1 files changed, 59 insertions, 0 deletions
diff --git a/libc/unistd/confstr.c b/libc/unistd/confstr.c
new file mode 100644
index 000000000..017cf1e8e
--- /dev/null
+++ b/libc/unistd/confstr.c
@@ -0,0 +1,59 @@
+/* Copyright (C) 1991, 1996, 1997, 2000 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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <stddef.h>
+#include <errno.h>
+#include <unistd.h>
+#include <string.h>
+
+#define CS_PATH "/bin:/usr/bin"
+
+/* If BUF is not NULL and LEN > 0, fill in at most LEN - 1 bytes
+   of BUF with the value corresponding to NAME and zero-terminate BUF.
+   Return the number of bytes required to hold NAME's entire value.  */
+size_t confstr ( int name, char *buf, size_t len)
+{
+  const char *string;
+  size_t string_len;
+
+  switch (name)
+    {
+    case _CS_PATH:
+      {
+	static const char cs_path[] = CS_PATH;
+	string = cs_path;
+	string_len = sizeof (cs_path);
+      }
+      break;
+    default:
+      __set_errno (EINVAL);
+      return 0;
+    }
+
+  if (len > 0 && buf != NULL)
+    {
+      if (string_len <= len)
+	memcpy (buf, string, string_len);
+      else
+	{
+	  memcpy (buf, string, len - 1);
+	  buf[len - 1] = '\0';
+	}
+    }
+  return string_len;
+}