X-Git-Url: https://arthur.barton.de/cgi-bin/gitweb.cgi?p=ngircd-alex.git;a=blobdiff_plain;f=src%2Fngircd%2Fparse.c;h=31f048cf673408f08737647d66b8aba0bc807612;hp=8203dd0ecb2687617af5f911db820733d239d35d;hb=15775e67900d914cc174aa80e615fa24d65d115c;hpb=62f705f97e580fe61520793b3387081915f240ba

diff --git a/src/ngircd/parse.c b/src/ngircd/parse.c
index 8203dd0e..31f048cf 100644
--- a/src/ngircd/parse.c
+++ b/src/ngircd/parse.c
@@ -276,11 +276,24 @@ Validate_Prefix( CONN_ID Idx, REQUEST *Req, bool *Closed )
 
 	*Closed = false;
 
-	if( ! Req->prefix ) return true;
-
 	client = Conn_GetClient( Idx );
 	assert( client != NULL );
 
+	if (!Req->prefix && Client_Type(client) == CLIENT_SERVER
+	    && strcasecmp(Req->command, "ERROR") != 0
+	    && strcasecmp(Req->command, "PING") != 0)
+	{
+		Log(LOG_ERR,
+		    "Received command without prefix (connection %d, command \"%s\")!?",
+		    Idx, Req->command);
+		if (!Conn_WriteStr(Idx, "ERROR :Prefix missing"))
+			*Closed = true;
+		return false;
+	}
+
+	if (!Req->prefix)
+		return true;
+
 	/* only validate if this connection is already registered */
 	if (Client_Type(client) != CLIENT_USER
 	    && Client_Type(client) != CLIENT_SERVER