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/*
* uAnytun
*
* uAnytun is a tiny implementation of SATP. Unlike Anytun which is a full
* featured implementation uAnytun has no support for multiple connections
* or synchronisation. It is a small single threaded implementation intended
* to act as a client on small platforms.
* The secure anycast tunneling protocol (satp) defines a protocol used
* for communication between any combination of unicast and anycast
* tunnel endpoints. It has less protocol overhead than IPSec in Tunnel
* mode and allows tunneling of every ETHER TYPE protocol (e.g.
* ethernet, ip, arp ...). satp directly includes cryptography and
* message authentication based on the methodes used by SRTP. It is
* intended to deliver a generic, scaleable and secure solution for
* tunneling and relaying of packets of any protocol.
*
*
* Copyright (C) 2007-2008 Christian Pointner <equinox@anytun.org>
*
* This file is part of uAnytun.
*
* uAnytun is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* uAnytun 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 uAnytun. If not, see <http://www.gnu.org/licenses/>.
*/
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include "string_list.h"
void string_list_init(string_list_t* list)
{
if(!list)
return;
list->first_ = NULL;
}
void string_list_clear(string_list_t* list)
{
if(!list)
return;
while(list->first_) {
string_list_element_t* tmp;
tmp = list->first_;
list->first_ = tmp->next_;
if(tmp->string_)
free(tmp->string_);
free(tmp);
}
}
int string_list_add(string_list_t* list, const char* string)
{
if(!list)
return -1;
if(!list->first_) {
list->first_ = malloc(sizeof(string_list_element_t));
if(!list->first_)
return -2;
list->first_->next_ = 0;
list->first_->string_ = strdup(string);
if(!list->first_->string_) {
free(list->first_);
list->first_ = NULL;
return -2;
}
}
else {
string_list_element_t* tmp = list->first_;
while(tmp->next_)
tmp = tmp->next_;
tmp->next_ = malloc(sizeof(string_list_element_t));
if(!tmp->next_)
return -2;
tmp->next_->next_ = 0;
tmp->next_->string_ = strdup(string);
if(!tmp->next_->string_) {
free(list->first_);
list->first_ = NULL;
return -2;
}
}
return 0;
}
void string_list_print(string_list_t* list, const char* head, const char* tail)
{
if(!list)
return;
string_list_element_t* tmp = list->first_;
while(tmp) {
printf("%s%s%s", head, tmp->string_, tail);
tmp = tmp->next_;
}
}
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