/** Send a server notice to all users with the indicated \a mode except
* for \a one.
* @param[in] one Client direction to skip (or NULL).
* @param[in] mode One mode character.
* @param[in] pattern Format string for server notice.
* @param[in] vl Argument list for format string.
*/
void vsendto_mode_butone(struct Client *one, struct Client *from, const char *mode,
const char *pattern, va_list vl)
{
struct VarData vd;
struct MsgBuf *mb;
struct Client* acptr = 0;
vd.vd_format = pattern;
va_copy(vd.vd_args, vl);
/* send to local users */
mb = msgq_make(0, ":%s " MSG_NOTICE " * :*** Notice -- %v", cli_name(from),
&vd);
for (acptr = &me; acptr; acptr = cli_prev(acptr)) {
if (IsUser(acptr)) {
switch (*mode) {
case 'O':
if (IsLocOp(acptr))
send_buffer(acptr, mb, 0);
break;
case 'o':
if (IsOper(acptr))
send_buffer(acptr, mb, 0);
break;
default:
break; /* ignore, should only happen if incorrectly injected via raw */
}
}
}
msgq_clean(mb);
}
/** Link \a cptr into #GlobalClientList.
* @param[in] cptr Client to link into the global list.
*/
void add_client_to_list(struct Client *cptr)
{
assert(cli_verify(cptr));
assert(cli_next(cptr) == 0);
assert(cli_prev(cptr) == 0);
/*
* Since we always insert new clients to the top of the list,
* this should mean the "me" is the bottom most item in the list.
* XXX - don't always count on the above, things change
*/
cli_prev(cptr) = 0;
cli_next(cptr) = GlobalClientList;
GlobalClientList = cptr;
if (cli_next(cptr))
cli_prev(cli_next(cptr)) = cptr;
}
/** Release a Client.
* In addition to the cleanup done by dealloc_client(), this will free
* any pending auth request, free the connection for local clients,
* and delete the processing timer for the client.
* @param[in] cptr Client to free.
*/
void free_client(struct Client* cptr)
{
if (!cptr)
return;
/*
* forget to remove the client from the hash table?
*/
assert(cli_verify(cptr));
assert(cli_hnext(cptr) == cptr);
/* or from linked list? */
assert(cli_next(cptr) == 0);
assert(cli_prev(cptr) == 0);
Debug((DEBUG_LIST, "Freeing client %s [%p], connection %p", cli_name(cptr),
cptr, cli_connect(cptr)));
if (cli_auth(cptr))
destroy_auth_request(cli_auth(cptr), 0);
/* Make sure we didn't magically get re-added to the list */
assert(cli_next(cptr) == 0);
assert(cli_prev(cptr) == 0);
if (cli_from(cptr) == cptr) { /* in other words, we're local */
cli_from(cptr) = 0;
/* timer must be marked as not active */
if (!cli_freeflag(cptr) && !t_active(&(cli_proc(cptr))))
dealloc_connection(cli_connect(cptr)); /* connection not open anymore */
else {
if (-1 < cli_fd(cptr) && cli_freeflag(cptr) & FREEFLAG_SOCKET)
socket_del(&(cli_socket(cptr))); /* queue a socket delete */
if (cli_freeflag(cptr) & FREEFLAG_TIMER)
timer_del(&(cli_proc(cptr))); /* queue a timer delete */
}
}
cli_connect(cptr) = 0;
dealloc_client(cptr); /* actually destroy the client */
}
/*
* Taken the code from ExitOneClient() for this and placed it here.
* - avalon
*/
void remove_client_from_list(struct Client *cptr)
{
assert(cli_verify(cptr));
assert(con_verify(cli_connect(cptr)));
assert(!cli_prev(cptr) || cli_verify(cli_prev(cptr)));
assert(!cli_next(cptr) || cli_verify(cli_next(cptr)));
assert(!IsMe(cptr));
/* Only remove from the list if it actually IS in the list.
* cli_next(cptr) cannot be NULL here if cptr is in the list,
* only &me is at the end, and we never try to remove &me -GW
*/
if(cli_next(cptr))
{
if (cli_prev(cptr))
cli_next(cli_prev(cptr)) = cli_next(cptr);
else {
GlobalClientList = cli_next(cptr);
cli_prev(GlobalClientList) = 0;
}
cli_prev(cli_next(cptr)) = cli_prev(cptr);
}
cli_next(cptr) = cli_prev(cptr) = 0;
if (IsUser(cptr) && cli_user(cptr)) {
add_history(cptr, 0);
off_history(cptr);
}
if (cli_user(cptr)) {
free_user(cli_user(cptr));
cli_user(cptr) = 0;
}
if (cli_serv(cptr)) {
if (cli_serv(cptr)->user) {
free_user(cli_serv(cptr)->user);
cli_serv(cptr)->user = 0;
}
if (cli_serv(cptr)->client_list)
MyFree(cli_serv(cptr)->client_list);
MyFree(cli_serv(cptr)->last_error_msg);
MyFree(cli_serv(cptr));
#ifdef DEBUGMODE
--servs.inuse;
#endif
}
free_client(cptr);
}
/** Remove \a cptr from lists that it is a member of.
* Specifically, this delinks \a cptr from #GlobalClientList, updates
* the whowas history list, frees its Client::cli_user and
* Client::cli_serv fields, and finally calls free_client() on it.
* @param[in] cptr Client to remove from lists and free.
*/
void remove_client_from_list(struct Client *cptr)
{
assert(cli_verify(cptr));
assert(con_verify(cli_connect(cptr)));
assert(!cli_prev(cptr) || cli_verify(cli_prev(cptr)));
assert(!cli_next(cptr) || cli_verify(cli_next(cptr)));
assert(!IsMe(cptr));
/* Only try remove cptr from the list if it IS in the list.
* cli_next(cptr) cannot be NULL here, as &me is always the end
* the list, and we never remove &me. -GW
*/
if(cli_next(cptr))
{
if (cli_prev(cptr))
cli_next(cli_prev(cptr)) = cli_next(cptr);
else {
GlobalClientList = cli_next(cptr);
cli_prev(GlobalClientList) = 0;
}
cli_prev(cli_next(cptr)) = cli_prev(cptr);
}
cli_next(cptr) = cli_prev(cptr) = 0;
if (IsUser(cptr) && cli_user(cptr)) {
add_history(cptr, 0);
off_history(cptr);
}
if (cli_user(cptr)) {
free_user(cli_user(cptr));
cli_user(cptr) = 0;
}
if (cli_serv(cptr)) {
if (cli_serv(cptr)->user) {
free_user(cli_serv(cptr)->user);
cli_serv(cptr)->user = 0;
}
if (cli_serv(cptr)->client_list)
MyFree(cli_serv(cptr)->client_list);
MyFree(cli_serv(cptr)->last_error_msg);
MyFree(cli_serv(cptr));
--servs.inuse;
--servs.alloc;
}
free_client(cptr);
}
/** Perform a very CPU-intensive verification of %GlobalClientList.
* This checks the Client::cli_magic and Client::cli_prev field for
* each element in the list, and also checks that there are no loops.
* Any detected error will lead to an assertion failure.
*/
void verify_client_list(void)
{
struct Client *client, *prev = 0;
unsigned int visited = 0;
for (client = GlobalClientList; client; client = cli_next(client), ++visited) {
/* Verify that this is a valid client, not a free'd one */
assert(cli_verify(client));
/* Verify that the list hasn't suddenly jumped around */
assert(cli_prev(client) == prev);
/* Verify that the list hasn't become circular */
assert(cli_next(client) != GlobalClientList);
assert(visited <= clients.alloc);
/* Remember what should precede us */
prev = client;
}
}
/* WARNING: Major CPU sink!
*
* This is a debugging routine meant to verify the integrity of the client
* linked list. It is meant to be comprehensive, to detect *any* corruption
* of that list. This means that it will be majorly CPU-intensive, and
* should *only* be enabled on servers that have DEBUGMODE enabled. Ignore
* this warning at your peril!
*/
void verify_client_list(void)
{
struct Client *client, *prev = 0, *sentinel = 0;
extern unsigned int ircrandom(void);
for (client = GlobalClientList; client; client = cli_next(client)) {
/* Verify that this is a valid client, not a free'd one */
assert(cli_verify(client));
/* Verify that the list hasn't suddenly jumped around */
assert(cli_prev(client) == prev);
/* Verify that the list hasn't become circular */
assert(cli_next(client) != GlobalClientList);
assert(!sentinel || client != sentinel);
prev = client; /* Remember what should preceed us */
if (!(ircrandom() % 50)) /* probabilistic loop detector */
sentinel = client;
}
}
/** Handle a connection that has sent a valid PASS and SERVER.
* @param cptr New peer server.
* @param aconf Connect block for \a cptr.
* @return Zero.
*/
int server_estab(struct Client *cptr, struct ConfItem *aconf)
{
struct Client* acptr = 0;
const char* inpath;
int i;
assert(0 != cptr);
assert(0 != cli_local(cptr));
inpath = cli_name(cptr);
if (IsUnknown(cptr)) {
if (aconf->passwd[0])
sendrawto_one(cptr, MSG_PASS " :%s", aconf->passwd);
/*
* Pass my info to the new server
*/
sendrawto_one(cptr, MSG_SERVER " %s 1 %Tu %Tu J%s %s%s +%s6 :%s",
cli_name(&me), cli_serv(&me)->timestamp,
cli_serv(cptr)->timestamp, MAJOR_PROTOCOL, NumServCap(&me),
feature_bool(FEAT_HUB) ? "h" : "",
*(cli_info(&me)) ? cli_info(&me) : "IRCers United");
}
det_confs_butmask(cptr, CONF_SERVER);
if (!IsHandshake(cptr))
hAddClient(cptr);
SetServer(cptr);
cli_handler(cptr) = SERVER_HANDLER;
Count_unknownbecomesserver(UserStats);
SetBurst(cptr);
/* nextping = CurrentTime; */
/*
* NOTE: check for acptr->user == cptr->serv->user is necessary to insure
* that we got the same one... bleah
*/
if (cli_serv(cptr)->user && *(cli_serv(cptr))->by &&
(acptr = findNUser(cli_serv(cptr)->by))) {
if (cli_user(acptr) == cli_serv(cptr)->user) {
sendcmdto_one(&me, CMD_NOTICE, acptr, "%C :Link with %s established.",
acptr, inpath);
}
else {
/*
* if not the same client, set by to empty string
*/
acptr = 0;
*(cli_serv(cptr))->by = '\0';
}
}
sendto_opmask(acptr, SNO_OLDSNO, "Link with %s established.", inpath);
cli_serv(cptr)->up = &me;
cli_serv(cptr)->updown = add_dlink(&(cli_serv(&me))->down, cptr);
sendto_opmask(0, SNO_NETWORK, "Net junction: %s %s", cli_name(&me),
cli_name(cptr));
SetJunction(cptr);
/*
* Old sendto_serv_but_one() call removed because we now
* need to send different names to different servers
* (domain name matching) Send new server to other servers.
*/
for (i = 0; i <= HighestFd; i++)
{
if (!(acptr = LocalClientArray[i]) || !IsServer(acptr) ||
acptr == cptr || IsMe(acptr))
continue;
if (!match(cli_name(&me), cli_name(cptr)))
continue;
sendcmdto_one(&me, CMD_SERVER, acptr,
"%s 2 0 %Tu J%02u %s%s +%s%s%s :%s", cli_name(cptr),
cli_serv(cptr)->timestamp, Protocol(cptr), NumServCap(cptr),
IsHub(cptr) ? "h" : "", IsService(cptr) ? "s" : "",
IsIPv6(cptr) ? "6" : "", cli_info(cptr));
}
/* Send these as early as possible so that glined users/juped servers can
* be removed from the network while the remote server is still chewing
* our burst.
*/
gline_burst(cptr);
jupe_burst(cptr);
/*
* Pass on my client information to the new server
*
* First, pass only servers (idea is that if the link gets
* canceled because the server was already there,
* there are no NICK's to be canceled...). Of course,
* if cancellation occurs, all this info is sent anyway,
* and I guess the link dies when a read is attempted...? --msa
*
* Note: Link cancellation to occur at this point means
* that at least two servers from my fragment are building
* up connection this other fragment at the same time, it's
* a race condition, not the normal way of operation...
*/
for (acptr = &me; acptr; acptr = cli_prev(acptr)) {
/* acptr->from == acptr for acptr == cptr */
if (cli_from(acptr) == cptr)
continue;
if (IsServer(acptr)) {
const char* protocol_str;
if (Protocol(acptr) > 9)
protocol_str = IsBurst(acptr) ? "J" : "P";
else
protocol_str = IsBurst(acptr) ? "J0" : "P0";
if (0 == match(cli_name(&me), cli_name(acptr)))
continue;
sendcmdto_one(cli_serv(acptr)->up, CMD_SERVER, cptr,
"%s %d 0 %Tu %s%u %s%s +%s%s%s :%s", cli_name(acptr),
cli_hopcount(acptr) + 1, cli_serv(acptr)->timestamp,
protocol_str, Protocol(acptr), NumServCap(acptr),
IsHub(acptr) ? "h" : "", IsService(acptr) ? "s" : "",
IsIPv6(acptr) ? "6" : "", cli_info(acptr));
}
}
for (acptr = &me; acptr; acptr = cli_prev(acptr))
{
/* acptr->from == acptr for acptr == cptr */
if (cli_from(acptr) == cptr)
continue;
if (IsUser(acptr))
{
char xxx_buf[25];
char *s = umode_str(acptr);
sendcmdto_one(cli_user(acptr)->server, CMD_NICK, cptr,
"%s %d %Tu %s %s %s%s%s%s %s%s :%s",
cli_name(acptr), cli_hopcount(acptr) + 1, cli_lastnick(acptr),
cli_user(acptr)->username, cli_user(acptr)->realhost,
*s ? "+" : "", s, *s ? " " : "",
iptobase64(xxx_buf, &cli_ip(acptr), sizeof(xxx_buf), IsIPv6(cptr)),
NumNick(acptr), cli_info(acptr));
}
}
/*
* Last, send the BURST.
* (Or for 2.9 servers: pass all channels plus statuses)
*/
{
struct Channel *chptr;
for (chptr = GlobalChannelList; chptr; chptr = chptr->next)
send_channel_modes(cptr, chptr);
}
sendcmdto_one(&me, CMD_END_OF_BURST, cptr, "");
return 0;
}
/* Rewritten by Run - 24 sept 94 */
static void exit_one_client(struct Client* bcptr, const char* comment)
{
struct SLink *lp;
struct Ban *bp;
if (cli_serv(bcptr) && cli_serv(bcptr)->client_list) /* Was SetServerYXX called ? */
ClearServerYXX(bcptr); /* Removes server from server_list[] */
if (IsUser(bcptr)) {
/*
* clear out uping requests
*/
if (IsUPing(bcptr))
uping_cancel(bcptr, 0);
/*
* Stop a running /LIST clean
*/
if (MyUser(bcptr) && cli_listing(bcptr)) {
MyFree(cli_listing(bcptr));
cli_listing(bcptr) = NULL;
}
/*
* If a person is on a channel, send a QUIT notice
* to every client (person) on the same channel (so
* that the client can show the "**signoff" message).
* (Note: The notice is to the local clients *only*)
*/
sendcmdto_common_channels_butone(bcptr, CMD_QUIT, NULL, ":%s", comment);
remove_user_from_all_channels(bcptr);
/* Clean up invitefield */
while ((lp = cli_user(bcptr)->invited))
del_invite(bcptr, lp->value.chptr);
/* Clean up silencefield */
while ((bp = cli_user(bcptr)->silence)) {
cli_user(bcptr)->silence = bp->next;
free_ban(bp);
}
/* Clean up snotice lists */
if (MyUser(bcptr))
set_snomask(bcptr, ~0, SNO_DEL);
if (IsInvisible(bcptr)) {
assert(UserStats.inv_clients > 0);
--UserStats.inv_clients;
}
if (IsOper(bcptr)) {
assert(UserStats.opers > 0);
--UserStats.opers;
}
if (MyConnect(bcptr))
Count_clientdisconnects(bcptr, UserStats);
else
Count_remoteclientquits(UserStats, bcptr);
}
else if (IsServer(bcptr))
{
/* Remove downlink list node of uplink */
remove_dlink(&(cli_serv(cli_serv(bcptr)->up))->down, cli_serv(bcptr)->updown);
cli_serv(bcptr)->updown = 0;
if (MyConnect(bcptr))
Count_serverdisconnects(UserStats);
else
Count_remoteserverquits(UserStats);
}
else if (IsMe(bcptr))
{
sendto_opmask_butone(0, SNO_OLDSNO, "ERROR: tried to exit me! : %s",
comment);
return; /* ...must *never* exit self! */
}
else if (IsUnknown(bcptr) || IsConnecting(bcptr) || IsHandshake(bcptr))
Count_unknowndisconnects(UserStats);
/*
* Update IPregistry
*/
if (IsIPChecked(bcptr))
IPcheck_disconnect(bcptr);
/*
* Remove from serv->client_list
* NOTE: user is *always* NULL if this is a server
*/
if (cli_user(bcptr)) {
assert(!IsServer(bcptr));
/* bcptr->user->server->serv->client_list[IndexYXX(bcptr)] = NULL; */
RemoveYXXClient(cli_user(bcptr)->server, cli_yxx(bcptr));
}
/* Remove bcptr from the client list */
#ifdef DEBUGMODE
if (hRemClient(bcptr) != 0)
Debug((DEBUG_ERROR, "%p !in tab %s[%s] %p %p %p %d %d %p",
bcptr, cli_name(bcptr), cli_from(bcptr) ? cli_sockhost(cli_from(bcptr)) : "??host",
cli_from(bcptr), cli_next(bcptr), cli_prev(bcptr), cli_fd(bcptr),
cli_status(bcptr), cli_user(bcptr)));
#else
hRemClient(bcptr);
#endif
remove_client_from_list(bcptr);
}
/*
* m_who - generic message handler
*
* parv[0] = sender prefix
* parv[1] = nickname mask list
* parv[2] = additional selection flag, only 'o' for now.
* and %flags to specify what fields to output
* plus a ,querytype if the t flag is specified
* so the final thing will be like o%tnchu,777
* parv[3] = _optional_ parameter that overrides parv[1]
* This can be used as "/quote who foo % :The Black Hacker
* to find me, parv[3] _can_ contain spaces !.
*/
int m_who(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
{
char *mask; /* The mask we are looking for */
char ch; /* Scratch char register */
struct Channel *chptr; /* Channel to show */
struct Client *acptr; /* Client to show */
int bitsel; /* Mask of selectors to apply */
int matchsel; /* Wich fields the match should apply on */
int counter; /* Query size counter,
initially used to count fields */
int commas; /* Does our mask contain any comma ?
If so is a list.. */
int fields; /* Mask of fields to show */
int isthere = 0; /* When this set the user is member of chptr */
char *nick; /* Single element extracted from
the mask list */
char *p; /* Scratch char pointer */
char *qrt; /* Pointer to the query type */
static char mymask[512]; /* To save the mask before corrupting it */
unsigned int who_marker; /* Used to mark clients we've touched */
/* Let's find where is our mask, and if actually contains something */
mask = ((parc > 1) ? parv[1] : 0);
if (parc > 3 && parv[3])
mask = parv[3];
if (mask && ((mask[0] == '\0') ||
(mask[1] == '\0' && ((mask[0] == '0') || (mask[0] == '*')))))
mask = 0;
/* Evaluate the flags now, we consider the second parameter
as "matchFlags%fieldsToInclude,querytype" */
bitsel = fields = counter = matchsel = 0;
qrt = 0;
if (parc > 2 && parv[2] && *parv[2])
{
p = parv[2];
while (((ch = *(p++))) && (ch != '%') && (ch != ','))
switch (ch)
{
case 'o':
case 'O':
bitsel |= WHOSELECT_OPER;
continue;
case 'x':
case 'X':
if (HasPriv(sptr, PRIV_WHOX))
{
log_write(LS_WHO, L_INFO, LOG_NOSNOTICE, "%#C WHO %s %s", sptr,
(BadPtr(parv[3]) ? parv[1] : parv[3]), parv[2]);
bitsel |= WHOSELECT_EXTRA;
}
continue;
case 'n':
case 'N':
matchsel |= WHO_FIELD_NIC;
continue;
case 'u':
case 'U':
matchsel |= WHO_FIELD_UID;
continue;
case 'h':
case 'H':
matchsel |= WHO_FIELD_HOS;
continue;
case 'i':
case 'I':
matchsel |= WHO_FIELD_NIP;
continue;
case 's':
case 'S':
matchsel |= WHO_FIELD_SER;
continue;
case 'r':
case 'R':
matchsel |= WHO_FIELD_REN;
continue;
case 'a':
case 'A':
matchsel |= WHO_FIELD_ACC;
continue;
}
if (ch == '%')
while ((ch = *p++) && (ch != ','))
{
counter++;
switch (ch)
{
case 'c':
case 'C':
fields |= WHO_FIELD_CHA;
break;
case 'd':
case 'D':
fields |= WHO_FIELD_DIS;
break;
case 'f':
case 'F':
fields |= WHO_FIELD_FLA;
break;
case 'h':
case 'H':
fields |= WHO_FIELD_HOS;
break;
case 'i':
case 'I':
fields |= WHO_FIELD_NIP;
break;
case 'l':
case 'L':
fields |= WHO_FIELD_IDL;
case 'n':
case 'N':
fields |= WHO_FIELD_NIC;
break;
case 'r':
case 'R':
fields |= WHO_FIELD_REN;
break;
case 's':
case 'S':
fields |= WHO_FIELD_SER;
break;
case 't':
case 'T':
fields |= WHO_FIELD_QTY;
break;
case 'u':
case 'U':
fields |= WHO_FIELD_UID;
break;
case 'a':
case 'A':
fields |= WHO_FIELD_ACC;
break;
default:
break;
}
};
if (ch)
qrt = p;
}
if (!matchsel)
matchsel = WHO_FIELD_DEF;
if (!fields)
counter = 7;
if (feature_bool(FEAT_HIS_WHO_SERVERNAME) && !IsAnOper(sptr))
matchsel &= ~WHO_FIELD_SER;
if (qrt && (fields & WHO_FIELD_QTY))
{
p = qrt;
if (!((*p > '9') || (*p < '0')))
p++;
if (!((*p > '9') || (*p < '0')))
p++;
if (!((*p > '9') || (*p < '0')))
p++;
*p = '\0';
}
else
qrt = 0;
/* I'd love to add also a check on the number of matches fields per time */
counter = (2048 / (counter + 4));
if (mask && (strlen(mask) > 510))
mask[510] = '\0';
who_marker = get_client_marker();
commas = (mask && strchr(mask, ','));
/* First treat mask as a list of plain nicks/channels */
if (mask)
{
strcpy(mymask, mask);
for (p = 0, nick = ircd_strtok(&p, mymask, ","); nick;
nick = ircd_strtok(&p, 0, ","))
{
if (IsChannelName(nick) && (chptr = FindChannel(nick)))
{
isthere = (find_channel_member(sptr, chptr) != 0);
if (isthere || SEE_CHANNEL(sptr, chptr, bitsel))
{
struct Membership* member;
for (member = chptr->members; member; member = member->next_member)
{
acptr = member->user;
if ((bitsel & WHOSELECT_OPER) && !SeeOper(sptr,acptr))
continue;
if ((acptr != sptr) && (member->status & CHFL_ZOMBIE))
continue;
if (!(isthere || (SEE_USER(sptr, acptr, bitsel))))
continue;
if (!Process(acptr)) /* This can't be moved before other checks */
continue;
if (!(isthere ||
(IsOper(sptr) && (bitsel & WHOSELECT_EXTRA) && HasPriv(sptr, PRIV_SEE_CHAN)) ||
(SHOW_MORE(sptr, counter))))
break;
do_who(sptr, acptr, chptr, fields, qrt);
}
}
}
else
{
if ((acptr = FindUser(nick)) &&
((!(bitsel & WHOSELECT_OPER)) || SeeOper(sptr,acptr)) &&
Process(acptr) && SHOW_MORE(sptr, counter))
{
do_who(sptr, acptr, 0, fields, qrt);
}
}
}
}
/* If we didn't have any comma in the mask treat it as a
real mask and try to match all relevant fields */
if (!(commas || (counter < 1)))
{
int minlen, cset;
static struct in_mask imask;
if (mask)
{
matchcomp(mymask, &minlen, &cset, mask);
if (matchcompIP(&imask, mask))
matchsel &= ~WHO_FIELD_NIP;
if ((minlen > NICKLEN) || !(cset & NTL_IRCNK))
matchsel &= ~WHO_FIELD_NIC;
if ((matchsel & WHO_FIELD_SER) &&
((minlen > HOSTLEN) || (!(cset & NTL_IRCHN))
|| (!markMatchexServer(mymask, minlen))))
matchsel &= ~WHO_FIELD_SER;
if ((minlen > USERLEN) || !(cset & NTL_IRCUI))
matchsel &= ~WHO_FIELD_UID;
if ((minlen > HOSTLEN) || !(cset & NTL_IRCHN))
matchsel &= ~WHO_FIELD_HOS;
}
/* First of all loop through the clients in common channels */
if ((!(counter < 1)) && matchsel) {
struct Membership* member;
struct Membership* chan;
for (chan = cli_user(sptr)->channel; chan; chan = chan->next_channel) {
chptr = chan->channel;
for (member = chptr->members; member; member = member->next_member)
{
acptr = member->user;
if (!(IsUser(acptr) && Process(acptr)))
continue; /* Now Process() is at the beginning, if we fail
we'll never have to show this acptr in this query */
if ((bitsel & WHOSELECT_OPER) && !SeeOper(sptr,acptr))
continue;
if ((mask) &&
((!(matchsel & WHO_FIELD_NIC))
|| matchexec(cli_name(acptr), mymask, minlen))
&& ((!(matchsel & WHO_FIELD_UID))
|| matchexec(cli_user(acptr)->username, mymask, minlen))
&& ((!(matchsel & WHO_FIELD_SER))
|| (!HasFlag(cli_user(acptr)->server, FLAG_MAP)))
&& ((!(matchsel & WHO_FIELD_HOS))
|| matchexec(cli_user(acptr)->host, mymask, minlen))
&& ((!(matchsel & WHO_FIELD_HOS))
|| !HasSetHost(acptr)
|| !HasHiddenHost(acptr)
|| !IsAnOper(sptr)
|| matchexec(cli_user(acptr)->realhost, mymask, minlen))
&& ((!(matchsel & WHO_FIELD_REN))
|| matchexec(cli_info(acptr), mymask, minlen))
&& ((!(matchsel & WHO_FIELD_NIP))
|| ((HasHiddenHost(acptr) || HasSetHost(acptr)) && !IsAnOper(sptr))
|| ((((cli_ip(acptr).s_addr & imask.mask.s_addr) !=
imask.bits.s_addr)) || (imask.fall
&& matchexec(ircd_ntoa((const char*) &(cli_ip(acptr))), mymask, minlen)))))
continue;
if (!SHOW_MORE(sptr, counter))
break;
do_who(sptr, acptr, chptr, fields, qrt);
}
}
}
/* Loop through all clients :-\, if we still have something to match to
and we can show more clients */
if ((!(counter < 1)) && matchsel)
for (acptr = cli_prev(&me); acptr; acptr = cli_prev(acptr))
{
if (!(IsUser(acptr) && Process(acptr)))
continue;
if ((bitsel & WHOSELECT_OPER) && !SeeOper(sptr,acptr))
continue;
if (!(SEE_USER(sptr, acptr, bitsel)))
continue;
if ((mask) &&
((!(matchsel & WHO_FIELD_NIC))
|| matchexec(cli_name(acptr), mymask, minlen))
&& ((!(matchsel & WHO_FIELD_UID))
|| matchexec(cli_user(acptr)->username, mymask, minlen))
&& ((!(matchsel & WHO_FIELD_SER))
|| (!HasFlag(cli_user(acptr)->server, FLAG_MAP)))
&& ((!(matchsel & WHO_FIELD_HOS))
|| matchexec(cli_user(acptr)->host, mymask, minlen))
&& ((!(matchsel & WHO_FIELD_HOS))
|| !HasSetHost(acptr)
|| !HasHiddenHost(acptr)
|| !IsAnOper(sptr)
|| matchexec(cli_user(acptr)->realhost, mymask, minlen))
&& ((!(matchsel & WHO_FIELD_REN))
|| matchexec(cli_info(acptr), mymask, minlen))
&& ((!(matchsel & WHO_FIELD_NIP))
|| (HasHiddenHost(acptr) && !IsAnOper(sptr))
|| ((((cli_ip(acptr).s_addr & imask.mask.s_addr) != imask.bits.s_addr))
|| (imask.fall
&& matchexec(ircd_ntoa((const char*) &(cli_ip(acptr))), mymask, minlen)))))
continue;
if (!SHOW_MORE(sptr, counter))
break;
do_who(sptr, acptr, 0, fields, qrt);
}
}
/* Make a clean mask suitable to be sent in the "end of" */
if (mask && (p = strchr(mask, ' ')))
*p = '\0';
send_reply(sptr, RPL_ENDOFWHO, BadPtr(mask) ? "*" : mask);
/* Notify the user if we decided that his query was too long */
if (counter < 0)
send_reply(sptr, ERR_QUERYTOOLONG, "WHO");
return 0;
}
