1 Possible compatibility problems with earlier versions marked with '*'.
3 Added EXTERNAL: UNIverse Resource Report.
5 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
8 * Added 'const' to some of the char pointer arguments for the
9 functions, data1_read_node, data1_getelementbytagname,
10 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
13 Fixed bug in data1_insert_taggeddata - the last_child member of
14 parent wasn't initialised.
16 * Changed data1_read_record and data1_read_node so that the supplied
17 "SGML"-buffer is read-only. In particular the resulting data1 - tree
18 doesn't refer to any parts of the "SGML"-buffer.
20 Fixed bug in server library (Windows version of statserv_remove).
22 * Changed code so that it compiles as C++. The type definition
23 of Odr_fun which is a member of Odr_arm was changed. The result is,
24 that an explicit typecast is needed for the fun pointer when
25 using Odr_arm - as in:
26 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
28 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
30 Implemented the new structured date and time definition as approved
31 by the ZIG. Added schemaId element to the specificTag in Espec-1
32 (also approved at the last ZIG). Thanks to RVDM.
34 Added some Object identifiers (RVDM).
36 Changed the Update Extended Service (RVDM).
38 Added command "refid" to client which specifies referenceId for
39 the following requests.
41 Implemented extended service handling for server. See ztest.c
42 for an example as well as backend.h. New handlers are registerd
45 * Changed interface for sort in server.
47 Added new members to statserv_options_block. It allows a server
48 to read options from another source than just the command line. Thanks
51 * Changed definition of Z_Triple in file prt-grs.h - member boolean
52 renamed to zboolean. Some C++ compilers complained about the name.
54 Minor changes to gils.abs. Added index 's' (sort) on title
55 and date/time-last-modified.
59 Fixed bug in server library regarding inetd mode (-i). This bug
60 was introduced by release 1.4.
64 Added sort facility in client and backend server interface.
66 Fixed problem with dependencies in Makefile(s).
68 Fixed bugs for encoders/decoders of extended services and
71 Implemented sub-tree feature for schemas. Sub-trees are
72 referenced in *.abs-files. See explain.abs for an example
73 of the use of this feature.
75 Modified bib1.att; local attributes for ANY didn't include
76 ANY itself (only affects use of the retrieval module).
78 Fixed bug in plain SGML reader in function data1_read_node:
79 tags with prefix "var" was incorrectly interpreted as variants.
81 Added feature "sub-schemas" to enable references to - and definitions
82 of - group of elements.
84 * Removed member parent from type data1_element (in data1.h).
86 Implemented function odr_nullval() that returns the value of
89 * Removed member num_children from data1_node (in data1.h).
91 Made NT service interface part of the server library. The
92 function statserv_main uses the NT service when required and
93 calls the statserv_start / statserv_close routines.
95 Routine zget_SearchRequest and zget_PresentRequest fills
96 resultSetName/Id member with "default" instead of "Default".
98 Fixed memory leak in server. Request queue member wasn't freed.
100 Fixed nmem_exit so that memory is freed.
104 Revised the CCL parser utility to be thread safe.
106 Added function, oid_ent_to_oid, to replace the function
107 oid_getoidbyent, which is not thread safe.
109 * Added nmem_init and nmem_exit to initialize and release
110 NMEM resources. Function nmem_init should be called once in the
111 initial thread before NMEM/ODR is used. statserv.c and client.c
112 have been changed accordingly. The change was necessary to make
113 NMEM thread safe. The NMEM memory pool is shared amongst threads
114 in a process. Unix-based applications will still work fine without
117 Added NT Services interface for the the Z39.50 (statserv) Server.
118 Refer to the ztest.c source on the usage.
120 Windows 95/NT port using MSVC5.0. Project files are included in the
123 * Defined new 'global' handle for the retrieval (data1) system. The
124 new handled, data1_handle, describes the state of the data1 system.
125 This handle is passed as first argument to virtually all
126 data1 related routines. The functions data1_create and data1_destroy
127 creates and destroys a data1 handle respectively.
129 Added ODR encode stream member to all backend request structures
130 init, search, scan etc. This stream should be used to allocate all
131 memory used for the response when thread safe operation is needed.
133 Changed the comstack utility, cs_addstr, to be thread safe. The
134 returned hostname string returned by the function is now part the
137 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
138 function. The cs_straddr takes a COMSTACK handle as argument, so this
139 function must be used after cs_create and before bind/connect.
140 This function is thread safe.
142 Moved test server to 'ztest' directory - generic server code still
143 in 'server' directory.
145 Made prefix query (pquery.c) utility thread safe.
147 Added new function modifier YAZ_EXPORT to 'export' public DLL
148 functions when using windows (see include/yconfig.h).
150 Added definitions to the OID database (util/oid.c) (RVDM).
152 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
154 Added call to ccl_rpn_delete in client program.
156 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
157 release of RPN structure.
159 Added support for C++, headers uses extern "C" for public definitions.
160 With input from RVDM.
162 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
163 Thanks to Ronald van der Meer (RVDM).
165 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
167 Added support for private extensions to the OID database
168 (oid_setprivateoids()). Thanks to RVDM.
170 Added optional, physical ANY (key replication)
172 Fixed null-reference problem in GRS-1 output filter.
174 Proximity operator added to Prefix Query Format (PQF).
176 In test client command "base" accepts multiple databases.
178 Fixed bug in cs_close stack that caused trouble with WINSOCK.
182 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
184 Smallish bug-fixes in the new encoders/decoders (explain).
186 Bug fixed in DeleteRequest.
188 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
190 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
192 Added SOIF syntax (using private OID for now) to retrieval module and client.
194 Added Update extended service.
196 Added SearchResult-1 additional info structure.
198 Added optional CCL (ISO8777) interpreter as separate module. Available
201 --- 1.2 1996/6/10 (1st anniversary release)
203 Added Summary record syntax. Lightly tested.
205 Added OPAC record syntax. Untested.
207 Added ResourceReport service encoders/decoders. Untested.
209 Fixed bug in z_Unit - wrong tagging on unitSystem.
211 Fixed bug in the DiagRecs decoder.
213 Added options for max PDU size and session timeout to frontend-server.
215 Added documentation of query-language parsers and other supporting utilities.
217 [frontend-server] Added Attribute set to the bend_scanrequest API.
219 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
220 surrogate diagnostics were generated.
222 [retrieval] Allow multiple local values for attribute.
224 [retrieval] Allow multiple attributes per element in .abs files. index type.
226 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
230 Minor changes, mostly specific to Zebra's requirements (retrieval)
234 Repaired bug in frontend server when running multiple listening
235 endpoints in dynamic mode.
237 z_External() now won't break if a known, ASN.1 value comes encapsulated
238 in an octet-string. The value will pass through unmodified in an Odr_oct.
240 Added a bit of code to the demo client to decode & display
241 ASN.1-structured records represented in the octet-aligned branch of
242 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
244 Added z_ext_getentbyref() to the ASN module. Doc updated.
246 * Completed the SCAN definition in the ASN module. This may break SCAN
247 code based on older YAZ-versions at compile-time. The fix is easy -
250 * Added 'displayTerm' and OtherInformation to the TermInfo structure
251 under the SCAN definition. Remember to initialize this, server-people.
253 Comstack should now support the WAIS protocol in TCP/IP mode. Note
254 that this does not extend to ODR and ASN.
256 Comstack allows insertion of established socket (primarily for
257 inetd-operation of servers). Doc updated.
259 Front-end server can now start from the inetd in TCP mode. Doc
266 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
267 the rank and record number.
269 Adjustments to the frontend server.
271 Fixed diagnostic BER dumper. It ignored the file argument.
275 Various changes to retrieval module.
277 Changed the union discriminators of the protocol files from enums to
278 ints paired with #defines.
280 *Changed oident.class to oident.oclass to avoid a reserved word in C++
283 *Changed operator in the RPN structure to 'roperator', again to avoid a
286 Fixed problems in Explain decoders/encoders.
290 Memory bug in log module fixed.
294 Occasional malloc() of 0 bytes fixed in d1_espec.c.
296 Bug in Explain DatabaseInfo module fixed.
298 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
302 The shift to v1.0 signals that we now consider the *core* functionality
303 of YAZ reasonably stable (the core being more or less equivalent to
304 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
305 tested (Explain not at all - though that will happen soonish).
307 Minor changes to code to support Windows port.
309 Various minor changes after we're getting to use GRS-1 & co. more.
311 Added Espec-1 format.
313 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
314 of the protocol and it cannot be selected when encoding (maps into 'string'
315 when decoding). Needed to talk to some servers.
317 Demo client can request simple element set names.
319 Added Diagnostic Format encoders/decoders.
321 Added simple Close handling to frontend server (no hooks for resource
322 reporting yet), and demonstration client.
324 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
328 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
329 handled incorrectly when records were requested in the searchResponse. This
330 will only affect you if you use the frontend-server.
332 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
333 Test-client will ask for and print GRS1. Ztest will return dummy records
336 Added Explain encoders/decoders to the service-level API. Untested.
338 Added Extended Services: Item Order encoders and decoders to the Service-
339 level API. Untested. We could use a recent copy of the pertinent bits
340 of the ILL protocol to add those bits.
342 Added diagnostic format 1 encoders/decoders to the service-level API.
345 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
346 odr_cons.c, which causes a more correct output.
348 Fixed handling of searchRequest in frontend server. NextResultSetPosition
349 was always set to 0 when no records were requested in the searchRequest.
351 * Added better external-handling. This shouldn't harm old code that
352 *encodes* externals. It can break code that looks for a
353 'single-ASN1-type' representation, since those types that are known
354 are now decoded immediately. Look at the SUTRS sample code in
355 seshigh.c and client.c. Documentation updated.
357 Handling of structured records in bend_fetchresponse. Length -1 marks
358 structured record, type is deduced from format field.
361 Fairly quick maintenance release to add SUTRS support.
363 Fixed handling of SUTRS records in the demonstration client.
365 * Added format field to the bend_fetchrequest and bend_fetchresponce
366 structures of the backend API (frontend server). When the record is
367 returned, the value of the format field is mapped to an OID. The
368 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
369 of the record. The special value VAL_NONE in the bend_request means
370 that no specific format was requested by the client. Documentation
371 updated accordingly. Test server (ztest) will return a fixed dummy
372 SUTRS record if your client requests SUTRS.
374 Documentation updated accordingly.
376 You can now set external libraries and RANLIB support in the top-level
380 First public release.