diff options
Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/iot/coap/coap_option.c')
| -rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/components/iot/coap/coap_option.c | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/iot/coap/coap_option.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/iot/coap/coap_option.c new file mode 100644 index 0000000..0ae74be --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/iot/coap/coap_option.c @@ -0,0 +1,182 @@ +/** + * Copyright (c) 2014 - 2018, Nordic Semiconductor ASA + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form, except as embedded into a Nordic + * Semiconductor ASA integrated circuit in a product or a software update for + * such product, must reproduce the above copyright notice, this list of + * conditions and the following disclaimer in the documentation and/or other + * materials provided with the distribution. + * + * 3. Neither the name of Nordic Semiconductor ASA nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * 4. This software, with or without modification, must only be used with a + * Nordic Semiconductor ASA integrated circuit. + * + * 5. Any software provided in binary form under this license must not be reverse + * engineered, decompiled, modified and/or disassembled. + * + * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS + * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE + * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ +#include <stdlib.h> +#include <string.h> + +#include "coap_option.h" +#include "iot_common.h" + +#if (COAP_DISABLE_API_PARAM_CHECK == 0) + +#define NULL_PARAM_CHECK(PARAM) \ + if ((PARAM) == NULL) \ + { \ + return (NRF_ERROR_NULL | IOT_COAP_ERR_BASE); \ + } + +#else + +#define NULL_PARAM_CHECK(PARAM) + +#endif // COAP_DISABLE_API_PARAM_CHECK + +uint32_t coap_opt_string_encode(uint8_t * p_encoded, uint16_t * p_length, uint8_t * p_string, uint16_t str_len) +{ + NULL_PARAM_CHECK(p_encoded); + NULL_PARAM_CHECK(p_length); + NULL_PARAM_CHECK(p_string); + + if (str_len > *p_length) + { + return (NRF_ERROR_DATA_SIZE | IOT_COAP_ERR_BASE); + } + + memcpy(p_encoded, p_string, str_len); + + *p_length = str_len; + + return NRF_SUCCESS; +} + +uint32_t coap_opt_string_decode(uint8_t * p_string, uint16_t * p_length, uint8_t * p_encoded) +{ + return NRF_SUCCESS; +} + +uint32_t coap_opt_uint_encode(uint8_t * p_encoded, uint16_t * p_length, uint32_t data) +{ + NULL_PARAM_CHECK(p_encoded); + NULL_PARAM_CHECK(p_length); + + uint16_t byte_index = 0; + + if (data <= UINT8_MAX) + { + if (*p_length < sizeof(uint8_t)) + { + return (NRF_ERROR_DATA_SIZE | IOT_COAP_ERR_BASE); + } + + p_encoded[byte_index++] = (uint8_t)data; + } + else if (data <= UINT16_MAX) + { + if (*p_length < sizeof(uint16_t)) + { + return (NRF_ERROR_DATA_SIZE | IOT_COAP_ERR_BASE); + } + + p_encoded[byte_index++] = (uint8_t)((data & 0xFF00) >> 8); + p_encoded[byte_index++] = (uint8_t)(data & 0x00FF); + } + else + { + if (*p_length < sizeof(uint32_t)) + { + return (NRF_ERROR_DATA_SIZE | IOT_COAP_ERR_BASE); + } + + p_encoded[byte_index++] = (uint8_t)((data & 0xFF000000) >> 24); + p_encoded[byte_index++] = (uint8_t)((data & 0x00FF0000) >> 16); + p_encoded[byte_index++] = (uint8_t)((data & 0x0000FF00) >> 8); + p_encoded[byte_index++] = (uint8_t)(data & 0x000000FF); + } + + + + *p_length = byte_index; + + return NRF_SUCCESS; +} + +uint32_t coap_opt_uint_decode(uint32_t * p_data, uint16_t length, uint8_t * p_encoded) +{ + NULL_PARAM_CHECK(p_data); + NULL_PARAM_CHECK(p_encoded); + + uint8_t byte_index = 0; + switch (length) + { + case 0: + { + *p_data = 0; + } + break; + + case 1: + { + *p_data = 0; + *p_data |= p_encoded[byte_index++]; + } + break; + + case 2: + { + *p_data = 0; + *p_data |= (p_encoded[byte_index++] << 8); + *p_data |= (p_encoded[byte_index++]); + } + break; + + case 3: + { + *p_data = 0; + *p_data |= (p_encoded[byte_index++] << 16); + *p_data |= (p_encoded[byte_index++] << 8); + *p_data |= (p_encoded[byte_index++]); + } + break; + + case 4: + { + *p_data = 0; + *p_data |= (p_encoded[byte_index++] << 24); + *p_data |= (p_encoded[byte_index++] << 16); + *p_data |= (p_encoded[byte_index++] << 8); + *p_data |= (p_encoded[byte_index++]); + } + break; + + default: + return (NRF_ERROR_INVALID_LENGTH | IOT_COAP_ERR_BASE); + } + + return NRF_SUCCESS; +} |