691 client commands), and ! (to execute shell command.). Implemented
694 Working on Debian packages.
698 YAZ client enables named result sets only if target supports it.
700 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
702 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
703 with key="host" to get same result.
705 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
706 Function Z3950_resultset_record(s) returns references to records
707 "owned" by resultset. To become owner use Z3950_record_clone.
709 Function z_ext_record handles Extended Services. Thanks to
714 CCL Parser fix: ignore token comma when dealing with and-lists.
716 Documentation updates for COMSTACK.
718 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
719 Changed prototype Z3950_records. For some functions, int parameters
720 were changed to size_t.
722 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
725 New MARC decode/display function, marc_display_exl, which properly rejects
726 non-ISO2709 records. YAZ client uses it.
730 Fix bug: local attribute set wasn't set correctly in PQF strings.
734 * Old Z39.50 codecs no longer supported.
736 Added ZOOM C binding. See http://zoom.z3950.org/
738 Renamed states for COMSTACKs to avoid confusion with events.
740 Implemented cs_look and proper cs_rcvconnect.
742 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
744 Configure detects POSIX threads on OpenBSD.
746 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
747 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
749 When error is returned from present handler, non-surrogate diagnostic
750 is returned in present response (and fetch handler is no longer called).
752 * Minor adjustments to pquery parser (PQF). Token characters may be
753 escaped by using backslash (C-style).
755 PQF parser allows string attribute values to be specified. For @attr,
756 non-numeric characters after the equal-sign are treated as strings
757 (e.g. @attr 9=title).
759 CCL trunction character may be defined (@truncation in file)
761 * function zget_ExtendedServicesRequest sets waitAction to
762 waitIfPossible (was wait).
764 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
767 CCL operator names may be set in field definition files (CCL_bibset).
768 See ccl/bib1 for an example.
770 Fixes in ASN.1 compiler for C++ compatibility.
772 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
773 and "op_or" to avoid conflict with C++.
775 Fixed problem with GNU readline detection on Redhat 7.0.
777 Added step-size for Scan backend handler.
779 Fixed bug that made the frontend server crash when no attribute
780 set was specified for scan.
782 Front-end server automatically switches to original working directory
783 when installed as an NT service. Previously -w had to be specified to
786 Added extended attributes for retrieval module (data1), so that data1
787 records carry d1_readXML/SGML attributes. d1_read also supports
788 null-data rules ( <tag/>)
790 On UNIX when POSIX threads are available, a separate library libyazthread
791 is created. Programmers should link with that library and the yaz library
792 when using threads. The reason for the split was that some applications
793 on Linux, such as Apache, doesn't work well when using shared objects that
796 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
797 (or any frontend server) in SSL mode by specifying ssl: followed by
798 address. Only tested on UNIX.
800 Added feature for CCL module. Virtual structure s=al or s=ol generates
801 and-list and or-list respectively instead of phrase search.
805 * Added prefix "yaz_" for the functions log_init.., log_file.. and
806 log_mask_str. This was done to avoid name conflicts with other libraries
807 (such as other PHP extensions).
809 Added raw OID member for preferred record syntax (request_format_raw)
810 and returned record syntax (output_format_raw) for backend fetch method.
812 Config file yaz-config now accepts options so that it returns specific
813 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
815 Shared library support for UNIX using GNU libtool.
817 * Modified backend interface. Request/Response struct's replaced by
818 one read/write C struct. For example bend_fetchrequest and
819 bend_fetchresult have been replaced by single bend_fetch_rr struct.
820 Every handler - even search has to be registered in bend_init
821 handler. This means that the YAZ library no longer refers to
822 external functions and it makes it possible to make the whole
823 thing a single DLL/SO.
825 Added Segment handler for backend server.
827 Added Zmbol/Zebra administrative functions to YAZ client.
829 Threaded frontend server on UNIX (when POSIX Threads are available).
830 Starting the server with option -T enables multi-threading.
834 Added configure option --enable-comp/disable-comp to control use
835 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
836 located in sub directory asn.
838 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
839 in ${exec_prefix}/bin along with the other programs yaz-client and
842 GNU automake used to maintain makefiles.
846 Changed retrieval module so that we can load records with no abstract
847 syntax defined. Tagpaths in these records are fully composed of string
850 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
854 On UNIX, the generated makefile now supports a proper 'make install'.
855 The prefix can be set via GNU configure to set the install location
856 (default is /usr/local).
858 * YAZ programs client and ztest were renamed to yaz-client and
859 yaz-ztest to avoid conflicts when users install YAZ in "standard"
860 locations, such as /usr/bin,/usr/local/bin,etc.
862 * YAZ Header files were moved from include to include/yaz. YAZ Header
863 files are referred to as include <yaz/log.h> rather than <log.h>.
864 The YAZ include path (-I ..) is therefore the same as before. Programmers
865 should update their #include statements or use -Ipath/include/yaz
866 instead. The main motivation for doing this change is that YAZ header files
867 can be installed in "standard" locations /usr/include,/usr/local/include
868 without introducing conflicts, since ALL YAZ header files are stored
869 in subdirectory yaz (under /usr/include for example).
871 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
872 rather than project/workspace files. We switched because project files
873 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
876 Changed name of logging function, logf, to yaz_log, to prevent name
877 clash with some math-log functions. The YAZ header log.h defines logf
878 to yaz_log (#define) so there should be no incompatibilities by this
881 Added bend_start/bend_stop handlers for server. These handler are
882 called on start/stop of server. For windows they are called whenever
883 a service is started/stopped.
885 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
886 a fairly small ASN.1 compiler written in Tcl. The compiler is located
887 in util/yc.tcl. The auto-generated C code structures are, in a few
888 cases, incompatible with the old decoders. There are differences in the
889 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
890 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
891 The preprocessor variable ASN_COMPILED is defined when the compiled
892 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
893 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
894 wish to use the old encoders/decoders you can specify --disable-yc
897 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
898 version so that it supports both new - and old version of DB Update
900 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
901 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
902 change. The name parameter can be set to 0 in which no name is specified
903 for the construction. The macros odr_implicit and odr_explicit sets name
904 parameter to zero for the construction involved. New macros
905 odr_implicit_tag and odr_explicit_tag are similar to the others,
906 except that a name parameter is added. For programmers' that don't use
907 ODR they probably only need to change the call to z_APDU and z_External.
909 Added access control facility by interfacing the TCP wrapper library.
910 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
911 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
912 name of the daemon and enables the access control as specified in
913 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
915 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
916 den Dool <H.M.vdnDool@kub.nl>.
918 Added reference ID parameter to most functions in server API - refer
919 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
921 Changed name of ccl library to libccl.a (was ccl.a).
923 Fixed bug in decoder for Explain (Category TargetInfo).
925 Added support for GNU readline in client. Thanks to Jacob Poulsen
926 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
928 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
929 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
930 IMPLEMENTATION! This change was made to the development version before
931 the ZIG decided to retract the amendment. If any users MUST be
932 compatible with the original Update definition, PLEASE CONTACT US, and
933 we will include a separate definition corresponding to the old Update
934 ES. Note that because of the change to the ASN.1 of the
935 TaskPackageRecordStructure we cannot define a single structure that
936 will support both versions.
938 * Added const modifier to buffer parameter for some ODR/BER encoding
939 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
940 completeWAIS, odr_dumpBER.
942 Fixed bug in client.c which caused a crash when a scanResponse didn't
943 contain positionOfTerm.
945 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
946 * will cause an error in a client if a non-YAZ target sends both a
947 * list of Scan entries and non-surrogate diagnostics.
949 Retrieval module enhancements. Tag sets may be typed in the reference
950 to it. From the .abs-file the "tagset" directive takes a third optional
951 integer type for the tag set referenced. From a .tag-file the "include"
952 directive takes a third optional type as well. The old "type" directive
953 in the tag set itself is still recognized but acts as the default type
956 Backend interface change. Individual Scan terms returned from bend_scan
957 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
958 in include/backend.h.
960 Retrieval module enhancements. Multiple tag sets and attribute sets may
961 be specified in abstract syntax specs. Revised the error/warning for
962 logging messages reported by the retrieval module when reading the
965 Object Identifier system (oid_..) changed. The API is backwards
966 compatible but the oid-routines now allocates new OID's when needed.
967 Raw OID's may be specified in oid_getvalbyname.
969 YAZ now uses GNU configure to generate Makefile(s).
971 * Minor changes in some of the member names of DeleteResultSetRequest and
972 DeleteResultSetResponse. See include/proto.h.
974 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
975 and added member 'languages' in TargetInfo (which was missing).
977 Changed the way attribute sets are handled in the retrieval
978 module. These are now cached, just like the abstract syntaxes
981 Changed YAZ so that it links with compiled ASN.1.
983 Added Explain-schema definitions and mapping routines. The following
984 Explain categories have been implemented: AttributeDetails,
985 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
987 Fixed minor bug in Windows version of Server Library.
989 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
991 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
993 Added EXTERNAL: UNIverse Resource Report (non-standard).
995 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
996 ENUMERATED and SET OF.
998 * Added 'const' to some of the char pointer arguments for the
999 functions, data1_read_node, data1_getelementbytagname,
1000 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
1003 Fixed bug in data1_insert_taggeddata - the last_child member of
1004 parent wasn't initialised.
1006 * Changed data1_read_record and data1_read_node so that the supplied
1007 "SGML"-buffer is read-only. In particular the resulting data1 - tree
1008 doesn't refer to any parts of the "SGML"-buffer.
1010 Fixed bug in server library (Windows version of statserv_remove).
1012 * Changed code so that it compiles as C++. The type definition
1013 of Odr_fun which is a member of Odr_arm was changed. The result is,
1014 that an explicit typecast is needed for the fun pointer when
1015 using Odr_arm - as in:
1016 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
1018 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
1020 Implemented the new structured date and time definition as approved
1021 by the ZIG. Added schemaId element to the specificTag in Espec-1
1022 (also approved at the last ZIG). Thanks to RVDM.
1024 Added some Object identifiers (RVDM).
1026 Changed the Update Extended Service (RVDM).
1028 Added command "refid" to client which specifies referenceId for
1029 the following requests.
1031 Implemented extended service handling for server. See ztest.c
1032 for an example as well as backend.h. New handlers are registerd
1033 in the Init handler.
1035 * Changed interface for sort in server.
1037 Added new members to statserv_options_block. It allows a server
1038 to read options from another source than just the command line. Thanks
1039 to Charles Woodfield.
1041 * Changed definition of Z_Triple in file prt-grs.h - member boolean
1042 renamed to zboolean. Some C++ compilers complained about the name.
1044 Minor changes to gils.abs. Added index 's' (sort) on title
1045 and date/time-last-modified.
1047 --- 1.4pl2 1998/1/30
1049 Fixed bug in server library regarding inetd mode (-i). This bug
1050 was introduced by release 1.4.
1052 --- 1.4pl1 1998/1/29
1054 Added sort facility in client and backend server interface.
1056 Fixed problem with dependencies in Makefile(s).
1058 Fixed bugs for encoders/decoders of extended services and
1061 Implemented sub-tree feature for schemas. Sub-trees are
1062 referenced in *.abs-files. See explain.abs for an example
1063 of the use of this feature.
1065 Modified bib1.att; local attributes for ANY didn't include
1066 ANY itself (only affects use of the retrieval module).
1068 Fixed bug in plain SGML reader in function data1_read_node:
1069 tags with prefix "var" was incorrectly interpreted as variants.
1071 Added feature "sub-schemas" to enable references to - and definitions
1072 of - group of elements.
1074 * Removed member parent from type data1_element (in data1.h).
1076 Implemented function odr_nullval() that returns the value of
1079 * Removed member num_children from data1_node (in data1.h).
1081 Made NT service interface part of the server library. The
1082 function statserv_main uses the NT service when required and
1083 calls the statserv_start / statserv_close routines.
1085 Routine zget_SearchRequest and zget_PresentRequest fills
1086 resultSetName/Id member with "default" instead of "Default".
1088 Fixed memory leak in server. Request queue member wasn't freed.
1090 Fixed nmem_exit so that memory is freed.
1094 Revised the CCL parser utility to be thread safe.
1096 Added function, oid_ent_to_oid, to replace the function
1097 oid_getoidbyent, which is not thread safe.
1099 * Added nmem_init and nmem_exit to initialize and release
1100 NMEM resources. Function nmem_init should be called once in the
1101 initial thread before NMEM/ODR is used. statserv.c and client.c
1102 have been changed accordingly. The change was necessary to make
1103 NMEM thread safe. The NMEM memory pool is shared amongst threads
1104 in a process. Unix-based applications will still work fine without
1107 Added NT Services interface for the the Z39.50 (statserv) Server.
1108 Refer to the ztest.c source on the usage.
1110 Windows 95/NT port using MSVC5.0. Project files are included in the
1113 * Defined new 'global' handle for the retrieval (data1) system. The
1114 new handled, data1_handle, describes the state of the data1 system.
1115 This handle is passed as first argument to virtually all
1116 data1 related routines. The functions data1_create and data1_destroy
1117 creates and destroys a data1 handle respectively.
1119 Added ODR encode stream member to all backend request structures
1120 init, search, scan etc. This stream should be used to allocate all
1121 memory used for the response when thread safe operation is needed.
1123 Changed the comstack utility, cs_addstr, to be thread safe. The
1124 returned hostname string returned by the function is now part the
1127 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
1128 function. The cs_straddr takes a COMSTACK handle as argument, so this
1129 function must be used after cs_create and before bind/connect.
1130 This function is thread safe.
1132 Moved test server to 'ztest' directory - generic server code still
1133 in 'server' directory.
1135 Made prefix query (pquery.c) utility thread safe.
1137 Added new function modifier YAZ_EXPORT to 'export' public DLL
1138 functions when using windows (see include/yconfig.h).
1140 Added definitions to the OID database (util/oid.c) (RVDM).
1142 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
1144 Added call to ccl_rpn_delete in client program.
1146 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
1147 release of RPN structure.
1149 Added support for C++, headers uses extern "C" for public definitions.
1150 With input from RVDM.
1152 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
1153 Thanks to Ronald van der Meer (RVDM).
1155 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
1157 Added support for private extensions to the OID database
1158 (oid_setprivateoids()). Thanks to RVDM.
1160 Added optional, physical ANY (key replication)
1162 Fixed null-reference problem in GRS-1 output filter.
1164 Proximity operator added to Prefix Query Format (PQF).
1166 In test client command "base" accepts multiple databases.
1168 Fixed bug in cs_close stack that caused trouble with WINSOCK.
1172 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1174 Smallish bug-fixes in the new encoders/decoders (explain).
1176 Bug fixed in DeleteRequest.
1178 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
1180 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1182 Added SOIF syntax (using private OID for now) to retrieval module and client.
1184 Added Update extended service.
1186 Added SearchResult-1 additional info structure.
1188 Added optional CCL (ISO8777) interpreter as separate module. Available
1191 --- 1.2 1996/6/10 (1st anniversary release)
1193 Added Summary record syntax. Lightly tested.
1195 Added OPAC record syntax. Untested.
1197 Added ResourceReport service encoders/decoders. Untested.
1199 Fixed bug in z_Unit - wrong tagging on unitSystem.
1201 Fixed bug in the DiagRecs decoder.
1203 Added options for max PDU size and session timeout to frontend-server.
1205 Added documentation of query-language parsers and other supporting utilities.
1207 [frontend-server] Added Attribute set to the bend_scanrequest API.
1209 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
1210 surrogate diagnostics were generated.
1212 [retrieval] Allow multiple local values for attribute.
1214 [retrieval] Allow multiple attributes per element in .abs files. index type.
1216 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
1218 --- 1.1pl2 1996/4/10
1220 Minor changes, mostly specific to Zebra's requirements (retrieval)
1224 Repaired bug in frontend server when running multiple listening
1225 endpoints in dynamic mode.
1227 z_External() now won't break if a known, ASN.1 value comes encapsulated
1228 in an octet-string. The value will pass through unmodified in an Odr_oct.
1230 Added a bit of code to the demo client to decode & display
1231 ASN.1-structured records represented in the octet-aligned branch of
1232 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
1234 Added z_ext_getentbyref() to the ASN module. Doc updated.
1236 * Completed the SCAN definition in the ASN module. This may break SCAN
1237 code based on older YAZ-versions at compile-time. The fix is easy -
1240 * Added 'displayTerm' and OtherInformation to the TermInfo structure
1241 under the SCAN definition. Remember to initialize this, server-people.
1243 Comstack should now support the WAIS protocol in TCP/IP mode. Note
1244 that this does not extend to ODR and ASN.
1246 Comstack allows insertion of established socket (primarily for
1247 inetd-operation of servers). Doc updated.
1249 Front-end server can now start from the inetd in TCP mode. Doc
1252 --- 1.0pl4 1996/1/24
1256 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
1257 the rank and record number.
1259 Adjustments to the frontend server.
1261 Fixed diagnostic BER dumper. It ignored the file argument.
1265 Various changes to retrieval module.
1267 Changed the union discriminators of the protocol files from enums to
1268 ints paired with #defines.
1270 *Changed oident.class to oident.oclass to avoid a reserved word in C++
1273 *Changed operator in the RPN structure to 'roperator', again to avoid a
1276 Fixed problems in Explain decoders/encoders.
1278 --- 1.0pl2 1995/12/6
1280 Memory bug in log module fixed.
1282 --- 1.0pl1 1995/12/5
1284 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1286 Bug in Explain DatabaseInfo module fixed.
1288 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1292 The shift to v1.0 signals that we now consider the *core* functionality
1293 of YAZ reasonably stable (the core being more or less equivalent to
1294 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1295 tested (Explain not at all - though that will happen soonish).
1297 Minor changes to code to support Windows port.
1299 Various minor changes after we're getting to use GRS-1 & co. more.
1301 Added Espec-1 format.
1303 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1304 of the protocol and it cannot be selected when encoding (maps into 'string'
1305 when decoding). Needed to talk to some servers.
1307 Demo client can request simple element set names.
1309 Added Diagnostic Format encoders/decoders.
1311 Added simple Close handling to frontend server (no hooks for resource
1312 reporting yet), and demonstration client.
1314 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1316 --- 1.0b3 1995/08/24
1318 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1319 handled incorrectly when records were requested in the searchResponse. This
1320 will only affect you if you use the frontend-server.
1322 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1323 Test-client will ask for and print GRS1. Ztest will return dummy records
1326 Added Explain encoders/decoders to the service-level API. Untested.
1328 Added Extended Services: Item Order encoders and decoders to the Service-
1329 level API. Untested. We could use a recent copy of the pertinent bits
1330 of the ILL protocol to add those bits.
1332 Added diagnostic format 1 encoders/decoders to the service-level API.
1335 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1336 odr_cons.c, which causes a more correct output.
1338 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1339 was always set to 0 when no records were requested in the searchRequest.
1341 * Added better external-handling. This shouldn't harm old code that
1342 *encodes* externals. It can break code that looks for a
1343 'single-ASN1-type' representation, since those types that are known
1344 are now decoded immediately. Look at the SUTRS sample code in
1345 seshigh.c and client.c. Documentation updated.
1347 Handling of structured records in bend_fetchresponse. Length -1 marks
1348 structured record, type is deduced from format field.
1350 --- 1.0b2 1995/06/27
1351 Fairly quick maintenance release to add SUTRS support.
1353 Fixed handling of SUTRS records in the demonstration client.
1355 * Added format field to the bend_fetchrequest and bend_fetchresponce
1356 structures of the backend API (frontend server). When the record is
1357 returned, the value of the format field is mapped to an OID. The
1358 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1359 of the record. The special value VAL_NONE in the bend_request means
1360 that no specific format was requested by the client. Documentation
1361 updated accordingly. Test server (ztest) will return a fixed dummy
1362 SUTRS record if your client requests SUTRS.
1364 Documentation updated accordingly.
1366 You can now set external libraries and RANLIB support in the top-level
1370 First public release.