[GNUnet-SVN] r18308 - gnunet/src/transport

[gnunet]

Author: grothoff
Date: 2011-11-25 09:55:19 +0100 (Fri, 25 Nov 2011)
New Revision: 18308

Added:
   gnunet/src/transport/gnunet-transport-wlan-helper-dummy.c
Removed:
   gnunet/src/transport/test_plugin_transport_wlan_dummy.c
Modified:
   gnunet/src/transport/Makefile.am
   gnunet/src/transport/plugin_transport_wlan.c
Log:
-minor code clean up and renaming dummy

Modified: gnunet/src/transport/Makefile.am
===================================================================
--- gnunet/src/transport/Makefile.am    2011-11-24 16:25:55 UTC (rev 18307)
+++ gnunet/src/transport/Makefile.am    2011-11-25 08:55:19 UTC (rev 18308)
@@ -123,7 +123,7 @@
 gnunet_transport_wlan_helper_dummy_SOURCES = \
  wlan/radiotap-parser.c \
  wlan/helper_common.c \
- test_plugin_transport_wlan_dummy.c
+ gnunet-transport-wlan-helper-dummy.c
 gnunet_transport_wlan_helper_dummy_LDADD = \
   $(top_builddir)/src/util/libgnunetutil.la 
 

Copied: gnunet/src/transport/gnunet-transport-wlan-helper-dummy.c (from rev 
18301, gnunet/src/transport/test_plugin_transport_wlan_dummy.c)
===================================================================
--- gnunet/src/transport/gnunet-transport-wlan-helper-dummy.c                   
        (rev 0)
+++ gnunet/src/transport/gnunet-transport-wlan-helper-dummy.c   2011-11-25 
08:55:19 UTC (rev 18308)
@@ -0,0 +1,465 @@
+/*
+ This file is part of GNUnet.
+ (C) 2010 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 transport/test_transport_wlan_dummy.c
+ * @brief helper for the testcases for plugin_transport_wlan.c
+ * @author David Brodski
+ */
+
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/time.h>
+#include <sys/stat.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <errno.h>
+#include <resolv.h>
+#include <string.h>
+#include <utime.h>
+#include <unistd.h>
+#include <getopt.h>
+
+#include "platform.h"
+#include "gnunet_constants.h"
+#include "gnunet_os_lib.h"
+#include "gnunet_transport_plugin.h"
+#include "transport.h"
+#include "gnunet_util_lib.h"
+#include "plugin_transport_wlan.h"
+#include "gnunet_common.h"
+//#include "gnunet-transport-wlan-helper.h"
+#include "gnunet_crypto_lib.h"
+#include "wlan/loopback_helper.h"
+#include "wlan/helper_common.h"
+
+static int first;
+
+static void
+sigfunc (int sig)
+{
+  closeprog = 1;
+  (void) unlink (FIFO_FILE1);
+  (void) unlink (FIFO_FILE2);
+}
+
+static void
+stdin_send (void *cls, void *client, const struct GNUNET_MessageHeader *hdr)
+{
+  struct sendbuf *write_pout = cls;
+  int sendsize;
+  struct GNUNET_MessageHeader newheader;
+  char *to_data;
+  char *to_radiotap;
+  char *to_start;
+
+  sendsize =
+      ntohs (hdr->size) - sizeof (struct Radiotap_Send) +
+      sizeof (struct Radiotap_rx);
+
+  if (GNUNET_MESSAGE_TYPE_WLAN_HELPER_DATA != ntohs (hdr->type))
+  {
+    fprintf (stderr, "Function stdin_send: wrong packet type\n");
+    exit (1);
+  }
+  if ((sendsize + write_pout->size) > MAXLINE * 2)
+  {
+    fprintf (stderr, "Function stdin_send: Packet too big for buffer\n");
+    exit (1);
+  }
+
+  newheader.size = htons (sendsize);
+  newheader.type = htons (GNUNET_MESSAGE_TYPE_WLAN_HELPER_DATA);
+
+  to_start = write_pout->buf + write_pout->size;
+  memcpy (to_start, &newheader, sizeof (struct GNUNET_MessageHeader));
+  write_pout->size += sizeof (struct GNUNET_MessageHeader);
+
+  to_radiotap = to_start + sizeof (struct GNUNET_MessageHeader);
+  memset (to_radiotap, 0, sizeof (struct Radiotap_rx));
+  write_pout->size += sizeof (struct Radiotap_rx);
+
+  to_data = to_radiotap + sizeof (struct Radiotap_rx);
+  memcpy (to_data,
+          ((char *) hdr) + sizeof (struct Radiotap_Send) +
+          sizeof (struct GNUNET_MessageHeader),
+          ntohs (hdr->size) - sizeof (struct Radiotap_Send) -
+          sizeof (struct GNUNET_MessageHeader));
+  write_pout->size +=
+      ntohs (hdr->size) - sizeof (struct Radiotap_Send) -
+      sizeof (struct GNUNET_MessageHeader);
+}
+
+static void
+file_in_send (void *cls, void *client, const struct GNUNET_MessageHeader *hdr)
+{
+  struct sendbuf *write_std = cls;
+  uint16_t sendsize;
+
+  sendsize = ntohs (hdr->size);
+
+  if (GNUNET_MESSAGE_TYPE_WLAN_HELPER_DATA != ntohs (hdr->type))
+  {
+    fprintf (stderr, "Function file_in_send: wrong packet type\n");
+    exit (1);
+  }
+  if ((sendsize + write_std->size) > MAXLINE * 2)
+  {
+    fprintf (stderr, "Function file_in_send: Packet too big for buffer\n");
+    exit (1);
+  }
+
+  memcpy (write_std->buf + write_std->size, hdr, sendsize);
+  write_std->size += sendsize;
+}
+
+int closeprog;
+
+
+int
+testmode (int argc, char *argv[])
+{
+  struct stat st;
+  int erg;
+
+  FILE *fpin = NULL;
+  FILE *fpout = NULL;
+
+  int fdpin;
+  int fdpout;
+
+  //make the fifos if needed
+  if (0 != stat (FIFO_FILE1, &st))
+  {
+    if (0 == stat (FIFO_FILE2, &st))
+    {
+      fprintf (stderr, "FIFO_FILE2 exists, but FIFO_FILE1 not\n");
+      exit (1);
+    }
+
+    umask (0);
+    //unlink(FIFO_FILE1);
+    //unlink(FIFO_FILE2);
+    // FIXME: use mkfifo!
+    erg = mkfifo (FIFO_FILE1, 0666);
+    if (0 != erg)
+    {
+      fprintf (stderr, "Error at mkfifo1: %s\n", strerror (errno));
+      //exit(1);
+    }
+    erg = mkfifo (FIFO_FILE2, 0666);
+    if (0 != erg)
+    {
+      fprintf (stderr, "Error at mkfifo2: %s\n", strerror (errno));
+      //exit(1);
+    }
+
+  }
+  else
+  {
+
+    if (0 != stat (FIFO_FILE2, &st))
+    {
+      fprintf (stderr, "FIFO_FILE1 exists, but FIFO_FILE2 not\n");
+      exit (1);
+    }
+
+  }
+
+  if (strstr (argv[1], "1"))
+  {
+    //fprintf(stderr, "First\n");
+    first = 1;
+    fpin = fopen (FIFO_FILE1, "r");
+    if (NULL == fpin)
+    {
+      fprintf (stderr, "fopen of read FIFO_FILE1\n");
+      goto end;
+    }
+    fpout = fopen (FIFO_FILE2, "w");
+    if (NULL == fpout)
+    {
+      fprintf (stderr, "fopen of write FIFO_FILE2\n");
+      goto end;
+    }
+
+  }
+  else
+  {
+    first = 0;
+    //fprintf(stderr, "Second\n");
+    fpout = fopen (FIFO_FILE1, "w");
+    if (NULL == fpout)
+    {
+      fprintf (stderr, "fopen of write FIFO_FILE1\n");
+      goto end;
+    }
+    fpin = fopen (FIFO_FILE2, "r");
+    if (NULL == fpin)
+    {
+      fprintf (stderr, "fopen of read FIFO_FILE2\n");
+      goto end;
+    }
+
+  }
+
+  fdpin = fileno (fpin);
+  GNUNET_assert (fpin >= 0);
+
+  if (fdpin >= FD_SETSIZE)
+  {
+    fprintf (stderr, "File fdpin number too large (%d > %u)\n", fdpin,
+             (unsigned int) FD_SETSIZE);
+    goto end;
+  }
+
+  fdpout = fileno (fpout);
+  GNUNET_assert (fdpout >= 0);
+
+  if (fdpout >= FD_SETSIZE)
+  {
+    fprintf (stderr, "File fdpout number too large (%d > %u)\n", fdpout,
+             (unsigned int) FD_SETSIZE);
+    goto end;
+
+  }
+
+  signal (SIGINT, &sigfunc);
+  signal (SIGTERM, &sigfunc);
+
+  char readbuf[MAXLINE];
+  int readsize = 0;
+  struct sendbuf write_std;
+
+  write_std.size = 0;
+  write_std.pos = 0;
+
+  struct sendbuf write_pout;
+
+  write_pout.size = 0;
+  write_pout.pos = 0;
+
+  int ret = 0;
+  int maxfd = 0;
+
+  fd_set rfds;
+  fd_set wfds;
+  struct timeval tv;
+  int retval;
+
+  struct GNUNET_SERVER_MessageStreamTokenizer *stdin_mst;
+  struct GNUNET_SERVER_MessageStreamTokenizer *file_in_mst;
+
+  stdin_mst = GNUNET_SERVER_mst_create (&stdin_send, &write_pout);
+  file_in_mst = GNUNET_SERVER_mst_create (&file_in_send, &write_std);
+
+  //send mac first
+
+  struct MacAddress macaddr;
+
+  //Send random mac address
+  macaddr.mac[0] = 0x13;
+  macaddr.mac[1] = 0x22;
+  macaddr.mac[2] = 0x33;
+  macaddr.mac[3] = 0x44;
+  macaddr.mac[4] = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_STRONG, 
256);
+  macaddr.mac[5] = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_NONCE, 256);
+
+  write_std.size = send_mac_to_plugin (write_std.buf, macaddr.mac);
+
+  while (0 == closeprog)
+  {
+
+    maxfd = 0;
+
+    //set timeout
+    tv.tv_sec = 5;
+    tv.tv_usec = 0;
+
+    FD_ZERO (&rfds);
+    // if output queue is empty
+    if (0 == write_pout.size)
+    {
+      FD_SET (STDIN_FILENO, &rfds);
+
+    }
+    if (0 == write_std.size)
+    {
+      FD_SET (fdpin, &rfds);
+      maxfd = fdpin;
+    }
+    FD_ZERO (&wfds);
+    // if there is something to write
+    if (0 < write_std.size)
+    {
+      FD_SET (STDOUT_FILENO, &wfds);
+      maxfd = MAX (maxfd, STDOUT_FILENO);
+    }
+
+    if (0 < write_pout.size)
+    {
+      FD_SET (fdpout, &wfds);
+      maxfd = MAX (maxfd, fdpout);
+    }
+
+    retval = select (maxfd + 1, &rfds, &wfds, NULL, &tv);
+
+    if (-1 == retval && EINTR == errno)
+    {
+      continue;
+    }
+    if (0 > retval)
+    {
+      fprintf (stderr, "select failed: %s\n", strerror (errno));
+      closeprog = 1;
+      break;
+    }
+
+    if (FD_ISSET (STDOUT_FILENO, &wfds))
+    {
+      ret =
+          write (STDOUT_FILENO, write_std.buf + write_std.pos,
+                 write_std.size - write_std.pos);
+      if (0 > ret)
+      {
+        closeprog = 1;
+        fprintf (stderr, "Write ERROR to STDOUT\n");
+        break;
+      }
+      else
+      {
+        write_std.pos += ret;
+        // check if finished
+        if (write_std.pos == write_std.size)
+        {
+          write_std.pos = 0;
+          write_std.size = 0;
+        }
+      }
+    }
+
+    if (FD_ISSET (fdpout, &wfds))
+    {
+      ret =
+          write (fdpout, write_pout.buf + write_pout.pos,
+                 write_pout.size - write_pout.pos);
+
+      if (0 > ret)
+      {
+        closeprog = 1;
+        fprintf (stderr, "Write ERROR to fdpout\n");
+      }
+      else
+      {
+        write_pout.pos += ret;
+        // check if finished
+        if (write_pout.pos == write_pout.size)
+        {
+          write_pout.pos = 0;
+          write_pout.size = 0;
+        }
+      }
+    }
+
+    if (FD_ISSET (STDIN_FILENO, &rfds))
+    {
+      readsize = read (STDIN_FILENO, readbuf, sizeof (readbuf));
+
+      if (0 > readsize)
+      {
+        closeprog = 1;
+        fprintf (stderr, "Read ERROR to STDIN_FILENO\n");
+      }
+      else if (0 < readsize)
+      {
+        GNUNET_SERVER_mst_receive (stdin_mst, NULL, readbuf, readsize,
+                                   GNUNET_NO, GNUNET_NO);
+
+      }
+      else
+      {
+        //eof
+        closeprog = 1;
+      }
+    }
+
+    if (FD_ISSET (fdpin, &rfds))
+    {
+      readsize = read (fdpin, readbuf, sizeof (readbuf));
+
+      if (0 > readsize)
+      {
+        closeprog = 1;
+        fprintf (stderr, "Read ERROR to fdpin: %s\n", strerror (errno));
+        break;
+      }
+      else if (0 < readsize)
+      {
+        GNUNET_SERVER_mst_receive (file_in_mst, NULL, readbuf, readsize,
+                                   GNUNET_NO, GNUNET_NO);
+
+      }
+      else
+      {
+        //eof
+        closeprog = 1;
+      }
+    }
+
+  }
+
+  //clean up
+
+  GNUNET_SERVER_mst_destroy (stdin_mst);
+  GNUNET_SERVER_mst_destroy (file_in_mst);
+
+end:
+  if (fpout != NULL)
+    fclose (fpout);
+  if (fpin != NULL)
+    fclose (fpin);
+
+  if (1 == first)
+  {
+    (void) unlink (FIFO_FILE1);
+    (void) unlink (FIFO_FILE2);
+  }
+
+  return (0);
+}
+
+int
+main (int argc, char *argv[])
+{
+  if (2 != argc)
+  {
+    fprintf (stderr,
+             "This program must be started with the operating mode as 
argument.\n");
+    fprintf (stderr,
+             "Usage: options\n" "options:\n" "1 = first loopback file\n"
+             "2 = second loopback file\n" "\n");
+    return 1;
+  }
+  if (strstr (argv[1], "1") || strstr (argv[1], "2"))
+    return testmode (argc, argv);
+  return 1;
+}

Modified: gnunet/src/transport/plugin_transport_wlan.c
===================================================================
--- gnunet/src/transport/plugin_transport_wlan.c        2011-11-24 16:25:55 UTC 
(rev 18307)
+++ gnunet/src/transport/plugin_transport_wlan.c        2011-11-25 08:55:19 UTC 
(rev 18308)
@@ -1497,7 +1497,7 @@
 wlan_transport_start_wlan_helper (struct Plugin *plugin)
 {
   const char *filenamehw = "gnunet-transport-wlan-helper";
-  char *filenameloopback = "gnunet-transport-wlan-helper-dummy";
+  const char *filenameloopback = "gnunet-transport-wlan-helper-dummy";
   char *absolute_filename = NULL;
 
   if (plugin->helper_is_running == GNUNET_YES){
@@ -1577,7 +1577,7 @@
 
 #if DEBUG_wlan
     GNUNET_log_from (GNUNET_ERROR_TYPE_INFO, PLUGIN_LOG_NAME,
-                     "Starting gnunet-wlan-helper loopback 1 process cmd: %s 
%s %i\n",
+                     "Starting gnunet-transport-wlan-helper-dummy loopback 1 
process cmd: %s %s %i\n",
                      absolute_filename, plugin->interface, plugin->testmode);
 #endif
     plugin->server_proc =
@@ -1596,7 +1596,7 @@
   {
 #if DEBUG_wlan
     GNUNET_log_from (GNUNET_ERROR_TYPE_INFO, PLUGIN_LOG_NAME,
-                     "Starting gnunet-wlan-helper loopback 2 process cmd: %s 
%s %i\n",
+                     "Starting gnunet-transport-wlan-helper-dummy loopback 2 
process cmd: %s %s %i\n",
                      absolute_filename, plugin->interface, plugin->testmode);
 #endif
 
@@ -1618,7 +1618,7 @@
   {
 #if DEBUG_wlan
     GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, PLUGIN_LOG_NAME,
-                     "Failed to start gnunet-wlan-helper process\n");
+                     "Failed to start gnunet-transport-wlan-helper process\n");
 #endif
     return GNUNET_SYSERR;
   }

Deleted: gnunet/src/transport/test_plugin_transport_wlan_dummy.c
===================================================================
--- gnunet/src/transport/test_plugin_transport_wlan_dummy.c     2011-11-24 
16:25:55 UTC (rev 18307)
+++ gnunet/src/transport/test_plugin_transport_wlan_dummy.c     2011-11-25 
08:55:19 UTC (rev 18308)
@@ -1,465 +0,0 @@
-/*
- This file is part of GNUnet.
- (C) 2010 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 transport/test_transport_wlan_dummy.c
- * @brief helper for the testcases for plugin_transport_wlan.c
- * @author David Brodski
- */
-
-#include <sys/socket.h>
-#include <sys/ioctl.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <sys/time.h>
-#include <sys/stat.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#include <errno.h>
-#include <resolv.h>
-#include <string.h>
-#include <utime.h>
-#include <unistd.h>
-#include <getopt.h>
-
-#include "platform.h"
-#include "gnunet_constants.h"
-#include "gnunet_os_lib.h"
-#include "gnunet_transport_plugin.h"
-#include "transport.h"
-#include "gnunet_util_lib.h"
-#include "plugin_transport_wlan.h"
-#include "gnunet_common.h"
-//#include "gnunet-transport-wlan-helper.h"
-#include "gnunet_crypto_lib.h"
-#include "wlan/loopback_helper.h"
-#include "wlan/helper_common.h"
-
-static int first;
-
-static void
-sigfunc (int sig)
-{
-  closeprog = 1;
-  (void) unlink (FIFO_FILE1);
-  (void) unlink (FIFO_FILE2);
-}
-
-static void
-stdin_send (void *cls, void *client, const struct GNUNET_MessageHeader *hdr)
-{
-  struct sendbuf *write_pout = cls;
-  int sendsize;
-  struct GNUNET_MessageHeader newheader;
-  char *to_data;
-  char *to_radiotap;
-  char *to_start;
-
-  sendsize =
-      ntohs (hdr->size) - sizeof (struct Radiotap_Send) +
-      sizeof (struct Radiotap_rx);
-
-  if (GNUNET_MESSAGE_TYPE_WLAN_HELPER_DATA != ntohs (hdr->type))
-  {
-    fprintf (stderr, "Function stdin_send: wrong packet type\n");
-    exit (1);
-  }
-  if ((sendsize + write_pout->size) > MAXLINE * 2)
-  {
-    fprintf (stderr, "Function stdin_send: Packet too big for buffer\n");
-    exit (1);
-  }
-
-  newheader.size = htons (sendsize);
-  newheader.type = htons (GNUNET_MESSAGE_TYPE_WLAN_HELPER_DATA);
-
-  to_start = write_pout->buf + write_pout->size;
-  memcpy (to_start, &newheader, sizeof (struct GNUNET_MessageHeader));
-  write_pout->size += sizeof (struct GNUNET_MessageHeader);
-
-  to_radiotap = to_start + sizeof (struct GNUNET_MessageHeader);
-  memset (to_radiotap, 0, sizeof (struct Radiotap_rx));
-  write_pout->size += sizeof (struct Radiotap_rx);
-
-  to_data = to_radiotap + sizeof (struct Radiotap_rx);
-  memcpy (to_data,
-          ((char *) hdr) + sizeof (struct Radiotap_Send) +
-          sizeof (struct GNUNET_MessageHeader),
-          ntohs (hdr->size) - sizeof (struct Radiotap_Send) -
-          sizeof (struct GNUNET_MessageHeader));
-  write_pout->size +=
-      ntohs (hdr->size) - sizeof (struct Radiotap_Send) -
-      sizeof (struct GNUNET_MessageHeader);
-}
-
-static void
-file_in_send (void *cls, void *client, const struct GNUNET_MessageHeader *hdr)
-{
-  struct sendbuf *write_std = cls;
-  uint16_t sendsize;
-
-  sendsize = ntohs (hdr->size);
-
-  if (GNUNET_MESSAGE_TYPE_WLAN_HELPER_DATA != ntohs (hdr->type))
-  {
-    fprintf (stderr, "Function file_in_send: wrong packet type\n");
-    exit (1);
-  }
-  if ((sendsize + write_std->size) > MAXLINE * 2)
-  {
-    fprintf (stderr, "Function file_in_send: Packet too big for buffer\n");
-    exit (1);
-  }
-
-  memcpy (write_std->buf + write_std->size, hdr, sendsize);
-  write_std->size += sendsize;
-}
-
-int closeprog;
-
-
-int
-testmode (int argc, char *argv[])
-{
-  struct stat st;
-  int erg;
-
-  FILE *fpin = NULL;
-  FILE *fpout = NULL;
-
-  int fdpin;
-  int fdpout;
-
-  //make the fifos if needed
-  if (0 != stat (FIFO_FILE1, &st))
-  {
-    if (0 == stat (FIFO_FILE2, &st))
-    {
-      fprintf (stderr, "FIFO_FILE2 exists, but FIFO_FILE1 not\n");
-      exit (1);
-    }
-
-    umask (0);
-    //unlink(FIFO_FILE1);
-    //unlink(FIFO_FILE2);
-    // FIXME: use mkfifo!
-    erg = mkfifo (FIFO_FILE1, 0666);
-    if (0 != erg)
-    {
-      fprintf (stderr, "Error at mkfifo1: %s\n", strerror (errno));
-      //exit(1);
-    }
-    erg = mkfifo (FIFO_FILE2, 0666);
-    if (0 != erg)
-    {
-      fprintf (stderr, "Error at mkfifo2: %s\n", strerror (errno));
-      //exit(1);
-    }
-
-  }
-  else
-  {
-
-    if (0 != stat (FIFO_FILE2, &st))
-    {
-      fprintf (stderr, "FIFO_FILE1 exists, but FIFO_FILE2 not\n");
-      exit (1);
-    }
-
-  }
-
-  if (strstr (argv[1], "1"))
-  {
-    //fprintf(stderr, "First\n");
-    first = 1;
-    fpin = fopen (FIFO_FILE1, "r");
-    if (NULL == fpin)
-    {
-      fprintf (stderr, "fopen of read FIFO_FILE1\n");
-      goto end;
-    }
-    fpout = fopen (FIFO_FILE2, "w");
-    if (NULL == fpout)
-    {
-      fprintf (stderr, "fopen of write FIFO_FILE2\n");
-      goto end;
-    }
-
-  }
-  else
-  {
-    first = 0;
-    //fprintf(stderr, "Second\n");
-    fpout = fopen (FIFO_FILE1, "w");
-    if (NULL == fpout)
-    {
-      fprintf (stderr, "fopen of write FIFO_FILE1\n");
-      goto end;
-    }
-    fpin = fopen (FIFO_FILE2, "r");
-    if (NULL == fpin)
-    {
-      fprintf (stderr, "fopen of read FIFO_FILE2\n");
-      goto end;
-    }
-
-  }
-
-  fdpin = fileno (fpin);
-  GNUNET_assert (fpin >= 0);
-
-  if (fdpin >= FD_SETSIZE)
-  {
-    fprintf (stderr, "File fdpin number too large (%d > %u)\n", fdpin,
-             (unsigned int) FD_SETSIZE);
-    goto end;
-  }
-
-  fdpout = fileno (fpout);
-  GNUNET_assert (fdpout >= 0);
-
-  if (fdpout >= FD_SETSIZE)
-  {
-    fprintf (stderr, "File fdpout number too large (%d > %u)\n", fdpout,
-             (unsigned int) FD_SETSIZE);
-    goto end;
-
-  }
-
-  signal (SIGINT, &sigfunc);
-  signal (SIGTERM, &sigfunc);
-
-  char readbuf[MAXLINE];
-  int readsize = 0;
-  struct sendbuf write_std;
-
-  write_std.size = 0;
-  write_std.pos = 0;
-
-  struct sendbuf write_pout;
-
-  write_pout.size = 0;
-  write_pout.pos = 0;
-
-  int ret = 0;
-  int maxfd = 0;
-
-  fd_set rfds;
-  fd_set wfds;
-  struct timeval tv;
-  int retval;
-
-  struct GNUNET_SERVER_MessageStreamTokenizer *stdin_mst;
-  struct GNUNET_SERVER_MessageStreamTokenizer *file_in_mst;
-
-  stdin_mst = GNUNET_SERVER_mst_create (&stdin_send, &write_pout);
-  file_in_mst = GNUNET_SERVER_mst_create (&file_in_send, &write_std);
-
-  //send mac first
-
-  struct MacAddress macaddr;
-
-  //Send random mac address
-  macaddr.mac[0] = 0x13;
-  macaddr.mac[1] = 0x22;
-  macaddr.mac[2] = 0x33;
-  macaddr.mac[3] = 0x44;
-  macaddr.mac[4] = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_STRONG, 
256);
-  macaddr.mac[5] = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_NONCE, 256);
-
-  write_std.size = send_mac_to_plugin (write_std.buf, macaddr.mac);
-
-  while (0 == closeprog)
-  {
-
-    maxfd = 0;
-
-    //set timeout
-    tv.tv_sec = 5;
-    tv.tv_usec = 0;
-
-    FD_ZERO (&rfds);
-    // if output queue is empty
-    if (0 == write_pout.size)
-    {
-      FD_SET (STDIN_FILENO, &rfds);
-
-    }
-    if (0 == write_std.size)
-    {
-      FD_SET (fdpin, &rfds);
-      maxfd = fdpin;
-    }
-    FD_ZERO (&wfds);
-    // if there is something to write
-    if (0 < write_std.size)
-    {
-      FD_SET (STDOUT_FILENO, &wfds);
-      maxfd = MAX (maxfd, STDOUT_FILENO);
-    }
-
-    if (0 < write_pout.size)
-    {
-      FD_SET (fdpout, &wfds);
-      maxfd = MAX (maxfd, fdpout);
-    }
-
-    retval = select (maxfd + 1, &rfds, &wfds, NULL, &tv);
-
-    if (-1 == retval && EINTR == errno)
-    {
-      continue;
-    }
-    if (0 > retval)
-    {
-      fprintf (stderr, "select failed: %s\n", strerror (errno));
-      closeprog = 1;
-      break;
-    }
-
-    if (FD_ISSET (STDOUT_FILENO, &wfds))
-    {
-      ret =
-          write (STDOUT_FILENO, write_std.buf + write_std.pos,
-                 write_std.size - write_std.pos);
-      if (0 > ret)
-      {
-        closeprog = 1;
-        fprintf (stderr, "Write ERROR to STDOUT\n");
-        break;
-      }
-      else
-      {
-        write_std.pos += ret;
-        // check if finished
-        if (write_std.pos == write_std.size)
-        {
-          write_std.pos = 0;
-          write_std.size = 0;
-        }
-      }
-    }
-
-    if (FD_ISSET (fdpout, &wfds))
-    {
-      ret =
-          write (fdpout, write_pout.buf + write_pout.pos,
-                 write_pout.size - write_pout.pos);
-
-      if (0 > ret)
-      {
-        closeprog = 1;
-        fprintf (stderr, "Write ERROR to fdpout\n");
-      }
-      else
-      {
-        write_pout.pos += ret;
-        // check if finished
-        if (write_pout.pos == write_pout.size)
-        {
-          write_pout.pos = 0;
-          write_pout.size = 0;
-        }
-      }
-    }
-
-    if (FD_ISSET (STDIN_FILENO, &rfds))
-    {
-      readsize = read (STDIN_FILENO, readbuf, sizeof (readbuf));
-
-      if (0 > readsize)
-      {
-        closeprog = 1;
-        fprintf (stderr, "Read ERROR to STDIN_FILENO\n");
-      }
-      else if (0 < readsize)
-      {
-        GNUNET_SERVER_mst_receive (stdin_mst, NULL, readbuf, readsize,
-                                   GNUNET_NO, GNUNET_NO);
-
-      }
-      else
-      {
-        //eof
-        closeprog = 1;
-      }
-    }
-
-    if (FD_ISSET (fdpin, &rfds))
-    {
-      readsize = read (fdpin, readbuf, sizeof (readbuf));
-
-      if (0 > readsize)
-      {
-        closeprog = 1;
-        fprintf (stderr, "Read ERROR to fdpin: %s\n", strerror (errno));
-        break;
-      }
-      else if (0 < readsize)
-      {
-        GNUNET_SERVER_mst_receive (file_in_mst, NULL, readbuf, readsize,
-                                   GNUNET_NO, GNUNET_NO);
-
-      }
-      else
-      {
-        //eof
-        closeprog = 1;
-      }
-    }
-
-  }
-
-  //clean up
-
-  GNUNET_SERVER_mst_destroy (stdin_mst);
-  GNUNET_SERVER_mst_destroy (file_in_mst);
-
-end:
-  if (fpout != NULL)
-    fclose (fpout);
-  if (fpin != NULL)
-    fclose (fpin);
-
-  if (1 == first)
-  {
-    (void) unlink (FIFO_FILE1);
-    (void) unlink (FIFO_FILE2);
-  }
-
-  return (0);
-}
-
-int
-main (int argc, char *argv[])
-{
-  if (2 != argc)
-  {
-    fprintf (stderr,
-             "This program must be started with the operating mode as 
argument.\n");
-    fprintf (stderr,
-             "Usage: options\n" "options:\n" "1 = first loopback file\n"
-             "2 = second loopback file\n" "\n");
-    return 1;
-  }
-  if (strstr (argv[1], "1") || strstr (argv[1], "2"))
-    return testmode (argc, argv);
-  return 1;
-}