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ircu2.9.32/ircd/s_user.c
Philippe L'Heureux ab64084f63 init
2023-12-26 16:40:53 -05:00

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/************************************************************************
* IRC - Internet Relay Chat, ircd/s_user.c (formerly ircd/s_msg.c)
* Copyright (C) 1990 Jarkko Oikarinen and
* University of Oulu, Computing Center
*
* See file AUTHORS in IRC package for additional names of
* the programmers.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 1, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef lint
static char sccsid[] = "@(#)s_user.c 2.74 2/8/94 (C) 1988 University of Oulu, \
Computing Center and Jarkko Oikarinen";
#endif
#include "struct.h"
#include "common.h"
#include "sys.h"
#include "numeric.h"
#include "msg.h"
#include "channel.h"
#include "userload.h"
#include <sys/stat.h>
#include <utmp.h>
#include <fcntl.h>
#include "h.h"
void send_umode_out PROTO((aClient*, aClient *, int));
void send_umode PROTO((aClient *, aClient *, int, int, char *));
int is_silenced PROTO((aClient *, aClient *));
static char buf[BUFSIZE], buf2[BUFSIZE];
/*
** m_functions execute protocol messages on this server:
**
** cptr is always NON-NULL, pointing to a *LOCAL* client
** structure (with an open socket connected!). This
** identifies the physical socket where the message
** originated (or which caused the m_function to be
** executed--some m_functions may call others...).
**
** sptr is the source of the message, defined by the
** prefix part of the message if present. If not
** or prefix not found, then sptr==cptr.
**
** (!IsServer(cptr)) => (cptr == sptr), because
** prefixes are taken *only* from servers...
**
** (IsServer(cptr))
** (sptr == cptr) => the message didn't
** have the prefix.
**
** (sptr != cptr && IsServer(sptr) means
** the prefix specified servername. (?)
**
** (sptr != cptr && !IsServer(sptr) means
** that message originated from a remote
** user (not local).
**
** combining
**
** (!IsServer(sptr)) means that, sptr can safely
** taken as defining the target structure of the
** message in this server.
**
** *Always* true (if 'parse' and others are working correct):
**
** 1) sptr->from == cptr (note: cptr->from == cptr)
**
** 2) MyConnect(sptr) <=> sptr == cptr (e.g. sptr
** *cannot* be a local connection, unless it's
** actually cptr!). [MyConnect(x) should probably
** be defined as (x == x->from) --msa ]
**
** parc number of variable parameter strings (if zero,
** parv is allowed to be NULL)
**
** parv a NULL terminated list of parameter pointers,
**
** parv[0], sender (prefix string), if not present
** this points to an empty string.
** parv[1]...parv[parc-1]
** pointers to additional parameters
** parv[parc] == NULL, *always*
**
** note: it is guaranteed that parv[0]..parv[parc-1] are all
** non-NULL pointers.
*/
/*
** next_client
** Local function to find the next matching client. The search
** can be continued from the specified client entry. Normal
** usage loop is:
**
** for (x = client; x = next_client(x,mask); x = x->next)
** HandleMatchingClient;
**
*/
aClient *next_client(next, ch)
Reg1 aClient *next; /* First client to check */
Reg2 char *ch; /* search string (may include wilds) */
{
Reg3 aClient *tmp = next;
next = find_client(ch, tmp);
if (tmp && tmp->prev == next)
return NULL;
if (next != tmp)
return next;
for ( ; next; next = next->next)
{
if (IsService(next))
continue;
if (!match(ch, next->name) || !matches(next->name, ch))
break;
}
return next;
}
/*
** hunt_server
**
** Do the basic thing in delivering the message (command)
** across the relays to the specific server (server) for
** actions.
**
** Note: The command is a format string and *MUST* be
** of prefixed style (e.g. ":%s COMMAND %s ...").
** Command can have only max 8 parameters.
**
** server parv[server] is the parameter identifying the
** target server.
**
** *WARNING*
** parv[server] is replaced with the pointer to the
** real servername from the matched client (I'm lazy
** now --msa).
**
** returns: (see #defines)
*/
int hunt_server(cptr, sptr, command, server, parc, parv)
aClient *cptr, *sptr;
char *command, *parv[];
int server, parc;
{
aClient *acptr;
/*
** Assume it's me, if no server
*/
if (parc <= server || BadPtr(parv[server]) ||
matches(me.name, parv[server]) == 0 ||
matches(parv[server], me.name) == 0)
return (HUNTED_ISME);
/*
** These are to pickup matches that would cause the following
** message to go in the wrong direction while doing quick fast
** non-matching lookups.
*/
if ((acptr = find_client(parv[server], NULL)))
if (acptr->from == sptr->from && !MyConnect(acptr))
acptr = NULL;
if (!acptr && (acptr = find_server(parv[server], NULL)))
if (acptr->from == sptr->from && !MyConnect(acptr))
acptr = NULL;
if (!acptr)
for (acptr = client, (void)collapse(parv[server]);
(acptr = next_client(acptr, parv[server]));
acptr = acptr->next)
{
if (acptr->from == sptr->from && !MyConnect(acptr))
continue;
/*
* Fix to prevent looping in case the parameter for
* some reason happens to match someone from the from
* link --jto
*/
if (IsRegistered(acptr) && (acptr != cptr))
break;
}
if (acptr)
{
if (IsMe(acptr) || MyClient(acptr))
return HUNTED_ISME;
if (matches(acptr->name, parv[server]))
parv[server] = acptr->name;
sendto_one(acptr, command, parv[0],
parv[1], parv[2], parv[3], parv[4],
parv[5], parv[6], parv[7], parv[8]);
return(HUNTED_PASS);
}
sendto_one(sptr, err_str(ERR_NOSUCHSERVER), me.name,
parv[0], parv[server]);
return(HUNTED_NOSUCH);
}
/*
** 'do_nick_name' ensures that the given parameter (nick) is
** really a proper string for a nickname (note, the 'nick'
** may be modified in the process...)
**
** RETURNS the length of the final NICKNAME (0, if
** nickname is illegal)
**
** Nickname characters are in range
** 'A'..'}', '_', '-', '0'..'9'
** anything outside the above set will terminate nickname.
** In addition, the first character cannot be '-'
** or a Digit.
**
** Note:
** '~'-character should be allowed, but
** a change should be global, some confusion would
** result if only few servers allowed it...
*/
static int do_nick_name(nick)
char *nick;
{
Reg1 char *ch;
if (*nick == '-' || isdigit(*nick)) /* first character in [0..9-] */
return 0;
for (ch = nick; *ch && (ch - nick) < NICKLEN; ch++)
if (!isvalid(*ch) || isspace(*ch))
break;
*ch = '\0';
return (ch - nick);
}
/*
** canonize
**
** reduce a string of duplicate list entries to contain only the unique
** items. Unavoidably O(n^2).
*/
char *canonize(buffer)
char *buffer;
{
static char cbuf[BUFSIZ];
register char *s, *t, *cp = cbuf;
register int l = 0;
char *p = NULL, *p2;
*cp = '\0';
for (s = strtoken(&p, buffer, ","); s; s = strtoken(&p, NULL, ","))
{
if (l)
{
for (p2 = NULL, t = strtoken(&p2, cbuf, ","); t;
t = strtoken(&p2, NULL, ","))
if (!mycmp(s, t))
break;
else if (p2)
p2[-1] = ',';
}
else
t = NULL;
if (!t)
{
if (l)
*(cp-1) = ',';
else
l = 1;
(void)strcpy(cp, s);
if (p)
cp += (p - s);
}
else if (p2)
p2[-1] = ',';
}
return cbuf;
}
/*
** check_clones
** This function counts the number of clients with the
** same host as cptr that connected less than 20 seconds ago.
** return value
** number of clients with same hosts (including self)
** -SeKs
*/
#ifdef CHECK_CLONE
static int check_clones(cptr)
aClient *cptr;
{
struct abacklog {
struct in_addr ip;
time_t TS;
struct abacklog *next;
};
static struct abacklog *backlog=NULL;
register struct abacklog **blscn=&backlog,*blptr;
register int count=0;
/* First, ditch old entries */
while(*blscn!=NULL)
{
if((*blscn)->TS+CHECK_CLONE_PERIOD < now)
{
blptr=*blscn;
*blscn=blptr->next;
MyFree((char *)blptr);
}
else
blscn=&(*blscn)->next;
}
/* Now add new item to the list */
blptr=(struct abacklog *)MyMalloc(sizeof(struct abacklog));
blptr->ip.s_addr=cptr->ip.s_addr;
blptr->TS=now;
blptr->next=backlog;
backlog=blptr;
/* Count the number of entries from the same host */
blptr=backlog;
while(blptr!=NULL)
{
if(blptr->ip.s_addr==cptr->ip.s_addr)
count++;
blptr=blptr->next;
}
return (count);
}
#endif
/*
** register_user
** This function is called when both NICK and USER messages
** have been accepted for the client, in whatever order. Only
** after this the USER message is propagated.
**
** NICK's must be propagated at once when received, although
** it would be better to delay them too until full info is
** available. Doing it is not so simple though, would have
** to implement the following:
**
** 1) user telnets in and gives only "NICK foobar" and waits
** 2) another user far away logs in normally with the nick
** "foobar" (quite legal, as this server didn't propagate
** it).
** 3) now this server gets nick "foobar" from outside, but
** has already the same defined locally. Current server
** would just issue "KILL foobar" to clean out dups. But,
** this is not fair. It should actually request another
** nick from local user or kill him/her...
*/
static int register_user(cptr, sptr, nick, username)
aClient *cptr;
aClient *sptr;
char *nick, *username;
{
Reg1 aConfItem *aconf;
char *parv[3], *tmpstr, *tmpstr2, c, d;
short oldstatus = sptr->status, upper = 0, lower = 0;
short pos = 0, leadcaps = 0, other = 0, digits = 0, badid = 0;
short digitgroups = 0;
anUser *user = sptr->user;
int i;
Dlink *lp;
user->last = now;
parv[0] = sptr->name;
parv[1] = parv[2] = NULL;
if (MyConnect(sptr))
{
if ((i = check_client(sptr)))
{
sendto_ops("%s from %s.", i == -3 ?
"Too many connections" :
"Unauthorized connection",
get_client_host(sptr));
ircstp->is_ref++;
return exit_client(cptr, sptr, &me, i == -3 ?
"No more connections" :
"No Authorization");
}
if (IsUnixSocket(sptr))
strncpyzt(user->host, me.sockhost, HOSTLEN+1);
else
strncpyzt(user->host, sptr->sockhost, HOSTLEN+1);
aconf = sptr->confs->value.aconf;
if (sptr->flags & FLAGS_DOID && !(sptr->flags & FLAGS_GOTID))
{
/* because username may point to user->username */
char temp[USERLEN+1];
strncpyzt(temp, username, USERLEN+1);
*user->username = '~';
(void)strncpy(&user->username[1], temp, USERLEN);
user->username[USERLEN] = '\0';
}
else if (sptr->flags & FLAGS_GOTID)
strncpyzt(user->username, sptr->username, USERLEN+1);
else
strncpyzt(user->username, username, USERLEN+1);
if (!BadPtr(aconf->passwd) &&
!StrEq("ONE", aconf->passwd) &&
!StrEq(sptr->passwd, aconf->passwd))
{
ircstp->is_ref++;
sendto_one(sptr, err_str(ERR_PASSWDMISMATCH),
me.name, parv[0]);
return exit_client(cptr, sptr, &me, "Bad Password");
}
bzero(sptr->passwd, sizeof(sptr->passwd));
/*
* following block for the benefit of time-dependent K:-lines
*/
if (find_kill(sptr))
{
ircstp->is_ref++;
return exit_client(cptr, sptr, &me, "K-lined");
}
#ifdef R_LINES
if (find_restrict(sptr))
{
ircstp->is_ref++;
return exit_client(cptr, sptr, &me , "R-lined");
}
#endif
#ifdef CHECK_CLONE
/*
** Ensure that no more than 5 clients from the
** same host connect within 20 seconds. -SeKs
*/
if (check_clones(sptr) > CHECK_CLONE_LIMIT
#ifdef CHECK_CLONE_DELAY
&& me.since + CHECK_CLONE_DELAY < now
#endif
){
sendto_ops("Possible clonebot attack from %s.",
get_client_host(sptr));
ircstp->is_ref++;
return exit_client(cptr, sptr, &me,
"Too many connections from same host");
}
#endif
#ifdef DISALLOW_MIXED_CASE
/* check for mixed case usernames, meaning probably hacked Jon2 3-94
Summary of rules now implemented in this patch: Ensor 11-94
In a mixed-case name, if first char is upper, one more upper may
appear anywhere. (A mixed-case name *must* have an upper first
char, and may have one other upper.)
A third upper may appear if all 3 appear at the beginning of the
name, separated only by "others" (-/_/.).
A single group of digits is allowed anywhere.
Two groups of digits are allowed if at least one of the groups is
at the beginning or the end.
Only one '-', '_', or '.' is allowed (or two, if not consecutive).
But not as the first or last char.
No other special characters are allowed.
Name must contain at least one letter.
*/
tmpstr2 = tmpstr = (username[0] == '~' ? &username[1] : username);
while (*tmpstr && !badid) {
pos++;
c = *tmpstr;
tmpstr++;
if (islower(c)) {
lower++;
}
else if (isupper(c)) {
upper++;
if ((leadcaps || pos == 1) && !lower && !digits)
leadcaps++;
}
else if (isdigit(c)) {
digits++;
if (pos == 1 || !isdigit(d)) {
digitgroups++;
if (digitgroups > 2)
badid = 1;
}
}
else if (c == '-' || c == '_' || c == '.') {
other++;
if (pos == 1)
badid = 1;
else if (d == '-' || d == '_' || d == '.' || other > 2)
badid = 1;
}
else badid = 1;
d = c;
}
if (!badid) {
if (lower && upper && (!leadcaps || leadcaps > 3 ||
(upper > 2 && upper > leadcaps)))
badid = 1;
else if (digitgroups == 2 &&
!(isdigit(tmpstr2[0]) || isdigit(c)))
badid = 1;
else if ((!lower && !upper) || !isalnum(c))
badid = 1;
}
if (badid && (!(sptr->flags & FLAGS_GOTID) ||
strcmp(sptr->username, username) != 0)) {
#ifdef NOTIFY_OPS_INVALID_UID
sendto_ops("Invalid username: \"%s\" [%s!%s@%s]",
username, sptr->name, (sptr->flags & FLAGS_GOTID) ?
sptr->username : username, sptr->sockhost);
#endif
ircstp->is_ref++;
return exit_client(cptr, sptr, &me, "USER: Bad username");
}
#endif /* DISALLOW_MIXED_CASE */
if (oldstatus == STAT_MASTER && MyConnect(sptr))
(void)m_oper(&me, sptr, 1, parv);
}
else
strncpyzt(user->username, username, USERLEN+1);
SetClient(sptr);
user->clink = add_dlink(&sptr->user->server->serv->client, sptr);
if (MyConnect(sptr))
{
sendto_one(sptr, rpl_str(RPL_WELCOME), me.name, nick, nick);
/* This is a duplicate of the NOTICE but see below...*/
sendto_one(sptr, rpl_str(RPL_YOURHOST), me.name, nick,
get_client_name(&me, FALSE), version);
#ifdef IRCII_KLUDGE
/*
** Don't mess with this one - IRCII needs it! -Avalon
*/
sendto_one(sptr,
"NOTICE %s :*** Your host is %s, running version %s",
nick, get_client_name(&me, FALSE), version);
#endif
sendto_one(sptr, rpl_str(RPL_CREATED),me.name,nick,creation);
sendto_one(sptr, rpl_str(RPL_MYINFO), me.name, parv[0],
me.name, version);
(void)m_lusers(sptr, sptr, 1, parv);
update_load();
(void)m_motd(sptr, sptr, 1, parv);
nextping = now;
sendto_realops("Client connecting: %s (%s@%s)", nick,
user->username, user->host);
}
else if (IsServer(cptr))
{
aClient *acptr;
acptr = user->server;
if (acptr->from != sptr->from)
{
sendto_one(cptr, ":%s KILL %s :%s (%s != %s[%s])",
me.name, sptr->name, me.name,
user->server->name, acptr->from->name,
acptr->from->sockhost);
sptr->flags |= FLAGS_KILLED;
return exit_client(cptr, sptr, &me,
"NICK server wrong direction");
}
else sptr->flags|=(acptr->flags & FLAGS_TS8);
}
sendto_serv_butone(cptr, ":%s NICK %s %d %d %s %s %s :%s",
user->server->name,
nick, sptr->hopcount+1, sptr->lastnick, user->username, user->host,
user->server->name, sptr->info);
if (MyConnect(sptr))
send_umode_out(cptr, sptr, 0);
#ifdef USE_SERVICES
check_services_butone(SERVICE_WANT_NICK, sptr,
":%s NICK %s %d %d %s %s %s :%s",
user->server->name,
nick, sptr->hopcount, sptr->lastnick,
user->username, user->host, user->server->name, sptr->info);
#endif
#ifdef NPATH
note_signon(sptr);
#endif
return 0;
}
/*
** m_nick
** parv[0] = sender prefix
** parv[1] = nickname
** if from server:
** parv[2] = hopcount
** parv[3] = timestamp
** new nick:
** parv[4] = username
** parv[5] = hostname
** parv[6] = info
** parv[0] = server
*/
int m_nick(cptr, sptr, parc, parv)
aClient *cptr, *sptr;
int parc;
char *parv[];
{
aClient *acptr, *server = NULL;
char nick[NICKLEN+2], *s;
Link *lp;
time_t lastnick = (time_t)0;
int differ = 1;
if (parc < 2)
{
sendto_one(sptr, err_str(ERR_NONICKNAMEGIVEN),
me.name, parv[0]);
return 0;
}
else if (IsServer(sptr) && parc < 7 ||
IsServer(cptr) && parc < 3)
{
sendto_one(sptr, err_str(ERR_NEEDMOREPARAMS),
me.name, parv[0], "NICK");
sendto_ops("bad NICK param count for %s from %s",
parv[1], get_client_name(cptr, FALSE));
return 0;
}
if (MyConnect(sptr) && (s = (char *)index(parv[1], '~')))
*s = '\0';
strncpyzt(nick, parv[1], NICKLEN+1);
/*
* if do_nick_name() returns a null name OR if the server sent a nick
* name and do_nick_name() changed it in some way (due to rules of nick
* creation) then reject it. If from a server and we reject it,
* and KILL it. -avalon 4/4/92
*/
if (do_nick_name(nick) == 0 ||
(IsServer(cptr) && strcmp(nick, parv[1])))
{
sendto_one(sptr, err_str(ERR_ERRONEUSNICKNAME),
me.name, parv[0], parv[1]);
if (IsServer(cptr))
{
ircstp->is_kill++;
sendto_ops("Bad Nick: %s From: %s %s",
parv[1], parv[0],
get_client_name(cptr, FALSE));
sendto_one(cptr, ":%s KILL %s :%s (%s <- %s[%s])",
me.name, parv[1], me.name, parv[1],
nick, cptr->name);
if (sptr != cptr) /* bad nick change */
{
sendto_serv_butone(cptr,
":%s KILL %s :%s (%s <- %s!%s@%s)",
me.name, parv[0], me.name,
get_client_name(cptr, FALSE),
parv[0],
sptr->user ? sptr->username : "",
sptr->user ? sptr->user->server->name :
cptr->name);
sptr->flags |= FLAGS_KILLED;
return exit_client(cptr, sptr, &me,"BadNick");
}
}
return 0;
}
/*
** Protocol 4 doesn't send the server as prefix, so it is possible
** the server doesn't exist (a lagged net.burst), in which case
** we simply need to ignore the NICK. Also when we got that server
** name (again) but from another direction. --Run
** This can be removed after all upgraded to 2.9.
*/
if (parc > 7 && (!(server = find_server(parv[6], NULL)) ||
server->from != cptr->from))
return 0;
/*
** Check against nick name collisions.
**
** Put this 'if' here so that the nesting goes nicely on the screen :)
** We check against server name list before determining if the nickname
** is present in the nicklist (due to the way the below for loop is
** constructed). -avalon
*/
if ((acptr = find_server(nick, NULL)))
if (MyConnect(sptr))
{
sendto_one(sptr, err_str(ERR_NICKNAMEINUSE), me.name,
BadPtr(parv[0]) ? "*" : parv[0], nick);
return 0; /* NICK message ignored */
}
/*
** acptr already has result from previous find_server()
*/
if (acptr)
{
/*
** We have a nickname trying to use the same name as
** a server. Send out a nick collision KILL to remove
** the nickname. As long as only a KILL is sent out,
** there is no danger of the server being disconnected.
** Ultimate way to jupiter a nick ? >;-). -avalon
*/
sendto_ops("Nick collision on %s(%s <- %s)",
sptr->name, acptr->from->name,
get_client_name(cptr, FALSE));
ircstp->is_kill++;
sendto_one(cptr, ":%s KILL %s :%s (%s <- %s)",
me.name, sptr->name, me.name, acptr->from->name,
/* NOTE: Cannot use get_client_name
** twice here, it returns static
** string pointer--the other info
** would be lost
*/
get_client_name(cptr, FALSE));
sptr->flags |= FLAGS_KILLED;
return exit_client(cptr, sptr, &me, "Nick/Server collision");
}
/*
** Refuse nick change if the last nick change was less
** then 30 seconds ago. This is intended to get rid of
** clone bots doing NICK FLOOD. -SeKs
** If someone didn't change their nick for more then 60 seconds
** however, allow to do two nick changes immedately after another
** before limiting the nick flood. -Run
*/
#ifdef NICK_DELAY
if (MyClient(cptr))
{
if(now < cptr->nextnick)
{
cptr->nextnick += 2;
sendto_one(cptr, err_str(ERR_NICKTOOFAST),
me.name, parv[0], parv[1], cptr->nextnick - now); /* Send error message */
sendto_prefix_one(cptr, cptr, ":%s NICK %s",
parv[0], parv[0]); /* bounce NICK to user */
return 0; /* ignore nick change! */
}
else
{
/* Limit total to 1 change per NICK_DELAY seconds: */
cptr->nextnick += NICK_DELAY;
/* However allow _maximal_ 1 extra consecutive nick change: */
if (cptr->nextnick < now)
cptr->nextnick = now;
}
}
#endif
if (!(acptr = find_client(nick, NULL)))
goto nickkilldone; /* No collisions, all clear... */
/*
** If acptr == sptr, then we have a client doing a nick
** change between *equivalent* nicknames as far as server
** is concerned (user is changing the case of his/her
** nickname or somesuch)
*/
if (acptr == sptr)
if (strcmp(acptr->name, nick) != 0)
/*
** Allows change of case in his/her nick
*/
goto nickkilldone; /* -- go and process change */
else
/*
** This is just ':old NICK old' type thing.
** Just forget the whole thing here. There is
** no point forwarding it to anywhere,
** especially since servers prior to this
** version would treat it as nick collision.
*/
return 0; /* NICK Message ignored */
/*
** Note: From this point forward it can be assumed that
** acptr != sptr (point to different client structures).
*/
/*
** If the older one is "non-person", the new entry is just
** allowed to overwrite it. Just silently drop non-person,
** and proceed with the nick. This should take care of the
** "dormant nick" way of generating collisions...
*/
if (IsUnknown(acptr) && MyConnect(acptr))
{
(void)exit_client(cptr, acptr, &me,
"Overridden by other sign on");
goto nickkilldone;
}
/*
** Decide, we really have a nick collision and deal with it
*/
if (!IsServer(cptr))
{
/*
** NICK is coming from local client connection. Just
** send error reply and ignore the command.
*/
sendto_one(sptr, err_str(ERR_NICKNAMEINUSE),
/* parv[0] is empty when connecting */
me.name, BadPtr(parv[0]) ? "*" : parv[0], nick);
return 0; /* NICK message ignored */
}
/*
** NICK was coming from a server connection.
** This means we have a race condition (two users signing on
** at the same time), or two net fragments reconnecting with
** the same nick.
** The latter can happen because two different users connected
** or because one and the same user switched server during a
** net break.
** If the TimeStamps are equal, we kill both (or only 'new'
** if it was a ":server NICK new ...").
** Otherwise we kill the youngest when user@host differ,
** or the oldest when they are the same.
** We treat user and ~user as different, because if it wasn't
** a faked ~user the AUTH wouldn't have added the '~'.
** --Run
**
*/
if (IsServer(sptr))
{
/*
** A new NICK being introduced by a neighbouring
** server (e.g. message type ":server NICK new ..." received)
*/
lastnick = atoi(parv[3]);
differ = (mycmp(acptr->user->username, parv[4]) ||
mycmp(acptr->user->host, parv[5]));
sendto_ops("Nick collision on %s (%s %d <- %s %d (%s user@host))",
acptr->name, acptr->from->name, acptr->lastnick,
get_client_name(cptr, FALSE), lastnick,
differ?"Different":"Same");
}
else
{
/*
** A NICK change has collided (e.g. message type ":old NICK new").
*/
lastnick = atoi(parv[2]);
differ = (mycmp(acptr->user->username, sptr->user->username) ||
mycmp(acptr->user->host, sptr->user->host));
sendto_ops("Nick change collision from %s to %s (%s %d <- %s %d)",
sptr->name, acptr->name, acptr->from->name,
acptr->lastnick, get_client_name(cptr, FALSE), lastnick);
}
/*
** Now remove (kill) the nick on our side if it is the youngest.
** If no timestamp was received, we ignore the incoming nick
** (and expect a KILL for our legit nick soon ):
** When the timestamps are equal we kill both nicks. --Run
** acptr->from != cptr should *always* be true (?).
*/
if (acptr->from != cptr)
{ if (differ && lastnick >= acptr->lastnick ||
!differ && lastnick <= acptr->lastnick)
{ if (!IsServer(sptr))
{ ircstp->is_kill++;
sendto_serv_butone(cptr, /* Kill old from outgoing servers */
":%s KILL %s :%s (%s <- %s (Nick collision))",
me.name, sptr->name, me.name,
acptr->from->name, get_client_name(cptr, FALSE));
sptr->flags |= FLAGS_KILLED;
(void)exit_client(cptr, sptr, &me,
"Nick collision (you're a ghost)");
}
if (lastnick != acptr->lastnick)
return 0; /* Ignore the NICK */
}
sendto_one(acptr, err_str(ERR_NICKCOLLISION),
me.name, acptr->name, nick); }
ircstp->is_kill++;
acptr->flags |= FLAGS_KILLED;
if (differ)
{
sendto_serv_butone(cptr, /* Kill our old from outgoing servers */
":%s KILL %s :%s (%s <- %s (older nick overruled))",
me.name, acptr->name, me.name,
acptr->from->name, get_client_name(cptr, FALSE));
(void)exit_client(cptr, acptr, &me,
"Nick collision (older nick overruled)");
}
else
{
sendto_serv_butone(cptr, /* Kill our old from outgoing servers */
":%s KILL %s :%s "
"(%s <- %s (nick collision from same user@host))",
me.name, acptr->name, me.name,
acptr->from->name, get_client_name(cptr, FALSE));
(void)exit_client(cptr, acptr, &me,
"Nick collision (You collided yourself)");
}
if (lastnick == acptr->lastnick) return 0;
nickkilldone:
if (IsServer(sptr))
{
/* A server introducing a new client, change source */
if (!server) /* Test not necessary when all upgraded to 2.9 */
server = sptr;
sptr = make_client(cptr);
add_client_to_list(sptr);
sptr->hopcount = atoi(parv[2]);
sptr->lastnick = atoi(parv[3]);
}
else if (sptr->name[0])
{
/*
** If the client belongs to me, then check to see
** if client is currently on any channels where it
** is currently banned. If so, do not allow the nick
** change to occur.
** Also set 'lastnick' to current time, if changed.
*/
if (MyClient(sptr))
for (lp = cptr->user->channel; lp; lp = lp->next)
if (can_send(cptr, lp->value.chptr) ==
MODE_BAN)
{
sendto_one(cptr,
err_str(ERR_BANNICKCHANGE),
me.name, parv[0],
lp->value.chptr->chname);
return 0;
}
/*
** Client just changing his/her nick. If he/she is
** on a channel, send note of change to all clients
** on that channel. Propagate notice to other servers.
*/
if (mycmp(parv[0], nick))
sptr->lastnick = (sptr == cptr) ? TStime(): atoi(parv[2]);
if (sptr->user)
{
sendto_common_channels(sptr, ":%s NICK :%s", parv[0], nick);
add_history(sptr);
sendto_serv_butone(cptr, ":%s NICK %s :%d",
parv[0], nick, sptr->lastnick);
#ifdef USE_SERVICES
check_services_butone(SERVICE_WANT_NICK, sptr,
":%s NICK %s :%d", parv[0], nick, sptr->lastnick);
#endif
#ifdef NPATH
note_nickchange(sptr, nick);
#endif
}
}
else
{
/* Client setting NICK the first time */
/* This had to be copied here to avoid problems.. */
(void)strcpy(sptr->name, nick);
/* If the client hasn't gotten a cookie-ping yet,
choose a cookie and send it. -record!jegelhof@cloud9.net */
if(!sptr->cookie)
{
while((!sptr->cookie) || (sptr->cookie==-1))
sptr->cookie=(ircrandom());
sendto_one(cptr, "PING :%lu", sptr->cookie);
}
if ((sptr->user) && (sptr->cookie==-1))
{ /*
** USER and PONG already received, now we have NICK.
** *NOTE* For servers "NICK" *must* precede the
** user message (giving USER before NICK is possible
** only for local client connection!). register_user
** may reject the client and call exit_client for it
** --must test this and exit m_nick too!!!
*/
sptr->lastnick = TStime(); /* Always local client */
if (register_user(cptr, sptr, nick,
sptr->user->username)
== CPTR_KILLED)
return CPTR_KILLED; }
}
/*
** Finally set new nick name.
*/
if (sptr->name[0])
(void)del_from_client_hash_table(sptr->name, sptr);
(void)strcpy(sptr->name, nick);
(void)add_to_client_hash_table(nick, sptr);
if (!IsServer(cptr) || sptr->user)
return 0;
sptr->user = make_user(sptr);
sptr->user->server = server;
server->serv->ghost = 0; /* :server NICK means end of net.burst */
if (parc>7)
/* This for compatibility with .U4 only */
strncpyzt(sptr->info, parv[7], sizeof(sptr->info));
else
strncpyzt(sptr->info, parv[6], sizeof(sptr->info));
strncpyzt(sptr->user->host, parv[5], sizeof(sptr->user->host));
return register_user(cptr, sptr, sptr->name, parv[4]);
}
/*
** m_message (used in m_private() and m_notice())
** the general function to deliver MSG's between users/channels
**
** parv[0] = sender prefix
** parv[1] = receiver list
** parv[2] = message text
**
** massive cleanup
** rev argv 6/91
**
*/
static int m_message(cptr, sptr, parc, parv, notice)
aClient *cptr, *sptr;
int parc;
char *parv[];
int notice;
{
Reg1 aClient *acptr;
Reg2 char *s;
aChannel *chptr;
char *nick, *server, *p, *cmd, *host;
if (notice)
{
if (check_registered(sptr))
return 0;
}
else if (check_registered_user(sptr))
return 0;
sptr->flags&=~FLAGS_TS8;
cmd = notice ? MSG_NOTICE : MSG_PRIVATE;
if (parc < 2 || *parv[1] == '\0')
{
sendto_one(sptr, err_str(ERR_NORECIPIENT),
me.name, parv[0], cmd);
return -1;
}
if (parc < 3 || *parv[2] == '\0')
{
sendto_one(sptr, err_str(ERR_NOTEXTTOSEND), me.name, parv[0]);
return -1;
}
if (MyConnect(sptr))
parv[1] = canonize(parv[1]);
for (p = NULL, nick = strtoken(&p, parv[1], ","); nick;
nick = strtoken(&p, NULL, ","))
{
/*
** nickname addressed?
*/
if ((acptr = find_person(nick, NULL)))
{
/*
** This part is almost literally copied from is_silenced(),
** it does the silence checking for NOTE notices.
*/
if (notice && IsServer(sptr) &&
!strncmp(parv[2], "Note from", 9))
{
Reg1 Link *lp;
char *sender, *p2;
if (acptr->user && (lp = acptr->user->silence) &&
(sender = strtoken(&p2, &parv[2][10], " ")))
{
for (; lp; lp = lp->next)
{
if (!matches(lp->value.cp, sender))
{
if (!IsMe(sptr))
{
sendto_one(sptr, ":%s SILENCE %s :%s",
acptr->name, sptr->name, lp->value.cp);
lp->flags=1;
}
return 0;
}
}
*p2 = ' ';
}
}
if (!is_silenced(sptr, acptr))
{
if (!notice && MyConnect(sptr) &&
acptr->user && acptr->user->away)
sendto_one(sptr, rpl_str(RPL_AWAY), me.name,
parv[0], acptr->name,
acptr->user->away);
sendto_prefix_one(acptr, sptr, ":%s %s %s :%s",
parv[0], cmd, nick, parv[2]);
}
continue;
}
/*
** channel msg?
*/
if ((chptr = find_channel(nick, NullChn)))
{
if (can_send(sptr, chptr) == 0)
sendto_channel_butone(cptr, sptr, chptr,
":%s %s %s :%s",
parv[0], cmd, nick,
parv[2]);
else if (!notice)
sendto_one(sptr, err_str(ERR_CANNOTSENDTOCHAN),
me.name, parv[0], nick);
continue;
}
/*
** the following two cases allow masks in NOTICEs
** (for OPERs only)
**
** Armin, 8Jun90 (gruner@informatik.tu-muenchen.de)
*/
if ((*nick == '$' || *nick == '#') && IsAnOper(sptr))
{
if (!(s = (char *)rindex(nick, '.')))
{
sendto_one(sptr, err_str(ERR_NOTOPLEVEL),
me.name, parv[0], nick);
continue;
}
while (*++s)
if (*s == '.' || *s == '*' || *s == '?')
break;
if (*s == '*' || *s == '?')
{
sendto_one(sptr, err_str(ERR_WILDTOPLEVEL),
me.name, parv[0], nick);
continue;
}
sendto_match_butone(IsServer(cptr) ? cptr : NULL,
sptr, nick + 1,
(*nick == '#') ? MATCH_HOST :
MATCH_SERVER,
":%s %s %s :%s", parv[0],
cmd, nick, parv[2]);
continue;
}
/*
** user[%host]@server addressed?
*/
if ((server = (char *)index(nick, '@')) &&
(acptr = find_server(server + 1, NULL)))
{
int count = 0;
/*
** Not destined for a user on me :-(
*/
if (!IsMe(acptr))
{
sendto_one(acptr,":%s %s %s :%s", parv[0],
cmd, nick, parv[2]);
continue;
}
*server = '\0';
if ((host = (char *)index(nick, '%')))
*host++ = '\0';
/*
** Look for users which match the destination host
** (no host == wildcard) and if one and one only is
** found connected to me, deliver message!
*/
acptr = find_userhost(nick, host, NULL, &count);
if (server)
*server = '@';
if (host)
*--host = '%';
if (acptr)
{
if (count == 1)
{
if (is_silenced(sptr, acptr))
continue;
sendto_prefix_one(acptr, sptr,
":%s %s %s :%s",
parv[0], cmd,
nick, parv[2]);
}
else if (!notice)
sendto_one(sptr,
err_str(ERR_TOOMANYTARGETS),
me.name, parv[0], nick);
}
if (acptr)
continue;
}
sendto_one(sptr, err_str(ERR_NOSUCHNICK), me.name,
parv[0], nick);
}
return 0;
}
/*
** m_private
** parv[0] = sender prefix
** parv[1] = receiver list
** parv[2] = message text
*/
int m_private(cptr, sptr, parc, parv)
aClient *cptr, *sptr;
int parc;
char *parv[];
{
return m_message(cptr, sptr, parc, parv, 0);
}
/*
** m_notice
** parv[0] = sender prefix
** parv[1] = receiver list
** parv[2] = notice text
*/
int m_notice(cptr, sptr, parc, parv)
aClient *cptr, *sptr;
int parc;
char *parv[];
{
return m_message(cptr, sptr, parc, parv, 1);
}
static void do_who(sptr, acptr, repchan)
aClient *sptr, *acptr;
aChannel *repchan;
{
char status[7];
int i = 0;
if (acptr->user->away)
status[i++] = 'G';
else
status[i++] = 'H';
if (IsAnOper(acptr))
status[i++] = '*';
if (repchan && is_chan_op(acptr, repchan))
status[i++] = '@';
else if (repchan && has_voice(acptr, repchan))
status[i++] = '+';
else if (repchan && is_zombie(acptr, repchan))
status[i++] = '!';
if (IsDeaf(acptr))
status[i++] = 'd';
if (IsAnOper(sptr))
{
if (IsInvisible(acptr))
status[i++] = 'i';
if (SendWallops(acptr))
status[i++] = 'w';
}
status[i] = '\0';
sendto_one(sptr, rpl_str(RPL_WHOREPLY), me.name, sptr->name,
(repchan) ? (repchan->chname) : "*", acptr->user->username,
acptr->user->host, acptr->user->server->name, acptr->name,
status, acptr->hopcount, acptr->info);
}
/*
** m_who
** parv[0] = sender prefix
** parv[1] = nickname mask list
** parv[2] = additional selection flag, only 'o' for now.
*/
int m_who(cptr, sptr, parc, parv)
aClient *cptr, *sptr;
int parc;
char *parv[];
{
Reg1 aClient *acptr;
Reg2 char *mask = parc > 1 ? parv[1] : NULL;
Reg3 Link *lp;
aChannel *chptr;
aChannel *mychannel;
char *channame = NULL, *s;
int oper = parc > 2 ? (*parv[2] == 'o' ): 0; /* Show OPERS only */
int member;
if (!BadPtr(mask))
{
if ((s = (char *)index(mask, ',')))
{
parv[1] = ++s;
(void)m_who(cptr, sptr, parc, parv);
}
clean_channelname(mask);
}
mychannel = NullChn;
if (sptr->user)
if ((lp = sptr->user->channel))
mychannel = lp->value.chptr;
/* Allow use of m_who without registering */
/*
** Following code is some ugly hacking to preserve the
** functions of the old implementation. (Also, people
** will complain when they try to use masks like "12tes*"
** and get people on channel 12 ;) --msa
*/
if (!mask || *mask == '\0')
mask = NULL;
else if (mask[1] == '\0' && mask[0] == '*')
{
mask = NULL;
if (mychannel)
channame = mychannel->chname;
}
else if (mask[1] == '\0' && mask[0] == '0') /* "WHO 0" for irc.el */
mask = NULL;
else
channame = mask;
(void)collapse(mask);
if (IsChannelName(channame))
{
/*
* List all users on a given channel
*/
chptr = find_channel(channame, NULL);
if (chptr)
{
member = IsMember(sptr, chptr);
if (member || !SecretChannel(chptr))
for (lp = chptr->members; lp; lp = lp->next)
{
if (oper && !IsAnOper(lp->value.cptr))
continue;
if (lp->value.cptr!=sptr &&
(lp->flags & CHFL_ZOMBIE))
continue;
if (lp->value.cptr!=sptr && IsInvisible(lp->value.cptr) && !member)
continue;
do_who(sptr, lp->value.cptr, chptr);
}
}
}
else for (acptr = client; acptr; acptr = acptr->next)
{
aChannel *ch2ptr = NULL;
int showperson, isinvis;
if (!IsPerson(acptr))
continue;
if (oper && !IsAnOper(acptr))
continue;
showperson = 0;
/* Allow opers to see local invisible users. --Ensor */
if (IsAnOper(sptr) && MyConnect(acptr))
showperson = 1;
#ifdef SHOW_ALL_INVISIBLE_USERS
else
/* Allow opers to see ALL invisible users. -- Niels */
if (IsOper(sptr))
showperson = 1;
#endif
/*
* Show user if they are on the same channel, or not
* invisible and on a non secret channel (if any).
* Do this before brute force match on all relevant fields
* since these are less cpu intensive (I hope :-) and should
* provide better/more shortcuts - avalon
*/
isinvis = acptr!=sptr && IsInvisible(acptr);
for (lp = acptr->user->channel; lp; lp = lp->next)
{
chptr = lp->value.chptr;
member = IsMember(sptr, chptr);
if (isinvis && !member)
continue;
if (is_zombie(acptr, chptr))
continue;
if (member || (!isinvis && ShowChannel(sptr, chptr)))
{
ch2ptr = chptr;
showperson = 1;
break;
}
if (HiddenChannel(chptr) && !SecretChannel(chptr) &&
!isinvis)
showperson = 1;
}
if (!acptr->user->channel && !isinvis)
showperson = 1;
/*
** This is brute force solution, not efficient...? ;(
** Show entry, if no mask or any of the fields match
** the mask. --msa
*/
if (showperson &&
(!mask ||
match(mask, acptr->name) == 0 ||
match(mask, acptr->user->username) == 0 ||
match(mask, acptr->user->host) == 0 ||
match(mask, acptr->user->server->name) == 0 ||
match(mask, acptr->info) == 0))
do_who(sptr, acptr, ch2ptr);
}
sendto_one(sptr, rpl_str(RPL_ENDOFWHO), me.name, parv[0],
BadPtr(mask) ? "*" : mask);
return 0;
}
/*
** m_whois
** parv[0] = sender prefix
** parv[1] = nickname masklist
*/
int m_whois(cptr, sptr, parc, parv)
aClient *cptr, *sptr;
int parc;
char *parv[];
{
Reg2 Link *lp;
Reg3 anUser *user;
aClient *acptr, *a2cptr;
aChannel *chptr;
char *nick, *tmp, *name;
char *p = NULL;
int found, len, mlen;
if (check_registered_user(sptr))
return 0;
if (parc < 2)
{
sendto_one(sptr, err_str(ERR_NONICKNAMEGIVEN),
me.name, parv[0]);
return 0;
}
if (parc > 2)
{
if (hunt_server(cptr,sptr,":%s WHOIS %s :%s", 1,parc,parv) !=
HUNTED_ISME)
return 0;
parv[1] = parv[2];
}
for (tmp = parv[1]; (nick = strtoken(&p, tmp, ",")); tmp = NULL)
{
int invis, showperson, member, wilds;
found = 0;
(void)collapse(nick);
wilds = (index(nick, '?') || index(nick, '*'));
/*
** We're no longer allowing remote users to generate
** requests with wildcards.
*/
if (!MyConnect(sptr) && wilds)
continue;
for (acptr = client; (acptr = next_client(acptr, nick));
acptr = acptr->next)
{
if (IsServer(acptr) || IsPing(acptr))
continue;
/*
* I'm always last :-) and acptr->next == NULL!!
*/
if (IsMe(acptr))
break;
/*
* 'Rules' established for sending a WHOIS reply:
*
* - if wildcards are being used dont send a reply if
* the querier isnt any common channels and the
* client in question is invisible and wildcards are
* in use (allow exact matches only);
*
* - only send replies about common or public channels
* the target user(s) are on;
*/
user = acptr->user;
name = (!*acptr->name) ? "?" : acptr->name;
invis = acptr!=sptr && IsInvisible(acptr);
member = (user && user->channel) ? 1 : 0;
showperson = (wilds && !invis && !member) || !wilds;
if (user)
for (lp = user->channel; lp; lp = lp->next)
{
chptr = lp->value.chptr;
member = IsMember(sptr, chptr);
if (invis && !member)
continue;
if (is_zombie(acptr, chptr))
continue;
if (member || (!invis && PubChannel(chptr)))
{
showperson = 1;
break;
}
if (!invis && HiddenChannel(chptr) &&
!SecretChannel(chptr))
showperson = 1;
}
if (!showperson)
continue;
if (user)
{
a2cptr = user->server;
sendto_one(sptr, rpl_str(RPL_WHOISUSER), me.name,
parv[0], name,
user->username, user->host, acptr->info);
}
else
{
a2cptr = &me;
sendto_one(sptr, rpl_str(RPL_WHOISUSER), me.name,
parv[0], name, "<unknown>", "<unknown>",
"<unknown>");
}
found = 1;
if (user)
{
mlen = strlen(me.name) + strlen(parv[0]) + 12 +
strlen(name);
for (len = 0, *buf = '\0', lp = user->channel; lp;
lp = lp->next)
{
chptr = lp->value.chptr;
if (ShowChannel(sptr, chptr) &&
(acptr==sptr || !is_zombie(acptr, chptr)))
{
if (len + strlen(chptr->chname) + mlen
> BUFSIZE - 5)
{
sendto_one(sptr,
":%s %d %s %s :%s",
me.name,
RPL_WHOISCHANNELS,
parv[0], name, buf);
*buf = '\0';
len = 0;
}
if (IsDeaf(acptr))
*(buf + len++) = '-';
if (is_chan_op(acptr, chptr))
*(buf + len++) = '@';
else if (has_voice(acptr, chptr))
*(buf + len++) = '+';
else if (is_zombie(acptr, chptr))
*(buf + len++) = '!';
if (len)
*(buf + len) = '\0';
(void)strcpy(buf + len, chptr->chname);
len += strlen(chptr->chname);
(void)strcat(buf + len, " ");
len++;
}
}
if (buf[0] != '\0')
sendto_one(sptr, rpl_str(RPL_WHOISCHANNELS),
me.name, parv[0], name, buf);
}
sendto_one(sptr, rpl_str(RPL_WHOISSERVER), me.name,
parv[0], name, a2cptr->name, a2cptr->info);
if (user)
{
if (user->away)
sendto_one(sptr, rpl_str(RPL_AWAY), me.name,
parv[0], name, user->away);
if (IsAnOper(acptr))
sendto_one(sptr, rpl_str(RPL_WHOISOPERATOR),
me.name, parv[0], name);
if (MyConnect(acptr))
sendto_one(sptr, rpl_str(RPL_WHOISIDLE), me.name,
parv[0], name, now - user->last,
acptr->firsttime);
}
}
if (!found)
sendto_one(sptr, err_str(ERR_NOSUCHNICK),
me.name, parv[0], nick);
if (p)
p[-1] = ',';
}
sendto_one(sptr, rpl_str(RPL_ENDOFWHOIS), me.name, parv[0], parv[1]);
return 0;
}
/*
** m_user
** parv[0] = sender prefix
** parv[1] = username (login name, account)
** parv[2] = unused
** parv[3] = unused
** parv[4] = users real name info
*/
int m_user(cptr, sptr, parc, parv)
aClient *cptr, *sptr;
int parc;
char *parv[];
{
#define UFLAGS (FLAGS_INVISIBLE|FLAGS_WALLOP|FLAGS_SERVNOTICE)
char *username, *host, *server, *realname;
anUser *user;
if (IsServer(cptr))
return 0;
if (parc > 2 && (username = (char *)index(parv[1],'@')))
*username = '\0';
if (parc < 5 || *parv[1] == '\0' || *parv[2] == '\0' ||
*parv[3] == '\0' || *parv[4] == '\0')
{
sendto_one(sptr, err_str(ERR_NEEDMOREPARAMS),
me.name, parv[0], "USER");
return 0;
}
/* Copy parameters into better documenting variables */
username = (parc < 2 || BadPtr(parv[1])) ? "<bad-boy>" : parv[1];
host = (parc < 3 || BadPtr(parv[2])) ? "<nohost>" : parv[2];
server = (parc < 4 || BadPtr(parv[3])) ? "<noserver>" : parv[3];
realname = (parc < 5 || BadPtr(parv[4])) ? "<bad-realname>" : parv[4];
user = make_user(sptr);
if (!IsUnknown(sptr))
{
sendto_one(sptr, err_str(ERR_ALREADYREGISTRED),
me.name, parv[0]);
return 0;
}
sptr->flags |= (UFLAGS & atoi(host));
user->server = &me;
strncpyzt(sptr->info, realname, sizeof(sptr->info));
if ((sptr->name[0]) && (sptr->cookie==-1))
/* NICK and PONG already received, now we have USER... */
return register_user(cptr, sptr, sptr->name, username);
else
{
strncpyzt(sptr->user->username, username, USERLEN+1);
strncpyzt(user->host, host, sizeof(user->host));
}
return 0;
}
/*
** m_quit
** parv[0] = sender prefix
** parv[1] = comment
*/
int m_quit(cptr, sptr, parc, parv)
aClient *cptr, *sptr;
int parc;
char *parv[];
{
register char *comment = (parc > 1 && parv[1]) ? parv[1] : cptr->name;
if (MyClient(sptr))
if (!strncmp("Local Kill", comment, 10) ||
!strncmp(comment, "Killed", 6))
comment = parv[0];
if (strlen(comment) > (size_t) TOPICLEN)
comment[TOPICLEN] = '\0';
return IsServer(sptr) ? 0 : exit_client(cptr, sptr, sptr, comment);
}
/*
** m_kill
** parv[0] = sender prefix
** parv[1] = kill victim
** parv[2] = kill path
*/
int m_kill(cptr, sptr, parc, parv)
aClient *cptr, *sptr;
int parc;
char *parv[];
{
aClient *acptr;
char *inpath = get_client_name(cptr,FALSE);
char *user, *path, *killer;
int chasing = 0;
if (parc < 2 || *parv[1] == '\0')
{
sendto_one(sptr, err_str(ERR_NEEDMOREPARAMS),
me.name, parv[0], "KILL");
return 0;
}
user = parv[1];
path = parv[2]; /* Either defined or NULL (parc >= 2!!) */
#ifdef OPER_KILL
if (!IsPrivileged(cptr))
{
sendto_one(sptr, err_str(ERR_NOPRIVILEGES), me.name, parv[0]);
return 0;
}
#else
if (!IsServer(cptr))
{
sendto_one(sptr, err_str(ERR_NOPRIVILEGES), me.name, parv[0]);
return 0;
}
#endif
if (IsAnOper(cptr))
{
if (BadPtr(path))
{
sendto_one(sptr, err_str(ERR_NEEDMOREPARAMS),
me.name, parv[0], "KILL");
return 0;
}
if (strlen(path) > (size_t) TOPICLEN)
path[TOPICLEN] = '\0';
}
if (!(acptr = find_client(user, NULL)))
{
/*
** If the user has recently changed nick, we automaticly
** rewrite the KILL for this new nickname--this keeps
** servers in synch when nick change and kill collide
*/
if (!(acptr = get_history(user, (long)KILLCHASETIMELIMIT)))
{
sendto_one(sptr, err_str(ERR_NOSUCHNICK),
me.name, parv[0], user);
return 0;
}
sendto_one(sptr,":%s NOTICE %s :KILL changed from %s to %s",
me.name, parv[0], user, acptr->name);
chasing = 1;
}
if (!MyConnect(acptr) && IsLocOp(cptr))
{
sendto_one(sptr, err_str(ERR_NOPRIVILEGES), me.name, parv[0]);
return 0;
}
if (IsServer(acptr) || IsMe(acptr))
{
sendto_one(sptr, err_str(ERR_CANTKILLSERVER),
me.name, parv[0]);
return 0;
}
#ifdef LOCAL_KILL_ONLY
if (MyConnect(sptr) && !MyConnect(acptr))
{
sendto_one(sptr, ":%s NOTICE %s :Nick %s isnt on your server",
me.name, parv[0], acptr->name);
return 0;
}
#endif
if (!IsServer(cptr))
{
/*
** The kill originates from this server, initialize path.
** (In which case the 'path' may contain user suplied
** explanation ...or some nasty comment, sigh... >;-)
**
** ...!operhost!oper
** ...!operhost!oper (comment)
*/
if (IsUnixSocket(cptr)) /* Don't use get_client_name syntax */
inpath = me.sockhost;
else
inpath = cptr->sockhost;
if (!BadPtr(path))
{
(void)sprintf(buf, "%s%s (%s)",
cptr->name, IsOper(sptr) ? "" : "(L)", path);
path = buf;
}
else
path = cptr->name;
}
else if (BadPtr(path))
path = "*no-path*"; /* Bogus server sending??? */
/*
** Notify all *local* opers about the KILL (this includes the one
** originating the kill, if from this server--the special numeric
** reply message is not generated anymore).
**
** Note: "acptr->name" is used instead of "user" because we may
** have changed the target because of the nickname change.
*/
if (IsLocOp(sptr) && !MyConnect(acptr))
{
sendto_one(sptr, err_str(ERR_NOPRIVILEGES), me.name, parv[0]);
return 0;
}
sendto_ops("Received KILL message for %s. From %s Path: %s!%s",
acptr->name, parv[0], inpath, path);
#if defined(USE_SYSLOG) && defined(SYSLOG_KILL)
if (MyClient(acptr))
{/* get more infos when your local clients are killed -- _dl*/
if (IsServer(sptr))
syslog(LOG_DEBUG,
"A local client %s!%s@%s KILLED from %s [%s] Path: %s!%s)",
acptr->name, acptr->user->username, acptr->user->host,
parv[0],sptr->name,inpath,path);
else
syslog(LOG_DEBUG,
"A local client %s!%s@%s KILLED by %s [%s!%s@%s] (%s!%s)",
acptr->name,acptr->user->username,acptr->user->host,
parv[0],sptr->name,sptr->user->username,sptr->user->host,
inpath,path);
}
else if (IsOper(sptr))
syslog(LOG_DEBUG,"KILL From %s For %s Path %s!%s",
parv[0], acptr->name, inpath, path);
#endif
/*
** And pass on the message to other servers. Note, that if KILL
** was changed, the message has to be sent to all links, also
** back.
** Suicide kills are NOT passed on --SRB
*/
if (!MyConnect(acptr) || !MyConnect(sptr) || !IsAnOper(sptr))
{
sendto_serv_butone(cptr, ":%s KILL %s :%s!%s",
parv[0], acptr->name, inpath, path);
if (chasing && IsServer(cptr))
sendto_one(cptr, ":%s KILL %s :%s!%s",
me.name, acptr->name, inpath, path);
acptr->flags |= FLAGS_KILLED;
}
#ifdef USE_SERVICES
check_services_butone(SERVICE_WANT_KILL, sptr, ":%s KILL %s :%s!%s",
parv[0], acptr->name, inpath, path);
#endif
/*
** Tell the victim she/he has been zapped, but *only* if
** the victim is on current server--no sense in sending the
** notification chasing the above kill, it won't get far
** anyway (as this user don't exist there any more either)
*/
if (MyConnect(acptr))
sendto_prefix_one(acptr, sptr,":%s KILL %s :%s!%s",
parv[0], acptr->name, inpath, path);
/*
** Set FLAGS_KILLED. This prevents exit_one_client from sending
** the unnecessary QUIT for this. (This flag should never be
** set in any other place)
*/
if (MyConnect(acptr) && MyConnect(sptr) && IsAnOper(sptr))
(void)sprintf(buf2, "Local kill by %s (%s)", sptr->name,
BadPtr(parv[2]) ? sptr->name : parv[2]);
else
{
if ((killer = index(path, ' ')))
{
while (*killer && *killer != '!')
killer--;
if (!*killer)
killer = path;
else
killer++;
}
else
killer = path;
(void)sprintf(buf2, "Killed (%s)", killer);
}
return exit_client(cptr, acptr, sptr, buf2);
}
/***********************************************************************
* m_away() - Added 14 Dec 1988 by jto.
* Not currently really working, I don't like this
* call at all...
*
* ...trying to make it work. I don't like it either,
* but perhaps it's worth the load it causes to net.
* This requires flooding of the whole net like NICK,
* USER, MODE, etc messages... --msa
***********************************************************************/
/*
** m_away
** parv[0] = sender prefix
** parv[1] = away message
*/
int m_away(cptr, sptr, parc, parv)
aClient *cptr, *sptr;
int parc;
char *parv[];
{
Reg1 char *away, *awy2 = parv[1];
if (check_registered_user(sptr))
return 0;
away = sptr->user->away;
if (parc < 2 || !*awy2)
{
/* Marking as not away */
if (away)
{
MyFree(away);
sptr->user->away = NULL;
}
sendto_serv_butone(cptr, ":%s AWAY", parv[0]);
if (MyConnect(sptr))
sendto_one(sptr, rpl_str(RPL_UNAWAY),
me.name, parv[0]);
#ifdef USE_SERVICES
check_services_butonee(SERVICE_WANT_AWAY, ":%s AWAY", parv[0]);
#endif
return 0;
}
/* Marking as away */
if (strlen(awy2) > (size_t) TOPICLEN)
awy2[TOPICLEN] = '\0';
sendto_serv_butone(cptr, ":%s AWAY :%s", parv[0], awy2);
#ifdef USE_SERVICES
check_services_butonee(SERVICE_WANT_AWAY, ":%s AWAY :%s",
parv[0], parv[1]);
#endif
if (away)
away = (char *)MyRealloc(away, strlen(awy2)+1);
else
away = (char *)MyMalloc(strlen(awy2)+1);
sptr->user->away = away;
(void)strcpy(away, awy2);
if (MyConnect(sptr))
sendto_one(sptr, rpl_str(RPL_NOWAWAY), me.name, parv[0]);
return 0;
}
/*
** m_ping
** parv[0] = sender prefix
** parv[1] = origin
** parv[2] = destination
*/
int m_ping(cptr, sptr, parc, parv)
aClient *cptr, *sptr;
int parc;
char *parv[];
{
aClient *acptr;
char *origin, *destination;
if (parc < 2 || *parv[1] == '\0')
{
sendto_one(sptr, err_str(ERR_NOORIGIN), me.name, parv[0]);
return 0;
}
origin = parv[1];
destination = parv[2]; /* Will get NULL or pointer (parc >= 2!!) */
acptr = find_client(origin, NULL);
if (!acptr)
acptr = find_server(origin, NULL);
if (acptr && acptr != sptr)
origin = cptr->name;
if (!BadPtr(destination) && mycmp(destination, me.name) != 0)
{
if ((acptr = find_server(destination, NULL)))
sendto_one(acptr,":%s PING %s :%s", parv[0],
origin, destination);
else
{
sendto_one(sptr, err_str(ERR_NOSUCHSERVER),
me.name, parv[0], destination);
return 0;
}
}
else
sendto_one(sptr,":%s PONG %s :%s", me.name,
(destination) ? destination : me.name, origin);
return 0;
}
/*
** m_pong
** parv[0] = sender prefix
** parv[1] = origin
** parv[2] = destination
*/
int m_pong(cptr, sptr, parc, parv)
aClient *cptr, *sptr;
int parc;
char *parv[];
{
aClient *acptr;
char *origin, *destination;
if (MyClient(sptr))
return 0;
/* Check to see if this is a PONG :cookie reply from an
unregistered user. If so, process it. -record */
if((!IsRegistered(sptr)) && (sptr->cookie!=0) &&
(sptr->cookie!=-1) && (parc>1))
{
if(strtoul(parv[parc-1],NULL,10)==sptr->cookie)
{
sptr->cookie=-1;
if((sptr->user) && (sptr->name[0])) /* NICK and USER OK */
return register_user(cptr, sptr, sptr->name,
sptr->user->username);
}
else
sendto_one(sptr,
":%s %d %s :To connect, type /QUOTE PONG %lu",
me.name, ERR_BADPING, sptr->name,
sptr->cookie);
return 0;
}
if (parc < 2 || *parv[1] == '\0')
{
sendto_one(sptr, err_str(ERR_NOORIGIN), me.name, parv[0]);
return 0;
}
origin = parv[1];
destination = parv[2];
cptr->flags &= ~FLAGS_PINGSENT;
sptr->flags &= ~FLAGS_PINGSENT;
if (!BadPtr(destination) && mycmp(destination, me.name) != 0)
{
if ((acptr = find_client(destination, NULL)) ||
(acptr = find_server(destination, NULL)))
sendto_one(acptr,":%s PONG %s %s",
parv[0], origin, destination);
else
{
sendto_one(sptr, err_str(ERR_NOSUCHSERVER),
me.name, parv[0], destination);
return 0;
}
}
#ifdef DEBUGMODE
else
Debug((DEBUG_NOTICE, "PONG: %s %s", origin,
destination ? destination : "*"));
#endif
return 0;
}
/*
** m_oper
** parv[0] = sender prefix
** parv[1] = oper name
** parv[2] = oper password
*/
int m_oper(cptr, sptr, parc, parv)
aClient *cptr, *sptr;
int parc;
char *parv[];
{
aConfItem *aconf;
char *name, *password, *encr;
#ifdef CRYPT_OPER_PASSWORD
char salt[3];
extern char *crypt();
#endif /* CRYPT_OPER_PASSWORD */
if (check_registered_user(sptr))
return 0;
name = parc > 1 ? parv[1] : NULL;
password = parc > 2 ? parv[2] : NULL;
if (!IsServer(cptr) && (BadPtr(name) || BadPtr(password)))
{
sendto_one(sptr, err_str(ERR_NEEDMOREPARAMS),
me.name, parv[0], "OPER");
return 0;
}
/* if message arrived from server, trust it, and set to oper */
if ((IsServer(cptr) || IsMe(cptr)) && !IsOper(sptr))
{
sptr->flags |= FLAGS_OPER;
sendto_serv_butone(cptr, ":%s MODE %s :+o", parv[0], parv[0]);
if (IsMe(cptr))
sendto_one(sptr, rpl_str(RPL_YOUREOPER),
me.name, parv[0]);
#ifdef USE_SERVICES
check_services_butone(SERVICE_WANT_OPER, sptr,
":%s MODE %s :+o", parv[0], parv[0]);
#endif
#ifdef NPATH
note_oper(sptr);
#endif
return 0;
}
else if (IsOper(sptr))
{
if (MyConnect(sptr))
sendto_one(sptr, rpl_str(RPL_YOUREOPER),
me.name, parv[0]);
return 0;
}
if (!(aconf = find_conf_exact(name, sptr->username, sptr->sockhost,
CONF_OPS)) &&
!(aconf = find_conf_exact(name, sptr->username,
inetntoa((char *)&cptr->ip), CONF_OPS)))
{
sendto_one(sptr, err_str(ERR_NOOPERHOST), me.name, parv[0]);
sendto_realops("Failed OPER attempt by %s (%s@%s)",
parv[0], sptr->user->username, sptr->sockhost);
return 0;
}
#ifdef CRYPT_OPER_PASSWORD
/* use first two chars of the password they send in as salt */
/* passwd may be NULL. Head it off at the pass... */
salt[0] = '\0';
if (password && aconf->passwd)
{
salt[0] = aconf->passwd[0];
salt[1] = aconf->passwd[1];
salt[2] = '\0';
encr = crypt(password, salt);
}
else
encr = "";
#else
encr = password;
#endif /* CRYPT_OPER_PASSWORD */
if ((aconf->status & CONF_OPS) &&
StrEq(encr, aconf->passwd) && !attach_conf(sptr, aconf))
{
int old = (sptr->flags & ALL_UMODES);
char *s;
s = index(aconf->host, '@');
*s++ = '\0';
#ifdef OPER_REMOTE
if (aconf->status == CONF_LOCOP) {
#else
if ((matches(s,me.sockhost) && !IsLocal(sptr)) ||
aconf->status == CONF_LOCOP) {
#endif
SetLocOp(sptr);
ClearOper(sptr);
} else { /* prevent someone from being both oper and local oper */
SetOper(sptr);
sptr->flags &= ~FLAGS_LOCOP;
}
*--s = '@';
sendto_ops("%s (%s@%s) is now operator (%c)", parv[0],
sptr->user->username, sptr->sockhost,
IsOper(sptr) ? 'O' : 'o');
sptr->flags |= (FLAGS_SERVNOTICE|FLAGS_WALLOP);
send_umode_out(cptr, sptr, old);
sendto_one(sptr, rpl_str(RPL_YOUREOPER), me.name, parv[0]);
#if !defined(CRYPT_OPER_PASSWORD) && (defined(FNAME_OPERLOG) ||\
(defined(USE_SYSLOG) && defined(SYSLOG_OPER)))
encr = "";
#endif
#if defined(USE_SYSLOG) && defined(SYSLOG_OPER)
syslog(LOG_INFO, "OPER (%s) (%s) by (%s!%s@%s)",
name, encr,
parv[0], sptr->user->username, sptr->sockhost);
#endif
#ifdef FNAME_OPERLOG
{
int logfile;
/*
* This conditional makes the logfile active only after
* it's been created - thus logging can be turned off by
* removing the file.
*
* stop NFS hangs...most systems should be able to open a
* file in 3 seconds. -avalon (curtesy of wumpus)
*/
(void)alarm(3);
if (IsPerson(sptr) &&
(logfile = open(FNAME_OPERLOG, O_WRONLY|O_APPEND)) != -1)
{
(void)alarm(0);
(void)sprintf(buf, "%s OPER (%s) (%s) by (%s!%s@%s)\n",
myctime(now), name, encr,
parv[0], sptr->user->username,
sptr->sockhost);
(void)alarm(3);
(void)write(logfile, buf, strlen(buf));
(void)alarm(0);
(void)close(logfile);
}
(void)alarm(0);
/* Modification by pjg */
}
#endif
#ifdef USE_SERVICES
check_services_butone(SERVICE_WANT_OPER, sptr,
":%s MODE %s :+o", parv[0], parv[0]);
#endif
#ifdef NPATH
note_oper(sptr);
#endif
}
else
{
(void)detach_conf(sptr, aconf);
sendto_one(sptr,err_str(ERR_PASSWDMISMATCH),me.name, parv[0]);
sendto_realops("Failed OPER attempt by %s (%s@%s)",
parv[0], sptr->user->username, sptr->sockhost);
}
return 0;
}
/***************************************************************************
* m_pass() - Added Sat, 4 March 1989
***************************************************************************/
/*
** m_pass
** parv[0] = sender prefix
** parv[1] = password
*/
int m_pass(cptr, sptr, parc, parv)
aClient *cptr, *sptr;
int parc;
char *parv[];
{
char *password = parc > 1 ? parv[1] : NULL;
if (BadPtr(password))
{
sendto_one(cptr, err_str(ERR_NEEDMOREPARAMS),
me.name, parv[0], "PASS");
return 0;
}
if (!MyConnect(sptr) || (!IsUnknown(cptr) && !IsHandshake(cptr)))
{
sendto_one(cptr, err_str(ERR_ALREADYREGISTRED),
me.name, parv[0]);
return 0;
}
strncpyzt(cptr->passwd, password, sizeof(cptr->passwd));
return 0;
}
/*
* m_userhost added by Darren Reed 13/8/91 to aid clients and reduce
* the need for complicated requests like WHOIS. It returns user/host
* information only (no spurious AWAY labels or channels).
*/
int m_userhost(cptr, sptr, parc, parv)
aClient *cptr, *sptr;
int parc;
char *parv[];
{
char *p = NULL;
aClient *acptr;
Reg1 char *s;
Reg2 int i, len;
if (check_registered(sptr))
return 0;
if (parc > 2)
(void)m_userhost(cptr, sptr, parc-1, parv+1);
if (parc < 2)
{
sendto_one(sptr, err_str(ERR_NEEDMOREPARAMS),
me.name, parv[0], "USERHOST");
return 0;
}
(void)sprintf(buf, rpl_str(RPL_USERHOST), me.name, parv[0]);
len = strlen(buf);
*buf2 = '\0';
for (i = 5, s = strtoken(&p, parv[1], " "); i && s;
s = strtoken(&p, (char *)NULL, " "), i--)
if ((acptr = find_person(s, NULL)))
{
if (*buf2)
(void)strcat(buf, " ");
(void)sprintf(buf2, "%s%s=%c%s@%s",
acptr->name,
IsAnOper(acptr) ? "*" : "",
(acptr->user->away) ? '-' : '+',
acptr->user->username,
acptr->user->host);
(void)strncat(buf, buf2, sizeof(buf) - len);
len += strlen(buf2);
}
sendto_one(sptr, "%s", buf);
return 0;
}
/*
* m_ison added by Darren Reed 13/8/91 to act as an efficent user indicator
* with respect to cpu/bandwidth used. Implemented for NOTIFY feature in
* clients. Designed to reduce number of whois requests. Can process
* nicknames in batches as long as the maximum buffer length.
*
* format:
* ISON :nicklist
*/
int m_ison(cptr, sptr, parc, parv)
aClient *cptr, *sptr;
int parc;
char *parv[];
{
Reg1 aClient *acptr;
Reg2 char *s, **pav = parv;
Reg3 int len;
char *p = NULL;
if (check_registered(sptr))
return 0;
if (parc < 2)
{
sendto_one(sptr, err_str(ERR_NEEDMOREPARAMS),
me.name, parv[0], "ISON");
return 0;
}
(void)sprintf(buf, rpl_str(RPL_ISON), me.name, *parv);
len = strlen(buf);
for (s = strtoken(&p, *++pav, " "); s; s = strtoken(&p, NULL, " "))
if ((acptr = find_person(s, NULL)))
{
(void)strncat(buf, acptr->name, sizeof(buf) - len);
len += strlen(acptr->name);
(void)strncat(buf, " ", sizeof(buf) - len);
len++;
}
sendto_one(sptr, "%s", buf);
return 0;
}
#if !defined(NPATH)
int m_note(cptr, sptr, parc, parv)
aClient *cptr, *sptr;
int parc;
char *parv[];
{
Reg1 aClient *acptr;
Reg2 int i = 0;
int wilds = 0;
char *c, nbuf[50];
if (parc < 2)
return 0;
c = parv[1];
while (*c && *c != ' ' && i < 49)
{
if (*c == '*' || *c == '?')
wilds = 1;
nbuf[i++] = *c++;
}
nbuf[i] = 0;
if (wilds && (IsOper(sptr) || IsServer(sptr)))
sendto_serv_butone(cptr, ":%s NOTE :%s", parv[0], parv[1]);
else
for (acptr = client; acptr; acptr = acptr->next)
if (IsServer(acptr) && acptr != cptr
&& !mycmp(nbuf, acptr->name))
{
sendto_one(acptr, ":%s NOTE :%s",
parv[0], parv[1]);
break;
}
return 0;
}
#endif
static int user_modes[] = { FLAGS_OPER, 'o',
FLAGS_LOCOP, 'O',
FLAGS_INVISIBLE, 'i',
FLAGS_WALLOP, 'w',
FLAGS_SERVNOTICE, 's',
FLAGS_DEAF, 'd',
FLAGS_NOKICK, 'k',
0, 0 };
/*
* m_umode() added 15/10/91 By Darren Reed.
* parv[0] - sender
* parv[1] - username to change mode for
* parv[2] - modes to change
*/
int m_umode(cptr, sptr, parc, parv)
aClient *cptr, *sptr;
int parc;
char *parv[];
{
Reg1 int flag;
Reg2 int *s;
Reg3 char **p, *m;
aClient *acptr;
int what, setflags;
if (check_registered_user(sptr))
return 0;
what = MODE_ADD;
if (parc < 2)
{
sendto_one(sptr, err_str(ERR_NEEDMOREPARAMS),
me.name, parv[0], "MODE");
return 0;
}
if (!(acptr = find_person(parv[1], NULL)))
{
if (MyConnect(sptr))
sendto_one(sptr, err_str(ERR_NOSUCHCHANNEL),
me.name, parv[0], parv[1]);
return 0;
}
if (IsServer(sptr) || sptr != acptr)
{
if (IsServer(cptr))
sendto_ops_butone(NULL, &me,
":%s WALLOPS :MODE for User %s From %s!%s",
me.name, parv[1],
get_client_name(cptr, FALSE), sptr->name);
else
sendto_one(sptr, err_str(ERR_USERSDONTMATCH),
me.name, parv[0]);
return 0;
}
if (parc < 3)
{
m = buf;
*m++ = '+';
for (s = user_modes; (flag = *s) && (m - buf < BUFSIZE - 4);
s += 2)
if (sptr->flags & flag)
*m++ = (char)(*(s+1));
*m = '\0';
sendto_one(sptr, rpl_str(RPL_UMODEIS),
me.name, parv[0], buf);
return 0;
}
/* find flags already set for user */
setflags = 0;
for (s = user_modes; (flag = *s); s += 2)
if (sptr->flags & flag)
setflags |= flag;
/*
* parse mode change string(s)
*/
for (p = &parv[2]; p && *p; p++ )
for (m = *p; *m; m++)
switch(*m)
{
case '+' :
what = MODE_ADD;
break;
case '-' :
what = MODE_DEL;
break;
/* we may not get these,
* but they shouldnt be in default
*/
case ' ' :
case '\n' :
case '\r' :
case '\t' :
break;
default :
for (s = user_modes; (flag = *s); s += 2)
if (*m == (char)(*(s+1)))
{
if (what == MODE_ADD)
sptr->flags |= flag;
else if ((flag&(FLAGS_OPER|FLAGS_LOCOP)))
sptr->flags &= ~(FLAGS_OPER|FLAGS_LOCOP);
/* allow either -o or -O to reset all
operator status's... */
else
sptr->flags &= ~flag;
break;
}
if (flag == 0 && MyConnect(sptr))
sendto_one(sptr,
err_str(ERR_UMODEUNKNOWNFLAG),
me.name, parv[0]);
break;
}
/*
* stop users making themselves operators too easily
*/
if (!(setflags & FLAGS_OPER) && IsOper(sptr) && !IsServer(cptr))
ClearOper(sptr);
if (!(setflags & FLAGS_LOCOP) && IsLocOp(sptr) && !IsServer(cptr))
sptr->flags &= ~FLAGS_LOCOP;
if ((setflags & (FLAGS_OPER|FLAGS_LOCOP)) && !IsAnOper(sptr) &&
MyConnect(sptr))
det_confs_butmask(sptr, CONF_CLIENT & ~CONF_OPS);
/* new umode; servers can set it, local users cannot;
prevents users from /kick'ing or /mode -o'ing */
if (!(setflags & FLAGS_NOKICK) && !IsServer(cptr))
sptr->flags &= ~FLAGS_NOKICK;
#ifdef USE_SERVICES
if (IsOper(sptr) && !(setflags & FLAGS_OPER))
check_services_butone(SERVICE_WANT_OPER, sptr,
":%s MODE %s :+o", parv[0], parv[0]);
else if (!IsOper(sptr) && (setflags & FLAGS_OPER))
check_services_butone(SERVICE_WANT_OPER, sptr,
":%s MODE %s :-o", parv[0], parv[0]);
#endif
#ifdef NPATH
if (IsOper(sptr) && !(setflags & FLAGS_OPER)) note_oper(sptr);
#endif
/*
* compare new flags with old flags and send string which
* will cause servers to update correctly.
*/
send_umode_out(cptr, sptr, setflags);
return 0;
}
/*
* send the MODE string for user (user) to connection cptr
* -avalon
*/
void send_umode(cptr, sptr, old, sendmask, umode_buf)
aClient *cptr, *sptr;
int old, sendmask;
char *umode_buf;
{
Reg1 int *s, flag;
Reg2 char *m;
int what = MODE_NULL;
/*
* build a string in umode_buf to represent the change in the user's
* mode between the new (sptr->flag) and 'old'.
*/
m = umode_buf;
*m = '\0';
for (s = user_modes; (flag = *s); s += 2)
{
if (MyClient(sptr) && !(flag & sendmask))
continue;
if ((flag & old) && !(sptr->flags & flag))
{
if (what == MODE_DEL)
*m++ = *(s+1);
else
{
what = MODE_DEL;
*m++ = '-';
*m++ = *(s+1);
}
}
else if (!(flag & old) && (sptr->flags & flag))
{
if (what == MODE_ADD)
*m++ = *(s+1);
else
{
what = MODE_ADD;
*m++ = '+';
*m++ = *(s+1);
}
}
}
*m = '\0';
if (*umode_buf && cptr)
sendto_one(cptr, ":%s MODE %s :%s",
sptr->name, sptr->name, umode_buf);
}
/*
* added Sat Jul 25 07:30:42 EST 1992
*/
void send_umode_out(cptr, sptr, old)
aClient *cptr, *sptr;
int old;
{
Reg1 int i;
Reg2 aClient *acptr;
send_umode(NULL, sptr, old, SEND_UMODES, buf);
for (i = highest_fd; i >= 0; i--)
if ((acptr = local[i]) && IsServer(acptr) &&
(acptr != cptr) && (acptr != sptr) && *buf)
sendto_one(acptr, ":%s MODE %s :%s",
sptr->name, sptr->name, buf);
if (cptr && MyClient(cptr))
send_umode(cptr, sptr, old, ALL_UMODES, buf);
}
/***********************************************************************
* m_silence() - Added 19 May 1994 by Run.
*
***********************************************************************/
/*
* is_silenced : Does the actual check wether sptr is allowed
* to send a message to acptr.
* Both must be registered persons.
* If sptr is silenced by acptr, his message should not be propagated,
* but more over, if this is detected on a server not local to sptr
* the SILENCE mask is sent upstream.
*/
int is_silenced(sptr, acptr)
aClient *sptr;
aClient *acptr;
{ Reg1 Link *lp;
Reg2 anUser *user;
static char sender[HOSTLEN+NICKLEN+USERLEN+5];
if (!(acptr->user) || !(lp = acptr->user->silence) ||
!(user = sptr->user)) return 0;
sprintf(sender,"%s!%s@%s",sptr->name,user->username,user->host);
for (; lp; lp = lp->next)
{ if (!matches(lp->value.cp, sender))
{ if (!MyConnect(sptr))
{ sendto_one(sptr->from, ":%s SILENCE %s :%s",acptr->name,
sptr->name, lp->value.cp);
lp->flags=1; }
return 1; } }
return 0;
}
int del_silence(sptr, mask)
aClient *sptr;
char *mask;
{ Reg1 Link **lp;
Reg2 Link *tmp;
for (lp = &(sptr->user->silence); *lp; lp = &((*lp)->next))
if (mycmp(mask, (*lp)->value.cp)==0)
{ tmp = *lp;
*lp = tmp->next;
MyFree(tmp->value.cp);
free_link(tmp);
return 0; }
return -1;
}
static int add_silence(sptr, mask)
aClient *sptr;
char *mask;
{ Reg1 Link *lp;
Reg2 int cnt = 0, len = 0;
for (lp = sptr->user->silence; lp; lp = lp->next)
{ len += strlen(lp->value.cp);
if (MyClient(sptr))
if ((len > MAXSILELENGTH) || (++cnt >= MAXSILES))
{ sendto_one(sptr, err_str(ERR_SILELISTFULL), me.name, sptr->name, mask);
return -1; }
else
{ if (!matches(lp->value.cp, mask))
return -1; }
else if (!mycmp(lp->value.cp, mask))
return -1;
}
lp = make_link();
bzero((char *)lp, sizeof(Link));
lp->next = sptr->user->silence;
lp->value.cp = (char *)MyMalloc(strlen(mask)+1);
(void)strcpy(lp->value.cp, mask);
sptr->user->silence = lp;
return 0;
}
/*
** m_silence
** parv[0] = sender prefix
** From local client:
** parv[1] = mask (NULL sends the list)
** From remote client:
** parv[1] = nick that must be silenced
** parv[2] = mask
*/
int m_silence(cptr, sptr, parc, parv)
aClient *cptr, *sptr;
int parc;
char *parv[];
{
Link *lp;
aClient *acptr;
char c, *cp, *user, *host;
if (check_registered_user(sptr)) return 0;
if (MyClient(sptr))
{
acptr = sptr;
if (parc < 2 || *parv[1]=='\0' || (acptr = find_person(parv[1], NULL)))
{ if (!(acptr->user)) return 0;
for (lp = acptr->user->silence; lp; lp = lp->next)
sendto_one(sptr, rpl_str(RPL_SILELIST), me.name,
sptr->name, acptr->name, lp->value.cp);
sendto_one(sptr, rpl_str(RPL_ENDOFSILELIST), me.name, acptr->name);
return 0; }
cp = parv[1];
c = *cp;
if (c=='-' || c=='+') cp++;
else if (!(index(cp, '@') || index(cp, '.') ||
index(cp, '!') || index(cp, '*')))
{ sendto_one(sptr, err_str(ERR_NOSUCHNICK), me.name, parv[0], parv[1]);
return -1; }
else c = '+';
cp = pretty_mask(cp);
if ((c=='-' && !del_silence(sptr,cp)) ||
(c!='-' && !add_silence(sptr,cp)))
{ sendto_prefix_one(sptr, sptr, ":%s SILENCE %c%s", parv[0], c, cp);
if (c=='-')
sendto_serv_butone(NULL, ":%s SILENCE * -%s", sptr->name, cp);
}
}
else if (parc < 3 || *parv[2]=='\0')
{
sendto_one(sptr, err_str(ERR_NEEDMOREPARAMS), me.name, parv[0], "SILENCE");
return -1;
}
else
{
acptr = find_person(parv[1], NULL); /* In case of NOTE notice, parv[1]
can be a server */
if (*parv[2]=='-')
{ if (!del_silence(sptr,parv[2]+1))
sendto_serv_butone(cptr, ":%s SILENCE %s :%s",
parv[0], parv[1], parv[2]); }
else
{ (void)add_silence(sptr,parv[2]);
if (acptr && !MyClient(acptr))
sendto_one(acptr, ":%s SILENCE %s :%s",
parv[0], parv[1], parv[2]); }
}
return 0;
}
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