Added 4 opie files. Updated pro file.

1 files changed, 951 insertions, 0 deletions

diff --git a/microkde/oprocess.cpp b/microkde/oprocess.cpp
new file mode 100644
index 0000000..95e3e4b
--- a/dev/null
+++ b/microkde/oprocess.cpp
@@ -0,0 +1,951 @@
+/*
+                            This file is part of the Opie Project
+                            Copyright (C) 2002-2004 Holger Freyther <zecke@handhelds.org>
+                            and The Opie Team <opie-devel@handhelds.org>
+             =.             Based on KProcess (C) 1997 Christian Czezatke (e9025461@student.tuwien.ac.at)
+           .=l.
+          .>+-=
+_;:,     .>    :=|.         This program is free software; you can
+.> <`_,   >  .   <=          redistribute it and/or  modify it under
+:`=1 )Y*s>-.--   :           the terms of the GNU Library General Public
+.="- .-=="i,     .._         License as published by the Free Software
+- .   .-<_>     .<>         Foundation; either version 2 of the License,
+    ._= =}       :          or (at your option) any later version.
+   .%`+i>       _;_.
+   .i_,=:_.      -<s.       This program is distributed in the hope that
+    +  .  -:.       =       it will be useful,  but WITHOUT ANY WARRANTY;
+   : ..    .:,     . . .    without even the implied warranty of
+   =_        +     =;=|`    MERCHANTABILITY or FITNESS FOR A
+ _.=:.       :    :=>`:     PARTICULAR PURPOSE. See the GNU
+..}^=.=       =       ;      Library General Public License for more
+++=   -.     .`     .:       details.
+:     =  ...= . :.=-
+-.   .:....=;==+<;          You should have received a copy of the GNU
+ -_. . .   )=.  =           Library General Public License along with
+   --        :-=`           this library; see the file COPYING.LIB.
+                            If not, write to the Free Software Foundation,
+                            Inc., 59 Temple Place - Suite 330,
+                            Boston, MA 02111-1307, USA.
+*/
+
+#include "oprocctrl.h"
+
+/* OPIE */
+#include <oprocess.h>
+
+/* QT */
+
+#include <qapplication.h>
+#include <qdir.h>
+#include <qmap.h>
+#include <qsocketnotifier.h>
+#include <qtextstream.h>
+
+/* STD */
+#include <errno.h>
+#include <fcntl.h>
+#include <pwd.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/socket.h>
+#include <unistd.h>
+#ifdef HAVE_SYS_SELECT_H
+#include <sys/select.h>
+#endif
+#ifdef HAVE_INITGROUPS
+#include <grp.h>
+#endif
+
+using namespace Opie::Core::Internal;
+
+namespace Opie {
+namespace Core {
+namespace Internal {
+class OProcessPrivate
+{
+public:
+    OProcessPrivate() : useShell( false )
+    { }
+
+    bool useShell;
+    QMap<QString, QString> env;
+    QString wd;
+    QCString shell;
+};
+}
+
+OProcess::OProcess( QObject *parent, const char *name )
+        : QObject( parent, name )
+{
+    init ( );
+}
+
+OProcess::OProcess( const QString &arg0, QObject *parent, const char *name )
+        : QObject( parent, name )
+{
+    init ( );
+    *this << arg0;
+}
+
+OProcess::OProcess( const QStringList &args, QObject *parent, const char *name )
+        : QObject( parent, name )
+{
+    init ( );
+    *this << args;
+}
+
+void OProcess::init ( )
+{
+    run_mode = NotifyOnExit;
+    runs = false;
+    pid_ = 0;
+    status = 0;
+    keepPrivs = false;
+    innot = 0;
+    outnot = 0;
+    errnot = 0;
+    communication = NoCommunication;
+    input_data = 0;
+    input_sent = 0;
+    input_total = 0;
+    d = 0;
+
+    if ( 0 == OProcessController::theOProcessController )
+    {
+        ( void ) new OProcessController();
+        CHECK_PTR( OProcessController::theOProcessController );
+    }
+
+    OProcessController::theOProcessController->addOProcess( this );
+    out[ 0 ] = out[ 1 ] = -1;
+    in[ 0 ] = in[ 1 ] = -1;
+    err[ 0 ] = err[ 1 ] = -1;
+}
+
+void OProcess::setEnvironment( const QString &name, const QString &value )
+{
+    if ( !d )
+        d = new OProcessPrivate;
+    d->env.insert( name, value );
+}
+
+void OProcess::setWorkingDirectory( const QString &dir )
+{
+    if ( !d )
+        d = new OProcessPrivate;
+    d->wd = dir;
+}
+
+void OProcess::setupEnvironment()
+{
+    if ( d )
+    {
+        QMap<QString, QString>::Iterator it;
+        for ( it = d->env.begin(); it != d->env.end(); ++it )
+            setenv( QFile::encodeName( it.key() ).data(),
+                    QFile::encodeName( it.data() ).data(), 1 );
+        if ( !d->wd.isEmpty() )
+            chdir( QFile::encodeName( d->wd ).data() );
+    }
+}
+
+void OProcess::setRunPrivileged( bool keepPrivileges )
+{
+    keepPrivs = keepPrivileges;
+}
+
+bool OProcess::runPrivileged() const
+{
+    return keepPrivs;
+}
+
+OProcess::~OProcess()
+{
+    // destroying the OProcess instance sends a SIGKILL to the
+    // child process (if it is running) after removing it from the
+    // list of valid processes (if the process is not started as
+    // "DontCare")
+
+    OProcessController::theOProcessController->removeOProcess( this );
+    // this must happen before we kill the child
+    // TODO: block the signal while removing the current process from the process list
+
+    if ( runs && ( run_mode != DontCare ) )
+        kill( SIGKILL );
+
+    // Clean up open fd's and socket notifiers.
+    closeStdin();
+    closeStdout();
+    closeStderr();
+
+    // TODO: restore SIGCHLD and SIGPIPE handler if this is the last OProcess
+    delete d;
+}
+
+void OProcess::detach()
+{
+    OProcessController::theOProcessController->removeOProcess( this );
+
+    runs = false;
+    pid_ = 0;
+
+    // Clean up open fd's and socket notifiers.
+    closeStdin();
+    closeStdout();
+    closeStderr();
+}
+
+bool OProcess::setExecutable( const QString& proc )
+{
+    if ( runs )
+        return false;
+
+    if ( proc.isEmpty() )
+        return false;
+
+    if ( !arguments.isEmpty() )
+        arguments.remove( arguments.begin() );
+    arguments.prepend( QFile::encodeName( proc ) );
+
+    return true;
+}
+
+OProcess &OProcess::operator<<( const QStringList& args )
+{
+    QStringList::ConstIterator it = args.begin();
+    for ( ; it != args.end() ; ++it )
+        arguments.append( QFile::encodeName( *it ) );
+    return *this;
+}
+
+OProcess &OProcess::operator<<( const QCString& arg )
+{
+    return operator<< ( arg.data() );
+}
+
+OProcess &OProcess::operator<<( const char* arg )
+{
+    arguments.append( arg );
+    return *this;
+}
+
+OProcess &OProcess::operator<<( const QString& arg )
+{
+    arguments.append( QFile::encodeName( arg ) );
+    return *this;
+}
+
+void OProcess::clearArguments()
+{
+    arguments.clear();
+}
+
+bool OProcess::start( RunMode runmode, Communication comm )
+{
+    uint i;
+    uint n = arguments.count();
+    char **arglist;
+
+    if ( runs || ( 0 == n ) )
+    {
+        return false;  // cannot start a process that is already running
+        // or if no executable has been assigned
+    }
+    run_mode = runmode;
+    status = 0;
+
+    QCString shellCmd;
+    if ( d && d->useShell )
+    {
+        if ( d->shell.isEmpty() )
+        {
+            qWarning( "Could not find a valid shell" );
+            return false;
+        }
+
+        arglist = static_cast<char **>( malloc( ( 4 ) * sizeof( char * ) ) );
+        for ( i = 0; i < n; i++ )
+        {
+            shellCmd += arguments[ i ];
+            shellCmd += " "; // CC: to separate the arguments
+        }
+
+        arglist[ 0 ] = d->shell.data();
+        arglist[ 1 ] = ( char * ) "-c";
+        arglist[ 2 ] = shellCmd.data();
+        arglist[ 3 ] = 0;
+    }
+    else
+    {
+        arglist = static_cast<char **>( malloc( ( n + 1 ) * sizeof( char * ) ) );
+        for ( i = 0; i < n; i++ )
+            arglist[ i ] = arguments[ i ].data();
+        arglist[ n ] = 0;
+    }
+
+    if ( !setupCommunication( comm ) )
+        qWarning( "Could not setup Communication!" );
+
+    // We do this in the parent because if we do it in the child process
+    // gdb gets confused when the application runs from gdb.
+    uid_t uid = getuid();
+    gid_t gid = getgid();
+#ifdef HAVE_INITGROUPS
+
+    struct passwd *pw = getpwuid( uid );
+#endif
+
+    int fd[ 2 ];
+    if ( 0 > pipe( fd ) )
+    {
+        fd[ 0 ] = fd[ 1 ] = 0; // Pipe failed.. continue
+    }
+
+    runs = true;
+
+    QApplication::flushX();
+
+    // WABA: Note that we use fork() and not vfork() because
+    // vfork() has unclear semantics and is not standardized.
+    pid_ = fork();
+
+    if ( 0 == pid_ )
+    {
+        if ( fd[ 0 ] )
+            close( fd[ 0 ] );
+        if ( !runPrivileged() )
+        {
+            setgid( gid );
+#if defined( HAVE_INITGROUPS)
+
+            if ( pw )
+                initgroups( pw->pw_name, pw->pw_gid );
+#endif
+
+            setuid( uid );
+        }
+        // The child process
+        if ( !commSetupDoneC() )
+            qWarning( "Could not finish comm setup in child!" );
+
+        setupEnvironment();
+
+        // Matthias
+        if ( run_mode == DontCare )
+            setpgid( 0, 0 );
+        // restore default SIGPIPE handler (Harri)
+        struct sigaction act;
+        sigemptyset( &( act.sa_mask ) );
+        sigaddset( &( act.sa_mask ), SIGPIPE );
+        act.sa_handler = SIG_DFL;
+        act.sa_flags = 0;
+        sigaction( SIGPIPE, &act, 0L );
+
+        // We set the close on exec flag.
+        // Closing of fd[1] indicates that the execvp succeeded!
+        if ( fd[ 1 ] )
+            fcntl( fd[ 1 ], F_SETFD, FD_CLOEXEC );
+        execvp( arglist[ 0 ], arglist );
+        char resultByte = 1;
+        if ( fd[ 1 ] )
+            write( fd[ 1 ], &resultByte, 1 );
+        _exit( -1 );
+    }
+    else if ( -1 == pid_ )
+    {
+        // forking failed
+
+        runs = false;
+        free( arglist );
+        return false;
+    }
+    else
+    {
+        if ( fd[ 1 ] )
+            close( fd[ 1 ] );
+        // the parent continues here
+
+        // Discard any data for stdin that might still be there
+        input_data = 0;
+
+        // Check whether client could be started.
+        if ( fd[ 0 ] )
+            for ( ;; )
+            {
+                char resultByte;
+                int n = ::read( fd[ 0 ], &resultByte, 1 );
+                if ( n == 1 )
+                {
+                    // Error
+                    runs = false;
+                    close( fd[ 0 ] );
+                    free( arglist );
+                    pid_ = 0;
+                    return false;
+                }
+                if ( n == -1 )
+                {
+                    if ( ( errno == ECHILD ) || ( errno == EINTR ) )
+                        continue; // Ignore
+                }
+                break; // success
+            }
+        if ( fd[ 0 ] )
+            close( fd[ 0 ] );
+
+        if ( !commSetupDoneP() )   // finish communication socket setup for the parent
+            qWarning( "Could not finish comm setup in parent!" );
+
+        if ( run_mode == Block )
+        {
+            commClose();
+
+            // The SIGCHLD handler of the process controller will catch
+            // the exit and set the status
+            while ( runs )
+            {
+                OProcessController::theOProcessController->
+                slotDoHousekeeping( 0 );
+            }
+            runs = FALSE;
+            emit processExited( this );
+        }
+    }
+    free( arglist );
+    return true;
+}
+
+
+
+bool OProcess::kill( int signo )
+{
+    bool rv = false;
+
+    if ( 0 != pid_ )
+        rv = ( -1 != ::kill( pid_, signo ) );
+    // probably store errno somewhere...
+    return rv;
+}
+
+bool OProcess::isRunning() const
+{
+    return runs;
+}
+
+pid_t OProcess::pid() const
+{
+    return pid_;
+}
+
+bool OProcess::normalExit() const
+{
+    int _status = status;
+    return ( pid_ != 0 ) && ( !runs ) && ( WIFEXITED( ( _status ) ) );
+}
+
+int OProcess::exitStatus() const
+{
+    int _status = status;
+    return WEXITSTATUS( ( _status ) );
+}
+
+bool OProcess::writeStdin( const char *buffer, int buflen )
+{
+    bool rv;
+
+    // if there is still data pending, writing new data
+    // to stdout is not allowed (since it could also confuse
+    // kprocess...
+    if ( 0 != input_data )
+        return false;
+
+    if ( runs && ( communication & Stdin ) )
+    {
+        input_data = buffer;
+        input_sent = 0;
+        input_total = buflen;
+        slotSendData( 0 );
+        innot->setEnabled( true );
+        rv = true;
+    }
+    else
+        rv = false;
+    return rv;
+}
+
+void OProcess::flushStdin ( )
+{
+    if ( !input_data || ( input_sent == input_total ) )
+        return ;
+
+    int d1, d2;
+
+    do
+    {
+        d1 = input_total - input_sent;
+        slotSendData ( 0 );
+        d2 = input_total - input_sent;
+    }
+    while ( d2 <= d1 );
+}
+
+void OProcess::suspend()
+{
+    if ( ( communication & Stdout ) && outnot )
+        outnot->setEnabled( false );
+}
+
+void OProcess::resume()
+{
+    if ( ( communication & Stdout ) && outnot )
+        outnot->setEnabled( true );
+}
+
+bool OProcess::closeStdin()
+{
+    bool rv;
+
+    if ( communication & Stdin )
+    {
+        communication = ( Communication ) ( communication & ~Stdin );
+        delete innot;
+        innot = 0;
+        close( in[ 1 ] );
+        rv = true;
+    }
+    else
+        rv = false;
+    return rv;
+}
+
+bool OProcess::closeStdout()
+{
+    bool rv;
+
+    if ( communication & Stdout )
+    {
+        communication = ( Communication ) ( communication & ~Stdout );
+        delete outnot;
+        outnot = 0;
+        close( out[ 0 ] );
+        rv = true;
+    }
+    else
+        rv = false;
+    return rv;
+}
+
+bool OProcess::closeStderr()
+{
+    bool rv;
+
+    if ( communication & Stderr )
+    {
+        communication = static_cast<Communication>( communication & ~Stderr );
+        delete errnot;
+        errnot = 0;
+        close( err[ 0 ] );
+        rv = true;
+    }
+    else
+        rv = false;
+    return rv;
+}
+
+void OProcess::slotChildOutput( int fdno )
+{
+    if ( !childOutput( fdno ) )
+        closeStdout();
+}
+
+void OProcess::slotChildError( int fdno )
+{
+    if ( !childError( fdno ) )
+        closeStderr();
+}
+
+void OProcess::slotSendData( int )
+{
+    if ( input_sent == input_total )
+    {
+        innot->setEnabled( false );
+        input_data = 0;
+        emit wroteStdin( this );
+    }
+    else
+        input_sent += ::write( in[ 1 ], input_data + input_sent, input_total - input_sent );
+}
+
+void OProcess::processHasExited( int state )
+{
+    if ( runs )
+    {
+        runs = false;
+        status = state;
+
+        commClose(); // cleanup communication sockets
+
+        // also emit a signal if the process was run Blocking
+        if ( DontCare != run_mode )
+        {
+            emit processExited( this );
+        }
+    }
+}
+
+int OProcess::childOutput( int fdno )
+{
+    if ( communication & NoRead )
+    {
+        int len = -1;
+        emit receivedStdout( fdno, len );
+        errno = 0; // Make sure errno doesn't read "EAGAIN"
+        return len;
+    }
+    else
+    {
+        char buffer[ 1024 ];
+        int len;
+
+        len = ::read( fdno, buffer, 1024 );
+
+        if ( 0 < len )
+        {
+            emit receivedStdout( this, buffer, len );
+        }
+        return len;
+    }
+}
+
+int OProcess::childError( int fdno )
+{
+    char buffer[ 1024 ];
+    int len;
+
+    len = ::read( fdno, buffer, 1024 );
+
+    if ( 0 < len )
+        emit receivedStderr( this, buffer, len );
+    return len;
+}
+
+int OProcess::setupCommunication( Communication comm )
+{
+    int ok;
+
+    communication = comm;
+
+    ok = 1;
+    if ( comm & Stdin )
+        ok &= socketpair( AF_UNIX, SOCK_STREAM, 0, in ) >= 0;
+
+    if ( comm & Stdout )
+        ok &= socketpair( AF_UNIX, SOCK_STREAM, 0, out ) >= 0;
+
+    if ( comm & Stderr )
+        ok &= socketpair( AF_UNIX, SOCK_STREAM, 0, err ) >= 0;
+
+    return ok;
+}
+
+int OProcess::commSetupDoneP()
+{
+    int ok = 1;
+
+    if ( communication != NoCommunication )
+    {
+        if ( communication & Stdin )
+            close( in[ 0 ] );
+        if ( communication & Stdout )
+            close( out[ 1 ] );
+        if ( communication & Stderr )
+            close( err[ 1 ] );
+
+        // Don't create socket notifiers and set the sockets non-blocking if
+        // blocking is requested.
+        if ( run_mode == Block )
+            return ok;
+
+        if ( communication & Stdin )
+        {
+            //        ok &= (-1 != fcntl(in[1], F_SETFL, O_NONBLOCK));
+            innot = new QSocketNotifier( in[ 1 ], QSocketNotifier::Write, this );
+            CHECK_PTR( innot );
+            innot->setEnabled( false ); // will be enabled when data has to be sent
+            QObject::connect( innot, SIGNAL( activated(int) ),
+                              this, SLOT( slotSendData(int) ) );
+        }
+
+        if ( communication & Stdout )
+        {
+            //        ok &= (-1 != fcntl(out[0], F_SETFL, O_NONBLOCK));
+            outnot = new QSocketNotifier( out[ 0 ], QSocketNotifier::Read, this );
+            CHECK_PTR( outnot );
+            QObject::connect( outnot, SIGNAL( activated(int) ),
+                              this, SLOT( slotChildOutput(int) ) );
+            if ( communication & NoRead )
+                suspend();
+        }
+
+        if ( communication & Stderr )
+        {
+            //        ok &= (-1 != fcntl(err[0], F_SETFL, O_NONBLOCK));
+            errnot = new QSocketNotifier( err[ 0 ], QSocketNotifier::Read, this );
+            CHECK_PTR( errnot );
+            QObject::connect( errnot, SIGNAL( activated(int) ),
+                              this, SLOT( slotChildError(int) ) );
+        }
+    }
+    return ok;
+}
+
+int OProcess::commSetupDoneC()
+{
+    int ok = 1;
+    struct linger so;
+    memset( &so, 0, sizeof( so ) );
+
+    if ( communication & Stdin )
+        close( in[ 1 ] );
+    if ( communication & Stdout )
+        close( out[ 0 ] );
+    if ( communication & Stderr )
+        close( err[ 0 ] );
+
+    if ( communication & Stdin )
+        ok &= dup2( in[ 0 ], STDIN_FILENO ) != -1;
+    else
+    {
+        int null_fd = open( "/dev/null", O_RDONLY );
+        ok &= dup2( null_fd, STDIN_FILENO ) != -1;
+        close( null_fd );
+    }
+    if ( communication & Stdout )
+    {
+        ok &= dup2( out[ 1 ], STDOUT_FILENO ) != -1;
+        ok &= !setsockopt( out[ 1 ], SOL_SOCKET, SO_LINGER, ( char* ) & so, sizeof( so ) );
+    }
+    else
+    {
+        int null_fd = open( "/dev/null", O_WRONLY );
+        ok &= dup2( null_fd, STDOUT_FILENO ) != -1;
+        close( null_fd );
+    }
+    if ( communication & Stderr )
+    {
+        ok &= dup2( err[ 1 ], STDERR_FILENO ) != -1;
+        ok &= !setsockopt( err[ 1 ], SOL_SOCKET, SO_LINGER, reinterpret_cast<char *>( &so ), sizeof( so ) );
+    }
+    else
+    {
+        int null_fd = open( "/dev/null", O_WRONLY );
+        ok &= dup2( null_fd, STDERR_FILENO ) != -1;
+        close( null_fd );
+    }
+    return ok;
+}
+
+void OProcess::commClose()
+{
+    if ( NoCommunication != communication )
+    {
+        bool b_in = ( communication & Stdin );
+        bool b_out = ( communication & Stdout );
+        bool b_err = ( communication & Stderr );
+        if ( b_in )
+            delete innot;
+
+        if ( b_out || b_err )
+        {
+            // If both channels are being read we need to make sure that one socket buffer
+            // doesn't fill up whilst we are waiting for data on the other (causing a deadlock).
+            // Hence we need to use select.
+
+            // Once one or other of the channels has reached EOF (or given an error) go back
+            // to the usual mechanism.
+
+            int fds_ready = 1;
+            fd_set rfds;
+
+            int max_fd = 0;
+            if ( b_out )
+            {
+                fcntl( out[ 0 ], F_SETFL, O_NONBLOCK );
+                if ( out[ 0 ] > max_fd )
+                    max_fd = out[ 0 ];
+                delete outnot;
+                outnot = 0;
+            }
+            if ( b_err )
+            {
+                fcntl( err[ 0 ], F_SETFL, O_NONBLOCK );
+                if ( err[ 0 ] > max_fd )
+                    max_fd = err[ 0 ];
+                delete errnot;
+                errnot = 0;
+            }
+
+
+            while ( b_out || b_err )
+            {
+                // * If the process is still running we block until we
+                // receive data. (p_timeout = 0, no timeout)
+                // * If the process has already exited, we only check
+                // the available data, we don't wait for more.
+                // (p_timeout = &timeout, timeout immediately)
+                struct timeval timeout;
+                timeout.tv_sec = 0;
+                timeout.tv_usec = 0;
+                struct timeval *p_timeout = runs ? 0 : &timeout;
+
+                FD_ZERO( &rfds );
+                if ( b_out )
+                    FD_SET( out[ 0 ], &rfds );
+
+                if ( b_err )
+                    FD_SET( err[ 0 ], &rfds );
+
+                fds_ready = select( max_fd + 1, &rfds, 0, 0, p_timeout );
+                if ( fds_ready <= 0 )
+                    break;
+
+                if ( b_out && FD_ISSET( out[ 0 ], &rfds ) )
+                {
+                    int ret = 1;
+                    while ( ret > 0 )
+                        ret = childOutput( out[ 0 ] );
+                    if ( ( ret == -1 && errno != EAGAIN ) || ret == 0 )
+                        b_out = false;
+                }
+
+                if ( b_err && FD_ISSET( err[ 0 ], &rfds ) )
+                {
+                    int ret = 1;
+                    while ( ret > 0 )
+                        ret = childError( err[ 0 ] );
+                    if ( ( ret == -1 && errno != EAGAIN ) || ret == 0 )
+                        b_err = false;
+                }
+            }
+        }
+
+        if ( b_in )
+        {
+            communication = ( Communication ) ( communication & ~Stdin );
+            close( in[ 1 ] );
+        }
+        if ( b_out )
+        {
+            communication = ( Communication ) ( communication & ~Stdout );
+            close( out[ 0 ] );
+        }
+        if ( b_err )
+        {
+            communication = ( Communication ) ( communication & ~Stderr );
+            close( err[ 0 ] );
+        }
+    }
+}
+
+void OProcess::setUseShell( bool useShell, const char *shell )
+{
+    if ( !d )
+        d = new OProcessPrivate;
+    d->useShell = useShell;
+    d->shell = shell;
+    if ( d->shell.isEmpty() )
+        d->shell = searchShell();
+}
+
+QString OProcess::quote( const QString &arg )
+{
+    QString res = arg;
+    res.replace( QRegExp( QString::fromLatin1( "\'" ) ),
+                 QString::fromLatin1( "'\"'\"'" ) );
+    res.prepend( '\'' );
+    res.append( '\'' );
+    return res;
+}
+
+QCString OProcess::searchShell()
+{
+    QCString tmpShell = QCString( getenv( "SHELL" ) ).stripWhiteSpace();
+    if ( !isExecutable( tmpShell ) )
+    {
+        tmpShell = "/bin/sh";
+    }
+
+    return tmpShell;
+}
+
+bool OProcess::isExecutable( const QCString &filename )
+{
+    struct stat fileinfo;
+
+    if ( filename.isEmpty() )
+        return false;
+
+    // CC: we've got a valid filename, now let's see whether we can execute that file
+
+    if ( -1 == stat( filename.data(), &fileinfo ) )
+        return false;
+    // CC: return false if the file does not exist
+
+    // CC: anyway, we cannot execute directories, block/character devices, fifos or sockets
+    if ( ( S_ISDIR( fileinfo.st_mode ) ) ||
+            ( S_ISCHR( fileinfo.st_mode ) ) ||
+            ( S_ISBLK( fileinfo.st_mode ) ) ||
+#ifdef S_ISSOCK
+            // CC: SYSVR4 systems don't have that macro
+            ( S_ISSOCK( fileinfo.st_mode ) ) ||
+#endif
+            ( S_ISFIFO( fileinfo.st_mode ) ) ||
+            ( S_ISDIR( fileinfo.st_mode ) ) )
+    {
+        return false;
+    }
+
+    // CC: now check for permission to execute the file
+    if ( access( filename.data(), X_OK ) != 0 )
+        return false;
+
+    // CC: we've passed all the tests...
+    return true;
+}
+
+int OProcess::processPID( const QString& process )
+{
+    QString line;
+    QDir d = QDir( "/proc" );
+    QStringList dirs = d.entryList( QDir::Dirs );
+    QStringList::Iterator it;
+    for ( it = dirs.begin(); it != dirs.end(); ++it )
+    {
+        //qDebug( "next entry: %s", (const char*) *it );
+        QFile file( "/proc/"+*it+"/cmdline" );
+        file.open( IO_ReadOnly );
+        if ( !file.isOpen() ) continue;
+        QTextStream t( &file );
+        line = t.readLine();
+        //qDebug( "cmdline = %s", (const char*) line );
+        if ( line.contains( process ) ) break; //FIXME: That may find also other process, if the name is not long enough ;)
+    }
+    if ( line.contains( process ) )
+    {
+        //qDebug( "found process id #%d", (*it).toInt() );
+        return (*it).toInt();
+    }
+    else
+    {
+        //qDebug( "process '%s' not found", (const char*) process );
+        return 0;
+    }
+}
+
+}
+}