Subversion Repositories openrisc_2011-10-31

/*

 *  mknod()

 *

 *  This routine is not defined in the POSIX 1003.1b standard but is

 *  commonly supported on most UNIX and POSIX systems.  It is the

 *  foundation for creating file system objects.

 *

 *  COPYRIGHT (c) 1989-1999.

 *  On-Line Applications Research Corporation (OAR).

 *

 *  The license and distribution terms for this file may be

 *  found in the file LICENSE in this distribution or at

 *  http://www.OARcorp.com/rtems/license.html.

 *

 *  $Id: mknod.c,v 1.2 2001-09-27 12:01:15 chris Exp $

 */

#include <sys/types.h>

#include <sys/stat.h>

#include <fcntl.h>

#include <unistd.h>

#include <errno.h>

#include <stdlib.h>

#include "libio_.h"

int mknod(

  const char *pathname,

  mode_t      mode,

  dev_t       dev

)

{

  rtems_filesystem_location_info_t    temp_loc;

  int                                 i;

  const char                         *name_start;

  int                                 result;

  if ( !(mode & (S_IFREG|S_IFCHR|S_IFBLK|S_IFIFO) ) )

    set_errno_and_return_minus_one( EINVAL );

  if ( S_ISFIFO(mode) )

    set_errno_and_return_minus_one( ENOTSUP );

  rtems_filesystem_get_start_loc( pathname, &i, &temp_loc );

  result = (*temp_loc.ops->evalformake)(

    &pathname[i],

    &temp_loc,

    &name_start

  );

  if ( result != 0 )

    return -1;

  if ( !temp_loc.ops->mknod ) {

    rtems_filesystem_freenode( &temp_loc );

    set_errno_and_return_minus_one( ENOTSUP );

  }

  result =  (*temp_loc.ops->mknod)( name_start, mode, dev, &temp_loc );

  rtems_filesystem_freenode( &temp_loc );

  return result;

}