1 files changed, 90 insertions, 0 deletions
diff --git a/testing/tools/fileid/win_fileid.cpp b/testing/tools/fileid/win_fileid.cpp
new file mode 100644
index 000000000..263229882
--- /dev/null
+++ b/testing/tools/fileid/win_fileid.cpp
@@ -0,0 +1,90 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <windows.h>
+#include <dbghelp.h>
+
+const DWORD CV_SIGNATURE_RSDS = 0x53445352; // 'SDSR'
+
+struct CV_INFO_PDB70 {
+  DWORD      CvSignature;
+  GUID       Signature;
+  DWORD      Age;
+  BYTE       PdbFileName[1];
+};
+
+void print_guid(const GUID& guid, DWORD age)
+{
+  printf("%08X%04X%04X%02X%02X%02X%02X%02X%02X%02X%02X%X",
+         guid.Data1, guid.Data2, guid.Data3,
+         guid.Data4[0], guid.Data4[1], guid.Data4[2], guid.Data4[3],
+         guid.Data4[4], guid.Data4[5], guid.Data4[6], guid.Data4[7],
+         age);
+}
+
+int main(int argc, char** argv)
+{
+  if (argc != 2) {
+    fprintf(stderr, "usage: fileid <file>\n");
+    return 1;
+  }
+
+  HANDLE file = CreateFileA(argv[1],
+                            GENERIC_READ,
+                            FILE_SHARE_READ,
+                            nullptr,
+                            OPEN_EXISTING,
+                            FILE_ATTRIBUTE_NORMAL,
+                            nullptr);
+  if (file == INVALID_HANDLE_VALUE) {
+    fprintf(stderr, "Couldn't open file: %s\n", argv[1]);
+    return 1;
+  }
+
+  HANDLE mapFile = CreateFileMappingA(file, NULL, PAGE_READONLY, 0, 0, 0);
+  if (mapFile == nullptr) {
+    fprintf(stderr, "Couldn't create file mapping\n");
+    CloseHandle(file);
+    return 1;
+  }
+
+  uint8_t* base = reinterpret_cast<uint8_t*>(MapViewOfFile(mapFile,
+                                                           FILE_MAP_READ,
+                                                           0,
+                                                           0,
+                                                           0));
+  if (base == nullptr) {
+    fprintf(stderr, "Couldn't map file\n");
+    CloseHandle(mapFile);
+    CloseHandle(file);
+    return 1;
+  }
+
+  DWORD size;
+  PIMAGE_DEBUG_DIRECTORY debug_dir =
+    reinterpret_cast<PIMAGE_DEBUG_DIRECTORY>(
+      ImageDirectoryEntryToDataEx(base,
+                                  FALSE,
+                                  IMAGE_DIRECTORY_ENTRY_DEBUG,
+                                  &size,
+                                  nullptr));
+
+  bool found = false;
+  if (debug_dir->Type == IMAGE_DEBUG_TYPE_CODEVIEW) {
+    CV_INFO_PDB70* cv =
+      reinterpret_cast<CV_INFO_PDB70*>(base + debug_dir->PointerToRawData);
+    if (cv->CvSignature == CV_SIGNATURE_RSDS) {
+      found = true;
+      print_guid(cv->Signature, cv->Age);
+    }
+  }
+
+  UnmapViewOfFile(base);
+  CloseHandle(mapFile);
+  CloseHandle(file);
+
+  return found ? 0 : 1;
+}