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104 lines
3.7 KiB
C++
104 lines
3.7 KiB
C++
/*
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* rtcwakeaction.cpp - KAuth helper application to execute rtcwake commands
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* Program: kalarm
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* Copyright © 2011 by David Jarvie <djarvie@kde.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "rtcwakeaction.h"
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#include <kglobal.h>
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#include <klocale.h>
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#include <kprocess.h>
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#include <kdatetime.h>
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#include <QDebug>
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#include <stdio.h>
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RtcWakeAction::RtcWakeAction()
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{
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KGlobal::locale()->insertCatalog(QLatin1String("kalarm"));
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}
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ActionReply RtcWakeAction::settimer(const QVariantMap& args)
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{
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unsigned t = args[QLatin1String("time")].toUInt();
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qDebug() << "RtcWakeAction::settimer(" << t << ")";
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// Find the rtcwake executable
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QString exe(QLatin1String("/usr/sbin/rtcwake")); // default location
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FILE* wh = popen("whereis -b rtcwake", "r");
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if (wh)
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{
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char buff[512] = { '\0' };
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fgets(buff, sizeof(buff), wh);
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pclose(wh);
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// The string should be in the form "rtcwake: /path/rtcwake"
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char* start = strchr(buff, ':');
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if (start)
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{
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if (*++start == ' ')
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++start;
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char* end = strpbrk(start, " \r\n");
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if (end)
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*end = 0;
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if (*start)
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{
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exe = QString::fromLocal8Bit(start);
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qDebug() << "RtcWakeAction::settimer:" << exe;
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}
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}
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}
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// Set the wakeup by executing the rtcwake command
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int result = -2; // default = command not found
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KProcess proc;
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if (!exe.isEmpty())
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{
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// The wakeup time is set using a time from now ("-s") in preference to
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// an absolute time ("-t") so that if the hardware clock is not in sync
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// with the system clock, the alarm will still occur at the correct time.
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// The "-m no" option sets the wakeup time without suspending the computer.
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// If 't' is zero, the current wakeup is cancelled by setting a new wakeup
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// time 2 seconds from now, which will then expire.
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unsigned now = KDateTime::currentUtcDateTime().toTime_t();
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proc << exe << QLatin1String("-m") << QLatin1String("no") << QLatin1String("-s") << QString::number(t ? t - now : 2);
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result = proc.execute(5000); // allow a timeout of 5 seconds
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}
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QString errmsg;
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switch (result)
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{
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case 0:
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return ActionReply::SuccessReply;
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case -2:
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errmsg = i18nc("@text/plain", "Could not run <command>%1</command> to set wake from suspend", QLatin1String("rtcwake"));
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break;
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default:
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errmsg = i18nc("@text/plain", "Error setting wake from suspend.<nl/>Command was: <command>%1</command><nl/>Error code: %2.", proc.program().join(QLatin1String(" ")), result);
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break;
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}
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ActionReply reply(ActionReply::HelperError);
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reply.setErrorCode(result);
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reply.setErrorDescription(errmsg);
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qDebug() << "RtcWakeAction::settimer: Code=" << reply.errorCode() << reply.errorDescription();
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return reply;
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}
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KDE4_AUTH_HELPER_MAIN("org.kde.kalarmrtcwake", RtcWakeAction)
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// vim: et sw=4:
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