added command line options,fixed segment fault

fec_manager.cpp

@@ -236,7 +236,7 @@ int fec_encode_manager_t::input(char *s,int len/*,int &is_first_packet*/)
 
     if(about_to_fec)
 	{
-    	char ** blob_output;
+    	char ** blob_output=0;
     	int fec_len=-1;
     	mylog(log_trace,"counter=%d\n",counter);
 
@@ -270,7 +270,7 @@ int fec_encode_manager_t::input(char *s,int len/*,int &is_first_packet*/)
     			}
     			actual_data_num=best_data_num;
     			actual_redundant_num=fec_redundant_num;
-    			mylog(log_info,"actual_data_num=%d actual_redundant_num=%d\n",best_data_num,fec_redundant_num);
+    			mylog(log_trace,"actual_data_num=%d actual_redundant_num=%d\n",best_data_num,fec_redundant_num);
     		}
 
         	assert(blob_encode.output(actual_data_num,blob_output,fec_len)==0);
@@ -488,6 +488,7 @@ int fec_decode_manager_t::input(char *s,int len)
 	len=len-tmp_idx;
 
 	mylog(log_trace,"input\n");
+	assert(len+100<buf_len);
 	if(len<0)
 	{
 		mylog(log_warn,"len<0\n");
@@ -591,6 +592,8 @@ int fec_decode_manager_t::input(char *s,int len)
 	fec_data[index].redundant_num=redundant_num;
 	fec_data[index].idx=inner_index;
 	fec_data[index].len=len;
+	assert(0<=index&&index<(int)fec_buff_num);
+	assert(len+100<buf_len);
 	memcpy(fec_data[index].buf,s+tmp_idx,len);
 	mp[seq].group_mp[inner_index]=index;
 	//index++ at end of function
@@ -774,7 +777,7 @@ int fec_decode_manager_t::input(char *s,int len)
 
 	end:
 	index++;
-	if(index==int(anti_replay_buff_size)) index=0;
+	if(index==int(fec_buff_num)) index=0;
 
 	return 0;
 }

fec_manager.h

@@ -152,7 +152,7 @@ struct fec_group_t
 class fec_decode_manager_t
 {
 	anti_replay_t anti_replay;
-	fec_data_t fec_data[fec_buff_num];
+	fec_data_t fec_data[fec_buff_num+10];
 	int index;
 	unordered_map<u32_t, fec_group_t> mp;
 	blob_decode_t blob_decode;

main.cpp

@@ -32,10 +32,10 @@ int disable_fec=0;
 
 int debug_force_flush_fec=0;
 
-int fec_data_num=160;
+int fec_data_num=20;
-int fec_redundant_num=80;
+int fec_redundant_num=10;
 int fec_mtu=1250;
-int fec_pending_num=50;
+int fec_pending_num=200;
 int fec_pending_time=10000; //10ms
 int fec_type=0;
 
@@ -1193,15 +1193,12 @@ void process_arg(int argc, char *argv[])
 	}
 
 	int no_l = 1, no_r = 1;
-	while ((opt = getopt_long(argc, argv, "l:r:d:t:hcspk:j:m:",long_options,&option_index)) != -1)
+	while ((opt = getopt_long(argc, argv, "l:r:d:t:hcsk:j:m:f:p:n:",long_options,&option_index)) != -1)
 	{
 		//string opt_key;
 		//opt_key+=opt;
 		switch (opt)
 		{
-		case 'p':
-			//multi_process_mode=1;
-			break;
 		case 'k':
 			sscanf(optarg,"%s\n",key_string);
 			mylog(log_debug,"key=%s\n",key_string);
@@ -1211,7 +1208,7 @@ void process_arg(int argc, char *argv[])
 				myexit(-1);
 			}
 			break;
-
+/*
 		case 'm':
 			sscanf(optarg,"%d\n",&max_pending_packet);
 			if(max_pending_packet<1000)
@@ -1220,7 +1217,7 @@ void process_arg(int argc, char *argv[])
 				myexit(-1);
 			}
 			break;
-
+*/
 		case 'j':
 			if (strchr(optarg, ':') == 0)
 			{
@@ -1244,31 +1241,59 @@ void process_arg(int argc, char *argv[])
 				}
 			}
 			break;
-		case 't':
+		case 'f':
-
-			sscanf(optarg,"%d",&fec_type);
-			/*
 			if (strchr(optarg, ':') == 0)
 			{
-				int dup_delay=-1;
+				mylog(log_fatal,"invalid format for f");
-				sscanf(optarg,"%d\n",&dup_delay);
-				if(dup_delay<1||dup_delay>1000*100)
-				{
-					mylog(log_fatal,"dup_delay must be between 1 and 100,000(10 second)\n");
 				myexit(-1);
 			}
-				dup_delay_min=dup_delay_max=dup_delay;
-			}
 			else
 			{
-				sscanf(optarg,"%d:%d\n",&dup_delay_min,&dup_delay_max);
+				sscanf(optarg,"%d:%d\n",&fec_data_num,&fec_redundant_num);
-				if(dup_delay_min<1 ||dup_delay_max<1||dup_delay_min>dup_delay_max)
+				if(fec_data_num<1 ||fec_redundant_num<0||fec_data_num+fec_redundant_num>255)
 				{
-					mylog(log_fatal," must satisfy  1<=dmin<=dmax\n");
+					mylog(log_fatal,"fec_data_num<1 ||fec_redundant_num<0||fec_data_num+fec_redundant_num>255\n");
 					myexit(-1);
 				}
-			}*/
+			}
 			break;
+		case 't':
+			sscanf(optarg,"%d",&fec_type);
+			if(fec_type!=0&&fec_type!=1)
+			{
+				mylog(log_fatal,"mode should be 0 or 1\n");
+				myexit(-1);
+			}
+			break;
+		case 'm':
+			sscanf(optarg,"%d",&fec_mtu);
+			if(fec_mtu<500||fec_mtu>1600)
+			{
+				mylog(log_fatal,"fec_mtu should be between 500 and 1600\n");
+				myexit(-1);
+			}
+			break;
+		case 'p':
+			sscanf(optarg,"%d",&fec_pending_time);
+			if(fec_pending_time<0||fec_pending_time>10000)
+			{
+
+					mylog(log_fatal,"fec_pending_time should be between 0 and 10000\n");
+					myexit(-1);
+			}
+			fec_pending_time*=100;
+			break;
+
+		case 'n':
+			sscanf(optarg,"%d",&fec_pending_num);
+			if(fec_pending_num<1||fec_pending_num>1000)
+			{
+
+					mylog(log_fatal,"fec_pending_num should be between 1 and 1000\n");
+					myexit(-1);
+			}
+			break;
+			/*
 		case 'd':
 			dup_num=-1;
 			sscanf(optarg,"%d\n",&dup_num);
@@ -1278,7 +1303,7 @@ void process_arg(int argc, char *argv[])
 				myexit(-1);
 			}
 			dup_num+=1;
-			break;
+			break;*/
 		case 'c':
 			is_client = 1;
 			break;

makefile

@@ -28,16 +28,24 @@ debug2: git_version
 mips24kc_be: git_version
 	${cc_mips24kc_be}  -o ${NAME}_$@   -I. ${SOURCES} ${FLAGS} -lrt -lgcc_eh -static -O3
 
+mips24kc_be_debug: git_version
+	${cc_mips24kc_be}  -o ${NAME}_$@   -I. ${SOURCES} ${FLAGS} -lrt -lgcc_eh -static -ggdb
+
 mips24kc_le: git_version
 	${cc_mips24kc_le}  -o ${NAME}_$@   -I. ${SOURCES} ${FLAGS} -lrt -lgcc_eh -static -O3
 
 amd64:git_version
 	${cc_local}   -o ${NAME}_$@    -I. ${SOURCES} ${FLAGS} -lrt -static -O3
+amd64_debug:git_version
+	${cc_local}   -o ${NAME}_$@    -I. ${SOURCES} ${FLAGS} -lrt -static -ggdb
 x86:git_version
 	${cc_local}   -o ${NAME}_$@      -I. ${SOURCES} ${FLAGS} -lrt -static -O3 -m32
 arm:git_version
 	${cc_arm}   -o ${NAME}_$@      -I. ${SOURCES} ${FLAGS} -lrt -static -O3
 
+arm_debug:git_version
+	${cc_arm}   -o ${NAME}_$@      -I. ${SOURCES} ${FLAGS} -lrt -static -ggdb
+
 cross:git_version
 	${cc_cross}   -o ${NAME}_cross    -I. ${SOURCES} ${FLAGS} -lrt -O3
 

packet.cpp

@@ -25,7 +25,7 @@ int disable_xor=0;
 
 int random_drop=0;
 
-char key_string[1000]= "secret key";
+char key_string[1000]= "";
 
 int local_listen_fd=-1;
 
@@ -43,7 +43,6 @@ void encrypt_0(char * input,int &len,char *key)
 
 void decrypt_0(char * input,int &len,char *key)
 {
-
 	int i,j;
 	if(key[0]==0) return;
 	for(i=0,j=0;i<len;i++,j++)