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67 lines
2.0 KiB
67 lines
2.0 KiB
15 years ago
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//---------------------------------------------------------------------------
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//
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// kPPP: A pppd front end for the KDE project
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//
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//---------------------------------------------------------------------------
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//
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// (c) 1997-1998 Bernd Johannes Wuebben <wuebben@kde.org>
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// (c) 1997-1999 Mario Weilguni <mweilguni@kde.org>
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// (c) 1998-1999 Harri Porten <porten@kde.org>
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//
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// derived from Jay Painters "ezppp"
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//
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//---------------------------------------------------------------------------
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//
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// $Id$
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//
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//---------------------------------------------------------------------------
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//
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// This program is free software; you can redistribute it and-or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public
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// License along with this program; if not, write to the Free
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// Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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//
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//---------------------------------------------------------------------------
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <sys/types.h>
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#ifdef HAVE_SYS_STAT_H
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#include <sys/stat.h>
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#endif
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#include <unistd.h>
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#include <stdio.h>
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#include <limits.h>
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#include "utils.h"
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#include "kpppconfig.h"
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// in case of error, we simply return "0" and hope it's ok :-)
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int pppInterfaceNumber() {
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char ifname[PATH_MAX];
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for(int i = 0; i < 8; i++) {
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snprintf(ifname, sizeof(ifname), "%s/ppp%d.pid", PPP_PID_DIR, i);
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if(access(ifname, F_OK) == -1)
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return i;
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}
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// panic
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fprintf(stderr, "pppInterfaceNumber: cannot detect ppp interface number!\n");
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return 0;
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}
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