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  1. #include <iostream>
  2. #include <fstream>
  3. #include <cstring>
  4. #include <string>
  5.  
  6. void getFileName(const std::string& path, std::string& fileName) {
  7.     int pos = (int)path.size() - 1;
  8.     for (; pos >= 0; --pos) {
  9.         if (path[pos] == '/') {
  10.             break;
  11.         }
  12.     }
  13.     fileName = path.substr(pos+1);
  14. }
  15.  
  16. void formatDirPath(std::string& dirPath) {
  17.     if (!dirPath.empty() || dirPath.back() != '/') {
  18.         dirPath += '/';
  19.     }
  20. }
  21.  
  22. int getFileSize(std::ifstream& fin) {
  23.     fin.seekg(0, fin.end);
  24.     int fileSize = fin.tellg();
  25.     fin.seekg(0);
  26.     return fileSize;
  27. }
  28.  
  29. void readBinFile(const std::string& path, int& bufferSize, char*& buffer) {
  30.     std::ifstream fin(path, std::ios::binary);
  31.     if (!fin.is_open()) {
  32.         std::cout << "Cannot open " << path << '\n';
  33.         return;
  34.     }
  35.     bufferSize = getFileSize(fin);
  36.     buffer = new char[bufferSize];
  37.     fin.read(buffer, bufferSize);
  38.     fin.close();
  39. }
  40.  
  41. void writeBinFile(const std::string& path, int bufferSize, char* buffer) {
  42.     std::ofstream fout(path, std::ios::binary);
  43.     if (!fout.is_open()) {
  44.         std::cout << "Cannot open " << path << '\n';
  45.         return;
  46.     }
  47.     fout.write(buffer, bufferSize);
  48.     fout.close();
  49. }
  50.  
  51. int main(int argc, char** argv) {
  52.     std::string filePath;
  53.     std::string outDir;
  54.  
  55.     if (argc != 5) {
  56.         std::cout << "Invalid arguments\n";
  57.         return 0;
  58.     } else {
  59.         for (int i = 1; i < 5; i+=2) {
  60.             if (strcmp(argv[i], "-s") == 0) {
  61.                 filePath = argv[i+1];
  62.             } else if (strcmp(argv[i], "-d") == 0) {
  63.                 outDir = argv[i+1];
  64.             }
  65.         }
  66.         if (filePath.empty()) {
  67.             std::cout << "Source file not found in arguments!\n";
  68.             return 0;
  69.         } else if (outDir.empty()) {
  70.             std::cout << "Destination not found in arguments!\n";
  71.             return 0;
  72.         }
  73.     }
  74.  
  75.  
  76.     std::string fileName;
  77.     getFileName(filePath, fileName);
  78.  
  79.     formatDirPath(outDir);
  80.     std::string outPath = outDir + fileName;
  81.  
  82.     int bufferSize;
  83.     char* buffer = nullptr;
  84.     readBinFile(filePath, bufferSize, buffer);
  85.  
  86.     writeBinFile(outPath, bufferSize, buffer);
  87.  
  88.     delete[] buffer;
  89.  
  90.     return 0;
  91. }
Success #stdin #stdout 0.01s 5548KB
comments (?)
stdin 
Standard input is empty
stdout 
Invalid arguments
https://ideone.com/zBGEG1
language:
C++ (gcc 8.3)
created:
1 year ago
visibility:
secret

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