--- /dev/null
+/* ivac.h -- main ivac header file */
+
+#ifndef IVAC_H
+#define IVAC_H
+
+/* includes */
+#define _GNU_SOURCE
+#include <stdio.h>
+
+/* defines */
+#define CHAR_USERNAME 32
+
+/* variables */
+
+typedef s_ivac {
+ char username[CHAR_USERNAME];
+ t_net net;
+
+} t_ivac;
+
+#endif