1 Possible compatibility problems with earlier versions marked with '*'.
3 Fix --disable-tcpd to really disable tcpd. Patch by Robin H. Johnson.
7 Rename CHANGELOG to NEWS to follow GNU style packing.
9 Fix bug with missing initialization of member in init_diagnostics.
10 This bug affects threaded version of GFS server.
14 Use wrbuf_xmlputs_n instead of wrbuf_write_cdata to avoid clash with
17 Ensure zlib.dll is packed with Windows install.
21 Fix encoding of xsd:string to use text instead of CDATA.
23 Fix endless loop in CQL parser with unbalanced ".
25 Use a more compact way to store MARC-8 conversion tables.
27 --- 2.0.16 2004/03/16 Debian only
29 Oleg Kolobov Fixed a bug in yaz_iconv regarding conversion to
32 Update CQL parser to use new CQL 1.1 modifiers for booleans and
39 Another fix for decoding of XML packed records.
43 Fixes for Chunked encoding. White space not ignored after length spec.
45 Update NS and use default NS for SRW diagnostic elements.
49 Implement ZOOM_resultset_cache_reset which resets record cache.
51 Implement ZOOM_resultset_sort which sorts a result set.
53 Implement chunked HTTP transfer.
55 For SSL, use -lssl -lcrypto on systems that don't have pkg-config.
59 Added member 'schema' to bend_explain_rr structure so that backend
60 can specify explain record identifier. Defaults to Zeerex 2.0.
62 Fix encoding of OID's of form 1.0.X. Bug introduced in 2.0.11.
66 * SRW/SRU 1.1 updates: updated diagnostic in srw.h to use uri instead
69 Added init command for yaz-client which sends "extra" init request.
71 Fixed two bugs in OID codec - ber_oidc. Throw error when encoding/decoding
72 bad truncated OID. Fix decoding of OID X.Y... when X=2 and Y>39.
74 Fixed a bug in ASN.1 compiler that caused Type-1 Operator codec to fail.
76 Make ZOOM error code for "invalid query".
78 Fixed compilation for SSL which wasn't properly enabled for all platforms.
82 For yaz.m4, allow second argument for YAZ_INIT to hold minimal version of
85 * SRW/SRU 1.1 updates. Diagnostic code now a URI.
87 Added option -p <file> to make Generic Frontend Server to write PID file.
89 Added option -D to put Generic Frontend Server in background on its own.
91 Make ZOOM C recognize option "password". If unset, "pass" is used
92 (for backwards compatibility).
94 Fixed a bug in Generic Frontend Server that could make it crash if a
95 client sets characterSetNegotation bit, but didn't pass negotiation stuff
98 New YAZ client command, zversion, that sets Z39.50 version (1,2,3..).
99 Must be issued before open, in order to be in effect.
101 --- 2.0.9-6 2004/01/12 Debian/Windows
103 Make the SRU server more picky WRT unknown params, etc.
105 Bug fix: ZOOM scan response didn't return displayTerm - when present.
107 New YAZ client command, options, that sets Z39.50 options.
109 New utility functions yaz_init_opt_{encode,decode} to encode/decode Z39.50
110 options from a string of tokens (one token for each option bit).
112 Update SRW diagnostic code messages.
114 --- 2.0.9-5 2004/01/07 Debian/Windows
116 Handle user defined stylesheet for SRW/SRU.
118 --- 2.0.9-4 2004/01/06 Debian/Windows
120 Fix bug in decoding of Content-Length.
122 --- 2.0.9-3 2004/01/06 Debian/Windows
124 Fix a bug with decoding of XML packed records.
126 --- 2.0.9-2 2004/01/05 Debian only
128 Allow empty ODR (NMEM=0) for odr_oiddup and odr_getoidbystr.
130 Fix bug in SRW/SRU diagnostics decoding.
134 Fixed bug in Generic Frontend Server which could drop records exceeding
135 preferred message size. Reported and fixed by Irina Dijour.
137 Fixed calculation of package size for structured records in Generic
138 Frontend Server. Reported and fixed by Irina Dijour.
140 Fixed namespace for SRW/SRU diagnostics.
142 Fixed SEGV in yaz-client that occured for HTTP connection errors.
146 * SRW/SRU 1.1. Since the Namespace has changed for SRW/SRU, it means that
147 this version is incompatible with version 1.0 and older YAZ SRW/SRU
150 CQL changes to reflect recent changes to the specification:
151 * Documentation talks about context sets instead of index sets.
152 * Documentation talks about indexes instead of qualifiers.
153 * The CQL-to-PQF transformer's configuration file now uses
154 "index.set.name = <attributes>" instead of the old form
155 "qualifier.set.name = <attributes>". (Both forms are still
156 understood but the latter is deprecated.)
157 * CQL terms with no explicit index specified are now interpreted as
158 cql.serverChoice instead of srw.serverChoice (which of course
159 behaves exactly the same.)
163 MARC conversion can now generate ISO2709 output in another
164 character set. yaz-marcdump uses this facility if you invoke it
167 Added missing C decl macros for include/yaz/{soap.h,srw.h,cql.h}, so that
168 functions from there can be used from C++.
172 Frontend server now transfers memory from decoded packages to stream
175 NMEM now clears freed blocks with 'Y' (hex 59) to force bad memory
176 references to show up.
178 ZOOM-C now supports standard ZOOM option names as described in v1.4 of
179 the ZOOM Abstract API. The older names for the same options are still
180 also supported for the benefit of old applications.
182 ZOOM-C supports "implementationId" and "implementationVersion" options
183 to go along with "implementationName". These allow the user code to
184 specify identification strings to be sent to servers.
185 Add OID for the new ExtLite attribute set.
187 Add OIDs for NACSIS-CATP, FINMARC2000 and MARC21-fin record-syntaxes,
188 as requested/supplid by Ere Maijala <ere@atp.fi>
190 For generic frontend server, reverse the order of
191 "toolkit-supplied / application-supplied" strings sent as implementationId,
192 Name and Version. Also, remove the spaces around the slash. This brings
193 the GFS in line with the behaviour of ZOOM-C on the client side.
195 Add function ZOOM_scanset_display_term.
197 yaz-client shows scan displayTerm if present.
199 Utility yaz-iconv is now installed by default along with the man page
202 Extend configure check for OpenSSL to use pkg-config where available (such
205 Incorporate patch by Morten Bogeskov which allows a Unix file socket
206 server to specify uid/gid/mask for socket using the format
207 unix:[user=uid,][group=gid,][umask=mask,]file=path
208 If file= is omitted the existing format is assumed, e.g.
210 in which case the mask is 0666 (rw for everybody).
212 Major restructure of YAZ source. All source in libyaz is in src directory.
213 Programs in client (yaz-client), ztest (yaz-ztest), zoom (zoom programs),
214 util (utility programs such as ASN.1 compiler, yaz-marcdump).
216 Added man page for utility yaz-marcdump (used to be called marcdump).
217 yaz-marcdump is installed by 'make install'.
219 Fixed a memory leak in Generic Frontend Server that occurred when decoding
220 of incoming package failed.
222 Fixed a potential DOS attack vulnerability in COMSTACK/ODR.
224 Change prototype of odr_perror: add const to message string.
226 New function yaz_log_reopen which reopens log file (for log rotate, etc.)
228 * Blocking parameter for COMSTACK cs_create is now a bit mask rather
229 than a blocking flag. Bit 0 is set for blocking, reset for non-blocking.
230 Bit 1 is set if cs_addrstr should avoid DNS lookup; reset for full
231 DNS lookup. There should not be any compatibility problems with this
232 assuming that blocking=1 or 0 is used.
234 Fix bad reference in UNIX comstack in function cs_addrstr.
236 Fix for compilation on AIX.
238 The generic front-end server (server/seshigh.c) now supports returning
239 Init diagnostics to the client in User-information-field, in
240 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
245 Allow any CQL relation (not just all,any,exact,scr).
247 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
248 that features the same UI.
250 Implemented command update0 in YAZ client which is equivalent to
251 update but uses old of Ext Update ASN.1.
253 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
254 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
255 Previously no OID was used for this info.
257 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
258 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
259 returns 'malformed search term' otherwise.
261 SortResponse member resultCount now set to NULL in sort handler of
264 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
267 Add three new utility functions for translating OIDs between various
268 formats -- symbolic name such as "Usmarc", minus-1-terminated int
269 arrays and dotted strings such as "1.2.840.10003.9.5.1":
270 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
271 char *oid_to_dotstring(const int *oid, char *oidbuf);
272 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
274 Reverted modifications for ES Update definition for z_IU0Update
275 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
276 is back to YAZ 2.0.2.
278 String value attributes for CCL parser.
280 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
281 which their FirstSearch server returns in Init responses, sometimes
282 carrying useful diagnostic information when Init fails. This has the
283 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
284 "z39.50/oclcui.asn", where its definition is somewhat different from
285 what OCLC document on their web-site, as required to interoperate with
288 Support for anonymous authentication in yaz-client. Use the command
291 * Fix the OID of the Index Data-local "admin" Extended Service from
292 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
293 the 1000, which indicates a locally-defined OID, was a mistake.
297 Fix CCL directive @case handling so that it affects string match for
298 both CCL keywords and qualifiers.
300 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
301 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
302 Decoder has been updated with ASN.1 changes as listed in
303 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
304 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
305 z_IUUpdate, remains unchanged.
307 ZOOM_record_get may now return a record in a specific character set.
308 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
309 "from" is the character set of record as returned by target. "to" is
310 the character set to be returned. If omitted, "to" is UTF-8.
312 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
314 New ODR utility, odr_getelement, which returns name of element for
315 which encoding/decoding failed.
317 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
318 in cases where a required element was omitted.
320 Bug fix: some MARC8 sequences were not converted.
322 New ZOOM option "step" which specifies number of records to be
323 retrieved in one chunk. Used in conjunction with "start" and "count".
325 SRW support for yaz-client. Use scheme http: to use it, e.g.
328 yaz-client no longer does (un)intelligent character set conversions
329 by default. Can be enabled with charset and marc_charset commands.
331 xmalloc trace fix for 64-bit systems such as DEC alpha.
333 Solaris 2.6 compile fix.
335 New function, cql_strerror() translates SRW error codes, as returned
336 by cql_transform_error(), into human-readable English strings. Used
337 in yaz-client diagnostics when appropriate.
339 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
340 converts it into a type-1 query which is sent to the server. This
341 makes CQL available for use with all Z-servers, as opposed to the tiny
342 minority that can handle CQL queries themselves.
346 New Debian package layout similar to the Redhat Package layout.
348 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
349 and search result respectively.
353 Redhat package is now several packages: libyaz (runtime libraries),
354 libyaz-devel (development and documentation, and yaz (utility programs).
355 Package spec file by Morten Bøgeskov.
357 New member 'schema' in struct bend_fetch_rr which the name of requested
358 schema (SRW/SRU) for record (or NULL if none was given). The fetch
359 handler MAY set this to reflect the schema of the returned record.
361 New member 'display_term' in struct scan_entry. GFS now sets member entries
362 and allocates scan entries to be filled by user scan handler. In previous
363 version, entries member was allocated by the scan handler. That still works,
364 but the GFS will ignore member display_term - assuming it was NOT set by
365 the handler. The fact that the GFS now allocates the entries both allows
366 for new members and makes a scan handler easier to write.
368 Fix CQL lex buffer overflow.
370 SRW/SRU recordPacking. For SRW default recordPacking is string. For
371 SRU default recordPacking is string.
373 SRU protocol support for frontend server.
375 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
377 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
379 Added scan for the ZOOM shell (zoomsh).
383 * String Identifers for Schemas (Amendment 5).
384 http://lcweb.loc.gov/z3950/agency/amend/am5.html
385 Old definition for schema
386 Odr_oid *schema; /* OPT */
391 Z_InternationalString *uri;
392 #define Z_Schema_oid 1
393 #define Z_Schema_uri 2
396 * resultCount parameter to Sort Response (Amendment 1).
397 http://lcweb.loc.gov/z3950/agency/amend/am1.html
399 Support for SRW 1.0 over HTTP. This is an optional feature and
400 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
403 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
404 on the same port. SRW SearchRetrieveRequests are mapped
405 to bend_init,bend_search,bend_fetch,bend_close.
407 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
409 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
410 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
412 ZOOM connections are SRW based if schem http is used for hostname
413 in connect, e.g. z = ZOOM_connection_new("http://myserver");
414 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
416 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
417 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
418 distance=n, order=true/false, relation=le, prox unit=word. If
419 n is omitted, distance 1 is used.
421 Fixed problem with C compiler include path in wrong order.
423 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
424 on Solaris. Patch from Ko van der Sloot.
426 New MARC decode API. All new functions operate on a yaz_marc_t
427 handle. The most important new functions are: yaz_marc_create,
428 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
429 decode and destroy respectively. Decoder can produce formats
430 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
431 include/yaz/marcdisp.h.
433 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
434 to UTF-8, UCS-32, wchar_t or Latin-1.
436 * Prototypes for yaz_iconv_-functions moved to separate header
437 include/yaz/yaz-iconv.h.
439 Make a few private functions 'static' in unix.c. This prevents
440 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
442 For ZOOM connection, the options targetImplementation{Id,Name,Version}
443 are set when Init Response is received.
445 New function ZOOM_connection_error_x similar to ZOOM_connection_error
446 but returns diagnostic set as well.
448 New function yaz_strerror which is a portable wrapper for
449 strerror/strerror_r/GetLastMessage.
451 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
452 is returned for MARC. If type is "oai", then OAI MARC is returned.
454 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
459 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
461 Fix bad race conditions on SIGTERM and terminate gracefully in
464 Move retrieval (data1) module to Zebra since nobody seems to be
467 Add GRS-1 render for ZOOM using same format as yaz-client.
471 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
473 Fix broken ESpec handling in data1 module.
475 SGML reader parses comments and makes them part of the data1 tree.
477 Added several type casts so that YAZ compiles as C++ code.
479 ZOOM didn't handle PDU encoding failures properly.
481 Added more Bib-1 diagnostics (approved extensions).
483 GNU configure: better check for iconv.
485 More portable use of accept, getpeername. Check for socklen_t. Use
486 int/size_t if socklen_t is not defined.
490 PQF parser rejects bad queries - including those with extra
491 characters in them. PQF parser used to silently ignore that.
492 Cleaner API for PQF added, which allows you to get detailed
493 error information for bad queries (see yaz/pquery.h).
495 Fixed bug in ZOOM_record_get for type "database".
497 Implemented mini iconv library supporting conversions between
498 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
500 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
504 Fixed ZOOM C record cache so that preferredRecordSyntax and
505 elementSetName is used to check for already fetched records.
509 Added three members in bend_initrequest structure to facilitate
510 character set negotiation.
512 Fixed a bug in frontend server that could cause indefinite
513 loops under rare conditions.
515 Revised character set utilities (charneg.h) so that encoding
516 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
518 For PQF, directive @term <type> sets term type for Scan/Search.
519 Here <type> is general, string, numeric, null. The term type
520 is inherited - just like @attr.
522 New call odr_set_charset that sets character set conversion for
523 international-strings on a ODR stream. Prototype is:
524 int odr_set_charset(ODR o, const char *to, const char *from);
525 The InternationalString is still represented as C string in YAZ
526 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
527 won't). On the protocol level, you can use any encoding.
529 Support for UNIX sockets in ZOOM.
531 Solaris recv sometimes returns errno == ENOENT. It is treated as
532 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
534 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
535 both client and server. Code by Morten Bøgeskov.
539 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
540 that they can be used directly from Visual Basic. You must recompile
541 your windows APP if you're using ZOOM.
543 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
544 Commands "lang" and "charset" sets language and character set respectively.
545 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
546 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
548 Attributes from multiple CCL fields may be OR'ed rather than merged
549 using directive "@field or". Fields are still merged by default -
550 equivalent to "@field merge".
552 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
555 Fixed bug in zget for parameter ExtendedServicesResponse.
561 Added PQF feature: '@attr type=value' may be written as '@type=value'.
563 Client displays USR.1:SearchResult-1 (hits per term).
565 Additional Search Info for search in Generic Frontend Server.
567 Fixed CCL parsing of "field=s".
569 WIN32 installer - using the excellent NSIS software from nullsoft.
571 Fixed CCL parsing of "field = - <number>".
573 Added function yaz_marc_decode that decodes MARC for line mode
574 display or XML (similar to that used by JZKit).
576 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
577 Z39.50. But ISO/ILL was, however.
579 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
580 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
582 http://lcweb.loc.gov/z3950/agency/amend/am2.html
583 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
587 New YAZ client features: Command completion and new commands:
588 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
589 Code provided by Jacob Poulsen.
591 New call oid_trav, that visits all registered OIDs via callback.
593 Function ZOOM_record_get now returns const char pointer rather than
594 void pointer. It saves a lot of type casts.
596 For YAZ client, command "auth" now allows you to set authentication
597 in IdPass style. It is enabled when three tokens are given - order
598 is user, group and password.
600 Fix memory leaks in MARC record handling for ZOOM.
602 New option for YAZ client, -k <kilobytes> that sets
603 maximum record size. Similar to -k option for generic frontend
604 server and yaz-ztest.
606 More fixes for scan. Non-zero stepSize handled. OID's fixes.
608 Prefix query parser reports "fail" when bad attribute set is given.
610 Fix in MARC decoder. Proximity logging. Fix for attribute set
611 in scan handler for server. Patches by Shigeru Ishida.
613 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
616 Configure option --with-openssl=<dir> now works when a directory is
617 specified. Patch provided by Morten Bøgeskov.
619 New option for YAZ client, -u <auth>, that sets authentication.
621 ZOOM fix: error information was sometimes "missing", since error
622 was cleared/reset too when it shouldn't.
624 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
628 Scan for ZOOM API. New object ZOOM_scanset. New functions
629 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
630 ZOOM_scanset_destroy.
632 New ZOOM function, ZOOM_connection_last_event, that returns type
633 of last event (such as "receive data", "send data", "apdu received",
636 New ZOOM option, schema, that specifies schema for retrieval.
638 New CCL feature. Qualifiers can be aliases for one or more
639 other qualifiers (if more than one is given, OR is used).
641 ZOOM uses named result sets if target supports it.
643 Two new YAZ client commands: . (dot, which sources a script of YAZ
644 client commands), and ! (to execute shell command.). Implemented
647 Working on Debian packages.
651 YAZ client enables named result sets only if target supports it.
653 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
655 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
656 with key="host" to get same result.
658 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
659 Function Z3950_resultset_record(s) returns references to records
660 "owned" by resultset. To become owner use Z3950_record_clone.
662 Function z_ext_record handles Extended Services. Thanks to
667 CCL Parser fix: ignore token comma when dealing with and-lists.
669 Documentation updates for COMSTACK.
671 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
672 Changed prototype Z3950_records. For some functions, int parameters
673 were changed to size_t.
675 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
678 New MARC decode/display function, marc_display_exl, which properly rejects
679 non-ISO2709 records. YAZ client uses it.
683 Fix bug: local attribute set wasn't set correctly in PQF strings.
687 * Old Z39.50 codecs no longer supported.
689 Added ZOOM C binding. See http://zoom.z3950.org/
691 Renamed states for COMSTACKs to avoid confusion with events.
693 Implemented cs_look and proper cs_rcvconnect.
695 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
697 Configure detects POSIX threads on OpenBSD.
699 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
700 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
702 When error is returned from present handler, non-surrogate diagnostic
703 is returned in present response (and fetch handler is no longer called).
705 * Minor adjustments to pquery parser (PQF). Token characters may be
706 escaped by using backslash (C-style).
708 PQF parser allows string attribute values to be specified. For @attr,
709 non-numeric characters after the equal-sign are treated as strings
710 (e.g. @attr 9=title).
712 CCL trunction character may be defined (@truncation in file)
714 * function zget_ExtendedServicesRequest sets waitAction to
715 waitIfPossible (was wait).
717 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
720 CCL operator names may be set in field definition files (CCL_bibset).
721 See ccl/bib1 for an example.
723 Fixes in ASN.1 compiler for C++ compatibility.
725 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
726 and "op_or" to avoid conflict with C++.
728 Fixed problem with GNU readline detection on Redhat 7.0.
730 Added step-size for Scan backend handler.
732 Fixed bug that made the frontend server crash when no attribute
733 set was specified for scan.
735 Front-end server automatically switches to original working directory
736 when installed as an NT service. Previously -w had to be specified to
739 Added extended attributes for retrieval module (data1), so that data1
740 records carry d1_readXML/SGML attributes. d1_read also supports
741 null-data rules ( <tag/>)
743 On UNIX when POSIX threads are available, a separate library libyazthread
744 is created. Programmers should link with that library and the yaz library
745 when using threads. The reason for the split was that some applications
746 on Linux, such as Apache, doesn't work well when using shared objects that
749 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
750 (or any frontend server) in SSL mode by specifying ssl: followed by
751 address. Only tested on UNIX.
753 Added feature for CCL module. Virtual structure s=al or s=ol generates
754 and-list and or-list respectively instead of phrase search.
758 * Added prefix "yaz_" for the functions log_init.., log_file.. and
759 log_mask_str. This was done to avoid name conflicts with other libraries
760 (such as other PHP extensions).
762 Added raw OID member for preferred record syntax (request_format_raw)
763 and returned record syntax (output_format_raw) for backend fetch method.
765 Config file yaz-config now accepts options so that it returns specific
766 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
768 Shared library support for UNIX using GNU libtool.
770 * Modified backend interface. Request/Response struct's replaced by
771 one read/write C struct. For example bend_fetchrequest and
772 bend_fetchresult have been replaced by single bend_fetch_rr struct.
773 Every handler - even search has to be registered in bend_init
774 handler. This means that the YAZ library no longer refers to
775 external functions and it makes it possible to make the whole
776 thing a single DLL/SO.
778 Added Segment handler for backend server.
780 Added Zmbol/Zebra administrative functions to YAZ client.
782 Threaded frontend server on UNIX (when POSIX Threads are available).
783 Starting the server with option -T enables multi-threading.
787 Added configure option --enable-comp/disable-comp to control use
788 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
789 located in sub directory asn.
791 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
792 in ${exec_prefix}/bin along with the other programs yaz-client and
795 GNU automake used to maintain makefiles.
799 Changed retrieval module so that we can load records with no abstract
800 syntax defined. Tagpaths in these records are fully composed of string
803 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
807 On UNIX, the generated makefile now supports a proper 'make install'.
808 The prefix can be set via GNU configure to set the install location
809 (default is /usr/local).
811 * YAZ programs client and ztest were renamed to yaz-client and
812 yaz-ztest to avoid conflicts when users install YAZ in "standard"
813 locations, such as /usr/bin,/usr/local/bin,etc.
815 * YAZ Header files were moved from include to include/yaz. YAZ Header
816 files are referred to as include <yaz/log.h> rather than <log.h>.
817 The YAZ include path (-I ..) is therefore the same as before. Programmers
818 should update their #include statements or use -Ipath/include/yaz
819 instead. The main motivation for doing this change is that YAZ header files
820 can be installed in "standard" locations /usr/include,/usr/local/include
821 without introducing conflicts, since ALL YAZ header files are stored
822 in subdirectory yaz (under /usr/include for example).
824 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
825 rather than project/workspace files. We switched because project files
826 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
829 Changed name of logging function, logf, to yaz_log, to prevent name
830 clash with some math-log functions. The YAZ header log.h defines logf
831 to yaz_log (#define) so there should be no incompatibilities by this
834 Added bend_start/bend_stop handlers for server. These handler are
835 called on start/stop of server. For windows they are called whenever
836 a service is started/stopped.
838 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
839 a fairly small ASN.1 compiler written in Tcl. The compiler is located
840 in util/yc.tcl. The auto-generated C code structures are, in a few
841 cases, incompatible with the old decoders. There are differences in the
842 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
843 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
844 The preprocessor variable ASN_COMPILED is defined when the compiled
845 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
846 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
847 wish to use the old encoders/decoders you can specify --disable-yc
850 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
851 version so that it supports both new - and old version of DB Update
853 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
854 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
855 change. The name parameter can be set to 0 in which no name is specified
856 for the construction. The macros odr_implicit and odr_explicit sets name
857 parameter to zero for the construction involved. New macros
858 odr_implicit_tag and odr_explicit_tag are similar to the others,
859 except that a name parameter is added. For programmers' that don't use
860 ODR they probably only need to change the call to z_APDU and z_External.
862 Added access control facility by interfacing the TCP wrapper library.
863 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
864 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
865 name of the daemon and enables the access control as specified in
866 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
868 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
869 den Dool <H.M.vdnDool@kub.nl>.
871 Added reference ID parameter to most functions in server API - refer
872 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
874 Changed name of ccl library to libccl.a (was ccl.a).
876 Fixed bug in decoder for Explain (Category TargetInfo).
878 Added support for GNU readline in client. Thanks to Jacob Poulsen
879 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
881 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
882 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
883 IMPLEMENTATION! This change was made to the development version before
884 the ZIG decided to retract the amendment. If any users MUST be
885 compatible with the original Update definition, PLEASE CONTACT US, and
886 we will include a separate definition corresponding to the old Update
887 ES. Note that because of the change to the ASN.1 of the
888 TaskPackageRecordStructure we cannot define a single structure that
889 will support both versions.
891 * Added const modifier to buffer parameter for some ODR/BER encoding
892 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
893 completeWAIS, odr_dumpBER.
895 Fixed bug in client.c which caused a crash when a scanResponse didn't
896 contain positionOfTerm.
898 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
899 * will cause an error in a client if a non-YAZ target sends both a
900 * list of Scan entries and non-surrogate diagnostics.
902 Retrieval module enhancements. Tag sets may be typed in the reference
903 to it. From the .abs-file the "tagset" directive takes a third optional
904 integer type for the tag set referenced. From a .tag-file the "include"
905 directive takes a third optional type as well. The old "type" directive
906 in the tag set itself is still recognized but acts as the default type
909 Backend interface change. Individual Scan terms returned from bend_scan
910 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
911 in include/backend.h.
913 Retrieval module enhancements. Multiple tag sets and attribute sets may
914 be specified in abstract syntax specs. Revised the error/warning for
915 logging messages reported by the retrieval module when reading the
918 Object Identifier system (oid_..) changed. The API is backwards
919 compatible but the oid-routines now allocates new OID's when needed.
920 Raw OID's may be specified in oid_getvalbyname.
922 YAZ now uses GNU configure to generate Makefile(s).
924 * Minor changes in some of the member names of DeleteResultSetRequest and
925 DeleteResultSetResponse. See include/proto.h.
927 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
928 and added member 'languages' in TargetInfo (which was missing).
930 Changed the way attribute sets are handled in the retrieval
931 module. These are now cached, just like the abstract syntaxes
934 Changed YAZ so that it links with compiled ASN.1.
936 Added Explain-schema definitions and mapping routines. The following
937 Explain categories have been implemented: AttributeDetails,
938 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
940 Fixed minor bug in Windows version of Server Library.
942 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
944 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
946 Added EXTERNAL: UNIverse Resource Report (non-standard).
948 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
949 ENUMERATED and SET OF.
951 * Added 'const' to some of the char pointer arguments for the
952 functions, data1_read_node, data1_getelementbytagname,
953 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
956 Fixed bug in data1_insert_taggeddata - the last_child member of
957 parent wasn't initialised.
959 * Changed data1_read_record and data1_read_node so that the supplied
960 "SGML"-buffer is read-only. In particular the resulting data1 - tree
961 doesn't refer to any parts of the "SGML"-buffer.
963 Fixed bug in server library (Windows version of statserv_remove).
965 * Changed code so that it compiles as C++. The type definition
966 of Odr_fun which is a member of Odr_arm was changed. The result is,
967 that an explicit typecast is needed for the fun pointer when
968 using Odr_arm - as in:
969 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
971 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
973 Implemented the new structured date and time definition as approved
974 by the ZIG. Added schemaId element to the specificTag in Espec-1
975 (also approved at the last ZIG). Thanks to RVDM.
977 Added some Object identifiers (RVDM).
979 Changed the Update Extended Service (RVDM).
981 Added command "refid" to client which specifies referenceId for
982 the following requests.
984 Implemented extended service handling for server. See ztest.c
985 for an example as well as backend.h. New handlers are registerd
988 * Changed interface for sort in server.
990 Added new members to statserv_options_block. It allows a server
991 to read options from another source than just the command line. Thanks
992 to Charles Woodfield.
994 * Changed definition of Z_Triple in file prt-grs.h - member boolean
995 renamed to zboolean. Some C++ compilers complained about the name.
997 Minor changes to gils.abs. Added index 's' (sort) on title
998 and date/time-last-modified.
1000 --- 1.4pl2 1998/1/30
1002 Fixed bug in server library regarding inetd mode (-i). This bug
1003 was introduced by release 1.4.
1005 --- 1.4pl1 1998/1/29
1007 Added sort facility in client and backend server interface.
1009 Fixed problem with dependencies in Makefile(s).
1011 Fixed bugs for encoders/decoders of extended services and
1014 Implemented sub-tree feature for schemas. Sub-trees are
1015 referenced in *.abs-files. See explain.abs for an example
1016 of the use of this feature.
1018 Modified bib1.att; local attributes for ANY didn't include
1019 ANY itself (only affects use of the retrieval module).
1021 Fixed bug in plain SGML reader in function data1_read_node:
1022 tags with prefix "var" was incorrectly interpreted as variants.
1024 Added feature "sub-schemas" to enable references to - and definitions
1025 of - group of elements.
1027 * Removed member parent from type data1_element (in data1.h).
1029 Implemented function odr_nullval() that returns the value of
1032 * Removed member num_children from data1_node (in data1.h).
1034 Made NT service interface part of the server library. The
1035 function statserv_main uses the NT service when required and
1036 calls the statserv_start / statserv_close routines.
1038 Routine zget_SearchRequest and zget_PresentRequest fills
1039 resultSetName/Id member with "default" instead of "Default".
1041 Fixed memory leak in server. Request queue member wasn't freed.
1043 Fixed nmem_exit so that memory is freed.
1047 Revised the CCL parser utility to be thread safe.
1049 Added function, oid_ent_to_oid, to replace the function
1050 oid_getoidbyent, which is not thread safe.
1052 * Added nmem_init and nmem_exit to initialize and release
1053 NMEM resources. Function nmem_init should be called once in the
1054 initial thread before NMEM/ODR is used. statserv.c and client.c
1055 have been changed accordingly. The change was necessary to make
1056 NMEM thread safe. The NMEM memory pool is shared amongst threads
1057 in a process. Unix-based applications will still work fine without
1060 Added NT Services interface for the the Z39.50 (statserv) Server.
1061 Refer to the ztest.c source on the usage.
1063 Windows 95/NT port using MSVC5.0. Project files are included in the
1066 * Defined new 'global' handle for the retrieval (data1) system. The
1067 new handled, data1_handle, describes the state of the data1 system.
1068 This handle is passed as first argument to virtually all
1069 data1 related routines. The functions data1_create and data1_destroy
1070 creates and destroys a data1 handle respectively.
1072 Added ODR encode stream member to all backend request structures
1073 init, search, scan etc. This stream should be used to allocate all
1074 memory used for the response when thread safe operation is needed.
1076 Changed the comstack utility, cs_addstr, to be thread safe. The
1077 returned hostname string returned by the function is now part the
1080 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
1081 function. The cs_straddr takes a COMSTACK handle as argument, so this
1082 function must be used after cs_create and before bind/connect.
1083 This function is thread safe.
1085 Moved test server to 'ztest' directory - generic server code still
1086 in 'server' directory.
1088 Made prefix query (pquery.c) utility thread safe.
1090 Added new function modifier YAZ_EXPORT to 'export' public DLL
1091 functions when using windows (see include/yconfig.h).
1093 Added definitions to the OID database (util/oid.c) (RVDM).
1095 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
1097 Added call to ccl_rpn_delete in client program.
1099 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
1100 release of RPN structure.
1102 Added support for C++, headers uses extern "C" for public definitions.
1103 With input from RVDM.
1105 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
1106 Thanks to Ronald van der Meer (RVDM).
1108 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
1110 Added support for private extensions to the OID database
1111 (oid_setprivateoids()). Thanks to RVDM.
1113 Added optional, physical ANY (key replication)
1115 Fixed null-reference problem in GRS-1 output filter.
1117 Proximity operator added to Prefix Query Format (PQF).
1119 In test client command "base" accepts multiple databases.
1121 Fixed bug in cs_close stack that caused trouble with WINSOCK.
1125 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1127 Smallish bug-fixes in the new encoders/decoders (explain).
1129 Bug fixed in DeleteRequest.
1131 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
1133 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1135 Added SOIF syntax (using private OID for now) to retrieval module and client.
1137 Added Update extended service.
1139 Added SearchResult-1 additional info structure.
1141 Added optional CCL (ISO8777) interpreter as separate module. Available
1144 --- 1.2 1996/6/10 (1st anniversary release)
1146 Added Summary record syntax. Lightly tested.
1148 Added OPAC record syntax. Untested.
1150 Added ResourceReport service encoders/decoders. Untested.
1152 Fixed bug in z_Unit - wrong tagging on unitSystem.
1154 Fixed bug in the DiagRecs decoder.
1156 Added options for max PDU size and session timeout to frontend-server.
1158 Added documentation of query-language parsers and other supporting utilities.
1160 [frontend-server] Added Attribute set to the bend_scanrequest API.
1162 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
1163 surrogate diagnostics were generated.
1165 [retrieval] Allow multiple local values for attribute.
1167 [retrieval] Allow multiple attributes per element in .abs files. index type.
1169 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
1171 --- 1.1pl2 1996/4/10
1173 Minor changes, mostly specific to Zebra's requirements (retrieval)
1177 Repaired bug in frontend server when running multiple listening
1178 endpoints in dynamic mode.
1180 z_External() now won't break if a known, ASN.1 value comes encapsulated
1181 in an octet-string. The value will pass through unmodified in an Odr_oct.
1183 Added a bit of code to the demo client to decode & display
1184 ASN.1-structured records represented in the octet-aligned branch of
1185 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
1187 Added z_ext_getentbyref() to the ASN module. Doc updated.
1189 * Completed the SCAN definition in the ASN module. This may break SCAN
1190 code based on older YAZ-versions at compile-time. The fix is easy -
1193 * Added 'displayTerm' and OtherInformation to the TermInfo structure
1194 under the SCAN definition. Remember to initialize this, server-people.
1196 Comstack should now support the WAIS protocol in TCP/IP mode. Note
1197 that this does not extend to ODR and ASN.
1199 Comstack allows insertion of established socket (primarily for
1200 inetd-operation of servers). Doc updated.
1202 Front-end server can now start from the inetd in TCP mode. Doc
1205 --- 1.0pl4 1996/1/24
1209 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
1210 the rank and record number.
1212 Adjustments to the frontend server.
1214 Fixed diagnostic BER dumper. It ignored the file argument.
1218 Various changes to retrieval module.
1220 Changed the union discriminators of the protocol files from enums to
1221 ints paired with #defines.
1223 *Changed oident.class to oident.oclass to avoid a reserved word in C++
1226 *Changed operator in the RPN structure to 'roperator', again to avoid a
1229 Fixed problems in Explain decoders/encoders.
1231 --- 1.0pl2 1995/12/6
1233 Memory bug in log module fixed.
1235 --- 1.0pl1 1995/12/5
1237 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1239 Bug in Explain DatabaseInfo module fixed.
1241 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1245 The shift to v1.0 signals that we now consider the *core* functionality
1246 of YAZ reasonably stable (the core being more or less equivalent to
1247 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1248 tested (Explain not at all - though that will happen soonish).
1250 Minor changes to code to support Windows port.
1252 Various minor changes after we're getting to use GRS-1 & co. more.
1254 Added Espec-1 format.
1256 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1257 of the protocol and it cannot be selected when encoding (maps into 'string'
1258 when decoding). Needed to talk to some servers.
1260 Demo client can request simple element set names.
1262 Added Diagnostic Format encoders/decoders.
1264 Added simple Close handling to frontend server (no hooks for resource
1265 reporting yet), and demonstration client.
1267 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1269 --- 1.0b3 1995/08/24
1271 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1272 handled incorrectly when records were requested in the searchResponse. This
1273 will only affect you if you use the frontend-server.
1275 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1276 Test-client will ask for and print GRS1. Ztest will return dummy records
1279 Added Explain encoders/decoders to the service-level API. Untested.
1281 Added Extended Services: Item Order encoders and decoders to the Service-
1282 level API. Untested. We could use a recent copy of the pertinent bits
1283 of the ILL protocol to add those bits.
1285 Added diagnostic format 1 encoders/decoders to the service-level API.
1288 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1289 odr_cons.c, which causes a more correct output.
1291 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1292 was always set to 0 when no records were requested in the searchRequest.
1294 * Added better external-handling. This shouldn't harm old code that
1295 *encodes* externals. It can break code that looks for a
1296 'single-ASN1-type' representation, since those types that are known
1297 are now decoded immediately. Look at the SUTRS sample code in
1298 seshigh.c and client.c. Documentation updated.
1300 Handling of structured records in bend_fetchresponse. Length -1 marks
1301 structured record, type is deduced from format field.
1303 --- 1.0b2 1995/06/27
1304 Fairly quick maintenance release to add SUTRS support.
1306 Fixed handling of SUTRS records in the demonstration client.
1308 * Added format field to the bend_fetchrequest and bend_fetchresponce
1309 structures of the backend API (frontend server). When the record is
1310 returned, the value of the format field is mapped to an OID. The
1311 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1312 of the record. The special value VAL_NONE in the bend_request means
1313 that no specific format was requested by the client. Documentation
1314 updated accordingly. Test server (ztest) will return a fixed dummy
1315 SUTRS record if your client requests SUTRS.
1317 Documentation updated accordingly.
1319 You can now set external libraries and RANLIB support in the top-level
1323 First public release.