Adding upstream version 0.9.0+20151029.

.gitignore

@@ -1 +0,0 @@
-build

AUTHORS

@@ -4,5 +4,5 @@ Upstream Authors:
 Copyright:
     Copyright (c) 2015 LXQt team
 
-License: LGPL-2.1
+License: LGPL-2.1+
 The full text of the licenses can be found in the 'COPYING' file.

CMakeLists.txt

@@ -16,12 +16,16 @@ find_package(lxqt REQUIRED QUIET)
 include(LXQtCompilerSettings NO_POLICY_SCOPE)
 include(LXQtTranslate)
 
+set ( LINK_LXSU "lxsu")
+set ( LINK_LXSUDO "lxsudo")
+
 set ( HDRS
     passworddialog.h
 )
 
 set ( SRCS
     passworddialog.cpp
+    sudo.cpp
     main.cpp
 )
 
@@ -56,27 +60,48 @@ add_executable(lxqt-sudo
 
 target_link_libraries(lxqt-sudo
     Qt5::Widgets
+    util
     lxqt
 )
 
 target_compile_definitions(lxqt-sudo
     PRIVATE "LXQTSUDO_SUDO=\"sudo\""
+    PRIVATE "LXQTSUDO_SU=\"su\""
     PRIVATE "LXQTSUDO=\"lxqt-sudo\""
+    PRIVATE "LXQTSUDO_LXSU=\"${LINK_LXSU}\""
+    PRIVATE "LXQTSUDO_LXSUDO=\"${LINK_LXSUDO}\""
     PRIVATE "LXQT_VERSION=\"${LXQT_VERSION}\""
 )
 
+add_custom_command(TARGET lxqt-sudo POST_BUILD
+    COMMAND ln -f -s lxqt-sudo "${LINK_LXSU}"
+    WORKING_DIRECTORY .
+    COMMENT "Creating ${LINK_LXSU} symlink"
+)
+
+add_custom_command(TARGET lxqt-sudo POST_BUILD
+    COMMAND ln -f -s lxqt-sudo "${LINK_LXSUDO}"
+    WORKING_DIRECTORY .
+    COMMENT "Creating ${LINK_LXSUDO} symlink"
+)
+
 install(TARGETS
     lxqt-sudo
     RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
     COMPONENT Runtime
 )
+install(FILES
+    "${CMAKE_CURRENT_BINARY_DIR}/${LINK_LXSU}" "${CMAKE_CURRENT_BINARY_DIR}/${LINK_LXSUDO}"
+    DESTINATION "${CMAKE_INSTALL_BINDIR}"
+    COMPONENT Runtime
+)
 install(FILES
     ${DESKTOP_FILES}
     DESTINATION "${CMAKE_INSTALL_DATAROOTDIR}/applications"
     COMPONENT Runtime
 )
 install(FILES
-    man/lxqt-sudo.1
+    man/lxqt-sudo.1 "man/${LINK_LXSU}.1" "man/${LINK_LXSUDO}.1"
     DESTINATION "${CMAKE_INSTALL_MANDIR}/man1"
     COMPONENT Runtime
 )

main.cpp

@@ -26,151 +26,12 @@
  * END_COMMON_COPYRIGHT_HEADER */
 
 #include <LXQt/Application>
-#include "passworddialog.h"
-#include <QFileInfo>
-#include <QDir>
-#include <QProcess>
-#include <QTimer>
-#include <QMessageBox>
-#include <QSocketNotifier>
-#include <sstream>
-#include <QDebug>
-
-const QString app_master{QStringLiteral(LXQTSUDO)};
-const QString app_version{QStringLiteral(LXQT_VERSION)};
-const QString sudo_prog{QStringLiteral(LXQTSUDO_SUDO)};
-const QString sudo_pwd_prompt{QStringLiteral("Password:\n")};
-
-void usage(QString const & err = QString())
-{
-    if (!err.isEmpty())
-        QTextStream(stderr) << err << '\n';
-    QTextStream(stdout)
-        << QObject::tr("Usage: %1 command [arguments...]\n\n"
-                "GUI frontend for %2\n\n"
-                "Arguments:\n"
-                "  command        Command to run.\n"
-                "  arguments      Optional arguments for command.\n\n").arg(app_master).arg(sudo_prog);
-    if (!err.isEmpty())
-        QMessageBox(QMessageBox::Critical, app_master, err, QMessageBox::Ok).exec();
-}
-
-void version()
-{
-    QTextStream(stdout)
-        << QObject::tr("%1 version %2\n").arg(app_master).arg(app_version);
-}
-
-int master(int argc, char **argv)
-{
-    //master
-    LxQt::Application app(argc, argv, true);
-    app.setQuitOnLastWindowClosed(false);
-
-    if (1 >= argc)
-    {
-        usage(QObject::tr("%1: no command to run provided!").arg(app_master));
-        return 1;
-    } else
-    {
-        //simple help check
-        std::string arg1(argv[1]);
-        if ("-h" == arg1 || "--help" == arg1)
-        {
-            usage();
-            return 0;
-        } else if ("-v" == arg1 || "--version" == arg1)
-        {
-            version();
-            return 0;
-        }
-        //any other arguments we simply forward to sudo
-    }
-
-    QStringList args = app.arguments();
-    //check for provided command is done before
-    args.removeAt(0);
-    PasswordDialog dlg(args);
-    dlg.setModal(true);
-    app.setActiveWindow(&dlg);
-
-    QScopedPointer<QProcess> sudo{new QProcess};
-    QObject::connect(&dlg, &QDialog::finished, [&sudo, &dlg] (int result)
-        {
-            if (QDialog::Accepted == result)
-            {
-                sudo->write(QByteArray{}.append(dlg.password().append('\n')));
-            } else
-            {
-                sudo->terminate();
-                if (!sudo->waitForFinished(1000))
-                    sudo->kill();
-            }
-        });
-
-    //start background process -> sudo
-    sudo->setProcessChannelMode(QProcess::ForwardedOutputChannel);
-    sudo->setReadChannel(QProcess::StandardError);
-
-    QString last_line;
-    int ret;
-    QObject::connect(sudo.data(), static_cast<void (QProcess::*)(int, QProcess::ExitStatus)>(&QProcess::finished)
-            , [&app, &ret, &last_line, &dlg] (int exitCode, QProcess::ExitStatus exitStatus)
-        {
-            ret = QProcess::NormalExit == exitStatus ? exitCode : 255;
-            if (0 != ret && last_line.startsWith(QStringLiteral("%1:").arg(sudo_prog)))
-                QMessageBox(QMessageBox::Critical, dlg.windowTitle()
-                        , QObject::tr("Child '%1' process failed!\n%2").arg(sudo_prog).arg(last_line), QMessageBox::Ok).exec();
-            app.quit();
-        });
-
-    QObject::connect(sudo.data(), &QProcess::readyReadStandardError, [&sudo, &dlg, &last_line]
-        {
-            QByteArray err = sudo->readAllStandardError();
-            if (sudo_pwd_prompt == err.constData())
-            {
-                dlg.show();
-                return;
-            }
-
-            QTextStream{stderr, QIODevice::WriteOnly} << err;
-            int nl_pos = err.lastIndexOf('\n');
-            if (-1 == nl_pos)
-                last_line += err;
-            else
-            {
-                if (err.endsWith('\n'))
-                    err.remove(err.size() - 1, 1);
-                nl_pos = err.lastIndexOf('\n');
-                if (-1 != nl_pos)
-                    err.remove(0, nl_pos + 1);
-                last_line = err;
-            }
-        });
-
-    //forward all stdin to child
-    QTextStream std_in{stdin, QIODevice::ReadOnly};
-    QSocketNotifier stdin_watcher{0/*stdin*/, QSocketNotifier::Read};
-    QObject::connect(&stdin_watcher, &QSocketNotifier::activated, [&std_in, &sudo]
-        {
-            QString line{std_in.readLine()};
-            if (!std_in.atEnd())
-                line += QLatin1Char('\n');
-            sudo->write(line.toStdString().c_str());
-            if (std_in.atEnd())
-                sudo->closeWriteChannel();
-        });
-
-    sudo->start(sudo_prog, QStringList() << QStringLiteral("-S")
-            << QStringLiteral("-p") << sudo_pwd_prompt
-            << args);
-    app.exec();
-
-    sudo->waitForFinished(-1);
-    return ret;
-}
+#include "sudo.h"
 
 int main(int argc, char **argv)
 {
-    return master(argc, argv);
+    LXQt::Application app(argc, argv, true);
+    app.setQuitOnLastWindowClosed(false);
+    Sudo s;
+    return s.main();
 }

man/lxqt-sudo.1

@@ -1,17 +1,32 @@
 .TH lxqt-sudo 1 "" "" "LXQt\ Module"
 .SH NAME
-\fBlxqt-sudo\fR \- execute a command as privileged user
+\fBlxqt-sudo\fR, \fBlxsu\fR \- execute a command as privileged user
 .SH SYNOPSIS
-\fBlxqt-sudo\fR \fIcommand\fR [\fIarguments\fR]
-.SH DESCRIPTION
-\fBlxqt-sudo\fR is a graphical QT frontend for plain \fBsudo(8)\fR (for requesting optional password in GUI fashion).
+\fBlxqt-sudo\fR \fIoption\fR [\fIcommand\fR [\fIarguments\fR]]
 .br
-When invoked it simply spawns child \fIsudo\fR process with requested \fIcommand\fR (and \fIarguments\fR). If \fIsudo\fR requests user's password,
-the GUI password dialog is shown and (after submit) the password is provided to \fIsudo\fR.
+\fBlxsu\fR [\fIoption\fR] [\fIcommand\fR [\fIarguments\fR]]
+.br
+\fBlxsudo\fR [\fIoption\fR] [\fIcommand\fR [\fIarguments\fR]]
+.SH DESCRIPTION
+\fBlxqt-sudo\fR (and symlinks \fBlxsu\fR, \fBlxsudo\fR) is a graphical QT frontend for plain \fBsudo(8)\fR or \fBsu(1)\fR (for requesting optional password in GUI fashion).
+.br
+When invoked it simply spawns child \fIsudo\fR or \fIsu\fR process with requested \fIcommand\fR (and optional \fIarguments\fR). If \fIsudo\fR/\fIsu\fR requests user's password,
+the GUI password dialog is shown and (after submit) the password is provided to backend.
+.br
+.SH OPTIONS
+\fBoption\fR is one of:
+.br
+  -h|--help      Print help.
+.br
+  -v|--version   Print version information.
+.br
+  -s|--su        Use \fIsu\fR as backend (default for \fBlxqt-sudo\fR & \fBlxsudo\fR is \fIsudo\fR, for \fBlxsu\fR is \fIsu\fR).
+.br
+  -d|--sudo      Use \fIsudo\fR as backend (default for \fBlxqt-sudo\fR & \fBlxsudo\fR is \fIsudo\fR, for \fBlxsu\fR is \fIsu\fR).
 .SH "REPORTING BUGS"
 Report bugs to https://github.com/lxde/lxqt/issues
 .SH "SEE ALSO"
-\fBsudo(8)\fR
+\fBsudo(8)\fR \fBsu(1)\fR
 .SH AUTHOR
 This manual page was created by \fBPalo Kisa\fR \fI<palo.kisa@gmail.com>\fR
 for \fBLXQt\fR project.

man/lxsu.1

@@ -0,0 +1 @@
+lxqt-sudo.1

man/lxsudo.1

@@ -0,0 +1 @@
+lxqt-sudo.1

passworddialog.h

@@ -34,9 +34,6 @@ namespace Ui {
     class PasswordDialog;
 }
 
-class Communication;
-class QProcess;
-
 class PasswordDialog : public QDialog
 {
     Q_OBJECT

sudo.cpp

@@ -0,0 +1,312 @@
+/* BEGIN_COMMON_COPYRIGHT_HEADER
+ * (c)LGPL2+
+ *
+ * LXQt - a lightweight, Qt based, desktop toolset
+ * http://lxqt.org
+ *
+ * Copyright: 2015 LXQt team
+ * Authors:
+ *   Palo Kisa <palo.kisa@gmail.com>
+ *
+ * This program or library is free software; you can redistribute it
+ * and/or modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+
+ * You should have received a copy of the GNU Lesser General
+ * Public License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301 USA
+ *
+ * END_COMMON_COPYRIGHT_HEADER */
+
+#include "sudo.h"
+#include "passworddialog.h"
+
+#include <LXQt/Application>
+
+#include <QTextStream>
+#include <QMessageBox>
+#include <QFileInfo>
+#include <QSocketNotifier>
+#include <QDebug>
+#include <QThread>
+#include <pty.h>
+#include <unistd.h>
+#include <memory>
+#include <csignal>
+#include <sys/wait.h>
+#include <fcntl.h>
+
+namespace
+{
+    const QString app_master{QStringLiteral(LXQTSUDO)};
+    const QString app_version{QStringLiteral(LXQT_VERSION)};
+    const QString app_lxsu{QStringLiteral(LXQTSUDO_LXSU)};
+    const QString app_lxsudo{QStringLiteral(LXQTSUDO_LXSUDO)};
+
+    const QString su_prog{QStringLiteral(LXQTSUDO_SU)};
+    const QString sudo_prog{QStringLiteral(LXQTSUDO_SUDO)};
+    const QString pwd_prompt_end{QStringLiteral(": ")};
+    const QChar nl{QLatin1Char('\n')};
+
+    void usage(QString const & err = QString())
+    {
+        if (!err.isEmpty())
+            QTextStream(stderr) << err << '\n';
+        QTextStream(stdout)
+            << QObject::tr("Usage: %1 option [command [arguments...]]\n\n"
+                    "GUI frontend for %2/%3\n\n"
+                    "Arguments:\n"
+                    "  option:\n"
+                    "    -h|--help      Print this help.\n"
+                    "    -v|--version   Print version information.\n"
+                    "    -s|--su        Use %3(1) as backend.\n"
+                    "    -d|--sudo      Use %2(8) as backend.\n"
+                    "  command          Command to run.\n"
+                    "  arguments        Optional arguments for command.\n\n").arg(app_master).arg(sudo_prog).arg(su_prog);
+        if (!err.isEmpty())
+            QMessageBox(QMessageBox::Critical, app_master, err, QMessageBox::Ok).exec();
+    }
+
+    void version()
+    {
+        QTextStream(stdout)
+            << QObject::tr("%1 version %2\n").arg(app_master).arg(app_version);
+    }
+
+    inline void env_workarounds()
+    {
+        //cleanup environment
+        //pcmanfm-qt will not start if the DBUS_SESSION_BUS_ADDRESS is preserved
+        unsetenv("DBUS_SESSION_BUS_ADDRESS");
+    }
+}
+
+Sudo::Sudo()
+    : mArgs{lxqtApp->arguments()}
+    , mBackend{BACK_NONE}
+{
+    QString cmd = QFileInfo(mArgs[0]).fileName();
+    mArgs.removeAt(0);
+    if (app_lxsu == cmd)
+        mBackend = BACK_SU;
+    else if (app_lxsudo == cmd || app_master == cmd)
+        mBackend = BACK_SUDO;
+}
+
+Sudo::~Sudo()
+{
+}
+
+int Sudo::main()
+{
+    if (0 < mArgs.size())
+    {
+        //simple option check
+        QString const & arg1 = mArgs[0];
+        if ("-h" == arg1 || "--help" == arg1)
+        {
+            usage();
+            return 0;
+        } else if ("-v" == arg1 || "--version" == arg1)
+        {
+            version();
+            return 0;
+        } else if ("-s" == arg1 || "--su" == arg1)
+        {
+            mBackend = BACK_SU;
+            mArgs.removeAt(0);
+        } else if ("-d" == arg1 || "--sudo" == arg1)
+        {
+            mBackend = BACK_SUDO;
+            mArgs.removeAt(0);
+        }
+    }
+    //any other arguments we simply forward to su/sudo
+
+    if (1 > mArgs.size())
+    {
+        usage(tr("%1: no command to run provided!").arg(app_master));
+        return 1;
+    }
+
+    if (BACK_NONE == mBackend)
+    {
+        //we were invoked through unknown link (or renamed binary)
+        usage(tr("%1: no backend chosen!").arg(app_master));
+        return 1;
+    } else if (BACK_SU == mBackend && 1 < mArgs.size())
+    {
+        QString cmd = mArgs.replaceInStrings(QRegExp(QStringLiteral("^(.*)$")), "'\\1'").join(QStringLiteral(" "));
+        QTextStream(stderr) << tr("%1: warning - got multiple arguments for %2 backend, squashing into one: %3")
+            .arg(app_master).arg(su_prog).arg(cmd);
+        mArgs.erase(++mArgs.begin(), mArgs.end());
+        mArgs[0] = std::move(cmd);
+    }
+
+    mDlg.reset(new PasswordDialog{mArgs});
+    mDlg->setModal(true);
+    lxqtApp->setActiveWindow(mDlg.data());
+
+    mChildPid = forkpty(&mPwdFd, nullptr, nullptr, nullptr);
+    if (0 == mChildPid)
+        child(); //never returns
+    else if (-1 == mChildPid)
+        QMessageBox(QMessageBox::Critical, mDlg->windowTitle()
+                , tr("Failed to fork: %1").arg(strerror(errno)), QMessageBox::Ok).exec();
+    else
+        return parent();
+
+    return 1;
+}
+
+
+void Sudo::child()
+{
+    int params_cnt = 2 //1. su/sudo & last nullptr
+        + 1 //-c for su | -E for sudo
+        + mArgs.size();
+    std::unique_ptr<char const *[]> params{new char const *[params_cnt]};
+    const char ** param_arg = params.get() + 1;
+
+    std::string program;
+    if (BACK_SU == mBackend)
+    {
+        program = su_prog.toStdString();
+        *(param_arg++) = "-c"; //run command
+    } else
+    {
+        program = sudo_prog.toStdString();
+        *(param_arg++) = "-E"; //preserve environment
+    }
+
+    params[0] = program.c_str();
+
+    std::vector<std::string> arguments;
+    for (const auto & a : mArgs)
+        arguments.push_back(a.toStdString());
+    for (const auto & a : arguments)
+        *(param_arg++) = a.c_str();
+
+    *param_arg = nullptr;
+
+    env_workarounds();
+
+    setsid(); //session leader
+    execvp(params[0], const_cast<char **>(params.get()));
+
+    //exec never returns in case of success
+    QTextStream{stderr, QIODevice::WriteOnly} << tr("%1: Failed to exec '%2': %3\n").arg(app_master).arg(params[0]).arg(strerror(errno));
+    exit(1);
+}
+
+void Sudo::stopChild()
+{
+    close(mPwdFd);
+    kill(mChildPid, SIGINT);
+    int res, status;
+    for (int cnt = 10; 0 == (res = waitpid(mChildPid, &status, WNOHANG)) && 0 < cnt; --cnt)
+        QThread::msleep(100);
+
+    if (0 == res)
+    {
+        kill(mChildPid, SIGKILL);
+        mRet = 1;
+    } else
+    {
+        mRet = WIFEXITED(status) ? WEXITSTATUS(status) : 1;
+    }
+    mChildPid = -1;
+}
+
+int Sudo::parent()
+{
+    //set the FD as non-blocking
+    if (0 != fcntl(mPwdFd, F_SETFL, O_NONBLOCK))
+    {
+        QMessageBox(QMessageBox::Critical, mDlg->windowTitle()
+                , tr("Failed to set non-block: %1").arg(strerror(errno)), QMessageBox::Ok).exec();
+        return 1;
+    }
+
+    FILE * pwd_f = fdopen(mPwdFd, "r+");
+    if (nullptr == pwd_f)
+    {
+        QMessageBox(QMessageBox::Critical, mDlg->windowTitle()
+                , tr("Failed to fdopen: %1").arg(strerror(errno)), QMessageBox::Ok).exec();
+        return 1;
+    }
+
+    QTextStream child_str{pwd_f};
+
+    QObject::connect(mDlg.data(), &QDialog::finished, [&] (int result)
+        {
+            if (QDialog::Accepted == result)
+            {
+                child_str << mDlg->password().append(nl);
+                child_str.flush();
+            } else
+            {
+                stopChild();
+                lxqtApp->quit();
+            }
+        });
+
+    QString last_line;
+    QScopedPointer<QSocketNotifier> pwd_watcher{new QSocketNotifier{mPwdFd, QSocketNotifier::Read}};
+    QObject::connect(pwd_watcher.data(), &QSocketNotifier::activated, [&]
+        {
+            QString line = child_str.readAll();
+            if (line.isEmpty())
+            {
+                pwd_watcher.reset(nullptr);
+                QString const & prog = BACK_SU == mBackend ? su_prog : sudo_prog;
+                if (last_line.startsWith(QStringLiteral("%1:").arg(prog)))
+                {
+                    pwd_watcher.reset(nullptr); //stop the notifications events
+                    stopChild();
+                    QMessageBox(QMessageBox::Critical, mDlg->windowTitle()
+                            , tr("Child '%1' process failed!\n%2").arg(prog).arg(last_line), QMessageBox::Ok).exec();
+                }
+                lxqtApp->quit();
+            } else
+            {
+                if (line.endsWith(pwd_prompt_end))
+                {
+                    //if now echo is turned off, su/sudo requests password
+                    struct termios tios;
+                    //loop to be sure we don't miss the flag (we can afford such small delay in "normal" output processing)
+                    for (size_t cnt = 10; 0 < cnt && 0 == tcgetattr(mPwdFd, &tios) && (ECHO & tios.c_lflag); --cnt)
+                        QThread::msleep(10);
+                    if (!(ECHO & tios.c_lflag))
+                    {
+                        mDlg->show();
+                        return;
+                    }
+                }
+                QTextStream{stderr, QIODevice::WriteOnly} << line;
+                //assuming text oriented output
+                QStringList lines = line.split(nl, QString::SkipEmptyParts);
+                last_line = lines.isEmpty() ? QString() : lines.back();
+            }
+
+        });
+
+    lxqtApp->exec();
+
+    if (0 < mChildPid)
+    {
+        int res, status;
+        res = waitpid(mChildPid, &status, 0);
+        mRet = (mChildPid == res && WIFEXITED(status)) ? WEXITSTATUS(status) : 1;
+    }
+
+    return mRet;
+}
+

sudo.h

@@ -0,0 +1,71 @@
+/* BEGIN_COMMON_COPYRIGHT_HEADER
+ * (c)LGPL2+
+ *
+ * LXQt - a lightweight, Qt based, desktop toolset
+ * http://lxqt.org
+ *
+ * Copyright: 2015 LXQt team
+ * Authors:
+ *   Palo Kisa <palo.kisa@gmail.com>
+ *
+ * This program or library is free software; you can redistribute it
+ * and/or modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+
+ * You should have received a copy of the GNU Lesser General
+ * Public License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301 USA
+ *
+ * END_COMMON_COPYRIGHT_HEADER */
+
+#ifndef SUDO_H
+#define SUDO_H
+
+#include <QObject>
+#include <QScopedPointer>
+#include <QStringList>
+
+class PasswordDialog;
+
+class Sudo : public QObject
+{
+    Q_OBJECT
+
+public:
+    enum backend_t
+    {
+        BACK_NONE
+            , BACK_SUDO
+            , BACK_SU
+    };
+
+public:
+    Sudo();
+    ~Sudo();
+    int main();
+private:
+    //parent methods
+    int parent();
+    void stopChild();
+
+    //child methods
+    void child();
+
+private:
+    QScopedPointer<PasswordDialog> mDlg;
+    QStringList mArgs;
+    backend_t mBackend;
+
+    int mChildPid;
+    int mPwdFd;
+    int mRet;
+};
+
+#endif //SUDO_H

translations/lxqt-sudo.ts

@@ -1,23 +1,20 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!DOCTYPE TS>
-<TS version="2.0">
+<TS version="2.1">
 <context>
     <name>PasswordDialog</name>
     <message>
         <location filename="../passworddialog.ui" line="20"/>
-        <location filename="../build/ui_passworddialog.h" line="129"/>
         <source>LXQt sudo</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <location filename="../passworddialog.ui" line="77"/>
-        <location filename="../build/ui_passworddialog.h" line="134"/>
         <source>Command:</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <location filename="../passworddialog.ui" line="84"/>
-        <location filename="../build/ui_passworddialog.h" line="135"/>
         <source>Password:</source>
         <translation type="unfinished"></translation>
     </message>
@@ -36,31 +33,70 @@ Please enter your password.</source>
 <context>
     <name>QObject</name>
     <message>
-        <location filename="../main.cpp" line="57"/>
-        <source>Usage: %1 command [arguments...]
+        <location filename="../sudo.cpp" line="63"/>
+        <source>Usage: %1 option [command [arguments...]]
 
-GUI frontend for %2
+GUI frontend for %2/%3
 
 Arguments:
-  command        Command to run.
-  arguments      Optional arguments for command.
+  option:
+    -h|--help      Print this help.
+    -v|--version   Print version information.
+    -s|--su        Use %3(1) as backend.
+    -d|--sudo      Use %2(8) as backend.
+  command          Command to run.
+  arguments        Optional arguments for command.
 
 </source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../main.cpp" line="69"/>
+        <location filename="../sudo.cpp" line="80"/>
         <source>%1 version %2
 </source>
         <translation type="unfinished"></translation>
     </message>
+</context>
+<context>
+    <name>Sudo</name>
     <message>
-        <location filename="../main.cpp" line="80"/>
+        <location filename="../sudo.cpp" line="128"/>
         <source>%1: no command to run provided!</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../main.cpp" line="131"/>
+        <location filename="../sudo.cpp" line="135"/>
+        <source>%1: no backend chosen!</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../sudo.cpp" line="140"/>
+        <source>%1: warning - got multiple arguments for %2 backend, squashing into one: %3</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../sudo.cpp" line="155"/>
+        <source>Failed to fork: %1</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../sudo.cpp" line="193"/>
+        <source>%1: Failed to exec &apos;%2&apos;: %3
+</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../sudo.cpp" line="222"/>
+        <source>Failed to set non-block: %1</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../sudo.cpp" line="230"/>
+        <source>Failed to fdopen: %1</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../sudo.cpp" line="263"/>
         <source>Child &apos;%1&apos; process failed!
 %2</source>
         <translation type="unfinished"></translation>

translations/lxqt-sudo_de.ts

@@ -1,23 +1,20 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!DOCTYPE TS>
-<TS version="2.0">
+<TS version="2.1" language="de">
 <context>
     <name>PasswordDialog</name>
     <message>
         <location filename="../passworddialog.ui" line="20"/>
-        <location filename="../build/ui_passworddialog.h" line="129"/>
         <source>LXQt sudo</source>
         <translation>LXQt sudo</translation>
     </message>
     <message>
         <location filename="../passworddialog.ui" line="77"/>
-        <location filename="../build/ui_passworddialog.h" line="134"/>
         <source>Command:</source>
         <translation>Befehl:</translation>
     </message>
     <message>
         <location filename="../passworddialog.ui" line="84"/>
-        <location filename="../build/ui_passworddialog.h" line="135"/>
         <source>Password:</source>
         <translation>Kennwort:</translation>
     </message>
@@ -37,43 +34,88 @@ Bitte Kennwort eingeben.</translation>
 <context>
     <name>QObject</name>
     <message>
-        <location filename="../main.cpp" line="57"/>
-        <source>Usage: %1 command [arguments...]
+        <location filename="../sudo.cpp" line="63"/>
+        <source>Usage: %1 option [command [arguments...]]
 
-GUI frontend for %2
+GUI frontend for %2/%3
 
 Arguments:
-  command        Command to run.
-  arguments      Optional arguments for command.
+  option:
+    -h|--help      Print this help.
+    -v|--version   Print version information.
+    -s|--su        Use %3(1) as backend.
+    -d|--sudo      Use %2(8) as backend.
+  command          Command to run.
+  arguments        Optional arguments for command.
 
 </source>
-        <translation>Verwendung: %1 command [arguments...]
+        <translation>Verwendung: %1 Option [Befehl [Argumente...]]
 
-graphische Benutzeroberfläche für %2
+Graphische Benutzeroberfläche für %2/%3
 
 Argumente:
-  command        auszuführender Befehl
-  arguments      Argumente zum auszuführenden Befehl
+  Option:
+    -h|--help      Gibt diese Hilfe aus.
+    -v|--version   Ausgabe der Versionsinformation.
+    -s|--su        Verwendet %3(1) als Backend.
+    -d|--sudo      Verwendet %2(8) als Backend.
+  Befehl           Auszuführender Befehl.
+  Argumente        Argumente zum auszuführenden Befehl.
 
 </translation>
     </message>
     <message>
-        <location filename="../main.cpp" line="69"/>
+        <location filename="../sudo.cpp" line="80"/>
         <source>%1 version %2
 </source>
         <translation>%1 Version %2
 </translation>
     </message>
+</context>
+<context>
+    <name>Sudo</name>
     <message>
-        <location filename="../main.cpp" line="80"/>
+        <location filename="../sudo.cpp" line="128"/>
         <source>%1: no command to run provided!</source>
         <translation>%1: kein auszuführender Befehl angegeben!</translation>
     </message>
     <message>
-        <location filename="../main.cpp" line="131"/>
+        <location filename="../sudo.cpp" line="135"/>
+        <source>%1: no backend chosen!</source>
+        <translation>%1: kein Backend gewählt!</translation>
+    </message>
+    <message>
+        <location filename="../sudo.cpp" line="140"/>
+        <source>%1: warning - got multiple arguments for %2 backend, squashing into one: %3</source>
+        <translation>%1: Warnung - mehrere Argumente für Backend %2 erhalten. %3 wird verwendet</translation>
+    </message>
+    <message>
+        <location filename="../sudo.cpp" line="155"/>
+        <source>Failed to fork: %1</source>
+        <translation>Abspalten des Prozesses fehlgeschlagen: %1</translation>
+    </message>
+    <message>
+        <location filename="../sudo.cpp" line="193"/>
+        <source>%1: Failed to exec &apos;%2&apos;: %3
+</source>
+        <translation>%1: Ausführen von &apos;%2&apos; fehlgeschlagen:
+%3</translation>
+    </message>
+    <message>
+        <location filename="../sudo.cpp" line="222"/>
+        <source>Failed to set non-block: %1</source>
+        <translation>Das Setzen von der Option O_NONBLOCK schlug fehl: %1</translation>
+    </message>
+    <message>
+        <location filename="../sudo.cpp" line="230"/>
+        <source>Failed to fdopen: %1</source>
+        <translation>Das Öffnen schlug fehl: %1</translation>
+    </message>
+    <message>
+        <location filename="../sudo.cpp" line="263"/>
         <source>Child &apos;%1&apos; process failed!
 %2</source>
-        <translation>nachgeordneter Prozess &apos;%1&apos; ist fehlgeschlagen!
+        <translation>Nachgeordneter Prozess &apos;%1&apos; ist fehlgeschlagen!
 %2</translation>
     </message>
 </context>

translations/lxqt-sudo_el.ts

@@ -0,0 +1,80 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE TS>
+<TS version="2.1" language="el">
+<context>
+    <name>PasswordDialog</name>
+    <message>
+        <location filename="../passworddialog.ui" line="20"/>
+        <location filename="../build/ui_passworddialog.h" line="129"/>
+        <source>LXQt sudo</source>
+        <translation>LXQt sudo</translation>
+    </message>
+    <message>
+        <location filename="../passworddialog.ui" line="77"/>
+        <location filename="../build/ui_passworddialog.h" line="134"/>
+        <source>Command:</source>
+        <translation>Εντολή:</translation>
+    </message>
+    <message>
+        <location filename="../passworddialog.ui" line="84"/>
+        <location filename="../build/ui_passworddialog.h" line="135"/>
+        <source>Password:</source>
+        <translation>Κωδικός πρόσβασης:</translation>
+    </message>
+    <message>
+        <location filename="../passworddialog.cpp" line="43"/>
+        <source>&lt;b&gt;%1&lt;/b&gt; needs administrative privileges.
+Please enter your password.</source>
+        <translation>Το &lt;b&gt;%1&lt;/b&gt; απαιτεί προνόμια διαχειριστή.
+Παρακαλώ εισαγάγετε τον κωδικό πρόσβασης.</translation>
+    </message>
+    <message>
+        <location filename="../passworddialog.cpp" line="54"/>
+        <source>Attempt #%1</source>
+        <translation>Προσπάθεια #%1</translation>
+    </message>
+</context>
+<context>
+    <name>QObject</name>
+    <message>
+        <location filename="../main.cpp" line="57"/>
+        <source>Usage: %1 command [arguments...]
+
+GUI frontend for %2
+
+Arguments:
+  command        Command to run.
+  arguments      Optional arguments for command.
+
+</source>
+        <translation>Χρήση: %1 εντολή [ορίσματα...]
+
+Περιβάλλον συστήματος υποστήριξης του %2
+
+Ορίσματα:
+  εντολή           Η εντολή προς εκτέλεση.
+  ορίσματα      Προαιρετικά ορίσματα για την εντολή.
+
+</translation>
+    </message>
+    <message>
+        <location filename="../main.cpp" line="69"/>
+        <source>%1 version %2
+</source>
+        <translation>%1 έκδοση %2
+</translation>
+    </message>
+    <message>
+        <location filename="../main.cpp" line="80"/>
+        <source>%1: no command to run provided!</source>
+        <translation>%1: δεν παρείχατε κάποια εντολή προς εκτέλεση!</translation>
+    </message>
+    <message>
+        <location filename="../main.cpp" line="131"/>
+        <source>Child &apos;%1&apos; process failed!
+%2</source>
+        <translation>Η θυγατρική διεργασία «%1» απέτυχε!
+%2</translation>
+    </message>
+</context>
+</TS>

translations/lxqt-sudo_it.ts

@@ -0,0 +1,94 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE TS>
+<TS version="2.1" language="it">
+<context>
+    <name>Communication</name>
+    <message>
+        <location filename="../communication.cpp" line="85"/>
+        <source>%1: Communication - unable to create shared memory(%2B), </source>
+        <translation>%1: Comunicazione - non è stato possibile creare memoria condivisa(%2B), </translation>
+    </message>
+    <message>
+        <location filename="../communication.cpp" line="183"/>
+        <source>%1: Communication - password is too long(%2) for aquired shared memory(%3), has to be cut-off...
+</source>
+        <translation>%1: Comunicazione - password troppo lunga(%2) per acquisire memoria condivisa(%3) deve essere accorciata...
+</translation>
+    </message>
+</context>
+<context>
+    <name>PasswordDialog</name>
+    <message>
+        <location filename="../passworddialog.ui" line="20"/>
+        <location filename="../build/ui_passworddialog.h" line="129"/>
+        <source>LXQt sudo</source>
+        <translation></translation>
+    </message>
+    <message>
+        <location filename="../passworddialog.ui" line="77"/>
+        <location filename="../build/ui_passworddialog.h" line="134"/>
+        <source>Command:</source>
+        <translation>Comando:</translation>
+    </message>
+    <message>
+        <location filename="../passworddialog.ui" line="84"/>
+        <location filename="../build/ui_passworddialog.h" line="135"/>
+        <source>Password:</source>
+        <translation></translation>
+    </message>
+    <message>
+        <location filename="../passworddialog.cpp" line="43"/>
+        <source>&lt;b&gt;%1&lt;/b&gt; needs administrative privileges.
+Please enter your password.</source>
+        <translation>&lt;b&gt;%1&lt;/b&gt; richiede privilegi di amministratore.
+Per favore inserire la password.</translation>
+    </message>
+    <message>
+        <location filename="../passworddialog.cpp" line="53"/>
+        <source>Attempt #%1</source>
+        <translation>Tentativo #%1</translation>
+    </message>
+</context>
+<context>
+    <name>QObject</name>
+    <message>
+        <location filename="../main.cpp" line="58"/>
+        <source>Usage: %1 command [arguments...]
+
+GUI frontend for %2
+
+Arguments:
+  command        Command to run.
+  arguments      Optional arguments for command.
+
+</source>
+        <translation>Uso: %1 comando [argomenti...]
+
+Frontend grafico per %2
+
+Argomenti:
+  comando        Comando da eseguire.
+  argomenti      Argomenti opzionali per il comando.
+</translation>
+    </message>
+    <message>
+        <location filename="../main.cpp" line="70"/>
+        <source>%1 version %2
+</source>
+        <translation>%1 versione %2
+</translation>
+    </message>
+    <message>
+        <location filename="../main.cpp" line="81"/>
+        <source>%1: no command to run provided!</source>
+        <translation>%1: non è stato immesso nessun comando da eseguire!</translation>
+    </message>
+    <message>
+        <location filename="../main.cpp" line="156"/>
+        <source>Child &apos;%1&apos; process failed!
+%2</source>
+        <translation>Sottoprocesso %1 fallito!
+%2</translation>
+    </message>
+</context>
+</TS>

translations/lxqt-sudo_pl.ts

@@ -0,0 +1,80 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE TS>
+<TS version="2.0">
+<context>
+    <name>PasswordDialog</name>
+    <message>
+        <location filename="../passworddialog.ui" line="20"/>
+        <location filename="../build/ui_passworddialog.h" line="129"/>
+        <source>LXQt sudo</source>
+        <translation>LXQt sudo</translation>
+    </message>
+    <message>
+        <location filename="../passworddialog.ui" line="77"/>
+        <location filename="../build/ui_passworddialog.h" line="134"/>
+        <source>Command:</source>
+        <translation>Komenda:</translation>
+    </message>
+    <message>
+        <location filename="../passworddialog.ui" line="84"/>
+        <location filename="../build/ui_passworddialog.h" line="135"/>
+        <source>Password:</source>
+        <translation>Hasło:</translation>
+    </message>
+    <message>
+        <location filename="../passworddialog.cpp" line="43"/>
+        <source>&lt;b&gt;%1&lt;/b&gt; needs administrative privileges.
+Please enter your password.</source>
+        <translation>&lt;b&gt;%1&lt;/b&gt; potrzebuje uprawnień administratora.
+Proszę wprowadź hasło.</translation>
+    </message>
+    <message>
+        <location filename="../passworddialog.cpp" line="54"/>
+        <source>Attempt #%1</source>
+        <translation>Próba #%1</translation>
+    </message>
+</context>
+<context>
+    <name>QObject</name>
+    <message>
+        <location filename="../main.cpp" line="57"/>
+        <source>Usage: %1 command [arguments...]
+
+GUI frontend for %2
+
+Arguments:
+  command        Command to run.
+  arguments      Optional arguments for command.
+
+</source>
+        <translation>Sposób użycia: %1 komenda [argumenty...]
+
+Graficzna nakładka na %2
+
+Argumenty:
+  komenda        Komenda do wykonania.
+  argumenty      Opcjonalne argumenty dla komendy.
+
+</translation>
+    </message>
+    <message>
+        <location filename="../main.cpp" line="69"/>
+        <source>%1 version %2
+</source>
+        <translation>%1 wersja %2
+</translation>
+    </message>
+    <message>
+        <location filename="../main.cpp" line="80"/>
+        <source>%1: no command to run provided!</source>
+        <translation>%1: nie podano komendy do wykonania!</translation>
+    </message>
+    <message>
+        <location filename="../main.cpp" line="131"/>
+        <source>Child &apos;%1&apos; process failed!
+%2</source>
+        <translation>Wykonanie procesu &apos;%1&apos; nie powiodło się!
+%2</translation>
+    </message>
+</context>
+</TS>

translations/lxqt-sudo_sk.ts

@@ -1,23 +1,20 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!DOCTYPE TS>
-<TS version="2.0">
+<TS version="2.1" language="sk">
 <context>
     <name>PasswordDialog</name>
     <message>
         <location filename="../passworddialog.ui" line="20"/>
-        <location filename="../build/ui_passworddialog.h" line="129"/>
         <source>LXQt sudo</source>
         <translation>LXQt sudo</translation>
     </message>
     <message>
         <location filename="../passworddialog.ui" line="77"/>
-        <location filename="../build/ui_passworddialog.h" line="134"/>
         <source>Command:</source>
         <translation>Príkaz:</translation>
     </message>
     <message>
         <location filename="../passworddialog.ui" line="84"/>
-        <location filename="../build/ui_passworddialog.h" line="135"/>
         <source>Password:</source>
         <translation>Heslo:</translation>
     </message>
@@ -37,40 +34,84 @@ Prosím, zadajte svoje heslo.</translation>
 <context>
     <name>QObject</name>
     <message>
-        <location filename="../main.cpp" line="57"/>
-        <source>Usage: %1 command [arguments...]
+        <location filename="../sudo.cpp" line="63"/>
+        <source>Usage: %1 option [command [arguments...]]
 
-GUI frontend for %2
+GUI frontend for %2/%3
 
 Arguments:
-  command        Command to run.
-  arguments      Optional arguments for command.
+  option:
+    -h|--help      Print this help.
+    -v|--version   Print version information.
+    -s|--su        Use %3(1) as backend.
+    -d|--sudo      Use %2(8) as backend.
+  command          Command to run.
+  arguments        Optional arguments for command.
 
 </source>
-        <translation>Použitie: %1 command [arguments...]
+        <translation>Použitie: %1 option [command [arguments...]]
 
-GUI frontend pre %2
+GUI frontend pre %2/%3
 
 Parametre:
+  option:
+    -h|--help      Zobraziť pomoc.
+    -v|--version   Zobraziť verziu.
+    -s|--su        Použiť %3(1) ako backend.
+    -d|--sudo      Použíť %2(8) ako backend.
   command        Príkaz na spustenie.
   arguments      Parametre príkazu.
 
 </translation>
     </message>
     <message>
-        <location filename="../main.cpp" line="69"/>
+        <location filename="../sudo.cpp" line="80"/>
         <source>%1 version %2
 </source>
         <translation>%1 verzia %2
 </translation>
     </message>
+</context>
+<context>
+    <name>Sudo</name>
     <message>
-        <location filename="../main.cpp" line="80"/>
+        <location filename="../sudo.cpp" line="128"/>
         <source>%1: no command to run provided!</source>
         <translation>%1: žiaden príkaz na spustenie!</translation>
     </message>
     <message>
-        <location filename="../main.cpp" line="131"/>
+        <location filename="../sudo.cpp" line="135"/>
+        <source>%1: no backend chosen!</source>
+        <translation>%1: nevybratý backend!</translation>
+    </message>
+    <message>
+        <location filename="../sudo.cpp" line="140"/>
+        <source>%1: warning - got multiple arguments for %2 backend, squashing into one: %3</source>
+        <translation>%1: upozornenie - zadaných viacero parametrov pre %2 backend, zlúčené do jedného: %3</translation>
+    </message>
+    <message>
+        <location filename="../sudo.cpp" line="155"/>
+        <source>Failed to fork: %1</source>
+        <translation>Zlyhal fork: %1</translation>
+    </message>
+    <message>
+        <location filename="../sudo.cpp" line="193"/>
+        <source>%1: Failed to exec &apos;%2&apos;: %3
+</source>
+        <translation>%1: Zlyhal exec &apos;%2&apos;: %3</translation>
+    </message>
+    <message>
+        <location filename="../sudo.cpp" line="222"/>
+        <source>Failed to set non-block: %1</source>
+        <translation>Zlyhalo nastavenie non-block: %1</translation>
+    </message>
+    <message>
+        <location filename="../sudo.cpp" line="230"/>
+        <source>Failed to fdopen: %1</source>
+        <translation>Zlyhal fdopen: %1</translation>
+    </message>
+    <message>
+        <location filename="../sudo.cpp" line="263"/>
         <source>Child &apos;%1&apos; process failed!
 %2</source>
         <translation>Dcérsky &apos;%1&apos; process zlyhal!

translations/lxqt-sudo_zh_TW.ts

@@ -0,0 +1,79 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE TS>
+<TS version="2.0">
+<context>
+    <name>PasswordDialog</name>
+    <message>
+        <location filename="../passworddialog.ui" line="20"/>
+        <location filename="../build/ui_passworddialog.h" line="129"/>
+        <source>LXQt sudo</source>
+        <translation>LXQt sudo</translation>
+    </message>
+    <message>
+        <location filename="../passworddialog.ui" line="77"/>
+        <location filename="../build/ui_passworddialog.h" line="134"/>
+        <source>Command:</source>
+        <translation>指令：</translation>
+    </message>
+    <message>
+        <location filename="../passworddialog.ui" line="84"/>
+        <location filename="../build/ui_passworddialog.h" line="135"/>
+        <source>Password:</source>
+        <translation>密碼：</translation>
+    </message>
+    <message>
+        <location filename="../passworddialog.cpp" line="43"/>
+        <source>&lt;b&gt;%1&lt;/b&gt; needs administrative privileges.
+Please enter your password.</source>
+        <translation>&lt;b&gt;%1&lt;/b&gt; 需要管理員權限
+請輸入您的密碼 </translation>
+    </message>
+    <message>
+        <location filename="../passworddialog.cpp" line="54"/>
+        <source>Attempt #%1</source>
+        <translation>嘗試 %1</translation>
+    </message>
+</context>
+<context>
+    <name>QObject</name>
+    <message>
+        <location filename="../main.cpp" line="57"/>
+        <source>Usage: %1 command [arguments...]
+
+GUI frontend for %2
+
+Arguments:
+  command        Command to run.
+  arguments      Optional arguments for command.
+
+</source>
+<translation>用法：%1 指令 [選項...]
+
+%2 的圖型前端
+
+選項：
+  指令           要執行的指令
+  選項           給指令的選項
+
+</translation>
+    </message>
+    <message>
+        <location filename="../main.cpp" line="69"/>
+        <source>%1 version %2
+</source>
+        <translation>%1 版本 %s</translation>
+    </message>
+    <message>
+        <location filename="../main.cpp" line="80"/>
+        <source>%1: no command to run provided!</source>
+        <translation>%1：沒有可執行的指令</translation>
+    </message>
+    <message>
+        <location filename="../main.cpp" line="131"/>
+        <source>Child &apos;%1&apos; process failed!
+%2</source>
+        <translation>子執行序&apos;%1&apos;執行失敗！
+%2</translation>
+    </message>
+</context>
+</TS>