static int
prepare_target(struct list_head *dentry_list, struct win32_apply_ctx *ctx)
{
+ int ret;
NTSTATUS status;
size_t path_max;
/* Open handle to the target directory (possibly creating it). */
- if (func_RtlDosPathNameToNtPathName_U_WithStatus) {
- status = (*func_RtlDosPathNameToNtPathName_U_WithStatus)(ctx->common.target,
- &ctx->target_ntpath,
- NULL, NULL);
- } else {
- if ((*func_RtlDosPathNameToNtPathName_U)(ctx->common.target,
- &ctx->target_ntpath,
- NULL, NULL))
- status = STATUS_SUCCESS;
- else
- status = STATUS_NO_MEMORY;
- }
- if (!NT_SUCCESS(status)) {
- if (status == STATUS_NO_MEMORY) {
- return WIMLIB_ERR_NOMEM;
- } else {
- ERROR("\"%ls\": invalid path name "
- "(status=0x%08"PRIx32")",
- ctx->common.target, (u32)status);
- return WIMLIB_ERR_INVALID_PARAM;
- }
- }
+ ret = win32_path_to_nt_path(ctx->common.target, &ctx->target_ntpath);
+ if (ret)
+ return ret;
ctx->attr.Length = sizeof(ctx->attr);
ctx->attr.ObjectName = &ctx->target_ntpath;
struct add_image_params *params)
{
wchar_t *path;
- DWORD dret;
- size_t path_nchars;
int ret;
+ UNICODE_STRING ntpath;
struct winnt_scan_stats stats;
/* WARNING: There is no check for overflow later when this buffer is
if (!path)
return WIMLIB_ERR_NOMEM;
- /* Translate into full path. */
- dret = GetFullPathName(root_disk_path, WINDOWS_NT_MAX_PATH - 3,
- &path[4], NULL);
+ ret = win32_path_to_nt_path(root_disk_path, &ntpath);
+ if (ret)
+ goto out_free_path;
- if (unlikely(dret == 0 || dret >= WINDOWS_NT_MAX_PATH - 3)) {
- ERROR("Can't get full path name for \"%ls\"", root_disk_path);
- return WIMLIB_ERR_UNSUPPORTED;
+ if (ntpath.Length < 4 * sizeof(wchar_t) ||
+ ntpath.Length > WINDOWS_NT_MAX_PATH * sizeof(wchar_t) ||
+ wmemcmp(ntpath.Buffer, L"\\??\\", 4))
+ {
+ ERROR("\"%ls\": unrecognized path format", root_disk_path);
+ ret = WIMLIB_ERR_INVALID_PARAM;
+ goto out_free_path;
}
- /* Add \??\ prefix to form the NT namespace path. */
- wmemcpy(path, L"\\??\\", 4);
- path_nchars = dret + 4;
-
- /* Strip trailing slashes. If we don't do this, we may create a path
- * with multiple consecutive backslashes, which for some reason causes
- * Windows to report that the file cannot be found. */
- while (unlikely(path[path_nchars - 1] == L'\\' &&
- path[path_nchars - 2] != L':'))
- path[--path_nchars] = L'\0';
+ params->capture_root_nchars = ntpath.Length / sizeof(wchar_t);
+ wmemcpy(path, ntpath.Buffer, params->capture_root_nchars);
+ path[params->capture_root_nchars] = L'\0';
- params->capture_root_nchars = path_nchars;
+ HeapFree(GetProcessHeap(), 0, ntpath.Buffer);
memset(&stats, 0, sizeof(stats));
ret = winnt_build_dentry_tree_recursive(root_ret, NULL,
- path, path_nchars, L"", 0,
- params, &stats, 0);
+ path, params->capture_root_nchars,
+ L"", 0, params, &stats, 0);
+out_free_path:
FREE(path);
if (ret == 0)
winnt_do_scan_warnings(root_disk_path, &stats);
cleanup_dll(&ntdll_spec);
}
+/*
+ * Translates a Win32-namespace path into an NT-namespace path.
+ *
+ * On success, returns 0. The NT-namespace path will be stored in the
+ * UNICODE_STRING structure pointed to by nt_path. nt_path->Buffer will be set
+ * to a new buffer that must later be freed with HeapFree(). (Really
+ * RtlHeapFree(), but HeapFree() seems to be the same thing.)
+ *
+ * On failure, returns WIMLIB_ERR_NOMEM or WIMLIB_ERR_INVALID_PARAM.
+ */
+int
+win32_path_to_nt_path(const wchar_t *win32_path, UNICODE_STRING *nt_path)
+{
+ NTSTATUS status;
+
+ if (func_RtlDosPathNameToNtPathName_U_WithStatus) {
+ status = (*func_RtlDosPathNameToNtPathName_U_WithStatus)(win32_path,
+ nt_path,
+ NULL, NULL);
+ } else {
+ if ((*func_RtlDosPathNameToNtPathName_U)(win32_path, nt_path,
+ NULL, NULL))
+ status = STATUS_SUCCESS;
+ else
+ status = STATUS_NO_MEMORY;
+ }
+
+ if (likely(NT_SUCCESS(status)))
+ return 0;
+
+ if (status == STATUS_NO_MEMORY)
+ return WIMLIB_ERR_NOMEM;
+
+ ERROR("\"%ls\": invalid path name (status=0x%08"PRIx32")",
+ win32_path, (u32)status);
+ return WIMLIB_ERR_INVALID_PARAM;
+}
+
#endif /* __WIN32__ */