Алгоритми маршрутизації в мережах

}

}

}

}

/* get a rip socket

*/

static int/* <0 or file descriptor */

get_rip_sock(naddr addr,

int serious)/* 1=failure to bind is serious */

{

struct sockaddr_in sin;

unsigned char ttl;

int s;

if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0)

BADERR(1,"rip_sock = socket()");

bzero(&sin,sizeof(sin));

#ifdef _HAVE_SIN_LEN

sin.sin_len = sizeof(sin);

#endif

sin.sin_family = AF_INET;

sin.sin_port = htons(RIP_PORT);

sin.sin_addr.s_addr = addr;

if (bind(s, (struct sockaddr *)&sin,sizeof(sin)) < 0) {

if (serious)

BADERR(errno != EADDRINUSE, "bind(rip_sock)");