Subversion Repositories openrisc_2011-10-31

/*

 *  IMFS_chown

 *

 *  This routine is the implementation of the chown() system

 *  call for the IMFS.

 *

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

 */

#include <errno.h>

#include "libio_.h"

#include "imfs.h"

int IMFS_chown(

  rtems_filesystem_location_info_t  *pathloc,       /* IN */

  uid_t                              owner,         /* IN */

  gid_t                              group          /* IN */

)

{

  IMFS_jnode_t  *jnode;

#if defined(RTEMS_POSIX_API)

  uid_t          st_uid;

#endif

  jnode = (IMFS_jnode_t *) pathloc->node_access;

  /*

   *  Verify I am the owner of the node or the super user.

   */

#if defined(RTEMS_POSIX_API)

  st_uid = geteuid();

  if ( ( st_uid != jnode->st_uid ) && ( st_uid != 0 ) )

    set_errno_and_return_minus_one( EPERM );

#endif

  jnode->st_uid = owner;

  jnode->st_gid = group;

  IMFS_update_ctime( jnode );

  return 0;

}