27114e2046
* sysdeps/generic/tmpfile.c: ... here. * sysdeps/mach/hurd/tmpfile.c: New file. * hurd/fopenport.c (__fopenport): Renamed from fopenport. [USE_IN_LIBIO] (fopencookie): #define as _IO_fopencookie. (fopenport): Define as weak alias. * libio/iofopncook.c (_IO_fopencookie): Move forward declaration ... * libio/libioP.h: ... to here.
67 lines
2.2 KiB
C
67 lines
2.2 KiB
C
/* Open a stdio stream on an anonymous temporary file. Hurd version.
|
|
Copyright (C) 2001 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, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <stdio.h>
|
|
#include <hurd.h>
|
|
#include <hurd/fs.h>
|
|
#include <fcntl.h>
|
|
|
|
#ifdef USE_IN_LIBIO
|
|
# include <iolibio.h>
|
|
# define __fdopen _IO_fdopen
|
|
# define tmpfile __new_tmpfile
|
|
#endif
|
|
|
|
/* 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;
|
|
FILE *f;
|
|
|
|
/* Get a port to the directory that will contain the file. */
|
|
const char *dirname = __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;
|
|
|
|
/* Open a stream on the port to the unnamed file.
|
|
It will cease to exist when this stream is closed. */
|
|
if ((f = __fopenport (file, "w+b")) == NULL)
|
|
__mach_port_deallocate (__mach_task_self (), file);
|
|
|
|
return f;
|
|
}
|
|
|
|
#ifdef USE_IN_LIBIO
|
|
# undef tmpfile
|
|
# include <shlib-compat.h>
|
|
versioned_symbol (libc, __new_tmpfile, tmpfile, GLIBC_2_1);
|
|
#endif
|