1 files changed, 78 insertions, 0 deletions
diff --git a/toolkit/mozapps/update/updater/win_dirent.cpp b/toolkit/mozapps/update/updater/win_dirent.cpp
new file mode 100644
index 000000000..b0807ba5e
--- /dev/null
+++ b/toolkit/mozapps/update/updater/win_dirent.cpp
@@ -0,0 +1,78 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 et cindent: */
+/* 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 "win_dirent.h"
+#include <errno.h>
+#include <string.h>
+
+// This file implements the minimum set of dirent APIs used by updater.cpp on
+// Windows.  If updater.cpp is modified to use more of this API, we need to
+// implement those parts here too.
+
+static dirent gDirEnt;
+
+DIR::DIR(const WCHAR* path)
+  : findHandle(INVALID_HANDLE_VALUE)
+{
+  memset(name, 0, sizeof(name));
+  wcsncpy(name, path, sizeof(name)/sizeof(name[0]));
+  wcsncat(name, L"\\*", sizeof(name)/sizeof(name[0]) - wcslen(name) - 1);
+}
+
+DIR::~DIR()
+{
+  if (findHandle != INVALID_HANDLE_VALUE) {
+    FindClose(findHandle);
+  }
+}
+
+dirent::dirent()
+{
+  d_name[0] = L'\0';
+}
+
+DIR*
+opendir(const WCHAR* path)
+{
+  return new DIR(path);
+}
+
+int
+closedir(DIR* dir)
+{
+  delete dir;
+  return 0;
+}
+
+dirent* readdir(DIR* dir)
+{
+  WIN32_FIND_DATAW data;
+  if (dir->findHandle != INVALID_HANDLE_VALUE) {
+    BOOL result = FindNextFileW(dir->findHandle, &data);
+    if (!result) {
+      if (GetLastError() != ERROR_FILE_NOT_FOUND) {
+        errno = ENOENT;
+      }
+      return 0;
+    }
+  } else {
+    // Reading the first directory entry
+    dir->findHandle = FindFirstFileW(dir->name, &data);
+    if (dir->findHandle == INVALID_HANDLE_VALUE) {
+      if (GetLastError() == ERROR_FILE_NOT_FOUND) {
+        errno = ENOENT;
+      } else {
+        errno = EBADF;
+      }
+      return 0;
+    }
+  }
+  memset(gDirEnt.d_name, 0, sizeof(gDirEnt.d_name));
+  wcsncpy(gDirEnt.d_name, data.cFileName,
+           sizeof(gDirEnt.d_name)/sizeof(gDirEnt.d_name[0]));
+  return &gDirEnt;
+}
+