1 Possible compatibility problems with earlier versions marked with '*'.
5 Rename CHANGELOG to NEWS to follow GNU style packing.
7 Fix bug with missing initialization of member in init_diagnostics.
8 This bug affects threaded version of GFS server.
12 Use wrbuf_xmlputs_n instead of wrbuf_write_cdata to avoid clash with
15 Ensure zlib.dll is packed with Windows install.
19 Fix encoding of xsd:string to use text instead of CDATA.
21 Fix endless loop in CQL parser with unbalanced ".
23 Use a more compact way to store MARC-8 conversion tables.
25 --- 2.0.16 2004/03/16 Debian only
27 Oleg Kolobov Fixed a bug in yaz_iconv regarding conversion to
30 Update CQL parser to use new CQL 1.1 modifiers for booleans and
37 Another fix for decoding of XML packed records.
41 Fixes for Chunked encoding. White space not ignored after length spec.
43 Update NS and use default NS for SRW diagnostic elements.
47 Implement ZOOM_resultset_cache_reset which resets record cache.
49 Implement ZOOM_resultset_sort which sorts a result set.
51 Implement chunked HTTP transfer.
53 For SSL, use -lssl -lcrypto on systems that don't have pkg-config.
57 Added member 'schema' to bend_explain_rr structure so that backend
58 can specify explain record identifier. Defaults to Zeerex 2.0.
60 Fix encoding of OID's of form 1.0.X. Bug introduced in 2.0.11.
64 * SRW/SRU 1.1 updates: updated diagnostic in srw.h to use uri instead
67 Added init command for yaz-client which sends "extra" init request.
69 Fixed two bugs in OID codec - ber_oidc. Throw error when encoding/decoding
70 bad truncated OID. Fix decoding of OID X.Y... when X=2 and Y>39.
72 Fixed a bug in ASN.1 compiler that caused Type-1 Operator codec to fail.
74 Make ZOOM error code for "invalid query".
76 Fixed compilation for SSL which wasn't properly enabled for all platforms.
80 For yaz.m4, allow second argument for YAZ_INIT to hold minimal version of
83 * SRW/SRU 1.1 updates. Diagnostic code now a URI.
85 Added option -p <file> to make Generic Frontend Server to write PID file.
87 Added option -D to put Generic Frontend Server in background on its own.
89 Make ZOOM C recognize option "password". If unset, "pass" is used
90 (for backwards compatibility).
92 Fixed a bug in Generic Frontend Server that could make it crash if a
93 client sets characterSetNegotation bit, but didn't pass negotiation stuff
96 New YAZ client command, zversion, that sets Z39.50 version (1,2,3..).
97 Must be issued before open, in order to be in effect.
99 --- 2.0.9-6 2004/01/12 Debian/Windows
101 Make the SRU server more picky WRT unknown params, etc.
103 Bug fix: ZOOM scan response didn't return displayTerm - when present.
105 New YAZ client command, options, that sets Z39.50 options.
107 New utility functions yaz_init_opt_{encode,decode} to encode/decode Z39.50
108 options from a string of tokens (one token for each option bit).
110 Update SRW diagnostic code messages.
112 --- 2.0.9-5 2004/01/07 Debian/Windows
114 Handle user defined stylesheet for SRW/SRU.
116 --- 2.0.9-4 2004/01/06 Debian/Windows
118 Fix bug in decoding of Content-Length.
120 --- 2.0.9-3 2004/01/06 Debian/Windows
122 Fix a bug with decoding of XML packed records.
124 --- 2.0.9-2 2004/01/05 Debian only
126 Allow empty ODR (NMEM=0) for odr_oiddup and odr_getoidbystr.
128 Fix bug in SRW/SRU diagnostics decoding.
132 Fixed bug in Generic Frontend Server which could drop records exceeding
133 preferred message size. Reported and fixed by Irina Dijour.
135 Fixed calculation of package size for structured records in Generic
136 Frontend Server. Reported and fixed by Irina Dijour.
138 Fixed namespace for SRW/SRU diagnostics.
140 Fixed SEGV in yaz-client that occured for HTTP connection errors.
144 * SRW/SRU 1.1. Since the Namespace has changed for SRW/SRU, it means that
145 this version is incompatible with version 1.0 and older YAZ SRW/SRU
148 CQL changes to reflect recent changes to the specification:
149 * Documentation talks about context sets instead of index sets.
150 * Documentation talks about indexes instead of qualifiers.
151 * The CQL-to-PQF transformer's configuration file now uses
152 "index.set.name = <attributes>" instead of the old form
153 "qualifier.set.name = <attributes>". (Both forms are still
154 understood but the latter is deprecated.)
155 * CQL terms with no explicit index specified are now interpreted as
156 cql.serverChoice instead of srw.serverChoice (which of course
157 behaves exactly the same.)
161 MARC conversion can now generate ISO2709 output in another
162 character set. yaz-marcdump uses this facility if you invoke it
165 Added missing C decl macros for include/yaz/{soap.h,srw.h,cql.h}, so that
166 functions from there can be used from C++.
170 Frontend server now transfers memory from decoded packages to stream
173 NMEM now clears freed blocks with 'Y' (hex 59) to force bad memory
174 references to show up.
176 ZOOM-C now supports standard ZOOM option names as described in v1.4 of
177 the ZOOM Abstract API. The older names for the same options are still
178 also supported for the benefit of old applications.
180 ZOOM-C supports "implementationId" and "implementationVersion" options
181 to go along with "implementationName". These allow the user code to
182 specify identification strings to be sent to servers.
183 Add OID for the new ExtLite attribute set.
185 Add OIDs for NACSIS-CATP, FINMARC2000 and MARC21-fin record-syntaxes,
186 as requested/supplid by Ere Maijala <ere@atp.fi>
188 For generic frontend server, reverse the order of
189 "toolkit-supplied / application-supplied" strings sent as implementationId,
190 Name and Version. Also, remove the spaces around the slash. This brings
191 the GFS in line with the behaviour of ZOOM-C on the client side.
193 Add function ZOOM_scanset_display_term.
195 yaz-client shows scan displayTerm if present.
197 Utility yaz-iconv is now installed by default along with the man page
200 Extend configure check for OpenSSL to use pkg-config where available (such
203 Incorporate patch by Morten Bogeskov which allows a Unix file socket
204 server to specify uid/gid/mask for socket using the format
205 unix:[user=uid,][group=gid,][umask=mask,]file=path
206 If file= is omitted the existing format is assumed, e.g.
208 in which case the mask is 0666 (rw for everybody).
210 Major restructure of YAZ source. All source in libyaz is in src directory.
211 Programs in client (yaz-client), ztest (yaz-ztest), zoom (zoom programs),
212 util (utility programs such as ASN.1 compiler, yaz-marcdump).
214 Added man page for utility yaz-marcdump (used to be called marcdump).
215 yaz-marcdump is installed by 'make install'.
217 Fixed a memory leak in Generic Frontend Server that occurred when decoding
218 of incoming package failed.
220 Fixed a potential DOS attack vulnerability in COMSTACK/ODR.
222 Change prototype of odr_perror: add const to message string.
224 New function yaz_log_reopen which reopens log file (for log rotate, etc.)
226 * Blocking parameter for COMSTACK cs_create is now a bit mask rather
227 than a blocking flag. Bit 0 is set for blocking, reset for non-blocking.
228 Bit 1 is set if cs_addrstr should avoid DNS lookup; reset for full
229 DNS lookup. There should not be any compatibility problems with this
230 assuming that blocking=1 or 0 is used.
232 Fix bad reference in UNIX comstack in function cs_addrstr.
234 Fix for compilation on AIX.
236 The generic front-end server (server/seshigh.c) now supports returning
237 Init diagnostics to the client in User-information-field, in
238 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
243 Allow any CQL relation (not just all,any,exact,scr).
245 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
246 that features the same UI.
248 Implemented command update0 in YAZ client which is equivalent to
249 update but uses old of Ext Update ASN.1.
251 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
252 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
253 Previously no OID was used for this info.
255 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
256 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
257 returns 'malformed search term' otherwise.
259 SortResponse member resultCount now set to NULL in sort handler of
262 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
265 Add three new utility functions for translating OIDs between various
266 formats -- symbolic name such as "Usmarc", minus-1-terminated int
267 arrays and dotted strings such as "1.2.840.10003.9.5.1":
268 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
269 char *oid_to_dotstring(const int *oid, char *oidbuf);
270 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
272 Reverted modifications for ES Update definition for z_IU0Update
273 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
274 is back to YAZ 2.0.2.
276 String value attributes for CCL parser.
278 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
279 which their FirstSearch server returns in Init responses, sometimes
280 carrying useful diagnostic information when Init fails. This has the
281 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
282 "z39.50/oclcui.asn", where its definition is somewhat different from
283 what OCLC document on their web-site, as required to interoperate with
286 Support for anonymous authentication in yaz-client. Use the command
289 * Fix the OID of the Index Data-local "admin" Extended Service from
290 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
291 the 1000, which indicates a locally-defined OID, was a mistake.
295 Fix CCL directive @case handling so that it affects string match for
296 both CCL keywords and qualifiers.
298 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
299 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
300 Decoder has been updated with ASN.1 changes as listed in
301 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
302 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
303 z_IUUpdate, remains unchanged.
305 ZOOM_record_get may now return a record in a specific character set.
306 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
307 "from" is the character set of record as returned by target. "to" is
308 the character set to be returned. If omitted, "to" is UTF-8.
310 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
312 New ODR utility, odr_getelement, which returns name of element for
313 which encoding/decoding failed.
315 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
316 in cases where a required element was omitted.
318 Bug fix: some MARC8 sequences were not converted.
320 New ZOOM option "step" which specifies number of records to be
321 retrieved in one chunk. Used in conjunction with "start" and "count".
323 SRW support for yaz-client. Use scheme http: to use it, e.g.
326 yaz-client no longer does (un)intelligent character set conversions
327 by default. Can be enabled with charset and marc_charset commands.
329 xmalloc trace fix for 64-bit systems such as DEC alpha.
331 Solaris 2.6 compile fix.
333 New function, cql_strerror() translates SRW error codes, as returned
334 by cql_transform_error(), into human-readable English strings. Used
335 in yaz-client diagnostics when appropriate.
337 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
338 converts it into a type-1 query which is sent to the server. This
339 makes CQL available for use with all Z-servers, as opposed to the tiny
340 minority that can handle CQL queries themselves.
344 New Debian package layout similar to the Redhat Package layout.
346 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
347 and search result respectively.
351 Redhat package is now several packages: libyaz (runtime libraries),
352 libyaz-devel (development and documentation, and yaz (utility programs).
353 Package spec file by Morten Bøgeskov.
355 New member 'schema' in struct bend_fetch_rr which the name of requested
356 schema (SRW/SRU) for record (or NULL if none was given). The fetch
357 handler MAY set this to reflect the schema of the returned record.
359 New member 'display_term' in struct scan_entry. GFS now sets member entries
360 and allocates scan entries to be filled by user scan handler. In previous
361 version, entries member was allocated by the scan handler. That still works,
362 but the GFS will ignore member display_term - assuming it was NOT set by
363 the handler. The fact that the GFS now allocates the entries both allows
364 for new members and makes a scan handler easier to write.
366 Fix CQL lex buffer overflow.
368 SRW/SRU recordPacking. For SRW default recordPacking is string. For
369 SRU default recordPacking is string.
371 SRU protocol support for frontend server.
373 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
375 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
377 Added scan for the ZOOM shell (zoomsh).
381 * String Identifers for Schemas (Amendment 5).
382 http://lcweb.loc.gov/z3950/agency/amend/am5.html
383 Old definition for schema
384 Odr_oid *schema; /* OPT */
389 Z_InternationalString *uri;
390 #define Z_Schema_oid 1
391 #define Z_Schema_uri 2
394 * resultCount parameter to Sort Response (Amendment 1).
395 http://lcweb.loc.gov/z3950/agency/amend/am1.html
397 Support for SRW 1.0 over HTTP. This is an optional feature and
398 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
401 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
402 on the same port. SRW SearchRetrieveRequests are mapped
403 to bend_init,bend_search,bend_fetch,bend_close.
405 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
407 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
408 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
410 ZOOM connections are SRW based if schem http is used for hostname
411 in connect, e.g. z = ZOOM_connection_new("http://myserver");
412 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
414 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
415 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
416 distance=n, order=true/false, relation=le, prox unit=word. If
417 n is omitted, distance 1 is used.
419 Fixed problem with C compiler include path in wrong order.
421 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
422 on Solaris. Patch from Ko van der Sloot.
424 New MARC decode API. All new functions operate on a yaz_marc_t
425 handle. The most important new functions are: yaz_marc_create,
426 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
427 decode and destroy respectively. Decoder can produce formats
428 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
429 include/yaz/marcdisp.h.
431 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
432 to UTF-8, UCS-32, wchar_t or Latin-1.
434 * Prototypes for yaz_iconv_-functions moved to separate header
435 include/yaz/yaz-iconv.h.
437 Make a few private functions 'static' in unix.c. This prevents
438 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
440 For ZOOM connection, the options targetImplementation{Id,Name,Version}
441 are set when Init Response is received.
443 New function ZOOM_connection_error_x similar to ZOOM_connection_error
444 but returns diagnostic set as well.
446 New function yaz_strerror which is a portable wrapper for
447 strerror/strerror_r/GetLastMessage.
449 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
450 is returned for MARC. If type is "oai", then OAI MARC is returned.
452 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
457 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
459 Fix bad race conditions on SIGTERM and terminate gracefully in
462 Move retrieval (data1) module to Zebra since nobody seems to be
465 Add GRS-1 render for ZOOM using same format as yaz-client.
469 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
471 Fix broken ESpec handling in data1 module.
473 SGML reader parses comments and makes them part of the data1 tree.
475 Added several type casts so that YAZ compiles as C++ code.
477 ZOOM didn't handle PDU encoding failures properly.
479 Added more Bib-1 diagnostics (approved extensions).
481 GNU configure: better check for iconv.
483 More portable use of accept, getpeername. Check for socklen_t. Use
484 int/size_t if socklen_t is not defined.
488 PQF parser rejects bad queries - including those with extra
489 characters in them. PQF parser used to silently ignore that.
490 Cleaner API for PQF added, which allows you to get detailed
491 error information for bad queries (see yaz/pquery.h).
493 Fixed bug in ZOOM_record_get for type "database".
495 Implemented mini iconv library supporting conversions between
496 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
498 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
502 Fixed ZOOM C record cache so that preferredRecordSyntax and
503 elementSetName is used to check for already fetched records.
507 Added three members in bend_initrequest structure to facilitate
508 character set negotiation.
510 Fixed a bug in frontend server that could cause indefinite
511 loops under rare conditions.
513 Revised character set utilities (charneg.h) so that encoding
514 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
516 For PQF, directive @term <type> sets term type for Scan/Search.
517 Here <type> is general, string, numeric, null. The term type
518 is inherited - just like @attr.
520 New call odr_set_charset that sets character set conversion for
521 international-strings on a ODR stream. Prototype is:
522 int odr_set_charset(ODR o, const char *to, const char *from);
523 The InternationalString is still represented as C string in YAZ
524 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
525 won't). On the protocol level, you can use any encoding.
527 Support for UNIX sockets in ZOOM.
529 Solaris recv sometimes returns errno == ENOENT. It is treated as
530 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
532 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
533 both client and server. Code by Morten Bøgeskov.
537 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
538 that they can be used directly from Visual Basic. You must recompile
539 your windows APP if you're using ZOOM.
541 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
542 Commands "lang" and "charset" sets language and character set respectively.
543 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
544 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
546 Attributes from multiple CCL fields may be OR'ed rather than merged
547 using directive "@field or". Fields are still merged by default -
548 equivalent to "@field merge".
550 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
553 Fixed bug in zget for parameter ExtendedServicesResponse.
559 Added PQF feature: '@attr type=value' may be written as '@type=value'.
561 Client displays USR.1:SearchResult-1 (hits per term).
563 Additional Search Info for search in Generic Frontend Server.
565 Fixed CCL parsing of "field=s".
567 WIN32 installer - using the excellent NSIS software from nullsoft.
569 Fixed CCL parsing of "field = - <number>".
571 Added function yaz_marc_decode that decodes MARC for line mode
572 display or XML (similar to that used by JZKit).
574 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
575 Z39.50. But ISO/ILL was, however.
577 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
578 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
580 http://lcweb.loc.gov/z3950/agency/amend/am2.html
581 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
585 New YAZ client features: Command completion and new commands:
586 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
587 Code provided by Jacob Poulsen.
589 New call oid_trav, that visits all registered OIDs via callback.
591 Function ZOOM_record_get now returns const char pointer rather than
592 void pointer. It saves a lot of type casts.
594 For YAZ client, command "auth" now allows you to set authentication
595 in IdPass style. It is enabled when three tokens are given - order
596 is user, group and password.
598 Fix memory leaks in MARC record handling for ZOOM.
600 New option for YAZ client, -k <kilobytes> that sets
601 maximum record size. Similar to -k option for generic frontend
602 server and yaz-ztest.
604 More fixes for scan. Non-zero stepSize handled. OID's fixes.
606 Prefix query parser reports "fail" when bad attribute set is given.
608 Fix in MARC decoder. Proximity logging. Fix for attribute set
609 in scan handler for server. Patches by Shigeru Ishida.
611 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
614 Configure option --with-openssl=<dir> now works when a directory is
615 specified. Patch provided by Morten Bøgeskov.
617 New option for YAZ client, -u <auth>, that sets authentication.
619 ZOOM fix: error information was sometimes "missing", since error
620 was cleared/reset too when it shouldn't.
622 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
626 Scan for ZOOM API. New object ZOOM_scanset. New functions
627 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
628 ZOOM_scanset_destroy.
630 New ZOOM function, ZOOM_connection_last_event, that returns type
631 of last event (such as "receive data", "send data", "apdu received",
634 New ZOOM option, schema, that specifies schema for retrieval.
636 New CCL feature. Qualifiers can be aliases for one or more
637 other qualifiers (if more than one is given, OR is used).
639 ZOOM uses named result sets if target supports it.
641 Two new YAZ client commands: . (dot, which sources a script of YAZ
642 client commands), and ! (to execute shell command.). Implemented
645 Working on Debian packages.
649 YAZ client enables named result sets only if target supports it.
651 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
653 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
654 with key="host" to get same result.
656 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
657 Function Z3950_resultset_record(s) returns references to records
658 "owned" by resultset. To become owner use Z3950_record_clone.
660 Function z_ext_record handles Extended Services. Thanks to
665 CCL Parser fix: ignore token comma when dealing with and-lists.
667 Documentation updates for COMSTACK.
669 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
670 Changed prototype Z3950_records. For some functions, int parameters
671 were changed to size_t.
673 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
676 New MARC decode/display function, marc_display_exl, which properly rejects
677 non-ISO2709 records. YAZ client uses it.
681 Fix bug: local attribute set wasn't set correctly in PQF strings.
685 * Old Z39.50 codecs no longer supported.
687 Added ZOOM C binding. See http://zoom.z3950.org/
689 Renamed states for COMSTACKs to avoid confusion with events.
691 Implemented cs_look and proper cs_rcvconnect.
693 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
695 Configure detects POSIX threads on OpenBSD.
697 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
698 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
700 When error is returned from present handler, non-surrogate diagnostic
701 is returned in present response (and fetch handler is no longer called).
703 * Minor adjustments to pquery parser (PQF). Token characters may be
704 escaped by using backslash (C-style).
706 PQF parser allows string attribute values to be specified. For @attr,
707 non-numeric characters after the equal-sign are treated as strings
708 (e.g. @attr 9=title).
710 CCL trunction character may be defined (@truncation in file)
712 * function zget_ExtendedServicesRequest sets waitAction to
713 waitIfPossible (was wait).
715 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
718 CCL operator names may be set in field definition files (CCL_bibset).
719 See ccl/bib1 for an example.
721 Fixes in ASN.1 compiler for C++ compatibility.
723 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
724 and "op_or" to avoid conflict with C++.
726 Fixed problem with GNU readline detection on Redhat 7.0.
728 Added step-size for Scan backend handler.
730 Fixed bug that made the frontend server crash when no attribute
731 set was specified for scan.
733 Front-end server automatically switches to original working directory
734 when installed as an NT service. Previously -w had to be specified to
737 Added extended attributes for retrieval module (data1), so that data1
738 records carry d1_readXML/SGML attributes. d1_read also supports
739 null-data rules ( <tag/>)
741 On UNIX when POSIX threads are available, a separate library libyazthread
742 is created. Programmers should link with that library and the yaz library
743 when using threads. The reason for the split was that some applications
744 on Linux, such as Apache, doesn't work well when using shared objects that
747 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
748 (or any frontend server) in SSL mode by specifying ssl: followed by
749 address. Only tested on UNIX.
751 Added feature for CCL module. Virtual structure s=al or s=ol generates
752 and-list and or-list respectively instead of phrase search.
756 * Added prefix "yaz_" for the functions log_init.., log_file.. and
757 log_mask_str. This was done to avoid name conflicts with other libraries
758 (such as other PHP extensions).
760 Added raw OID member for preferred record syntax (request_format_raw)
761 and returned record syntax (output_format_raw) for backend fetch method.
763 Config file yaz-config now accepts options so that it returns specific
764 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
766 Shared library support for UNIX using GNU libtool.
768 * Modified backend interface. Request/Response struct's replaced by
769 one read/write C struct. For example bend_fetchrequest and
770 bend_fetchresult have been replaced by single bend_fetch_rr struct.
771 Every handler - even search has to be registered in bend_init
772 handler. This means that the YAZ library no longer refers to
773 external functions and it makes it possible to make the whole
774 thing a single DLL/SO.
776 Added Segment handler for backend server.
778 Added Zmbol/Zebra administrative functions to YAZ client.
780 Threaded frontend server on UNIX (when POSIX Threads are available).
781 Starting the server with option -T enables multi-threading.
785 Added configure option --enable-comp/disable-comp to control use
786 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
787 located in sub directory asn.
789 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
790 in ${exec_prefix}/bin along with the other programs yaz-client and
793 GNU automake used to maintain makefiles.
797 Changed retrieval module so that we can load records with no abstract
798 syntax defined. Tagpaths in these records are fully composed of string
801 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
805 On UNIX, the generated makefile now supports a proper 'make install'.
806 The prefix can be set via GNU configure to set the install location
807 (default is /usr/local).
809 * YAZ programs client and ztest were renamed to yaz-client and
810 yaz-ztest to avoid conflicts when users install YAZ in "standard"
811 locations, such as /usr/bin,/usr/local/bin,etc.
813 * YAZ Header files were moved from include to include/yaz. YAZ Header
814 files are referred to as include <yaz/log.h> rather than <log.h>.
815 The YAZ include path (-I ..) is therefore the same as before. Programmers
816 should update their #include statements or use -Ipath/include/yaz
817 instead. The main motivation for doing this change is that YAZ header files
818 can be installed in "standard" locations /usr/include,/usr/local/include
819 without introducing conflicts, since ALL YAZ header files are stored
820 in subdirectory yaz (under /usr/include for example).
822 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
823 rather than project/workspace files. We switched because project files
824 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
827 Changed name of logging function, logf, to yaz_log, to prevent name
828 clash with some math-log functions. The YAZ header log.h defines logf
829 to yaz_log (#define) so there should be no incompatibilities by this
832 Added bend_start/bend_stop handlers for server. These handler are
833 called on start/stop of server. For windows they are called whenever
834 a service is started/stopped.
836 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
837 a fairly small ASN.1 compiler written in Tcl. The compiler is located
838 in util/yc.tcl. The auto-generated C code structures are, in a few
839 cases, incompatible with the old decoders. There are differences in the
840 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
841 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
842 The preprocessor variable ASN_COMPILED is defined when the compiled
843 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
844 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
845 wish to use the old encoders/decoders you can specify --disable-yc
848 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
849 version so that it supports both new - and old version of DB Update
851 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
852 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
853 change. The name parameter can be set to 0 in which no name is specified
854 for the construction. The macros odr_implicit and odr_explicit sets name
855 parameter to zero for the construction involved. New macros
856 odr_implicit_tag and odr_explicit_tag are similar to the others,
857 except that a name parameter is added. For programmers' that don't use
858 ODR they probably only need to change the call to z_APDU and z_External.
860 Added access control facility by interfacing the TCP wrapper library.
861 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
862 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
863 name of the daemon and enables the access control as specified in
864 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
866 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
867 den Dool <H.M.vdnDool@kub.nl>.
869 Added reference ID parameter to most functions in server API - refer
870 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
872 Changed name of ccl library to libccl.a (was ccl.a).
874 Fixed bug in decoder for Explain (Category TargetInfo).
876 Added support for GNU readline in client. Thanks to Jacob Poulsen
877 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
879 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
880 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
881 IMPLEMENTATION! This change was made to the development version before
882 the ZIG decided to retract the amendment. If any users MUST be
883 compatible with the original Update definition, PLEASE CONTACT US, and
884 we will include a separate definition corresponding to the old Update
885 ES. Note that because of the change to the ASN.1 of the
886 TaskPackageRecordStructure we cannot define a single structure that
887 will support both versions.
889 * Added const modifier to buffer parameter for some ODR/BER encoding
890 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
891 completeWAIS, odr_dumpBER.
893 Fixed bug in client.c which caused a crash when a scanResponse didn't
894 contain positionOfTerm.
896 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
897 * will cause an error in a client if a non-YAZ target sends both a
898 * list of Scan entries and non-surrogate diagnostics.
900 Retrieval module enhancements. Tag sets may be typed in the reference
901 to it. From the .abs-file the "tagset" directive takes a third optional
902 integer type for the tag set referenced. From a .tag-file the "include"
903 directive takes a third optional type as well. The old "type" directive
904 in the tag set itself is still recognized but acts as the default type
907 Backend interface change. Individual Scan terms returned from bend_scan
908 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
909 in include/backend.h.
911 Retrieval module enhancements. Multiple tag sets and attribute sets may
912 be specified in abstract syntax specs. Revised the error/warning for
913 logging messages reported by the retrieval module when reading the
916 Object Identifier system (oid_..) changed. The API is backwards
917 compatible but the oid-routines now allocates new OID's when needed.
918 Raw OID's may be specified in oid_getvalbyname.
920 YAZ now uses GNU configure to generate Makefile(s).
922 * Minor changes in some of the member names of DeleteResultSetRequest and
923 DeleteResultSetResponse. See include/proto.h.
925 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
926 and added member 'languages' in TargetInfo (which was missing).
928 Changed the way attribute sets are handled in the retrieval
929 module. These are now cached, just like the abstract syntaxes
932 Changed YAZ so that it links with compiled ASN.1.
934 Added Explain-schema definitions and mapping routines. The following
935 Explain categories have been implemented: AttributeDetails,
936 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
938 Fixed minor bug in Windows version of Server Library.
940 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
942 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
944 Added EXTERNAL: UNIverse Resource Report (non-standard).
946 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
947 ENUMERATED and SET OF.
949 * Added 'const' to some of the char pointer arguments for the
950 functions, data1_read_node, data1_getelementbytagname,
951 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
954 Fixed bug in data1_insert_taggeddata - the last_child member of
955 parent wasn't initialised.
957 * Changed data1_read_record and data1_read_node so that the supplied
958 "SGML"-buffer is read-only. In particular the resulting data1 - tree
959 doesn't refer to any parts of the "SGML"-buffer.
961 Fixed bug in server library (Windows version of statserv_remove).
963 * Changed code so that it compiles as C++. The type definition
964 of Odr_fun which is a member of Odr_arm was changed. The result is,
965 that an explicit typecast is needed for the fun pointer when
966 using Odr_arm - as in:
967 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
969 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
971 Implemented the new structured date and time definition as approved
972 by the ZIG. Added schemaId element to the specificTag in Espec-1
973 (also approved at the last ZIG). Thanks to RVDM.
975 Added some Object identifiers (RVDM).
977 Changed the Update Extended Service (RVDM).
979 Added command "refid" to client which specifies referenceId for
980 the following requests.
982 Implemented extended service handling for server. See ztest.c
983 for an example as well as backend.h. New handlers are registerd
986 * Changed interface for sort in server.
988 Added new members to statserv_options_block. It allows a server
989 to read options from another source than just the command line. Thanks
990 to Charles Woodfield.
992 * Changed definition of Z_Triple in file prt-grs.h - member boolean
993 renamed to zboolean. Some C++ compilers complained about the name.
995 Minor changes to gils.abs. Added index 's' (sort) on title
996 and date/time-last-modified.
1000 Fixed bug in server library regarding inetd mode (-i). This bug
1001 was introduced by release 1.4.
1003 --- 1.4pl1 1998/1/29
1005 Added sort facility in client and backend server interface.
1007 Fixed problem with dependencies in Makefile(s).
1009 Fixed bugs for encoders/decoders of extended services and
1012 Implemented sub-tree feature for schemas. Sub-trees are
1013 referenced in *.abs-files. See explain.abs for an example
1014 of the use of this feature.
1016 Modified bib1.att; local attributes for ANY didn't include
1017 ANY itself (only affects use of the retrieval module).
1019 Fixed bug in plain SGML reader in function data1_read_node:
1020 tags with prefix "var" was incorrectly interpreted as variants.
1022 Added feature "sub-schemas" to enable references to - and definitions
1023 of - group of elements.
1025 * Removed member parent from type data1_element (in data1.h).
1027 Implemented function odr_nullval() that returns the value of
1030 * Removed member num_children from data1_node (in data1.h).
1032 Made NT service interface part of the server library. The
1033 function statserv_main uses the NT service when required and
1034 calls the statserv_start / statserv_close routines.
1036 Routine zget_SearchRequest and zget_PresentRequest fills
1037 resultSetName/Id member with "default" instead of "Default".
1039 Fixed memory leak in server. Request queue member wasn't freed.
1041 Fixed nmem_exit so that memory is freed.
1045 Revised the CCL parser utility to be thread safe.
1047 Added function, oid_ent_to_oid, to replace the function
1048 oid_getoidbyent, which is not thread safe.
1050 * Added nmem_init and nmem_exit to initialize and release
1051 NMEM resources. Function nmem_init should be called once in the
1052 initial thread before NMEM/ODR is used. statserv.c and client.c
1053 have been changed accordingly. The change was necessary to make
1054 NMEM thread safe. The NMEM memory pool is shared amongst threads
1055 in a process. Unix-based applications will still work fine without
1058 Added NT Services interface for the the Z39.50 (statserv) Server.
1059 Refer to the ztest.c source on the usage.
1061 Windows 95/NT port using MSVC5.0. Project files are included in the
1064 * Defined new 'global' handle for the retrieval (data1) system. The
1065 new handled, data1_handle, describes the state of the data1 system.
1066 This handle is passed as first argument to virtually all
1067 data1 related routines. The functions data1_create and data1_destroy
1068 creates and destroys a data1 handle respectively.
1070 Added ODR encode stream member to all backend request structures
1071 init, search, scan etc. This stream should be used to allocate all
1072 memory used for the response when thread safe operation is needed.
1074 Changed the comstack utility, cs_addstr, to be thread safe. The
1075 returned hostname string returned by the function is now part the
1078 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
1079 function. The cs_straddr takes a COMSTACK handle as argument, so this
1080 function must be used after cs_create and before bind/connect.
1081 This function is thread safe.
1083 Moved test server to 'ztest' directory - generic server code still
1084 in 'server' directory.
1086 Made prefix query (pquery.c) utility thread safe.
1088 Added new function modifier YAZ_EXPORT to 'export' public DLL
1089 functions when using windows (see include/yconfig.h).
1091 Added definitions to the OID database (util/oid.c) (RVDM).
1093 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
1095 Added call to ccl_rpn_delete in client program.
1097 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
1098 release of RPN structure.
1100 Added support for C++, headers uses extern "C" for public definitions.
1101 With input from RVDM.
1103 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
1104 Thanks to Ronald van der Meer (RVDM).
1106 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
1108 Added support for private extensions to the OID database
1109 (oid_setprivateoids()). Thanks to RVDM.
1111 Added optional, physical ANY (key replication)
1113 Fixed null-reference problem in GRS-1 output filter.
1115 Proximity operator added to Prefix Query Format (PQF).
1117 In test client command "base" accepts multiple databases.
1119 Fixed bug in cs_close stack that caused trouble with WINSOCK.
1123 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1125 Smallish bug-fixes in the new encoders/decoders (explain).
1127 Bug fixed in DeleteRequest.
1129 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
1131 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1133 Added SOIF syntax (using private OID for now) to retrieval module and client.
1135 Added Update extended service.
1137 Added SearchResult-1 additional info structure.
1139 Added optional CCL (ISO8777) interpreter as separate module. Available
1142 --- 1.2 1996/6/10 (1st anniversary release)
1144 Added Summary record syntax. Lightly tested.
1146 Added OPAC record syntax. Untested.
1148 Added ResourceReport service encoders/decoders. Untested.
1150 Fixed bug in z_Unit - wrong tagging on unitSystem.
1152 Fixed bug in the DiagRecs decoder.
1154 Added options for max PDU size and session timeout to frontend-server.
1156 Added documentation of query-language parsers and other supporting utilities.
1158 [frontend-server] Added Attribute set to the bend_scanrequest API.
1160 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
1161 surrogate diagnostics were generated.
1163 [retrieval] Allow multiple local values for attribute.
1165 [retrieval] Allow multiple attributes per element in .abs files. index type.
1167 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
1169 --- 1.1pl2 1996/4/10
1171 Minor changes, mostly specific to Zebra's requirements (retrieval)
1175 Repaired bug in frontend server when running multiple listening
1176 endpoints in dynamic mode.
1178 z_External() now won't break if a known, ASN.1 value comes encapsulated
1179 in an octet-string. The value will pass through unmodified in an Odr_oct.
1181 Added a bit of code to the demo client to decode & display
1182 ASN.1-structured records represented in the octet-aligned branch of
1183 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
1185 Added z_ext_getentbyref() to the ASN module. Doc updated.
1187 * Completed the SCAN definition in the ASN module. This may break SCAN
1188 code based on older YAZ-versions at compile-time. The fix is easy -
1191 * Added 'displayTerm' and OtherInformation to the TermInfo structure
1192 under the SCAN definition. Remember to initialize this, server-people.
1194 Comstack should now support the WAIS protocol in TCP/IP mode. Note
1195 that this does not extend to ODR and ASN.
1197 Comstack allows insertion of established socket (primarily for
1198 inetd-operation of servers). Doc updated.
1200 Front-end server can now start from the inetd in TCP mode. Doc
1203 --- 1.0pl4 1996/1/24
1207 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
1208 the rank and record number.
1210 Adjustments to the frontend server.
1212 Fixed diagnostic BER dumper. It ignored the file argument.
1216 Various changes to retrieval module.
1218 Changed the union discriminators of the protocol files from enums to
1219 ints paired with #defines.
1221 *Changed oident.class to oident.oclass to avoid a reserved word in C++
1224 *Changed operator in the RPN structure to 'roperator', again to avoid a
1227 Fixed problems in Explain decoders/encoders.
1229 --- 1.0pl2 1995/12/6
1231 Memory bug in log module fixed.
1233 --- 1.0pl1 1995/12/5
1235 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1237 Bug in Explain DatabaseInfo module fixed.
1239 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1243 The shift to v1.0 signals that we now consider the *core* functionality
1244 of YAZ reasonably stable (the core being more or less equivalent to
1245 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1246 tested (Explain not at all - though that will happen soonish).
1248 Minor changes to code to support Windows port.
1250 Various minor changes after we're getting to use GRS-1 & co. more.
1252 Added Espec-1 format.
1254 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1255 of the protocol and it cannot be selected when encoding (maps into 'string'
1256 when decoding). Needed to talk to some servers.
1258 Demo client can request simple element set names.
1260 Added Diagnostic Format encoders/decoders.
1262 Added simple Close handling to frontend server (no hooks for resource
1263 reporting yet), and demonstration client.
1265 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1267 --- 1.0b3 1995/08/24
1269 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1270 handled incorrectly when records were requested in the searchResponse. This
1271 will only affect you if you use the frontend-server.
1273 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1274 Test-client will ask for and print GRS1. Ztest will return dummy records
1277 Added Explain encoders/decoders to the service-level API. Untested.
1279 Added Extended Services: Item Order encoders and decoders to the Service-
1280 level API. Untested. We could use a recent copy of the pertinent bits
1281 of the ILL protocol to add those bits.
1283 Added diagnostic format 1 encoders/decoders to the service-level API.
1286 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1287 odr_cons.c, which causes a more correct output.
1289 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1290 was always set to 0 when no records were requested in the searchRequest.
1292 * Added better external-handling. This shouldn't harm old code that
1293 *encodes* externals. It can break code that looks for a
1294 'single-ASN1-type' representation, since those types that are known
1295 are now decoded immediately. Look at the SUTRS sample code in
1296 seshigh.c and client.c. Documentation updated.
1298 Handling of structured records in bend_fetchresponse. Length -1 marks
1299 structured record, type is deduced from format field.
1301 --- 1.0b2 1995/06/27
1302 Fairly quick maintenance release to add SUTRS support.
1304 Fixed handling of SUTRS records in the demonstration client.
1306 * Added format field to the bend_fetchrequest and bend_fetchresponce
1307 structures of the backend API (frontend server). When the record is
1308 returned, the value of the format field is mapped to an OID. The
1309 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1310 of the record. The special value VAL_NONE in the bend_request means
1311 that no specific format was requested by the client. Documentation
1312 updated accordingly. Test server (ztest) will return a fixed dummy
1313 SUTRS record if your client requests SUTRS.
1315 Documentation updated accordingly.
1317 You can now set external libraries and RANLIB support in the top-level
1321 First public release.