2 * Copyright (c) 1995-1999, Index Data.
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.21 1999-05-26 14:47:12 adam
8 * Implemented z_ext_record.
10 * Revision 1.20 1999/04/20 09:56:48 adam
11 * Added 'name' paramter to encoder/decoder routines (typedef Odr_fun).
12 * Modified all encoders/decoders to reflect this change.
14 * Revision 1.19 1998/03/31 15:13:19 adam
15 * Development towards compiled ASN.1.
17 * Revision 1.18 1998/03/31 11:07:44 adam
18 * Furhter work on UNIverse resource report.
19 * Added Extended Services handling in frontend server.
21 * Revision 1.17 1998/03/20 14:46:06 adam
22 * Added UNIverse Resource Reports.
24 * Revision 1.16 1998/02/11 11:53:32 adam
25 * Changed code so that it compiles as C++.
27 * Revision 1.15 1998/02/10 15:31:46 adam
28 * Implemented date and time structure. Changed the Update Extended
31 * Revision 1.14 1998/01/05 09:04:57 adam
32 * Fixed bugs in encoders/decoders - Not operator (!) missing.
34 * Revision 1.13 1997/05/14 06:53:22 adam
37 * Revision 1.12 1997/04/30 08:52:02 quinn
40 * Revision 1.11 1996/10/10 12:35:13 quinn
41 * Added Update extended service.
43 * Revision 1.10 1996/10/09 15:54:55 quinn
44 * Added SearchInfoReport
46 * Revision 1.9 1996/06/10 08:53:36 quinn
47 * Added Summary,OPAC,ResourceReport
49 * Revision 1.8 1996/02/20 12:51:44 quinn
50 * Completed SCAN. Fixed problems with EXTERNAL.
52 * Revision 1.7 1995/10/12 10:34:38 quinn
55 * Revision 1.6 1995/09/29 17:11:55 quinn
58 * Revision 1.5 1995/09/27 15:02:42 quinn
59 * Modified function heads & prototypes.
61 * Revision 1.4 1995/08/29 11:17:16 quinn
62 * *** empty log message ***
64 * Revision 1.3 1995/08/21 09:10:18 quinn
65 * Smallish fixes to suppport new formats.
67 * Revision 1.2 1995/08/17 12:45:00 quinn
68 * Fixed minor problems with GRS-1. Added support in c&s.
70 * Revision 1.1 1995/08/15 13:37:41 quinn
79 * The table below should be moved to the ODR structure itself and
80 * be an image of the association context: To help
81 * map indirect references when they show up.
83 static Z_ext_typeent type_table[] =
85 {VAL_SUTRS, Z_External_sutrs, (Odr_fun) z_SUTRS},
86 {VAL_EXPLAIN, Z_External_explainRecord, (Odr_fun)z_ExplainRecord},
87 {VAL_RESOURCE1, Z_External_resourceReport1, (Odr_fun)z_ResourceReport1},
88 {VAL_RESOURCE2, Z_External_resourceReport2, (Odr_fun)z_ResourceReport2},
89 {VAL_PROMPT1, Z_External_promptObject1, (Odr_fun)z_PromptObject1 },
90 {VAL_GRS1, Z_External_grs1, (Odr_fun)z_GenericRecord},
91 {VAL_EXTENDED, Z_External_extendedService, (Odr_fun)z_TaskPackage},
93 {VAL_ITEMORDER, Z_External_itemOrder, (Odr_fun)z_IOItemOrder},
95 {VAL_ITEMORDER, Z_External_itemOrder, (Odr_fun)z_ItemOrder},
97 {VAL_DIAG1, Z_External_diag1, (Odr_fun)z_DiagnosticFormat},
98 {VAL_ESPEC1, Z_External_espec1, (Odr_fun)z_Espec1},
99 {VAL_SUMMARY, Z_External_summary, (Odr_fun)z_BriefBib},
100 {VAL_OPAC, Z_External_OPAC, (Odr_fun)z_OPACRecord},
101 {VAL_SEARCHRES1, Z_External_searchResult1, (Odr_fun)z_SearchInfoReport},
102 {VAL_DBUPDATE, Z_External_update, (Odr_fun)z_IUUpdate},
103 {VAL_DATETIME, Z_External_dateTime, (Odr_fun)z_DateTime},
104 {VAL_UNIVERSE_REPORT, Z_External_universeReport, (Odr_fun)z_UniverseReport},
108 Z_ext_typeent *z_ext_getentbyref(oid_value val)
112 for (i = type_table; i->dref != VAL_NONE; i++)
118 int z_External(ODR o, Z_External **p, int opt, const char *name)
123 static Odr_arm arm[] =
125 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_single,
126 (Odr_fun)odr_any, 0},
127 {ODR_IMPLICIT, ODR_CONTEXT, 1, Z_External_octet,
128 (Odr_fun)odr_octetstring, 0},
129 {ODR_IMPLICIT, ODR_CONTEXT, 2, Z_External_arbitrary,
130 (Odr_fun)odr_bitstring, 0},
131 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_sutrs,
132 (Odr_fun)z_SUTRS, 0},
133 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_explainRecord,
134 (Odr_fun)z_ExplainRecord, 0},
135 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_resourceReport1,
136 (Odr_fun)z_ResourceReport1, 0},
137 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_resourceReport2,
138 (Odr_fun)z_ResourceReport2, 0},
139 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_promptObject1,
140 (Odr_fun)z_PromptObject1, 0},
141 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_grs1,
142 (Odr_fun)z_GenericRecord, 0},
143 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_extendedService,
144 (Odr_fun)z_TaskPackage, 0},
146 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_itemOrder,
147 (Odr_fun)z_IOItemOrder, 0},
149 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_itemOrder,
150 (Odr_fun)z_ItemOrder, 0},
152 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_diag1,
153 (Odr_fun)z_DiagnosticFormat, 0},
154 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_espec1,
155 (Odr_fun)z_Espec1, 0},
156 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_summary,
157 (Odr_fun)z_BriefBib, 0},
158 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_OPAC,
159 (Odr_fun)z_OPACRecord, 0},
160 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_searchResult1,
161 (Odr_fun)z_SearchInfoReport, 0},
162 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_update,
163 (Odr_fun)z_IUUpdate, 0},
164 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_dateTime,
165 (Odr_fun)z_DateTime, 0},
166 {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_universeReport,
167 (Odr_fun)z_UniverseReport, 0},
168 {-1, -1, -1, -1, 0, 0}
171 odr_implicit_settag(o, ODR_UNIVERSAL, ODR_EXTERNAL);
172 if (!odr_sequence_begin(o, p, sizeof(**p), name))
173 return opt && odr_ok(o);
174 if (!(odr_oid(o, &(*p)->direct_reference, 1, 0) &&
175 odr_integer(o, &(*p)->indirect_reference, 1, 0) &&
176 odr_graphicstring(o, &(*p)->descriptor, 1, 0)))
179 * Do we know this beast?
181 if (o->direction == ODR_DECODE && (*p)->direct_reference &&
182 (oid = oid_getentbyoid((*p)->direct_reference)) &&
183 (type = z_ext_getentbyref(oid->value)))
185 int zclass, tag, cons;
188 * We know it. If it's represented as an ASN.1 type, bias the CHOICE.
190 if (!odr_peektag(o, &zclass, &tag, &cons))
191 return opt && odr_ok(o);
192 if (zclass == ODR_CONTEXT && tag == 0 && cons == 1)
193 odr_choice_bias(o, type->what);
196 odr_choice(o, arm, &(*p)->u, &(*p)->which, name) &&
200 Z_External *z_ext_record(ODR o, int format, const char *buf, int len)
206 thisext = (Z_External *) odr_malloc(o, sizeof(*thisext));
207 thisext->descriptor = 0;
208 thisext->indirect_reference = 0;
210 recform.proto = PROTO_Z3950;
211 recform.oclass = CLASS_RECSYN;
212 recform.value = (enum oid_value) format;
213 if (!oid_ent_to_oid(&recform, oid))
215 thisext->direct_reference = odr_oiddup(o, oid);
216 thisext->indirect_reference = 0;
217 thisext->descriptor = 0;
219 if (len < 0) /* Structured data */
224 thisext->which = Z_External_sutrs;
227 thisext->which = Z_External_grs1;
230 thisext->which = Z_External_explainRecord;
233 thisext->which = Z_External_summary;
236 thisext->which = Z_External_OPAC;
243 * We cheat on the pointers here. Obviously, the record field
244 * of the backend-fetch structure should have been a union for
245 * correctness, but we're stuck with this for backwards
248 thisext->u.grs1 = (Z_GenericRecord*) buf;
250 else if (format == VAL_SUTRS) /* SUTRS is a single-ASN.1-type */
252 Odr_oct *sutrs = (Odr_oct *)odr_malloc(o, sizeof(*sutrs));
254 thisext->which = Z_External_sutrs;
255 thisext->u.sutrs = sutrs;
256 sutrs->buf = (unsigned char *)odr_malloc(o, len);
257 sutrs->len = sutrs->size = len;
258 memcpy(sutrs->buf, buf, len);
262 thisext->which = Z_External_octet;
263 if (!(thisext->u.octet_aligned = (Odr_oct *)
264 odr_malloc(o, sizeof(Odr_oct))))
266 if (!(thisext->u.octet_aligned->buf = (unsigned char *)
269 memcpy(thisext->u.octet_aligned->buf, buf, len);
270 thisext->u.octet_aligned->len = thisext->u.octet_aligned->size = len;