Missed new files in last commit

src/platform/update_engine/omaha_request_prep_action.cc

Index: src/platform/update_engine/omaha_request_prep_action.cc
diff --git a/src/platform/update_engine/omaha_request_prep_action.cc b/src/platform/update_engine/omaha_request_prep_action.cc
new file mode 100644
index 0000000000000000000000000000000000000000..21d579954d55c78acf263d886793e1c20920392d
--- /dev/null
+++ b/src/platform/update_engine/omaha_request_prep_action.cc
@@ -0,0 +1,93 @@
+// 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 "update_engine/omaha_request_prep_action.h"
+#include <sys/utsname.h>
+#include <string>
+#include "update_engine/utils.h"
+
+using std::string;
+
+// This gathers local system information and prepares info used by the
+// update check action.
+
+namespace chromeos_update_engine {
+
+void OmahaRequestPrepAction::PerformAction() {
+  // TODO(adlr): honor force_full_update_
+  const string machine_id(GetMachineId());
+  const string version(GetLsbValue("GOOGLE_RELEASE"));
+  const string sp(version + "_" + GetMachineType());
+  const string track(GetLsbValue("GOOGLE_TRACK"));
+
+  UpdateCheckParams out(machine_id,  // machine_id
+                        machine_id,  // user_id (use machine_id)
+                        UpdateCheckParams::kOsPlatform,
+                        UpdateCheckParams::kOsVersion,
+                        sp,  // e.g. 0.2.3.3_i686
+                        UpdateCheckParams::kAppId,
+                        version,  // app version (from lsb-release)
+                        "en-US",  //lang
+                        track);  // track
+
+  CHECK(HasOutputPipe());
+  SetOutputObject(out);
+  processor_->ActionComplete(this, true);
+}
+
+std::string OmahaRequestPrepAction::GetMachineId() const {
+  FILE* fp = popen("/sbin/ifconfig", "r");
+  if (!fp)
+    return "";
+  string data;
+  for (;;) {
+    char buffer[1000];
+    size_t r = fread(buffer, 1, sizeof(buffer), fp);
+    if (r <= 0)
+      break;
+    data.insert(data.end(), buffer, buffer + r);
+  }
+  fclose(fp);
+  // scan data for MAC address
+  string::size_type pos = data.find(" HWaddr ");
+  if (pos == string::npos)
+    return "";
+  // 3 * 6 - 1 is the number of bytes of the hwaddr.
+  return data.substr(pos + strlen(" HWaddr "), 3 * 6 - 1);
+}
+
+std::string OmahaRequestPrepAction::GetLsbValue(const std::string& key) const {
+  string files[] = {utils::kStatefulPartition + "/etc/lsb-release",
+                    "/etc/lsb-release"};
+  for (unsigned int i = 0; i < arraysize(files); i++) {
+    string file_data;
+    if (!utils::ReadFileToString(root_ + files[i], &file_data))
+      continue;
+    string::size_type pos = 0;
+    if (!utils::StringHasPrefix(file_data, key + "=")) {
+      pos = file_data.find(string("\n") + key + "=");
+      if (pos != string::npos)
+        pos++;  // advance past \n
+    }
+    if (pos == string::npos)
+      continue;
+    pos += key.size() + 1;  // advance past the key and the '='
+    string::size_type endpos = file_data.find('\n', pos);
+    string::size_type length =
+        (endpos == string::npos ? string::npos : endpos - pos);
+    return file_data.substr(pos, length);
+  }
+  // not found
+  return "";
+}
+
+std::string OmahaRequestPrepAction::GetMachineType() const {
+  struct utsname buf;
+  string ret;
+  if (uname(&buf) == 0)
+    ret = buf.machine;
+  return ret;
+}
+
+}  // namespace chromeos_update_engine