--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libiberty/getcwd.c	Fri Jul 17 14:47:48 2009 +0900
@@ -0,0 +1,62 @@
+/* Emulate getcwd using getwd.
+   This function is in the public domain. */
+
+/*
+
+@deftypefn Supplemental char* getcwd (char *@var{pathname}, int @var{len})
+
+Copy the absolute pathname for the current working directory into
+@var{pathname}, which is assumed to point to a buffer of at least
+@var{len} bytes, and return a pointer to the buffer.  If the current
+directory's path doesn't fit in @var{len} characters, the result is
+@code{NULL} and @code{errno} is set.  If @var{pathname} is a null pointer,
+@code{getcwd} will obtain @var{len} bytes of space using
+@code{malloc}.
+
+@end deftypefn
+
+*/
+
+#include "config.h"
+
+#ifdef HAVE_SYS_PARAM_H
+#include <sys/param.h>
+#endif
+#include <errno.h>
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+
+extern char *getwd ();
+extern int errno;
+
+#ifndef MAXPATHLEN
+#define MAXPATHLEN 1024
+#endif
+
+char *
+getcwd (char *buf, size_t len)
+{
+  char ourbuf[MAXPATHLEN];
+  char *result;
+
+  result = getwd (ourbuf);
+  if (result) {
+    if (strlen (ourbuf) >= len) {
+      errno = ERANGE;
+      return 0;
+    }
+    if (!buf) {
+       buf = (char*)malloc(len);
+       if (!buf) {
+           errno = ENOMEM;
+	   return 0;
+       }
+    }
+    strcpy (buf, ourbuf);
+  }
+  return buf;
+}