C++ (Cpp) _get_prefix_len Examples

Example #1

File: sc_netif.c Project: Huyfly/RIOT

static int _netif_add(char *cmd_name, kernel_pid_t dev, int argc, char **argv)
{
#ifdef MODULE_GNRC_IPV6_NETIF
    enum {
        _UNICAST = 0,
        _MULTICAST,     /* multicast value just to check if given addr is mc */
        _ANYCAST
    } type = _UNICAST;
    char *addr_str = argv[0];
    ipv6_addr_t addr;
    uint8_t prefix_len;

    if (argc > 1) {
        if (strcmp(argv[0], "anycast") == 0) {
            type = _ANYCAST;
            addr_str = argv[1];
        }
        else if (strcmp(argv[0], "multicast") == 0) {
            type = _MULTICAST;
            addr_str = argv[1];
        }
        else if (strcmp(argv[0], "unicast") == 0) {
            /* type already set to unicast */
            addr_str = argv[1];
        }
        else {
            _add_usage(cmd_name);
            return 1;
        }
    }

    prefix_len = _get_prefix_len(addr_str);

    if (ipv6_addr_from_str(&addr, addr_str) == NULL) {
        puts("error: unable to parse IPv6 address.");
        return 1;
    }

    if ((argc > 1) && (ipv6_addr_is_multicast(&addr)) && (type != _MULTICAST)) {
        puts("error: address was not a multicast address.");
        return 1;
    }

    if (gnrc_ipv6_netif_add_addr(dev, &addr, prefix_len,
                                 (type == _ANYCAST) ?
                                 GNRC_IPV6_NETIF_ADDR_FLAGS_NON_UNICAST :
                                 GNRC_IPV6_NETIF_ADDR_FLAGS_UNICAST) == NULL) {
        printf("error: unable to add IPv6 address\n");
        return 1;
    }

    printf("success: added %s/%d to interface %" PRIkernel_pid "\n", addr_str,
           prefix_len, dev);

    return 0;
#else
    (void)cmd_name;
    (void)dev;
    (void)argc;
    (void)argv;
    puts("error: unable to add IPv6 address.");

    return 1;
#endif
}

Example #2

File: sc_gnrc_netif.c Project: A-Paul/RIOT

static int _netif_add(char *cmd_name, kernel_pid_t iface, int argc, char **argv)
{
#ifdef MODULE_GNRC_IPV6
    enum {
        _UNICAST = 0,
        _ANYCAST
    } type = _UNICAST;
    char *addr_str = argv[0];
    ipv6_addr_t addr;
    uint16_t flags = GNRC_NETIF_IPV6_ADDRS_FLAGS_STATE_VALID;
    uint8_t prefix_len;

    if (argc > 1) {
        if (strcmp(argv[0], "anycast") == 0) {
            type = _ANYCAST;
            addr_str = argv[1];
        }
        else if (strcmp(argv[0], "unicast") == 0) {
            /* type already set to unicast */
            addr_str = argv[1];
        }
        else {
            _add_usage(cmd_name);
            return 1;
        }
    }

    prefix_len = _get_prefix_len(addr_str);

    if (ipv6_addr_from_str(&addr, addr_str) == NULL) {
        puts("error: unable to parse IPv6 address.");
        return 1;
    }

    if (ipv6_addr_is_multicast(&addr)) {
        if (gnrc_netapi_set(iface, NETOPT_IPV6_GROUP, 0, &addr,
                            sizeof(addr)) < 0) {
            printf("error: unable to join IPv6 multicast group\n");
            return 1;
        }
    }
    else {
        if (type == _ANYCAST) {
            flags |= GNRC_NETIF_IPV6_ADDRS_FLAGS_ANYCAST;
        }
        flags |= (prefix_len << 8U);
        if (gnrc_netapi_set(iface, NETOPT_IPV6_ADDR, flags, &addr,
                            sizeof(addr)) < 0) {
            printf("error: unable to add IPv6 address\n");
            return 1;
        }
    }

    printf("success: added %s/%d to interface %" PRIkernel_pid "\n", addr_str,
           prefix_len, iface);

    return 0;
#else
    (void)cmd_name;
    (void)iface;
    (void)argc;
    (void)argv;
    puts("error: unable to add IPv6 address.");

    return 1;
#endif
}