modules/kex/km_core.c
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 /**
  * Copyright (C) 2009
  *
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  * This file is part of Kamailio.org, a free SIP server.
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  *
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  * Kamailio is free software; you can redistribute it and/or modify
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  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version
  *
  * Kamailio 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.
  *
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  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
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  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
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  */
 
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
 
 #include "../../dprint.h"
 #include "../../dset.h"
 #include "../../flags.h"
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 #include "../../pvar.h"
 #include "../../lvalue.h"
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 #include "../../mod_fix.h"
 #include "km_core.h"
 
 
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 int w_setdsturi(struct sip_msg *msg, char *uri, str *s2)
 {
 	str s;
 
 	/* todo: fixup */
 	s.s = uri;
 	s.len = strlen(uri);
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 	if(set_dst_uri(msg, &s)!=0)
 		return -1;
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 	/* dst_uri changes, so it makes sense to re-use the current uri for
 		forking */
 	ruri_mark_new(); /* re-use uri for serial forking */
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 	return 1;
 
 }
 
 int w_resetdsturi(struct sip_msg *msg, char *uri, str *s2)
 {
 	if(msg->dst_uri.s!=0)
 		pkg_free(msg->dst_uri.s);
 	msg->dst_uri.s = 0;
 	msg->dst_uri.len = 0;
 	return 1;
 }
 
 int w_isdsturiset(struct sip_msg *msg, char *uri, str *s2)
 {
 	if(msg->dst_uri.s==0 || msg->dst_uri.len<=0)
 		return -1;
 	return 1;
 }
 
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 int pv_printf_fixup(void** param, int param_no)
 {
 	pv_spec_t *spec=NULL;
 	pv_elem_t *pvmodel=NULL;
 	str tstr;
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 	if(param_no==1)
 	{
 		spec = (pv_spec_t*)pkg_malloc(sizeof(pv_spec_t));
 		if(spec==NULL)
 		{
 			LM_ERR("out of pkg\n");
 			return -1;
 		}
 		memset(spec, 0, sizeof(pv_spec_t));
 		tstr.s = (char*)(*param);
 		tstr.len = strlen(tstr.s);
 		if(pv_parse_spec(&tstr, spec)==NULL)
 		{
 			LM_ERR("unknown script variable in first parameter");
 			pkg_free(spec);
 			return -1;
 		}
 		if(!pv_is_w(spec))
 		{
 			LM_ERR("read-only script variable in first parameter");
 			pkg_free(spec);
 			return -1;
 		}
 		*param = spec;
 	} else if(param_no==2) {
 		pvmodel = 0;
 		tstr.s = (char*)(*param);
 		tstr.len = strlen(tstr.s);
 		if(pv_parse_format(&tstr, &pvmodel)<0)
 		{
 			LM_ERR("error in second parameter");
 			return -1;
 		}
 		*param = pvmodel;
 	}
 	return 0;
 }
 
 int w_pv_printf(struct sip_msg *msg, char *s1, str *s2)
 {
 	pv_spec_t *spec=NULL;
 	pv_elem_t *model=NULL;
 	pv_value_t val;
 
 	spec = (pv_spec_t*)s1;
 
 	model = (pv_elem_t*)s2;
 
 	memset(&val, 0, sizeof(pv_value_t));
 	if(pv_printf_s(msg, model, &val.rs)!=0)
 	{
 		LM_ERR("cannot eval second parameter\n");
 		goto error;
 	}
 	val.flags = PV_VAL_STR;
 	if(spec->setf(msg, &spec->pvp, EQ_T, &val)<0)
 	{
 		LM_ERR("setting PV failed\n");
 		goto error;
 	}
 
 	return 1;
 error:
 	return -1;
 }