1 Possible compatibility problems with earlier versions marked with '*'.
3 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
5 Added EXTERNAL: UNIverse Resource Report.
7 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
10 * Added 'const' to some of the char pointer arguments for the
11 functions, data1_read_node, data1_getelementbytagname,
12 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
15 Fixed bug in data1_insert_taggeddata - the last_child member of
16 parent wasn't initialised.
18 * Changed data1_read_record and data1_read_node so that the supplied
19 "SGML"-buffer is read-only. In particular the resulting data1 - tree
20 doesn't refer to any parts of the "SGML"-buffer.
22 Fixed bug in server library (Windows version of statserv_remove).
24 * Changed code so that it compiles as C++. The type definition
25 of Odr_fun which is a member of Odr_arm was changed. The result is,
26 that an explicit typecast is needed for the fun pointer when
27 using Odr_arm - as in:
28 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
30 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
32 Implemented the new structured date and time definition as approved
33 by the ZIG. Added schemaId element to the specificTag in Espec-1
34 (also approved at the last ZIG). Thanks to RVDM.
36 Added some Object identifiers (RVDM).
38 Changed the Update Extended Service (RVDM).
40 Added command "refid" to client which specifies referenceId for
41 the following requests.
43 Implemented extended service handling for server. See ztest.c
44 for an example as well as backend.h. New handlers are registerd
47 * Changed interface for sort in server.
49 Added new members to statserv_options_block. It allows a server
50 to read options from another source than just the command line. Thanks
53 * Changed definition of Z_Triple in file prt-grs.h - member boolean
54 renamed to zboolean. Some C++ compilers complained about the name.
56 Minor changes to gils.abs. Added index 's' (sort) on title
57 and date/time-last-modified.
61 Fixed bug in server library regarding inetd mode (-i). This bug
62 was introduced by release 1.4.
66 Added sort facility in client and backend server interface.
68 Fixed problem with dependencies in Makefile(s).
70 Fixed bugs for encoders/decoders of extended services and
73 Implemented sub-tree feature for schemas. Sub-trees are
74 referenced in *.abs-files. See explain.abs for an example
75 of the use of this feature.
77 Modified bib1.att; local attributes for ANY didn't include
78 ANY itself (only affects use of the retrieval module).
80 Fixed bug in plain SGML reader in function data1_read_node:
81 tags with prefix "var" was incorrectly interpreted as variants.
83 Added feature "sub-schemas" to enable references to - and definitions
84 of - group of elements.
86 * Removed member parent from type data1_element (in data1.h).
88 Implemented function odr_nullval() that returns the value of
91 * Removed member num_children from data1_node (in data1.h).
93 Made NT service interface part of the server library. The
94 function statserv_main uses the NT service when required and
95 calls the statserv_start / statserv_close routines.
97 Routine zget_SearchRequest and zget_PresentRequest fills
98 resultSetName/Id member with "default" instead of "Default".
100 Fixed memory leak in server. Request queue member wasn't freed.
102 Fixed nmem_exit so that memory is freed.
106 Revised the CCL parser utility to be thread safe.
108 Added function, oid_ent_to_oid, to replace the function
109 oid_getoidbyent, which is not thread safe.
111 * Added nmem_init and nmem_exit to initialize and release
112 NMEM resources. Function nmem_init should be called once in the
113 initial thread before NMEM/ODR is used. statserv.c and client.c
114 have been changed accordingly. The change was necessary to make
115 NMEM thread safe. The NMEM memory pool is shared amongst threads
116 in a process. Unix-based applications will still work fine without
119 Added NT Services interface for the the Z39.50 (statserv) Server.
120 Refer to the ztest.c source on the usage.
122 Windows 95/NT port using MSVC5.0. Project files are included in the
125 * Defined new 'global' handle for the retrieval (data1) system. The
126 new handled, data1_handle, describes the state of the data1 system.
127 This handle is passed as first argument to virtually all
128 data1 related routines. The functions data1_create and data1_destroy
129 creates and destroys a data1 handle respectively.
131 Added ODR encode stream member to all backend request structures
132 init, search, scan etc. This stream should be used to allocate all
133 memory used for the response when thread safe operation is needed.
135 Changed the comstack utility, cs_addstr, to be thread safe. The
136 returned hostname string returned by the function is now part the
139 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
140 function. The cs_straddr takes a COMSTACK handle as argument, so this
141 function must be used after cs_create and before bind/connect.
142 This function is thread safe.
144 Moved test server to 'ztest' directory - generic server code still
145 in 'server' directory.
147 Made prefix query (pquery.c) utility thread safe.
149 Added new function modifier YAZ_EXPORT to 'export' public DLL
150 functions when using windows (see include/yconfig.h).
152 Added definitions to the OID database (util/oid.c) (RVDM).
154 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
156 Added call to ccl_rpn_delete in client program.
158 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
159 release of RPN structure.
161 Added support for C++, headers uses extern "C" for public definitions.
162 With input from RVDM.
164 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
165 Thanks to Ronald van der Meer (RVDM).
167 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
169 Added support for private extensions to the OID database
170 (oid_setprivateoids()). Thanks to RVDM.
172 Added optional, physical ANY (key replication)
174 Fixed null-reference problem in GRS-1 output filter.
176 Proximity operator added to Prefix Query Format (PQF).
178 In test client command "base" accepts multiple databases.
180 Fixed bug in cs_close stack that caused trouble with WINSOCK.
184 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
186 Smallish bug-fixes in the new encoders/decoders (explain).
188 Bug fixed in DeleteRequest.
190 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
192 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
194 Added SOIF syntax (using private OID for now) to retrieval module and client.
196 Added Update extended service.
198 Added SearchResult-1 additional info structure.
200 Added optional CCL (ISO8777) interpreter as separate module. Available
203 --- 1.2 1996/6/10 (1st anniversary release)
205 Added Summary record syntax. Lightly tested.
207 Added OPAC record syntax. Untested.
209 Added ResourceReport service encoders/decoders. Untested.
211 Fixed bug in z_Unit - wrong tagging on unitSystem.
213 Fixed bug in the DiagRecs decoder.
215 Added options for max PDU size and session timeout to frontend-server.
217 Added documentation of query-language parsers and other supporting utilities.
219 [frontend-server] Added Attribute set to the bend_scanrequest API.
221 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
222 surrogate diagnostics were generated.
224 [retrieval] Allow multiple local values for attribute.
226 [retrieval] Allow multiple attributes per element in .abs files. index type.
228 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
232 Minor changes, mostly specific to Zebra's requirements (retrieval)
236 Repaired bug in frontend server when running multiple listening
237 endpoints in dynamic mode.
239 z_External() now won't break if a known, ASN.1 value comes encapsulated
240 in an octet-string. The value will pass through unmodified in an Odr_oct.
242 Added a bit of code to the demo client to decode & display
243 ASN.1-structured records represented in the octet-aligned branch of
244 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
246 Added z_ext_getentbyref() to the ASN module. Doc updated.
248 * Completed the SCAN definition in the ASN module. This may break SCAN
249 code based on older YAZ-versions at compile-time. The fix is easy -
252 * Added 'displayTerm' and OtherInformation to the TermInfo structure
253 under the SCAN definition. Remember to initialize this, server-people.
255 Comstack should now support the WAIS protocol in TCP/IP mode. Note
256 that this does not extend to ODR and ASN.
258 Comstack allows insertion of established socket (primarily for
259 inetd-operation of servers). Doc updated.
261 Front-end server can now start from the inetd in TCP mode. Doc
268 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
269 the rank and record number.
271 Adjustments to the frontend server.
273 Fixed diagnostic BER dumper. It ignored the file argument.
277 Various changes to retrieval module.
279 Changed the union discriminators of the protocol files from enums to
280 ints paired with #defines.
282 *Changed oident.class to oident.oclass to avoid a reserved word in C++
285 *Changed operator in the RPN structure to 'roperator', again to avoid a
288 Fixed problems in Explain decoders/encoders.
292 Memory bug in log module fixed.
296 Occasional malloc() of 0 bytes fixed in d1_espec.c.
298 Bug in Explain DatabaseInfo module fixed.
300 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
304 The shift to v1.0 signals that we now consider the *core* functionality
305 of YAZ reasonably stable (the core being more or less equivalent to
306 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
307 tested (Explain not at all - though that will happen soonish).
309 Minor changes to code to support Windows port.
311 Various minor changes after we're getting to use GRS-1 & co. more.
313 Added Espec-1 format.
315 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
316 of the protocol and it cannot be selected when encoding (maps into 'string'
317 when decoding). Needed to talk to some servers.
319 Demo client can request simple element set names.
321 Added Diagnostic Format encoders/decoders.
323 Added simple Close handling to frontend server (no hooks for resource
324 reporting yet), and demonstration client.
326 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
330 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
331 handled incorrectly when records were requested in the searchResponse. This
332 will only affect you if you use the frontend-server.
334 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
335 Test-client will ask for and print GRS1. Ztest will return dummy records
338 Added Explain encoders/decoders to the service-level API. Untested.
340 Added Extended Services: Item Order encoders and decoders to the Service-
341 level API. Untested. We could use a recent copy of the pertinent bits
342 of the ILL protocol to add those bits.
344 Added diagnostic format 1 encoders/decoders to the service-level API.
347 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
348 odr_cons.c, which causes a more correct output.
350 Fixed handling of searchRequest in frontend server. NextResultSetPosition
351 was always set to 0 when no records were requested in the searchRequest.
353 * Added better external-handling. This shouldn't harm old code that
354 *encodes* externals. It can break code that looks for a
355 'single-ASN1-type' representation, since those types that are known
356 are now decoded immediately. Look at the SUTRS sample code in
357 seshigh.c and client.c. Documentation updated.
359 Handling of structured records in bend_fetchresponse. Length -1 marks
360 structured record, type is deduced from format field.
363 Fairly quick maintenance release to add SUTRS support.
365 Fixed handling of SUTRS records in the demonstration client.
367 * Added format field to the bend_fetchrequest and bend_fetchresponce
368 structures of the backend API (frontend server). When the record is
369 returned, the value of the format field is mapped to an OID. The
370 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
371 of the record. The special value VAL_NONE in the bend_request means
372 that no specific format was requested by the client. Documentation
373 updated accordingly. Test server (ztest) will return a fixed dummy
374 SUTRS record if your client requests SUTRS.
376 Documentation updated accordingly.
378 You can now set external libraries and RANLIB support in the top-level
382 First public release.