int
uper_open_type_skip(asn_codec_ctx_t *ctx, asn_per_data_t *pd) {
asn_TYPE_descriptor_t s_td;
asn_dec_rval_t rv;
s_td.name = "<unknown extension>";
s_td.uper_decoder = uper_sot_suck;
rv = uper_open_type_get(ctx, &s_td, 0, 0, pd);
if(rv.code != RC_OK)
return -1;
else
return 0;
}
asn_dec_rval_t
CHOICE_decode_uper(Allocator * allocator, 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_CHOICE_specifics_t *specs = (asn_CHOICE_specifics_t *)td->specifics;
asn_dec_rval_t rv;
asn_per_constraint_t *ct;
asn_TYPE_member_t *elm; /* CHOICE's element */
void *memb_ptr;
void **memb_ptr2;
void *st = *sptr;
int value;
if(_ASN_STACK_OVERFLOW_CHECK(opt_codec_ctx))
_ASN_DECODE_FAILED;
/*
* Create the target structure if it is not present already.
*/
if(!st) {
st = *sptr = CXX_ALLOC_WRAP CALLOC(1, specs->struct_size);
if(!st) _ASN_DECODE_FAILED;
}
if(constraints) ct = &constraints->value;
else if(td->per_constraints) ct = &td->per_constraints->value;
else ct = 0;
if(ct && ct->flags & asn_per_constraint_s::APC_EXTENSIBLE) {
value = per_get_few_bits(pd, 1);
if(value < 0) _ASN_DECODE_STARVED;
if(value) ct = 0; /* Not restricted */
}
if(ct && ct->range_bits >= 0) {
value = per_get_few_bits(pd, ct->range_bits);
if(value < 0) _ASN_DECODE_STARVED;
ASN_DEBUG("CHOICE %s got index %d in range %d",
td->name, value, ct->range_bits);
if(value > ct->upper_bound)
_ASN_DECODE_FAILED;
} else {
if(specs->ext_start == -1)
_ASN_DECODE_FAILED;
value = uper_get_nsnnwn(pd);
if(value < 0) _ASN_DECODE_STARVED;
value += specs->ext_start;
if(value >= td->elements_count)
_ASN_DECODE_FAILED;
}
/* Adjust if canonical order is different from natural order */
if(specs->canonical_order)
value = specs->canonical_order[value];
/* Set presence to be able to free it later */
_set_present_idx(st, specs->pres_offset, specs->pres_size, value + 1);
elm = &td->elements[value];
if(elm->flags & ATF_POINTER) {
/* Member is a pointer to another structure */
memb_ptr2 = (void **)((char *)st + elm->memb_offset);
} else {
memb_ptr = (char *)st + elm->memb_offset;
memb_ptr2 = &memb_ptr;
}
ASN_DEBUG("Discovered CHOICE %s encodes %s", td->name, elm->name);
if(ct && ct->range_bits >= 0) {
rv = elm->type->uper_decoder(allocator, opt_codec_ctx, elm->type,
elm->per_constraints, memb_ptr2, pd);
} else {
rv = uper_open_type_get(allocator, opt_codec_ctx, elm->type,
elm->per_constraints, memb_ptr2, pd);
}
if(rv.code != RC_OK)
ASN_DEBUG("Failed to decode %s in %s (CHOICE) %d",
elm->name, td->name, rv.code);
return rv;
}
asn_dec_rval_t
OPEN_TYPE_uper_get(asn_codec_ctx_t *opt_codec_ctx,
asn_TYPE_descriptor_t *td, void *sptr,
asn_TYPE_member_t *elm, asn_per_data_t *pd) {
asn_type_selector_result_t selected;
void *memb_ptr; /* Pointer to the member */
void **memb_ptr2; /* Pointer to that pointer */
asn_dec_rval_t rv;
if(!(elm->flags & ATF_OPEN_TYPE) || !elm->type_selector) {
ASN__DECODE_FAILED;
}
selected = elm->type_selector(td, sptr);
if(!selected.presence_index) {
ASN__DECODE_FAILED;
}
/* Fetch the pointer to this member */
assert(elm->flags == ATF_OPEN_TYPE);
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;
}
}
void *inner_value =
(char *)*memb_ptr2
+ elm->type->elements[selected.presence_index - 1].memb_offset;
rv = uper_open_type_get(opt_codec_ctx, selected.type_descriptor, NULL,
&inner_value, pd);
switch(rv.code) {
case RC_OK:
if(CHOICE_variant_set_presence(elm->type, *memb_ptr2,
selected.presence_index)
== 0) {
break;
} else {
rv.code = RC_FAIL;
}
/* Fall through */
case RC_WMORE:
case RC_FAIL:
if(*memb_ptr2) {
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;
}
