1 Possible compatibility problems with earlier versions marked with '*'.
3 Add support for more "commit changes" in ZOOM (uses Extended Services).
5 For yaz-client, command set_marcdump <file> / -m <file> dumps SUTRS/XML/..
8 Yet another small fix for configure of SSL.
12 Fix SSL libs for configure when --with-openssl=DIR is given.
16 Add autoconf m4 macro YAZ_DOC for YAZ documentation setup (docbook).
18 SSL comstack now uses yaz.pem certificate file on server side
19 by default. Certificate filename can be configured by calling
20 comstack function cs_set_ssl_certificate_file before cs_bind is used.
22 Fix bug regarding multiple calls to ZOOM_connection_connect.
24 Implement cs_set_ssl_ctx which sets SSL_CTX for SSL comstack.
26 Do not create SSL_CTX in cs_create (ssl_type). Create in tcpip_bind,
27 tcpip_rcvconnect instead. This allows user to set custom SSL_CTX.
29 ZOOM now allows inspection of X509 peer certificate for verification.
30 The X509 buffer is retrived by reading ZOOM option "sslPeerCert".
32 Removed libyazssl.la. When SSL is enabled, libyaz.la has SSL support and
33 all programs have too (yaz-ztest, yaz-client, zoom..). May not be
34 as "modular" but it simplifies things.
36 Added cs_get_peer_certificate to that returns peer X509 PEM.
38 Added cs_get_ssl that returns SSL handle (SSL *) for SSL comstack; returns
39 NULL if SSL is unavailable.
41 Documentation about MARC decoding tools.
43 Fix --disable-tcpd to really disable tcpd. Patch by Robin H. Johnson.
47 Rename CHANGELOG to NEWS to follow GNU style packing.
49 Fix bug with missing initialization of member in init_diagnostics.
50 This bug affects threaded version of GFS server.
54 Use wrbuf_xmlputs_n instead of wrbuf_write_cdata to avoid clash with
57 Ensure zlib.dll is packed with Windows install.
61 Fix encoding of xsd:string to use text instead of CDATA.
63 Fix endless loop in CQL parser with unbalanced ".
65 Use a more compact way to store MARC-8 conversion tables.
67 --- 2.0.16 2004/03/16 Debian only
69 Oleg Kolobov Fixed a bug in yaz_iconv regarding conversion to
72 Update CQL parser to use new CQL 1.1 modifiers for booleans and
79 Another fix for decoding of XML packed records.
83 Fixes for Chunked encoding. White space not ignored after length spec.
85 Update NS and use default NS for SRW diagnostic elements.
89 Implement ZOOM_resultset_cache_reset which resets record cache.
91 Implement ZOOM_resultset_sort which sorts a result set.
93 Implement chunked HTTP transfer.
95 For SSL, use -lssl -lcrypto on systems that don't have pkg-config.
99 Added member 'schema' to bend_explain_rr structure so that backend
100 can specify explain record identifier. Defaults to Zeerex 2.0.
102 Fix encoding of OID's of form 1.0.X. Bug introduced in 2.0.11.
104 --- 2.0.11 2004/02/16
106 * SRW/SRU 1.1 updates: updated diagnostic in srw.h to use uri instead
109 Added init command for yaz-client which sends "extra" init request.
111 Fixed two bugs in OID codec - ber_oidc. Throw error when encoding/decoding
112 bad truncated OID. Fix decoding of OID X.Y... when X=2 and Y>39.
114 Fixed a bug in ASN.1 compiler that caused Type-1 Operator codec to fail.
116 Make ZOOM error code for "invalid query".
118 Fixed compilation for SSL which wasn't properly enabled for all platforms.
120 --- 2.0.10 2004/02/05
122 For yaz.m4, allow second argument for YAZ_INIT to hold minimal version of
125 * SRW/SRU 1.1 updates. Diagnostic code now a URI.
127 Added option -p <file> to make Generic Frontend Server to write PID file.
129 Added option -D to put Generic Frontend Server in background on its own.
131 Make ZOOM C recognize option "password". If unset, "pass" is used
132 (for backwards compatibility).
134 Fixed a bug in Generic Frontend Server that could make it crash if a
135 client sets characterSetNegotation bit, but didn't pass negotiation stuff
138 New YAZ client command, zversion, that sets Z39.50 version (1,2,3..).
139 Must be issued before open, in order to be in effect.
141 --- 2.0.9-6 2004/01/12 Debian/Windows
143 Make the SRU server more picky WRT unknown params, etc.
145 Bug fix: ZOOM scan response didn't return displayTerm - when present.
147 New YAZ client command, options, that sets Z39.50 options.
149 New utility functions yaz_init_opt_{encode,decode} to encode/decode Z39.50
150 options from a string of tokens (one token for each option bit).
152 Update SRW diagnostic code messages.
154 --- 2.0.9-5 2004/01/07 Debian/Windows
156 Handle user defined stylesheet for SRW/SRU.
158 --- 2.0.9-4 2004/01/06 Debian/Windows
160 Fix bug in decoding of Content-Length.
162 --- 2.0.9-3 2004/01/06 Debian/Windows
164 Fix a bug with decoding of XML packed records.
166 --- 2.0.9-2 2004/01/05 Debian only
168 Allow empty ODR (NMEM=0) for odr_oiddup and odr_getoidbystr.
170 Fix bug in SRW/SRU diagnostics decoding.
174 Fixed bug in Generic Frontend Server which could drop records exceeding
175 preferred message size. Reported and fixed by Irina Dijour.
177 Fixed calculation of package size for structured records in Generic
178 Frontend Server. Reported and fixed by Irina Dijour.
180 Fixed namespace for SRW/SRU diagnostics.
182 Fixed SEGV in yaz-client that occured for HTTP connection errors.
186 * SRW/SRU 1.1. Since the Namespace has changed for SRW/SRU, it means that
187 this version is incompatible with version 1.0 and older YAZ SRW/SRU
190 CQL changes to reflect recent changes to the specification:
191 * Documentation talks about context sets instead of index sets.
192 * Documentation talks about indexes instead of qualifiers.
193 * The CQL-to-PQF transformer's configuration file now uses
194 "index.set.name = <attributes>" instead of the old form
195 "qualifier.set.name = <attributes>". (Both forms are still
196 understood but the latter is deprecated.)
197 * CQL terms with no explicit index specified are now interpreted as
198 cql.serverChoice instead of srw.serverChoice (which of course
199 behaves exactly the same.)
203 MARC conversion can now generate ISO2709 output in another
204 character set. yaz-marcdump uses this facility if you invoke it
207 Added missing C decl macros for include/yaz/{soap.h,srw.h,cql.h}, so that
208 functions from there can be used from C++.
212 Frontend server now transfers memory from decoded packages to stream
215 NMEM now clears freed blocks with 'Y' (hex 59) to force bad memory
216 references to show up.
218 ZOOM-C now supports standard ZOOM option names as described in v1.4 of
219 the ZOOM Abstract API. The older names for the same options are still
220 also supported for the benefit of old applications.
222 ZOOM-C supports "implementationId" and "implementationVersion" options
223 to go along with "implementationName". These allow the user code to
224 specify identification strings to be sent to servers.
225 Add OID for the new ExtLite attribute set.
227 Add OIDs for NACSIS-CATP, FINMARC2000 and MARC21-fin record-syntaxes,
228 as requested/supplid by Ere Maijala <ere@atp.fi>
230 For generic frontend server, reverse the order of
231 "toolkit-supplied / application-supplied" strings sent as implementationId,
232 Name and Version. Also, remove the spaces around the slash. This brings
233 the GFS in line with the behaviour of ZOOM-C on the client side.
235 Add function ZOOM_scanset_display_term.
237 yaz-client shows scan displayTerm if present.
239 Utility yaz-iconv is now installed by default along with the man page
242 Extend configure check for OpenSSL to use pkg-config where available (such
245 Incorporate patch by Morten Bogeskov which allows a Unix file socket
246 server to specify uid/gid/mask for socket using the format
247 unix:[user=uid,][group=gid,][umask=mask,]file=path
248 If file= is omitted the existing format is assumed, e.g.
250 in which case the mask is 0666 (rw for everybody).
252 Major restructure of YAZ source. All source in libyaz is in src directory.
253 Programs in client (yaz-client), ztest (yaz-ztest), zoom (zoom programs),
254 util (utility programs such as ASN.1 compiler, yaz-marcdump).
256 Added man page for utility yaz-marcdump (used to be called marcdump).
257 yaz-marcdump is installed by 'make install'.
259 Fixed a memory leak in Generic Frontend Server that occurred when decoding
260 of incoming package failed.
262 Fixed a potential DOS attack vulnerability in COMSTACK/ODR.
264 Change prototype of odr_perror: add const to message string.
266 New function yaz_log_reopen which reopens log file (for log rotate, etc.)
268 * Blocking parameter for COMSTACK cs_create is now a bit mask rather
269 than a blocking flag. Bit 0 is set for blocking, reset for non-blocking.
270 Bit 1 is set if cs_addrstr should avoid DNS lookup; reset for full
271 DNS lookup. There should not be any compatibility problems with this
272 assuming that blocking=1 or 0 is used.
274 Fix bad reference in UNIX comstack in function cs_addrstr.
276 Fix for compilation on AIX.
278 The generic front-end server (server/seshigh.c) now supports returning
279 Init diagnostics to the client in User-information-field, in
280 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
285 Allow any CQL relation (not just all,any,exact,scr).
287 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
288 that features the same UI.
290 Implemented command update0 in YAZ client which is equivalent to
291 update but uses old of Ext Update ASN.1.
293 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
294 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
295 Previously no OID was used for this info.
297 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
298 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
299 returns 'malformed search term' otherwise.
301 SortResponse member resultCount now set to NULL in sort handler of
304 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
307 Add three new utility functions for translating OIDs between various
308 formats -- symbolic name such as "Usmarc", minus-1-terminated int
309 arrays and dotted strings such as "1.2.840.10003.9.5.1":
310 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
311 char *oid_to_dotstring(const int *oid, char *oidbuf);
312 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
314 Reverted modifications for ES Update definition for z_IU0Update
315 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
316 is back to YAZ 2.0.2.
318 String value attributes for CCL parser.
320 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
321 which their FirstSearch server returns in Init responses, sometimes
322 carrying useful diagnostic information when Init fails. This has the
323 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
324 "z39.50/oclcui.asn", where its definition is somewhat different from
325 what OCLC document on their web-site, as required to interoperate with
328 Support for anonymous authentication in yaz-client. Use the command
331 * Fix the OID of the Index Data-local "admin" Extended Service from
332 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
333 the 1000, which indicates a locally-defined OID, was a mistake.
337 Fix CCL directive @case handling so that it affects string match for
338 both CCL keywords and qualifiers.
340 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
341 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
342 Decoder has been updated with ASN.1 changes as listed in
343 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
344 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
345 z_IUUpdate, remains unchanged.
347 ZOOM_record_get may now return a record in a specific character set.
348 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
349 "from" is the character set of record as returned by target. "to" is
350 the character set to be returned. If omitted, "to" is UTF-8.
352 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
354 New ODR utility, odr_getelement, which returns name of element for
355 which encoding/decoding failed.
357 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
358 in cases where a required element was omitted.
360 Bug fix: some MARC8 sequences were not converted.
362 New ZOOM option "step" which specifies number of records to be
363 retrieved in one chunk. Used in conjunction with "start" and "count".
365 SRW support for yaz-client. Use scheme http: to use it, e.g.
368 yaz-client no longer does (un)intelligent character set conversions
369 by default. Can be enabled with charset and marc_charset commands.
371 xmalloc trace fix for 64-bit systems such as DEC alpha.
373 Solaris 2.6 compile fix.
375 New function, cql_strerror() translates SRW error codes, as returned
376 by cql_transform_error(), into human-readable English strings. Used
377 in yaz-client diagnostics when appropriate.
379 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
380 converts it into a type-1 query which is sent to the server. This
381 makes CQL available for use with all Z-servers, as opposed to the tiny
382 minority that can handle CQL queries themselves.
386 New Debian package layout similar to the Redhat Package layout.
388 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
389 and search result respectively.
393 Redhat package is now several packages: libyaz (runtime libraries),
394 libyaz-devel (development and documentation, and yaz (utility programs).
395 Package spec file by Morten Bøgeskov.
397 New member 'schema' in struct bend_fetch_rr which the name of requested
398 schema (SRW/SRU) for record (or NULL if none was given). The fetch
399 handler MAY set this to reflect the schema of the returned record.
401 New member 'display_term' in struct scan_entry. GFS now sets member entries
402 and allocates scan entries to be filled by user scan handler. In previous
403 version, entries member was allocated by the scan handler. That still works,
404 but the GFS will ignore member display_term - assuming it was NOT set by
405 the handler. The fact that the GFS now allocates the entries both allows
406 for new members and makes a scan handler easier to write.
408 Fix CQL lex buffer overflow.
410 SRW/SRU recordPacking. For SRW default recordPacking is string. For
411 SRU default recordPacking is string.
413 SRU protocol support for frontend server.
415 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
417 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
419 Added scan for the ZOOM shell (zoomsh).
423 * String Identifers for Schemas (Amendment 5).
424 http://lcweb.loc.gov/z3950/agency/amend/am5.html
425 Old definition for schema
426 Odr_oid *schema; /* OPT */
431 Z_InternationalString *uri;
432 #define Z_Schema_oid 1
433 #define Z_Schema_uri 2
436 * resultCount parameter to Sort Response (Amendment 1).
437 http://lcweb.loc.gov/z3950/agency/amend/am1.html
439 Support for SRW 1.0 over HTTP. This is an optional feature and
440 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
443 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
444 on the same port. SRW SearchRetrieveRequests are mapped
445 to bend_init,bend_search,bend_fetch,bend_close.
447 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
449 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
450 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
452 ZOOM connections are SRW based if schem http is used for hostname
453 in connect, e.g. z = ZOOM_connection_new("http://myserver");
454 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
456 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
457 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
458 distance=n, order=true/false, relation=le, prox unit=word. If
459 n is omitted, distance 1 is used.
461 Fixed problem with C compiler include path in wrong order.
463 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
464 on Solaris. Patch from Ko van der Sloot.
466 New MARC decode API. All new functions operate on a yaz_marc_t
467 handle. The most important new functions are: yaz_marc_create,
468 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
469 decode and destroy respectively. Decoder can produce formats
470 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
471 include/yaz/marcdisp.h.
473 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
474 to UTF-8, UCS-32, wchar_t or Latin-1.
476 * Prototypes for yaz_iconv_-functions moved to separate header
477 include/yaz/yaz-iconv.h.
479 Make a few private functions 'static' in unix.c. This prevents
480 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
482 For ZOOM connection, the options targetImplementation{Id,Name,Version}
483 are set when Init Response is received.
485 New function ZOOM_connection_error_x similar to ZOOM_connection_error
486 but returns diagnostic set as well.
488 New function yaz_strerror which is a portable wrapper for
489 strerror/strerror_r/GetLastMessage.
491 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
492 is returned for MARC. If type is "oai", then OAI MARC is returned.
494 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
499 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
501 Fix bad race conditions on SIGTERM and terminate gracefully in
504 Move retrieval (data1) module to Zebra since nobody seems to be
507 Add GRS-1 render for ZOOM using same format as yaz-client.
511 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
513 Fix broken ESpec handling in data1 module.
515 SGML reader parses comments and makes them part of the data1 tree.
517 Added several type casts so that YAZ compiles as C++ code.
519 ZOOM didn't handle PDU encoding failures properly.
521 Added more Bib-1 diagnostics (approved extensions).
523 GNU configure: better check for iconv.
525 More portable use of accept, getpeername. Check for socklen_t. Use
526 int/size_t if socklen_t is not defined.
530 PQF parser rejects bad queries - including those with extra
531 characters in them. PQF parser used to silently ignore that.
532 Cleaner API for PQF added, which allows you to get detailed
533 error information for bad queries (see yaz/pquery.h).
535 Fixed bug in ZOOM_record_get for type "database".
537 Implemented mini iconv library supporting conversions between
538 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
540 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
544 Fixed ZOOM C record cache so that preferredRecordSyntax and
545 elementSetName is used to check for already fetched records.
549 Added three members in bend_initrequest structure to facilitate
550 character set negotiation.
552 Fixed a bug in frontend server that could cause indefinite
553 loops under rare conditions.
555 Revised character set utilities (charneg.h) so that encoding
556 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
558 For PQF, directive @term <type> sets term type for Scan/Search.
559 Here <type> is general, string, numeric, null. The term type
560 is inherited - just like @attr.
562 New call odr_set_charset that sets character set conversion for
563 international-strings on a ODR stream. Prototype is:
564 int odr_set_charset(ODR o, const char *to, const char *from);
565 The InternationalString is still represented as C string in YAZ
566 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
567 won't). On the protocol level, you can use any encoding.
569 Support for UNIX sockets in ZOOM.
571 Solaris recv sometimes returns errno == ENOENT. It is treated as
572 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
574 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
575 both client and server. Code by Morten Bøgeskov.
579 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
580 that they can be used directly from Visual Basic. You must recompile
581 your windows APP if you're using ZOOM.
583 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
584 Commands "lang" and "charset" sets language and character set respectively.
585 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
586 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
588 Attributes from multiple CCL fields may be OR'ed rather than merged
589 using directive "@field or". Fields are still merged by default -
590 equivalent to "@field merge".
592 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
595 Fixed bug in zget for parameter ExtendedServicesResponse.
601 Added PQF feature: '@attr type=value' may be written as '@type=value'.
603 Client displays USR.1:SearchResult-1 (hits per term).
605 Additional Search Info for search in Generic Frontend Server.
607 Fixed CCL parsing of "field=s".
609 WIN32 installer - using the excellent NSIS software from nullsoft.
611 Fixed CCL parsing of "field = - <number>".
613 Added function yaz_marc_decode that decodes MARC for line mode
614 display or XML (similar to that used by JZKit).
616 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
617 Z39.50. But ISO/ILL was, however.
619 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
620 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
622 http://lcweb.loc.gov/z3950/agency/amend/am2.html
623 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
627 New YAZ client features: Command completion and new commands:
628 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
629 Code provided by Jacob Poulsen.
631 New call oid_trav, that visits all registered OIDs via callback.
633 Function ZOOM_record_get now returns const char pointer rather than
634 void pointer. It saves a lot of type casts.
636 For YAZ client, command "auth" now allows you to set authentication
637 in IdPass style. It is enabled when three tokens are given - order
638 is user, group and password.
640 Fix memory leaks in MARC record handling for ZOOM.
642 New option for YAZ client, -k <kilobytes> that sets
643 maximum record size. Similar to -k option for generic frontend
644 server and yaz-ztest.
646 More fixes for scan. Non-zero stepSize handled. OID's fixes.
648 Prefix query parser reports "fail" when bad attribute set is given.
650 Fix in MARC decoder. Proximity logging. Fix for attribute set
651 in scan handler for server. Patches by Shigeru Ishida.
653 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
656 Configure option --with-openssl=<dir> now works when a directory is
657 specified. Patch provided by Morten Bøgeskov.
659 New option for YAZ client, -u <auth>, that sets authentication.
661 ZOOM fix: error information was sometimes "missing", since error
662 was cleared/reset too when it shouldn't.
664 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
668 Scan for ZOOM API. New object ZOOM_scanset. New functions
669 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
670 ZOOM_scanset_destroy.
672 New ZOOM function, ZOOM_connection_last_event, that returns type
673 of last event (such as "receive data", "send data", "apdu received",
676 New ZOOM option, schema, that specifies schema for retrieval.
678 New CCL feature. Qualifiers can be aliases for one or more
679 other qualifiers (if more than one is given, OR is used).
681 ZOOM uses named result sets if target supports it.
683 Two new YAZ client commands: . (dot, which sources a script of YAZ
684 client commands), and ! (to execute shell command.). Implemented
687 Working on Debian packages.
691 YAZ client enables named result sets only if target supports it.
693 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
695 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
696 with key="host" to get same result.
698 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
699 Function Z3950_resultset_record(s) returns references to records
700 "owned" by resultset. To become owner use Z3950_record_clone.
702 Function z_ext_record handles Extended Services. Thanks to
707 CCL Parser fix: ignore token comma when dealing with and-lists.
709 Documentation updates for COMSTACK.
711 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
712 Changed prototype Z3950_records. For some functions, int parameters
713 were changed to size_t.
715 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
718 New MARC decode/display function, marc_display_exl, which properly rejects
719 non-ISO2709 records. YAZ client uses it.
723 Fix bug: local attribute set wasn't set correctly in PQF strings.
727 * Old Z39.50 codecs no longer supported.
729 Added ZOOM C binding. See http://zoom.z3950.org/
731 Renamed states for COMSTACKs to avoid confusion with events.
733 Implemented cs_look and proper cs_rcvconnect.
735 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
737 Configure detects POSIX threads on OpenBSD.
739 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
740 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
742 When error is returned from present handler, non-surrogate diagnostic
743 is returned in present response (and fetch handler is no longer called).
745 * Minor adjustments to pquery parser (PQF). Token characters may be
746 escaped by using backslash (C-style).
748 PQF parser allows string attribute values to be specified. For @attr,
749 non-numeric characters after the equal-sign are treated as strings
750 (e.g. @attr 9=title).
752 CCL trunction character may be defined (@truncation in file)
754 * function zget_ExtendedServicesRequest sets waitAction to
755 waitIfPossible (was wait).
757 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
760 CCL operator names may be set in field definition files (CCL_bibset).
761 See ccl/bib1 for an example.
763 Fixes in ASN.1 compiler for C++ compatibility.
765 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
766 and "op_or" to avoid conflict with C++.
768 Fixed problem with GNU readline detection on Redhat 7.0.
770 Added step-size for Scan backend handler.
772 Fixed bug that made the frontend server crash when no attribute
773 set was specified for scan.
775 Front-end server automatically switches to original working directory
776 when installed as an NT service. Previously -w had to be specified to
779 Added extended attributes for retrieval module (data1), so that data1
780 records carry d1_readXML/SGML attributes. d1_read also supports
781 null-data rules ( <tag/>)
783 On UNIX when POSIX threads are available, a separate library libyazthread
784 is created. Programmers should link with that library and the yaz library
785 when using threads. The reason for the split was that some applications
786 on Linux, such as Apache, doesn't work well when using shared objects that
789 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
790 (or any frontend server) in SSL mode by specifying ssl: followed by
791 address. Only tested on UNIX.
793 Added feature for CCL module. Virtual structure s=al or s=ol generates
794 and-list and or-list respectively instead of phrase search.
798 * Added prefix "yaz_" for the functions log_init.., log_file.. and
799 log_mask_str. This was done to avoid name conflicts with other libraries
800 (such as other PHP extensions).
802 Added raw OID member for preferred record syntax (request_format_raw)
803 and returned record syntax (output_format_raw) for backend fetch method.
805 Config file yaz-config now accepts options so that it returns specific
806 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
808 Shared library support for UNIX using GNU libtool.
810 * Modified backend interface. Request/Response struct's replaced by
811 one read/write C struct. For example bend_fetchrequest and
812 bend_fetchresult have been replaced by single bend_fetch_rr struct.
813 Every handler - even search has to be registered in bend_init
814 handler. This means that the YAZ library no longer refers to
815 external functions and it makes it possible to make the whole
816 thing a single DLL/SO.
818 Added Segment handler for backend server.
820 Added Zmbol/Zebra administrative functions to YAZ client.
822 Threaded frontend server on UNIX (when POSIX Threads are available).
823 Starting the server with option -T enables multi-threading.
827 Added configure option --enable-comp/disable-comp to control use
828 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
829 located in sub directory asn.
831 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
832 in ${exec_prefix}/bin along with the other programs yaz-client and
835 GNU automake used to maintain makefiles.
839 Changed retrieval module so that we can load records with no abstract
840 syntax defined. Tagpaths in these records are fully composed of string
843 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
847 On UNIX, the generated makefile now supports a proper 'make install'.
848 The prefix can be set via GNU configure to set the install location
849 (default is /usr/local).
851 * YAZ programs client and ztest were renamed to yaz-client and
852 yaz-ztest to avoid conflicts when users install YAZ in "standard"
853 locations, such as /usr/bin,/usr/local/bin,etc.
855 * YAZ Header files were moved from include to include/yaz. YAZ Header
856 files are referred to as include <yaz/log.h> rather than <log.h>.
857 The YAZ include path (-I ..) is therefore the same as before. Programmers
858 should update their #include statements or use -Ipath/include/yaz
859 instead. The main motivation for doing this change is that YAZ header files
860 can be installed in "standard" locations /usr/include,/usr/local/include
861 without introducing conflicts, since ALL YAZ header files are stored
862 in subdirectory yaz (under /usr/include for example).
864 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
865 rather than project/workspace files. We switched because project files
866 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
869 Changed name of logging function, logf, to yaz_log, to prevent name
870 clash with some math-log functions. The YAZ header log.h defines logf
871 to yaz_log (#define) so there should be no incompatibilities by this
874 Added bend_start/bend_stop handlers for server. These handler are
875 called on start/stop of server. For windows they are called whenever
876 a service is started/stopped.
878 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
879 a fairly small ASN.1 compiler written in Tcl. The compiler is located
880 in util/yc.tcl. The auto-generated C code structures are, in a few
881 cases, incompatible with the old decoders. There are differences in the
882 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
883 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
884 The preprocessor variable ASN_COMPILED is defined when the compiled
885 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
886 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
887 wish to use the old encoders/decoders you can specify --disable-yc
890 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
891 version so that it supports both new - and old version of DB Update
893 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
894 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
895 change. The name parameter can be set to 0 in which no name is specified
896 for the construction. The macros odr_implicit and odr_explicit sets name
897 parameter to zero for the construction involved. New macros
898 odr_implicit_tag and odr_explicit_tag are similar to the others,
899 except that a name parameter is added. For programmers' that don't use
900 ODR they probably only need to change the call to z_APDU and z_External.
902 Added access control facility by interfacing the TCP wrapper library.
903 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
904 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
905 name of the daemon and enables the access control as specified in
906 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
908 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
909 den Dool <H.M.vdnDool@kub.nl>.
911 Added reference ID parameter to most functions in server API - refer
912 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
914 Changed name of ccl library to libccl.a (was ccl.a).
916 Fixed bug in decoder for Explain (Category TargetInfo).
918 Added support for GNU readline in client. Thanks to Jacob Poulsen
919 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
921 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
922 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
923 IMPLEMENTATION! This change was made to the development version before
924 the ZIG decided to retract the amendment. If any users MUST be
925 compatible with the original Update definition, PLEASE CONTACT US, and
926 we will include a separate definition corresponding to the old Update
927 ES. Note that because of the change to the ASN.1 of the
928 TaskPackageRecordStructure we cannot define a single structure that
929 will support both versions.
931 * Added const modifier to buffer parameter for some ODR/BER encoding
932 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
933 completeWAIS, odr_dumpBER.
935 Fixed bug in client.c which caused a crash when a scanResponse didn't
936 contain positionOfTerm.
938 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
939 * will cause an error in a client if a non-YAZ target sends both a
940 * list of Scan entries and non-surrogate diagnostics.
942 Retrieval module enhancements. Tag sets may be typed in the reference
943 to it. From the .abs-file the "tagset" directive takes a third optional
944 integer type for the tag set referenced. From a .tag-file the "include"
945 directive takes a third optional type as well. The old "type" directive
946 in the tag set itself is still recognized but acts as the default type
949 Backend interface change. Individual Scan terms returned from bend_scan
950 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
951 in include/backend.h.
953 Retrieval module enhancements. Multiple tag sets and attribute sets may
954 be specified in abstract syntax specs. Revised the error/warning for
955 logging messages reported by the retrieval module when reading the
958 Object Identifier system (oid_..) changed. The API is backwards
959 compatible but the oid-routines now allocates new OID's when needed.
960 Raw OID's may be specified in oid_getvalbyname.
962 YAZ now uses GNU configure to generate Makefile(s).
964 * Minor changes in some of the member names of DeleteResultSetRequest and
965 DeleteResultSetResponse. See include/proto.h.
967 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
968 and added member 'languages' in TargetInfo (which was missing).
970 Changed the way attribute sets are handled in the retrieval
971 module. These are now cached, just like the abstract syntaxes
974 Changed YAZ so that it links with compiled ASN.1.
976 Added Explain-schema definitions and mapping routines. The following
977 Explain categories have been implemented: AttributeDetails,
978 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
980 Fixed minor bug in Windows version of Server Library.
982 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
984 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
986 Added EXTERNAL: UNIverse Resource Report (non-standard).
988 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
989 ENUMERATED and SET OF.
991 * Added 'const' to some of the char pointer arguments for the
992 functions, data1_read_node, data1_getelementbytagname,
993 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
996 Fixed bug in data1_insert_taggeddata - the last_child member of
997 parent wasn't initialised.
999 * Changed data1_read_record and data1_read_node so that the supplied
1000 "SGML"-buffer is read-only. In particular the resulting data1 - tree
1001 doesn't refer to any parts of the "SGML"-buffer.
1003 Fixed bug in server library (Windows version of statserv_remove).
1005 * Changed code so that it compiles as C++. The type definition
1006 of Odr_fun which is a member of Odr_arm was changed. The result is,
1007 that an explicit typecast is needed for the fun pointer when
1008 using Odr_arm - as in:
1009 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
1011 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
1013 Implemented the new structured date and time definition as approved
1014 by the ZIG. Added schemaId element to the specificTag in Espec-1
1015 (also approved at the last ZIG). Thanks to RVDM.
1017 Added some Object identifiers (RVDM).
1019 Changed the Update Extended Service (RVDM).
1021 Added command "refid" to client which specifies referenceId for
1022 the following requests.
1024 Implemented extended service handling for server. See ztest.c
1025 for an example as well as backend.h. New handlers are registerd
1026 in the Init handler.
1028 * Changed interface for sort in server.
1030 Added new members to statserv_options_block. It allows a server
1031 to read options from another source than just the command line. Thanks
1032 to Charles Woodfield.
1034 * Changed definition of Z_Triple in file prt-grs.h - member boolean
1035 renamed to zboolean. Some C++ compilers complained about the name.
1037 Minor changes to gils.abs. Added index 's' (sort) on title
1038 and date/time-last-modified.
1040 --- 1.4pl2 1998/1/30
1042 Fixed bug in server library regarding inetd mode (-i). This bug
1043 was introduced by release 1.4.
1045 --- 1.4pl1 1998/1/29
1047 Added sort facility in client and backend server interface.
1049 Fixed problem with dependencies in Makefile(s).
1051 Fixed bugs for encoders/decoders of extended services and
1054 Implemented sub-tree feature for schemas. Sub-trees are
1055 referenced in *.abs-files. See explain.abs for an example
1056 of the use of this feature.
1058 Modified bib1.att; local attributes for ANY didn't include
1059 ANY itself (only affects use of the retrieval module).
1061 Fixed bug in plain SGML reader in function data1_read_node:
1062 tags with prefix "var" was incorrectly interpreted as variants.
1064 Added feature "sub-schemas" to enable references to - and definitions
1065 of - group of elements.
1067 * Removed member parent from type data1_element (in data1.h).
1069 Implemented function odr_nullval() that returns the value of
1072 * Removed member num_children from data1_node (in data1.h).
1074 Made NT service interface part of the server library. The
1075 function statserv_main uses the NT service when required and
1076 calls the statserv_start / statserv_close routines.
1078 Routine zget_SearchRequest and zget_PresentRequest fills
1079 resultSetName/Id member with "default" instead of "Default".
1081 Fixed memory leak in server. Request queue member wasn't freed.
1083 Fixed nmem_exit so that memory is freed.
1087 Revised the CCL parser utility to be thread safe.
1089 Added function, oid_ent_to_oid, to replace the function
1090 oid_getoidbyent, which is not thread safe.
1092 * Added nmem_init and nmem_exit to initialize and release
1093 NMEM resources. Function nmem_init should be called once in the
1094 initial thread before NMEM/ODR is used. statserv.c and client.c
1095 have been changed accordingly. The change was necessary to make
1096 NMEM thread safe. The NMEM memory pool is shared amongst threads
1097 in a process. Unix-based applications will still work fine without
1100 Added NT Services interface for the the Z39.50 (statserv) Server.
1101 Refer to the ztest.c source on the usage.
1103 Windows 95/NT port using MSVC5.0. Project files are included in the
1106 * Defined new 'global' handle for the retrieval (data1) system. The
1107 new handled, data1_handle, describes the state of the data1 system.
1108 This handle is passed as first argument to virtually all
1109 data1 related routines. The functions data1_create and data1_destroy
1110 creates and destroys a data1 handle respectively.
1112 Added ODR encode stream member to all backend request structures
1113 init, search, scan etc. This stream should be used to allocate all
1114 memory used for the response when thread safe operation is needed.
1116 Changed the comstack utility, cs_addstr, to be thread safe. The
1117 returned hostname string returned by the function is now part the
1120 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
1121 function. The cs_straddr takes a COMSTACK handle as argument, so this
1122 function must be used after cs_create and before bind/connect.
1123 This function is thread safe.
1125 Moved test server to 'ztest' directory - generic server code still
1126 in 'server' directory.
1128 Made prefix query (pquery.c) utility thread safe.
1130 Added new function modifier YAZ_EXPORT to 'export' public DLL
1131 functions when using windows (see include/yconfig.h).
1133 Added definitions to the OID database (util/oid.c) (RVDM).
1135 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
1137 Added call to ccl_rpn_delete in client program.
1139 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
1140 release of RPN structure.
1142 Added support for C++, headers uses extern "C" for public definitions.
1143 With input from RVDM.
1145 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
1146 Thanks to Ronald van der Meer (RVDM).
1148 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
1150 Added support for private extensions to the OID database
1151 (oid_setprivateoids()). Thanks to RVDM.
1153 Added optional, physical ANY (key replication)
1155 Fixed null-reference problem in GRS-1 output filter.
1157 Proximity operator added to Prefix Query Format (PQF).
1159 In test client command "base" accepts multiple databases.
1161 Fixed bug in cs_close stack that caused trouble with WINSOCK.
1165 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1167 Smallish bug-fixes in the new encoders/decoders (explain).
1169 Bug fixed in DeleteRequest.
1171 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
1173 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1175 Added SOIF syntax (using private OID for now) to retrieval module and client.
1177 Added Update extended service.
1179 Added SearchResult-1 additional info structure.
1181 Added optional CCL (ISO8777) interpreter as separate module. Available
1184 --- 1.2 1996/6/10 (1st anniversary release)
1186 Added Summary record syntax. Lightly tested.
1188 Added OPAC record syntax. Untested.
1190 Added ResourceReport service encoders/decoders. Untested.
1192 Fixed bug in z_Unit - wrong tagging on unitSystem.
1194 Fixed bug in the DiagRecs decoder.
1196 Added options for max PDU size and session timeout to frontend-server.
1198 Added documentation of query-language parsers and other supporting utilities.
1200 [frontend-server] Added Attribute set to the bend_scanrequest API.
1202 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
1203 surrogate diagnostics were generated.
1205 [retrieval] Allow multiple local values for attribute.
1207 [retrieval] Allow multiple attributes per element in .abs files. index type.
1209 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
1211 --- 1.1pl2 1996/4/10
1213 Minor changes, mostly specific to Zebra's requirements (retrieval)
1217 Repaired bug in frontend server when running multiple listening
1218 endpoints in dynamic mode.
1220 z_External() now won't break if a known, ASN.1 value comes encapsulated
1221 in an octet-string. The value will pass through unmodified in an Odr_oct.
1223 Added a bit of code to the demo client to decode & display
1224 ASN.1-structured records represented in the octet-aligned branch of
1225 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
1227 Added z_ext_getentbyref() to the ASN module. Doc updated.
1229 * Completed the SCAN definition in the ASN module. This may break SCAN
1230 code based on older YAZ-versions at compile-time. The fix is easy -
1233 * Added 'displayTerm' and OtherInformation to the TermInfo structure
1234 under the SCAN definition. Remember to initialize this, server-people.
1236 Comstack should now support the WAIS protocol in TCP/IP mode. Note
1237 that this does not extend to ODR and ASN.
1239 Comstack allows insertion of established socket (primarily for
1240 inetd-operation of servers). Doc updated.
1242 Front-end server can now start from the inetd in TCP mode. Doc
1245 --- 1.0pl4 1996/1/24
1249 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
1250 the rank and record number.
1252 Adjustments to the frontend server.
1254 Fixed diagnostic BER dumper. It ignored the file argument.
1258 Various changes to retrieval module.
1260 Changed the union discriminators of the protocol files from enums to
1261 ints paired with #defines.
1263 *Changed oident.class to oident.oclass to avoid a reserved word in C++
1266 *Changed operator in the RPN structure to 'roperator', again to avoid a
1269 Fixed problems in Explain decoders/encoders.
1271 --- 1.0pl2 1995/12/6
1273 Memory bug in log module fixed.
1275 --- 1.0pl1 1995/12/5
1277 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1279 Bug in Explain DatabaseInfo module fixed.
1281 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1285 The shift to v1.0 signals that we now consider the *core* functionality
1286 of YAZ reasonably stable (the core being more or less equivalent to
1287 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1288 tested (Explain not at all - though that will happen soonish).
1290 Minor changes to code to support Windows port.
1292 Various minor changes after we're getting to use GRS-1 & co. more.
1294 Added Espec-1 format.
1296 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1297 of the protocol and it cannot be selected when encoding (maps into 'string'
1298 when decoding). Needed to talk to some servers.
1300 Demo client can request simple element set names.
1302 Added Diagnostic Format encoders/decoders.
1304 Added simple Close handling to frontend server (no hooks for resource
1305 reporting yet), and demonstration client.
1307 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1309 --- 1.0b3 1995/08/24
1311 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1312 handled incorrectly when records were requested in the searchResponse. This
1313 will only affect you if you use the frontend-server.
1315 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1316 Test-client will ask for and print GRS1. Ztest will return dummy records
1319 Added Explain encoders/decoders to the service-level API. Untested.
1321 Added Extended Services: Item Order encoders and decoders to the Service-
1322 level API. Untested. We could use a recent copy of the pertinent bits
1323 of the ILL protocol to add those bits.
1325 Added diagnostic format 1 encoders/decoders to the service-level API.
1328 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1329 odr_cons.c, which causes a more correct output.
1331 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1332 was always set to 0 when no records were requested in the searchRequest.
1334 * Added better external-handling. This shouldn't harm old code that
1335 *encodes* externals. It can break code that looks for a
1336 'single-ASN1-type' representation, since those types that are known
1337 are now decoded immediately. Look at the SUTRS sample code in
1338 seshigh.c and client.c. Documentation updated.
1340 Handling of structured records in bend_fetchresponse. Length -1 marks
1341 structured record, type is deduced from format field.
1343 --- 1.0b2 1995/06/27
1344 Fairly quick maintenance release to add SUTRS support.
1346 Fixed handling of SUTRS records in the demonstration client.
1348 * Added format field to the bend_fetchrequest and bend_fetchresponce
1349 structures of the backend API (frontend server). When the record is
1350 returned, the value of the format field is mapped to an OID. The
1351 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1352 of the record. The special value VAL_NONE in the bend_request means
1353 that no specific format was requested by the client. Documentation
1354 updated accordingly. Test server (ztest) will return a fixed dummy
1355 SUTRS record if your client requests SUTRS.
1357 Documentation updated accordingly.
1359 You can now set external libraries and RANLIB support in the top-level
1363 First public release.