1/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18#include <shlib-compat.h>
19#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1)
20
21#define _IO_USE_OLD_IO_FILE
22#include <stdio.h>
23#include <unistd.h>
24#include <iolibio.h>
25
26/* This returns a new stream opened on a temporary file (generated
27 by tmpnam). The file is opened with mode "w+b" (binary read/write).
28 If we couldn't generate a unique filename or the file couldn't
29 be opened, NULL is returned. */
30FILE *
31attribute_compat_text_section
32__old_tmpfile (void)
33{
34 char buf[FILENAME_MAX];
35 int fd;
36 FILE *f;
37
38 if (__path_search (buf, FILENAME_MAX, NULL, "tmpf", 0))
39 return NULL;
40 fd = __gen_tempname (buf, 0, 0, __GT_FILE);
41 if (fd < 0)
42 return NULL;
43
44 /* Note that this relies on the Unix semantics that
45 a file is not really removed until it is closed. */
46 (void) __unlink (buf);
47
48 if ((f = _IO_old_fdopen (fd, "w+b")) == NULL)
49 __close (fd);
50
51 return f;
52}
53
54compat_symbol (libc, __old_tmpfile, tmpfile, GLIBC_2_0);
55#endif
56