commit - 1aeaf64c6662f3bc41cfd143fae58eee32f606cf
commit + 95f8b963a61c65268912363fe5479cd061574598
blob - 68bb84d87d9ee4bca4e58b8bc96e5c67f66e07d2
blob + ce6bcaca65da56054eb64017ee12ea41dfeb6af7
--- src/ngircd/irc-login.c
+++ src/ngircd/irc-login.c
#include "portab.h"
-static char UNUSED id[] = "$Id: irc-login.c,v 1.42 2005/03/21 22:22:09 alex Exp $";
+static char UNUSED id[] = "$Id: irc-login.c,v 1.43 2005/05/17 23:24:43 alex Exp $";
#include "imp.h"
#include <assert.h>
} /* IRC_PASS */
+/**
+ * IRC "NICK" command.
+ * This function implements the IRC command "NICK" which is used to register
+ * with the server, to change already registered nicknames and to introduce
+ * new users which are connected to other servers.
+ */
GLOBAL bool
IRC_NICK( CLIENT *Client, REQUEST *Req )
{
assert( Client != NULL );
assert( Req != NULL );
- /* Zumindest BitchX sendet NICK-USER in der falschen Reihenfolge. */
#ifndef STRICT_RFC
- if( Client_Type( Client ) == CLIENT_UNKNOWN || Client_Type( Client ) == CLIENT_GOTPASS || Client_Type( Client ) == CLIENT_GOTNICK || Client_Type( Client ) == CLIENT_GOTUSER || Client_Type( Client ) == CLIENT_USER || ( Client_Type( Client ) == CLIENT_SERVER && Req->argc == 1 ))
+ /* Some IRC clients, for example BitchX, send the NICK and USER
+ * commands in the wrong order ... */
+ if( Client_Type( Client ) == CLIENT_UNKNOWN
+ || Client_Type( Client ) == CLIENT_GOTPASS
+ || Client_Type( Client ) == CLIENT_GOTNICK
+ || Client_Type( Client ) == CLIENT_GOTUSER
+ || Client_Type( Client ) == CLIENT_USER
+ || ( Client_Type( Client ) == CLIENT_SERVER && Req->argc == 1 ))
#else
- if( Client_Type( Client ) == CLIENT_UNKNOWN || Client_Type( Client ) == CLIENT_GOTPASS || Client_Type( Client ) == CLIENT_GOTNICK || Client_Type( Client ) == CLIENT_USER || ( Client_Type( Client ) == CLIENT_SERVER && Req->argc == 1 ))
+ if( Client_Type( Client ) == CLIENT_UNKNOWN
+ || Client_Type( Client ) == CLIENT_GOTPASS
+ || Client_Type( Client ) == CLIENT_GOTNICK
+ || Client_Type( Client ) == CLIENT_USER
+ || ( Client_Type( Client ) == CLIENT_SERVER && Req->argc == 1 ))
#endif
{
- /* User-Registrierung bzw. Nick-Aenderung */
+ /* User registration or change of nickname */
- /* Falsche Anzahl Parameter? */
- if( Req->argc != 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
+ /* Wrong number of arguments? */
+ if( Req->argc != 1 )
+ return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG,
+ Client_ID( Client ),
+ Req->command );
- /* "Ziel-Client" ermitteln */
+ /* Search "target" client */
if( Client_Type( Client ) == CLIENT_SERVER )
{
target = Client_Search( Req->prefix );
- if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[0] );
+ if( ! target )
+ return IRC_WriteStrClient( Client,
+ ERR_NOSUCHNICK_MSG,
+ Client_ID( Client ),
+ Req->argv[0] );
}
else
{
- /* Ist der Client "restricted"? */
- if( Client_HasMode( Client, 'r' )) return IRC_WriteStrClient( Client, ERR_RESTRICTED_MSG, Client_ID( Client ));
+ /* Is this a restricted client? */
+ if( Client_HasMode( Client, 'r' ))
+ return IRC_WriteStrClient( Client,
+ ERR_RESTRICTED_MSG,
+ Client_ID( Client ));
+
target = Client;
}
#ifndef STRICT_RFC
- /* Wenn der Client zu seinem eigenen Nick wechseln will, so machen
- * wir nichts. So macht es das Original und mind. Snak hat probleme,
- * wenn wir es nicht so machen. Ob es so okay ist? Hm ... */
- if( strcmp( Client_ID( target ), Req->argv[0] ) == 0 ) return CONNECTED;
+ /* If the clients tries to change to its own nickname we won't
+ * do anything. This is how the original ircd behaves and some
+ * clients (for example Snak) expect it to be like this.
+ * But I doubt that this is "really the right thing" ... */
+ if( strcmp( Client_ID( target ), Req->argv[0] ) == 0 )
+ return CONNECTED;
#endif
- /* pruefen, ob Nick bereits vergeben. Speziallfall: der Client
- * will nur die Gross- und Kleinschreibung aendern. Das darf
- * er natuerlich machen :-) */
+ /* Check that the new nickname is available. Special case:
+ * the client only changes from/to upper to lower case. */
if( strcasecmp( Client_ID( target ), Req->argv[0] ) != 0 )
{
- if( ! Client_CheckNick( target, Req->argv[0] )) return CONNECTED;
+ if( ! Client_CheckNick( target, Req->argv[0] ))
+ return CONNECTED;
}
- if(( Client_Type( target ) != CLIENT_USER ) && ( Client_Type( target ) != CLIENT_SERVER ))
+ if(( Client_Type( target ) != CLIENT_USER )
+ && ( Client_Type( target ) != CLIENT_SERVER ))
{
- /* Neuer Client */
- Log( LOG_DEBUG, "Connection %d: got valid NICK command ...", Client_Conn( Client ));
+ /* New client */
+ Log( LOG_DEBUG, "Connection %d: got valid NICK command ...",
+ Client_Conn( Client ));
- /* Client-Nick registrieren */
+ /* Register new nickname of this client */
Client_SetID( target, Req->argv[0] );
- /* schon ein USER da? Dann registrieren! */
- if( Client_Type( Client ) == CLIENT_GOTUSER ) return Hello_User( Client );
- else Client_SetType( Client, CLIENT_GOTNICK );
+ /* If we received a valid USER command already then
+ * register the new client! */
+ if( Client_Type( Client ) == CLIENT_GOTUSER )
+ return Hello_User( Client );
+ else
+ Client_SetType( Client, CLIENT_GOTNICK );
}
else
{
- /* Nick-Aenderung */
+ /* Nickname change */
if( Client_Conn( target ) > NONE )
{
- /* lokaler Client */
- Log( LOG_INFO, "User \"%s\" changed nick (connection %d): \"%s\" -> \"%s\".", Client_Mask( target ), Client_Conn( target ), Client_ID( target ), Req->argv[0] );
+ /* Local client */
+ Log( LOG_INFO,
+ "User \"%s\" changed nick (connection %d): \"%s\" -> \"%s\".",
+ Client_Mask( target ), Client_Conn( target ),
+ Client_ID( target ), Req->argv[0] );
}
else
{
- /* Remote-Client */
- Log( LOG_DEBUG, "User \"%s\" changed nick: \"%s\" -> \"%s\".", Client_Mask( target ), Client_ID( target ), Req->argv[0] );
+ /* Remote client */
+ Log( LOG_DEBUG,
+ "User \"%s\" changed nick: \"%s\" -> \"%s\".",
+ Client_Mask( target ), Client_ID( target ),
+ Req->argv[0] );
}
- /* alle betroffenen User und Server ueber Nick-Aenderung informieren */
- if( Client_Type( Client ) == CLIENT_USER ) IRC_WriteStrClientPrefix( Client, Client, "NICK :%s", Req->argv[0] );
- IRC_WriteStrServersPrefix( Client, target, "NICK :%s", Req->argv[0] );
- IRC_WriteStrRelatedPrefix( target, target, false, "NICK :%s", Req->argv[0] );
-
- /* neuen Client-Nick speichern */
+ /* Inform all users and servers (which have to know)
+ * of this nickname change */
+ if( Client_Type( Client ) == CLIENT_USER )
+ IRC_WriteStrClientPrefix( Client, Client,
+ "NICK :%s",
+ Req->argv[0] );
+ IRC_WriteStrServersPrefix( Client, target,
+ "NICK :%s", Req->argv[0] );
+ IRC_WriteStrRelatedPrefix( target, target, false,
+ "NICK :%s", Req->argv[0] );
+
+ /* Register old nickname for WHOWAS queries */
+ Client_RegisterWhowas( target );
+
+ /* Save new nickname */
Client_SetID( target, Req->argv[0] );
+
IRC_SetPenalty( target, 2 );
}
}
else if( Client_Type( Client ) == CLIENT_SERVER )
{
- /* Server fuehrt neuen Client ein */
+ /* Server introduces new client */
/* Falsche Anzahl Parameter? */
if( Req->argc != 7 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
