37 FILE *irc_connect (char *server, unsigned int port)

    37 FILE *irc_connect (char *server, char *port)

    39     struct hostent *he;

    39     struct addrinfo hints;

    40     char *ip;

    40     struct addrinfo *result, *rp;

    41     struct sockaddr_in ca;

    41 

    42     int csocket;

    42     int csocket = -1;

    45     he = gethostbyname (server);

    45     memset (&hints, 0, sizeof (struct addrinfo));

    46     if (he == NULL) {

    46     hints.ai_family = AF_UNSPEC;

    47         perror ("GETHOSTBYNAME");

    47     hints.ai_socktype = SOCK_STREAM;

    48     hints.ai_flags = 0;

    49     hints.ai_protocol = IPPROTO_TCP;

    50 

    51     if (getaddrinfo (server, port, &hints, &result) != 0) {

    52         perror ("getaddrinfo");

    51     if ((ip = inet_ntoa (*((struct in_addr *)he->h_addr_list[0]))) == NULL) {

    56     for (rp = result; rp != NULL; rp = rp->ai_next) {

    52         perror ("INET_NTOA");

    57         if ((csocket = socket (rp->ai_family, rp->ai_socktype, rp->ai_protocol)) == -1)

    53         return NULL;

    58             continue;

    54     } else

    59 

    55         printf ("IP: %s\n", ip);

    60         if (connect (csocket, rp->ai_addr, rp->ai_addrlen) != -1) {

    56 

    61             fprintf (stderr, "Connected via %s\n", (rp->ai_family == AF_INET6) ? "IPv6" : "IPv4");

    57     ca.sin_family = AF_INET;

    62             break;

    58     ca.sin_addr.s_addr = inet_addr (ip);

    63         }

    59     ca.sin_port = htons (port);

    64         close (csocket);

    60 

    65     }

    61     csocket = socket (AF_INET, SOCK_STREAM, IPPROTO_TCP);

    66 

    62     if (connect (csocket, (struct sockaddr *)&ca, (socklen_t) sizeof (ca)) == -1) {

    67     if (result != NULL)

    63         perror ("CONNECT");

    68         freeaddrinfo (result);

    69 

    70     if (csocket < 0) {

    71         perror ("Cannot connect");