--- /dev/null
+/* -*- 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;
+}