--- /dev/null
+/*
+ * IRC - Internet Relay Chat, ircd/m_uping.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.
+ */
+#if 0
+/*
+ * No need to include handlers.h here the signatures must match
+ * and we don't need to force a rebuild of all the handlers everytime
+ * we add a new one to the list. --Bleep
+ */
+#include "handlers.h"
+#endif /* 0 */
+#include "client.h"
+#include "hash.h"
+#include "ircd.h"
+#include "ircd_reply.h"
+#include "ircd_string.h"
+#include "match.h"
+#include "msg.h"
+#include "numeric.h"
+#include "numnicks.h"
+#include "s_conf.h"
+#include "s_user.h"
+#include "send.h"
+#include "uping.h"
+
+
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+
+/*
+ * ms_uping - server message handler
+ *
+ * m_uping -- by Run
+ *
+ * parv[0] = sender prefix
+ * parv[1] = pinged server
+ * parv[2] = port
+ * parv[3] = hunted server
+ * parv[4] = number of requested pings
+ */
+int ms_uping(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
+{
+ struct ConfItem *aconf;
+ int port;
+ int count;
+
+ assert(0 != cptr);
+ assert(0 != sptr);
+
+ if (!IsAnOper(sptr)) {
+ sendto_one(sptr, err_str(ERR_NOPRIVILEGES), me.name, parv[0]);
+ return 0;
+ }
+
+ if (parc < 5) {
+ sendto_one(sptr, err_str(ERR_NEEDMOREPARAMS), me.name, parv[0], "UPING");
+ return 0;
+ }
+
+ if (hunt_server(1, cptr, sptr, "%s%s " TOK_UPING " %s %s %s %s", 3, parc, parv) != HUNTED_ISME)
+ return 0;
+ /*
+ * Determine port: First user supplied, then default : 7007
+ */
+ if (EmptyString(parv[2]) || (port = atoi(parv[2])) <= 0)
+ port = atoi(UDP_PORT);
+
+ if (EmptyString(parv[4]) || (count = atoi(parv[4])) <= 0)
+ {
+ if (MyUser(sptr))
+ sendto_one(sptr, ":%s NOTICE %s :UPING: Illegal number of packets: %s",
+ me.name, parv[0], parv[4]);
+ else
+ sendto_one(sptr, "%s " TOK_NOTICE " %s%s :UPING: Illegal number of packets: %s",
+ NumServ(&me), NumNick(sptr), parv[4]);
+ return 0;
+ }
+ /*
+ * Check if a CONNECT would be possible at all (adapted from m_connect)
+ */
+ if ((aconf = conf_find_server(parv[1])))
+ uping_server(sptr, aconf, port, count);
+ else {
+ if (MyUser(sptr))
+ sendto_one(sptr, ":%s NOTICE %s :UPING: Host %s not listed in ircd.conf",
+ me.name, parv[0], parv[1]);
+ else
+ sendto_one(sptr, "%s " TOK_NOTICE " %s%s :UPING: Host %s not listed in ircd.conf",
+ NumServ(&me), NumNick(sptr), parv[1]);
+ }
+ return 0;
+}
+
+/*
+ * mo_uping - oper message handler
+ *
+ * m_uping -- by Run
+ *
+ * parv[0] = sender prefix
+ * parv[1] = pinged server
+ * parv[2] = port
+ * parv[3] = hunted server
+ * parv[4] = number of requested pings
+ */
+int mo_uping(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
+{
+ struct ConfItem *aconf;
+ int port;
+ int count;
+
+ assert(0 != cptr);
+ assert(0 != sptr);
+ assert(cptr == sptr);
+
+ assert(IsAnOper(sptr));
+
+ if (parc < 2) {
+ sendto_one(sptr, err_str(ERR_NEEDMOREPARAMS), me.name, parv[0], "UPING");
+ return 0;
+ }
+
+ if (parc == 2) {
+ parv[parc++] = UDP_PORT;
+ parv[parc++] = me.name;
+ parv[parc++] = "5";
+ }
+ else if (parc == 3) {
+ if (IsDigit(*parv[2]))
+ parv[parc++] = me.name;
+ else {
+ parv[parc++] = parv[2];
+ parv[2] = UDP_PORT;
+ }
+ parv[parc++] = "5";
+ }
+ else if (parc == 4) {
+ if (IsDigit(*parv[2])) {
+ if (IsDigit(*parv[3])) {
+ parv[parc++] = parv[3];
+ parv[3] = me.name;
+ }
+ else
+ parv[parc++] = "5";
+ }
+ else {
+ parv[parc++] = parv[3];
+ parv[3] = parv[2];
+ parv[2] = UDP_PORT;
+ }
+ }
+ if (hunt_server(1, cptr, sptr, "%s%s " TOK_UPING " %s %s %s %s", 3, parc, parv) != HUNTED_ISME)
+ return 0;
+ /*
+ * Determine port: First user supplied, then default : 7007
+ */
+ if (EmptyString(parv[2]) || (port = atoi(parv[2])) <= 0)
+ port = atoi(UDP_PORT);
+
+ if (EmptyString(parv[4]) || (count = atoi(parv[4])) <= 0)
+ {
+ if (MyUser(sptr))
+ sendto_one(sptr, ":%s NOTICE %s :UPING: Illegal number of packets: %s",
+ me.name, parv[0], parv[4]);
+ else
+ sendto_one(sptr, "%s " TOK_NOTICE " %s%s :UPING: Illegal number of packets: %s",
+ NumServ(&me), NumNick(sptr), parv[4]);
+ return 0;
+ }
+ /*
+ * Check if a CONNECT would be possible at all (adapted from m_connect)
+ */
+ if ((aconf = conf_find_server(parv[1])))
+ uping_server(sptr, aconf, port, count);
+ else {
+ if (MyUser(sptr))
+ sendto_one(sptr, ":%s NOTICE %s :UPING: Host %s not listed in ircd.conf",
+ me.name, parv[0], parv[1]);
+ else
+ sendto_one(sptr, "%s " TOK_NOTICE " %s%s :UPING: Host %s not listed in ircd.conf",
+ NumServ(&me), NumNick(sptr), parv[1]);
+ }
+ return 0;
+}
+
+
+#if 0
+/*
+ * m_uping -- by Run
+ *
+ * parv[0] = sender prefix
+ * parv[1] = pinged server
+ * parv[2] = port
+ * parv[3] = hunted server
+ * parv[4] = number of requested pings
+ */
+int m_uping(struct Client* cptr, struct Client *sptr, int parc, char *parv[])
+{
+ struct ConfItem *aconf;
+ int port;
+ int fd;
+ struct UPing* pptr = 0;
+
+ if (!IsPrivileged(sptr))
+ {
+ sendto_one(sptr, err_str(ERR_NOPRIVILEGES), me.name, parv[0]);
+ return -1;
+ }
+
+ if (parc < 2)
+ {
+ sendto_one(sptr, err_str(ERR_NEEDMOREPARAMS), me.name, parv[0], "UPING");
+ return 0;
+ }
+
+ if (MyUser(sptr))
+ {
+ if (parc == 2)
+ {
+ parv[parc++] = UDP_PORT;
+ parv[parc++] = me.name;
+ parv[parc++] = "5";
+ }
+ else if (parc == 3)
+ {
+ if (IsDigit(*parv[2]))
+ parv[parc++] = me.name;
+ else
+ {
+ parv[parc++] = parv[2];
+ parv[2] = UDP_PORT;
+ }
+ parv[parc++] = "5";
+ }
+ else if (parc == 4)
+ {
+ if (IsDigit(*parv[2]))
+ {
+ if (IsDigit(*parv[3]))
+ {
+ parv[parc++] = parv[3];
+ parv[3] = me.name;
+ }
+ else
+ parv[parc++] = "5";
+ }
+ else
+ {
+ parv[parc++] = parv[3];
+ parv[3] = parv[2];
+ parv[2] = UDP_PORT;
+ }
+ }
+ }
+ if (hunt_server(1, cptr, sptr, ":%s UPING %s %s %s %s", 3, parc, parv) != HUNTED_ISME)
+ return 0;
+
+ if (BadPtr(parv[4]) || atoi(parv[4]) <= 0)
+ {
+ if (MyUser(sptr) || Protocol(cptr) < 10)
+ sendto_one(sptr, ":%s NOTICE %s :UPING: Illegal number of packets: %s",
+ me.name, parv[0], parv[4]);
+ else
+ sendto_one(sptr, "%s NOTICE %s%s :UPING: Illegal number of packets: %s",
+ NumServ(&me), NumNick(sptr), parv[4]);
+ return 0;
+ }
+
+ /* Check if a CONNECT would be possible at all (adapted from m_connect) */
+ for (aconf = GlobalConfList; aconf; aconf = aconf->next)
+ {
+ if (aconf->status == CONF_SERVER &&
+ match(parv[1], aconf->name) == 0)
+ break;
+ }
+ if (!aconf)
+ {
+ for (aconf = GlobalConfList; aconf; aconf = aconf->next)
+ {
+ if (aconf->status == CONF_SERVER &&
+ (match(parv[1], aconf->host) == 0 ||
+ match(parv[1], strchr(aconf->host, '@') + 1) == 0))
+ break;
+ }
+ }
+ if (!aconf)
+ {
+ if (MyUser(sptr) || Protocol(cptr) < 10)
+ sendto_one(sptr, ":%s NOTICE %s :UPING: Host %s not listed in ircd.conf",
+ me.name, parv[0], parv[1]);
+ else
+ sendto_one(sptr,
+ "%s NOTICE %s%s :UPING: Host %s not listed in ircd.conf",
+ NumServ(&me), NumNick(sptr), parv[1]);
+ return 0;
+ }
+
+ if (IsUPing(sptr))
+ cancel_ping(sptr, sptr); /* Cancel previous ping request */
+
+ /*
+ * Determine port: First user supplied, then default : 7007
+ */
+ if (BadPtr(parv[2]) || (port = atoi(parv[2])) <= 0)
+ port = atoi(UDP_PORT);
+
+ if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) == -1) {
+ int err = errno;
+ sendto_ops("m_uping: socket: %s", (err != EMFILE)
+ ? ((strerror(err)) ? strerror(err) : "Unknown error") : "No more sockets");
+ if (MyUser(sptr) || Protocol(cptr) < 10)
+ sendto_one(sptr,
+ ":%s NOTICE %s :UPING: Unable to create udp ping socket",
+ me.name, parv[0]);
+ else
+ sendto_one(sptr,
+ "%s NOTICE %s%s :UPING: Unable to create udp ping socket",
+ NumServ(&me), NumNick(sptr));
+ ircd_log(L_ERROR, "UPING: Unable to create UDP socket");
+ return 0;
+ }
+
+ if (!os_set_nonblocking(fd)) {
+ if (MyUser(sptr) || Protocol(cptr) < 10)
+ sendto_one(sptr, ":%s NOTICE %s :UPING: Can't set fd non-blocking",
+ me.name, parv[0]);
+ else
+ sendto_one(sptr, "%s NOTICE %s%s :UPING: Can't set fd non-blocking",
+ NumServ(&me), NumNick(sptr));
+ close(fd);
+ return 0;
+ }
+ pptr = (struct UPing*) MyMalloc(sizeof(struct UPing));
+ assert(0 != pptr);
+ memset(pptr, 0, sizeof(struct UPing));
+
+ pptr->fd = fd;
+ pptr->sin.sin_port = htons(port);
+ pptr->sin.sin_addr.s_addr = aconf->ipnum.s_addr;
+ pptr->sin.sin_family = AF_INET;
+ pptr->count = IRCD_MIN(20, atoi(parv[4]));
+ strcpy(pptr->name, aconf->host);
+ pptr->client = sptr;
+ pptr->index = -1;
+
+ pptr->next = pingList;
+ pingList = pptr;
+
+ SetUPing(sptr);
+ ping_server(pptr);
+ return 0;
+}
+#endif /* 0 */
+
projects / ircu2.10.12-pk.git / blobdiff