Lev Walkin | 9ae018e | 2017-07-24 01:45:57 +0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2017 Lev Walkin <vlm@lionet.info>. |
| 3 | * All rights reserved. |
| 4 | * Redistribution and modifications are permitted subject to BSD license. |
| 5 | */ |
| 6 | #ifndef ASN_DISABLE_OER_SUPPORT |
| 7 | |
| 8 | #include <asn_internal.h> |
| 9 | #include <NativeInteger.h> |
| 10 | #include <errno.h> |
| 11 | |
| 12 | asn_dec_rval_t |
| 13 | NativeInteger_decode_oer(asn_codec_ctx_t *opt_codec_ctx, |
| 14 | asn_TYPE_descriptor_t *td, |
| 15 | asn_oer_constraints_t *constraints, void **nint_ptr, |
| 16 | const void *ptr, size_t size) { |
| 17 | asn_INTEGER_specifics_t *specs = (asn_INTEGER_specifics_t *)td->specifics; |
| 18 | asn_dec_rval_t rval = {RC_OK, 0}; |
| 19 | long *native = (long *)*nint_ptr; |
| 20 | asn_oer_constraint_t *ct; |
| 21 | |
| 22 | (void)opt_codec_ctx; |
| 23 | (void)specs; |
| 24 | |
| 25 | if(!native) { |
| 26 | native = (long *)(*nint_ptr = CALLOC(1, sizeof(*native))); |
| 27 | if(!native) ASN__DECODE_FAILED; |
| 28 | } |
| 29 | |
| 30 | if(!constraints) constraints = td->oer_constraints; |
| 31 | ct = constraints ? &constraints->value : 0; |
| 32 | |
| 33 | INTEGER_t tmpint; |
| 34 | INTEGER_t *tmpintptr = &tmpint; |
| 35 | memset(&tmpint, 0, sizeof(tmpint)); |
| 36 | |
| 37 | /* |
| 38 | * OPTIMIZATION: Encode directly rather than passing through INTEGER. |
| 39 | * Saves a memory allocation. |
| 40 | */ |
| 41 | rval = INTEGER_decode_oer(opt_codec_ctx, &asn_DEF_INTEGER, constraints, |
| 42 | (void **)&tmpintptr, ptr, size); |
| 43 | if(rval.code != RC_OK) { |
| 44 | ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_INTEGER, &tmpint); |
| 45 | return rval; |
| 46 | } |
| 47 | |
| 48 | if(specs && specs->field_unsigned) { |
| 49 | unsigned long ul; |
| 50 | if(asn_INTEGER2ulong(&tmpint, &ul) != 0) { |
| 51 | ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_INTEGER, &tmpint); |
| 52 | rval.code = RC_FAIL; |
| 53 | rval.consumed = 0; |
| 54 | return rval; |
| 55 | } else { |
| 56 | *native = ul; |
| 57 | } |
| 58 | } else { |
| 59 | long l; |
| 60 | if(asn_INTEGER2long(&tmpint, &l) != 0) { |
| 61 | ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_INTEGER, &tmpint); |
| 62 | rval.code = RC_FAIL; |
| 63 | rval.consumed = 0; |
| 64 | return rval; |
| 65 | } else { |
| 66 | *native = l; |
| 67 | } |
| 68 | } |
| 69 | |
| 70 | return rval; |
| 71 | } |
| 72 | |
| 73 | /* |
| 74 | * Encode as Canonical OER. |
| 75 | */ |
| 76 | asn_enc_rval_t |
| 77 | NativeInteger_encode_oer(asn_TYPE_descriptor_t *td, |
| 78 | asn_oer_constraints_t *constraints, void *sptr, |
| 79 | asn_app_consume_bytes_f *cb, void *app_key) { |
| 80 | asn_INTEGER_specifics_t *specs = (asn_INTEGER_specifics_t *)td->specifics; |
| 81 | long native; |
| 82 | |
| 83 | if(!sptr) ASN__ENCODE_FAILED; |
| 84 | |
| 85 | native = *(const long *)sptr; |
| 86 | |
| 87 | ASN_DEBUG("Encoding %s %ld as NativeInteger", td ? td->name : "", native); |
| 88 | |
| 89 | INTEGER_t tmpint; |
| 90 | memset(&tmpint, 0, sizeof(tmpint)); |
| 91 | |
| 92 | if((specs && specs->field_unsigned) ? asn_ulong2INTEGER(&tmpint, native) |
| 93 | : asn_long2INTEGER(&tmpint, native)) { |
| 94 | ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_INTEGER, &tmpint); |
| 95 | ASN__ENCODE_FAILED; |
| 96 | } else { |
| 97 | asn_enc_rval_t er = |
| 98 | INTEGER_encode_oer(td, constraints, &tmpint, cb, app_key); |
| 99 | ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_INTEGER, &tmpint); |
| 100 | return er; |
| 101 | } |
| 102 | } |
| 103 | |
| 104 | #endif /* ASN_DISABLE_OER_SUPPORT */ |