/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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#include <tinycbor/cbor_buf_reader.h>
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#include <tinycbor/extract_number_p.h>
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static uint8_t
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cbuf_buf_reader_get8(struct cbor_decoder_reader *d, int offset)
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{
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struct cbor_buf_reader *cb = (struct cbor_buf_reader *) d;
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return cb->buffer[offset];
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}
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static uint16_t
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cbuf_buf_reader_get16(struct cbor_decoder_reader *d, int offset)
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{
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struct cbor_buf_reader *cb = (struct cbor_buf_reader *) d;
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return get16(cb->buffer + offset);
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}
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static uint32_t
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cbuf_buf_reader_get32(struct cbor_decoder_reader *d, int offset)
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{
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uint32_t val;
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struct cbor_buf_reader *cb = (struct cbor_buf_reader *) d;
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val = get32(cb->buffer + offset);
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return val;
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}
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static uint64_t
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cbuf_buf_reader_get64(struct cbor_decoder_reader *d, int offset)
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{
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struct cbor_buf_reader *cb = (struct cbor_buf_reader *) d;
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return get64(cb->buffer + offset);
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}
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static uintptr_t
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cbor_buf_reader_cmp(struct cbor_decoder_reader *d, char *dst, int src_offset,
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size_t len)
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{
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struct cbor_buf_reader *cb = (struct cbor_buf_reader *) d;
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return memcmp(dst, cb->buffer + src_offset, len) == 0;
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}
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static uintptr_t
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cbor_buf_reader_cpy(struct cbor_decoder_reader *d, char *dst, int src_offset,
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size_t len)
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{
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struct cbor_buf_reader *cb = (struct cbor_buf_reader *) d;
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return (uintptr_t) memcpy(dst, cb->buffer + src_offset, len);
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}
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void
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cbor_buf_reader_init(struct cbor_buf_reader *cb, const uint8_t *buffer,
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size_t data)
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{
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cb->buffer = buffer;
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cb->r.get8 = &cbuf_buf_reader_get8;
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cb->r.get16 = &cbuf_buf_reader_get16;
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cb->r.get32 = &cbuf_buf_reader_get32;
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cb->r.get64 = &cbuf_buf_reader_get64;
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cb->r.cmp = &cbor_buf_reader_cmp;
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cb->r.cpy = &cbor_buf_reader_cpy;
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cb->r.message_size = data;
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}
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