text: /*
   * This file is part of the Sofia-SIP package
   *
   * Copyright (C) 2006 Nokia Corporation.
   *
   * Contact: Pekka Pessi <pekka.pessi@nokia.com>
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public License
   * as published by the Free Software Foundation; either version 2.1 of
   * the License, or (at your option) any later version.
   *
   * This library 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
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
   * 02110-1301 USA
   *
   */
  
  /**@CFILE nua_options.c
   * @brief Implementation of OPTIONS client.
   *
   * OPTIONS server is in nua_session.c.
   *
   * @author Pekka Pessi <Pekka.Pessi@nokia.com>
   *
   * @date Created: Wed Mar  8 17:02:19 EET 2006 ppessi
   */
  
  #include "config.h"
  
  #include <stddef.h>
  #include <stdlib.h>
  #include <string.h>
  #include <limits.h>
  
  #include <assert.h>
  
  #include <sofia-sip/su_string.h>
  #include <sofia-sip/sip_protos.h>
  #include <sofia-sip/sip_status.h>
  
  #include "nua_stack.h"
  
  /**@fn void nua_options(nua_handle_t *nh, tag_type_t tag, tag_value_t value, ...);
   *
   * Query capabilities from server with OPTIONS request.
   *
   * @param nh              Pointer to operation handle
   * @param tag, value, ... List of tagged parameters
   *
   * @return
   *    nothing
   *
   * @par Related Tags:
   *    Header tags defined in <sofia-sip/sip_tag.h>
   *
   * @par Events:
   *    #nua_r_options
   *
   * @sa #nua_i_options, @RFC3261 section 10
   */
  
  /** @NUA_EVENT nua_r_options
   *
   * Answer to outgoing OPTIONS.
   *
   * @param status response status code
   *               (if the request is retried the @a status is 100 and the @a
   *               sip->sip_status->st_status contain the real status code
   *               from the response message, e.g., 302, 401, or 407)
   * @param phrase a short textual description of @a status code
   * @param nh     operation handle associated with the incoming OPTIONS request
   * @param hmagic application context associated with the handle
   * @param sip    response to OPTIONS request or NULL upon an error
   *               (status code is in @a status and
   *                descriptive message in @a phrase parameters)
   * @param tags   empty
   *
   * @sa nua_options(), @RFC3261 section 11, #nua_i_options
   *
   * @END_NUA_EVENT
   */
  
  static nua_client_methods_t const nua_options_client_methods = {
    SIP_METHOD_OPTIONS,		/* crm_method, crm_method_name */
    0,				/* crm_extra */
    {				/* crm_flags */
      /* create_dialog */ 0,
      /* in_dialog */ 0,
      /* target refresh */ 0
    },
    NULL,				/* crm_template */
    NULL,				/* crm_init */
    NULL,				/* crm_send */
    NULL,				/* crm_check_restart */
    NULL,				/* crm_recv */
    NULL,				/* crm_preliminary */
    NULL,				/* crm_report */
    NULL,				/* crm_complete */
  };
  
  int nua_stack_options(nua_t *nua,
  		      nua_handle_t *nh,
  		      nua_event_t e,
  		      tagi_t const *tags)
  {
    return nua_client_create(nh, e, &nua_options_client_methods, tags);
  }
  