1 Possible compatibility problems with earlier versions marked with '*'.
3 Implement ZOOM_resultset_cache_reset which resets record cache.
5 Implement ZOOM_resultset_sort which sorts a result set.
7 Implement chunked HTTP transfer.
9 For SSL, use -lssl -lcrypto on systems that don't have pkg-config.
13 Added member 'schema' to bend_explain_rr structure so that backend
14 can specify explain record identifier. Defaults to Zeerex 2.0.
16 Fix encoding of OID's of form 1.0.X. Bug introduced in 2.0.11.
20 * SRW/SRU 1.1 updates: updated diagnostic in srw.h to use uri instead
23 Added init command for yaz-client which sends "extra" init request.
25 Fixed two bugs in OID codec - ber_oidc. Throw error when encoding/decoding
26 bad truncated OID. Fix decoding of OID X.Y... when X=2 and Y>39.
28 Fixed a bug in ASN.1 compiler that caused Type-1 Operator codec to fail.
30 Make ZOOM error code for "invalid query".
32 Fixed compilation for SSL which wasn't properly enabled for all platforms.
36 For yaz.m4, allow second argument for YAZ_INIT to hold minimal version of
39 * SRW/SRU 1.1 updates. Diagnostic code now a URI.
41 Added option -p <file> to make Generic Frontend Server to write PID file.
43 Added option -D to put Generic Frontend Server in background on its own.
45 Make ZOOM C recognize option "password". If unset, "pass" is used
46 (for backwards compatibility).
48 Fixed a bug in Generic Frontend Server that could make it crash if a
49 client sets characterSetNegotation bit, but didn't pass negotiation stuff
52 New YAZ client command, zversion, that sets Z39.50 version (1,2,3..).
53 Must be issued before open, in order to be in effect.
55 --- 2.0.9-6 2004/01/12 Debian/Windows
57 Make the SRU server more picky WRT unknown params, etc.
59 Bug fix: ZOOM scan response didn't return displayTerm - when present.
61 New YAZ client command, options, that sets Z39.50 options.
63 New utility functions yaz_init_opt_{encode,decode} to encode/decode Z39.50
64 options from a string of tokens (one token for each option bit).
66 Update SRW diagnostic code messages.
68 --- 2.0.9-5 2004/01/07 Debian/Windows
70 Handle user defined stylesheet for SRW/SRU.
72 --- 2.0.9-4 2004/01/06 Debian/Windows
74 Fix bug in decoding of Content-Length.
76 --- 2.0.9-3 2004/01/06 Debian/Windows
78 Fix a bug with decoding of XML packed records.
80 --- 2.0.9-2 2004/01/05 Debian only
82 Allow empty ODR (NMEM=0) for odr_oiddup and odr_getoidbystr.
84 Fix bug in SRW/SRU diagnostics decoding.
88 Fixed bug in Generic Frontend Server which could drop records exceeding
89 preferred message size. Reported and fixed by Irina Dijour.
91 Fixed calculation of package size for structured records in Generic
92 Frontend Server. Reported and fixed by Irina Dijour.
94 Fixed namespace for SRW/SRU diagnostics.
96 Fixed SEGV in yaz-client that occured for HTTP connection errors.
100 * SRW/SRU 1.1. Since the Namespace has changed for SRW/SRU, it means that
101 this version is incompatible with version 1.0 and older YAZ SRW/SRU
104 CQL changes to reflect recent changes to the specification:
105 * Documentation talks about context sets instead of index sets.
106 * Documentation talks about indexes instead of qualifiers.
107 * The CQL-to-PQF transformer's configuration file now uses
108 "index.set.name = <attributes>" instead of the old form
109 "qualifier.set.name = <attributes>". (Both forms are still
110 understood but the latter is deprecated.)
111 * CQL terms with no explicit index specified are now interpreted as
112 cql.serverChoice instead of srw.serverChoice (which of course
113 behaves exactly the same.)
117 MARC conversion can now generate ISO2709 output in another
118 character set. yaz-marcdump uses this facility if you invoke it
121 Added missing C decl macros for include/yaz/{soap.h,srw.h,cql.h}, so that
122 functions from there can be used from C++.
126 Frontend server now transfers memory from decoded packages to stream
129 NMEM now clears freed blocks with 'Y' (hex 59) to force bad memory
130 references to show up.
132 ZOOM-C now supports standard ZOOM option names as described in v1.4 of
133 the ZOOM Abstract API. The older names for the same options are still
134 also supported for the benefit of old applications.
136 ZOOM-C supports "implementationId" and "implementationVersion" options
137 to go along with "implementationName". These allow the user code to
138 specify identification strings to be sent to servers.
139 Add OID for the new ExtLite attribute set.
141 Add OIDs for NACSIS-CATP, FINMARC2000 and MARC21-fin record-syntaxes,
142 as requested/supplid by Ere Maijala <ere@atp.fi>
144 For generic frontend server, reverse the order of
145 "toolkit-supplied / application-supplied" strings sent as implementationId,
146 Name and Version. Also, remove the spaces around the slash. This brings
147 the GFS in line with the behaviour of ZOOM-C on the client side.
149 Add function ZOOM_scanset_display_term.
151 yaz-client shows scan displayTerm if present.
153 Utility yaz-iconv is now installed by default along with the man page
156 Extend configure check for OpenSSL to use pkg-config where available (such
159 Incorporate patch by Morten Bogeskov which allows a Unix file socket
160 server to specify uid/gid/mask for socket using the format
161 unix:[user=uid,][group=gid,][umask=mask,]file=path
162 If file= is omitted the existing format is assumed, e.g.
164 in which case the mask is 0666 (rw for everybody).
166 Major restructure of YAZ source. All source in libyaz is in src directory.
167 Programs in client (yaz-client), ztest (yaz-ztest), zoom (zoom programs),
168 util (utility programs such as ASN.1 compiler, yaz-marcdump).
170 Added man page for utility yaz-marcdump (used to be called marcdump).
171 yaz-marcdump is installed by 'make install'.
173 Fixed a memory leak in Generic Frontend Server that occurred when decoding
174 of incoming package failed.
176 Fixed a potential DOS attack vulnerability in COMSTACK/ODR.
178 Change prototype of odr_perror: add const to message string.
180 New function yaz_log_reopen which reopens log file (for log rotate, etc.)
182 * Blocking parameter for COMSTACK cs_create is now a bit mask rather
183 than a blocking flag. Bit 0 is set for blocking, reset for non-blocking.
184 Bit 1 is set if cs_addrstr should avoid DNS lookup; reset for full
185 DNS lookup. There should not be any compatibility problems with this
186 assuming that blocking=1 or 0 is used.
188 Fix bad reference in UNIX comstack in function cs_addrstr.
190 Fix for compilation on AIX.
192 The generic front-end server (server/seshigh.c) now supports returning
193 Init diagnostics to the client in User-information-field, in
194 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
199 Allow any CQL relation (not just all,any,exact,scr).
201 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
202 that features the same UI.
204 Implemented command update0 in YAZ client which is equivalent to
205 update but uses old of Ext Update ASN.1.
207 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
208 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
209 Previously no OID was used for this info.
211 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
212 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
213 returns 'malformed search term' otherwise.
215 SortResponse member resultCount now set to NULL in sort handler of
218 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
221 Add three new utility functions for translating OIDs between various
222 formats -- symbolic name such as "Usmarc", minus-1-terminated int
223 arrays and dotted strings such as "1.2.840.10003.9.5.1":
224 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
225 char *oid_to_dotstring(const int *oid, char *oidbuf);
226 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
228 Reverted modifications for ES Update definition for z_IU0Update
229 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
230 is back to YAZ 2.0.2.
232 String value attributes for CCL parser.
234 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
235 which their FirstSearch server returns in Init responses, sometimes
236 carrying useful diagnostic information when Init fails. This has the
237 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
238 "z39.50/oclcui.asn", where its definition is somewhat different from
239 what OCLC document on their web-site, as required to interoperate with
242 Support for anonymous authentication in yaz-client. Use the command
245 * Fix the OID of the Index Data-local "admin" Extended Service from
246 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
247 the 1000, which indicates a locally-defined OID, was a mistake.
251 Fix CCL directive @case handling so that it affects string match for
252 both CCL keywords and qualifiers.
254 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
255 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
256 Decoder has been updated with ASN.1 changes as listed in
257 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
258 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
259 z_IUUpdate, remains unchanged.
261 ZOOM_record_get may now return a record in a specific character set.
262 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
263 "from" is the character set of record as returned by target. "to" is
264 the character set to be returned. If omitted, "to" is UTF-8.
266 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
268 New ODR utility, odr_getelement, which returns name of element for
269 which encoding/decoding failed.
271 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
272 in cases where a required element was omitted.
274 Bug fix: some MARC8 sequences were not converted.
276 New ZOOM option "step" which specifies number of records to be
277 retrieved in one chunk. Used in conjunction with "start" and "count".
279 SRW support for yaz-client. Use scheme http: to use it, e.g.
282 yaz-client no longer does (un)intelligent character set conversions
283 by default. Can be enabled with charset and marc_charset commands.
285 xmalloc trace fix for 64-bit systems such as DEC alpha.
287 Solaris 2.6 compile fix.
289 New function, cql_strerror() translates SRW error codes, as returned
290 by cql_transform_error(), into human-readable English strings. Used
291 in yaz-client diagnostics when appropriate.
293 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
294 converts it into a type-1 query which is sent to the server. This
295 makes CQL available for use with all Z-servers, as opposed to the tiny
296 minority that can handle CQL queries themselves.
300 New Debian package layout similar to the Redhat Package layout.
302 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
303 and search result respectively.
307 Redhat package is now several packages: libyaz (runtime libraries),
308 libyaz-devel (development and documentation, and yaz (utility programs).
309 Package spec file by Morten Bøgeskov.
311 New member 'schema' in struct bend_fetch_rr which the name of requested
312 schema (SRW/SRU) for record (or NULL if none was given). The fetch
313 handler MAY set this to reflect the schema of the returned record.
315 New member 'display_term' in struct scan_entry. GFS now sets member entries
316 and allocates scan entries to be filled by user scan handler. In previous
317 version, entries member was allocated by the scan handler. That still works,
318 but the GFS will ignore member display_term - assuming it was NOT set by
319 the handler. The fact that the GFS now allocates the entries both allows
320 for new members and makes a scan handler easier to write.
322 Fix CQL lex buffer overflow.
324 SRW/SRU recordPacking. For SRW default recordPacking is string. For
325 SRU default recordPacking is string.
327 SRU protocol support for frontend server.
329 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
331 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
333 Added scan for the ZOOM shell (zoomsh).
337 * String Identifers for Schemas (Amendment 5).
338 http://lcweb.loc.gov/z3950/agency/amend/am5.html
339 Old definition for schema
340 Odr_oid *schema; /* OPT */
345 Z_InternationalString *uri;
346 #define Z_Schema_oid 1
347 #define Z_Schema_uri 2
350 * resultCount parameter to Sort Response (Amendment 1).
351 http://lcweb.loc.gov/z3950/agency/amend/am1.html
353 Support for SRW 1.0 over HTTP. This is an optional feature and
354 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
357 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
358 on the same port. SRW SearchRetrieveRequests are mapped
359 to bend_init,bend_search,bend_fetch,bend_close.
361 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
363 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
364 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
366 ZOOM connections are SRW based if schem http is used for hostname
367 in connect, e.g. z = ZOOM_connection_new("http://myserver");
368 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
370 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
371 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
372 distance=n, order=true/false, relation=le, prox unit=word. If
373 n is omitted, distance 1 is used.
375 Fixed problem with C compiler include path in wrong order.
377 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
378 on Solaris. Patch from Ko van der Sloot.
380 New MARC decode API. All new functions operate on a yaz_marc_t
381 handle. The most important new functions are: yaz_marc_create,
382 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
383 decode and destroy respectively. Decoder can produce formats
384 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
385 include/yaz/marcdisp.h.
387 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
388 to UTF-8, UCS-32, wchar_t or Latin-1.
390 * Prototypes for yaz_iconv_-functions moved to separate header
391 include/yaz/yaz-iconv.h.
393 Make a few private functions 'static' in unix.c. This prevents
394 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
396 For ZOOM connection, the options targetImplementation{Id,Name,Version}
397 are set when Init Response is received.
399 New function ZOOM_connection_error_x similar to ZOOM_connection_error
400 but returns diagnostic set as well.
402 New function yaz_strerror which is a portable wrapper for
403 strerror/strerror_r/GetLastMessage.
405 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
406 is returned for MARC. If type is "oai", then OAI MARC is returned.
408 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
413 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
415 Fix bad race conditions on SIGTERM and terminate gracefully in
418 Move retrieval (data1) module to Zebra since nobody seems to be
421 Add GRS-1 render for ZOOM using same format as yaz-client.
425 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
427 Fix broken ESpec handling in data1 module.
429 SGML reader parses comments and makes them part of the data1 tree.
431 Added several type casts so that YAZ compiles as C++ code.
433 ZOOM didn't handle PDU encoding failures properly.
435 Added more Bib-1 diagnostics (approved extensions).
437 GNU configure: better check for iconv.
439 More portable use of accept, getpeername. Check for socklen_t. Use
440 int/size_t if socklen_t is not defined.
444 PQF parser rejects bad queries - including those with extra
445 characters in them. PQF parser used to silently ignore that.
446 Cleaner API for PQF added, which allows you to get detailed
447 error information for bad queries (see yaz/pquery.h).
449 Fixed bug in ZOOM_record_get for type "database".
451 Implemented mini iconv library supporting conversions between
452 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
454 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
458 Fixed ZOOM C record cache so that preferredRecordSyntax and
459 elementSetName is used to check for already fetched records.
463 Added three members in bend_initrequest structure to facilitate
464 character set negotiation.
466 Fixed a bug in frontend server that could cause indefinite
467 loops under rare conditions.
469 Revised character set utilities (charneg.h) so that encoding
470 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
472 For PQF, directive @term <type> sets term type for Scan/Search.
473 Here <type> is general, string, numeric, null. The term type
474 is inherited - just like @attr.
476 New call odr_set_charset that sets character set conversion for
477 international-strings on a ODR stream. Prototype is:
478 int odr_set_charset(ODR o, const char *to, const char *from);
479 The InternationalString is still represented as C string in YAZ
480 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
481 won't). On the protocol level, you can use any encoding.
483 Support for UNIX sockets in ZOOM.
485 Solaris recv sometimes returns errno == ENOENT. It is treated as
486 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
488 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
489 both client and server. Code by Morten Bøgeskov.
493 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
494 that they can be used directly from Visual Basic. You must recompile
495 your windows APP if you're using ZOOM.
497 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
498 Commands "lang" and "charset" sets language and character set respectively.
499 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
500 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
502 Attributes from multiple CCL fields may be OR'ed rather than merged
503 using directive "@field or". Fields are still merged by default -
504 equivalent to "@field merge".
506 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
509 Fixed bug in zget for parameter ExtendedServicesResponse.
515 Added PQF feature: '@attr type=value' may be written as '@type=value'.
517 Client displays USR.1:SearchResult-1 (hits per term).
519 Additional Search Info for search in Generic Frontend Server.
521 Fixed CCL parsing of "field=s".
523 WIN32 installer - using the excellent NSIS software from nullsoft.
525 Fixed CCL parsing of "field = - <number>".
527 Added function yaz_marc_decode that decodes MARC for line mode
528 display or XML (similar to that used by JZKit).
530 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
531 Z39.50. But ISO/ILL was, however.
533 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
534 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
536 http://lcweb.loc.gov/z3950/agency/amend/am2.html
537 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
541 New YAZ client features: Command completion and new commands:
542 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
543 Code provided by Jacob Poulsen.
545 New call oid_trav, that visits all registered OIDs via callback.
547 Function ZOOM_record_get now returns const char pointer rather than
548 void pointer. It saves a lot of type casts.
550 For YAZ client, command "auth" now allows you to set authentication
551 in IdPass style. It is enabled when three tokens are given - order
552 is user, group and password.
554 Fix memory leaks in MARC record handling for ZOOM.
556 New option for YAZ client, -k <kilobytes> that sets
557 maximum record size. Similar to -k option for generic frontend
558 server and yaz-ztest.
560 More fixes for scan. Non-zero stepSize handled. OID's fixes.
562 Prefix query parser reports "fail" when bad attribute set is given.
564 Fix in MARC decoder. Proximity logging. Fix for attribute set
565 in scan handler for server. Patches by Shigeru Ishida.
567 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
570 Configure option --with-openssl=<dir> now works when a directory is
571 specified. Patch provided by Morten Bøgeskov.
573 New option for YAZ client, -u <auth>, that sets authentication.
575 ZOOM fix: error information was sometimes "missing", since error
576 was cleared/reset too when it shouldn't.
578 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
582 Scan for ZOOM API. New object ZOOM_scanset. New functions
583 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
584 ZOOM_scanset_destroy.
586 New ZOOM function, ZOOM_connection_last_event, that returns type
587 of last event (such as "receive data", "send data", "apdu received",
590 New ZOOM option, schema, that specifies schema for retrieval.
592 New CCL feature. Qualifiers can be aliases for one or more
593 other qualifiers (if more than one is given, OR is used).
595 ZOOM uses named result sets if target supports it.
597 Two new YAZ client commands: . (dot, which sources a script of YAZ
598 client commands), and ! (to execute shell command.). Implemented
601 Working on Debian packages.
605 YAZ client enables named result sets only if target supports it.
607 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
609 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
610 with key="host" to get same result.
612 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
613 Function Z3950_resultset_record(s) returns references to records
614 "owned" by resultset. To become owner use Z3950_record_clone.
616 Function z_ext_record handles Extended Services. Thanks to
621 CCL Parser fix: ignore token comma when dealing with and-lists.
623 Documentation updates for COMSTACK.
625 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
626 Changed prototype Z3950_records. For some functions, int parameters
627 were changed to size_t.
629 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
632 New MARC decode/display function, marc_display_exl, which properly rejects
633 non-ISO2709 records. YAZ client uses it.
637 Fix bug: local attribute set wasn't set correctly in PQF strings.
641 * Old Z39.50 codecs no longer supported.
643 Added ZOOM C binding. See http://zoom.z3950.org/
645 Renamed states for COMSTACKs to avoid confusion with events.
647 Implemented cs_look and proper cs_rcvconnect.
649 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
651 Configure detects POSIX threads on OpenBSD.
653 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
654 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
656 When error is returned from present handler, non-surrogate diagnostic
657 is returned in present response (and fetch handler is no longer called).
659 * Minor adjustments to pquery parser (PQF). Token characters may be
660 escaped by using backslash (C-style).
662 PQF parser allows string attribute values to be specified. For @attr,
663 non-numeric characters after the equal-sign are treated as strings
664 (e.g. @attr 9=title).
666 CCL trunction character may be defined (@truncation in file)
668 * function zget_ExtendedServicesRequest sets waitAction to
669 waitIfPossible (was wait).
671 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
674 CCL operator names may be set in field definition files (CCL_bibset).
675 See ccl/bib1 for an example.
677 Fixes in ASN.1 compiler for C++ compatibility.
679 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
680 and "op_or" to avoid conflict with C++.
682 Fixed problem with GNU readline detection on Redhat 7.0.
684 Added step-size for Scan backend handler.
686 Fixed bug that made the frontend server crash when no attribute
687 set was specified for scan.
689 Front-end server automatically switches to original working directory
690 when installed as an NT service. Previously -w had to be specified to
693 Added extended attributes for retrieval module (data1), so that data1
694 records carry d1_readXML/SGML attributes. d1_read also supports
695 null-data rules ( <tag/>)
697 On UNIX when POSIX threads are available, a separate library libyazthread
698 is created. Programmers should link with that library and the yaz library
699 when using threads. The reason for the split was that some applications
700 on Linux, such as Apache, doesn't work well when using shared objects that
703 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
704 (or any frontend server) in SSL mode by specifying ssl: followed by
705 address. Only tested on UNIX.
707 Added feature for CCL module. Virtual structure s=al or s=ol generates
708 and-list and or-list respectively instead of phrase search.
712 * Added prefix "yaz_" for the functions log_init.., log_file.. and
713 log_mask_str. This was done to avoid name conflicts with other libraries
714 (such as other PHP extensions).
716 Added raw OID member for preferred record syntax (request_format_raw)
717 and returned record syntax (output_format_raw) for backend fetch method.
719 Config file yaz-config now accepts options so that it returns specific
720 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
722 Shared library support for UNIX using GNU libtool.
724 * Modified backend interface. Request/Response struct's replaced by
725 one read/write C struct. For example bend_fetchrequest and
726 bend_fetchresult have been replaced by single bend_fetch_rr struct.
727 Every handler - even search has to be registered in bend_init
728 handler. This means that the YAZ library no longer refers to
729 external functions and it makes it possible to make the whole
730 thing a single DLL/SO.
732 Added Segment handler for backend server.
734 Added Zmbol/Zebra administrative functions to YAZ client.
736 Threaded frontend server on UNIX (when POSIX Threads are available).
737 Starting the server with option -T enables multi-threading.
741 Added configure option --enable-comp/disable-comp to control use
742 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
743 located in sub directory asn.
745 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
746 in ${exec_prefix}/bin along with the other programs yaz-client and
749 GNU automake used to maintain makefiles.
753 Changed retrieval module so that we can load records with no abstract
754 syntax defined. Tagpaths in these records are fully composed of string
757 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
761 On UNIX, the generated makefile now supports a proper 'make install'.
762 The prefix can be set via GNU configure to set the install location
763 (default is /usr/local).
765 * YAZ programs client and ztest were renamed to yaz-client and
766 yaz-ztest to avoid conflicts when users install YAZ in "standard"
767 locations, such as /usr/bin,/usr/local/bin,etc.
769 * YAZ Header files were moved from include to include/yaz. YAZ Header
770 files are referred to as include <yaz/log.h> rather than <log.h>.
771 The YAZ include path (-I ..) is therefore the same as before. Programmers
772 should update their #include statements or use -Ipath/include/yaz
773 instead. The main motivation for doing this change is that YAZ header files
774 can be installed in "standard" locations /usr/include,/usr/local/include
775 without introducing conflicts, since ALL YAZ header files are stored
776 in subdirectory yaz (under /usr/include for example).
778 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
779 rather than project/workspace files. We switched because project files
780 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
783 Changed name of logging function, logf, to yaz_log, to prevent name
784 clash with some math-log functions. The YAZ header log.h defines logf
785 to yaz_log (#define) so there should be no incompatibilities by this
788 Added bend_start/bend_stop handlers for server. These handler are
789 called on start/stop of server. For windows they are called whenever
790 a service is started/stopped.
792 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
793 a fairly small ASN.1 compiler written in Tcl. The compiler is located
794 in util/yc.tcl. The auto-generated C code structures are, in a few
795 cases, incompatible with the old decoders. There are differences in the
796 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
797 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
798 The preprocessor variable ASN_COMPILED is defined when the compiled
799 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
800 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
801 wish to use the old encoders/decoders you can specify --disable-yc
804 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
805 version so that it supports both new - and old version of DB Update
807 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
808 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
809 change. The name parameter can be set to 0 in which no name is specified
810 for the construction. The macros odr_implicit and odr_explicit sets name
811 parameter to zero for the construction involved. New macros
812 odr_implicit_tag and odr_explicit_tag are similar to the others,
813 except that a name parameter is added. For programmers' that don't use
814 ODR they probably only need to change the call to z_APDU and z_External.
816 Added access control facility by interfacing the TCP wrapper library.
817 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
818 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
819 name of the daemon and enables the access control as specified in
820 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
822 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
823 den Dool <H.M.vdnDool@kub.nl>.
825 Added reference ID parameter to most functions in server API - refer
826 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
828 Changed name of ccl library to libccl.a (was ccl.a).
830 Fixed bug in decoder for Explain (Category TargetInfo).
832 Added support for GNU readline in client. Thanks to Jacob Poulsen
833 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
835 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
836 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
837 IMPLEMENTATION! This change was made to the development version before
838 the ZIG decided to retract the amendment. If any users MUST be
839 compatible with the original Update definition, PLEASE CONTACT US, and
840 we will include a separate definition corresponding to the old Update
841 ES. Note that because of the change to the ASN.1 of the
842 TaskPackageRecordStructure we cannot define a single structure that
843 will support both versions.
845 * Added const modifier to buffer parameter for some ODR/BER encoding
846 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
847 completeWAIS, odr_dumpBER.
849 Fixed bug in client.c which caused a crash when a scanResponse didn't
850 contain positionOfTerm.
852 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
853 * will cause an error in a client if a non-YAZ target sends both a
854 * list of Scan entries and non-surrogate diagnostics.
856 Retrieval module enhancements. Tag sets may be typed in the reference
857 to it. From the .abs-file the "tagset" directive takes a third optional
858 integer type for the tag set referenced. From a .tag-file the "include"
859 directive takes a third optional type as well. The old "type" directive
860 in the tag set itself is still recognized but acts as the default type
863 Backend interface change. Individual Scan terms returned from bend_scan
864 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
865 in include/backend.h.
867 Retrieval module enhancements. Multiple tag sets and attribute sets may
868 be specified in abstract syntax specs. Revised the error/warning for
869 logging messages reported by the retrieval module when reading the
872 Object Identifier system (oid_..) changed. The API is backwards
873 compatible but the oid-routines now allocates new OID's when needed.
874 Raw OID's may be specified in oid_getvalbyname.
876 YAZ now uses GNU configure to generate Makefile(s).
878 * Minor changes in some of the member names of DeleteResultSetRequest and
879 DeleteResultSetResponse. See include/proto.h.
881 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
882 and added member 'languages' in TargetInfo (which was missing).
884 Changed the way attribute sets are handled in the retrieval
885 module. These are now cached, just like the abstract syntaxes
888 Changed YAZ so that it links with compiled ASN.1.
890 Added Explain-schema definitions and mapping routines. The following
891 Explain categories have been implemented: AttributeDetails,
892 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
894 Fixed minor bug in Windows version of Server Library.
896 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
898 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
900 Added EXTERNAL: UNIverse Resource Report (non-standard).
902 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
903 ENUMERATED and SET OF.
905 * Added 'const' to some of the char pointer arguments for the
906 functions, data1_read_node, data1_getelementbytagname,
907 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
910 Fixed bug in data1_insert_taggeddata - the last_child member of
911 parent wasn't initialised.
913 * Changed data1_read_record and data1_read_node so that the supplied
914 "SGML"-buffer is read-only. In particular the resulting data1 - tree
915 doesn't refer to any parts of the "SGML"-buffer.
917 Fixed bug in server library (Windows version of statserv_remove).
919 * Changed code so that it compiles as C++. The type definition
920 of Odr_fun which is a member of Odr_arm was changed. The result is,
921 that an explicit typecast is needed for the fun pointer when
922 using Odr_arm - as in:
923 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
925 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
927 Implemented the new structured date and time definition as approved
928 by the ZIG. Added schemaId element to the specificTag in Espec-1
929 (also approved at the last ZIG). Thanks to RVDM.
931 Added some Object identifiers (RVDM).
933 Changed the Update Extended Service (RVDM).
935 Added command "refid" to client which specifies referenceId for
936 the following requests.
938 Implemented extended service handling for server. See ztest.c
939 for an example as well as backend.h. New handlers are registerd
942 * Changed interface for sort in server.
944 Added new members to statserv_options_block. It allows a server
945 to read options from another source than just the command line. Thanks
946 to Charles Woodfield.
948 * Changed definition of Z_Triple in file prt-grs.h - member boolean
949 renamed to zboolean. Some C++ compilers complained about the name.
951 Minor changes to gils.abs. Added index 's' (sort) on title
952 and date/time-last-modified.
956 Fixed bug in server library regarding inetd mode (-i). This bug
957 was introduced by release 1.4.
961 Added sort facility in client and backend server interface.
963 Fixed problem with dependencies in Makefile(s).
965 Fixed bugs for encoders/decoders of extended services and
968 Implemented sub-tree feature for schemas. Sub-trees are
969 referenced in *.abs-files. See explain.abs for an example
970 of the use of this feature.
972 Modified bib1.att; local attributes for ANY didn't include
973 ANY itself (only affects use of the retrieval module).
975 Fixed bug in plain SGML reader in function data1_read_node:
976 tags with prefix "var" was incorrectly interpreted as variants.
978 Added feature "sub-schemas" to enable references to - and definitions
979 of - group of elements.
981 * Removed member parent from type data1_element (in data1.h).
983 Implemented function odr_nullval() that returns the value of
986 * Removed member num_children from data1_node (in data1.h).
988 Made NT service interface part of the server library. The
989 function statserv_main uses the NT service when required and
990 calls the statserv_start / statserv_close routines.
992 Routine zget_SearchRequest and zget_PresentRequest fills
993 resultSetName/Id member with "default" instead of "Default".
995 Fixed memory leak in server. Request queue member wasn't freed.
997 Fixed nmem_exit so that memory is freed.
1001 Revised the CCL parser utility to be thread safe.
1003 Added function, oid_ent_to_oid, to replace the function
1004 oid_getoidbyent, which is not thread safe.
1006 * Added nmem_init and nmem_exit to initialize and release
1007 NMEM resources. Function nmem_init should be called once in the
1008 initial thread before NMEM/ODR is used. statserv.c and client.c
1009 have been changed accordingly. The change was necessary to make
1010 NMEM thread safe. The NMEM memory pool is shared amongst threads
1011 in a process. Unix-based applications will still work fine without
1014 Added NT Services interface for the the Z39.50 (statserv) Server.
1015 Refer to the ztest.c source on the usage.
1017 Windows 95/NT port using MSVC5.0. Project files are included in the
1020 * Defined new 'global' handle for the retrieval (data1) system. The
1021 new handled, data1_handle, describes the state of the data1 system.
1022 This handle is passed as first argument to virtually all
1023 data1 related routines. The functions data1_create and data1_destroy
1024 creates and destroys a data1 handle respectively.
1026 Added ODR encode stream member to all backend request structures
1027 init, search, scan etc. This stream should be used to allocate all
1028 memory used for the response when thread safe operation is needed.
1030 Changed the comstack utility, cs_addstr, to be thread safe. The
1031 returned hostname string returned by the function is now part the
1034 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
1035 function. The cs_straddr takes a COMSTACK handle as argument, so this
1036 function must be used after cs_create and before bind/connect.
1037 This function is thread safe.
1039 Moved test server to 'ztest' directory - generic server code still
1040 in 'server' directory.
1042 Made prefix query (pquery.c) utility thread safe.
1044 Added new function modifier YAZ_EXPORT to 'export' public DLL
1045 functions when using windows (see include/yconfig.h).
1047 Added definitions to the OID database (util/oid.c) (RVDM).
1049 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
1051 Added call to ccl_rpn_delete in client program.
1053 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
1054 release of RPN structure.
1056 Added support for C++, headers uses extern "C" for public definitions.
1057 With input from RVDM.
1059 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
1060 Thanks to Ronald van der Meer (RVDM).
1062 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
1064 Added support for private extensions to the OID database
1065 (oid_setprivateoids()). Thanks to RVDM.
1067 Added optional, physical ANY (key replication)
1069 Fixed null-reference problem in GRS-1 output filter.
1071 Proximity operator added to Prefix Query Format (PQF).
1073 In test client command "base" accepts multiple databases.
1075 Fixed bug in cs_close stack that caused trouble with WINSOCK.
1079 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1081 Smallish bug-fixes in the new encoders/decoders (explain).
1083 Bug fixed in DeleteRequest.
1085 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
1087 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1089 Added SOIF syntax (using private OID for now) to retrieval module and client.
1091 Added Update extended service.
1093 Added SearchResult-1 additional info structure.
1095 Added optional CCL (ISO8777) interpreter as separate module. Available
1098 --- 1.2 1996/6/10 (1st anniversary release)
1100 Added Summary record syntax. Lightly tested.
1102 Added OPAC record syntax. Untested.
1104 Added ResourceReport service encoders/decoders. Untested.
1106 Fixed bug in z_Unit - wrong tagging on unitSystem.
1108 Fixed bug in the DiagRecs decoder.
1110 Added options for max PDU size and session timeout to frontend-server.
1112 Added documentation of query-language parsers and other supporting utilities.
1114 [frontend-server] Added Attribute set to the bend_scanrequest API.
1116 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
1117 surrogate diagnostics were generated.
1119 [retrieval] Allow multiple local values for attribute.
1121 [retrieval] Allow multiple attributes per element in .abs files. index type.
1123 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
1125 --- 1.1pl2 1996/4/10
1127 Minor changes, mostly specific to Zebra's requirements (retrieval)
1131 Repaired bug in frontend server when running multiple listening
1132 endpoints in dynamic mode.
1134 z_External() now won't break if a known, ASN.1 value comes encapsulated
1135 in an octet-string. The value will pass through unmodified in an Odr_oct.
1137 Added a bit of code to the demo client to decode & display
1138 ASN.1-structured records represented in the octet-aligned branch of
1139 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
1141 Added z_ext_getentbyref() to the ASN module. Doc updated.
1143 * Completed the SCAN definition in the ASN module. This may break SCAN
1144 code based on older YAZ-versions at compile-time. The fix is easy -
1147 * Added 'displayTerm' and OtherInformation to the TermInfo structure
1148 under the SCAN definition. Remember to initialize this, server-people.
1150 Comstack should now support the WAIS protocol in TCP/IP mode. Note
1151 that this does not extend to ODR and ASN.
1153 Comstack allows insertion of established socket (primarily for
1154 inetd-operation of servers). Doc updated.
1156 Front-end server can now start from the inetd in TCP mode. Doc
1159 --- 1.0pl4 1996/1/24
1163 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
1164 the rank and record number.
1166 Adjustments to the frontend server.
1168 Fixed diagnostic BER dumper. It ignored the file argument.
1172 Various changes to retrieval module.
1174 Changed the union discriminators of the protocol files from enums to
1175 ints paired with #defines.
1177 *Changed oident.class to oident.oclass to avoid a reserved word in C++
1180 *Changed operator in the RPN structure to 'roperator', again to avoid a
1183 Fixed problems in Explain decoders/encoders.
1185 --- 1.0pl2 1995/12/6
1187 Memory bug in log module fixed.
1189 --- 1.0pl1 1995/12/5
1191 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1193 Bug in Explain DatabaseInfo module fixed.
1195 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1199 The shift to v1.0 signals that we now consider the *core* functionality
1200 of YAZ reasonably stable (the core being more or less equivalent to
1201 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1202 tested (Explain not at all - though that will happen soonish).
1204 Minor changes to code to support Windows port.
1206 Various minor changes after we're getting to use GRS-1 & co. more.
1208 Added Espec-1 format.
1210 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1211 of the protocol and it cannot be selected when encoding (maps into 'string'
1212 when decoding). Needed to talk to some servers.
1214 Demo client can request simple element set names.
1216 Added Diagnostic Format encoders/decoders.
1218 Added simple Close handling to frontend server (no hooks for resource
1219 reporting yet), and demonstration client.
1221 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1223 --- 1.0b3 1995/08/24
1225 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1226 handled incorrectly when records were requested in the searchResponse. This
1227 will only affect you if you use the frontend-server.
1229 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1230 Test-client will ask for and print GRS1. Ztest will return dummy records
1233 Added Explain encoders/decoders to the service-level API. Untested.
1235 Added Extended Services: Item Order encoders and decoders to the Service-
1236 level API. Untested. We could use a recent copy of the pertinent bits
1237 of the ILL protocol to add those bits.
1239 Added diagnostic format 1 encoders/decoders to the service-level API.
1242 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1243 odr_cons.c, which causes a more correct output.
1245 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1246 was always set to 0 when no records were requested in the searchRequest.
1248 * Added better external-handling. This shouldn't harm old code that
1249 *encodes* externals. It can break code that looks for a
1250 'single-ASN1-type' representation, since those types that are known
1251 are now decoded immediately. Look at the SUTRS sample code in
1252 seshigh.c and client.c. Documentation updated.
1254 Handling of structured records in bend_fetchresponse. Length -1 marks
1255 structured record, type is deduced from format field.
1257 --- 1.0b2 1995/06/27
1258 Fairly quick maintenance release to add SUTRS support.
1260 Fixed handling of SUTRS records in the demonstration client.
1262 * Added format field to the bend_fetchrequest and bend_fetchresponce
1263 structures of the backend API (frontend server). When the record is
1264 returned, the value of the format field is mapped to an OID. The
1265 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1266 of the record. The special value VAL_NONE in the bend_request means
1267 that no specific format was requested by the client. Documentation
1268 updated accordingly. Test server (ztest) will return a fixed dummy
1269 SUTRS record if your client requests SUTRS.
1271 Documentation updated accordingly.
1273 You can now set external libraries and RANLIB support in the top-level
1277 First public release.