2003-06-15 20:28:30 +00:00
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// The contents of this file are subject to the BOINC Public License
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2002-06-06 18:37:05 +00:00
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// Version 1.0 (the "License"); you may not use this file except in
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// compliance with the License. You may obtain a copy of the License at
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2003-06-15 20:28:30 +00:00
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// http://boinc.berkeley.edu/license_1.0.txt
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2003-08-05 22:49:20 +00:00
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//
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2002-06-06 18:37:05 +00:00
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// Software distributed under the License is distributed on an "AS IS"
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// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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// License for the specific language governing rights and limitations
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2003-08-05 22:49:20 +00:00
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// under the License.
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//
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// The Original Code is the Berkeley Open Infrastructure for Network Computing.
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//
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2002-06-06 18:37:05 +00:00
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// The Initial Developer of the Original Code is the SETI@home project.
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// Portions created by the SETI@home project are Copyright (C) 2002
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2003-08-05 22:49:20 +00:00
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// University of California at Berkeley. All Rights Reserved.
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//
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2002-06-06 18:37:05 +00:00
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// Contributor(s):
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//
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2004-03-04 11:41:43 +00:00
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#include "stdafx.h"
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2002-06-06 18:37:05 +00:00
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2002-08-09 21:43:19 +00:00
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#include "win_net.h"
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2002-12-18 20:20:04 +00:00
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#include "client_state.h"
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2002-06-06 18:37:05 +00:00
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2004-03-04 11:41:43 +00:00
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#define DIAL_WAIT 60 // seconds after dial to wait (in case of cancel)
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#define CONFIRM_WAIT 60 // seconds after user says not to connect to ask again
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#define CLOSE_WAIT 5 // seconds after last call to close that the connection should be terminated
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2002-12-18 20:20:04 +00:00
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2004-03-04 11:41:43 +00:00
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int net_ref_count = -1; // -1 closed, 0 open but not used, >0 number of users
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double net_last_req_time = 0; // last time user was requested to connect in seconds
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double net_last_dial_time = 0; // last time modem was dialed
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double net_close_time = 0; // 0 don't close, >0 time when network connection should be terminated in seconds
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2002-12-18 20:20:04 +00:00
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bool dialed = false;
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2002-06-06 18:37:05 +00:00
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2002-08-09 21:43:19 +00:00
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int NetOpen( void )
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{
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2003-08-05 22:49:20 +00:00
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if(net_ref_count >= 0) {
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net_ref_count ++;
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return 0;
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}
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2002-12-18 20:20:04 +00:00
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2002-08-09 21:43:19 +00:00
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WSADATA wsdata;
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WORD wVersionRequested;
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2003-08-05 22:49:20 +00:00
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int rc, addrlen = 16;
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typedef BOOL (WINAPI *GetStateProc)( OUT LPDWORD lpdwFlags, IN DWORD dwReserved);
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typedef BOOL (WINAPI *AutoDialProc)( IN DWORD dwFlags, IN DWORD dwReserved);
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GetStateProc GetState = NULL;
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AutoDialProc AutoDial = NULL;
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DWORD connectionFlags;
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HMODULE libmodule = NULL;
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libmodule = LoadLibrary("wininet.dll");
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if (libmodule) {
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GetState = (GetStateProc)GetProcAddress(libmodule, "InternetGetConnectedState");
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AutoDial = (AutoDialProc)GetProcAddress(libmodule, "InternetAutodial");
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if (GetState && AutoDial) {
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rc = (*GetState)(&connectionFlags, 0);
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// Don't Autodial if already connected to Internet by Modem or LAN
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if (!rc) {
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if((double)time(NULL) < net_last_dial_time + CONFIRM_WAIT) {
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return -1;
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}
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2004-01-19 20:53:40 +00:00
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#if !defined(_WIN32) && !defined(_CONSOLE)
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2003-08-05 22:49:20 +00:00
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if(gstate.global_prefs.confirm_before_connecting) {
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net_last_req_time = (double)time(NULL);
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if(!RequestNetConnect()) {
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return -1;
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}
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}
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2003-11-05 00:13:16 +00:00
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#endif
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2003-08-05 22:49:20 +00:00
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net_last_dial_time = (double)time(NULL);
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rc = (*AutoDial)(INTERNET_AUTODIAL_FORCE_UNATTENDED, 0);
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if (rc) {
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dialed = true;
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} else {
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// InternetAutodial() returns error 86 for some users
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// and 668 for some other users, but a subsequent call
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// to gethostbyname() or connect() autodials successfully.
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// So (with one exception) we ignore failure returns
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// from InternetAutodial() to work around this problem.
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// Error 86 is "The specified Network Password is not correct."
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// Error 668 is RAS Error "The connection dropped."
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rc = GetLastError();
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// Don't continue if busy signal, no answer or user cancelled
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if (rc == ERROR_USER_DISCONNECTION) {
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return -1;
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}
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}
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}
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}
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}
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wVersionRequested = MAKEWORD(1, 1);
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rc = WSAStartup(wVersionRequested, &wsdata);
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if (rc) {
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return -1;
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}
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net_ref_count = 1;
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return 0;
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2002-08-09 21:43:19 +00:00
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}
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void NetClose( void )
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{
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2003-08-05 22:49:20 +00:00
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if(net_ref_count > 0) net_ref_count --;
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if(net_ref_count == 0) {
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net_close_time = (double)time(NULL) + CLOSE_WAIT;
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}
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2002-08-09 21:43:19 +00:00
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}
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2002-12-18 20:20:04 +00:00
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void NetCheck( void ) {
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2003-08-05 22:49:20 +00:00
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if(net_ref_count == 0 && net_close_time > 0 && net_close_time < (double)time(NULL)) {
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WSACleanup();
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typedef BOOL (WINAPI *HangupProc)(IN DWORD dwReserved);
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HangupProc HangUp = NULL;
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HMODULE libmodule = NULL;
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// Hang up the modem if we dialed it
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if (dialed && gstate.global_prefs.hangup_if_dialed) {
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libmodule = LoadLibrary("wininet.dll");
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if (libmodule) {
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HangUp = (HangupProc)GetProcAddress(libmodule, "InternetAutodialHangup");
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if (HangUp) int rc = (* HangUp)(0);
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}
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}
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dialed = false;
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net_ref_count = -1;
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net_close_time = 0;
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}
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2002-12-18 20:20:04 +00:00
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}
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