82 lines
1.9 KiB
C++
82 lines
1.9 KiB
C++
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#include "CryDir.h"
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <dirent.h>
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#include "fusepp/FuseErrnoException.h"
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#include "CryDevice.h"
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#include "CryFile.h"
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//TODO Get rid of this in favor of exception hierarchy
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using fusepp::CHECK_RETVAL;
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namespace bf = boost::filesystem;
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using std::unique_ptr;
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using std::make_unique;
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using std::string;
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using std::vector;
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namespace cryfs {
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CryDir::CryDir(CryDevice *device, const bf::path &path)
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:CryNode(device, path) {
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assert(bf::is_directory(base_path()));
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}
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CryDir::~CryDir() {
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}
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unique_ptr<fusepp::FuseFile> CryDir::createFile(const string &name, mode_t mode) {
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auto file_path = base_path() / name;
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//Create file
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int fd = ::creat(file_path.c_str(), mode);
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CHECK_RETVAL(fd);
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::close(fd);
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return make_unique<CryFile>(device(), path() / name);
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}
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unique_ptr<fusepp::FuseDir> CryDir::createDir(const string &name, mode_t mode) {
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auto dir_path = base_path() / name;
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//Create dir
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int retval = ::mkdir(dir_path.c_str(), mode);
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CHECK_RETVAL(retval);
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return make_unique<CryDir>(device(), path() / name);
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}
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void CryDir::rmdir() {
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int retval = ::rmdir(base_path().c_str());
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CHECK_RETVAL(retval);
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}
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unique_ptr<vector<string>> CryDir::children() const {
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DIR *dir = ::opendir(base_path().c_str());
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if (dir == nullptr) {
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throw fusepp::FuseErrnoException(errno);
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}
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// Set errno=0 so we can detect whether it changed later
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errno = 0;
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auto result = make_unique<vector<string>>();
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struct dirent *entry = ::readdir(dir);
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while(entry != nullptr) {
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result->push_back(entry->d_name);
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entry = ::readdir(dir);
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}
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//On error, ::readdir returns nullptr and sets errno.
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if (errno != 0) {
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int readdir_errno = errno;
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::closedir(dir);
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throw fusepp::FuseErrnoException(readdir_errno);
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}
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int retval = ::closedir(dir);
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CHECK_RETVAL(retval);
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return result;
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}
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} /* namespace cryfs */
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