added string_list

3 files changed, 160 insertions, 0 deletions

diff --git a/src/Makefile b/src/Makefile
index 3a346cf..fff8ee2 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -39,6 +39,7 @@ EXECUTABLE := uanytun
 CRYPT_OBJ := key_derivation.o \
             auth_algo.o
 OBJ := log.o \
+      string_list.o \
       signal.o \
       options.o \
       tun.o \
diff --git a/src/string_list.c b/src/string_list.c
new file mode 100644
index 0000000..fa35789
--- /dev/null
+++ b/src/string_list.c
@@ -0,0 +1,104 @@
+/*
+ *  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 <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;
+
+  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)
+      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)
+      return -2;
+  }
+}
+
+void string_list_print(string_list_t* list)
+{
+  if(!list)
+    return;
+  
+  string_list_element_t* tmp = list->first;
+  while(tmp) {
+    printf("%s\n",tmp->string);
+    tmp = tmp->next;
+  }
+}
diff --git a/src/string_list.h b/src/string_list.h
new file mode 100644
index 0000000..22d3eef
--- /dev/null
+++ b/src/string_list.h
@@ -0,0 +1,55 @@
+/*
+ *  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/>.
+ */
+
+#ifndef _STRING_LIST_H_
+#define _STRING_LIST_H_
+
+struct string_list_element_struct {
+  char* string;
+  struct string_list_element_struct* next;
+};
+typedef struct string_list_element_struct string_list_element_t;
+
+struct string_list_struct {
+  string_list_element_t* first;
+};
+typedef struct string_list_struct string_list_t;
+
+void string_list_init(string_list_t* list);
+void string_list_clear(string_list_t* list);
+int string_list_add(string_list_t* list, const char* string);
+
+void string_list_print(string_list_t* list);
+
+#endif