add some notes and basic code

include/colors.h

@@ -0,0 +1,11 @@
+#ifndef __COLORS_H__
+#define __COLORS_H__
+
+#define RED "\033[31m"
+#define GREEN "\033[32m"
+#define YELLOW "\033[33m"
+#define BLUE "\033[34m"
+#define BOLD "\033[1m"
+#define RESET "\033[0m"
+
+#endif

include/main.h

@@ -1,7 +1,6 @@
 #ifndef __MAIN_H__
 #define __MAIN_H__
 
-#define GREEN_COLOR "\033[32m"
-#define RESET_COLOR "\033[0m"
+#include <stdio.h>
 
 #endif

include/server.h

@@ -1,13 +1,20 @@
 #ifndef __SERVER_H__
 #define __SERVER_H__
 
-#include <string.h>
-#include <sys/types.h>
-#include <sys/socket.h>
+#include <arpa/inet.h>
 #include <netdb.h>
+#include <netinet/in.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 
 #define PORT 3030
 // how many pending connections the queue will hold
 #define BACKLOG 10
 
+int start_server(void);
+
 #endif

include/utils.h

@@ -0,0 +1,17 @@
+#ifndef __UTILS_H__
+#define __UTILS_H__
+
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <netinet/in.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+// Print every IPs of a hostname
+void print_ips(const char *hostname, const char *port);
+
+#endif