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author | Riku Nomoto <riku_nomoto@mail.toyota.co.jp> | 2020-11-19 12:45:32 +0900 |
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committer | Riku Nomoto <riku_nomoto@mail.toyota.co.jp> | 2020-11-19 12:45:32 +0900 |
commit | 8e0e00d21146a84c18f9cf9409e187b4fb0248aa (patch) | |
tree | ef791689dad216ac61091a1d1bd3b928d563aba6 /video_in_hal/nsframework/framework_unified/client/NS_UtilityCenter/src/ns_util_crc.cpp | |
parent | 18df6e21c6743a137e2760c52ca89d0789e90417 (diff) |
Init basesystem source codes.
Signed-off-by: Riku Nomoto <riku_nomoto@mail.toyota.co.jp>
Change-Id: I55aa2f1406ce7f751ae14140b613b53b68995528
Diffstat (limited to 'video_in_hal/nsframework/framework_unified/client/NS_UtilityCenter/src/ns_util_crc.cpp')
-rwxr-xr-x | video_in_hal/nsframework/framework_unified/client/NS_UtilityCenter/src/ns_util_crc.cpp | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/video_in_hal/nsframework/framework_unified/client/NS_UtilityCenter/src/ns_util_crc.cpp b/video_in_hal/nsframework/framework_unified/client/NS_UtilityCenter/src/ns_util_crc.cpp new file mode 100755 index 0000000..af82364 --- /dev/null +++ b/video_in_hal/nsframework/framework_unified/client/NS_UtilityCenter/src/ns_util_crc.cpp @@ -0,0 +1,125 @@ +/* + * @copyright Copyright (c) 2016-2020 TOYOTA MOTOR CORPORATION. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +//////////////////////////////////////////////////////////////////////////////////////////////////// +/// \ingroup tag_NS_UtilityCenter +/// \brief This file contains implementation of APIs to calcuate 16-bit and 32-bit CRC checksum of file. +/// +//////////////////////////////////////////////////////////////////////////////////////////////////// + +//////////////////////////////////////////////////////////////////////////////////////////////////// +// Include Files +//////////////////////////////////////////////////////////////////////////////////////////////////// +#include <native_service/ns_util_crc.h> +#include <stdio.h> + +// buffer size for reading from file +#define MAX_BUFFER_SIZE 4096 + +// Static 32 bit CRC lookup table +UI_16 g_arr_crc16_table[256] = { +}; + +// Static 32 bit CRC lookup table +UI_32 g_arr_crc32_table[256] = { +}; + + +//////////////////////////////////////////////////////////////////////////////////////////////// +/// CalculateCRC16 +/// This API calculates the 16 bit CRC checksum of a file +//////////////////////////////////////////////////////////////////////////////////////////////// +EFrameworkunifiedStatus CalculateCRC16(PCSTR f_c_file_name, UI_16 &f_ui_check_sum) { // NOLINT (readability/nolint) + EFrameworkunifiedStatus l_e_status = eFrameworkunifiedStatusOK; + + CHAR l_c_buffer[MAX_BUFFER_SIZE] = {0}; + size_t l_ui_bytes_read = 0; + FILE *l_p_file = NULL; + + if (NULL != f_c_file_name) { + f_ui_check_sum = 0xFFFF; + + // Open the file + l_p_file = fopen(f_c_file_name, "rbe"); + + if (NULL == l_p_file) { + l_e_status = eFrameworkunifiedStatusFileLoadError; + } else { + l_ui_bytes_read = fread(l_c_buffer, 1, sizeof(l_c_buffer), l_p_file); + + while (0 != l_ui_bytes_read) { // LCOV_EXCL_BR_LINE 11: not a branch + for (UI_32 l_ui_bytes_cnt = 0; l_ui_bytes_cnt < l_ui_bytes_read; l_ui_bytes_cnt++) { // LCOV_EXCL_BR_LINE 11: not a branch + f_ui_check_sum = static_cast<UI_16>( + g_arr_crc16_table[((f_ui_check_sum >> 8) ^ l_c_buffer[l_ui_bytes_cnt]) & 0xFF] ^ (f_ui_check_sum << 8)); + } + + l_ui_bytes_read = fread(l_c_buffer, 1, sizeof(l_c_buffer), l_p_file); + } + + fclose(l_p_file); + l_p_file = NULL; + } + + f_ui_check_sum = static_cast<UI_16>(~f_ui_check_sum); + } else { + l_e_status = eFrameworkunifiedStatusInvldParam; + } + + return l_e_status; +} + +//////////////////////////////////////////////////////////////////////////////////////////////// +/// CalculateCRC32 +/// This API calculates the 32 bit CRC checksum of a file +//////////////////////////////////////////////////////////////////////////////////////////////// +EFrameworkunifiedStatus CalculateCRC32(PCSTR f_c_file_name, UI_32 &f_ui_check_sum) { // NOLINT (readability/nolint) + EFrameworkunifiedStatus l_e_status = eFrameworkunifiedStatusOK; + + CHAR l_c_buffer[MAX_BUFFER_SIZE] = {0}; + size_t l_ui_bytes_read = 0; + FILE *l_p_file = NULL; + + if (NULL != f_c_file_name) { + f_ui_check_sum = 0xFFFFFFFF; + + // Open the file + l_p_file = fopen(f_c_file_name, "rbe"); + + if (NULL == l_p_file) { + l_e_status = eFrameworkunifiedStatusFileLoadError; + } else { + l_ui_bytes_read = fread(l_c_buffer, 1, sizeof(l_c_buffer), l_p_file); + + while (0 != l_ui_bytes_read) { // LCOV_EXCL_BR_LINE 11: not a branch + for (UI_32 l_ui_bytes_cnt = 0; l_ui_bytes_cnt < l_ui_bytes_read; l_ui_bytes_cnt++) { // LCOV_EXCL_BR_LINE 11: not a branch + f_ui_check_sum = (f_ui_check_sum >> 8) + ^ g_arr_crc32_table[(l_c_buffer[l_ui_bytes_cnt] ^ f_ui_check_sum) & 0xFF]; + } + + l_ui_bytes_read = fread(l_c_buffer, 1, sizeof(l_c_buffer), l_p_file); + } + + fclose(l_p_file); + l_p_file = NULL; + } + + f_ui_check_sum = ~f_ui_check_sum; + } else { + l_e_status = eFrameworkunifiedStatusInvldParam; + } + + return l_e_status; +} |