Bonjour

J'ai un programme en C que j'exécute dans une console pour qu'il se connecte à un serveur MMTP normalement certaines données qui ont été transférés d'un serveur sont stockés dans un fichier avec une fonction qui est appelée OutputFile()

le problème c'est que je dois afficher dans ma console ces données au lieu d'afficher les étapes de connexions avec le serveur

le programme qu'il m'on m'a donné est :
Code : Sélectionner tout - Visualiser dans une fenêtre à part
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#ifdef NT
  #include <windows.h>
#endif
 
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
 
#if defined(AIX) || defined(SUNOS) || defined(UNIX_SV) || defined(HPUX)
  #ifndef UNIX
    #define UNIX
  #endif
 
  #include <signal.h>
  #include <sys/types.h>
  #include <sys/time.h>
 
  typedef int BOOL;
  #define TRUE 1
  #define FALSE 0
#endif
 
#include "libpga.h"
 
static char* Receiver_c_Rev _UNUSED_="@(#) $Name: LIV_MMTP_SDK_2_14_p1 $ $Header: C:/receiver/receiver.c,v 1.5 1999/07/02 08:34:18 fred Exp $";
 
// Constants.
// ----------
#define REPLY_TIMEOUT 10000
#define LOOP_DELAY      100
#define WINDOW_SIZE      50
 
// Global variables prototypes.
// ----------------------------
// Handle of the MMTP session.
MMTPSESSION Session;
// Last sequence number received by the server.
int LastSeqNb=0;
// Indicate if a Ctrl+C keystroke has been received.
static BOOL Interrupt=FALSE;
// Must quit the program ?
BOOL Quit=TRUE;
// Handle of the output file.
FILE* OutputFile=NULL;
// Tcp port of the server.
short TcpPort;
// IP Address of the server.
char IpAddr[50];
// User name.
char User[50];
// Password of the user.
char Password[50];
// MsgId of the last message received.
static char LastMsgIdReceived[FIELD_SIZE_MSGID+1];
 
// Static functions prototypes.
// ----------------------------
static FILE* OpenOutputFile(char* Filename);
static BOOL ConnectServer(void);
static void DisconnectServer(MMTPDcnxRsn Reason);
static BOOL ReceiveServerMessage(void);
static void ProcessConnectionAcceptance(void);
static void ProcessServiceMessage(MMTPSrvcMsg* SrvcMsg);
static void ProcessDataMessage(MMTPMsg* Msg);
static int ProcessMmtpError(int Error);
 
#ifdef NT
  BOOL WINAPI ControlHandler(DWORD Signal);
  #define WaitMs(x) Sleep(x)
#elif defined(UNIX)
  void ControlHandler(int Signal);
  void WaitMs(unsigned long MilliSeconds);
#endif
 
/*******************************************************************************
* int main(int argc,char** argv)
*
* Description
*   Main function of the program.
*
* Parameters
*   argc
*     Number of parameters
*
*   argv
*     Parameters of the program.
*
* Return code
*   Always 0.
*******************************************************************************/
 
int main(int argc,char** argv)
{
  int rc;
  BOOL MustWait;
 
  if(argc!=6)
  {
    puts("Missing parameter(s)");
    puts("Syntax : Receiver <Port> <IpAddr> <User> <Password> <Output file>");
    return(0);
  }
 
  // Catch interrupt signals
  #ifdef NT
    SetConsoleCtrlHandler(ControlHandler,TRUE);
  #elif defined(UNIX)
    signal(SIGQUIT,ControlHandler);
    signal(SIGKILL,ControlHandler);
    signal(SIGTERM,ControlHandler);
    signal(SIGINT,ControlHandler);
  #endif
 
  TcpPort=(short)atoi(argv[1]);
  strcpy(IpAddr,argv[2]);
  strcpy(User,argv[3]);
  strcpy(Password,argv[4]);
 
  // Open the output file.
  OutputFile=OpenOutputFile(argv[5]);
  if(OutputFile!=NULL)
  {
    // Initialize the MMTP library (for one session only).
    rc=MMTPInitialize(1);
    if(rc==MMTP_OK)
    {
      // Create the session.
      rc=MMTPCreateSession(NULL,NULL,&Session);
      if(rc==MMTP_OK)
      {
        Quit=FALSE;
      }
      // Error during create session.
      else
      {
        printf(
          "Error in MMTPCreateSession : %d - %s\n",rc,MMTPErrorDescription(rc));
      }
    }
    // Error during MMTP library initialization.
    else
    {
      printf("Error in MMTPInitialize : %d - %s\n",rc,MMTPErrorDescription(rc));
    }
  }
 
  // While the end is not asked or the logical connection exists.
  while(Quit==FALSE || MMTPCheckLogicalConnection(Session)==TRUE)
  {
    MustWait=FALSE;
 
    if(Interrupt==TRUE)
    {
      printf("Program interrupted by signal\n");
 
      DisconnectServer(MMTPDcnxRsn_Normal);
      Interrupt=FALSE;
    }
 
    // If the logical connection with the server is not established.
    if(MMTPCheckPhysicalConnection(Session)==FALSE)
    {
      if(Quit==FALSE)
      {
        if(ConnectServer()==FALSE)
        {
          MustWait=TRUE;
        }
      }
    }
    else
    {
      rc=MMTPTerminateWrite(Session);
      if(rc==MMTP_OK)
      {
        if(ReceiveServerMessage()==FALSE)
        {
          MustWait=TRUE;
        }
      }
      else if(rc!=MMTP_BUFFER_FULL)
      {
        ProcessMmtpError(rc);
        WaitMs(10);
      }
    }
 
    if(MustWait==TRUE)
    {
      WaitMs(LOOP_DELAY);
    }
  }
 
  // Delete the session if its handle is valid.
  if(MMTPCheckHandle(Session)==TRUE)
  {
    MMTPDeleteSession(Session);
  }
 
  // Close the library.
  MMTPTerminate();
 
  // Close the file, if opened.
  if(OutputFile!=NULL)
  {
    fclose(OutputFile);
  }
 
  return(0);
}
 
/*******************************************************************************
* FILE* OpenOutputFile(char* Filename)
*
* Description
*   Opens the file where the received message will be store.
*   If the file exists, get the MsgId of the last message received during
*   previous execution of the program.
*
* Parameters
*   Filename
*     Name of the output file.
*
* Return code
*   A handle of the file if the opening is successful. Otherwise NULL.
*******************************************************************************/
 
static FILE* OpenOutputFile(char* Filename)
{
  char Buffer[FIELD_SIZE_DATA+1];
  int NbLines=0;
  FILE* f=NULL;
 
  LastMsgIdReceived[0]=0;
 
  // Try to open an existing file.
  f=fopen(Filename,"a+");
  // If the opening is successful.
  if(f!=NULL)
  {
    // Find the last line of the file to gets the MsgId of the last msg received.
    while(fgets(Buffer,sizeof(Buffer),f)!=NULL)
    {
      NbLines++;
    }
 
    if(NbLines!=0 &&
       (strlen(Buffer)<FIELD_SIZE_MSGID+3 ||
        memcmp(Buffer+FIELD_SIZE_MSGID," - ",3)))
    {
      printf("The output file is invalid\n");
    }
    else
    {
      if(NbLines!=0)
      {
        memcpy(LastMsgIdReceived,Buffer,FIELD_SIZE_MSGID);
        LastMsgIdReceived[FIELD_SIZE_MSGID]=0;
      }
      return(f);
    }
  }
  else
  {
    printf("Unable to open the file\n");
  }
 
  if(f!=NULL)
  {
    fclose(f);
  }
 
  return(NULL);
}
 
/*******************************************************************************
* BOOL ConnectServer()
*
* Description
*   Try to establish physical connection with the server.
*
* Parameters
*   None
*
* Return code
*   TRUE if the physical connection is established. Otherwise FALSE.
*******************************************************************************/
 
static BOOL ConnectServer()
{
  int rc;
 
  printf("Try to establish the physical connection with the server\n");
 
  // Try to establish physical connection with the server.
  rc=MMTPOpenClientSession(Session,TcpPort,IpAddr,0);
  if(rc==MMTP_OK)
  {
    printf("Physical connection with the server established\n");
    return(TRUE);
  }
 
  if(rc!=MMTP_NOT_CONNECTED)
  {
    ProcessMmtpError(rc);
  }
 
  return(FALSE);
}
 
/*******************************************************************************
* void DisconnectServer(MMTPDcnxRsn Reason)
*
* Description
*   Closes the connection with the server. Sends a disconnection request if the
*   logical connection with the server is established.
*
* Parameters
*   Reason
*     The reason code of the disconnection.
*
* Return code
*   None
*******************************************************************************/
 
static void DisconnectServer(MMTPDcnxRsn Reason)
{
  Quit=TRUE;
 
  if(MMTPCheckLogicalConnection(Session)==TRUE &&
     MMTPTerminateWrite(Session)==MMTP_OK)
  {
    printf(
      "Send disconnection request to the server (reason %d, SeqNb %d)\n",
      Reason,LastSeqNb);
 
    ProcessMmtpError(
      MMTPDisconnectionRequest(Session,Reason,LastSeqNb));
    return;
  }
 
  if(MMTPCheckPhysicalConnection(Session)==TRUE)
  {
    printf("Physical connection with server is closed\n");
    ProcessMmtpError(MMTPCloseSession(Session));
  }
}
 
/*******************************************************************************
* BOOL ReceiveServerMessage()
*
* Description
*   Receives messages from the server processes them.
*
* Parameters
*   Reason
*     The reason code of the disconnection.
*
* Return code
*   TRUE if a message has been received, FALSE otherwise.
*******************************************************************************/
 
static BOOL ReceiveServerMessage()
{
  int rc;
  int Duration;
  MMTPMsg Msg;
 
  // If the logical connection with the server is not established.
  if(MMTPCheckLogicalConnection(Session)==FALSE)
  {
    // Get the time passed since the sending of the connection request.
    Duration=MMTPCheckConnectionRequest(Session);
    // If no connection request has been sent, sends one.
    if(Duration==-1)
    {
      printf("Sends a connection request.\n");
      ProcessMmtpError(
        MMTPConnectionRequest(Session,User,"0000000000000000",Password));
    }
    // If timeout, Cancels the connection request.
    else if(Duration>REPLY_TIMEOUT)
    {
      printf("Timeout on connection request. Cancels it.\n");
      ProcessMmtpError(MMTPCancelConnectionRequest(Session));
      Quit=TRUE;
      return(TRUE);
    }
  }
 
  if(MMTPCheckDisconnectionRequest(Session)>REPLY_TIMEOUT)
  {
    printf("Timeout on connection request. Cancels it.\n");
    ProcessMmtpError(MMTPCancelDisconnectionRequest(Session));
    return(TRUE);
  }
 
  // Look if a message is received.
  rc=MMTPReceiveMessage(Session,0,&Msg);
  // Process the return code.
  switch(rc)
  {
    // If a message has been received.
    case MMTP_OK:
      // Process the type of the received message.
      switch(Msg.Type)
      {
        // The connection request is accepted.
        case CONX_ACK:
          ProcessConnectionAcceptance();
          break;
 
        // The connection request is denied.
        case CONX_NACK:
          printf(
            "Connection request denied (reason %d)\n",Msg.Data.ConxNack.Reason);
          MMTPCloseSession(Session);
          Quit=TRUE;
          break;
 
        // Disconnection request.
        case DCNX_REQ:
          printf(
            "Disconnection request received (SeqNb %d)\n",
            Msg.Data.DcnxReq.SeqNb);
          MMTPAcceptDisconnection(Session,LastSeqNb);
          Quit=TRUE;
          break;
 
        // The disconnection request is accepted.
        case DCNX_ACK:
          printf(
            "Disconnection request accepted (SeqNb %d)\n",
            Msg.Data.DcnxAck.SeqNb);
          break;
 
        // Start request are refused.
        case START_REQ:
          printf(
            "%s received. Sending error\n",MMTPObtainPrimitiveName(Msg.Type));
          MMTPSendError(Session,MMTPErrIndErr_OutOfContext,0,LastSeqNb,&Msg);
          break;
 
        case START_ACK:
          printf(
            "Start request accepted (MsgId <%s>, SeqNb %d)\n",
            Msg.Data.StartAck.MsgId,Msg.Data.StartAck.SeqNb);
          LastSeqNb=Msg.Data.StartAck.SeqNb-1;
          break;
 
        case START_NACK:
          printf(
            "Start request refused (reason %d)\n",Msg.Data.StartNack.Reason);
          break;
 
        // Data message.
        case DATA_MSG:
          ProcessDataMessage(&Msg);
          break;
 
        // Sync request.
        case SYNC_REQ:
          printf(
            "Sync request received. Replies to it (SeqNb %d, MsgId <%s>)\n",
            LastSeqNb,LastMsgIdReceived);
          ProcessMmtpError(MMTPAcceptSync(Session,LastSeqNb,LastMsgIdReceived));
          break;
 
        // Service message.
        case SRVC_MSG:
          ProcessServiceMessage(&Msg.Data.SrvcMsg);
          break;
 
        // Other message.
        default:
          printf(
            "%s message received and ignored\n",
            MMTPObtainPrimitiveName(Msg.Type));
      }
      break;
 
    // The physical connection is lost.
    case MMTP_CNX_LOST:
      printf("Physical connection lost\n");
      break;
 
    // No message received.
    case MMTP_NO_MESSAGE:
      return(FALSE);
 
    // Other return code.
    default:
      ProcessMmtpError(rc);
  }
 
  return(TRUE);
}
 
/*******************************************************************************
* void ProcessConnectionAcceptance()
*
* Description
*   Processes a conx-ack message.
*   Sends a start-req message to the server.
*
* Parameters
*   None
*
* Return code
*   None
*******************************************************************************/
 
static void ProcessConnectionAcceptance()
{
  printf("Connection request accepted\n");
 
  printf("Send a start request (MsgId <%s>)\n",LastMsgIdReceived);
  ProcessMmtpError(MMTPStartRequest(Session,LastMsgIdReceived));
}
 
/*******************************************************************************
* void ProcessServiceMessage(MMTPSrvcMsg* SrvcMsg)
*
* Description
*   Processes a service message received from the server.
*   Sends a PONG service message if the service message received is a PING.
*   Ignores any other service messages.
*
* Parameters
*   SrvcMsg
*     Service message received from the server.
*
* Return code
*   None
*******************************************************************************/
 
static void ProcessServiceMessage(MMTPSrvcMsg* SrvcMsg)
{
  // if the service message is PING, reply a PONG.
  if(!strcmp(SrvcMsg->Type,"PING"))
  {
    MMTPSendServiceMessage(Session,"PONG",SrvcMsg->Size,SrvcMsg->Data);
  }
  // else, ignored the message.
  else
  {
    printf("The %s service message received is unknown\n",SrvcMsg->Type);
  }
}
 
/*******************************************************************************
* void ProcessDataMessage(MMTP* Msg)
*
* Description
*   Processes a data message received from the server.
*   Stores it in the output file.
*   Send an err-ind message if there is a break in the sequence number.
*
* Parameters
*   Msg
*     Message received from the server.
*
* Return code
*   None
*******************************************************************************/
 
static void ProcessDataMessage(MMTPMsg* Msg)
{
  MMTPDataMsg* DataMsg=&Msg->Data.DataMsg;
 
  // For simplify the sample, we just store the message id
  // in memory. In a real application, it is necessary to
  // store it in a file or a database.
  strcpy(LastMsgIdReceived,DataMsg->AD.Data.Generic.MsgId);
 
  printf(
    "Data message received (SeqNb %d, MsgId %s)\n",
    DataMsg->SeqNb,LastMsgIdReceived);
  // If the message has already been received, close the session
  if(DataMsg->SeqNb<=LastSeqNb)
  {
    puts("Sequence number already received.");
    ProcessMmtpError(
      MMTPSendError(Session,MMTPErrIndErr_MsgDuplicate,0,LastSeqNb,Msg));
    ProcessMmtpError(MMTPCloseSession(Session));
    Quit=TRUE;
  }
  // If the sequence number of the message is not the one we are
  // waiting for, we close the session.
  else if(DataMsg->SeqNb!=LastSeqNb+1)
  {
    puts("Break in sequence number.");
    ProcessMmtpError(
      MMTPSendError(Session,MMTPErrIndErr_MsgLost,1,LastSeqNb,Msg));
    ProcessMmtpError(MMTPCloseSession(Session));
    Quit=TRUE;
  }
  // The sequence number of the message is the good one.
  else
  {
    LastSeqNb++;
    fprintf(
      OutputFile,"%-*s - %s\n",
      FIELD_SIZE_MSGID,LastMsgIdReceived,DataMsg->Data);
  }
}
 
/*******************************************************************************
* int ProcessMmtpError(int Error)
*
* Description
*   Process MMTP return codes.
*
* Parameters
*   Error
*     Return code to process.
*
* Return code
*   The return code given in parameter.
*******************************************************************************/
 
int ProcessMmtpError(int Error)
{
  switch(Error)
  {
    case MMTP_OK:
    case MMTP_NO_MESSAGE:
      break;
 
    case MMTP_CNX_LOST:
      printf("MMTP physical connection lost\n");
      break;
 
    case MMTP_NOT_CONNECTED:
      printf("MMTP logical connection not established\n");
      break;
 
    case MMTP_BUFFER_FULL:
      printf("Warning : the server socket is full\n");
      break;
 
    case MMTP_CANNOT_INIT_SOCKET:
    case MMTP_NOT_ENOUGH_MEMORY:
    case MMTP_TOO_MUCH_SESSIONS:
    case MMTP_SOCKET_ERROR:
    case MMTP_INVALID_ADDRESS:
    case MMTP_INVALID_ARG:
    case MMTP_INVALID_ARG1:
    case MMTP_INVALID_ARG2:
    case MMTP_INVALID_ARG3:
    case MMTP_INVALID_ARG4:
    case MMTP_INVALID_ARG5:
    case MMTP_INVALID_ARG6:
    case MMTP_INVALID_ARG7:
    case MMTP_INVALID_ARG8:
    case MMTP_INVALID_ARG9:
    case MMTP_CLIENT_FCT:
    case MMTP_SERVER_FCT:
    case MMTP_INVALID_SESSION:
    case MMTP_NOT_INITIALIZED:
    case MMTP_SYSTEM_EXCEPTION:
      printf(
        "Fatal error in MMTP connection : %d - %s\n",
        Error,MMTPErrorDescription(Error));
      DisconnectServer(MMTPDcnxRsn_Abnormal);
      Quit=TRUE;
      break;
 
    default:
      printf(
        "Error in MMTP connection : %d - %s\n",
        Error,MMTPErrorDescription(Error));
  }
 
  return(Error);
}
 
#ifdef NT
 
  BOOL WINAPI ControlHandler(DWORD Signal)
  {
    if(Signal==CTRL_BREAK_EVENT ||
       Signal==CTRL_C_EVENT ||
       Signal==CTRL_CLOSE_EVENT)
    {
      Interrupt=TRUE;
 
      return(TRUE);
    }
 
    return(FALSE);
  }
 
#elif defined(UNIX)
 
  void ControlHandler(int Signal)
  {
    Interrupt=TRUE;
  }
 
  void WaitMs(unsigned long MilliSeconds)
  {
    struct timeval t={ MilliSeconds/1000, (MilliSeconds%1000)*1000 };
 
    select(0,NULL,NULL,NULL,&t);
  }
#endif
les modifications que j'ai fait et qui m'ont donné aucun résultats :s :s
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#ifdef NT
  #include <windows.h>
#endif
 
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
 
#if defined(AIX) || defined(SUNOS) || defined(UNIX_SV) || defined(HPUX)
  #ifndef UNIX
    #define UNIX
  #endif
 
  #include <signal.h>
  #include <sys/types.h>
  #include <sys/time.h>
 
  typedef int BOOL;
  #define TRUE 1
  #define FALSE 0
#endif
 
#include "libpga.h"
 
static char* Receiver_c_Rev _UNUSED_="@(#) $Name: LIV_MMTP_SDK_2_14_p1 $ $Header: C:/receiver/receiver.c,v 1.5 1999/07/02 08:34:18 fred Exp $";
 
// Constants.
// ----------
#define REPLY_TIMEOUT 10000
#define LOOP_DELAY      100
#define WINDOW_SIZE      50
 
// Global variables prototypes.
// ----------------------------
// Handle of the MMTP session.
MMTPSESSION Session;
// Last sequence number received by the server.
int LastSeqNb=0;
// Indicate if a Ctrl+C keystroke has been received.
static BOOL Interrupt=FALSE;
// Must quit the program ?
BOOL Quit=TRUE;
// Handle of the output file.
FILE* OutputFile=NULL;
// Tcp port of the server.
short TcpPort;
// IP Address of the server.
char IpAddr[50];
// User name.
char User[50];
// Password of the user.
char Password[50];
// MsgId of the last message received.
static char LastMsgIdReceived[FIELD_SIZE_MSGID+1];
 
// Static functions prototypes.
// ----------------------------
//static FILE* OpenOutputFile(char* Filename);
static BOOL ConnectServer(void);
static void DisconnectServer(MMTPDcnxRsn Reason);
static BOOL ReceiveServerMessage(void);
static void ProcessConnectionAcceptance(void);
static void ProcessServiceMessage(MMTPSrvcMsg* SrvcMsg);
static void ProcessDataMessage(MMTPMsg* Msg);
static int ProcessMmtpError(int Error);
 
#ifdef NT
  BOOL WINAPI ControlHandler(DWORD Signal);
  #define WaitMs(x) Sleep(x)
#elif defined(UNIX)
  void ControlHandler(int Signal);
  void WaitMs(unsigned long MilliSeconds);
#endif
 
/*******************************************************************************
* int main(int argc,char** argv)
*
* Description
*   Main function of the program.
*
* Parameters
*   argc
*     Number of parameters
*
*   argv
*     Parameters of the program.
*
* Return code
*   Always 0.
*******************************************************************************/
 
int main(int argc,char** argv)
{
  int rc;
  BOOL MustWait;
 
  if(argc!=5)
  {
    puts("Missing parameter(s)");
    puts("Syntax : Receiver <Port> <IpAddr> <User> <Password> ");
    return(0);
  }
 
  // Catch interrupt signals
  #ifdef NT
    SetConsoleCtrlHandler(ControlHandler,TRUE);
  #elif defined(UNIX)
    signal(SIGQUIT,ControlHandler);
    signal(SIGKILL,ControlHandler);
    signal(SIGTERM,ControlHandler);
    signal(SIGINT,ControlHandler);
  #endif
 
  TcpPort=(short)atoi(argv[1]);
  strcpy(IpAddr,argv[2]);
  strcpy(User,argv[3]);
  strcpy(Password,argv[4]);
 char Buffer[FIELD_SIZE_DATA+1];
   LastMsgIdReceived[0]=0;
int a = 1;
  // Open the output file.
  //OutputFile=OpenOutputFile(argv[5]);
  if(a=1)
  {
    // Initialize the MMTP library (for one session only).
    memcpy(LastMsgIdReceived,Buffer,FIELD_SIZE_MSGID);
    LastMsgIdReceived[FIELD_SIZE_MSGID]=0;
    rc=MMTPInitialize(1);
    if(rc==MMTP_OK)
    {
      // Create the session.
      rc=MMTPCreateSession(NULL,NULL,&Session);
      if(rc==MMTP_OK)
      {
                  puts(Buffer);
        Quit=FALSE;
      }
      // Error during create session.
      else
      {
        printf(
          "Error in MMTPCreateSession : %d - %s\n",rc,MMTPErrorDescription(rc));
      }
    }
    // Error during MMTP library initialization.
    else
    {
      printf("Error in MMTPInitialize : %d - %s\n",rc,MMTPErrorDescription(rc));
    }}
 
 
  // While the end is not asked or the logical connection exists.
  while(Quit==FALSE || MMTPCheckLogicalConnection(Session)==TRUE)
  {
    MustWait=FALSE;
 
    if(Interrupt==TRUE)
    {
      printf("Program interrupted by signal\n");
 
      DisconnectServer(MMTPDcnxRsn_Normal);
      Interrupt=FALSE;
    }
 
    // If the logical connection with the server is not established.
    if(MMTPCheckPhysicalConnection(Session)==FALSE)
    {
      if(Quit==FALSE)
      {
        if(ConnectServer()==FALSE)
        {
          MustWait=TRUE;
        }
      }
    }
    else
    {
      rc=MMTPTerminateWrite(Session);
      if(rc==MMTP_OK)
      {
        if(ReceiveServerMessage()==FALSE)
        {
          MustWait=TRUE;
        }
      }
      else if(rc!=MMTP_BUFFER_FULL)
      {
        ProcessMmtpError(rc);
//       WaitMs(10);
      }
    }
 
    if(MustWait==TRUE)
    {
  //   WaitMs(LOOP_DELAY);
    }
  }
 
  // Delete the session if its handle is valid.
  if(MMTPCheckHandle(Session)==TRUE)
  {
    MMTPDeleteSession(Session);
  }
 
  // Close the library.
  MMTPTerminate();
 
  // Close the file, if opened.
  if(OutputFile!=NULL)
  {
    fclose(OutputFile);
  }
 
  return(0);
}
 
/*******************************************************************************
* FILE* OpenOutputFile(char* Filename)
*
* Description
*   Opens the file where the received message will be store.
*   If the file exists, get the MsgId of the last message received during
*   previous execution of the program.
*
* Parameters
*   Filename
*     Name of the output file.
*
* Return code
*   A handle of the file if the opening is successful. Otherwise NULL.
*******************************************************************************/
 
/*static FILE* OpenOutputFile(char* Filename)
{
  char Buffer[FIELD_SIZE_DATA+1];
  int NbLines=0;
  FILE* f=NULL;
 
  LastMsgIdReceived[0]=0;
 
  // Try to open an existing file.
  f=fopen(Filename,"a+");
  // If the opening is successful.
  if(f!=NULL)
  {
    // Find the last line of the file to gets the MsgId of the last msg received.
    while(fgets(Buffer,sizeof(Buffer),f)!=NULL)
    {
      NbLines++;
    }
 
    if(NbLines!=0 &&
       (strlen(Buffer)<FIELD_SIZE_MSGID+3 ||
        memcmp(Buffer+FIELD_SIZE_MSGID," - ",3)))
    {
      printf("The output file is invalid\n");
    }
    else
    {
      if(NbLines!=0)
      {
        memcpy(LastMsgIdReceived,Buffer,FIELD_SIZE_MSGID);
        LastMsgIdReceived[FIELD_SIZE_MSGID]=0;
      }
      return(f);
    }
  }
  else
  {
    printf("Unable to open the file\n");
  }
 
  if(f!=NULL)
  {
    fclose(f);
  }
 
  return(NULL);
}*/
 
/*******************************************************************************
* BOOL ConnectServer()
*
* Description
*   Try to establish physical connection with the server.
*
* Parameters
*   None
*
* Return code
*   TRUE if the physical connection is established. Otherwise FALSE.
*******************************************************************************/
 
static BOOL ConnectServer()
{
  int rc;
 
  printf("Try to establish the physical connection with the server\n");
 
  // Try to establish physical connection with the server.
  rc=MMTPOpenClientSession(Session,TcpPort,IpAddr,0);
  if(rc==MMTP_OK)
  {
    printf("Physical connection with the server established\n");
    return(TRUE);
  }
 
  if(rc!=MMTP_NOT_CONNECTED)
  {
    ProcessMmtpError(rc);
  }
 
  return(FALSE);
}
 
/*******************************************************************************
* void DisconnectServer(MMTPDcnxRsn Reason)
*
* Description
*   Closes the connection with the server. Sends a disconnection request if the
*   logical connection with the server is established.
*
* Parameters
*   Reason
*     The reason code of the disconnection.
*
* Return code
*   None
*******************************************************************************/
 
static void DisconnectServer(MMTPDcnxRsn Reason)
{
  Quit=TRUE;
 
  if(MMTPCheckLogicalConnection(Session)==TRUE &&
     MMTPTerminateWrite(Session)==MMTP_OK)
  {
    printf(
      "Send disconnection request to the server (reason %d, SeqNb %d)\n",
      Reason,LastSeqNb);
 
    ProcessMmtpError(
      MMTPDisconnectionRequest(Session,Reason,LastSeqNb));
    return;
  }
 
  if(MMTPCheckPhysicalConnection(Session)==TRUE)
  {
    printf("Physical connection with server is closed\n");
    ProcessMmtpError(MMTPCloseSession(Session));
  }
}
 
/*******************************************************************************
* BOOL ReceiveServerMessage()
*
* Description
*   Receives messages from the server processes them.
*
* Parameters
*   Reason
*     The reason code of the disconnection.
*
* Return code
*   TRUE if a message has been received, FALSE otherwise.
*******************************************************************************/
 
static BOOL ReceiveServerMessage()
{
  int rc;
  int Duration;
  MMTPMsg Msg;
 
  // If the logical connection with the server is not established.
  if(MMTPCheckLogicalConnection(Session)==FALSE)
  {
    // Get the time passed since the sending of the connection request.
    Duration=MMTPCheckConnectionRequest(Session);
    // If no connection request has been sent, sends one.
    if(Duration==-1)
    {
      printf("Sends a connection request.\n");
      ProcessMmtpError(
        MMTPConnectionRequest(Session,User,"0000000000000000",Password));
    }
    // If timeout, Cancels the connection request.
    else if(Duration>REPLY_TIMEOUT)
    {
      printf("Timeout on connection request. Cancels it.\n");
      ProcessMmtpError(MMTPCancelConnectionRequest(Session));
      Quit=TRUE;
      return(TRUE);
    }
  }
 
  if(MMTPCheckDisconnectionRequest(Session)>REPLY_TIMEOUT)
  {
    printf("Timeout on connection request. Cancels it.\n");
    ProcessMmtpError(MMTPCancelDisconnectionRequest(Session));
    return(TRUE);
  }
 
  // Look if a message is received.
  rc=MMTPReceiveMessage(Session,0,&Msg);
  // Process the return code.
  switch(rc)
  {
    // If a message has been received.
    case MMTP_OK:
      // Process the type of the received message.
      switch(Msg.Type)
      {
        // The connection request is accepted.
        case CONX_ACK:
          ProcessConnectionAcceptance();
          break;
 
        // The connection request is denied.
        case CONX_NACK:
          printf(
            "Connection request denied (reason %d)\n",Msg.Data.ConxNack.Reason);
          MMTPCloseSession(Session);
          Quit=TRUE;
          break;
 
        // Disconnection request.
        case DCNX_REQ:
          printf(
            "Disconnection request received (SeqNb %d)\n",
            Msg.Data.DcnxReq.SeqNb);
          MMTPAcceptDisconnection(Session,LastSeqNb);
          Quit=TRUE;
          break;
 
        // The disconnection request is accepted.
        case DCNX_ACK:
          printf(
            "Disconnection request accepted (SeqNb %d)\n",
            Msg.Data.DcnxAck.SeqNb);
          break;
 
        // Start request are refused.
        case START_REQ:
          printf(
            "%s received. Sending error\n",MMTPObtainPrimitiveName(Msg.Type));
          MMTPSendError(Session,MMTPErrIndErr_OutOfContext,0,LastSeqNb,&Msg);
          break;
 
        case START_ACK:
          printf(
            "Start request accepted (MsgId <%s>, SeqNb %d)\n",
            Msg.Data.StartAck.MsgId,Msg.Data.StartAck.SeqNb);
          LastSeqNb=Msg.Data.StartAck.SeqNb-1;
          break;
 
        case START_NACK:
          printf(
            "Start request refused (reason %d)\n",Msg.Data.StartNack.Reason);
          break;
 
        // Data message.
        case DATA_MSG:
          ProcessDataMessage(&Msg);
          break;
 
        // Sync request.
        case SYNC_REQ:
          printf(
            "Sync request received. Replies to it (SeqNb %d, MsgId <%s>)\n",
            LastSeqNb,LastMsgIdReceived);
          ProcessMmtpError(MMTPAcceptSync(Session,LastSeqNb,LastMsgIdReceived));
          break;
 
        // Service message.
        case SRVC_MSG:
          ProcessServiceMessage(&Msg.Data.SrvcMsg);
          break;
 
        // Other message.
        default:
          printf(
            "%s message received and ignored\n",
            MMTPObtainPrimitiveName(Msg.Type));
      }
      break;
 
    // The physical connection is lost.
    case MMTP_CNX_LOST:
      printf("Physical connection lost\n");
      break;
 
    // No message received.
    case MMTP_NO_MESSAGE:
      return(FALSE);
 
    // Other return code.
    default:
      ProcessMmtpError(rc);
  }
 
  return(TRUE);
}
 
/*******************************************************************************
* void ProcessConnectionAcceptance()
*
* Description
*   Processes a conx-ack message.
*   Sends a start-req message to the server.
*
* Parameters
*   None
*
* Return code
*   None
*******************************************************************************/
 
static void ProcessConnectionAcceptance()
{
  printf("Connection request accepted\n");
 
  printf("Send a start request (MsgId <%s>)\n",LastMsgIdReceived);
  ProcessMmtpError(MMTPStartRequest(Session,LastMsgIdReceived));
}
 
/*******************************************************************************
* void ProcessServiceMessage(MMTPSrvcMsg* SrvcMsg)
*
* Description
*   Processes a service message received from the server.
*   Sends a PONG service message if the service message received is a PING.
*   Ignores any other service messages.
*
* Parameters
*   SrvcMsg
*     Service message received from the server.
*
* Return code
*   None
*******************************************************************************/
 
static void ProcessServiceMessage(MMTPSrvcMsg* SrvcMsg)
{
  // if the service message is PING, reply a PONG.
  if(!strcmp(SrvcMsg->Type,"PING"))
  {
    MMTPSendServiceMessage(Session,"PONG",SrvcMsg->Size,SrvcMsg->Data);
  }
  // else, ignored the message.
  else
  {
    printf("The %s service message received is unknown\n",SrvcMsg->Type);
  }
}
 
/*******************************************************************************
* void ProcessDataMessage(MMTP* Msg)
*
* Description
*   Processes a data message received from the server.
*   Stores it in the output file.
*   Send an err-ind message if there is a break in the sequence number.
*
* Parameters
*   Msg
*     Message received from the server.
*
* Return code
*   None
*******************************************************************************/
 
static void ProcessDataMessage(MMTPMsg* Msg)
{
  MMTPDataMsg* DataMsg=&Msg->Data.DataMsg;
 
  // For simplify the sample, we just store the message id
  // in memory. In a real application, it is necessary to
  // store it in a file or a database.
  strcpy(LastMsgIdReceived,DataMsg->AD.Data.Generic.MsgId);
 
  printf(
    "Data message received (SeqNb %d, MsgId %s)\n",
    DataMsg->SeqNb,LastMsgIdReceived);
  // If the message has already been received, close the session
  if(DataMsg->SeqNb<=LastSeqNb)
  {
    puts("Sequence number already received.");
    ProcessMmtpError(
      MMTPSendError(Session,MMTPErrIndErr_MsgDuplicate,0,LastSeqNb,Msg));
    ProcessMmtpError(MMTPCloseSession(Session));
    Quit=TRUE;
  }
  // If the sequence number of the message is not the one we are
  // waiting for, we close the session.
  else if(DataMsg->SeqNb!=LastSeqNb+1)
  {
    puts("Break in sequence number.");
    ProcessMmtpError(
      MMTPSendError(Session,MMTPErrIndErr_MsgLost,1,LastSeqNb,Msg));
    ProcessMmtpError(MMTPCloseSession(Session));
    Quit=TRUE;
  }
  // The sequence number of the message is the good one.
  else
  {
    LastSeqNb++;
    fprintf(
      OutputFile,"%-*s - %s\n",
      FIELD_SIZE_MSGID,LastMsgIdReceived,DataMsg->Data);
  }
}
 
/*******************************************************************************
* int ProcessMmtpError(int Error)
*
* Description
*   Process MMTP return codes.
*
* Parameters
*   Error
*     Return code to process.
*
* Return code
*   The return code given in parameter.
*******************************************************************************/
 
int ProcessMmtpError(int Error)
{
  switch(Error)
  {
    case MMTP_OK:
    case MMTP_NO_MESSAGE:
      break;
 
    case MMTP_CNX_LOST:
      printf("MMTP physical connection lost\n");
      break;
 
    case MMTP_NOT_CONNECTED:
      printf("MMTP logical connection not established\n");
      break;
 
    case MMTP_BUFFER_FULL:
      printf("Warning : the server socket is full\n");
      break;
 
    case MMTP_CANNOT_INIT_SOCKET:
    case MMTP_NOT_ENOUGH_MEMORY:
    case MMTP_TOO_MUCH_SESSIONS:
    case MMTP_SOCKET_ERROR:
    case MMTP_INVALID_ADDRESS:
    case MMTP_INVALID_ARG:
    case MMTP_INVALID_ARG1:
    case MMTP_INVALID_ARG2:
    case MMTP_INVALID_ARG3:
    case MMTP_INVALID_ARG4:
    case MMTP_INVALID_ARG5:
    case MMTP_INVALID_ARG6:
    case MMTP_INVALID_ARG7:
    case MMTP_INVALID_ARG8:
    case MMTP_INVALID_ARG9:
    case MMTP_CLIENT_FCT:
    case MMTP_SERVER_FCT:
    case MMTP_INVALID_SESSION:
    case MMTP_NOT_INITIALIZED:
    case MMTP_SYSTEM_EXCEPTION:
      printf(
        "Fatal error in MMTP connection : %d - %s\n",
        Error,MMTPErrorDescription(Error));
      DisconnectServer(MMTPDcnxRsn_Abnormal);
      Quit=TRUE;
      break;
 
    default:
      printf(
        "Error in MMTP connection : %d - %s\n",
        Error,MMTPErrorDescription(Error));
  }
 
  return(Error);
}
 
#ifdef NT
 
  BOOL WINAPI ControlHandler(DWORD Signal)
  {
    if(Signal==CTRL_BREAK_EVENT ||
       Signal==CTRL_C_EVENT ||
       Signal==CTRL_CLOSE_EVENT)
    {
      Interrupt=TRUE;
 
      return(TRUE);
    }
 
    return(FALSE);
  }
 
#elif defined(UNIX)
 
  void ControlHandler(int Signal)
  {
    Interrupt=TRUE;
  }
 
  void WaitMs(unsigned long MilliSeconds)
  {
    struct timeval t={ MilliSeconds/1000, (MilliSeconds%1000)*1000 };
 
    select(0,NULL,NULL,NULL,&t);
  }
#endif
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