C++ (Cpp) locate_srv_dns_1 Examples

Example #1

File: locate_kdc.c Project: davidben/krb5

static krb5_error_code
dns_locate_server(krb5_context context, const krb5_data *realm,
                  struct serverlist *serverlist, enum locate_service_type svc,
                  int socktype)
{
    const char *dnsname;
    int use_dns = _krb5_use_dns_kdc(context);
    krb5_error_code code;

    if (!use_dns)
        return 0;

    switch (svc) {
    case locate_service_kdc:
        dnsname = "_kerberos";
        break;
    case locate_service_master_kdc:
        dnsname = "_kerberos-master";
        break;
    case locate_service_kadmin:
        dnsname = "_kerberos-adm";
        break;
    case locate_service_krb524:
        dnsname = "_krb524";
        break;
    case locate_service_kpasswd:
        dnsname = "_kpasswd";
        break;
    default:
        return 0;
    }

    code = 0;
    if (socktype == SOCK_DGRAM || socktype == 0) {
        code = locate_srv_dns_1(realm, dnsname, "_udp", serverlist);
        if (code)
            Tprintf("dns udp lookup returned error %d\n", code);
    }
    if ((socktype == SOCK_STREAM || socktype == 0) && code == 0) {
        code = locate_srv_dns_1(realm, dnsname, "_tcp", serverlist);
        if (code)
            Tprintf("dns tcp lookup returned error %d\n", code);
    }
    return code;
}

Example #2

File: locate_kdc.c Project: PADL/krb5

static krb5_error_code
dns_locate_server_srv(krb5_context context, const krb5_data *realm,
                      struct serverlist *serverlist,
                      enum locate_service_type svc, k5_transport transport)
{
    const char *dnsname;
    int use_dns = _krb5_use_dns_kdc(context);
    krb5_error_code code;

    if (!use_dns)
        return 0;

    switch (svc) {
    case locate_service_kdc:
        dnsname = "_kerberos";
        break;
    case locate_service_master_kdc:
        dnsname = "_kerberos-master";
        break;
    case locate_service_kadmin:
        dnsname = "_kerberos-adm";
        break;
    case locate_service_krb524:
        dnsname = "_krb524";
        break;
    case locate_service_kpasswd:
        dnsname = "_kpasswd";
        break;
    default:
        return 0;
    }

    code = 0;
    if (transport == UDP || transport == TCP_OR_UDP)
        code = locate_srv_dns_1(context, realm, dnsname, "_udp", serverlist);

    if ((transport == TCP || transport == TCP_OR_UDP) && code == 0)
        code = locate_srv_dns_1(context, realm, dnsname, "_tcp", serverlist);

    if (serverlist->nservers == 0)
        TRACE_DNS_SRV_NOTFOUND(context);

    return code;
}

Example #3

File: t_locate_kdc.c Project: irakhlin/krb5

int
main (int argc, char *argv[])
{
    char *p, *realmname;
    krb5_data realm;
    krb5_context ctx;
    krb5_error_code err;
    int master = 0;

    p = strrchr (argv[0], '/');
    if (p)
        prog = p+1;
    else
        prog = argv[0];

    switch (argc) {
    case 2:
        /* foo $realm */
        realmname = argv[1];
        break;
    case 3:
        if (!strcmp (argv[1], "-c"))
            how = LOOKUP_CONF;
        else if (!strcmp (argv[1], "-d"))
            how = LOOKUP_DNS;
        else if (!strcmp (argv[1], "-m"))
            master = 1;
        else
            goto usage;
        realmname = argv[2];
        break;
    default:
    usage:
        fprintf (stderr, "%s: usage: %s [-c | -d | -m] realm\n", prog, prog);
        return 1;
    }

    err = krb5_init_context (&ctx);
    if (err)
        kfatal (err);

    realm.data = realmname;
    realm.length = strlen (realmname);

    switch (how) {
    case LOOKUP_CONF:
        err = krb5_locate_srv_conf(ctx, &realm, "kdc", &sl, htons(88));
        break;

    case LOOKUP_DNS:
        err = locate_srv_dns_1(&realm, "_kerberos", "_udp", &sl);
        break;

    case LOOKUP_WHATEVER:
        err = k5_locate_kdc(ctx, &realm, &sl, master, FALSE);
        break;
    }
    if (err) kfatal (err);
    print_addrs();

    k5_free_serverlist(&sl);
    krb5_free_context(ctx);
    return 0;
}