unix

1 files changed, 462 insertions, 462 deletions

diff --git a/src/transport/test_plugin_transport_wlan_dummy.c b/src/transport/test_plugin_transport_wlan_dummy.c
index 21cc74aa2..71fcd29cf 100644
--- a/src/transport/test_plugin_transport_wlan_dummy.c
+++ b/src/transport/test_plugin_transport_wlan_dummy.c
@@ -1,465 +1,465 @@
-/*

- This file is part of GNUnet.

+/*
+ 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

+
+ 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

+
+ 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"

-

-int first;

-

-static void

-sigfunc(int sig)

-{

-  closeprog = 1;

-  unlink(FIFO_FILE1);

-  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;

-  unsigned char * from_data;

-  unsigned char * to_data;

-  //unsigned char * from_radiotap;

-  unsigned char * to_radiotap;

-  //unsigned char * from_start;

-  unsigned 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;

-  to_radiotap = to_start + sizeof(struct GNUNET_MessageHeader);

-  to_data = to_radiotap + sizeof(struct Radiotap_rx);

-

-  from_data = ((unsigned char *) hdr) + sizeof(struct Radiotap_Send)

-      + sizeof(struct GNUNET_MessageHeader);

-

-  memcpy(to_start, &newheader, sizeof(struct GNUNET_MessageHeader));

-  write_pout->size += sizeof(struct GNUNET_MessageHeader);

-

-  write_pout->size += sizeof(struct Radiotap_rx);

-

-  memcpy(to_data, from_data, 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 = mknod(FIFO_FILE1, S_IFIFO | 0666, 0);

-      if (0 != erg)

-        {

-          fprintf(stderr, "Error at mknode1 \n");

-          //exit(1);

-        }

-      erg = mknod(FIFO_FILE2, S_IFIFO | 0666, 0);

-      if (0 != erg)

-        {

-          fprintf(stderr, "Error at mknode2 \n");

-          //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((char *) 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)

-    {

-      unlink(FIFO_FILE1);

-      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;

-}

+
+ 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"
+
+int first;
+
+static void
+sigfunc(int sig)
+{
+  closeprog = 1;
+  unlink(FIFO_FILE1);
+  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;
+  unsigned char * from_data;
+  unsigned char * to_data;
+  //unsigned char * from_radiotap;
+  unsigned char * to_radiotap;
+  //unsigned char * from_start;
+  unsigned 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;
+  to_radiotap = to_start + sizeof(struct GNUNET_MessageHeader);
+  to_data = to_radiotap + sizeof(struct Radiotap_rx);
+
+  from_data = ((unsigned char *) hdr) + sizeof(struct Radiotap_Send)
+      + sizeof(struct GNUNET_MessageHeader);
+
+  memcpy(to_start, &newheader, sizeof(struct GNUNET_MessageHeader));
+  write_pout->size += sizeof(struct GNUNET_MessageHeader);
+
+  write_pout->size += sizeof(struct Radiotap_rx);
+
+  memcpy(to_data, from_data, 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 = mknod(FIFO_FILE1, S_IFIFO | 0666, 0);
+      if (0 != erg)
+        {
+          fprintf(stderr, "Error at mknode1 \n");
+          //exit(1);
+        }
+      erg = mknod(FIFO_FILE2, S_IFIFO | 0666, 0);
+      if (0 != erg)
+        {
+          fprintf(stderr, "Error at mknode2 \n");
+          //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((char *) 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)
+    {
+      unlink(FIFO_FILE1);
+      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;
+}