1 files changed, 43 insertions, 0 deletions
diff --git a/c/src/exec/libcsupport/src/readlink.c b/c/src/exec/libcsupport/src/readlink.c
new file mode 100644
index 0000000000..22de51e88f
--- /dev/null
+++ b/c/src/exec/libcsupport/src/readlink.c
@@ -0,0 +1,43 @@
+/*
+ *  readlink() - POSIX 1003.1b - X.X.X - XXX
+ *
+ *  COPYRIGHT (c) 1989-1998.
+ *  On-Line Applications Research Corporation (OAR).
+ *  Copyright assigned to U.S. Government, 1994.
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.OARcorp.com/rtems/license.html.
+ *
+ *  $Id$
+ */
+
+#include "libio_.h"
+
+int readlink(
+  const char *pathname,
+  char       *buf,
+  int         bufsize
+)
+{
+  rtems_filesystem_location_info_t  loc;
+  int                               result;
+
+  result = rtems_filesystem_evaluate_path( pathname, 0, &loc, FALSE );
+  if ( result != 0 )
+     return -1;
+  
+  if (!buf)
+    set_errno_and_return_minus_one( EFAULT );
+
+  if ( !loc.ops->node_type )
+    set_errno_and_return_minus_one( ENOTSUP );
+
+  if (  (*loc.ops->node_type)( &loc ) != RTEMS_FILESYSTEM_SYM_LINK )
+    set_errno_and_return_minus_one( EINVAL );
+
+  if ( !loc.ops->readlink )
+    set_errno_and_return_minus_one( ENOTSUP );
+
+  return (*loc.ops->readlink)( &loc, buf, bufsize );
+}