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Annotation of fam/fam/Listener.h, Revision 1.1.1.1

1.1       trev        1: //  Copyright (C) 1999 Silicon Graphics, Inc.  All Rights Reserved.
                      2: //
                      3: //  This program is free software; you can redistribute it and/or modify it
                      4: //  under the terms of version 2 of the GNU General Public License as
                      5: //  published by the Free Software Foundation.
                      6: //
                      7: //  This program is distributed in the hope that it would be useful, but
                      8: //  WITHOUT ANY WARRANTY; without even the implied warranty of
                      9: //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  Further, any
                     10: //  license provided herein, whether implied or otherwise, is limited to
                     11: //  this program in accordance with the express provisions of the GNU
                     12: //  General Public License.  Patent licenses, if any, provided herein do not
                     13: //  apply to combinations of this program with other product or programs, or
                     14: //  any other product whatsoever.  This program is distributed without any
                     15: //  warranty that the program is delivered free of the rightful claim of any
                     16: //  third person by way of infringement or the like.  See the GNU General
                     17: //  Public License for more details.
                     18: //
                     19: //  You should have received a copy of the GNU General Public License along
                     20: //  with this program; if not, write the Free Software Foundation, Inc., 59
                     21: //  Temple Place - Suite 330, Boston MA 02111-1307, USA.
                     22:
                     23: #ifndef Listener_included
                     24: #define Listener_included
                     25:
                     26: #include <sys/types.h>
                     27:
                     28: #include "Boolean.h"
                     29:
                     30: //  Listener is an object that listens for connections on a socket.
                     31: //  It registers itself with portmapper.
                     32: //
                     33: //  If a Listener was started_by_inetd, then it listens on the
                     34: //  already-open file descriptor 0.  Otherwise, it opens a new socket.
                     35: //
                     36: //  A Listener creates TCP_Client and RemoteClient objects as
                     37: //  connections come in.
                     38: //
                     39: //  FAMPROG and FAMVERS, the SUN RPC program number and version, are
                     40: //  defined here, because I didn't think of a better place to define them.
                     41:
                     42: class TCP_Client;
                     43:
                     44: class Listener {
                     45:
                     46: public:
                     47:
                     48:     enum { RENDEZVOUS_FD = 0 };		// descriptor 0 opened by inetd
                     49:     enum { FAMPROG = 391002, FAMVERS = 2 };
                     50:
                     51:
                     52:     Listener(bool started_by_inetd,
                     53:              bool local_only,
                     54: 	     unsigned long program = FAMPROG, unsigned long version = FAMVERS);
                     55:     ~Listener();
                     56:
                     57:     static void create_local_client(TCP_Client &inet_client, uid_t uid);
                     58:
                     59: private:
                     60:
                     61:     //  Instance Variables
                     62:
                     63:     unsigned long program;
                     64:     unsigned long version;
                     65:     int rendezvous_fd;
                     66:     bool started_by_inetd;
                     67:     int _ugly_sock;
                     68:     bool local_only;
                     69:
                     70:     //  Private Instance Methods
                     71:
                     72:     void dirty_ugly_hack();
                     73:     void set_rendezvous_fd(int);
                     74:
                     75:     //  Class Methods
                     76:
                     77:     static void accept_client(int fd, void *closure);
                     78:     static void accept_ugly_hack(int fd, void *closure);
                     79:     static void read_ugly_hack(int fd, void *closure);
                     80:     static void accept_localclient(int fd, void *closure);
                     81: };
                     82:
                     83: #endif /* !Listener_included */