void CreateTestFileHardLink(const TCHAR *szOriginalFile, const TCHAR *szNewFileName)
{
TCHAR szCopy[MAX_PATH];
TCHAR *szRet = PathCombine(szCopy, m_szResourceDirectory, szNewFileName);
ASSERT_NE(nullptr, szRet);
BOOL bRet = CreateHardLink(szCopy, szOriginalFile, NULL);
ASSERT_NE(FALSE, bRet);
}
static bool
S_hard_link(char *from8, char *to8) {
if (CreateHardLink(to8, from8, NULL)) {
return true;
}
else {
char *win_error = Err_win_error();
Err_set_error(Err_new(Str_newf("CreateHardLink for new file '%s' from '%s' failed: %s",
to8, from8, win_error)));
FREEMEM(win_error);
return false;
}
}
BOOL CreateHardLinkOtherwiseCopy(const char *targetName, const char *linkName)
{
BOOL result = CreateHardLink(linkName, targetName, NULL);
if (!result) {
DWORD errNr = GetLastError();
if (errNr != ERROR_INVALID_FUNCTION) { /* In case a hardlink is not supported, e.g. FAT32. */
printf("Windows System Error %d occurred during creation of link.\n", errNr);
} else {
BOOL FailIfExists = TRUE;
result = CopyFile(targetName, linkName, FailIfExists);
if (!result) {
printf("Windows System Error %d occurred during copying of file.\n", GetLastError());
}
}
}
return result;
}
BOOL WaitForSingleFile(_In_ LPCTTSTR lpPathName, _In_ DWORD dwNotifyFilter)
{
UUIDCreate()
StringFromCLSID
GetTempPath(tmpdir, MAX_PATH);
CreateDirectory(tmpdir+guid);
CreateHardLink(tmpdir+guid+guid, srcpath, NULL);
handle = FindFirstChangeNotification(tmpdir, FALSE, FILE_NOTIFY_CHANGE_LAST_WRITE);
if(handle == INVALID_HANDLE_VALUE)
{
printf("OHH NO\n");
ExitProcess(1);
}
WaitForSingleObject(handle, INFINITE);
DeleteFile(tmpdir+guid+guid);
DeleteDirectory(tmpdir+guid);
}
int
maildirFclose(FILE *fp, char *filename)
{
char *tmp, *filename_new;
if (fp == NULL || filename == NULL)
goto error0;
if ((filename_new = strdup(filename)) == NULL)
goto error0;
if ((tmp = strstr(filename_new, "/tmp/")) == NULL)
goto error1;
/* Replace "tmp" by "new" in filename_new. */
memcpy(tmp+1, "new", sizeof ("new")-1);
#ifdef __unix__
if (link(filename, filename_new))
goto error1;
#endif
#ifdef __WIN32__
if (!CreateHardLink(filename_new, filename, NULL))
goto error1;
#endif
if (fclose(fp))
goto error1;
(void) unlink(filename);
free(filename);
return 0;
error1:
free(filename_new);
error0:
return -1;
}
int
link(const char* oldpath, const char* newpath)
{
if (CreateHardLink(newpath, oldpath, NULL)) {
return 0;
}
else {
DWORD error = GetLastError();
if (error == ERROR_FILE_NOT_FOUND) {
errno = ENOENT;
}
else {
// for anything but the ENOENT-equivalent, we'll
// log the error and set errno to something generic-
// sounding ("operation not permitted")
dprintf(D_ALWAYS,
"link: CreateHardLink error: %u\n",
(unsigned)error);
errno = EPERM;
}
return -1;
}
}
nfsstat3 CNFS3Prog::ProcedureLINK(void)
{
PrintLog("LINK");
char *filePath;
diropargs3 link;
std::string dirName;
std::string fileName;
nfsstat3 stat;
post_op_attr obj_attributes;
wcc_data dir_wcc;
filePath = GetPath();
ReadDirectory(dirName, fileName);
char *linkFullPath = GetFullPath(dirName, fileName);
if (CreateHardLink(linkFullPath, filePath, NULL) == 0) {
stat = NFS3ERR_IO;
}
stat = CheckFile(linkFullPath);
if (stat == NFS3_OK) {
obj_attributes.attributes_follow = GetFileAttributesForNFS(filePath, &obj_attributes.attributes);
if (!obj_attributes.attributes_follow) {
stat = NFS3ERR_IO;
}
}
dir_wcc.after.attributes_follow = GetFileAttributesForNFS((char*)dirName.c_str(), &dir_wcc.after.attributes);
Write(&stat);
Write(&obj_attributes);
Write(&dir_wcc);
return stat;
}
bool FileSystem::link(const Path& old_path, const Path& new_path) {
return CreateHardLink(new_path.c_str(), old_path.c_str(), NULL) == TRUE;
}
/* Tag( external_link )
*/
int external_link (char *oldpath, char *newpath)
{
return CreateHardLink (expand_file_name (newpath),
expand_file_name (oldpath), NULL);
}
bool FileSystem::hardLinkFiles(File* file1, File* file2) {
Statistics::getInstance()->hardLinks++;
LPWSTR file1Name = new WCHAR[MAX_PATH_LENGTH];
LPWSTR file2Name = new WCHAR[MAX_PATH_LENGTH];
LPWSTR file2Backup = new WCHAR[MAX_PATH_LENGTH];
file1->copyName(cleanString(file1Name));
file2->copyName(cleanString(file2Name));
logInfo(L"Linking %s and %s", file1Name, file2Name);
// Step 1: precaution - rename original file
wsprintf(file2Backup, L"%s.backup", file2Name);
if (!MoveFile(file2Name, file2Backup)) {
logError(L"Unable to move file to backup: %i", GetLastError());
delete file1Name;
delete file2Name;
delete file2Backup;
return false;
}
// Step 2: create hard link
if (!CreateHardLink(file2Name, file1Name, NULL)) {
logError(L"Unable to create hard link: %i", GetLastError());
delete file1Name;
delete file2Name;
delete file2Backup;
return false;
}
// Step 3: remove backup file (orphan)
if (!DeleteFile(file2Backup)) {
logError(L"Unable to delete file: %i, trying to change attribute...", GetLastError());
if (!SetFileAttributes(file2Backup, FILE_ATTRIBUTE_NORMAL) ||
!DeleteFile(file2Backup)) {
logError(L"Finally unable to delete file: %i", GetLastError());
delete file1Name;
delete file2Name;
delete file2Backup;
return false;
}
}
// Step 4: re-assign the old short file name
// NOTE: This seems to be NOT possible! THis seems to be a NTFS Limitation, no hard link alternative file names are possible!
//if (file2->getShortName() != NULL) {
//
// HANDLE hFile = CreateFile(file2Name, GENERIC_ALL, 0, 0, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL);
// if (!SetFileShortName(hFile, file2->getShortName())) {
// logError(L"Unable to set the files short name to: \"%s\" Error: %i", file2->getShortName(), GetLastError());
// }
// CloseHandle(hFile);
//}
delete file1Name;
delete file2Name;
delete file2Backup;
Statistics::getInstance()->hardLinksSuccess++;
return true;
}