GList *
broadcast_addresses()
{
GList *result = NULL;
int s;
struct lifconf c;
int count;
if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
return (NULL);
count = number_of_interfaces(s);
memset(&c, 0, sizeof (c));
c.lifc_family = AF_INET;
c.lifc_flags = 0;
c.lifc_buf = calloc(count, sizeof (struct lifreq));
c.lifc_len = (count * sizeof (struct lifreq));
if (ioctl(s, SIOCGLIFCONF, (char *)&c) == 0) {
struct lifreq *r = c.lifc_req;
for (count = c.lifc_len / sizeof (struct lifreq);
count > 0; count--, r++) {
char *address = broadcast_address(s, r->lifr_name);
if (address != NULL) /* add it to the list */
result = g_list_append(result, address);
}
}
free(c.lifc_buf);
close(s);
return (result);
}
bool has_visited_all_interfaces() {
return interface_index() >= number_of_interfaces();
}
void set_all_interfaces_visited() {
_interface_index = number_of_interfaces();
}