1 Possible compatibility problems with earlier versions marked with '*'.
3 Added option -p <file> to make Generic Frontend Server to write PID file.
5 Added option -D to put Generic Frontend Server in background on its own.
7 Make ZOOM C recognize option "password". If unset, "pass" is used
8 (for backwards compatibility).
10 Fixed a bug in Generic Frontend Server that could make it crash if a
11 client sets characterSetNegotation bit, but didn't pass negotiation stuff
14 New YAZ client command, zversion, that sets Z39.50 version (1,2,3..).
15 Must be issued before open, in order to be in effect.
17 --- 2.0.9-6 2004/01/12 Debian/Windows
19 Make the SRU server more picky WRT unknown params, etc.
21 Bug fix: ZOOM scan response didn't return displayTerm - when present.
23 New YAZ client command, options, that sets Z39.50 options.
25 New utility functions yaz_init_opt_{encode,decode} to encode/decode Z39.50
26 options from a string of tokens (one token for each option bit).
28 Update SRW diagnostic code messages.
30 --- 2.0.9-5 2004/01/07 Debian/Windows
32 Handle user defined stylesheet for SRW/SRU.
34 --- 2.0.9-4 2004/01/06 Debian/Windows
36 Fix bug in decoding of Content-Length.
38 --- 2.0.9-3 2004/01/06 Debian/Windows
40 Fix a bug with decoding of XML packed records.
42 --- 2.0.9-2 2004/01/05 Debian only
44 Allow empty ODR (NMEM=0) for odr_oiddup and odr_getoidbystr.
46 Fix bug in SRW/SRU diagnostics decoding.
50 Fixed bug in Generic Frontend Server which could drop records exceeding
51 preferred message size. Reported and fixed by Irina Dijour.
53 Fixed calculation of package size for structured records in Generic
54 Frontend Server. Reported and fixed by Irina Dijour.
56 Fixed namespace for SRW/SRU diagnostics.
58 Fixed SEGV in yaz-client that occured for HTTP connection errors.
62 * SRW/SRU 1.1. Since the Namespace has changed for SRW/SRU, it means that
63 this version is incompatible with version 1.0 and older YAZ SRW/SRU
66 CQL changes to reflect recent changes to the specification:
67 * Documentation talks about context sets instead of index sets.
68 * Documentation talks about indexes instead of qualifiers.
69 * The CQL-to-PQF transformer's configuration file now uses
70 "index.set.name = <attributes>" instead of the old form
71 "qualifier.set.name = <attributes>". (Both forms are still
72 understood but the latter is deprecated.)
73 * CQL terms with no explicit index specified are now interpreted as
74 cql.serverChoice instead of srw.serverChoice (which of course
75 behaves exactly the same.)
79 MARC conversion can now generate ISO2709 output in another
80 character set. yaz-marcdump uses this facility if you invoke it
83 Added missing C decl macros for include/yaz/{soap.h,srw.h,cql.h}, so that
84 functions from there can be used from C++.
88 Frontend server now transfers memory from decoded packages to stream
91 NMEM now clears freed blocks with 'Y' (hex 59) to force bad memory
92 references to show up.
94 ZOOM-C now supports standard ZOOM option names as described in v1.4 of
95 the ZOOM Abstract API. The older names for the same options are still
96 also supported for the benefit of old applications.
98 ZOOM-C supports "implementationId" and "implementationVersion" options
99 to go along with "implementationName". These allow the user code to
100 specify identification strings to be sent to servers.
101 Add OID for the new ExtLite attribute set.
103 Add OIDs for NACSIS-CATP, FINMARC2000 and MARC21-fin record-syntaxes,
104 as requested/supplid by Ere Maijala <ere@atp.fi>
106 For generic frontend server, reverse the order of
107 "toolkit-supplied / application-supplied" strings sent as implementationId,
108 Name and Version. Also, remove the spaces around the slash. This brings
109 the GFS in line with the behaviour of ZOOM-C on the client side.
111 Add function ZOOM_scanset_display_term.
113 yaz-client shows scan displayTerm if present.
115 Utility yaz-iconv is now installed by default along with the man page
118 Extend configure check for OpenSSL to use pkg-config where available (such
121 Incorporate patch by Morten Bogeskov which allows a Unix file socket
122 server to specify uid/gid/mask for socket using the format
123 unix:[user=uid,][group=gid,][umask=mask,]file=path
124 If file= is omitted the existing format is assumed, e.g.
126 in which case the mask is 0666 (rw for everybody).
128 Major restructure of YAZ source. All source in libyaz is in src directory.
129 Programs in client (yaz-client), ztest (yaz-ztest), zoom (zoom programs),
130 util (utility programs such as ASN.1 compiler, yaz-marcdump).
132 Added man page for utility yaz-marcdump (used to be called marcdump).
133 yaz-marcdump is installed by 'make install'.
135 Fixed a memory leak in Generic Frontend Server that occurred when decoding
136 of incoming package failed.
138 Fixed a potential DOS attack vulnerability in COMSTACK/ODR.
140 Change prototype of odr_perror: add const to message string.
142 New function yaz_log_reopen which reopens log file (for log rotate, etc.)
144 * Blocking parameter for COMSTACK cs_create is now a bit mask rather
145 than a blocking flag. Bit 0 is set for blocking, reset for non-blocking.
146 Bit 1 is set if cs_addrstr should avoid DNS lookup; reset for full
147 DNS lookup. There should not be any compatibility problems with this
148 assuming that blocking=1 or 0 is used.
150 Fix bad reference in UNIX comstack in function cs_addrstr.
152 Fix for compilation on AIX.
154 The generic front-end server (server/seshigh.c) now supports returning
155 Init diagnostics to the client in User-information-field, in
156 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
161 Allow any CQL relation (not just all,any,exact,scr).
163 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
164 that features the same UI.
166 Implemented command update0 in YAZ client which is equivalent to
167 update but uses old of Ext Update ASN.1.
169 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
170 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
171 Previously no OID was used for this info.
173 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
174 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
175 returns 'malformed search term' otherwise.
177 SortResponse member resultCount now set to NULL in sort handler of
180 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
183 Add three new utility functions for translating OIDs between various
184 formats -- symbolic name such as "Usmarc", minus-1-terminated int
185 arrays and dotted strings such as "1.2.840.10003.9.5.1":
186 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
187 char *oid_to_dotstring(const int *oid, char *oidbuf);
188 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
190 Reverted modifications for ES Update definition for z_IU0Update
191 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
192 is back to YAZ 2.0.2.
194 String value attributes for CCL parser.
196 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
197 which their FirstSearch server returns in Init responses, sometimes
198 carrying useful diagnostic information when Init fails. This has the
199 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
200 "z39.50/oclcui.asn", where its definition is somewhat different from
201 what OCLC document on their web-site, as required to interoperate with
204 Support for anonymous authentication in yaz-client. Use the command
207 * Fix the OID of the Index Data-local "admin" Extended Service from
208 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
209 the 1000, which indicates a locally-defined OID, was a mistake.
213 Fix CCL directive @case handling so that it affects string match for
214 both CCL keywords and qualifiers.
216 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
217 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
218 Decoder has been updated with ASN.1 changes as listed in
219 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
220 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
221 z_IUUpdate, remains unchanged.
223 ZOOM_record_get may now return a record in a specific character set.
224 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
225 "from" is the character set of record as returned by target. "to" is
226 the character set to be returned. If omitted, "to" is UTF-8.
228 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
230 New ODR utility, odr_getelement, which returns name of element for
231 which encoding/decoding failed.
233 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
234 in cases where a required element was omitted.
236 Bug fix: some MARC8 sequences were not converted.
238 New ZOOM option "step" which specifies number of records to be
239 retrieved in one chunk. Used in conjunction with "start" and "count".
241 SRW support for yaz-client. Use scheme http: to use it, e.g.
244 yaz-client no longer does (un)intelligent character set conversions
245 by default. Can be enabled with charset and marc_charset commands.
247 xmalloc trace fix for 64-bit systems such as DEC alpha.
249 Solaris 2.6 compile fix.
251 New function, cql_strerror() translates SRW error codes, as returned
252 by cql_transform_error(), into human-readable English strings. Used
253 in yaz-client diagnostics when appropriate.
255 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
256 converts it into a type-1 query which is sent to the server. This
257 makes CQL available for use with all Z-servers, as opposed to the tiny
258 minority that can handle CQL queries themselves.
262 New Debian package layout similar to the Redhat Package layout.
264 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
265 and search result respectively.
269 Redhat package is now several packages: libyaz (runtime libraries),
270 libyaz-devel (development and documentation, and yaz (utility programs).
271 Package spec file by Morten Bøgeskov.
273 New member 'schema' in struct bend_fetch_rr which the name of requested
274 schema (SRW/SRU) for record (or NULL if none was given). The fetch
275 handler MAY set this to reflect the schema of the returned record.
277 New member 'display_term' in struct scan_entry. GFS now sets member entries
278 and allocates scan entries to be filled by user scan handler. In previous
279 version, entries member was allocated by the scan handler. That still works,
280 but the GFS will ignore member display_term - assuming it was NOT set by
281 the handler. The fact that the GFS now allocates the entries both allows
282 for new members and makes a scan handler easier to write.
284 Fix CQL lex buffer overflow.
286 SRW/SRU recordPacking. For SRW default recordPacking is string. For
287 SRU default recordPacking is string.
289 SRU protocol support for frontend server.
291 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
293 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
295 Added scan for the ZOOM shell (zoomsh).
299 * String Identifers for Schemas (Amendment 5).
300 http://lcweb.loc.gov/z3950/agency/amend/am5.html
301 Old definition for schema
302 Odr_oid *schema; /* OPT */
307 Z_InternationalString *uri;
308 #define Z_Schema_oid 1
309 #define Z_Schema_uri 2
312 * resultCount parameter to Sort Response (Amendment 1).
313 http://lcweb.loc.gov/z3950/agency/amend/am1.html
315 Support for SRW 1.0 over HTTP. This is an optional feature and
316 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
319 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
320 on the same port. SRW SearchRetrieveRequests are mapped
321 to bend_init,bend_search,bend_fetch,bend_close.
323 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
325 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
326 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
328 ZOOM connections are SRW based if schem http is used for hostname
329 in connect, e.g. z = ZOOM_connection_new("http://myserver");
330 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
332 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
333 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
334 distance=n, order=true/false, relation=le, prox unit=word. If
335 n is omitted, distance 1 is used.
337 Fixed problem with C compiler include path in wrong order.
339 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
340 on Solaris. Patch from Ko van der Sloot.
342 New MARC decode API. All new functions operate on a yaz_marc_t
343 handle. The most important new functions are: yaz_marc_create,
344 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
345 decode and destroy respectively. Decoder can produce formats
346 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
347 include/yaz/marcdisp.h.
349 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
350 to UTF-8, UCS-32, wchar_t or Latin-1.
352 * Prototypes for yaz_iconv_-functions moved to separate header
353 include/yaz/yaz-iconv.h.
355 Make a few private functions 'static' in unix.c. This prevents
356 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
358 For ZOOM connection, the options targetImplementation{Id,Name,Version}
359 are set when Init Response is received.
361 New function ZOOM_connection_error_x similar to ZOOM_connection_error
362 but returns diagnostic set as well.
364 New function yaz_strerror which is a portable wrapper for
365 strerror/strerror_r/GetLastMessage.
367 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
368 is returned for MARC. If type is "oai", then OAI MARC is returned.
370 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
375 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
377 Fix bad race conditions on SIGTERM and terminate gracefully in
380 Move retrieval (data1) module to Zebra since nobody seems to be
383 Add GRS-1 render for ZOOM using same format as yaz-client.
387 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
389 Fix broken ESpec handling in data1 module.
391 SGML reader parses comments and makes them part of the data1 tree.
393 Added several type casts so that YAZ compiles as C++ code.
395 ZOOM didn't handle PDU encoding failures properly.
397 Added more Bib-1 diagnostics (approved extensions).
399 GNU configure: better check for iconv.
401 More portable use of accept, getpeername. Check for socklen_t. Use
402 int/size_t if socklen_t is not defined.
406 PQF parser rejects bad queries - including those with extra
407 characters in them. PQF parser used to silently ignore that.
408 Cleaner API for PQF added, which allows you to get detailed
409 error information for bad queries (see yaz/pquery.h).
411 Fixed bug in ZOOM_record_get for type "database".
413 Implemented mini iconv library supporting conversions between
414 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
416 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
420 Fixed ZOOM C record cache so that preferredRecordSyntax and
421 elementSetName is used to check for already fetched records.
425 Added three members in bend_initrequest structure to facilitate
426 character set negotiation.
428 Fixed a bug in frontend server that could cause indefinite
429 loops under rare conditions.
431 Revised character set utilities (charneg.h) so that encoding
432 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
434 For PQF, directive @term <type> sets term type for Scan/Search.
435 Here <type> is general, string, numeric, null. The term type
436 is inherited - just like @attr.
438 New call odr_set_charset that sets character set conversion for
439 international-strings on a ODR stream. Prototype is:
440 int odr_set_charset(ODR o, const char *to, const char *from);
441 The InternationalString is still represented as C string in YAZ
442 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
443 won't). On the protocol level, you can use any encoding.
445 Support for UNIX sockets in ZOOM.
447 Solaris recv sometimes returns errno == ENOENT. It is treated as
448 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
450 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
451 both client and server. Code by Morten Bøgeskov.
455 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
456 that they can be used directly from Visual Basic. You must recompile
457 your windows APP if you're using ZOOM.
459 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
460 Commands "lang" and "charset" sets language and character set respectively.
461 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
462 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
464 Attributes from multiple CCL fields may be OR'ed rather than merged
465 using directive "@field or". Fields are still merged by default -
466 equivalent to "@field merge".
468 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
471 Fixed bug in zget for parameter ExtendedServicesResponse.
477 Added PQF feature: '@attr type=value' may be written as '@type=value'.
479 Client displays USR.1:SearchResult-1 (hits per term).
481 Additional Search Info for search in Generic Frontend Server.
483 Fixed CCL parsing of "field=s".
485 WIN32 installer - using the excellent NSIS software from nullsoft.
487 Fixed CCL parsing of "field = - <number>".
489 Added function yaz_marc_decode that decodes MARC for line mode
490 display or XML (similar to that used by JZKit).
492 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
493 Z39.50. But ISO/ILL was, however.
495 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
496 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
498 http://lcweb.loc.gov/z3950/agency/amend/am2.html
499 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
503 New YAZ client features: Command completion and new commands:
504 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
505 Code provided by Jacob Poulsen.
507 New call oid_trav, that visits all registered OIDs via callback.
509 Function ZOOM_record_get now returns const char pointer rather than
510 void pointer. It saves a lot of type casts.
512 For YAZ client, command "auth" now allows you to set authentication
513 in IdPass style. It is enabled when three tokens are given - order
514 is user, group and password.
516 Fix memory leaks in MARC record handling for ZOOM.
518 New option for YAZ client, -k <kilobytes> that sets
519 maximum record size. Similar to -k option for generic frontend
520 server and yaz-ztest.
522 More fixes for scan. Non-zero stepSize handled. OID's fixes.
524 Prefix query parser reports "fail" when bad attribute set is given.
526 Fix in MARC decoder. Proximity logging. Fix for attribute set
527 in scan handler for server. Patches by Shigeru Ishida.
529 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
532 Configure option --with-openssl=<dir> now works when a directory is
533 specified. Patch provided by Morten Bøgeskov.
535 New option for YAZ client, -u <auth>, that sets authentication.
537 ZOOM fix: error information was sometimes "missing", since error
538 was cleared/reset too when it shouldn't.
540 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
544 Scan for ZOOM API. New object ZOOM_scanset. New functions
545 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
546 ZOOM_scanset_destroy.
548 New ZOOM function, ZOOM_connection_last_event, that returns type
549 of last event (such as "receive data", "send data", "apdu received",
552 New ZOOM option, schema, that specifies schema for retrieval.
554 New CCL feature. Qualifiers can be aliases for one or more
555 other qualifiers (if more than one is given, OR is used).
557 ZOOM uses named result sets if target supports it.
559 Two new YAZ client commands: . (dot, which sources a script of YAZ
560 client commands), and ! (to execute shell command.). Implemented
563 Working on Debian packages.
567 YAZ client enables named result sets only if target supports it.
569 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
571 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
572 with key="host" to get same result.
574 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
575 Function Z3950_resultset_record(s) returns references to records
576 "owned" by resultset. To become owner use Z3950_record_clone.
578 Function z_ext_record handles Extended Services. Thanks to
583 CCL Parser fix: ignore token comma when dealing with and-lists.
585 Documentation updates for COMSTACK.
587 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
588 Changed prototype Z3950_records. For some functions, int parameters
589 were changed to size_t.
591 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
594 New MARC decode/display function, marc_display_exl, which properly rejects
595 non-ISO2709 records. YAZ client uses it.
599 Fix bug: local attribute set wasn't set correctly in PQF strings.
603 * Old Z39.50 codecs no longer supported.
605 Added ZOOM C binding. See http://zoom.z3950.org/
607 Renamed states for COMSTACKs to avoid confusion with events.
609 Implemented cs_look and proper cs_rcvconnect.
611 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
613 Configure detects POSIX threads on OpenBSD.
615 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
616 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
618 When error is returned from present handler, non-surrogate diagnostic
619 is returned in present response (and fetch handler is no longer called).
621 * Minor adjustments to pquery parser (PQF). Token characters may be
622 escaped by using backslash (C-style).
624 PQF parser allows string attribute values to be specified. For @attr,
625 non-numeric characters after the equal-sign are treated as strings
626 (e.g. @attr 9=title).
628 CCL trunction character may be defined (@truncation in file)
630 * function zget_ExtendedServicesRequest sets waitAction to
631 waitIfPossible (was wait).
633 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
636 CCL operator names may be set in field definition files (CCL_bibset).
637 See ccl/bib1 for an example.
639 Fixes in ASN.1 compiler for C++ compatibility.
641 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
642 and "op_or" to avoid conflict with C++.
644 Fixed problem with GNU readline detection on Redhat 7.0.
646 Added step-size for Scan backend handler.
648 Fixed bug that made the frontend server crash when no attribute
649 set was specified for scan.
651 Front-end server automatically switches to original working directory
652 when installed as an NT service. Previously -w had to be specified to
655 Added extended attributes for retrieval module (data1), so that data1
656 records carry d1_readXML/SGML attributes. d1_read also supports
657 null-data rules ( <tag/>)
659 On UNIX when POSIX threads are available, a separate library libyazthread
660 is created. Programmers should link with that library and the yaz library
661 when using threads. The reason for the split was that some applications
662 on Linux, such as Apache, doesn't work well when using shared objects that
665 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
666 (or any frontend server) in SSL mode by specifying ssl: followed by
667 address. Only tested on UNIX.
669 Added feature for CCL module. Virtual structure s=al or s=ol generates
670 and-list and or-list respectively instead of phrase search.
674 * Added prefix "yaz_" for the functions log_init.., log_file.. and
675 log_mask_str. This was done to avoid name conflicts with other libraries
676 (such as other PHP extensions).
678 Added raw OID member for preferred record syntax (request_format_raw)
679 and returned record syntax (output_format_raw) for backend fetch method.
681 Config file yaz-config now accepts options so that it returns specific
682 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
684 Shared library support for UNIX using GNU libtool.
686 * Modified backend interface. Request/Response struct's replaced by
687 one read/write C struct. For example bend_fetchrequest and
688 bend_fetchresult have been replaced by single bend_fetch_rr struct.
689 Every handler - even search has to be registered in bend_init
690 handler. This means that the YAZ library no longer refers to
691 external functions and it makes it possible to make the whole
692 thing a single DLL/SO.
694 Added Segment handler for backend server.
696 Added Zmbol/Zebra administrative functions to YAZ client.
698 Threaded frontend server on UNIX (when POSIX Threads are available).
699 Starting the server with option -T enables multi-threading.
703 Added configure option --enable-comp/disable-comp to control use
704 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
705 located in sub directory asn.
707 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
708 in ${exec_prefix}/bin along with the other programs yaz-client and
711 GNU automake used to maintain makefiles.
715 Changed retrieval module so that we can load records with no abstract
716 syntax defined. Tagpaths in these records are fully composed of string
719 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
723 On UNIX, the generated makefile now supports a proper 'make install'.
724 The prefix can be set via GNU configure to set the install location
725 (default is /usr/local).
727 * YAZ programs client and ztest were renamed to yaz-client and
728 yaz-ztest to avoid conflicts when users install YAZ in "standard"
729 locations, such as /usr/bin,/usr/local/bin,etc.
731 * YAZ Header files were moved from include to include/yaz. YAZ Header
732 files are referred to as include <yaz/log.h> rather than <log.h>.
733 The YAZ include path (-I ..) is therefore the same as before. Programmers
734 should update their #include statements or use -Ipath/include/yaz
735 instead. The main motivation for doing this change is that YAZ header files
736 can be installed in "standard" locations /usr/include,/usr/local/include
737 without introducing conflicts, since ALL YAZ header files are stored
738 in subdirectory yaz (under /usr/include for example).
740 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
741 rather than project/workspace files. We switched because project files
742 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
745 Changed name of logging function, logf, to yaz_log, to prevent name
746 clash with some math-log functions. The YAZ header log.h defines logf
747 to yaz_log (#define) so there should be no incompatibilities by this
750 Added bend_start/bend_stop handlers for server. These handler are
751 called on start/stop of server. For windows they are called whenever
752 a service is started/stopped.
754 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
755 a fairly small ASN.1 compiler written in Tcl. The compiler is located
756 in util/yc.tcl. The auto-generated C code structures are, in a few
757 cases, incompatible with the old decoders. There are differences in the
758 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
759 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
760 The preprocessor variable ASN_COMPILED is defined when the compiled
761 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
762 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
763 wish to use the old encoders/decoders you can specify --disable-yc
766 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
767 version so that it supports both new - and old version of DB Update
769 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
770 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
771 change. The name parameter can be set to 0 in which no name is specified
772 for the construction. The macros odr_implicit and odr_explicit sets name
773 parameter to zero for the construction involved. New macros
774 odr_implicit_tag and odr_explicit_tag are similar to the others,
775 except that a name parameter is added. For programmers' that don't use
776 ODR they probably only need to change the call to z_APDU and z_External.
778 Added access control facility by interfacing the TCP wrapper library.
779 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
780 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
781 name of the daemon and enables the access control as specified in
782 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
784 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
785 den Dool <H.M.vdnDool@kub.nl>.
787 Added reference ID parameter to most functions in server API - refer
788 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
790 Changed name of ccl library to libccl.a (was ccl.a).
792 Fixed bug in decoder for Explain (Category TargetInfo).
794 Added support for GNU readline in client. Thanks to Jacob Poulsen
795 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
797 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
798 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
799 IMPLEMENTATION! This change was made to the development version before
800 the ZIG decided to retract the amendment. If any users MUST be
801 compatible with the original Update definition, PLEASE CONTACT US, and
802 we will include a separate definition corresponding to the old Update
803 ES. Note that because of the change to the ASN.1 of the
804 TaskPackageRecordStructure we cannot define a single structure that
805 will support both versions.
807 * Added const modifier to buffer parameter for some ODR/BER encoding
808 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
809 completeWAIS, odr_dumpBER.
811 Fixed bug in client.c which caused a crash when a scanResponse didn't
812 contain positionOfTerm.
814 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
815 * will cause an error in a client if a non-YAZ target sends both a
816 * list of Scan entries and non-surrogate diagnostics.
818 Retrieval module enhancements. Tag sets may be typed in the reference
819 to it. From the .abs-file the "tagset" directive takes a third optional
820 integer type for the tag set referenced. From a .tag-file the "include"
821 directive takes a third optional type as well. The old "type" directive
822 in the tag set itself is still recognized but acts as the default type
825 Backend interface change. Individual Scan terms returned from bend_scan
826 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
827 in include/backend.h.
829 Retrieval module enhancements. Multiple tag sets and attribute sets may
830 be specified in abstract syntax specs. Revised the error/warning for
831 logging messages reported by the retrieval module when reading the
834 Object Identifier system (oid_..) changed. The API is backwards
835 compatible but the oid-routines now allocates new OID's when needed.
836 Raw OID's may be specified in oid_getvalbyname.
838 YAZ now uses GNU configure to generate Makefile(s).
840 * Minor changes in some of the member names of DeleteResultSetRequest and
841 DeleteResultSetResponse. See include/proto.h.
843 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
844 and added member 'languages' in TargetInfo (which was missing).
846 Changed the way attribute sets are handled in the retrieval
847 module. These are now cached, just like the abstract syntaxes
850 Changed YAZ so that it links with compiled ASN.1.
852 Added Explain-schema definitions and mapping routines. The following
853 Explain categories have been implemented: AttributeDetails,
854 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
856 Fixed minor bug in Windows version of Server Library.
858 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
860 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
862 Added EXTERNAL: UNIverse Resource Report (non-standard).
864 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
865 ENUMERATED and SET OF.
867 * Added 'const' to some of the char pointer arguments for the
868 functions, data1_read_node, data1_getelementbytagname,
869 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
872 Fixed bug in data1_insert_taggeddata - the last_child member of
873 parent wasn't initialised.
875 * Changed data1_read_record and data1_read_node so that the supplied
876 "SGML"-buffer is read-only. In particular the resulting data1 - tree
877 doesn't refer to any parts of the "SGML"-buffer.
879 Fixed bug in server library (Windows version of statserv_remove).
881 * Changed code so that it compiles as C++. The type definition
882 of Odr_fun which is a member of Odr_arm was changed. The result is,
883 that an explicit typecast is needed for the fun pointer when
884 using Odr_arm - as in:
885 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
887 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
889 Implemented the new structured date and time definition as approved
890 by the ZIG. Added schemaId element to the specificTag in Espec-1
891 (also approved at the last ZIG). Thanks to RVDM.
893 Added some Object identifiers (RVDM).
895 Changed the Update Extended Service (RVDM).
897 Added command "refid" to client which specifies referenceId for
898 the following requests.
900 Implemented extended service handling for server. See ztest.c
901 for an example as well as backend.h. New handlers are registerd
904 * Changed interface for sort in server.
906 Added new members to statserv_options_block. It allows a server
907 to read options from another source than just the command line. Thanks
908 to Charles Woodfield.
910 * Changed definition of Z_Triple in file prt-grs.h - member boolean
911 renamed to zboolean. Some C++ compilers complained about the name.
913 Minor changes to gils.abs. Added index 's' (sort) on title
914 and date/time-last-modified.
918 Fixed bug in server library regarding inetd mode (-i). This bug
919 was introduced by release 1.4.
923 Added sort facility in client and backend server interface.
925 Fixed problem with dependencies in Makefile(s).
927 Fixed bugs for encoders/decoders of extended services and
930 Implemented sub-tree feature for schemas. Sub-trees are
931 referenced in *.abs-files. See explain.abs for an example
932 of the use of this feature.
934 Modified bib1.att; local attributes for ANY didn't include
935 ANY itself (only affects use of the retrieval module).
937 Fixed bug in plain SGML reader in function data1_read_node:
938 tags with prefix "var" was incorrectly interpreted as variants.
940 Added feature "sub-schemas" to enable references to - and definitions
941 of - group of elements.
943 * Removed member parent from type data1_element (in data1.h).
945 Implemented function odr_nullval() that returns the value of
948 * Removed member num_children from data1_node (in data1.h).
950 Made NT service interface part of the server library. The
951 function statserv_main uses the NT service when required and
952 calls the statserv_start / statserv_close routines.
954 Routine zget_SearchRequest and zget_PresentRequest fills
955 resultSetName/Id member with "default" instead of "Default".
957 Fixed memory leak in server. Request queue member wasn't freed.
959 Fixed nmem_exit so that memory is freed.
963 Revised the CCL parser utility to be thread safe.
965 Added function, oid_ent_to_oid, to replace the function
966 oid_getoidbyent, which is not thread safe.
968 * Added nmem_init and nmem_exit to initialize and release
969 NMEM resources. Function nmem_init should be called once in the
970 initial thread before NMEM/ODR is used. statserv.c and client.c
971 have been changed accordingly. The change was necessary to make
972 NMEM thread safe. The NMEM memory pool is shared amongst threads
973 in a process. Unix-based applications will still work fine without
976 Added NT Services interface for the the Z39.50 (statserv) Server.
977 Refer to the ztest.c source on the usage.
979 Windows 95/NT port using MSVC5.0. Project files are included in the
982 * Defined new 'global' handle for the retrieval (data1) system. The
983 new handled, data1_handle, describes the state of the data1 system.
984 This handle is passed as first argument to virtually all
985 data1 related routines. The functions data1_create and data1_destroy
986 creates and destroys a data1 handle respectively.
988 Added ODR encode stream member to all backend request structures
989 init, search, scan etc. This stream should be used to allocate all
990 memory used for the response when thread safe operation is needed.
992 Changed the comstack utility, cs_addstr, to be thread safe. The
993 returned hostname string returned by the function is now part the
996 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
997 function. The cs_straddr takes a COMSTACK handle as argument, so this
998 function must be used after cs_create and before bind/connect.
999 This function is thread safe.
1001 Moved test server to 'ztest' directory - generic server code still
1002 in 'server' directory.
1004 Made prefix query (pquery.c) utility thread safe.
1006 Added new function modifier YAZ_EXPORT to 'export' public DLL
1007 functions when using windows (see include/yconfig.h).
1009 Added definitions to the OID database (util/oid.c) (RVDM).
1011 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
1013 Added call to ccl_rpn_delete in client program.
1015 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
1016 release of RPN structure.
1018 Added support for C++, headers uses extern "C" for public definitions.
1019 With input from RVDM.
1021 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
1022 Thanks to Ronald van der Meer (RVDM).
1024 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
1026 Added support for private extensions to the OID database
1027 (oid_setprivateoids()). Thanks to RVDM.
1029 Added optional, physical ANY (key replication)
1031 Fixed null-reference problem in GRS-1 output filter.
1033 Proximity operator added to Prefix Query Format (PQF).
1035 In test client command "base" accepts multiple databases.
1037 Fixed bug in cs_close stack that caused trouble with WINSOCK.
1041 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1043 Smallish bug-fixes in the new encoders/decoders (explain).
1045 Bug fixed in DeleteRequest.
1047 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
1049 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1051 Added SOIF syntax (using private OID for now) to retrieval module and client.
1053 Added Update extended service.
1055 Added SearchResult-1 additional info structure.
1057 Added optional CCL (ISO8777) interpreter as separate module. Available
1060 --- 1.2 1996/6/10 (1st anniversary release)
1062 Added Summary record syntax. Lightly tested.
1064 Added OPAC record syntax. Untested.
1066 Added ResourceReport service encoders/decoders. Untested.
1068 Fixed bug in z_Unit - wrong tagging on unitSystem.
1070 Fixed bug in the DiagRecs decoder.
1072 Added options for max PDU size and session timeout to frontend-server.
1074 Added documentation of query-language parsers and other supporting utilities.
1076 [frontend-server] Added Attribute set to the bend_scanrequest API.
1078 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
1079 surrogate diagnostics were generated.
1081 [retrieval] Allow multiple local values for attribute.
1083 [retrieval] Allow multiple attributes per element in .abs files. index type.
1085 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
1087 --- 1.1pl2 1996/4/10
1089 Minor changes, mostly specific to Zebra's requirements (retrieval)
1093 Repaired bug in frontend server when running multiple listening
1094 endpoints in dynamic mode.
1096 z_External() now won't break if a known, ASN.1 value comes encapsulated
1097 in an octet-string. The value will pass through unmodified in an Odr_oct.
1099 Added a bit of code to the demo client to decode & display
1100 ASN.1-structured records represented in the octet-aligned branch of
1101 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
1103 Added z_ext_getentbyref() to the ASN module. Doc updated.
1105 * Completed the SCAN definition in the ASN module. This may break SCAN
1106 code based on older YAZ-versions at compile-time. The fix is easy -
1109 * Added 'displayTerm' and OtherInformation to the TermInfo structure
1110 under the SCAN definition. Remember to initialize this, server-people.
1112 Comstack should now support the WAIS protocol in TCP/IP mode. Note
1113 that this does not extend to ODR and ASN.
1115 Comstack allows insertion of established socket (primarily for
1116 inetd-operation of servers). Doc updated.
1118 Front-end server can now start from the inetd in TCP mode. Doc
1121 --- 1.0pl4 1996/1/24
1125 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
1126 the rank and record number.
1128 Adjustments to the frontend server.
1130 Fixed diagnostic BER dumper. It ignored the file argument.
1134 Various changes to retrieval module.
1136 Changed the union discriminators of the protocol files from enums to
1137 ints paired with #defines.
1139 *Changed oident.class to oident.oclass to avoid a reserved word in C++
1142 *Changed operator in the RPN structure to 'roperator', again to avoid a
1145 Fixed problems in Explain decoders/encoders.
1147 --- 1.0pl2 1995/12/6
1149 Memory bug in log module fixed.
1151 --- 1.0pl1 1995/12/5
1153 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1155 Bug in Explain DatabaseInfo module fixed.
1157 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1161 The shift to v1.0 signals that we now consider the *core* functionality
1162 of YAZ reasonably stable (the core being more or less equivalent to
1163 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1164 tested (Explain not at all - though that will happen soonish).
1166 Minor changes to code to support Windows port.
1168 Various minor changes after we're getting to use GRS-1 & co. more.
1170 Added Espec-1 format.
1172 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1173 of the protocol and it cannot be selected when encoding (maps into 'string'
1174 when decoding). Needed to talk to some servers.
1176 Demo client can request simple element set names.
1178 Added Diagnostic Format encoders/decoders.
1180 Added simple Close handling to frontend server (no hooks for resource
1181 reporting yet), and demonstration client.
1183 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1185 --- 1.0b3 1995/08/24
1187 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1188 handled incorrectly when records were requested in the searchResponse. This
1189 will only affect you if you use the frontend-server.
1191 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1192 Test-client will ask for and print GRS1. Ztest will return dummy records
1195 Added Explain encoders/decoders to the service-level API. Untested.
1197 Added Extended Services: Item Order encoders and decoders to the Service-
1198 level API. Untested. We could use a recent copy of the pertinent bits
1199 of the ILL protocol to add those bits.
1201 Added diagnostic format 1 encoders/decoders to the service-level API.
1204 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1205 odr_cons.c, which causes a more correct output.
1207 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1208 was always set to 0 when no records were requested in the searchRequest.
1210 * Added better external-handling. This shouldn't harm old code that
1211 *encodes* externals. It can break code that looks for a
1212 'single-ASN1-type' representation, since those types that are known
1213 are now decoded immediately. Look at the SUTRS sample code in
1214 seshigh.c and client.c. Documentation updated.
1216 Handling of structured records in bend_fetchresponse. Length -1 marks
1217 structured record, type is deduced from format field.
1219 --- 1.0b2 1995/06/27
1220 Fairly quick maintenance release to add SUTRS support.
1222 Fixed handling of SUTRS records in the demonstration client.
1224 * Added format field to the bend_fetchrequest and bend_fetchresponce
1225 structures of the backend API (frontend server). When the record is
1226 returned, the value of the format field is mapped to an OID. The
1227 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1228 of the record. The special value VAL_NONE in the bend_request means
1229 that no specific format was requested by the client. Documentation
1230 updated accordingly. Test server (ztest) will return a fixed dummy
1231 SUTRS record if your client requests SUTRS.
1233 Documentation updated accordingly.
1235 You can now set external libraries and RANLIB support in the top-level
1239 First public release.