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IRC_LINKS(): Code cleanup; more documentation

This commit is contained in:
Alexander Barton 2012-01-04 22:49:18 +01:00
parent 6b62a5ec4f
commit 762b0325df
1 changed files with 54 additions and 32 deletions
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86
src/ngircd/irc-info.c
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@ -200,51 +200,73 @@ IRC_ISON( CLIENT *Client, REQUEST *Req )
} /* IRC_ISON */ } /* IRC_ISON */
/**
* Handler for the IRC "LINKS" command.
*
* See RFC 2812, 3.4.5 "Links message".
*
* @param Client The client from which this command has been received.
* @param Req Request structure with prefix and all parameters.
* @return CONNECTED or DISCONNECTED.
*/
GLOBAL bool GLOBAL bool
IRC_LINKS( CLIENT *Client, REQUEST *Req ) IRC_LINKS(CLIENT *Client, REQUEST *Req)
{ {
CLIENT *target, *from, *c; CLIENT *target, *from, *c;
char *mask; char *mask;
assert( Client != NULL ); assert(Client != NULL);
assert( Req != NULL ); assert(Req != NULL);
if(( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); IRC_SetPenalty(Client, 1);
/* Server-Mask ermitteln */ if (Req->argc > 2)
if( Req->argc > 0 ) mask = Req->argv[Req->argc - 1]; return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
else mask = "*"; Client_ID(Client), Req->command);
/* Absender ermitteln */ /* Get pointer to server mask or "*", if none given */
if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix ); if (Req->argc > 0)
else from = Client; mask = Req->argv[Req->argc - 1];
if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix ); else
mask = "*";
/* An anderen Server forwarden? */ if (Client_Type(Client) == CLIENT_SERVER)
if( Req->argc == 2 ) from = Client_Search(Req->prefix);
{ else
target = Client_Search( Req->argv[0] ); from = Client;
if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[0] ); if (!from)
else if( target != Client_ThisServer( )) return IRC_WriteStrClientPrefix( target, from, "LINKS %s %s", Req->argv[0], Req->argv[1] ); return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
Client_ID(Client), Req->prefix);
/* Forward? */
if (Req->argc == 2) {
target = Client_Search(Req->argv[0]);
if (! target || Client_Type(target) != CLIENT_SERVER)
return IRC_WriteStrClient(from, ERR_NOSUCHSERVER_MSG,
Client_ID(from),
Req->argv[0] );
else
if (target != Client_ThisServer())
return IRC_WriteStrClientPrefix(target, from,
"LINKS %s %s", Req->argv[0],
Req->argv[1]);
} }
/* Wer ist der Absender? */ c = Client_First();
if( Client_Type( Client ) == CLIENT_SERVER ) target = Client_Search( Req->prefix ); while (c) {
else target = Client; if (Client_Type(c) == CLIENT_SERVER) {
if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix ); if (!IRC_WriteStrClient(from, RPL_LINKS_MSG,
Client_ID(from), Client_ID(c),
c = Client_First( ); Client_ID(Client_TopServer(c)
while( c ) ? Client_TopServer(c)
{ : Client_ThisServer()),
if( Client_Type( c ) == CLIENT_SERVER ) Client_Hops(c), Client_Info(c)))
{ return DISCONNECTED;
if( ! IRC_WriteStrClient( target, RPL_LINKS_MSG, Client_ID( target ), Client_ID( c ), Client_ID( Client_TopServer( c ) ? Client_TopServer( c ) : Client_ThisServer( )), Client_Hops( c ), Client_Info( c ))) return DISCONNECTED;
} }
c = Client_Next( c ); c = Client_Next(c);
} }
return IRC_WriteStrClient(from, RPL_ENDOFLINKS_MSG,
IRC_SetPenalty( target, 1 ); Client_ID(from), mask);
return IRC_WriteStrClient( target, RPL_ENDOFLINKS_MSG, Client_ID( target ), mask );
} /* IRC_LINKS */ } /* IRC_LINKS */