1 files changed, 47 insertions, 0 deletions
diff --git a/io/getwd.c b/io/getwd.c
new file mode 100644
index 0000000000..fdda1cac22
--- /dev/null
+++ b/io/getwd.c
@@ -0,0 +1,47 @@
+/* Copyright (C) 1991, 1992 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 Library General Public License as
+published by the Free Software Foundation; either version 2 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <limits.h>
+#include <string.h>
+#include <unistd.h>
+
+/* Put the absolute pathname of the current working direction in BUF.
+   If successful, return BUF.  If not, put an error message in
+   BUF and return NULL.  BUF should be at least PATH_MAX bytes long.  */
+char *
+DEFUN(getwd, (buf), char *buf)
+{
+  if (buf == NULL)
+    {
+      errno = EINVAL;
+      return NULL;
+    }
+
+#ifndef	PATH_MAX
+#define	PATH_MAX	1024	/* Arbitrary; this function is unreliable.  */
+#endif
+  if (getcwd (buf, PATH_MAX) == NULL)
+    {
+      (void) strncpy (buf, strerror (errno), PATH_MAX);
+      return NULL;
+    }
+
+  return buf;
+}