static int
do_chghost(struct Client *source_p, struct Client *target_p,
const char *newhost, int is_encap)
{
if (!clean_host(newhost))
{
sendto_realops_snomask(SNO_GENERAL, is_encap ? L_ALL : L_NETWIDE, "%s attempted to change hostname for %s to %s (invalid)",
IsServer(source_p) ? source_p->name : get_oper_name(source_p),
target_p->name, newhost);
/* sending this remotely may disclose important
* routing information -- jilles */
if (is_encap ? MyClient(target_p) : !ConfigServerHide.flatten_links)
sendto_one_notice(target_p, ":*** Notice -- %s attempted to change your hostname to %s (invalid)",
source_p->name, newhost);
return 0;
}
change_nick_user_host(target_p, target_p->name, target_p->username, newhost, 0, "Changing host");
if (irccmp(target_p->host, target_p->orighost))
{
SetDynSpoof(target_p);
if (MyClient(target_p))
sendto_one_numeric(target_p, RPL_HOSTHIDDEN, "%s :is now your hidden host (set by %s)", target_p->host, source_p->name);
}
else
{
ClearDynSpoof(target_p);
if (MyClient(target_p))
sendto_one_numeric(target_p, RPL_HOSTHIDDEN, "%s :hostname reset by %s", target_p->host, source_p->name);
}
if (MyClient(source_p))
sendto_one_notice(source_p, ":Changed hostname for %s to %s", target_p->name, target_p->host);
if (!IsServer(source_p) && !IsService(source_p))
sendto_realops_snomask(SNO_GENERAL, L_ALL, "%s changed hostname for %s to %s", get_oper_name(source_p), target_p->name, target_p->host);
return 1;
}
/*
* me_realhost
* parv[1] = real host
*
* Yes this contains a little race condition if someone does a whois
* in between the UID and REALHOST and use_whois_actually is enabled.
* I don't think that's a big problem as the whole thing is a
* race condition.
*/
static int
me_realhost(struct Client *client_p, struct Client *source_p,
int parc, const char *parv[])
{
if (!IsPerson(source_p))
return 0;
del_from_hostname_hash(source_p->orighost, source_p);
rb_strlcpy(source_p->orighost, parv[1], sizeof source_p->orighost);
if (irccmp(source_p->host, source_p->orighost))
SetDynSpoof(source_p);
else
ClearDynSpoof(source_p);
add_to_hostname_hash(source_p->orighost, source_p);
return 0;
}
static void
distribute_hostchange(struct Client *client)
{
if (irccmp(client->host, client->orighost))
sendto_one_numeric(client, RPL_HOSTHIDDEN, "%s :is now your hidden host",
client->host);
else
sendto_one_numeric(client, RPL_HOSTHIDDEN, "%s :hostname reset",
client->host);
sendto_server(NULL, NULL,
CAP_EUID | CAP_TS6, NOCAPS, ":%s CHGHOST %s :%s",
use_id(&me), use_id(client), client->host);
sendto_server(NULL, NULL,
CAP_TS6, CAP_EUID, ":%s ENCAP * CHGHOST %s :%s",
use_id(&me), use_id(client), client->host);
sendto_server(NULL, NULL,
NOCAPS, CAP_TS6, ":%s ENCAP * CHGHOST %s :%s",
me.name, client->name, client->host);
if (irccmp(client->host, client->orighost))
SetDynSpoof(client);
else
ClearDynSpoof(client);
}
static void
check_new_user(void *vdata)
{
struct Client *source_p = (void *)vdata;
if (IsIPSpoof(source_p))
{
source_p->umodes &= ~user_modes['h'];
return;
}
source_p->localClient->mangledhost = MyMalloc(HOSTLEN);
if (!irccmp(source_p->orighost, source_p->sockhost))
do_host_cloak(source_p->orighost, source_p->localClient->mangledhost, 1);
else
do_host_cloak(source_p->orighost, source_p->localClient->mangledhost, 0);
if (IsDynSpoof(source_p))
source_p->umodes &= ~user_modes['h'];
if (source_p->umodes & user_modes['h'])
{
strlcpy(source_p->host, source_p->localClient->mangledhost, sizeof(source_p->host));
if (irccmp(source_p->host, source_p->orighost))
SetDynSpoof(source_p);
}
}
