epoll: make sure EPOLLET flag does not get clobbered

[user/henk/code/inspircd.git] / src / inspircd.cpp

diff --git a/src/inspircd.cpp b/src/inspircd.cpp
index 86223ae95bd47e628817d7d37e36e4e91c6ef7ca..005a11dd7c239e502932e956905defbfa7fc059c 100644 (file)
--- a/src/inspircd.cpp
+++ b/src/inspircd.cpp
@@ -1,16 +1,31 @@
-/*       +------------------------------------+
- *       | Inspire Internet Relay Chat Daemon |
- *       +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
  *
- *  InspIRCd: (C) 2002-2010 InspIRCd Development Team
- * See: http://wiki.inspircd.org/Credits
+ *   Copyright (C) 2012 William Pitcock <nenolod@dereferenced.org>
+ *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ *   Copyright (C) 2003-2008 Craig Edwards <craigedwards@brainbox.cc>
+ *   Copyright (C) 2008 Uli Schlachter <psychon@znc.in>
+ *   Copyright (C) 2006-2008 Robin Burchell <robin+git@viroteck.net>
+ *   Copyright (C) 2006-2007 Oliver Lupton <oliverlupton@gmail.com>
+ *   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
+ *   Copyright (C) 2007 Burlex <???@???>
+ *   Copyright (C) 2003 Craig McLure <craig@chatspike.net>
+ *   Copyright (C) 2003 randomdan <???@???>
  *
- * This program is free but copyrighted software; see
- *         the file COPYING for details.
+ * This file is part of InspIRCd.  InspIRCd 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, version 2.
  *
- * ---------------------------------------------------
+ * 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, see <http://www.gnu.org/licenses/>.
  */
 
+
 /* $Core */
 #include "inspircd.h"
 #include "inspircd_version.h"
@@ -595,23 +610,36 @@ InspIRCd::InspIRCd(int argc, char** argv) :
                }
        }
 
-       if (isatty(0) && isatty(1) && isatty(2))
+       /* Explicitly shut down stdio's stdin/stdout/stderr.
+        *
+        * The previous logic here was to only do this if stdio was connected to a controlling
+        * terminal.  However, we must do this always to avoid information leaks and other
+        * problems related to stdio.
+        *
+        * The only exception is if we are in debug mode.
+        *
+        *    -- nenolod
+        */
+       if ((!do_nofork) && (!do_testsuite) && (!Config->cmdline.forcedebug))
        {
-               /* We didn't start from a TTY, we must have started from a background process -
-                * e.g. we are restarting, or being launched by cron. Dont kill parent, and dont
-                * close stdin/stdout
-                */
-               if ((!do_nofork) && (!do_testsuite))
-               {
-                       fclose(stdin);
-                       fclose(stderr);
-                       if (!Config->cmdline.forcedebug)
-                               fclose(stdout);
-               }
-               else
-               {
-                       Logs->Log("STARTUP", DEFAULT,"Keeping pseudo-tty open as we are running in the foreground.");
-               }
+               int fd;
+
+               fclose(stdin);
+               fclose(stderr);
+               fclose(stdout);
+
+               fd = open("/dev/null", O_RDWR);
+               if (dup2(fd, 0) < 0)
+                       Logs->Log("STARTUP", DEFAULT, "Failed to dup /dev/null to stdin.");
+               if (dup2(fd, 1) < 0)
+                       Logs->Log("STARTUP", DEFAULT, "Failed to dup /dev/null to stdout.");
+               if (dup2(fd, 2) < 0)
+                       Logs->Log("STARTUP", DEFAULT, "Failed to dup /dev/null to stderr.");
+               close(fd);
+       }
+       else
+       {
+               Logs->Log("STARTUP", DEFAULT,"Keeping pseudo-tty open as we are running in the foreground.");
        }
 #else
        WindowsIPC = new IPC;