utimens

src/CryFuse.cpp

@@ -180,17 +180,13 @@ int CryFuse::ftruncate(const path &path, off_t size, fuse_file_info *fileinfo) {
 
 //TODO
 int CryFuse::utimens(const path &path, const timespec times[2]) {
-  UNUSED(times);
-  printf("NOT IMPLEMENTED: utimens(%s, _)\n", path.c_str());
-  //auto real_path = _device->RootDir() / path;
-  //struct timeval tv[2];
-  //tv[0].tv_sec = times[0].tv_sec;
-  //tv[0].tv_usec = times[0].tv_nsec / 1000;
-  //tv[1].tv_sec = times[1].tv_sec;
-  //tv[1].tv_usec = times[1].tv_nsec / 1000;
-  //int retstat = ::lutimes(real_path.c_str(), tv);
-  //return errcode_map(retstat);
-  return 0;
+  //printf("utimens(%s, _)\n", path.c_str());
+  try {
+    _device->utimens(path, times);
+    return 0;
+  } catch (CryErrnoException &e) {
+    return -e.getErrno();
+  }
 }
 
 int CryFuse::open(const path &path, fuse_file_info *fileinfo) {

src/cryfs_lib/CryDevice.cpp

@@ -144,3 +144,7 @@ void CryDevice::closeDir(int descriptor) {
   _open_dirs.close(descriptor);
 }
 
+void CryDevice::utimens(const bf::path &path, const timespec times[2]) {
+  auto node = Load(path);
+  node->utimens(times);
+}

src/cryfs_lib/CryDevice.h

@@ -39,10 +39,10 @@ public:
 	void rmdir(const bf::path &path);
 	void unlink(const bf::path &path);
 	void rename(const bf::path &from, const bf::path &to);
-
 	int openDir(const bf::path &path);
 	std::unique_ptr<std::vector<std::string>> readDir(int descriptor);
 	void closeDir(int descriptor);
+	void utimens(const bf::path &path, const timespec times[2]);
 
 	const bf::path &RootDir() const;
 private:

src/cryfs_lib/CryNode.cpp

@@ -1,5 +1,7 @@
 #include "CryNode.h"
 
+#include <sys/time.h>
+
 #include "CryDevice.h"
 #include "CryErrnoException.h"
 
@@ -29,4 +31,11 @@ void CryNode::rename(const bf::path &to) {
   _path = to;
 }
 
+void CryNode::utimens(const timespec times[2]) {
+  struct timeval timevals[2];
+  TIMESPEC_TO_TIMEVAL(&timevals[0], &times[0]);
+  TIMESPEC_TO_TIMEVAL(&timevals[1], &times[1]);
+  ::lutimes(base_path().c_str(), timevals);
+}
+
 } /* namespace cryfs */

src/cryfs_lib/CryNode.h

@@ -20,6 +20,7 @@ public:
   void stat(struct ::stat *result) const;
   void access(int mask) const;
   void rename(const bf::path &to);
+  void utimens(const timespec times[2]);
 
 protected:
   bf::path base_path() const;