1 Possible compatibility problems with earlier versions marked with '*'.
5 Add support for more "commit changes" in ZOOM (uses Extended Services).
7 For yaz-client, command set_marcdump <file> / -m <file> dumps SUTRS/XML/..
10 Yet another small fix for configure of SSL.
14 Fix SSL libs for configure when --with-openssl=DIR is given.
18 Add autoconf m4 macro YAZ_DOC for YAZ documentation setup (docbook).
20 SSL comstack now uses yaz.pem certificate file on server side
21 by default. Certificate filename can be configured by calling
22 comstack function cs_set_ssl_certificate_file before cs_bind is used.
24 Fix bug regarding multiple calls to ZOOM_connection_connect.
26 Implement cs_set_ssl_ctx which sets SSL_CTX for SSL comstack.
28 Do not create SSL_CTX in cs_create (ssl_type). Create in tcpip_bind,
29 tcpip_rcvconnect instead. This allows user to set custom SSL_CTX.
31 ZOOM now allows inspection of X509 peer certificate for verification.
32 The X509 buffer is retrived by reading ZOOM option "sslPeerCert".
34 Removed libyazssl.la. When SSL is enabled, libyaz.la has SSL support and
35 all programs have too (yaz-ztest, yaz-client, zoom..). May not be
36 as "modular" but it simplifies things.
38 Added cs_get_peer_certificate to that returns peer X509 PEM.
40 Added cs_get_ssl that returns SSL handle (SSL *) for SSL comstack; returns
41 NULL if SSL is unavailable.
43 Documentation about MARC decoding tools.
45 Fix --disable-tcpd to really disable tcpd. Patch by Robin H. Johnson.
49 Rename CHANGELOG to NEWS to follow GNU style packing.
51 Fix bug with missing initialization of member in init_diagnostics.
52 This bug affects threaded version of GFS server.
56 Use wrbuf_xmlputs_n instead of wrbuf_write_cdata to avoid clash with
59 Ensure zlib.dll is packed with Windows install.
63 Fix encoding of xsd:string to use text instead of CDATA.
65 Fix endless loop in CQL parser with unbalanced ".
67 Use a more compact way to store MARC-8 conversion tables.
69 --- 2.0.16 2004/03/16 Debian only
71 Oleg Kolobov Fixed a bug in yaz_iconv regarding conversion to
74 Update CQL parser to use new CQL 1.1 modifiers for booleans and
81 Another fix for decoding of XML packed records.
85 Fixes for Chunked encoding. White space not ignored after length spec.
87 Update NS and use default NS for SRW diagnostic elements.
91 Implement ZOOM_resultset_cache_reset which resets record cache.
93 Implement ZOOM_resultset_sort which sorts a result set.
95 Implement chunked HTTP transfer.
97 For SSL, use -lssl -lcrypto on systems that don't have pkg-config.
101 Added member 'schema' to bend_explain_rr structure so that backend
102 can specify explain record identifier. Defaults to Zeerex 2.0.
104 Fix encoding of OID's of form 1.0.X. Bug introduced in 2.0.11.
106 --- 2.0.11 2004/02/16
108 * SRW/SRU 1.1 updates: updated diagnostic in srw.h to use uri instead
111 Added init command for yaz-client which sends "extra" init request.
113 Fixed two bugs in OID codec - ber_oidc. Throw error when encoding/decoding
114 bad truncated OID. Fix decoding of OID X.Y... when X=2 and Y>39.
116 Fixed a bug in ASN.1 compiler that caused Type-1 Operator codec to fail.
118 Make ZOOM error code for "invalid query".
120 Fixed compilation for SSL which wasn't properly enabled for all platforms.
122 --- 2.0.10 2004/02/05
124 For yaz.m4, allow second argument for YAZ_INIT to hold minimal version of
127 * SRW/SRU 1.1 updates. Diagnostic code now a URI.
129 Added option -p <file> to make Generic Frontend Server to write PID file.
131 Added option -D to put Generic Frontend Server in background on its own.
133 Make ZOOM C recognize option "password". If unset, "pass" is used
134 (for backwards compatibility).
136 Fixed a bug in Generic Frontend Server that could make it crash if a
137 client sets characterSetNegotation bit, but didn't pass negotiation stuff
140 New YAZ client command, zversion, that sets Z39.50 version (1,2,3..).
141 Must be issued before open, in order to be in effect.
143 --- 2.0.9-6 2004/01/12 Debian/Windows
145 Make the SRU server more picky WRT unknown params, etc.
147 Bug fix: ZOOM scan response didn't return displayTerm - when present.
149 New YAZ client command, options, that sets Z39.50 options.
151 New utility functions yaz_init_opt_{encode,decode} to encode/decode Z39.50
152 options from a string of tokens (one token for each option bit).
154 Update SRW diagnostic code messages.
156 --- 2.0.9-5 2004/01/07 Debian/Windows
158 Handle user defined stylesheet for SRW/SRU.
160 --- 2.0.9-4 2004/01/06 Debian/Windows
162 Fix bug in decoding of Content-Length.
164 --- 2.0.9-3 2004/01/06 Debian/Windows
166 Fix a bug with decoding of XML packed records.
168 --- 2.0.9-2 2004/01/05 Debian only
170 Allow empty ODR (NMEM=0) for odr_oiddup and odr_getoidbystr.
172 Fix bug in SRW/SRU diagnostics decoding.
176 Fixed bug in Generic Frontend Server which could drop records exceeding
177 preferred message size. Reported and fixed by Irina Dijour.
179 Fixed calculation of package size for structured records in Generic
180 Frontend Server. Reported and fixed by Irina Dijour.
182 Fixed namespace for SRW/SRU diagnostics.
184 Fixed SEGV in yaz-client that occured for HTTP connection errors.
188 * SRW/SRU 1.1. Since the Namespace has changed for SRW/SRU, it means that
189 this version is incompatible with version 1.0 and older YAZ SRW/SRU
192 CQL changes to reflect recent changes to the specification:
193 * Documentation talks about context sets instead of index sets.
194 * Documentation talks about indexes instead of qualifiers.
195 * The CQL-to-PQF transformer's configuration file now uses
196 "index.set.name = <attributes>" instead of the old form
197 "qualifier.set.name = <attributes>". (Both forms are still
198 understood but the latter is deprecated.)
199 * CQL terms with no explicit index specified are now interpreted as
200 cql.serverChoice instead of srw.serverChoice (which of course
201 behaves exactly the same.)
205 MARC conversion can now generate ISO2709 output in another
206 character set. yaz-marcdump uses this facility if you invoke it
209 Added missing C decl macros for include/yaz/{soap.h,srw.h,cql.h}, so that
210 functions from there can be used from C++.
214 Frontend server now transfers memory from decoded packages to stream
217 NMEM now clears freed blocks with 'Y' (hex 59) to force bad memory
218 references to show up.
220 ZOOM-C now supports standard ZOOM option names as described in v1.4 of
221 the ZOOM Abstract API. The older names for the same options are still
222 also supported for the benefit of old applications.
224 ZOOM-C supports "implementationId" and "implementationVersion" options
225 to go along with "implementationName". These allow the user code to
226 specify identification strings to be sent to servers.
227 Add OID for the new ExtLite attribute set.
229 Add OIDs for NACSIS-CATP, FINMARC2000 and MARC21-fin record-syntaxes,
230 as requested/supplid by Ere Maijala <ere@atp.fi>
232 For generic frontend server, reverse the order of
233 "toolkit-supplied / application-supplied" strings sent as implementationId,
234 Name and Version. Also, remove the spaces around the slash. This brings
235 the GFS in line with the behaviour of ZOOM-C on the client side.
237 Add function ZOOM_scanset_display_term.
239 yaz-client shows scan displayTerm if present.
241 Utility yaz-iconv is now installed by default along with the man page
244 Extend configure check for OpenSSL to use pkg-config where available (such
247 Incorporate patch by Morten Bogeskov which allows a Unix file socket
248 server to specify uid/gid/mask for socket using the format
249 unix:[user=uid,][group=gid,][umask=mask,]file=path
250 If file= is omitted the existing format is assumed, e.g.
252 in which case the mask is 0666 (rw for everybody).
254 Major restructure of YAZ source. All source in libyaz is in src directory.
255 Programs in client (yaz-client), ztest (yaz-ztest), zoom (zoom programs),
256 util (utility programs such as ASN.1 compiler, yaz-marcdump).
258 Added man page for utility yaz-marcdump (used to be called marcdump).
259 yaz-marcdump is installed by 'make install'.
261 Fixed a memory leak in Generic Frontend Server that occurred when decoding
262 of incoming package failed.
264 Fixed a potential DOS attack vulnerability in COMSTACK/ODR.
266 Change prototype of odr_perror: add const to message string.
268 New function yaz_log_reopen which reopens log file (for log rotate, etc.)
270 * Blocking parameter for COMSTACK cs_create is now a bit mask rather
271 than a blocking flag. Bit 0 is set for blocking, reset for non-blocking.
272 Bit 1 is set if cs_addrstr should avoid DNS lookup; reset for full
273 DNS lookup. There should not be any compatibility problems with this
274 assuming that blocking=1 or 0 is used.
276 Fix bad reference in UNIX comstack in function cs_addrstr.
278 Fix for compilation on AIX.
280 The generic front-end server (server/seshigh.c) now supports returning
281 Init diagnostics to the client in User-information-field, in
282 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
287 Allow any CQL relation (not just all,any,exact,scr).
289 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
290 that features the same UI.
292 Implemented command update0 in YAZ client which is equivalent to
293 update but uses old of Ext Update ASN.1.
295 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
296 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
297 Previously no OID was used for this info.
299 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
300 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
301 returns 'malformed search term' otherwise.
303 SortResponse member resultCount now set to NULL in sort handler of
306 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
309 Add three new utility functions for translating OIDs between various
310 formats -- symbolic name such as "Usmarc", minus-1-terminated int
311 arrays and dotted strings such as "1.2.840.10003.9.5.1":
312 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
313 char *oid_to_dotstring(const int *oid, char *oidbuf);
314 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
316 Reverted modifications for ES Update definition for z_IU0Update
317 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
318 is back to YAZ 2.0.2.
320 String value attributes for CCL parser.
322 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
323 which their FirstSearch server returns in Init responses, sometimes
324 carrying useful diagnostic information when Init fails. This has the
325 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
326 "z39.50/oclcui.asn", where its definition is somewhat different from
327 what OCLC document on their web-site, as required to interoperate with
330 Support for anonymous authentication in yaz-client. Use the command
333 * Fix the OID of the Index Data-local "admin" Extended Service from
334 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
335 the 1000, which indicates a locally-defined OID, was a mistake.
339 Fix CCL directive @case handling so that it affects string match for
340 both CCL keywords and qualifiers.
342 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
343 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
344 Decoder has been updated with ASN.1 changes as listed in
345 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
346 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
347 z_IUUpdate, remains unchanged.
349 ZOOM_record_get may now return a record in a specific character set.
350 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
351 "from" is the character set of record as returned by target. "to" is
352 the character set to be returned. If omitted, "to" is UTF-8.
354 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
356 New ODR utility, odr_getelement, which returns name of element for
357 which encoding/decoding failed.
359 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
360 in cases where a required element was omitted.
362 Bug fix: some MARC8 sequences were not converted.
364 New ZOOM option "step" which specifies number of records to be
365 retrieved in one chunk. Used in conjunction with "start" and "count".
367 SRW support for yaz-client. Use scheme http: to use it, e.g.
370 yaz-client no longer does (un)intelligent character set conversions
371 by default. Can be enabled with charset and marc_charset commands.
373 xmalloc trace fix for 64-bit systems such as DEC alpha.
375 Solaris 2.6 compile fix.
377 New function, cql_strerror() translates SRW error codes, as returned
378 by cql_transform_error(), into human-readable English strings. Used
379 in yaz-client diagnostics when appropriate.
381 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
382 converts it into a type-1 query which is sent to the server. This
383 makes CQL available for use with all Z-servers, as opposed to the tiny
384 minority that can handle CQL queries themselves.
388 New Debian package layout similar to the Redhat Package layout.
390 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
391 and search result respectively.
395 Redhat package is now several packages: libyaz (runtime libraries),
396 libyaz-devel (development and documentation, and yaz (utility programs).
397 Package spec file by Morten Bøgeskov.
399 New member 'schema' in struct bend_fetch_rr which the name of requested
400 schema (SRW/SRU) for record (or NULL if none was given). The fetch
401 handler MAY set this to reflect the schema of the returned record.
403 New member 'display_term' in struct scan_entry. GFS now sets member entries
404 and allocates scan entries to be filled by user scan handler. In previous
405 version, entries member was allocated by the scan handler. That still works,
406 but the GFS will ignore member display_term - assuming it was NOT set by
407 the handler. The fact that the GFS now allocates the entries both allows
408 for new members and makes a scan handler easier to write.
410 Fix CQL lex buffer overflow.
412 SRW/SRU recordPacking. For SRW default recordPacking is string. For
413 SRU default recordPacking is string.
415 SRU protocol support for frontend server.
417 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
419 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
421 Added scan for the ZOOM shell (zoomsh).
425 * String Identifers for Schemas (Amendment 5).
426 http://lcweb.loc.gov/z3950/agency/amend/am5.html
427 Old definition for schema
428 Odr_oid *schema; /* OPT */
433 Z_InternationalString *uri;
434 #define Z_Schema_oid 1
435 #define Z_Schema_uri 2
438 * resultCount parameter to Sort Response (Amendment 1).
439 http://lcweb.loc.gov/z3950/agency/amend/am1.html
441 Support for SRW 1.0 over HTTP. This is an optional feature and
442 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
445 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
446 on the same port. SRW SearchRetrieveRequests are mapped
447 to bend_init,bend_search,bend_fetch,bend_close.
449 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
451 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
452 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
454 ZOOM connections are SRW based if schem http is used for hostname
455 in connect, e.g. z = ZOOM_connection_new("http://myserver");
456 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
458 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
459 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
460 distance=n, order=true/false, relation=le, prox unit=word. If
461 n is omitted, distance 1 is used.
463 Fixed problem with C compiler include path in wrong order.
465 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
466 on Solaris. Patch from Ko van der Sloot.
468 New MARC decode API. All new functions operate on a yaz_marc_t
469 handle. The most important new functions are: yaz_marc_create,
470 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
471 decode and destroy respectively. Decoder can produce formats
472 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
473 include/yaz/marcdisp.h.
475 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
476 to UTF-8, UCS-32, wchar_t or Latin-1.
478 * Prototypes for yaz_iconv_-functions moved to separate header
479 include/yaz/yaz-iconv.h.
481 Make a few private functions 'static' in unix.c. This prevents
482 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
484 For ZOOM connection, the options targetImplementation{Id,Name,Version}
485 are set when Init Response is received.
487 New function ZOOM_connection_error_x similar to ZOOM_connection_error
488 but returns diagnostic set as well.
490 New function yaz_strerror which is a portable wrapper for
491 strerror/strerror_r/GetLastMessage.
493 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
494 is returned for MARC. If type is "oai", then OAI MARC is returned.
496 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
501 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
503 Fix bad race conditions on SIGTERM and terminate gracefully in
506 Move retrieval (data1) module to Zebra since nobody seems to be
509 Add GRS-1 render for ZOOM using same format as yaz-client.
513 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
515 Fix broken ESpec handling in data1 module.
517 SGML reader parses comments and makes them part of the data1 tree.
519 Added several type casts so that YAZ compiles as C++ code.
521 ZOOM didn't handle PDU encoding failures properly.
523 Added more Bib-1 diagnostics (approved extensions).
525 GNU configure: better check for iconv.
527 More portable use of accept, getpeername. Check for socklen_t. Use
528 int/size_t if socklen_t is not defined.
532 PQF parser rejects bad queries - including those with extra
533 characters in them. PQF parser used to silently ignore that.
534 Cleaner API for PQF added, which allows you to get detailed
535 error information for bad queries (see yaz/pquery.h).
537 Fixed bug in ZOOM_record_get for type "database".
539 Implemented mini iconv library supporting conversions between
540 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
542 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
546 Fixed ZOOM C record cache so that preferredRecordSyntax and
547 elementSetName is used to check for already fetched records.
551 Added three members in bend_initrequest structure to facilitate
552 character set negotiation.
554 Fixed a bug in frontend server that could cause indefinite
555 loops under rare conditions.
557 Revised character set utilities (charneg.h) so that encoding
558 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
560 For PQF, directive @term <type> sets term type for Scan/Search.
561 Here <type> is general, string, numeric, null. The term type
562 is inherited - just like @attr.
564 New call odr_set_charset that sets character set conversion for
565 international-strings on a ODR stream. Prototype is:
566 int odr_set_charset(ODR o, const char *to, const char *from);
567 The InternationalString is still represented as C string in YAZ
568 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
569 won't). On the protocol level, you can use any encoding.
571 Support for UNIX sockets in ZOOM.
573 Solaris recv sometimes returns errno == ENOENT. It is treated as
574 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
576 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
577 both client and server. Code by Morten Bøgeskov.
581 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
582 that they can be used directly from Visual Basic. You must recompile
583 your windows APP if you're using ZOOM.
585 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
586 Commands "lang" and "charset" sets language and character set respectively.
587 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
588 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
590 Attributes from multiple CCL fields may be OR'ed rather than merged
591 using directive "@field or". Fields are still merged by default -
592 equivalent to "@field merge".
594 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
597 Fixed bug in zget for parameter ExtendedServicesResponse.
603 Added PQF feature: '@attr type=value' may be written as '@type=value'.
605 Client displays USR.1:SearchResult-1 (hits per term).
607 Additional Search Info for search in Generic Frontend Server.
609 Fixed CCL parsing of "field=s".
611 WIN32 installer - using the excellent NSIS software from nullsoft.
613 Fixed CCL parsing of "field = - <number>".
615 Added function yaz_marc_decode that decodes MARC for line mode
616 display or XML (similar to that used by JZKit).
618 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
619 Z39.50. But ISO/ILL was, however.
621 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
622 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
624 http://lcweb.loc.gov/z3950/agency/amend/am2.html
625 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
629 New YAZ client features: Command completion and new commands:
630 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
631 Code provided by Jacob Poulsen.
633 New call oid_trav, that visits all registered OIDs via callback.
635 Function ZOOM_record_get now returns const char pointer rather than
636 void pointer. It saves a lot of type casts.
638 For YAZ client, command "auth" now allows you to set authentication
639 in IdPass style. It is enabled when three tokens are given - order
640 is user, group and password.
642 Fix memory leaks in MARC record handling for ZOOM.
644 New option for YAZ client, -k <kilobytes> that sets
645 maximum record size. Similar to -k option for generic frontend
646 server and yaz-ztest.
648 More fixes for scan. Non-zero stepSize handled. OID's fixes.
650 Prefix query parser reports "fail" when bad attribute set is given.
652 Fix in MARC decoder. Proximity logging. Fix for attribute set
653 in scan handler for server. Patches by Shigeru Ishida.
655 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
658 Configure option --with-openssl=<dir> now works when a directory is
659 specified. Patch provided by Morten Bøgeskov.
661 New option for YAZ client, -u <auth>, that sets authentication.
663 ZOOM fix: error information was sometimes "missing", since error
664 was cleared/reset too when it shouldn't.
666 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
670 Scan for ZOOM API. New object ZOOM_scanset. New functions
671 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
672 ZOOM_scanset_destroy.
674 New ZOOM function, ZOOM_connection_last_event, that returns type
675 of last event (such as "receive data", "send data", "apdu received",
678 New ZOOM option, schema, that specifies schema for retrieval.
680 New CCL feature. Qualifiers can be aliases for one or more
681 other qualifiers (if more than one is given, OR is used).
683 ZOOM uses named result sets if target supports it.
685 Two new YAZ client commands: . (dot, which sources a script of YAZ
686 client commands), and ! (to execute shell command.). Implemented
689 Working on Debian packages.
693 YAZ client enables named result sets only if target supports it.
695 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
697 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
698 with key="host" to get same result.
700 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
701 Function Z3950_resultset_record(s) returns references to records
702 "owned" by resultset. To become owner use Z3950_record_clone.
704 Function z_ext_record handles Extended Services. Thanks to
709 CCL Parser fix: ignore token comma when dealing with and-lists.
711 Documentation updates for COMSTACK.
713 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
714 Changed prototype Z3950_records. For some functions, int parameters
715 were changed to size_t.
717 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
720 New MARC decode/display function, marc_display_exl, which properly rejects
721 non-ISO2709 records. YAZ client uses it.
725 Fix bug: local attribute set wasn't set correctly in PQF strings.
729 * Old Z39.50 codecs no longer supported.
731 Added ZOOM C binding. See http://zoom.z3950.org/
733 Renamed states for COMSTACKs to avoid confusion with events.
735 Implemented cs_look and proper cs_rcvconnect.
737 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
739 Configure detects POSIX threads on OpenBSD.
741 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
742 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
744 When error is returned from present handler, non-surrogate diagnostic
745 is returned in present response (and fetch handler is no longer called).
747 * Minor adjustments to pquery parser (PQF). Token characters may be
748 escaped by using backslash (C-style).
750 PQF parser allows string attribute values to be specified. For @attr,
751 non-numeric characters after the equal-sign are treated as strings
752 (e.g. @attr 9=title).
754 CCL trunction character may be defined (@truncation in file)
756 * function zget_ExtendedServicesRequest sets waitAction to
757 waitIfPossible (was wait).
759 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
762 CCL operator names may be set in field definition files (CCL_bibset).
763 See ccl/bib1 for an example.
765 Fixes in ASN.1 compiler for C++ compatibility.
767 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
768 and "op_or" to avoid conflict with C++.
770 Fixed problem with GNU readline detection on Redhat 7.0.
772 Added step-size for Scan backend handler.
774 Fixed bug that made the frontend server crash when no attribute
775 set was specified for scan.
777 Front-end server automatically switches to original working directory
778 when installed as an NT service. Previously -w had to be specified to
781 Added extended attributes for retrieval module (data1), so that data1
782 records carry d1_readXML/SGML attributes. d1_read also supports
783 null-data rules ( <tag/>)
785 On UNIX when POSIX threads are available, a separate library libyazthread
786 is created. Programmers should link with that library and the yaz library
787 when using threads. The reason for the split was that some applications
788 on Linux, such as Apache, doesn't work well when using shared objects that
791 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
792 (or any frontend server) in SSL mode by specifying ssl: followed by
793 address. Only tested on UNIX.
795 Added feature for CCL module. Virtual structure s=al or s=ol generates
796 and-list and or-list respectively instead of phrase search.
800 * Added prefix "yaz_" for the functions log_init.., log_file.. and
801 log_mask_str. This was done to avoid name conflicts with other libraries
802 (such as other PHP extensions).
804 Added raw OID member for preferred record syntax (request_format_raw)
805 and returned record syntax (output_format_raw) for backend fetch method.
807 Config file yaz-config now accepts options so that it returns specific
808 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
810 Shared library support for UNIX using GNU libtool.
812 * Modified backend interface. Request/Response struct's replaced by
813 one read/write C struct. For example bend_fetchrequest and
814 bend_fetchresult have been replaced by single bend_fetch_rr struct.
815 Every handler - even search has to be registered in bend_init
816 handler. This means that the YAZ library no longer refers to
817 external functions and it makes it possible to make the whole
818 thing a single DLL/SO.
820 Added Segment handler for backend server.
822 Added Zmbol/Zebra administrative functions to YAZ client.
824 Threaded frontend server on UNIX (when POSIX Threads are available).
825 Starting the server with option -T enables multi-threading.
829 Added configure option --enable-comp/disable-comp to control use
830 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
831 located in sub directory asn.
833 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
834 in ${exec_prefix}/bin along with the other programs yaz-client and
837 GNU automake used to maintain makefiles.
841 Changed retrieval module so that we can load records with no abstract
842 syntax defined. Tagpaths in these records are fully composed of string
845 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
849 On UNIX, the generated makefile now supports a proper 'make install'.
850 The prefix can be set via GNU configure to set the install location
851 (default is /usr/local).
853 * YAZ programs client and ztest were renamed to yaz-client and
854 yaz-ztest to avoid conflicts when users install YAZ in "standard"
855 locations, such as /usr/bin,/usr/local/bin,etc.
857 * YAZ Header files were moved from include to include/yaz. YAZ Header
858 files are referred to as include <yaz/log.h> rather than <log.h>.
859 The YAZ include path (-I ..) is therefore the same as before. Programmers
860 should update their #include statements or use -Ipath/include/yaz
861 instead. The main motivation for doing this change is that YAZ header files
862 can be installed in "standard" locations /usr/include,/usr/local/include
863 without introducing conflicts, since ALL YAZ header files are stored
864 in subdirectory yaz (under /usr/include for example).
866 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
867 rather than project/workspace files. We switched because project files
868 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
871 Changed name of logging function, logf, to yaz_log, to prevent name
872 clash with some math-log functions. The YAZ header log.h defines logf
873 to yaz_log (#define) so there should be no incompatibilities by this
876 Added bend_start/bend_stop handlers for server. These handler are
877 called on start/stop of server. For windows they are called whenever
878 a service is started/stopped.
880 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
881 a fairly small ASN.1 compiler written in Tcl. The compiler is located
882 in util/yc.tcl. The auto-generated C code structures are, in a few
883 cases, incompatible with the old decoders. There are differences in the
884 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
885 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
886 The preprocessor variable ASN_COMPILED is defined when the compiled
887 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
888 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
889 wish to use the old encoders/decoders you can specify --disable-yc
892 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
893 version so that it supports both new - and old version of DB Update
895 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
896 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
897 change. The name parameter can be set to 0 in which no name is specified
898 for the construction. The macros odr_implicit and odr_explicit sets name
899 parameter to zero for the construction involved. New macros
900 odr_implicit_tag and odr_explicit_tag are similar to the others,
901 except that a name parameter is added. For programmers' that don't use
902 ODR they probably only need to change the call to z_APDU and z_External.
904 Added access control facility by interfacing the TCP wrapper library.
905 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
906 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
907 name of the daemon and enables the access control as specified in
908 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
910 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
911 den Dool <H.M.vdnDool@kub.nl>.
913 Added reference ID parameter to most functions in server API - refer
914 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
916 Changed name of ccl library to libccl.a (was ccl.a).
918 Fixed bug in decoder for Explain (Category TargetInfo).
920 Added support for GNU readline in client. Thanks to Jacob Poulsen
921 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
923 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
924 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
925 IMPLEMENTATION! This change was made to the development version before
926 the ZIG decided to retract the amendment. If any users MUST be
927 compatible with the original Update definition, PLEASE CONTACT US, and
928 we will include a separate definition corresponding to the old Update
929 ES. Note that because of the change to the ASN.1 of the
930 TaskPackageRecordStructure we cannot define a single structure that
931 will support both versions.
933 * Added const modifier to buffer parameter for some ODR/BER encoding
934 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
935 completeWAIS, odr_dumpBER.
937 Fixed bug in client.c which caused a crash when a scanResponse didn't
938 contain positionOfTerm.
940 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
941 * will cause an error in a client if a non-YAZ target sends both a
942 * list of Scan entries and non-surrogate diagnostics.
944 Retrieval module enhancements. Tag sets may be typed in the reference
945 to it. From the .abs-file the "tagset" directive takes a third optional
946 integer type for the tag set referenced. From a .tag-file the "include"
947 directive takes a third optional type as well. The old "type" directive
948 in the tag set itself is still recognized but acts as the default type
951 Backend interface change. Individual Scan terms returned from bend_scan
952 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
953 in include/backend.h.
955 Retrieval module enhancements. Multiple tag sets and attribute sets may
956 be specified in abstract syntax specs. Revised the error/warning for
957 logging messages reported by the retrieval module when reading the
960 Object Identifier system (oid_..) changed. The API is backwards
961 compatible but the oid-routines now allocates new OID's when needed.
962 Raw OID's may be specified in oid_getvalbyname.
964 YAZ now uses GNU configure to generate Makefile(s).
966 * Minor changes in some of the member names of DeleteResultSetRequest and
967 DeleteResultSetResponse. See include/proto.h.
969 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
970 and added member 'languages' in TargetInfo (which was missing).
972 Changed the way attribute sets are handled in the retrieval
973 module. These are now cached, just like the abstract syntaxes
976 Changed YAZ so that it links with compiled ASN.1.
978 Added Explain-schema definitions and mapping routines. The following
979 Explain categories have been implemented: AttributeDetails,
980 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
982 Fixed minor bug in Windows version of Server Library.
984 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
986 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
988 Added EXTERNAL: UNIverse Resource Report (non-standard).
990 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
991 ENUMERATED and SET OF.
993 * Added 'const' to some of the char pointer arguments for the
994 functions, data1_read_node, data1_getelementbytagname,
995 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
998 Fixed bug in data1_insert_taggeddata - the last_child member of
999 parent wasn't initialised.
1001 * Changed data1_read_record and data1_read_node so that the supplied
1002 "SGML"-buffer is read-only. In particular the resulting data1 - tree
1003 doesn't refer to any parts of the "SGML"-buffer.
1005 Fixed bug in server library (Windows version of statserv_remove).
1007 * Changed code so that it compiles as C++. The type definition
1008 of Odr_fun which is a member of Odr_arm was changed. The result is,
1009 that an explicit typecast is needed for the fun pointer when
1010 using Odr_arm - as in:
1011 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
1013 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
1015 Implemented the new structured date and time definition as approved
1016 by the ZIG. Added schemaId element to the specificTag in Espec-1
1017 (also approved at the last ZIG). Thanks to RVDM.
1019 Added some Object identifiers (RVDM).
1021 Changed the Update Extended Service (RVDM).
1023 Added command "refid" to client which specifies referenceId for
1024 the following requests.
1026 Implemented extended service handling for server. See ztest.c
1027 for an example as well as backend.h. New handlers are registerd
1028 in the Init handler.
1030 * Changed interface for sort in server.
1032 Added new members to statserv_options_block. It allows a server
1033 to read options from another source than just the command line. Thanks
1034 to Charles Woodfield.
1036 * Changed definition of Z_Triple in file prt-grs.h - member boolean
1037 renamed to zboolean. Some C++ compilers complained about the name.
1039 Minor changes to gils.abs. Added index 's' (sort) on title
1040 and date/time-last-modified.
1042 --- 1.4pl2 1998/1/30
1044 Fixed bug in server library regarding inetd mode (-i). This bug
1045 was introduced by release 1.4.
1047 --- 1.4pl1 1998/1/29
1049 Added sort facility in client and backend server interface.
1051 Fixed problem with dependencies in Makefile(s).
1053 Fixed bugs for encoders/decoders of extended services and
1056 Implemented sub-tree feature for schemas. Sub-trees are
1057 referenced in *.abs-files. See explain.abs for an example
1058 of the use of this feature.
1060 Modified bib1.att; local attributes for ANY didn't include
1061 ANY itself (only affects use of the retrieval module).
1063 Fixed bug in plain SGML reader in function data1_read_node:
1064 tags with prefix "var" was incorrectly interpreted as variants.
1066 Added feature "sub-schemas" to enable references to - and definitions
1067 of - group of elements.
1069 * Removed member parent from type data1_element (in data1.h).
1071 Implemented function odr_nullval() that returns the value of
1074 * Removed member num_children from data1_node (in data1.h).
1076 Made NT service interface part of the server library. The
1077 function statserv_main uses the NT service when required and
1078 calls the statserv_start / statserv_close routines.
1080 Routine zget_SearchRequest and zget_PresentRequest fills
1081 resultSetName/Id member with "default" instead of "Default".
1083 Fixed memory leak in server. Request queue member wasn't freed.
1085 Fixed nmem_exit so that memory is freed.
1089 Revised the CCL parser utility to be thread safe.
1091 Added function, oid_ent_to_oid, to replace the function
1092 oid_getoidbyent, which is not thread safe.
1094 * Added nmem_init and nmem_exit to initialize and release
1095 NMEM resources. Function nmem_init should be called once in the
1096 initial thread before NMEM/ODR is used. statserv.c and client.c
1097 have been changed accordingly. The change was necessary to make
1098 NMEM thread safe. The NMEM memory pool is shared amongst threads
1099 in a process. Unix-based applications will still work fine without
1102 Added NT Services interface for the the Z39.50 (statserv) Server.
1103 Refer to the ztest.c source on the usage.
1105 Windows 95/NT port using MSVC5.0. Project files are included in the
1108 * Defined new 'global' handle for the retrieval (data1) system. The
1109 new handled, data1_handle, describes the state of the data1 system.
1110 This handle is passed as first argument to virtually all
1111 data1 related routines. The functions data1_create and data1_destroy
1112 creates and destroys a data1 handle respectively.
1114 Added ODR encode stream member to all backend request structures
1115 init, search, scan etc. This stream should be used to allocate all
1116 memory used for the response when thread safe operation is needed.
1118 Changed the comstack utility, cs_addstr, to be thread safe. The
1119 returned hostname string returned by the function is now part the
1122 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
1123 function. The cs_straddr takes a COMSTACK handle as argument, so this
1124 function must be used after cs_create and before bind/connect.
1125 This function is thread safe.
1127 Moved test server to 'ztest' directory - generic server code still
1128 in 'server' directory.
1130 Made prefix query (pquery.c) utility thread safe.
1132 Added new function modifier YAZ_EXPORT to 'export' public DLL
1133 functions when using windows (see include/yconfig.h).
1135 Added definitions to the OID database (util/oid.c) (RVDM).
1137 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
1139 Added call to ccl_rpn_delete in client program.
1141 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
1142 release of RPN structure.
1144 Added support for C++, headers uses extern "C" for public definitions.
1145 With input from RVDM.
1147 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
1148 Thanks to Ronald van der Meer (RVDM).
1150 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
1152 Added support for private extensions to the OID database
1153 (oid_setprivateoids()). Thanks to RVDM.
1155 Added optional, physical ANY (key replication)
1157 Fixed null-reference problem in GRS-1 output filter.
1159 Proximity operator added to Prefix Query Format (PQF).
1161 In test client command "base" accepts multiple databases.
1163 Fixed bug in cs_close stack that caused trouble with WINSOCK.
1167 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1169 Smallish bug-fixes in the new encoders/decoders (explain).
1171 Bug fixed in DeleteRequest.
1173 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
1175 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1177 Added SOIF syntax (using private OID for now) to retrieval module and client.
1179 Added Update extended service.
1181 Added SearchResult-1 additional info structure.
1183 Added optional CCL (ISO8777) interpreter as separate module. Available
1186 --- 1.2 1996/6/10 (1st anniversary release)
1188 Added Summary record syntax. Lightly tested.
1190 Added OPAC record syntax. Untested.
1192 Added ResourceReport service encoders/decoders. Untested.
1194 Fixed bug in z_Unit - wrong tagging on unitSystem.
1196 Fixed bug in the DiagRecs decoder.
1198 Added options for max PDU size and session timeout to frontend-server.
1200 Added documentation of query-language parsers and other supporting utilities.
1202 [frontend-server] Added Attribute set to the bend_scanrequest API.
1204 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
1205 surrogate diagnostics were generated.
1207 [retrieval] Allow multiple local values for attribute.
1209 [retrieval] Allow multiple attributes per element in .abs files. index type.
1211 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
1213 --- 1.1pl2 1996/4/10
1215 Minor changes, mostly specific to Zebra's requirements (retrieval)
1219 Repaired bug in frontend server when running multiple listening
1220 endpoints in dynamic mode.
1222 z_External() now won't break if a known, ASN.1 value comes encapsulated
1223 in an octet-string. The value will pass through unmodified in an Odr_oct.
1225 Added a bit of code to the demo client to decode & display
1226 ASN.1-structured records represented in the octet-aligned branch of
1227 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
1229 Added z_ext_getentbyref() to the ASN module. Doc updated.
1231 * Completed the SCAN definition in the ASN module. This may break SCAN
1232 code based on older YAZ-versions at compile-time. The fix is easy -
1235 * Added 'displayTerm' and OtherInformation to the TermInfo structure
1236 under the SCAN definition. Remember to initialize this, server-people.
1238 Comstack should now support the WAIS protocol in TCP/IP mode. Note
1239 that this does not extend to ODR and ASN.
1241 Comstack allows insertion of established socket (primarily for
1242 inetd-operation of servers). Doc updated.
1244 Front-end server can now start from the inetd in TCP mode. Doc
1247 --- 1.0pl4 1996/1/24
1251 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
1252 the rank and record number.
1254 Adjustments to the frontend server.
1256 Fixed diagnostic BER dumper. It ignored the file argument.
1260 Various changes to retrieval module.
1262 Changed the union discriminators of the protocol files from enums to
1263 ints paired with #defines.
1265 *Changed oident.class to oident.oclass to avoid a reserved word in C++
1268 *Changed operator in the RPN structure to 'roperator', again to avoid a
1271 Fixed problems in Explain decoders/encoders.
1273 --- 1.0pl2 1995/12/6
1275 Memory bug in log module fixed.
1277 --- 1.0pl1 1995/12/5
1279 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1281 Bug in Explain DatabaseInfo module fixed.
1283 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1287 The shift to v1.0 signals that we now consider the *core* functionality
1288 of YAZ reasonably stable (the core being more or less equivalent to
1289 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1290 tested (Explain not at all - though that will happen soonish).
1292 Minor changes to code to support Windows port.
1294 Various minor changes after we're getting to use GRS-1 & co. more.
1296 Added Espec-1 format.
1298 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1299 of the protocol and it cannot be selected when encoding (maps into 'string'
1300 when decoding). Needed to talk to some servers.
1302 Demo client can request simple element set names.
1304 Added Diagnostic Format encoders/decoders.
1306 Added simple Close handling to frontend server (no hooks for resource
1307 reporting yet), and demonstration client.
1309 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1311 --- 1.0b3 1995/08/24
1313 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1314 handled incorrectly when records were requested in the searchResponse. This
1315 will only affect you if you use the frontend-server.
1317 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1318 Test-client will ask for and print GRS1. Ztest will return dummy records
1321 Added Explain encoders/decoders to the service-level API. Untested.
1323 Added Extended Services: Item Order encoders and decoders to the Service-
1324 level API. Untested. We could use a recent copy of the pertinent bits
1325 of the ILL protocol to add those bits.
1327 Added diagnostic format 1 encoders/decoders to the service-level API.
1330 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1331 odr_cons.c, which causes a more correct output.
1333 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1334 was always set to 0 when no records were requested in the searchRequest.
1336 * Added better external-handling. This shouldn't harm old code that
1337 *encodes* externals. It can break code that looks for a
1338 'single-ASN1-type' representation, since those types that are known
1339 are now decoded immediately. Look at the SUTRS sample code in
1340 seshigh.c and client.c. Documentation updated.
1342 Handling of structured records in bend_fetchresponse. Length -1 marks
1343 structured record, type is deduced from format field.
1345 --- 1.0b2 1995/06/27
1346 Fairly quick maintenance release to add SUTRS support.
1348 Fixed handling of SUTRS records in the demonstration client.
1350 * Added format field to the bend_fetchrequest and bend_fetchresponce
1351 structures of the backend API (frontend server). When the record is
1352 returned, the value of the format field is mapped to an OID. The
1353 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1354 of the record. The special value VAL_NONE in the bend_request means
1355 that no specific format was requested by the client. Documentation
1356 updated accordingly. Test server (ztest) will return a fixed dummy
1357 SUTRS record if your client requests SUTRS.
1359 Documentation updated accordingly.
1361 You can now set external libraries and RANLIB support in the top-level
1365 First public release.