93 lines
2.7 KiB
C
93 lines
2.7 KiB
C
/*
|
|
* Copyright (c) 2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
|
|
* Redistribution and modifications are permitted subject to BSD license.
|
|
*/
|
|
#include <asn_internal.h>
|
|
#include <OPEN_TYPE.h>
|
|
#include <constr_CHOICE.h>
|
|
#include <errno.h>
|
|
|
|
asn_dec_rval_t
|
|
OPEN_TYPE_oer_get(const asn_codec_ctx_t *opt_codec_ctx,
|
|
const asn_TYPE_descriptor_t *td, void *sptr,
|
|
asn_TYPE_member_t *elm, const void *ptr, size_t size) {
|
|
asn_type_selector_result_t selected;
|
|
void *memb_ptr; /* Pointer to the member */
|
|
void **memb_ptr2; /* Pointer to that pointer */
|
|
void *inner_value;
|
|
asn_dec_rval_t rv;
|
|
size_t ot_ret;
|
|
|
|
|
|
if(!(elm->flags & ATF_OPEN_TYPE)) {
|
|
ASN__DECODE_FAILED;
|
|
}
|
|
|
|
if(!elm->type_selector) {
|
|
ASN_DEBUG("Type selector is not defined for Open Type %s->%s->%s",
|
|
td->name, elm->name, elm->type->name);
|
|
ASN__DECODE_FAILED;
|
|
}
|
|
|
|
selected = elm->type_selector(td, sptr);
|
|
if(!selected.presence_index) {
|
|
ASN__DECODE_FAILED;
|
|
}
|
|
|
|
/* Fetch the pointer to this member */
|
|
if(elm->flags & ATF_POINTER) {
|
|
memb_ptr2 = (void **)((char *)sptr + elm->memb_offset);
|
|
} else {
|
|
memb_ptr = (char *)sptr + elm->memb_offset;
|
|
memb_ptr2 = &memb_ptr;
|
|
}
|
|
if(*memb_ptr2 != NULL) {
|
|
/* Make sure we reset the structure first before encoding */
|
|
if(CHOICE_variant_set_presence(elm->type, *memb_ptr2, 0) != 0) {
|
|
ASN__DECODE_FAILED;
|
|
}
|
|
}
|
|
|
|
inner_value =
|
|
(char *)*memb_ptr2
|
|
+ elm->type->elements[selected.presence_index - 1].memb_offset;
|
|
|
|
ot_ret = oer_open_type_get(opt_codec_ctx, selected.type_descriptor, NULL,
|
|
&inner_value, ptr, size);
|
|
switch(ot_ret) {
|
|
default:
|
|
if(CHOICE_variant_set_presence(elm->type, *memb_ptr2,
|
|
selected.presence_index)
|
|
== 0) {
|
|
rv.code = RC_OK;
|
|
rv.consumed = ot_ret;
|
|
return rv;
|
|
} else {
|
|
/* Oh, now a full-blown failure failure */
|
|
}
|
|
/* Fall through */
|
|
case -1:
|
|
rv.code = RC_FAIL;
|
|
rv.consumed = ot_ret;
|
|
break;
|
|
case 0:
|
|
rv.code = RC_WMORE;
|
|
rv.consumed = 0;
|
|
break;
|
|
}
|
|
|
|
if(*memb_ptr2) {
|
|
const asn_CHOICE_specifics_t *specs =
|
|
selected.type_descriptor->specifics;
|
|
if(elm->flags & ATF_POINTER) {
|
|
ASN_STRUCT_FREE(*selected.type_descriptor, inner_value);
|
|
*memb_ptr2 = NULL;
|
|
} else {
|
|
ASN_STRUCT_FREE_CONTENTS_ONLY(*selected.type_descriptor,
|
|
inner_value);
|
|
memset(*memb_ptr2, 0, specs->struct_size);
|
|
}
|
|
}
|
|
return rv;
|
|
}
|