1 Possible compatibility problems with earlier versions marked with '*'.
3 Update CQL parser to use new CQL 1.1 modifiers for booleans and
10 Another fix for decoding of XML packed records.
14 Fixes for Chunked encoding. White space not ignored after length spec.
16 Update NS and use default NS for SRW diagnostic elements.
20 Implement ZOOM_resultset_cache_reset which resets record cache.
22 Implement ZOOM_resultset_sort which sorts a result set.
24 Implement chunked HTTP transfer.
26 For SSL, use -lssl -lcrypto on systems that don't have pkg-config.
30 Added member 'schema' to bend_explain_rr structure so that backend
31 can specify explain record identifier. Defaults to Zeerex 2.0.
33 Fix encoding of OID's of form 1.0.X. Bug introduced in 2.0.11.
37 * SRW/SRU 1.1 updates: updated diagnostic in srw.h to use uri instead
40 Added init command for yaz-client which sends "extra" init request.
42 Fixed two bugs in OID codec - ber_oidc. Throw error when encoding/decoding
43 bad truncated OID. Fix decoding of OID X.Y... when X=2 and Y>39.
45 Fixed a bug in ASN.1 compiler that caused Type-1 Operator codec to fail.
47 Make ZOOM error code for "invalid query".
49 Fixed compilation for SSL which wasn't properly enabled for all platforms.
53 For yaz.m4, allow second argument for YAZ_INIT to hold minimal version of
56 * SRW/SRU 1.1 updates. Diagnostic code now a URI.
58 Added option -p <file> to make Generic Frontend Server to write PID file.
60 Added option -D to put Generic Frontend Server in background on its own.
62 Make ZOOM C recognize option "password". If unset, "pass" is used
63 (for backwards compatibility).
65 Fixed a bug in Generic Frontend Server that could make it crash if a
66 client sets characterSetNegotation bit, but didn't pass negotiation stuff
69 New YAZ client command, zversion, that sets Z39.50 version (1,2,3..).
70 Must be issued before open, in order to be in effect.
72 --- 2.0.9-6 2004/01/12 Debian/Windows
74 Make the SRU server more picky WRT unknown params, etc.
76 Bug fix: ZOOM scan response didn't return displayTerm - when present.
78 New YAZ client command, options, that sets Z39.50 options.
80 New utility functions yaz_init_opt_{encode,decode} to encode/decode Z39.50
81 options from a string of tokens (one token for each option bit).
83 Update SRW diagnostic code messages.
85 --- 2.0.9-5 2004/01/07 Debian/Windows
87 Handle user defined stylesheet for SRW/SRU.
89 --- 2.0.9-4 2004/01/06 Debian/Windows
91 Fix bug in decoding of Content-Length.
93 --- 2.0.9-3 2004/01/06 Debian/Windows
95 Fix a bug with decoding of XML packed records.
97 --- 2.0.9-2 2004/01/05 Debian only
99 Allow empty ODR (NMEM=0) for odr_oiddup and odr_getoidbystr.
101 Fix bug in SRW/SRU diagnostics decoding.
105 Fixed bug in Generic Frontend Server which could drop records exceeding
106 preferred message size. Reported and fixed by Irina Dijour.
108 Fixed calculation of package size for structured records in Generic
109 Frontend Server. Reported and fixed by Irina Dijour.
111 Fixed namespace for SRW/SRU diagnostics.
113 Fixed SEGV in yaz-client that occured for HTTP connection errors.
117 * SRW/SRU 1.1. Since the Namespace has changed for SRW/SRU, it means that
118 this version is incompatible with version 1.0 and older YAZ SRW/SRU
121 CQL changes to reflect recent changes to the specification:
122 * Documentation talks about context sets instead of index sets.
123 * Documentation talks about indexes instead of qualifiers.
124 * The CQL-to-PQF transformer's configuration file now uses
125 "index.set.name = <attributes>" instead of the old form
126 "qualifier.set.name = <attributes>". (Both forms are still
127 understood but the latter is deprecated.)
128 * CQL terms with no explicit index specified are now interpreted as
129 cql.serverChoice instead of srw.serverChoice (which of course
130 behaves exactly the same.)
134 MARC conversion can now generate ISO2709 output in another
135 character set. yaz-marcdump uses this facility if you invoke it
138 Added missing C decl macros for include/yaz/{soap.h,srw.h,cql.h}, so that
139 functions from there can be used from C++.
143 Frontend server now transfers memory from decoded packages to stream
146 NMEM now clears freed blocks with 'Y' (hex 59) to force bad memory
147 references to show up.
149 ZOOM-C now supports standard ZOOM option names as described in v1.4 of
150 the ZOOM Abstract API. The older names for the same options are still
151 also supported for the benefit of old applications.
153 ZOOM-C supports "implementationId" and "implementationVersion" options
154 to go along with "implementationName". These allow the user code to
155 specify identification strings to be sent to servers.
156 Add OID for the new ExtLite attribute set.
158 Add OIDs for NACSIS-CATP, FINMARC2000 and MARC21-fin record-syntaxes,
159 as requested/supplid by Ere Maijala <ere@atp.fi>
161 For generic frontend server, reverse the order of
162 "toolkit-supplied / application-supplied" strings sent as implementationId,
163 Name and Version. Also, remove the spaces around the slash. This brings
164 the GFS in line with the behaviour of ZOOM-C on the client side.
166 Add function ZOOM_scanset_display_term.
168 yaz-client shows scan displayTerm if present.
170 Utility yaz-iconv is now installed by default along with the man page
173 Extend configure check for OpenSSL to use pkg-config where available (such
176 Incorporate patch by Morten Bogeskov which allows a Unix file socket
177 server to specify uid/gid/mask for socket using the format
178 unix:[user=uid,][group=gid,][umask=mask,]file=path
179 If file= is omitted the existing format is assumed, e.g.
181 in which case the mask is 0666 (rw for everybody).
183 Major restructure of YAZ source. All source in libyaz is in src directory.
184 Programs in client (yaz-client), ztest (yaz-ztest), zoom (zoom programs),
185 util (utility programs such as ASN.1 compiler, yaz-marcdump).
187 Added man page for utility yaz-marcdump (used to be called marcdump).
188 yaz-marcdump is installed by 'make install'.
190 Fixed a memory leak in Generic Frontend Server that occurred when decoding
191 of incoming package failed.
193 Fixed a potential DOS attack vulnerability in COMSTACK/ODR.
195 Change prototype of odr_perror: add const to message string.
197 New function yaz_log_reopen which reopens log file (for log rotate, etc.)
199 * Blocking parameter for COMSTACK cs_create is now a bit mask rather
200 than a blocking flag. Bit 0 is set for blocking, reset for non-blocking.
201 Bit 1 is set if cs_addrstr should avoid DNS lookup; reset for full
202 DNS lookup. There should not be any compatibility problems with this
203 assuming that blocking=1 or 0 is used.
205 Fix bad reference in UNIX comstack in function cs_addrstr.
207 Fix for compilation on AIX.
209 The generic front-end server (server/seshigh.c) now supports returning
210 Init diagnostics to the client in User-information-field, in
211 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
216 Allow any CQL relation (not just all,any,exact,scr).
218 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
219 that features the same UI.
221 Implemented command update0 in YAZ client which is equivalent to
222 update but uses old of Ext Update ASN.1.
224 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
225 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
226 Previously no OID was used for this info.
228 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
229 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
230 returns 'malformed search term' otherwise.
232 SortResponse member resultCount now set to NULL in sort handler of
235 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
238 Add three new utility functions for translating OIDs between various
239 formats -- symbolic name such as "Usmarc", minus-1-terminated int
240 arrays and dotted strings such as "1.2.840.10003.9.5.1":
241 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
242 char *oid_to_dotstring(const int *oid, char *oidbuf);
243 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
245 Reverted modifications for ES Update definition for z_IU0Update
246 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
247 is back to YAZ 2.0.2.
249 String value attributes for CCL parser.
251 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
252 which their FirstSearch server returns in Init responses, sometimes
253 carrying useful diagnostic information when Init fails. This has the
254 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
255 "z39.50/oclcui.asn", where its definition is somewhat different from
256 what OCLC document on their web-site, as required to interoperate with
259 Support for anonymous authentication in yaz-client. Use the command
262 * Fix the OID of the Index Data-local "admin" Extended Service from
263 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
264 the 1000, which indicates a locally-defined OID, was a mistake.
268 Fix CCL directive @case handling so that it affects string match for
269 both CCL keywords and qualifiers.
271 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
272 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
273 Decoder has been updated with ASN.1 changes as listed in
274 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
275 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
276 z_IUUpdate, remains unchanged.
278 ZOOM_record_get may now return a record in a specific character set.
279 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
280 "from" is the character set of record as returned by target. "to" is
281 the character set to be returned. If omitted, "to" is UTF-8.
283 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
285 New ODR utility, odr_getelement, which returns name of element for
286 which encoding/decoding failed.
288 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
289 in cases where a required element was omitted.
291 Bug fix: some MARC8 sequences were not converted.
293 New ZOOM option "step" which specifies number of records to be
294 retrieved in one chunk. Used in conjunction with "start" and "count".
296 SRW support for yaz-client. Use scheme http: to use it, e.g.
299 yaz-client no longer does (un)intelligent character set conversions
300 by default. Can be enabled with charset and marc_charset commands.
302 xmalloc trace fix for 64-bit systems such as DEC alpha.
304 Solaris 2.6 compile fix.
306 New function, cql_strerror() translates SRW error codes, as returned
307 by cql_transform_error(), into human-readable English strings. Used
308 in yaz-client diagnostics when appropriate.
310 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
311 converts it into a type-1 query which is sent to the server. This
312 makes CQL available for use with all Z-servers, as opposed to the tiny
313 minority that can handle CQL queries themselves.
317 New Debian package layout similar to the Redhat Package layout.
319 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
320 and search result respectively.
324 Redhat package is now several packages: libyaz (runtime libraries),
325 libyaz-devel (development and documentation, and yaz (utility programs).
326 Package spec file by Morten Bøgeskov.
328 New member 'schema' in struct bend_fetch_rr which the name of requested
329 schema (SRW/SRU) for record (or NULL if none was given). The fetch
330 handler MAY set this to reflect the schema of the returned record.
332 New member 'display_term' in struct scan_entry. GFS now sets member entries
333 and allocates scan entries to be filled by user scan handler. In previous
334 version, entries member was allocated by the scan handler. That still works,
335 but the GFS will ignore member display_term - assuming it was NOT set by
336 the handler. The fact that the GFS now allocates the entries both allows
337 for new members and makes a scan handler easier to write.
339 Fix CQL lex buffer overflow.
341 SRW/SRU recordPacking. For SRW default recordPacking is string. For
342 SRU default recordPacking is string.
344 SRU protocol support for frontend server.
346 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
348 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
350 Added scan for the ZOOM shell (zoomsh).
354 * String Identifers for Schemas (Amendment 5).
355 http://lcweb.loc.gov/z3950/agency/amend/am5.html
356 Old definition for schema
357 Odr_oid *schema; /* OPT */
362 Z_InternationalString *uri;
363 #define Z_Schema_oid 1
364 #define Z_Schema_uri 2
367 * resultCount parameter to Sort Response (Amendment 1).
368 http://lcweb.loc.gov/z3950/agency/amend/am1.html
370 Support for SRW 1.0 over HTTP. This is an optional feature and
371 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
374 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
375 on the same port. SRW SearchRetrieveRequests are mapped
376 to bend_init,bend_search,bend_fetch,bend_close.
378 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
380 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
381 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
383 ZOOM connections are SRW based if schem http is used for hostname
384 in connect, e.g. z = ZOOM_connection_new("http://myserver");
385 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
387 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
388 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
389 distance=n, order=true/false, relation=le, prox unit=word. If
390 n is omitted, distance 1 is used.
392 Fixed problem with C compiler include path in wrong order.
394 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
395 on Solaris. Patch from Ko van der Sloot.
397 New MARC decode API. All new functions operate on a yaz_marc_t
398 handle. The most important new functions are: yaz_marc_create,
399 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
400 decode and destroy respectively. Decoder can produce formats
401 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
402 include/yaz/marcdisp.h.
404 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
405 to UTF-8, UCS-32, wchar_t or Latin-1.
407 * Prototypes for yaz_iconv_-functions moved to separate header
408 include/yaz/yaz-iconv.h.
410 Make a few private functions 'static' in unix.c. This prevents
411 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
413 For ZOOM connection, the options targetImplementation{Id,Name,Version}
414 are set when Init Response is received.
416 New function ZOOM_connection_error_x similar to ZOOM_connection_error
417 but returns diagnostic set as well.
419 New function yaz_strerror which is a portable wrapper for
420 strerror/strerror_r/GetLastMessage.
422 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
423 is returned for MARC. If type is "oai", then OAI MARC is returned.
425 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
430 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
432 Fix bad race conditions on SIGTERM and terminate gracefully in
435 Move retrieval (data1) module to Zebra since nobody seems to be
438 Add GRS-1 render for ZOOM using same format as yaz-client.
442 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
444 Fix broken ESpec handling in data1 module.
446 SGML reader parses comments and makes them part of the data1 tree.
448 Added several type casts so that YAZ compiles as C++ code.
450 ZOOM didn't handle PDU encoding failures properly.
452 Added more Bib-1 diagnostics (approved extensions).
454 GNU configure: better check for iconv.
456 More portable use of accept, getpeername. Check for socklen_t. Use
457 int/size_t if socklen_t is not defined.
461 PQF parser rejects bad queries - including those with extra
462 characters in them. PQF parser used to silently ignore that.
463 Cleaner API for PQF added, which allows you to get detailed
464 error information for bad queries (see yaz/pquery.h).
466 Fixed bug in ZOOM_record_get for type "database".
468 Implemented mini iconv library supporting conversions between
469 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
471 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
475 Fixed ZOOM C record cache so that preferredRecordSyntax and
476 elementSetName is used to check for already fetched records.
480 Added three members in bend_initrequest structure to facilitate
481 character set negotiation.
483 Fixed a bug in frontend server that could cause indefinite
484 loops under rare conditions.
486 Revised character set utilities (charneg.h) so that encoding
487 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
489 For PQF, directive @term <type> sets term type for Scan/Search.
490 Here <type> is general, string, numeric, null. The term type
491 is inherited - just like @attr.
493 New call odr_set_charset that sets character set conversion for
494 international-strings on a ODR stream. Prototype is:
495 int odr_set_charset(ODR o, const char *to, const char *from);
496 The InternationalString is still represented as C string in YAZ
497 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
498 won't). On the protocol level, you can use any encoding.
500 Support for UNIX sockets in ZOOM.
502 Solaris recv sometimes returns errno == ENOENT. It is treated as
503 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
505 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
506 both client and server. Code by Morten Bøgeskov.
510 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
511 that they can be used directly from Visual Basic. You must recompile
512 your windows APP if you're using ZOOM.
514 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
515 Commands "lang" and "charset" sets language and character set respectively.
516 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
517 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
519 Attributes from multiple CCL fields may be OR'ed rather than merged
520 using directive "@field or". Fields are still merged by default -
521 equivalent to "@field merge".
523 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
526 Fixed bug in zget for parameter ExtendedServicesResponse.
532 Added PQF feature: '@attr type=value' may be written as '@type=value'.
534 Client displays USR.1:SearchResult-1 (hits per term).
536 Additional Search Info for search in Generic Frontend Server.
538 Fixed CCL parsing of "field=s".
540 WIN32 installer - using the excellent NSIS software from nullsoft.
542 Fixed CCL parsing of "field = - <number>".
544 Added function yaz_marc_decode that decodes MARC for line mode
545 display or XML (similar to that used by JZKit).
547 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
548 Z39.50. But ISO/ILL was, however.
550 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
551 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
553 http://lcweb.loc.gov/z3950/agency/amend/am2.html
554 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
558 New YAZ client features: Command completion and new commands:
559 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
560 Code provided by Jacob Poulsen.
562 New call oid_trav, that visits all registered OIDs via callback.
564 Function ZOOM_record_get now returns const char pointer rather than
565 void pointer. It saves a lot of type casts.
567 For YAZ client, command "auth" now allows you to set authentication
568 in IdPass style. It is enabled when three tokens are given - order
569 is user, group and password.
571 Fix memory leaks in MARC record handling for ZOOM.
573 New option for YAZ client, -k <kilobytes> that sets
574 maximum record size. Similar to -k option for generic frontend
575 server and yaz-ztest.
577 More fixes for scan. Non-zero stepSize handled. OID's fixes.
579 Prefix query parser reports "fail" when bad attribute set is given.
581 Fix in MARC decoder. Proximity logging. Fix for attribute set
582 in scan handler for server. Patches by Shigeru Ishida.
584 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
587 Configure option --with-openssl=<dir> now works when a directory is
588 specified. Patch provided by Morten Bøgeskov.
590 New option for YAZ client, -u <auth>, that sets authentication.
592 ZOOM fix: error information was sometimes "missing", since error
593 was cleared/reset too when it shouldn't.
595 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
599 Scan for ZOOM API. New object ZOOM_scanset. New functions
600 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
601 ZOOM_scanset_destroy.
603 New ZOOM function, ZOOM_connection_last_event, that returns type
604 of last event (such as "receive data", "send data", "apdu received",
607 New ZOOM option, schema, that specifies schema for retrieval.
609 New CCL feature. Qualifiers can be aliases for one or more
610 other qualifiers (if more than one is given, OR is used).
612 ZOOM uses named result sets if target supports it.
614 Two new YAZ client commands: . (dot, which sources a script of YAZ
615 client commands), and ! (to execute shell command.). Implemented
618 Working on Debian packages.
622 YAZ client enables named result sets only if target supports it.
624 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
626 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
627 with key="host" to get same result.
629 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
630 Function Z3950_resultset_record(s) returns references to records
631 "owned" by resultset. To become owner use Z3950_record_clone.
633 Function z_ext_record handles Extended Services. Thanks to
638 CCL Parser fix: ignore token comma when dealing with and-lists.
640 Documentation updates for COMSTACK.
642 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
643 Changed prototype Z3950_records. For some functions, int parameters
644 were changed to size_t.
646 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
649 New MARC decode/display function, marc_display_exl, which properly rejects
650 non-ISO2709 records. YAZ client uses it.
654 Fix bug: local attribute set wasn't set correctly in PQF strings.
658 * Old Z39.50 codecs no longer supported.
660 Added ZOOM C binding. See http://zoom.z3950.org/
662 Renamed states for COMSTACKs to avoid confusion with events.
664 Implemented cs_look and proper cs_rcvconnect.
666 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
668 Configure detects POSIX threads on OpenBSD.
670 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
671 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
673 When error is returned from present handler, non-surrogate diagnostic
674 is returned in present response (and fetch handler is no longer called).
676 * Minor adjustments to pquery parser (PQF). Token characters may be
677 escaped by using backslash (C-style).
679 PQF parser allows string attribute values to be specified. For @attr,
680 non-numeric characters after the equal-sign are treated as strings
681 (e.g. @attr 9=title).
683 CCL trunction character may be defined (@truncation in file)
685 * function zget_ExtendedServicesRequest sets waitAction to
686 waitIfPossible (was wait).
688 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
691 CCL operator names may be set in field definition files (CCL_bibset).
692 See ccl/bib1 for an example.
694 Fixes in ASN.1 compiler for C++ compatibility.
696 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
697 and "op_or" to avoid conflict with C++.
699 Fixed problem with GNU readline detection on Redhat 7.0.
701 Added step-size for Scan backend handler.
703 Fixed bug that made the frontend server crash when no attribute
704 set was specified for scan.
706 Front-end server automatically switches to original working directory
707 when installed as an NT service. Previously -w had to be specified to
710 Added extended attributes for retrieval module (data1), so that data1
711 records carry d1_readXML/SGML attributes. d1_read also supports
712 null-data rules ( <tag/>)
714 On UNIX when POSIX threads are available, a separate library libyazthread
715 is created. Programmers should link with that library and the yaz library
716 when using threads. The reason for the split was that some applications
717 on Linux, such as Apache, doesn't work well when using shared objects that
720 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
721 (or any frontend server) in SSL mode by specifying ssl: followed by
722 address. Only tested on UNIX.
724 Added feature for CCL module. Virtual structure s=al or s=ol generates
725 and-list and or-list respectively instead of phrase search.
729 * Added prefix "yaz_" for the functions log_init.., log_file.. and
730 log_mask_str. This was done to avoid name conflicts with other libraries
731 (such as other PHP extensions).
733 Added raw OID member for preferred record syntax (request_format_raw)
734 and returned record syntax (output_format_raw) for backend fetch method.
736 Config file yaz-config now accepts options so that it returns specific
737 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
739 Shared library support for UNIX using GNU libtool.
741 * Modified backend interface. Request/Response struct's replaced by
742 one read/write C struct. For example bend_fetchrequest and
743 bend_fetchresult have been replaced by single bend_fetch_rr struct.
744 Every handler - even search has to be registered in bend_init
745 handler. This means that the YAZ library no longer refers to
746 external functions and it makes it possible to make the whole
747 thing a single DLL/SO.
749 Added Segment handler for backend server.
751 Added Zmbol/Zebra administrative functions to YAZ client.
753 Threaded frontend server on UNIX (when POSIX Threads are available).
754 Starting the server with option -T enables multi-threading.
758 Added configure option --enable-comp/disable-comp to control use
759 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
760 located in sub directory asn.
762 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
763 in ${exec_prefix}/bin along with the other programs yaz-client and
766 GNU automake used to maintain makefiles.
770 Changed retrieval module so that we can load records with no abstract
771 syntax defined. Tagpaths in these records are fully composed of string
774 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
778 On UNIX, the generated makefile now supports a proper 'make install'.
779 The prefix can be set via GNU configure to set the install location
780 (default is /usr/local).
782 * YAZ programs client and ztest were renamed to yaz-client and
783 yaz-ztest to avoid conflicts when users install YAZ in "standard"
784 locations, such as /usr/bin,/usr/local/bin,etc.
786 * YAZ Header files were moved from include to include/yaz. YAZ Header
787 files are referred to as include <yaz/log.h> rather than <log.h>.
788 The YAZ include path (-I ..) is therefore the same as before. Programmers
789 should update their #include statements or use -Ipath/include/yaz
790 instead. The main motivation for doing this change is that YAZ header files
791 can be installed in "standard" locations /usr/include,/usr/local/include
792 without introducing conflicts, since ALL YAZ header files are stored
793 in subdirectory yaz (under /usr/include for example).
795 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
796 rather than project/workspace files. We switched because project files
797 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
800 Changed name of logging function, logf, to yaz_log, to prevent name
801 clash with some math-log functions. The YAZ header log.h defines logf
802 to yaz_log (#define) so there should be no incompatibilities by this
805 Added bend_start/bend_stop handlers for server. These handler are
806 called on start/stop of server. For windows they are called whenever
807 a service is started/stopped.
809 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
810 a fairly small ASN.1 compiler written in Tcl. The compiler is located
811 in util/yc.tcl. The auto-generated C code structures are, in a few
812 cases, incompatible with the old decoders. There are differences in the
813 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
814 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
815 The preprocessor variable ASN_COMPILED is defined when the compiled
816 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
817 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
818 wish to use the old encoders/decoders you can specify --disable-yc
821 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
822 version so that it supports both new - and old version of DB Update
824 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
825 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
826 change. The name parameter can be set to 0 in which no name is specified
827 for the construction. The macros odr_implicit and odr_explicit sets name
828 parameter to zero for the construction involved. New macros
829 odr_implicit_tag and odr_explicit_tag are similar to the others,
830 except that a name parameter is added. For programmers' that don't use
831 ODR they probably only need to change the call to z_APDU and z_External.
833 Added access control facility by interfacing the TCP wrapper library.
834 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
835 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
836 name of the daemon and enables the access control as specified in
837 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
839 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
840 den Dool <H.M.vdnDool@kub.nl>.
842 Added reference ID parameter to most functions in server API - refer
843 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
845 Changed name of ccl library to libccl.a (was ccl.a).
847 Fixed bug in decoder for Explain (Category TargetInfo).
849 Added support for GNU readline in client. Thanks to Jacob Poulsen
850 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
852 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
853 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
854 IMPLEMENTATION! This change was made to the development version before
855 the ZIG decided to retract the amendment. If any users MUST be
856 compatible with the original Update definition, PLEASE CONTACT US, and
857 we will include a separate definition corresponding to the old Update
858 ES. Note that because of the change to the ASN.1 of the
859 TaskPackageRecordStructure we cannot define a single structure that
860 will support both versions.
862 * Added const modifier to buffer parameter for some ODR/BER encoding
863 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
864 completeWAIS, odr_dumpBER.
866 Fixed bug in client.c which caused a crash when a scanResponse didn't
867 contain positionOfTerm.
869 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
870 * will cause an error in a client if a non-YAZ target sends both a
871 * list of Scan entries and non-surrogate diagnostics.
873 Retrieval module enhancements. Tag sets may be typed in the reference
874 to it. From the .abs-file the "tagset" directive takes a third optional
875 integer type for the tag set referenced. From a .tag-file the "include"
876 directive takes a third optional type as well. The old "type" directive
877 in the tag set itself is still recognized but acts as the default type
880 Backend interface change. Individual Scan terms returned from bend_scan
881 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
882 in include/backend.h.
884 Retrieval module enhancements. Multiple tag sets and attribute sets may
885 be specified in abstract syntax specs. Revised the error/warning for
886 logging messages reported by the retrieval module when reading the
889 Object Identifier system (oid_..) changed. The API is backwards
890 compatible but the oid-routines now allocates new OID's when needed.
891 Raw OID's may be specified in oid_getvalbyname.
893 YAZ now uses GNU configure to generate Makefile(s).
895 * Minor changes in some of the member names of DeleteResultSetRequest and
896 DeleteResultSetResponse. See include/proto.h.
898 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
899 and added member 'languages' in TargetInfo (which was missing).
901 Changed the way attribute sets are handled in the retrieval
902 module. These are now cached, just like the abstract syntaxes
905 Changed YAZ so that it links with compiled ASN.1.
907 Added Explain-schema definitions and mapping routines. The following
908 Explain categories have been implemented: AttributeDetails,
909 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
911 Fixed minor bug in Windows version of Server Library.
913 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
915 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
917 Added EXTERNAL: UNIverse Resource Report (non-standard).
919 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
920 ENUMERATED and SET OF.
922 * Added 'const' to some of the char pointer arguments for the
923 functions, data1_read_node, data1_getelementbytagname,
924 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
927 Fixed bug in data1_insert_taggeddata - the last_child member of
928 parent wasn't initialised.
930 * Changed data1_read_record and data1_read_node so that the supplied
931 "SGML"-buffer is read-only. In particular the resulting data1 - tree
932 doesn't refer to any parts of the "SGML"-buffer.
934 Fixed bug in server library (Windows version of statserv_remove).
936 * Changed code so that it compiles as C++. The type definition
937 of Odr_fun which is a member of Odr_arm was changed. The result is,
938 that an explicit typecast is needed for the fun pointer when
939 using Odr_arm - as in:
940 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
942 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
944 Implemented the new structured date and time definition as approved
945 by the ZIG. Added schemaId element to the specificTag in Espec-1
946 (also approved at the last ZIG). Thanks to RVDM.
948 Added some Object identifiers (RVDM).
950 Changed the Update Extended Service (RVDM).
952 Added command "refid" to client which specifies referenceId for
953 the following requests.
955 Implemented extended service handling for server. See ztest.c
956 for an example as well as backend.h. New handlers are registerd
959 * Changed interface for sort in server.
961 Added new members to statserv_options_block. It allows a server
962 to read options from another source than just the command line. Thanks
963 to Charles Woodfield.
965 * Changed definition of Z_Triple in file prt-grs.h - member boolean
966 renamed to zboolean. Some C++ compilers complained about the name.
968 Minor changes to gils.abs. Added index 's' (sort) on title
969 and date/time-last-modified.
973 Fixed bug in server library regarding inetd mode (-i). This bug
974 was introduced by release 1.4.
978 Added sort facility in client and backend server interface.
980 Fixed problem with dependencies in Makefile(s).
982 Fixed bugs for encoders/decoders of extended services and
985 Implemented sub-tree feature for schemas. Sub-trees are
986 referenced in *.abs-files. See explain.abs for an example
987 of the use of this feature.
989 Modified bib1.att; local attributes for ANY didn't include
990 ANY itself (only affects use of the retrieval module).
992 Fixed bug in plain SGML reader in function data1_read_node:
993 tags with prefix "var" was incorrectly interpreted as variants.
995 Added feature "sub-schemas" to enable references to - and definitions
996 of - group of elements.
998 * Removed member parent from type data1_element (in data1.h).
1000 Implemented function odr_nullval() that returns the value of
1003 * Removed member num_children from data1_node (in data1.h).
1005 Made NT service interface part of the server library. The
1006 function statserv_main uses the NT service when required and
1007 calls the statserv_start / statserv_close routines.
1009 Routine zget_SearchRequest and zget_PresentRequest fills
1010 resultSetName/Id member with "default" instead of "Default".
1012 Fixed memory leak in server. Request queue member wasn't freed.
1014 Fixed nmem_exit so that memory is freed.
1018 Revised the CCL parser utility to be thread safe.
1020 Added function, oid_ent_to_oid, to replace the function
1021 oid_getoidbyent, which is not thread safe.
1023 * Added nmem_init and nmem_exit to initialize and release
1024 NMEM resources. Function nmem_init should be called once in the
1025 initial thread before NMEM/ODR is used. statserv.c and client.c
1026 have been changed accordingly. The change was necessary to make
1027 NMEM thread safe. The NMEM memory pool is shared amongst threads
1028 in a process. Unix-based applications will still work fine without
1031 Added NT Services interface for the the Z39.50 (statserv) Server.
1032 Refer to the ztest.c source on the usage.
1034 Windows 95/NT port using MSVC5.0. Project files are included in the
1037 * Defined new 'global' handle for the retrieval (data1) system. The
1038 new handled, data1_handle, describes the state of the data1 system.
1039 This handle is passed as first argument to virtually all
1040 data1 related routines. The functions data1_create and data1_destroy
1041 creates and destroys a data1 handle respectively.
1043 Added ODR encode stream member to all backend request structures
1044 init, search, scan etc. This stream should be used to allocate all
1045 memory used for the response when thread safe operation is needed.
1047 Changed the comstack utility, cs_addstr, to be thread safe. The
1048 returned hostname string returned by the function is now part the
1051 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
1052 function. The cs_straddr takes a COMSTACK handle as argument, so this
1053 function must be used after cs_create and before bind/connect.
1054 This function is thread safe.
1056 Moved test server to 'ztest' directory - generic server code still
1057 in 'server' directory.
1059 Made prefix query (pquery.c) utility thread safe.
1061 Added new function modifier YAZ_EXPORT to 'export' public DLL
1062 functions when using windows (see include/yconfig.h).
1064 Added definitions to the OID database (util/oid.c) (RVDM).
1066 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
1068 Added call to ccl_rpn_delete in client program.
1070 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
1071 release of RPN structure.
1073 Added support for C++, headers uses extern "C" for public definitions.
1074 With input from RVDM.
1076 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
1077 Thanks to Ronald van der Meer (RVDM).
1079 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
1081 Added support for private extensions to the OID database
1082 (oid_setprivateoids()). Thanks to RVDM.
1084 Added optional, physical ANY (key replication)
1086 Fixed null-reference problem in GRS-1 output filter.
1088 Proximity operator added to Prefix Query Format (PQF).
1090 In test client command "base" accepts multiple databases.
1092 Fixed bug in cs_close stack that caused trouble with WINSOCK.
1096 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1098 Smallish bug-fixes in the new encoders/decoders (explain).
1100 Bug fixed in DeleteRequest.
1102 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
1104 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1106 Added SOIF syntax (using private OID for now) to retrieval module and client.
1108 Added Update extended service.
1110 Added SearchResult-1 additional info structure.
1112 Added optional CCL (ISO8777) interpreter as separate module. Available
1115 --- 1.2 1996/6/10 (1st anniversary release)
1117 Added Summary record syntax. Lightly tested.
1119 Added OPAC record syntax. Untested.
1121 Added ResourceReport service encoders/decoders. Untested.
1123 Fixed bug in z_Unit - wrong tagging on unitSystem.
1125 Fixed bug in the DiagRecs decoder.
1127 Added options for max PDU size and session timeout to frontend-server.
1129 Added documentation of query-language parsers and other supporting utilities.
1131 [frontend-server] Added Attribute set to the bend_scanrequest API.
1133 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
1134 surrogate diagnostics were generated.
1136 [retrieval] Allow multiple local values for attribute.
1138 [retrieval] Allow multiple attributes per element in .abs files. index type.
1140 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
1142 --- 1.1pl2 1996/4/10
1144 Minor changes, mostly specific to Zebra's requirements (retrieval)
1148 Repaired bug in frontend server when running multiple listening
1149 endpoints in dynamic mode.
1151 z_External() now won't break if a known, ASN.1 value comes encapsulated
1152 in an octet-string. The value will pass through unmodified in an Odr_oct.
1154 Added a bit of code to the demo client to decode & display
1155 ASN.1-structured records represented in the octet-aligned branch of
1156 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
1158 Added z_ext_getentbyref() to the ASN module. Doc updated.
1160 * Completed the SCAN definition in the ASN module. This may break SCAN
1161 code based on older YAZ-versions at compile-time. The fix is easy -
1164 * Added 'displayTerm' and OtherInformation to the TermInfo structure
1165 under the SCAN definition. Remember to initialize this, server-people.
1167 Comstack should now support the WAIS protocol in TCP/IP mode. Note
1168 that this does not extend to ODR and ASN.
1170 Comstack allows insertion of established socket (primarily for
1171 inetd-operation of servers). Doc updated.
1173 Front-end server can now start from the inetd in TCP mode. Doc
1176 --- 1.0pl4 1996/1/24
1180 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
1181 the rank and record number.
1183 Adjustments to the frontend server.
1185 Fixed diagnostic BER dumper. It ignored the file argument.
1189 Various changes to retrieval module.
1191 Changed the union discriminators of the protocol files from enums to
1192 ints paired with #defines.
1194 *Changed oident.class to oident.oclass to avoid a reserved word in C++
1197 *Changed operator in the RPN structure to 'roperator', again to avoid a
1200 Fixed problems in Explain decoders/encoders.
1202 --- 1.0pl2 1995/12/6
1204 Memory bug in log module fixed.
1206 --- 1.0pl1 1995/12/5
1208 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1210 Bug in Explain DatabaseInfo module fixed.
1212 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1216 The shift to v1.0 signals that we now consider the *core* functionality
1217 of YAZ reasonably stable (the core being more or less equivalent to
1218 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1219 tested (Explain not at all - though that will happen soonish).
1221 Minor changes to code to support Windows port.
1223 Various minor changes after we're getting to use GRS-1 & co. more.
1225 Added Espec-1 format.
1227 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1228 of the protocol and it cannot be selected when encoding (maps into 'string'
1229 when decoding). Needed to talk to some servers.
1231 Demo client can request simple element set names.
1233 Added Diagnostic Format encoders/decoders.
1235 Added simple Close handling to frontend server (no hooks for resource
1236 reporting yet), and demonstration client.
1238 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1240 --- 1.0b3 1995/08/24
1242 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1243 handled incorrectly when records were requested in the searchResponse. This
1244 will only affect you if you use the frontend-server.
1246 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1247 Test-client will ask for and print GRS1. Ztest will return dummy records
1250 Added Explain encoders/decoders to the service-level API. Untested.
1252 Added Extended Services: Item Order encoders and decoders to the Service-
1253 level API. Untested. We could use a recent copy of the pertinent bits
1254 of the ILL protocol to add those bits.
1256 Added diagnostic format 1 encoders/decoders to the service-level API.
1259 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1260 odr_cons.c, which causes a more correct output.
1262 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1263 was always set to 0 when no records were requested in the searchRequest.
1265 * Added better external-handling. This shouldn't harm old code that
1266 *encodes* externals. It can break code that looks for a
1267 'single-ASN1-type' representation, since those types that are known
1268 are now decoded immediately. Look at the SUTRS sample code in
1269 seshigh.c and client.c. Documentation updated.
1271 Handling of structured records in bend_fetchresponse. Length -1 marks
1272 structured record, type is deduced from format field.
1274 --- 1.0b2 1995/06/27
1275 Fairly quick maintenance release to add SUTRS support.
1277 Fixed handling of SUTRS records in the demonstration client.
1279 * Added format field to the bend_fetchrequest and bend_fetchresponce
1280 structures of the backend API (frontend server). When the record is
1281 returned, the value of the format field is mapped to an OID. The
1282 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1283 of the record. The special value VAL_NONE in the bend_request means
1284 that no specific format was requested by the client. Documentation
1285 updated accordingly. Test server (ztest) will return a fixed dummy
1286 SUTRS record if your client requests SUTRS.
1288 Documentation updated accordingly.
1290 You can now set external libraries and RANLIB support in the top-level
1294 First public release.