Lev Walkin | 6cd0d56 | 2017-08-25 11:57:01 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2017 Lev Walkin <vlm@lionet.info>. All rights reserved. |
| 3 | * Redistribution and modifications are permitted subject to BSD license. |
| 4 | */ |
| 5 | #include <asn_internal.h> |
| 6 | #include <OPEN_TYPE.h> |
| 7 | #include <constr_CHOICE.h> |
Lev Walkin | 6cd0d56 | 2017-08-25 11:57:01 -0700 | [diff] [blame] | 8 | #include <errno.h> |
| 9 | |
| 10 | asn_dec_rval_t |
Lev Walkin | afbf2a9 | 2017-09-12 23:30:27 -0700 | [diff] [blame] | 11 | OPEN_TYPE_oer_get(const asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td, |
Lev Walkin | 6cd0d56 | 2017-08-25 11:57:01 -0700 | [diff] [blame] | 12 | void *sptr, asn_TYPE_member_t *elm, const void *ptr, |
| 13 | size_t size) { |
| 14 | asn_type_selector_result_t selected; |
| 15 | void *memb_ptr; /* Pointer to the member */ |
| 16 | void **memb_ptr2; /* Pointer to that pointer */ |
| 17 | void *inner_value; |
| 18 | asn_dec_rval_t rv; |
| 19 | size_t ot_ret; |
| 20 | |
Lev Walkin | 75b6fe4 | 2017-08-27 01:03:22 -0700 | [diff] [blame] | 21 | |
| 22 | if(!(elm->flags & ATF_OPEN_TYPE)) { |
| 23 | ASN__DECODE_FAILED; |
| 24 | } |
| 25 | |
| 26 | if(!elm->type_selector) { |
| 27 | ASN_DEBUG("Type selector is not defined for Open Type %s->%s->%s", |
| 28 | td->name, elm->name, elm->type->name); |
Lev Walkin | 6cd0d56 | 2017-08-25 11:57:01 -0700 | [diff] [blame] | 29 | ASN__DECODE_FAILED; |
| 30 | } |
| 31 | |
| 32 | selected = elm->type_selector(td, sptr); |
| 33 | if(!selected.presence_index) { |
| 34 | ASN__DECODE_FAILED; |
| 35 | } |
| 36 | |
| 37 | /* Fetch the pointer to this member */ |
| 38 | if(elm->flags & ATF_POINTER) { |
| 39 | memb_ptr2 = (void **)((char *)sptr + elm->memb_offset); |
| 40 | } else { |
| 41 | memb_ptr = (char *)sptr + elm->memb_offset; |
| 42 | memb_ptr2 = &memb_ptr; |
| 43 | } |
| 44 | if(*memb_ptr2 != NULL) { |
| 45 | /* Make sure we reset the structure first before encoding */ |
Lev Walkin | 2e5caa5 | 2017-08-27 00:38:13 -0700 | [diff] [blame] | 46 | if(CHOICE_variant_set_presence(elm->type, *memb_ptr2, 0) != 0) { |
Lev Walkin | 6cd0d56 | 2017-08-25 11:57:01 -0700 | [diff] [blame] | 47 | ASN__DECODE_FAILED; |
| 48 | } |
| 49 | } |
| 50 | |
| 51 | inner_value = |
| 52 | (char *)*memb_ptr2 |
| 53 | + elm->type->elements[selected.presence_index - 1].memb_offset; |
| 54 | |
| 55 | ot_ret = oer_open_type_get(opt_codec_ctx, selected.type_descriptor, NULL, |
| 56 | &inner_value, ptr, size); |
| 57 | switch(ot_ret) { |
| 58 | default: |
Lev Walkin | 2e5caa5 | 2017-08-27 00:38:13 -0700 | [diff] [blame] | 59 | if(CHOICE_variant_set_presence(elm->type, *memb_ptr2, |
Lev Walkin | 6cd0d56 | 2017-08-25 11:57:01 -0700 | [diff] [blame] | 60 | selected.presence_index) |
| 61 | == 0) { |
| 62 | rv.code = RC_OK; |
| 63 | rv.consumed = ot_ret; |
| 64 | return rv; |
| 65 | } else { |
| 66 | /* Oh, now a full-blown failure failure */ |
| 67 | } |
| 68 | /* Fall through */ |
| 69 | case -1: |
| 70 | rv.code = RC_FAIL; |
Lev Walkin | 2e5caa5 | 2017-08-27 00:38:13 -0700 | [diff] [blame] | 71 | rv.consumed = ot_ret; |
Lev Walkin | 6cd0d56 | 2017-08-25 11:57:01 -0700 | [diff] [blame] | 72 | break; |
| 73 | case 0: |
| 74 | rv.code = RC_WMORE; |
| 75 | rv.consumed = 0; |
| 76 | break; |
| 77 | } |
| 78 | |
| 79 | if(*memb_ptr2) { |
Lev Walkin | d84f603 | 2017-10-03 16:33:59 -0700 | [diff] [blame] | 80 | const asn_CHOICE_specifics_t *specs = |
| 81 | selected.type_descriptor->specifics; |
Lev Walkin | 6cd0d56 | 2017-08-25 11:57:01 -0700 | [diff] [blame] | 82 | if(elm->flags & ATF_POINTER) { |
| 83 | ASN_STRUCT_FREE(*selected.type_descriptor, inner_value); |
| 84 | *memb_ptr2 = NULL; |
| 85 | } else { |
| 86 | ASN_STRUCT_FREE_CONTENTS_ONLY(*selected.type_descriptor, |
| 87 | inner_value); |
| 88 | memset(*memb_ptr2, 0, specs->struct_size); |
| 89 | } |
| 90 | } |
| 91 | return rv; |
| 92 | } |