upstream/1.1.0_cvsrelease/1.1.0_cvs

1 files changed, 0 insertions, 186 deletions

diff --git a/gnu/uucp/libunix/detach.c b/gnu/uucp/libunix/detach.c
deleted file mode 100644
index 41e1969b5efc..000000000000
--- a/gnu/uucp/libunix/detach.c
+++ /dev/null
@@ -1,186 +0,0 @@
-/* detach.c
-   Detach from the controlling terminal.
-
-   Copyright (C) 1992 Ian Lance Taylor
-
-   This file is part of the Taylor UUCP package.
-
-   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., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-   The author of the program may be contacted at ian@airs.com or
-   c/o Infinity Development Systems, P.O. Box 520, Waltham, MA 02254.
-   */
-
-#include "uucp.h"
-
-#include "uudefs.h"
-#include "system.h"
-#include "sysdep.h"
-
-#include <errno.h>
-
-#if HAVE_SYS_IOCTL_H
-#include <sys/ioctl.h>
-#endif
-
-#ifdef TIOCNOTTY
-#define HAVE_TIOCNOTTY 1
-#else
-#define HAVE_TIOCNOTTY 0 
-#endif
-
-#if HAVE_FCNTL_H
-#include <fcntl.h>
-#else
-#if HAVE_SYS_FILE_H
-#include <sys/file.h>
-#endif
-#endif
-
-#ifndef O_RDONLY
-#define O_RDONLY 0
-#define O_WRONLY 1
-#define O_RDWR 2
-#endif
-
-/* Detach from the controlling terminal.  This is called by uucico if
-   it is calling out to another system, so that it can receive SIGHUP
-   signals from the port it calls out on.  It is also called by uucico
-   just before it starts uuxqt, so that uuxqt is completely
-   independent of the terminal.  */
-
-void
-usysdep_detach ()
-{
-#if ! HAVE_BSD_PGRP || ! HAVE_TIOCNOTTY
-
-  pid_t igrp;
-
-  /* First make sure we are not a process group leader.  If we have
-     TIOCNOTTY, this doesn't matter, since TIOCNOTTY sets our process
-     group to 0 anyhow.  */
-
-#if HAVE_BSD_PGRP
-  igrp = getpgrp (0);
-#else
-  igrp = getpgrp ();
-#endif
-
-  if (igrp == getpid ())
-    {
-      boolean fignored;
-      pid_t ipid;
-
-      /* Ignore SIGHUP, since our process group leader is about to
-	 die.  */
-      usset_signal (SIGHUP, SIG_IGN, FALSE, &fignored);
-
-      ipid = ixsfork ();
-      if (ipid < 0)
-	ulog (LOG_FATAL, "fork: %s", strerror (errno));
-
-      if (ipid != 0)
-	_exit (EXIT_SUCCESS);
-
-      /* We'll always wind up as a child of process number 1, right?
-	 Right?  We have to wait for our parent to die before
-	 reenabling SIGHUP.  */
-      while (getppid () != 1)
-	sleep (1);
-
-      ulog_id (getpid ());
-
-      /* Restore SIGHUP catcher if it wasn't being ignored.  */
-      if (! fignored)
-	usset_signal (SIGHUP, ussignal, TRUE, (boolean *) NULL);
-    }
-
-#endif /* ! HAVE_BSD_PGRP || ! HAVE_TIOCNOTTY */
-
-#if HAVE_TIOCNOTTY
-  /* Lose the original controlling terminal.  If standard input has
-     been reopened to /dev/null, this will do no harm.  If another
-     port has been opened to become the controlling terminal, it
-     should have been detached when it was closed.  */
-  (void) ioctl (0, TIOCNOTTY, (char *) NULL);
-#endif
-
-  /* Close stdin, stdout and stderr and reopen them on /dev/null, to
-     make sure we have no connection at all to the terminal.  */
-  (void) close (0);
-  (void) close (1);
-  (void) close (2);
-  if (open ((char *) "/dev/null", O_RDONLY) != 0
-      || open ((char *) "/dev/null", O_WRONLY) != 1
-      || open ((char *) "/dev/null", O_WRONLY) != 2)
-    ulog (LOG_FATAL, "open (/dev/null): %s", strerror (errno));
-
-#if HAVE_BSD_PGRP
-
-  /* Make sure our process group ID is set to 0.  On BSD TIOCNOTTY
-     should already have set it 0, so this will do no harm.  On System
-     V we presumably did not execute the TIOCNOTTY call, but the
-     System V setpgrp will detach the controlling terminal anyhow.
-     This lets us use the same code on both BSD and System V, provided
-     it compiles correctly, which life easier for the configure
-     script.  We don't output an error if we got EPERM because some
-     BSD variants don't permit this usage of setpgrp (which means they
-     don't provide any way to pick up a new controlling terminal).  */
-
-  if (setpgrp (0, 0) < 0)
-    {
-      if (errno != EPERM)
-	ulog (LOG_ERROR, "setpgrp: %s", strerror (errno));
-    }
-
-#else /* ! HAVE_BSD_PGRP */
-
-#if HAVE_SETSID
-
-  /* Under POSIX the setsid call creates a new session for which we
-     are the process group leader.  It also detaches us from our
-     controlling terminal.  I'm using the BSD setpgrp call first
-     because they should be equivalent for my purposes, but it turns
-     out that on Ultrix 4.0 setsid prevents us from ever acquiring
-     another controlling terminal (it does not change our process
-     group, and Ultrix 4.0 prevents us from setting our process group
-     to 0).  */
-  (void) setsid ();
-
-#else /* ! HAVE_SETSID */
-
-#if HAVE_SETPGRP
-
-  /* Now we assume we have the System V setpgrp, which takes no
-     arguments, and we couldn't compile the HAVE_BSD_PGRP code above
-     because there was a prototype somewhere in scope.  On System V
-     setpgrp makes us the leader of a new process group and also
-     detaches the controlling terminal.  */
-
-  if (setpgrp () < 0)
-    ulog (LOG_ERROR, "setpgrp: %s", strerror (errno));
-
-#else /* ! HAVE_SETPGRP */
-
- #error Must detach from controlling terminal
-
-#endif /* HAVE_SETPGRP */
-#endif /* ! HAVE_SETSID */
-#endif /* ! HAVE_BSD_PGRP */
-
-  /* At this point we have completely detached from our controlling
-     terminal.  The next terminal device we open will probably become
-     our controlling terminal.  */
-}