gettimeofday: port recent C++ fix to Emacs

[gnulib.git] / lib / areadlink.c

diff --git a/lib/areadlink.c b/lib/areadlink.c
index 6bf9a0c..7b81685 100644 (file)
--- a/lib/areadlink.c
+++ b/lib/areadlink.c
@@ -1,7 +1,7 @@
 /* areadlink.c -- readlink wrapper to return the link name in malloc'd storage
    Unlike xreadlink and xreadlink_with_size, don't ever call exit.
 
-   Copyright (C) 2001, 2003-2007, 2009-2011 Free Software Foundation, Inc.
+   Copyright (C) 2001, 2003-2007, 2009-2013 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -26,6 +26,23 @@
 
 #include "careadlinkat.h"
 
+#include <stdlib.h>
+#include <unistd.h>
+
+/* Get the symbolic link value of FILENAME and put it into BUFFER, with
+   size BUFFER_SIZE.  This function acts like readlink but has
+   readlinkat's signature.  */
+static ssize_t
+careadlinkatcwd (int fd, char const *filename, char *buffer,
+                 size_t buffer_size)
+{
+  /* FD must be AT_FDCWD here, otherwise the caller is using this
+     function in contexts it was not meant for.  */
+  if (fd != AT_FDCWD)
+    abort ();
+  return readlink (filename, buffer, buffer_size);
+}
+
 /* Call readlink to get the symbolic link value of FILENAME.
    Return a pointer to that NUL-terminated string in malloc'd storage.
    If readlink fails, return NULL and set errno.