From 05b93debf2a20e19c4f10666a33eeafaa999db82 Mon Sep 17 00:00:00 2001
From: hater <7element@mail.bg>
Date: Wed, 11 Nov 2015 17:25:57 +0200
Subject: [PATCH] Write DHCP domain info in tcp parameters and interface
 registry keys on successful lease

---
 reactos/dll/win32/dhcpcsvc/dhcp/dhclient.c | 32 ++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/reactos/dll/win32/dhcpcsvc/dhcp/dhclient.c b/reactos/dll/win32/dhcpcsvc/dhcp/dhclient.c
index c962074..2ed5985 100644
--- a/reactos/dll/win32/dhcpcsvc/dhcp/dhclient.c
+++ b/reactos/dll/win32/dhcpcsvc/dhcp/dhclient.c
@@ -447,6 +447,37 @@ void set_name_servers( PDHCP_ADAPTER Adapter, struct client_lease *new_lease ) {
 
 }
 
+void set_domain( PDHCP_ADAPTER Adapter, struct client_lease *new_lease ) {
+    CHAR Buffer1[MAX_PATH] = "SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters\\Interfaces\\";
+    CHAR Buffer2[MAX_PATH] = "SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters";
+    HKEY RegKey1, RegKey2;
+
+    strcat(Buffer1, Adapter->DhclientInfo.name);
+    if (RegOpenKeyExA(HKEY_LOCAL_MACHINE, Buffer1, 0, KEY_WRITE, &RegKey1 ) != ERROR_SUCCESS)
+        return;
+    if (RegOpenKeyExA(HKEY_LOCAL_MACHINE, Buffer2, 0, KEY_WRITE, &RegKey2 ) != ERROR_SUCCESS) {
+        RegCloseKey( RegKey1 );
+        return;
+    }
+
+
+    if( new_lease->options[DHO_DOMAIN_NAME].len ) {
+        DH_DbgPrint(MID_TRACE,("Setting DhcpDomain: %s\n", new_lease->options[DHO_DOMAIN_NAME].data));
+
+        RegSetValueExA( RegKey1, "DhcpDomain", 0, REG_SZ,
+                        (LPBYTE)new_lease->options[DHO_DOMAIN_NAME].data, new_lease->options[DHO_DOMAIN_NAME].len );
+        RegSetValueExA( RegKey2, "DhcpDomain", 0, REG_SZ,
+                        (LPBYTE)new_lease->options[DHO_DOMAIN_NAME].data, new_lease->options[DHO_DOMAIN_NAME].len );
+    } else {
+        RegDeleteValueW( RegKey1, L"DhcpDomain" );
+        RegDeleteValueW( RegKey2, L"DhcpDomain" );
+    }
+
+    RegCloseKey( RegKey1 );
+    RegCloseKey( RegKey2 );
+
+}
+
 void setup_adapter( PDHCP_ADAPTER Adapter, struct client_lease *new_lease ) {
     CHAR Buffer[200] = "SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters\\Interfaces\\";
     struct iaddr netmask;
@@ -569,6 +600,7 @@ bind_lease(struct interface_info *ip)
         return;
     }
     set_name_servers( Adapter, new_lease );
+    set_domain( Adapter, new_lease );
 }
 
 /*
-- 
1.9.5.msysgit.0