RE: 80MB+ memory consumption by nmap 3.95

["Ganga Bhavani" <GBhavani () everdreamcorp com>]

I've fixed memory leak in tcpip.cc in send_ip_packets. It did reduce the memory consumption to 35M. Please find the 
code snippets. Let me know if you see any problem. 

Thanks,
Ganga

--- tcpip.cc.org        2006-02-01 09:44:36.139692100 -0800
+++ tcpip.cc    2006-02-01 09:47:53.064087700 -0800
@@ -933,7 +933,7 @@
   struct ip *ip = (struct ip *) packet;
   struct tcphdr *tcp = NULL;
   udphdr_bsd *udp;
-  u8 *eth_frame;
+  u8 *eth_frame = NULL;
   eth_t *ethsd;
   bool ethsd_opened = false;
   assert(packet);
@@ -957,6 +957,10 @@
     PacketTrace::trace(PacketTrace::SENT, packet, packetlen);
     if (ethsd_opened)
       eth_close(ethsd);
+       if (eth_frame) {
+               free(eth_frame);
+               eth_frame = NULL;
+       }
     return res;
   }
>  -----Original Message-----
> From:         Ganga Bhavani  
> Sent: Friday, January 27, 2006 6:55 PM
> To:   'nmap-dev () insecure org'
> Subject:      80MB+ memory consumption by nmap 3.95
>
> I've upgraded nmap from 3.75 to 3.95. I'm running nmap on windows 2000 professional with following cmd line params:
> nmap -O -F -oN out.nmap 172.20.10.90/20
>
> Till now it has scanned around 3315 nodes and found 557 nodes. It is still executing. The memory it has consumed till 
> now is 80MB. Is this behavior normal?  We never found such behavior in the 3.75 version of nmap. Can someone please 
> let me know if they have seen similar behavior? Any help in identifying the reason for this memory consumption is 
> appreciated.
>
> Thanks,
> Ganga


_______________________________________________
Sent through the nmap-dev mailing list
http://cgi.insecure.org/mailman/listinfo/nmap-dev