Linux: add support for tm_zone to localtime via the sandbox.

chrome/browser/renderer_host/render_sandbox_host_linux.cc

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/renderer_host/render_sandbox_host_linux.h"
 
 #include <stdint.h>
 #include <unistd.h>
 #include <sys/uio.h>
 #include <sys/socket.h>
@@ skipping 278 matching lines @@
     // The other side of this call is in zygote_main_linux.cc
 
     std::string time_string;
     if (!pickle.ReadString(&iter, &time_string) ||
         time_string.size() != sizeof(time_t)) {
       return;
     }
 
     time_t time;
     memcpy(&time, time_string.data(), sizeof(time));
-    struct tm expanded_time;
-    localtime_r(&time, &expanded_time);
+    // We use localtime here because we need the tm_zone field to be filled
+    // out. Since we are a single-threaded process, this is safe.
+    const struct tm* expanded_time = localtime(&time);
 
-    const std::string result_string(reinterpret_cast<char*>(&expanded_time),
-                                    sizeof(expanded_time));
+    const std::string result_string(reinterpret_cast<const char*>(expanded_time),

[tony, 2009/07/22 20:01:41]

Nit: 80 cols.

+                                    sizeof(struct tm));
 
     Pickle reply;
     reply.WriteString(result_string);
+    reply.WriteString(expanded_time->tm_zone);
     SendRendererReply(fds, reply, -1);
   }
 
   void SendRendererReply(const std::vector<int>& fds, const Pickle& reply,
                          int reply_fd) {
     struct msghdr msg;
     memset(&msg, 0, sizeof(msg));
     struct iovec iov = {const_cast<void*>(reply.data()), reply.size()};
     msg.msg_iov = &iov;
     msg.msg_iovlen = 1;
@@ skipping 43 matching lines @@
     SandboxIPCProcess handler(child_lifeline_fd, browser_socket);
     handler.Run();
     _exit(0);
   }
 }
 
 RenderSandboxHostLinux::~RenderSandboxHostLinux() {
   HANDLE_EINTR(close(renderer_socket_));
   HANDLE_EINTR(close(childs_lifeline_fd_));
 }