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-rw-r--r--toolkit/system/windowsDHCPClient/nsWindowsDHCPClient.cpp77
1 files changed, 77 insertions, 0 deletions
diff --git a/toolkit/system/windowsDHCPClient/nsWindowsDHCPClient.cpp b/toolkit/system/windowsDHCPClient/nsWindowsDHCPClient.cpp
new file mode 100644
index 0000000000..9ddb3bb994
--- /dev/null
+++ b/toolkit/system/windowsDHCPClient/nsWindowsDHCPClient.cpp
@@ -0,0 +1,77 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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 "nsWindowsDHCPClient.h"
+
+#include <vector>
+
+#include "DHCPUtils.h"
+#include "nsNetCID.h"
+#include "nsString.h"
+#include "mozilla/Logging.h"
+#include "mozilla/Components.h"
+
+namespace mozilla {
+namespace toolkit {
+namespace system {
+namespace windowsDHCPClient {
+
+LazyLogModule gDhcpLog("windowsDHCPClient");
+
+#undef LOG
+#define LOG(args) MOZ_LOG(gDhcpLog, LogLevel::Debug, args)
+
+#define MOZ_MAX_DHCP_OPTION_LENGTH \
+ 255 // this is the maximum option length in DHCP V4 and 6
+
+NS_IMPL_ISUPPORTS(nsWindowsDHCPClient, nsIDHCPClient)
+
+NS_IMETHODIMP
+nsWindowsDHCPClient::GetOption(uint8_t aOption, nsACString& aRetVal) {
+ nsCString networkAdapterName;
+ nsresult rv;
+ rv = GetActiveDHCPNetworkAdapterName(networkAdapterName, mNetworkFunctions);
+ if (rv != NS_OK) {
+ LOG(
+ ("Failed to get network adapter name in nsWindowsDHCPClient::GetOption "
+ "due to error %d",
+ rv));
+ return rv;
+ }
+
+ uint32_t sizeOptionValue = MOZ_MAX_DHCP_OPTION_LENGTH;
+ std::vector<char> optionValue;
+
+ bool retryingAfterLossOfSignificantData = false;
+ do {
+ optionValue.resize(sizeOptionValue);
+ rv = RetrieveOption(networkAdapterName, aOption, optionValue,
+ &sizeOptionValue, mNetworkFunctions);
+ if (rv == NS_ERROR_LOSS_OF_SIGNIFICANT_DATA) {
+ LOG((
+ "In nsWindowsDHCPClient::GetOption, DHCP Option %d required %d bytes",
+ aOption, sizeOptionValue));
+ if (retryingAfterLossOfSignificantData) {
+ break;
+ }
+ retryingAfterLossOfSignificantData = true;
+ }
+ } while (rv == NS_ERROR_LOSS_OF_SIGNIFICANT_DATA);
+ if (rv != NS_OK) {
+ LOG(
+ ("Failed to get DHCP Option %d nsWindowsDHCPClient::GetOption due to "
+ "error %d",
+ aOption, rv));
+ return rv;
+ }
+ aRetVal.Assign(optionValue.data(), sizeOptionValue);
+ return NS_OK;
+}
+
+} // namespace windowsDHCPClient
+} // namespace system
+} // namespace toolkit
+} // namespace mozilla