/*
 * fiked - a fake IKE PSK+XAUTH daemon based on vpnc
 * Copyright (C) 2005, Daniel Roethlisberger <daniel@roe.ch>
 * 
 * This program 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.
 * 
 * This program 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, see http://www.gnu.org/copyleft/
 * 
 * $Id: config.c 103 2005-12-18 16:28:08Z roe $
 */

#include "config.h"
#include "mem.h"
#include <stdlib.h>
#include <string.h>

/* psk */

char * psk_get_key(char *id, psk *head)
{
	char *key = NULL;
	for(psk *p = head; p && !key; p = p->next) {
		if(!strcmp(p->id, id) || !p->next)
			key = p->key;
	}

	return key;
}

void psk_set_key(char *id, char *key, psk **head)
{
	psk *found = NULL;
	for(psk *p = *head; p && !found; p = p->next) {
		if(p->id == id)
			found = p;
	}

	if(!found) {
		mem_allocate(&found, sizeof(psk));
		memset(found, 0, sizeof(psk));
		found->id = strdup(id);
		found->next = *head;
		*head = found;
	}

	found->key = strdup(key);
}

void psk_free(psk *keys)
{
	mem_free(&keys->next);
	mem_free(&keys->id);
	mem_free(&keys->key);
	free(keys);
}


/* config */

config * config_new()
{
	config *cfg = NULL;
	mem_allocate(&cfg, sizeof(config));
	memset(cfg, 0, sizeof(config));
	return cfg;
}

void config_free(config *cfg)
{
	if(cfg->us) {
		udp_socket_free(cfg->us);
		cfg->us = NULL;
	}

	mem_free(&cfg->gateway);

	if(cfg->keys) {
		psk_free(cfg->keys);
		cfg->keys = NULL;
	}

	free(cfg);
}