/* 

 *  Unix SMB/CIFS implementation.

 *  Virtual Windows Registry Layer (utility functions)

 *  Copyright (C) Gerald Carter                     2002-2005

 *

 *  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 Software Foundation; either version 3 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 General Public License for more details.

 *

 *  You should have received a copy of the GNU General Public License

 *  along with this program; if not, see <http://www.gnu.org/licenses/>.

 */

/* Implementation of registry frontend view functions. */

#include "includes.h"

#include "registry.h"

#include "reg_util_internal.h"

#undef DBGC_CLASS

#define DBGC_CLASS DBGC_REGISTRY

/***********************************************************************

 Utility function for splitting the base path of a registry path off

 by setting base and new_path to the apprapriate offsets within the

 path.

 WARNING!!  Does modify the original string!

 ***********************************************************************/

bool reg_split_path(char *path, char **base, char **new_path)

{

  char *p;

  *new_path = *base = NULL;

  if (!path) {

    return false;

  }

  *base = path;

  p = strchr(path, '\\');

  if ( p ) {

    *p = '\0';

    *new_path = p+1;

  }

  return true;

}

/***********************************************************************

 Utility function for splitting the base path of a registry path off

 by setting base and new_path to the appropriate offsets within the

 path.

 WARNING!!  Does modify the original string!

 ***********************************************************************/

bool reg_split_key(char *path, char **base, char **key)

{

  char *p;

  *key = *base = NULL;

  if (!path) {

    return false;

  }

  *base = path;

  p = strrchr(path, '\\');

  if (p) {

    *p = '\0';

    *key = p+1;

  }

  return true;

}

/**

 * The full path to the registry key is used as database key.

 * Leading and trailing '\' characters are stripped.

 * Key string is also normalized to UPPER case.

 */

char *normalize_reg_path(TALLOC_CTX *ctx, const char *keyname )

{

  char *p;

  char *nkeyname;

  /* skip leading '\' chars */

  while (*keyname == '\\') {

    keyname++;

  }

  nkeyname = talloc_strdup(ctx, keyname);

  if (nkeyname == NULL) {

    return NULL;

  }

  /* strip trailing '\' chars */

  p = strrchr(nkeyname, '\\');

  while ((p != NULL) && (p[1] == '\0')) {

    *p = '\0';

    p = strrchr(nkeyname, '\\');

  }

  if (!strupper_m(nkeyname)) {

    TALLOC_FREE(nkeyname);

    return NULL;

  }

  return nkeyname;

}

/**********************************************************************

 move to next non-delimter character

*********************************************************************/

char *reg_remaining_path(TALLOC_CTX *ctx, const char *key)

{

  char *new_path = NULL;

  char *p = NULL;

  if (!key || !*key) {

    return NULL;

  }

  new_path = talloc_strdup(ctx, key);

  if (!new_path) {

    return NULL;

  }

  /* normalize_reg_path( new_path ); */

  if (!(p = strchr(new_path, '\\')) ) {

    p = new_path;

  } else {

    p++;

  }

  return p;

}