]> Pileus Git - ~andy/gtk/blobdiff - gtk/gtkmountoperation-x11.c
Bug 587485 – GMountOperation::show-processes support
[~andy/gtk] / gtk / gtkmountoperation-x11.c
diff --git a/gtk/gtkmountoperation-x11.c b/gtk/gtkmountoperation-x11.c
new file mode 100644 (file)
index 0000000..655854e
--- /dev/null
@@ -0,0 +1,967 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* GTK - The GIMP Toolkit
+ * Copyright (C) David Zeuthen <davidz@redhat.com>
+ * Copyright (C) 2001 Havoc Pennington
+ * Copyright (C) 2005-2007 Vincent Untz
+ *
+ * This 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 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., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+/*
+ * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
+ * file for a list of people on the GTK+ Team.  See the ChangeLog
+ * files for a list of changes.  These files are distributed with
+ * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
+ */
+
+#include "config.h"
+
+#include <string.h>
+#include <stdlib.h>
+#include <gio/gio.h>
+#include "x11/gdkx.h"
+#include <X11/Xatom.h>
+#include <gtk/gtkicontheme.h>
+#include "gtkintl.h"
+
+/* for the kill(2) system call and errno - POSIX.1-2001 and later */
+#include <sys/types.h>
+#include <signal.h>
+#include <errno.h>
+
+#include "gtkmountoperationprivate.h"
+
+
+/* ---------------------------------------------------------------------------------------------------- */
+/* these functions are based on code from libwnck (LGPLv2) */
+
+static gboolean get_window_list   (Display   *xdisplay,
+                                   Window     xwindow,
+                                   Atom       atom,
+                                   Window   **windows,
+                                   int       *len);
+
+static char*    get_utf8_property (Display   *xdisplay,
+                                   Window     xwindow,
+                                   Atom       atom);
+
+static gboolean get_cardinal      (Display   *xdisplay,
+                                   Window     xwindow,
+                                   Atom       atom,
+                                   int       *val);
+
+static gboolean read_rgb_icon     (Display   *xdisplay,
+                                   Window     xwindow,
+                                   int        ideal_width,
+                                   int        ideal_height,
+                                   int       *width,
+                                   int       *height,
+                                   guchar   **pixdata);
+
+
+static gboolean
+get_cardinal (Display *xdisplay,
+              Window   xwindow,
+              Atom     atom,
+              int     *val)
+{
+  Atom type;
+  int format;
+  gulong nitems;
+  gulong bytes_after;
+  gulong *num;
+  int err, result;
+
+  *val = 0;
+
+  gdk_error_trap_push ();
+  type = None;
+  result = XGetWindowProperty (xdisplay,
+                               xwindow,
+                               atom,
+                               0, G_MAXLONG,
+                               False, XA_CARDINAL, &type, &format, &nitems,
+                               &bytes_after, (void*)&num);
+  XSync (xdisplay, False);
+  err = gdk_error_trap_pop ();
+
+  if (err != Success ||
+      result != Success)
+    return FALSE;
+
+  if (type != XA_CARDINAL)
+    {
+      XFree (num);
+      return FALSE;
+    }
+
+  *val = *num;
+
+  XFree (num);
+
+  return TRUE;
+}
+
+static char*
+get_utf8_property (Display *xdisplay,
+                   Window   xwindow,
+                   Atom     atom)
+{
+  Atom type;
+  int format;
+  gulong nitems;
+  gulong bytes_after;
+  gchar *val;
+  int err, result;
+  char *retval;
+  Atom utf8_string;
+
+  utf8_string = gdk_x11_get_xatom_by_name ("UTF8_STRING");
+
+  gdk_error_trap_push ();
+  type = None;
+  val = NULL;
+  result = XGetWindowProperty (xdisplay,
+                               xwindow,
+                               atom,
+                               0, G_MAXLONG,
+                               False, utf8_string,
+                               &type, &format, &nitems,
+                               &bytes_after, (guchar **)&val);
+  XSync (xdisplay, False);
+  err = gdk_error_trap_pop ();
+
+  if (err != Success ||
+      result != Success)
+    return NULL;
+
+  if (type != utf8_string ||
+      format != 8 ||
+      nitems == 0)
+    {
+      if (val)
+        XFree (val);
+      return NULL;
+    }
+
+  if (!g_utf8_validate (val, nitems, NULL))
+    {
+      g_warning ("Property %s contained invalid UTF-8\n",
+                 gdk_x11_get_xatom_name (atom));
+      XFree (val);
+      return NULL;
+    }
+
+  retval = g_strndup (val, nitems);
+
+  XFree (val);
+
+  return retval;
+}
+
+static gboolean
+find_largest_sizes (gulong *data,
+                    gulong  nitems,
+                    int    *width,
+                    int    *height)
+{
+  *width = 0;
+  *height = 0;
+
+  while (nitems > 0)
+    {
+      int w, h;
+      gboolean replace;
+
+      replace = FALSE;
+
+      if (nitems < 3)
+        return FALSE; /* no space for w, h */
+
+      w = data[0];
+      h = data[1];
+
+      if (nitems < ((w * h) + 2))
+        return FALSE; /* not enough data */
+
+      *width = MAX (w, *width);
+      *height = MAX (h, *height);
+
+      data += (w * h) + 2;
+      nitems -= (w * h) + 2;
+    }
+
+  return TRUE;
+}
+
+static gboolean
+find_best_size (gulong  *data,
+                gulong   nitems,
+                int      ideal_width,
+                int      ideal_height,
+                int     *width,
+                int     *height,
+                gulong **start)
+{
+  int best_w;
+  int best_h;
+  gulong *best_start;
+  int max_width, max_height;
+
+  *width = 0;
+  *height = 0;
+  *start = NULL;
+
+  if (!find_largest_sizes (data, nitems, &max_width, &max_height))
+    return FALSE;
+
+  if (ideal_width < 0)
+    ideal_width = max_width;
+  if (ideal_height < 0)
+    ideal_height = max_height;
+
+  best_w = 0;
+  best_h = 0;
+  best_start = NULL;
+
+  while (nitems > 0)
+    {
+      int w, h;
+      gboolean replace;
+
+      replace = FALSE;
+
+      if (nitems < 3)
+        return FALSE; /* no space for w, h */
+
+      w = data[0];
+      h = data[1];
+
+      if (nitems < ((w * h) + 2))
+        break; /* not enough data */
+
+      if (best_start == NULL)
+        {
+          replace = TRUE;
+        }
+      else
+        {
+          /* work with averages */
+          const int ideal_size = (ideal_width + ideal_height) / 2;
+          int best_size = (best_w + best_h) / 2;
+          int this_size = (w + h) / 2;
+
+          /* larger than desired is always better than smaller */
+          if (best_size < ideal_size &&
+              this_size >= ideal_size)
+            replace = TRUE;
+          /* if we have too small, pick anything bigger */
+          else if (best_size < ideal_size &&
+                   this_size > best_size)
+            replace = TRUE;
+          /* if we have too large, pick anything smaller
+           * but still >= the ideal
+           */
+          else if (best_size > ideal_size &&
+                   this_size >= ideal_size &&
+                   this_size < best_size)
+            replace = TRUE;
+        }
+
+      if (replace)
+        {
+          best_start = data + 2;
+          best_w = w;
+          best_h = h;
+        }
+
+      data += (w * h) + 2;
+      nitems -= (w * h) + 2;
+    }
+
+  if (best_start)
+    {
+      *start = best_start;
+      *width = best_w;
+      *height = best_h;
+      return TRUE;
+    }
+  else
+    return FALSE;
+}
+
+static void
+argbdata_to_pixdata (gulong  *argb_data,
+                     int      len,
+                     guchar **pixdata)
+{
+  guchar *p;
+  int i;
+
+  *pixdata = g_new (guchar, len * 4);
+  p = *pixdata;
+
+  /* One could speed this up a lot. */
+  i = 0;
+  while (i < len)
+    {
+      guint argb;
+      guint rgba;
+
+      argb = argb_data[i];
+      rgba = (argb << 8) | (argb >> 24);
+
+      *p = rgba >> 24;
+      ++p;
+      *p = (rgba >> 16) & 0xff;
+      ++p;
+      *p = (rgba >> 8) & 0xff;
+      ++p;
+      *p = rgba & 0xff;
+      ++p;
+
+      ++i;
+    }
+}
+
+static gboolean
+read_rgb_icon (Display   *xdisplay,
+               Window     xwindow,
+               int        ideal_width,
+               int        ideal_height,
+               int       *width,
+               int       *height,
+               guchar   **pixdata)
+{
+  Atom type;
+  int format;
+  gulong nitems;
+  gulong bytes_after;
+  int result, err;
+  gulong *data;
+  gulong *best;
+  int w, h;
+
+  gdk_error_trap_push ();
+  type = None;
+  data = NULL;
+  result = XGetWindowProperty (xdisplay,
+                               xwindow,
+                               gdk_x11_get_xatom_by_name ("_NET_WM_ICON"),
+                               0, G_MAXLONG,
+                               False, XA_CARDINAL, &type, &format, &nitems,
+                               &bytes_after, (void*)&data);
+
+  XSync (xdisplay, False);
+  err = gdk_error_trap_pop ();
+
+  if (err != Success ||
+      result != Success)
+    return FALSE;
+
+  if (type != XA_CARDINAL)
+    {
+      XFree (data);
+      return FALSE;
+    }
+
+  if (!find_best_size (data, nitems,
+                       ideal_width, ideal_height,
+                       &w, &h, &best))
+    {
+      XFree (data);
+      return FALSE;
+    }
+
+  *width = w;
+  *height = h;
+
+  argbdata_to_pixdata (best, w * h, pixdata);
+
+  XFree (data);
+
+  return TRUE;
+}
+
+static void
+free_pixels (guchar *pixels, gpointer data)
+{
+  g_free (pixels);
+}
+
+static GdkPixbuf*
+scaled_from_pixdata (guchar *pixdata,
+                     int     w,
+                     int     h,
+                     int     new_w,
+                     int     new_h)
+{
+  GdkPixbuf *src;
+  GdkPixbuf *dest;
+
+  src = gdk_pixbuf_new_from_data (pixdata,
+                                  GDK_COLORSPACE_RGB,
+                                  TRUE,
+                                  8,
+                                  w, h, w * 4,
+                                  free_pixels,
+                                  NULL);
+
+  if (src == NULL)
+    return NULL;
+
+  if (w != h)
+    {
+      GdkPixbuf *tmp;
+      int size;
+
+      size = MAX (w, h);
+
+      tmp = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, size, size);
+
+      if (tmp != NULL)
+        {
+          gdk_pixbuf_fill (tmp, 0);
+          gdk_pixbuf_copy_area (src, 0, 0, w, h,
+                                tmp,
+                                (size - w) / 2, (size - h) / 2);
+
+          g_object_unref (src);
+          src = tmp;
+        }
+    }
+
+  if (w != new_w || h != new_h)
+    {
+      dest = gdk_pixbuf_scale_simple (src, new_w, new_h, GDK_INTERP_BILINEAR);
+
+      g_object_unref (G_OBJECT (src));
+    }
+  else
+    {
+      dest = src;
+    }
+
+  return dest;
+}
+
+static gboolean
+get_window_list (Display  *xdisplay,
+                 Window    xwindow,
+                 Atom      atom,
+                 Window  **windows,
+                 int      *len)
+{
+  Atom type;
+  int format;
+  gulong nitems;
+  gulong bytes_after;
+  Window *data;
+  int err, result;
+
+  *windows = NULL;
+  *len = 0;
+
+  gdk_error_trap_push ();
+  type = None;
+  result = XGetWindowProperty (xdisplay,
+                               xwindow,
+                               atom,
+                               0, G_MAXLONG,
+                               False, XA_WINDOW, &type, &format, &nitems,
+                               &bytes_after, (void*)&data);
+  XSync (xdisplay, False);
+  err = gdk_error_trap_pop ();
+
+  if (err != Success ||
+      result != Success)
+    return FALSE;
+
+  if (type != XA_WINDOW)
+    {
+      XFree (data);
+      return FALSE;
+    }
+
+  *windows = g_new (Window, nitems);
+  memcpy (*windows, data, sizeof (Window) * nitems);
+  *len = nitems;
+
+  XFree (data);
+
+  return TRUE;
+}
+
+
+/* ---------------------------------------------------------------------------------------------------- */
+
+struct _GtkMountOperationLookupContext
+{
+  /* Hash from pid (gint) -> XID (gint)
+   *
+   * Note that XIDs are at most 27 bits - however, also note that sizeof(XID) == 8 on
+   * x86_64 - that's just xlib brokenness. So it's safe to stuff the XID into a pointer.
+   */
+  GHashTable *pid_to_window;
+  GdkDisplay *display;
+};
+
+GtkMountOperationLookupContext *
+_gtk_mount_operation_lookup_context_get (GdkDisplay *display)
+{
+  GtkMountOperationLookupContext *context;
+  Window *mapping;
+  gint mapping_length;
+  gint n;
+
+  context = g_new0 (GtkMountOperationLookupContext, 1);
+
+  context->pid_to_window = g_hash_table_new (g_direct_hash, g_direct_equal);
+  context->display = display;
+
+  mapping = NULL;
+  mapping_length = 0;
+  get_window_list (GDK_DISPLAY_XDISPLAY (context->display),
+                   GDK_ROOT_WINDOW(),
+                   gdk_x11_get_xatom_by_name_for_display (context->display,
+                                                          "_NET_CLIENT_LIST"),
+                   &mapping,
+                   &mapping_length);
+  for (n = 0; n < mapping_length; n++)
+    {
+      gint pid;
+
+      if (!get_cardinal (GDK_DISPLAY_XDISPLAY (context->display),
+                         mapping[n],
+                         gdk_x11_get_xatom_by_name_for_display (context->display,
+                                                                "_NET_WM_PID"),
+                         &pid))
+        continue;
+
+      g_hash_table_insert (context->pid_to_window,
+                           GINT_TO_POINTER (pid),
+                           GINT_TO_POINTER ((gint) mapping[n]));
+    }
+  g_free (mapping);
+
+  return context;
+}
+
+void
+_gtk_mount_operation_lookup_context_free (GtkMountOperationLookupContext *context)
+{
+  g_hash_table_unref (context->pid_to_window);
+  g_free (context);
+}
+
+/* ---------------------------------------------------------------------------------------------------- */
+
+#ifdef __linux__
+
+static GPid
+pid_get_parent (GPid pid)
+{
+  GPid ppid;
+  gchar **tokens;
+  gchar *stat_filename;
+  gchar *stat_contents;
+  gsize stat_len;
+
+  ppid = 0;
+  tokens = NULL;
+  stat_contents = NULL;
+  stat_filename = NULL;
+
+  /* fail if trying to get the parent of the init process (no such thing) */
+  if (pid == 1)
+      goto out;
+
+  stat_filename = g_strdup_printf ("/proc/%d/status", pid);
+  if (g_file_get_contents (stat_filename,
+                           &stat_contents,
+                           &stat_len,
+                           NULL))
+    {
+      guint n;
+
+      tokens = g_strsplit (stat_contents, "\n", 0);
+
+      for (n = 0; tokens[n] != NULL; n++)
+        {
+          if (g_str_has_prefix (tokens[n], "PPid:"))
+            {
+              gchar *endp;
+
+              endp = NULL;
+              ppid = strtoll (tokens[n] + sizeof "PPid:" - 1, &endp, 10);
+              if (endp == NULL || *endp != '\0')
+                {
+                  g_warning ("Error parsing contents of `%s'. Parent pid is malformed.",
+                             stat_filename);
+                  ppid = 0;
+                  goto out;
+                }
+
+              break;
+            }
+        }
+    }
+
+ out:
+  g_strfreev (tokens);
+  g_free (stat_contents);
+  g_free (stat_filename);
+
+  return ppid;
+}
+
+static gchar *
+pid_get_env (GPid         pid,
+             const gchar *key)
+{
+  gchar *ret;
+  gchar *env_filename;
+  gchar *env;
+  gsize env_len;
+  gsize key_len;
+  gchar *end;
+
+  ret = NULL;
+
+  key_len = strlen (key);
+
+  env_filename = g_strdup_printf ("/proc/%d/environ", pid);
+  if (g_file_get_contents (env_filename,
+                           &env,
+                           &env_len,
+                           NULL))
+    {
+      guint n;
+
+      /* /proc/<pid>/environ in Linux is split at '\0' points, g_strsplit() can't handle that... */
+      n = 0;
+      while (TRUE)
+        {
+          if (env[n] == '\0' || n >= env_len)
+            break;
+
+          if (g_str_has_prefix (env + n, key) && (*(env + n + key_len) == '='))
+            {
+              ret = g_strdup (env + n + key_len + 1);
+
+              /* skip invalid UTF-8 */
+              if (!g_utf8_validate (ret, -1, (const gchar *) &end))
+                *end = '\0';
+              break;
+            }
+
+          for (; env[n] != '\0' && n < env_len; n++)
+            ;
+          n++;
+        }
+      g_free (env);
+    }
+  g_free (env_filename);
+
+  return ret;
+}
+
+static gchar *
+pid_get_command_line (GPid pid)
+{
+  gchar *cmdline_filename;
+  gchar *cmdline_contents;
+  gsize cmdline_len;
+  guint n;
+  gchar *end;
+
+  cmdline_contents = NULL;
+
+  cmdline_filename = g_strdup_printf ("/proc/%d/cmdline", pid);
+  if (!g_file_get_contents (cmdline_filename,
+                            &cmdline_contents,
+                            &cmdline_len,
+                            NULL))
+    goto out;
+
+  /* /proc/<pid>/cmdline separates args by NUL-bytes - replace with spaces */
+  for (n = 0; n < cmdline_len - 1; n++)
+    {
+      if (cmdline_contents[n] == '\0')
+        cmdline_contents[n] = ' ';
+    }
+
+  /* skip invalid UTF-8 */
+  if (!g_utf8_validate (cmdline_contents, -1, (const gchar *) &end))
+      *end = '\0';
+
+ out:
+  g_free (cmdline_filename);
+
+  return cmdline_contents;
+}
+
+/* ---------------------------------------------------------------------------------------------------- */
+#else
+
+/* TODO: please implement for your OS - must return valid UTF-8 */
+
+static GPid
+pid_get_parent (GPid pid)
+{
+  return 0;
+}
+
+static gchar *
+pid_get_env (GPid         pid,
+             const gchar *key)
+{
+  return NULL;
+}
+
+static gchar *
+pid_get_command_line (GPid pid)
+{
+  return NULL;
+}
+
+#endif
+
+/* ---------------------------------------------------------------------------------------------------- */
+
+static gchar *
+get_name_for_window_with_pid (GtkMountOperationLookupContext *context,
+                              GPid                            pid)
+{
+  Window window;
+  Window windowid_window;
+  gchar *ret;
+
+  ret = NULL;
+
+  window = GPOINTER_TO_INT (g_hash_table_lookup (context->pid_to_window, GINT_TO_POINTER (pid)));
+  if (window == None)
+    {
+      gchar *windowid_value;
+
+      /* check for $WINDOWID (set by terminals) and see if we can get the title that way */
+      windowid_value = pid_get_env (pid, "WINDOWID");
+      if (windowid_value != NULL)
+        {
+          gchar *endp;
+
+          endp = NULL;
+          windowid_window = (Window) g_ascii_strtoll (windowid_value, &endp, 10);
+          if (endp != NULL || *endp == '\0')
+            {
+              window = windowid_window;
+            }
+          g_free (windowid_value);
+        }
+
+      /* otherwise, check for parents */
+      if (window == None)
+        {
+          do
+            {
+              pid = pid_get_parent (pid);
+              if (pid == 0)
+                break;
+
+              window = GPOINTER_TO_INT (g_hash_table_lookup (context->pid_to_window, GINT_TO_POINTER (pid)));
+              if (window != None)
+                break;
+            }
+          while (TRUE);
+        }
+    }
+
+  if (window != None)
+    {
+      ret = get_utf8_property (GDK_DISPLAY_XDISPLAY (context->display),
+                               window,
+                               gdk_x11_get_xatom_by_name_for_display (context->display,
+                                                                      "_NET_WM_NAME"));
+      if (ret == NULL)
+        ret = get_utf8_property (GDK_DISPLAY_XDISPLAY (context->display),
+                                 window, gdk_x11_get_xatom_by_name_for_display (context->display,
+                                                                                "_NET_WM_ICON_NAME"));
+    }
+
+  return ret;
+}
+
+/* ---------------------------------------------------------------------------------------------------- */
+
+static GdkPixbuf *
+get_pixbuf_for_window_with_pid (GtkMountOperationLookupContext *context,
+                                GPid                            pid,
+                                gint                            size_pixels)
+{
+  Window window;
+  GdkPixbuf *ret;
+
+  ret = NULL;
+
+  window = GPOINTER_TO_INT (g_hash_table_lookup (context->pid_to_window, GINT_TO_POINTER (pid)));
+  if (window == None)
+    {
+      /* otherwise, check for parents */
+      do
+        {
+          pid = pid_get_parent (pid);
+          if (pid == 0)
+            break;
+
+          window = GPOINTER_TO_INT (g_hash_table_lookup (context->pid_to_window, GINT_TO_POINTER (pid)));
+          if (window != None)
+            break;
+        }
+      while (TRUE);
+    }
+
+  if (window != None)
+    {
+      gint    width;
+      gint    height;
+      guchar *pixdata;
+
+      if (read_rgb_icon (GDK_DISPLAY_XDISPLAY (context->display),
+                         window,
+                         size_pixels, size_pixels,
+                         &width, &height,
+                         &pixdata))
+        {
+          /* steals pixdata */
+          ret = scaled_from_pixdata (pixdata,
+                                     width, height,
+                                     size_pixels, size_pixels);
+        }
+    }
+
+  return ret;
+}
+
+/* ---------------------------------------------------------------------------------------------------- */
+
+static const gchar *well_known_commands[] =
+{
+  "less", N_("Terminal Pager"),
+  "top", N_("Top Command"),
+  "bash", N_("Bourne Again Shell"),
+  "sh", N_("Bourne Shell"),
+  "zsh", N_("Z Shell"),
+  NULL,
+};
+
+gboolean
+_gtk_mount_operation_lookup_info (GtkMountOperationLookupContext *context,
+                                  GPid                            pid,
+                                  gint                            size_pixels,
+                                  gchar                         **out_name,
+                                  gchar                         **out_command_line,
+                                  GdkPixbuf                     **out_pixbuf)
+{
+  g_return_val_if_fail (out_name != NULL && *out_name == NULL, FALSE);
+  g_return_val_if_fail (out_command_line != NULL && *out_command_line == NULL, FALSE);
+  g_return_val_if_fail (out_pixbuf != NULL && *out_pixbuf == NULL, FALSE);
+
+  /* We perform two different lookups for name and icon size.. this is
+   * because we want the name from the window with WINDOWID and this
+   * normally does not give you an icon
+   *
+   * (the canonical example is a tab in gnome-terminal - the shell/command running
+   *  in the shell will have WINDOWID set - but this window won't have an icon - so
+   *  we want to continue up until the gnome-terminal window so we can get that icon)
+   */
+
+  *out_command_line = pid_get_command_line (pid);
+
+  *out_name = get_name_for_window_with_pid (context, pid);
+
+  *out_pixbuf = get_pixbuf_for_window_with_pid (context, pid, size_pixels);
+
+  /* if we didn't manage to find the name via X, fall back to the basename
+   * of the first element of the command line and, for maximum geek-comfort,
+   * map a few well-known commands to proper translated names
+   */
+  if (*out_name == NULL && *out_command_line != NULL &&
+      strlen (*out_command_line) > 0 && (*out_command_line)[0] != ' ')
+    {
+      guint n;
+      gchar *s;
+      gchar *p;
+
+      /* find the first character after the first argument */
+      s = strchr (*out_command_line, ' ');
+      if (s == NULL)
+        s = *out_command_line + strlen (*out_command_line);
+
+      for (p = s; p > *out_command_line; p--)
+        {
+          if (*p == '/')
+            {
+              p++;
+              break;
+            }
+        }
+
+      *out_name = g_strndup (p, s - p);
+
+      for (n = 0; well_known_commands[n] != NULL; n += 2)
+        {
+          /* sometimes the command is prefixed with a -, e.g. '-bash' instead
+           * of 'bash' - handle that as well
+           */
+          if ((strcmp (well_known_commands[n], *out_name) == 0) ||
+              ((*out_name)[0] == '-' && (strcmp (well_known_commands[n], (*out_name) + 1) == 0)))
+            {
+              g_free (*out_name);
+              *out_name = g_strdup (_(well_known_commands[n+1]));
+              break;
+            }
+        }
+    }
+
+  return TRUE;
+}
+
+gboolean
+_gtk_mount_operation_kill_process (GPid      pid,
+                                   GError  **error)
+{
+  gboolean ret;
+
+  ret = TRUE;
+
+  if (kill ((pid_t) pid, SIGTERM) != 0)
+    {
+      /* TODO: On EPERM, we could use a setuid helper using polkit (very easy to implement
+       *       via pkexec(1)) to allow the user to e.g. authenticate to gain the authorization
+       *       to kill the process. But that's not how things currently work.
+       */
+
+      ret = FALSE;
+      g_set_error (error,
+                   G_IO_ERROR,
+                   g_io_error_from_errno (errno),
+                   _("Cannot end process with pid %d: %s"),
+                   pid,
+                   strerror (errno));
+    }
+
+  return ret;
+}