* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* Please read the file COPYING, README and AUTHORS for more information.
- *
- * IRC commands for server links
*/
#include "portab.h"
+/**
+ * @file
+ * IRC commands for server links
+ */
+
#include "imp.h"
#include <assert.h>
#include <stdio.h>
#include <strings.h>
#include "defines.h"
-#include "resolve.h"
#include "conn.h"
#include "conn-func.h"
#include "conn-zip.h"
#include "conf.h"
-#include "client.h"
#include "channel.h"
#include "irc-write.h"
#include "lists.h"
#include "numeric.h"
#include "ngircd.h"
#include "irc-info.h"
+#include "op.h"
#include "exp.h"
#include "irc-server.h"
{
char str[LINE_LEN];
CLIENT *from, *c;
- bool ok;
int i;
CONN_ID con;
/* Is this server registering on our side, or are we connecting to
* a remote server? */
- con = Client_Conn( Client );
- if( Client_Token( Client ) != TOKEN_OUTBOUND )
- {
+ con = Client_Conn(Client);
+ if (Client_Token(Client) != TOKEN_OUTBOUND) {
/* Incoming connection, send user/pass */
- ok = true;
- if( ! IRC_WriteStrClient( Client, "PASS %s %s", Conf_Server[i].pwd_out, NGIRCd_ProtoID )) ok = false;
- else ok = IRC_WriteStrClient( Client, "SERVER %s 1 :%s", Conf_ServerName, Conf_ServerInfo );
- if( ! ok )
- {
- Conn_Close( con, "Unexpected server behavior!", NULL, false );
- return DISCONNECTED;
+ if (!IRC_WriteStrClient(Client, "PASS %s %s",
+ Conf_Server[i].pwd_out,
+ NGIRCd_ProtoID)
+ || !IRC_WriteStrClient(Client, "SERVER %s 1 :%s",
+ Conf_ServerName,
+ Conf_ServerInfo)) {
+ Conn_Close(con, "Unexpected server behavior!",
+ NULL, false);
+ return DISCONNECTED;
}
- Client_SetIntroducer( Client, Client );
- Client_SetToken( Client, 1 );
- }
- else
- {
- /* outgoing connect, we already sent SERVER and PASS to the peer */
- Client_SetToken( Client, atoi( Req->argv[1] ));
+ Client_SetIntroducer(Client, Client);
+ Client_SetToken(Client, 1);
+ } else {
+ /* outgoing connect, we already sent a SERVER and PASS
+ * command to the peer */
+ Client_SetToken(Client, atoi(Req->argv[1]));
}
/* Mark this connection as belonging to an configured server */
} /* IRC_NJOIN */
+/**
+ * Handler for the IRC command "SQUIT".
+ * See RFC 2813 section 4.1.2 and RFC 2812 section 3.1.8.
+ */
GLOBAL bool
-IRC_SQUIT( CLIENT *Client, REQUEST *Req )
+IRC_SQUIT(CLIENT * Client, REQUEST * Req)
{
- CLIENT *target;
- char msg[LINE_LEN + 64];
+ char msg[COMMAND_LEN], logmsg[COMMAND_LEN];
+ CLIENT *from, *target;
+ CONN_ID con;
- assert( Client != NULL );
- assert( Req != NULL );
+ assert(Client != NULL);
+ assert(Req != NULL);
- if( Req->argc != 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
+ if (Client_Type(Client) != CLIENT_SERVER
+ && !Client_HasMode(Client, 'o'))
+ return Op_NoPrivileges(Client, Req);
- Log( LOG_DEBUG, "Got SQUIT from %s for \"%s\": \"%s\" ...", Client_ID( Client ), Req->argv[0], Req->argv[1] );
+ /* Bad number of arguments? */
+ if (Req->argc != 2)
+ return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
+ Client_ID(Client), Req->command);
- target = Client_Search( Req->argv[0] );
- if( ! target )
- {
- Log( LOG_WARNING, "Got SQUIT from %s for unknown server \"%s\"!?", Client_ID( Client ), Req->argv[0] );
+ if (Client_Type(Client) == CLIENT_SERVER && Req->prefix) {
+ from = Client_Search(Req->prefix);
+ if (Client_Type(from) != CLIENT_SERVER
+ && !Op_Check(Client, Req))
+ return Op_NoPrivileges(Client, Req);
+ } else
+ from = Client;
+ if (!from)
+ return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
+ Client_ID(Client), Req->prefix);
+
+ Log(LOG_DEBUG, "Got SQUIT from %s for \"%s\": \"%s\" ...",
+ Client_ID(from), Req->argv[0], Req->argv[1]);
+
+ target = Client_Search(Req->argv[0]);
+ if (Client_Type(Client) != CLIENT_SERVER &&
+ target == Client_ThisServer())
+ return Op_NoPrivileges(Client, Req);
+ if (!target) {
+ /* The server is (already) unknown */
+ Log(LOG_WARNING,
+ "Got SQUIT from %s for unknown server \"%s\"!?",
+ Client_ID(Client), Req->argv[0]);
return CONNECTED;
}
- if( Req->argv[1][0] )
- {
- if( strlen( Req->argv[1] ) > LINE_LEN ) Req->argv[1][LINE_LEN] = '\0';
- snprintf( msg, sizeof( msg ), "%s (SQUIT from %s).", Req->argv[1], Client_ID( Client ));
- }
- else snprintf( msg, sizeof( msg ), "Got SQUIT from %s.", Client_ID( Client ));
+ con = Client_Conn(target);
- if( Client_Conn( target ) > NONE )
- {
- /* This server has the connection */
- if( Req->argv[1][0] ) Conn_Close( Client_Conn( target ), msg, Req->argv[1], true);
- else Conn_Close( Client_Conn( target ), msg, NULL, true);
- return DISCONNECTED;
- }
+ if (Req->argv[1][0])
+ if (Client_NextHop(from) != Client || con > NONE)
+ snprintf(msg, sizeof(msg), "%s (SQUIT from %s)",
+ Req->argv[1], Client_ID(from));
+ else
+ strlcpy(msg, Req->argv[1], sizeof(msg));
else
- {
- /* connection was on another server */
- Client_Destroy( target, msg, Req->argv[1], false );
- return CONNECTED;
+ snprintf(msg, sizeof(msg), "Got SQUIT from %s",
+ Client_ID(from));
+
+ if (con > NONE) {
+ /* We are directly connected to the target server, so we
+ * have to tear down the connection and to inform all the
+ * other remaining servers in the network */
+ IRC_SendWallops(Client_ThisServer(), Client_ThisServer(),
+ "Received SQUIT %s from %s: %s",
+ Req->argv[0], Client_ID(from),
+ Req->argv[1][0] ? Req->argv[1] : "-");
+ Conn_Close(con, NULL, msg, true);
+ if (con == Client_Conn(Client))
+ return DISCONNECTED;
+ } else {
+ /* This server is not directly connected, so the SQUIT must
+ * be forwarded ... */
+ if (Client_Type(from) != CLIENT_SERVER) {
+ /* The origin is not an IRC server, so don't evaluate
+ * this SQUIT but simply forward it */
+ IRC_WriteStrClientPrefix(Client_NextHop(target),
+ from, "SQUIT %s :%s", Req->argv[0], Req->argv[1]);
+ } else {
+ /* SQUIT has been generated by another server, so
+ * remove the target server from the network! */
+ logmsg[0] = '\0';
+ if (!strchr(msg, '('))
+ snprintf(logmsg, sizeof(logmsg),
+ "%s (SQUIT from %s)", Req->argv[1],
+ Client_ID(from));
+ Client_Destroy(target, logmsg[0] ? logmsg : msg,
+ msg, false);
+ }
}
+ return CONNECTED;
} /* IRC_SQUIT */
/* -eof- */
projects / ngircd-alex.git / blobdiff