bool
tr_sys_path_is_same (const char * path1,
const char * path2,
tr_error ** error)
{
bool ret = false;
wchar_t * wide_path1 = NULL;
wchar_t * wide_path2 = NULL;
HANDLE handle1 = INVALID_HANDLE_VALUE;
HANDLE handle2 = INVALID_HANDLE_VALUE;
BY_HANDLE_FILE_INFORMATION fi1, fi2;
assert (path1 != NULL);
assert (path2 != NULL);
wide_path1 = path_to_native_path (path1);
if (wide_path1 == NULL)
goto fail;
wide_path2 = path_to_native_path (path2);
if (wide_path2 == NULL)
goto fail;
handle1 = CreateFileW (wide_path1, 0, 0, NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL);
if (handle1 == INVALID_HANDLE_VALUE)
goto fail;
handle2 = CreateFileW (wide_path2, 0, 0, NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL);
if (handle2 == INVALID_HANDLE_VALUE)
goto fail;
/* TODO: Use GetFileInformationByHandleEx on >= Server 2012 */
if (!GetFileInformationByHandle (handle1, &fi1) || !GetFileInformationByHandle (handle2, &fi2))
goto fail;
ret = fi1.dwVolumeSerialNumber == fi2.dwVolumeSerialNumber &&
fi1.nFileIndexHigh == fi2.nFileIndexHigh &&
fi1.nFileIndexLow == fi2.nFileIndexLow;
goto cleanup;
fail:
set_system_error_if_file_found (error, GetLastError ());
cleanup:
CloseHandle (handle2);
CloseHandle (handle1);
tr_free (wide_path2);
tr_free (wide_path1);
return ret;
}
bool
tr_sys_path_remove (const char * path,
tr_error ** error)
{
bool ret = false;
wchar_t * wide_path;
assert (path != NULL);
wide_path = path_to_native_path (path);
if (wide_path != NULL)
{
const DWORD attributes = GetFileAttributesW (wide_path);
if (attributes != INVALID_FILE_ATTRIBUTES)
{
if ((attributes & FILE_ATTRIBUTE_DIRECTORY) != 0)
ret = RemoveDirectoryW (wide_path);
else
ret = DeleteFileW (wide_path);
}
}
if (!ret)
set_system_error (error, GetLastError ());
tr_free (wide_path);
return ret;
}
static tr_sys_file_t
open_file (const char * path,
DWORD access,
DWORD disposition,
DWORD flags,
tr_error ** error)
{
tr_sys_file_t ret = TR_BAD_SYS_FILE;
wchar_t * wide_path;
assert (path != NULL);
wide_path = path_to_native_path (path);
if (wide_path != NULL)
ret = CreateFileW (wide_path, access, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
NULL, disposition, flags, NULL);
if (ret == TR_BAD_SYS_FILE)
set_system_error (error, GetLastError ());
tr_free (wide_path);
return ret;
}
bool tr_sys_path_remove(char const* path, tr_error** error)
{
TR_ASSERT(path != NULL);
bool ret = false;
wchar_t* wide_path = path_to_native_path(path);
if (wide_path != NULL)
{
DWORD const attributes = GetFileAttributesW(wide_path);
if (attributes != INVALID_FILE_ATTRIBUTES)
{
if ((attributes & FILE_ATTRIBUTE_DIRECTORY) != 0)
{
ret = RemoveDirectoryW(wide_path);
}
else
{
ret = DeleteFileW(wide_path);
}
}
}
if (!ret)
{
set_system_error(error, GetLastError());
}
tr_free(wide_path);
return ret;
}
bool tr_sys_path_get_info(char const* path, int flags, tr_sys_path_info* info, tr_error** error)
{
TR_ASSERT(path != NULL);
TR_ASSERT(info != NULL);
bool ret = false;
wchar_t* wide_path = path_to_native_path(path);
if ((flags & TR_SYS_PATH_NO_FOLLOW) == 0)
{
HANDLE handle = INVALID_HANDLE_VALUE;
if (wide_path != NULL)
{
handle = CreateFileW(wide_path, 0, 0, NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL);
}
if (handle != INVALID_HANDLE_VALUE)
{
tr_error* my_error = NULL;
ret = tr_sys_file_get_info(handle, info, &my_error);
if (!ret)
{
tr_error_propagate(error, &my_error);
}
CloseHandle(handle);
}
else
{
set_system_error(error, GetLastError());
}
}
else
{
WIN32_FILE_ATTRIBUTE_DATA attributes;
if (wide_path != NULL)
{
ret = GetFileAttributesExW(wide_path, GetFileExInfoStandard, &attributes);
}
if (ret)
{
stat_to_sys_path_info(attributes.dwFileAttributes, attributes.nFileSizeLow, attributes.nFileSizeHigh,
&attributes.ftLastWriteTime, info);
}
else
{
set_system_error(error, GetLastError());
}
}
tr_free(wide_path);
return ret;
}
bool
tr_sys_path_rename (const char * src_path,
const char * dst_path,
tr_error ** error)
{
bool ret = false;
wchar_t * wide_src_path;
wchar_t * wide_dst_path;
assert (src_path != NULL);
assert (dst_path != NULL);
wide_src_path = path_to_native_path (src_path);
wide_dst_path = path_to_native_path (dst_path);
if (wide_src_path != NULL && wide_dst_path != NULL)
{
DWORD flags = MOVEFILE_REPLACE_EXISTING;
DWORD attributes;
attributes = GetFileAttributesW (wide_src_path);
if (attributes != INVALID_FILE_ATTRIBUTES &&
(attributes & FILE_ATTRIBUTE_DIRECTORY) != 0)
{
flags = 0;
}
else
{
attributes = GetFileAttributesW (wide_dst_path);
if (attributes != INVALID_FILE_ATTRIBUTES &&
(attributes & FILE_ATTRIBUTE_DIRECTORY) != 0)
flags = 0;
}
ret = MoveFileExW (wide_src_path, wide_dst_path, flags);
}
if (!ret)
set_system_error (error, GetLastError ());
tr_free (wide_dst_path);
tr_free (wide_src_path);
return ret;
}
char *
tr_sys_path_resolve (const char * path,
tr_error ** error)
{
char * ret = NULL;
wchar_t * wide_path;
wchar_t * wide_ret = NULL;
HANDLE handle = INVALID_HANDLE_VALUE;
DWORD wide_ret_size;
assert (path != NULL);
wide_path = path_to_native_path (path);
if (wide_path == NULL)
goto fail;
handle = CreateFileW (wide_path, FILE_READ_EA,
FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL);
if (handle == INVALID_HANDLE_VALUE)
goto fail;
wide_ret_size = GetFinalPathNameByHandleW (handle, NULL, 0, 0);
if (wide_ret_size == 0)
goto fail;
wide_ret = tr_new (wchar_t, wide_ret_size);
if (GetFinalPathNameByHandleW (handle, wide_ret, wide_ret_size, 0) != wide_ret_size - 1)
goto fail;
/* Resolved path always begins with "\\?\", so skip those first four chars. */
ret = tr_win32_native_to_utf8 (wide_ret + 4, -1);
if (ret != NULL)
goto cleanup;
fail:
set_system_error (error, GetLastError ());
tr_free (ret);
ret = NULL;
cleanup:
tr_free (wide_ret);
tr_free (wide_path);
if (handle != INVALID_HANDLE_VALUE)
CloseHandle (handle);
return ret;
}
static bool create_dir(char const* path, int flags, int permissions, bool okay_if_exists, tr_error** error)
{
TR_ASSERT(path != NULL);
(void)permissions;
bool ret;
DWORD error_code = ERROR_SUCCESS;
wchar_t* wide_path = path_to_native_path(path);
if ((flags & TR_SYS_DIR_CREATE_PARENTS) != 0)
{
error_code = SHCreateDirectoryExW(NULL, wide_path, NULL);
ret = error_code == ERROR_SUCCESS;
}
else
{
ret = CreateDirectoryW(wide_path, NULL);
if (!ret)
{
error_code = GetLastError();
}
}
if (!ret && error_code == ERROR_ALREADY_EXISTS && okay_if_exists)
{
DWORD const attributes = GetFileAttributesW(wide_path);
if (attributes != INVALID_FILE_ATTRIBUTES &&
(attributes & FILE_ATTRIBUTE_DIRECTORY) != 0)
{
ret = true;
}
}
if (!ret)
{
set_system_error(error, error_code);
}
tr_free(wide_path);
return ret;
}
bool
tr_sys_path_exists (const char * path,
tr_error ** error)
{
bool ret = false;
wchar_t * wide_path;
HANDLE handle = INVALID_HANDLE_VALUE;
assert (path != NULL);
wide_path = path_to_native_path (path);
if (wide_path != NULL)
{
DWORD attributes = GetFileAttributesW (wide_path);
if (attributes != INVALID_FILE_ATTRIBUTES)
{
if (attributes & FILE_ATTRIBUTE_REPARSE_POINT)
{
handle = CreateFileW (wide_path, 0, 0, NULL, OPEN_EXISTING,
FILE_FLAG_BACKUP_SEMANTICS, NULL);
ret = handle != INVALID_HANDLE_VALUE;
}
else
{
ret = true;
}
}
}
if (!ret)
set_system_error_if_file_found (error, GetLastError ());
if (handle != INVALID_HANDLE_VALUE)
CloseHandle (handle);
tr_free (wide_path);
return ret;
}
