1 /* Open a stdio stream on an anonymous temporary file. Hurd version.
2 Copyright (C) 2001-2016 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
27 /* This returns a new stream opened on a temporary file (generated
28 by tmpnam). The file is opened with mode "w+b" (binary read/write).
29 If we couldn't generate a unique filename or the file couldn't
30 be opened, NULL is returned. */
39 /* Get a port to the directory that will contain the file. */
40 const char *dirname
= __libc_secure_getenv ("TMPDIR") ?: P_tmpdir
;
41 file_t dir
= __file_name_lookup (dirname
, 0, 0);
42 if (dir
== MACH_PORT_NULL
)
45 /* Create an unnamed file in the temporary directory. */
46 err
= __dir_mkfile (dir
, O_RDWR
, S_IRUSR
| S_IWUSR
, &file
);
47 __mach_port_deallocate (__mach_task_self (), dir
);
49 return __hurd_fail (err
), NULL
;
51 /* Get a file descriptor for that port. POSIX.1 requires that streams
52 returned by tmpfile allocate file descriptors as fopen would. */
53 fd
= _hurd_intern_fd (file
, O_RDWR
, 1); /* dealloc on error */
57 /* Open a stream on the unnamed file.
58 It will cease to exist when this stream is closed. */
59 if ((f
= _IO_fdopen (fd
, "w+b")) == NULL
)
65 #include <shlib-compat.h>
66 versioned_symbol (libc
, __tmpfile
, tmpfile
, GLIBC_2_1
);
68 weak_alias (__tmpfile
, tmpfile64
)