+++ /dev/null
-/*-
- * Copyright (c) 2004, 2007 Lev Walkin <vlm@lionet.info>. All rights reserved.
- * Redistribution and modifications are permitted subject to BSD license.
- */
-/*
- * Read the NativeInteger.h for the explanation wrt. differences between
- * INTEGER and NativeInteger.
- * Basically, both are decoders and encoders of ASN.1 INTEGER type, but this
- * implementation deals with the standard (machine-specific) representation
- * of them instead of using the platform-independent buffer.
- */
-#include <asn_internal.h>
-#include <NativeEnumerated.h>
-
-/*
- * NativeEnumerated basic type description.
- */
-static const ber_tlv_tag_t asn_DEF_NativeEnumerated_tags[] = {
- (ASN_TAG_CLASS_UNIVERSAL | (10 << 2))
-};
-asn_TYPE_descriptor_t asn_DEF_NativeEnumerated = {
- "ENUMERATED", /* The ASN.1 type is still ENUMERATED */
- "ENUMERATED",
- NativeInteger_free,
- NativeInteger_print,
- asn_generic_no_constraint,
- NativeInteger_decode_ber,
- NativeInteger_encode_der,
- NativeInteger_decode_xer,
- NativeEnumerated_encode_xer,
- NativeEnumerated_decode_uper,
- NativeEnumerated_encode_uper,
- 0, /* Use generic outmost tag fetcher */
- asn_DEF_NativeEnumerated_tags,
- sizeof(asn_DEF_NativeEnumerated_tags) / sizeof(asn_DEF_NativeEnumerated_tags[0]),
- asn_DEF_NativeEnumerated_tags, /* Same as above */
- sizeof(asn_DEF_NativeEnumerated_tags) / sizeof(asn_DEF_NativeEnumerated_tags[0]),
- 0, /* No PER visible constraints */
- 0, 0, /* No members */
- 0 /* No specifics */
-};
-
-asn_enc_rval_t
-NativeEnumerated_encode_xer(asn_TYPE_descriptor_t *td, void *sptr,
- int ilevel, enum xer_encoder_flags_e flags,
- asn_app_consume_bytes_f *cb, void *app_key) {
- asn_INTEGER_specifics_t *specs=(asn_INTEGER_specifics_t *)td->specifics;
- asn_enc_rval_t er;
- const long *native = (const long *)sptr;
- const asn_INTEGER_enum_map_t *el;
-
- (void)ilevel;
- (void)flags;
-
- if(!native) ASN__ENCODE_FAILED;
-
- el = INTEGER_map_value2enum(specs, *native);
- if(el) {
- size_t srcsize = el->enum_len + 5;
- char *src = (char *)alloca(srcsize);
-
- er.encoded = snprintf(src, srcsize, "<%s/>", el->enum_name);
- assert(er.encoded > 0 && (size_t)er.encoded < srcsize);
- if(cb(src, er.encoded, app_key) < 0) ASN__ENCODE_FAILED;
- ASN__ENCODED_OK(er);
- } else {
- ASN_DEBUG("ASN.1 forbids dealing with "
- "unknown value of ENUMERATED type");
- ASN__ENCODE_FAILED;
- }
-}
-
-asn_dec_rval_t
-NativeEnumerated_decode_uper(asn_codec_ctx_t *opt_codec_ctx,
- asn_TYPE_descriptor_t *td, asn_per_constraints_t *constraints,
- void **sptr, asn_per_data_t *pd) {
- asn_INTEGER_specifics_t *specs = (asn_INTEGER_specifics_t *)td->specifics;
- asn_dec_rval_t rval = { RC_OK, 0 };
- long *native = (long *)*sptr;
- asn_per_constraint_t *ct;
- long value;
-
- (void)opt_codec_ctx;
-
- if(constraints) ct = &constraints->value;
- else if(td->per_constraints) ct = &td->per_constraints->value;
- else ASN__DECODE_FAILED; /* Mandatory! */
- if(!specs) ASN__DECODE_FAILED;
-
- if(!native) {
- native = (long *)(*sptr = CALLOC(1, sizeof(*native)));
- if(!native) ASN__DECODE_FAILED;
- }
-
- ASN_DEBUG("Decoding %s as NativeEnumerated", td->name);
-
- if(ct->flags & APC_EXTENSIBLE) {
- int inext = per_get_few_bits(pd, 1);
- if(inext < 0) ASN__DECODE_STARVED;
- if(inext) ct = 0;
- }
-
- if(ct && ct->range_bits >= 0) {
- value = per_get_few_bits(pd, ct->range_bits);
- if(value < 0) ASN__DECODE_STARVED;
- if(value >= (specs->extension
- ? specs->extension - 1 : specs->map_count))
- ASN__DECODE_FAILED;
- } else {
- if(!specs->extension)
- ASN__DECODE_FAILED;
- /*
- * X.691, #10.6: normally small non-negative whole number;
- */
- value = uper_get_nsnnwn(pd);
- if(value < 0) ASN__DECODE_STARVED;
- value += specs->extension - 1;
- if(value >= specs->map_count)
- ASN__DECODE_FAILED;
- }
-
- *native = specs->value2enum[value].nat_value;
- ASN_DEBUG("Decoded %s = %ld", td->name, *native);
-
- return rval;
-}
-
-static int
-NativeEnumerated__compar_value2enum(const void *ap, const void *bp) {
- const asn_INTEGER_enum_map_t *a = ap;
- const asn_INTEGER_enum_map_t *b = bp;
- if(a->nat_value == b->nat_value)
- return 0;
- if(a->nat_value < b->nat_value)
- return -1;
- return 1;
-}
-
-asn_enc_rval_t
-NativeEnumerated_encode_uper(asn_TYPE_descriptor_t *td,
- asn_per_constraints_t *constraints, void *sptr, asn_per_outp_t *po) {
- asn_INTEGER_specifics_t *specs = (asn_INTEGER_specifics_t *)td->specifics;
- asn_enc_rval_t er;
- long native, value;
- asn_per_constraint_t *ct;
- int inext = 0;
- asn_INTEGER_enum_map_t key;
- const asn_INTEGER_enum_map_t *kf;
-
- if(!sptr) ASN__ENCODE_FAILED;
- if(!specs) ASN__ENCODE_FAILED;
-
- if(constraints) ct = &constraints->value;
- else if(td->per_constraints) ct = &td->per_constraints->value;
- else ASN__ENCODE_FAILED; /* Mandatory! */
-
- ASN_DEBUG("Encoding %s as NativeEnumerated", td->name);
-
- er.encoded = 0;
-
- native = *(long *)sptr;
- if(native < 0) ASN__ENCODE_FAILED;
-
- key.nat_value = native;
- kf = bsearch(&key, specs->value2enum, specs->map_count,
- sizeof(key), NativeEnumerated__compar_value2enum);
- if(!kf) {
- ASN_DEBUG("No element corresponds to %ld", native);
- ASN__ENCODE_FAILED;
- }
- value = kf - specs->value2enum;
-
- if(ct->range_bits >= 0) {
- int cmpWith = specs->extension
- ? specs->extension - 1 : specs->map_count;
- if(value >= cmpWith)
- inext = 1;
- }
- if(ct->flags & APC_EXTENSIBLE) {
- if(per_put_few_bits(po, inext, 1))
- ASN__ENCODE_FAILED;
- if(inext) ct = 0;
- } else if(inext) {
- ASN__ENCODE_FAILED;
- }
-
- if(ct && ct->range_bits >= 0) {
- if(per_put_few_bits(po, value, ct->range_bits))
- ASN__ENCODE_FAILED;
- ASN__ENCODED_OK(er);
- }
-
- if(!specs->extension)
- ASN__ENCODE_FAILED;
-
- /*
- * X.691, #10.6: normally small non-negative whole number;
- */
- ASN_DEBUG("value = %ld, ext = %d, inext = %d, res = %ld",
- value, specs->extension, inext,
- value - (inext ? (specs->extension - 1) : 0));
- if(uper_put_nsnnwn(po, value - (inext ? (specs->extension - 1) : 0)))
- ASN__ENCODE_FAILED;
-
- ASN__ENCODED_OK(er);
-}
-
git.stg.codes / stg.git / blobdiff