[svn] - fix a possible problem with ipv6

ChangeLog

@@ -1,3 +1,14 @@
+nenolod     2007/07/06 07:48:28 UTC	(20070706-3522)
+  Log:
+  - new ip cloaking module
+  
+
+  Changes:	Modified:
+  +1 -0		trunk/extensions/Makefile.in (File Modified) 
+  +246 -33	trunk/extensions/ip_cloaking.c (File Modified) 
+  + -		trunk/extensions/ip_cloaking_old.c (File Added) 
+
+
 jilles      2007/06/30 22:15:35 UTC	(20070630-3520)
   Log:
   monitor: send the same message buffer to all users

extensions/ip_cloaking.c

@@ -1,4 +1,4 @@
-/* $Id: ip_cloaking.c 3522 2007-07-06 07:48:28Z nenolod $ */
+/* $Id: ip_cloaking.c 3524 2007-07-06 07:54:54Z nenolod $ */
 
 #include "stdinc.h"
 #include "modules.h"
@@ -42,7 +42,7 @@ mapi_hfn_list_av1 ip_cloaking_hfnlist[] = {
 };
 
 DECLARE_MODULE_AV1(ip_cloaking, _modinit, _moddeinit, NULL, NULL,
-			ip_cloaking_hfnlist, "$Revision: 3522 $");
+			ip_cloaking_hfnlist, "$Revision: 3524 $");
 
 static void
 distribute_hostchange(struct Client *client)
@@ -107,6 +107,10 @@ do_host_cloak_ip(const char *inbuf, char *outbuf)
 
 	strncpy(buf, inbuf, HOSTLEN);
 	tptr = strrchr(buf, '.');
+
+	if (tptr == NULL)
+		return;
+
 	*tptr++ = '\0';
 
 	snprintf(outbuf, HOSTLEN, "%s.%x", buf, accum);

include/serno.h

@@ -1 +1 @@
-#define SERNO "20070630-3520"
+#define SERNO "20070706-3522"