diff options
author | William Jon McCann <mccann@jhu.edu> | 2007-08-14 17:03:00 -0400 |
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committer | William Jon McCann <mccann@jhu.edu> | 2007-08-14 17:03:00 -0400 |
commit | e56a95f64c9c9f57adebf6cb3e6c88790cec40e4 (patch) | |
tree | 0cb197ebc031483cb9eaa74d41801b6bda6887a3 /tools/linux/ck-get-x11-display-device.c | |
parent | dc97e6caabc9932922d26f3400424626462f5ad2 (diff) |
move tools out of linux subdirectory since they apparently work on solaris
Diffstat (limited to 'tools/linux/ck-get-x11-display-device.c')
-rw-r--r-- | tools/linux/ck-get-x11-display-device.c | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/tools/linux/ck-get-x11-display-device.c b/tools/linux/ck-get-x11-display-device.c deleted file mode 100644 index 2d414c6..0000000 --- a/tools/linux/ck-get-x11-display-device.c +++ /dev/null @@ -1,152 +0,0 @@ -/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- - * - * Copyright (C) 2007 William Jon McCann <mccann@jhu.edu> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA - * 02111-1307, USA. - * - * Authors: William Jon McCann <mccann@jhu.edu> - * - */ - -#include "config.h" - -#include <stdlib.h> -#include <stdio.h> -#include <errno.h> -#include <sys/types.h> -#include <sys/socket.h> - -#include <X11/Xlib.h> -#include <glib.h> - -#include "proc.h" - -static char * -get_tty_for_pid (int pid) -{ - GError *error; - char *device; - gboolean res; - proc_stat_t *xorg_stat; - - error = NULL; - res = proc_stat_new_for_pid (pid, &xorg_stat, &error); - if (! res) { - if (error != NULL) { - g_warning ("stat on pid %d failed: %s", pid, error->message); - g_error_free (error); - } - /* keep the tty value */ - return NULL; - } - - device = proc_stat_get_tty (xorg_stat); - proc_stat_free (xorg_stat); - return device; -} - -static int -get_peer_pid (int fd) -{ - int pid = -1; -#ifdef SO_PEERCRED - struct ucred cr; - socklen_t cr_len; - - cr_len = sizeof (cr); - - if (getsockopt (fd, SOL_SOCKET, SO_PEERCRED, &cr, &cr_len) == 0 && cr_len == sizeof (cr)) { - /* paranoia check for peer running as root */ - if (cr.uid == 0) { - pid = cr.pid; - } - } else { - g_warning ("Failed to getsockopt() credentials, returned len %d/%d: %s\n", - cr_len, - (int) sizeof (cr), - g_strerror (errno)); - } -#endif - return pid; -} - -static Display * -display_init (char *display_name) -{ - Display *xdisplay; - - if (display_name == NULL) { - display_name = g_getenv ("DISPLAY"); - } - - if (display_name == NULL) { - g_warning ("DISPLAY is not set"); - exit (1); - } - - xdisplay = XOpenDisplay (display_name); - if (xdisplay == NULL) { - g_warning ("cannot open display: %s", display_name ? display_name : ""); - exit (1); - } - - return xdisplay; -} - -int -main (int argc, - char **argv) -{ - int fd; - int ret; - Display *xdisplay; - static char *display = NULL; - GError *error; - GOptionContext *context; - static GOptionEntry entries [] = { - { "display", 0, 0, G_OPTION_ARG_STRING, &display, "display name", NULL }, - { NULL } - }; - - ret = 1; - - context = g_option_context_new (NULL); - g_option_context_add_main_entries (context, entries, NULL); - error = NULL; - ret = g_option_context_parse (context, &argc, &argv, &error); - g_option_context_free (context); - - xdisplay = display_init (display); - - fd = ConnectionNumber (xdisplay); - - if (fd > 0) { - int pid; - char *device; - - ret = 0; - pid = get_peer_pid (fd); - if (pid != -1) { - device = get_tty_for_pid (pid); - if (device != NULL) { - printf ("%s\n", device); - g_free (device); - } - } - } - - return ret; -} |