/* open.c. Implementation of the _open syscall for newlib
|
/* open.c. Implementation of the _open syscall for newlib
|
|
|
Copyright (C) 2004, Jacob Bower
|
Copyright (C) 2004, Jacob Bower
|
Copyright (C) 2010, Embecosm Limited <info@embecosm.com>
|
Copyright (C) 2010, Embecosm Limited <info@embecosm.com>
|
|
|
Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>
|
Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>
|
|
|
This file is part of Newlib.
|
This file is part of Newlib.
|
|
|
The original work by Jacob Bower is provided as-is without any kind of
|
The original work by Jacob Bower is provided as-is without any kind of
|
warranty. Use it at your own risk!
|
warranty. Use it at your own risk!
|
|
|
All subsequent work is bound by version 3 of the GPL as follows.
|
All subsequent work is bound by version 3 of the GPL as follows.
|
|
|
This program is free software; you can redistribute it and/or modify it
|
This program is free software; you can redistribute it and/or modify it
|
under the terms of the GNU General Public License as published by the Free
|
under the terms of the GNU General Public License as published by the Free
|
Software Foundation; either version 3 of the License, or (at your option)
|
Software Foundation; either version 3 of the License, or (at your option)
|
any later version.
|
any later version.
|
|
|
This program is distributed in the hope that it will be useful, but WITHOUT
|
This program is distributed in the hope that it will be useful, but WITHOUT
|
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
more details.
|
more details.
|
|
|
You should have received a copy of the GNU General Public License along
|
You should have received a copy of the GNU General Public License along
|
with this program. If not, see <http:#www.gnu.org/licenses/>. */
|
with this program. If not, see <http:#www.gnu.org/licenses/>. */
|
/* -------------------------------------------------------------------------- */
|
/* -------------------------------------------------------------------------- */
|
/* This program is commented throughout in a fashion suitable for processing
|
/* This program is commented throughout in a fashion suitable for processing
|
with Doxygen. */
|
with Doxygen. */
|
/* -------------------------------------------------------------------------- */
|
/* -------------------------------------------------------------------------- */
|
|
|
#include <errno.h>
|
#include <errno.h>
|
|
|
|
|
#undef errno
|
#undef errno
|
extern int errno;
|
extern int errno;
|
|
|
|
|
/* -------------------------------------------------------------------------- */
|
/* -------------------------------------------------------------------------- */
|
/*!Open a file.
|
/*!Open a file.
|
|
|
We have no filesystem, so cannot open files.
|
We have no filesystem, so cannot open files.
|
|
|
Remember that this function is *not* reentrant, so no static state should
|
Remember that this function is *not* reentrant, so no static state should
|
be held.
|
be held.
|
|
|
@param[in] name The file name to open
|
@param[in] name The file name to open
|
@param[in] flags The flags for opening
|
@param[in] flags The flags for opening
|
@param[in] mode Mode of opening
|
@param[in] mode Mode of opening
|
|
|
@return -1 to indicate failure, with an error code in the global variable
|
@return -1 to indicate failure, with an error code in the global variable
|
errno. */
|
errno. */
|
/* -------------------------------------------------------------------------- */
|
/* -------------------------------------------------------------------------- */
|
int
|
int
|
_open (const char *name,
|
_open (const char *name,
|
int flags,
|
int flags,
|
int mode)
|
int mode)
|
{
|
{
|
errno = ENOSYS;
|
errno = ENOSYS;
|
return -1; /* Always fails */
|
return -1; /* Always fails */
|
|
|
} /* _open () */
|
} /* _open () */
|
|
|
