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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 as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * any later version.
+ *
+ * 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_;
+ }
+}