--- file_not_specified_in_diff	
+++ file_not_specified_in_diff	
@@ -, +, @@ 
--- 0verkill-0.16/net.c
+++ 0verkill-0.16/net.c
@@ -84,6 +84,7 @@ 
 	p=mem_alloc(max_len+12);
 	if (!p)return -1;  /* not enough memory */
 	retval=recvfrom(fd,p,max_len+12,0,addr,addr_len);
+	if (retval<12)return -1; /* not enough data from network */
 	memcpy(packet,p+12,max_len);
 	crc=p[0]+(p[1]<<8)+(p[2]<<16)+(p[3]<<24);
 	s=p[4]+(p[5]<<8)+(p[6]<<16)+(p[7]<<24);