/*

 *  Unix SMB/CIFS implementation.

 *  libsmbconf - Samba configuration library, init dispatcher

 *  Copyright (C) Michael Adam 2008

 *

 *  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/>.

 */

#include "includes.h"

#include "lib/smbconf/smbconf_private.h"

#include "lib/smbconf/smbconf_txt.h"

#include "lib/smbconf/smbconf_reg.h"

#include "lib/smbconf/smbconf_init.h"

/**

 * smbconf initialization dispatcher

 *

 * this takes a configuration source in the form of

 * backend:path and calls the appropriate backend

 * init function with the path argument

 *

 * known backends:

 * -  "registry" or "reg"

 * -  "txt" or "file"

 */

sbcErr smbconf_init(TALLOC_CTX *mem_ctx, struct smbconf_ctx **conf_ctx,

        const char *source)

{

  sbcErr err;

  char *backend = NULL;

  char *path = NULL;

  char *sep;

  TALLOC_CTX *tmp_ctx = talloc_stackframe();

  if (conf_ctx == NULL) {

    err = SBC_ERR_INVALID_PARAM;

    goto done;

  }

  if ((source == NULL) || (*source == '\0')) {

    err = SBC_ERR_INVALID_PARAM;

    goto done;

  }

  backend = talloc_strdup(tmp_ctx, source);

  if (backend == NULL) {

    err = SBC_ERR_NOMEM;

    goto done;

  }

  sep = strchr(backend, ':');

  if (sep != NULL) {

    *sep = '\0';

    path = sep + 1;

    if (strlen(path) == 0) {

      path = NULL;

    }

  }

  if (strequal(backend, "registry") || strequal(backend, "reg")) {

    err = smbconf_init_reg(mem_ctx, conf_ctx, path);

  } else if (strequal(backend, "file") || strequal(backend, "txt")) {

    err = smbconf_init_txt(mem_ctx, conf_ctx, path);

  } else if (sep == NULL) {

    /*

     * If no separator was given in the source, and the string is

     * not a known backend, assume file backend and use the source

     * string as a path argument.

     */

    err = smbconf_init_txt(mem_ctx, conf_ctx, backend);

  } else {

    /*

     * Separator was specified but this is not a known backend.

     * As a last resort, try to interpret the original source

     * string as a file name that contains a ":" sign.

     * This may occur with an include directive like this:

     * 'include = /path/to/file.%T'

     */

    err = smbconf_init_txt(mem_ctx, conf_ctx, source);

  }

done:

  talloc_free(tmp_ctx);

  return err;

}