rem: void rip_init(void)
add: static void rip_init(void)
context: void rip_init(void){	rawinpcb.inp_next = rawinpcb.inp_prev = &rawinpcb;	memset(&ripsrc, 0, sizeof(ripsrc));	ripsrc.sin_family = AF_INET;	ripsrc.sin_len = sizeof(ripsrc);}