pv_core.c
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 /* 
  * Copyright (C) 2009 iptelorg GmbH
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
  * copyright notice and this permission notice appear in all copies.
  *
  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
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 /*!
  * \file
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  * \brief Kamailio core ::  pv_core.c - pvars needed in the core, e.g. $?, $retcode
  *
  * \note Note: in general please avoid adding pvars directly to the core, unless
  * absolutely necessary (use/create a new module instead).
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  * \ingroup core
  * Module: \ref core
  */
 
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 #include "pv_core.h"
 #include "pvar.h"
 #include "str.h"
 
 static int pv_get_retcode(struct sip_msg*, pv_param_t*, pv_value_t*);
 
 static pv_export_t core_pvs[] = {
 	/* return code, various synonims */
 	{ STR_STATIC_INIT("?"), PVT_OTHER, pv_get_retcode, 0, 0, 0, 0, 0 },
 	{ STR_STATIC_INIT("rc"), PVT_OTHER, pv_get_retcode, 0, 0, 0, 0, 0 },
 	{ STR_STATIC_INIT("retcode"), PVT_OTHER, pv_get_retcode, 0, 0, 0, 0, 0 },
 	
 	{ {0, 0}, 0, 0, 0, 0, 0, 0, 0 }
 };
 
 
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 /** ugly hack to get the return code, needed because the PVs do not know (yet)
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    about the script context */
 extern int _last_returned_code;
 
 static int pv_get_retcode(struct sip_msg* msg, pv_param_t* p, pv_value_t* res)
 {
 	/* FIXME: as soon as PVs support script context, use it instead of the
 	          return in global variable hack */
 	return pv_get_sintval(msg, p, res, _last_returned_code);
 }
 
 
 
 /** register built-in core pvars.
  * should be called before parsing the config script.
  * @return 0 on success 
  */
 int pv_register_core_vars(void)
 {
 	return register_pvars_mod("core", core_pvs);
 }
 
 /* vi: set ts=4 sw=4 tw=79:ai:cindent: */