Merge branch 'u2_10_12_branch' of git://git.code.sf.net/p/undernet-ircu/ircu2

[ircu2.10.12-pk.git] / ircd / m_pong.c

diff --git a/ircd/m_pong.c b/ircd/m_pong.c
new file mode 100644 (file)
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--- /dev/null
+++ b/ircd/m_pong.c
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+/*
+ * IRC - Internet Relay Chat, ircd/m_pong.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.
+ *
+ * $Id$
+ */
+
+/*
+ * 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.
+ */
+#include "config.h"
+
+#include "client.h"
+#include "hash.h"
+#include "ircd.h"
+#include "ircd_log.h"
+#include "ircd_reply.h"
+#include "ircd_string.h"
+#include "msg.h"
+#include "numeric.h"
+#include "numnicks.h"
+#include "opercmds.h"
+#include "s_auth.h"
+#include "s_user.h"
+#include "send.h"
+
+/* #include <assert.h> -- Now using assert in ircd_log.h */
+#include <string.h>
+#include <stdlib.h>
+
+/*
+ * ms_pong - server message handler
+ *
+ * parv[0] = sender prefix
+ * parv[1] = origin
+ * parv[2] = destination
+ */
+int ms_pong(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
+{
+  char*          origin;
+  char*          destination;
+  assert(0 != cptr);
+  assert(0 != sptr);
+  assert(IsServer(cptr));
+
+  if (parc < 2 || EmptyString(parv[1])) {
+    return protocol_violation(sptr,"No Origin on PONG");
+  }
+  origin      = parv[1];
+  destination = parv[2];
+  ClearPingSent(cptr);
+  ClearPingSent(sptr);
+  cli_lasttime(cptr) = CurrentTime;
+
+  if (parc > 5)
+  {
+    /* AsLL pong */
+    cli_serv(cptr)->asll_rtt = atoi(militime_float(parv[3]));
+    cli_serv(cptr)->asll_to = atoi(parv[4]);
+    cli_serv(cptr)->asll_from = atoi(militime_float(parv[5]));
+    cli_serv(cptr)->asll_last = CurrentTime;
+    return 0;
+  }
+  
+  if (EmptyString(destination))
+    return 0;
+  
+  if (*destination == '!')
+  {
+    /* AsLL ping reply from a non-AsLL server */
+    cli_serv(cptr)->asll_rtt = atoi(militime_float(destination + 1));
+  }
+  else if (0 != ircd_strcmp(destination, cli_name(&me)))
+  {
+    struct Client* acptr;
+    if ((acptr = FindClient(destination)))
+      sendcmdto_one(sptr, CMD_PONG, acptr, "%s %s", origin, destination);
+  }
+  return 0;
+}
+
+/*
+ * mr_pong - registration message handler
+ *
+ * parv[0] = sender prefix
+ * parv[1] = pong response echo
+ * NOTE: cptr is always unregistered here
+ */
+int mr_pong(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
+{
+  assert(0 != cptr);
+  assert(cptr == sptr);
+  assert(!IsRegistered(sptr));
+
+  ClearPingSent(cptr);
+  return (parc > 1) ? auth_set_pong(cli_auth(sptr), strtoul(parv[parc - 1], NULL, 10)) : 0;
+}
+
+/*
+ * m_pong - normal message handler
+ *
+ * parv[0] = sender prefix
+ * parv[1] = origin
+ * parv[2] = destination
+ */
+int m_pong(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
+{
+  assert(0 != cptr);
+  assert(cptr == sptr);
+
+  ClearPingSent(cptr);
+  cli_lasttime(cptr) = CurrentTime;
+  return 0;
+}