1 /* Open a stdio stream on an anonymous temporary file. Hurd version.
2 Copyright (C) 2001,02 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, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
29 # define __fdopen INTUSE(_IO_fdopen)
30 # define tmpfile __new_tmpfile
33 /* This returns a new stream opened on a temporary file (generated
34 by tmpnam). The file is opened with mode "w+b" (binary read/write).
35 If we couldn't generate a unique filename or the file couldn't
36 be opened, NULL is returned. */
45 /* Get a port to the directory that will contain the file. */
46 const char *dirname = __secure_getenv ("TMPDIR") ?: P_tmpdir;
47 file_t dir = __file_name_lookup (dirname, 0, 0);
48 if (dir == MACH_PORT_NULL)
51 /* Create an unnamed file in the temporary directory. */
52 err = __dir_mkfile (dir, O_RDWR, S_IRUSR | S_IWUSR, &file);
53 __mach_port_deallocate (__mach_task_self (), dir);
55 return __hurd_fail (err), NULL;
57 /* Get a file descriptor for that port. POSIX.1 requires that streams
58 returned by tmpfile allocate file descriptors as fopen would. */
59 fd = _hurd_intern_fd (file, O_RDWR, 1); /* dealloc on error */
63 /* Open a stream on the unnamed file.
64 It will cease to exist when this stream is closed. */
65 if ((f = __fdopen (fd, "w+b")) == NULL)
73 # include <shlib-compat.h>
74 versioned_symbol (libc, __new_tmpfile, tmpfile, GLIBC_2_1);
77 weak_alias (tmpfile, tmpfile64)