1 files changed, 43 insertions, 0 deletions
diff --git a/REORG.TODO/string/strerror.c b/REORG.TODO/string/strerror.c
new file mode 100644
index 0000000000..0d235c6b6b
--- /dev/null
+++ b/REORG.TODO/string/strerror.c
@@ -0,0 +1,43 @@
+/* Copyright (C) 1991-2017 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 Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <libintl.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+
+/* Return a string describing the errno code in ERRNUM.
+   The storage is good only until the next call to strerror.
+   Writing to the storage causes undefined behavior.  */
+libc_freeres_ptr (static char *buf);
+
+char *
+strerror (int errnum)
+{
+  char *ret = __strerror_r (errnum, NULL, 0);
+  int saved_errno;
+
+  if (__glibc_likely (ret != NULL))
+    return ret;
+  saved_errno = errno;
+  if (buf == NULL)
+    buf = malloc (1024);
+  __set_errno (saved_errno);
+  if (buf == NULL)
+    return _("Unknown error");
+  return __strerror_r (errnum, buf, 1024);
+}