1 files changed, 105 insertions, 0 deletions
diff --git a/src/string_list.c b/src/string_list.c
new file mode 100644
index 0000000..3c7316d
--- /dev/null
+++ b/src/string_list.c
@@ -0,0 +1,105 @@
+/*
+ *  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_;
+  }
+}