X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=Modules%2FIPStack%2Farp.c;h=35532f6f5fc2bfb0f7dc2c49370dc4316feea1d4;hb=7758e1bf2e2a1ad35def1eb8cf9aab55d13e05a0;hp=476557e6f14cacd150793e2357b7507be20d68a0;hpb=41769c02317835472d7678d3531ecfc23df8e17a;p=tpg%2Facess2.git

diff --git a/Modules/IPStack/arp.c b/Modules/IPStack/arp.c
index 476557e6..35532f6f 100644
--- a/Modules/IPStack/arp.c
+++ b/Modules/IPStack/arp.c
@@ -73,6 +73,7 @@ tMacAddr ARP_Resolve4(tInterface *Interface, tIPv4 Address)
 	 int	lastID;
 	 int	i;
 	struct sArpRequest4	req;
+	Sint64	timeout;
 	
 	ENTER("pInterface xAddress", Interface, Address);
 	
@@ -129,10 +130,16 @@ tMacAddr ARP_Resolve4(tInterface *Interface, tIPv4 Address)
 	// Send Request
 	Link_SendPacket(Interface->Adapter, 0x0806, req.DestMac, sizeof(struct sArpRequest4), &req);
 	
+	timeout = now() + Interface->TimeoutDelay;
+	
 	// Wait for a reply
 	for(;;)
 	{
-		while(lastID == giARP_LastUpdateID)	Threads_Yield();
+		while(lastID == giARP_LastUpdateID && now() < timeout)
+			Threads_Yield();
+		
+		if( now() >= timeout )	break;	// Timeout
+		
 		lastID = giARP_LastUpdateID;
 		
 		Mutex_Acquire( &glARP_Cache4 );
@@ -145,6 +152,10 @@ tMacAddr ARP_Resolve4(tInterface *Interface, tIPv4 Address)
 		}
 		Mutex_Release( &glARP_Cache4 );
 	}
+	{
+		tMacAddr	ret = {{0,0,0,0,0,0}};
+		return ret;
+	}
 }
 
 /**