1 files changed, 693 insertions, 0 deletions

diff --git a/src/chat/test_chat_private.c b/src/chat/test_chat_private.c
new file mode 100644
index 000000000..7649bffe4
--- /dev/null
+++ b/src/chat/test_chat_private.c
@@ -0,0 +1,693 @@
+/*
+     This file is part of GNUnet.
+     (C) 2011 Christian Grothoff (and other contributing authors)
+
+     GNUnet 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, or (at your
+     option) any later version.
+
+     GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
+     Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+     Boston, MA 02111-1307, USA.
+*/
+
+/**
+ * @file chat/test_chat_private.c
+ * @brief testcase for private chatting
+ * @author Vitaly Minko
+ */
+
+#include "platform.h"
+#include "gnunet_crypto_lib.h"
+#include "gnunet_util_lib.h"
+#include "gnunet_arm_service.h"
+#include "gnunet_chat_service.h"
+
+#define VERBOSE GNUNET_NO
+
+#define START_ARM GNUNET_YES
+
+/**
+ * How long until we give up on passing the test?
+ */
+#define KILL_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 60)
+
+/**
+ * How long until we give up on receiving somebody else's private message?
+ */
+#define PM_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 5)
+
+struct PeerContext
+{
+  struct GNUNET_CONFIGURATION_Handle *cfg;
+#if START_ARM
+  struct GNUNET_OS_Process *arm_proc;
+#endif
+};
+
+struct Wanted
+{
+  struct GNUNET_CONTAINER_MetaData *meta;
+
+  GNUNET_HashCode *sender;
+
+  /**
+   * Alternative meta/sender is used when we expect join/leave notification
+   * from two peers and don't know which one will come first.
+   */
+  struct GNUNET_CONTAINER_MetaData *meta2;
+
+  GNUNET_HashCode *sender2;
+
+  char *msg;
+
+  const char *me;
+
+  enum GNUNET_CHAT_MsgOptions opt;
+
+  struct GNUNET_TIME_Absolute timestamp;
+
+  GNUNET_SCHEDULER_Task next_task;
+
+  void *next_task_cls;
+
+};
+
+static struct PeerContext p1;
+
+static struct PeerContext p2;
+
+static struct PeerContext p3;
+
+static GNUNET_HashCode alice;
+
+static GNUNET_HashCode bob;
+
+static GNUNET_HashCode carol;
+
+static struct GNUNET_CHAT_Room *alice_room;
+
+static struct GNUNET_CHAT_Room *bob_room;
+
+static struct GNUNET_CHAT_Room *carol_room;
+
+static struct GNUNET_CONTAINER_MetaData *alice_meta;
+
+static struct GNUNET_CONTAINER_MetaData *bob_meta;
+
+static struct GNUNET_CONTAINER_MetaData *carol_meta;
+
+static struct Wanted alice_wanted;
+
+static struct Wanted bob_wanted;
+
+static struct Wanted carol_wanted;
+
+static GNUNET_SCHEDULER_TaskIdentifier kill_task;
+
+static GNUNET_SCHEDULER_TaskIdentifier finish_task;
+
+static GNUNET_SCHEDULER_TaskIdentifier wait_task;
+
+static int err;
+
+static int alice_ready;
+
+static int bob_ready;
+
+static int is_p2p;
+
+struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *bob_public_key = NULL;
+
+
+static void
+setup_peer (struct PeerContext *p, const char *cfgname)
+{
+  p->cfg = GNUNET_CONFIGURATION_create ();
+#if START_ARM
+  p->arm_proc = GNUNET_OS_start_process (NULL, NULL, "gnunet-service-arm",
+                                        "gnunet-service-arm",
+#if VERBOSE
+                                        "-L", "DEBUG",
+#endif
+                                        "-c", cfgname, NULL);
+#endif
+  GNUNET_assert (GNUNET_OK == GNUNET_CONFIGURATION_load (p->cfg, cfgname));
+}
+
+
+static void
+stop_arm (struct PeerContext *p)
+{
+#if START_ARM
+  if (0 != GNUNET_OS_process_kill (p->arm_proc, SIGTERM))
+    GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "kill");
+  if (GNUNET_OS_process_wait(p->arm_proc) != GNUNET_OK)
+    GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "waitpid");
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "ARM process %u stopped\n", GNUNET_OS_process_get_pid (p->arm_proc));
+  GNUNET_OS_process_close (p->arm_proc);
+  p->arm_proc = NULL;
+#endif
+  GNUNET_CONFIGURATION_destroy (p->cfg);
+}
+
+
+static void
+abort_test (void *cls,
+            const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  if (alice_room != NULL)
+    {
+      GNUNET_CHAT_leave_room (alice_room);
+      alice_room = NULL;
+    }
+  if (bob_room != NULL)
+    {
+      GNUNET_CHAT_leave_room (bob_room);
+      bob_room = NULL;
+    }
+  if (carol_room != NULL)
+    {
+      GNUNET_CHAT_leave_room (carol_room);
+      carol_room = NULL;
+    }
+  err = 1;
+}
+
+
+static void
+timeout_kill (void *cls,
+              const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+#if VERBOSE
+  printf ("Timed out, stopping the test.\n");
+#endif
+  kill_task = GNUNET_SCHEDULER_NO_TASK;
+  if (wait_task != GNUNET_SCHEDULER_NO_TASK)
+    {
+      GNUNET_SCHEDULER_cancel (wait_task);
+      wait_task = GNUNET_SCHEDULER_NO_TASK;
+    }
+  GNUNET_SCHEDULER_add_continuation (&abort_test, NULL,
+                                     GNUNET_SCHEDULER_REASON_PREREQ_DONE);
+}
+
+
+static int
+join_cb (void *cls)
+{
+  struct Wanted *want = cls;
+
+#if VERBOSE
+  printf ("%s has joined\n", want->me);
+#endif
+  if (NULL != want->next_task)
+    GNUNET_SCHEDULER_add_now (want->next_task, want->next_task_cls);
+  return GNUNET_OK;
+}
+
+
+static int
+member_list_cb (void *cls,
+                const struct GNUNET_CONTAINER_MetaData *member_info,
+                const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *member_id,
+                enum GNUNET_CHAT_MsgOptions options)
+{
+  struct Wanted *want = cls;
+  GNUNET_HashCode sender;
+
+#if VERBOSE
+  printf ("%s - told that %s has %s\n",
+           want->me,
+           member_info == NULL ? NULL
+           : GNUNET_CONTAINER_meta_data_get_by_type (member_info,
+                                                     EXTRACTOR_METATYPE_TITLE),
+           member_info == NULL ? "left" : "joined");
+#endif
+  GNUNET_CRYPTO_hash (member_id,
+                      sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded),
+                      &sender);
+  /* entertain both primary and an alternative sender/meta */
+  if (((0 == memcmp (&sender, want->sender, sizeof (GNUNET_HashCode))) ||
+       ((want->sender2 != NULL) &&
+        (0 == memcmp (&sender, want->sender2, sizeof (GNUNET_HashCode))))) &&
+      (((member_info == NULL) && (want->meta == NULL)) ||
+       ((member_info != NULL) &&
+        (((want->meta != NULL) &&
+          GNUNET_CONTAINER_meta_data_test_equal (member_info,
+                                                 want->meta)) ||
+         ((want->meta2 != NULL) &&
+          GNUNET_CONTAINER_meta_data_test_equal (member_info,
+                                                 want->meta2))))) &&
+      (options == want->opt))
+    {
+      /* remember Bob's public key, we need it to send private message */
+      if (NULL == bob_public_key &&
+          (0 == memcmp (&bob, want->sender, sizeof (GNUNET_HashCode))))
+        bob_public_key =
+          GNUNET_memdup (member_id,
+                         sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded));
+      if (want->sender2 != NULL)
+        {
+          /* flush alternative sender */
+          if (0 == memcmp (&sender, want->sender, sizeof (GNUNET_HashCode)))
+            {
+              want->sender = want->sender2;
+              want->meta = want->meta2;
+            }
+          want->sender2 = NULL;
+          want->meta2 = NULL;
+        }
+      else
+        if (NULL != want->next_task)
+          GNUNET_SCHEDULER_add_now (want->next_task, want->next_task_cls);
+    }
+  else
+    {
+      GNUNET_SCHEDULER_cancel (kill_task);
+      kill_task = GNUNET_SCHEDULER_NO_TASK;
+      GNUNET_SCHEDULER_add_now (&abort_test, NULL);
+    }
+  return GNUNET_OK;
+}
+
+
+static int
+receive_cb (void *cls,
+            struct GNUNET_CHAT_Room *room,
+            const GNUNET_HashCode *sender,
+            const struct GNUNET_CONTAINER_MetaData *meta,
+            const char *message,
+            struct GNUNET_TIME_Absolute timestamp,
+            enum GNUNET_CHAT_MsgOptions options)
+{
+  struct Wanted *want = cls;
+
+#if VERBOSE
+  printf ("%s - told that %s said '%s'\n",
+          want->me,
+          meta == NULL ? NULL
+          : GNUNET_CONTAINER_meta_data_get_by_type (meta,
+                                                    EXTRACTOR_METATYPE_TITLE),
+          message);
+#endif
+
+  if ((want->msg != NULL) && (0 == strcmp (message, want->msg)) &&
+      (((sender == NULL) && (want->sender == NULL)) ||
+       ((sender != NULL) && (want->sender != NULL) &&
+        (0 == memcmp (sender, want->sender,
+                      sizeof (GNUNET_HashCode))))) &&
+      (GNUNET_CONTAINER_meta_data_test_equal (meta, want->meta)) &&
+      (options == want->opt) &&
+      /* Not == since the library sets the actual timestamp, so it may be
+       * slightly greater
+       */
+      (timestamp.abs_value >= want->timestamp.abs_value))
+    {
+      if (NULL != want->next_task)
+        GNUNET_SCHEDULER_add_now (want->next_task, want->next_task_cls);
+    }
+  else
+    {
+      GNUNET_SCHEDULER_cancel (kill_task);
+      kill_task = GNUNET_SCHEDULER_NO_TASK;
+      GNUNET_SCHEDULER_cancel (finish_task);
+      finish_task = GNUNET_SCHEDULER_NO_TASK;
+      GNUNET_SCHEDULER_add_now (&abort_test, NULL);
+    }
+  return GNUNET_OK;
+}
+
+
+static void
+wait_until_all_ready (void *cls,
+                      const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  GNUNET_SCHEDULER_Task task = cls;
+
+#if VERBOSE
+  printf ("Waiting...\n");
+#endif
+  if (alice_ready && bob_ready)
+    {
+      wait_task = GNUNET_SCHEDULER_NO_TASK;
+      GNUNET_SCHEDULER_add_now (task, NULL);
+    }
+  else
+    wait_task =
+      GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS,
+                                                                   5000),
+                                    &wait_until_all_ready,
+                                    task);
+}
+
+
+static void
+set_alice_ready (void *cls,
+           const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  alice_ready = GNUNET_YES;
+}
+
+
+static void
+set_bob_ready (void *cls,
+           const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  bob_ready = GNUNET_YES;
+}
+
+
+static void
+disconnect_alice (void *cls,
+                  const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+#if VERBOSE
+  printf ("Alice is leaving.\n");
+#endif
+  if (is_p2p)
+    stop_arm (&p2);
+  GNUNET_CHAT_leave_room (alice_room);
+  alice_room = NULL;
+  GNUNET_SCHEDULER_cancel (kill_task);
+  kill_task = GNUNET_SCHEDULER_NO_TASK;
+}
+
+
+static void
+disconnect_bob (void *cls,
+                const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+#if VERBOSE
+  printf ("Bod is leaving.\n");
+#endif
+  if (is_p2p)
+    stop_arm (&p3);
+  alice_wanted.meta = NULL;
+  alice_wanted.sender = &bob;
+  alice_wanted.msg = NULL;
+  alice_wanted.opt = 0;
+  alice_wanted.next_task = &disconnect_alice;
+  alice_wanted.next_task_cls = NULL;
+  GNUNET_CHAT_leave_room (bob_room);
+  bob_room = NULL;
+}
+
+
+static void
+disconnect_carol (void *cls,
+                  const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+#if VERBOSE
+  printf ("Carol is leaving.\n");
+#endif
+  alice_wanted.meta = NULL;
+  alice_wanted.sender = &carol;
+  alice_wanted.msg = NULL;
+  alice_wanted.opt = 0;
+  alice_wanted.next_task = &set_alice_ready;
+  alice_wanted.next_task_cls = NULL;
+  alice_ready = GNUNET_NO;
+  bob_wanted.meta = NULL;
+  bob_wanted.sender = &carol;
+  bob_wanted.msg = NULL;
+  bob_wanted.opt = 0;
+  bob_wanted.next_task = &wait_until_all_ready;
+  bob_wanted.next_task_cls = &disconnect_bob;
+  bob_ready = GNUNET_YES;
+  GNUNET_CHAT_leave_room (carol_room);
+  carol_room = NULL;
+}
+
+
+static void
+send_from_alice_to_bob (void *cls,
+                        const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  uint32_t seq;
+
+#if VERBOSE
+  printf ("Alice says 'Hi!' to Bob\n");
+#endif
+  alice_ready = GNUNET_YES;
+  bob_ready = GNUNET_NO;
+  bob_wanted.meta = alice_meta;
+  bob_wanted.sender = &alice;
+  bob_wanted.msg = "Hi Bob!";
+  bob_wanted.opt = GNUNET_CHAT_MSG_PRIVATE;
+  bob_wanted.next_task = &set_bob_ready;
+  bob_wanted.next_task_cls = NULL;
+  /* Carol should not receive this message */
+  carol_wanted.meta = NULL;
+  carol_wanted.sender = NULL;
+  carol_wanted.msg = NULL;
+  carol_wanted.opt = 0;
+  carol_wanted.next_task = NULL;
+  carol_wanted.next_task_cls = NULL;
+  GNUNET_CHAT_send_message (alice_room,
+                            "Hi Bob!",
+                            GNUNET_CHAT_MSG_PRIVATE,
+                            bob_public_key, &seq);
+  finish_task = GNUNET_SCHEDULER_add_delayed (PM_TIMEOUT,
+                                              &wait_until_all_ready,
+                                              &disconnect_carol);
+}
+
+
+static void
+prepare_bob_for_alice_task (void *cls,
+                            const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  bob_wanted.meta = alice_meta;
+  bob_wanted.sender = &alice;
+  bob_wanted.msg = NULL;
+  bob_wanted.opt = -1;
+  bob_wanted.next_task = &set_bob_ready;
+  bob_wanted.next_task_cls = NULL;
+}
+
+
+static void
+prepare_carol_for_alice_and_bob_task (void *cls,
+                                      const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  carol_wanted.meta = alice_meta;
+  carol_wanted.sender = &alice;
+  /* set alternative meta/sender since we don't know from which peer
+     notification will come first */
+  carol_wanted.meta2 = bob_meta;
+  carol_wanted.sender2 = &bob;
+  carol_wanted.msg = NULL;
+  carol_wanted.opt = -1;
+  carol_wanted.next_task = &wait_until_all_ready;
+  carol_wanted.next_task_cls = &send_from_alice_to_bob;
+}
+
+
+static void
+join_carol_task (void *cls,
+                 const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+#if VERBOSE
+  printf ("Carol joining\n");
+#endif
+  alice_wanted.meta = carol_meta;
+  alice_wanted.sender = &carol;
+  alice_wanted.msg = NULL;
+  alice_wanted.opt = -1;
+  alice_wanted.next_task = &set_alice_ready;
+  alice_wanted.next_task_cls = NULL;
+  alice_ready = GNUNET_NO;
+  bob_wanted.meta = carol_meta;
+  bob_wanted.sender = &carol;
+  bob_wanted.msg = NULL;
+  bob_wanted.opt = -1;
+  bob_wanted.next_task = &set_bob_ready;
+  bob_wanted.next_task_cls = NULL;
+  bob_ready = GNUNET_NO;
+  carol_wanted.next_task = &prepare_carol_for_alice_and_bob_task;
+  carol_wanted.next_task_cls = NULL;
+  carol_room =
+    GNUNET_CHAT_join_room (is_p2p ? p3.cfg : p1.cfg, "carol", carol_meta,
+                           "test", -1,
+                           &join_cb, &carol_wanted,
+                           &receive_cb, &carol_wanted,
+                           &member_list_cb, &carol_wanted,
+                           NULL, NULL, &carol);
+  if (NULL == carol_room)
+    {
+      GNUNET_SCHEDULER_cancel (kill_task);
+      kill_task = GNUNET_SCHEDULER_NO_TASK;
+      GNUNET_CHAT_leave_room (alice_room);
+      alice_room = NULL;
+      GNUNET_CHAT_leave_room (bob_room);
+      bob_room = NULL;
+      err = 1;
+    }
+}
+
+
+static void
+join_bob_task (void *cls,
+               const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+#if VERBOSE
+  printf ("Bob joining\n");
+#endif
+  alice_wanted.meta = bob_meta;
+  alice_wanted.sender = &bob;
+  alice_wanted.msg = NULL;
+  alice_wanted.opt = -1;
+  alice_wanted.next_task = &wait_until_all_ready;
+  alice_wanted.next_task_cls = &join_carol_task;
+  alice_ready = GNUNET_YES;
+  bob_wanted.next_task = &prepare_bob_for_alice_task;
+  bob_wanted.next_task_cls = NULL;
+  bob_ready = GNUNET_NO;
+  bob_room =
+    GNUNET_CHAT_join_room (is_p2p ? p2.cfg : p1.cfg, "bob", bob_meta,
+                           "test", -1,
+                           &join_cb, &bob_wanted,
+                           &receive_cb, &bob_wanted,
+                           &member_list_cb, &bob_wanted,
+                           NULL, NULL, &bob);
+  if (NULL == bob_room)
+    {
+      GNUNET_SCHEDULER_cancel (kill_task);
+      kill_task = GNUNET_SCHEDULER_NO_TASK;
+      GNUNET_CHAT_leave_room (alice_room);
+      alice_room = NULL;
+      err = 1;
+    }
+}
+
+
+static void
+join_alice_task (void *cls,
+                 const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+#if VERBOSE
+  printf ("Alice joining\n");
+#endif
+  alice_wanted.next_task = &join_bob_task;
+  alice_wanted.next_task_cls = NULL;
+  alice_room =
+    GNUNET_CHAT_join_room (p1.cfg, "alice", alice_meta,
+                           "test", -1,
+                           &join_cb, &alice_wanted,
+                           &receive_cb, &alice_wanted,
+                           &member_list_cb, &alice_wanted,
+                           NULL, NULL, &alice);
+  if (NULL == alice_room)
+    {
+      GNUNET_SCHEDULER_cancel (kill_task);
+      kill_task = GNUNET_SCHEDULER_NO_TASK;
+      err = 1;
+    }
+}
+
+
+static void
+run (void *cls,
+     char *const *args,
+     const char *cfgfile,
+     const struct GNUNET_CONFIGURATION_Handle *cfg)
+{
+  if (is_p2p)
+    {
+      setup_peer (&p1, "test_chat_peer1.conf");
+      setup_peer (&p2, "test_chat_peer2.conf");
+      setup_peer (&p3, "test_chat_peer3.conf");
+    }
+  else
+    setup_peer (&p1, "test_chat_data.conf");
+
+  memset (&alice_wanted, 0, sizeof (struct Wanted));
+  memset (&bob_wanted, 0, sizeof (struct Wanted));
+  memset (&carol_wanted, 0, sizeof (struct Wanted));
+  alice_wanted.me = "Alice";
+  bob_wanted.me = "Bob";
+  carol_wanted.me = "Carol";
+  alice_meta = GNUNET_CONTAINER_meta_data_create ();
+  GNUNET_CONTAINER_meta_data_insert (alice_meta,
+                                     "<gnunet>",
+                                     EXTRACTOR_METATYPE_TITLE,
+                                     EXTRACTOR_METAFORMAT_UTF8,
+                                     "text/plain",
+                                     "Alice",
+                                     strlen("Alice")+1);
+  bob_meta = GNUNET_CONTAINER_meta_data_create ();
+  GNUNET_CONTAINER_meta_data_insert (bob_meta,
+                                     "<gnunet>",
+                                     EXTRACTOR_METATYPE_TITLE,
+                                     EXTRACTOR_METAFORMAT_UTF8,
+                                     "text/plain",
+                                     "Bob",
+                                     strlen("Bob")+1);
+  carol_meta = GNUNET_CONTAINER_meta_data_create ();
+  GNUNET_CONTAINER_meta_data_insert (carol_meta,
+                                     "<gnunet>",
+                                     EXTRACTOR_METATYPE_TITLE,
+                                     EXTRACTOR_METAFORMAT_UTF8,
+                                     "text/plain",
+                                     "Carol",
+                                     strlen("Carol")+1);
+  kill_task = GNUNET_SCHEDULER_add_delayed (KILL_TIMEOUT, &timeout_kill, NULL);
+  GNUNET_SCHEDULER_add_now (&join_alice_task, NULL);
+}
+
+
+int
+main (int argc, char *argv[])
+{
+  char *const argvx[] = { 
+    "test-chat",
+    "-c",
+    "test_chat_data.conf",
+#if VERBOSE
+    "-L", "DEBUG",
+#endif
+    NULL
+  };
+  struct GNUNET_GETOPT_CommandLineOption options[] = {
+    GNUNET_GETOPT_OPTION_END
+  };
+
+  GNUNET_log_setup ("test_chat", 
+#if VERBOSE
+                    "DEBUG",
+#else
+                    "WARNING",
+#endif
+                    NULL);
+  if (strstr(argv[0], "p2p") != NULL)
+    {
+      is_p2p = GNUNET_YES;
+    }
+  GNUNET_PROGRAM_run ((sizeof (argvx) / sizeof (char *)) - 1,
+                      argvx, "test-chat",
+                      "nohelp", options, &run, NULL);
+  stop_arm (&p1);
+  GNUNET_CONTAINER_meta_data_destroy (alice_meta);
+  GNUNET_CONTAINER_meta_data_destroy (bob_meta);
+  GNUNET_CONTAINER_meta_data_destroy (carol_meta);
+  if (is_p2p)
+    {
+      GNUNET_DISK_directory_remove ("/tmp/gnunet-test-chat-peer-1/");
+      GNUNET_DISK_directory_remove ("/tmp/gnunet-test-chat-peer-2/");
+      GNUNET_DISK_directory_remove ("/tmp/gnunet-test-chat-peer-3/");
+    }
+  else
+    GNUNET_DISK_directory_remove ("/tmp/gnunet-test-chat/");
+  return err;
+}
+
+/* end of test_chat_private.c */