diff --git a/main.cpp b/main.cpp
index a48b333..1cc959f 100644
--- a/main.cpp
+++ b/main.cpp
@@ -442,9 +442,9 @@ int client_event_loop()
 					mylog(log_warn,"huge packet,data len=%d (>%d).strongly suggested to set a smaller mtu at upper level,to get rid of this warn\n ",data_len,mtu_warn);
 				}
 
-				if(cook_rm_crc32(data,data_len)!=0)
+				if(de_cook(data,data_len)!=0)
 				{
-					mylog(log_debug,"cook_rm_crc32 check error");
+					mylog(log_debug,"de_cook error");
 					continue;
 				}
 
@@ -602,9 +602,9 @@ int server_event_loop()
 				}
 
 
-				if(cook_rm_crc32(data,data_len)!=0)
+				if(de_cook(data,data_len)!=0)
 				{
-					mylog(log_debug,"cook_rm_crc32 check error");
+					mylog(log_debug,"de_cook error");
 					continue;
 				}
 
diff --git a/packet.cpp b/packet.cpp
index 655ab08..bbe10eb 100644
--- a/packet.cpp
+++ b/packet.cpp
@@ -301,7 +301,7 @@ int put_crc32(char * s,int &len)
 	return 0;
 }
 
-int cook_rm_crc32(char * s,int &len)
+int de_cook(char * s,int &len)
 {
 	if(!disable_xor)decrypt_0(s,len,key_string);
 	if(!disable_obscure)
@@ -313,7 +313,13 @@ int cook_rm_crc32(char * s,int &len)
 			return ret;
 		}
 	}
-	return rm_crc32(s,len);
+	int ret=rm_crc32(s,len);
+	if(ret!=0)
+	{
+		mylog(log_debug,"rm_crc32 fail\n");
+		return ret;
+	}
+	return 0;
 }
 int rm_crc32(char * s,int &len)
 {
diff --git a/packet.h b/packet.h
index 4f98d80..e674ad9 100644
--- a/packet.h
+++ b/packet.h
@@ -41,5 +41,5 @@ int put_conv(u32_t conv,const char * input,int len_in,char *&output,int &len_out
 int get_conv(u32_t &conv,const char *input,int len_in,char *&output,int &len_out );
 int put_crc32(char * s,int &len);
 int rm_crc32(char * s,int &len);
-int cook_rm_crc32(char * s,int &len);
+int de_cook(char * s,int &len);
 #endif /* PACKET_H_ */