open5gs/lib/asn1c/common/constr_CHOICE_jer.c

80 lines
2.5 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 <constr_CHOICE.h>
/*
* Return a standardized complex structure.
*/
#undef RETURN
#define RETURN(_code) \
do { \
rval.code = _code; \
rval.consumed = consumed_myself; \
return rval; \
} while(0)
#undef JER_ADVANCE
#define JER_ADVANCE(num_bytes) \
do { \
size_t num = num_bytes; \
buf_ptr = (const void *)(((const char *)buf_ptr) + num); \
size -= num; \
consumed_myself += num; \
} while(0)
asn_enc_rval_t
CHOICE_encode_jer(const asn_TYPE_descriptor_t *td, const void *sptr, int ilevel,
enum jer_encoder_flags_e flags, asn_app_consume_bytes_f *cb,
void *app_key) {
const asn_CHOICE_specifics_t *specs =
(const asn_CHOICE_specifics_t *)td->specifics;
asn_enc_rval_t er = {0,0,0};
unsigned present = 0;
if(!sptr)
ASN__ENCODE_FAILED;
/*
* Figure out which CHOICE element is encoded.
*/
present = _fetch_present_idx(sptr, specs->pres_offset,specs->pres_size);
if(present == 0 || present > td->elements_count) {
ASN__ENCODE_FAILED;
} else {
asn_enc_rval_t tmper = {0,0,0};
asn_TYPE_member_t *elm = &td->elements[present-1];
const void *memb_ptr = NULL;
const char *mname = elm->name;
unsigned int mlen = strlen(mname);
if(elm->flags & ATF_POINTER) {
memb_ptr =
*(const void *const *)((const char *)sptr + elm->memb_offset);
if(!memb_ptr) ASN__ENCODE_FAILED;
} else {
memb_ptr = (const void *)((const char *)sptr + elm->memb_offset);
}
er.encoded = 0;
ASN__CALLBACK3("{\n\"", 3, mname, mlen, "\": ", 2);
tmper = elm->type->op->jer_encoder(elm->type, memb_ptr,
ilevel + 1, flags, cb, app_key);
if(tmper.encoded == -1) return tmper;
er.encoded += tmper.encoded;
ASN__CALLBACK("}", 1);
// ASN__CALLBACK3("</", 2, mname, mlen, ">", 1);
}
ASN__ENCODED_OK(er);
cb_failed:
ASN__ENCODE_FAILED;
}