2 files changed, 42 insertions, 0 deletions
diff --git a/gnulib b/gnulib
deleted file mode 160000
-Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1
diff --git a/gnulib/lib/tcgetsid.c b/gnulib/lib/tcgetsid.c
new file mode 100644
index 0000000..838fb75
--- /dev/null
+++ b/gnulib/lib/tcgetsid.c
@@ -0,0 +1,42 @@
+/* Determine the session ID of the controlling terminal of the current process.
+   Copyright (C) 2010-2011 Free Software Foundation, Inc.
+
+   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, 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+#include <config.h>
+
+#define USE_OLD_TTY /* needed on OpenBSD 4.5, so that TIOCGSID gets defined */
+
+/* Specification.  */
+#include <termios.h>
+
+#include <errno.h>
+#include <sys/ioctl.h>
+
+pid_t
+tcgetsid (int fd)
+{
+#ifdef TIOCGSID /* MacOS X, OpenBSD */
+  int sid;
+
+  if (ioctl (fd, TIOCGSID, &sid) < 0)
+    return -1; /* errno is set here */
+
+  return sid;
+#else /* FreeBSD, Cygwin, mingw */
+  errno = ENOSYS;
+  return -1;
+#endif
+}