159 lines
5.8 KiB
C
159 lines
5.8 KiB
C
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#ifndef GATEWAY_H_INCLUDED
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#define GATEWAY_H_INCLUDED
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#define GATEWAY_H_VERSION "$Id: gateway.h,v 1.12 2008/12/24 17:06:19 fabiankeil Exp $"
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/*********************************************************************
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*
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* File : $Source: /cvsroot/ijbswa/current/gateway.h,v $
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*
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* Purpose : Contains functions to connect to a server, possibly
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* using a "gateway" (i.e. HTTP proxy and/or SOCKS4
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* proxy). Also contains the list of gateway types.
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*
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* Copyright : Written by and Copyright (C) 2001 the SourceForge
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* Privoxy team. http://www.privoxy.org/
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*
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* Based on the Internet Junkbuster originally written
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* by and Copyright (C) 1997 Anonymous Coders and
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* Junkbusters Corporation. http://www.junkbusters.com
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*
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* This program is free software; you can redistribute it
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* and/or modify it under the terms of the GNU General
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* Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will
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* be useful, but WITHOUT ANY WARRANTY; without even the
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* implied warranty of MERCHANTABILITY or FITNESS FOR A
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* PARTICULAR PURPOSE. See the GNU General Public
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* License for more details.
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*
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* The GNU General Public License should be included with
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* this file. If not, you can view it at
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* http://www.gnu.org/copyleft/gpl.html
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* or write to the Free Software Foundation, Inc., 59
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* Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* Revisions :
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* $Log: gateway.h,v $
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* Revision 1.12 2008/12/24 17:06:19 fabiankeil
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* Keep a thread around to timeout alive connections
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* even if no new requests are coming in.
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*
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* Revision 1.11 2008/11/13 09:08:42 fabiankeil
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* Add new config option: keep-alive-timeout.
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*
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* Revision 1.10 2008/10/09 18:21:41 fabiankeil
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* Flush work-in-progress changes to keep outgoing connections
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* alive where possible. Incomplete and mostly #ifdef'd out.
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*
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* Revision 1.9 2006/07/18 14:48:46 david__schmidt
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* Reorganizing the repository: swapping out what was HEAD (the old 3.1 branch)
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* with what was really the latest development (the v_3_0_branch branch)
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*
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* Revision 1.7 2002/03/26 22:29:54 swa
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* we have a new homepage!
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*
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* Revision 1.6 2002/03/25 22:12:45 oes
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* Added fix for undefined INADDR_NONE on Solaris by Bart Schelstraete
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*
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* Revision 1.5 2002/03/24 13:25:43 swa
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* name change related issues
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*
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* Revision 1.4 2002/03/09 20:03:52 jongfoster
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* - Making various functions return int rather than size_t.
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* (Undoing a recent change). Since size_t is unsigned on
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* Windows, functions like read_socket that return -1 on
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* error cannot return a size_t.
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*
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* THIS WAS A MAJOR BUG - it caused frequent, unpredictable
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* crashes, and also frequently caused JB to jump to 100%
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* CPU and stay there. (Because it thought it had just
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* read ((unsigned)-1) == 4Gb of data...)
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*
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* - The signature of write_socket has changed, it now simply
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* returns success=0/failure=nonzero.
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*
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* - Trying to get rid of a few warnings --with-debug on
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* Windows, I've introduced a new type "jb_socket". This is
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* used for the socket file descriptors. On Windows, this
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* is SOCKET (a typedef for unsigned). Everywhere else, it's
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* an int. The error value can't be -1 any more, so it's
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* now JB_INVALID_SOCKET (which is -1 on UNIX, and in
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* Windows it maps to the #define INVALID_SOCKET.)
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*
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* - The signature of bind_port has changed.
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*
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* Revision 1.3 2001/07/29 18:58:15 jongfoster
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* Removing nested #includes, adding forward declarations for needed
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* structures, and changing the #define _FILENAME_H to FILENAME_H_INCLUDED.
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*
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* Revision 1.2 2001/06/07 23:12:14 jongfoster
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* Removing gateways[] list - no longer used.
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* Replacing function pointer in struct gateway with a directly
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* called function forwarded_connect(), which can do the common
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* task of deciding whether to connect to the web server or HTTP
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* proxy.
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* Replacing struct gateway with struct forward_spec
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*
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* Revision 1.1.1.1 2001/05/15 13:58:54 oes
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* Initial import of version 2.9.3 source tree
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*
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*
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*********************************************************************/
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct forward_spec;
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struct http_request;
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struct client_state;
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extern jb_socket forwarded_connect(const struct forward_spec * fwd,
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struct http_request *http,
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struct client_state *csp);
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#ifdef FEATURE_CONNECTION_KEEP_ALIVE
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/*
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* Default number of seconds after which an
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* open connection will no longer be reused.
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*/
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#define DEFAULT_KEEP_ALIVE_TIMEOUT 180
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extern void set_keep_alive_timeout(int timeout);
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extern void initialize_reusable_connections(void);
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extern void forget_connection(jb_socket sfd);
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extern void remember_connection(jb_socket sfd,
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const struct http_request *http,
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const struct forward_spec *fwd);
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extern int close_unusable_connections(void);
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#endif /* FEATURE_CONNECTION_KEEP_ALIVE */
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/*
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* Solaris fix
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*/
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#ifndef INADDR_NONE
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#define INADDR_NONE -1
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#endif
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/*
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* Revision control strings from this header and associated .c file
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*/
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extern const char gateway_rcs[];
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extern const char gateway_h_rcs[];
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* ndef GATEWAY_H_INCLUDED */
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/*
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Local Variables:
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tab-width: 3
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end:
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*/
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