| /* Open a stdio stream on an anonymous temporary file. Hurd version. |
| Copyright (C) 2001-2014 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 <hurd.h> |
| #include <hurd/fs.h> |
| #include <hurd/fd.h> |
| #include <fcntl.h> |
| #include <unistd.h> |
| #include <iolibio.h> |
| |
| /* This returns a new stream opened on a temporary file (generated |
| by tmpnam). The file is opened with mode "w+b" (binary read/write). |
| If we couldn't generate a unique filename or the file couldn't |
| be opened, NULL is returned. */ |
| FILE * |
| __tmpfile (void) |
| { |
| error_t err; |
| file_t file; |
| int fd; |
| FILE *f; |
| |
| /* Get a port to the directory that will contain the file. */ |
| const char *dirname = __libc_secure_getenv ("TMPDIR") ?: P_tmpdir; |
| file_t dir = __file_name_lookup (dirname, 0, 0); |
| if (dir == MACH_PORT_NULL) |
| return NULL; |
| |
| /* Create an unnamed file in the temporary directory. */ |
| err = __dir_mkfile (dir, O_RDWR, S_IRUSR | S_IWUSR, &file); |
| __mach_port_deallocate (__mach_task_self (), dir); |
| if (err) |
| return __hurd_fail (err), NULL; |
| |
| /* Get a file descriptor for that port. POSIX.1 requires that streams |
| returned by tmpfile allocate file descriptors as fopen would. */ |
| fd = _hurd_intern_fd (file, O_RDWR, 1); /* dealloc on error */ |
| if (fd < 0) |
| return NULL; |
| |
| /* Open a stream on the unnamed file. |
| It will cease to exist when this stream is closed. */ |
| if ((f = _IO_fdopen (fd, "w+b")) == NULL) |
| __close (fd); |
| |
| return f; |
| } |
| |
| #include <shlib-compat.h> |
| versioned_symbol (libc, __tmpfile, tmpfile, GLIBC_2_1); |
| |
| weak_alias (__tmpfile, tmpfile64) |