Specify number of serves and hosts, test and sort servers

Joel Grunbaum

2020-10-20 b6574898519ef89d5481ad677347f0630c877561

 Makefile

@@ -1,6 +1,6 @@
CC=gcc
_OBJ=main.o dns.o
_DEPS=dns.h
_OBJ=main.o dns.o slist.o
_DEPS=dns.h servers.h slist.h
IDIR=include
CFLAGS=-I$(IDIR) -Wall -g
ODIR=obj