1 Possible compatibility problems with earlier versions marked with '*'.
3 Fixed memory leak in server. Request queue member wasn't freed.
5 Fixed nmem_exit so that memory is freed.
9 Revised the CCL parser utility to be thread safe.
11 Added function, oid_ent_to_oid, to replace the function
12 oid_getoidbyent, which is not thread safe.
14 * Added nmem_init and nmem_exit to initialize and release
15 NMEM resources. Function nmem_init should be called once in the
16 initial thread before NMEM/ODR is used. statserv.c and client.c
17 have been changed accordingly. The change was necessary to make
18 NMEM thread safe. The NMEM memory pool is shared amongst threads
19 in a process. Unix-based applications will still work fine without
22 Added NT Services interface for the the Z39.50 (statserv) Server.
23 Refer to the ztest.c source on the usage.
25 Windows 95/NT port using MSV5.0. Project files are included in the
28 * Defined new 'global' handle for the retrieval (data1) system. The
29 new handled, data1_handle, describes the state of the data1 system.
30 This handle is passed as first argument to virtually all
31 data1 related routines. The functions data1_create and data1_destroy
32 creates and destroys a data1 handle respectively.
34 Added ODR encode stream member to all backend request structures
35 init, search, scan etc. This stream should be used to allocate all
36 memory used for the response when thread safe operation is needed.
38 Changed the comstack utility, cs_addstr, to be thread safe. The
39 returned hostname string returned by the function is now part the
42 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
43 function. The cs_straddr takes a COMSTACK handle as argument, so this
44 function must be used after cs_create and before bind/connect.
45 This function is thread safe.
47 Moved test server to 'ztest' directory - generic server code still
48 in 'server' directory.
50 Made prefix query (pquery.c) utility thread safe.
52 Added new function modifier YAZ_EXPORT to 'export' public DLL
53 functions when using windows (see include/yconfig.h).
55 Added definitions to the OID database (util/oid.c) (RVDM).
57 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
59 Added call to ccl_rpn_delete in client program.
61 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
62 release of RPN structure.
64 Added support for C++, headers uses extern "C" for public definitions.
67 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
68 Thanks to Ronald van der Meer (RVDM).
70 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
72 Added support for private extensions to the OID database
73 (oid_setprivateoids()). Thanks to RVDM.
75 Added optional, physical ANY (key replication)
77 Fixed null-reference problem in GRS-1 output filter.
79 Proximity operator added to Prefix Query Format (PQF).
81 In test client command "base" accepts multiple databases.
83 Fixed bug in cs_close stack that caused trouble with WINSOCK.
87 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
89 Smallish bug-fixes in the new encoders/decoders (explain).
91 Bug fixed in DeleteRequest.
93 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
95 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
97 Added SOIF syntax (using private OID for now) to retrieval module and client.
99 Added Update extended service.
101 Added SearchResult-1 additional info structure.
103 Added optional CCL (ISO8777) interpreter as separate module. Available
106 --- 1.2 1996/6/10 (1st anniversary release)
108 Added Summary record syntax. Lightly tested.
110 Added OPAC record syntax. Untested.
112 Added ResourceReport service encoders/decoders. Untested.
114 Fixed bug in z_Unit - wrong tagging on unitSystem.
116 Fixed bug in the DiagRecs decoder.
118 Added options for max PDU size and session timeout to frontend-server.
120 Added documentation of query-language parsers and other supporting utilities.
122 [frontend-server] Added Attribute set to the bend_scanrequest API.
124 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
125 surrogate diagnostics were generated.
127 [retrieval] Allow multiple local values for attribute.
129 [retrieval] Allow multiple attributes per element in .abs files. index type.
131 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
135 Minor changes, mostly specific to Zebra's requirements (retrieval)
139 Repaired bug in frontend server when running multiple listening
140 endpoints in dynamic mode.
142 z_External() now won't break if a known, ASN.1 value comes encapsulated
143 in an octet-string. The value will pass through unmodified in an Odr_oct.
145 Added a bit of code to the demo client to decode & display
146 ASN.1-structured records represented in the octet-aligned branch of
147 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
149 Added z_ext_getentbyref() to the ASN module. Doc updated.
151 * Completed the SCAN definition in the ASN module. This may break SCAN
152 code based on older YAZ-versions at compile-time. The fix is easy -
155 * Added 'displayTerm' and OtherInformation to the TermInfo structure
156 under the SCAN definition. Remember to initialize this, server-people.
158 Comstack should now support the WAIS protocol in TCP/IP mode. Note
159 that this does not extend to ODR and ASN.
161 Comstack allows insertion of established socket (primarily for
162 inetd-operation of servers). Doc updated.
164 Front-end server can now start from the inetd in TCP mode. Doc
171 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
172 the rank and record number.
174 Adjustments to the frontend server.
176 Fixed diagnostic BER dumper. It ignored the file argument.
180 Various changes to retrieval module.
182 Changed the union discriminators of the protocol files from enums to
183 ints paired with #defines.
185 *Changed oident.class to oident.oclass to avoid a reserved word in C++
188 *Changed operator in the RPN structure to 'roperator', again to avoid a
191 Fixed problems in Explain decoders/encoders.
195 Memory bug in log module fixed.
199 Occasional malloc() of 0 bytes fixed in d1_espec.c.
201 Bug in Explain DatabaseInfo module fixed.
203 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
207 The shift to v1.0 signals that we now consider the *core* functionality
208 of YAZ reasonably stable (the core being more or less equivalent to
209 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
210 tested (Explain not at all - though that will happen soonish).
212 Minor changes to code to support Windows port.
214 Various minor changes after we're getting to use GRS-1 & co. more.
216 Added Espec-1 format.
218 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
219 of the protocol and it cannot be selected when encoding (maps into 'string'
220 when decoding). Needed to talk to some servers.
222 Demo client can request simple element set names.
224 Added Diagnostic Format encoders/decoders.
226 Added simple Close handling to frontend server (no hooks for resource
227 reporting yet), and demonstration client.
229 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
233 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
234 handled incorrectly when records were requested in the searchResponse. This
235 will only affect you if you use the frontend-server.
237 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
238 Test-client will ask for and print GRS1. Ztest will return dummy records
241 Added Explain encoders/decoders to the service-level API. Untested.
243 Added Extended Services: Item Order encoders and decoders to the Service-
244 level API. Untested. We could use a recent copy of the pertinent bits
245 of the ILL protocol to add those bits.
247 Added diagnostic format 1 encoders/decoders to the service-level API.
250 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
251 odr_cons.c, which causes a more correct output.
253 Fixed handling of searchRequest in frontend server. NextResultSetPosition
254 was always set to 0 when no records were requested in the searchRequest.
256 * Added better external-handling. This shouldn't harm old code that
257 *encodes* externals. It can break code that looks for a
258 'single-ASN1-type' representation, since those types that are known
259 are now decoded immediately. Look at the SUTRS sample code in
260 seshigh.c and client.c. Documentation updated.
262 Handling of structured records in bend_fetchresponse. Length -1 marks
263 structured record, type is deduced from format field.
266 Fairly quick maintenance release to add SUTRS support.
268 Fixed handling of SUTRS records in the demonstration client.
270 * Added format field to the bend_fetchrequest and bend_fetchresponce
271 structures of the backend API (frontend server). When the record is
272 returned, the value of the format field is mapped to an OID. The
273 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
274 of the record. The special value VAL_NONE in the bend_request means
275 that no specific format was requested by the client. Documentation
276 updated accordingly. Test server (ztest) will return a fixed dummy
277 SUTRS record if your client requests SUTRS.
279 Documentation updated accordingly.
281 You can now set external libraries and RANLIB support in the top-level
285 First public release.