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/*-
* Copyright (c) 2003, 2004, 2006 Lev Walkin <vlm@lionet.info>.
* All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#include <asn_internal.h>
#include <constr_SEQUENCE_OF.h>
#include <asn_SEQUENCE_OF.h>
/*
* The DER encoder of the SEQUENCE OF type.
*/
asn_enc_rval_t
SEQUENCE_OF_encode_der(const asn_TYPE_descriptor_t *td, const void *ptr,
int tag_mode, ber_tlv_tag_t tag,
asn_app_consume_bytes_f *cb, void *app_key) {
asn_TYPE_member_t *elm = td->elements;
const asn_anonymous_sequence_ *list = _A_CSEQUENCE_FROM_VOID(ptr);
size_t computed_size = 0;
ssize_t encoding_size = 0;
asn_enc_rval_t erval;
int edx;
ASN_DEBUG("Estimating size of SEQUENCE OF %s", td->name);
/*
* Gather the length of the underlying members sequence.
*/
for(edx = 0; edx < list->count; edx++) {
void *memb_ptr = list->array[edx];
if(!memb_ptr) continue;
erval = elm->type->op->der_encoder(elm->type, memb_ptr,
0, elm->tag,
0, 0);
if(erval.encoded == -1)
return erval;
computed_size += erval.encoded;
}
/*
* Encode the TLV for the sequence itself.
*/
encoding_size = der_write_tags(td, computed_size, tag_mode, 1, tag,
cb, app_key);
if(encoding_size == -1) {
erval.encoded = -1;
erval.failed_type = td;
erval.structure_ptr = ptr;
return erval;
}
computed_size += encoding_size;
if(!cb) {
erval.encoded = computed_size;
ASN__ENCODED_OK(erval);
}
ASN_DEBUG("Encoding members of SEQUENCE OF %s", td->name);
/*
* Encode all members.
*/
for(edx = 0; edx < list->count; edx++) {
void *memb_ptr = list->array[edx];
if(!memb_ptr) continue;
erval = elm->type->op->der_encoder(elm->type, memb_ptr,
0, elm->tag,
cb, app_key);
if(erval.encoded == -1)
return erval;
encoding_size += erval.encoded;
}
if(computed_size != (size_t)encoding_size) {
/*
* Encoded size is not equal to the computed size.
*/
erval.encoded = -1;
erval.failed_type = td;
erval.structure_ptr = ptr;
} else {
erval.encoded = computed_size;
erval.structure_ptr = 0;
erval.failed_type = 0;
}
return erval;
}
asn_enc_rval_t
SEQUENCE_OF_encode_xer(const asn_TYPE_descriptor_t *td, const void *sptr,
int ilevel, enum xer_encoder_flags_e flags,
asn_app_consume_bytes_f *cb, void *app_key) {
asn_enc_rval_t er;
const asn_SET_OF_specifics_t *specs = (const asn_SET_OF_specifics_t *)td->specifics;
const asn_TYPE_member_t *elm = td->elements;
const asn_anonymous_sequence_ *list = _A_CSEQUENCE_FROM_VOID(sptr);
const char *mname = specs->as_XMLValueList
? 0
: ((*elm->name) ? elm->name : elm->type->xml_tag);
size_t mlen = mname ? strlen(mname) : 0;
int xcan = (flags & XER_F_CANONICAL);
int i;
if(!sptr) ASN__ENCODE_FAILED;
er.encoded = 0;
for(i = 0; i < list->count; i++) {
asn_enc_rval_t tmper;
void *memb_ptr = list->array[i];
if(!memb_ptr) continue;
if(mname) {
if(!xcan) ASN__TEXT_INDENT(1, ilevel);
ASN__CALLBACK3("<", 1, mname, mlen, ">", 1);
}
tmper = elm->type->op->xer_encoder(elm->type, memb_ptr, ilevel + 1,
flags, cb, app_key);
if(tmper.encoded == -1) return tmper;
er.encoded += tmper.encoded;
if(tmper.encoded == 0 && specs->as_XMLValueList) {
const char *name = elm->type->xml_tag;
size_t len = strlen(name);
if(!xcan) ASN__TEXT_INDENT(1, ilevel + 1);
ASN__CALLBACK3("<", 1, name, len, "/>", 2);
}
if(mname) {
ASN__CALLBACK3("</", 2, mname, mlen, ">", 1);
}
}
if(!xcan) ASN__TEXT_INDENT(1, ilevel - 1);
ASN__ENCODED_OK(er);
cb_failed:
ASN__ENCODE_FAILED;
}
#ifndef ASN_DISABLE_PER_SUPPORT
asn_enc_rval_t
SEQUENCE_OF_encode_uper(const asn_TYPE_descriptor_t *td,
const asn_per_constraints_t *constraints,
const void *sptr, asn_per_outp_t *po) {
const asn_anonymous_sequence_ *list;
const asn_per_constraint_t *ct;
asn_enc_rval_t er;
const asn_TYPE_member_t *elm = td->elements;
size_t encoded_edx;
if(!sptr) ASN__ENCODE_FAILED;
list = _A_CSEQUENCE_FROM_VOID(sptr);
er.encoded = 0;
ASN_DEBUG("Encoding %s as SEQUENCE OF (%d)", td->name, list->count);
if(constraints) ct = &constraints->size;
else if(td->encoding_constraints.per_constraints)
ct = &td->encoding_constraints.per_constraints->size;
else ct = 0;
/* If extensible constraint, check if size is in root */
if(ct) {
int not_in_root =
(list->count < ct->lower_bound || list->count > ct->upper_bound);
ASN_DEBUG("lb %ld ub %ld %s", ct->lower_bound, ct->upper_bound,
ct->flags & APC_EXTENSIBLE ? "ext" : "fix");
if(ct->flags & APC_EXTENSIBLE) {
/* Declare whether size is in extension root */
if(per_put_few_bits(po, not_in_root, 1)) ASN__ENCODE_FAILED;
if(not_in_root) ct = 0;
} else if(not_in_root && ct->effective_bits >= 0) {
ASN__ENCODE_FAILED;
}
}
if(ct && ct->effective_bits >= 0) {
/* X.691, #19.5: No length determinant */
if(per_put_few_bits(po, list->count - ct->lower_bound,
ct->effective_bits))
ASN__ENCODE_FAILED;
} else if(list->count == 0) {
/* When the list is empty add only the length determinant
* X.691, #20.6 and #11.9.4.1
*/
if (uper_put_length(po, 0, 0)) {
ASN__ENCODE_FAILED;
}
ASN__ENCODED_OK(er);
}
for(encoded_edx = 0; (ssize_t)encoded_edx < list->count;) {
ssize_t may_encode;
size_t edx;
int need_eom = 0;
if(ct && ct->effective_bits >= 0) {
may_encode = list->count;
} else {
may_encode =
uper_put_length(po, list->count - encoded_edx, &need_eom);
if(may_encode < 0) ASN__ENCODE_FAILED;
}
for(edx = encoded_edx; edx < encoded_edx + may_encode; edx++) {
void *memb_ptr = list->array[edx];
if(!memb_ptr) ASN__ENCODE_FAILED;
er = elm->type->op->uper_encoder(
elm->type, elm->encoding_constraints.per_constraints, memb_ptr,
po);
if(er.encoded == -1) ASN__ENCODE_FAILED;
}
if(need_eom && uper_put_length(po, 0, 0))
ASN__ENCODE_FAILED; /* End of Message length */
encoded_edx += may_encode;
}
ASN__ENCODED_OK(er);
}
#endif /* ASN_DISABLE_PER_SUPPORT */
int
SEQUENCE_OF_compare(const asn_TYPE_descriptor_t *td, const void *aptr,
const void *bptr) {
const asn_anonymous_sequence_ *a = _A_CSEQUENCE_FROM_VOID(aptr);
const asn_anonymous_sequence_ *b = _A_CSEQUENCE_FROM_VOID(bptr);
ssize_t idx;
if(a && b) {
ssize_t common_length = (a->count < b->count ? a->count : b->count);
for(idx = 0; idx < common_length; idx++) {
int ret = td->elements->type->op->compare_struct(
td->elements->type, a->array[idx], b->array[idx]);
if(ret) return ret;
}
if(idx < b->count) /* more elements in b */
return -1; /* a is shorter, so put it first */
if(idx < a->count) return 1;
} else if(!a) {
return -1;
} else if(!b) {
return 1;
}
return 0;
}
asn_TYPE_operation_t asn_OP_SEQUENCE_OF = {
SEQUENCE_OF_free,
SEQUENCE_OF_print,
SEQUENCE_OF_compare,
SEQUENCE_OF_decode_ber,
SEQUENCE_OF_encode_der,
SEQUENCE_OF_decode_xer,
SEQUENCE_OF_encode_xer,
#ifdef ASN_DISABLE_OER_SUPPORT
0,
0,
#else
SEQUENCE_OF_decode_oer, /* Same as SET OF decoder. */
SEQUENCE_OF_encode_oer, /* Same as SET OF encoder */
#endif /* ASN_DISABLE_OER_SUPPORT */
#ifdef ASN_DISABLE_PER_SUPPORT
0,
0,
#else
SEQUENCE_OF_decode_uper, /* Same as SET OF decoder */
SEQUENCE_OF_encode_uper,
#endif /* ASN_DISABLE_PER_SUPPORT */
SEQUENCE_OF_random_fill,
0 /* Use generic outmost tag fetcher */
};
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