Debug an issue in existing C++ program on data files questing from ftp server --

Microsoft Visual Studio/C++/curl.h/netcdf.h Issue specification: The program was written specifically for accessing data of the 'GLBu0.08' grids through Hycom [login to view URL] The program worked well for this grid but FAILED TO FIND any files when I attempted to access the data of 'GLBv0.08' grids. The two worked and failed ftp addresses being: ftp://[login to view URL] and ftp://[login to view URL] My guess: The file names are different in lengths. GLBu0.08 files have substrings 'glb' while GLBv0.08 files have substring 'glbv' It might be related to the curl options. std::string buffer(""); if (curl) { curl_easy_setopt(curl, CURLOPT_URL, yInfo.ftpFileBase.c_str()); curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_callback); curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void*)(&buffer)); /* list only */ curl_easy_setopt(curl, CURLOPT_DIRLISTONLY, 1L); int ret = curl_easy_perform(curl); if (ret != CURLE_OK) { std::cout << "Failled to read file names. Error code: "<< ret <<std::endl; } curl_easy_cleanup(curl); } For the worked case, the curl returned 'buffer' with good length ([login to view URL]() = 11368), whereas for the failed case the curl returned 'buffer' with bad length ([login to view URL]() = 5), which might cause the issue.