#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.