1 files changed, 32 insertions, 0 deletions
diff --git a/libc/termios/isatty.c b/libc/termios/isatty.c
new file mode 100644
index 000000000..7532f334b
--- /dev/null
+++ b/libc/termios/isatty.c
@@ -0,0 +1,32 @@
+/* Copyright (C) 1991, 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C 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 2.1 of the License, or (at your option) any later version.
+
+   The GNU C 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 the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <unistd.h>
+#include <termios.h>
+
+libc_hidden_proto(isatty)
+libc_hidden_proto(tcgetattr)
+
+/* Return 1 if FD is a terminal, 0 if not.  */
+int isatty (int fd)
+{
+  struct termios term;
+
+  return tcgetattr (fd, &term) == 0;
+}
+libc_hidden_def(isatty)