/*! \brief NICK command handler (called by unregistered,
* locally connected clients)
*
* \param client_p Pointer to allocated Client struct with physical connection
* to this server, i.e. with an open socket connected.
* \param source_p Pointer to allocated Client struct from which the message
* originally comes from. This can be a local or remote client.
* \param parc Integer holding the number of supplied arguments.
* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
* pointers.
* \note Valid arguments for this command are:
* - parv[0] = sender prefix
* - parv[1] = nickname
*/
static void
mr_nick(struct Client *client_p, struct Client *source_p,
int parc, char *parv[])
{
struct Client *target_p = NULL;
char nick[NICKLEN];
char *s = NULL;
if (parc < 2 || EmptyString(parv[1]))
{
sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN),
me.name, EmptyString(parv[0]) ? "*" : parv[0]);
return;
}
/* Terminate the nick at the first ~ */
if ((s = strchr(parv[1], '~')) != NULL)
*s = '\0';
/* copy the nick and terminate it */
strlcpy(nick, parv[1], sizeof(nick));
/* check the nickname is ok */
if (!clean_nick_name(nick, 1))
{
sendto_one(source_p, form_str(ERR_ERRONEUSNICKNAME),
me.name, EmptyString(parv[0]) ? "*" : parv[0], parv[1]);
return;
}
/* check if the nick is resv'd */
if (find_matching_name_conf(NRESV_TYPE, nick, NULL, NULL, 0) &&
!IsExemptResv(source_p))
{
sendto_one(source_p, form_str(ERR_ERRONEUSNICKNAME),
me.name, EmptyString(parv[0]) ? "*" : parv[0], nick);
return;
}
if ((target_p = find_client(nick)) == NULL)
set_initial_nick(source_p, nick);
else if (source_p == target_p)
strlcpy(source_p->name, nick, sizeof(source_p->name));
else
sendto_one(source_p, form_str(ERR_NICKNAMEINUSE), me.name, "*", nick);
}
/*! \brief NICK command handler (called by already registered,
* locally connected clients)
*
* \param client_p Pointer to allocated Client struct with physical connection
* to this server, i.e. with an open socket connected.
* \param source_p Pointer to allocated Client struct from which the message
* originally comes from. This can be a local or remote client.
* \param parc Integer holding the number of supplied arguments.
* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
* pointers.
* \note Valid arguments for this command are:
* - parv[0] = sender prefix
* - parv[1] = nickname
*/
static void
m_nick(struct Client *client_p, struct Client *source_p,
int parc, char *parv[])
{
char nick[NICKLEN + 1] = { '\0' };
struct Client *target_p = NULL;
struct MaskItem *conf = NULL;
assert(source_p == client_p);
if (parc < 2 || EmptyString(parv[1]))
{
sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN),
me.name, source_p->name);
return;
}
/* mark end of grace period, to prevent nickflooding */
if (!IsFloodDone(source_p))
flood_endgrace(source_p);
/* terminate nick to NICKLEN */
strlcpy(nick, parv[1], IRCD_MIN(sizeof(nick), ServerInfo.max_nick_length + 1));
/* check the nickname is ok */
if (!valid_nickname(nick, 1))
{
sendto_one(source_p, form_str(ERR_ERRONEUSNICKNAME), me.name,
source_p->name, nick, "Erroneous Nickname");
return;
}
if (!IsExemptResv(source_p) &&
!(HasUMode(source_p, UMODE_OPER) && ConfigFileEntry.oper_pass_resv) &&
(conf = find_matching_name_conf(CONF_NRESV, nick, NULL, NULL, 0)))
{
++conf->count;
sendto_one(source_p, form_str(ERR_ERRONEUSNICKNAME),
me.name, source_p->name, nick, conf->reason);
sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE,
"Forbidding reserved nick [%s] from user %s",
nick, get_client_name(client_p, HIDE_IP));
return;
}
if ((target_p = hash_find_client(nick)) == NULL)
change_local_nick(source_p, nick);
else if (target_p == source_p)
{
/*
* If (target_p == source_p) the client is changing nicks between
* equivalent nicknames ie: [nick] -> {nick}
*/
/* Check the nick isn't exactly the same */
if (strcmp(target_p->name, nick))
change_local_nick(source_p, nick);
}
else if (IsUnknown(target_p))
{
/*
* If the client that has the nick isn't registered yet (nick but no
* user) then drop the unregged client
*/
exit_client(target_p, &me, "Overridden");
change_local_nick(source_p, nick);
}
else
sendto_one(source_p, form_str(ERR_NICKNAMEINUSE), me.name,
source_p->name, nick);
}
/*! \brief NICK command handler (called by already registered,
* locally connected clients)
*
* \param client_p Pointer to allocated Client struct with physical connection
* to this server, i.e. with an open socket connected.
* \param source_p Pointer to allocated Client struct from which the message
* originally comes from. This can be a local or remote client.
* \param parc Integer holding the number of supplied arguments.
* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
* pointers.
* \note Valid arguments for this command are:
* - parv[0] = sender prefix
* - parv[1] = nickname
*/
static void
m_nick(struct Client *client_p, struct Client *source_p,
int parc, char *parv[])
{
char nick[NICKLEN];
struct Client *target_p = NULL;
if (parc < 2 || EmptyString(parv[1]))
{
sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN),
me.name, source_p->name);
return;
}
/* mark end of grace period, to prevent nickflooding */
if (!IsFloodDone(source_p))
flood_endgrace(source_p);
/* terminate nick to NICKLEN */
strlcpy(nick, parv[1], sizeof(nick));
/* check the nickname is ok */
if (!clean_nick_name(nick, 1))
{
sendto_one(source_p, form_str(ERR_ERRONEUSNICKNAME),
me.name, source_p->name, nick);
return;
}
if (find_matching_name_conf(NRESV_TYPE, nick,
NULL, NULL, 0) && !IsExemptResv(source_p) &&
!(IsOper(source_p) && ConfigFileEntry.oper_pass_resv))
{
sendto_one(source_p, form_str(ERR_ERRONEUSNICKNAME),
me.name, source_p->name, nick);
return;
}
if ((target_p = find_client(nick)) == NULL)
change_local_nick(client_p, source_p, nick);
else if (target_p == source_p)
{
/*
* If (target_p == source_p) the client is changing nicks between
* equivalent nicknames ie: [nick] -> {nick}
*/
/* check the nick isnt exactly the same */
if (strcmp(target_p->name, nick))
change_local_nick(client_p, source_p, nick);
}
else if (IsUnknown(target_p))
{
/*
* if the client that has the nick isn't registered yet (nick but no
* user) then drop the unregged client
*/
exit_client(target_p, &me, "Overridden");
change_local_nick(client_p, source_p, nick);
}
else
sendto_one(source_p, form_str(ERR_NICKNAMEINUSE), me.name,
source_p->name, nick);
}
/* Join a channel, ignoring forwards, +ib, etc. It notifes source_p of any errors joining
* NB: this assumes a local user.
*/
void user_join_override(struct Client * client_p, struct Client * source_p, struct Client * target_p, const char * channels)
{
static char jbuf[BUFSIZE];
struct ConfItem *aconf;
struct Channel *chptr = NULL;
char *name;
const char *modes;
char *p = NULL;
int flags;
char *chanlist;
jbuf[0] = '\0';
if(channels == NULL)
return;
/* rebuild the list of channels theyre supposed to be joining. */
chanlist = LOCAL_COPY(channels);
for(name = rb_strtok_r(chanlist, ",", &p); name; name = rb_strtok_r(NULL, ",", &p))
{
/* check the length and name of channel is ok */
if(!check_channel_name_loc(target_p, name) || (strlen(name) > LOC_CHANNELLEN))
{
sendto_one_numeric(source_p, ERR_BADCHANNAME,
form_str(ERR_BADCHANNAME), (unsigned char *) name);
continue;
}
/* join 0 parts all channels */
if(*name == '0' && (name[1] == ',' || name[1] == '\0') && name == chanlist)
{
(void) strcpy(jbuf, "0");
continue;
}
/* check it begins with # or & */
else if(!IsChannelName(name))
{
sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL,
form_str(ERR_NOSUCHCHANNEL), name);
continue;
}
/* see if its resv'd */
if(!IsExemptResv(target_p) && (aconf = hash_find_resv(name)))
{
sendto_one_numeric(source_p, ERR_BADCHANNAME,
form_str(ERR_BADCHANNAME), name);
/* dont update tracking for jupe exempt users, these
* are likely to be spamtrap leaves
*/
if(IsExemptJupe(source_p))
aconf->port--;
continue;
}
if(splitmode && !IsOper(target_p) && (*name != '&') &&
ConfigChannel.no_join_on_split)
{
sendto_one(source_p, form_str(ERR_UNAVAILRESOURCE),
me.name, source_p->name, name);
continue;
}
if(*jbuf)
(void) strcat(jbuf, ",");
(void) rb_strlcat(jbuf, name, sizeof(jbuf));
}
for(name = rb_strtok_r(jbuf, ",", &p); name; name = rb_strtok_r(NULL, ",", &p))
{
/* JOIN 0 simply parts all channels the user is in */
if(*name == '0' && !atoi(name))
{
if(target_p->user->channel.head == NULL)
continue;
do_join_0(&me, target_p);
continue;
}
if((chptr = find_channel(name)) != NULL)
{
if(IsMember(target_p, chptr))
{
/* debugging is fun... */
sendto_one_notice(source_p, ":*** Notice -- %s is already in %s",
target_p->name, chptr->chname);
return;
}
add_user_to_channel(chptr, target_p, CHFL_PEON);
if (chptr->mode.join_num && rb_current_time() - chptr->join_delta >= chptr->mode.join_time)
{
chptr->join_count = 0;
chptr->join_delta = rb_current_time();
}
chptr->join_count++;
sendto_channel_local(ALL_MEMBERS, chptr, ":%s!%s@%s JOIN :%s",
target_p->name, target_p->username,
target_p->host, chptr->chname);
sendto_server(target_p, chptr, CAP_TS6, NOCAPS,
":%s JOIN %ld %s +",
get_id(target_p, client_p), (long) chptr->channelts,
chptr->chname);
del_invite(chptr, target_p);
if(chptr->topic != NULL)
{
sendto_one(target_p, form_str(RPL_TOPIC), me.name,
target_p->name, chptr->chname, chptr->topic);
sendto_one(target_p, form_str(RPL_TOPICWHOTIME),
me.name, source_p->name, chptr->chname,
chptr->topic_info, chptr->topic_time);
}
channel_member_names(chptr, target_p, 1);
}
else
{
hook_data_channel_activity hook_info;
char statusmodes[5] = "";
if(!check_channel_name(name))
{
sendto_one(source_p, form_str(ERR_BADCHANNAME), me.name,
source_p->name, (unsigned char *) name);
return;
}
/* channel name must begin with & or # */
if(!IsChannelName(name))
{
sendto_one(source_p, form_str(ERR_BADCHANNAME), me.name,
source_p->name, (unsigned char *) name);
return;
}
/* name can't be longer than CHANNELLEN */
if(strlen(name) > CHANNELLEN)
{
sendto_one_notice(source_p, ":Channel name is too long");
return;
}
chptr = get_or_create_channel(target_p, name, NULL);
flags = CHFL_CHANOP;
add_user_to_channel(chptr, target_p, flags);
if (chptr->mode.join_num &&
rb_current_time() - chptr->join_delta >= chptr->mode.join_time)
{
chptr->join_count = 0;
chptr->join_delta = rb_current_time();
}
chptr->join_count++;
sendto_channel_local(ALL_MEMBERS, chptr, ":%s!%s@%s JOIN :%s",
target_p->name, target_p->username,
target_p->host, chptr->chname);
chptr->mode.mode |= MODE_TOPICLIMIT;
chptr->mode.mode |= MODE_NOPRIVMSGS;
modes = channel_modes(chptr, &me);
sendto_channel_local(ALL_MEMBERS, chptr, ":%s MODE %s %s",
me.name, chptr->chname, modes);
strcat(statusmodes, "@");
sendto_server(target_p, chptr, CAP_TS6, NOCAPS,
":%s SJOIN %ld %s %s :%s%s",
me.id, (long) chptr->channelts,
chptr->chname, modes, statusmodes,
get_id(target_p, client_p));
target_p->localClient->last_join_time = rb_current_time();
channel_member_names(chptr, target_p, 1);
/* Call channel join hooks */
hook_info.client = source_p;
hook_info.chptr = chptr;
hook_info.key = chptr->mode.key;
call_hook(h_channel_join, &hook_info);
/* we do this to let the oper know that a channel was created, this will be
* seen from the server handling the command instead of the server that
* the oper is on.
*/
sendto_one_notice(source_p, ":*** Notice -- Creating channel %s", chptr->chname);
}
}
return;
}
