1 Possible compatibility problems with earlier versions marked with '*'.
5 Another fix for decoding of XML packed records.
9 Fixes for Chunked encoding. White space not ignored after length spec.
11 Update NS and use default NS for SRW diagnostic elements.
15 Implement ZOOM_resultset_cache_reset which resets record cache.
17 Implement ZOOM_resultset_sort which sorts a result set.
19 Implement chunked HTTP transfer.
21 For SSL, use -lssl -lcrypto on systems that don't have pkg-config.
25 Added member 'schema' to bend_explain_rr structure so that backend
26 can specify explain record identifier. Defaults to Zeerex 2.0.
28 Fix encoding of OID's of form 1.0.X. Bug introduced in 2.0.11.
32 * SRW/SRU 1.1 updates: updated diagnostic in srw.h to use uri instead
35 Added init command for yaz-client which sends "extra" init request.
37 Fixed two bugs in OID codec - ber_oidc. Throw error when encoding/decoding
38 bad truncated OID. Fix decoding of OID X.Y... when X=2 and Y>39.
40 Fixed a bug in ASN.1 compiler that caused Type-1 Operator codec to fail.
42 Make ZOOM error code for "invalid query".
44 Fixed compilation for SSL which wasn't properly enabled for all platforms.
48 For yaz.m4, allow second argument for YAZ_INIT to hold minimal version of
51 * SRW/SRU 1.1 updates. Diagnostic code now a URI.
53 Added option -p <file> to make Generic Frontend Server to write PID file.
55 Added option -D to put Generic Frontend Server in background on its own.
57 Make ZOOM C recognize option "password". If unset, "pass" is used
58 (for backwards compatibility).
60 Fixed a bug in Generic Frontend Server that could make it crash if a
61 client sets characterSetNegotation bit, but didn't pass negotiation stuff
64 New YAZ client command, zversion, that sets Z39.50 version (1,2,3..).
65 Must be issued before open, in order to be in effect.
67 --- 2.0.9-6 2004/01/12 Debian/Windows
69 Make the SRU server more picky WRT unknown params, etc.
71 Bug fix: ZOOM scan response didn't return displayTerm - when present.
73 New YAZ client command, options, that sets Z39.50 options.
75 New utility functions yaz_init_opt_{encode,decode} to encode/decode Z39.50
76 options from a string of tokens (one token for each option bit).
78 Update SRW diagnostic code messages.
80 --- 2.0.9-5 2004/01/07 Debian/Windows
82 Handle user defined stylesheet for SRW/SRU.
84 --- 2.0.9-4 2004/01/06 Debian/Windows
86 Fix bug in decoding of Content-Length.
88 --- 2.0.9-3 2004/01/06 Debian/Windows
90 Fix a bug with decoding of XML packed records.
92 --- 2.0.9-2 2004/01/05 Debian only
94 Allow empty ODR (NMEM=0) for odr_oiddup and odr_getoidbystr.
96 Fix bug in SRW/SRU diagnostics decoding.
100 Fixed bug in Generic Frontend Server which could drop records exceeding
101 preferred message size. Reported and fixed by Irina Dijour.
103 Fixed calculation of package size for structured records in Generic
104 Frontend Server. Reported and fixed by Irina Dijour.
106 Fixed namespace for SRW/SRU diagnostics.
108 Fixed SEGV in yaz-client that occured for HTTP connection errors.
112 * SRW/SRU 1.1. Since the Namespace has changed for SRW/SRU, it means that
113 this version is incompatible with version 1.0 and older YAZ SRW/SRU
116 CQL changes to reflect recent changes to the specification:
117 * Documentation talks about context sets instead of index sets.
118 * Documentation talks about indexes instead of qualifiers.
119 * The CQL-to-PQF transformer's configuration file now uses
120 "index.set.name = <attributes>" instead of the old form
121 "qualifier.set.name = <attributes>". (Both forms are still
122 understood but the latter is deprecated.)
123 * CQL terms with no explicit index specified are now interpreted as
124 cql.serverChoice instead of srw.serverChoice (which of course
125 behaves exactly the same.)
129 MARC conversion can now generate ISO2709 output in another
130 character set. yaz-marcdump uses this facility if you invoke it
133 Added missing C decl macros for include/yaz/{soap.h,srw.h,cql.h}, so that
134 functions from there can be used from C++.
138 Frontend server now transfers memory from decoded packages to stream
141 NMEM now clears freed blocks with 'Y' (hex 59) to force bad memory
142 references to show up.
144 ZOOM-C now supports standard ZOOM option names as described in v1.4 of
145 the ZOOM Abstract API. The older names for the same options are still
146 also supported for the benefit of old applications.
148 ZOOM-C supports "implementationId" and "implementationVersion" options
149 to go along with "implementationName". These allow the user code to
150 specify identification strings to be sent to servers.
151 Add OID for the new ExtLite attribute set.
153 Add OIDs for NACSIS-CATP, FINMARC2000 and MARC21-fin record-syntaxes,
154 as requested/supplid by Ere Maijala <ere@atp.fi>
156 For generic frontend server, reverse the order of
157 "toolkit-supplied / application-supplied" strings sent as implementationId,
158 Name and Version. Also, remove the spaces around the slash. This brings
159 the GFS in line with the behaviour of ZOOM-C on the client side.
161 Add function ZOOM_scanset_display_term.
163 yaz-client shows scan displayTerm if present.
165 Utility yaz-iconv is now installed by default along with the man page
168 Extend configure check for OpenSSL to use pkg-config where available (such
171 Incorporate patch by Morten Bogeskov which allows a Unix file socket
172 server to specify uid/gid/mask for socket using the format
173 unix:[user=uid,][group=gid,][umask=mask,]file=path
174 If file= is omitted the existing format is assumed, e.g.
176 in which case the mask is 0666 (rw for everybody).
178 Major restructure of YAZ source. All source in libyaz is in src directory.
179 Programs in client (yaz-client), ztest (yaz-ztest), zoom (zoom programs),
180 util (utility programs such as ASN.1 compiler, yaz-marcdump).
182 Added man page for utility yaz-marcdump (used to be called marcdump).
183 yaz-marcdump is installed by 'make install'.
185 Fixed a memory leak in Generic Frontend Server that occurred when decoding
186 of incoming package failed.
188 Fixed a potential DOS attack vulnerability in COMSTACK/ODR.
190 Change prototype of odr_perror: add const to message string.
192 New function yaz_log_reopen which reopens log file (for log rotate, etc.)
194 * Blocking parameter for COMSTACK cs_create is now a bit mask rather
195 than a blocking flag. Bit 0 is set for blocking, reset for non-blocking.
196 Bit 1 is set if cs_addrstr should avoid DNS lookup; reset for full
197 DNS lookup. There should not be any compatibility problems with this
198 assuming that blocking=1 or 0 is used.
200 Fix bad reference in UNIX comstack in function cs_addrstr.
202 Fix for compilation on AIX.
204 The generic front-end server (server/seshigh.c) now supports returning
205 Init diagnostics to the client in User-information-field, in
206 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
211 Allow any CQL relation (not just all,any,exact,scr).
213 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
214 that features the same UI.
216 Implemented command update0 in YAZ client which is equivalent to
217 update but uses old of Ext Update ASN.1.
219 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
220 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
221 Previously no OID was used for this info.
223 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
224 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
225 returns 'malformed search term' otherwise.
227 SortResponse member resultCount now set to NULL in sort handler of
230 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
233 Add three new utility functions for translating OIDs between various
234 formats -- symbolic name such as "Usmarc", minus-1-terminated int
235 arrays and dotted strings such as "1.2.840.10003.9.5.1":
236 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
237 char *oid_to_dotstring(const int *oid, char *oidbuf);
238 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
240 Reverted modifications for ES Update definition for z_IU0Update
241 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
242 is back to YAZ 2.0.2.
244 String value attributes for CCL parser.
246 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
247 which their FirstSearch server returns in Init responses, sometimes
248 carrying useful diagnostic information when Init fails. This has the
249 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
250 "z39.50/oclcui.asn", where its definition is somewhat different from
251 what OCLC document on their web-site, as required to interoperate with
254 Support for anonymous authentication in yaz-client. Use the command
257 * Fix the OID of the Index Data-local "admin" Extended Service from
258 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
259 the 1000, which indicates a locally-defined OID, was a mistake.
263 Fix CCL directive @case handling so that it affects string match for
264 both CCL keywords and qualifiers.
266 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
267 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
268 Decoder has been updated with ASN.1 changes as listed in
269 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
270 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
271 z_IUUpdate, remains unchanged.
273 ZOOM_record_get may now return a record in a specific character set.
274 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
275 "from" is the character set of record as returned by target. "to" is
276 the character set to be returned. If omitted, "to" is UTF-8.
278 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
280 New ODR utility, odr_getelement, which returns name of element for
281 which encoding/decoding failed.
283 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
284 in cases where a required element was omitted.
286 Bug fix: some MARC8 sequences were not converted.
288 New ZOOM option "step" which specifies number of records to be
289 retrieved in one chunk. Used in conjunction with "start" and "count".
291 SRW support for yaz-client. Use scheme http: to use it, e.g.
294 yaz-client no longer does (un)intelligent character set conversions
295 by default. Can be enabled with charset and marc_charset commands.
297 xmalloc trace fix for 64-bit systems such as DEC alpha.
299 Solaris 2.6 compile fix.
301 New function, cql_strerror() translates SRW error codes, as returned
302 by cql_transform_error(), into human-readable English strings. Used
303 in yaz-client diagnostics when appropriate.
305 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
306 converts it into a type-1 query which is sent to the server. This
307 makes CQL available for use with all Z-servers, as opposed to the tiny
308 minority that can handle CQL queries themselves.
312 New Debian package layout similar to the Redhat Package layout.
314 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
315 and search result respectively.
319 Redhat package is now several packages: libyaz (runtime libraries),
320 libyaz-devel (development and documentation, and yaz (utility programs).
321 Package spec file by Morten Bøgeskov.
323 New member 'schema' in struct bend_fetch_rr which the name of requested
324 schema (SRW/SRU) for record (or NULL if none was given). The fetch
325 handler MAY set this to reflect the schema of the returned record.
327 New member 'display_term' in struct scan_entry. GFS now sets member entries
328 and allocates scan entries to be filled by user scan handler. In previous
329 version, entries member was allocated by the scan handler. That still works,
330 but the GFS will ignore member display_term - assuming it was NOT set by
331 the handler. The fact that the GFS now allocates the entries both allows
332 for new members and makes a scan handler easier to write.
334 Fix CQL lex buffer overflow.
336 SRW/SRU recordPacking. For SRW default recordPacking is string. For
337 SRU default recordPacking is string.
339 SRU protocol support for frontend server.
341 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
343 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
345 Added scan for the ZOOM shell (zoomsh).
349 * String Identifers for Schemas (Amendment 5).
350 http://lcweb.loc.gov/z3950/agency/amend/am5.html
351 Old definition for schema
352 Odr_oid *schema; /* OPT */
357 Z_InternationalString *uri;
358 #define Z_Schema_oid 1
359 #define Z_Schema_uri 2
362 * resultCount parameter to Sort Response (Amendment 1).
363 http://lcweb.loc.gov/z3950/agency/amend/am1.html
365 Support for SRW 1.0 over HTTP. This is an optional feature and
366 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
369 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
370 on the same port. SRW SearchRetrieveRequests are mapped
371 to bend_init,bend_search,bend_fetch,bend_close.
373 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
375 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
376 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
378 ZOOM connections are SRW based if schem http is used for hostname
379 in connect, e.g. z = ZOOM_connection_new("http://myserver");
380 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
382 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
383 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
384 distance=n, order=true/false, relation=le, prox unit=word. If
385 n is omitted, distance 1 is used.
387 Fixed problem with C compiler include path in wrong order.
389 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
390 on Solaris. Patch from Ko van der Sloot.
392 New MARC decode API. All new functions operate on a yaz_marc_t
393 handle. The most important new functions are: yaz_marc_create,
394 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
395 decode and destroy respectively. Decoder can produce formats
396 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
397 include/yaz/marcdisp.h.
399 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
400 to UTF-8, UCS-32, wchar_t or Latin-1.
402 * Prototypes for yaz_iconv_-functions moved to separate header
403 include/yaz/yaz-iconv.h.
405 Make a few private functions 'static' in unix.c. This prevents
406 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
408 For ZOOM connection, the options targetImplementation{Id,Name,Version}
409 are set when Init Response is received.
411 New function ZOOM_connection_error_x similar to ZOOM_connection_error
412 but returns diagnostic set as well.
414 New function yaz_strerror which is a portable wrapper for
415 strerror/strerror_r/GetLastMessage.
417 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
418 is returned for MARC. If type is "oai", then OAI MARC is returned.
420 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
425 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
427 Fix bad race conditions on SIGTERM and terminate gracefully in
430 Move retrieval (data1) module to Zebra since nobody seems to be
433 Add GRS-1 render for ZOOM using same format as yaz-client.
437 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
439 Fix broken ESpec handling in data1 module.
441 SGML reader parses comments and makes them part of the data1 tree.
443 Added several type casts so that YAZ compiles as C++ code.
445 ZOOM didn't handle PDU encoding failures properly.
447 Added more Bib-1 diagnostics (approved extensions).
449 GNU configure: better check for iconv.
451 More portable use of accept, getpeername. Check for socklen_t. Use
452 int/size_t if socklen_t is not defined.
456 PQF parser rejects bad queries - including those with extra
457 characters in them. PQF parser used to silently ignore that.
458 Cleaner API for PQF added, which allows you to get detailed
459 error information for bad queries (see yaz/pquery.h).
461 Fixed bug in ZOOM_record_get for type "database".
463 Implemented mini iconv library supporting conversions between
464 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
466 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
470 Fixed ZOOM C record cache so that preferredRecordSyntax and
471 elementSetName is used to check for already fetched records.
475 Added three members in bend_initrequest structure to facilitate
476 character set negotiation.
478 Fixed a bug in frontend server that could cause indefinite
479 loops under rare conditions.
481 Revised character set utilities (charneg.h) so that encoding
482 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
484 For PQF, directive @term <type> sets term type for Scan/Search.
485 Here <type> is general, string, numeric, null. The term type
486 is inherited - just like @attr.
488 New call odr_set_charset that sets character set conversion for
489 international-strings on a ODR stream. Prototype is:
490 int odr_set_charset(ODR o, const char *to, const char *from);
491 The InternationalString is still represented as C string in YAZ
492 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
493 won't). On the protocol level, you can use any encoding.
495 Support for UNIX sockets in ZOOM.
497 Solaris recv sometimes returns errno == ENOENT. It is treated as
498 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
500 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
501 both client and server. Code by Morten Bøgeskov.
505 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
506 that they can be used directly from Visual Basic. You must recompile
507 your windows APP if you're using ZOOM.
509 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
510 Commands "lang" and "charset" sets language and character set respectively.
511 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
512 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
514 Attributes from multiple CCL fields may be OR'ed rather than merged
515 using directive "@field or". Fields are still merged by default -
516 equivalent to "@field merge".
518 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
521 Fixed bug in zget for parameter ExtendedServicesResponse.
527 Added PQF feature: '@attr type=value' may be written as '@type=value'.
529 Client displays USR.1:SearchResult-1 (hits per term).
531 Additional Search Info for search in Generic Frontend Server.
533 Fixed CCL parsing of "field=s".
535 WIN32 installer - using the excellent NSIS software from nullsoft.
537 Fixed CCL parsing of "field = - <number>".
539 Added function yaz_marc_decode that decodes MARC for line mode
540 display or XML (similar to that used by JZKit).
542 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
543 Z39.50. But ISO/ILL was, however.
545 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
546 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
548 http://lcweb.loc.gov/z3950/agency/amend/am2.html
549 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
553 New YAZ client features: Command completion and new commands:
554 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
555 Code provided by Jacob Poulsen.
557 New call oid_trav, that visits all registered OIDs via callback.
559 Function ZOOM_record_get now returns const char pointer rather than
560 void pointer. It saves a lot of type casts.
562 For YAZ client, command "auth" now allows you to set authentication
563 in IdPass style. It is enabled when three tokens are given - order
564 is user, group and password.
566 Fix memory leaks in MARC record handling for ZOOM.
568 New option for YAZ client, -k <kilobytes> that sets
569 maximum record size. Similar to -k option for generic frontend
570 server and yaz-ztest.
572 More fixes for scan. Non-zero stepSize handled. OID's fixes.
574 Prefix query parser reports "fail" when bad attribute set is given.
576 Fix in MARC decoder. Proximity logging. Fix for attribute set
577 in scan handler for server. Patches by Shigeru Ishida.
579 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
582 Configure option --with-openssl=<dir> now works when a directory is
583 specified. Patch provided by Morten Bøgeskov.
585 New option for YAZ client, -u <auth>, that sets authentication.
587 ZOOM fix: error information was sometimes "missing", since error
588 was cleared/reset too when it shouldn't.
590 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
594 Scan for ZOOM API. New object ZOOM_scanset. New functions
595 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
596 ZOOM_scanset_destroy.
598 New ZOOM function, ZOOM_connection_last_event, that returns type
599 of last event (such as "receive data", "send data", "apdu received",
602 New ZOOM option, schema, that specifies schema for retrieval.
604 New CCL feature. Qualifiers can be aliases for one or more
605 other qualifiers (if more than one is given, OR is used).
607 ZOOM uses named result sets if target supports it.
609 Two new YAZ client commands: . (dot, which sources a script of YAZ
610 client commands), and ! (to execute shell command.). Implemented
613 Working on Debian packages.
617 YAZ client enables named result sets only if target supports it.
619 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
621 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
622 with key="host" to get same result.
624 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
625 Function Z3950_resultset_record(s) returns references to records
626 "owned" by resultset. To become owner use Z3950_record_clone.
628 Function z_ext_record handles Extended Services. Thanks to
633 CCL Parser fix: ignore token comma when dealing with and-lists.
635 Documentation updates for COMSTACK.
637 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
638 Changed prototype Z3950_records. For some functions, int parameters
639 were changed to size_t.
641 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
644 New MARC decode/display function, marc_display_exl, which properly rejects
645 non-ISO2709 records. YAZ client uses it.
649 Fix bug: local attribute set wasn't set correctly in PQF strings.
653 * Old Z39.50 codecs no longer supported.
655 Added ZOOM C binding. See http://zoom.z3950.org/
657 Renamed states for COMSTACKs to avoid confusion with events.
659 Implemented cs_look and proper cs_rcvconnect.
661 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
663 Configure detects POSIX threads on OpenBSD.
665 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
666 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
668 When error is returned from present handler, non-surrogate diagnostic
669 is returned in present response (and fetch handler is no longer called).
671 * Minor adjustments to pquery parser (PQF). Token characters may be
672 escaped by using backslash (C-style).
674 PQF parser allows string attribute values to be specified. For @attr,
675 non-numeric characters after the equal-sign are treated as strings
676 (e.g. @attr 9=title).
678 CCL trunction character may be defined (@truncation in file)
680 * function zget_ExtendedServicesRequest sets waitAction to
681 waitIfPossible (was wait).
683 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
686 CCL operator names may be set in field definition files (CCL_bibset).
687 See ccl/bib1 for an example.
689 Fixes in ASN.1 compiler for C++ compatibility.
691 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
692 and "op_or" to avoid conflict with C++.
694 Fixed problem with GNU readline detection on Redhat 7.0.
696 Added step-size for Scan backend handler.
698 Fixed bug that made the frontend server crash when no attribute
699 set was specified for scan.
701 Front-end server automatically switches to original working directory
702 when installed as an NT service. Previously -w had to be specified to
705 Added extended attributes for retrieval module (data1), so that data1
706 records carry d1_readXML/SGML attributes. d1_read also supports
707 null-data rules ( <tag/>)
709 On UNIX when POSIX threads are available, a separate library libyazthread
710 is created. Programmers should link with that library and the yaz library
711 when using threads. The reason for the split was that some applications
712 on Linux, such as Apache, doesn't work well when using shared objects that
715 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
716 (or any frontend server) in SSL mode by specifying ssl: followed by
717 address. Only tested on UNIX.
719 Added feature for CCL module. Virtual structure s=al or s=ol generates
720 and-list and or-list respectively instead of phrase search.
724 * Added prefix "yaz_" for the functions log_init.., log_file.. and
725 log_mask_str. This was done to avoid name conflicts with other libraries
726 (such as other PHP extensions).
728 Added raw OID member for preferred record syntax (request_format_raw)
729 and returned record syntax (output_format_raw) for backend fetch method.
731 Config file yaz-config now accepts options so that it returns specific
732 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
734 Shared library support for UNIX using GNU libtool.
736 * Modified backend interface. Request/Response struct's replaced by
737 one read/write C struct. For example bend_fetchrequest and
738 bend_fetchresult have been replaced by single bend_fetch_rr struct.
739 Every handler - even search has to be registered in bend_init
740 handler. This means that the YAZ library no longer refers to
741 external functions and it makes it possible to make the whole
742 thing a single DLL/SO.
744 Added Segment handler for backend server.
746 Added Zmbol/Zebra administrative functions to YAZ client.
748 Threaded frontend server on UNIX (when POSIX Threads are available).
749 Starting the server with option -T enables multi-threading.
753 Added configure option --enable-comp/disable-comp to control use
754 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
755 located in sub directory asn.
757 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
758 in ${exec_prefix}/bin along with the other programs yaz-client and
761 GNU automake used to maintain makefiles.
765 Changed retrieval module so that we can load records with no abstract
766 syntax defined. Tagpaths in these records are fully composed of string
769 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
773 On UNIX, the generated makefile now supports a proper 'make install'.
774 The prefix can be set via GNU configure to set the install location
775 (default is /usr/local).
777 * YAZ programs client and ztest were renamed to yaz-client and
778 yaz-ztest to avoid conflicts when users install YAZ in "standard"
779 locations, such as /usr/bin,/usr/local/bin,etc.
781 * YAZ Header files were moved from include to include/yaz. YAZ Header
782 files are referred to as include <yaz/log.h> rather than <log.h>.
783 The YAZ include path (-I ..) is therefore the same as before. Programmers
784 should update their #include statements or use -Ipath/include/yaz
785 instead. The main motivation for doing this change is that YAZ header files
786 can be installed in "standard" locations /usr/include,/usr/local/include
787 without introducing conflicts, since ALL YAZ header files are stored
788 in subdirectory yaz (under /usr/include for example).
790 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
791 rather than project/workspace files. We switched because project files
792 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
795 Changed name of logging function, logf, to yaz_log, to prevent name
796 clash with some math-log functions. The YAZ header log.h defines logf
797 to yaz_log (#define) so there should be no incompatibilities by this
800 Added bend_start/bend_stop handlers for server. These handler are
801 called on start/stop of server. For windows they are called whenever
802 a service is started/stopped.
804 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
805 a fairly small ASN.1 compiler written in Tcl. The compiler is located
806 in util/yc.tcl. The auto-generated C code structures are, in a few
807 cases, incompatible with the old decoders. There are differences in the
808 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
809 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
810 The preprocessor variable ASN_COMPILED is defined when the compiled
811 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
812 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
813 wish to use the old encoders/decoders you can specify --disable-yc
816 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
817 version so that it supports both new - and old version of DB Update
819 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
820 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
821 change. The name parameter can be set to 0 in which no name is specified
822 for the construction. The macros odr_implicit and odr_explicit sets name
823 parameter to zero for the construction involved. New macros
824 odr_implicit_tag and odr_explicit_tag are similar to the others,
825 except that a name parameter is added. For programmers' that don't use
826 ODR they probably only need to change the call to z_APDU and z_External.
828 Added access control facility by interfacing the TCP wrapper library.
829 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
830 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
831 name of the daemon and enables the access control as specified in
832 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
834 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
835 den Dool <H.M.vdnDool@kub.nl>.
837 Added reference ID parameter to most functions in server API - refer
838 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
840 Changed name of ccl library to libccl.a (was ccl.a).
842 Fixed bug in decoder for Explain (Category TargetInfo).
844 Added support for GNU readline in client. Thanks to Jacob Poulsen
845 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
847 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
848 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
849 IMPLEMENTATION! This change was made to the development version before
850 the ZIG decided to retract the amendment. If any users MUST be
851 compatible with the original Update definition, PLEASE CONTACT US, and
852 we will include a separate definition corresponding to the old Update
853 ES. Note that because of the change to the ASN.1 of the
854 TaskPackageRecordStructure we cannot define a single structure that
855 will support both versions.
857 * Added const modifier to buffer parameter for some ODR/BER encoding
858 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
859 completeWAIS, odr_dumpBER.
861 Fixed bug in client.c which caused a crash when a scanResponse didn't
862 contain positionOfTerm.
864 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
865 * will cause an error in a client if a non-YAZ target sends both a
866 * list of Scan entries and non-surrogate diagnostics.
868 Retrieval module enhancements. Tag sets may be typed in the reference
869 to it. From the .abs-file the "tagset" directive takes a third optional
870 integer type for the tag set referenced. From a .tag-file the "include"
871 directive takes a third optional type as well. The old "type" directive
872 in the tag set itself is still recognized but acts as the default type
875 Backend interface change. Individual Scan terms returned from bend_scan
876 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
877 in include/backend.h.
879 Retrieval module enhancements. Multiple tag sets and attribute sets may
880 be specified in abstract syntax specs. Revised the error/warning for
881 logging messages reported by the retrieval module when reading the
884 Object Identifier system (oid_..) changed. The API is backwards
885 compatible but the oid-routines now allocates new OID's when needed.
886 Raw OID's may be specified in oid_getvalbyname.
888 YAZ now uses GNU configure to generate Makefile(s).
890 * Minor changes in some of the member names of DeleteResultSetRequest and
891 DeleteResultSetResponse. See include/proto.h.
893 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
894 and added member 'languages' in TargetInfo (which was missing).
896 Changed the way attribute sets are handled in the retrieval
897 module. These are now cached, just like the abstract syntaxes
900 Changed YAZ so that it links with compiled ASN.1.
902 Added Explain-schema definitions and mapping routines. The following
903 Explain categories have been implemented: AttributeDetails,
904 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
906 Fixed minor bug in Windows version of Server Library.
908 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
910 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
912 Added EXTERNAL: UNIverse Resource Report (non-standard).
914 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
915 ENUMERATED and SET OF.
917 * Added 'const' to some of the char pointer arguments for the
918 functions, data1_read_node, data1_getelementbytagname,
919 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
922 Fixed bug in data1_insert_taggeddata - the last_child member of
923 parent wasn't initialised.
925 * Changed data1_read_record and data1_read_node so that the supplied
926 "SGML"-buffer is read-only. In particular the resulting data1 - tree
927 doesn't refer to any parts of the "SGML"-buffer.
929 Fixed bug in server library (Windows version of statserv_remove).
931 * Changed code so that it compiles as C++. The type definition
932 of Odr_fun which is a member of Odr_arm was changed. The result is,
933 that an explicit typecast is needed for the fun pointer when
934 using Odr_arm - as in:
935 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
937 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
939 Implemented the new structured date and time definition as approved
940 by the ZIG. Added schemaId element to the specificTag in Espec-1
941 (also approved at the last ZIG). Thanks to RVDM.
943 Added some Object identifiers (RVDM).
945 Changed the Update Extended Service (RVDM).
947 Added command "refid" to client which specifies referenceId for
948 the following requests.
950 Implemented extended service handling for server. See ztest.c
951 for an example as well as backend.h. New handlers are registerd
954 * Changed interface for sort in server.
956 Added new members to statserv_options_block. It allows a server
957 to read options from another source than just the command line. Thanks
958 to Charles Woodfield.
960 * Changed definition of Z_Triple in file prt-grs.h - member boolean
961 renamed to zboolean. Some C++ compilers complained about the name.
963 Minor changes to gils.abs. Added index 's' (sort) on title
964 and date/time-last-modified.
968 Fixed bug in server library regarding inetd mode (-i). This bug
969 was introduced by release 1.4.
973 Added sort facility in client and backend server interface.
975 Fixed problem with dependencies in Makefile(s).
977 Fixed bugs for encoders/decoders of extended services and
980 Implemented sub-tree feature for schemas. Sub-trees are
981 referenced in *.abs-files. See explain.abs for an example
982 of the use of this feature.
984 Modified bib1.att; local attributes for ANY didn't include
985 ANY itself (only affects use of the retrieval module).
987 Fixed bug in plain SGML reader in function data1_read_node:
988 tags with prefix "var" was incorrectly interpreted as variants.
990 Added feature "sub-schemas" to enable references to - and definitions
991 of - group of elements.
993 * Removed member parent from type data1_element (in data1.h).
995 Implemented function odr_nullval() that returns the value of
998 * Removed member num_children from data1_node (in data1.h).
1000 Made NT service interface part of the server library. The
1001 function statserv_main uses the NT service when required and
1002 calls the statserv_start / statserv_close routines.
1004 Routine zget_SearchRequest and zget_PresentRequest fills
1005 resultSetName/Id member with "default" instead of "Default".
1007 Fixed memory leak in server. Request queue member wasn't freed.
1009 Fixed nmem_exit so that memory is freed.
1013 Revised the CCL parser utility to be thread safe.
1015 Added function, oid_ent_to_oid, to replace the function
1016 oid_getoidbyent, which is not thread safe.
1018 * Added nmem_init and nmem_exit to initialize and release
1019 NMEM resources. Function nmem_init should be called once in the
1020 initial thread before NMEM/ODR is used. statserv.c and client.c
1021 have been changed accordingly. The change was necessary to make
1022 NMEM thread safe. The NMEM memory pool is shared amongst threads
1023 in a process. Unix-based applications will still work fine without
1026 Added NT Services interface for the the Z39.50 (statserv) Server.
1027 Refer to the ztest.c source on the usage.
1029 Windows 95/NT port using MSVC5.0. Project files are included in the
1032 * Defined new 'global' handle for the retrieval (data1) system. The
1033 new handled, data1_handle, describes the state of the data1 system.
1034 This handle is passed as first argument to virtually all
1035 data1 related routines. The functions data1_create and data1_destroy
1036 creates and destroys a data1 handle respectively.
1038 Added ODR encode stream member to all backend request structures
1039 init, search, scan etc. This stream should be used to allocate all
1040 memory used for the response when thread safe operation is needed.
1042 Changed the comstack utility, cs_addstr, to be thread safe. The
1043 returned hostname string returned by the function is now part the
1046 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
1047 function. The cs_straddr takes a COMSTACK handle as argument, so this
1048 function must be used after cs_create and before bind/connect.
1049 This function is thread safe.
1051 Moved test server to 'ztest' directory - generic server code still
1052 in 'server' directory.
1054 Made prefix query (pquery.c) utility thread safe.
1056 Added new function modifier YAZ_EXPORT to 'export' public DLL
1057 functions when using windows (see include/yconfig.h).
1059 Added definitions to the OID database (util/oid.c) (RVDM).
1061 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
1063 Added call to ccl_rpn_delete in client program.
1065 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
1066 release of RPN structure.
1068 Added support for C++, headers uses extern "C" for public definitions.
1069 With input from RVDM.
1071 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
1072 Thanks to Ronald van der Meer (RVDM).
1074 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
1076 Added support for private extensions to the OID database
1077 (oid_setprivateoids()). Thanks to RVDM.
1079 Added optional, physical ANY (key replication)
1081 Fixed null-reference problem in GRS-1 output filter.
1083 Proximity operator added to Prefix Query Format (PQF).
1085 In test client command "base" accepts multiple databases.
1087 Fixed bug in cs_close stack that caused trouble with WINSOCK.
1091 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1093 Smallish bug-fixes in the new encoders/decoders (explain).
1095 Bug fixed in DeleteRequest.
1097 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
1099 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1101 Added SOIF syntax (using private OID for now) to retrieval module and client.
1103 Added Update extended service.
1105 Added SearchResult-1 additional info structure.
1107 Added optional CCL (ISO8777) interpreter as separate module. Available
1110 --- 1.2 1996/6/10 (1st anniversary release)
1112 Added Summary record syntax. Lightly tested.
1114 Added OPAC record syntax. Untested.
1116 Added ResourceReport service encoders/decoders. Untested.
1118 Fixed bug in z_Unit - wrong tagging on unitSystem.
1120 Fixed bug in the DiagRecs decoder.
1122 Added options for max PDU size and session timeout to frontend-server.
1124 Added documentation of query-language parsers and other supporting utilities.
1126 [frontend-server] Added Attribute set to the bend_scanrequest API.
1128 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
1129 surrogate diagnostics were generated.
1131 [retrieval] Allow multiple local values for attribute.
1133 [retrieval] Allow multiple attributes per element in .abs files. index type.
1135 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
1137 --- 1.1pl2 1996/4/10
1139 Minor changes, mostly specific to Zebra's requirements (retrieval)
1143 Repaired bug in frontend server when running multiple listening
1144 endpoints in dynamic mode.
1146 z_External() now won't break if a known, ASN.1 value comes encapsulated
1147 in an octet-string. The value will pass through unmodified in an Odr_oct.
1149 Added a bit of code to the demo client to decode & display
1150 ASN.1-structured records represented in the octet-aligned branch of
1151 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
1153 Added z_ext_getentbyref() to the ASN module. Doc updated.
1155 * Completed the SCAN definition in the ASN module. This may break SCAN
1156 code based on older YAZ-versions at compile-time. The fix is easy -
1159 * Added 'displayTerm' and OtherInformation to the TermInfo structure
1160 under the SCAN definition. Remember to initialize this, server-people.
1162 Comstack should now support the WAIS protocol in TCP/IP mode. Note
1163 that this does not extend to ODR and ASN.
1165 Comstack allows insertion of established socket (primarily for
1166 inetd-operation of servers). Doc updated.
1168 Front-end server can now start from the inetd in TCP mode. Doc
1171 --- 1.0pl4 1996/1/24
1175 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
1176 the rank and record number.
1178 Adjustments to the frontend server.
1180 Fixed diagnostic BER dumper. It ignored the file argument.
1184 Various changes to retrieval module.
1186 Changed the union discriminators of the protocol files from enums to
1187 ints paired with #defines.
1189 *Changed oident.class to oident.oclass to avoid a reserved word in C++
1192 *Changed operator in the RPN structure to 'roperator', again to avoid a
1195 Fixed problems in Explain decoders/encoders.
1197 --- 1.0pl2 1995/12/6
1199 Memory bug in log module fixed.
1201 --- 1.0pl1 1995/12/5
1203 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1205 Bug in Explain DatabaseInfo module fixed.
1207 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1211 The shift to v1.0 signals that we now consider the *core* functionality
1212 of YAZ reasonably stable (the core being more or less equivalent to
1213 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1214 tested (Explain not at all - though that will happen soonish).
1216 Minor changes to code to support Windows port.
1218 Various minor changes after we're getting to use GRS-1 & co. more.
1220 Added Espec-1 format.
1222 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1223 of the protocol and it cannot be selected when encoding (maps into 'string'
1224 when decoding). Needed to talk to some servers.
1226 Demo client can request simple element set names.
1228 Added Diagnostic Format encoders/decoders.
1230 Added simple Close handling to frontend server (no hooks for resource
1231 reporting yet), and demonstration client.
1233 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1235 --- 1.0b3 1995/08/24
1237 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1238 handled incorrectly when records were requested in the searchResponse. This
1239 will only affect you if you use the frontend-server.
1241 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1242 Test-client will ask for and print GRS1. Ztest will return dummy records
1245 Added Explain encoders/decoders to the service-level API. Untested.
1247 Added Extended Services: Item Order encoders and decoders to the Service-
1248 level API. Untested. We could use a recent copy of the pertinent bits
1249 of the ILL protocol to add those bits.
1251 Added diagnostic format 1 encoders/decoders to the service-level API.
1254 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1255 odr_cons.c, which causes a more correct output.
1257 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1258 was always set to 0 when no records were requested in the searchRequest.
1260 * Added better external-handling. This shouldn't harm old code that
1261 *encodes* externals. It can break code that looks for a
1262 'single-ASN1-type' representation, since those types that are known
1263 are now decoded immediately. Look at the SUTRS sample code in
1264 seshigh.c and client.c. Documentation updated.
1266 Handling of structured records in bend_fetchresponse. Length -1 marks
1267 structured record, type is deduced from format field.
1269 --- 1.0b2 1995/06/27
1270 Fairly quick maintenance release to add SUTRS support.
1272 Fixed handling of SUTRS records in the demonstration client.
1274 * Added format field to the bend_fetchrequest and bend_fetchresponce
1275 structures of the backend API (frontend server). When the record is
1276 returned, the value of the format field is mapped to an OID. The
1277 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1278 of the record. The special value VAL_NONE in the bend_request means
1279 that no specific format was requested by the client. Documentation
1280 updated accordingly. Test server (ztest) will return a fixed dummy
1281 SUTRS record if your client requests SUTRS.
1283 Documentation updated accordingly.
1285 You can now set external libraries and RANLIB support in the top-level
1289 First public release.