1 Possible compatibility problems with earlier versions marked with '*'.
5 Utility yaz-iconv is now installed by default along with the man page
8 Extend configure check for OpenSSL to use pkg-config where available (such
11 Incorporate patch by Morten Bogeskov which allows a Unix file socket
12 server to specify uid/gid/mask for socket using the format
13 unix:[user=uid,][group=gid,][umask=mask,]file=path
14 If file= is omitted the existing format is assumed, e.g.
16 in which case the mask is 0666 (rw for everybody).
18 Major restructure of YAZ source. All source in libyaz is in src directory.
19 Programs in client (yaz-client), ztest (yaz-ztest), zoom (zoom programs),
20 util (utility programs such as ASN.1 compiler, yaz-marcdump).
22 Added man page for utility yaz-marcdump (used to be called marcdump).
23 yaz-marcdump is installed by 'make install'.
25 Fixed a memory leak in Generic Frontend Server that occurred when decoding
26 of incoming package failed.
28 Fixed a potential DOS attack vulnerability in COMSTACK/ODR.
30 Change prototype of odr_perror: add const to message string.
32 New function yaz_log_reopen which reopens log file (for log rotate, etc.)
34 * Blocking parameter for COMSTACK cs_create is now a bit mask rather
35 than a blocking flag. Bit 0 is set for blocking, reset for non-blocking.
36 Bit 1 is set if cs_addrstr should avoid DNS lookup; reset for full
37 DNS lookup. There should not be any compatibility problems with this
38 assuming that blocking=1 or 0 is used.
40 Fix bad reference in UNIX comstack in function cs_addrstr.
42 Fix for compilation on AIX.
44 The generic front-end server (server/seshigh.c) now supports returning
45 Init diagnostics to the client in User-information-field, in
46 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
49 ZOOM-C supports "implementationId" and "implementationVersion" options
50 to go along with "implementationName". These allow the user code to
51 specify identification strings to be sent to servers.
56 Allow any CQL relation (not just all,any,exact,scr).
58 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
59 that features the same UI.
61 Implemented command update0 in YAZ client which is equivalent to
62 update but uses old of Ext Update ASN.1.
64 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
65 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
66 Previously no OID was used for this info.
68 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
69 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
70 returns 'malformed search term' otherwise.
72 SortResponse member resultCount now set to NULL in sort handler of
75 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
78 Add three new utility functions for translating OIDs between various
79 formats -- symbolic name such as "Usmarc", minus-1-terminated int
80 arrays and dotted strings such as "1.2.840.10003.9.5.1":
81 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
82 char *oid_to_dotstring(const int *oid, char *oidbuf);
83 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
85 Reverted modifications for ES Update definition for z_IU0Update
86 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
89 String value attributes for CCL parser.
91 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
92 which their FirstSearch server returns in Init responses, sometimes
93 carrying useful diagnostic information when Init fails. This has the
94 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
95 "z39.50/oclcui.asn", where its definition is somewhat different from
96 what OCLC document on their web-site, as required to interoperate with
99 Support for anonymous authentication in yaz-client. Use the command
102 * Fix the OID of the Index Data-local "admin" Extended Service from
103 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
104 the 1000, which indicates a locally-defined OID, was a mistake.
108 Fix CCL directive @case handling so that it affects string match for
109 both CCL keywords and qualifiers.
111 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
112 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
113 Decoder has been updated with ASN.1 changes as listed in
114 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
115 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
116 z_IUUpdate, remains unchanged.
118 ZOOM_record_get may now return a record in a specific character set.
119 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
120 "from" is the character set of record as returned by target. "to" is
121 the character set to be returned. If omitted, "to" is UTF-8.
123 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
125 New ODR utility, odr_getelement, which returns name of element for
126 which encoding/decoding failed.
128 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
129 in cases where a required element was omitted.
131 Bug fix: some MARC8 sequences were not converted.
133 New ZOOM option "step" which specifies number of records to be
134 retrieved in one chunk. Used in conjunction with "start" and "count".
136 SRW support for yaz-client. Use scheme http: to use it, e.g.
139 yaz-client no longer does (un)intelligent character set conversions
140 by default. Can be enabled with charset and marc_charset commands.
142 xmalloc trace fix for 64-bit systems such as DEC alpha.
144 Solaris 2.6 compile fix.
146 New function, cql_strerror() translates SRW error codes, as returned
147 by cql_transform_error(), into human-readable English strings. Used
148 in yaz-client diagnostics when appropriate.
150 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
151 converts it into a type-1 query which is sent to the server. This
152 makes CQL available for use with all Z-servers, as opposed to the tiny
153 minority that can handle CQL queries themselves.
157 New Debian package layout similar to the Redhat Package layout.
159 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
160 and search result respectively.
164 Redhat package is now several packages: libyaz (runtime libraries),
165 libyaz-devel (development and documentation, and yaz (utility programs).
166 Package spec file by Morten Bøgeskov.
168 New member 'schema' in struct bend_fetch_rr which the name of requested
169 schema (SRW/SRU) for record (or NULL if none was given). The fetch
170 handler MAY set this to reflect the schema of the returned record.
172 New member 'display_term' in struct scan_entry. GFS now sets member entries
173 and allocates scan entries to be filled by user scan handler. In previous
174 version, entries member was allocated by the scan handler. That still works,
175 but the GFS will ignore member display_term - assuming it was NOT set by
176 the handler. The fact that the GFS now allocates the entries both allows
177 for new members and makes a scan handler easier to write.
179 Fix CQL lex buffer overflow.
181 SRW/SRU recordPacking. For SRW default recordPacking is string. For
182 SRU default recordPacking is string.
184 SRU protocol support for frontend server.
186 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
188 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
190 Added scan for the ZOOM shell (zoomsh).
194 * String Identifers for Schemas (Amendment 5).
195 http://lcweb.loc.gov/z3950/agency/amend/am5.html
196 Old definition for schema
197 Odr_oid *schema; /* OPT */
202 Z_InternationalString *uri;
203 #define Z_Schema_oid 1
204 #define Z_Schema_uri 2
207 * resultCount parameter to Sort Response (Amendment 1).
208 http://lcweb.loc.gov/z3950/agency/amend/am1.html
210 Support for SRW 1.0 over HTTP. This is an optional feature and
211 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
214 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
215 on the same port. SRW SearchRetrieveRequests are mapped
216 to bend_init,bend_search,bend_fetch,bend_close.
218 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
220 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
221 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
223 ZOOM connections are SRW based if schem http is used for hostname
224 in connect, e.g. z = ZOOM_connection_new("http://myserver");
225 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
227 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
228 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
229 distance=n, order=true/false, relation=le, prox unit=word. If
230 n is omitted, distance 1 is used.
232 Fixed problem with C compiler include path in wrong order.
234 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
235 on Solaris. Patch from Ko van der Sloot.
237 New MARC decode API. All new functions operate on a yaz_marc_t
238 handle. The most important new functions are: yaz_marc_create,
239 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
240 decode and destroy respectively. Decoder can produce formats
241 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
242 include/yaz/marcdisp.h.
244 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
245 to UTF-8, UCS-32, wchar_t or Latin-1.
247 * Prototypes for yaz_iconv_-functions moved to separate header
248 include/yaz/yaz-iconv.h.
250 Make a few private functions 'static' in unix.c. This prevents
251 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
253 For ZOOM connection, the options targetImplementation{Id,Name,Version}
254 are set when Init Response is received.
256 New function ZOOM_connection_error_x similar to ZOOM_connection_error
257 but returns diagnostic set as well.
259 New function yaz_strerror which is a portable wrapper for
260 strerror/strerror_r/GetLastMessage.
262 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
263 is returned for MARC. If type is "oai", then OAI MARC is returned.
265 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
270 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
272 Fix bad race conditions on SIGTERM and terminate gracefully in
275 Move retrieval (data1) module to Zebra since nobody seems to be
278 Add GRS-1 render for ZOOM using same format as yaz-client.
282 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
284 Fix broken ESpec handling in data1 module.
286 SGML reader parses comments and makes them part of the data1 tree.
288 Added several type casts so that YAZ compiles as C++ code.
290 ZOOM didn't handle PDU encoding failures properly.
292 Added more Bib-1 diagnostics (approved extensions).
294 GNU configure: better check for iconv.
296 More portable use of accept, getpeername. Check for socklen_t. Use
297 int/size_t if socklen_t is not defined.
301 PQF parser rejects bad queries - including those with extra
302 characters in them. PQF parser used to silently ignore that.
303 Cleaner API for PQF added, which allows you to get detailed
304 error information for bad queries (see yaz/pquery.h).
306 Fixed bug in ZOOM_record_get for type "database".
308 Implemented mini iconv library supporting conversions between
309 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
311 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
315 Fixed ZOOM C record cache so that preferredRecordSyntax and
316 elementSetName is used to check for already fetched records.
320 Added three members in bend_initrequest structure to facilitate
321 character set negotiation.
323 Fixed a bug in frontend server that could cause indefinite
324 loops under rare conditions.
326 Revised character set utilities (charneg.h) so that encoding
327 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
329 For PQF, directive @term <type> sets term type for Scan/Search.
330 Here <type> is general, string, numeric, null. The term type
331 is inherited - just like @attr.
333 New call odr_set_charset that sets character set conversion for
334 international-strings on a ODR stream. Prototype is:
335 int odr_set_charset(ODR o, const char *to, const char *from);
336 The InternationalString is still represented as C string in YAZ
337 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
338 won't). On the protocol level, you can use any encoding.
340 Support for UNIX sockets in ZOOM.
342 Solaris recv sometimes returns errno == ENOENT. It is treated as
343 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
345 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
346 both client and server. Code by Morten Bøgeskov.
350 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
351 that they can be used directly from Visual Basic. You must recompile
352 your windows APP if you're using ZOOM.
354 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
355 Commands "lang" and "charset" sets language and character set respectively.
356 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
357 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
359 Attributes from multiple CCL fields may be OR'ed rather than merged
360 using directive "@field or". Fields are still merged by default -
361 equivalent to "@field merge".
363 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
366 Fixed bug in zget for parameter ExtendedServicesResponse.
372 Added PQF feature: '@attr type=value' may be written as '@type=value'.
374 Client displays USR.1:SearchResult-1 (hits per term).
376 Additional Search Info for search in Generic Frontend Server.
378 Fixed CCL parsing of "field=s".
380 WIN32 installer - using the excellent NSIS software from nullsoft.
382 Fixed CCL parsing of "field = - <number>".
384 Added function yaz_marc_decode that decodes MARC for line mode
385 display or XML (similar to that used by JZKit).
387 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
388 Z39.50. But ISO/ILL was, however.
390 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
391 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
393 http://lcweb.loc.gov/z3950/agency/amend/am2.html
394 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
398 New YAZ client features: Command completion and new commands:
399 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
400 Code provided by Jacob Poulsen.
402 New call oid_trav, that visits all registered OIDs via callback.
404 Function ZOOM_record_get now returns const char pointer rather than
405 void pointer. It saves a lot of type casts.
407 For YAZ client, command "auth" now allows you to set authentication
408 in IdPass style. It is enabled when three tokens are given - order
409 is user, group and password.
411 Fix memory leaks in MARC record handling for ZOOM.
413 New option for YAZ client, -k <kilobytes> that sets
414 maximum record size. Similar to -k option for generic frontend
415 server and yaz-ztest.
417 More fixes for scan. Non-zero stepSize handled. OID's fixes.
419 Prefix query parser reports "fail" when bad attribute set is given.
421 Fix in MARC decoder. Proximity logging. Fix for attribute set
422 in scan handler for server. Patches by Shigeru Ishida.
424 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
427 Configure option --with-openssl=<dir> now works when a directory is
428 specified. Patch provided by Morten Bøgeskov.
430 New option for YAZ client, -u <auth>, that sets authentication.
432 ZOOM fix: error information was sometimes "missing", since error
433 was cleared/reset too when it shouldn't.
435 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
439 Scan for ZOOM API. New object ZOOM_scanset. New functions
440 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
441 ZOOM_scanset_destroy.
443 New ZOOM function, ZOOM_connection_last_event, that returns type
444 of last event (such as "receive data", "send data", "apdu received",
447 New ZOOM option, schema, that specifies schema for retrieval.
449 New CCL feature. Qualifiers can be aliases for one or more
450 other qualifiers (if more than one is given, OR is used).
452 ZOOM uses named result sets if target supports it.
454 Two new YAZ client commands: . (dot, which sources a script of YAZ
455 client commands), and ! (to execute shell command.). Implemented
458 Working on Debian packages.
462 YAZ client enables named result sets only if target supports it.
464 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
466 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
467 with key="host" to get same result.
469 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
470 Function Z3950_resultset_record(s) returns references to records
471 "owned" by resultset. To become owner use Z3950_record_clone.
473 Function z_ext_record handles Extended Services. Thanks to
478 CCL Parser fix: ignore token comma when dealing with and-lists.
480 Documentation updates for COMSTACK.
482 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
483 Changed prototype Z3950_records. For some functions, int parameters
484 were changed to size_t.
486 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
489 New MARC decode/display function, marc_display_exl, which properly rejects
490 non-ISO2709 records. YAZ client uses it.
494 Fix bug: local attribute set wasn't set correctly in PQF strings.
498 * Old Z39.50 codecs no longer supported.
500 Added ZOOM C binding. See http://zoom.z3950.org/
502 Renamed states for COMSTACKs to avoid confusion with events.
504 Implemented cs_look and proper cs_rcvconnect.
506 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
508 Configure detects POSIX threads on OpenBSD.
510 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
511 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
513 When error is returned from present handler, non-surrogate diagnostic
514 is returned in present response (and fetch handler is no longer called).
516 * Minor adjustments to pquery parser (PQF). Token characters may be
517 escaped by using backslash (C-style).
519 PQF parser allows string attribute values to be specified. For @attr,
520 non-numeric characters after the equal-sign are treated as strings
521 (e.g. @attr 9=title).
523 CCL trunction character may be defined (@truncation in file)
525 * function zget_ExtendedServicesRequest sets waitAction to
526 waitIfPossible (was wait).
528 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
531 CCL operator names may be set in field definition files (CCL_bibset).
532 See ccl/bib1 for an example.
534 Fixes in ASN.1 compiler for C++ compatibility.
536 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
537 and "op_or" to avoid conflict with C++.
539 Fixed problem with GNU readline detection on Redhat 7.0.
541 Added step-size for Scan backend handler.
543 Fixed bug that made the frontend server crash when no attribute
544 set was specified for scan.
546 Front-end server automatically switches to original working directory
547 when installed as an NT service. Previously -w had to be specified to
550 Added extended attributes for retrieval module (data1), so that data1
551 records carry d1_readXML/SGML attributes. d1_read also supports
552 null-data rules ( <tag/>)
554 On UNIX when POSIX threads are available, a separate library libyazthread
555 is created. Programmers should link with that library and the yaz library
556 when using threads. The reason for the split was that some applications
557 on Linux, such as Apache, doesn't work well when using shared objects that
560 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
561 (or any frontend server) in SSL mode by specifying ssl: followed by
562 address. Only tested on UNIX.
564 Added feature for CCL module. Virtual structure s=al or s=ol generates
565 and-list and or-list respectively instead of phrase search.
569 * Added prefix "yaz_" for the functions log_init.., log_file.. and
570 log_mask_str. This was done to avoid name conflicts with other libraries
571 (such as other PHP extensions).
573 Added raw OID member for preferred record syntax (request_format_raw)
574 and returned record syntax (output_format_raw) for backend fetch method.
576 Config file yaz-config now accepts options so that it returns specific
577 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
579 Shared library support for UNIX using GNU libtool.
581 * Modified backend interface. Request/Response struct's replaced by
582 one read/write C struct. For example bend_fetchrequest and
583 bend_fetchresult have been replaced by single bend_fetch_rr struct.
584 Every handler - even search has to be registered in bend_init
585 handler. This means that the YAZ library no longer refers to
586 external functions and it makes it possible to make the whole
587 thing a single DLL/SO.
589 Added Segment handler for backend server.
591 Added Zmbol/Zebra administrative functions to YAZ client.
593 Threaded frontend server on UNIX (when POSIX Threads are available).
594 Starting the server with option -T enables multi-threading.
598 Added configure option --enable-comp/disable-comp to control use
599 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
600 located in sub directory asn.
602 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
603 in ${exec_prefix}/bin along with the other programs yaz-client and
606 GNU automake used to maintain makefiles.
610 Changed retrieval module so that we can load records with no abstract
611 syntax defined. Tagpaths in these records are fully composed of string
614 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
618 On UNIX, the generated makefile now supports a proper 'make install'.
619 The prefix can be set via GNU configure to set the install location
620 (default is /usr/local).
622 * YAZ programs client and ztest were renamed to yaz-client and
623 yaz-ztest to avoid conflicts when users install YAZ in "standard"
624 locations, such as /usr/bin,/usr/local/bin,etc.
626 * YAZ Header files were moved from include to include/yaz. YAZ Header
627 files are referred to as include <yaz/log.h> rather than <log.h>.
628 The YAZ include path (-I ..) is therefore the same as before. Programmers
629 should update their #include statements or use -Ipath/include/yaz
630 instead. The main motivation for doing this change is that YAZ header files
631 can be installed in "standard" locations /usr/include,/usr/local/include
632 without introducing conflicts, since ALL YAZ header files are stored
633 in subdirectory yaz (under /usr/include for example).
635 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
636 rather than project/workspace files. We switched because project files
637 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
640 Changed name of logging function, logf, to yaz_log, to prevent name
641 clash with some math-log functions. The YAZ header log.h defines logf
642 to yaz_log (#define) so there should be no incompatibilities by this
645 Added bend_start/bend_stop handlers for server. These handler are
646 called on start/stop of server. For windows they are called whenever
647 a service is started/stopped.
649 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
650 a fairly small ASN.1 compiler written in Tcl. The compiler is located
651 in util/yc.tcl. The auto-generated C code structures are, in a few
652 cases, incompatible with the old decoders. There are differences in the
653 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
654 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
655 The preprocessor variable ASN_COMPILED is defined when the compiled
656 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
657 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
658 wish to use the old encoders/decoders you can specify --disable-yc
661 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
662 version so that it supports both new - and old version of DB Update
664 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
665 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
666 change. The name parameter can be set to 0 in which no name is specified
667 for the construction. The macros odr_implicit and odr_explicit sets name
668 parameter to zero for the construction involved. New macros
669 odr_implicit_tag and odr_explicit_tag are similar to the others,
670 except that a name parameter is added. For programmers' that don't use
671 ODR they probably only need to change the call to z_APDU and z_External.
673 Added access control facility by interfacing the TCP wrapper library.
674 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
675 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
676 name of the daemon and enables the access control as specified in
677 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
679 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
680 den Dool <H.M.vdnDool@kub.nl>.
682 Added reference ID parameter to most functions in server API - refer
683 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
685 Changed name of ccl library to libccl.a (was ccl.a).
687 Fixed bug in decoder for Explain (Category TargetInfo).
689 Added support for GNU readline in client. Thanks to Jacob Poulsen
690 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
692 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
693 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
694 IMPLEMENTATION! This change was made to the development version before
695 the ZIG decided to retract the amendment. If any users MUST be
696 compatible with the original Update definition, PLEASE CONTACT US, and
697 we will include a separate definition corresponding to the old Update
698 ES. Note that because of the change to the ASN.1 of the
699 TaskPackageRecordStructure we cannot define a single structure that
700 will support both versions.
702 * Added const modifier to buffer parameter for some ODR/BER encoding
703 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
704 completeWAIS, odr_dumpBER.
706 Fixed bug in client.c which caused a crash when a scanResponse didn't
707 contain positionOfTerm.
709 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
710 * will cause an error in a client if a non-YAZ target sends both a
711 * list of Scan entries and non-surrogate diagnostics.
713 Retrieval module enhancements. Tag sets may be typed in the reference
714 to it. From the .abs-file the "tagset" directive takes a third optional
715 integer type for the tag set referenced. From a .tag-file the "include"
716 directive takes a third optional type as well. The old "type" directive
717 in the tag set itself is still recognized but acts as the default type
720 Backend interface change. Individual Scan terms returned from bend_scan
721 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
722 in include/backend.h.
724 Retrieval module enhancements. Multiple tag sets and attribute sets may
725 be specified in abstract syntax specs. Revised the error/warning for
726 logging messages reported by the retrieval module when reading the
729 Object Identifier system (oid_..) changed. The API is backwards
730 compatible but the oid-routines now allocates new OID's when needed.
731 Raw OID's may be specified in oid_getvalbyname.
733 YAZ now uses GNU configure to generate Makefile(s).
735 * Minor changes in some of the member names of DeleteResultSetRequest and
736 DeleteResultSetResponse. See include/proto.h.
738 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
739 and added member 'languages' in TargetInfo (which was missing).
741 Changed the way attribute sets are handled in the retrieval
742 module. These are now cached, just like the abstract syntaxes
745 Changed YAZ so that it links with compiled ASN.1.
747 Added Explain-schema definitions and mapping routines. The following
748 Explain categories have been implemented: AttributeDetails,
749 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
751 Fixed minor bug in Windows version of Server Library.
753 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
755 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
757 Added EXTERNAL: UNIverse Resource Report (non-standard).
759 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
760 ENUMERATED and SET OF.
762 * Added 'const' to some of the char pointer arguments for the
763 functions, data1_read_node, data1_getelementbytagname,
764 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
767 Fixed bug in data1_insert_taggeddata - the last_child member of
768 parent wasn't initialised.
770 * Changed data1_read_record and data1_read_node so that the supplied
771 "SGML"-buffer is read-only. In particular the resulting data1 - tree
772 doesn't refer to any parts of the "SGML"-buffer.
774 Fixed bug in server library (Windows version of statserv_remove).
776 * Changed code so that it compiles as C++. The type definition
777 of Odr_fun which is a member of Odr_arm was changed. The result is,
778 that an explicit typecast is needed for the fun pointer when
779 using Odr_arm - as in:
780 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
782 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
784 Implemented the new structured date and time definition as approved
785 by the ZIG. Added schemaId element to the specificTag in Espec-1
786 (also approved at the last ZIG). Thanks to RVDM.
788 Added some Object identifiers (RVDM).
790 Changed the Update Extended Service (RVDM).
792 Added command "refid" to client which specifies referenceId for
793 the following requests.
795 Implemented extended service handling for server. See ztest.c
796 for an example as well as backend.h. New handlers are registerd
799 * Changed interface for sort in server.
801 Added new members to statserv_options_block. It allows a server
802 to read options from another source than just the command line. Thanks
803 to Charles Woodfield.
805 * Changed definition of Z_Triple in file prt-grs.h - member boolean
806 renamed to zboolean. Some C++ compilers complained about the name.
808 Minor changes to gils.abs. Added index 's' (sort) on title
809 and date/time-last-modified.
813 Fixed bug in server library regarding inetd mode (-i). This bug
814 was introduced by release 1.4.
818 Added sort facility in client and backend server interface.
820 Fixed problem with dependencies in Makefile(s).
822 Fixed bugs for encoders/decoders of extended services and
825 Implemented sub-tree feature for schemas. Sub-trees are
826 referenced in *.abs-files. See explain.abs for an example
827 of the use of this feature.
829 Modified bib1.att; local attributes for ANY didn't include
830 ANY itself (only affects use of the retrieval module).
832 Fixed bug in plain SGML reader in function data1_read_node:
833 tags with prefix "var" was incorrectly interpreted as variants.
835 Added feature "sub-schemas" to enable references to - and definitions
836 of - group of elements.
838 * Removed member parent from type data1_element (in data1.h).
840 Implemented function odr_nullval() that returns the value of
843 * Removed member num_children from data1_node (in data1.h).
845 Made NT service interface part of the server library. The
846 function statserv_main uses the NT service when required and
847 calls the statserv_start / statserv_close routines.
849 Routine zget_SearchRequest and zget_PresentRequest fills
850 resultSetName/Id member with "default" instead of "Default".
852 Fixed memory leak in server. Request queue member wasn't freed.
854 Fixed nmem_exit so that memory is freed.
858 Revised the CCL parser utility to be thread safe.
860 Added function, oid_ent_to_oid, to replace the function
861 oid_getoidbyent, which is not thread safe.
863 * Added nmem_init and nmem_exit to initialize and release
864 NMEM resources. Function nmem_init should be called once in the
865 initial thread before NMEM/ODR is used. statserv.c and client.c
866 have been changed accordingly. The change was necessary to make
867 NMEM thread safe. The NMEM memory pool is shared amongst threads
868 in a process. Unix-based applications will still work fine without
871 Added NT Services interface for the the Z39.50 (statserv) Server.
872 Refer to the ztest.c source on the usage.
874 Windows 95/NT port using MSVC5.0. Project files are included in the
877 * Defined new 'global' handle for the retrieval (data1) system. The
878 new handled, data1_handle, describes the state of the data1 system.
879 This handle is passed as first argument to virtually all
880 data1 related routines. The functions data1_create and data1_destroy
881 creates and destroys a data1 handle respectively.
883 Added ODR encode stream member to all backend request structures
884 init, search, scan etc. This stream should be used to allocate all
885 memory used for the response when thread safe operation is needed.
887 Changed the comstack utility, cs_addstr, to be thread safe. The
888 returned hostname string returned by the function is now part the
891 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
892 function. The cs_straddr takes a COMSTACK handle as argument, so this
893 function must be used after cs_create and before bind/connect.
894 This function is thread safe.
896 Moved test server to 'ztest' directory - generic server code still
897 in 'server' directory.
899 Made prefix query (pquery.c) utility thread safe.
901 Added new function modifier YAZ_EXPORT to 'export' public DLL
902 functions when using windows (see include/yconfig.h).
904 Added definitions to the OID database (util/oid.c) (RVDM).
906 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
908 Added call to ccl_rpn_delete in client program.
910 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
911 release of RPN structure.
913 Added support for C++, headers uses extern "C" for public definitions.
914 With input from RVDM.
916 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
917 Thanks to Ronald van der Meer (RVDM).
919 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
921 Added support for private extensions to the OID database
922 (oid_setprivateoids()). Thanks to RVDM.
924 Added optional, physical ANY (key replication)
926 Fixed null-reference problem in GRS-1 output filter.
928 Proximity operator added to Prefix Query Format (PQF).
930 In test client command "base" accepts multiple databases.
932 Fixed bug in cs_close stack that caused trouble with WINSOCK.
936 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
938 Smallish bug-fixes in the new encoders/decoders (explain).
940 Bug fixed in DeleteRequest.
942 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
944 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
946 Added SOIF syntax (using private OID for now) to retrieval module and client.
948 Added Update extended service.
950 Added SearchResult-1 additional info structure.
952 Added optional CCL (ISO8777) interpreter as separate module. Available
955 --- 1.2 1996/6/10 (1st anniversary release)
957 Added Summary record syntax. Lightly tested.
959 Added OPAC record syntax. Untested.
961 Added ResourceReport service encoders/decoders. Untested.
963 Fixed bug in z_Unit - wrong tagging on unitSystem.
965 Fixed bug in the DiagRecs decoder.
967 Added options for max PDU size and session timeout to frontend-server.
969 Added documentation of query-language parsers and other supporting utilities.
971 [frontend-server] Added Attribute set to the bend_scanrequest API.
973 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
974 surrogate diagnostics were generated.
976 [retrieval] Allow multiple local values for attribute.
978 [retrieval] Allow multiple attributes per element in .abs files. index type.
980 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
984 Minor changes, mostly specific to Zebra's requirements (retrieval)
988 Repaired bug in frontend server when running multiple listening
989 endpoints in dynamic mode.
991 z_External() now won't break if a known, ASN.1 value comes encapsulated
992 in an octet-string. The value will pass through unmodified in an Odr_oct.
994 Added a bit of code to the demo client to decode & display
995 ASN.1-structured records represented in the octet-aligned branch of
996 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
998 Added z_ext_getentbyref() to the ASN module. Doc updated.
1000 * Completed the SCAN definition in the ASN module. This may break SCAN
1001 code based on older YAZ-versions at compile-time. The fix is easy -
1004 * Added 'displayTerm' and OtherInformation to the TermInfo structure
1005 under the SCAN definition. Remember to initialize this, server-people.
1007 Comstack should now support the WAIS protocol in TCP/IP mode. Note
1008 that this does not extend to ODR and ASN.
1010 Comstack allows insertion of established socket (primarily for
1011 inetd-operation of servers). Doc updated.
1013 Front-end server can now start from the inetd in TCP mode. Doc
1016 --- 1.0pl4 1996/1/24
1020 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
1021 the rank and record number.
1023 Adjustments to the frontend server.
1025 Fixed diagnostic BER dumper. It ignored the file argument.
1029 Various changes to retrieval module.
1031 Changed the union discriminators of the protocol files from enums to
1032 ints paired with #defines.
1034 *Changed oident.class to oident.oclass to avoid a reserved word in C++
1037 *Changed operator in the RPN structure to 'roperator', again to avoid a
1040 Fixed problems in Explain decoders/encoders.
1042 --- 1.0pl2 1995/12/6
1044 Memory bug in log module fixed.
1046 --- 1.0pl1 1995/12/5
1048 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1050 Bug in Explain DatabaseInfo module fixed.
1052 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1056 The shift to v1.0 signals that we now consider the *core* functionality
1057 of YAZ reasonably stable (the core being more or less equivalent to
1058 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1059 tested (Explain not at all - though that will happen soonish).
1061 Minor changes to code to support Windows port.
1063 Various minor changes after we're getting to use GRS-1 & co. more.
1065 Added Espec-1 format.
1067 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1068 of the protocol and it cannot be selected when encoding (maps into 'string'
1069 when decoding). Needed to talk to some servers.
1071 Demo client can request simple element set names.
1073 Added Diagnostic Format encoders/decoders.
1075 Added simple Close handling to frontend server (no hooks for resource
1076 reporting yet), and demonstration client.
1078 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1080 --- 1.0b3 1995/08/24
1082 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1083 handled incorrectly when records were requested in the searchResponse. This
1084 will only affect you if you use the frontend-server.
1086 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1087 Test-client will ask for and print GRS1. Ztest will return dummy records
1090 Added Explain encoders/decoders to the service-level API. Untested.
1092 Added Extended Services: Item Order encoders and decoders to the Service-
1093 level API. Untested. We could use a recent copy of the pertinent bits
1094 of the ILL protocol to add those bits.
1096 Added diagnostic format 1 encoders/decoders to the service-level API.
1099 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1100 odr_cons.c, which causes a more correct output.
1102 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1103 was always set to 0 when no records were requested in the searchRequest.
1105 * Added better external-handling. This shouldn't harm old code that
1106 *encodes* externals. It can break code that looks for a
1107 'single-ASN1-type' representation, since those types that are known
1108 are now decoded immediately. Look at the SUTRS sample code in
1109 seshigh.c and client.c. Documentation updated.
1111 Handling of structured records in bend_fetchresponse. Length -1 marks
1112 structured record, type is deduced from format field.
1114 --- 1.0b2 1995/06/27
1115 Fairly quick maintenance release to add SUTRS support.
1117 Fixed handling of SUTRS records in the demonstration client.
1119 * Added format field to the bend_fetchrequest and bend_fetchresponce
1120 structures of the backend API (frontend server). When the record is
1121 returned, the value of the format field is mapped to an OID. The
1122 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1123 of the record. The special value VAL_NONE in the bend_request means
1124 that no specific format was requested by the client. Documentation
1125 updated accordingly. Test server (ztest) will return a fixed dummy
1126 SUTRS record if your client requests SUTRS.
1128 Documentation updated accordingly.
1130 You can now set external libraries and RANLIB support in the top-level
1134 First public release.