wraith-ircbot/src/mod/server.mod/server.c

#ifdef LEAF
/*
 * server.c -- part of server.mod
 *   basic irc server support
 *
 */

#define MODULE_NAME "server"
#define MAKING_SERVER
#include "src/mod/module.h"
#include "server.h"

static Function *global = NULL, *encryption_funcs;
extern struct cfg_entry CFG_OPTIMESLACK;
static int ctcp_mode;
static int serv;		/* sock # of server currently */
static int strict_host;		/* strict masking of hosts ? */
static char newserver[121];	/* new server? */
static int newserverport;	/* new server port? */
static char newserverpass[121];	/* new server password? */
static time_t trying_server;	/* trying to connect to a server right now? */
static int server_lag;		/* how lagged (in seconds) is the server? */
static char altnick[NICKLEN];	/* possible alternate nickname to use */
static char raltnick[NICKLEN];	/* random nick created from altnick */
static int curserv;		/* current position in server list: */
static int flud_thr;		/* msg flood threshold */
static int flud_time;		/* msg flood time */
static int flud_ctcp_thr;	/* ctcp flood threshold */
static int flud_ctcp_time;	/* ctcp flood time */
static char initserver[121];	/* what, if anything, to send to the
				   server on connection */
static char botuserhost[121];	/* bot's user@host (refreshed whenever the
				   bot joins a channel) */
				/* may not be correct user@host BUT it's
				   how the server sees it */
static int keepnick;		/* keep trying to regain my intended
				   nickname? */
static int nick_juped = 0;	/* True if origbotname is juped(RPL437) (dw) */
static int check_stoned;	/* Check for a stoned server? */
static int serverror_quit;	/* Disconnect from server if ERROR
				   messages received? */
static int quiet_reject;	/* Quietly reject dcc chat or sends from
				   users without access? */
static int waiting_for_awake;	/* set when i unidle myself, cleared when
				   i get the response */
static time_t server_online;	/* server connection time */
static time_t server_cycle_wait;	/* seconds to wait before
					   re-beginning the server list */
static char botrealname[121];	/* realname of bot */
static int min_servs;		/* minimum number of servers to be around */
static int server_timeout;	/* server timeout for connecting */
static int never_give_up;	/* never give up when connecting to servers? */
static int strict_servernames;	/* don't update server list */
static struct server_list *serverlist;	/* old-style queue, still used by
					   server list */
static int cycle_time;		/* cycle time till next server connect */
static int default_port;	/* default IRC port */
static char oldnick[NICKLEN];	/* previous nickname *before* rehash */
static int trigger_on_ignore;	/* trigger bindings if user is ignored ? */
static int answer_ctcp;		/* answer how many stacked ctcp's ? */
static int lowercase_ctcp;	/* answer lowercase CTCP's (non-standard) */
static int check_mode_r;	/* check for IRCNET +r modes */
static int net_type;
static char connectserver[121];	/* what, if anything, to do before connect
				   to the server */
static int resolvserv;		/* in the process of resolving a server host */
static int double_mode;		/* allow a msgs to be twice in a queue? */
static int double_server;
static int double_help;
static int double_warned;
static int lastpingtime;	/* IRCNet LAGmeter support -- drummer */
static char stackablecmds[511];
static char stackable2cmds[511];
static time_t last_time;
static int use_penalties;
static int use_fastdeq;
static int nick_len;		/* Maximal nick length allowed on the
				   network. */
static int kick_method;
static int optimize_kicks;


static p_tcl_bind_list H_wall, H_raw, H_notc, H_msgm, H_msg, H_flud,
		       H_ctcr, H_ctcp;
#ifdef S_AUTH
static p_tcl_bind_list H_msgc;
#endif /* S_AUTH */

static void empty_msgq(void);
static void next_server(int *, char *, unsigned int *, char *);
static void disconnect_server(int);
static char *get_altbotnick(void);
static int calc_penalty(char *);
static int fast_deq(int);
static char *splitnicks(char **);
static void check_queues(char *, char *);
static void parse_q(struct msgq_head *, char *, char *);
static void purge_kicks(struct msgq_head *);
static int deq_kick(int);
static void msgq_clear(struct msgq_head *qh);
static int stack_limit;

#include "servmsg.c"

#define MAXPENALTY 10

/* Number of seconds to wait between transmitting queued lines to the server
 * lower this value at your own risk.  ircd is known to start flood control
 * at 512 bytes/2 seconds.
 */
#define msgrate 2

/* Maximum messages to store in each queue. */
static int maxqmsg;
static struct msgq_head mq, hq, modeq;
static int burst;

#include "cmdsserv.c"
#include "tclserv.c"


/*
 *     Bot server queues
 */

/* Called periodically to shove out another queued item.
 *
 * 'mode' queue gets priority now.
 *
 * Most servers will allow 'busts' of upto 5 msgs, so let's put something
 * in to support flushing modeq a little faster if possible.
 * Will send upto 4 msgs from modeq, and then send 1 msg every time
 * it will *not* send anything from hq until the 'burst' value drops
 * down to 0 again (allowing a sudden mq flood to sneak through).
 */
static void deq_msg()
{
  struct msgq *q;
  int ok = 0;

  /* now < last_time tested 'cause clock adjustments could mess it up */
  if ((now - last_time) >= msgrate || now < (last_time - 90)) {
    last_time = now;
    if (burst > 0)
      burst--;
    ok = 1;
  }
  if (serv < 0)
    return;
  /* Send upto 4 msgs to server if the *critical queue* has anything in it */
  if (modeq.head) {
    while (modeq.head && (burst < 4) && ((last_time - now) < MAXPENALTY)) {
      if (deq_kick(DP_MODE)) {
        burst++;
        continue;
      }
      if (!modeq.head)
        break;
      if (fast_deq(DP_MODE)) {
        burst++;
        continue;
      }
      tputs(serv, modeq.head->msg, modeq.head->len);
      if (debug_output) {
	modeq.head->msg[strlen(modeq.head->msg) - 1] = 0; /* delete the "\n" */
        putlog(LOG_SRVOUT, "@", "[m->] %s", modeq.head->msg);
      }
      modeq.tot--;
      last_time += calc_penalty(modeq.head->msg);
      q = modeq.head->next;
      nfree(modeq.head->msg);
      nfree(modeq.head);
      modeq.head = q;
      burst++;
    }
    if (!modeq.head)
      modeq.last = 0;
    return;
  }
  /* Send something from the normal msg q even if we're slightly bursting */
  if (burst > 1)
    return;
  if (mq.head) {
    burst++;
    if (deq_kick(DP_SERVER))
      return;
    if (fast_deq(DP_SERVER))
      return;
    tputs(serv, mq.head->msg, mq.head->len);
    if (debug_output) {
      mq.head->msg[strlen(mq.head->msg) - 1] = 0; /* delete the "\n" */
      putlog(LOG_SRVOUT, "@", "[s->] %s", mq.head->msg);
    }
    mq.tot--;
    last_time += calc_penalty(mq.head->msg);
    q = mq.head->next;
    nfree(mq.head->msg);
    nfree(mq.head);
    mq.head = q;
    if (!mq.head)
      mq.last = NULL;
    return;
  }
  /* Never send anything from the help queue unless everything else is
   * finished.
   */
  if (!hq.head || burst || !ok)
    return;
  if (deq_kick(DP_HELP))
    return;
  if (fast_deq(DP_HELP))
    return;
  tputs(serv, hq.head->msg, hq.head->len);
  if (debug_output) {
    hq.head->msg[strlen(hq.head->msg) - 1] = 0; /* delete the "\n" */
    putlog(LOG_SRVOUT, "*", "[h->] %s", hq.head->msg);
  }
  hq.tot--;
  last_time += calc_penalty(hq.head->msg);
  q = hq.head->next;
  nfree(hq.head->msg);
  nfree(hq.head);
  hq.head = q;
  if (!hq.head)
    hq.last = NULL;
}

static int calc_penalty(char * msg)
{
  char *cmd, *par1, *par2, *par3;
  register int penalty, i, ii;

  if (!use_penalties &&
      net_type != NETT_UNDERNET && net_type != NETT_HYBRID_EFNET)
    return 0;
  if (msg[strlen(msg) - 1] == '\n')
    msg[strlen(msg) - 1] = '\0';
  cmd = newsplit(&msg);
  if (msg)
    i = strlen(msg);
  else
    i = strlen(cmd);
  last_time -= 2; /* undo eggdrop standard flood prot */
  if (net_type == NETT_UNDERNET || net_type == NETT_HYBRID_EFNET) {
    last_time += (2 + i / 120);
    return 0;
  }
  penalty = (1 + i / 100);
  if (!egg_strcasecmp(cmd, "KICK")) {
    par1 = newsplit(&msg); /* channel */
    par2 = newsplit(&msg); /* victim(s) */
    par3 = splitnicks(&par2);
    penalty++;
    while (strlen(par3) > 0) {
      par3 = splitnicks(&par2);
      penalty++;
    }
    ii = penalty;
    par3 = splitnicks(&par1);
    while (strlen(par1) > 0) {
      par3 = splitnicks(&par1);
      penalty += ii;
    }
  } else if (!egg_strcasecmp(cmd, "MODE")) {
    i = 0;
    par1 = newsplit(&msg); /* channel */
    par2 = newsplit(&msg); /* mode(s) */
    if (!strlen(par2))
      i++;
    while (strlen(par2) > 0) {
      if (strchr("ntimps", par2[0]))
        i += 3;
      else if (!strchr("+-", par2[0]))
        i += 1;
      par2++;
    }
    while (strlen(msg) > 0) {
      newsplit(&msg);
      i += 2;
    }
    ii = 0;
    while (strlen(par1) > 0) {
      splitnicks(&par1);
      ii++;
    }
    penalty += (ii * i);
  } else if (!egg_strcasecmp(cmd, "TOPIC")) {
    penalty++;
    par1 = newsplit(&msg); /* channel */
    par2 = newsplit(&msg); /* topic */
    if (strlen(par2) > 0) {  /* topic manipulation => 2 penalty points */
      penalty += 2;
      par3 = splitnicks(&par1);
      while (strlen(par1) > 0) {
        par3 = splitnicks(&par1);
        penalty += 2;
      }
    }
  } else if (!egg_strcasecmp(cmd, "PRIVMSG") ||
	     !egg_strcasecmp(cmd, "NOTICE")) {
    par1 = newsplit(&msg); /* channel(s)/nick(s) */
    /* Add one sec penalty for each recipient */
    while (strlen(par1) > 0) {
      splitnicks(&par1);
      penalty++;
    }
  } else if (!egg_strcasecmp(cmd, "WHO")) {
    par1 = newsplit(&msg); /* masks */
    par2 = par1;
    while (strlen(par1) > 0) {
      par2 = splitnicks(&par1);
      if (strlen(par2) > 4)   /* long WHO-masks receive less penalty */
        penalty += 3;
      else
        penalty += 5;
    }
  } else if (!egg_strcasecmp(cmd, "AWAY")) {
    if (strlen(msg) > 0)
      penalty += 2;
    else
      penalty += 1;
  } else if (!egg_strcasecmp(cmd, "INVITE")) {
    /* Successful invite receives 2 or 3 penalty points. Let's go
     * with the maximum.
     */
    penalty += 3;
  } else if (!egg_strcasecmp(cmd, "JOIN")) {
    penalty += 2;
  } else if (!egg_strcasecmp(cmd, "PART")) {
    penalty += 4;
  } else if (!egg_strcasecmp(cmd, "VERSION")) {
    penalty += 2;
  } else if (!egg_strcasecmp(cmd, "TIME")) {
    penalty += 2;
  } else if (!egg_strcasecmp(cmd, "TRACE")) {
    penalty += 2;
  } else if (!egg_strcasecmp(cmd, "NICK")) {
    penalty += 3;
  } else if (!egg_strcasecmp(cmd, "ISON")) {
    penalty += 1;
  } else if (!egg_strcasecmp(cmd, "WHOIS")) {
    penalty += 2;
  } else if (!egg_strcasecmp(cmd, "DNS")) {
    penalty += 2;
  } else
    penalty++; /* just add standard-penalty */
  /* Shouldn't happen, but you never know... */
  if (penalty > 99)
    penalty = 99;
  if (penalty < 2) {
    putlog(LOG_SRVOUT, "*", "Penalty < 2sec, that's impossible!");
    penalty = 2;
  }
  if (debug_output && penalty != 0)
    putlog(LOG_SRVOUT, "*", "Adding penalty: %i", penalty);
  return penalty;
}

char *splitnicks(char **rest)
{
  register char *o, *r;

  if (!rest)
    return *rest = "";
  o = *rest;
  while (*o == ' ')
    o++;
  r = o;
  while (*o && *o != ',')
    o++;
  if (*o)
    *o++ = 0;
  *rest = o;
  return r;
}

static int fast_deq(int which)
{
  struct msgq_head *h;
  struct msgq *m, *nm;
  char msgstr[511], nextmsgstr[511], tosend[511], victims[511], stackable[511],
       *msg, *nextmsg, *cmd, *nextcmd, *to, *nextto, *stckbl;
  int len, doit = 0, found = 0, cmd_count =0, stack_method = 1;

  if (!use_fastdeq)
    return 0;
  switch (which) {
    case DP_MODE:
      h = &modeq;
      break;
    case DP_SERVER:
      h = &mq;
      break;
    case DP_HELP:
      h = &hq;
      break;
    default:
      return 0;
  }
  m = h->head;
  strncpyz(msgstr, m->msg, sizeof msgstr);
  msg = msgstr;
  cmd = newsplit(&msg);
  if (use_fastdeq > 1) {
    strncpyz(stackable, stackablecmds, sizeof stackable);
    stckbl = stackable;
    while (strlen(stckbl) > 0)
      if (!egg_strcasecmp(newsplit(&stckbl), cmd)) {
        found = 1;
        break;
      }
    /* If use_fastdeq is 2, only commands in the list should be stacked. */
    if (use_fastdeq == 2 && !found)
      return 0;
    /* If use_fastdeq is 3, only commands that are _not_ in the list
     * should be stacked.
     */
    if (use_fastdeq == 3 && found)
      return 0;
    /* we check for the stacking method (default=1) */
    strncpyz(stackable, stackable2cmds, sizeof stackable);
    stckbl = stackable;
    while (strlen(stckbl) > 0)
      if (!egg_strcasecmp(newsplit(&stckbl), cmd)) {
        stack_method = 2;
        break;
      }    
  }
  to = newsplit(&msg);
  len = strlen(to);
  if (to[len - 1] == '\n')
    to[len -1] = 0;
  simple_sprintf(victims, "%s", to);
  while (m) {
    nm = m->next;
    if (!nm)
      break;
    strncpyz(nextmsgstr, nm->msg, sizeof nextmsgstr);
    nextmsg = nextmsgstr;
    nextcmd = newsplit(&nextmsg);
    nextto = newsplit(&nextmsg);
    len = strlen(nextto);
    if (nextto[len - 1] == '\n')
      nextto[len - 1] = 0;
    if ( strcmp(to, nextto) /* we don't stack to the same recipients */
        && !strcmp(cmd, nextcmd) && !strcmp(msg, nextmsg)
        && ((strlen(cmd) + strlen(victims) + strlen(nextto)
	     + strlen(msg) + 2) < 510)
        && (!stack_limit || cmd_count < stack_limit - 1)) {
      cmd_count++;
      if (stack_method == 1)
      	simple_sprintf(victims, "%s,%s", victims, nextto);
      else
      	simple_sprintf(victims, "%s %s", victims, nextto);
      doit = 1;
      m->next = nm->next;
      if (!nm->next)
        h->last = m;
      nfree(nm->msg);
      nfree(nm);
      h->tot--;
    } else
      m = m->next;
  }
  if (doit) {
    simple_sprintf(tosend, "%s %s %s", cmd, victims, msg);
    len = strlen(tosend);
    tosend[len - 1] = '\n';
    tputs(serv, tosend, len);
    m = h->head->next;
    nfree(h->head->msg);
    nfree(h->head);
    h->head = m;
    if (!h->head)
      h->last = 0;
    h->tot--;
    if (debug_output) {
      tosend[len - 1] = 0;
      switch (which) {
        case DP_MODE:
          putlog(LOG_SRVOUT, "*", "[m=>] %s", tosend);
          break;
        case DP_SERVER:
          putlog(LOG_SRVOUT, "*", "[s=>] %s", tosend);
          break;
        case DP_HELP:
          putlog(LOG_SRVOUT, "*", "[h=>] %s", tosend);
          break;
      }
    }
    last_time += calc_penalty(tosend);
    return 1;
  }
  return 0;
}

static void check_queues(char *oldnick, char *newnick)
{
  if (optimize_kicks == 2) {
    if (modeq.head)
      parse_q(&modeq, oldnick, newnick);
    if (mq.head)
      parse_q(&mq, oldnick, newnick);
    if (hq.head)
      parse_q(&hq, oldnick, newnick);
  }
}

static void parse_q(struct msgq_head *q, char *oldnick, char *newnick)
{
  struct msgq *m, *lm = NULL;
  char buf[511], *msg, *nicks, *nick, *chan, newnicks[511], newmsg[511];
  int changed;

  for (m = q->head; m;) {
    changed = 0;
    if (optimize_kicks == 2 && !egg_strncasecmp(m->msg, "KICK ", 5)) {
      newnicks[0] = 0;
      strncpyz(buf, m->msg, sizeof buf);
      if (buf[0] && (buf[strlen(buf)-1] == '\n'))
        buf[strlen(buf)-1] = '\0';
      msg = buf;
      newsplit(&msg);
      chan = newsplit(&msg);
      nicks = newsplit(&msg);
      while (strlen(nicks) > 0) {
        nick = splitnicks(&nicks);
        if (!egg_strcasecmp(nick, oldnick) &&
            ((9 + strlen(chan) + strlen(newnicks) + strlen(newnick) +
              strlen(nicks) + strlen(msg)) < 510)) {
          if (newnick)
            egg_snprintf(newnicks, sizeof newnicks, "%s,%s", newnicks, newnick);
          changed = 1;
        } else
          egg_snprintf(newnicks, sizeof newnicks, ",%s", nick);
      }
      egg_snprintf(newmsg, sizeof newmsg, "KICK %s %s %s\n", chan,
		   newnicks + 1, msg);
    }
    if (changed) {
      if (newnicks[0] == 0) {
        if (!lm)
          q->head = m->next;
        else
          lm->next = m->next;
        nfree(m->msg);
        nfree(m);
        m = lm;
        q->tot--;
        if (!q->head)
          q->last = 0;
      } else {
        nfree(m->msg);
        m->msg = nmalloc(strlen(newmsg) + 1);
        m->len = strlen(newmsg);
        strcpy(m->msg, newmsg);
      }
    }
    lm = m;
    if (m)
      m = m->next;
    else
      m = q->head;
  }
}

static void purge_kicks(struct msgq_head *q)
{
  struct msgq *m, *lm = NULL;
  char buf[511], *reason, *nicks, *nick, *chan, newnicks[511],
       newmsg[511], chans[511], *chns, *ch;
  int changed, found;
  struct chanset_t *cs;

  for (m = q->head; m;) {
    if (!egg_strncasecmp(m->msg, "KICK", 4)) {
      newnicks[0] = 0;
      changed = 0;
      strncpyz(buf, m->msg, sizeof buf);
      if (buf[0] && (buf[strlen(buf)-1] == '\n'))
        buf[strlen(buf)-1] = '\0';
      reason = buf;
      newsplit(&reason);
      chan = newsplit(&reason);
      nicks = newsplit(&reason);
      while (strlen(nicks) > 0) {
        found = 0;
        nick = splitnicks(&nicks);
        strncpyz(chans, chan, sizeof chans);
        chns = chans;
        while (strlen(chns) > 0) {
          ch = newsplit(&chns);
          cs = findchan(ch);
          if (!cs)
            continue;
          if (ismember(cs, nick))
            found = 1;
        }
        if (found)
          egg_snprintf(newnicks, sizeof newnicks, "%s,%s", newnicks, nick);
        else {
          putlog(LOG_SRVOUT, "*", "%s isn't on any target channel, removing "
		 "kick...", nick);
          changed = 1;
        }
      }
      if (changed) {
        if (newnicks[0] == 0) {
          if (!lm)
            q->head = m->next;
          else
            lm->next = m->next;
          nfree(m->msg);
          nfree(m);
          m = lm;
          q->tot--;
          if (!q->head)
            q->last = 0;
        } else {
          nfree(m->msg);
          egg_snprintf(newmsg, sizeof newmsg, "KICK %s %s %s\n", chan,
		       newnicks + 1, reason);
          m->msg = nmalloc(strlen(newmsg) + 1);
          m->len = strlen(newmsg);
          strcpy(m->msg, newmsg);
        }
      }
    }
    lm = m;
    if (m)
      m = m->next;
    else
      m = q->head;
  }
}

static int deq_kick(int which)
{
  struct msgq_head *h;
  struct msgq *msg, *m, *lm;
  char buf[511], buf2[511], *reason2, *nicks, *chan, *chan2, *reason, *nick,
       newnicks[511], newnicks2[511], newmsg[511];
  int changed = 0, nr = 0;

  if (!optimize_kicks)
    return 0;
  newnicks[0] = 0;
  switch (which) {
    case DP_MODE:
      h = &modeq;
      break;
    case DP_SERVER:
      h = &mq;
      break;
    case DP_HELP:
      h = &hq;
      break;
    default:
      return 0;
  }
  if (egg_strncasecmp(h->head->msg, "KICK", 4))
    return 0;
  if (optimize_kicks == 2) {
    purge_kicks(h);
    if (!h->head)
      return 1;
  }
  if (egg_strncasecmp(h->head->msg, "KICK", 4))
    return 0;
  msg = h->head;
  strncpyz(buf, msg->msg, sizeof buf);
  reason = buf;
  newsplit(&reason);
  chan = newsplit(&reason);
  nicks = newsplit(&reason);
  while (strlen(nicks) > 0) {
    egg_snprintf(newnicks, sizeof newnicks, "%s,%s", newnicks,
		 newsplit(&nicks));
    nr++;
  }
  for (m = msg->next, lm = NULL; m && (nr < kick_method);) {
    if (!egg_strncasecmp(m->msg, "KICK", 4)) {
      changed = 0;
      newnicks2[0] = 0;
      strncpyz(buf2, m->msg, sizeof buf2);
      if (buf2[0] && (buf2[strlen(buf2)-1] == '\n'))
        buf2[strlen(buf2)-1] = '\0';
      reason2 = buf2;
      newsplit(&reason2);
      chan2 = newsplit(&reason2);
      nicks = newsplit(&reason2);
      if (!egg_strcasecmp(chan, chan2) && !egg_strcasecmp(reason, reason2)) {
        while (strlen(nicks) > 0) {
          nick = splitnicks(&nicks);
          if ((nr < kick_method) &&
             ((9 + strlen(chan) + strlen(newnicks) + strlen(nick) +
             strlen(reason)) < 510)) {
            egg_snprintf(newnicks, sizeof newnicks, "%s,%s", newnicks, nick);
            nr++;
            changed = 1;
          } else
            egg_snprintf(newnicks2, sizeof newnicks2, "%s,%s", newnicks2, nick);
        }
      }
      if (changed) {
        if (newnicks2[0] == 0) {
          if (!lm)
            h->head->next = m->next;
          else
            lm->next = m->next;
          nfree(m->msg);
          nfree(m);
          m = lm;
          h->tot--;
          if (!h->head)
            h->last = 0;
        } else {
          nfree(m->msg);
          egg_snprintf(newmsg, sizeof newmsg, "KICK %s %s %s\n", chan2,
		       newnicks2 + 1, reason);
          m->msg = nmalloc(strlen(newmsg) + 1);
          m->len = strlen(newmsg);
          strcpy(m->msg, newmsg);
        }
      }
    }
    lm = m;
    if (m)
      m = m->next;
    else
      m = h->head->next;
  }
  egg_snprintf(newmsg, sizeof newmsg, "KICK %s %s %s\n", chan, newnicks + 1,
	       reason);
  tputs(serv, newmsg, strlen(newmsg));
  if (debug_output) {
    newmsg[strlen(newmsg) - 1] = 0;
    switch (which) {
      case DP_MODE:
        putlog(LOG_SRVOUT, "@", "[m->] %s", newmsg);
        break;
      case DP_SERVER:
        putlog(LOG_SRVOUT, "@", "[s->] %s", newmsg);
        break;
      case DP_HELP:
        putlog(LOG_SRVOUT, "@", "[h->] %s", newmsg);
        break;
    }
    debug3("Changed: %d, kick-method: %d, nr: %d", changed, kick_method, nr);
  }
  h->tot--;
  last_time += calc_penalty(newmsg);
  m = h->head->next;
  nfree(h->head->msg);
  nfree(h->head);
  h->head = m;
  if (!h->head)
    h->last = 0;
  return 1;
}

/* Clean out the msg queues (like when changing servers).
 */
static void empty_msgq()
{
  msgq_clear(&modeq);
  msgq_clear(&mq);
  msgq_clear(&hq);
  burst = 0;
}

/* Use when sending msgs... will spread them out so there's no flooding.
 */
static void queue_server(int which, char *buf, int len)
{
  struct msgq_head *h = NULL,
  		    tempq;
  struct msgq	   *q, *tq, *tqq;
  int		    doublemsg = 0,
  		    qnext = 0;

  /* Don't even BOTHER if there's no server online. */
  if (serv < 0)
    return;
  /* No queue for PING and PONG - drummer */
  if (!egg_strncasecmp(buf, "PING", 4) || !egg_strncasecmp(buf, "PONG", 4)) {
    if (buf[1] == 'I' || buf[1] == 'i')
      lastpingtime = now;	/* lagmeter */
    tputs(serv, buf, len);
    if (debug_output) {
      if (buf[len - 1] == '\n')
        buf[len - 1] = 0;
      putlog(LOG_SRVOUT, "@", "[m->] %s", buf);
    }
    return;
  }

  switch (which) {
  case DP_MODE_NEXT:
    qnext = 1;
    /* Fallthrough */
  case DP_MODE:
    h = &modeq;
    tempq = modeq;
    if (double_mode)
      doublemsg = 1;
    break;

  case DP_SERVER_NEXT:
    qnext = 1;
    /* Fallthrough */
  case DP_SERVER:
    h = &mq;
    tempq = mq;
    if (double_server)
      doublemsg = 1;
    break;

  case DP_HELP_NEXT:
    qnext = 1;
    /* Fallthrough */
  case DP_HELP:
    h = &hq;
    tempq = hq;
    if (double_help)
      doublemsg = 1;
    break;

  default:
    putlog(LOG_MISC, "*", "!!! queuing unknown type to server!!");
    return;
  }

  if (h->tot < maxqmsg) {
    /* Don't queue msg if it's already queued?  */
    if (!doublemsg)
      for (tq = tempq.head; tq; tq = tqq) {
	tqq = tq->next;
	if (!egg_strcasecmp(tq->msg, buf)) {
	  if (!double_warned) {
	    if (buf[len - 1] == '\n')
	      buf[len - 1] = 0;
	    debug1("msg already queued. skipping: %s", buf);
	    double_warned = 1;
	  }
	  return;
	}
      }

    q = nmalloc(sizeof(struct msgq));
    if (qnext)
      q->next = h->head;
    else
      q->next = NULL;
    if (h->head) {
      if (!qnext)
        h->last->next = q;
    } else
      h->head = q;
    if (qnext)
       h->head = q;
    h->last = q;
    q->len = len;
    q->msg = nmalloc(len + 1);
    strncpyz(q->msg, buf, len + 1);
    h->tot++;
    h->warned = 0;
    double_warned = 0;
  } else {
    if (!h->warned) {
      switch (which) {   
	case DP_MODE_NEXT:
 	/* Fallthrough */
	case DP_MODE:
      putlog(LOG_MISC, "*", "!!! OVER MAXIMUM MODE QUEUE");
 	break;
    
	case DP_SERVER_NEXT:
 	/* Fallthrough */
 	case DP_SERVER:
	putlog(LOG_MISC, "*", "!!! OVER MAXIMUM SERVER QUEUE");
	break;
            
	case DP_HELP_NEXT:
	/* Fallthrough */
	case DP_HELP:
	putlog(LOG_MISC, "*", "!!! OVER MAXIMUM HELP QUEUE");
	break;
      }
    }
    h->warned = 1;
  }

  if (debug_output && !h->warned) {
    if (buf[len - 1] == '\n')
      buf[len - 1] = 0;
    switch (which) {
    case DP_MODE:
      putlog(LOG_SRVOUT, "@", "[!m] %s", buf);
      break;
    case DP_SERVER:
      putlog(LOG_SRVOUT, "@", "[!s] %s", buf);
      break;
    case DP_HELP:
      putlog(LOG_SRVOUT, "@", "[!h] %s", buf);
      break;
    case DP_MODE_NEXT:
      putlog(LOG_SRVOUT, "@", "[!!m] %s", buf);
      break;
    case DP_SERVER_NEXT:
      putlog(LOG_SRVOUT, "@", "[!!s] %s", buf);
      break;
    case DP_HELP_NEXT:
      putlog(LOG_SRVOUT, "@", "[!!h] %s", buf);
      break;
    }
  }

  if (which == DP_MODE || which == DP_MODE_NEXT)
    deq_msg();		/* DP_MODE needs to be sent ASAP, flush if
			   possible. */
}

/* Add a new server to the server_list.
 */
static void add_server(char *ss)
{
  struct server_list *x, *z;
#ifdef USE_IPV6
  char *p, *q, *r;
#else
  char *p, *q;
#endif /* USE_IPV6 */

  for (z = serverlist; z && z->next; z = z->next);
  while (ss) {
    p = strchr(ss, ',');
    if (p)
      *p++ = 0;
    x = nmalloc(sizeof(struct server_list));

    x->next = 0;
    x->realname = 0;
    x->port = 0;
    if (z)
      z->next = x;
    else
      serverlist = x;
    z = x;
    q = strchr(ss, ':');
    if (!q) {
      x->port = default_port;
      x->pass = 0;
      x->name = nmalloc(strlen(ss) + 1);
      strcpy(x->name, ss);
    } else {
#ifdef USE_IPV6
      if (ss[0] == '[') {
        *ss++;
        q = strchr(ss, ']');
        *q++ = 0; /* intentional */
        r = strchr(q, ':');
        if (!r)
          x->port = default_port;
      }
#endif /* USE_IPV6 */
      *q++ = 0;
      x->name = nmalloc(q - ss);
      strcpy(x->name, ss);
      ss = q;
      q = strchr(ss, ':');
      if (!q) {
	x->pass = 0;
      } else {
	*q++ = 0;
	x->pass = nmalloc(strlen(q) + 1);
	strcpy(x->pass, q);
      }
#ifdef USE_IPV6
      if (!x->port) {
        x->port = atoi(ss);
      }
#else
      x->port = atoi(ss);
#endif /* USE_IPV6 */
    }
    ss = p;
  }
}

/* Clear out the given server_list.
 */
static void clearq(struct server_list *xx)
{
  struct server_list *x;

  while (xx) {
    x = xx->next;
    if (xx->name)
      nfree(xx->name);
    if (xx->pass)
      nfree(xx->pass);
    if (xx->realname)
      nfree(xx->realname);
    nfree(xx);
    xx = x;
  }
}
void servers_describe(struct cfg_entry * entry, int idx) {
}
void servers6_describe(struct cfg_entry * entry, int idx) {
}

int count(const char *s)
{
  char *ele;
  int i = 0;
  char count[1000];
  
  strcpy(count,s);
  ele=strtok(count,",");
  while(ele && *ele)
  {
    i++;
    ele=strtok((char*)NULL,",");
  }
  return i-1;
}

int rrand(int a, int b)
{
  b++;
  return ((random()%(b-a))+a);
}

char *randomize(char *line, char **new)
{
  char *str, *words[1000], *bak;
  int i,o,b,r,u = 0;
  bak = nmalloc(strlen(line)+1);
  strcpy(bak, line);
  i=count(line);

  b=i+1;
  str=strtok(line,",");
  o=0;
  while(str && *str)
  {
    words[o] = str;
    o++;
    str=strtok((char*)NULL,",");
  }

  while (b) {

    if (u > 200) { //some problem, bail out
      sprintf(*new, "%s", bak);
      nfree(bak);
      return *new;
    }

    r = rrand(0,i);

    if (strstr(*new,words[r]) == NULL) {
      if (b == i+1) sprintf(*new,"%s",words[r]);
      else sprintf(*new,"%s,%s", *new, words[r]);
      b--;
    } else 
      u++;

  }
  nfree(bak);
  return *new;
}
void servers_changed(struct cfg_entry * entry, char * olddata, int * valid) {
#ifdef LEAF
  char *slist, *p;
#ifdef S_RANDSERVERS
  char *new;

  if (hostname6[0] || myip6[0]) //we want to use the servers6 entry.
    return;
#endif

  slist = (char *) (entry->ldata ? entry->ldata : (entry->gdata ? entry->gdata : ""));
  if (serverlist) {
    clearq(serverlist);
    serverlist = NULL;
  }
  p=nmalloc(strlen(slist)+1);
  strcpy(p, slist);
#ifdef S_RANDSERVERS
  new = nmalloc(strlen(slist)+1);
  randomize(p,&new);
  strcpy(p, new);
 
#endif
  add_server(p);
  nfree(p);
#ifdef S_RANDSERVERS
  nfree(new);
#endif
#endif
}

void servers6_changed(struct cfg_entry * entry, char * olddata, int * valid) {
#ifdef LEAF
  char *slist, *p;
#ifdef S_RANDSERVERS
  char *new;

  if (!hostname6[0] && !myip6[0]) //we probably want to use the normal server list..
    return;
#endif
  slist = (char *) (entry->ldata ? entry->ldata : (entry->gdata ? entry->gdata : ""));
  if (serverlist) {
    clearq(serverlist);
    serverlist = NULL;
  }
  p=nmalloc(strlen(slist)+1);
  strcpy(p, slist);
#ifdef S_RANDSERVERS
  new = nmalloc(strlen(slist)+1);
  randomize(p,&new);
  strcpy(p, new);
 
#endif
  add_server(p);
  nfree(p);
#ifdef S_RANDSERVERS
  nfree(new);
#endif
#endif
}

void nick_describe(struct cfg_entry * entry, int idx) {
}

void nick_changed(struct cfg_entry * entry, char * olddata, int * valid) {
#ifdef LEAF
  char * p;
  if (entry->ldata)
    p=entry->ldata;
  else if (entry->gdata)
    p=entry->gdata;
  else
    p=NULL;
  if (p && p[0]) {
        strncpy0(origbotname, p, NICKMAX+1);
//        dprintf(DP_MODE, STR("NICK %s\n"), p);
  } else {
    strncpy0(origbotname, botnetnick, NICKMAX+1);
  }
#endif
}
void realname_describe(struct cfg_entry * entry, int idx) {
}

void realname_changed(struct cfg_entry * entry, char * olddata, int * valid) {
#ifdef LEAF
  if (entry->ldata) {
    strncpy0(botrealname, (char *) entry->ldata, 120);
  } else if (entry->gdata) {
    strncpy0(botrealname, (char *) entry->gdata, 120);
  }
#endif
}

struct cfg_entry CFG_SERVERS = {
  "servers", CFGF_LOCAL | CFGF_GLOBAL, NULL, NULL,
  servers_changed, servers_changed, servers_describe
};
struct cfg_entry CFG_SERVERS6 = {
  "servers6", CFGF_LOCAL | CFGF_GLOBAL, NULL, NULL,
  servers6_changed, servers6_changed, servers6_describe
};

struct cfg_entry CFG_NICK = {
  "nick", CFGF_LOCAL | CFGF_GLOBAL, NULL, NULL,
  nick_changed, nick_changed, nick_describe
};

struct cfg_entry CFG_REALNAME = {
  "realname", CFGF_LOCAL | CFGF_GLOBAL, NULL, NULL,
  realname_changed, realname_changed, realname_describe
};


/* Set botserver to the next available server.
 *
 * -> if (*ptr == -1) then jump to that particular server
 */
static void next_server(int *ptr, char *serv, unsigned int *port, char *pass)
{
  struct server_list *x = serverlist;
  int i = 0;

  if (x == NULL)
    return;
  /* -1  -->  Go to specified server */
  if (*ptr == (-1)) {
    for (; x; x = x->next) {
      if (x->port == *port) {
	if (!egg_strcasecmp(x->name, serv)) {
	  *ptr = i;
	  return;
	} else if (x->realname && !egg_strcasecmp(x->realname, serv)) {
	  *ptr = i;
	  strncpyz(serv, x->realname, sizeof serv);
	  return;
	}
      }
      i++;
    }
    /* Gotta add it: */
    x = nmalloc(sizeof(struct server_list));

    x->next = 0;
    x->realname = 0;
    x->name = nmalloc(strlen(serv) + 1);
    strcpy(x->name, serv);
    x->port = *port ? *port : default_port;
    if (pass && pass[0]) {
      x->pass = nmalloc(strlen(pass) + 1);
      strcpy(x->pass, pass);
    } else
      x->pass = NULL;
    list_append((struct list_type **) (&serverlist), (struct list_type *) x);
    *ptr = i;
    return;
  }
  /* Find where i am and boogie */
  i = (*ptr);
  while (i > 0 && x != NULL) {
    x = x->next;
    i--;
  }
  if (x != NULL) {
    x = x->next;
    (*ptr)++;
  }				/* Go to next server */
  if (x == NULL) {
    x = serverlist;
    *ptr = 0;
  }				/* Start over at the beginning */
  strcpy(serv, x->name);
  *port = x->port ? x->port : default_port;
  if (x->pass)
    strcpy(pass, x->pass);
  else
    pass[0] = 0;
}

static int server_6char STDVAR
{
  Function F = (Function) cd;
  char x[20];

  BADARGS(7, 7, " nick user@host handle dest/chan keyword/nick text");
  CHECKVALIDITY(server_6char);
  egg_snprintf(x, sizeof x, "%d",
	       F(argv[1], argv[2], argv[3], argv[4], argv[5], argv[6]));
  Tcl_AppendResult(irp, x, NULL);
  return TCL_OK;
}

static int server_5char STDVAR
{
  Function F = (Function) cd;

  BADARGS(6, 6, " nick user@host handle dest/channel text");
  CHECKVALIDITY(server_5char);
  F(argv[1], argv[2], argv[3], argv[4], argv[5]);
  return TCL_OK;
}

static int server_2char STDVAR
{
  Function F = (Function) cd;

  BADARGS(3, 3, " nick msg");
  CHECKVALIDITY(server_2char);
  F(argv[1], argv[2]);
  return TCL_OK;
}

static int server_msg STDVAR
{
  Function F = (Function) cd;

  BADARGS(5, 5, " nick uhost hand buffer");
  CHECKVALIDITY(server_msg);
  F(argv[1], argv[2], get_user_by_handle(userlist, argv[3]), argv[4]);
  return TCL_OK;
}

#ifdef S_AUTH
static int server_msgc STDVAR
{
  Function F = (Function) cd;

  BADARGS(6, 6, " nick uhost hand buffer chan");
  CHECKVALIDITY(server_msgc);
  F(argv[1], argv[2], get_user_by_handle(userlist, argv[3]), argv[4], argv[5]);
  return TCL_OK;
}
#endif /* S_AUTH */

static int server_raw STDVAR
{
  Function F = (Function) cd;

  BADARGS(4, 4, " from code args");
  CHECKVALIDITY(server_raw);
  Tcl_AppendResult(irp, int_to_base10(F(argv[1], argv[3])), NULL);
  return TCL_OK;
}

/* Read/write normal string variable.
 */

#if (((TCL_MAJOR_VERSION == 8) && (TCL_MINOR_VERSION >= 4)) || (TCL_MAJOR_VERSION > 8))
static char *nick_change(ClientData cdata, Tcl_Interp *irp, CONST char *name1,
			 CONST char *name2, int flags)
#else
static char *nick_change(ClientData cdata, Tcl_Interp *irp, char *name1,
                         char *name2, int flags)
#endif
{
#if (((TCL_MAJOR_VERSION == 8) && (TCL_MINOR_VERSION >= 4)) || (TCL_MAJOR_VERSION > 8))
  CONST char *new;
#else
  char *new;
#endif

  if (flags & (TCL_TRACE_READS | TCL_TRACE_UNSETS)) {
    Tcl_SetVar2(interp, name1, name2, origbotname, TCL_GLOBAL_ONLY);
    if (flags & TCL_TRACE_UNSETS)
      Tcl_TraceVar(irp, name1, TCL_TRACE_READS | TCL_TRACE_WRITES |
        	   TCL_TRACE_UNSETS, nick_change, cdata);
  } else {			/* writes */
    new = Tcl_GetVar2(interp, name1, name2, TCL_GLOBAL_ONLY);
    if (rfc_casecmp(origbotname, (char *)new)) {
      if (origbotname[0]) {
	putlog(LOG_MISC, "*", "* IRC NICK CHANGE: %s -> %s",
	       origbotname, new);
        nick_juped = 0;
      }
      strncpyz(origbotname, new, NICKLEN);
      if (server_online)
	dprintf(DP_SERVER, "NICK %s\n", origbotname);
    }
  }
  return NULL;
}

/* Replace all '?'s in s with a random number.
 */
static void rand_nick(char *nick)
{
  register char *p = nick;

  while ((p = strchr(p, '?')) != NULL) {
    *p = '0' + random() % 10;
    p++;
  }
}

/* Return the alternative bot nick.
 */
static char *get_altbotnick(void)
{
  /* A random-number nick? */
  if (strchr(altnick, '?')) {
    if (!raltnick[0]) {
      strncpyz(raltnick, altnick, NICKLEN);
      rand_nick(raltnick);
    }
    return raltnick;
  } else
    return altnick;
}

#if (((TCL_MAJOR_VERSION == 8) && (TCL_MINOR_VERSION >= 4)) || (TCL_MAJOR_VERSION > 8))
static char *altnick_change(ClientData cdata, Tcl_Interp *irp,
                            CONST char *name1, CONST char *name2, int flags)
#else
static char *altnick_change(ClientData cdata, Tcl_Interp *irp, char *name1,
                            char *name2, int flags)
#endif
{
  /* Always unset raltnick. Will be regenerated when needed. */
  raltnick[0] = 0;
  return NULL;
}

#if (((TCL_MAJOR_VERSION == 8) && (TCL_MINOR_VERSION >= 4)) || (TCL_MAJOR_VERSION > 8))
static char *traced_server(ClientData cdata, Tcl_Interp *irp,
                           CONST char *name1, CONST char *name2, int flags)
#else
static char *traced_server(ClientData cdata, Tcl_Interp *irp, char *name1,
                           char *name2, int flags)
#endif
{
  char s[1024];

  if (server_online) {
    int servidx = findanyidx(serv);

    simple_sprintf(s, "%s:%u", dcc[servidx].host, dcc[servidx].port);
  } else
    s[0] = 0;
  Tcl_SetVar2(interp, name1, name2, s, TCL_GLOBAL_ONLY);
  if (flags & TCL_TRACE_UNSETS)
    Tcl_TraceVar(irp, name1, TCL_TRACE_READS | TCL_TRACE_WRITES |
		 TCL_TRACE_UNSETS, traced_server, cdata);
  return NULL;
}

#if (((TCL_MAJOR_VERSION == 8) && (TCL_MINOR_VERSION >= 4)) || (TCL_MAJOR_VERSION > 8))
static char *traced_botname(ClientData cdata, Tcl_Interp *irp,
                            CONST char *name1, CONST char *name2, int flags)
#else
static char *traced_botname(ClientData cdata, Tcl_Interp *irp, char *name1,
                            char *name2, int flags)
#endif
{
  char s[1024];

  simple_sprintf(s, "%s%s%s", botname, 
		 botuserhost[0] ? "!" : "", botuserhost[0] ? botuserhost : "");
  Tcl_SetVar2(interp, name1, name2, s, TCL_GLOBAL_ONLY);
  if (flags & TCL_TRACE_UNSETS)
    Tcl_TraceVar(irp, name1, TCL_TRACE_READS | TCL_TRACE_WRITES |
		 TCL_TRACE_UNSETS, traced_botname, cdata);
  return NULL;
}

static void do_nettype(void)
{
  switch (net_type) {
  case NETT_EFNET:
    check_mode_r = 0;
    nick_len = 9;
    break;
  case NETT_IRCNET:
    check_mode_r = 1;
    use_penalties = 1;
    use_fastdeq = 3;
    nick_len = 9;
    simple_sprintf(stackablecmds, "INVITE AWAY VERSION NICK");
    kick_method = 4;
    break;
  case NETT_UNDERNET:
    check_mode_r = 0;
    use_fastdeq = 2;
    nick_len = 9;
    simple_sprintf(stackablecmds, "PRIVMSG NOTICE TOPIC PART WHOIS USERHOST USERIP ISON");
    simple_sprintf(stackable2cmds, "USERHOST USERIP ISON");
    break;
  case NETT_DALNET:
    check_mode_r = 0;
    use_fastdeq = 2;
    nick_len = 32;
    simple_sprintf(stackablecmds, "PRIVMSG NOTICE PART WHOIS WHOWAS USERHOST ISON WATCH DCCALLOW");
    simple_sprintf(stackable2cmds, "USERHOST ISON WATCH");
    break;
  case NETT_HYBRID_EFNET:
    check_mode_r = 0;
    nick_len = 9;
    break;
  }
}

#if (((TCL_MAJOR_VERSION == 8) && (TCL_MINOR_VERSION >= 4)) || (TCL_MAJOR_VERSION > 8))
static char *traced_nettype(ClientData cdata, Tcl_Interp *irp,
                            CONST char *name1, CONST char *name2, int flags)
#else
static char *traced_nettype(ClientData cdata, Tcl_Interp *irp, char *name1,
                            char *name2, int flags)
#endif
{
  do_nettype();
  return NULL;
}

#if (((TCL_MAJOR_VERSION == 8) && (TCL_MINOR_VERSION >= 4)) || (TCL_MAJOR_VERSION > 8))
static char *traced_nicklen(ClientData cdata, Tcl_Interp *irp,
                            CONST char *name1, CONST char *name2, int flags)
#else
static char *traced_nicklen(ClientData cdata, Tcl_Interp *irp, char *name1,
                            char *name2, int flags)
#endif

{
  if (flags & (TCL_TRACE_READS | TCL_TRACE_UNSETS)) {
    char s[40];

    egg_snprintf(s, sizeof s, "%d", nick_len);
    Tcl_SetVar2(interp, name1, name2, s, TCL_GLOBAL_ONLY);
    if (flags & TCL_TRACE_UNSETS)
      Tcl_TraceVar(irp, name1, TCL_TRACE_WRITES | TCL_TRACE_UNSETS,
		   traced_nicklen, cdata);
  } else {
#if (((TCL_MAJOR_VERSION == 8) && (TCL_MINOR_VERSION >= 4)) || (TCL_MAJOR_VERSION > 8))
    CONST char *cval = Tcl_GetVar2(interp, name1, name2, TCL_GLOBAL_ONLY);
#else
    char *cval = Tcl_GetVar2(interp, name1, name2, TCL_GLOBAL_ONLY);
#endif
    long lval = 0;
Context;
    if (cval && Tcl_ExprLong(interp, cval, &lval) != TCL_ERROR) {
      if (lval > NICKMAX)
	lval = NICKMAX;
      nick_len = (int) lval;
    }
  }
  return NULL;
}

static tcl_strings my_tcl_strings[] =
{
  {"botnick",			NULL,		0,		STR_PROTECT},
  {"altnick",			altnick,	NICKMAX,	0},
  {"realname",			botrealname,	80,		0},
  {"init-server",		initserver,	120,		0},
  {"connect-server",		connectserver,	120,		0},
  {"stackable-commands",	stackablecmds,	510,		0},
  {"stackable2-commands",	stackable2cmds,	510,		0},
  {NULL,			NULL,		0,		0}
};

static tcl_coups my_tcl_coups[] =
{
  {"flood-msg",		&flud_thr,		&flud_time},
  {"flood-ctcp",	&flud_ctcp_thr, 	&flud_ctcp_time},
  {NULL,		NULL,			NULL}
};

static tcl_ints my_tcl_ints[] =
{
  {"use-console-r",		NULL,				1},
  {"servlimit",			&min_servs,			0},
  {"server-timeout",		&server_timeout,		0},
  {"lowercase-ctcp",		&lowercase_ctcp,		0},
  {"server-online",		(int *) &server_online,		2},
  {"never-give-up",		&never_give_up,			0},
  {"keep-nick",			&keepnick,			0},
  {"strict-servernames",	&strict_servernames,		0},
  {"check-stoned",		&check_stoned,			0},
  {"serverror-quit",		&serverror_quit,		0},
  {"quiet-reject",		&quiet_reject,			0},
  {"max-queue-msg",		&maxqmsg,			0},
  {"trigger-on-ignore",		&trigger_on_ignore,		0},
  {"answer-ctcp",		&answer_ctcp,			0},
  {"server-cycle-wait",		(int *) &server_cycle_wait,	0},
  {"default-port",		&default_port,			0},
  {"check-mode-r",		&check_mode_r,			0},
  {"net-type",			&net_type,			0},
  {"ctcp-mode",			&ctcp_mode,			0},
  {"double-mode",		&double_mode,			0},/* G`Quann */
  {"double-server",		&double_server,			0},
  {"double-help",		&double_help,			0},
  {"use-penalties",		&use_penalties,			0},
  {"use-fastdeq",		&use_fastdeq,			0},
  {"nicklen",			&nick_len,			0},
  {"nick-len",			&nick_len,			0},
  {"optimize-kicks",		&optimize_kicks,		0},
  {"isjuped",			&nick_juped,			0},
  {"stack-limit",               &stack_limit,                   0},
  {NULL,			NULL,				0}
};

/*
 *     CTCP DCC CHAT functions
 */

static void dcc_chat_hostresolved(int);

/* This only handles CHAT requests, otherwise it's handled in filesys.
 */
static int ctcp_DCC_CHAT(char *nick, char *from, char *handle,
			 char *object, char *keyword, char *text)
{
  char *action, *param, *ip, *prt, buf[512], *msg = buf;
  int i, ok;
  struct userrec *u = get_user_by_handle(userlist, handle);
  struct flag_record fr = {FR_GLOBAL | FR_CHAN | FR_ANYWH, 0, 0, 0, 0, 0};
  if (!ischanhub())
    return 0;
  strcpy(msg, text);
  action = newsplit(&msg);
  param = newsplit(&msg);
  ip = newsplit(&msg);
  prt = newsplit(&msg);
  if (egg_strcasecmp(action, "CHAT") || egg_strcasecmp(object, botname) || !u)
    return 0;
  get_user_flagrec(u, &fr, 0);
  ok = 1;
  if (ischanhub() && !glob_chuba(fr))
   ok = 0;
  if (dcc_total == max_dcc) {
    if (!quiet_reject)
      dprintf(DP_HELP, "NOTICE %s :%s\n", nick, DCC_TOOMANYDCCS1);
    putlog(LOG_MISC, "*", DCC_TOOMANYDCCS2, "CHAT", param, nick, from);
  } else if (!ok) {
    if (!quiet_reject)
      dprintf(DP_HELP, "NOTICE %s :%s\n", nick, DCC_REFUSED2);
    putlog(LOG_MISC, "*", "%s: %s!%s", ischanhub() ? DCC_REFUSED : DCC_REFUSEDNC, nick, from);
  } else if (u_pass_match(u, "-")) {
    if (!quiet_reject)
      dprintf(DP_HELP, "NOTICE %s :%s\n", nick, DCC_REFUSED3);
    putlog(LOG_MISC, "*", "%s: %s!%s", DCC_REFUSED4, nick, from);
  } else if (atoi(prt) < 1024 || atoi(prt) > 65535) {
    /* Invalid port */
    if (!quiet_reject)
      dprintf(DP_HELP, "NOTICE %s :%s (invalid port)\n", nick,
	      DCC_CONNECTFAILED1);
    putlog(LOG_MISC, "*", "%s: CHAT (%s!%s)", DCC_CONNECTFAILED3,
	   nick, from);
  } else {
    if (!sanitycheck_dcc(nick, from, ip, prt))
      return 1;
    i = new_dcc(&DCC_DNSWAIT, sizeof(struct dns_info));
    if (i < 0) {
      putlog(LOG_MISC, "*", "DCC connection: CHAT (%s!%s)", dcc[i].nick, ip);
      return 1;
    }
#ifdef USE_IPV6
    if (hostprotocol(ip) == AF_INET6 && sockprotocol(dcc[i].sock) == AF_INET6) {
      debug1("ipv6 addr: %s",ip);
      strcpy(dcc[i].addr6,ip);
      debug1("ipv6 addr: %s",dcc[i].addr6);
    } else
#endif /* USE_IPV6 */
      dcc[i].addr = my_atoul(ip);
    dcc[i].port = atoi(prt);
    dcc[i].sock = -1;
    strcpy(dcc[i].nick, u->handle);
    strcpy(dcc[i].host, from);
    dcc[i].timeval = now;
    dcc[i].user = u;
#ifdef USE_IPV6
    if (sockprotocol(dcc[i].sock) != AF_INET6) {
#endif /* USE_IPV6 */
/* remove me? */
      dcc[i].addr = my_atoul(ip);
      dcc[i].u.dns->ip = dcc[i].addr;
      dcc[i].u.dns->dns_type = RES_HOSTBYIP;
      dcc[i].u.dns->dns_success = dcc_chat_hostresolved;
      dcc[i].u.dns->dns_failure = dcc_chat_hostresolved;
      dcc[i].u.dns->type = &DCC_CHAT_PASS;
      dcc_dnshostbyip(dcc[i].addr);
#ifdef USE_IPV6
    } else
      dcc_chat_hostresolved(i); /* Don't try to look it up */
#endif /* USE_IPV6 */
  }
  return 1;
}

static void dcc_chat_hostresolved(int i)
{
  char buf[512], ip[512];
  int ok;
  struct flag_record fr = {FR_GLOBAL | FR_CHAN | FR_ANYWH, 0, 0, 0, 0, 0};

  egg_snprintf(buf, sizeof buf, "%d", dcc[i].port);
#ifndef USE_IPV6
  if (!hostsanitycheck_dcc(dcc[i].nick, dcc[i].host, dcc[i].addr,
                           dcc[i].u.dns->host, buf)) {
    lostdcc(i);
    return;
  }
#else
  if (sockprotocol(dcc[i].sock) == AF_INET6) {
    strcpy(ip,dcc[i].addr6); /* safe, addr6 is 121 */
    debug0("afinet6, af_type, strcpy");
  } else
#endif /* !USE_IPV6 */
  egg_snprintf(ip, sizeof ip, "%lu", iptolong(htonl(dcc[i].addr)));
#ifdef USE_IPV6
  if (sockprotocol(dcc[i].sock) == AF_INET6) {
#  ifdef IPV6_DEBUG
    debug2("af_inet6 %s / %s", dcc[i].addr6, ip);
#  endif /* IPV6_DEBUG */
    dcc[i].sock = getsock(0, AF_INET6);
  } else {
#  ifdef IPV6_DEBUG
    debug0("af_inet");
#  endif /* IPV6_DEBUG */
    dcc[i].sock = getsock(0, AF_INET);
  }
#else
  dcc[i].sock = getsock(0);
#  ifdef IPV6_DEBUG
  debug2("sock: %d %s", dcc[i].sock, ip);
#  endif /* IPV6_DEBUG */
#endif /* USE_IPV6 */
  if (dcc[i].sock < 0 || open_telnet_dcc(dcc[i].sock, ip, buf) < 0) {
    neterror(buf);
    if (!quiet_reject)
      dprintf(DP_HELP, "NOTICE %s :%s (%s)\n", dcc[i].nick,
	      DCC_CONNECTFAILED1, buf);
    putlog(LOG_MISC, "*", "%s: CHAT (%s!%s)", DCC_CONNECTFAILED2,
	   dcc[i].nick, dcc[i].host);
    putlog(LOG_MISC, "*", "    (%s)", buf);
    killsock(dcc[i].sock);
    lostdcc(i);
  } else {
#ifdef HAVE_SSL
    ssl_link(dcc[i].sock, CONNECT_SSL);
#endif /* HAVE_SSL */
    changeover_dcc(i, &DCC_CHAT_PASS, sizeof(struct chat_info));
    dcc[i].status = STAT_ECHO;
    get_user_flagrec(dcc[i].user, &fr, 0);
    ok = 1;
    if (ischanhub() && !glob_chuba(fr))
     ok = 0;
    if (ok)
      dcc[i].status |= STAT_PARTY;
    strcpy(dcc[i].u.chat->con_chan, (chanset) ? chanset->dname : "*");
    dcc[i].timeval = now;
    /* Ok, we're satisfied with them now: attempt the connect */
    putlog(LOG_MISC, "*", "DCC connection: CHAT (%s!%s)", dcc[i].nick,
	   dcc[i].host);
    dprintf(i, "%s", rand_dccresp());
  }
  return;
}


/*
 *     Server timer functions
 */

static void server_secondly()
{
  if (cycle_time)
    cycle_time--;
  deq_msg();
  if (!resolvserv && serv < 0)
    connect_server();
}

static void server_5minutely()
{
  if (check_stoned && server_online) {
    if (waiting_for_awake) {
      /* Uh oh!  Never got pong from last time, five minutes ago!
       * Server is probably stoned.
       */
      int servidx = findanyidx(serv);

      disconnect_server(servidx);
      lostdcc(servidx);
      putlog(LOG_SERV, "*", IRC_SERVERSTONED);
    } else if (!trying_server) {
      /* Check for server being stoned. */
      dprintf(DP_MODE, "PING :%lu\n", (unsigned long) now);
      waiting_for_awake = 1;
    }
  }
}

static void server_prerehash()
{
  strcpy(oldnick, botname);
}

static void server_postrehash()
{
  strncpyz(botname, origbotname, NICKLEN);
//  if (!botname[0])
//    fatal("NO BOT NAME.", 0);
//  if (serverlist == NULL)
//    fatal("NO SERVER.", 0);
    if (oldnick[0] && !rfc_casecmp(oldnick, botname)
       && !rfc_casecmp(oldnick, get_altbotnick())) {
    /* Change botname back, don't be premature. */
    strcpy(botname, oldnick);
    dprintf(DP_SERVER, "NICK %s\n", origbotname);
  }
  /* Change botname back incase we were using altnick previous to rehash. */
  else if (oldnick[0])
    strcpy(botname, oldnick);
}

static void server_die()
{
  cycle_time = 100;
  if (server_online) {
    dprintf(-serv, "QUIT :%s\n", quit_msg[0] ? quit_msg : "");
    sleep(3); /* Give the server time to understand */
  }
  nuke_server(NULL);
}

/* A report on the module status.
 */
static void server_report(int idx, int details)
{
  char s1[64], s[128];
  int servidx;

  if (server_online) {
    dprintf(idx, "    Online as: %s%s%s (%s)\n", botname,
	    botuserhost[0] ? "!" : "", botuserhost[0] ? botuserhost : "",
	    botrealname);
    if (nick_juped)
      dprintf(idx, "    NICK IS JUPED: %s %s\n", origbotname,
	      keepnick ? "(trying)" : "");
    nick_juped = 0; /* WHY?? -- drummer */
    daysdur(now, server_online, s1);
    egg_snprintf(s, sizeof s, "(connected %s)", s1);
    if (server_lag && !waiting_for_awake) {
      if (server_lag == (-1))
	egg_snprintf(s1, sizeof s1, " (bad pong replies)");
      else
	egg_snprintf(s1, sizeof s1, " (lag: %ds)", server_lag);
      strcat(s, s1);
    }
  }
  if ((trying_server || server_online) &&
	((servidx = findanyidx(serv)) != (-1))) {
    dprintf(idx, "    Server %s:%d %s\n", dcc[servidx].host, dcc[servidx].port,
	    trying_server ? "(trying)" : s);
  } else
    dprintf(idx, "    %s\n", IRC_NOSERVER);
  if (modeq.tot)
    dprintf(idx, "    %s %d%%, %d msgs\n", IRC_MODEQUEUE,
            (int) ((float) (modeq.tot * 100.0) / (float) maxqmsg),
	    (int) modeq.tot);
  if (mq.tot)
    dprintf(idx, "    %s %d%%, %d msgs\n", IRC_SERVERQUEUE,
           (int) ((float) (mq.tot * 100.0) / (float) maxqmsg), (int) mq.tot);
  if (hq.tot)
    dprintf(idx, "    %s %d%%, %d msgs\n", IRC_HELPQUEUE,
           (int) ((float) (hq.tot * 100.0) / (float) maxqmsg), (int) hq.tot);
  if (details) {
    if (min_servs)
      dprintf(idx, "    Requiring a net of at least %d server(s)\n", min_servs);
    if (initserver[0])
      dprintf(idx, "    On connect, I do: %s\n", initserver);
    if (connectserver[0])
      dprintf(idx, "    Before connect, I do: %s\n", connectserver);
    dprintf(idx, "    Flood is: %d msg/%ds, %d ctcp/%ds\n",
	    flud_thr, flud_time, flud_ctcp_thr, flud_ctcp_time);
  }
}

static void msgq_clear(struct msgq_head *qh)
{
  register struct msgq	*q, *qq;

  for (q = qh->head; q; q = qq) {
    qq = q->next;
    nfree(q->msg);
    nfree(q);
  }
  qh->head = qh->last = NULL;
  qh->tot = qh->warned = 0;
}

static int msgq_expmem(struct msgq_head *qh)
{
  register int		 tot = 0;
  register struct msgq	*m;

  for (m = qh->head; m; m = m->next) {
    tot += m->len + 1;
    tot += sizeof(struct msgq);
  }
  return tot;
}

static int server_expmem()
{
  int			 tot = 0;
  struct server_list	*s = serverlist;

  for (; s; s = s->next) {
    if (s->name)
      tot += strlen(s->name) + 1;
    if (s->pass)
      tot += strlen(s->pass) + 1;
    if (s->realname)
      tot += strlen(s->realname) + 1;
    tot += sizeof(struct server_list);
  }

  tot += msgq_expmem(&mq) + msgq_expmem(&hq) + msgq_expmem(&modeq);

  return tot;
}

static cmd_t my_ctcps[] =
{
  {"DCC",	"",	ctcp_DCC_CHAT,		"server:DCC"},
  {NULL,	NULL,	NULL,			NULL}
};

EXPORT_SCOPE char *server_start();

static Function server_table[] =
{
  (Function) server_start,
  (Function) NULL,
  (Function) server_expmem,
  (Function) server_report,
  /* 4 - 7 */
  (Function) NULL,		/* char * (points to botname later on)	*/
  (Function) botuserhost,	/* char *				*/
  (Function) & quiet_reject,	/* int					*/
  (Function) & serv,		/* int					*/
  /* 8 - 11 */
  (Function) & flud_thr,	/* int					*/
  (Function) & flud_time,	/* int					*/
  (Function) & flud_ctcp_thr,	/* int					*/
  (Function) & flud_ctcp_time,	/* int					*/
  /* 12 - 15 */
  (Function) match_my_nick,
  (Function) check_tcl_flud,
  (Function) NULL,		/* fixfrom - moved to the core (drummer) */
  (Function) & answer_ctcp,	/* int					*/
  /* 16 - 19 */
  (Function) & trigger_on_ignore, /* int				*/
  (Function) check_tcl_ctcpr,
  (Function) detect_avalanche,
  (Function) nuke_server,
  /* 20 - 23 */
  (Function) newserver,		/* char *				*/
  (Function) & newserverport,	/* int					*/
  (Function) newserverpass,	/* char *				*/
  (Function) & cycle_time,	/* int					*/
  /* 24 - 27 */
  (Function) & default_port,	/* int					*/
  (Function) & server_online,	/* int					*/
  (Function) & min_servs,	/* int					*/
  (Function) & H_raw,		/* p_tcl_bind_list			*/
  /* 28 - 31 */
  (Function) & H_wall,		/* p_tcl_bind_list			*/
  (Function) & H_msg,		/* p_tcl_bind_list			*/
  (Function) & H_msgm,		/* p_tcl_bind_list			*/
  (Function) & H_notc,		/* p_tcl_bind_list			*/
  /* 32 - 35 */
  (Function) & H_flud,		/* p_tcl_bind_list			*/
  (Function) & H_ctcp,		/* p_tcl_bind_list			*/
  (Function) & H_ctcr,		/* p_tcl_bind_list			*/
  (Function) ctcp_reply,
  /* 36 - 38 */
  (Function) get_altbotnick,	/* char *				*/
  (Function) & nick_len,	/* int					*/
  (Function) check_tcl_notc,
  (Function) & server_lag, /* int */
  (Function) & curserv,
  (Function) cursrvname,
  (Function) botrealname,
#ifdef S_AUTH
  (Function) & H_msgc,          /* p_tcl_bind_list */
#endif /* S_AUTH */

};

char *server_start(Function *global_funcs)
{
#if (((TCL_MAJOR_VERSION == 8) && (TCL_MINOR_VERSION >= 4)) || (TCL_MAJOR_VERSION > 8))
  CONST char *s;
#else
  char *s;
#endif

  global = global_funcs;


  /*
   * Init of all the variables *must* be done in _start rather than
   * globally.
   */
  serv = -1;
  strict_host = 1;
  botname[0] = 0;
  trying_server = 0L;
  server_lag = 0;
  altnick[0] = 0;
  raltnick[0] = 0;
  curserv = 0;
  flud_thr = 5;
  flud_time = 60;
  flud_ctcp_thr = 3;
  flud_ctcp_time = 60;
  initserver[0] = 0;
  connectserver[0] = 0;		/* drummer */
  botuserhost[0] = 0;
  keepnick = 1;
  check_stoned = 1;
  serverror_quit = 1;
  quiet_reject = 1;
  waiting_for_awake = 0;
  server_online = 0;
  server_cycle_wait = 15;
  strcpy(botrealname, "A deranged product of evil coders");
  min_servs = 0;
  server_timeout = 15;
  never_give_up = 1;
  strict_servernames = 1;
  serverlist = NULL;
  cycle_time = 0;
  default_port = 6667;
  oldnick[0] = 0;
  trigger_on_ignore = 0;
  answer_ctcp = 1;
  lowercase_ctcp = 0;
  check_mode_r = 0;
  maxqmsg = 300;
  burst = 0;
  net_type = NETT_EFNET;
  double_mode = 0;
  double_server = 0;
  double_help = 0;
  use_penalties = 0;
  use_fastdeq = 0;
  stackablecmds[0] = 0;
  strcpy(stackable2cmds, "USERHOST ISON");
  resolvserv = 0;
  lastpingtime = 0;
  last_time = 0;
  nick_len = 9;
  kick_method = 1;
  optimize_kicks = 0;
  stack_limit = 4;

  server_table[4] = (Function) botname;
  module_register(MODULE_NAME, server_table, 1, 2);
  if (!(encryption_funcs = module_depend(MODULE_NAME, "encryption", 0, 0))) {
    module_undepend(MODULE_NAME);
    return "This module requires an encryption modules.";
  }


  /* Fool bot in reading the values. */
  s = Tcl_GetVar(interp, "nick", TCL_GLOBAL_ONLY);
  if (s)
    strncpyz(origbotname, s, NICKLEN);
  Tcl_TraceVar(interp, "nick",
	       TCL_TRACE_READS | TCL_TRACE_WRITES | TCL_TRACE_UNSETS,
	       nick_change, NULL);
  Tcl_TraceVar(interp, "altnick",
	       TCL_TRACE_WRITES | TCL_TRACE_UNSETS, altnick_change, NULL);
  Tcl_TraceVar(interp, "botname",
	       TCL_TRACE_READS | TCL_TRACE_WRITES | TCL_TRACE_UNSETS,
	       traced_botname, NULL);
  Tcl_TraceVar(interp, "server",
	       TCL_TRACE_READS | TCL_TRACE_WRITES | TCL_TRACE_UNSETS,
	       traced_server, NULL);
  Tcl_TraceVar(interp, "net-type",
	       TCL_TRACE_READS | TCL_TRACE_WRITES | TCL_TRACE_UNSETS,
	       traced_nettype, NULL);
  Tcl_TraceVar(interp, "nick-len",
	       TCL_TRACE_READS | TCL_TRACE_WRITES | TCL_TRACE_UNSETS,
	       traced_nicklen, NULL);

  H_wall = add_bind_table("wall", HT_STACKABLE, server_2char);
  H_raw = add_bind_table("raw", HT_STACKABLE, server_raw);
  H_notc = add_bind_table("notc", HT_STACKABLE, server_5char);
  H_msgm = add_bind_table("msgm", HT_STACKABLE, server_msg);
#ifdef S_AUTH
  H_msgc = add_bind_table("msgc", 0, server_msgc);
#endif /* S_AUTH */
  H_msg = add_bind_table("msg", 0, server_msg);
  H_flud = add_bind_table("flud", HT_STACKABLE, server_5char);
  H_ctcr = add_bind_table("ctcr", HT_STACKABLE, server_6char);
  H_ctcp = add_bind_table("ctcp", HT_STACKABLE, server_6char);
  add_builtins(H_raw, my_raw_binds);
  add_builtins_dcc(H_dcc, C_dcc_serv);
  add_builtins(H_ctcp, my_ctcps);
  my_tcl_strings[0].buf = botname;
  add_tcl_strings(my_tcl_strings);
  my_tcl_ints[0].val = &use_console_r;
  add_tcl_ints(my_tcl_ints);
  add_tcl_commands(my_tcl_cmds);
  add_tcl_coups(my_tcl_coups);
  add_hook(HOOK_SECONDLY, (Function) server_secondly);
  add_hook(HOOK_10SECONDLY, (Function) server_10secondly);
  add_hook(HOOK_5MINUTELY, (Function) server_5minutely);
  add_hook(HOOK_MINUTELY, (Function) minutely_checks);
  add_hook(HOOK_QSERV, (Function) queue_server);
  add_hook(HOOK_PRE_REHASH, (Function) server_prerehash);
  add_hook(HOOK_REHASH, (Function) server_postrehash);
  add_hook(HOOK_DIE, (Function) server_die);
  mq.head = hq.head = modeq.head = NULL;
  mq.last = hq.last = modeq.last = NULL;
  mq.tot = hq.tot = modeq.tot = 0;
  mq.warned = hq.warned = modeq.warned = 0;
  double_warned = 0;
  newserver[0] = 0;
  newserverport = 0;
  curserv = 999;
  do_nettype();
  add_cfg(&CFG_NICK);
  add_cfg(&CFG_SERVERS);
  add_cfg(&CFG_SERVERS6);
  add_cfg(&CFG_REALNAME);
  set_cfg_str(NULL, STR("realname"), "A deranged product of evil coders");
  return NULL;
}
#endif