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      1 /*
      2  * Copyright (C) 2016 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #include "FileUtils.h"
     18 
     19 #include <sys/stat.h>
     20 #include <cstdio>
     21 #include <string>
     22 #include <vector>
     23 
     24 #include <cutils/log.h>
     25 
     26 std::vector<uint8_t> readWholeFile(const std::string& filePath) {
     27     FILE* fp = fopen(filePath.c_str(), "r");
     28     LOG_ALWAYS_FATAL_IF(fp == nullptr);
     29     struct stat st;
     30     LOG_ALWAYS_FATAL_IF(fstat(fileno(fp), &st) != 0);
     31 
     32     std::vector<uint8_t> result(st.st_size);
     33     LOG_ALWAYS_FATAL_IF(fread(result.data(), 1, st.st_size, fp) != static_cast<size_t>(st.st_size));
     34     fclose(fp);
     35     return result;
     36 }
     37