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Sourcecode: acl version File versions

acl_free.c

/*
  File: acl_free.c

  Copyright (C) 1999, 2000
  Andreas Gruenbacher <a.gruenbacher@computer.org>

  This program is free software; you can redistribute it and/or
  modify it under the terms of the GNU Library General Public
  License as published by the Free Software Foundation; either
  version 2 of the License, or (at your option) any later version.

  This program 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
  Library General Public License for more details.

  You should have received a copy of the GNU Library 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.
*/

#include "libacl.h"


void
__acl_free_acl_obj(acl_obj *acl_obj_p)
{
      acl_entry_obj *entry_obj_p;
      while (acl_obj_p->anext != (acl_entry_obj *)acl_obj_p) {
            entry_obj_p = acl_obj_p->anext;
            acl_obj_p->anext = acl_obj_p->anext->enext;
            free_obj_p(entry_obj_p);
      }
      free(acl_obj_p->aprealloc);
      free_obj_p(acl_obj_p);
}


/* 23.4.12 */
int
acl_free(void *obj_p)
{
      obj_prefix *int_p = ((obj_prefix *)obj_p)-1;
      if (!obj_p || !int_p) {
            errno = EINVAL;
            return -1;
      }


      switch(int_p->p_magic) {
            case acl_MAGIC:
                  __acl_free_acl_obj((acl_obj *)int_p);
                  return 0;
            case qualifier_MAGIC:
            case string_MAGIC:
                  free_obj_p(int_p);
                  return 0;
            case acl_entry_MAGIC:
            case acl_permset_MAGIC:
#ifdef LIBACL_DEBUG
                  fprintf(stderr, "object (magic=0x%X) "
                          "at %p cannot be freed\n",
                        int_p->p_magic, int_p);
#endif
                  break;
            default:
#ifdef LIBACL_DEBUG
                  fprintf(stderr, "invalid object (magic=0x%X) "
                          "at %p\n", int_p->p_magic, int_p);
#endif
                  break;
      }
      errno = EINVAL;
      return -1;
}


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