Subversion Repositories openrisc

/*#######################################################################

# RDOS operating system

# Copyright (C) 1988-2006, Leif Ekblad

#

# This 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.

#

# This 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 this library; if not, write to the Free Software

# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

#

# The author of this program may be contacted at leif@rdos.net

#

# open.c

# open function implementation

#

##########################################################################*/

#include "config.h"

#include <_ansi.h>

#include <_syslist.h>

#include <fcntl.h>

#include <errno.h>

#include "rdos.h"

#include <stdarg.h>

int open(const char *file, int flags, ...)

{

        int handle;

        int pos;

        if (flags & O_CREAT)

                handle = RdosCreateFile(file, flags);

        else

                handle = RdosOpenFile(file, flags);

        if (handle >= 0)

        {

                if (flags & O_APPEND)

                {

                        pos = RdosGetFileSize(handle);

                        RdosSetFilePos(handle, pos);

                }

                if (flags & O_TRUNC)

                        RdosSetFileSize(handle, 0);

                return handle;

        }

        else

                return -1;

}