mirror of https://gerrit.osmocom.org/asn1c
142 lines
3.5 KiB
C
142 lines
3.5 KiB
C
/*-
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* Copyright (c) 2003, 2004 Lev Walkin <vlm@lionet.info>. All rights reserved.
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* Redistribution and modifications are permitted subject to BSD license.
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*/
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#include <asn_internal.h>
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#include <constr_SEQUENCE_OF.h>
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#include <asn_SEQUENCE_OF.h>
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/*
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* The DER encoder of the SEQUENCE OF type.
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*/
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asn_enc_rval_t
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SEQUENCE_OF_encode_der(asn_TYPE_descriptor_t *td, void *ptr,
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int tag_mode, ber_tlv_tag_t tag,
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asn_app_consume_bytes_f *cb, void *app_key) {
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asn_TYPE_member_t *elm = td->elements;
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asn_anonymous_sequence_ *list = _A_SEQUENCE_FROM_VOID(ptr);
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size_t computed_size = 0;
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ssize_t encoding_size = 0;
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asn_enc_rval_t erval;
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int edx;
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ASN_DEBUG("Estimating size of SEQUENCE OF %s", td->name);
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/*
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* Gather the length of the underlying members sequence.
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*/
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for(edx = 0; edx < list->count; edx++) {
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void *memb_ptr = list->array[edx];
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if(!memb_ptr) continue;
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erval = elm->type->der_encoder(elm->type, memb_ptr,
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0, elm->tag,
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0, 0);
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if(erval.encoded == -1)
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return erval;
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computed_size += erval.encoded;
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}
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/*
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* Encode the TLV for the sequence itself.
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*/
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encoding_size = der_write_tags(td, computed_size, tag_mode, 1, tag,
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cb, app_key);
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if(encoding_size == -1) {
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erval.encoded = -1;
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erval.failed_type = td;
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erval.structure_ptr = ptr;
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return erval;
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}
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computed_size += encoding_size;
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if(!cb) {
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erval.encoded = computed_size;
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_ASN_ENCODED_OK(erval);
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}
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ASN_DEBUG("Encoding members of SEQUENCE OF %s", td->name);
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/*
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* Encode all members.
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*/
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for(edx = 0; edx < list->count; edx++) {
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void *memb_ptr = list->array[edx];
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if(!memb_ptr) continue;
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erval = elm->type->der_encoder(elm->type, memb_ptr,
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0, elm->tag,
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cb, app_key);
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if(erval.encoded == -1)
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return erval;
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encoding_size += erval.encoded;
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}
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if(computed_size != (size_t)encoding_size) {
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/*
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* Encoded size is not equal to the computed size.
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*/
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erval.encoded = -1;
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erval.failed_type = td;
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erval.structure_ptr = ptr;
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} else {
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erval.encoded = computed_size;
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erval.structure_ptr = 0;
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erval.failed_type = 0;
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}
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return erval;
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}
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asn_enc_rval_t
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SEQUENCE_OF_encode_xer(asn_TYPE_descriptor_t *td, void *sptr,
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int ilevel, enum xer_encoder_flags_e flags,
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asn_app_consume_bytes_f *cb, void *app_key) {
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asn_enc_rval_t er;
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asn_SET_OF_specifics_t *specs = (asn_SET_OF_specifics_t *)td->specifics;
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asn_TYPE_member_t *elm = td->elements;
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asn_anonymous_sequence_ *list = _A_SEQUENCE_FROM_VOID(sptr);
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const char *mname = specs->as_XMLValueList
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? 0 : ((*elm->name) ? elm->name : elm->type->xml_tag);
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unsigned int mlen = mname ? strlen(mname) : 0;
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int xcan = (flags & XER_F_CANONICAL);
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int i;
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if(!sptr) _ASN_ENCODE_FAILED;
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er.encoded = 0;
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for(i = 0; i < list->count; i++) {
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asn_enc_rval_t tmper;
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void *memb_ptr = list->array[i];
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if(!memb_ptr) continue;
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if(mname) {
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if(!xcan) _i_ASN_TEXT_INDENT(1, ilevel);
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_ASN_CALLBACK3("<", 1, mname, mlen, ">", 1);
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}
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tmper = elm->type->xer_encoder(elm->type, memb_ptr,
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ilevel + 1, flags, cb, app_key);
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if(tmper.encoded == -1) return tmper;
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if(tmper.encoded == 0 && specs->as_XMLValueList) {
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const char *name = elm->type->xml_tag;
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size_t len = strlen(name);
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if(!xcan) _i_ASN_TEXT_INDENT(1, ilevel + 1);
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_ASN_CALLBACK3("<", 1, name, len, "/>", 2);
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}
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if(mname) {
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_ASN_CALLBACK3("</", 2, mname, mlen, ">", 1);
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er.encoded += 5;
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}
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er.encoded += (2 * mlen) + tmper.encoded;
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}
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if(!xcan) _i_ASN_TEXT_INDENT(1, ilevel - 1);
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_ASN_ENCODED_OK(er);
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cb_failed:
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_ASN_ENCODE_FAILED;
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}
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