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323 lines
7.0 KiB
323 lines
7.0 KiB
/*
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Copyright (C) 2004 Oswald Buddenhagen <ossi@kde.org>
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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 Lesser GNU 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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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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General Public License for more details.
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You should have received a copy of the Lesser GNU General Public License
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along with this program; see the file COPYING. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include "dmctl.h"
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#ifdef Q_WS_X11
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#include <tdelocale.h>
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#include <dcopclient.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <errno.h>
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static enum { Dunno, NoDM, NewKDM, OldKDM/*, GDM*/ } DMType = Dunno;
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static const char *ctl, *dpy;
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DM::DM() : fd( -1 )
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{
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const char *ptr;
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struct sockaddr_un sa;
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if (DMType == Dunno) {
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if (!(dpy = ::getenv( "DISPLAY" )))
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DMType = NoDM;
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else if ((ctl = ::getenv( "DM_CONTROL" )))
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DMType = NewKDM;
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else if ((ctl = ::getenv( "XDM_MANAGED" )) && ctl[0] == '/')
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DMType = OldKDM;
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else
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DMType = NoDM;
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}
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switch (DMType) {
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default:
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return;
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case NewKDM:
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if ((fd = ::socket( PF_UNIX, SOCK_STREAM, 0 )) < 0)
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return;
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sa.sun_family = AF_UNIX;
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if ((ptr = strchr( dpy, ':' )))
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ptr = strchr( ptr, '.' );
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snprintf( sa.sun_path, sizeof(sa.sun_path),
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"%s/dmctl-%.*s/socket", ctl, ptr ? ptr - dpy : 512, dpy );
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if (::connect( fd, (struct sockaddr *)&sa, sizeof(sa) )) {
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::close( fd );
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fd = -1;
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}
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break;
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case OldKDM:
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{
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TQString tf( ctl );
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tf.truncate( tf.find( ',' ) );
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fd = ::open( tf.latin1(), O_WRONLY );
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}
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break;
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}
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}
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DM::~DM()
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{
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if (fd >= 0)
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close( fd );
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}
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bool
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DM::exec( const char *cmd )
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{
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TQCString buf;
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return exec( cmd, buf );
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}
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/**
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* Execute a TDM remote control command.
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* @param cmd the command to execute. FIXME: undocumented yet.
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* @param ret the result buffer.
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* @return result:
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* @li If true, the command was successfully executed.
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* @p ret might contain addional results.
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* @li If false and @p ret is empty, a communication error occurred
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* (most probably TDM is not running).
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* @li If false and @p ret is non-empty, it contains the error message
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* from TDM.
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*/
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bool
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DM::exec( const char *cmd, TQCString &buf )
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{
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bool ret = false;
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int tl;
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unsigned len = 0;
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if (fd < 0)
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goto busted;
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if (::write( fd, cmd, (tl = strlen( cmd )) ) != tl) {
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bust:
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::close( fd );
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fd = -1;
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busted:
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buf.resize( 0 );
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return false;
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}
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if (DMType == OldKDM) {
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buf.resize( 0 );
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return true;
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}
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for (;;) {
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if (buf.size() < 128)
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buf.resize( 128 );
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else if (buf.size() < len * 2)
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buf.resize( len * 2 );
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if ((tl = ::read( fd, buf.data() + len, buf.size() - len)) <= 0) {
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if (tl < 0 && errno == EINTR)
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continue;
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goto bust;
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}
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len += tl;
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if (buf[len - 1] == '\n') {
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buf[len - 1] = 0;
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if (len > 2 && buf[0] == 'o' && buf[1] == 'k' && buf[2] < 32)
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ret = true;
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break;
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}
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}
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return ret;
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}
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bool
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DM::canShutdown()
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{
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if (DMType == OldKDM)
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return strstr( ctl, ",maysd" ) != 0;
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TQCString re;
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return exec( "caps\n", re ) && re.find( "\tshutdown" ) >= 0;
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}
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void
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DM::shutdown( TDEApplication::ShutdownType shutdownType,
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TDEApplication::ShutdownMode shutdownMode,
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const TQString &bootOption )
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{
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if (!bootOption.isEmpty() && DMType != NewKDM)
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return;
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if (shutdownType != TDEApplication::ShutdownTypeNone) {
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TQCString cmd( "shutdown\t" );
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cmd.append( shutdownType == TDEApplication::ShutdownTypeReboot ?
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"reboot\t" : "halt\t" );
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if (!bootOption.isNull())
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cmd.append( "=" ).append( bootOption.local8Bit() ).append( "\t" );
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cmd.append( shutdownMode == TDEApplication::ShutdownModeInteractive ?
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"ask\n" :
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shutdownMode == TDEApplication::ShutdownModeForceNow ?
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"forcenow\n" :
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shutdownMode == TDEApplication::ShutdownModeTryNow ?
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"trynow\n" : "schedule\n" );
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exec( cmd.data() );
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}
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}
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bool
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DM::bootOptions( TQStringList &opts, int &defopt, int ¤t )
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{
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if (DMType != NewKDM)
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return false;
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TQCString re;
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if (!exec( "listbootoptions\n", re ))
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return false;
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opts = TQStringList::split( '\t', TQString::fromLocal8Bit( re.data() ) );
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if (opts.size() < 4)
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return false;
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bool ok;
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defopt = opts[2].toInt( &ok );
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if (!ok)
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return false;
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current = opts[3].toInt( &ok );
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if (!ok)
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return false;
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opts = TQStringList::split( ' ', opts[1] );
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for (TQStringList::Iterator it = opts.begin(); it != opts.end(); ++it)
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(*it).replace( "\\s", " " );
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return true;
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}
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void
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DM::setLock( bool on )
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{
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exec( on ? "lock\n" : "unlock\n" );
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}
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bool
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DM::isSwitchable()
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{
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if (DMType == OldKDM)
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return dpy[0] == ':';
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TQCString re;
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return exec( "caps\n", re ) && re.find( "\tlocal" ) >= 0;
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}
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int
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DM::numReserve()
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{
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if (DMType == OldKDM)
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return strstr( ctl, ",rsvd" ) ? 1 : -1;
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TQCString re;
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int p;
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if (!(exec( "caps\n", re ) && (p = re.find( "\treserve " )) >= 0))
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return -1;
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return atoi( re.data() + p + 9 );
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}
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void
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DM::startReserve()
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{
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exec("reserve\n");
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}
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bool
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DM::localSessions( SessList &list )
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{
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if (DMType == OldKDM)
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return false;
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TQCString re;
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if (!exec( "list\talllocal\n", re ))
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return false;
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TQStringList sess = TQStringList::split( TQChar('\t'), re.data() + 3 );
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for (TQStringList::ConstIterator it = sess.begin(); it != sess.end(); ++it) {
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TQStringList ts = TQStringList::split( TQChar(','), *it, true );
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SessEnt se;
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se.display = ts[0];
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if (ts[1][0] == '@')
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se.from = ts[1].mid( 1 ), se.vt = 0;
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else
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se.vt = ts[1].mid( 2 ).toInt();
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se.user = ts[2];
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se.session = ts[3];
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se.self = (ts[4].find( '*' ) >= 0);
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se.tty = (ts[4].find( 't' ) >= 0);
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list.append( se );
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}
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return true;
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}
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void
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DM::sess2Str2( const SessEnt &se, TQString &user, TQString &loc )
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{
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if (se.tty) {
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user = i18n("user: ...", "%1: TTY login").arg( se.user );
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loc = se.vt ? TQString("vt%1").arg( se.vt ) : se.display ;
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} else {
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user =
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se.user.isEmpty() ?
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se.session.isEmpty() ?
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i18n("Unused") :
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se.session == "<remote>" ?
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i18n("X login on remote host") :
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i18n("... host", "X login on %1").arg( se.session ) :
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i18n("user: session type", "%1: %2")
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.arg( se.user ).arg( se.session );
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loc =
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se.vt ?
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TQString("%1, vt%2").arg( se.display ).arg( se.vt ) :
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se.display;
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}
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}
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TQString
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DM::sess2Str( const SessEnt &se )
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{
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TQString user, loc;
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sess2Str2( se, user, loc );
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return i18n("session (location)", "%1 (%2)").arg( user ).arg( loc );
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}
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bool
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DM::switchVT( int vt )
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{
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return exec( TQString("activate\tvt%1\n").arg(vt).latin1() );
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}
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void
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DM::lockSwitchVT( int vt )
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{
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if (switchVT( vt ))
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kapp->dcopClient()->send( "kdesktop", "KScreensaverIface", "lock()", "" );
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}
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#endif // Q_WS_X11
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