mirror of https://gerrit.osmocom.org/asn1c
99 lines
2.9 KiB
C
99 lines
2.9 KiB
C
/*
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* Copyright (c) 2017 Lev Walkin <vlm@lionet.info>.
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* All rights reserved.
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* Redistribution and modifications are permitted subject to BSD license.
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*/
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#ifndef ASN_DISABLE_OER_SUPPORT
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#include <asn_internal.h>
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#include <NativeInteger.h>
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#include <errno.h>
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asn_dec_rval_t
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NativeInteger_decode_oer(asn_codec_ctx_t *opt_codec_ctx,
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asn_TYPE_descriptor_t *td,
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const asn_oer_constraints_t *constraints,
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void **nint_ptr, const void *ptr, size_t size) {
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const asn_INTEGER_specifics_t *specs =
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(const asn_INTEGER_specifics_t *)td->specifics;
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asn_dec_rval_t rval = {RC_OK, 0};
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long *native = (long *)*nint_ptr;
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INTEGER_t tmpint;
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INTEGER_t *tmpintptr = &tmpint;
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memset(&tmpint, 0, sizeof(tmpint));
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if(!native) {
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native = (long *)(*nint_ptr = CALLOC(1, sizeof(*native)));
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if(!native) ASN__DECODE_FAILED;
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}
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/*
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* OPTIMIZATION: Encode directly rather than passing through INTEGER.
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* Saves a memory allocation.
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*/
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rval = INTEGER_decode_oer(opt_codec_ctx, td, constraints,
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(void **)&tmpintptr, ptr, size);
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if(rval.code != RC_OK) {
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ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_INTEGER, &tmpint);
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return rval;
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}
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if(specs && specs->field_unsigned) {
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unsigned long ul;
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int ok = asn_INTEGER2ulong(&tmpint, &ul) == 0;
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ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_INTEGER, &tmpint);
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if(ok) {
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*native = ul;
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} else {
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rval.code = RC_FAIL;
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return rval;
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}
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} else {
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long l;
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int ok = asn_INTEGER2long(&tmpint, &l) == 0;
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ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_INTEGER, &tmpint);
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if(ok) {
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*native = l;
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} else {
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rval.code = RC_FAIL;
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return rval;
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}
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}
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return rval;
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}
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/*
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* Encode as Canonical OER.
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*/
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asn_enc_rval_t
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NativeInteger_encode_oer(asn_TYPE_descriptor_t *td,
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const asn_oer_constraints_t *constraints, void *sptr,
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asn_app_consume_bytes_f *cb, void *app_key) {
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const asn_INTEGER_specifics_t *specs =
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(const asn_INTEGER_specifics_t *)td->specifics;
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INTEGER_t tmpint;
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long native;
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if(!sptr) ASN__ENCODE_FAILED;
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native = *(const long *)sptr;
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memset(&tmpint, 0, sizeof(tmpint));
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ASN_DEBUG("Encoding %s %ld as NativeInteger", td ? td->name : "", native);
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if((specs && specs->field_unsigned) ? asn_ulong2INTEGER(&tmpint, native)
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: asn_long2INTEGER(&tmpint, native)) {
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ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_INTEGER, &tmpint);
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ASN__ENCODE_FAILED;
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} else {
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asn_enc_rval_t er =
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INTEGER_encode_oer(td, constraints, &tmpint, cb, app_key);
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ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_INTEGER, &tmpint);
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return er;
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}
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}
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#endif /* ASN_DISABLE_OER_SUPPORT */
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