1 files changed, 159 insertions, 0 deletions
diff --git a/third_party/protobuf/3.0.0/src/google/protobuf/io/io_win32.cc b/third_party/protobuf/3.0.0/src/google/protobuf/io/io_win32.cc
new file mode 100644
index 0000000000..d30bcf0bfe
--- /dev/null
+++ b/third_party/protobuf/3.0.0/src/google/protobuf/io/io_win32.cc
@@ -0,0 +1,159 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc.  All rights reserved.
+// https://developers.google.com/protocol-buffers/
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Author: laszlocsomor@google.com (Laszlo Csomor)
+//
+// Implementation for long-path-aware open/mkdir/access on Windows.
+//
+// These functions convert the input path to an absolute Windows path
+// with UNC prefix if necessary, then pass that to
+// _wopen/_wmkdir/_waccess (declared in <io.h>) respectively. This
+// allows working with files/directories whose paths is longer than
+// MAX_PATH (260 chars).
+//
+// This file is only used on Windows, it's empty on other platforms.
+
+#if defined(_WIN32)
+
+#include <Windows.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <io.h>
+
+#include <string>
+#include <memory>
+
+#include <google/protobuf/io/io_win32.h>
+
+namespace google {
+namespace protobuf {
+namespace io {
+namespace win32 {
+
+template <typename char_type>
+static bool has_unc_prefix(const std::basic_string<char_type>& path) {
+  return path.size() > 4 && path[0] == '\\' && path[1] == '\\' &&
+         path[2] == '?' && path[3] == '\\';
+}
+
+template <typename char_type>
+static bool is_path_absolute(const std::basic_string<char_type>& path) {
+  return (path.size() > 2 && path[1] == ':') || has_unc_prefix(path);
+}
+
+template <typename char_type>
+static bool is_separator(char_type c) {
+  return c == '/' || c == '\\';
+}
+
+static void replace_directory_separators(WCHAR* p) {
+  for (; *p != L'\0'; ++p) {
+    if (*p == L'/') {
+      *p = L'\\';
+    }
+  }
+}
+
+static std::wstring get_cwd() {
+  DWORD result = ::GetCurrentDirectoryW(0, NULL);
+  std::unique_ptr<WCHAR[]> cwd(new WCHAR[result]);
+  ::GetCurrentDirectoryW(result, cwd.get());
+  cwd.get()[result - 1] = 0;
+  replace_directory_separators(cwd.get());
+  return std::move(std::wstring(cwd.get()));
+}
+
+static std::wstring join_paths(const std::wstring& path1, 
+                               const std::wstring& path2) {
+  if (path1.empty() || is_path_absolute(path2)) {
+    return path2;
+  }
+  if (path2.empty()) {
+    return path1;
+  }
+
+  if (is_separator(path1.back())) {
+    return is_separator(path2.front())
+        ? (path1 + path2.substr(1))
+        : (path1 + path2);
+  } else {
+    return is_separator(path2.front())
+        ? (path1 + path2)
+        : (path1 + L'\\' + path2);
+  }
+}
+
+static std::wstring as_wchar_path(const std::string& path) {
+  int len = ::MultiByteToWideChar(CP_UTF8, 0, path.c_str(), path.size(),
+                                  NULL, 0);
+  std::unique_ptr<WCHAR[]> wbuf(new WCHAR[len + 1]);
+  ::MultiByteToWideChar(CP_UTF8, 0, path.c_str(), path.size(),
+                        wbuf.get(), len + 1);
+  wbuf.get()[len] = 0;
+  replace_directory_separators(wbuf.get());
+  return std::move(std::wstring(wbuf.get()));
+}
+
+static std::wstring as_windows_path(const std::string& path,
+                                    size_t max_path) {
+  std::wstring wpath(as_wchar_path(path));
+  if (!is_path_absolute(path)) {
+    wpath = join_paths(get_cwd(), wpath);
+  }
+  if (wpath.size() >= max_path && !has_unc_prefix(wpath)) {
+    wpath = std::wstring(L"\\\\?\\") + wpath;
+  }
+  return wpath;
+}
+
+int open(const char* path, int flags, int mode) {
+  return ::_wopen(as_windows_path(path, MAX_PATH).c_str(), flags, mode);
+}
+
+int mkdir(const char* name, int _mode) {
+  // CreateDirectoryA's limit is 248 chars, see MSDN.
+  // https://msdn.microsoft.com/en-us/library/windows/desktop/aa363855(v=vs.85).aspx
+  // This limit presumably includes the null-terminator, because other
+  // functions that have the MAX_PATH limit, such as CreateFileA,
+  // actually include it.
+  return ::_wmkdir(as_windows_path(name, 248).c_str());
+}
+
+int access(const char* pathname, int mode) {
+  return ::_waccess(as_windows_path(pathname, MAX_PATH).c_str(), mode);
+}
+
+}  // namespace win32
+}  // namespace io
+}  // namespace protobuf
+}  // namespace google
+
+#endif  // defined(_WIN32)