Blame gtk/gtkmountoperation-x11.c

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* GTK - The GIMP Toolkit
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 * Copyright (C) David Zeuthen <davidz@redhat.com>
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 * Copyright (C) 2001 Havoc Pennington
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 * Copyright (C) 2005-2007 Vincent Untz
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 *
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 * This library is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2 of the License, or (at your option) any later version.
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 *
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 * This library 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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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with this library; if not, write to the
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 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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 * Boston, MA 02111-1307, USA.
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 */
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/*
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 * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
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 * file for a list of people on the GTK+ Team.  See the ChangeLog
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 * files for a list of changes.  These files are distributed with
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 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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 */
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#include "config.h"
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#include <string.h>
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#include <stdlib.h>
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#include <gio/gio.h>
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#include "x11/gdkx.h"
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#include <X11/Xatom.h>
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#include <gtk/gtkicontheme.h>
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#include "gtkintl.h"
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/* for the kill(2) system call and errno - POSIX.1-2001 and later */
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#include <sys/types.h>
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#include <signal.h>
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#include <errno.h>
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#if defined(__OpenBSD__)
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#include <sys/param.h>
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#include <kvm.h>
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#include <fcntl.h>
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#include <sys/sysctl.h>
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#endif
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#include "gtkmountoperationprivate.h"
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#include "gtkalias.h"
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/* ---------------------------------------------------------------------------------------------------- */
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/* these functions are based on code from libwnck (LGPLv2) */
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static gboolean get_window_list   (Display   *xdisplay,
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                                   Window     xwindow,
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                                   Atom       atom,
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                                   Window   **windows,
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                                   int       *len);
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static char*    get_utf8_property (Display   *xdisplay,
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                                   Window     xwindow,
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                                   Atom       atom);
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static gboolean get_cardinal      (Display   *xdisplay,
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                                   Window     xwindow,
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                                   Atom       atom,
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                                   int       *val);
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static gboolean read_rgb_icon     (Display   *xdisplay,
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                                   Window     xwindow,
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                                   int        ideal_width,
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                                   int        ideal_height,
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                                   int       *width,
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                                   int       *height,
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                                   guchar   **pixdata);
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static gboolean
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get_cardinal (Display *xdisplay,
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              Window   xwindow,
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              Atom     atom,
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              int     *val)
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{
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  Atom type;
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  int format;
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  gulong nitems;
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  gulong bytes_after;
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  gulong *num;
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  int err, result;
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  *val = 0;
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  gdk_error_trap_push ();
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  type = None;
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  result = XGetWindowProperty (xdisplay,
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                               xwindow,
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                               atom,
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                               0, G_MAXLONG,
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                               False, XA_CARDINAL, &type, &format, &nitems,
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                               &bytes_after, (void*)&num);
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  XSync (xdisplay, False);
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  err = gdk_error_trap_pop ();
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  if (err != Success ||
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      result != Success)
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    return FALSE;
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  if (type != XA_CARDINAL)
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    {
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      XFree (num);
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      return FALSE;
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    }
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  *val = *num;
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  XFree (num);
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  return TRUE;
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}
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static char*
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get_utf8_property (Display *xdisplay,
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                   Window   xwindow,
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                   Atom     atom)
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{
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  Atom type;
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  int format;
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  gulong nitems;
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  gulong bytes_after;
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  gchar *val;
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  int err, result;
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  char *retval;
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  Atom utf8_string;
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  utf8_string = gdk_x11_get_xatom_by_name ("UTF8_STRING");
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  gdk_error_trap_push ();
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  type = None;
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  val = NULL;
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  result = XGetWindowProperty (xdisplay,
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                               xwindow,
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                               atom,
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                               0, G_MAXLONG,
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                               False, utf8_string,
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                               &type, &format, &nitems,
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                               &bytes_after, (guchar **)&val;;
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  XSync (xdisplay, False);
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  err = gdk_error_trap_pop ();
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  if (err != Success ||
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      result != Success)
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    return NULL;
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  if (type != utf8_string ||
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      format != 8 ||
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      nitems == 0)
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    {
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      if (val)
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        XFree (val);
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      return NULL;
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    }
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  if (!g_utf8_validate (val, nitems, NULL))
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    {
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      g_warning ("Property %s contained invalid UTF-8\n",
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                 gdk_x11_get_xatom_name (atom));
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      XFree (val);
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      return NULL;
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    }
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  retval = g_strndup (val, nitems);
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  XFree (val);
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  return retval;
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}
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static gboolean
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find_largest_sizes (gulong *data,
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                    gulong  nitems,
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                    int    *width,
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                    int    *height)
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{
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  *width = 0;
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  *height = 0;
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  while (nitems > 0)
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    {
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      int w, h;
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      gboolean replace;
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      replace = FALSE;
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      if (nitems < 3)
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        return FALSE; /* no space for w, h */
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      w = data[0];
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      h = data[1];
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      if (nitems < ((w * h) + 2))
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        return FALSE; /* not enough data */
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      *width = MAX (w, *width);
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      *height = MAX (h, *height);
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      data += (w * h) + 2;
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      nitems -= (w * h) + 2;
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    }
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  return TRUE;
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}
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static gboolean
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find_best_size (gulong  *data,
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                gulong   nitems,
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                int      ideal_width,
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                int      ideal_height,
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                int     *width,
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                int     *height,
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                gulong **start)
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{
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  int best_w;
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  int best_h;
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  gulong *best_start;
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  int max_width, max_height;
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  *width = 0;
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  *height = 0;
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  *start = NULL;
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  if (!find_largest_sizes (data, nitems, &max_width, &max_height))
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    return FALSE;
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  if (ideal_width < 0)
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    ideal_width = max_width;
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  if (ideal_height < 0)
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    ideal_height = max_height;
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  best_w = 0;
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  best_h = 0;
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  best_start = NULL;
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  while (nitems > 0)
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    {
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      int w, h;
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      gboolean replace;
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      replace = FALSE;
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      if (nitems < 3)
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        return FALSE; /* no space for w, h */
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      w = data[0];
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      h = data[1];
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      if (nitems < ((w * h) + 2))
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        break; /* not enough data */
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      if (best_start == NULL)
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        {
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          replace = TRUE;
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        }
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      else
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        {
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          /* work with averages */
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          const int ideal_size = (ideal_width + ideal_height) / 2;
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          int best_size = (best_w + best_h) / 2;
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          int this_size = (w + h) / 2;
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          /* larger than desired is always better than smaller */
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          if (best_size < ideal_size &&
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              this_size >= ideal_size)
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            replace = TRUE;
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          /* if we have too small, pick anything bigger */
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          else if (best_size < ideal_size &&
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                   this_size > best_size)
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            replace = TRUE;
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          /* if we have too large, pick anything smaller
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           * but still >= the ideal
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           */
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          else if (best_size > ideal_size &&
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                   this_size >= ideal_size &&
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                   this_size < best_size)
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            replace = TRUE;
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        }
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      if (replace)
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        {
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          best_start = data + 2;
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          best_w = w;
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          best_h = h;
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        }
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      data += (w * h) + 2;
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      nitems -= (w * h) + 2;
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    }
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  if (best_start)
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    {
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      *start = best_start;
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      *width = best_w;
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      *height = best_h;
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      return TRUE;
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    }
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  else
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    return FALSE;
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}
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static void
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argbdata_to_pixdata (gulong  *argb_data,
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                     int      len,
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                     guchar **pixdata)
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{
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  guchar *p;
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  int i;
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  *pixdata = g_new (guchar, len * 4);
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  p = *pixdata;
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  /* One could speed this up a lot. */
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  i = 0;
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  while (i < len)
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    {
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      guint argb;
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      guint rgba;
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      argb = argb_data[i];
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      rgba = (argb << 8) | (argb >> 24);
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      *p = rgba >> 24;
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      ++p;
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      *p = (rgba >> 16) & 0xff;
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      ++p;
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      *p = (rgba >> 8) & 0xff;
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      ++p;
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      *p = rgba & 0xff;
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      ++p;
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      ++i;
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    }
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}
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static gboolean
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read_rgb_icon (Display   *xdisplay,
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               Window     xwindow,
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               int        ideal_width,
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               int        ideal_height,
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               int       *width,
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               int       *height,
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               guchar   **pixdata)
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{
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  Atom type;
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  int format;
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  gulong nitems;
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  gulong bytes_after;
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  int result, err;
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  gulong *data;
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  gulong *best;
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  int w, h;
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  gdk_error_trap_push ();
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  type = None;
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  data = NULL;
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  result = XGetWindowProperty (xdisplay,
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                               xwindow,
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                               gdk_x11_get_xatom_by_name ("_NET_WM_ICON"),
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                               0, G_MAXLONG,
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                               False, XA_CARDINAL, &type, &format, &nitems,
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                               &bytes_after, (void*)&data);
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  XSync (xdisplay, False);
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  err = gdk_error_trap_pop ();
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  if (err != Success ||
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      result != Success)
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    return FALSE;
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  if (type != XA_CARDINAL)
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    {
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      XFree (data);
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      return FALSE;
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    }
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  if (!find_best_size (data, nitems,
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                       ideal_width, ideal_height,
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                       &w, &h, &best))
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    {
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      XFree (data);
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      return FALSE;
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    }
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  *width = w;
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  *height = h;
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  argbdata_to_pixdata (best, w * h, pixdata);
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  XFree (data);
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  return TRUE;
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}
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static void
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free_pixels (guchar *pixels, gpointer data)
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{
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  g_free (pixels);
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}
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static GdkPixbuf*
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scaled_from_pixdata (guchar *pixdata,
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                     int     w,
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                     int     h,
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                     int     new_w,
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                     int     new_h)
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{
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  GdkPixbuf *src;
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  GdkPixbuf *dest;
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  src = gdk_pixbuf_new_from_data (pixdata,
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                                  GDK_COLORSPACE_RGB,
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                                  TRUE,
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                                  8,
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                                  w, h, w * 4,
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                                  free_pixels,
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                                  NULL);
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  if (src == NULL)
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    return NULL;
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  if (w != h)
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    {
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      GdkPixbuf *tmp;
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      int size;
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      size = MAX (w, h);
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      tmp = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, size, size);
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      if (tmp != NULL)
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        {
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          gdk_pixbuf_fill (tmp, 0);
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          gdk_pixbuf_copy_area (src, 0, 0, w, h,
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                                tmp,
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                                (size - w) / 2, (size - h) / 2);
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          g_object_unref (src);
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          src = tmp;
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        }
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    }
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  if (w != new_w || h != new_h)
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    {
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      dest = gdk_pixbuf_scale_simple (src, new_w, new_h, GDK_INTERP_BILINEAR);
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      g_object_unref (G_OBJECT (src));
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    }
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  else
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    {
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      dest = src;
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    }
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  return dest;
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}
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static gboolean
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get_window_list (Display  *xdisplay,
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                 Window    xwindow,
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                 Atom      atom,
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                 Window  **windows,
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                 int      *len)
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{
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  Atom type;
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  int format;
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  gulong nitems;
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  gulong bytes_after;
Packit Service fb6fa5
  Window *data;
Packit Service fb6fa5
  int err, result;
Packit Service fb6fa5
Packit Service fb6fa5
  *windows = NULL;
Packit Service fb6fa5
  *len = 0;
Packit Service fb6fa5
Packit Service fb6fa5
  gdk_error_trap_push ();
Packit Service fb6fa5
  type = None;
Packit Service fb6fa5
  result = XGetWindowProperty (xdisplay,
Packit Service fb6fa5
                               xwindow,
Packit Service fb6fa5
                               atom,
Packit Service fb6fa5
                               0, G_MAXLONG,
Packit Service fb6fa5
                               False, XA_WINDOW, &type, &format, &nitems,
Packit Service fb6fa5
                               &bytes_after, (void*)&data);
Packit Service fb6fa5
  XSync (xdisplay, False);
Packit Service fb6fa5
  err = gdk_error_trap_pop ();
Packit Service fb6fa5
Packit Service fb6fa5
  if (err != Success ||
Packit Service fb6fa5
      result != Success)
Packit Service fb6fa5
    return FALSE;
Packit Service fb6fa5
Packit Service fb6fa5
  if (type != XA_WINDOW)
Packit Service fb6fa5
    {
Packit Service fb6fa5
      XFree (data);
Packit Service fb6fa5
      return FALSE;
Packit Service fb6fa5
    }
Packit Service fb6fa5
Packit Service fb6fa5
  *windows = g_new (Window, nitems);
Packit Service fb6fa5
  memcpy (*windows, data, sizeof (Window) * nitems);
Packit Service fb6fa5
  *len = nitems;
Packit Service fb6fa5
Packit Service fb6fa5
  XFree (data);
Packit Service fb6fa5
Packit Service fb6fa5
  return TRUE;
Packit Service fb6fa5
}
Packit Service fb6fa5
Packit Service fb6fa5
Packit Service fb6fa5
/* ---------------------------------------------------------------------------------------------------- */
Packit Service fb6fa5
Packit Service fb6fa5
struct _GtkMountOperationLookupContext
Packit Service fb6fa5
{
Packit Service fb6fa5
  /* Hash from pid (gint) -> XID (gint)
Packit Service fb6fa5
   *
Packit Service fb6fa5
   * Note that XIDs are at most 27 bits - however, also note that sizeof(XID) == 8 on
Packit Service fb6fa5
   * x86_64 - that's just xlib brokenness. So it's safe to stuff the XID into a pointer.
Packit Service fb6fa5
   */
Packit Service fb6fa5
  GHashTable *pid_to_window;
Packit Service fb6fa5
  GdkDisplay *display;
Packit Service fb6fa5
};
Packit Service fb6fa5
Packit Service fb6fa5
GtkMountOperationLookupContext *
Packit Service fb6fa5
_gtk_mount_operation_lookup_context_get (GdkDisplay *display)
Packit Service fb6fa5
{
Packit Service fb6fa5
  GtkMountOperationLookupContext *context;
Packit Service fb6fa5
  Window *mapping;
Packit Service fb6fa5
  gint mapping_length;
Packit Service fb6fa5
  gint n;
Packit Service fb6fa5
Packit Service fb6fa5
  context = g_new0 (GtkMountOperationLookupContext, 1);
Packit Service fb6fa5
Packit Service fb6fa5
  context->pid_to_window = g_hash_table_new (g_direct_hash, g_direct_equal);
Packit Service fb6fa5
  context->display = display;
Packit Service fb6fa5
Packit Service fb6fa5
  mapping = NULL;
Packit Service fb6fa5
  mapping_length = 0;
Packit Service fb6fa5
  get_window_list (GDK_DISPLAY_XDISPLAY (context->display),
Packit Service fb6fa5
                   GDK_ROOT_WINDOW(),
Packit Service fb6fa5
                   gdk_x11_get_xatom_by_name_for_display (context->display,
Packit Service fb6fa5
                                                          "_NET_CLIENT_LIST"),
Packit Service fb6fa5
                   &mapping,
Packit Service fb6fa5
                   &mapping_length);
Packit Service fb6fa5
  for (n = 0; n < mapping_length; n++)
Packit Service fb6fa5
    {
Packit Service fb6fa5
      gint pid;
Packit Service fb6fa5
Packit Service fb6fa5
      if (!get_cardinal (GDK_DISPLAY_XDISPLAY (context->display),
Packit Service fb6fa5
                         mapping[n],
Packit Service fb6fa5
                         gdk_x11_get_xatom_by_name_for_display (context->display,
Packit Service fb6fa5
                                                                "_NET_WM_PID"),
Packit Service fb6fa5
                         &pid))
Packit Service fb6fa5
        continue;
Packit Service fb6fa5
Packit Service fb6fa5
      g_hash_table_insert (context->pid_to_window,
Packit Service fb6fa5
                           GINT_TO_POINTER (pid),
Packit Service fb6fa5
                           GINT_TO_POINTER ((gint) mapping[n]));
Packit Service fb6fa5
    }
Packit Service fb6fa5
  g_free (mapping);
Packit Service fb6fa5
Packit Service fb6fa5
  return context;
Packit Service fb6fa5
}
Packit Service fb6fa5
Packit Service fb6fa5
void
Packit Service fb6fa5
_gtk_mount_operation_lookup_context_free (GtkMountOperationLookupContext *context)
Packit Service fb6fa5
{
Packit Service fb6fa5
  g_hash_table_unref (context->pid_to_window);
Packit Service fb6fa5
  g_free (context);
Packit Service fb6fa5
}
Packit Service fb6fa5
Packit Service fb6fa5
/* ---------------------------------------------------------------------------------------------------- */
Packit Service fb6fa5
Packit Service fb6fa5
#ifdef __linux__
Packit Service fb6fa5
Packit Service fb6fa5
static GPid
Packit Service fb6fa5
pid_get_parent (GPid pid)
Packit Service fb6fa5
{
Packit Service fb6fa5
  GPid ppid;
Packit Service fb6fa5
  gchar **tokens;
Packit Service fb6fa5
  gchar *stat_filename;
Packit Service fb6fa5
  gchar *stat_contents;
Packit Service fb6fa5
  gsize stat_len;
Packit Service fb6fa5
Packit Service fb6fa5
  ppid = 0;
Packit Service fb6fa5
  tokens = NULL;
Packit Service fb6fa5
  stat_contents = NULL;
Packit Service fb6fa5
  stat_filename = NULL;
Packit Service fb6fa5
Packit Service fb6fa5
  /* fail if trying to get the parent of the init process (no such thing) */
Packit Service fb6fa5
  if (pid == 1)
Packit Service fb6fa5
      goto out;
Packit Service fb6fa5
Packit Service fb6fa5
  stat_filename = g_strdup_printf ("/proc/%d/status", pid);
Packit Service fb6fa5
  if (g_file_get_contents (stat_filename,
Packit Service fb6fa5
                           &stat_contents,
Packit Service fb6fa5
                           &stat_len,
Packit Service fb6fa5
                           NULL))
Packit Service fb6fa5
    {
Packit Service fb6fa5
      guint n;
Packit Service fb6fa5
Packit Service fb6fa5
      tokens = g_strsplit (stat_contents, "\n", 0);
Packit Service fb6fa5
Packit Service fb6fa5
      for (n = 0; tokens[n] != NULL; n++)
Packit Service fb6fa5
        {
Packit Service fb6fa5
          if (g_str_has_prefix (tokens[n], "PPid:"))
Packit Service fb6fa5
            {
Packit Service fb6fa5
              gchar *endp;
Packit Service fb6fa5
Packit Service fb6fa5
              endp = NULL;
Packit Service fb6fa5
              ppid = strtoll (tokens[n] + sizeof "PPid:" - 1, &endp, 10);
Packit Service fb6fa5
              if (endp == NULL || *endp != '\0')
Packit Service fb6fa5
                {
Packit Service fb6fa5
                  g_warning ("Error parsing contents of `%s'. Parent pid is malformed.",
Packit Service fb6fa5
                             stat_filename);
Packit Service fb6fa5
                  ppid = 0;
Packit Service fb6fa5
                  goto out;
Packit Service fb6fa5
                }
Packit Service fb6fa5
Packit Service fb6fa5
              break;
Packit Service fb6fa5
            }
Packit Service fb6fa5
        }
Packit Service fb6fa5
    }
Packit Service fb6fa5
Packit Service fb6fa5
 out:
Packit Service fb6fa5
  g_strfreev (tokens);
Packit Service fb6fa5
  g_free (stat_contents);
Packit Service fb6fa5
  g_free (stat_filename);
Packit Service fb6fa5
Packit Service fb6fa5
  return ppid;
Packit Service fb6fa5
}
Packit Service fb6fa5
Packit Service fb6fa5
static gchar *
Packit Service fb6fa5
pid_get_env (GPid         pid,
Packit Service fb6fa5
             const gchar *key)
Packit Service fb6fa5
{
Packit Service fb6fa5
  gchar *ret;
Packit Service fb6fa5
  gchar *env_filename;
Packit Service fb6fa5
  gchar *env;
Packit Service fb6fa5
  gsize env_len;
Packit Service fb6fa5
  gsize key_len;
Packit Service fb6fa5
  gchar *end;
Packit Service fb6fa5
Packit Service fb6fa5
  ret = NULL;
Packit Service fb6fa5
Packit Service fb6fa5
  key_len = strlen (key);
Packit Service fb6fa5
Packit Service fb6fa5
  env_filename = g_strdup_printf ("/proc/%d/environ", pid);
Packit Service fb6fa5
  if (g_file_get_contents (env_filename,
Packit Service fb6fa5
                           &env,
Packit Service fb6fa5
                           &env_len,
Packit Service fb6fa5
                           NULL))
Packit Service fb6fa5
    {
Packit Service fb6fa5
      guint n;
Packit Service fb6fa5
Packit Service fb6fa5
      /* /proc/<pid>/environ in Linux is split at '\0' points, g_strsplit() can't handle that... */
Packit Service fb6fa5
      n = 0;
Packit Service fb6fa5
      while (TRUE)
Packit Service fb6fa5
        {
Packit Service fb6fa5
          if (env[n] == '\0' || n >= env_len)
Packit Service fb6fa5
            break;
Packit Service fb6fa5
Packit Service fb6fa5
          if (g_str_has_prefix (env + n, key) && (*(env + n + key_len) == '='))
Packit Service fb6fa5
            {
Packit Service fb6fa5
              ret = g_strdup (env + n + key_len + 1);
Packit Service fb6fa5
Packit Service fb6fa5
              /* skip invalid UTF-8 */
Packit Service fb6fa5
              if (!g_utf8_validate (ret, -1, (const gchar **) &end))
Packit Service fb6fa5
                *end = '\0';
Packit Service fb6fa5
              break;
Packit Service fb6fa5
            }
Packit Service fb6fa5
Packit Service fb6fa5
          for (; env[n] != '\0' && n < env_len; n++)
Packit Service fb6fa5
            ;
Packit Service fb6fa5
          n++;
Packit Service fb6fa5
        }
Packit Service fb6fa5
      g_free (env);
Packit Service fb6fa5
    }
Packit Service fb6fa5
  g_free (env_filename);
Packit Service fb6fa5
Packit Service fb6fa5
  return ret;
Packit Service fb6fa5
}
Packit Service fb6fa5
Packit Service fb6fa5
static gchar *
Packit Service fb6fa5
pid_get_command_line (GPid pid)
Packit Service fb6fa5
{
Packit Service fb6fa5
  gchar *cmdline_filename;
Packit Service fb6fa5
  gchar *cmdline_contents;
Packit Service fb6fa5
  gsize cmdline_len;
Packit Service fb6fa5
  guint n;
Packit Service fb6fa5
  gchar *end;
Packit Service fb6fa5
Packit Service fb6fa5
  cmdline_contents = NULL;
Packit Service fb6fa5
Packit Service fb6fa5
  cmdline_filename = g_strdup_printf ("/proc/%d/cmdline", pid);
Packit Service fb6fa5
  if (!g_file_get_contents (cmdline_filename,
Packit Service fb6fa5
                            &cmdline_contents,
Packit Service fb6fa5
                            &cmdline_len,
Packit Service fb6fa5
                            NULL))
Packit Service fb6fa5
    goto out;
Packit Service fb6fa5
Packit Service fb6fa5
  /* /proc/<pid>/cmdline separates args by NUL-bytes - replace with spaces */
Packit Service fb6fa5
  for (n = 0; n < cmdline_len - 1; n++)
Packit Service fb6fa5
    {
Packit Service fb6fa5
      if (cmdline_contents[n] == '\0')
Packit Service fb6fa5
        cmdline_contents[n] = ' ';
Packit Service fb6fa5
    }
Packit Service fb6fa5
Packit Service fb6fa5
  /* skip invalid UTF-8 */
Packit Service fb6fa5
  if (!g_utf8_validate (cmdline_contents, -1, (const gchar **) &end))
Packit Service fb6fa5
      *end = '\0';
Packit Service fb6fa5
Packit Service fb6fa5
 out:
Packit Service fb6fa5
  g_free (cmdline_filename);
Packit Service fb6fa5
Packit Service fb6fa5
  return cmdline_contents;
Packit Service fb6fa5
}
Packit Service fb6fa5
Packit Service fb6fa5
/* ---------------------------------------------------------------------------------------------------- */
Packit Service fb6fa5
#else
Packit Service fb6fa5
Packit Service fb6fa5
/* TODO: please implement for your OS - must return valid UTF-8 */
Packit Service fb6fa5
Packit Service fb6fa5
static GPid
Packit Service fb6fa5
pid_get_parent (GPid pid)
Packit Service fb6fa5
{
Packit Service fb6fa5
  return 0;
Packit Service fb6fa5
}
Packit Service fb6fa5
Packit Service fb6fa5
static gchar *
Packit Service fb6fa5
pid_get_env (GPid         pid,
Packit Service fb6fa5
             const gchar *key)
Packit Service fb6fa5
{
Packit Service fb6fa5
  return NULL;
Packit Service fb6fa5
}
Packit Service fb6fa5
Packit Service fb6fa5
static gchar *
Packit Service fb6fa5
pid_get_command_line (GPid pid)
Packit Service fb6fa5
{
Packit Service fb6fa5
  return NULL;
Packit Service fb6fa5
}
Packit Service fb6fa5
Packit Service fb6fa5
#endif
Packit Service fb6fa5
Packit Service fb6fa5
/* ---------------------------------------------------------------------------------------------------- */
Packit Service fb6fa5
Packit Service fb6fa5
static gchar *
Packit Service fb6fa5
get_name_for_window_with_pid (GtkMountOperationLookupContext *context,
Packit Service fb6fa5
                              GPid                            pid)
Packit Service fb6fa5
{
Packit Service fb6fa5
  Window window;
Packit Service fb6fa5
  Window windowid_window;
Packit Service fb6fa5
  gchar *ret;
Packit Service fb6fa5
Packit Service fb6fa5
  ret = NULL;
Packit Service fb6fa5
Packit Service fb6fa5
  window = GPOINTER_TO_INT (g_hash_table_lookup (context->pid_to_window, GINT_TO_POINTER (pid)));
Packit Service fb6fa5
  if (window == None)
Packit Service fb6fa5
    {
Packit Service fb6fa5
      gchar *windowid_value;
Packit Service fb6fa5
Packit Service fb6fa5
      /* check for $WINDOWID (set by terminals) and see if we can get the title that way */
Packit Service fb6fa5
      windowid_value = pid_get_env (pid, "WINDOWID");
Packit Service fb6fa5
      if (windowid_value != NULL)
Packit Service fb6fa5
        {
Packit Service fb6fa5
          gchar *endp;
Packit Service fb6fa5
Packit Service fb6fa5
          endp = NULL;
Packit Service fb6fa5
          windowid_window = (Window) g_ascii_strtoll (windowid_value, &endp, 10);
Packit Service fb6fa5
          if (endp != NULL || *endp == '\0')
Packit Service fb6fa5
            {
Packit Service fb6fa5
              window = windowid_window;
Packit Service fb6fa5
            }
Packit Service fb6fa5
          g_free (windowid_value);
Packit Service fb6fa5
        }
Packit Service fb6fa5
Packit Service fb6fa5
      /* otherwise, check for parents */
Packit Service fb6fa5
      if (window == None)
Packit Service fb6fa5
        {
Packit Service fb6fa5
          do
Packit Service fb6fa5
            {
Packit Service fb6fa5
              pid = pid_get_parent (pid);
Packit Service fb6fa5
              if (pid == 0)
Packit Service fb6fa5
                break;
Packit Service fb6fa5
Packit Service fb6fa5
              window = GPOINTER_TO_INT (g_hash_table_lookup (context->pid_to_window, GINT_TO_POINTER (pid)));
Packit Service fb6fa5
              if (window != None)
Packit Service fb6fa5
                break;
Packit Service fb6fa5
            }
Packit Service fb6fa5
          while (TRUE);
Packit Service fb6fa5
        }
Packit Service fb6fa5
    }
Packit Service fb6fa5
Packit Service fb6fa5
  if (window != None)
Packit Service fb6fa5
    {
Packit Service fb6fa5
      ret = get_utf8_property (GDK_DISPLAY_XDISPLAY (context->display),
Packit Service fb6fa5
                               window,
Packit Service fb6fa5
                               gdk_x11_get_xatom_by_name_for_display (context->display,
Packit Service fb6fa5
                                                                      "_NET_WM_NAME"));
Packit Service fb6fa5
      if (ret == NULL)
Packit Service fb6fa5
        ret = get_utf8_property (GDK_DISPLAY_XDISPLAY (context->display),
Packit Service fb6fa5
                                 window, gdk_x11_get_xatom_by_name_for_display (context->display,
Packit Service fb6fa5
                                                                                "_NET_WM_ICON_NAME"));
Packit Service fb6fa5
    }
Packit Service fb6fa5
Packit Service fb6fa5
  return ret;
Packit Service fb6fa5
}
Packit Service fb6fa5
Packit Service fb6fa5
/* ---------------------------------------------------------------------------------------------------- */
Packit Service fb6fa5
Packit Service fb6fa5
static GdkPixbuf *
Packit Service fb6fa5
get_pixbuf_for_window_with_pid (GtkMountOperationLookupContext *context,
Packit Service fb6fa5
                                GPid                            pid,
Packit Service fb6fa5
                                gint                            size_pixels)
Packit Service fb6fa5
{
Packit Service fb6fa5
  Window window;
Packit Service fb6fa5
  GdkPixbuf *ret;
Packit Service fb6fa5
Packit Service fb6fa5
  ret = NULL;
Packit Service fb6fa5
Packit Service fb6fa5
  window = GPOINTER_TO_INT (g_hash_table_lookup (context->pid_to_window, GINT_TO_POINTER (pid)));
Packit Service fb6fa5
  if (window == None)
Packit Service fb6fa5
    {
Packit Service fb6fa5
      /* otherwise, check for parents */
Packit Service fb6fa5
      do
Packit Service fb6fa5
        {
Packit Service fb6fa5
          pid = pid_get_parent (pid);
Packit Service fb6fa5
          if (pid == 0)
Packit Service fb6fa5
            break;
Packit Service fb6fa5
Packit Service fb6fa5
          window = GPOINTER_TO_INT (g_hash_table_lookup (context->pid_to_window, GINT_TO_POINTER (pid)));
Packit Service fb6fa5
          if (window != None)
Packit Service fb6fa5
            break;
Packit Service fb6fa5
        }
Packit Service fb6fa5
      while (TRUE);
Packit Service fb6fa5
    }
Packit Service fb6fa5
Packit Service fb6fa5
  if (window != None)
Packit Service fb6fa5
    {
Packit Service fb6fa5
      gint    width;
Packit Service fb6fa5
      gint    height;
Packit Service fb6fa5
      guchar *pixdata;
Packit Service fb6fa5
Packit Service fb6fa5
      if (read_rgb_icon (GDK_DISPLAY_XDISPLAY (context->display),
Packit Service fb6fa5
                         window,
Packit Service fb6fa5
                         size_pixels, size_pixels,
Packit Service fb6fa5
                         &width, &height,
Packit Service fb6fa5
                         &pixdata))
Packit Service fb6fa5
        {
Packit Service fb6fa5
          /* steals pixdata */
Packit Service fb6fa5
          ret = scaled_from_pixdata (pixdata,
Packit Service fb6fa5
                                     width, height,
Packit Service fb6fa5
                                     size_pixels, size_pixels);
Packit Service fb6fa5
        }
Packit Service fb6fa5
    }
Packit Service fb6fa5
Packit Service fb6fa5
  return ret;
Packit Service fb6fa5
}
Packit Service fb6fa5
Packit Service fb6fa5
/* ---------------------------------------------------------------------------------------------------- */
Packit Service fb6fa5
Packit Service fb6fa5
static const gchar *well_known_commands[] =
Packit Service fb6fa5
{
Packit Service fb6fa5
  /* translators: this string is a name for the 'less' command */
Packit Service fb6fa5
  "less", N_("Terminal Pager"),
Packit Service fb6fa5
  "top", N_("Top Command"),
Packit Service fb6fa5
  "bash", N_("Bourne Again Shell"),
Packit Service fb6fa5
  "sh", N_("Bourne Shell"),
Packit Service fb6fa5
  "zsh", N_("Z Shell"),
Packit Service fb6fa5
  NULL,
Packit Service fb6fa5
};
Packit Service fb6fa5
Packit Service fb6fa5
gboolean
Packit Service fb6fa5
_gtk_mount_operation_lookup_info (GtkMountOperationLookupContext *context,
Packit Service fb6fa5
                                  GPid                            pid,
Packit Service fb6fa5
                                  gint                            size_pixels,
Packit Service fb6fa5
                                  gchar                         **out_name,
Packit Service fb6fa5
                                  gchar                         **out_command_line,
Packit Service fb6fa5
                                  GdkPixbuf                     **out_pixbuf)
Packit Service fb6fa5
{
Packit Service fb6fa5
  g_return_val_if_fail (out_name != NULL && *out_name == NULL, FALSE);
Packit Service fb6fa5
  g_return_val_if_fail (out_command_line != NULL && *out_command_line == NULL, FALSE);
Packit Service fb6fa5
  g_return_val_if_fail (out_pixbuf != NULL && *out_pixbuf == NULL, FALSE);
Packit Service fb6fa5
Packit Service fb6fa5
  /* We perform two different lookups for name and icon size.. this is
Packit Service fb6fa5
   * because we want the name from the window with WINDOWID and this
Packit Service fb6fa5
   * normally does not give you an icon
Packit Service fb6fa5
   *
Packit Service fb6fa5
   * (the canonical example is a tab in gnome-terminal - the shell/command running
Packit Service fb6fa5
   *  in the shell will have WINDOWID set - but this window won't have an icon - so
Packit Service fb6fa5
   *  we want to continue up until the gnome-terminal window so we can get that icon)
Packit Service fb6fa5
   */
Packit Service fb6fa5
Packit Service fb6fa5
  *out_command_line = pid_get_command_line (pid);
Packit Service fb6fa5
Packit Service fb6fa5
  *out_name = get_name_for_window_with_pid (context, pid);
Packit Service fb6fa5
Packit Service fb6fa5
  *out_pixbuf = get_pixbuf_for_window_with_pid (context, pid, size_pixels);
Packit Service fb6fa5
Packit Service fb6fa5
  /* if we didn't manage to find the name via X, fall back to the basename
Packit Service fb6fa5
   * of the first element of the command line and, for maximum geek-comfort,
Packit Service fb6fa5
   * map a few well-known commands to proper translated names
Packit Service fb6fa5
   */
Packit Service fb6fa5
  if (*out_name == NULL && *out_command_line != NULL &&
Packit Service fb6fa5
      strlen (*out_command_line) > 0 && (*out_command_line)[0] != ' ')
Packit Service fb6fa5
    {
Packit Service fb6fa5
      guint n;
Packit Service fb6fa5
      gchar *s;
Packit Service fb6fa5
      gchar *p;
Packit Service fb6fa5
Packit Service fb6fa5
      /* find the first character after the first argument */
Packit Service fb6fa5
      s = strchr (*out_command_line, ' ');
Packit Service fb6fa5
      if (s == NULL)
Packit Service fb6fa5
        s = *out_command_line + strlen (*out_command_line);
Packit Service fb6fa5
Packit Service fb6fa5
      for (p = s; p > *out_command_line; p--)
Packit Service fb6fa5
        {
Packit Service fb6fa5
          if (*p == '/')
Packit Service fb6fa5
            {
Packit Service fb6fa5
              p++;
Packit Service fb6fa5
              break;
Packit Service fb6fa5
            }
Packit Service fb6fa5
        }
Packit Service fb6fa5
Packit Service fb6fa5
      *out_name = g_strndup (p, s - p);
Packit Service fb6fa5
Packit Service fb6fa5
      for (n = 0; well_known_commands[n] != NULL; n += 2)
Packit Service fb6fa5
        {
Packit Service fb6fa5
          /* sometimes the command is prefixed with a -, e.g. '-bash' instead
Packit Service fb6fa5
           * of 'bash' - handle that as well
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           */
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          if ((strcmp (well_known_commands[n], *out_name) == 0) ||
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              ((*out_name)[0] == '-' && (strcmp (well_known_commands[n], (*out_name) + 1) == 0)))
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            {
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              g_free (*out_name);
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              *out_name = g_strdup (_(well_known_commands[n+1]));
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              break;
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            }
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        }
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    }
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  return TRUE;
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}
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gboolean
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_gtk_mount_operation_kill_process (GPid      pid,
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                                   GError  **error)
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{
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  gboolean ret;
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  ret = TRUE;
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  if (kill ((pid_t) pid, SIGTERM) != 0)
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    {
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      int errsv = errno;
Packit Service fb6fa5
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      /* TODO: On EPERM, we could use a setuid helper using polkit (very easy to implement
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       *       via pkexec(1)) to allow the user to e.g. authenticate to gain the authorization
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       *       to kill the process. But that's not how things currently work.
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       */
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      ret = FALSE;
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      g_set_error (error,
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                   G_IO_ERROR,
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                   g_io_error_from_errno (errsv),
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                   _("Cannot end process with PID %d: %s"),
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                   pid,
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                   g_strerror (errsv));
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    }
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  return ret;
Packit Service fb6fa5
}