Added test cases

Makefile

@@ -3,13 +3,18 @@ CLIENT = iodine
 CLIENTOBJS = iodine.o tun.o dns.o read.o encoding.o
 SERVER = iodined
 SERVEROBJS = iodined.o tun.o dns.o read.o encoding.o
+TESTSUITE = tester
+TESTOBJS = test.o dns.o read.o encoding.o
 
 OS = `uname | tr "a-z" "A-Z"`
 
 LDFLAGS =  -lz
 CFLAGS = -c -g -Wall -D$(OS)
 
-all: stateos $(CLIENT) $(SERVER)
+all: stateos $(CLIENT) $(SERVER) $(TESTSUITE) 
+
+test:	$(TESTSUITE)
+	@./$(TESTSUITE)
 
 stateos:
 	@echo OS is $(OS)
@@ -22,6 +27,10 @@ $(SERVER): $(SERVEROBJS)
 	@echo LD $@
 	@$(CC) $(SERVEROBJS) -o $(SERVER) $(LDFLAGS)
 
+$(TESTSUITE): $(TESTOBJS)
+	@echo LD $@
+	@$(CC) $(TESTOBJS) -o $(TESTSUITE) $(LDFLAGS)
+	@echo To run test suite, do \"make test\"
 .c.o: 
 	@echo CC $<
 	@$(CC) $(CFLAGS) $< -o $@