---------------------
PatchSet 10262 
Date: 2007/12/16 17:39:22
Author: serassio
Branch: nt
Tag: (none) 
Log:
Handle notification of IP address changes for dial-up connections

Members: 
	src/win32.c:1.7.8.19->1.7.8.20 

Index: squid/src/win32.c
===================================================================
RCS file: /cvsroot/squid-sf//squid/src/win32.c,v
retrieving revision 1.7.8.19
retrieving revision 1.7.8.20
diff -u -r1.7.8.19 -r1.7.8.20
--- squid/src/win32.c	13 Aug 2007 08:03:08 -0000	1.7.8.19
+++ squid/src/win32.c	16 Dec 2007 17:39:22 -0000	1.7.8.20
@@ -91,6 +91,9 @@
 #else
 #define CHANGESERVICECONFIG2 "ChangeServiceConfig2A"
 #endif
+#undef NotifyAddrChange
+typedef DWORD(WINAPI * PFNotifyAddrChange)(OUT PHANDLE, IN LPOVERLAPPED);
+#define NOTIFYADDRCHANGE "NotifyAddrChange"
 #if USE_WIN32_SERVICE
 static SC_ACTION Squid_SCAction[] =
 {
@@ -380,6 +383,42 @@
     _exit(0);
 }
 
+void WIN32_IpAddrChangeMonitor()
+{
+    DWORD Result;
+    HMODULE IPHLPAPIHandle;
+    PFNotifyAddrChange NotifyAddrChange;
+
+    IPHLPAPIHandle = GetModuleHandle("IPHLPAPI");
+    NotifyAddrChange = (PFNotifyAddrChange) GetProcAddress(IPHLPAPIHandle, NOTIFYADDRCHANGE);
+
+    while ( TRUE ) {
+        Result = NotifyAddrChange(NULL,NULL);
+        if (Result != NO_ERROR)
+        {        
+	     debug(1, 1) ("NotifyAddrChange error %ld\n", Result);
+             break;
+        }
+	debug(1, 1) ("Notification of IP address change received, reconfiguring Squid ...\n");
+	reconfigure(SIGHUP);
+    }
+}
+
+DWORD WIN32_IpAddrChangeMonitorInit()
+{
+    DWORD status = ERROR_SUCCESS;
+    HANDLE thread;
+    ULONG  threadID = 0;
+
+    thread = CreateThread(NULL, 0, (PTHREAD_START_ROUTINE)WIN32_IpAddrChangeMonitor,
+                                    NULL, 0, &threadID);
+    if (thread == NULL) {
+        status = GetLastError();
+    }
+    CloseHandle(thread);
+    return status;
+}
+
 int
 WIN32_Subsystem_Init(int *argc, char ***argv)
 {
@@ -456,6 +495,10 @@
 #ifdef _SQUID_MSWIN_
     if (Win32SockInit() < 0)
 	return 1;
+    if (WIN32_OS_version > _WIN_OS_WINNT) {
+        if (WIN32_IpAddrChangeMonitorInit() != ERROR_SUCCESS)
+	    return 1;
+    }
 #endif
     return 0;
 }