[Feature][ZXW-33]merge ZXW 0428 version
Change-Id: I11f167edfea428d9fab198ff00ff1364932d1b0b
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'")