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/*
* tcpproxy
*
* tcpproxy is a simple tcp connection proxy which combines the
* features of rinetd and 6tunnel. tcpproxy supports IPv4 and
* IPv6 and also supports connections from IPv6 to IPv4
* endpoints and vice versa.
*
*
* Copyright (C) 2010-2011 Christian Pointner <equinox@spreadspace.org>
*
* This file is part of tcpproxy.
*
* tcpproxy 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 3 of the License, or
* any later version.
*
* tcpproxy 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 tcpproxy. 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(tmp->next_);
tmp->next_ = 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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