1 /* 2 * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com> 3 * 4 * libcbor is free software; you can redistribute it and/or modify 5 * it under the terms of the MIT license. See LICENSE for details. 6 */ 7 8 #include "tags.h" 9 10 cbor_item_t *cbor_new_tag(uint64_t value) { 11 cbor_item_t *item = _cbor_malloc(sizeof(cbor_item_t)); 12 _CBOR_NOTNULL(item); 13 14 *item = (cbor_item_t){ 15 .refcount = 1, 16 .type = CBOR_TYPE_TAG, 17 .metadata = {.tag_metadata = {.value = value, .tagged_item = NULL}}, 18 .data = NULL /* Never used */ 19 }; 20 return item; 21 } 22 23 cbor_item_t *cbor_tag_item(const cbor_item_t *item) { 24 CBOR_ASSERT(cbor_isa_tag(item)); 25 return cbor_incref(item->metadata.tag_metadata.tagged_item); 26 } 27 28 uint64_t cbor_tag_value(const cbor_item_t *item) { 29 CBOR_ASSERT(cbor_isa_tag(item)); 30 return item->metadata.tag_metadata.value; 31 } 32 33 void cbor_tag_set_item(cbor_item_t *item, cbor_item_t *tagged_item) { 34 CBOR_ASSERT(cbor_isa_tag(item)); 35 cbor_incref(tagged_item); 36 item->metadata.tag_metadata.tagged_item = tagged_item; 37 } 38 39 cbor_item_t *cbor_build_tag(uint64_t value, cbor_item_t *item) { 40 cbor_item_t *res = cbor_new_tag(value); 41 if (res == NULL) { 42 return NULL; 43 } 44 cbor_tag_set_item(res, item); 45 return res; 46 } 47