| /*- |
| * Copyright (c) 2003, 2004 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(asn_TYPE_descriptor_t *td, 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; |
| asn_anonymous_sequence_ *list = _A_SEQUENCE_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]; |
| erval = elm->type->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; |
| return 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]; |
| erval = elm->type->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; |
| } |
| |
| return erval; |
| } |
| |
| asn_enc_rval_t |
| SEQUENCE_OF_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_enc_rval_t er; |
| asn_SET_OF_specifics_t *specs = (asn_SET_OF_specifics_t *)td->specifics; |
| asn_TYPE_member_t *element = td->elements; |
| asn_anonymous_sequence_ *list = _A_SEQUENCE_FROM_VOID(sptr); |
| const char *mname = specs->as_XMLValueList |
| ? 0 : ((*element->name) |
| ? element->name : element->type->xml_tag); |
| unsigned int 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) _i_ASN_TEXT_INDENT(1, ilevel); |
| _ASN_CALLBACK3("<", 1, mname, mlen, ">", 1); |
| } |
| |
| tmper = element->type->xer_encoder(element->type, memb_ptr, |
| ilevel + 1, flags, cb, app_key); |
| if(tmper.encoded == -1) return tmper; |
| if(tmper.encoded == 0 && specs->as_XMLValueList) { |
| const char *name = (*element->name) |
| ? element->name : element->type->xml_tag; |
| size_t len = strlen(name); |
| if(!xcan) _i_ASN_TEXT_INDENT(1, ilevel + 1); |
| _ASN_CALLBACK3("<", 1, name, len, "/>", 2); |
| } |
| |
| if(mname) { |
| _ASN_CALLBACK3("</", 2, mname, mlen, ">", 1); |
| er.encoded += 5; |
| } |
| |
| er.encoded += (2 * mlen) + tmper.encoded; |
| } |
| |
| if(!xcan) _i_ASN_TEXT_INDENT(1, ilevel - 1); |
| |
| return er; |
| cb_failed: |
| _ASN_ENCODE_FAILED; |
| } |
| |