chanvars.c

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/*
 * Asterisk -- A telephony toolkit for Linux.
 *
 * Channel Variables
 * 
 * Copyright (C) 2002, Mark Spencer
 *
 * Mark Spencer <markster@linux-support.net>
 *
 * This program is free software, distributed under the terms of
 * the GNU General Public License
 */

#include <stdlib.h>
#include <string.h>

#include <asterisk/chanvars.h>
#include <asterisk/logger.h>

struct ast_var_t *ast_var_assign(char *name, char *value)
{
   int i;
   struct ast_var_t *var;
   
   var = malloc(sizeof(struct ast_var_t));

   if (var == NULL)
   {
      ast_log(LOG_WARNING, "Out of memory\n");
      return NULL;
   }
   
   i = strlen(value);
   var->value = malloc(i + 1);
   if (var->value == NULL)
   {
      ast_log(LOG_WARNING, "Out of memory\n");
      free(var);
      return NULL;
   }

   strncpy(var->value, value, i);
   var->value[i] = '\0';
   
   i = strlen(name);
   var->name = malloc(i + 1);
   if (var->name == NULL)
   {
      ast_log(LOG_WARNING, "Out of memory\n");
      free(var->value);
      free(var);
      return NULL;
   }

   strncpy(var->name, name, i); 
   var->name[i] = '\0';

   return var;
}  
   
void ast_var_delete(struct ast_var_t *var)
{
   if (var == NULL) return;

   if (var->name != NULL) free(var->name);
   if (var->value != NULL) free(var->value);

   free(var);
}

char *ast_var_name(struct ast_var_t *var)
{
   return (var != NULL ? var->name : NULL);
}

char *ast_var_value(struct ast_var_t *var)
{
   return (var != NULL ? var->value : NULL);
}

   

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