diff --git a/ap/libc/glibc/glibc-2.23/stdio-common/tmpnam.c b/ap/libc/glibc/glibc-2.23/stdio-common/tmpnam.c
new file mode 100644
index 0000000..6f0b1d5
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/stdio-common/tmpnam.c
@@ -0,0 +1,51 @@
+/* Copyright (C) 1991-2016 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 <stdio.h>
+#include <string.h>
+
+static char tmpnam_buffer[L_tmpnam];
+
+/* Generate a unique filename in P_tmpdir.
+
+   This function is *not* thread safe!  */
+char *
+tmpnam (char *s)
+{
+  /* By using two buffers we manage to be thread safe in the case
+     where S != NULL.  */
+  char tmpbufmem[L_tmpnam];
+  char *tmpbuf = s ?: tmpbufmem;
+
+  /* In the following call we use the buffer pointed to by S if
+     non-NULL although we don't know the size.  But we limit the size
+     to L_tmpnam characters in any case.  */
+  if (__builtin_expect (__path_search (tmpbuf, L_tmpnam, NULL, NULL, 0),
+			0))
+    return NULL;
+
+  if (__glibc_unlikely (__gen_tempname (tmpbuf, 0, 0, __GT_NOCREATE)))
+    return NULL;
+
+  if (s == NULL)
+    return (char *) memcpy (tmpnam_buffer, tmpbuf, L_tmpnam);
+
+  return s;
+}
+
+link_warning (tmpnam,
+	      "the use of `tmpnam' is dangerous, better use `mkstemp'")