* Copyright (C) 1995-2005, Index Data ApS
* See the file LICENSE for details.
*
- * $Id: prt-ext.c,v 1.4 2005-01-15 19:47:14 adam Exp $
+ * $Id: prt-ext.c,v 1.6 2005-06-25 15:46:04 adam Exp $
*/
/**
#include <yaz/proto.h>
+#define PRT_EXT_DEBUG 0
+
+#if PRT_EXT_DEBUG
+#include <yaz/log.h>
+#endif
+
/*
* The table below should be moved to the ODR structure itself and
* be an image of the association context: To help
Z_ext_typeent *i;
for (i = type_table; i->dref != VAL_NONE; i++)
- if (i->dref == val)
- return i;
+ if (i->dref == val)
+ return i;
return 0;
}
+/**
+ This routine is the BER codec for the EXTERNAL type.
+ It handles information in single-ASN1-type and octet-aligned
+ for known structures.
+
+ <pre>
+ [UNIVERSAL 8] IMPLICIT SEQUENCE {
+ direct-reference OBJECT IDENTIFIER OPTIONAL,
+ indirect-reference INTEGER OPTIONAL,
+ data-value-descriptor ObjectDescriptor OPTIONAL,
+ encoding CHOICE {
+ single-ASN1-type [0] ABSTRACT_SYNTAX.&Type,
+ octet-aligned [1] IMPLICIT OCTET STRING,
+ arbitrary [2] IMPLICIT BIT STRING
+ }
+ }
+ </pre>
+ arbitrary BIT STRING not handled yet.
+*/
int z_External(ODR o, Z_External **p, int opt, const char *name)
{
oident *oid;
static Odr_arm arm[] =
{
- {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_single,
- (Odr_fun)odr_any, 0},
- {ODR_IMPLICIT, ODR_CONTEXT, 1, Z_External_octet,
- (Odr_fun)odr_octetstring, 0},
- {ODR_IMPLICIT, ODR_CONTEXT, 2, Z_External_arbitrary,
- (Odr_fun)odr_bitstring, 0},
- {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_sutrs,
- (Odr_fun)z_SUTRS, 0},
- {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_explainRecord,
- (Odr_fun)z_ExplainRecord, 0},
-
- {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_resourceReport1,
- (Odr_fun)z_ResourceReport1, 0},
- {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_resourceReport2,
- (Odr_fun)z_ResourceReport2, 0},
- {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_promptObject1,
- (Odr_fun)z_PromptObject1, 0},
- {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_grs1,
- (Odr_fun)z_GenericRecord, 0},
- {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_extendedService,
- (Odr_fun)z_TaskPackage, 0},
-
- {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_itemOrder,
- (Odr_fun)z_IOItemOrder, 0},
- {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_diag1,
- (Odr_fun)z_DiagnosticFormat, 0},
- {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_espec1,
- (Odr_fun)z_Espec1, 0},
- {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_summary,
- (Odr_fun)z_BriefBib, 0},
- {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_OPAC,
- (Odr_fun)z_OPACRecord, 0},
-
- {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_searchResult1,
- (Odr_fun)z_SearchInfoReport, 0},
- {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_update,
- (Odr_fun)z_IUUpdate, 0},
- {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_dateTime,
- (Odr_fun)z_DateTime, 0},
- {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_universeReport,
- (Odr_fun)z_UniverseReport, 0},
- {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_ESAdmin,
- (Odr_fun)z_Admin, 0},
-
- {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_update0,
- (Odr_fun)z_IU0Update, 0},
+ {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_single,
+ (Odr_fun)odr_any, 0},
+ {ODR_IMPLICIT, ODR_CONTEXT, 1, Z_External_octet,
+ (Odr_fun)odr_octetstring, 0},
+ {ODR_IMPLICIT, ODR_CONTEXT, 2, Z_External_arbitrary,
+ (Odr_fun)odr_bitstring, 0},
+ {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_sutrs,
+ (Odr_fun)z_SUTRS, 0},
+ {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_explainRecord,
+ (Odr_fun)z_ExplainRecord, 0},
+
+ {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_resourceReport1,
+ (Odr_fun)z_ResourceReport1, 0},
+ {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_resourceReport2,
+ (Odr_fun)z_ResourceReport2, 0},
+ {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_promptObject1,
+ (Odr_fun)z_PromptObject1, 0},
+ {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_grs1,
+ (Odr_fun)z_GenericRecord, 0},
+ {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_extendedService,
+ (Odr_fun)z_TaskPackage, 0},
+
+ {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_itemOrder,
+ (Odr_fun)z_IOItemOrder, 0},
+ {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_diag1,
+ (Odr_fun)z_DiagnosticFormat, 0},
+ {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_espec1,
+ (Odr_fun)z_Espec1, 0},
+ {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_summary,
+ (Odr_fun)z_BriefBib, 0},
+ {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_OPAC,
+ (Odr_fun)z_OPACRecord, 0},
+
+ {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_searchResult1,
+ (Odr_fun)z_SearchInfoReport, 0},
+ {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_update,
+ (Odr_fun)z_IUUpdate, 0},
+ {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_dateTime,
+ (Odr_fun)z_DateTime, 0},
+ {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_universeReport,
+ (Odr_fun)z_UniverseReport, 0},
+ {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_ESAdmin,
+ (Odr_fun)z_Admin, 0},
+
+ {ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_update0,
+ (Odr_fun)z_IU0Update, 0},
{ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_userInfo1,
(Odr_fun)z_OtherInformation, 0},
{ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_charSetandLanguageNegotiation,
(Odr_fun)z_InternationalString, 0},
{ODR_EXPLICIT, ODR_CONTEXT, 0, Z_External_OCLCUserInfo,
(Odr_fun)z_OCLC_UserInformation, 0},
- {-1, -1, -1, -1, 0, 0}
+ {-1, -1, -1, -1, 0, 0}
};
-
+
odr_implicit_settag(o, ODR_UNIVERSAL, ODR_EXTERNAL);
if (!odr_sequence_begin(o, p, sizeof(**p), name))
- return opt && odr_ok(o);
+ return opt && odr_ok(o);
if (!(odr_oid(o, &(*p)->direct_reference, 1, 0) &&
- odr_integer(o, &(*p)->indirect_reference, 1, 0) &&
- odr_graphicstring(o, &(*p)->descriptor, 1, 0)))
- return 0;
- /*
- * Do we know this beast?
- */
+ odr_integer(o, &(*p)->indirect_reference, 1, 0) &&
+ odr_graphicstring(o, &(*p)->descriptor, 1, 0)))
+ return 0;
+#if PRT_EXT_DEBUG
+ /* debugging purposes only */
+ if (o->direction == ODR_DECODE)
+ {
+ yaz_log(YLOG_LOG, "z_external decode");
+ if ((*p)->direct_reference)
+ {
+ yaz_log(YLOG_LOG, "direct reference");
+ if ((oid = oid_getentbyoid((*p)->direct_reference)))
+ {
+ yaz_log(YLOG_LOG, "oid %s", oid->desc);
+ if ((type = z_ext_getentbyref(oid->value)))
+ yaz_log(YLOG_LOG, "type");
+ }
+ }
+ }
+#endif
+ /* Do we know this beast? */
if (o->direction == ODR_DECODE && (*p)->direct_reference &&
- (oid = oid_getentbyoid((*p)->direct_reference)) &&
- (type = z_ext_getentbyref(oid->value)))
+ (oid = oid_getentbyoid((*p)->direct_reference)) &&
+ (type = z_ext_getentbyref(oid->value)))
{
- int zclass, tag, cons;
-
- /*
- * We know it. If it's represented as an ASN.1 type, bias the CHOICE.
- */
- if (!odr_peektag(o, &zclass, &tag, &cons))
- return opt && odr_ok(o);
- if (zclass == ODR_CONTEXT && tag == 0 && cons == 1)
- odr_choice_bias(o, type->what);
+ int zclass, tag, cons;
+ /* OID is present and we know it */
+
+ if (!odr_peektag(o, &zclass, &tag, &cons))
+ return opt && odr_ok(o);
+#if PRT_EXT_DEBUG
+ yaz_log(YLOG_LOG, "odr_peektag OK tag=%d cons=%d zclass=%d what=%d",
+ tag, cons, zclass, type->what);
+#endif
+ if (zclass == ODR_CONTEXT && tag == 1 && cons == 0)
+ {
+ /* we have an OCTET STRING. decode BER contents from it */
+ const unsigned char *o_bp;
+ unsigned char *o_buf;
+ int o_size;
+ char *voidp = 0;
+ Odr_oct *oct;
+ int r;
+ if (!odr_implicit_tag(o, odr_octetstring, &oct,
+ ODR_CONTEXT, 1, 0, "octetaligned"))
+ return 0;
+
+ /* Save our decoding ODR members */
+ o_bp = o->bp;
+ o_buf = o->buf;
+ o_size = o->size;
+
+ /* Set up the OCTET STRING buffer */
+ o->bp = o->buf = oct->buf;
+ o->size = oct->len;
+
+ /* and decode that */
+ r = (*type->fun)(o, &voidp, 0, 0);
+ (*p)->which = type->what;
+ (*p)->u.single_ASN1_type = (Odr_any*) voidp;
+
+ /* Restore our decoding ODR member */
+ o->bp = o_bp;
+ o->buf = o_buf;
+ o->size = o_size;
+
+ return r && odr_sequence_end(o);
+ }
+ if (zclass == ODR_CONTEXT && tag == 0 && cons == 1)
+ {
+ /* It's single ASN.1 type, bias the CHOICE. */
+ odr_choice_bias(o, type->what);
+ }
}
return
- odr_choice(o, arm, &(*p)->u, &(*p)->which, name) &&
- odr_sequence_end(o);
+ odr_choice(o, arm, &(*p)->u, &(*p)->which, name) &&
+ odr_sequence_end(o);
}
Z_External *z_ext_record(ODR o, int format, const char *buf, int len)
thisext->indirect_reference = 0;
thisext->direct_reference =
- yaz_oidval_to_z3950oid (o, CLASS_RECSYN, format);
+ yaz_oidval_to_z3950oid (o, CLASS_RECSYN, format);
if (!thisext->direct_reference)
- return 0;
+ return 0;
if (len < 0) /* Structured data */
{
-
- /*
- * We cheat on the pointers here. Obviously, the record field
- * of the backend-fetch structure should have been a union for
- * correctness, but we're stuck with this for backwards
- * compatibility.
- */
- thisext->u.grs1 = (Z_GenericRecord*) buf;
-
- switch (format)
- {
- case VAL_SUTRS:
- thisext->which = Z_External_sutrs;
- break;
- case VAL_GRS1:
- thisext->which = Z_External_grs1;
- break;
- case VAL_EXPLAIN:
- thisext->which = Z_External_explainRecord;
- break;
- case VAL_SUMMARY:
- thisext->which = Z_External_summary;
- break;
- case VAL_OPAC:
- thisext->which = Z_External_OPAC;
- break;
- case VAL_EXTENDED:
- thisext->which = Z_External_extendedService;
- break;
- default:
- return 0;
- }
+ /*
+ * We cheat on the pointers here. Obviously, the record field
+ * of the backend-fetch structure should have been a union for
+ * correctness, but we're stuck with this for backwards
+ * compatibility.
+ */
+ thisext->u.grs1 = (Z_GenericRecord*) buf;
+
+ switch (format)
+ {
+ case VAL_SUTRS:
+ thisext->which = Z_External_sutrs;
+ break;
+ case VAL_GRS1:
+ thisext->which = Z_External_grs1;
+ break;
+ case VAL_EXPLAIN:
+ thisext->which = Z_External_explainRecord;
+ break;
+ case VAL_SUMMARY:
+ thisext->which = Z_External_summary;
+ break;
+ case VAL_OPAC:
+ thisext->which = Z_External_OPAC;
+ break;
+ case VAL_EXTENDED:
+ thisext->which = Z_External_extendedService;
+ break;
+ default:
+ return 0;
+ }
}
else if (format == VAL_SUTRS) /* SUTRS is a single-ASN.1-type */
{
- Odr_oct *sutrs = (Odr_oct *)odr_malloc(o, sizeof(*sutrs));
-
- thisext->which = Z_External_sutrs;
- thisext->u.sutrs = sutrs;
- sutrs->buf = (unsigned char *)odr_malloc(o, len);
- sutrs->len = sutrs->size = len;
- memcpy(sutrs->buf, buf, len);
+ Odr_oct *sutrs = (Odr_oct *)odr_malloc(o, sizeof(*sutrs));
+
+ thisext->which = Z_External_sutrs;
+ thisext->u.sutrs = sutrs;
+ sutrs->buf = (unsigned char *)odr_malloc(o, len);
+ sutrs->len = sutrs->size = len;
+ memcpy(sutrs->buf, buf, len);
}
else
{
- thisext->which = Z_External_octet;
- if (!(thisext->u.octet_aligned = (Odr_oct *)
- odr_malloc(o, sizeof(Odr_oct))))
- return 0;
- if (!(thisext->u.octet_aligned->buf = (unsigned char *)
- odr_malloc(o, len)))
- return 0;
- memcpy(thisext->u.octet_aligned->buf, buf, len);
- thisext->u.octet_aligned->len = thisext->u.octet_aligned->size = len;
+ thisext->which = Z_External_octet;
+ if (!(thisext->u.octet_aligned = (Odr_oct *)
+ odr_malloc(o, sizeof(Odr_oct))))
+ return 0;
+ if (!(thisext->u.octet_aligned->buf = (unsigned char *)
+ odr_malloc(o, len)))
+ return 0;
+ memcpy(thisext->u.octet_aligned->buf, buf, len);
+ thisext->u.octet_aligned->len = thisext->u.octet_aligned->size = len;
}
return thisext;
}
+/*
+ * Local variables:
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ * vim: shiftwidth=4 tabstop=8 expandtab
+ */
+
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