FIX: warning: implicit declaration of function ‘close’

Author: Oldes

src/include/sys-net.h

@@ -57,6 +57,7 @@ typedef long __LONG;
 #include <netdb.h>
 #include <sys/socket.h>
 #include <netinet/in.h>
+#include <unistd.h>
 
 #define GET_ERROR		errno
 #define IOCTL			ioctl