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/*
* $Id$
*
* Copyright (C) 2006 voice-system.ro
*
* This file is part of Kamailio, a free SIP server.
*
* Kamailio 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 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
/*!
* \file
* \brief Script variables
*/
#include <assert.h>
#include <ctype.h>
#include <string.h>
#include <stdlib.h>
#include "../../dprint.h"
#include "../../mem/mem.h"
#include "pv_svar.h"
static script_var_t *script_vars = 0;
script_var_t* add_var(str *name)
{
script_var_t *it;
if(name==0 || name->s==0 || name->len<=0)
return 0;
for(it=script_vars; it; it=it->next)
{
if(it->name.len==name->len
&& strncmp(name->s, it->name.s, name->len)==0)
return it;
}
it = (script_var_t*)pkg_malloc(sizeof(script_var_t));
if(it==0)
{
LM_ERR("out of pkg mem\n");
return 0;
}
memset(it, 0, sizeof(script_var_t));
it->name.s = (char*)pkg_malloc((name->len+1)*sizeof(char));
if(it->name.s==0)
{
LM_ERR("out of pkg mem!\n");
return 0;
}
it->name.len = name->len;
strncpy(it->name.s, name->s, name->len);
it->name.s[it->name.len] = '\0';
it->next = script_vars;
script_vars = it;
return it;
}
script_var_t* set_var_value(script_var_t* var, int_str *value, int flags)
{
if(var==0)
return 0;
if(value==NULL)
{
if(var->v.flags&VAR_VAL_STR)
{
pkg_free(var->v.value.s.s);
var->v.flags &= ~VAR_VAL_STR;
}
memset(&var->v.value, 0, sizeof(int_str));
return var;
}
if(flags&VAR_VAL_STR)
{
if(var->v.flags&VAR_VAL_STR)
{ /* old and new value is str */
if(value->s.len>var->v.value.s.len)
{ /* not enough space to copy */
pkg_free(var->v.value.s.s);
memset(&var->v.value, 0, sizeof(int_str));
var->v.value.s.s =
(char*)pkg_malloc((value->s.len+1)*sizeof(char));
if(var->v.value.s.s==0)
{
LM_ERR("out of pkg mem\n");
goto error;
}
}
} else {
memset(&var->v.value, 0, sizeof(int_str));
var->v.value.s.s =
(char*)pkg_malloc((value->s.len+1)*sizeof(char));
if(var->v.value.s.s==0)
{
LM_ERR("out of pkg mem!\n");
goto error;
}
var->v.flags |= VAR_VAL_STR;
}
strncpy(var->v.value.s.s, value->s.s, value->s.len);
var->v.value.s.len = value->s.len;
var->v.value.s.s[value->s.len] = '\0';
} else {
if(var->v.flags&VAR_VAL_STR)
{
pkg_free(var->v.value.s.s);
var->v.flags &= ~VAR_VAL_STR;
memset(&var->v.value, 0, sizeof(int_str));
}
var->v.value.n = value->n;
}
return var;
error:
/* set the var to init value */
memset(&var->v.value, 0, sizeof(int_str));
var->v.flags &= ~VAR_VAL_STR;
return NULL;
}
script_var_t* get_var_by_name(str *name)
{
script_var_t *it;
if(name==0 || name->s==0 || name->len<=0)
return 0;
for(it=script_vars; it; it=it->next)
{
if(it->name.len==name->len
&& strncmp(name->s, it->name.s, name->len)==0)
return it;
}
return 0;
}
void reset_vars(void)
{
script_var_t *it;
for(it=script_vars; it; it=it->next)
{
if(it->v.flags&VAR_VAL_STR)
{
pkg_free(it->v.value.s.s);
it->v.flags &= ~VAR_VAL_STR;
}
memset(&it->v.value, 0, sizeof(int_str));
}
}
void destroy_vars_list(script_var_t *svl)
{
script_var_t *it;
script_var_t *it0;
it = svl;
while(it)
{
it0 = it;
it = it->next;
pkg_free(it0->name.s);
if(it0->v.flags&VAR_VAL_STR)
pkg_free(it0->v.value.s.s);
pkg_free(it0);
}
svl = 0;
}
void destroy_vars(void)
{
destroy_vars_list(script_vars);
}
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