diff --git a/main.cpp b/main.cpp
index 0bf908c..b2c86cb 100755
--- a/main.cpp
+++ b/main.cpp
@@ -22,7 +22,7 @@ int use_tcp_for_detection=1;
 
 extern pcap_t *pcap_handle;
 
-int cap_len;
+extern int pcap_captured_full_len;
 
 int client_on_timer(conn_info_t &conn_info) //for client. called when a timer is ready in epoll
 {
@@ -671,7 +671,7 @@ void async_cb(struct ev_loop *loop, struct ev_async *watcher, int revents)
 
 		log_bare(log_info,"link level header captured:\n");
 		unsigned char *tmp=(unsigned char*)pcap_header_buf;
-		cap_len=len;
+		pcap_captured_full_len=len;
 		for(int i=0;i<pcap_link_header_len;i++)
 		log_bare(log_info,"<%x>",(u32_t)tmp[i]);
 
@@ -1038,13 +1038,9 @@ void sigint_cb(struct ev_loop *l, ev_signal *w, int revents)
 
 int main(int argc, char *argv[])
 {
-int xxxx; int aaaa;
-#define xxxx xxxx + 1;
-#define aaaa bbbb
-#define bbbb aaaa
-xxxx ; aaaa ;
 	assert(sizeof(unsigned short)==2);
 	assert(sizeof(unsigned int)==4);
+	assert(sizeof(unsigned long long)==8);
 
 	init_ws();
 
diff --git a/network.cpp b/network.cpp
index a8a7000..df55e89 100644
--- a/network.cpp
+++ b/network.cpp
@@ -50,6 +50,7 @@ int send_with_pcap=1;
 
 int pcap_header_captured=0;
 int pcap_header_buf[buf_len];
+int pcap_captured_full_len=-1;
 
 pcap_t *pcap_handle;
 int pcap_link_header_len=-1;
@@ -221,14 +222,14 @@ void my_packet_handler(
 		printf("<%x>",int( p[i] ));
 	}
 	printf("\n");*/
-	mylog(log_debug,"received a packet!\n");
+	//mylog(log_debug,"received a packet!\n");
 	assert(packet_header->caplen <= packet_header->len);
 	assert(packet_header->caplen <= max_data_len);
 	//if(packet_header->caplen > max_data_len) return ;
 	if(packet_header->caplen<packet_header->len) return;
 
 	if((int)packet_header->caplen<pcap_link_header_len) return;
-	mylog(log_debug,"and its vaild!\n");
+	//mylog(log_debug,"and its vaild!\n");
 
 	pthread_mutex_lock(&queue_mutex);
 	if(!my_queue.full())
@@ -813,7 +814,6 @@ int find_lower_level_info(u32_t ip,u32_t &dest_ip,string &if_name,string &hw)
 	return 0;
 }*/
 
-extern int cap_len;
 int send_raw_ip(raw_info_t &raw_info,const char * payload,int payloadlen)
 {
 	const packet_info_t &send_info=raw_info.send_info;
@@ -900,6 +900,7 @@ int send_raw_ip(raw_info_t &raw_info,const char * payload,int payloadlen)
     	assert(pcap_link_header_len!=-1);
     	memcpy(send_raw_ip_buf0,pcap_header_buf,pcap_link_header_len);
     	assert(pcap_sendpacket(pcap_handle,(const unsigned char *)send_raw_ip_buf0,ip_tot_len+pcap_link_header_len)==0);
+	/*
 	unsigned char *p=(unsigned char *)send_raw_ip_buf0;
 	for(int i=0;i<ip_tot_len+pcap_link_header_len;i++)
 		printf("<%02x>",int(p[i]));
@@ -910,7 +911,7 @@ int send_raw_ip(raw_info_t &raw_info,const char * payload,int payloadlen)
 		printf("<%02x>",int(p[i]));
 	printf("\n");
 
-	printf("pcap send!\n");
+	printf("pcap send!\n");*/
     }
 
 
diff --git a/network.h b/network.h
index af25750..61c2813 100644
--- a/network.h
+++ b/network.h
@@ -58,11 +58,11 @@ struct icmphdr
 struct my_iphdr
   {
 #ifdef UDP2RAW_LITTLE_ENDIAN
-    unsigned int ihl:4;
-    unsigned int version:4;
+    unsigned char ihl:4;
+    unsigned char version:4;
 #else
-    unsigned int version:4;
-    unsigned int ihl:4;
+    unsigned char version:4;
+    unsigned char ihl:4;
 #endif
     u_int8_t tos;
     u_int16_t tot_len;